OPTIMIZATION OF THE COMBUSTION CONTROL SYSTEM FOR BOILERS EQUIPPED WITH 330 MW UNIT IN SHENHUA GUOHUA ZHUNGE'R POWER PLANT

WANG Guanding; WANG Wenbin; AN Huiyong; WANG Hu Shenhua Guohua Zhunge'r Power Plant

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OPTIMIZATION OF THE COMBUSTION CONTROL SYSTEM FOR BOILERS EQUIPPED WITH 330 MW UNIT IN SHENHUA GUOHUA ZHUNGE'R POWER PLANT

更新时间：2025-09-28

- OPTIMIZATION OF THE COMBUSTION CONTROL SYSTEM FOR BOILERS EQUIPPED WITH 330 MW UNIT IN SHENHUA GUOHUA ZHUNGE'R POWER PLANT
- Thermal Power Generation Vol. 39, Issue 7, Pages: 62-64(2010)
- 作者机构：
  
  神华国华准格尔电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.72
- Published：2010
- 稿件说明：
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WANG Guanding, WANG Wenbin, AN Huiyong, et al. OPTIMIZATION OF THE COMBUSTION CONTROL SYSTEM FOR BOILERS EQUIPPED WITH 330 MW UNIT IN SHENHUA GUOHUA ZHUNGE'R POWER PLANT[J]. Thermal power generation, 2010, 39(7): 62-64.
DOI：

WANG Guanding, WANG Wenbin, AN Huiyong, et al. OPTIMIZATION OF THE COMBUSTION CONTROL SYSTEM FOR BOILERS EQUIPPED WITH 330 MW UNIT IN SHENHUA GUOHUA ZHUNGE'R POWER PLANT[J]. Thermal power generation, 2010, 39(7): 62-64. DOI：

摘要

针对神华国华准格尔电厂2×330 MW机组锅炉二次风量和烟气含氧量校正难以投入自动控制方式的问题

对锅炉燃烧控制系统进行了优化。将空气预热器出口二次风压力由定值控制改为随机组负荷变化的滑压控制;将氧量校正回路中校正二次风挡板开度改为校正二次风压力;根据相应给煤机的给煤量指令开环控制各层二次风挡板。优化后

提高了锅炉运行经济性

锅炉排烟温度降低了4.03℃

机组煤耗降低了0.19 g/(kW.h)

一次风机电耗率降低了0.30%

送风机电耗率降低了0.03%

引风机电耗率降低了0.10%

全厂厂用电率降低了0.43%。

Abstract

Directing against the difficult problem for putting the correction of secondary air flow rate and oxygen content in flue gas of boilers equipped with 2×330 MW units into automitic control mode

the optimization of combustion control system for said boilers has been carried out;the pressure control of secondary air at oullet of the air preheater being changed from fixed value control to slide pressure control along with load variation of the units;the correction of open dagree for secondary air damper in the oxygen-correcting circuit has been changed to correct the secondary air pressure;the secondary air damper at each level is controlled by open-loop according to coal feed commands of corresponding coal pulverizer.After optimization

the economic efficiency of boilers has been substantially enhanced

the temperature of discharged flue gas being decreased by 4.03 ℃

the coal consumption of units being lowered by 0.19 g/(kW·h)

the power consumption of primary air fan being decreased 0.30%

the power consumption of forced draft fan being lowered 0.03%

the power consumption of induced draft fan being decreased 0.10%

the auxiliary power comsumption in whole plant being lowered by 0.43%.

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