Algorithm of slag cooler adopting specific heat capacity weighted average slag blockage early warning intelligent system

Abstract

The invention relates to a slag blocking early warning intelligent algorithm of a slag cooler, in particular to an algorithm of a specific heat capacity weighted average slag blocking early warning intelligent system adopted by the slag cooler. The output ports of the plurality of branch lines A are connected to the input end of a first summator M7, the output ports of the plurality of branch lines B are connected to the input end of a second summator M12, and the output ports of the first summator M7 and the second summator M12 are connected to a divider M13 for data analysis to obtain a weighted average PT; the output end of the weighted average PT and the output end of the slag feeding temperature parameter transmitter PT1 are both connected to a subtracter module M14, the output end of the subtracter module M14 is connected with the input end of a low selector module M15, the output end of the low selector module M15 is connected to a first input end i22, a second input end i24 is connected with a slag cooler operation delay end, and the output end of an AND module M16 is connected with a slag cooler slag blocking early warning signal. Dredging measures can be found and taken in time, and the situation that the safe and stable operation of a unit is affected due to unsmooth slag conveying caused by slag blockage of the slag cooler is prevented.

Description

technical field [0001] The invention relates to an intelligent early warning algorithm for slag blockage of a slag cooler, in particular to an algorithm of an early warning intelligent system for slag blockage using a specific heat capacity weighted average for the slag cooler. Background technique [0002] The water-cooled slag cooler is an important equipment for the slagging system of the circulating fluidized bed boiler in the thermal power plant. Reliable, reasonable and stable operation of the slag cooler to ensure smooth slag discharge is the basis for the stable operation of the boiler. Therefore, whether the slag cooler is clogged will seriously affect the safe operation of the unit. During the slag discharge process of the slag cooler, the slag inlet temperature is too high, and it is impossible to effectively measure whether the slag is blocked, and it is difficult to find the slag blockage phenomenon through human monitoring. If necessary, it is necessary to arr...

AI Technical Summary

Problems solved by technology

During the slag discharge process of the slag cooler, the slag inlet temperature is too high, and it is impossible to effectively measure whether the slag is blocked, and it is difficult to find the slag blockage phenomenon through human monitoring. If necessary, it is necessary to arrange personnel to carry out the slag operation on the spot as soon as possible. The slag temperature is very high, which seriously affects personal safety and the safe and stable operation of the unit.

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