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Fault diagnosis method and system for hot air adjusting baffle

A technology for adjusting baffles and fault diagnosis, which is applied in grain processing and other directions, and can solve problems such as stuck and sudden closing of hot air adjustment baffles.

Active Publication Date: 2021-10-01
北京京能电力股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the existing problem that the hot air regulating baffle of the coal mill frequently occurs faults such as jamming and sudden closing, which cause relatively large adverse consequences, the present invention provides a fault diagnosis method and system for the hot air regulating baffle

Method used

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  • Fault diagnosis method and system for hot air adjusting baffle
  • Fault diagnosis method and system for hot air adjusting baffle
  • Fault diagnosis method and system for hot air adjusting baffle

Examples

Experimental program
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Effect test

Embodiment 1

[0057] like figure 1 As shown, a method for diagnosing a fault of a hot air regulating baffle according to an embodiment of the present invention includes the following steps:

[0058] S100. Obtain the feedback value of the opening of the hot air regulating baffle of the coal mill;

[0059] S200. According to the feedback value of the opening degree of the hot air regulating baffle of the coal mill, judge whether the hot air regulating baffle of the coal mill is stuck or suddenly closed.

[0060] By obtaining the feedback value of the opening degree of the hot air regulating baffle of the coal mill, the situation of the hot air regulating baffle can be known in time, so as to facilitate the diagnosis of the hot air regulating baffle through the processing of the feedback value of the opening degree of the hot air regulating baffle Whether there is a jamming fault or a sudden closing fault on the board, so as to give the staff an effective early warning, and then avoid major a...

Embodiment 2

[0112] like Figure 4 As shown, a fault diagnosis system for a hot air regulating baffle according to an embodiment of the present invention includes a controller 100;

[0113] The controller 100 collects the feedback value of the opening degree of the hot air regulating baffle of the coal mill through the potentiometer 103 installed on the hot air regulating baffle 200 of the coal mill;

[0114] The controller 100 judges whether the coal mill hot air regulating baffle 200 is jammed or suddenly closed according to the feedback value of the opening of the coal mill hot air regulating baffle 200 .

[0115] By obtaining the feedback value of the opening degree of the hot air regulating baffle of the coal mill, the controller 100 can know the situation of the hot air regulating baffle in time, so as to facilitate diagnosis by processing the feedback value of the opening degree of the hot air regulating baffle Whether the hot air regulating baffle has a jamming fault or a sudden c...

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Abstract

The invention relates to a fault diagnosis method and system for a hot air adjusting baffle. The feedback value of the opening degree of the hot air adjusting baffle of a coal mill is obtained; and according to the feedback value of the opening degree of the hot air adjusting baffle of the coal mill, whether the hot air adjusting baffle of the coal mill has a blockage fault or a sudden closing fault or not is judged. By acquiring the feedback value of the opening degree of the hot air adjusting baffle of the coal mill, whether the hot air adjusting baffle has the blockage fault or the sudden closing fault or not can be diagnosed, so that an effective early warning can be given to a worker, and a relatively great negative effect caused by frequent blockage, sudden closing and other faults of the hot air adjusting baffle is avoided.

Description

technical field [0001] The invention relates to the technical field of power plant boiler pulverizing system control, in particular to a fault diagnosis method and system for a hot air regulating baffle. Background technique [0002] Large thermal power plant boilers are equipped with multiple sets of pulverizing systems, mostly using primary air positive pressure direct blowing pulverizing systems of medium-speed coal pulverizers, and the boilers operate with basic load or peak regulation. The functions of the coal mill control system include the temperature control of the pulverized coal mixture at the outlet of the coal mill and the primary air volume control for conveying and drying pulverized coal. The outlet temperature, the hot air adjustment baffle at the inlet of the coal mill is used to adjust the primary air volume at the inlet of the coal mill, and the coal feeding volume can meet the requirements of the main fuel control by adjusting the speed of the coal feeder...

Claims

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Application Information

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IPC IPC(8): B02C25/00B02C23/00B02C23/04
CPCB02C25/00B02C23/00B02C23/04
Inventor 金生祥张劲松李前宇何川邵兴恩潘作为李大明张宏元白秀春庞占洲李微付艳军姜伟江小明王俊俊展宗波杨红兵刘笑晗林伟弥社刚陈晓东宋强卢建荣李永富
Owner 北京京能电力股份有限公司
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