燃煤电厂燃料系统煤场数字化管理的设计与实现

Design and Implementation of Digital Management of Fuel System Coal Yard in Coal-Fired Power Plant

煤场数据的采集端位于信息安全Ⅰ区,包括输煤控制系统皮带输送机和电动夕通,以及斗轮机、皮带秤等输送设备。针对燃料系统对煤场进行数字化管理的现场需求,运用三维坐标,将煤场进行数字化的设计,对关键设备斗轮机进行精确的三维定位。通过采集输煤程控系统的可编程逻辑控制器(PLC)及斗轮堆取料机系统数据,以及入场煤皮带秤、入炉煤皮带秤的称重信息,皮带输送机状态信号、斗轮机相关状态位置信号,在输煤PLC-CPU内编制一套“入库-堆存-出库”的动态算法,对煤场入库-堆存-出库等数据进行精确统计。再利用历史数据库实现统计数据的存储和调用。实测验证,这套煤场数字化计量设计方案,实现了燃料系统对煤场的数字化管理,为建立数字化、智能化电厂提供了可靠的基础数据依据。

The collection end of the coal yard data is located in the information security area Ⅰ,including:coal conveyor control system belt conveyor and electric tee,as well as bucket turbines,belt scales and other conveying equipment.In view of the on-site requirements of the fuel system for the digital management of the coal yard,the three-dimensional coordinates are used to digitize the coal yard to accurately position the turbine of the critical equipment.By collecting the data of the coal handling program control system programmable logic controller(PLC)and the bucket wheel stacker and reclaimer system,as well as the weighing information of the coal belt scale and the coal belt scale entering the furnace,the belt machine status signal and the status information of the bucket turbine related state,in the coal conveying PLC,a dynamic algorithm of u inbound-stacking-outboundn is compiled in the CPU to accurately calculate the data of the coal yard storage-storage-outbound.Reuse the historical database to realize the storage and invocation of statistical data.The actual measurement and verification,the digital measurement design scheme of the coal yard has realized the digital management of the fuel system to the coal yard.Provide a reliable basis for the establishment of digital,intelligent power plants.