CN201652663U - Heat recovery heat pump air conditioning system - Google Patents

Abstract

The utility model discloses a heat recovery heat pump air-conditioning system, which comprises a compressor, a gas-liquid separator, a four-way reversing valve, a condenser, a refrigeration throttling device, an evaporator, etc., and the main circuit is formed by connecting each part with a pipeline. ; The system also includes a heat recovery device, heat exchanger, hot water pump, cold water source, domestic water area, etc., each part is also connected by pipelines, and the heat exchanger is placed in the heat recovery device. This structure is adopted in the heat pump air-conditioning system, because the high temperature and high pressure gas flows in the heat recovery device, and the water from the hot water pump to the heat exchanger through the pipeline is cold water, so the cold water in the heat exchanger exchanges heat with the high temperature and high pressure gas , so that the water output by the heat exchanger is hot water, which can be used as hot water for domestic use, effectively utilizing heat energy recovery.

Description

Heat recovery heat pump air conditioning system

technical field

The utility model relates to a heat pump air conditioning system, in particular to a heat pump air conditioning system with a heat recovery structure.

Background technique

As shown in Figure 1, a traditional heat pump air-conditioning system includes a compressor 1, a gas-liquid separator 2, a four-way reversing valve 3, a condenser 4, an evaporator 5, and a cooling throttling device 6. The connections form the main loop. In the cooling process of the heat pump air-conditioning system, the compressor 1 sucks the refrigerant vapor in the evaporator 5 through the compressor suction port 11, compresses it into high-temperature and high-pressure refrigerant vapor, and then sends it out through the compressor outlet 12 to Condenser 4, and the condenser 4 converts the high-temperature and high-pressure refrigerant vapor into a low-temperature and low-pressure gas through heat exchange, and then flows to the evaporator 5 . During the heating process of the heat pump air-conditioning system, the compressor 1 sucks the refrigerant vapor in the condenser 4 through the compressor suction port 11, compresses it into high-temperature and high-pressure refrigerant vapor, and then sends it out through the compressor outlet 12. To the evaporator 5 , the evaporator 5 undergoes heat exchange with the high-temperature and high-pressure refrigerant vapor to form a low-temperature and low-pressure gas, and then flows to the condenser 4 . During the heating and cooling process, the high-temperature and high-pressure refrigerant vapor will release a large amount of heat energy after it comes out of the compressor outlet 12. This large amount of heat energy will exchange heat with the cold air during the flow, and then be discharged into the air, causing great damage. Heat energy is wasted, resulting in low utilization rate of heat energy.

Utility model content

A technical problem to be solved by the utility model is to provide a heat recovery heat pump air conditioning system, which can effectively utilize a large amount of heat energy released by high-temperature and high-pressure refrigerant vapor.

In order to solve its technical problems, the heat recovery heat pump air conditioning system of the present invention includes a compressor, a gas-liquid separator, a four-way reversing valve, a condenser, a refrigeration throttling device, an evaporator, etc., and the various parts are connected by pipelines The main circuit is formed, which is characterized in that: the system also includes a heat recovery device, a heat exchanger, a hot water pump, a cold water source, a domestic water area, etc., the heat exchanger is placed in the heat recovery device, and one end of the heat recovery device is connected to the air outlet of the compressor Pipeline connection, the other end is connected to the four-way reversing valve pipeline, auxiliary outlet and auxiliary inlet are set on the heat recovery unit, the water inlet of the hot water pump is connected to the cold water source pipeline, and the water outlet of the hot water pump is connected to the pipeline of the heat exchanger through the auxiliary inlet of the heat recovery unit Connection, the heat exchanger is connected to the pipeline of the domestic water area through the auxiliary outlet of the heat recovery unit.

Further, the auxiliary inlet of the heat recovery device is arranged near the end where the heat recovery device is connected to the four-way reversing valve, and the auxiliary outlet of the heat recovery device is arranged near the end where the heat recovery device is connected to the air outlet of the compressor.

Further, there is at least one heat recovery unit and at least one heat exchanger, and the heat recovery units correspond to the heat exchangers one by one.

Further, when there are more than two sets of heat exchangers, each set of heat exchangers is connected in parallel.

With the heat recovery heat pump air conditioning system of the utility model, a heat recovery device is installed between the air outlet of the compressor and the four-way reversing valve. The heat exchanger is connected to the pipeline, the heat exchanger is connected to the pipeline of the domestic water area through the auxiliary outlet of the heat recovery unit, and the heat exchanger is placed in the heat recovery unit. Since the high-temperature and high-pressure gas flows in the heat recovery device, the cold water in the heat exchanger exchanges heat with the high-temperature and high-pressure gas, so that the water flowing out of the heat exchanger is hot water, which can be used as domestic hot water and can be effectively used heat recovery.

Description of drawings

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic diagram of a heat pump air conditioning system in the prior art.

Fig. 2 is a schematic diagram of the heat recovery heat pump air conditioning system of the present invention.

Fig. 3 is a schematic diagram of another embodiment of the heat recovery heat pump air conditioning system of the present invention.

Parts, parts and numbers in the figure: 1-compressor, 2-gas-liquid separator, 3-four-way reversing valve, 4-condenser, 5-evaporator, 6-refrigeration throttling device, 7-hot water pump , 8-heat recovery device, 9-auxiliary inlet, 10-auxiliary outlet, 11-compressor suction port, 12-compressor gas outlet, 13-cold water source, 14-living water area, 15-heat exchanger.

Detailed ways

As shown in Figure 2, the heat recovery heat pump air conditioning system of the present invention includes a compressor 1, a gas-liquid separator 2, a four-way reversing valve 3, a condenser 4, an evaporator 5, a cooling throttling device 6, and a hot water pump 7. Heat recovery device 8, auxiliary inlet 9, auxiliary outlet 10, cold water source 13, domestic water area 14, heat exchanger 15, etc., in which compressor 1, gas-liquid separator 2, four-way reversing valve 3, condenser 4. The evaporator 5, refrigeration throttling device 6, heat recovery device 8 and other parts are connected by pipelines to form a main circuit; cold water source 13, hot water pump 7, heat exchanger 15, domestic water area 14 and other pipelines are connected, and heat exchange The device 15 is arranged in the heat recovery device 8 . A heat recovery device 8 is arranged between the outlet of the compressor 1 and the four-way reversing valve 3, the water suction port of the hot water pump 7 is connected to the cold water source 13 pipeline, and the water outlet of the hot water pump 7 is connected to the heat recovery device 8 through the auxiliary inlet 9 of the heat recovery device 8. The exchanger 15 is connected to the pipeline, and the heat exchanger 15 is connected to the pipeline of the domestic water area 14 through the auxiliary outlet 10 of the heat recovery device 8, because the heat recovery device 8 flows high-temperature and high-pressure gas, and the water from the hot water pump 7 is cold water , so the cold water in the heat exchanger 15 exchanges heat with the high-temperature and high-pressure gas, so that the water flowing out of the pipeline is hot water, which can be used as domestic hot water, effectively utilizing heat energy recovery.

As an improvement to the above specific implementation, the heat recovery device is a finned heat exchanger or a shell and tube heat exchanger or a plate heat exchanger or a sleeve heat exchanger or a coaxial heat exchanger or a tank heat exchanger Heater or flash evaporator.

As an improvement to the specific implementation above, as shown in Figure 3, there are at least one heat recovery device, and each heat recovery device is connected in parallel, and the heat exchangers correspond to the heat recovery devices one by one, and are respectively placed in the corresponding heat recovery devices Inside.

The above are just some principles of the heat recovery heat pump air-conditioning system of the present utility model, and are not intended to limit the present utility model to the specific structure, method and scope of application shown and described, so all corresponding modifications that may be used And equivalents, all belong to the scope of protection applied for by the utility model.

Claims (4)

1. heat recovery heat pump air conditioner system, comprise compressor, gas-liquid separator, four-way change-over valve, condenser, refrigeration throttling device, evaporimeter etc., be connected to form major loop by pipeline between each part, it is characterized in that: this system also comprises heat regenerator, heat exchanger, heat-exchanger pump, cold water source, domestic water district etc., heat exchanger places in the heat regenerator, heat regenerator one end is connected with the compressor outlet pipeline, the other end is connected with the four-way change-over valve pipeline, pilot outlet and secondary inlet are set on the heat regenerator, the heat-exchanger pump water inlet is connected with the cold water source pipeline, the heat-exchanger pump delivery port is connected with the heat exchanger pipeline through the heat regenerator secondary inlet, and heat exchanger is connected with domestic water district pipeline through the heat regenerator pilot outlet.

2. heat recovery heat pump air conditioner according to claim 1 system, it is characterized in that: the heat regenerator secondary inlet is arranged on an end that links to each other with four-way change-over valve near heat regenerator, and the heat regenerator pilot outlet is arranged on an end that links to each other with compressor outlet near heat regenerator.

3. heat recovery heat pump air conditioner according to claim 1 system is characterized in that: described heat regenerator at least one, described heat exchanger at least one, and heat regenerator is corresponding one by one with heat exchanger.

4. heat recovery heat pump air conditioner according to claim 3 system is characterized in that: described heat exchanger is more than two groups the time, and each is organized between the heat exchanger and is connected in parallel.

Images