Closed circulation degreasing and cleaning system for helium diaphragm compressor pipeline

Abstract

The invention discloses a closed circulation degreasing and cleaning system for a helium diaphragm compressor pipeline. The closed circulation degreasing and cleaning system comprises a first-stage exhaust pipe, a first-stage cooler and a second-stage air inlet pipe which are connected to the position of a first-stage exhaust valve of a first-stage cylinder cover diaphragm cavity of a compressor. The second-stage air inlet pipe is connected to a second-stage cylinder cover diaphragm cavity in a compressor body of the compressor through an air inlet valve of a second-stage exhaust valve of the compressor. The closed circulation degreasing and cleaning system further comprises a first-stage air inlet valve, a first-stage air inlet pipe, a corrosion-resistant centrifugal pump, a liquid inlet ball valve, a liquid containing tank, a liquid outlet ball valve and a second-stage cooler, wherein the first-stage air inlet valve, the first-stage air inlet pipe, the corrosion-resistant centrifugal pump, the liquid inlet ball valve, the liquid containing tank, the liquid outlet ball valve and the second-stage cooler are sequentially connected in a first-stage cylinder cover diaphragm cavity in the compressor body of the compressor. The second-stage coller is connected to the second-stage cylinder cover diaphragm cavity in the compressor body of the compressor through the second-stage exhaust valve of the compressor. Degreasing agents are added in cleaning liquid in the liquid containing tank. By the adoption of the closed circulation degreasing and cleaning system, the effect that the inner wall of the pipeline is degreased and cleaned rapidly in a dead-corner-free mode without dismounting in the original gas pipeline connecton state of the compressor is guaranteed.

Description

technical field [0001] The invention relates to the technical field of helium diaphragm compressor cleaning, in particular to a closed cycle degreasing and cleaning system for a helium diaphragm compressor pipeline. Background technique [0002] Diaphragm compressor is a volumetric compressor with a special structure, which has the characteristics of large compression ratio, good sealing performance, and the compressed gas is not polluted by lubricating oil and other solid impurities. In view of the characteristics of small molecular weight, easy leakage, high value, and easy pollution of helium, it is the best choice to choose a diaphragm compressor with better airtightness for helium compressors. Since the parts of the diaphragm compressor in contact with the compressed medium are the membrane cavity of the cylinder head and the inner surface of the gas pipeline, it will inevitably be contaminated with a certain amount of oil during manufacturing and test runs. In this way...

AI Technical Summary

Problems solved by technology

This cleaning method not only has low cleaning efficiency, wastes degreasing solvent, and is uneconomical, but also has a large size and complex shape of a single pipeline part of a large diaphragm compressor, which cannot be cleaned thoroughly by the above two methods, which also causes helium gas after installation. contaminate, reduce its purity

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