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

CAO Jie-yu; SONG Jing-xia Xi'an Thermal Power Research Institute Co Ltd

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

Thermal Power Generation Vol. 38, Issue 9, Pages: 29-32(2009)

更新时间：2025-09-28

- STUDY ON TEST METHODS FOR EVALUATING INHIBITERS USED IN CHEMICAL CLEANING OF BOILERS
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.8
- Published：2009
- 稿件说明：
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CAO Jie-yu, SONG Jing-xia Xi'an Thermal Power Research Institute Co Ltd. STUDY ON TEST METHODS FOR EVALUATING INHIBITERS USED IN CHEMICAL CLEANING OF BOILERS[J]. Thermal Power Generation, 2009, 38(9): 29-32.
DOI：

CAO Jie-yu, SONG Jing-xia Xi'an Thermal Power Research Institute Co Ltd. STUDY ON TEST METHODS FOR EVALUATING INHIBITERS USED IN CHEMICAL CLEANING OF BOILERS[J]. Thermal Power Generation, 2009, 38(9): 29-32. DOI：

摘要

对化学清洗过程中几种钢腐蚀速率的测量方法

如静态失重法、动态腐蚀试验方法、Fe3+影响试验方法和电化学腐蚀试验方法进行对比分析

由试验证明了清洗介质流速、Fe3+浓度、冲洗水的pH值、漂洗阶段添加缓蚀剂等因素对钢腐蚀速率有较大影响。评价化学清洗液对钢腐蚀速率的影响应采用动态腐蚀试验方法和Fe3+影响试验方法

电化学试验方法是研究化学清洗液腐蚀性能和实际清洗过程中在线腐蚀监测的有效手段。

Abstract

The measurement methods of corosion rate for several steels

such as the static state weight loss method

the dynamic corrosion test method

the influence of Fe3+ test method

and the electro-chemical corrosion test method

used in the process of chemical cleaning have been compared and analysed.Test results show that the factors

namely the flow speed of cleaning medium

the concentration of Fe3+

the pH valve of flushing water

and the dosage of inhibitor in washing stage etc.

have large influence upon the corrosion rate of steel.In order to evaluate the influence of chemical cleaning liquid upon the corrosion rate of steel

the dynamic corrosion test method and the influence of Fe3+ test method have to be used

while the electro-chemical test method is one of the most useful test methods to study the corrosion performance of chemical cleaning lequid

and an on-line corrosion monitoring method in practical process of chemical cleaning.

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