描述
除尘器启动后
除尘器启动后,滤袋表面会形成布粉层,除尘器就会在离线状态下进行清灰程序。通常除尘器性能的最佳显示就是除尘系统的压力值(无压力显示由控制柜自动控制),特别是除尘器单个过滤室的压力值是滤袋状况的最佳显示,压力值的突然升高或降低即意味着滤袋的堵塞、泄漏、阀不动作、清灰系统失灵或灰斗积灰过多。处于对滤袋的保护,每个过滤室的压力值最高不得超过2000Pa。
(1)滤袋的清灰:
远程控制:选择开关选定“远程”位置,系统满足远程控制条件后,即可实现远程控制清灰工序。
就地控制:选择开关选定“就地”位置,系统满足就地控制条件后,即可实现就地控制清灰工序。
(2)除尘器的关机:
用PLC关闭除尘器,除尘器提升阀会关闭,再手动关闭进风口调节阀(注意:在滤袋清灰过程中或灰斗中还有积灰时,不能停止输灰系统)
过滤室的关闭由PLC控制。只有在绝对必要的情况下才让单个过滤室离线,并尽快使其恢复在线工作,因为在该室离线时,除尘器清灰频率将增加。
通过PLC或手动关闭提升阀,并完全关闭进风口手动调节阀,实现过滤室的完全离线。
在离线的过滤室的进出风阀上悬挂标记并限位,防止人员在内时突然打开。
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主营:世界知名品牌的PLC、DCS系统备件模块
①Allen-Bradley(美国AB)系列产品》
②Schneider(施耐德电气)系列产品》
③General electric(通用电气)系列产品》
④Westinghouse(美国西屋)系列产品》
⑤SIEMENS(西门子系列产品)》
⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系统、WDPF系统、MAX1000系统备件。
⑧Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)
顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数
据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余(TMR)
结构的zui现代化的容错控制器。
⑨Siemens(西门子):Siemens MOORE,Siemens Simatic C1,Siemens数控系统等。
⑩Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
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