RETROFIT OF PLATEN REHEATER FOR 480t/h CFB BOILER

YANG Yongbo1; DUAN Kening1; JIANG Jianzhong2; DONG Xuezhi1; GU Huxiong11.Xi'an Thermal Power Research Institute Co Ltd

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RETROFIT OF PLATEN REHEATER FOR 480t/h CFB BOILER

更新时间：2025-09-28

- RETROFIT OF PLATEN REHEATER FOR 480t/h CFB BOILER
- Thermal Power Generation Vol. 39, Issue 10, Pages: 73-76(2010)
- 作者机构：
  
  1. 中盐吉兰泰氯碱化工有限公司热电厂
  2. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.66
- Published：2010
- 稿件说明：
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YANG Yongbo1, DUAN Kening1, JIANG Jianzhong2, et al. RETROFIT OF PLATEN REHEATER FOR 480t/h CFB BOILER[J]. Thermal power generation, 2010, 39(10): 73-76.
DOI：

YANG Yongbo1, DUAN Kening1, JIANG Jianzhong2, et al. RETROFIT OF PLATEN REHEATER FOR 480t/h CFB BOILER[J]. Thermal power generation, 2010, 39(10): 73-76. DOI：

摘要

介绍了中盐吉兰泰氯碱化工有限公司热电厂480t/h循环流化床(CFB)锅炉屏式再热器变形、撕裂和爆管等问题

认为原设计、施工的屏式再热器顶部穿墙密封盒处膨胀节存在缺陷

悬吊屏式再热器的恒力弹簧吊架预紧力不足

屏式再热器出口集箱没有安装导向装置

再热器管壁存在超温现象等是造成屏式再热器管屏变形的主要原因。通过改造

屏式再热器变形情况得到控制

且再未发生爆管停炉事故

改造效果明显。

Abstract

The problems of platen reheater in 480 t/h boiler

such as deformation

tear

and tube-burst etc.

of thermal power plant subordinated to China Salt Jilantai Chlorine-Alkali Chemical Co Ltd

have been presented

it is believed that the main causes leading to deformation of the platen reheater are as follows:defects existing on oxpansion joint of the wall-entrance sealing box at top of the platen reheater constructed according to the original design;insufficent pretightening load applied to the constant force spring hanger of said hanging platen reheater;the guide means weren't installed for the outlet header of platen reheater;overtemperature phenomenon occurred on tube-wall of the platen reheater etc..Through retrofitting

the deformation of platen reheater can be controlled

the failures of tube-burst and boiler shutdown haven't occurred again

boasting remarkable effectiveness.

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