A whole type heat pump water heater with heating function

Abstract

The utility model relates to integral heat pump water heater with heating function, including the heat storage water tank in air source heat pump water heater, heat exchange water pipe, electric heating part, water tank thermometer, first gate valve, water mixing valve, heating water supply pump, heating thermometer, heating system, first tee piece, second gate valve, fifth gate valve, backwater pump, backwater thermometer, second tee piece, fourth gate valve and third gate valve. Its advantage is that it has the property of heating, that is, it has the mode of domestic hot water and house heating; it is suitable for occasions with hot water demand and heating demand in the apartment and family, the unit is compact, convenient to install, and one machine solves the hot water and heating demand.

Description

Technical Field

[0001] This utility model relates to an integrated heat pump water heater with heating function. Background Technology

[0002] Currently, heat pump water heaters on the market only provide hot water and do not have heating functions; users need to purchase a separate heater if they require heating. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an integrated heat pump water heater with heating function. It has heating attributes, that is, it has a mode of domestic hot water and house heating. It is suitable for apartments and families with hot water and heating needs. The unit is compact, easy to install, and solves the hot water and heating needs in one machine.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: it is an integrated heat pump water heater with heating function, characterized by comprising: The air source heat pump water heater includes a hot water storage tank, a hot water exchange pipe, an electric heating element, and a water tank thermometer; the hot water exchange pipe, the electric heating element, and the water tank thermometer are respectively installed in the hot water storage tank. The system comprises a first gate valve, a mixing valve, a heating water supply pump, a heating thermometer, and a heating system; the mixing valve has ports a, b, and c; the outlet of the hot water exchange pipe is connected to port a of the mixing valve through the first gate valve; port c of the mixing valve is connected to the inlet of the heating system through the heating water supply pump; and the heating thermometer is installed in the working water circuit or the inlet water circuit of the heating system. The first three-way fitting and the second gate valve; the first three-way fitting has one inlet and two outlets, the inlet of the first three-way fitting is connected to the outlet of the heating system, one outlet of the first three-way fitting is connected to port b of the mixing valve, and the other outlet of the first three-way fitting is connected to the inlet of the hot water exchange pipe through the second gate valve. The system includes a fifth gate valve, a return water pump, and a return water thermometer; the outlet of the hot water storage tank is connected to the inlet of the fifth gate valve, and the outlet of the fifth gate valve is connected to both the external domestic hot water inlet and the inlet of the return water pump; the return water thermometer is installed at the outlet of the return water pump; and... The second three-way valve, the fourth gate valve, and the third gate valve; the second three-way valve has two inlets and one outlet, one inlet of the second three-way valve is connected to the outlet of the return water pump, the other inlet of the second three-way valve is connected to the outlet of the fourth gate valve, and the outlet of the second three-way valve is connected to the inlet of the hot water storage tank through the third gate valve.

[0005] In this technical solution, the outlet of the hot water storage tank is located at the top of the hot water storage tank, and the inlet of the hot water storage tank is located at the bottom of the hot water storage tank.

[0006] This technical solution also includes a drain valve; the drain outlet of the hot water storage tank is connected to the outside through the drain valve.

[0007] This technical solution also includes a first check valve, and the fourth gate valve is connected to another inlet of the second tee through the first check valve.

[0008] This technical solution also includes a second check valve, and the outlet of the return water pump is connected to one inlet of the second tee through the second check valve.

[0009] The advantages of this utility model compared with the prior art are: it has heating properties, that is, it has a domestic hot water plus house heating mode; it is suitable for apartments and families with hot water and heating needs; the unit is compact, easy to install, and solves both hot water and heating needs with one unit. Attached Figure Description

[0010] Figure 1 This is a waterway structure diagram of this utility model. Detailed Implementation

[0011] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0012] like Figure 1 The above describes an integrated heat pump water heater with heating function, comprising: The air source heat pump water heater includes a hot water storage tank 1, a hot water exchange pipe 2, an electric heating element 10, and a water tank thermometer 19; the hot water exchange pipe 2, the electric heating element 10, and the water tank thermometer 19 are respectively installed in the hot water storage tank 1. The system comprises a first gate valve 3, a mixing valve 4, a heating water supply pump 5, a heating thermometer 6, and a heating system 7. The mixing valve 4 has an a port, a b port, and a c port. The outlet of the hot water exchange pipe 2 is connected to the a port of the mixing valve 4 through the first gate valve 3. The c port of the mixing valve 4 is connected to the inlet of the heating system 7 through the heating water supply pump 5. The heating thermometer 6 is installed in the working water circuit or the inlet water circuit of the heating system 7. The first three-way fitting 8 and the second gate valve 9; the first three-way fitting 8 has an inlet and two outlets. The inlet of the first three-way fitting 8 is connected to the outlet of the heating system 7. One outlet of the first three-way fitting 8 is connected to port b of the mixing valve 4. The other outlet of the first three-way fitting 8 is connected to the inlet of the hot water exchange pipe 2 through the second gate valve 9. The system includes a fifth gate valve 20, a return water pump 18, and a return water thermometer 17; the outlet of the hot water storage tank 1 is connected to the inlet of the fifth gate valve 20, and the outlet of the fifth gate valve 20 is connected to both the external domestic hot water inlet and the inlet of the return water pump 18; the return water thermometer 17 is installed at the outlet of the return water pump 18; and... The second three-way valve 13, the fourth gate valve 15, and the third gate valve 12; the second three-way valve 13 has two inlets and one outlet. One inlet of the second three-way valve 13 is connected to the outlet of the return water pump 18, and the other inlet of the second three-way valve 13 is connected to the outlet of the fourth gate valve 15. The outlet of the second three-way valve 13 is connected to the inlet of the hot water storage tank 1 through the third gate valve 12.

[0013] During use, the heating mode is controlled as follows: When the user selects the heating mode, first compare the temperature T1 of the water tank thermometer 19 with the temperature T3 of the heating thermometer 6. If T1≥T3 and the user is not currently using hot water, the heating water supply pump 5 is turned on, the mixing valves a and b are connected, and c is also turned on. The mixing valves are adjusted so that the return water of the heating system and the hot water of the heat exchange tubes are supplied to the heating system together, thereby quickly reaching the heating temperature set by the user. At this time, the air source heat pump unit does not need to be turned on, and heating is provided by the heat from the water storage tank 1. If T1 < T3, the heat pump unit starts, the electric heating element 10 starts heating, and the heating water supply pump 5 remains on until T1 ≤ 35℃. Then, the heating water supply pump 5 shuts down, the heat pump unit stops supplying heat, the mixing valve 4a closes, and valves b and c are connected, allowing the heating system to circulate internally. When T1 ≥ T3, the above operation is repeated.

[0014] When users use hot water, in hot water mode, customers can select and set the return water mode.

[0015] The water return mode has two control logics: one is the automatic mode, which executes automatically based on water temperature comparison; the other is the user-set timed water return, which can only be executed within a fixed time and will not be executed at other times.

[0016] The hot water return control is as follows: After selecting the return function, first compare the temperature T1 of the water tank thermometer 19 with the temperature T2 of the return water thermometer 17. If T1 < T2, the water return function will not be executed. If T1 ≥ T2, the water return function will be executed, and the control strategy is as follows: In automatic mode, when the user selects the hot water return function, the unit detects that the hot water return temperature T2 is less than the user-set value T22, and the return water pump 18 starts running until T2≥T22+2℃, at which point the return water pump 18 shuts down. The timed return water pump 18 starts according to the set time after the set time, and stops when T2≥T22+2℃.

[0017] The above operations meet various user comfort needs while controlling the heating water supply temperature of the unit through the mixing valve, effectively reducing the water supply temperature to achieve energy saving, and also reducing the temperature of the hot water tank caused by heating demand.

[0018] In this embodiment, the outlet of the hot water storage tank 1 is located at the upper part of the hot water storage tank 1, and the inlet of the hot water storage tank 1 is located at the lower part of the hot water storage tank 1.

[0019] In this embodiment, a drain valve 11 is also included; the drain outlet of the hot water storage tank 1 is connected to the outside through the drain valve 11.

[0020] In this embodiment, a first check valve 14 is also included, and the fourth gate valve 15 is connected to another inlet of the second three-way fitting 13 through the first check valve 14.

[0021] In this embodiment, a second one-way valve 16 is also included, and the outlet of the return water pump 18 is connected to an inlet of the second three-way fitting 13 through the second one-way valve 16.

[0022] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations of these embodiments without departing from the principles and spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. An integrated heat pump water heater with heating function, characterized in that... include: The air source heat pump water heater includes a hot water storage tank (1), a hot water exchange pipe (2), an electric heating element (10), and a water tank thermometer (19); the hot water exchange pipe (2), the electric heating element (10), and the water tank thermometer (19) are respectively installed in the hot water storage tank (1); The system comprises a first gate valve (3), a mixing valve (4), a heating water supply pump (5), a heating thermometer (6), and a heating system (7); the mixing valve (4) has an a port, a b port, and a c port; the outlet of the hot water exchange pipe (2) is connected to the a port of the mixing valve (4) through the first gate valve (3); the c port of the mixing valve (4) is connected to the inlet of the heating system (7) through the heating water supply pump (5); and the heating thermometer (6) is installed in the working water circuit or the inlet water circuit of the heating system (7). The first three-way fitting (8) and the second gate valve (9); the first three-way fitting (8) has an inlet and two outlets. The inlet of the first three-way fitting (8) is connected to the outlet of the heating system (7). One outlet of the first three-way fitting (8) is connected to port b of the mixing valve (4). The other outlet of the first three-way fitting (8) is connected to the inlet of the hot water pipe (2) through the second gate valve (9). The fifth gate valve (20), the return water pump (18), and the return water thermometer (17) are provided. The outlet of the hot water storage tank (1) is connected to the inlet of the fifth gate valve (20), and the outlet of the fifth gate valve (20) is connected to both the external domestic hot water inlet and the inlet of the return water pump (18). The return water thermometer (17) is installed at the outlet of the return water pump (18). The second three-way valve (13), the fourth gate valve (15), and the third gate valve (12) are described. The second three-way valve (13) has two inlets and one outlet. One inlet of the second three-way valve (13) is connected to the outlet of the return water pump (18), and the other inlet of the second three-way valve (13) is connected to the outlet of the fourth gate valve (15). The outlet of the second three-way valve (13) is connected to the inlet of the hot water storage tank (1) through the third gate valve (12).

2. The integrated heat pump water heater with heating function according to claim 1, characterized in that... The outlet of the hot water storage tank (1) is located at the upper part of the hot water storage tank (1), and the inlet of the hot water storage tank (1) is located at the lower part of the hot water storage tank (1).

3. The integrated heat pump water heater with heating function according to claim 1, characterized in that... It also includes a drain valve (11); the drain outlet of the hot water storage tank (1) is connected to the outside through the drain valve (11).

4. The integrated heat pump water heater with heating function according to claim 1, characterized in that... It also includes a first check valve (14), and the fourth gate valve (15) is connected to another inlet of the second tee (13) through the first check valve (14).

5. The integrated heat pump water heater with heating function according to claim 1, characterized in that... It also includes a second check valve (16), through which the outlet of the return water pump (18) is connected to one inlet of the second tee (13).

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