335MW机组大修启动水汽二氧化硅持续超标的原因及措
施
宋金玲
【期刊名称】《中国电业（技术版）》 【年(卷),期】2015(000)008
【摘要】Aiming at the overhaul of subcritical 335MW unit after the start of superheated steam silica content exceed the standard continuously serious reason analysis, find out for reconstruction of pipe heating surface of boiler superheater, blowpipe is not thorough, superheater remains and attachment of dirt, sand and other dissolved at startup in high temperature and high pressure superheated steam generated in silicate, causes of superheated steam silica continues to exceed the standard, the corresponding preventive measures were put forward, the content of impurity in the starting process was reduced, the silicon cleaning time was shortened, and the carrying amount of silica in the steam was reduced.%文章针对亚临界335MW机组大修后启动中过热蒸汽二氧化硅含量持续超标严重的原因进行分析，找出因锅炉过热器受热面换管改造，吹管不彻底，过热器遗存和附着的泥土、沙砾等在启动时溶解于高温高压过热蒸汽中产生硅酸，造成过热蒸汽二氧化硅持续超标的原因，提出相应防范措施，减少启动过程中杂质含量，缩短洗硅时间，降低蒸汽中二氧化硅的携带量。 【总页数】4页(42-45)
【关键词】亚临界;大修;过热蒸汽;二氧化硅;超标
【作者】宋金玲
【作者单位】华电国际邹县发电厂，山东 邹城 273522 【正文语种】中文 【中图分类】TM769 【文献来源】
https://www.zhangqiaokeyan.com/academic-journal-cn_china-electric-power_thesis/0201232963696.html 【相关文献】
1.宝鸡第二发电厂1号机组水汽二氧化硅超标原因分析及对策 [J], 刘星; 田文华
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335MW机组大修启动水汽二氧化硅持续超标的原因及措施
