CAUSE ANALYSIS OF CORROSION FOR CHEMICAL-DOSING TUBE ENTERING INTO THE DRUM PORT

ZHANG Cuihong

doi:10.19666/j.rlfd.2005.01.016

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CAUSE ANALYSIS OF CORROSION FOR CHEMICAL-DOSING TUBE ENTERING INTO THE DRUM PORT

Thermal Power Generation Issue 1, Pages: 48-49(2005)

更新时间：2025-09-28

- CAUSE ANALYSIS OF CORROSION FOR CHEMICAL-DOSING TUBE ENTERING INTO THE DRUM PORT
- 作者机构：
  
  胜利发电厂,山东,东营,257087
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2005.01.016
  CLC： TM621.8
- Published：2005
- 稿件说明：
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ZHANG Cuihong. CAUSE ANALYSIS OF CORROSION FOR CHEMICAL-DOSING TUBE ENTERING INTO THE DRUM PORT[J]. Thermal Power Generation, 2005, (1): 48-49.
DOI：

ZHANG Cuihong. CAUSE ANALYSIS OF CORROSION FOR CHEMICAL-DOSING TUBE ENTERING INTO THE DRUM PORT[J]. Thermal Power Generation, 2005, (1): 48-49. DOI： 10.19666/j.rlfd.2005.01.016.

摘要

胜利发电厂 2 2 0MW汽轮发电机组锅炉进汽包口炉内加药 (磷酸三钠 )管腐蚀严重

管壁减薄1.2mm

主要因磷酸三钠溶液浓度偏高和加药管内有残存气体引起。对此

采取了相应的处理措施

Abstract

The innerboiler chemical (Na_3PO_4)dosing tube entering into the drum port has been seriously corroded

the thickness of tube wall decreased 1.2mm

the main causes leading to corrosion are as follows:(1) the concentration of Na_3PO_4 solution is somewhat higher; (2)residual gas exists in the dosing tube. Directing against these

corresponding remedial measures have been taken.

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