热水锅炉水循环故障分析及水循环方式改造  

Analysis and Transformations for Water Circulation Failures in Hot Water Boiler

作　　者：郦红瑛[1] 

机构地区：[1]大同煤矿集团公司企划部

出　　处：《同煤科技》2009年第4期44-45,共2页Datong Coal Science & Technology

摘　　要：发生过冷沸腾是产生锅炉受热面管变形、爆管等水循环故障的根本原因。改变了SZW4.2-0.7-95/70-AⅡ型热水锅炉的进水方式,使得水冷壁内水的流速尽量达到或接近安全流速,使目前频繁爆管的现象有所改观或彻底杜绝。Cold boiling is a major cause for water circulation failure in hot water boiler such as tube deformation and tube burst in boiler’s heating surface. Change the water inlet methods in SZW4.2-0.7-95/70-A Ⅱ-type hot water boiler by increasing the velocity of water to or near the safe speed will eliminate the failures.

关 键 词：建筑科学 采暖 热水锅炉 水循环故障 

分 类 号：TU995.2[建筑科学—供热、供燃气、通风及空调工程]