Combustor adjusting method and system based on temperature field, DCS (Distributed Control System) and medium

An adjustment method and burner technology, applied in the direction of combustion method, combustion control, fuel supply adjustment, etc., can solve problems such as polluting the environment, affecting the combustion efficiency of the furnace, and uneven temperature

Active Publication Date: 2021-08-13
TIANJIN GUONENG JINNENG BINHAI THERMAL POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that the combustion efficiency of each burner in the furnace is different, which makes the temperature in the furnace uneven and has a large deviation, which will affect the combustion efficiency of the entire furnace, resulting in a low thermal energy conversion rate of pulverized coal and easy generation of NOx ,polluted environment

Method used

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  • Combustor adjusting method and system based on temperature field, DCS (Distributed Control System) and medium
  • Combustor adjusting method and system based on temperature field, DCS (Distributed Control System) and medium
  • Combustor adjusting method and system based on temperature field, DCS (Distributed Control System) and medium

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Embodiment Construction

[0090] The following is attached Figure 1-15 The application is described in further detail.

[0091] The embodiment of the present application discloses a boiler combustion system, referring to figure 1 , the system includes a boiler furnace 1 and a coal mill 2, and a plurality of burners 3 are installed in the furnace 1; the coal mill 2 includes a plurality of feed ports and a plurality of discharge ports, and one of the feed ports communicates with a Coal feeding device 4 for transporting coal to coal mill 2, coal mill 2 grinds coal into coal powder, and another feed port is connected with air supply device 21 for blowing wind into coal mill 2, wind and The air-powder mixture composed of pulverized coal is delivered to the burner 3 from the discharge port of the coal mill 2 .

[0092] A plurality of first pipelines 7 are connected to the outlet of the coal mill 2, and the first pipelines 7 are connected to the burner 3. The first pipeline 7 is equipped with a first adjus...

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Abstract

The invention relates to a combustor adjusting method and system based on a temperature field, a DCS (Distributed Control System) and a medium. The method comprises the following steps: acquiring area temperatures of a plurality of preset areas in a hearth; calculating the average temperature in the hearth based on the area temperatures of the plurality of preset areas; calculating the absolute value of the difference value between the area temperature of each preset area and the average temperature, and acquiring the deviation value of each preset area; adjusting a first adjusting mechanism and/or a second adjusting mechanism of each preset area based on the deviation value of each preset area; and repeating the step of obtaining the area temperatures of the plurality of preset areas in the hearth. The temperature in the hearth is uniform, the overall combustion efficiency of the hearth can be improved, the pulverized coal heat energy conversion rate in the power generation process is high, the energy conservation and consumption reduction effects are achieved, generation of thermal NOx is reduced, and then harm to the atmospheric environment is reduced.

Description

technical field [0001] The present application relates to the field of DCS control, in particular to a burner adjustment method, system, DCS system and medium based on a temperature field. Background technique [0002] Thermal power generation is a power generation method that converts heat energy generated during the combustion of combustibles into electrical energy. China is rich in coal resources, and thermal power generation still has great potential. [0003] In the related art, the main working devices of the thermal power plant include a furnace and a coal mill. A plurality of burners are installed on the front wall and the rear wall of the furnace. The heat generated by the combustion makes the steam generating device in the furnace generate steam, which is then used to generate electricity through the steam turbine. [0004] In view of the above-mentioned related technologies, the inventor believes that the combustion efficiency of each burner in the furnace is dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23N1/02
CPCF23N1/02F23N2225/08
Inventor 方久文高宝生张凌灿刘红霞郭志华王斌高嘉文李大辉孟继洲杨林赵可心
Owner TIANJIN GUONENG JINNENG BINHAI THERMAL POWER CO LTD
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