A gas-liquid separator testing device and testing method thereof

Abstract

The invention discloses a testing device of a gas-liquid separator. The device comprises a gas inlet pipeline and a gas outlet pipeline, wherein the gas inlet pipeline is communicated with a gas inlet end of the gas-liquid separator to be tested; the gas outlet pipeline is communicated with a gas outlet end of the gas-liquid separator to be tested; an oil-gas separator is arranged on the gas outlet pipeline; the oil outlet end of the oil-gas separator is provided with a first flow gauge which is used for detecting the quantity of oil. Before the testing, a certain amount of lubricating oil is infused into the gas-liquid separator to be tested, and the testing device is accessed for testing. A certain amount of gas is fed into the gas inlet pipeline and enters into the gas-liquid separator to be tested; carrying a part of the oil, the gas enters the gas outlet pipeline; the oil in the gas is separated by the oil-gas separator and enters the first flow gauge to be measured, so that a return oil amount of the gas-liquid separator within an unit time is calculated. The return oil amount can be tested exactly by using the testing device; compared with the return oil amount calculated theoretically, the accuracy is greatly improved. The invention also provides a testing method.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a test device for a gas-liquid separator used in a refrigeration system and a test method thereof. Background technique [0002] The gas-liquid separator is an important part of the refrigeration system. Its basic function is to separate the liquid part of the refrigerant vapor to avoid the "liquid hammer" phenomenon caused by the liquid refrigerant entering the compressor, and also to prevent the liquid refrigerant from entering the compressor. Diluted lubricating oil in the crankcase of the engine. In the refrigeration system, a gas-liquid separator is usually arranged in the pipeline before the refrigerant enters the compressor, so that the refrigerant vapor can greatly reduce the liquid refrigerant content in it after passing through the gas-liquid separator. At the same time, in the gas-liquid separator A certain amount of lubricating oil is injected into th...

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Problems solved by technology

[0003] At present, the calculation of the oil return amount of the gas-liquid separator is mostly theoretical calculation, but in actual application, due to the difference in the structure of the U-shaped tube inside the gas-liquid separator and the difference in the production process, the oil return amount is different from the theoretical calculation. There is a certain degree of deviation in the oil return volume, and the oil return volume of the gas-liquid separator cannot be accurately obtained, so it is impossible to determine whether the oil return volume of the gas-liquid separator is appropriate

Insufficient oil return of the gas-liquid separator will easily lead to a decrease in the lubricating oil level in the crankcase of the compressor, and in severe cases, the compressor may even be short of oil, affecting the normal operation and service life of the compressor.

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