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Intelligent soot blowing control method, system and storage medium based on multi-dimensional evaluation factors

A technology for evaluating factors and control methods, applied in combustion methods, instruments, lighting and heating equipment, etc., can solve the problems of poor effect of sootblowing optimization scheme, inability to accurately evaluate the influence of the degree of contamination on the heating surface and the impact on the safe and economical operation of the boiler, etc. Achieve the effects of improving safety and economy, reducing maintenance and soot blowing labor, and reducing the risk of blowing damage

Active Publication Date: 2022-08-05
STATE GRID HUNAN ELECTRIC POWER +2
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Problems solved by technology

[0006] The present invention provides an intelligent soot blowing control method, system and storage medium based on multi-dimensional evaluation factors, which are used to solve the problem that the existing soot blowing optimization system cannot accurately evaluate the degree of contamination of the heating surface and the impact of soot blowing on the safe and economical operation of the boiler. Influence, technical problems that lead to poor effect of the formulated soot blowing optimization plan

Method used

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  • Intelligent soot blowing control method, system and storage medium based on multi-dimensional evaluation factors
  • Intelligent soot blowing control method, system and storage medium based on multi-dimensional evaluation factors
  • Intelligent soot blowing control method, system and storage medium based on multi-dimensional evaluation factors

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Embodiment 1

[0059] like figure 1 As shown, the present embodiment discloses an intelligent soot blowing control method based on multi-dimensional evaluation factors, comprising the following steps:

[0060] According to expert experience and mechanism analysis, multiple boiler operation parameters are selected as evaluation factors for selecting sootblowers. Multiple boiler operation parameters reflect the corresponding area of ​​sootblower, the corresponding type of ash layer to the safety and economic operation of the boiler, and the corresponding heating surface. The effect of the degree of association of contamination;

[0061] According to the influence of each evaluation factor on the boiler safety, the degree of economic operation and the degree of correlation with the heating surface contamination, each evaluation factor is divided into priority groups;

[0062] Determine whether the value of each evaluation factor is within the normal state range, count the number of evaluation ...

Embodiment 2

[0067] The second embodiment is a preferred embodiment of the first embodiment, and the difference from the first embodiment is that the specific steps of the intelligent soot blowing control method based on the multi-dimensional evaluation factor are refined, including the following steps:

[0068] The soot blowers at different positions are used to remove the soot deposits on the heating surface of the boiler in different areas. Different boiler operating parameters can directly or indirectly reflect the soot contamination degree of different heating surfaces and the safe and economic operation of the boiler before and after soot blowing. Therefore, if In order to accurately judge the degree of soot fouling on the heating surface, ensure the safe and economical operation of the boiler before and after soot blowing by the soot blower, and control the refinement of the soot blower to blow soot efficiently as needed, it is necessary to accurately select the corresponding soot blo...

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Abstract

The invention discloses an intelligent soot blowing control method, system and storage medium based on multi-dimensional evaluation factors. By selecting a plurality of boilers reflecting the contamination degree of the heating surface corresponding to the soot blower and the influence of soot blowing on the safety and economy of boiler operation The operating parameters are used as the evaluation factors for the selection of sootblowers, and each evaluation factor is prioritized and grouped according to the impact of each evaluation factor on the boiler safety, the degree of economic operation, and the degree of correlation with the contamination of the heating surface; Determine whether the value of each evaluation factor is within the normal state range, count the number of evaluation factors within the priority level of each group whose value is not within the normal state range, and calculate the number of evaluation factors within the priority level of each group whose value is not within the normal state range. The number of evaluation factors judges whether soot blower is needed for soot blowing, thereby reducing the soot blowing steam loss of the power plant, reducing the risk of blowing damage to the heating surface, and improving the safety and economy of boiler operation.

Description

technical field [0001] The invention relates to the field of intelligent control of coal-fired boiler equipment, in particular to an intelligent soot blowing control method, system and storage medium based on multi-dimensional evaluation factors. Background technique [0002] During the combustion of pulverized coal in the boiler of thermal power unit, various degrees of ash and slagging will occur on each heating surface due to the deposition of incombustible minerals. The slagging of ash on the heating surface will reduce the heat transfer performance of the heating surface, which is the main reason for seriously affecting the boiler output and boiler efficiency. Therefore, in the operation of the boiler, it is particularly important to use the soot blower to purge the heating surface in time for the efficient and safe operation of the boiler. [0003] The current boiler soot blowing control strategy is generally based on operating procedures to regularly perform soot blo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23J1/00F23J3/00G01D21/02
CPCF23J1/00F23J3/00G01D21/02
Inventor 曾俊蒋森年宾谊沅李文军陈文陈珣刘帅
Owner STATE GRID HUNAN ELECTRIC POWER
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