CN101806516B - A heat pump air conditioner water heater - Google Patents

Abstract

A heat pump air-conditioning water heater comprises a compressor, a four-way reversing valve, an outdoor heat exchanger, an indoor heat exchanger, a first hot water heat exchanger and a hot water tank; consists of the following components: the first hot water heat exchanger is communicated with the hot water tank through a first water pump to form a water circulation loop; the first hot water heat exchanger is communicated with the hot water tank through a first water pump to form a water circulation loop; a refrigeration circuit; the high-temperature water heat exchanger and the second water pump are also included; the high-temperature water heat exchanger is connected between the compressor and the D end of the four-way reversing valve, and a second water pump is arranged on the pipelines of the high-temperature water heat exchanger and the hot water tank. By adopting the structure, the machine of the single compressor system can simultaneously have the following functions: the hot water, heating, hot water + heating, refrigeration, hot water + refrigeration, dehumidification backheating, hot water + dehumidification backheating can also realize high temperature hot water.

Description

A heat pump air conditioner water heater

technical field

The invention relates to a heat pump air conditioner water heater.

Background technique

At present, in the existing technology, heat pump water heaters or combined cooling and heating air conditioners include compressors, four-way reversing valves, outdoor heat exchangers, expansion valves, and indoor heat exchangers. Hot water is provided. The problem is that the heat pump air conditioning system including one compressor can only realize one or several of the following functions: hot water, heating and heating, hot water + heating and heating, cooling, hot water + cooling, dehumidification and heat recovery , Hot water + dehumidification and heat recovery cannot achieve all functions.

Contents of the invention

The purpose of the present invention is to provide a heat pump air-conditioning water heater, which can simultaneously have the following functions: hot water, heating and heating, hot water + heating and heating, cooling, hot water + cooling, dehumidification and heating, hot water + dehumidification Reheat. In this way, the comprehensive utilization of energy can be realized to the greatest extent, and the purpose of energy saving and environmental protection can be achieved.

The present invention is achieved as follows: a heat pump air-conditioning water heater, including a compressor, a four-way reversing valve, an outdoor heat exchanger, an indoor heat exchanger, a first hot water heat exchanger and a hot water tank; the four-way reversing valve The D terminal of the four-way reversing valve, the first hot water heat exchanger, the first one-way valve, the first electromagnetic valve, the first expansion valve, the inlet of the indoor heat exchanger and the compressor are communicated with the compressor. The air end constitutes a hot water-refrigeration circuit, and the first hot water heat exchanger communicates with the hot water tank through the first water pump to form a water circulation circuit; the C end of the four-way reversing valve, the first hot water heat exchanger, and the first one-way valve, the second solenoid valve, the second expansion valve, the outdoor heat exchanger, the E-S end of the four-way reversing valve and the intake end of the compressor constitute a hot water circuit, and the first hot water heat exchanger communicates with the heat pump through the first water pump. The water tank is connected to form a water circulation circuit; the E end of the four-way reversing valve, the outdoor heat exchanger, the second one-way valve, the second solenoid valve, the first solenoid valve, the first expansion valve, the indoor heat exchanger and the compressor constitute Refrigeration circuit; its special feature is that it also includes a high-temperature water heat exchanger and a second water pump; the high-temperature water heat exchanger is connected between the compressor and the D end of the four-way reversing valve, and the high-temperature water heat exchanger and the A second water pump is arranged on the pipeline of the hot water tank.

The heat pump air-conditioning water heater described above is special in that it also includes an indoor hot water heat exchanger; the indoor hot water heat exchanger communicates with the hot water tank;

The above-mentioned heat pump air conditioner water heater is special in that there is a third water pump and a two-way electric valve on the pipeline connecting the indoor hot water heat exchanger and the hot water tank.

The heat pump air conditioner water heater is special in that it also includes a three-way electric valve;

The water inlet end of the three-way electric valve is connected with the hot water tank, and the water outlet end is connected with the water inlet end of the indoor dehumidification heat exchanger, and the water outlet end of the indoor dehumidification heat exchanger is connected with the water inlet end of the first hot water heat exchanger; The other water outlet end of the three-way electric valve communicates with the water inlet end of the first hot water heat exchanger.

A heat pump air-conditioning water heater of the present invention, due to the adoption of such a structure, a machine with a single compressor system can simultaneously have the following functions: hot water, heating and heating, hot water + heating and heating, cooling, hot water + cooling, Dehumidification and heat recovery, hot water + dehumidification and heat recovery, can also achieve high temperature hot water.

Description of drawings

Fig. 1 is a schematic diagram of the first embodiment of the present invention.

Fig. 2 is a schematic diagram of a second embodiment of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Example 1

As shown in Figure 1, a heat pump air conditioner water heater includes a compressor 1, a four-way reversing valve 2, an outdoor heat exchanger 3, an indoor heat exchanger 4, a first hot water heat exchanger 51 and a hot water tank 6; The D end of the four-way reversing valve 2 communicates with the compressor 1, the C end of the four-way reversing valve 2, the first hot water heat exchanger 51, the first one-way valve 81, the first solenoid valve 91, and the first expansion valve 101. The indoor heat exchanger 4 and the intake end of the compressor 1 form a hot water-cooling circuit, and the first hot water heat exchanger 51 communicates with the hot water tank 6 through the first water pump to form a water circulation circuit;

C end of four-way reversing valve 2, first hot water heat exchanger 51, first one-way valve 81, second solenoid valve 92, second expansion valve 102, outdoor heat exchanger 3, four-way reversing valve 2 The E-S end of the compressor 1 and the intake end of the compressor 1 form a hot water circuit, and the first hot water heat exchanger 51 communicates with the hot water tank 6 through the first water pump 111 to form a water circulation circuit;

E end of four-way reversing valve 2, outdoor heat exchanger 3, second check valve 82, second solenoid valve 92, first solenoid valve 91, first expansion valve 101, indoor heat exchanger 4 and compressor 1 Form a refrigeration circuit;

Also includes a high-temperature water heat exchanger 52 and a second water pump 112; the high-temperature water heat exchanger 52 is connected between the compressor 1 and the D end of the four-way reversing valve 2, and the high-temperature water heat exchanger 52 and the hot water tank There is second water pump 112 on the pipeline of 6. The setting of the high-temperature water heat exchanger 52 can generate high-temperature hot water in the hot water-refrigeration circuit, the hot water circuit and the refrigeration circuit.

Example 2

As shown in Figure 1, further improvement on the basis of Embodiment 1: it also includes an indoor hot water heat exchanger 53; the indoor hot water heat exchanger 53 communicates with the hot water tank 6;

There is a third water pump 113 and a two-way electric valve 12 on the pipeline connecting the indoor hot water heat exchanger 53 with the hot water tank 6 .

The C end of the four-way reversing valve 2, the first hot water heat exchanger 51, the first one-way valve, the second solenoid valve, the second expansion valve, the outdoor heat exchanger 3, and the E-S end of the four-way reversing valve 2 It forms a hot water circuit with the air inlet of the compressor 1, and the first hot water heat exchanger 51 communicates with the hot water tank 6 through the first water pump 111 to form a water circulation circuit; the third water pump 113 and the two-way electric valve 12 work, and the indoor heat The water heat exchanger 53 operates to form a hot water-heating mode.

The C end of the four-way reversing valve 2, the first hot water heat exchanger 51, the first one-way valve, the first solenoid valve, the first expansion valve, the indoor heat exchanger 4 and the compressor 1 form a hot water-cooling circuit , the third water pump 113 and the two-way electric valve 12 work, and the indoor hot water heat exchanger 53 works, forming a dehumidification and heat recovery mode. At this time, the indoor heat exchanger 4 and the indoor hot water heat exchanger 53 work at the same time. After the indoor air is cooled and dehumidified by the indoor heat exchanger 4, it is then reheated by the indoor hot water heat exchanger 53 to achieve the purpose of dehumidification and heat recovery. .

As shown in Figure 2, as another embodiment in Example 2: it also includes a three-way electric valve 7;

The water inlet end of the three-way electric valve 7 communicates with the hot water tank 6, and the water outlet end communicates with the water inlet end of the indoor hot water heat exchanger 53, and the water outlet end of the indoor hot water heat exchanger 53 is the first hot water heat exchanger. The water inlet end of 51 is connected; the other water outlet end of the three-way electric valve 7 is connected with the water inlet end of the first hot water heat exchanger 51 .

What has been described above are only preferred embodiments of the present invention. It should be noted that, for those skilled in the art, some improvements and modifications can be made without departing from the principle of the present invention, which are also regarded as the protection scope of the present invention.

Claims (3)

1. a heat pump air-conditioner/water heater comprises compressor, four-way change-over valve, outdoor heat exchanger, indoor heat exchanger, first hot water heat exchanger and hot water; The D end of four-way change-over valve is communicated with compressor, the inlet end of C end, first hot water heat exchanger, first check valve, first magnetic valve, first expansion valve, indoor heat exchanger and the compressor of four-way change-over valve constitutes hot water-refrigerating circuit, and first hot water heat exchanger is communicated with the formation water-flow circuit by first water pump with hot water; The E-S end of the C end of four-way change-over valve, first hot water heat exchanger, first check valve, second magnetic valve, second expansion valve, outdoor heat exchanger, four-way change-over valve and the inlet end of compressor constitute hot-water return, and first hot water heat exchanger is communicated with the formation water-flow circuit by first water pump with hot water; The E end of four-way change-over valve, outdoor heat exchanger, second check valve, second magnetic valve, first magnetic valve, first expansion valve, indoor heat exchanger and compressor constitute refrigerating circuit; It is characterized in that: also comprise a high-temperature water heat exchanger and one second water pump;

The high-temperature water heat exchanger is connected between the D end of compressor and four-way change-over valve, and second water pump is arranged on the pipeline of high-temperature water heat exchanger and hot water; Also comprise an indoor hot water heat exchanger; Indoor hot water heat exchanger is communicated with hot water.

2. a kind of heat pump air-conditioner/water heater according to claim 1 is characterized in that: on indoor hot water heat exchanger and the pipeline that hot water is communicated with the 3rd water pump and two logical motor-driven valves are arranged.

3. a kind of heat pump air-conditioner/water heater according to claim 1 is characterized in that: also comprise an electric three-way valve;

The water inlet end of electric three-way valve is communicated with hot water, a water side is communicated with the water inlet end of indoor hot water heat exchanger, and the water side of indoor hot water heat exchanger is communicated with the water inlet end of first hot water heat exchanger; Another water side of electric three-way valve is communicated with the water inlet end of first hot water heat exchanger.

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