Discussion on corrosion of power plant boilers during chemical cleaning

ZHANG Xiang Jin; WEN Huifeng; WEI Chengjun

doi:10.19666/j.rlfd.201710021

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Discussion on corrosion of power plant boilers during chemical cleaning

Thermal Power Generation Vol. 47, Issue 7, Pages: 133-138(2018)

更新时间：2025-09-28

- Discussion on corrosion of power plant boilers during chemical cleaning
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201710021
  CLC： TM621.8
- Published Online：04 July 2018，
  
  Published：2018
- 稿件说明：
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ZHANG Xiang Jin, WEN Huifeng, WEI Chengjun. Discussion on corrosion of power plant boilers during chemical cleaning[J]. Thermal Power Generation, 2018, 47(7): 133-138.
DOI：

ZHANG Xiang Jin, WEN Huifeng, WEI Chengjun. Discussion on corrosion of power plant boilers during chemical cleaning[J]. Thermal Power Generation, 2018, 47(7): 133-138. DOI： 10.19666/j.rlfd.201710021.

摘要

本文简要探讨了电站锅炉化学清洗中均匀腐蚀、点腐蚀、电偶腐蚀、缝隙腐蚀、晶间腐蚀等几种常见的腐蚀类型及其发生原因

从清洗剂与锅炉材质的匹配、缓蚀剂的质量分数、清洗温度、清洗流速等方面分析了锅炉化学清洗腐蚀事故发生的原因

最后主要从化学清洗前方案的制定和清洗过程中严控清洗工艺两方面详细论述了电站锅炉化学清洗腐蚀的控制措施。以期为化学清洗公司、业主单位或第三方监理机构控制化学清洗质量提供借鉴。

Abstract

This study briefly discusses the common corrosion types of the chemical cleaning for power plant boilers

which include uniform corrosion

point corrosion

galvanic corrosion

crevice corrosion and intergranular corrosion. From the aspects of matching of cleaner and boiler material

mass fraction of corrosion inhibitor

cleaning temperature and flow velocity

the causes of the corrosion accidents about boiler chemical cleaning are analyzed. The control measures for the boiler chemical cleaning corrosion are elaborated in detail from the aspects of the formulation of the pre-chemical cleaning project and the strict control of the cleaning process during the cleaning process. This study can provide a reference for the chemical cleaning companies

the owners or the third-party supervision agencies to control the chemical cleaning quality.

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CONTROLLING OF FERRIC ION CORROSION IN BOILER CHEMICAL CLEANING

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STUDY ON TEST METHODS FOR EVALUATING INHIBITERS USED IN CHEMICAL CLEANING OF BOILERS

ANALYSIS OF REPAIR WHEN LEAKAGE OCCURRED ON FOUR KINDS OF TUBES IN THE BOILER OF 300MW UNIT

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