RETROFIT OF AIR COWLS ON AIR DISTRIBUTING PLATE IN CFB BOILERS

FAN Xu1; LIU Wen-xian1; CHANG Jian-gang1; ZHOU Ruo-ming1; LIU Feng21.Hebei Electric Power Research Institute

doi:10.19666/j.rlfd.2009.01.012

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RETROFIT OF AIR COWLS ON AIR DISTRIBUTING PLATE IN CFB BOILERS

更新时间：2025-09-28

- RETROFIT OF AIR COWLS ON AIR DISTRIBUTING PLATE IN CFB BOILERS
- Thermal Power Generation Vol. 38, Issue 1, Pages: 49-50(2009)
- 作者机构：
  
  1. 河北电力研究院
  2. 大唐保定热电厂
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2009.01.012
  CLC： TK229.66
- Published：2009
- 稿件说明：
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FAN Xu1, LIU Wen-xian1, CHANG Jian-gang1, et al. RETROFIT OF AIR COWLS ON AIR DISTRIBUTING PLATE IN CFB BOILERS[J]. Thermal power generation, 2009, 38(1): 49-50.
DOI：

FAN Xu1, LIU Wen-xian1, CHANG Jian-gang1, et al. RETROFIT OF AIR COWLS ON AIR DISTRIBUTING PLATE IN CFB BOILERS[J]. Thermal power generation, 2009, 38(1): 49-50. DOI： 10.19666/j.rlfd.2009.01.012.

摘要

针对循环流化床锅炉布风板风帽存在的磨损及漏渣等问题

通过在风帽入口处加装节流圈

减少风帽数量

改变风帽结构等使问题得到基本解决。由冷态试验和计算结果可知

改造后布风板压降有所增加

风帽结构更加合理

使炉内的流化与燃烧工况得以改善。

Abstract

Directing against the problems existing in air cowls

such as abrasion and slag leakage

on the air-distributing plate in CFB boilers

through additionally installing throttle ring at entrance of the air cowls

decreasing the number of air cowls

and modifying the structure of air cowls etc.

it is known from cold-state test and calculation that the above-mentioned problems have been basically solved.After retrofitting

the pressure drop of air-distributing plate has been somewhat increased

the structure of air cowls being more reasonable

laying a good foundation for long-term economic operation of the unit.

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