CN209744518U - Electric control mixed heat source centralized domestic hot water system - Google Patents
Electric control mixed heat source centralized domestic hot water system Download PDFInfo
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- CN209744518U CN209744518U CN201920009590.2U CN201920009590U CN209744518U CN 209744518 U CN209744518 U CN 209744518U CN 201920009590 U CN201920009590 U CN 201920009590U CN 209744518 U CN209744518 U CN 209744518U
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Abstract
The embodiment of the utility model discloses an electric control mixed heat source centralized domestic hot water system, which comprises a water positive displacement heat exchanger, wherein a hot water cavity and a heat exchange cavity are arranged in the water positive displacement heat exchanger, and heat can be exchanged between the hot water cavity and the heat exchange cavity; the hot water cavity is provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet, the first water inlet and the first water outlet are respectively connected with a water outlet pipe and a water inlet pipe of the air source circulating hot water subsystem, the second water inlet is connected with a water return device, the second water outlet is connected with a domestic water terminal, the water return device is provided with a first thermometer, and the second water outlet is provided with a second thermometer; and a third water inlet of the heat exchange cavity is connected with a water inlet pipe of the boiler circulating hot water subsystem, and a third water outlet of the heat exchange cavity is connected with a water outlet pipe of the boiler circulating hot water subsystem.
Description
Technical Field
The utility model relates to a concentrate life hot water system heat source supply and hot water energy-conserving technical field, concretely relates to automatically controlled mixed heat source concentrated life hot water system.
Background
The traditional centralized domestic hot water in China adopts a boiler as a domestic hot water heat source, and domestic hot water is taken as a 24-hour supply system all the year round, and occupies an important part of building energy consumption. Therefore, the energy saving requirement of the part is particularly important. In recent years, domestic air pollution is getting more and more intense, people pay more and more attention to the degree of concern about the environment and health, and people pursue more and more attention to clean energy. The traditional gas boiler has large energy consumption of heat source and is unfavorable for controlling air pollution. This is particularly important for the determination of building heat sources using concentrated domestic hot water.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide an automatically controlled mixed heat source concentrated life hot water system for solve the serious problem of current hot water system pollution.
To achieve the above object, the embodiments of the present invention are as follows:
An automatically controlled mixed heat source concentrated life hot-water heating system which characterized in that: the heat exchanger comprises a water volume type heat exchanger, wherein a hot water cavity and a heat exchange cavity are arranged in the water volume type heat exchanger, and heat can be exchanged between the hot water cavity and the heat exchange cavity; the hot water cavity is provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet, the first water inlet and the first water outlet are respectively connected with a water outlet pipe and a water inlet pipe of the air source circulating hot water subsystem, the second water inlet is connected with a water return device, the second water outlet is connected with a domestic water terminal, the water return device is provided with a first thermometer, and the second water outlet is provided with a second thermometer; and a third water inlet of the heat exchange cavity is connected with a water inlet pipe of the boiler circulating hot water subsystem, and a third water outlet of the heat exchange cavity is connected with a water outlet pipe of the boiler circulating hot water subsystem.
according to another preferred technical scheme, the air source circulating hot water subsystem comprises an air source heat pump hot water unit, a first electric valve and an air source heat pump circulating water pump, wherein a water outlet pipe of the air source heat pump hot water unit is connected with a first water inlet, a water inlet pipe of the air source heat pump hot water unit is connected with a first water outlet, and the water outlet pipe is provided with a first electric valve and the air source heat pump circulating water pump.
In another preferred technical scheme, if the number of the air source heat pump hot water units is greater than 1, the air source heat pump hot water units are connected in parallel, and a water outlet pipe of each air source heat pump hot water unit is provided with a first electric valve.
According to another preferred technical scheme, the boiler circulating hot water subsystem comprises a gas-fired boiler, a boiler circulating pump and a second electric valve, a water outlet pipe of the gas-fired boiler is connected with a third water inlet, a water inlet pipe of the gas-fired boiler is connected with a third water outlet, and the boiler circulating pump and the second electric valve are arranged on the water outlet pipe.
According to another preferred technical scheme, the water return device comprises a water return pipe, a water return circulating pump and a cold water feed pipe, one end of the water return pipe is connected with a domestic hot water terminal, the other end of the water return pipe is connected with the water return circulating pump, and a water outlet pipe of the water return circulating pump is connected with the second water inlet after being connected with the cold water feed pipe in parallel.
In another preferred technical scheme, a hot water expansion tank is arranged on the cold water supply pipe.
in another preferred embodiment, the first thermometer is an electrical contact thermometer.
The embodiment of the utility model provides a have following advantage:
The air source hot water unit of the system is modular, is flexible to start, can set temperature values according to the water quantity and the heat consumption quantity of the tail end, flexibly increases the running air source hot water unit module through the temperature sensor, thereby realizing effective energy-saving running and greatly reducing the energy consumption of a domestic hot water system. When the temperature of the temperature sensor of the positive displacement hot water tank is lower than 45 ℃, one air source hot water circulating pump is started, one air source heat pump hot water unit module group is started, and domestic hot water is heated in a circulating mode until the temperature requirement of the domestic hot water is met. The temperature of water supply and return of the modular air source heat pump hot water unit is 60-50 ℃, and the highest temperature can provide 65 ℃ domestic hot water.
Drawings
Fig. 1 is an overall structure diagram of an electric control mixed heat source centralized domestic hot water system provided in embodiment 1 of the present invention;
Fig. 2 is a schematic water flow diagram of the water displacement heat exchanger of fig. 1.
In the figure:
1. A water displacement heat exchanger; 2. a hot water chamber; 3. a heat exchange cavity; 4. a first water inlet; 5. a first water outlet; 6. a second water inlet; 7. a second water outlet; 8. a first thermometer; 9. a second thermometer; 10. an air source heat pump hot water unit; 11. a first electrically operated valve; 12. an air source heat pump circulating water pump; 13. a gas boiler; 14. a second electrically operated valve; 15. a boiler circulation pump; 16. a third water inlet; 17. a third water outlet; 18. a water return pipe; 19. a backwater circulating pump; 20. a cold water feed pipe; 21. a hot water expansion tank.
Detailed Description
the following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structures, ratios, sizes, etc. shown in the present specification are only used to match the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used to limit the practical limitations of the present invention, so that they do not have the essential meaning in the art, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes should still fall within the scope of the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
As shown in fig. 1-2, an electric control mixed heat source centralized domestic hot water system comprises a water volume type heat exchanger 1, wherein a hot water cavity 2 and a heat exchange cavity 3 are arranged in the water volume type heat exchanger 1, and heat can be exchanged between the hot water cavity 2 and the heat exchange cavity 3; the hot water cavity 2 is provided with a first water inlet 4, a first water outlet 5, a second water inlet 6 and a second water outlet 7, the first water inlet 4 and the first water outlet 5 are respectively connected with a water outlet pipe and a water inlet pipe of an air source circulating hot water subsystem, the second water inlet 6 is connected with a water return device, the second water outlet 7 is connected with a domestic water terminal, the water volume type heat exchanger is provided with a first thermometer 8, the first thermometer 8 is preferably an electric contact thermometer in the embodiment, and the water return device is provided with a second thermometer 9; and a third water inlet 16 of the heat exchange cavity 3 is connected with a water inlet pipe of the boiler circulating hot water subsystem, and a third water outlet 17 of the heat exchange cavity 3 is connected with a water outlet pipe of the boiler circulating hot water subsystem.
The air source circulating hot water subsystem specifically comprises an air source heat pump hot water unit 10, a first electric valve 11 and an air source heat pump circulating water pump 12, wherein a water outlet pipe of the air source heat pump hot water unit 10 is connected with a first water inlet 4, a water inlet pipe of the air source heat pump hot water unit 10 is connected with a first water outlet 5, the water inlet pipe is provided with the first electric valve 11 and the air source heat pump circulating water pump 12, the first electric valve 11 is used for switching on and off the water inlet of the air source heat pump hot water unit 10, and the air source heat pump circulating water pump 12 is used for keeping the water temperature in a pipeline unchanged.
If the number of the air source heat pump hot water units 10 is greater than 1, the air source heat pump hot water units 10 are connected in parallel, and a first electric valve 11 is arranged on a water inlet pipe of each air source heat pump hot water unit 10. When the temperature of the water in the water-displacement heat exchanger 1 is as low as 50 ℃ (this temperature can be adjusted in actual operation, for example, set at 45 ℃ in summer), the temperature is detected by the first thermometer 8, the air source heat pump hot water unit 10 is started at full load, and domestic hot water is heated in a circulating manner until the temperature of the water in the heat exchanger reaches 60 ℃, and the air source heat pump hot water unit 10 is stopped. Firstly, 50% of the air source heat pump hot water units 10 are started, whether the running quantity is increased or not is judged according to the domestic water consumption condition, and when the air source heat pump hot water units 10 run at full load and can not meet the water temperature of 60 ℃, all the air source heat pump hot water units 10 are started.
The boiler circulating hot water subsystem comprises a gas boiler 13, a boiler circulating pump 15 and a second electric valve 14, wherein a water outlet pipe of the gas boiler 13 is connected with a third water inlet 16, a water inlet pipe of the gas boiler 13 is connected with a third water outlet 17, and the water outlet pipe is provided with the boiler circulating pump 15 and the second electric valve 14. The gas boiler 13 is used as a standby heat source, and is started by using electric energy, and the electric energy is clean energy, so that the use of gas can be reduced, and the pollution to air is reduced.
The water return device comprises a water return pipe 18, a water return circulating pump 19 and a cold water feed pipe 20, one end of the water return pipe 18 is connected with a domestic hot water terminal, the other end of the water return pipe is connected with the water return circulating pump 19, and a water outlet pipe of the water return circulating pump 19 is connected with the second water inlet 6 after being connected with the cold water feed pipe 20 in parallel. The waste heat water that life hot water terminal produced flows back through return pipe 18, and return circulating pump 19 is used for providing stable return water pressure for return pipe 18 way, and the preliminary heat exchange is carried out to the return water after flowing out from return circulating pump 19 delivery port and mixing with cold water earlier, then enters into water and holds the formula heat exchanger, has utilized the heat in the return water, has avoided thermal waste. And a hot water expansion tank 21 is arranged on the cold water feed pipe 20 and is used for balancing the water pressure in the whole water circulation system.
When the temperature of the return water is detected to be lower than a set temperature (50 ℃) by the first thermometer 8 and the second thermometer 9, the return water circulating pump 19 is started to start with the air source heat pump thermal circulating water pump 12, the first electric valve 11 is started, then the air source heat pump hot water unit 10 is started to heat the water in the hot water cavity 2, namely, the domestic hot water is heated, and when the water temperature meets the set temperature (60 ℃); when the first thermometer 8 detects that the water temperature is still lower than 50 degrees after all the air source heat pump hot water units 10 are started, the second electric valve 14 is started, the boiler circulating pump 15 is started, and finally the gas boiler 13 is started to provide high-temperature hot water of 85-60 ℃ to enter the heat exchange cavity 3 of the water volume type heat exchanger 1, so that the heat exchange cavity 3 and the hot water cavity 2 exchange heat to heat the hot water in the hot water cavity 2, and the hot water supply at low temperature is guaranteed.
although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. An automatically controlled mixed heat source concentrated life hot-water heating system which characterized in that: the heat exchanger comprises a water volume type heat exchanger, wherein a hot water cavity and a heat exchange cavity are arranged in the water volume type heat exchanger, and heat can be exchanged between the hot water cavity and the heat exchange cavity; wherein the content of the first and second substances,
The hot water cavity is provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet, the first water inlet and the first water outlet are respectively connected with a water outlet pipe and a water inlet pipe of the air source circulating hot water subsystem, the second water inlet is connected with a water return device, the second water outlet is connected with a domestic water terminal, the water return device is provided with a first thermometer, and the second water outlet is provided with a second thermometer;
and a third water inlet of the heat exchange cavity is connected with a water inlet pipe of the boiler circulating hot water subsystem, and a third water outlet of the heat exchange cavity is connected with a water outlet pipe of the boiler circulating hot water subsystem.
2. The electrically controlled hybrid heat source centralized domestic hot water system of claim 1, wherein: the air source circulating hot water subsystem comprises an air source heat pump hot water unit, a first electric valve and an air source heat pump circulating water pump, wherein a water outlet pipe of the air source heat pump hot water unit is connected with a first water inlet, a water inlet pipe of the air source heat pump hot water unit is connected with a first water outlet, and the water outlet pipe is provided with a first electric valve and the air source heat pump circulating water pump.
3. the electrically controlled hybrid heat source centralized domestic hot water system of claim 2, wherein: and if the number of the air source heat pump hot water units is more than 1, the air source heat pump hot water units are connected in parallel, and a water outlet pipe of each air source heat pump hot water unit is provided with a first electric valve.
4. The electrically controlled hybrid heat source centralized domestic hot water system of claim 1, wherein: the boiler circulating hot water subsystem comprises a gas boiler, a boiler circulating pump and a second electric valve, a water outlet pipe of the gas boiler is connected with a third water inlet, a water inlet pipe of the gas boiler is connected with a third water outlet, and the water outlet pipe is provided with the boiler circulating pump and the second electric valve.
5. The electrically controlled hybrid heat source centralized domestic hot water system of claim 1, wherein: the water return device comprises a water return pipe, a water return circulating pump and a cold water feed pipe, one end of the water return pipe is connected with the domestic hot water terminal, the other end of the water return pipe is connected with the water return circulating pump, and a water outlet pipe of the water return circulating pump is connected with the second water inlet after being connected with the cold water feed pipe in parallel.
6. The electrically controlled hybrid heat source centralized domestic hot water system of claim 5, wherein: and a hot water expansion tank is arranged on the cold water supply pipe.
7. The electrically controlled hybrid heat source centralized domestic hot water system of claim 1, wherein: the first thermometer is an electric contact thermometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009590.2U CN209744518U (en) | 2019-01-04 | 2019-01-04 | Electric control mixed heat source centralized domestic hot water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009590.2U CN209744518U (en) | 2019-01-04 | 2019-01-04 | Electric control mixed heat source centralized domestic hot water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209744518U true CN209744518U (en) | 2019-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920009590.2U Expired - Fee Related CN209744518U (en) | 2019-01-04 | 2019-01-04 | Electric control mixed heat source centralized domestic hot water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209744518U (en) |
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2019
- 2019-01-04 CN CN201920009590.2U patent/CN209744518U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 Termination date: 20220104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |