凝汽器二次滤网的故障分析与结构改进  

Fault analysis and structural renovation on secondary filter screen of condensers

作　　者：姚纪恒 

机构地区：[1]广东粤华发电有限责任公司,广东广州510600

出　　处：《广东电力》2004年第2期42-44,共3页Guangdong Electric Power

摘　　要：凝汽器二次滤网是电厂关键设备之一,其工作高效与否,直接影响到电厂经济性的提高。为此,介绍了目前国内外电厂普遍使用的二次滤网的类型、结构及应用情况,对影响凝汽器二次滤网性能的故障原因进行了分析。机理分析表明,结构上的不足是导致二次滤网排污性能不稳定的根本原因。提出了二次滤网结构改进的措施与方法,并阐明了工程实施的重点。The secondary filter screen of condensers is one of the key equipments in power plants, and its efficiency directly influences the plant economy. This paper describes the types, structures and applications of secondary filter screens widely used in power plants at home and abroad, analyzing various failure modes. Mechanism analysis shows that structural defects are the root cause of unstable blowdown performance of secondary filter screen. Measures for renovating the structure of secondary filter screen are presented and key points during renovation expounded.

关 键 词：凝汽器 二次滤网 结构 改进 

分 类 号：TK264.11[动力工程及工程热物理—动力机械及工程]