Pulverized coal boiler combustion optimization control system and method
A pulverized coal boiler and combustion optimization technology, applied in the field of pulverized coal boilers, can solve the problems of boiler operation economy level to be improved and large safety margin, so as to reduce the carbon content of fly ash and NOx generation, and improve the blending Proportion, the effect of huge economic benefits
Pending Publication Date: 2022-04-26
河北建投任丘热电有限责任公司 +1
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Problems solved by technology
[0003] At present, the boiler air distribution method is heavily dependent on the experience of the operators to adjust. Due to the different operating levels of the operators, the reserved safety margin is too large, so the economic level of boiler operation needs to be improved.
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[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] A pulverized coal boiler combustion optimization control system includes a pulverized coal boiler system and a DCS control system connected with the pulverized coal boiler system. The DCS control system is used to control the combustion adjustment of the pulverized coal boiler system.
[0021] The pulverized coal boiler system includes a boiler, the pulverized coal inlet of the boiler is connected with a coal mill, and the pulverized coal outlet of the coal mill is equipped with a dynamic separator; the inside of the boiler is equipped with an SCR system, which is used for denitrification of flue gas; the boiler’s There are flue gas discharge ports on both sides respectively, and the flue gas discharge ports are respectively connected with flue gas discharge pipes, and electric dust collectors are arranged on the flue gas discha...
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The invention discloses a pulverized coal boiler combustion optimization control system and method. The pulverized coal boiler combustion optimization control system comprises a pulverized coal boiler system and a DCS control system which is connected with the pulverized coal boiler system and used for controlling combustion adjustment of the pulverized coal boiler system. The pulverized coal boiler system comprises a boiler, a pulverized coal inlet of the boiler is connected with a coal mill, and a pulverized coal outlet of the coal mill is provided with a dynamic separator; an SCR (Selective Catalytic Reduction) system is arranged in the boiler; the two sides of the boiler are respectively connected with an electric dust remover through a flue gas discharge pipeline, the electric dust remover is respectively provided with a fly ash carbon content on-line measuring device, and the output end of the fly ash carbon content on-line measuring device is connected with the input end of a DCS (Distributed Control System). According to the invention, the carbon content and NOx generation amount of fly ash can be effectively reduced, the mixing proportion of economic coal types is improved, and huge economic benefits are generated.
Description
technical field [0001] The invention relates to the technical field of pulverized coal boilers, in particular to a combustion optimization control system and method for pulverized coal boilers. Background technique [0002] With the increase of new energy installed capacity, the load fluctuations of thermal power generating units become more and more frequent, and the peak-to-valley difference is getting bigger and bigger; at the same time, in order to reduce power supply costs, various power plants have carried out mixed combustion of economical coal, so frequent combustion adjustments are required . During the combustion adjustment process, the carbon content of fly ash and NO x The change direction of the amount of generation is often inconsistent, how to balance the carbon content of fly ash and NO x Production volume becomes the key to combustion adjustment. [0003] At present, the boiler air distribution method is heavily dependent on the experience of the operatin...
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Login to View More IPC IPC(8): F23N1/02F23N5/00
CPCF23N1/02F23N5/00F23N2223/44F23N2237/26F23N2239/02F23N2900/05003
Inventor 王路松李奔薛峰李修生窦旭龚思远
Owner 河北建投任丘热电有限责任公司