Heat pump air conditioning system and method for quickly discharging liquid stored in gas-liquid separator

Abstract

The invention relates to a heat pump air conditioning system and a heat pump air conditioning method for quickly discharging liquid stored in a gas-liquid separator. The heat pump air conditioning system at least comprises a compressor and a gas-liquid separator, wherein a gas outlet of the gas-liquid separator is connected with a gas inlet of a compressor, the heat pump air conditioning system is characterized by further comprising an ejector, wherein a nozzle of the ejector is connected with a gas outlet of the compressor, a pressure expansion segment of the ejector is connected with the gas inlet of the compressor, and a suction chamber of the ejector is connected with a liquid outlet of the gas-liquid separator. High pressure gas discharged from the compressor enters the ejector to form low pressure in the ejector, so that refrigerant liquid in the gas-liquid separator can be sucked in the ejector, the refrigerant liquid is mixed with refrigerant gas to form pressure expansion in the ejector, and the refrigerant liquid is dispersed in the compressor. The heat pump air conditioning system provided by the invention can quickly discharge the refrigerant liquid in the gas-liquid separator to a circulating system of an air conditioner, thereby reducing the operation cost and improving the operation efficiency of a machine set.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to a heat pump air conditioning system and method for quickly discharging liquid accumulated in a gas-liquid separator. Background technique [0002] Air conditioners can be divided into cold-only type and heat pump type according to their functions. Cooling-only air conditioners can only cool, not heat, and are suitable for southern regions that do not need heating in winter. Heat pump air conditioners can perform cooling and heating, and are suitable for most areas in my country. Among them, the heat pump air conditioner is adopted by the majority of users because of its ability to cool and heat, and has a wider range of applications. Such as figure 1 As shown, the heat pump air conditioning system consists of an outdoor unit 100 and an indoor heat exchanger 200 connected to the outdoor unit 100. The main components of the outdoor unit 100 include a compressor 110, a gas-liquid ...

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Problems solved by technology

[0003] At present, in order to solve the common problems of the above-mentioned heat pump air conditioners, the industry generally adopts the method of increasing the refrigerant charge, but this will increase the cost of use and will not improve the energy efficiency of the air conditioner

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