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集散控制系統(Distributed Control System-DCS)集計算機技術、控制技術、通信技術、CRT技術于一體,廣泛應用于生產過程控制系統。隨著計算機和網絡技術的飛速發展,產生了一種新型的控制系統———現場總線控制系統(Fieldbus Control System-FCS)。但國內生產企業的情況是:大多數企業還處于模擬儀表和人工控制的階段,采用DCS控制系統的企業仍是少數。由于DCS應用廣泛、技術成熟,在現有的技術條件和市場條件下,FCS還不能完全取代DCS,而且目前現場總線設備和系統還十分昂貴。因此,除了新建企業外,國內企業在較長時間不可能全面采用現場總線技術,而必須走逐步發展、過渡的道路。 ??我們在上海石化股份公司環保部水質凈化廠監控系統的改造項目中,對3個生產單元已有的DCS和PLC進行改造,增加通信功能,實現總調度室對各生產裝置的集中監控。 2?系統改造方案?? 根據水質凈化廠各生產單元的功能和建設階段,分為廠外調節池、污水一段、氧化溝、四期污水處理、污泥脫水、污泥干化6個生產單元。另外,在廠部設有總調度室,但是總調度室的監控水平較為落后,改造之前基本上不能對各個生產單元進行監控。為了適應生產需要,提高生產效率,改善操作條件,加強監控手段,確保各生產裝置的正常運行,急需對各生產單元和總調度室進行技術和設備的更新改造,從而能在總調度室對各裝置進行監視管理,及時了解各裝置的運行情況,達到指揮及時和調度準確的目的。 2.1?現場監控系統的改造 ??現場監控系統的改造要充分利用原有儀表和設備,主要考慮可靠性和實時性。首先對自控程度較高的3個單元進行改造(系統結構見圖2—1): ??四期污水處理生產單元控制設備配置了兩套ALLEN-BRADELY公司PLC設備。25塊開關量輸入信號卡,可采集384點信號;7塊開關量輸出信號卡,可輸出112點信號;3塊模擬量輸入信號卡,可采集24點信號。兩套AB—PLC通過DH+(數據高速通道)實現數據共享。在原有的現場控制計算機上分別增加以太網卡,通過以太網將實時數據送到總調度室處理。??輸出192點信號;1塊模擬量輸入信號卡,可采集8點信號。系統運行采用遙控開關操作與全模擬流程盤顯示。在原有的Siemens S5-115UPLC上增加RS-232通訊模塊(CP524)和1臺現場操作站,用點對點方法連接,使PLC的數據通過現場操作站送到以太網上,與總調度室監控計算機通信。但RS-232傳輸速率只有9600bps,操作站僅對現場起到監視作用。
21215 APPLIED MATERIALS ASSY, RF PEAK VOLTAGE, CATHODE, DPS 0090-091658191 TELEFRANK MODUL ST32 013501-167-27
11453 PARKER COMPUMOTOR, 4-AXIS INDEXER AT6400-AUX1-120V
10580 ADVANCED ILLUMINATION CONSTANT CURRENT SOURCE, 24 VDC CS420
13051 LAM RESEARCH 12-SLOT BAR STOCK MANF W/8 X SY114-5MOU 772-801282-001
3527 VERTEQ FREQUENCY GENERATOR 10 AMPS ST800-C1-MC2-QTZ
17250 CARL ZEISS AUXILIARY OBJECTIVE AXIO EYEPIECE, 44 48 30 444830
21495 TOKYO ELECTRON ORIFICE, PTFE, FLOW PICKUP .040 416442-040
6590 HORIBASTEC SERIES Z700 MFC GAS: H2 1000SCCM AMAT 0190-41105 SEC-Z714AGX
20587 OEM PCB ASSY VTR-P3AP3E
20796 SANKEN PCB ASSY PKG5 PDA10112A
21116 APPLIED MATERIALS HARNESS PRODUCER CABLE, 2.1M 0140-12645
20794 SANKEN PCB ASSY PKG3 PDA10110A
2106 OMRON TEMPERATURE CONTROLLER E5ZT-N08TC01-1
2223 APPLIED MATERIALS ENDURA 2 ELECTRONICS TOWER CCT PSU (101714-01) 0190-34624
14420 GEMS SENSOR FLOWMETER FLOW SENSOR 217362
20514 PICKERING INTERFACES PCB, 3U BACKPLANE 24HP SPLIT 013-422
2244 CHUO SEIKI REMOTE CONTROLLER 2-AXIS X-Y STAGE MOTOR DRIVER MMC-K MMC-2K
11610 COSEL 5V/5A 24V/9A POWER SUPPLY LEB225F-0524
6292 UNIT MFC 8161 UFC-8161C
982 CAMCO VARI-PAK DC MOTOR SPEED CONTROL W/O ADJ KNOB PN:92A61633010000 NEMA-12
1695 FUJIKIN DIAPHRAGM VALVE, TYPE N.C., O.P. 0.34~0.69MPA 100095
13475 APPLIED MATERIALS CABLE DIGITAL #1 GAS PANEL, CABLE 0150-76222
7885 PARKER HANN COMPUMOTOR DRIVE OEM SERIES CP*OEM750X-10624
7116 APPLIED MATERIALS PUMPING RING,PMD ETERNA,PRODUCER SE 0020-31178
12838 TOKYO ELECTRON PCB, TAB22A-1/PURF2-LF W/ 2X 2L81-050032-11 2L81-050039-11
274 BROOKS EQUIPE ATMOSPHERIC TRACK ASSY 6-0000-4298-PC TRA 076-LPD-BST
5813 APPLIED MATERIALS HONEYCOMB COLLIMATOR, 1/2" HEX: 1,8 INCH 0020-23811
22108 OEM MTR ASSY W/ GEARHEAD 12VDC 30RPM 140611 36JX30K100G6.35D/3685-1230
7906 NOVELLUS GATE, VAT INSERT CASS W/ PERFL 60-10312-00 78510-R1
1660 RIKEN KEIKI GAS INDICATOR MODULE, RKP-62069 EC-582
20435 APPLIED MATERIALS LEG CRYO RESTRICTOR HIGH PRESS W/B CH 0020-22672
19052 VARIAN ASSY E17275912
16325 OERLIKON LEYBOLD TURBOVAC TURBO PUMP TMP 361
11735 APPLIED MATERIALS CABLE, 24VAC, REAR SERVICE LAMP 0150-35662
21084 LAM RESEARCH CABLE ASSY 853-194814-101
20780 EATON PCB, FLAG FARADAY FILTER BOARD, 1517370 1417370
21105 APPLIED MATERIALS CABLE ASSY, 2.8M 0150-29976
21106 LAM RESEARCH CABLE ASSY, 0.4M 853-021132-711
20563 POWERWARE PCB, EE FRONT CONTROL PANEL, 118302709 101072887-010
6095 HORIBA-STEC MFC SEC-Z1ODW SEC-Z313M
21901 TERADYNE PCB ASSY, TW905 950-905-01
336 SMC FILTER:AF40-04 x2 SS VALVE:AV4000-04-5DZC AC40-SGF266
11781 HP PCB AGILENT UTG PIN BOARD, 33-3639 E3121-66501
4285 PULS POWER SUPPLY DPD 155.131
12172 FESTO LF FILTER, D SERIES, 5UM, 240 PSI, P/N: 192558 LF-D-5M-MIDI
12887 FUJIKIN DIAPHRAGM VALVE, TYPE N.C., O.P. 0.34~0.69MPA 22779
6111 UNIT MASS FLOW CONTROLLER UFC-1100AN
10669 OMRON PHOTOELECTRIC SWITCH SENSOR E3S-BT61-L
13873 APPLIED MATERIALS ENDURA/CENTURA PIK 8IN SNNF COMSUMABLE K NEW 0040-00723
16128 APPLIED MATERIALS ELBOW 90 DEG FLANGE NW40/NW50 0221 0227-03335
11261 VERIFLO HIGH PURITY REGULATOR, P/N: 45800483 SPR861W3P01TS12FSMTS12V
15980 MTROLA PCB SINGLE BD COM 84-W8620F01B 01-W3620F33B MVME 167P-34SE
13295 TEKTRONIX PCB, DRAM/PROCESSOR BOARD 671-2771-00
13395 LAM RESEARCH PWR, RF GENERATOR CABLE 853-001583-016
15931 LAM RESEARCH RF CABLE, 6.4M 834-036619-021
16118 APPLIED MATERIALS BASE, HEATER, GIGA-FILL SACVD 0021-36008
16929 APPLIED MATERIALS FLOW SENSOR MAINFRAME UMBILICAL 0150-76455
16463 APPLIED MATERIALS CABLE ASSY CHY ENABLE VLV 0150-24396
16464 APPLIED MATERIALS CABLE ASSY CHY ENABLE VLV 0150-24394
16456 APPLIED MATERIALS CABLE ASSY CHX FNABLE VLV 0150-29985
16972 APPLIED MATERIALS WELDMENT VLV MANF 4 STATION 0010-47446
19559 LAM RESEARCH BAFFLE PLATE 8'' 715-011913-086-C
15188 APPLIED MATERIALS MTR ENCODER ASSY ROBOT EXTENSION 0090-02953
3389 ASYST FRONT WAFER LOADER CASSETTE NEST PT 2080
146 LAM RESEARCH PCB CONNECTION CARD 810-17061-1
12852 NOVELLUS SYSTEM CONTROLLER, P166/64, 24V 02-127707-00
9570 OMRON PA203 PROGRAMMABLE CONTROLLER CPU43 W/ OCH, OC222, IPS01, SYSMAC CQM1
10957 COSEL POWER SUPPLY BOARD LEB150F-0512 G
14798 APPLIED MATERIALS COVER SENSOR WBLL 0020-13977
7593 WATLOW TEMPERATURE CONTROLLER TYPE 4X AND 12 ENCLOSURE EC12RG-AAAAEE
15615 APPLIED MATERIALS LIFT PLATE FIXED LIFT PIN 200MM PROD 0200-02577
T94 BROOKS BARATRON, PRESSURE TRANSDUCER, CMC SERIES,10 TORR CMCAT1122AR
14695 TOKYO ELECTRON PCB, DATA-IN2.. TTL-T0062 2181-020169-11
16709 APPLIED MATERIALS CABLE ASSY, RPS2, NF3, OVER PRESSURE 0150-76428
19884 APPLIED MATERIALS HTR INJECTION VALVE,LIQ INJECTOR 50W-120 1410-01054
16752 APPLIED MATERIALS CABLE ASSY, ECI PCB TO EV MANI. 418660 0150-10384
15614 APPLIED MATERIALS THREADED NOZZLE ALL CERAMIC 2.55L 110% NEW 0200-03018
12259 FUJIKIN PNEUMATIC ACTUATOR BELLOWS VALVE, O.P. 0.34 ~ 0.69MPA 100087
8980 APPLIED MATERIALS MKS REV3.0 G4 PLUS 4-PORT UPA 300MM REFL 0190-38324W
11434 EDWARDS PUMP DISPLAY TERMINAL, 5WAY XLR PLUG D37280700
12774 SMC HIGH VACUUM VALVE XYD-80K-M9PA
注:聯系我時,請說是在“傲立機床網”上看到的,謝謝!