回转式空气预热器改造技术的探讨

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英文篇名：Discussion of the Retrofit Technology of Rotation Airpreheater 中文刊名：华北科技学院学报 英文刊名：Journal of North China Institute of Science and Technology 作者：王淑梅 ; 李建荣 英文作者：Wang Shumei Li Jianrong(Yanjiao Development Zone Economic and Technological Development General Company ; Beijing eastern Yanjiao 101601) 中文关键词：回转式空气预热器 ; 漏风率 ; 降低 ; 技术改造 英文关键词：rotation air preheater ; retrofit technology ; discussion ; leakage ; fall 出版日期：2003-08-15 机构：燕郊开发区经济技术发展总公司,燕郊开发区经济技术发展总公司 北京 东燕郊 101601 ,北京 东燕郊 101601 年：2003 期：03 出版单位：华北科技学院学报

摘要

为解决电厂锅炉空气预热器漏风率过高的问题,提出了新的空气预热器改造方案,其技术关键是通过安装新的扇形板和轴向密封板,形成双密封;在转子轴的密封中增加迷宫密封等方法,使漏风率由30％下降到9％,保证了锅炉正常运行及运行的经济性。
Air preheater's high leakage is the main factor which affect boiler running safety and running economically. In the airpreheater retrofit of Jiangjin thermal power station, installed new-design sectorplate and axial sectorplate, became double sealing construction; Add labyrinthine sealing to main shaft, and so on, then the leakage of airpreheater was fall to 9% from 30%. The retrofit approaches were recited and the know-how of retrofit was discussed in this article.

引文

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