Heat pump system and air conditioner

Abstract

The invention belongs to the field of air conditioners, and particularly relates to a heat pump system and an air conditioner. The heat pump system and the air conditioner aim at solving the problems that a refrigerant is not evenly distributed in an evaporator, the evaporation temperature of the evaporator is relatively low, and the refrigerating performance of a unit is poor. In order to achieve the purpose, the heat pump system comprises a compressor, a first heat exchanger and a second heat exchanger, the compressor, the first heat exchanger and the second heat exchanger sequentially communicate with one another, a refrigerant distribution device is arranged between the first heat exchanger and the second heat exchanger, the refrigerant distribution device comprises a first gas-liquid separator, and a gas-liquid delivering port, a gas delivering port and a liquid delivering port of the first gas-liquid separator communicate with the second heat exchanger. According to the heat pump system, the circumstance that the refrigerant is unevenly distributed in the second heat exchanger, and consequently flow deflection is caused is avoided, and therefore the problem that during refrigerating, the liquid refrigerant in the second heat exchanger is not evenly distributed is solved, the evaporation temperature of the second heat exchanger is increased, and the refrigerating capacity and the refrigerating efficiency of the heat pump system are improved.

Description

Technical field[0001]The present invention belongs to the technical field of air conditioners, and specific relates to a heat pump system and an air conditioner.Background technique[0002]When the air-cooled evaporator is applied to the air conditioning system, the amount of refrigerant within the system can reduce the volume volume in the system and reduce the cost of the unit. However, the dry evaporator is generally relatively low, resulting in poor cooling performance of the unit. The main reason is that the refrigerant is dispensed uneven in the evaporator, causing too much liquid refrigerant in a plurality of flow paths in the heat exchanger, while the liquid refrigerant in the circuit in other parts is too small. Liquid refrigerant distribution has more circuit after heat exchange after heat exchange, the liquid refrigerant cannot be completely evaporated, resulting in low inhalation of the unit. In order to solve this problem, then the expansion valve is required to reduce th...

AI Technical Summary

Problems solved by technology

[0005] In view of the uneven distribution of the refrigerant in the evaporator in the prior art, the relatively low evaporation temperature of the evaporator, and the poor refrigeration performance of the unit, the existing technical solution attempts to add a distributor and throttling the expansion valve. The refrigerant of the gas-liquid two-phase flow directly enters the shell-and-tube heat exchanger and then distributes it to each circuit in the heat exchanger through a distributor to solve the problem, but it is not suitable for large-volume heat exchangers due to the liquid separation effect The improvement of refrigeration performance is small due to poor cooling performance. The present invention provides a heat pump system, including a compressor, a first heat exchanger, and a second heat exchanger. The compressor, the first heat exchanger, and the The second heat exchangers are connected in sequence, and a refrigerant distribution device is provided between the first heat exchanger and the second heat exchanger, and the refrigerant distribution device includes a first gas-liquid separator, and the first gas-liquid The gas-liquid delivery port of the separator communicates with the first delivery port of the first heat exchanger, and the gas delivery port of the first gas-liquid separator communicates with the second delivery port of the second heat exchanger, so The liquid delivery port of the first gas-liquid separator communicates with the third delivery port of the second heat exchanger

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