STUDY ON DIAGNOSIS AND MECHANISMS OF FAILURE RESULTED FROM CORROSION FATIGUE ON MEMBRANE WATER-WALL TUBES

SHI Zhi-gang1; MA Hong1; LI Wei2; SUN Lei2; HE Xi-peng1; ZHANG Lei11.Xi'an Thermal Power Research Institute Co Ltd

doi:10.19666/j.rlfd.2008.05.021

English

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STUDY ON DIAGNOSIS AND MECHANISMS OF FAILURE RESULTED FROM CORROSION FATIGUE ON MEMBRANE WATER-WALL TUBES

Thermal Power Generation Issue 5, Pages: 77-80(2008)

更新时间：2025-09-28

- STUDY ON DIAGNOSIS AND MECHANISMS OF FAILURE RESULTED FROM CORROSION FATIGUE ON MEMBRANE WATER-WALL TUBES
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 国电太原第一热电厂
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2008.05.021
  CLC： TK224.9
- Published：2008
- 稿件说明：
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SHI Zhi-gang1, MA Hong1, LI Wei2, et al. STUDY ON DIAGNOSIS AND MECHANISMS OF FAILURE RESULTED FROM CORROSION FATIGUE ON MEMBRANE WATER-WALL TUBES[J]. Thermal Power Generation, 2008, (5): 77-80.
DOI：

SHI Zhi-gang1, MA Hong1, LI Wei2, et al. STUDY ON DIAGNOSIS AND MECHANISMS OF FAILURE RESULTED FROM CORROSION FATIGUE ON MEMBRANE WATER-WALL TUBES[J]. Thermal Power Generation, 2008, (5): 77-80. DOI： 10.19666/j.rlfd.2008.05.021.

摘要

腐蚀疲劳是锅炉水冷壁管水侧常见的失效类型

其隐蔽性强

破坏性大

严重威胁电厂的安全生产。从某电厂锅炉膜式水冷壁管频繁开裂的实例出发

介绍了水冷壁管腐蚀疲劳失效的特征

分析了疲劳失效的原因及易产生疲劳失效的部位

并提出了降低交变应力和减少腐蚀源等防止对策。

Abstract

The corrosion fatigue is a kind of failure commonly occurred on the water side of water-wall tubes in boiler

having strong covertness and large damaging force

threatening seriously safe production in power plants.From practical example of frequently cracking on membrane water-wall tubes in boilers of one power plant

the characteristics of corrosion fatigue failure of water-wall tubes have been presented

the causes and locations easily resulting in fatigue failure being analyzed

and preventing measures

such as lowering the alternating stress

and decreasing the corrosion source etc.

have been put forward.

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