Boiler air flue blockage early-warning method based on decision-making tree system

Abstract

The invention discloses a boiler air flue blockage early-warning method based on a decision-making tree system, which comprises the following steps: step (1), obtaining boiler room environment and boiler operating parameter data A, then obtaining a boiler air flue blockage critical value B, and establishing an air flue blockage error rate table T; step (2), establishing the decision-making tree system, establishing a contrast system, and logically matching the decision-making tree system with the contrast system; step (3), using an electronic sensor to obtain boiler air flue data, transmitting the boiler air flue data to the decision-making tree system, and obtaining an air flue blockage high / low probability P; step (4), if p is larger than 0.8, sending out a warning prompt by a center console; step (5), after receiving the warning prompt sent by the center console, affirming the warning prompt by a boiler worker, and if affirming that a boiler air flue is not blocked, which indicates misjudgement of the decision-making tree system, correcting the decision-making tree system. The method can realize automation judgment on blockage of the boiler air flue.

Description

technical field [0001] The invention belongs to the technical field of early warning, in particular to a method for early warning of boiler air duct blockage based on a decision tree system. Background technique [0002] At present, all air duct blockage warning systems in China are equipped with electronic sensor prompting systems. The principle of the traditional electronic sensor is to sense the high and low values ​​of the air duct blockage, and to feedback the value of each segment to the central control system in time through the electronic sensor perception. The work can know the high and low values ​​of the boiler air duct blockage through the graphic and text prompts of the central control system. However, due to the high temperature of the boiler tube and the corrosiveness of the boiler 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 air duct blockage, which causes th...

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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 boiler air duct blockage warning method 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 that the air duct is blocked The situation allows the staff to get an accurate air duct blockage 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 boiler air duct blockage, which is accurate and accurate. Manual judgment is no longer required, reducing the labor intensity of staff

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