On-line remote state monitoring and fault analysis diagnosis system of reciprocating compressor

Abstract

The reciprocal compressor is the key power equipment in petrochemical industry, but due to its complex structure and motion nature, the failure rate of reciprocal compressor in production is high. According the structural characteristics and monitoring targets of reciprocal compressor, the power-showing hole is equipped with a special pressure sensor which is high temperature resistant, high pressure resistant and fatigue resistant; the three directions of cross slideway box wall, cylinder side wall and cylinder cover wall are both equipped with vibration acceleration sensor; the piston rod box body is in-equipped with displacement sensor; the air intake pipe and the air discharge pipe are equipped with platinum resistance temperature sensor on themselves; the rotary axle is equipped with a key phase sensor. The signals of various sensors are transmitted into underlying computer to be stored after pass through amplifier and A / D converter. The amplifier, A / D converter and the underlying computer is laid in the explosion-proof tank on production site. The signals of underlying computer are inputted into up-lying computer through network to analysis and process data and diagnose faults. The present invention is characterized by establishing a set of practical reciprocal compressor state online motion and fault diagnosis system which on-site use is convenient and express, diagnosis accurate rate is high. As far as now, the system in same type has not been used on site, so it has very good application prospect.

Description

technical field [0001] The invention provides a system for on-line remote monitoring and fault analysis and diagnosis of large multi-cylinder reciprocating compressors in industrial fields such as petroleum, chemical industry, metallurgy and power. The system can comprehensively monitor the state of the reciprocating compressor, and at the same time, its thermal performance failures (including failures of air valves, piston rings, stuffing boxes, water coolers, filters, etc.) Air valve damage, piston ring wear and fracture, piston rod, stuffing box wear, connecting rod crosshead wear, crankshaft fracture, cylinder crack) and other faults are analyzed and diagnosed. Background technique [0002] Reciprocating compressors are a type of key power equipment widely used in petroleum, chemical, metallurgy, power and other industrial fields, and play the role of the "heart" of the human body in production. However, due to the complex structure and movement form of the reciprocatin...

AI Technical Summary

Problems solved by technology

This will inevitably bring about two problems: on the one hand, the failure of the compressor cannot be reflected in time before the maintenance, resulting in unplanned shutdown and production, and even equipment and personnel safety accidents; on the other hand, sometimes the compressor Nothing went wrong, and regular overhauls could lead to unnecessary downtime and maintenance expenditures

[0005] To sum up, there is not yet a set of online remote state monitoring and fault analysis and diagnosis expert system for reciprocating compressors identical to the present invention

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