Steam compressing-jet coupling refrigeration circulating device and method

Abstract

The invention discloses a steam compressing-jet coupling refrigeration circulating device and method. According to the steam compressing-jet coupling refrigeration circulating device and method, heat is released by means of exhaust gas of a refrigeration compressor. The steam compressing-jet coupling refrigeration circulating device comprises a compressor, a generator, a condenser, a throttling valve, a gas-liquid separator, an evaporator, an ejector, a liquid booster pump, a liquid level controller, an electromagnetic valve, a pressure sensor and the like. According to the circulating system, a condensed saturated liquid refrigerant delivered into the generator through the booster pump is heated by means of superheated steam coming out of an exhaust port of the refrigeration compressor, saturated gas under the generation pressure is generated, and flash evaporation gas separated out by the gas-liquid separator after the saturated gas is used ejecting and throttling is used as working steam of the ejector; in this way, the situation that the flash evaporation gas enters the evaporator, and consequentially the limited heat exchange area of the evaporator cannot be well used is avoided, the gas transmitting amount of the compressor is definitely reduced on the premise that the refrigerating capacity is not changed, and thus power consumption of the compressor is reduced.

Description

technical field [0001] The invention relates to a vapor compression-jet coupled refrigeration cycle system utilizing the exhaust sensible heat of a refrigeration compressor, which can effectively improve the heat transfer coefficient of an evaporator, reduce the power consumption of a compressor, and thereby increase the refrigeration coefficient. Background technique [0002] In the traditional compression refrigeration cycle, the liquid refrigerant cooled and condensed by the condenser will flash out gaseous refrigerant when throttling, and this part of gaseous refrigerant will not only not generate cooling capacity in the evaporator after entering the evaporator, but will also occupy The heat transfer area of ​​the evaporator affects the evaporation of the liquid refrigerant, thereby reducing the heat transfer efficiency and cooling capacity of the evaporator. At the same time, this part of the low-pressure gas that does not produce cooling capacity will be sucked into the...

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Problems solved by technology

[0002] In the traditional compression refrigeration cycle, the liquid refrigerant cooled and condensed by the condenser will flash out gaseous refrigerant when throttling, and this part of gaseous refrigerant will not only not generate cold energy in the evaporator after entering the evaporator, but will also occupy The heat trans...

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