AIR PREHEATER SEAL RETROFITTING OF THE 800 MW BOILER
热力发电2009年38卷第5期 页码:56-58
作者机构:
1. 华北电力大学工商管理学院
2. 神华国华(北京)电力研究院
作者简介:
基金信息:
DOI:
中图分类号:TK223.34
纸质出版:2009
稿件说明:
移动端阅览
邹海峰, 李英. 锅炉空气预热器密封改造[J]. 热力发电, 2009,38(5):56-58.
ZOU Hai-feng1, LI Ying21.School of Business Administration. AIR PREHEATER SEAL RETROFITTING OF THE 800 MW BOILER[J]. Thermal power generation, 2009, 38(5): 56-58.
ZOU Hai-feng1, LI Ying21.School of Business Administration. AIR PREHEATER SEAL RETROFITTING OF THE 800 MW BOILER[J]. Thermal power generation, 2009, 38(5): 56-58.DOI:
锅炉空气预热器密封改造
摘要
针对国华绥中电厂800MW机组锅炉空气预热器(空预器)漏风率高达30%的现状
进行了密封结构的改造。对单密封、双密封和柔性接触式密封3种方案分析比较后
认为柔性接触式密封可弥补转子的变形缺陷
对转子驱动系统和转子结构受力影响很小
且改造工作量小
检修工艺简单
效果好。改造实施后
空预器的漏风率降至10%以下
明显提高了锅炉效率
在安全性和经济性方面都取得了预期效果。
Abstract
This paper introduces the seal retrofitting of air preheater PB∏-13.8 of the 800 MW boiler of the Guohua Suizhong Electric Power Plant.According to the structure of this preheater
the author analyzes the reasons of the air leakage
contrasts the reconstruction projects and analyzes the holistic flexible contactile of seal retrofits.After the retrofit
the tests of the preheater air leakage condition have been taken under several working circumstances
and expected effects have been achieved.The air leakage rate has decreased to less than 10%.At the same time
economic evaluation has been made for this retrofit.