Thermal power plant boiler soot blower odd-even operation control system and method

Abstract

The invention relates to a thermal power plant boiler soot blower odd-even operation control system and method. A first input function block of the system is connected to the input end of a first pulse function block; the output end of the first pulse function block, a second input function block and a third input function block are connected to the input end of a first OR gate function block; the output end of the first OR gate function block is connected to a first output function block; a fourth input function block is connected to the input end of a second pulse function block; the output end of the second pulse function block, a fifth input function block and a sixth input function block are connected to the input end of a second OR gate function block; and the output end of the second OR gate function block is connected to a second output function block. According to the thermal power plant boiler soot blower odd-even operation control system and method provided by the invention, on the basis of soot blower program control logic, a DCS function block is applied, a novel soot blower odd-even operation control system and method are provided, an operator selects the soot blower operation mode to be odd blowing or even blowing or complete blowing before soot blowing program control is started, and after soot blowing program control is started, the soot blower automatically operates according to the mode selected by the operator.

Description

technical field [0001] The invention relates to the technical field of automatic control of a thermal power plant, in particular to an odd and even number operation control system and method for a boiler soot blower in a thermal power plant. Background technique [0002] The boiler is one of the three core systems of a modern thermal power station. The safety level of the boiler operation plays a decisive role in the operation safety of the entire power plant. Therefore, ensuring the safety of the boiler operation is an important part of the power plant operation. During the combustion process of the boiler, ash deposits and slagging will inevitably occur on each heating surface. Especially in domestic power plants, the actual type of coal used often deviates greatly from the designed type of coal, and some are even low-quality coal types with high moisture content, high ash content, and easy slagging, resulting in ash or even slagging of the heating area of ​​the boiler, re...

AI Technical Summary

Problems solved by technology

At this time, operators often need to manually perform operations such as listing the soot blowers that do not enter the furnace for soot blowing, which increases the labor intensity of the operators and reduces the automation level of the unit operation.

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