热电厂锅炉给煤机堵煤信号跳闸事故分析  

Analysis of Coal Feeder Blocking Signal Abnormal Tripping for the Boilers in Thermal Power Plant

作　　者：李振明 

机构地区：[1]连云港虹洋热电有限公司,江苏连云港222066

出　　处：《安徽电力》2015年第4期17-18,共2页Anhui Electric Power

摘　　要：在介绍连云港虹洋热电厂锅炉给煤机堵煤信号跳闸异常事件的基础上,阐明给煤机堵煤信号对保证给煤机正常运行和防止因堵煤情况加深而增加清理工作量、损坏给煤机皮带、托辊导致停运磨煤机降低机组负荷等有重要的作用。如果堵煤信号不能正常起到报警、跳闸保护的作用,将严重影响设备的安全稳定经济运行。Based on the coal feeder blocking signals abnormal tripping for boilers in Lianyungang Hongyang thermal power plant,the coal feeder blocking signal was very important for coal feeder normal operation,it could prevent the situation of coal blocking,if this signal could not work well,the amount of clean-up work were increased,the coal machine belt and roller were damaged,which led to shutdown of the coal grinding machine and reduced the load ability of the system.If the blocking signal could not play a normal role in the alarm and trip protection,it would seriously affect the safe and stable operation of the equipment.

关 键 词：发电厂 锅炉 给煤机 堵煤信号 跳闸 负荷 

分 类 号：TM621.2[电气工程—电力系统及自动化]