Application of the PASS system in preventing slagging in high temperature heating surface of boilers

ZHU DeYong; ZENG Biqun; YANG Bo

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Application of the PASS system in preventing slagging in high temperature heating surface of boilers

更新时间：2025-09-28

- Application of the PASS system in preventing slagging in high temperature heating surface of boilers
- Thermal Power Generation Vol. 42, Issue 10, Pages: 131-133(2013)
- 作者机构：
  
  华能海门电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.32
- Published：2013
- 稿件说明：
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ZHU DeYong, ZENG Biqun, YANG Bo. Application of the PASS system in preventing slagging in high temperature heating surface of boilers[J]. Thermal power generation, 2013, 42(10): 131-133.
DOI：

ZHU DeYong, ZENG Biqun, YANG Bo. Application of the PASS system in preventing slagging in high temperature heating surface of boilers[J]. Thermal power generation, 2013, 42(10): 131-133. DOI：

摘要

分析导致过热器和再热器管屏结渣的影响因素

指出减小各屏吸热偏差是防止高温管屏结焦的关键

促进烟气沿锅炉宽度方向的温度和速度均匀分布是消除过热器和再热器热偏差的有效途径。利用高温管屏安全性在线监测系统(PSSS)对华能海门电厂一期超超临界1 036MW机组锅炉高温再热器温度场变化和管屏结渣情况进行监测

通过实施优化炉内燃烧动力场

防止燃烧火焰冲墙、贴壁

有效控制炉膛周围还原性气体产生

降低烟气温度

同时有针对性地实行吹灰等措施后

消除了高温再热器积灰和结焦。

Abstract

The factors affecting the slagging on tubes of superheaters and reheaters were analyzed.Reducing the heat absorption deviation between each panel was pointed out as the key points to prevent slagging.Improving the uniformity of temperature and speed of flue gas in boiler width direction was the effective way to eliminate the heat deviation of superheaters and reheaters.The high temperature panel safeguard supervisory system(PSSS)was applied to investigate the temperature field variation and slagging on tube panel of superheater and reheater in boiler of ultra supercritical 1036MW unit in Huaneng Haimen Power Plant phase I.After several measures were taken

such as optimizing the aerodynamic field in furnace

preventing the flame swepting and adhereing the water wall

effectively controlling the formation of reducing gas in furnace

decreasing the flue gas temperature

and conducting soot blowing

the ash deposition and slagging on high temperature reheater was eliminated.

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