Flue gas wet desulphurization ultra-clean discharge self start-stop control method and system

Abstract

The invention discloses a flue gas wet desulphurization ultra-clean discharge self start-stop control method and relates to a flue gas desulphurization automatic control method. The method comprises the steps that: a desulphurization system sends a start or stop instruction to a first PDCA closed-loop control module, the first PDCA closed-loop control module emits a calling instruction to a machine set control level, the machine set control level outputs the calling instruction to a second PDCA closed-loop control module, the second PDCA closed-loop control module emits the calling instruction to a parent group control level, the parent group control level outputs the calling instruction to a third PDCA closed-loop control module, the third PDCA closed-loop control module emits the calling instruction to a subgroup control level or a device control level, the subgroup control level continuously outputs the calling instruction to a fourth PDCA closed-loop control module, the fourth PDCA closed-loop control module emits the calling instruction to the device control level, and the device control level determines the operation state of the connected flue gas desulphurization equipment according to the received calling instruction. The invention further relates to a control system for realizing the flue gas wet desulphurization ultra-clean discharge self start-stop control method.

Description

technical field [0001] The invention relates to an automatic control method for flue gas desulfurization, in particular to an automatic start-stop control method for ultra-clean emission of wet desulfurization of flue gas. The invention also relates to a control system for realizing the self-start-stop control method of the flue gas wet desulfurization ultra-clean emission. Background technique [0002] A complete set of desulfurization system has a large number of equipment, subsystems, and key nodes. The operating personnel have heavy responsibilities and difficult control. Especially during the start-up and stop of the desulfurization system, the operation requirements are very high. The traditional production process relies too much on the subjective judgment and manual operation of the operator, which not only is prone to misjudgment and misoperation accidents, but also affects the safety and economy of the desulfurization system operation. [0003] The number of measu...

AI Technical Summary

Problems solved by technology

The traditional production process relies too much on the subjective judgment and manual operation of the operator, which not only is prone to misjudgment and misoperation accidents, but also affects the safety and economy of the desulfurization system operation

Images