轴流风机失速保护拒动和误动的原因分析及对策  

Causing Analysis & Counter Measures on Refusing Act & Incorrect Operation of Stall Protection of Axial Flow Fan

作　　者：张秋生 梁华 胡晓花 邓金波[2] 郑志刚 

机构地区：[1]神华国华(北京)电力研究院有限公司,北京100069 [2]天津国华盘山发电有限责任公司,天津301900 [3]江苏国华陈家港发电有限公司,江苏224600

出　　处：《神华科技》2013年第2期48-50,共3页Shenhua Science and Technology

摘　　要：针对轴流风机失速产生的条件及保护设置机理,对失速保护拒动和误动的原因进行了分析。提出了通过将失速探针增加到3个,保护采取"三取二"设置,将取样管改变和增加伴热的方法,可以有效地防止失速保护拒动和误动,保证轴流风机的安全。This paper analyzes the causes upon refusing act incorrect operation of stall protection aiming at conditions and safeguard setting mechanization that produces by stall of axial flow fan. It can prevent refusing act incorrect operation of stall protection effectively and pledge the safety of axial flow fan with the idea of increasing the stall probe into three, the adoption of ＂two-out-of -three＂protection setting,conversion on sampling pipe and heat tracing adding.

关 键 词：轴流风机 失速保护 保护误动 保护拒动 

分 类 号：TM6[电气工程—电力系统及自动化]