Steam compression type circulating system for driving compressor to achieve waste heat defrosting through pulsating heat pipe

Abstract

The embodiment of the invention provides a steam compression type circulating system for driving a compressor to achieve waste heat defrosting through a pulsating heat pipe. The system comprises the compressor 101, a condenser 102, a throttle valve 103 and an evaporator 104. The compressor 101 is connected with the condenser 102, the condenser 102 is connected with the throttle valve 103, the throttle valve 103 is connected with the evaporator 104, and the evaporator 104 is connected with the compressor 101. The system further comprises the pulsating heat pipe 105, the evaporation section 105-3 of the pulsating heat pipe is wound around the surface of the compressor 101 and an outlet pipeline of the compressor 101, the condensation section 105-1 of the pulsating heat pipe 105 is wound around the surface of the evaporator 104, and a middle connecting pipeline of the evaporation section and the condensation section of the pulsating heat pipe 105 is a heat insulating section 105-2 of thepulsating heat pipe. The surface of the evaporator is defrosted through waste heat of the compressor, the heat exchange efficiency of the evaporator is improved, thus, the performance of the steam compression type circulating system is improved, the compressor temperature and the condensation temperature can be effectively reduced in the defrosting process, wasted work of the compressor is reduced, lubricating oil is protected, and it is guaranteed that the system can efficiently run in the defrosting process.

Description

technical field [0001] The invention relates to the technical field of refrigeration and heat pumps, in particular to a vapor compression cycle system in which a pulsating heat pipe drives compressor waste heat to defrost. Background technique [0002] In refrigeration and air-conditioning systems, the problem of frosting has been paid attention to by researchers at home and abroad. When the surface temperature of the heat exchanger is lower than the condensation point of water and the dew point of air, frosting will occur in the area where the cold surface of the heat exchanger is in contact with the water vapor in the air. The formation of frost layer is related to surface temperature and relative humidity. The accumulation of frost layer will damage the heat exchanger and other components. At the same time, as the thickness of the frost layer increases, the thermal resistance of the heat exchanger surface will increase, which will reduce the overall heat transfer capacit...

AI Technical Summary

Problems solved by technology

However, there are few reports on the application of pulsating heat pipes in vapor compression cycle systems.

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