STUDY ON CrO2-4-RELEASING IN CONVERTING PROCESS OF ADDING OXYGEN INTO FEED-WATER FOR BOILERS

LI Zhigang1; SHEN Baozhong2; HUANG Wanqi1 1.Xi'an Thermal Power Research Institute Co Ltd

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STUDY ON CrO2-4-RELEASING IN CONVERTING PROCESS OF ADDING OXYGEN INTO FEED-WATER FOR BOILERS

Thermal Power Generation Vol. 41, Issue 2, Pages: 47-52(2012)

更新时间：2025-09-28

- STUDY ON CrO2-4-RELEASING IN CONVERTING PROCESS OF ADDING OXYGEN INTO FEED-WATER FOR BOILERS
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 华能石洞口第二发电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.8
- Published：2012
- 稿件说明：
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LI Zhigang1, SHEN Baozhong2, HUANG Wanqi1 1.Xi'an Thermal Power Research Institute Co Ltd. STUDY ON CrO2-4-RELEASING IN CONVERTING PROCESS OF ADDING OXYGEN INTO FEED-WATER FOR BOILERS[J]. Thermal Power Generation, 2012, 41(2): 47-52.
DOI：

LI Zhigang1, SHEN Baozhong2, HUANG Wanqi1 1.Xi'an Thermal Power Research Institute Co Ltd. STUDY ON CrO2-4-RELEASING IN CONVERTING PROCESS OF ADDING OXYGEN INTO FEED-WATER FOR BOILERS[J]. Thermal Power Generation, 2012, 41(2): 47-52. DOI：

摘要

通过监测不同类型机组锅炉给水加氧转换过程及运行期间氢电导率、溶解氧、CrO42-等指标的变化

对加氧转换过程中CrO42-的释放来源进行分析讨论。研究表明

给水加氧转换期间热力系统某些取样点检测出的CrO42-来源于不锈钢取样管

与热力系统设备无关。采用给水加氧处理的机组在正常运行时

未检测出铬离子含量的异常变化。

Abstract

Through Monitoring the converting process of adding oxygen into feed-water of boilers for different capacity parameters of units and the variation of indices in operation period

such as the hydrogen conductivity

the disolved oxygen

an the CrO2-4 etc.

the source of CrO2-4-releasing in converting process of adding oxygen has been analysed and discussed.Study shows that the source of CrO2-4 detected from some sampling points of the thermodynamic system in the converting process of adding oxygen into feed-water are sampling tubes made from stainless steel

and having no relationship with the equipents in said system.During normal operation of units adopting the adding oxygen treatment

abnormal variation of CrO2-4 content hadn't detected from each sampling point.

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