Intelligent electro-hydraulic actuator self-healing regulation and control system control method

Abstract

The invention relates to an intelligent electro-hydraulic actuator self-healing regulation and control system control method, which comprises the steps of collecting on-site incoming signals when the intelligent electro-hydraulic actuator is in work state, wherein the on-site incoming signals comprise a sensor signal, a hydraulic control valve signal, a controller signal, an oil pump signal and / or a power supply system signal. The beneficial effects of the present invention are that thanks to the comprehensive realization of the EHS intelligent electro-hydraulic actuator control system self-healing function, the apparatus reliability is greatly lifted; advantages like strong maintainability and high intelligent degree are provided; few technology personnel are required to diagnose and maintain the fault; the fault processing time is close to 0; maintenance can be done without shutdown the apparatus and temporary shutdown is avoided; influence to control and production prevented in the maintenance process; harm to the apparatus and the controlled object is prevented; and accident to safety and production is prevented; the system is in good state again after the maintenance; and a catalytic cracking apparatus can be ensured for stationary operation.

Description

technical field [0001] The invention relates to the technical field of an intelligent electro-hydraulic actuator control system, in particular to a control method for a self-healing control system of an intelligent electro-hydraulic actuator. Background technique [0002] In refining and chemical enterprises, the EHS (Electrohydraulicsmart) intelligent electro-hydraulic control system is mainly used in the valve position control of large-diameter special valves in catalytic cracking and other refining and chemical equipment. These special valves generally have the characteristics of high temperature and large diameter, high control accuracy and reliability. high demand. The electro-hydraulic (executive mechanism) control system itself is the key and important refining equipment and system. Its operation reliability and maintenance efficiency after failure have a great impact on the production operation and safety risk control of the entire device. Therefore, on-site operato...

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Problems solved by technology

It should be said that the reliability of the large-diameter slide valve, butterfly valve body and mechanical accessories basically meets the requirements of long-term operation, but the failure rate of the electro-hydraulic control system is relatively high, resulting in a decline in the reliability of the special valve, which is harmful to safe and stable production. process threat

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