Alarm method when chemical container starts to establish liquid level

Abstract

The invention relates to a method for alarming during start-up liquid level establishment of chemical containers and is mainly used for solving the problem that the start-up liquid level establishing process in the prior art is easy to cause faulty operation and low in safety coefficient. The method comprises the following steps: (1) determining the activation condition, the termination condition, the process alarm limit and the condition confirmation alarm value during the liquid level establishment; (2) inputting the activation condition, the termination condition, the process alarm limit and the condition confirmation alarm value of the liquid level into a configuration table; (3) inputting the real-time data of the liquid level into a real-time data table of a server; (4) comparing in an inference engine and inputting the meaningful comparison results into a result table; (5) reading data from the result table of the server by a client. Through the technical scheme of alarming according to the comparison results, above problem is well solved, so that the method provided by the invention can be applied to the alarming during the start-up liquid level establishment of chemical containers.

Description

technical field [0001] The invention relates to an alarm method when a chemical container is started to establish a liquid level. Background technique [0002] The chemical plant is becoming increasingly large-scale, the coupling relationship between each link of the plant is getting closer, and the driving process is becoming more and more complicated, which brings more and more challenges to the safety of driving. [0003] Establishing the liquid level is an important process in the start-up of a chemical plant. Improper operation when establishing the liquid level may lead to full and empty tanks, causing equipment damage, leakage, and even fire and explosion accidents. In 2005, the fire and explosion accident of the British Petroleum Corporation (BP) refinery in Texas, USA was caused by improper operation during the process of driving to establish the liquid level. [0004] In China, there are few devices that introduce advanced control systems for automatic start-up. ...

AI Technical Summary

Problems solved by technology

[0014] The technical problem to be solved by the present invention is the problem of easy misoperation and low safety factor in the process of establishing the liquid level during start-up in the prior art, and provides a new alarm method when the chemical container is started to establish the liquid level

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