Diaphragm compressor air pressure nondestructive monitoring system and method

Abstract

The invention belongs to the technical field of compressors, and particularly relates to a diaphragm compressor air pressure nondestructive monitoring system and method. Due to the fact that a diaphragm compressor is high in operational pressure ratio and wide in pressure range, and the exhaust pressure can reach 300 MPa at most, if the method that pressure measuring holes are machined in a cylinder body is adopted, the strength of an air cylinder is affected, in addition, leakage can be caused, and therefore potential safety hazards are caused. The diaphragm compressor air pressure nondestructive monitoring system comprises a diaphragm assembly, an exhaust pipe, an air side cylinder head, a strain rosette circuit group, a strain gauge circuit and a data acquisition processing assembly, and is characterized in that the strain rosette circuit assembly is connected with the data acquisition processing assembly, and the strain gauge circuit is connected with the data acquisition processing assembly; the diaphragm assembly comprises a first diaphragm, a second diaphragm and a third diaphragm which are sequentially arranged, the strain rosette circuit group comprises a first strain rosette circuit, a second strain rosette circuit and a third strain rosette circuit; and nondestructive monitoring and diagnosis of the operation health state of the diaphragm compressor are realized.

Description

technical field [0001] The application belongs to the technical field of compressors, and in particular relates to a diaphragm compressor air pressure non-destructive monitoring system and method. Background technique [0002] Diaphragm compressor is a special equipment for gas compression with no leakage in the compression cavity. Because of its good sealing performance, wide pressure range and large compression ratio, it is widely used in hydrogen refueling stations and petrochemical fields to compress and transport various high-purity gases, precious and rare gases, toxic and harmful gases and corrosive gases. . The diaphragm is the core component of the diaphragm compressor. The piston pushes the working oil in the oil chamber of the cylinder, and then pushes the diaphragm to reciprocate in the diaphragm chamber to change the working volume of the air chamber. With the cooperation of the suction and exhaust valves To achieve a leak-free periodic work process. In high-...

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Problems solved by technology

[0006] Due to the high pressure ratio and wide pressure range that the diaphragm compressor can operate, the exhaust pressure can reach up to 300MPa. If the method of processing the pressure measuring hole on the cylinder block is adopted, it will not only affect the strength of the cylinder, but also may cause leakage and bring safety. hidden dangers, this application provides a diaphragm compressor air pressure non-destructive monitoring system and method

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