WGV water heater 23 Features of operation Repair. Apparatus Water Performance Flowing Household Gas

Send your good work in the knowledge base is simple. Use the form below

Students, graduate students, young scientists who use the knowledge base in their studies and work will be very grateful to you.

Posted on http://www.allbest.ru/

Flowing water heater WSV-23

1. Non-prior view on ecological and economicgas Industry Problems

It is known that Russia is the richest gas in the world's gas reserves.

Environmentally natural gas is the cleanest type of mineral fuel. When combustion, it produces a significantly smaller amount of harmful substances compared to other types of fuel.

However, burning huge amounts of humanity different species Fuel, including natural gas, over the past 40 years has led to a noticeable increase in carbon dioxide content in an atmosphere, which, like methane, is greenhouse gas. Most scientists are this circumstance consider the current warming of climate.

This problem has alarmed public circles and many statesmen after entering the book in Copenhagen Books "Our General Future" prepared by the UN Commission. It was reported that climate warming can cause the melting of the ice of the Arctic and Antarctica, which will lead to an increase of the world's ocean level, the flooding of island states and constant coasts of continents, which will be accompanied by economic and social shocks. To avoid them, it is necessary to dramatically reduce the use of all hydrocarbon fuels, including natural gas. On this issue, international conferences were convened, intergovernmental agreements were made. The atomicists of all countries have become the advantages of atomic energy destructive for humanity, the use of which is not accompanied by the extraction of carbon dioxide.

Meanwhile, the alarm was in vain. The fallacy of many predictions, data in the mentioned book is related to the lack of natural scientists in the UN Commission.

Nevertheless, the issue of increasing the level of the world's ocean was carefully studied and discussed at many international conferences. It turned out. That in connection with the warming of climate and melting of the ice, this level is really rising, but at a speed not exceeding 0.8 mm per year. In December 1997, at a conference in Kyoto, this figure was clarified and turned out to be 0.6 mm. So in 10 years, the ocean level will rise by 6 mm, and in a century, 6 cm. Of course, this figure to frighten anyone should.

In addition, it turned out that the vertical tectonic movement of coastal lines by an order of magnitude exceeds this value and reaches one, and even two centimeters per year. Therefore, despite the rise of 2 oceans levels, the sea in many places of melts and retreats (the North of the Baltic Sea, the coast of Alaska and Canada, the Chile coast).

Meanwhile, the global climate warming may have a number of positive consequences, especially for Russia. First of all, this process will contribute to an increase in water evaporation from the surface of the seas and oceans, the area of \u200b\u200bwhich is 320 million km. 2 climate will become more wet. Reduced and, drought can be ceased in the Lower Volga region and in the Caucasus. Start slowly move towards the north the border of agriculture. Significantly ease of swimming in the Northern Sea Route.

Reduced expenses for winter heating.

Finally, it is necessary to remember that carbon dioxide is food for all earth plants. It is precisely processing it and highlighting oxygen, they create primary organic matter. Back in 1927 V.I. Vernadsky pointed out that green plants could process and convert much more carbon dioxide into organic matter than the modern atmosphere can give. Therefore, it recommended the use of carbon dioxide as a fertilizer.

Subsequent experiments in phytotron confirmed forecast V.I. Vernadsky. When growing in conditions of double carbon dioxide, almost all cultural plants They grew faster, fruiting 6-8 days earlier and brought a crop at 20-30% higher than in control experiments with its usual content.

Consequently, agriculture is interested in enriching the atmosphere with carbon dioxide by burning hydrocarbon fuels.

It is useful to increase its content in the atmosphere and for more southern countries. Judging by Paleographic data, 6-8 thousand years ago during the so-called Holocene climatic optimum, when the average annual temperature on the latitude of Moscow was 2C above the present in Central Asia, there was a lot of water and there was no desert. Zeravshan fell into Amarya, r. Chu fell in Syrdarya, the level of the Aral Sea stood at +72 m and the United Central Asian rivers flowed through the current Turkmenistan to the deflection of the Southern Caspian. Sands of Kyzylkum and Karakum is the displeased later river alluvium of the recent past.

And the sugar whose area is 6 million km 2, also presented at this time not the desert, but a savanna with numerous herds of herbivores, full-flow rivers and settlements of the Neolithic man on the shores.

Thus, the burning of natural gas is not only economically 3 profitable, but also from an ecological point of view, because it contributes to warming and moisturizing climate. Another question arises: should we protect and save natural gas for our descendants? For the correct answer to this question, it should be noted that scientists stand on the verge of mastering the energy of nuclear synthesis, even more powerful than the energy of the nuclear decay, but not given radioactive waste, and therefore, in principle, more acceptable. According to American magazines, this will happen in the early years of the Coming Millennium.

Probably, they are mistaken relative to such short terms. Nevertheless, the possibility of such an alternative environmentally friendly energy in the near future is obvious that it is impossible not to be borne in mind when developing a long-term concept for the development of the gas industry.

Methods and methods of ecological and hydrogeological and hydrological studies of natural-technogenic systems in areas of gas and gas condensate deposits.

In ecological and hydrogeological and hydrological studies, it is urgent to address the search for effective and economical methods for studying the state and forecasting man-made processes in order to: develop a strategic concept of production management, ensuring the normal state of ecosystems to develop tactics to solve the complex of engineering problems that promote the rational use of resources of deposits; Implementation of flexible and effective environmental policy.

Ecological and hydrogeological and hydrological studies are based on monitoring data developed by now from the main principal positions. However, the task of constant monitoring optimization is preserved. The most vulnerable part of the monitoring is its analytic and instrumental base. In this connection, it is necessary: \u200b\u200bthe unification of methods for analyzing and modern laboratory equipment, which would allow economically, quickly, with great accuracy to perform analytical work; Creating a single document for the gas branch regulating the entire complex of analytical work.

Methodological techniques of ecological and hydrogeological and hydrological studies in the areas of activity of the gas industry in the overwhelming part are general, which is determined by the uniformity of the sources of technological impact, the composition of the components experiencing technological impact, 4 indicators of technogenic impact.

Features of natural conditions of areas of deposits, for example, landscape-climatic (arid, humid, etc., shelf, continent, etc.), the differences are due to the character, and in the unity of character, to the degree of intensity of the technological influence of the gas industry natural environments. Thus, in fresh groundwater of humiding areas, the concentration of pollutants coming down with the promotions often increases. In arid areas, due to the dilution of mineralized (characteristic of these areas), the concentration of pollutants in them is reduced by fresh or weak and wee-mineralized industrial industries.

Special attention to underground water, when consideration of environmental problems, flows from the concept of groundwater as a geological body, namely underground water - a natural system characterizing the unity and interdependence of the chemical and dynamic properties determined by the geochemical and structural features of underground water containing (breed) and the surrounding ( Atmosphere, biosphere, etc.) media.

From here the multi-faceted complexity of ecological and hydrogeological studies, which consists in simultaneously studying the technogenic effect on groundwater, the atmosphere, surface hydrosphere, a lithosphere (aeration zone breeds and water-receiving rocks), soil, biosphere, in the determination of hydrogeochemical, hydrogeodynamic and thermodynamic indicators of man-made changes, in studying Mineral organic and organic components of the hydrosphere and lithosphere, in the use of inventory and experimental methods.

Studies are subject to both ground (mining, processing and related objects) and underground (deposits, operational and injection wells) sources of technological impact.

Ecological and hydrogeological and hydrological studies make it possible to detect and evaluate almost all possible technogenic changes in natural and natural and technogenic environments in the territories of the enterprise of the gas industry. To do this, there is a major knowledge base about the geological and hydrogeological and landscape-climatic conditions that have developed in these territories, and the theoretical substantiation of the spread of man-made processes.

Any technogenic environmental impact is estimated to compare it with the background of the medium. Natural, natural and man-made, man-made background should be distinguished. The natural background for any indicator under consideration is represented by the value (values) formed in natural conditions, natural-technogenic - in 5 conditions experiencing (test) technogenic loads on the part of the strangers, not monitored in this particular case, technogenic - in the influence of The parties monitored (studied) in this particular case of a technogenic object. Technogenic background is used for a comparative spatial-time estimate of changes in the steppe of the technogenic effect on the medium during periods of operation of the object being tracked. This is a mandatory part of monitoring that ensures flexibility in managing technogenic processes and timely conducting environmental activities.

With the help of natural and natural-technogenic background, the anomalous state of the media under study is found and areas are established, characterized by different intensity. Anomalous state is recorded to exceed the actual (measured) values \u200b\u200band the indicator under study above its background values \u200b\u200b(spafing\u003e ton).

The technogenic object that causes the occurrence of man-made anomalies is established by comparing the actual values \u200b\u200bof the studied indicator with the values \u200b\u200bin the sources of man-made influence belonging to the tracked object.

2. Environmentalnatural Gas Benefits

There are issues related to the environment that prompted numerous research and discussions on an international scale: population growth issues, preservation of resources, diversity biological speciesClimate change. The last question is the most direct attitude to the energy sector of the 90s.

The need for a detailed study and formation of policies internationally led to the creation of an intergovernmental group of climate change professionals (MGIK) and the conclusion of the Climate Change Framework Convention (UNFCC) on the UN. Currently, the UNFCCC is ratified by more than 130 countries joined the Convention. The first conference of the parties (Kos-1) was held in Berlin in 1995, and the second (KOR-2) - in Geneva in 1996, the report of the MGIK was approved on Kos-2, which argued that there were already real evidence of The fact that human activity is responsible for climate change and the effect of "global warming".

Although there is an opinion that opposing the opinion of the MGIK, for example, the European Forum "Science and Environment", but the work of the MGIK at 6 is currently adopted as a reputable basis for the creators of politics, and it is unlikely that the impetus made by the UNFCCC will not encourage further development . Gases. having the most important, i.e. Those concentrations of which have increased significantly from the beginning of industrial activity, is carbon dioxide (CO2), methane (CH4) and nitrogen oxide (N2O). In addition, although the levels of them in the atmosphere are still low, the continuing growth of perfluorocarbon concentrations, and sulfur hexafluoride leads to the need to touch them. All these gases should be included in the national inventories represented by the RCC.

The effect of increasing gas concentrations caused by a greenhouse effect in the atmosphere has been modeled by MGIK on various scenarios. These model studies have shown systematic global climate change, starting from the XIX century. MGIK expects. Between 1990 and 2100, the average air temperature on the earth's surface will increase by 1.0-3.5 C. And the sea level will rise by 15-95 cm. In some places, more severe droughts and (or) floods are expected, at that time How they will be less severe in other places. It is expected that the forests will die that even more will change the absorption and freeing of carbon on land.

The expected temperature change will be too rapid so that individual types of animals and plants have time to adapt. And there is a decrease in the diversity of biological species.

Sources of carbon dioxide can be quantified with sufficient confidence. One of the most significant sources of growth of CO2 concentration in the atmosphere is the combustion of fossil fuels.

Natural gas produces less CO2 per unit of energy. supplied to the consumer. than other types of fossil fuels. Compared to these, the sources of methane are harder to express quantitatively.

On a global scale, according to estimates, sources associated with fossil fuels give about 27% of annual anthropogenic emissions to the atmosphere (19% of total emissions, anthropogenic and natural). Intervals of uncertainty in cases of these other sources are very large. For example. Emissions from garbage dumps are currently estimated at 10% of anthropogenic emissions, but they can be twice as high.

The global gas industry for many years studied the development of scientific ideas about climate change and related policies, and participated in discussions with well-known scientists working in this area. The International Gas Union, Eurogaz, National Organizations and individual companies participated in the collection of data and information related to this issue and thereby contributed to these discussions. And although there are still many uncertainties with respect to the exact estimate of the possible impact in the future gases that create a greenhouse effect, it is appropriate to apply the precautionary principle and ensure that economic efficient emission reduction activities have been carried out as soon as possible. Thus, the compilation of emission inventories and discussion regarding the technology of their decrease helped focus on the most appropriate measures to control and reduce gas emissions creating a greenhouse effect, in accordance with UNFCCC. The transition to industrial fuels with a lower carbon yield, such as natural gas, can reduce gas emissions creating a greenhouse effect, with sufficiently high economic efficiency, and such transitions are carried out in many regions.

The study of natural gas Instead of other types of fossil fuels, it is economically attractive and can make an important contribution to fulfilling the obligations adopted by individual countries in accordance with UNFCCC. This is a fuel that has a minimal environmental impact compared with other types of fossil fuels. The transition from fossil coal to natural gas while maintaining the same ratio of the efficiency of fuel energy conversion into electricity would reduce emissions by 40%. In 1994

The International MGS Environment Commission in the report at the World Gas Conference (1994) turned to studying the issue of climate change and showed that natural gas can make a significant contribution to a decrease in gas emissions creating a greenhouse effect and energy-related energy supply and energy consumption, Providing the same level of convenience, technical indicators and reliability, which will be required of energy supply in the future. Brochure Eurogas "Natural gas - cleaner energy for more clean Europe" demonstrates benefits from the use of natural gas, in terms of protection ambient, when considering issues from local up to 8 global levels.

Although natural gas has advantages, it is still very important to optimize its use. The gas industry supported the program improvement efficiency programs, supplemented by the development of environmental management, which even more strengthened the arguments in favor of gas from the standpoint of environmental protection as an effective fuel contributing to environmental protection in the future.

Carbon dioxide emissions around the world respond about 65% warming on the globe. The combined fossil fuel exempts CO2, accumulated by plants many millions of years ago, and increases its concentration in the atmosphere above the natural level.

The combustion of fossil fuels causes 75-90% of all anthropogenic carbon dioxide emissions. Based on the most recent data provided by the MGIK, the relative contribution of anthropogenic emissions to the enhancement of the greenhouse effect is estimated by the data.

Natural gas generates less CO2 with the same amount of energy generated to supply than coal or oil, since it contains more hydrogen with respect to carbon than other types of fuel. Due to its chemical structure, gas produces 40% less carbon dioxide than anthracite.

Emissions into the atmosphere when burning fossil fuels depend not only on the type of fuel, but how efficiently it is used. Gaseous fuel is usually burned easier and more efficient than coal or oil. The utilization of waste heat from exhaust gases in the case of natural gas is also simpler, since the furnace gas is not contaminated with solid particles or aggressive sulfur compounds. Thanks chemical composition, the simplicity and efficiency of use of natural gas can make a significant contribution to a decrease in carbon dioxide emissions by replacing fossil fuels.

3. Water heater WSV-23-1-3-P

gas device thermal water supply

Gas device using thermal energyobtained by burning gas to heate the flowing water for hot water supply.

Decoding flowing water heater VG 23-1-3-P: WSV-23 B-water heater P - flowing G - gas 23 - heat power 23000 kcal / h. At the beginning of the 70s, the domestic industry has mastered the production of unified water heating flow of household apparatus, which received the HPV index. Currently, water heaters of this series are produced by plants of gas equipment located in St. Petersburg, Volgograd and Lviv. These are automatic devices and are designed to heal water for the needs of local residential supply of the population and utility consumers. hot water. Water heaters are adapted for successful operation in conditions of simultaneous multipoint water intake.

In the design of the flow water heater, WSV-23-1-3-P, a number of significant changes and additions were made compared with the previously produced Water heater L-3, which allowed, on the one hand, to improve the reliability of the apparatus and ensure the increase in the safety level of its work, in In particular, to solve the issue of turning off the supply of gas to the main burner in the violations of the thrust in the chimney, etc. But, on the other hand, led to a decrease in the reliability of the water heater as a whole and the complication of the process of its service.

The water heater housing purchased a rectangular, not very elegant form. The construction of the heat exchanger is improved, the main burner of the water heater is changed by a radical 11, respectively - the insertion.

A new element has been introduced, earlier in flow water heaters not used - electromagnetic valve (EMK); A thrust sensor is installed under the gas supply device (cap).

As the most common means for rapid reception hot water In the presence of a water supply, many years are used by gas flowable gases produced in accordance with the requirements water heating machinesEquipped with gas feeding devices and burden, which, in the case of a short time, the thrust prevent the flames of the gas-melting device, for attaching to the smoke channel there is a smoking nozzle.

Device apparatus

1. A wall type apparatus has a rectangular shape formed by removable facing.

2. All the main elements are mounted on the frame.

3. On the front of the device there is a gas crane control knob, an electromagnetic valve button (EMK), an observation window, a window for ignition and monitor the flames of the ignition and the main burner and the thrust control window.

· At the top of the device there is a nozzle of the burning of combustion products into the chimney. At the bottom - nozzles for connecting the apparatus to gas and water highways: for gas supply; For the supply of cold water; For removal of hot water.

4. The device consists of a combustion chamber, which includes a frame, a gas feeding device, a heat exchanger, a water-gasorel block consisting of two burners of the fiber and main, tee, gas crane, 12 water regulator, solenoid valve (EMK).

On the left side of the gas part of the water-gas-melting unit, the tee is fastened with a clamping nut, through which the gas enters the ignition burner and, in addition, it is supplied through a special connecting tube under the valve of the thrust sensor; That in turn is attached to the body of the apparatus under the gas travelers (cap). The thrust sensor is an elementary structure, consists of a bimetallic plate and fitting, on which two nuts performing the connecting functions are attached, and the upper nut is simultaneously the saddle for a small valve attached in a suspended state by the end of the bimetallic plate.

The minimum required for the normal operation of the device must be 0.2 mm of water. Art. If the thrust fell below the specified limit, exhaust combustion products, do not have the ability to fully go into the atmosphere through the chimney, begin to enter the kitchen, heating the bimetallic plate of the thrust sensor, located in a narrow passage on their way out from under the cap. The heating bimetallic plate is gradually strung out, since the linear expansion coefficient when the bottom layer of the metal is greater than that of the top, the free end is lifted, the valve departs from the saddle, which entails the depressurization of the tube connecting the tee and the thrust sensor. Due to the fact that the supply of gas to the tee is limited to the area of \u200b\u200bthe passage section in the gas part of the water-gasorette block, which significantly occupies less than the area of \u200b\u200bthe traction sensor valve, the gas pressure in it immediately drops. Flame of the stobnant without receiving sufficient food, falls. Cooling Saving Thermocouples entails a maximum after 60 seconds. Triggering the solenoid valve. Electromagnet, remaining without electric power supply, loses its magnetic properties and release the anchor of the upper valve, without having the strength to keep it in the position attracted to the core. Under the influence of the springs, the plate, equipped with a rubber seal, fits tightly to the saddle, overlapping through the through passage for the gas, previously entering the main and the ostar burner.

Rules for using a flow water heater.

1) Before turning on the water heater, make sure that there is no smell of gas, open the window and release the cut at the bottom of the door to the air inflow.

2) Flame of burning matches check in chimneyIf you have traction, turn on the column according to the instruction manual.

3) 3-5 minutes after the instrument is turned on re-check the presence of thrust.

4) Do not allow Use the water heater to children under 14 years and persons who have not passed a special briefing.

Use gas water heaters only if there is a thrust in the chimney and the ventilation channel, the rules for storing flow water heaters. Filling gas water heaters should be stored in a closed room protected against atmospheric and other harmful effects.

When storing the apparatus for more than 12 months, the latter must be subjected to conservation.

Holes of the input and outlet nozzles must be closed with plugs or traffic jams.

After every 6 months of storage, the device must be subject to technical inspection.

Operation of the device

• Turning on the device 14 To turn on the device, you must: check the presence of thrust, bringing a lit match or strip of paper to the thrust control window; Open a common crane on the gas pipeline in front of the device; Open Crane on water pipe in front of the device; Rotate clockwise the handle of the gas crane until you stop; Press the solenoid valve button and bring a lit match through the viewing window in the veneer of the device. At the same time, the flame of the ignition burner should light up; Release the button of the electromagnetic valve, after turning it on to work (after 10-60 seconds), while the flame of the ignition burner should not go out; Open the gas valve on the main burner, for what to press the gas crane handle in the axial direction and turn it right until it stops.

b with this, the ignition burner continues to burn, but the main thing is not yet ignited; Open the hot water valve, the flame of the main burner should be blocked. Adjusting the heating degree of water is performed by water consumption, or by turning the gaseous crane handle from left to right from 1 to 3 division.

i turn off the device. At the end of using the flow water heater, it must be turned off, following the sequence of operations: Close hot water cranes; Turn the handle of the gas crane counterclockwise until it stops, thereby connecting the gas supply to the main burner, then let go of the handle and without pressing it in the axial direction, turn it counterclockwise until it stops. At the same time, the ignition burner and solenoid valve (EMK) will be turned off; Close the overall crane on the gas pipeline; Close the valve on the plumbing pipe.

b water heater consists of the following parts: Camera combustion; Heat exchanger; Framework; Gas feeding device; Gas melting unit; Main burner; Ignition; Tee; Gas crane; Water regulator; Electromagnetic valve (EMK); Thermocouple; Truck Sensor Tube.

Solenoid valve

In theory, the electromagnetic valve (EMK) should stop supplying the gas to the main burner of the flow water heater: first, when the gas supply is disappeared into the apartment (on the water heater), in order to avoid the bodies of the fire chamber, connecting pipes and chimneys, and secondly, With violation of thrust in chimney (reduce it against the established norm), in order to prevent poisoning carnant gascontained in combustion products, apartment tenants. The first of the mentioned functions in the design of previous models of flow water heaters was imposed on the so-called heat machines, the basis of which was bimetallic plates and valves suspended to them. The design was quite simple and cheap. After a certain time, it was out of order after a year or two and no locksmith or the manufacturer did not even arise the thoughts of the time of time and material to restore. Moreover, experienced and knowledgeable insights at the time of the start of the water heater and the primary testing or the most 16 later at the first visit (preventive maintenance) of the apartment in the full consciousness of their rightness were pressed by the folding packets of the bimetallic plate, thereby ensuring the constant open position for the heat machine valve, and Also a 100% guarantee that the specified element of the security automation will not be disturbed until the end of the expiration date of the water heater nor subscribers nor the service personnel.

However, in the new model of the flow water heater, namely Vig-23-1-3-P, the idea of \u200b\u200bthe "heat machine" was developed and complicated significantly, and that the worst, connected with the thrust control machine, laying on the electromagnetic valve The functions that are certainly necessary, but so far have not received a worthy embodiment in a particular viable design. The hybrid turned out to be not very successful, in the work of a capricious, requiring increased attention from the service personnel, high qualifications and many other circumstances.

The heat exchanger, or the radiator, as it is sometimes called in the practice of gas farms, consists of two main parts: a fire chamber and a carrier.

The fire chamber is designed for burning a gas-air mixture, almost entirely prepared in the burner; Secondary air, providing full combustion of the mixture, is suitable from below, between the burner sections. Cold water pipeline (coach) wraps a fire chamber one full turn And immediately falls into the calorifer. The dimensions of the heat exchanger, mm: height - 225, width - 270 (taking into account the protruding knees) and the depth - 176. The diameter of the coating tube 16 is 18 mm, in the above depth parameter (176 mm) it is not enabled. The heat exchanger is single-row, has four through the revolving passages of the water supply tube and about 60 plates-ryber made of copper sheet and having a wave-like shape of the side profile. To install and 17 centering inside the water heater housing, the heat exchanger has side and rear brackets. The main type of solder, at which the knee assembly of the PFPC-7-3-2 knead is carried out. The replacement of solder on the MF-1 alloy is allowed.

In the process of testing the tightness of the inner water plane, the heat exchanger must withstand the pressure test of 9 kgf / cm 2 for 2 minutes (the flows of water from it is not allowed) or to test the air to the pressure of 1.5 kgf / cm 2, subject to immersion in the bath, filled Water, also within 2 minutes, and the air leakage (the appearance of bubbles in water) is not allowed. The elimination of defects of the heat exchanger of the heat exchanger is not allowed. The cold water serpent is almost all over the entire path to the caloric. It should be taken to the fire chamber by the solder to ensure maximum water heating efficiency. At the outlet of the carrier, the exhaust gases fall into the gas feeding device (cap) of the water heater, where the air is diluted, suitable from the room, to the required temperature and then go into chimney through the connecting pipe, the external diameter of which should be about 138-140 mm. The temperature of the exhaust gases at the outlet of the gas feed device is approximately 210 0 s; The content of carbon monoxide with air flow rate 1 should not exceed 0.1%.

Principle of operation of the device1. The gas on the tube enters the solenoid valve (EMK), the inclusion button is located to the right of the handle of the gas crane.

2. The gas locking valve of the water gas-melting unit performs a sequence of switching on the ignition burner, the supply of gas to the main burner and regulates the amount of incoming gas to the main burner to obtain the desired temperature of the heated water.

On the gas crane there is a handle rotating from left to right with fixation in three positions: the extreme left fixed position corresponds to the closing 18 of the gas supply to the ostar and main burner.

The average fixed position corresponds to the full opening of the crane for gas supply to the ignition burner and the closed position of the crane on the main burner.

The extreme right fixed position achieved by pressure on the handle is mainly directed until it stops, followed by turning to the end to the right, corresponds to the full opening of the crane for the gas supply to the main and the ostar burner.

3. The control of the combustion of the main burner is carried out by turning the handle within the position 2-3. In addition to manual locking of the crane, there are two automatic blocking devices. Blocking gas flow to the main burner with the mandatory operation of the ignition burner is provided by an electromagnetic valve operating from the thermocouple.

Locking gas supply to the burner depending on the presence of water duct through the device is made by the water regulator.

When you press the electromagnetic valve button (EMK) and the open position of the blocking gas tap on the ignition burner, gas through the solenoid valve enters the locking valve and then through a tee on the gas pipeline to the ignition burner.

With a normal pull in the chimney (permafection of at least 1.96 Pa), the thermocouple heated by the flame of the ignition burner transmits the pulse to the valve electromagnet, which in turn automatically holds the valve open and provides gas access to the locking crane.

In case of violation of thrust or its absence, the solenoid valve stops supplying the gas to the machine.

Rules for the installation of a flow gas water heater flowing water heater is installed in a single-storey room with compliance with technical Conditions. The height of the room must be at least 2 m. The volume of the room should be at least 7.5 m3 (if in a separate room). If the water heater is installed in the room together with a 19gham plate, then the volume of the room to install the water heater to the room with the gas stove is unnecessary. In the room where the flowing water heater is set, should be chimney, ventkanal, gap? 0.2 m 2 From the door area, windows with a revealing device, the distance from the wall should be 2 cm for the air layer, the water heater should hang on the wall of the non-burnable material. In the absence of non-burnable walls in the room, it is allowed to install a water heater on an employed wall at a distance of at least 3 cm from the wall. The surface of the wall in this case should be isolated roofing steel on the asbestos sheet with a thickness of 3 mm. The upholstery should be for 10 cm for the water heater body. When installing a water heater on a wall, lined with glazed tiles, no additional isolation is required. The horizontal distance in the light between the protruding parts of the water heater should be at least 10 cm. The room temperature in which the device is installed, should be no lower than 5 0 C. Indoors should be natural lighting.

It is forbidden to install a gas flowing water heater in residential buildings above five floors, in the basement and bathroom.

As a complex household appliance, the column has a set of automatic mechanisms that ensure the safety of operation. Unfortunately, many old models installed in apartments today contain a far from a complete set of security automation. And in a large part, these mechanisms have long failed and have been disabled.

Using columns without security automation, or with automatic disabled, is fraught with a serious threat to the safety of your health and property! Safety systems include. Control of reverse traction. If the chimney is blocked either clogged and combustion products come back to the room, the gas supply must automatically stop. Otherwise, the room will be filled with carbon monoxide.

1) Thermoelectric fuse (thermocouple). If a short-term cessation of gas supply occurred during the operating column (ie, the burner was extinct), and then the feed resumed (went gas with an extinct burner), then its further receipt should be automatically stopped. Otherwise, the room will be filled with gas.

Principle of operation of the water-gas blocking system

The blocking system provides gas supply to the main burner only when the hot water isolate. It consists of a water node and gas nodes.

The water assembly consists of a housing, covers, membranes, plates with stock and venturi fitting. The membrane separates the inner cavity of the water node to the subable and apprailed, which are connected by the bypass channel.

When the water intake is closed, the pressure in both cavities is the same and the membrane occupies the lower position. When opening the water intake, the water flowing through the "Venturi" fitting is injected through the bypass canal water from the above-handed cavity and the water pressure drops in it. The membrane and a plate with a rod rise, the water node rod pushes the gas rod, which opens the gas valve and gas enters the burner. With the cessation of water intake of water pressure in both cavities of the water assembly, the gas valve is alleged under the influence of the conical spring and stops gas access to the main burner.

The principle of operation of automatics to control the presence of a flame on the stall.

Provided by the work of EMK and thermocouples. When weakening or extracting the flame, the spike thermocouple is not heated, the EMF is not thrown away, the electromagnet core is demagned and the spring's spring is closed, overlapping the gas supply to the machine.

Principle of operation of automatics of safety by traction.

§ Automatic shutdown of the device in the absence of thrust in the chimney is provided: 21 thrust sensors (DT) EMK with a thermocouple fiber.

Dt consists of a bracket with a bimetallic plate fixed on it. At the free end of the plate, the valve closes the hole in the sensor fitting is fixed. The DT fitting is attached to the bracket with two lock nuts, with the help of which you can adjust the height of the plane of the outlet of the fitting relative to the bracket, thereby adjusting the valve closing density.

In the absence of thrust in chimney, the flue gases go out under the cap and heated the bimetallic plate of DT, which bends, raises the valve, opening the hole in the fitting. The main part of the gas, which should go to the spinner, goes through the hole in the sensor fitting. The flame on the stall decreases or goes out, heating the thermocouple stops. EMF in the winding of the electromagnet disappears and the valve overlaps the gas supply to the machine. The response time of the automation should not exceed 60 seconds.

WSV-23 safety automation scheme Scheme of automatic safety water heaters with automatic shutdown of gas supply to the main burner in the absence of traction. This automation works on the basis of the EMK-11-15 solenoid valve. The thrust sensor serves a bimetallic plate with a valve that is installed by the water heater area. In the absence of traction, hot combustion products are washed the plate, and it opens the nozzle of the sensor. In this case, the flame of the ignition burner decreases, since the gas rushes the sensor's nozzle. The thermocouple of the EMK-11-15 valve cooles and it overlaps gas access to the burner. The solenoid valve is embedded on gas in front of the gas valve. EMK power supply ensures a chromel-copy thermocouple introduced into the flame zone of the ignition burner. When heating the thermocouple, the excited TADS (up to 25mB) enters the electromagnet core winding, which holds the valve associated with an anchor. The valve opening is manually carried out using the button displayed on the front wall of the device. When popping flames, the unworn 22 electromagnet spring-loaded valve overlaps gas access to burners. Unlike other electromagnetic valves, in the EMK-11-15 valve, thanks to the sequential response of the lower and top valves, it is impossible to turn off the safety automation by consolidating the lever pressed from the work, how the consumers do it. As long as the lower valve does not block the gas pass to the main burner, the flow of gas into the ignition burner is impossible.

For blocking thrust, the same EMK and the effect of the replacement burner are used. The bimetallic sensor placed under the top cap of the device is heating, (in the zone of the reverse flux of hot gases arising from stopping the thrust) opens the gas reset valve from the piping of the ignition burner. The burner goes out, the thermocouple is cooled and the electromagnetic valve (EMK) overlaps gas access to the machine.

Maintenance of the apparatus 1. Observation of the work of the device is assigned to the owner, which is obliged to contain it clean and good condition.

2. To ensure the normal operation of the flow gas water heater at least once a year, a preventive inspection must be carried out.

3. Periodic maintenance of the flow gas water heater is made by employees of the gas management service in accordance with the requirements of operating rules in the gas economy at least 1 year per year.

The main malfunctions of the water heater

	Broken plate water node	Replace plate
	Scope of scale in the calorie	Rinse calorifer
The main burner is lit with cotton	Crane holes crane or nozzles clogged	Clear holes
	Insufficient pressure Gaza	Increase the pressure of Gaza
	Broken tightness of the sensor	Adjust the sensor by pull
When the main burner is turned on, the flame knocks out	Not adjusted by the ignition moderator	Adjust
	Say deposition on the calorie	Clear calorifer
When you turn off the water intake, the main burner continues to burn	Spring Spring Safety Valve	Replace spring
	Security valve seal wear	Replace seal
	Hit foreign languages under the valve	Clear
Insufficient water heating	Small gas pressure	Increase the pressure of Gaza
	Crane or nozzles stopper	Clean the hole
	Say deposition on the calorie	Clear calorifer
	Safety valve rums	Replace
Small water consumption	Water node filter scored	Clear filter
	Water Head Adjustment Screw strongly	Release the adjusting screw
	Wallowed hole in Venturi tube	Clean the hole
	Scope of scale in the serpent	Rinse the coil
When the water heater is working a big noise	Large water consumption	Reduce water consumption
	The presence of burrs in Venturi tube	Remove burrs
	Sale of gaskets in a water node	Purchase correctly
After short work, the water heater is turned off	Lack of traction	Clean the chimney
	Exactly sensor	Adjust the sensor by pull

Disaster electric chain

The causes of the chain disorders are quite a lot, they are usually a consequence of the break (violation of contacts and places of compounds) or, on the contrary, the closure before the electric current produced by the thermocouple falls into the electromagnet coil and thereby ensure the steady attraction of the anchor to the core. Chain breaks, as a rule, are observed in the location of the thermocouple and a special screw terminal, in the place of fastening the core winding to figure or connecting nuts. The circuit of the chain is possible in the thermocouple itself due to the negligent appeal (fractures, bends, blows, etc.) in the service process or due to the failure as a result of an excessive service life. It is often possible to observe in those apartments where the water heater's watelling burner burns all day, and often a day, to avoid the need to ignite it before turning on the water heater to work, which the hostess may be more than a dozen. Circuits of the chain are possible in the electromagnation itself, especially when displaced or disruption of the insulation of a special screw made of washers, tubes and similar insulating materials. Natural will be in order to accelerate repair work Each occupied on their execution, to have a constantly spare thermocouple and electromagnet with you.

The locksmith in search of the cause of the valve failure should first get a clear answer to the question. Who is to blame for the valve failure - thermocouple or magnet? The first is replaced by the thermocouple as the easiest option (and the most common). Then, when negative resultThe same operation is exposed to an electromagnet. If it does not help, then the thermocouple and electromagnet are extracted from the water heater and are checked separately, for example, the thermocouples are heated by the flame of the upper burner gas stove In the kitchen and so on. Thus, the mechanic method of exclusion establishes a defective node, and then it is starting directly to repair or simply replacing it to a new one. Determine the reason for the refusal of the electromagnetic valve in the work, without resorting to a phased study, by replacement, the intended defective nodes on the obviously good, only an experienced, qualified mechanic can only.

Used Books

1) Gas supply and gas supply guide (N.L. Stashevich, Nov. Severinets, D.Ya. Vigdornchik).

2) Handbook of the Young Gasovik (KG Kyazimov).

3) Abstract for special technologies.

Posted on Allbest.ru.

Gas column electron HVV 23 badly ignites.

21 Feb 2013, 09:42

Not a fact may be the case in the weakening of water pressure. This happens completely and next. If the matter is still in the water - you need to put the pump 230V pump on the input column. But before taking any measures, you need to accurately establish what is the reason. It is better to invite a professional gas from service 04 or other similar.

Gas column electron HVV 23 badly ignites.

21 Feb 2013, 09:43

And what the column then HVV 23, never met. Is it a hand-held apparatus? I think the case in the gas opening valve, it happens that it does not work and from here the whole problem is often broken. It is necessary to invite a specialist, he will set exactly in 5 minutes exactly what the reason may eliminate it over the next 15 minutes.

By phone, explain to them with words that does not work. Let the link brings with them.

Gas column electron HVV 23 badly ignites.

06 Mar 2013, 11:45

Do not believe, I also have the same column, but the problem is in the other. A very weak head of hot water, from a cold crane, straight geyser, but hot bastily flows. Pipes are not Soviet, but such as the plastic (I remove this apartment for only 2 years and is not very stripped in Plumbing and TP.
Photos What the column looks like found here

You do not have the necessary rights to view attachments in this message.

Gas column electron HVV 23 badly ignites.

07 Mar 2013, 07:33

The point is most likely in the slaughterhouse of the heat exchanger - it is necessary to clean. The hydrostatic resistance is too large, so water is weakly flowing. Further, this will lead to emergency response and turning off the gas column. Cleaning the TV Climer from scale is not expensive, but the entire replacement flies into a penny.

Gas column electron HVV 23 badly ignites.

07 Mar 2013, 10:10

And how to clean it? or even how it looks

Gas column electron HVV 23 badly ignites.

08 Mar 2013, 08:30

dimikosha wrote (a): And how to clean it? or even how it looks

If yourself, then who does it. First you need to remove it, open the lid, unwind couplings. Remove the heat exchanger and pour acid into it. Someone uses lemon, someone special. The composition of their host. Maga., And someone even Coca-Cola. Then everything is washed with soda solution and mounted back. Should help.

Gas column electron HVV 23 badly ignites.

09 Mar 2013, 19:21

Better service Mena call, he will have everything with him.
If yourself, then who does it. First you need to remove it, open the lid, unwind couplings. Remove the heat exchanger and pour acid into it. Someone uses lemon, someone special. The composition of their host. Maga., And someone even Coca-Cola. Then everything is washed with soda solution and mounted back. Should help.

Thank you, better than a serviceman))

Gas column electron HVV 23 badly ignites.

In accordance with the requirements of regulatory and technical documents operating on the territory of the Russian Federation, maintenance and repair of gas console equipment should be carried out by a specialized organization that has a certificate of admission to this type of work, as well as certified personnel.
Independent manipulations from this type of equipment also contradict common sense!

Conclusion: Invite specialists from the service organization.

Faults column KGI-56

Insufficient water pressure;

The hole in the subable space is clogged - to clean;

The rod moves badly in the gland - to remove the gland and smear the rod.

2. In the cessation of water intake, the main burner does not swing:

A hole in the above space is clogged - to clean;

Under the safety valve fell dirt - clean;

Weakened the small spring - replace;

The rod moves badly in the gland - to remove the gland and smear the rod.

3. The radiator was hammered by the soot:

Adjust burning the main burner, clean the radiator from soot.

HPV-23

In the title of the modern column produced in Russia, the letters are almost always present. HPV:this is a water heating device (c) flowing (P) gas (g). The figure, standing after the letters of the WSV, indicates the thermal power of the device in kilowatts (kW). For example, WSV-23 is a water heating gas flow gas thermal power of 23 kW. Thus, the name of the modern columns does not define their design.

Water heater WSV-23 Created on the basis of WGV-18 water heater, produced in Leningrad. In the future, HPV-23 was manufactured in the 80-90s. A number of enterprises of the USSR, and then the CIS.

HPV-23 has the following specifications:

thermal power - 23 kW;

water consumption when heated at 45 ° C - 6 l / min;

the water pressure is 0.5-6 kgf / cm 2.

HPG-23 consists of a gas feed, radiator (heat exchanger), the main burner, block-crane and solenoid valve (Fig. 23).

Gatheringit serves to feed the combustion products into the smoke line of the speaker.

The heat exchanger is consisting From the carrier and the fire chamber, stuck with cold water coil. The size of the fire chamber HPV-23 is less than that of KGA-56, because the burner HPV provides better stirring of gas with air, and the gas burns out a shorter flame. A significant number of HSV columns has a radiator consisting of one caner trio. The walls of the fire chamber in this case are made of steel sheet, which saves copper.

Main burnerconsists of 13 sections and manifold interconnected with two screws. Sections are collected in a single integer with the help of tie bolts. The collector has 13 nozzles, each of which gives gas to its section.

Fig. 23. WSV-23 column

Block crane consists Of the gas and water units connected by three screws (Fig. 24).

Gas partthe block-crane consists of a housing, a valve, a tapered liner for a gas crane, a crane tube, a gas crane cap. The valve has a rubber seal along the outer diameter. Top on it presses the conical spring. The saddle of the safety valve is performed in the form of a brass liner pressed into the housing of the gas part. The gas crane has a handle with a limiter fixing the opening of the gas supply to the stall. The cork of the crane is held in the housing of the large spring. On the crane tube there is an outlet for gas supply to the stall. When the crane is rotated from the extreme left position at an angle of 40 °, the velocity coincides with the gas supply hole, and the gas begins to enter the stall. In order to supply gas to the main burner, you must click on the handle of the crane and turn on.

Fig. 24. Block-crane HPV-23

Water partconsists of lower and top covers, venturi nozzles, membranes, plates with stock, ignition retarder, rod gland and clamping rod sleeve. The water is supplied to the water part on the left, enters the subable space, creating pressure in it equal to the pressure of water in the water supply. Having created pressure under the membrane, water passes through the nozzle of Venturi and rushes to the radiator. Veenturi nozzle is a brass tube, in the narrower part of which four through holes are made, which come out in the outer circular pump. The outlet coincides with through holes that are available in both water part lids. According to these holes, the pressure from the narrowest part of the nozzle of the venturi is transmitted to the above space. The stock of the plate is compacted with a nut, which squeezes the gland from fluoroplastic.

Works automatics by water fluid in the following way. When water passes through the nozzle of the Venturi in the narrow part of the highest speed of water and, therefore, the smallest pressure. This pressure is transmitted through through holes into the dummy cavity of the water part. As a result, the pressure difference appears under and over the membrane, which is strung up and pushes a plate with a rod. The water part rod, resting in the gas rod of the gas part, raises the safety valve from the saddle. As a result, the gas pass on the main burner opens. When the flow of water is stopped, the pressure under and over the membrane is aligned. The cone spring presses and the safety valve and presses it to the saddle, the gas supply to the main burner is stopped.

Solenoid valve(Fig. 25) serves to turn off the gas supply during the swelling of the fist.

Fig. 25. Electromagnetic VVP-23 valve

When you press the electromagnetic valve button, its rod rests on the valve and moves it from the saddle, while squeezing the spring. At the same time, anchor presses against the electromagnet core. The gas begins to flow into the gas part of the block-crane. After the ignition of the repliment, the flame begins to heat the thermocouple, the end of which is installed in a strictly defined position relative to the stober (Fig. 26).

Fig. 26. Installation of the stobnant and thermocouples

The thermocouple that occurred when thermocouples is heated to wind the electromagnet core. The core begins to hold the anchor, and with it and the valve, in the open position. Solenoid valve response time - about 60 seconds. With the swelling, the stamp of the thermocouple cools and ceases to produce the voltage. The core no longer holds the anchor, under the action of the spring the valve closes. The supply of gas and the stall, and the main burner is stopped.

Automation by craftturns off the gas supply to the main burner and the stall when the thrust is violated in the chimney. It works on the principle of "gas removal from the stobble".

Fig. 27. Sensor traction

The automation of a tee, which is attached to the gas part of the block-crane, tube to the thrust sensor and the sensor itself. Gas from the tee is served to the stober, and to the thrust sensor installed under the gas travelers. The thrust sensor (Fig. 27) consists of a bimetallic plate and fitting, reinforced with two nuts. The upper nut at the same time is a saddle for a plug, overlapping the outlet from the fitting. A tube supplying gas from a tee is attached to the fittings of the cape nut.

With normal thrust, combustion products go into the chimney, without falling on the bimetallic plate. The plug is tightly pressed to the saddle, the gas from the sensor does not exit. With violation of thrust in chimney, combustion products are heated by a bimetallic plate. It is strung up and opens the gas outlet out of the fitting. The gas supply to the stall decreases sharply, the flame stops normally heat the thermocouple. It cools and ceases to produce tension. As a result, the electromagnetic valve closes.

Fault

1. The main burner lights up:

Insufficient water pressure;

Deformation or plowing membranes - replace the membrane;

Venturi nozzle is clogged - clean;

The rod from the plate was taken away - replace the rod with a plate;

Skale of the gas unit with respect to water - align with three screws;

2. In the cessation of the water intake, the main burner does not swing:

Under the safety valve fell dirt - clean;

Weakened the cone spring - replace;

The rod moves badly in the gland - lubricate the rod and check the nuts tight.

3. In the presence of Flame Filter The solenoid valve is not held in the open position:

a) electric violation Chains between the thermocouple and electromagnet - a break or short circuit. Maybe:

Lack of contact between thermocouples and electromagnet terminals;

Violation of the thermocouple copper wire insulation and a short circuit of it with a tube;

Violation of the insulation of turns of the coil of an electromagnet, closing them between themselves or on the core;

Violation of the magnetic chain between the anchor and the core of the electromagnet coil due to oxidation, dirt, fatty film, etc. It is necessary to clean the surface with a flap of coarse tissue. It is not allowed to stripping surfaces with appliances, emery paper, etc.;

b) insufficient heating Thermocouples:

The working end of the thermocouple jumped up;

The nozzle is clogged;

Incorrectly installed thermocouple relative to the stobble.

Column Fast.

Fasting Water heaters FAST have an open combustion chamber, combustion products from them are removed due to natural traction. The FAST-11 columns CFR and FAST-11 CFE are heated 11 liters of hot water per minute when water heated by 25 ° C

(Δt \u003d 25 ° С), Columns FAST-14 CF P and FAST-14 CF E - 14 l / min.

Flame control by FAST-11 CF P (FAST-14 CF P) produces thermocouple, on columns FAST-11 CF E (FAST-14 CF E) - ionization sensor. Speakers with ionization sensor have an electronic control unit to which the power supply is required - the battery at 1.5 V. The minimum water pressure, in which the burner is ignited, is 0.2 bar (0.2 kgf / cm 2).

Fast CF water heater diagram (i.e., with ionization sensor) is presented in Fig. 28. The column consists of the following nodes:

Gas feeder (traction diverter);

Heat exchanger;

Burner;

Control block;

Gas valve;

Water valve.

The gas trap is made of leaf aluminum with a thickness of 0.8 mm. Diameter of the chimney FAST-11 -110 mm, FAST-14-110 mm, FAST-14-125 mm (or 130 mm). A traction sensor is installed on the gas supply 1 . The heat exchanger of the water heater is made of copper on the technology of "cooling water of the combustion chamber". The copper tube has a wall thickness of 0.75 mm, the inner diameter is 13 mm. The FAST-11 model burner has 13 nozzles, FAST-14-16 nozzles. The nozzles are pressed into the collector, when moving from natural gas to liquefied or on the contrary, the collector is replaced entirely. The ionization electrode is fixed on the burner 4, electrode ignition 2 and faint 3.

Fig. 28. Fast CFE Water Heater Scheme

Electronic control unit Feed from the battery with a voltage of 1.5 V. The electrodes of ionization and ignition are connected to it, the thrust sensor, the on / off button 5, microswitch 6, and the main solenoid valve 7 and the solenoid valve of the stobnant 8. Both electromagnetic valves are included in the gas valve, in which the membrane also has 9, primary valve 10 and conical valve 11. In the gas valve there is a device for adjusting gas supply to the burner (12). The user can adjust the gas supply from 40 to 100% of the possible value.

In the water valve there is a membrane with a plate 13 and Venturi tube 14. Using water temperature regulator 15 the consumer can change the duct of water through the water heater from the minimum (2-5 l / min) to the maximum (11 l / min or 14 l / min, respectively). In the water valve there is a main regulator 16 and additional regulator 17, as well as a channel regulator 18. To ensure the pressure drop on the membrane, serves a vacuum tube 19.

Fast CF models modes are automatic, after pressing the button " on off" 5 Further turning on and off is made by a crane of a hot water parsing. With water dummy through a water valve more than 2.5 l / min membrane with a plate 13 shifts and turns on the microswitch 6, and also opens a conical valve 11. Primary valve 10 before turning on, closed, as the pressure over the membrane 9 and the same one. The above-handed and subable space are connected to each other through normally open main solenoid valve 7. After switching on the electronic control unit supplies sparks to the electrode of the ignition 2 and the voltage to the solenoid valve of the stamp 8, which was closed. If after ignite 3 ionization electrode 4 registers the flame, then power is supplied to the main electromagnetic valve 10 and it closes.Gas from the membrane 9 goes to the stall. Pressure under the membrane 9 decreases it moves and opens the main valve 10. Gas goes on the burner, it is lit. Filter 3 fit, the supply of the fader valve is turned off. If the burner is walked through the ionization electrode 4 clean the current will stop. The control unit will turn off the power of the main solenoid valve 7. It will open, pressure under and over the membrane is leveled, the main valve 10 close. Changing the power of the burner is automatically and depends on the water consumption. Conical valve 11 due to its form, it provides a smooth change in the amount of gas supplied to the burner.

Water valve is running in the following way. With a membrane water dial with a plate 13 deviates due to changes in pressure under and over the membrane. The process occurs due to the Venturi tube 14. With the dump of water in the narrowing of the tube of the Venturi, the pressure decreases. Through a vacuum tube 19 the reduced pressure is transmitted to the abandonment space. Main regulator 16 connected to membrane 13. It moves depending on the water duct, as well as the position of the additional regulator 1 7. The water duct is completed through the Venturi tube and an open temperature regulator 15. Temperature regulator 15 the consumer can change the duct of water, which allows the supply of a part of the water to bypass the Venturi tube. The more water passes through the temperature regulator 15, the lower its temperature at the outlet of the water heater.

Gas feed adjustment On the burner, depending on the water duct, the water occurs as follows. With an increase in the duct of the membrane with a plate 13 deviates. The main regulator is rejected with it 16, the flow of water is reduced, i.e., water duct depends on the position of the membrane. At the same time, the position of the conical valve 11 in the gas valve also depends on the movement of the membrane with a plate 13.

When closing a hot crane water pressure on both sides of the membrane with a plate 13 aligns. Spring closes the conical valve 11.

Sensor traction 1 installed On the gas feed. If the thrust is violated, it is heated by combustion products, the contact is in case of time. As a result, the control unit is disconnected from the battery, the water heater is turned off.

Questions for repetition

1. What is the nominal pressure of SUG for household plates?

2. What needs to be done to translate the plates from one gas to another?

3. How is the plates crane arranged?

4. How does the stove burner housing?

5. Describe the main faults of the plates.

6. Explain the sequence of actions during the ignition of the burner plate.

7. What are the main nodes of the column?

8. What controls the security of the column security?

9. How is the gas part of the KGI-56 arranged?

10. How does KGG-56 block-56 work?

11. How is the water part of the HDV-23?

12. Where is the nozzle of Venturi in WSG-23?

13. Describe the work of the WGV-23 water part.

14. How is the electromagnetic VVP-23 valve arranged?

15. How does the automation work on the HPG-23?

16. For what reason may not light up the main burner of HPV-23?

17. What is minimum pressure Water for work column FAST?

18. What is the supply voltage of the FAST column?

19. Describe the FAST gas valve device.

20. Describe the FAST column.

Gas flowing water heaters

The main nodes of the flow water heater (Fig. 12.3) are: a gas-melting device, heat exchanger, automation system and a gas feed.

Gas low pressure Served in the injection burner 8 . Combustion products pass through the heat exchanger and are discharged into the chimney. The heat of combustion products is transmitted through water flowing through the heat exchanger. For cooling the fire chamber serves as a coil 10 Through which the water passing through the calorifer circulates.

Gas flowing water heaters are equipped with gas feeding devices and burden, which in case of short-term violation of the thrust prevent flame extras

gas Melting Device. For attachment to chimney there is a smoke line.

Flowing water heating devices are designed to obtain hot water where there is no possibility to provide it in a centralized order (from boiler room or heat center), and refer to devices immediate action.

Fig. 12.3. Concept of flow water heater:

1 – reflector; 2 – top cap; 3 – lower cap; 4 – heater; 5 – scum; 6 – casing; 7 – block crane; 8 – burner; 9 – fire chamber; 10 – coil

The devices are equipped with gas feeding devices and burden, which prevent the population of the flame of the gas melting device in the case of a short-term disorder. For jointing to the smoke channel there is a chimney.

On the nominal heat load, the devices are divided:

With a nominal thermal load of 20934 W;

With a nominal thermal load of 29075 W.

Domestic industry serially produces apparatus water heating flow gas household HPV 20-1-3-P and WSG-23-1-3-P. Technical specifications The specified water heater is given in Table. 12.2. Today, new types of water heater are being developed, but their design is close to now in force.

All the main elements of the apparatus are mounted in an enameled rectangular casing.

The front and side walls of the casing are removable, which creates a convenient and easy access to the internal nodes of the device for preventive inspections and repairs without removing the machine from the wall.

Used water heating gases such as WSV type design, which is presented in Fig. 12.4.

On the front wall of the apparatus, the gas crane control knob is located, the electromagnetic valve turning button and the observation window for monitoring the flames of the fastener and the main burner. The device is placed on top of the device, an employee for removal into the chimney of combustion products, from the bottom - nozzles for connecting the device to gas and water networks.

The device has the following nodes: gas pipeline 1 , locking faucet gas 2 , Fast burner 3 , Burner Basic 4 Cold Water Pipe 5 , Block water gas with a tee burner 6 , heat exchanger 7 , Automatic security device in charge with solenoid valve 8 , traction sensor 9 , hot water nozzle 11 and gas feeding device 12 .

The principle of operation of the device is next. Gas by trumpet 1 Enters the solenoid valve, the inclusion button is located to the right of the gas crane handle. The gas locking valve of the water-melting unit carries out a forced sequence of incorporating the ignition burner and the supply of gas to the main burner. The gas valve is equipped with one handle rotating from left to right with fixation in three positions. The extreme left position corresponds to the closing of gas supply to the ostar and main burner. The average fixed position (the rotation of the knob to the right to the stop) corresponds to the full opening of the crane for the gas supply to the ostar burner when the crane is closed on the main burner. The third fixed position achieved by pressure on the crane handle in the OSE direction until it stops, followed by turning to the end to the right, corresponds to the full opening of the crane for the gas supply to the main and the ostar burner. In addition to manual locking of the crane, there are two automatic locking devices on the gas to the main burner. Blocking gas receipt to the main burner 4 With mandatory operation of the ignition burner 3 Provided by an electromagnetic valve.

Blocking gas supply to the burner Based on the presence of water duct through the device is performed by a valve having a drive through a rod from the membrane located in the water-gasorem block. When the valve electromagnet button is pressed and the open position of the locking gas crane on the power burner, the gas through the solenoid valve enters the locking tap and then across the tee on the gas pipeline to the ignition burner. With a normal thrust in the chimney (the vacuum is at least 2.0 pa). The thermocouple heated by the flame of the ignition burner transmits the pulse to the electromagnetic valve, which automatically opens the gas access to the locking crane. In case of violation of the thrust or its absence, the bimetallic plate of the thrust sensor is heated by exhausting gas combustion products, opens the nozzle of the thrust sensor, and the gas entering during the normal operation of the device to the ostar burner, goes through the snot of the thrust sensor. The flame of the ignition burner goes out, the thermocouple is cooled, and the solenoid valve is turned off (for 60 s), i.e. stops supplying the gas to the machine. To ensure a smooth ignition of the main burner, a ignition moderator is provided, working when measuring water from a grambral cavity as check valve, Partially overlapping the valve cross section and thereby slowing the movement of the membrane, and, consequently, the ignition of the main burner.

Table 12.2.

Technical characteristics of flow gas water heater

Characteristic	Brand water heater
WSG-T-3-P I	VVG-20-1-3-P I	HPV-231	HPV-25-1-3-in
Thermal power of the main burner, kW	20,93	23,26	23,26	29,075
Nominal gas consumption, m 3 / h: natural liquefied	2,34-1,81 0,87-0,67	2,58-2,12 0,96-0,78	2,94 0,87	no more than 2.94 not more than 1.19

Water consumption when heated 45 ° C, l / min, not less	5,4	6,1	7,0	7,6
Water pressure in front of the device, MPa: the minimum nominal maximum	0,049 0,150 0,590	0,049 0,150 0,590	0,060 0,150 0,600	0,049 0,150 0,590
Discharge in chimney for normal operation of the device
Dimensions of the device М: height width depth
Mass of the apparatus͵ kg, not more			15,5

To the highest class apply the device Water heating flow WSV-25-1-3-V (Table 12.2). All processes it controls automatically. It provides: gas access to the ignition burner only if there is flames and water duct on it; termination of gas supply to the main and the ignition burners in the absence of discharge in the chimney; regulation of pressure (consumption) of gas; regulation of water flow; Automatic ignition of the ignition burner. While the capacitive water heaters of AGB-80 are still widely used (Fig. 12.5) consisting of tanks from sheet steel, burners with a stall and automatic devices (electromagnetic valve with thermocouple and thermostat). In the top of the water heater, a thermometer is installed to monitor the water temperature.

Fig. 12.5. Auto gas water heater AGB-80.

1 – bruiller; 2 – thermometer coupling; 3 – block automatics in charge;

4 – stabilizer; 5 – filter; 6 – magnetic valve; 7– - thermostat; 8 – gas crane; 9 – the burner is the fastener; 10 – thermocouple; 11 – damper; 12 – diffuser; 13 – burner basic; 14 – cold water fitting; 15 – tank; 16 – thermal insulation;

17 – casing; 18 – nozzle; for the exit of hot water to the apartment wiring;

19 – safety valve

Sole element is an electromagnetic valve 6 . Gas, entering the valve body from the gas pipeline through the crane 8 Ignoring the stall 9 , heats the thermocouple and enters the main burner 13 where gas is lit from the stobble.

Table 12.3.

Technical characteristics of gas water heater

with water contour

Characteristic	Brand water heater
AOGV-6-3-U	AOGV-10-3-U	AOGV-20-3-U	AOGV-20-1-U
Dimensions, mm: diameter height width depth	– –	– –	–	– –
The area of \u200b\u200bheated premises, m 2, no more				80–150
Nominal thermal power of the main burner, W
Nominal thermal power of the ignition burner, W
Water temperature at the exit from the device ° ° С	50–90	50–90	50–90	50–90
Minimum discharge in chimney, Pa
The temperature of combustion products at the exit from the device ° C, not less
Connecting pipe thread of fittings, inches: for supplying and removing water to supply gas	1 ½ 1 ½	1 ½ 1 ½	¾	¾
Efficiency,%, not less

Automatic gas water heater AGB-120 is designed for local hot water supply and premises heating with an area of \u200b\u200bup to 100 m 2. The water heater is a vertical cylindrical reservoir with a capacity of 120 l, enclosed in a steel casing. In the furnace unit installed a cast-iron injection gas burner of a low pressure, to which the bracket is fixed with the stall. The combustion of gas and maintaining the determination of water temperature is automatically adjustable.

The automatic control circuit is two-position. The main elements of the control and safety automation block are a bellix thermostat, a stall, a thermocouple and solenoid valve.

Water heaters with water circuit of the AOGV type operate on natural gas, propane, butane and mixtures thereof.

Fig. 12.6. Apparatus of heating gas AOGV-15-1-y:

1 - thermostat; 2 - traction sensor; 3 - lock-regulating crane;

4 - valve-cutter; 5 - fitting of the ignition burner; 6 - filter;

7 - thermometer; 8 - straight (hot) water pipe fitting; 9 - connecting tube (total); 10 - tee; 11 - connecting tube of the thrust sensor; 12 - pulse piping of the ignition burner; 13 - safety valve; 14 - the connecting tube of the flame population sensor; 15 - fastening bolt; 16 - asbestos gasket; 17 - cladding; 18 - flame population sensor; 19 - collector; 20 - gas pipeline

AOGV type apparatus, in contrast to capacitive water heater, apply only for heating.

The AOGV-15-1-U device (Fig. 12.6), made in the form of a rectangular couch with a white enamel coating, consists of a heat exchanger boiler, smoking a pipe with an adjusting flap as a stabilizer of thrust, casing, a gas-melting device and an automatic control and safety unit.

Gas from filter 6 enters the valve-cutter 4 From which there are three outputs:

1) the main - on the shut-off-regulating crane 3 ;

2) to the stacker 5 top cover for gas supply to the ostar burner;

3) to the fitting of the bottom cover for supplying gas to the traction sensors 2 and popping flames 18 ;

Through the shut-off-regulating crane gas enters the thermostat 1 Both gas pipelines 20 in the collector 19 From where, through two nozzles, it is fed into the confusion of burner nozzles, where it is mixed with the primary air, and then heads into the heat-intensity.

Fig. 12.7. Burners vertical ( but) and adjustable with horizontal

tubular mixer. b.):

1 - cap; 2 - fire nozzles; 3 - diffuser; 4 - Sewber; 5 - nipple nozzle;

6 - housing nozzles; 7 - threaded sleeve; 8 - tube mixer; 9 - Mouthtuck mixer

Gas flowing water heaters are concepts and types. Classification and features of the category "Gas flow water heaters" 2017, 2018.

The main nodes of the flow water heater (Fig. 12.3) are: a gas-melting device, heat exchanger, automation system and a gas feed.

Low pressure gas is supplied to the injection burner 8 . Combustion products pass through the heat exchanger and are discharged into the chimney. The heat of combustion products is transmitted through water flowing through the heat exchanger. For cooling the fire chamber serves as a coil 10 Through which the water passing through the calorifer circulates.

Gas flowing water heaters are equipped with gas feeding devices and burden, which in case of short-term violation of the thrust prevent flame extras

gas Melting Device. To join the chimney there is a smoking nozzle.

Fig. 12.3. Concept of flow water heater:

1 – reflector; 2 – top cap; 3 – lower cap; 4 – heater; 5 – scum; 6 – casing; 7 – block crane; 8 – burner; 9 – fire chamber; 10 – coil

The devices are equipped with gas feeding devices and burden, which prevent the population of the flame of the gas melting device in the case of a short-term disorder. To join the smoke channel there is a smoke line.

On the nominal heat load, the devices are divided:

With a nominal thermal load of 20934 W;

With a nominal thermal load of 29075 W.

Domestic industry serially produces apparatus water heating flow gas household HPV 20-1-3-P and WSG-23-1-3-P. The technical characteristics of the specified water heaters is given in Table. 12.2. Currently, new types of water heaters are being developed, but their design is close to now.

All the main elements of the apparatus are mounted in an enameled rectangular casing.

Used water heating gases such as WSV type design, which is presented in Fig. 12.4.

On the front wall of the apparatus, the gas crane control knob is located, the electromagnetic valve turning button and the observation window for monitoring the flames of the fastener and the main burner. The device is placed on the apparatus, which serves for removal in the chimney of combustion products, from below - nozzles for connecting the device to gas and water networks.

Did you like the article? Share it

Print article

WGV water heater 23 Features of operation Repair. Apparatus Water Performance Flowing Household Gas

Send your good work in the knowledge base is simple. Use the form below

Similar documents

Gas column electron HVV 23 badly ignites.

Gas column electron HVV 23 badly ignites.

Gas column electron HVV 23 badly ignites.

Gas column electron HVV 23 badly ignites.

Gas column electron HVV 23 badly ignites.

Gas column electron HVV 23 badly ignites.

Gas column electron HVV 23 badly ignites.

Gas column electron HVV 23 badly ignites.