TUBE BURST OF PLATEN SUPERHEATER ON A CIRCULATING FLUIDIZED BED BOILER:REASON ANALYSIS AND SOLVING MEASURES

ZHANG Zhibo1; YAO Bingyin1; MA Jianmin1; ZHANG Chunxiang1; DU Jiajun2; LIU Jianguo2; SHAN Lifeng2 1.Xi'an Thermal Power Research Institute Co.

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TUBE BURST OF PLATEN SUPERHEATER ON A CIRCULATING FLUIDIZED BED BOILER:REASON ANALYSIS AND SOLVING MEASURES

Thermal Power Generation Vol. 41, Issue 12, Pages: 78-80(2012)

更新时间：2025-09-28

- TUBE BURST OF PLATEN SUPERHEATER ON A CIRCULATING FLUIDIZED BED BOILER:REASON ANALYSIS AND SOLVING MEASURES
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 神华亿利能源有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.32
- Published：2012
- 稿件说明：
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ZHANG Zhibo1, YAO Bingyin1, MA Jianmin1, et al. TUBE BURST OF PLATEN SUPERHEATER ON A CIRCULATING FLUIDIZED BED BOILER:REASON ANALYSIS AND SOLVING MEASURES[J]. Thermal Power Generation, 2012, 41(12): 78-80.
DOI：

ZHANG Zhibo1, YAO Bingyin1, MA Jianmin1, et al. TUBE BURST OF PLATEN SUPERHEATER ON A CIRCULATING FLUIDIZED BED BOILER:REASON ANALYSIS AND SOLVING MEASURES[J]. Thermal Power Generation, 2012, 41(12): 78-80. DOI：

摘要

某循环流化床(CFB)锅炉屏式过热器发生爆管

通过对爆管管样进行金相组织检验、化学成分分析、机械性能测试等

认为爆管是由长期超温运行所致。对此

采取减少屏式过热器的换热面积

将部分管子割除短接等措施后

屏式过热器冷段出口壁温为455℃左右

热段出口壁温为488℃左右

均在合理范围

超温问题得到了明显改善。

Abstract

Tube burst occurred on platen superheater of a circulating fluidized bed boiler(CFB).Based on series of tests such as microstructure examination

chemical composition analysis and mechanical property test

long time over-temperature operation was considered as the main reason.Thus

heating surface of the platen superheater was changed into water cooling evaporate panel

to reduce the heat exchange surface

and increase the flow speed of medium inside the pipe.Furthermore

part of the superheater pipes were cut

and the coverage area of refractory were enlarged

too.Results show that

after the improvement

the outlet wall temperature of primary platen superheater is about 455 ℃

and the one for final platen superheater is about 488 ℃

which are all in a reasonable range.

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