Boiler return feeder blockage prewarning method based on decision tree system

Abstract

The invention discloses a boiler return feeder blockage prewarning method based on a decision tree system. The method comprises the following steps: (1) a boiler room environment and boiler operation parameter data A are obtained, and a boiler return feeder blockage critical value B is obtained to build a return feeder blockage error rate table T; (2) the decision tree system is built; a contrast system is built; and the decision tree system and the contrast system are logically matched; (3) an electronic sensor obtains real-time boiler return feeder data to transmit to the decision tress system to obtain a return feeder blockage high-low value probability P; (4) if P is higher than 0.8, a boiler return feeder is blocked, and a console gives a warning alarm; and (5) boiler workers confirm after obtaining the warning alarm sent by the console; and if the boiler return feeder is not blocked after confirmation, the decision tree system is wrong in judgment, and is corrected. The method realizes automatic judgment of blockage of the boiler return feeder, and is accurate in judgment.

Description

technical field [0001] The invention belongs to the technical field of early warning, in particular to a method for early warning of blockage of a boiler return feeder based on a decision tree system. Background technique [0002] At present, the electronic sensor prompting system is set up in the early warning system of each feeder block in China. The principle of the traditional electronic sensor is to feedback the value of each section to the central control system in a timely manner through the electronic sensor perception of the high and low values ​​of the blockage of the return feeder. Work through the graphic prompts of the central control system to know the high and low values ​​of the blockage of the boiler return feeder. However, due to the high temperature of the boiler furnace tube and the corrosiveness of the furnace water, it has a certain degree of influence on the electronic sensor, which causes a wrong estimate or a false value on the feedback value of the...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a method for early warning of boiler feeder blockage based on a decision tree system, which can immediately correct the data error of the electronic sensor in various environments, and remind the boiler staff to return the feeder In order to ensure the normal and stable operation of the boiler, to prolong the service life of the electronic sensor, reduce the maintenance cost of the boiler, and realize the automatic judgment of the blockage of the boiler return feeder , the judgment is accurate, no manual judgment is needed, and the labor intensity of the staff is reduced

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