Full-automatic start-stop control system of diaphragm compressor

Abstract

The invention relates to the technical field of diaphragm compressors, in particular to a full-automatic start-stop control system of a diaphragm compressor. The full-automatic start-stop control system of the diaphragm compressor comprises an air inlet pipeline, an interstage pipeline and an exhaust pipeline. The air inlet pipeline and the exhaust pipeline are connected with the air inlet end and the exhaust end of the diaphragm compressor respectively, the interstage pipeline is arranged between all stages of air cavities of the diaphragm compressor, and each stage of the diaphragm compressor is provided with an oil overflow pipeline; and an oil overflow valve is arranged on the oil overflow pipeline to ensure that the oil pressure in the oil cavity does not exceed a set value. Full-automatic control over starting and stopping of the diaphragm compressor can be achieved, and the problems that the control process of the diaphragm compressor is complex, and field manual control is needed are solved. Meanwhile, micro-positive pressure protection of a gas path system can be achieved, and the situation that negative pressure is caused in the starting stage to cause failure of a sealing piece, and gas leakage is caused is avoided; and after shutdown unloading, the micro-positive pressure can prevent air from leaking and being mixed with compressed gas (such as hydrogen), and safety accidents are avoided.

Description

technical field [0001] The invention relates to the technical field of diaphragm compressors, in particular to a fully automatic start-stop control system for diaphragm compressors. Background technique [0002] Diaphragm compressor is a special volumetric compressor, which has the characteristics of good sealing performance, wide pressure range, large compression ratio, and no pollution to the compressed medium, so it is widely used in hydrogenation stations and other petrochemical fields to compress and transport various A high-purity gas, noble and rare gas, toxic and harmful gas and corrosive gas. [0003] The control of diaphragm compressors is relatively complicated. At present, most sites require manual operation of the equipment. For multi-stage diaphragm compressors, even two or more personnel are required to operate the equipment at the same time, which wastes manpower and material resources and cannot meet the requirements of automatic production control. Moreove...

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Problems solved by technology

[0004] In order to solve the problems existing in the above-mentioned background technology, the present invention proposes a fully automatic start-stop control system of the diaphragm compressor, which can realize the fully automatic control of the start-stop of the diaphragm compressor, and solve the problem that the control process of the diaphragm compressor is complicated and requires on-site manual control The problem

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