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集散控制系統(tǒng)(Distributed Control System-DCS)集計算機技術(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)過程控制系統(tǒng)。隨著計算機和網(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)場總線控制系統(tǒng)(Fieldbus Control System-FCS)。但國內(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)條件和市場條件下,F(xiàn)CS還不能完全取代DCS,而且目前現(xiàn)場總線設(shè)備和系統(tǒng)還十分昂貴。因此,除了新建企業(yè)外,國內(nèi)企業(yè)在較長時間不可能全面采用現(xiàn)場總線技術(shù),而必須走逐步發(fā)展、過渡的道路。 ??我們在上海石化股份公司環(huán)保部水質(zhì)凈化廠監(jiān)控系統(tǒng)的改造項目中,對3個生產(chǎn)單元已有的DCS和PLC進行改造,增加通信功能,實現(xiàn)總調(diào)度室對各生產(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各個生產(chǎn)單元進行監(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,加強監(jiān)控手段,確保各生產(chǎn)裝置的正常運行,急需對各生產(chǎn)單元和總調(diào)度室進行技術(shù)和設(shè)備的更新改造,從而能在總調(diào)度室對各裝置進行監(jiān)視管理,及時了解各裝置的運行情況,達到指揮及時和調(diào)度準(zhǔn)確的目的。 2.1?現(xiàn)場監(jiān)控系統(tǒng)的改造 ??現(xiàn)場監(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時性。首先對自控程度較高的3個單元進行改造(系統(tǒng)結(jié)構(gòu)見圖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塊開關(guān)量輸入信號卡,可采集384點信號;7塊開關(guān)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(shù)據(jù)高速通道)實現(xiàn)數(shù)據(jù)共享。在原有的現(xiàn)場控制計算機上分別增加以太網(wǎng)卡,通過以太網(wǎng)將實時數(shù)據(jù)送到總調(diào)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(tǒng)運行采用遙控開關(guān)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(xiàn)場操作站,用點對點方法連接,使PLC的數(shù)據(jù)通過現(xiàn)場操作站送到以太網(wǎng)上,與總調(diào)度室監(jiān)控計算機通信。但RS-232傳輸速率只有9600bps,操作站僅對現(xiàn)場起到監(jiān)視作用。
11573 ALLEN-BRADLEY COMPACTLOGIX LOGIX 5330 PROCESSOR UNIT 1769-L3021559 TERADYNE PCB ASSY, TW905 950-905-01
12456 ASML PCB, MOTION CONTROL BOARD 4022.436.6467
21648 BROOKS PCB ASSY (D-CONN) FOR 5851EM SNSR ASSY 5851EMA3EKTHDKC S097Y847AAA
16459 APPLIED MATERIALS CABLE ASSY P54 CHX INLK MANF 0150-25933
16468 APPLIED MATERIALS CABLE ASSY CH X GP DNET HUB 0150-25320
16467 APPLIED MATERIALS CABLE ASSY CH Y GP DNET HUB 0150-25322
16457 APPLIED MATERIALS CABLE ASSY P54 CHY INTK MANF 0150-25934
18931 LAM RESEARCH CABLE ASSY RF COAXIAL CABLE RIGHT 834-030819-018
9447 SIEMENS PROFISAFE 4/8 F-DI 24VDC INPUT MODULE 6ES7138-4FA04-0AB0
5938 SANYO DENKI SUPER R DC SERVO MOTOR 200W,75V,3.6A,3000RPM R720-012EM
3644 YAMATAKE-HONEYWELL TEMPERATURE CONTROLLER SDC40
11277 ENTEGRIS VALVE - PILOT 3-WAY SAMPL 202-14
10695 LAM RESEARCH RING GROUND CHAMBER 715-330889-002
11825 KLA-TENCOR MICRO POINT PRO FELL PROBE HEAD, TYPE F 50-0002-10
3353 PARKER FLEX INDEX OR X-AXIS SLIDE 081-3473
13025 TELCO MOTION STEPPER MOTOR, 1.8°/STEP, 4.0V, 0.95AMPS 4H4018S0956F
T36 TYLAN GENERAL PR SNSR TRANSD LRC: 685-092784-001 0-20 TORR CDL-12S13
17557 BANNER EMITTER & LO PNP RECEIVER SET 63155 VS2KAP5V_W/30
19517 PHILIPS PCB PC CIRCUIT BD DFSA 4022 192 6039 NM1E6N PR.9633 PR32.4E-VO
2049 OPTO 22 PCB, CIRCUIT BOARD FE, G4 IDC5(X3), G4 OAC5(X4), G4 ODC5 G4PB24
14219 THK BALL SCREW BT2005A AX-6E11
T262 MKS BARATRON PRESSURE TRANSDUCER, 30TORR 727A31TGA2FB
3229 METROHM ULTRA FILTRATION UNIT 833
3987 SMC GUIDED OIL PRESS CYLINDER MGCLB32-75-R-H7A2SAPC
10445 EUTECH INSTRUMENTS CYBERSCAN WATERPROOF PORTABLE METER COND600
20947 APPLIED MATERIALS CABLE ASSY 0150-45365
1421 MKS HIGH VACUUM PNEUMATIC VALVE 93-6001
3083 MITSUBISHI PCB PLC A1SJCPU-S3-A A1SJHCPUPW
12198 FUJIKIN DIAPHRAGM VALVE, TYPE N.C., O.P. 0.39~0.59 MPA 23727
1328 SMC REGULATOR IT1011-N31-DIM00375
11307 KOGANEI AIR OPERATED VALVE F-DAVP125-3W
10662 APPLIED MATERIALS HIGH EFFICIENCY RF MATCH-BIAS 0010-13627
20268 APPLIED MATERIALS KIT HDWR. ISO-KF40-NW50 LL/XFER 0242-86358
12472 PANASONIC PCB, CPU PROCESSING CARD 581B357C
4268 PORTER PRESSURE REGULATOR W/ASHCROFT GAUGE 250-3074 8310
8729 PEARL KOGYO TUNER CONTROLLER (5139-000072-31) ZDK-916R2C(T02)
14772 PORTESCAP BRUSHLESS STEPPER MOTOR K92211-P2
7889 APPLIED MATERIALS CHUCK ASP 200MM TOP MOUNT TYPE 0021-35819
18319 TEXAS MICRO PCB P54C PENTIUM (RAINBOW II) CPU 950/F27411C
21305 TALON DIA BLK VLVS ASSY TYPE N.C. O.P. 0.45-0.86MPA 143479 03-33-4007
21453 GREENE TWEED BONDED GATE- LARGE O-RING STYLE 5641A1412SSE38
5339 LAM RESEARCH BAF, BARE AL, 2300 MW STRPR 715-026588-510
21880 APPLIED MATERIALS HARNESS ASSY 20 SLOT SYS CONTROLLER 0140-75105
3541 ALLEN-BRADLEY REMOTE I/O ADAPTER MODULE 1771-ASB C
9087 KULICKE & SOFFA DUAL HS 2A/2A BOARD, 8002-4103 N08002-4103-000-00
21735 ELECTROCRAFT TORQUEPOWER STEPPING MTR W/ BALL TPP23-90-002
22186 AXCELIS SOURCE SPACER 170115590
15272 KEYENCE DIGITAL CMOS LASER SENSOR GV-H45
T262 MKS BARATRON PRESSURE TRANSDUCER, 30TORR 727A31TGA2FB
3229 METROHM ULTRA FILTRATION UNIT 833
20947 APPLIED MATERIALS CABLE ASSY 0150-45365
1421 MKS HIGH VACUUM PNEUMATIC VALVE 93-6001
12427 PRI AUTOMATION TTR 200 POWER DISTRIBUTION ASSY 2005-0487
20268 APPLIED MATERIALS KIT HDWR. ISO-KF40-NW50 LL/XFER 0242-86358
9816 NOVELLUS HEATER PEDESTAL 02-033134-00F
6024 AERA MFC FC-786 MASS FLOW CONTROLLER TC FC-786
4268 PORTER PRESSURE REGULATOR W/ASHCROFT GAUGE 250-3074 8310
10605 FUJIKIN DIAPHRAGM VALVE TYPE N.C. O.P 0.34~0.49MPA 542926
14772 PORTESCAP BRUSHLESS STEPPER MOTOR K92211-P2
7825 TOKYO ELECTRON ELECTROSTATIC CHUCK 05041AA-90013
7889 APPLIED MATERIALS CHUCK ASP 200MM TOP MOUNT TYPE 0021-35819
18319 TEXAS MICRO PCB P54C PENTIUM (RAINBOW II) CPU 950/F27411C
21305 TALON DIA BLK VLVS ASSY TYPE N.C. O.P. 0.45-0.86MPA 143479 03-33-4007
7827 TOKYO ELECTRON ELECTROSTATIC CHUCK 89080AA-90013
7828 TOKYO ELECTRON ELECTROSTATIC CHUCK 89068AA-90013
5848 NOVELLUS EBR TEACH WAFER 71-148712-00
21453 GREENE TWEED BONDED GATE- LARGE O-RING STYLE 5641A1412SSE38
4785 BIMBA CYLINDER F0-041.5-3
21880 APPLIED MATERIALS HARNESS ASSY 20 SLOT SYS CONTROLLER 0140-75105
3541 ALLEN-BRADLEY REMOTE I/O ADAPTER MODULE 1771-ASBC
9087 KULICKE & SOFFA DUAL HS 2A/2A BOARD, 8002-4103 N08002-4103-000-00
21735 ELECTROCRAFT TORQUEPOWER STEPPING MTR W/ BALL TPP23-90-002
1275 VEXTA MOTOR BRUSHLESS DC MOTOR HBLM210K-GN
7695 SMC PNEU AIR MANF W/ SUPPLY PRESS(SZ3260-5-M5-X15)(8SLOT) EX140-SSD1-X16
3073 NSK ESA SERVO DRIVER ESA-Y3008T23-21
22186 AXCELIS SOURCE SPACER 170115590
5839 TOKYO ELECTRON PCB ASSEMBLY C/W GAS FLOW CHART FLOW MC-31023 2109-320869-12
6240 MYKROLIS MFC INTELLIFLOW 3XP AARGD40W1
15272 KEYENCE DIGITAL CMOS LASER SENSOR GV-H45
19185 APPLIED MATERIALS PIN400+M2 ASSY 0090-B4582
7898 HORIBA-STEC INJECTION VALVE VC-1410-UC-10
8925 PFEIFFER BALZERS TURBO MOLECULAR HIGH VACUUM PUMP (PM P02 095) TPH 062
20505 UNIPHASE HELIUM-NEON LASER HEADS W/O CABLE ADAPTER 1135P-2478
49 KLA-TENCOR PCB HEURIKON HK68/V2FA MICROCOM B-SIZE 712-450673-00
21069 CTI-CRYOGENICS ON-BD 8F CRYOPUMP W/ 8112580G001 (REFURBISHED) 8116199G001R
14856 APPLIED MATERIALS CYL AIR 1 1/8BOREZ1-1/4 STRK 3020-01093
13102 PALL ULTRAMET-L4000 FILTER ASSY, 3000 PSIG, ?" GASKET SEAL GLFF4000VM4
18814 NOVELLUS CABLE ASSY, MFC N J8, MFC N, 1.5M 03-427261-22
22136 SHINA MICROSTEP DRIVER S202
15795 OGURA CLUTCH ELECTROMAGNETIC BRAKE CLUTCH RNB 1.2G-05
2196 APPLIED MATERIALS FITTINGS, HOSE COUPLING C100R6-MC 3300-01237
14995 TOKYO ELECTRON PCB, T-BAWL CONTROL UNIT, MDIF-01A, 118100054012 MDIF-01A-1
2637 DENICHI INDUSTRIAL COMPUTER EN-6138
6079 AERA MFC FC-PA786 FC-PA786T-BF
5540 OMRON TYPE 4 SAFETY LIGHT CURTAIN F3SN-A0472P25-L
注:聯(lián)系我時,請說是在“傲立機床網(wǎng)”上看到的,謝謝!