CAUSE ANALYSIS OF HIGH-TEMPERATURE CORROSION OCCURRED ON THE WATER-WALL OF 1025 t/h BOILER AND SOLVING MEASURES THEREOF

LI Gang1; LI Xixiao1; WEI Tongsheng2; XU Dangqi2; SUN Guoyong1; DENG Tianpeng1; YANG Jun1 1.Huaneng Huangtai Power Generation Co Ltd

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CAUSE ANALYSIS OF HIGH-TEMPERATURE CORROSION OCCURRED ON THE WATER-WALL OF 1025 t/h BOILER AND SOLVING MEASURES THEREOF

更新时间：2025-09-28

- CAUSE ANALYSIS OF HIGH-TEMPERATURE CORROSION OCCURRED ON THE WATER-WALL OF 1025 t/h BOILER AND SOLVING MEASURES THEREOF
- Thermal Power Generation Vol. 41, Issue 2, Pages: 53-55(2012)
- 作者机构：
  
  1. 华能济南黄台发电有限公司
  2. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK224.9
- Published：2012
- 稿件说明：
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LI Gang1, LI Xixiao1, WEI Tongsheng2, et al. CAUSE ANALYSIS OF HIGH-TEMPERATURE CORROSION OCCURRED ON THE WATER-WALL OF 1025 t/h BOILER AND SOLVING MEASURES THEREOF[J]. Thermal power generation, 2012, 41(2): 53-55.
DOI：

LI Gang1, LI Xixiao1, WEI Tongsheng2, et al. CAUSE ANALYSIS OF HIGH-TEMPERATURE CORROSION OCCURRED ON THE WATER-WALL OF 1025 t/h BOILER AND SOLVING MEASURES THEREOF[J]. Thermal power generation, 2012, 41(2): 53-55. DOI：

摘要

针对某发电公司300MW机组1 025t/h锅炉进行的燃烧调整试验表明

水冷壁产生高温腐蚀的主要原因是一次风动量偏低

刚性不足

在壁面处形成了较强的还原性气氛所致。通过增加周界风风量

提高了一次风射流动量

使水冷壁高温腐蚀缓解。此外

优化二次风配风方式可有效改善水冷壁壁面气氛

建议AB/BC/CD/DE二次风挡板按缩腰配风方式运行。对于防止水冷壁大面积的高温腐蚀

贴壁风的作用非常有限。

Abstract

Directing against the problem of high-temperature corrosion occurred on the water-wall of 1 025 t/h boiler for unit no.8 in one power plant

a combustion adjustment test has been carried out.Analysis shows that the main cause is the lower momentum of primary air.Through maintaining certain open-degree of the peripheral air

the momentum of primary air jet has been enhanced

making the high-temperature corrosion occurred on the water-wall to be alleviated.Besides

the distribution mode of secondary air can effectively improve the atmosphere on wall surface of the water-wall

the baffle plates of secondary air AB/BC/CD/DE have to be in operation according to the shrink-waist mode.For high-temperature corrosion in large areas

the influence of air being closed to the wall is very limited.

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