RU105721U1 - Autonomous water heating system for use in the system of consumption, previously heating and / or hot water supply - Google Patents

Autonomous water heating system for use in the system of consumption, previously heating and / or hot water supply Download PDF

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Publication number
RU105721U1
RU105721U1 RU2011103884/03U RU2011103884U RU105721U1 RU 105721 U1 RU105721 U1 RU 105721U1 RU 2011103884/03 U RU2011103884/03 U RU 2011103884/03U RU 2011103884 U RU2011103884 U RU 2011103884U RU 105721 U1 RU105721 U1 RU 105721U1
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Russia
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water
heating
pipe
steam
heat
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RU2011103884/03U
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Russian (ru)
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Виктор Сергеевич Гевод
Георгий Сергеевич Белименко
Сергей Сергеевич Белименко
Владимир Георгиевич Долматов
Original Assignee
Виктор Сергеевич Гевод
Георгий Сергеевич Белименко
Сергей Сергеевич Белименко
Владимир Георгиевич Долматов
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Priority to UAU201012015 priority Critical
Priority to UAU201012015U priority patent/UA58080U/en
Application filed by Виктор Сергеевич Гевод, Георгий Сергеевич Белименко, Сергей Сергеевич Белименко, Владимир Георгиевич Долматов filed Critical Виктор Сергеевич Гевод
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Publication of RU105721U1 publication Critical patent/RU105721U1/en

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Abstract

 1. Autonomous water heating system for use in the consumption system, mainly heating and / or hot water supply, containing coolant circuits connected to the circuit (1), having “direct” (2) and “return” (3) pipelines (2, 3) respectively, direct and reverse supply of the coolant, a heat accumulator (4), made with a heat storage body (TAT) (5), enclosed in a heat-insulating shell (6) and a housing (7) and equipped with heaters (8), a consumption system (9), predominantly heating and / or hot water , a circulation pump (10) and an expansion tank (11), characterized in that it is equipped with a hydraulically open heat exchanger-condenser (12), which is integrated in the main circuit of the coolant circulation circuit (1) and is connected to the “return” pipe (3) at one end in the area behind the sequentially located circulation pump (10) and throttle (13), and the other end is connected to the “direct” pipe (2) in the area before the outlet (14) to the expansion tank (11), and the heat accumulator (4) is made in the form of a water heater-steam generator (15), equipped heated by heaters (8) and having a cavity (16) inside for heating water and generating steam, into which (16) an inlet pipe (17) is introduced for supplying water for heating and generating steam, and an outlet pipe (18) for draining heated water and steam, while the inlet pipe (17) of the water heater-steam generator (15) is inserted at one end into the cavity (16) for heating water and generating steam, and at the other end is connected to the “return” pipe (3) in the area between the circulation pump (10) ) and the first choke (13), and the outlet pipe (18) for water heating

Description

The utility model relates to autonomous systems for consuming heated water, mainly in central heating and / or hot water systems using heat accumulators that store heat in heat-intensive masses.
The prior art autonomous water heating systems for use in the consumption system, mainly heating and / or hot water supply (hereinafter referred to as water heating systems or systems), which have found application in the art, are known.
A known water heating system comprising a furnace boiler with a chimney, an expansion tank, heating devices installed in heated rooms, as well as a supply and return line. The system further comprises a heat pump, which consists of adsorber pipelines connected to each other with a heat exchanger to remove adsorption heat, a condenser, a receiver with a shut-off valve, an evaporator and a heat accumulator, the adsorber being located in the boiler chimney after the heating surface, and the condenser and evaporator in the battery volume heat [“Autonomous water defroster alarm system” UA 32681 (A) (Institute of Technical Thermophysics of the National Academy of Sciences of Ukraine) F24D 3/00; 02/15/2001; analogue] [1].
A disadvantage of the known system [1] is the high fuel consumption, which increases the cost of heating water.
A water heating system is also known, comprising a boiler, connected by a supply line to heating devices connected to a return line, in which means for regulating the flow of coolant are installed, and equipped with a device for forced circulation of the coolant, which is connected by a pressure pipe to the return line and an additional pipe with a shut-off valve - feed line. Adaptation of the forced circulation of the coolant is made in the form of a siphon, while the means for regulating the flow of coolant is made in the form of two check valves located on both sides of the connection point of the discharge pipe with the return line with the possibility of alternately transferring the coolant into the boiler and the vapor cavity [“One-circuit small-opal system that middle burden »UA 42849 (U) (Donetsk National Technical University) F24D 11/00; F24D 3/00; 09/27/2009; analogue] [2].
A disadvantage of the known system [2] is the lack of a heat accumulator, which reduces the efficiency of water heating.
A water heating system is also known, containing a heater hydraulically connected to the water circuit, heating elements in heated rooms hydraulically connected to the circulation circuit, an expansion tank in communication with the circulation circuit. The heater contains a steam generator located in the lower part of the circulation circuit and communicated with it through the water flow rate adjuster, and the steam generator output is connected to the steam insulator by a heat-insulated steam pipe installed in series with the upper part of the circulation circuit of the vapor-liquid ejector pump-condenser [“Water heating system” RU 2226653 (C2) (Limited liability company "Scientific and Production Firm" TGM ") F24D 3/02; 04/10/2004; analogue] [3].
A disadvantage of the known system [3] is the high fuel consumption and the absence of a heat accumulator, which increases the cost of heating water.
A water heating system is also known, containing a coolant circulating with a coolant circulation circuit having “direct” and “return” pipelines, respectively, direct and reverse supply of a coolant, a heat accumulator made with a heat storage body (TAT) enclosed in a heat-insulating shell and body and equipped with heaters , steam condenser, consumption system, mainly heating and / or hot water supply and circulation pumps ["Pipe apparatus in heat accumulator" WO 9005271 (Al) (JAKOSSON LEIF) (SE) F24D 11/00; F24H 7/04; 05/17/1990; analogue] [4].
A disadvantage of the known system [4] is its complexity and insufficient efficiency of heat transfer processes in the vapor condenser between the liquid heat carrier (water) of the circulation circuit and the steam generated by the heat accumulator, which increases the cost of heating water.
The water heating system closest in purpose, number of common features and the achieved result is also known. It contains a heating medium connected to a coolant circulation circuit having “direct” and “return” pipelines, respectively, direct and return coolant supply, a heat accumulator made with a heat storage body (TAT ), enclosed in a heat-insulating shell and casing and equipped with heaters, a consumption system, mainly heating and / or hot water supply, a circulation pump and expand Yelnia tank [ "Installation de chauffage central à eau chaude et precédé pour sa mise en oeuvre" FR 1429176 (A) (WITTE HEIZTECHNIK GMBH & CO) F24D 12/02; F24D 12/00; 02/18/1966; the closest analogue prototype] [5].
A disadvantage of the known system [5] is its complexity and insufficient efficiency of heat exchange processes between the liquid heat carrier (water) of the circulation circuit and the steam generated by the heat accumulator, which consists mainly in convective heat exchange with heat transfer through the walls of the pipelines through which they circulate, which increases the cost of heating water.
The objective the utility model is aimed at improving the design of the water heating system by introducing into its composition means ensuring both convective heat transfer through the walls of the pipelines and direct exchange between the heat carrier (water) and the heating medium (heated water or condensed water from steam ) in the process of mixing and occurring heat and mass transfer processes.
The technical result that is achieved when solving the problem and using an improved water heating system is to increase the efficiency of heat transfer processes between the heat carrier (water) and the heating medium (heated water or condensed water from steam), which reduces the cost of heating water.
The problem is solved, and the technical result is achieved by the fact that in an autonomous water heating system for use in a consumption system, mainly heating and / or hot water supply, containing communicating with the coolant circulation circuit having “direct” and “return” pipelines, respectively, direct and return flow of the heat carrier, a heat accumulator made with a heat storage body (TAT), enclosed in a heat-insulating shell and body and equipped with heaters, a consumption system, pre mainly heating and / or hot water supply, the circulation pump and the expansion tank, according to the utility model, it is equipped with a hydraulically open heat exchanger-condenser, which is integrated in the main circuit of the coolant circuit and at one end is connected to the “return” pipe in the area behind the sequentially located circulation pump and a throttle, and the other end is connected to a “direct” pipeline in the area before discharge to the expansion tank, and the heat accumulator is made in the form of a water heater I-steam generator, equipped with heaters and having a cavity inside for heating water and generating steam, into which an inlet pipe for supplying water for heating and steam generation and an outlet pipe for removing heated water and steam obtained are introduced, while the inlet pipe of the water heater-steam generator is one end introduced into the cavity for heating water and generating steam, and the other end is connected to the "return" pipe in the area between the circulation pump and the first choke, and the outlet pipe of the water heater the generator is inserted at one end into a cavity for heating water and generating steam so that its end is at a distance (S 1 ) from the bottom wall of the internal cavity for heating water and generating steam, and at the other end is inserted into a heat exchanger-condenser with an annular gap (S 2 ), intended for circulation and heating of water, so that its end face is at a distance (S 3 ) from the bottom wall of the heat exchanger-condenser.
The mentioned main differences of the improved water heating system due to the installation of a hydraulically open heat exchanger-condenser, which is built into the main circuit of the coolant circuit, as well as the implementation of a heat accumulator in the form of a water heater-steam generator, equipped with heaters and having a cavity inside for heating water and generating steam inside which an inlet pipe has been introduced for supplying water from the “return” pipeline for heating and steam generation, and an outlet pipe for removing heated Odes and the resulting steam into a hydraulically open heat exchanger-condenser provide both convective heat exchange inside the heat exchanger-condenser through the walls of the end of the outlet pipe of the water heater-steam generator introduced into it and direct heat exchange between the heat carrier (water) and the heated medium (water or steam) in the process of mixing and ongoing heat and mass transfer processes.
Due to this, the efficiency of heat transfer processes between the heat carrier (water) and the heating medium (heated water or condensed water from steam) is increased, which reduces the cost of heating water.
An improved water heating system has additional differences that are used in various modifications of the system and create an additional technical result.
In an autonomous water heating system for use in a consumption system, mainly heating and / or hot water supply, according to a utility model, the “return” pipeline is made with two parallel first and second pipelines of the bypass branch of different hydraulic resistance, of which in the first pipe of the bypass branch with a smaller hydraulic resistance, the first solenoid valve is installed, and in the second pipeline of the bypass branch with high hydraulic resistance, adjustable valve with adjustable flow area and a second electrovalve.
The implementation of the bypass branch with lines of different hydraulic resistance provides the possibility of selective circulation of the coolant through the pipeline with less or greater hydraulic resistance and flow rate of the coolant, as a result of which it is possible to quickly control the heating temperature of the coolant in the water heater-steam generator and bring it to the optimum heating temperature provided in consumption system.
In an autonomous water heating system for use in a consumption system, mainly heating and / or hot water supply, according to a utility model, the water heater / steam generator is equipped with a first temperature sensor, which is electrically connected to the first and second electrovalves of the first and second pipelines of the bypass branch of different hydraulic resistance for selective on and off, depending on the temperature in the water heater-steam generator, and the heat exchanger-condenser is equipped with a second temperature sensor , which is electrically connected to the first temperature sensor on the water heater-steam generator and together with it provides control signals to the first and second electrovalves when the temperature of the coolant at the outlet of the heat exchanger-condenser deviates from a given value.
The installation of the aforementioned first and second temperature sensors on, respectively, a water heater-steam generator and on a heat exchanger-condenser and their electrical connection with each other and with the first and second electrovalves of pipelines of smaller and higher hydraulic resistance of the bypass branch, provides control of the heating medium temperature in the water heater-steam generator and bringing it to the optimum heating temperature provided for in the consumption system.
In an autonomous water heating system for use in a consumption system, mainly heating and / or hot water, according to a utility model, the bypass branch of the “return” return pipe of the coolant is equipped with a drain pipe with a shut-off valve.
This ensures that the system is filled with coolant (water), as well as its functioning and emptying during maintenance and operation.
In the future, the utility model is illustrated by a drawing, which shows a diagram of a water heating system for use in a consumption system, mainly heating and / or hot water, and information that confirms the possibility of its implementation with reference to the attached drawing.
An autonomous water heating system for use in a consumption system, mainly heating and / or hot water supply (see drawing), contains coolant circuits connected with circuit 1, having “direct” 2 and “reverse” 3 pipelines 2, 3, respectively, direct and reverse supply heat carrier, heat accumulator 4, made with a heat storage body (TAT) 5, enclosed in a heat-insulating shell 6 and a housing 7 and equipped with heaters 8, a consumption system 9, mainly heating and / or hot water supply, qi kulyatsionny pump 10 and the expansion tank 11.
A feature of the water heating system are the following improvements to its design.
The water heating system is equipped with a hydraulically open heat exchanger-condenser 12, which is built into the main circuit of the coolant circulation circuit 1 and is connected at one end to the “return” pipe 3 in the section behind the sequentially located circulation pump 10 and throttle 13, and the other end is connected to the “direct” pipe 2 on the site in front of branch 14 to the expansion tank 11.
The heat accumulator 4 is made in the form of a water heater-steam generator 15, equipped with heaters 8 and having a cavity 16 inside for heating water and generating steam, into which (16) an inlet pipe 17 is introduced for supplying water for heating and generating steam, and an outlet pipe 18 for removal heated water and steam obtained.
The inlet pipe 17 of the water heater-steam generator 15 is inserted at one end into the cavity 16 for heating water and generating steam, and at the other end is connected to the “return” pipe 3 in the area between the circulation pump 10 and the first inductor 13.
The outlet pipe 18 of the water heater-steam generator 15 is inserted at one end into a cavity 16 for heating water and generating steam so that its end face is at a distance (S 1 ) from the lower wall of the inner cavity 16 for heating water and generating steam, and is inserted into the heat exchanger at the other end -condenser 12 with an annular gap (S 2 ) intended for circulation and heating of water, so that its end face is at a distance (S 3 ) from the bottom wall of the heat exchanger-condenser 12.
The “return” pipeline 3 is made with two parallel first and second pipelines 19, 20 of the bypass branch 21 of different hydraulic resistance, of which the first solenoid valve 22 is installed in the first pipeline 19 of the bypass branch 21 with lower hydraulic resistance, and the bypass branch 21 in the second pipe 20 with high hydraulic resistance, a thermally controlled valve 23 with an adjustable flow area and a second electrovalve 24 are sequentially installed.
The water heater-steam generator 15 is equipped with a first temperature sensor 25, which is electrically connected with the first and second electrovalves 22, 24 of the first and second pipelines 19, 20 of the bypass branch 21 of different hydraulic resistance for their selective on and off depending on the temperature in the water heater-steam generator 15, and the heat exchanger-condenser 12 is equipped with a second temperature sensor 26, which is electrically connected with the first temperature sensor 25 on the water heater-steam generator 15 and together with it (25) provides control x signals to the first and second electrovalves 22, 24 when the temperature of the coolant at the output of the heat exchanger-condenser 12 deviates from a given value.
Bypass branch 21 of the "return" pipe 3 return flow of coolant is equipped with a drain pipe 27 with a shut-off valve 28.
As a heat storage body (TAT) 5 in a water heating system, liquid substances, solids, as well as granular and powder materials with high heat capacity can be used.
As the heaters 8, mainly electric heaters are used in the system, but other heaters can be used, for example, using the heat of the coolant circulating in them.
Autonomous water heating system for use in the consumption system, mainly heating and / or hot water supply works as follows.
The operation of the system is based on the liquid and vapor-liquid principles of heat transfer to the consumption system 9, for example, to radiator batteries of the heating system.
Therefore, before putting the system into operation, it must be filled with water.
The system is filled through the outlet 14 of the expansion tank 11 with the circulation pump 10 turned off and there is no power supply on the first and second electrovalves 22, 24.
In this case, the temperature of the heat storage body (TAT) 5 should not be lower than 0 ° C.
Then the water in the consumption system 9 (radiator batteries), in the heat exchanger-condenser 12 and the heat accumulator 4, made in the form of a water heater-steam generator 15, flows by gravity into the system, and the air present in the system is displaced from it into the atmosphere through the outlet 14 and drainage pipe (shown, but not indicated) of the expansion tank 11 and through the drain pipe 27 and the open shut-off valve 28.
After filling the system with water, the shutoff valve 28 is closed.
The functioning of a filled system, for example, with electric heaters 8, starts from the moment of supplying electric voltage to the mentioned electric heaters 8 located in the heat storage body (TAT) 5, as well as to the circulation pump 10 and to the power circuit of the first and second electrovalves 22, 24, which are installed, respectively, on the first and second pipelines 19, 20 of the bypass branch 21 and are connected to the section of the "return" pipe 3 of the circuit 1 of the coolant for supplying the inlet pipe 17 for water supply and generating steam heat accumulator 4, made in the form of a water heater-steam generator 15.
The heating of the heat storage body (TAT) 5 of the heat accumulator 4, made in the form of a water heater-steam generator 15, for example with electric heaters 8, is carried out mainly at night, when electricity is consumed at a reduced night rate.
The power supply circuit of the first and second electrovalves 22, 24 is switched in series with the first and second temperature sensors 25, 26.
The second temperature sensor 26 closes and opens the power supply of the first and second solenoid valves 22, 24 depending on the temperature in the upper part of the heat exchanger-condenser body 12, and the first temperature sensor 25 selects the inclusion of one of the first or second solenoid valves 22, 24 when the temperature on the wall of the cavity 16 is thermal the battery 4, made in the form of a water heater-steam generator 15, turns out to be greater or less than a predetermined level (100 ° C) and thereby provides liquid or vapor-liquid modes of heat transfer from the internal the surface of the walls in the steam generator-water heater 15 to the flow of water in the heat exchanger-steam condenser 12.
In particular, when the temperature at the outlet of the heat exchanger-condenser 12 is below a predetermined level, and the temperature on the surface of the housing 7 of the water heater-steam generator 15 is less than 100 ° C, then the first and second temperature sensors 25 and 26, connected in series, pass the supply voltage to the first solenoid valve 22.
The first electrovalve 22 is located in the line of the first pipeline 19 with less hydraulic resistance of the bypass branch 21 of the power supply of the water heater-steam generator 15.
Switching the solenoid valve 22 from a normally closed state to an open state provides an intensive supply of water for heating through an inlet pipe 17 into a cavity 16 for heating water and generating steam of a water heater-steam generator 15.
The heated water leaving the cavity 16 for heating water and generating steam of the water heater-steam generator 15 enters through the end of the outlet pipe 18, introduced with an annular gap (S 2 ) into the heat exchanger-condenser 12, is mixed with a branch of the recirculating water stream entering the heat exchanger-condenser 12 through throttle 13.
In this case, both convective heat transfer through the wall of the end of the outlet pipe 18, introduced with an annular gap (S2) into the heat exchanger-condenser 12, and intense direct exchange between the "cold" water (coolant coming through the "return" pipe 3 from the consumption system 9 of the circuit 1 of the circulation) and heated water (coming through the outlet pipe 18 from the cavity 16 for heating water and generating steam of a water heater-steam generator 15) during their mixing and heat and mass transfer processes.
As a result, the coolant is rapidly heated at the outlet of the heat exchanger-condenser 12 to a predetermined temperature, which is significantly higher than the temperature of the coolant at its inlet.
Due to this, a liquid-liquid mechanism is used to transfer heat from the cavity 16 for heating water and generating steam of the water heater-steam generator 15 to the circuit 1 of the heat carrier and to the consumption system 9, and the periodic operation of the second temperature sensor 26 at a predetermined temperature level of the heating medium maintains a predetermined temperature coolant (heated water) like a thermostat.
But when the ongoing heating of the heat storage body (TAT) 5 from, for example, electric heaters 8, increases the temperature on the wall of the cavity 16 for heating water and generating steam of the water heater-steam generator 15 to a temperature of 100 ° C and above, the switch in the first temperature sensor 25 is activated.
The supply voltage is now supplied to the second electrovalve 24, and the first electrovalve 22 goes into a normally closed state, that is, the second pipeline 20 of the bypass branch 21 with high hydraulic resistance is turned on.
On this pipeline 20 of the bypass branch 21, a thermally controlled valve 23 with an adjustable flow cross section is installed, which has a high hydraulic resistance and thereby sharply reduces the intensity of the water supply to the cavity 16 for heating water and generating steam from the heat accumulator 4, made in the form of a water heater-steam generator 15, through the inlet 17.
In the water heater-steam generator 15, water quickly boils and, under the influence of the pressure of the generated steam, is forced out of the cavity 16 for heating water and generating steam through the outlet pipe 18 of the water heater-steam generator 15 and also through the circuit 1 of the coolant circulation to the consumption system 9.
The steam leaving the cavity 16 for heating water and generating steam of the water heater-steam generator 15 enters through the end of the outlet pipe 18 introduced into the heat exchanger-condenser 12 with an annular gap (S 2 ), the end of which is located at a distance (S 3 ) from the bottom wall the heat exchanger-condenser 12, condenses and mixes with a branch of the recirculating stream of water entering the heat exchanger-condenser 12 through the inductor 13.
In this case, both convective heat transfer through the wall of the end of the outlet pipe 18, introduced with an annular gap (S 2 ) into the heat exchanger-condenser 12, and intense direct exchange between the "cold" water (coolant coming through the "return" pipe 3 from the system consumption 9 of the circuit 1 of the circulation) and hot water that condenses from the steam (coming through the outlet pipe 18 from the cavity 16 for heating water and generating steam of the water heater-steam generator 15) during their mixing and the heat and mass exchange processes.
The volume of water displaced by the steam from the water heater-steam generator 15 to the coolant circulation circuit 1 and to the consumption system 9 increases the water level in the expansion tank 11, and only the volume of water remains in the space 16 for heating water and generating steam of the water heater-steam generator 15, filling the space between the end face of the outlet pipe 18 and the lower wall of said cavity 16, limited by the distance (S 1 ).
This volume of water displaced by the steam does not change when, through a thermally controlled valve 23 with an adjustable bore of the second pipe 20 of the bypass branch 21 with high hydraulic resistance, the supply of feed water entering through the inlet pipe 17 into the cavity 16 for heating water and generating steam of the water heater-steam generator 15 , is exactly compensated by a decrease in its amount due to boiling in the aforementioned cavity 16 under the action of heat generated by the heaters 8 and the heat storage body (TAT) 5.
But with a continuously ongoing heating process, for example, by electric heaters 8, of a heat storage body (TAT) 5, such a condition, that is, a balanced volume of water inflow into the cavity 16 for heating water and generating steam and the volume of boiled water and converted into steam, is not fulfilled and enters into the above-mentioned cavity 16, the supply water in the water heater-steam generator 15 is completely boiled out.
Further, steam is generated only from the flow of water entering the cavity 16 for heating water and generating steam of the water heater-steam generator 15 through a thermally controlled valve 23 with an adjustable flow section of the second pipe 20 of the bypass branch 21 with high hydraulic resistance and through the second electrovalve 24.
In this case, the water has time to boil already in the space of the inlet pipe 17, which feeds it to the water heater-steam generator 15, and the water heater-steam generator 15 begins to function as a device for overheating the steam.
The resulting superheated steam through the outlet pipe 18 enters the heat exchanger-condenser 12 and condenses.
The superheated steam leaving the cavity 16 for heating water and generating steam of the water heater-steam generator 15 enters through the end of the outlet pipe 18 introduced into the heat exchanger-condenser 12 with an annular gap (S 2 ), the end of which is located at a distance (S 3 ) from the bottom the walls of the heat exchanger-condenser 12, condenses and mixes with a branch of the recirculating water stream entering the heat exchanger-condenser 12 through the inductor 13.
When this happens, as convective heat transfer through the wall of the end of the outlet pipe 18 for heating water and generating steam introduced with an annular gap (S 2 ) into the heat exchanger-condenser 12, and an intense direct exchange between the "cold" water (coolant supplied through return "pipeline 3 from the consumption system 9 of the circuit 1 of the circulation) and hot water that condenses from the steam (coming through the outlet pipe 18 from the said cavity 16 of the water heater-steam generator 15) during mixing and occurring heat and mass transfer processes.
The circulation of the coolant in the circuit 1 and in the consumption system 9 is provided by a circulation pump 10 installed in the line of the “return” pipe 3, which through the throttle 13 supplies the coolant to be heated in the heat exchanger-condenser 12.
In addition, the circulation pump 10 also supplies coolant - water through two parallel first and second pipelines 19, 20 of the bypass branch 21 of different hydraulic resistance, equipped with the first and second electrovalves 22, 24, through the inlet pipe 17 into the cavity 16 for heating water and generating steam a water heater-steam generator 15 for generating steam.
The temperature of the water heated by steam is still controlled by a second temperature sensor 26 mounted on a heat exchanger-condenser 12.
The second temperature sensor 26, together with the second electrovalve 24, automatically controls the recharge of the water heater-steam generator 15 with water intended for evaporation and, thus, maintains the temperature of the water leaving the heat exchanger-condenser 12 at a predetermined level.
In this case, a vapor-liquid heat transfer mechanism from the heat storage body (TAT) 5 of the water heater-steam generator 15 to the circuit 1 of the heat carrier and to the consumption system 9 is realized due to the heat and mass transfer processes occurring in the heat exchanger-condenser 12.
During the subsequent cooling of the heat storage body (TAT) 5, when the electric heaters 8 are disconnected from the electrical network, the processes described above are implemented in the reverse order, until the temperature of the heat storage body (TAT) 5 becomes equal to the ambient temperature.
Thus, improvement of the design of the water heating system by introducing into its composition means ensuring both convective heat transfer through the walls of the pipelines and direct exchange between the heat carrier (water) and the heating medium (heated water or condensed water from steam) during their mixing and occurring heat and mass transfer processes, reduces the cost of heating water.
The above information confirms the industrial applicability of the improved autonomous water heating system for use in the consumption system, mainly heating and / or hot water supply, which can be widely used in housing and communal services.
Notation list
1. coolant circuit
2. "direct" pipeline direct supply of coolant
3. "return" pipe return flow
4. thermal battery
5. heat storage body (TAT)
6. heat insulating shell
7. housing
8. heater
9. consumption system, mainly heating and / or hot water
10. circulation pump
11. expansion tank
12. heat exchanger-condenser
13. throttle
14. tap of the “direct” pipeline to the expansion tank
15. water heater - steam generator
16. cavity for heating water and generating steam
17. inlet pipe for supplying water for heating and generating steam
18. outlet pipe for draining heated water and the resulting steam
19. first pipeline bypass branch with less hydraulic resistance
20. the second pipeline bypass branch with high hydraulic resistance
21. the bypass branch of the "return" pipe return flow
22. first electrovalve
23. Thermostatic valve with adjustable flow area
24. second solenoid valve
25. first temperature sensor
26. second temperature sensor
27. drain pipe
28. shutoff valve

Claims (4)

1. Autonomous water heating system for use in the consumption system, mainly heating and / or hot water supply, containing coolant circuits connected to the circuit (1), having “direct” (2) and “return” (3) pipelines (2, 3) respectively, direct and reverse supply of the coolant, a heat accumulator (4), made with a heat storage body (TAT) (5), enclosed in a heat-insulating shell (6) and a housing (7) and equipped with heaters (8), a consumption system (9), predominantly heating and / or hot water , a circulation pump (10) and an expansion tank (11), characterized in that it is equipped with a hydraulically open heat exchanger-condenser (12), which is integrated in the main circuit of the coolant circulation circuit (1) and is connected to the “return” pipe (3) at one end in the area behind the sequentially located circulation pump (10) and throttle (13), and the other end is connected to the “direct” pipe (2) in the area before the outlet (14) to the expansion tank (11), and the heat accumulator (4) is made in the form of a water heater-steam generator (15), equipped heated by heaters (8) and having a cavity (16) inside for heating water and generating steam, into which (16) an inlet pipe (17) is introduced for supplying water for heating and generating steam, and an outlet pipe (18) for draining heated water and steam, while the inlet pipe (17) of the water heater-steam generator (15) is inserted at one end into the cavity (16) for heating water and generating steam, and at the other end is connected to the “return” pipe (3) in the area between the circulation pump (10) ) and the first choke (13), and the outlet pipe (18) is water-heated the fir-steam generator (15) is inserted at one end into the cavity (16) for heating water and generating steam so that its end is at a distance (S 1 ) from the bottom wall of the internal cavity (16) for heating water and generating steam, and at the other end introduced into the heat exchanger-condenser (12) with an annular gap (S 2 ) intended for circulation and heating of water, so that its end face is at a distance (S 3 ) from the bottom wall of the heat exchanger-condenser (12).
2. Autonomous water heating system for use in the consumption system, mainly heating and / or hot water supply according to claim 1, characterized in that the "return" pipeline (3) is made with two parallel first and second pipelines (19, 20) of the bypass branch (21) different hydraulic resistance, of which the first solenoid valve (22) is installed in the first pipeline (19) of the bypass branch (21) with a lower hydraulic resistance, and the last solenoid valve in the second pipeline (20) of the bypass branch (21) quently mounted termoupravlyaemy valve (23) with adjustable passage section and a second solenoid valve (24).
3. An autonomous water heating system for use in the consumption system, mainly heating and / or hot water supply according to claim 2, characterized in that the water heater-steam generator (15) is equipped with a first temperature sensor (25), which is electrically connected to the first and second electrovalves ( 22, 24) of the first and second pipelines (19, 20) of the bypass branch (21) of different hydraulic resistance to selectively turn them on and off depending on the temperature in the water heater-steam generator (15), and the heat exchanger-condenser (12) is equipped with it is connected with a second temperature sensor (26), which is electrically connected with the first temperature sensor (25) on the water heater-steam generator (15) and together with it (25) provides control signals to the first and second electrovalves (22, 24) when the temperature of the coolant at the outlet deviates heat exchanger-condenser (12) from a given value.
4. Autonomous water heating system for use in the consumption system, mainly heating and / or hot water supply according to claim 2, characterized in that the bypass branch (21) of the "return" pipe (3) for the return of the coolant is equipped with a drain pipe (27) with shutoff valve (28).
Figure 00000001
RU2011103884/03U 2010-10-11 2011-02-03 Autonomous water heating system for use in the system of consumption, previously heating and / or hot water supply RU105721U1 (en)

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UAU201012015 2010-10-11
UAU201012015U UA58080U (en) 2010-10-11 2010-10-11 Autonomous water heating system for use in consumption system, preferably for heating and/or hot water supply

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111174417A (en) * 2020-01-10 2020-05-19 刘倩倩 High-efficiency quick-heating type household electric water heater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111174417A (en) * 2020-01-10 2020-05-19 刘倩倩 High-efficiency quick-heating type household electric water heater

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