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集散控制系統(tǒng)（Distributed Control System－DCS）集計(jì)算機(jī)技術(shù)、控制技術(shù)、通信技術(shù)、CRT技術(shù)于一體，廣泛應(yīng)用于生產(chǎn)過(guò)程控制系統(tǒng)。隨著計(jì)算機(jī)和網(wǎng)絡(luò)技術(shù)的飛速發(fā)展，產(chǎn)生了一種新型的控制系統(tǒng)———現(xiàn)場(chǎng)總線控制系統(tǒng)（Fieldbus Control System－FCS）。但國(guó)內(nèi)生產(chǎn)企業(yè)的情況是：大多數(shù)企業(yè)還處于模擬儀表和人工控制的階段，采用DCS控制系統(tǒng)的企業(yè)仍是少數(shù)。由于DCS應(yīng)用廣泛、技術(shù)成熟，在現(xiàn)有的技術(shù)條件和市場(chǎng)條件下，F(xiàn)CS還不能完全取代DCS，而且目前現(xiàn)場(chǎng)總線設(shè)備和系統(tǒng)還十分昂貴。因此，除了新建企業(yè)外，國(guó)內(nèi)企業(yè)在較長(zhǎng)時(shí)間不可能全面采用現(xiàn)場(chǎng)總線技術(shù)，而必須走逐步發(fā)展、過(guò)渡的道路。 ??我們?cè)谏虾Ｊ�化股份公司環(huán)保部水質(zhì)凈化廠監(jiān)控系統(tǒng)的改造項(xiàng)目中，對(duì)3個(gè)生產(chǎn)單元已有的DCS和PLC進(jìn)行改造，增加通信功能，實(shí)現(xiàn)總調(diào)度室對(duì)各生產(chǎn)裝置的集中監(jiān)控。 2?系統(tǒng)改造方案??   根據(jù)水質(zhì)凈化廠各生產(chǎn)單元的功能和建設(shè)階段，分為廠外調(diào)節(jié)池、污水一段、氧化溝、四期污水處理、污泥脫水、污泥干化6個(gè)生產(chǎn)單元。另外，在廠部設(shè)有總調(diào)度室，但是總調(diào)度室的監(jiān)控水平較為落后，改造之前基本上不能對(duì)各個(gè)生產(chǎn)單元進(jìn)行監(jiān)控。為了適應(yīng)生產(chǎn)需要，提高生產(chǎn)效率，改善操作條件，加強(qiáng)監(jiān)控手段，確保各生產(chǎn)裝置的正常運(yùn)行，急需對(duì)各生產(chǎn)單元和總調(diào)度室進(jìn)行技術(shù)和設(shè)備的更新改造，從而能在總調(diào)度室對(duì)各裝置進(jìn)行監(jiān)視管理，及時(shí)了解各裝置的運(yùn)行情況，達(dá)到指揮及時(shí)和調(diào)度準(zhǔn)確的目的。 2．1?現(xiàn)場(chǎng)監(jiān)控系統(tǒng)的改造 ??現(xiàn)場(chǎng)監(jiān)控系統(tǒng)的改造要充分利用原有儀表和設(shè)備，主要考慮可靠性和實(shí)時(shí)性。首先對(duì)自控程度較高的3個(gè)單元進(jìn)行改造（系統(tǒng)結(jié)構(gòu)見(jiàn)圖2—1）： ??四期污水處理生產(chǎn)單元控制設(shè)備配置了兩套ALLEN－BRADELY公司PLC設(shè)備。25塊開(kāi)關(guān)量輸入信號(hào)卡，可采集384點(diǎn)信號(hào)；7塊開(kāi)關(guān)量輸出信號(hào)卡，可輸出112點(diǎn)信號(hào)；3塊模擬量輸入信號(hào)卡，可采集24點(diǎn)信號(hào)。兩套AB—PLC通過(guò)DH＋（數(shù)據(jù)高速通道）實(shí)現(xiàn)數(shù)據(jù)共享。在原有的現(xiàn)場(chǎng)控制計(jì)算機(jī)上分別增加以太網(wǎng)卡，通過(guò)以太網(wǎng)將實(shí)時(shí)數(shù)據(jù)送到總調(diào)度室處理。??輸出192點(diǎn)信號(hào)；1塊模擬量輸入信號(hào)卡，可采集8點(diǎn)信號(hào)。系統(tǒng)運(yùn)行采用遙控開(kāi)關(guān)操作與全模擬流程盤(pán)顯示。在原有的Siemens S5－115UPLC上增加RS－232通訊模塊（CP524）和1臺(tái)現(xiàn)場(chǎng)操作站，用點(diǎn)對(duì)點(diǎn)方法連接，使PLC的數(shù)據(jù)通過(guò)現(xiàn)場(chǎng)操作站送到以太網(wǎng)上，與總調(diào)度室監(jiān)控計(jì)算機(jī)通信。但RS－232傳輸速率只有9600bps，操作站僅對(duì)現(xiàn)場(chǎng)起到監(jiān)視作用。Siemens 3VL9300-3MN00

REXROTH MHD090B-058-PP1-UN R911276758 REMAN

REXROTH MHD112A-024-PG0-BN SERVO MOTOR

REXROTH MKD041B-144-GP0-KN UNMP

REXROTH MKD041B-144-KP1-KS R911295887 NSNP

REXROTH MSK071E-0300-NN-M2-UG1-RNNN SERVO MOTOR

REXROTH MSK071E-0300-NN-M2-UGL-RNNN

REXROTH MSK071E-0300-NN-S2-UG0-RNNN PERMANENT MAGNET MOTOR

REXROTH MSK071E-0300-NN-S2-UG1-RNNN SERVO MOTOR

REXROTH Festo leadership Cylinder DFM-20-50-B-PPV-A-KF
Rexroth druckreduzierventil DR6DP2-53/25Y
Baumer Inductive Sensor IFFM 08P1701/O1L
PEPPERL + Fuchs Inductive Proximity Switch nbn4-12gm50-e3-v1
ALTERNATOR 12 V 500w AVF Hungary Type 8002.11 t174
Festo Solenoid valve MN1H-5/2-D-1-C
Sick REFLECTION LIGHT BARRIER WTB4S-3P2231
Sick REFLECTION LIGHT BARRIER WTB4S-3P2261
Hydac Hydraulic Filter Filter Element 0330 R 010 BN3HC
Hydac Hydraulic Filter Filter Element 0110 R 010 BN/HC-2
Hydac Hydraulic Filter Filter Element 0160 R 010 BN3HC
Festo Swivel Pin. - BS finish-V1-63-A
Festo Check Valve HGL-3/8-QS-10
Hydraulic Pump orsta a 40 L tgl10859
Moeller (Eaton) 3 Terminals Z-EK/35/UL
Siemens  6es7 154-1aa01-0ab0
IMI/Norgren Solenoid Valve m/20152/6123 g1/4
Festo proportional pressure control valve Vppm - 6l-l-1-g18-0l6h-a4p-s1
BALLUFF Inductive Proximity Switch BES m08mi-psc40b-bp00,2-gs04
Festo Check Valve hgl-1/2 12941
Lard kompaktejektor SCP 20 NC as 10.02.02.00622/04
Festo Compact cylinders EMMZ - 16-10-p-a-s6
Festo ENGINE PIPE nebm-s1g9-e-10-le6
Siemens  6es7 331-7hf01-0ab0
Festo Pressure Sensor sde3-v1s-b-hq4-2p-m8
Festo Maintenance Unit FRC-1/4-D-7
Siemens  6ES7 223-1BF22-0XA0
4WE6J62/EG24K4 R900902828
4WE6E73-6X/EG24N9K4/A12
Schneider Motor Circuit Breaker gv2rt16
DI-Sorich reflection Button oht31 K 200 p1k
Festo Pressure Sensor Real Kick-p10r-g18-pb-k1
Festo and building block zk-2-r-m5 zk-2-r-m5
Festo field bus plug fbs-sub-9-gs-dp-b
Festo Solenoid valve vmpa 2-M1H-G-PI
Festo Solenoid valve MEH-3/2-1/8-P-B
Hydac Hydraulic Filter Filter Element 0110 R 010
OMRON g700 uod16-1
Festo Position Transmitter Smat - 8m-u-e-0,3 - m8d
BALLUFF Series Position Switch BNS-D02-R12-100-10 BNS00C9
Sew Eurodrive Gear Motor s37 dt71d8/bmg/tf
MSK071E-0450-NN-S1-UG0-NNNN SERVO MOTOR

REXROTH MSK100B-0200-NN-MLAP0-NNNN SERVO MOTOR 3 PHASE

REXROTH VT-DFPE-C-22/G24K0/2A0V/V R900705156 UNMP

RITTAL SK3217100 NSMP

RIX ESX20M-E012(7248) NSMP

ROCKWELL AUTOMATION 0-58820-2 MULTIBUS CONTROLNET MODULE

ROFIN 625-756130 LASER HEAD

ROSEMOUNT 2051TG5M2B21AE5M4T1A1037 NSMP

ROSEMOUNT 3051CG4A02A1AH2E5B3 PRESSURE TRANSMITTER

ROSEMOUNT 3051L2AG0XD11AAM5Q4 NSMP

ROSEMOUNT 3051L2AG0YD31AAS1E5F1 NSNP

ROSEMOUNT 3051L3AA0AD31AAS1M5E5 UNMP

ROSEMOUNT 3051L3AC0FD11AAM5 NSNP

ROSEMOUNT 3051S1LD2AA1A1020NEF71DA60K5M5 275PSI NSMP

ROSEMOUNT 3051S2CA4A7E12A1AK5M5C3 PRESSURE TRANSMITTER

ROSEMOUNT 3051TG4A2B32BK8P2Q4Q8CNQT NSMP

ROSEMOUNT 8711TTA010R1F0135N5 MAGNETIC FLOW TUBE

ROSEMOUNT 8732CT12N0C1 NSNP

ROSEMOUNT 8732EMT1A1N5M4Q4

ROSEMOUNT VORTEX 8800DF030SA1N1D1K5M5 FLOW METER FLANGED

ROTORK PROCESS CONTROLS SM-1020-D-1-0.7/350-90 DEG

SAFESCAN SS7B211MD0 LIGHT CURTAIN

SANYO DENKI P60B13200HBVAB NSNP

SANYO DENKI P60B13200HBVAB REMAN

SCANRAY 08-2526-01 NSMP

SCHNEIDER 394-9411 NJGF36150Y011 150A 600V (AS PICTURED) NSNP

SCHNEIDER 394-9412 NJGF36175Y011 175A 600V NSNP

SCHNEIDER ELECTRIC ATV212HD30N4 NSNP

SCHNEIDER ELECTRIC ATV71HD18N4Z (AS PICTURED) NSNP

SCHNEIDER ELECTRIC ATV930D15N4 NSNP

SCHNEIDER ELECTRIC COMPACT NS GCRNS6301600CB AUTOMATIC SWITCH *NEW IN BOX *

SCHNEIDER ELECTRIC MODBUS PLUS 416NHM30030A INTERFACE ADAPTER *FACTORY SEALED*

SCHNEIDER ELECTRIC SM-140/30/210/P0/45/M1/B1 SERVO MOTOR

SCHNEIDER ELECTRIC TSXP573634M NSMP

SCHUTTE & KOERTING 71-XC-18 NSNP

SEIDEL 60WKS-M240/50-RLG SERVO DRIVE

SEL 751A01A3A1A738512200 NSFS

SEL 751A51A1A3A73851231 110-250V 5A NSMP

SEW EURODRIVE DFT71C4 GEAR MOTOR w/ S37DT71C4 (AS-PICTURED)

SEW MFI21A/MM03/Z18A NSNP

SEW-EURODRIVE MAS51A030-503-50 MOVIDYN DRIVE (AS PICTURED)

SEW-EURODRIVE MDX61B0110-5A3-4-00 DRIVE (AS PICTURED)

SHINKO ELECTRIC AMD-L25-S-100-3504 NSNP

SICK CLV490-0011 BAR CODE SCANNER

SICK S30B-3011CA NSMP

SIEMENS 17HUG92NF14 NSMP

SIEMENS 1FK6084-6AZ21-9ZZ9-Z NSNP

SIEMENS 1FK7063-5AF71-1EB0 NSMP

注：聯(lián)系我時(shí)，請(qǐng)說(shuō)是在“傲立機(jī)床網(wǎng)”上看到的，謝謝！