CN2570709Y - Multifunctional heat pump unit - Google Patents

Abstract

The utility model relates to a combined heating and refrigerating system, particularly a multifunctional heat pump unit which is composed of a compressor, an evaporator, and an expansion valve. A sealed coolant circulating loop is composed of the compressor, the evaporator, the expansion valve, a condensing and evaporating two-purpose device, a high-pressure liquid storage tank, an air returning cylinder, an electromagnetic valve, and a non-return valve. The utility model has the advantages of simple and reasonable structural design, low cost, and small volume. The freezing water and the hot water can be supplied according to the requirement at any environment. The utility model can be used for a plurality of industries, such as hospital, hotels, restaurants, factories, greenhouses, cultivation farms, indoor pools, amphitheaters, large residential areas, etc.

Description

Multifunctional heat pump unit

(1) Technical field

The utility model relates to a combined heating and cooling system, in particular to a multifunctional heat pump unit composed of a compressor, an evaporator and an expansion valve.

(2) Background technology

Existing heat pumps can be divided into air-conditioning heat pumps and hot water heat pumps. Air-conditioning heat pumps and hot water heat pumps are further divided into air-source heat pumps and water-source heat pumps. Air-conditioning heat pumps can only choose cooling or heating, not both at the same time. The main function of hot water heat pump is to heat hot water, and the air or water absorbed by heat can also be used as air conditioner. It is completely discharged, so the heat pump cannot work, and the water source heat pump is the same. If only hot water is needed, and cold water is not required, the heat pump cannot work because there is no heat source and no way to absorb heat.

(3) Contents of the invention

Therefore, the purpose of this utility model is to provide a kind of utilizing the energy migration principle of the refrigeration system to overcome the deficiencies of air-conditioning heat pumps and hot water heat pumps. A multi-functional heat pump unit that supplies a large amount of cold water, or a large amount of hot water and cold water at the same time, or a small amount of hot water and a large amount of cold water, or a small amount of cold water and a large amount of hot water at the same time.

The purpose of this utility model is achieved in this way.

A multi-functional heat pump unit, including a compressor, an evaporator and an expansion valve. The outlet of the compressor (1) is provided with a three-way solenoid valve (2), and the two outlets of the three-way solenoid valve (2) are respectively connected to a Heat recovery device (3) and a condensing and evaporating dual-purpose device (4), the outlet of the heat recovery device (3) is provided with a two-way solenoid valve (5), and the two-way solenoid valve (5) is connected to a high-pressure liquid storage cylinder ( 6), the heat recovery device (3) is also provided with a heating water circuit (15), and a pipeline (7) is drawn on the path between the heat recovery device (3) and the second-way solenoid valve (5) to be connected to the three-way At the outlet of the electromagnetic valve (2) connected to the condensing and evaporating dual-purpose device (4), a three-way electromagnetic valve (8) is also provided between the three-way electromagnetic valve (2) and the condensing and evaporating dual-purpose device (4). , the condensing and evaporating device (4) is provided with a regulating fan (17), and the other end of the condensing and evaporating device (4) is also connected with the high-pressure liquid storage cylinder (6), and the condensing and evaporating device (4) An expansion valve (9) and a check valve (10) are arranged in parallel with the high-pressure liquid storage cylinder (6), and a two-way electromagnetic valve (11) is also led out on the high-pressure liquid storage cylinder (6), and the two-way electromagnetic valve The outlet of the valve (11) is connected to an expansion valve (12), and the outlet of the expansion valve (12) is connected to the evaporator (13). The evaporator (13) is provided with a chilled water circuit (16), and the evaporator The outlet of (13) is connected to a return cylinder (14), and the other outlet of the three-way solenoid valve (8) is also connected with the return cylinder (14), and the outlet of the return cylinder (14) is connected to the inlet of the compressor (1) connected.

The utility model has the advantages of simple and reasonable structural design, low cost and small size, and can supply frozen water and hot water on demand in any environment, and can be used in many industries, such as hospitals, hotels, restaurants, factories, greenhouses, planting farms, indoor Swimming pools, stadiums and large residential areas and other places.

(4) Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of embodiment 1;

Fig. 3 is the structural representation of embodiment 2;

Fig. 4 is the structural representation of embodiment 3;

Fig. 5 is the structural representation of embodiment 4;

Fig. 6 is a schematic structural diagram of embodiment 5.

(5) Specific implementation methods

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Referring to Fig. 1 , a multifunctional heat pump unit includes a compressor 1, an evaporator 13 and an expansion valve. The outlet of the compressor 1 is provided with a three-way solenoid valve 2, and the two outlets of the three-way solenoid valve 2 are respectively connected to a Heat recovery device 3 and a condensing and evaporating dual-purpose device 4, the outlet of heat recovery device 3 is provided with a two-way solenoid valve 5, the two-way solenoid valve 5 is connected to a high-pressure liquid storage cylinder 6, and a heat recovery device 3 is also provided with a heating The water circuit 15 draws a pipeline 7 on the path between the heat recovery device 3 and the two-way solenoid valve 5 to connect to the outlet of the three-way solenoid valve 2 connected to the condensing and evaporating dual-purpose device 4, and connects the three-way solenoid valve 2 There is also a three-way solenoid valve 8 between the condensing and evaporating device 4, the other end of the condensing and evaporating device 4 is also connected to the high-pressure liquid storage cylinder 6, and a fan 17 is also provided in the condensing and evaporating device 4 , and an expansion valve 9 and a check valve 10 are arranged in parallel between the condensing and evaporating dual-purpose device 4 and the high-pressure liquid storage cylinder 6, and a two-way solenoid valve 11 is also drawn out on the high-pressure liquid storage cylinder 6, and the two-way solenoid valve The outlet of 11 is connected to an expansion valve 12, and the outlet of the expansion valve 12 is connected to the evaporator 13. The evaporator 13 is provided with a chilled water circuit 16, and the outlet of the evaporator 13 is connected to a return cylinder 14, and the three-way Another outlet of the electromagnetic valve 8 is also connected with the return cylinder 14, and the outlet of the return cylinder 14 is connected with the inlet of the compressor 1.

Example 1, in combination with Figure 2, when only a large amount of hot water is supplied, the low-pressure refrigerant is compressed into high-temperature and high-pressure gas by the compressor 1, and sent to the heat recovery device 3 through the three-way solenoid valve 2, and the cold water is sent to the In the heat recovery device 3, the cold water absorbs heat and heats up for use, and the refrigerant changes from high temperature and high pressure to medium temperature and high pressure liquid refrigerant, which is sent to the high pressure liquid storage tank 6 through the two-way solenoid valve 5, and then sent to the expansion valve 9 by the high pressure liquid storage tank 6 After decompression, the liquid refrigerant absorbs the heat of the air through the condensing and evaporating dual-purpose device 4 and vaporizes, then passes through the three-way solenoid valve 8 to return to the cylinder 14 to the compressor 1 to start the next process.

Embodiment 2, in combination with Fig. 3, only a large amount of cold water is supplied, the low-pressure refrigerant is compressed into a high-temperature and high-pressure gas by the compressor 1, and then sent to the condensing and evaporating dual-purpose device 4 through the three-way solenoid valve 2 and the three-way solenoid valve 8, and the cold air The fan 17 blows through the condensing and evaporating dual-purpose device 4, where the refrigerant is liquefied, and then passes through the check valve 10 to the high-pressure liquid storage cylinder 6, passes through the two-way solenoid valve 11 to the expansion valve 12 for decompression, and then is sent to the evaporator Gasification in 13 absorbs the heat of the chilled water in the chilled water circuit 16, and the chilled water produced is for use, and the gaseous refrigerant is sent back to the cylinder 14 to the compressor 1 to start the next process.

Embodiment 3, in combination with Figure 4, in the case of supplying a large amount of hot water and cold water at the same time, the low-pressure refrigerant is compressed into high-temperature and high-pressure gas by the compressor 1, and then sent to the heat recovery device 3 through the three-way solenoid valve 2, and the cold water is heated by the heating water circuit 15 Send it to the heat recovery device 3, the cold water absorbs heat and heats up to become hot water for use, the gaseous refrigerant changes from high temperature and high pressure to medium temperature and high pressure liquid refrigerant and sends it to the high pressure liquid storage tank 6 through the second solenoid valve 5, and then the high pressure liquid storage tank 6. It is sent to the expansion valve 12 for decompression through the two-way solenoid valve 11, and the liquid refrigerant is sent to the evaporator 13 to evaporate and absorb the heat of the frozen water in the frozen water circuit 16, and the frozen water produced is for use, and the gaseous refrigerant is returned to Cylinder 14 to compressor 1 start the next process.

Example 4, in combination with Figure 5, when a small amount of hot water and a large amount of cold water are supplied at the same time, the low-pressure refrigerant is compressed into high-temperature and high-pressure gas by the compressor 1, and then sent to the heat recovery device 3 through the three-way solenoid valve 2, and the cold water passes through the heating water circuit 15 It is sent to the heat recovery device 3, and the cold water absorbs heat to heat up for use. Because the heat recovery device 3 does not need to completely absorb all the heat energy that needs to be dissipated, part of the heat energy is sent to the condensation and evaporation dual-purpose device 4 through the pipeline 7 and exhausted by the fan 17. Into the atmosphere, the gaseous refrigerant changes from high temperature and high pressure to medium temperature and high pressure liquid refrigerant, which is sent to the high pressure liquid storage cylinder 6 through the check valve 10, and then sent to the expansion valve 12 for decompression by the high pressure liquid storage cylinder 6 through the second solenoid valve 11. The liquid refrigerant is sent to the evaporator 13 to evaporate and absorb the heat of the chilled water in the chilled water circuit 16, and the chilled water produced is for use, and the gaseous refrigerant is returned to the compressor 1 through the cylinder 14 to start the next process.

Example 5, in combination with Figure 6, when a small amount of cold water and a large amount of hot water are supplied at the same time, the low-pressure refrigerant is compressed into a high-temperature and high-pressure gas by the compressor 1, and then sent to the heat recovery device 3 through the three-way solenoid valve 2, and the cold water passes through the heating water circuit 15 The cold water is sent to the heat recovery device 3, and the cold water absorbs heat to heat up for use, and the gaseous refrigerant changes from high temperature and high pressure to medium temperature and high pressure liquid refrigerant and is sent to the high pressure liquid storage tank 6 through the second solenoid valve 5, so only a small amount of cold water needs to be evaporated The device 13 cannot completely absorb heat and evaporate the liquid refrigerant, so the refrigerant travels in two paths here, one path of refrigerant is sent from the high-pressure liquid storage cylinder 6 to the expansion valve 12 for decompression through the second solenoid valve 11, and the refrigerant is sent to the evaporator 13 for evaporation Absorb the heat of a small amount of chilled water in the chilled water circuit 16, and the produced chilled water is used. The gaseous refrigerant enters the cylinder 14, and the other refrigerant enters the condensing and evaporating dual-purpose device 4 through the expansion valve 9 to absorb the heat in the atmosphere. Then go through the three-way solenoid valve 8 to return to the cylinder 14 and merge with another gaseous refrigerant to the compressor 1 to start the next process.

Claims (1)

1. A multifunctional heat pump unit, comprising a compressor, an evaporator and an expansion valve, characterized in that: the outlet of the compressor (1) is provided with a three-way solenoid valve (2), and the three-way solenoid valve (2) The two outlets of each are connected to a heat recovery device (3) and a condensing and evaporating dual-purpose device (4). The outlet of the heat recovery device (3) is provided with a two-way solenoid valve (5), and the two-way solenoid valve (5) is connected to A high-pressure liquid storage cylinder (6), a heating water circuit (15) is also provided on the heat recovery device (3), and a pipeline ( 7) Connect to the outlet of the three-way solenoid valve (2) connected to the condensing and evaporating dual-purpose device (4), and a three-way solenoid valve (2) and the condensing and evaporating dual-purpose device (4) are also provided. solenoid valve (8), the condensing and evaporating dual-purpose device (4) is provided with a regulating fan (17), and the other end of the condensing and evaporating dual-purpose device (4) is also connected with the high-pressure liquid storage cylinder (6), and the An expansion valve (9) and a check valve (10) are connected in parallel between the dual-purpose device (4) and the high-pressure liquid storage cylinder (6), and a two-way electromagnetic valve ( 11), the outlet of the two-way solenoid valve (11) is connected to an expansion valve (12), the outlet of the expansion valve (12) is connected to the evaporator (13), and a chilled water circuit is provided on the evaporator (13) (16), the outlet of the evaporator (13) is connected to a return cylinder (14), and the other outlet of the three-way solenoid valve (8) is also connected to the return cylinder (14), and the outlet of the return cylinder (14) is connected to the compressor The inlet of machine (1) is connected.

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