300MW机组稀相气力除灰输送控制系统及应用

以外高桥发电厂稀相气力除灰输送控制系统为依据，对该系统在实际应用中双机热备通讯；系统通讯抗干扰；模拟量模板设置与组态问题／编程初始化；办入反馈信号常闭触点改常触点、与国内６ｋＶ控制开关接口；风机压力过保护；压力监控趋势；滤网差压阻值设置；高料位优先出灰以及灰库料位测量问题提出了意见与看法。供今后在选择或制造同类系统借鉴。

Recommendations From Field Experience Dilute Phase Pneumatic Ash Handling system for 300 MW Units and Its Application

Based on the dilute phase ash handling system in Waigaoqiao power plant,the author presents some view points and suggestions on the following problems existed in application:two unit communication with live standby,interference protection of communication system,setting,configuration and initialization of programming of modules in simulation board,changing normally closed(nc) contacts for input feedback into normally opened (no)contacts,interface with domestic 6kV switchgears,over pressure protection for fans,pressure trend supervision,setting of filter differential pressure,priority for high ash level discharge,and measurement of ash silo level These can be the reference for future selection and manufacture of the similar system