1C31147G01 一、分散控制系统(DCS)概述 DCS具有通用性强、系统组态灵活、控制功能完善、数据处理方便、显示操作集中、人机界面友好、安装简单规范化、调试方便、运行安全可靠的特点,在国内外电力、石油、化工、冶金、轻工等生产领域特别是大型发电机组有着较为广泛的应用。目前国内应用较多的的品牌主要有: (1)国外品牌:美国ABB、西屋、德国西门子、日本横河、日立等; (2)国内:国电智深、和利时、新华等。 DCS的安全、可靠与否对于保证机组的安全、稳定运行至关重要,若发生问题将有可能造成机组设备的严重损坏甚至人身安全事故。所以非常有必要分析DCS运行中出现的各类问题,采取措施提高火电厂DCS的安全可靠性。 二、DCS在生产过程中的故障情况 每个厂家的DCS都有其各自的特点,因此其故障的现象分析和处理不尽相同,但归纳起来由DCS引起机组二类及以上障碍可划分为三大类: (1)系统本身问题,包括设计安装缺陷、软硬件故障等。 (2)人为因素造成的故障,包括人员造成的误操作,管理制度不完善及执行环节落实。 (3)系统外部环境问题造成DCS故障。如环境温度过高、湿度过高或过低、粉尘、振动以及小动物等因素造成异常。 ------------------------------------------------------------------- 厦门莫格电气自动化有限公司 杨小姐(区域经理) 电话: 传真:0592-3514751(请备注杨工收) Q 【官网/ 【价格】如此低价,**一家 【货期】大量现货,下单后即可发货 【质量】全新原装,进口现货 【**】产品经过专业检测,质保一年,15天包退换 【服务标准】降低客户的停机时间以及维护成本,减少所有的工业机械和生产设备运行故障,延长控制系统的寿命! ---------------------------------------------------------------- CEAG Pepperl+Fuchs Cooper Crouse-Hinds LB 3001 GHG 127 0000 A 3001 -OVP- CEAG Pepperl+Fuchs Cooper Crouse-Hinde LB 3102 GHG 127 0000 A 3102 CEAG Pepperl+Fuchs Cooper Crouse-Hinds LB 1001 GHG 127 0000 A 1001 Pepperl + Fuchs EG1-M2 FSU 14301 Pepperl + Fuchs EG1-M3 FSU17900 PTB Nr. 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Nr. 133245 Pepperl + Fuchs KCD2-SR-EX2 216720 Schaltverst?rker -unused/OVP Pepperl+Fuchs K-System KFDO-SD2-Ex2.1245 Teile-Nr. 186183 -OVP- Pepperl+Fuchs K-System KFD2-SR2-Ex2.2S -OVP- Pepperl+Fuchs K-System KFD2-UT2-1 Teile-Nr. 116916 -OVP- Pepperl + Fuchs KFD2-UT2-EX2 Temperaturmessumformer Pepperl+Fuchs K-System KFU8-CRG-Ex1D Teile Nr. 51099S -OVP- Pepperl+Fuchs K-System KFD2-GUT-Ex1.D Teile-Nr. 113604 -OVP- Pepperl+Fuchs Ventilsteuerbaustein KFD2-VM-EX1.35 Nr. 03925 -OVP- Pepperl+Fuchs K-System KFD2-SL2-Ex2B Part-Nr. 184259 -OVP versiegelt- Pepperl+Fuchs Inductive Proximity Switch 3RG4022-3AF01-PF -OVP- Pepperl+Fuchs K-System KFD2-SL2-Ex2B Part-Nr. 184259 Pepperl + Fuchs K-System KFD0-RO-Ex2 Part. Nr. 38975S -unused- Pepperl+Fuchs K-System KFD0-CS-Ex2.52 Part. 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