On-line testing system for semi-closed screw rod type compressor and using method thereof

Abstract

The invention provides an on-line testing system for a semi-closed screw rod type compressor. The on-line testing system comprises four loops, namely an air suction and exhaust loop of the semi-closed screw rod type compressor, an oil supply loop of the semi-closed screw rod type compressor, a compressed air oil drainage loop and an oil cooling loop. The invention further provides a using method of the system for sequentially completing the main testing process of the compressor through cooperative operation of the four loops, and the main testing process comprises testing of a one-way valve,testing of a lubricating oil valve, no-load, load, full load and unload testing of the compressor and automatic oil drainage of the compressor after completing the testing. By adopting the on-line testing system, quantitative supply of temperature and flow rate of lubricating oil and cooling oil in testing of the semi-closed screw rod type compressor can be realized; by adopting the testing system, the impact situations of the cooling oil and the lubrication oil on the air displacement of the tested semi-closed screw rod type compressor under different pressures, temperatures and flow rates can be conveniently tested; and the testing system can simultaneously realize safe, continuous and uninterrupted testing and production of the semi-closed screw rod type compressor.

Description

technical field [0001] The invention relates to a system in the technical field of refrigeration, in particular to an online test system for a semi-hermetic screw compressor. Background technique [0002] At present, the online testing system of compressors is widely used in compressor manufacturing lines to inspect the quality of each compressor produced. However, it is found through literature search of the prior art that there are no patents and technologies related to the on-line testing of semi-hermetic screw compressors so far. The key technologies of the semi-hermetic screw compressor test system are: 1. Realize the effective control of the quantitative supply of lubricating oil and cooling oil temperature and flow; 2. Realize the pressure, temperature and flow of cooling oil and lubricating oil in half The detection of the impact of the exhaust volume of the hermetic screw compressor improves the online detection capability of the semi-hermetic compressor; 3. Realiz...

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Problems solved by technology

However, through literature search of the prior art, it is found that there are no patents and technologies related to the on-line testing of semi-hermetic screw compressors so far.

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