Device for testing side performance of air cooler refrigerant for pump feed flow type ammonia refrigerating plant

Abstract

The invention relates to a refrigerant side performance tester of an air cooler used for pump liquid supply type ammonia refrigerator, which solves the problem of no appropriate testing equipment on the refrigerant side of prior gravity liquid supply type and ammonia pump liquid supply type air coolers which are in great use. The invention is provided with a gas-liquid separator, a gas superheater, a gas communication pipe between the gas superheater and a low-pressure circulating liquid storage cylinder, a liquid communication pipe between the gas-liquid separator and the low-pressure circulating storage cylinder, a front pressure measuring point of a gas refrigerant flow meter, a front temperature measuring point of the gas refrigerant flow meter, a gas refrigerant flow measuring point, etc., and solves the test difficulty that the machine outlet is under the gas-liquid two-phase state of air coolers used for pump and gravity liquid supply type ammonia refrigerators; the invention is provided with a two-step compressor set low-temperature liquid subcooler, solves the subcooling difficulty of the low-temperature and low-pressure liquid refrigerant, and is applicable in testing of the air coolers used for pump and gravity liquid supply type ammonia refrigerators.

Description

technical field [0001] The invention relates to an air cooler refrigerant side performance test device for an ammonia refrigeration device. Background technique [0002] The air cooler for ammonia refrigeration device (hereinafter referred to as: machine) is a factory-assembled part, the refrigerant flows in the tube, and the heat exchange device cools the air flowing outside the tube. As air passes through the part, the temperature of the air decreases. The machines are mostly used in refrigerated rooms, refrigerated rooms and freezing rooms. [0003] According to the air circulation mode of the machine, the machine can be divided into two types: forced circulation air cooler and natural convection air cooler. Forced circulation air coolers are air coolers equipped with fans or blowers that promote air circulation, and natural convection air coolers are air coolers that rely on natural convection to circulate air. Both types of air coolers are currently in use. [0004]...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the test problem on the refrigerant side of the gravity liquid supply type and ammonia pump liquid supply type air coolers used in large quantities, the present invention provides a performance test on the refrigerant side of the air cooler suitable for pump liquid supply type ammonia refrigeration devices device

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