RETROFIT OF FABRIC EXPANSION JOINT IN RETURN CHUTE OF 300MW CFB BOILER

NIU Shuyun1; LI Sheng1; JIANG Jianzhong2 1.Datang Honghe Power Generation Co Ltd

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RETROFIT OF FABRIC EXPANSION JOINT IN RETURN CHUTE OF 300MW CFB BOILER

更新时间：2025-09-28

- RETROFIT OF FABRIC EXPANSION JOINT IN RETURN CHUTE OF 300MW CFB BOILER
- Thermal Power Generation Vol. 39, Issue 11, Pages: 49-50(2010)
- 作者机构：
  
  1. 大唐红河发电有限责任公司
  2. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.6
- Published：2010
- 稿件说明：
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NIU Shuyun1, LI Sheng1, JIANG Jianzhong2 1.Datang Honghe Power Generation Co Ltd. RETROFIT OF FABRIC EXPANSION JOINT IN RETURN CHUTE OF 300MW CFB BOILER[J]. Thermal power generation, 2010, 39(11): 49-50.
DOI：

NIU Shuyun1, LI Sheng1, JIANG Jianzhong2 1.Datang Honghe Power Generation Co Ltd. RETROFIT OF FABRIC EXPANSION JOINT IN RETURN CHUTE OF 300MW CFB BOILER[J]. Thermal power generation, 2010, 39(11): 49-50. DOI：

摘要

大唐红河发电有限责任公司2台300 MW循环流化床(CFB)锅炉回料腿非金属膨胀节存在超温、烧坏和泄漏等问题

分析了造成这些问题的原因

并提出了优化密封结构

调整回料腿与炉膛之间预留的膨胀量

修复回料腿内部的耐磨耐火材料等改造方案。实施后

从根本上解决了回料腿非金属膨胀节因超温、烧坏和泄漏而导致的机组非停

提高了锅炉的安全和经济性。

Abstract

The problems existing on fabric joints in return chute of two 300 MW CFB boilers in Datang Honghe Power Generation Co Ltd are overtemperature

burn-out of ring

and leakage etc.

the causes resulting in above-mentioned problems have been analysed

and retrofit scheme being put forward

including optimization of the sealing structure

adujustment of the reserved expansion clearance between the return chute and the furnace

and repair of abrasion-resistant refractory material inside the return chute etc..After retrofitting

the non-scheduled shutdown of units due to above-mentioned problems occurred on fabric expansion joints in return chute has been fundamentally resolved

enhancing safety and economic efficiency of the boilers.

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