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Combustion optimization method based on coal quality on-line monitoring

A technology for combustion optimization and coal quality, applied in combustion methods, combustion chambers, and controlled combustion, can solve problems such as boiler efficiency decline, pollutant NOx emission increase, and frequent amplitude modulation

Active Publication Date: 2020-02-28
NANJING SCIYON AUTOMATION GRP
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  • Abstract
  • Description
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Problems solved by technology

[0008] The invention provides a combustion optimization method based on coal quality online monitoring, which solves the problems of reduced boiler efficiency and increased pollutant N

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  • Combustion optimization method based on coal quality on-line monitoring
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  • Combustion optimization method based on coal quality on-line monitoring

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Abstract

The invention discloses a combustion optimization method based on coal quality on-line monitoring. The method comprises a coal quality on-line monitoring method, an operation optimization method of apulverizing system based on coal quality on-line monitoring, a refined air distribution optimization method based on coal quality on-line monitoring, and a flue gas oxygen content optimization methodbased on coal quality on-line monitoring. Pulverizing system optimization realizes real-time optimization of the coal mill coal-air ratio, refined air distribution optimization realizes matching optimization of secondary air volume and burnout air volume of all burners, and fuel gas oxygen content optimization realizes total volume optimization. The combustion optimization method can adapt to thechange of coal quality and load to carry out dynamic real-time optimization, the boiler efficiency is effectively improved, and the emission of pollutants NOx is reduced.

Description

Technical field: [0001] The invention relates to a combustion optimization method based on coal quality on-line monitoring, in particular to the technical field of combustion optimization control technology for boilers of coal-fired power generation units. Background technique: [0002] Coal-fired thermal power generation units due to variable loads and coal types make the boiler combustion deviate from the designed coal type. Traditional boiler coordinated control optimization often cannot adapt to changes in coal quality, making the primary air rate and secondary air rate of the boiler operation , Ember wind rate, oxygen control, etc. have deviated from the optimal operating conditions. At present, the primary air rate, secondary air rate, and embers air volume rate are mainly adjusted manually by operating personnel based on experience. When the coal quality deviates greatly, problems such as frequent overheating of the water wall, slagging and burning of the burner nozz...

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Application Information

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IPC IPC(8): F23M11/04F23N5/20F23N5/26G06Q10/04G06Q50/06
CPCF23M11/04F23N5/206F23N5/265G06Q10/04G06Q50/06
Inventor 刘国耀沈德明吴生辉陈福兵李扬
Owner NANJING SCIYON AUTOMATION GRP
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