Test on pulverizer exit temperature upgrade for 660 MW supercritical coal-fired generators

WANG Xiaohui; WANG Hai; ZHAO Xiaopeng; XIONG Jian

doi:10.3969/j.issn.1672-3643.2016.05.013

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Test on pulverizer exit temperature upgrade for 660 MW supercritical coal-fired generators

更新时间：2025-09-24

- Test on pulverizer exit temperature upgrade for 660 MW supercritical coal-fired generators
- Ningxia Electric Power Issue 5, (2016)
- 作者机构：
- 作者简介：
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- DOI：10.3969/j.issn.1672-3643.2016.05.013
  CLC：
- Published Online：26 October 2020，
  
  Published：2016
- 稿件说明：
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WANG Xiaohui, WANG Hai, ZHAO Xiaopeng, et al. Test on pulverizer exit temperature upgrade for 660 MW supercritical coal-fired generators[J]. Ningxia electric power, 2016, (5).
DOI：

WANG Xiaohui, WANG Hai, ZHAO Xiaopeng, et al. Test on pulverizer exit temperature upgrade for 660 MW supercritical coal-fired generators[J]. Ningxia electric power, 2016, (5). DOI： 10.3969/j.issn.1672-3643.2016.05.013.

摘要

为降低锅炉排烟温度

提高机组经济性

采用“热重-红外光谱”的方法分析实际煤种的挥发分(CO)析出规律

研究磨煤机温度提升对煤粉着火能的影响

以验证磨煤机出口温度提升的可行性。试验结果表明:磨煤机出口温度提升后

磨煤机运行安全可靠

锅炉排烟温度下降

锅炉效率提高

发电标准煤耗降低约1.17 g/(kW·h)

机组年节约费用约人民币128.2万元

具有良好的经济效益和推广价值

可为同类型燃煤机组提供参考和借鉴。

Abstract

In order to reduce flue gas temperature of the boiler and improve economy of thegenerators

adopts thermogravimetry and infrared- spectrum methods to analyze the volatilesseparating law for actual kinds of coals

studies the influence of coal pulverizer temperature upgradeon coal powder combustion capability

verifies the feasibility of coal pulverizer exit temperatureupgrade. The test result shows that: after the coal pulverizer exit temperature upgrade

the operation ofthe coal pulverizers are safe and reliable

reduces standard coal consumption for power generationabout 1.17 g/(kW·h)

saves generators cost about RMB1.282 million yuan a year

brings fine economicbenefits and spread value

can provide reference for the same type of generators.

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Analysis and treatment on flue gas temperature too high of boiler in power plant

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