Compressor as well as air conditioning system and heat-pump water heater with same

Abstract

The invention provides a compressor as well as an air conditioning system and a heat-pump water heater with the same. The compressor provided by the invention comprises a low-pressure air cylinder and a high-pressure cylinder which are arranged in series, as well as a mixing cavity arranged between the low-pressure air cylinder and a high-pressure cylinder in series, wherein the mixing cavity is internally provided with a liquid spraying device. The invention also provides the air conditioning system and the heat-pump water heater with the compressor. According to the compressor as well as the air conditioning system and the heat-pump water heater with the same, the mixing cavity is arranged between the low-pressure air cylinder and a high-pressure cylinder in series and is internally provided with a liquid spraying structure, a condensed refrigerating fluid with high temperature and middle pressure in the low-pressure air cylinder is discharged in the mixing cavity so as to be mixed with a refrigerating fluid of a gas-liquid two-phase mixed state and sprayed by the liquid spraying structure when in operation, the liquid state refrigerating fluid absorbs heat so as to gasify, the gas temperature of the refrigerating fluid with the high temperature and middle pressure is reduced, the suction temperature of the high-pressure cylinder is reduced, and the exhaust gas temperature of the compressor is effectively reduced.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to a compressor, an air conditioning system having the same, and a heat pump water heater. Background technique [0002] At present, the two main refrigerants used in the air-conditioning field are R22 and R410A. R22 has a destructive effect on the atmospheric ozone layer and is being phased out. R410A has a high greenhouse effect (GWP about 2100) and will also be phased out. The ODP of R32 (difluoromethane) is 0, the GWP is low (about 675), and the system COP is high. It is considered to be one of the refrigerants that have the potential to replace R22 and R410A. However, R32 has a high exhaust temperature, which reduces the reliability of the compressor and limits the application range of R32 to a certain extent. Contents of the invention [0003] The present invention aims to provide a compressor for reducing the discharge temperature of the compressor, an air-conditioning syst...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a compressor for reducing the discharge temperature of the compressor, an air-conditioning system and a heat pump water heater with it, so as to solve the problem of high discharge temperature of R32 and increase the use range of R32

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