描述
由于生產操作管道化、流程化、全封閉等特點,尤其是現代化的企業(yè)自動化水平很高,工藝操作與檢測儀表密切相關,工藝人員通過檢測儀表顯示的各類工藝參數,諸如反應溫度、物料流量、容器的壓力和液位、原料的成分等來判斷工藝生產是否正常,產品的質量是否合格,根據儀表指示進行加量或減產,甚至停車。
儀表指示出現異?,F象(指示偏高、偏低,不變化,不穩(wěn)定等),本身包含兩種因素:一是工藝因素,儀表正確的反映出工藝異常情況;二是儀表因素,由于儀表(測量系統(tǒng))某一環(huán)節(jié)出現故障而導致工藝參數指示與實際不符。這兩種因素總是混淆在一起,很難馬上判斷出故障到底出現在哪里。儀表維護人員要提高儀表故障判斷能力,除了對儀表工作原理、結構、性能特點熟悉外,還需熟悉測量系統(tǒng)中每一個環(huán)節(jié),同時,對工藝流程及工藝介質的特性、設備的特性應有所了解,這能幫助儀表維護。
總之,分析現場儀表故障原因時,要特別注意被測控制對象和控制閥的特性變化,這些都可能是造成現場儀表系統(tǒng)故障的原因。所以,我們要從現場儀表系統(tǒng)和工藝操作系統(tǒng)兩個方面綜合考慮、仔細分析,檢查原因所在。
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主營:世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國AB)系列產品》
②Schneider(施耐德電氣)系列產品》
③General electric(通用電氣)系列產品》
④Westinghouse(美國西屋)系列產品》
⑤SIEMENS(西門子系列產品)》
⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⑧Invensys Foxboro(福克斯波羅):I/A Series系統(tǒng),FBM(現場輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數模轉換、輸入/輸出信號處理、數
據通信及處理等。Invensys Triconex:冗余容錯控制系統(tǒng)、基于三重模件冗余(TMR)
結構的zui現代化的容錯控制器。
⑨Siemens(西門子):Siemens MOORE,Siemens Simatic C1,Siemens數控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂):Indramat,I/O模塊,PLC控制器,驅動模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
REXROTH INDRAMAT 245379 CABLE
REXROTH INDRAMAT 245870 CONNECTOR KIT/CABLE
REXROTH INDRAMAT 246342 COMMUNICATIONS PROCESSOR
REXROTH INDRAMAT 246942 PC BOARD CDR 2/7
REXROTH INDRAMAT 247025 PC BOARD JUT 7
REXROTH INDRAMAT 248109 SERVO MOTOR
REXROTH INDRAMAT 248153 INPUT MODULE FOR RECO
REXROTH INDRAMAT 248154 OUTPUT MODULE FOR RECO
REXROTH INDRAMAT 248921 MODULE
REXROTH INDRAMAT 250465 BLOWER
REXROTH INDRAMAT 250722 RESOLVER
REXROTH INDRAMAT 250812 CONNECTOR KIT/CABLE
REXROTH INDRAMAT 251188 BLOWER ASSEMBLY
REXROTH INDRAMAT 251872 SERVO POWER SUPPLY
REXROTH INDRAMAT 251873 SERVO POWER SUPPLY
REXROTH INDRAMAT 253158 DIGITAL AC SERVO CONTROLLER
REXROTH INDRAMAT 253824 MOTOR 2000RPM SERVO FEEDBACK WO/BRAKE
REXROTH INDRAMAT 253920 SERVO MOTOR
REXROTH INDRAMAT 253923 AMPLIFIER MODULE
REXROTH INDRAMAT 254681 FACE-PLATE
REXROTH INDRAMAT 255064 MOTOR
REXROTH INDRAMAT 256108 SPINDLE DRIVE
REXROTH INDRAMAT 256365 MODULE WITH FIBER OPTIC CONNECTORS
REXROTH INDRAMAT 256450 256450 CTA 03.1B-DLC
REXROTH INDRAMAT 256985 PC BOARD
REXROTH INDRAMAT 257140 AC SERVO POWER SUPPLY
REXROTH INDRAMAT 257326 PROCESSOR MODULE
REXROTH INDRAMAT 257328 AXIS PROCESSOR MODULE
REXROTH INDRAMAT 260465 SERVO MOTOR
REXROTH INDRAMAT 263529 MOTOR
REXROTH INDRAMAT 265340 SERVO CONTROL
REXROTH INDRAMAT 265406 UNIT
REXROTH INDRAMAT 266805 SERVO CONTROL
REXROTH INDRAMAT 267341 PC BOARD
REXROTH INDRAMAT 268887 CONTROL
REXROTH INDRAMAT 268889 CONTROL
REXROTH INDRAMAT 271426 ELEC COMPONENT
REXROTH INDRAMAT 271639 ENCODER
REXROTH INDRAMAT 276889 CONNECTOR
REXROTH INDRAMAT 276890 CONNECTOR
REXROTH INDRAMAT 277697 CABLE
REXROTH INDRAMAT 278760 FIRMWARE MOD
REXROTH INDRAMAT 278984 CABLE
REXROTH INDRAMAT 284830 SERVO MOTOR
REXROTH INDRAMAT 285402 CARD DISPLAY
REXROTH INDRAMAT 2AD160B-B35OB2-BS03-C2N1 MOTOR 460VAC 30KW 1.5-6K RPM
REXROTH INDRAMAT 2AD160CB350B1BS0 SERVO
REXROTH INDRAMAT 2G-1125-1R-B3-3302-H2 SERVO MOTOR
REXROTH INDRAMAT 308241 FIB OPTIC MOD
REXROTH INDRAMAT 308248 FIB OPTIC MOD
REXROTH INDRAMAT 31220901 ENCODER
REXROTH INDRAMAT 610085 CONNECTOR KIT/CABLE
REXROTH INDRAMAT 610110 CONNECTOR KIT/CABLE
REXROTH INDRAMAT 610121 CONNECTOR KIT/CABLE
REXROTH INDRAMAT 610123 CONNECTOR KIT/CABLE
REXROTH INDRAMAT A2D300AD0201 FAN ASSEMBLY 230/400V 280/270W 2650/2800RPM
REXROTH INDRAMAT AC-SERVO Item
REXROTH INDRAMAT APRB-02-02 INTERFACE SERCOS
REXROTH INDRAMAT APRB02-02-FW AXIS PROCESSOR MODULE
REXROTH INDRAMAT AS161/006-000 PROGRAMMING MODULE
REXROTH INDRAMAT BGRNTB02-00 PRINTED CIRCUIT CARD FOR MT-CNC02/03
REXROTH INDRAMAT BSM150GB120DN11 BLOCK
REXROTH INDRAMAT BTM03.1-BA-TA-TA-TA-TA-VA-2FF-FW OPERATOR INTERFACE/PUSHBUTTON STATION
REXROTH INDRAMAT BTM1.01/00 CONTROL PANEL WITH EMERGENCY STOP
REXROTH INDRAMAT BZM01.1-07 SERVO CONTROLLER ECODRIVE AC
REXROTH INDRAMAT BZM01.3-01-07 SERVO CONTROL
REXROTH INDRAMAT CCD01.1-KE00-01 RACK 4 SLOT
REXROTH INDRAMAT CCD01.1-KE02-01-FW MOTION CONTROLLER W/PLUG-IN FRAME WO/FIRMWARE
REXROTH INDRAMAT CCD01.1KE19-01FW SERVO DRIVE
REXROTH INDRAMAT CCD01.1-KE20-01-FW SERVO CONTROLLER
REXROTH INDRAMAT CLC-D02.2 PC BOARD
REXROTH INDRAMAT CLC-D02.2A-FW CARD SERIAL COMMUNICATION
REXROTH INDRAMAT CLC-D02.3 MODULE INPUT CARD