440t/h锅炉管式空预器堵灰原因分析与治理

姜浩; 秦兵

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DOI:10.3969 / j.issn.1006 － 4729.2013.05.011

上海电力大学学报:2013,29(5):455-458

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440t/h锅炉管式空预器堵灰原因分析与治理

姜浩^1,2, 秦兵³

(1.华北电力大学, 北京 102206;2.华能新疆能源开发有限公司, 新疆乌鲁木齐 830017;3.华能新疆阜康热电有限责任公司, 新疆阜康 831500)

Analysis and Treatment of Ash Plugging of the Shell-and-Tube Air Preheater of the 440 t/h Boiler

JIANG Hao^1,2, QIN Bing³

(1.North China Electric Power University, Beijing 102206, China;2.Huaneng Xinjiang Energy Development Co. , Ltd. , Urumqi830017, China;3.Huaneng Xinjiang Fukang Thermal Power Company Limited, Fukang 831500, China)

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本文已被：浏览 796次下载 618次
投稿时间：2013-02-25

中文摘要: 对某电厂2台440 t/h锅炉管式空气预热器堵灰问题进行了计算和分析,指出了导致空气预热器堵灰的主要原因为烟气结露、烟气流速低与分布不均等.根据锅炉设计和运行特点,制定了加装围板提高空气预热器末端管壁温度、封堵部分换热管以及增加导流板等可行的技术改造方案,改造后的机组实现了长周期的稳定运行.

中文关键词: 440 t/h锅炉管式空气预热器堵灰酸露点

Abstract:The ash plugging and its reasons of the shell-and-tube air preheaters of two 440 t/h boilers are presented and analyzed. The reasons include the condensation，low velocity and uneven distribution of flue gas in the preheaters. According to the boiler design and operation characters，the renovation measures are presented，which are increasing the temperatures at the end of heat exchange tubes，plugging some heat exchange tubes and installing baffles. Finally，satisfactory results are obtained after renovation.

keywords: 440 t/h boiler shell-and-tube air preheater ash plugging dew-point

文章编号：20130511 中图分类号： 文献标志码：

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作者	单位	E-mail
姜浩	华北电力大学, 北京 102206 华能新疆能源开发有限公司, 新疆乌鲁木齐 830017	hnxjjh@163.com
秦兵	华能新疆阜康热电有限责任公司, 新疆阜康 831500

Author Name	Affiliation	E-mail
JIANG Hao	North China Electric Power University, Beijing 102206, China Huaneng Xinjiang Energy Development Co. , Ltd. , Urumqi830017, China	hnxjjh@163.com
QIN Bing	Huaneng Xinjiang Fukang Thermal Power Company Limited, Fukang 831500, China

引用文本：
姜浩,秦兵.440t/h锅炉管式空预器堵灰原因分析与治理[J].上海电力大学学报,2013,29(5):455-458.
JIANG Hao,QIN Bing.Analysis and Treatment of Ash Plugging of the Shell-and-Tube Air Preheater of the 440 t/h Boiler[J].Journal of Shanghai University of Electric Power,2013,29(5):455-458.