Anti-misoperation control system and method for switching process in chemical process

Abstract

The invention discloses an anti-misoperation control system and method for a switching process in a chemical process, and belongs to the technical field of automatic control and process misoperation prevention. According to the invention, when the operation ticket is generated, targeted operation prompting is carried out on the manual operation equipment of a specific manual operation point, so that the intelligent key for executing the operation ticket must execute corresponding operation according to the corresponding operation prompting during field operation so as to complete a correct operation process, otherwise, the operation is not allowed to be continuously executed; the operation prompting and the corresponding operation comprise means of monitoring the reading of the verification card, detecting the state, waiting for observation, obtaining the observation result, judging whether the operation is sent or not and the like. According to the invention, the operation process canbe subjected to forced standardization through various technical means, and the safety control of the manual operation equipment during the process switching in the chemical process is realized.

Description

technical field [0001] The invention relates to the technical field of automation control and process error prevention, in particular to an error prevention control system and method for process switching in a chemical process. Background technique [0002] At present, in the anti-mistake management and control of power transmission and transformation operation and maintenance, it is mainly to lock and control various types of electrical equipment, and at the same time lock and control the intervals where the electrical equipment is located. Operation of lockouts and operation of electrical equipment. In the chemical process, the main control objects are valves and start-stop switches. Valves include electric control valves and manual control valves. Start-stop switches include electric control switches and manual control switches; , the English abbreviation of Distributed Control System) for remote control and status monitoring, while manual control valves and manual switc...

AI Technical Summary

Problems solved by technology

[0004] However, the anti-mistake management and control of the switching process in the existing chemical process only keeps the above requirements in the operation specification

The operator just takes the operation confirmation card (operation guide, paper) to the site and operates step by step according to the operation guide on the confirmation card. Whether the operation is in place cannot be supervised

That is to say, the existing technology has not been controlled by technical means. When operating some hand-operated valves, it is impossible to actually control whether they are accompanied by monitoring personnel; If you have passed this step, you have already left or you have taken the next step in violation of the regulations, and you cannot actually control it.

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