CAUSES LEADING TO ASH-CLOGGING IN REGENERATIVE AIR HEATERS AND PREVENTION THEREOF

doi:10.19666/j.rlfd.2002.05.015

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CAUSES LEADING TO ASH-CLOGGING IN REGENERATIVE AIR HEATERS AND PREVENTION THEREOF

Thermal Power Generation Issue 5, Pages: 46-49(2002)

更新时间：2025-09-28

- CAUSES LEADING TO ASH-CLOGGING IN REGENERATIVE AIR HEATERS AND PREVENTION THEREOF
- 作者机构：
  
  1. 华能丹东电厂
  2. 华能丹东电厂,辽宁,丹东,118300
  3. ,辽宁,丹东,118300
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2002.05.015
  CLC： TK223.34
- Published：2002
- 稿件说明：
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CAUSES LEADING TO ASH-CLOGGING IN REGENERATIVE AIR HEATERS AND PREVENTION THEREOF[J]. Thermal Power Generation, 2002, (5): 46-49.
DOI：

CAUSES LEADING TO ASH-CLOGGING IN REGENERATIVE AIR HEATERS AND PREVENTION THEREOF[J]. Thermal Power Generation, 2002, (5): 46-49. DOI： 10.19666/j.rlfd.2002.05.015.

摘要

对空气预热器低温腐蚀进行详细分析

找出空气预热器发生堵灰的根本原因在于烟气中存在SO3以及受热面金属壁温低于烟气露点。对此

提出了提高受热面壁温在烟气露点以上等控制措施

以确保空气预热器的正常运行

Abstract

Detailed analysis of low temperature corrosion in regenerative air heaters had been carried out

it was found that the basic causes leading to ash-clogging in the said air heaters were: （1） SO 3 existing in the flue gas; （2） the wall temperature of heating surface was lower than dew point of the flue gas. For these reasions

some control measures for enhancing wall temperature of the heating surface were put forward

so as to ensure the normal operation of the said air heaters.

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