Diaphragm compressor diaphragm pulsation system fault diagnosis device based on industrial internet platform

Abstract

The invention relates to the field of diaphragm compressor diaphragm fault diagnosis, in particular to a diaphragm compressor diaphragm pulsation system fault diagnosis device based on an industrial internet platform. The device comprises a cylinder body (14), an oil distribution disc (6), a cylinder cover (7), a cover plate (5), a diaphragm (4) and a piston (11). Four resistance strain gauges (3) which are uniformly distributed in the circumferential direction are fixedly arranged on the diaphragm (4) on one side of a liquid-phase working chamber. Oil pan piezoresistors (13) are fixedly arranged in oil pan grooves (16) respectively. Cylinder cover piezoresistors (12) are fixedly arranged in cylinder cover grooves (16b) respectively. And the oil pan piezoresistors (13) and the cylinder cover piezoresistors (12) form a bridging piezoresistor signal acquisition module. According to the diaphragm compressor diaphragm pulsation system fault diagnosis device based on the industrial internet platform, detection is convenient, the fault judgment accuracy is high, and the surface stress condition of the diaphragm, the loss condition of the diaphragm and the oil leakage reason can be analyzed.

Description

Technical field [0001] The present invention relates to the field of diagnosis of diagnostic diagnosis of diaphragm compressor diaphragm, and more particularly to a diagnostic apparatus for diaphragm compressor diaphragm pulse system based on industrial Internet platforms. Background technique [0002] The diaphragm compressor is a class of technological advanced process compressor system equipment, and the diaphragm pulse system is the core component of the diaphragm compressor. At present, the diagnosis of the diaphragm pulse system mainly adopts hydraulic oil regulating valve data for indirect acquisition of driver diaphragm system. Methods to analyze and determine the pulsation working state of the diaphragm compressor diaphragm system. Due to the viscosity of the hydraulic oil system, relatively compressible and so on, it is unable to obtain real-time and reliable diaphragm compressor diaphragm system operating conditions, which seriously affects the safety of the overall co...

AI Technical Summary

Problems solved by technology

Due to the viscous and relatively compressible dynamic characteristics of the hydraulic oil system, it is impossible to obtain real-time and reliable working conditions of the diaphragm compressor diaphragm system, which seriously affects the safety of the overall compressor operation and restricts the promotion and application of diaphragm compressors. application

[0003] When the diaphragm compressor is working, the hydraulic cylinder driving the reciprocating compressor gas of the diaphragm system will inevitably leak through the piston, and the result is to reduce the piston stroke, so that the diaphragm cannot fit the cover plate when the piston reaches the outer dead center On the one hand, there is a sharp increase in force on the diaphragm and related components, the diaphragm ruptures, the compressor working chamber collapses, and the compressor stops working

On the other hand, due to the viscous characteristics of the hydraulic oil system, the method of adjusting the hydraulic oil valve data to control the hydraulic oil supply of the compressor is not timely and in place. As the running time increases, the liquid in the hydraulic cylinder becomes less and less. This makes the diaphragm unable to fit the cover continuously increase until the diaphragm is plastically deformed and fails due to fatigue, so that the clearance volume in the diaphragm cavity in the diaphragm system becomes larger and larger, and finally can no longer be sucked in. incapacitated by gas

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