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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(xiàng)目中,對3個生產(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(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)度室對各裝置進(jìn)行監(jiān)視管理,及時了解各裝置的運(yùn)行情況,達(dá)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(shí)時性。首先對自控程度較高的3個單元進(jìn)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(diǎn)信號;7塊開關(guān)量輸出信號卡,可輸出112點(diǎn)信號;3塊模擬量輸入信號卡,可采集24點(diǎn)信號。兩套AB—PLC通過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)場控制計(jì)算機(jī)上分別增加以太網(wǎng)卡,通過以太網(wǎng)將實(shí)時數(shù)據(jù)送到總調(diào)度室處理。??輸出192點(diǎn)信號;1塊模擬量輸入信號卡,可采集8點(diǎn)信號。系統(tǒng)運(yùn)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(diǎn)對點(diǎn)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(jì)算機(jī)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。
14772 PORTESCAP BRUSHLESS STEPPER MOTOR K92211-P27825 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
20967 APPLIED MATERIALS CABLE ASSY, P65 - MF PNEU, PRODUCER 0150-33207
9636 APPLIED MATERIALS PCB SIGNAL CONDITIONING BOARD SCHEM. REF: 0130-0100-01185
19958 ASYST PCB ASSY, PORT LOCK, SMIF 3200-1021-01
20814 OEM PCB, LED DISPLAY 21512DES10244C2
20313 NOVELLUS SPACER, ANODE CHAMBER, .300 15-263559-02
20299 APPLIED MATERIALS BLOCK, CHAMBER INTERFACE MOUNTING 0020-29801
20608 ESCAP DC SERVO MOTOR, HN.08.01 P310.170.50
135 MTROLA PCB MVME 167P-34SE W/01-W3060F MTROLA SINGLE 01-W3620F
11530 S&I FM2 FEEDER MANAGER II FMII-PD-MOD722-240
6034 CELERITY MFC UNIT 125 IFC-125C
2698 SMC MICRO MIST SEPARATOR REG W/ISE2-01-15 PR SWITCH AWD2000-02BG
4785 BIMBA CYLINDER F0-041.5-3
18934 LAM RESEARCH CABLE ASSY, 49P-X2 AC POWER, 1M 853-802770-002
19676 APPLIED MATERIALS HOSE, ASSY, CNDCTV, 3/8TFE/TBG,72LG, 1.8M 0010-37171
15027 PANALYTICAL XRD GLASS TUBE X-RAY,FINE FOCUS MO,2000W PW2215/20
12864 MATSUSHITA AC MTR 3W 2P 1.5μF W/ MICRO-EXCHANGE AIR PUMP LVM-IO M41A3S2L1
11052 VAT BUTTERFLY VALVE PRESSURE CONTROL CONTROLLER 61246-JAGC
2522 SPECTRA-PHYSICS PCB, OPTICS CONTROL BOARD, 10/99 00017 LZT-9004
9164 FUJI PXR-4 TEMPERATURE CONTROLLER (LOT OF 3) PXR4TEY1-1Y000
10800 APPLIED MATERIALS UNION COOLING WATER ROTARY 0760-01015
12570 NUPRO HIGH PURITY VALVE 6L-M1D-222P-11
12400 FUJIKIN 3 PORT BLOCK VALVE, TYPE N.C., O.P. 0.4~0.6 MPA 434062
21190 LEYBOLD TURBO MOLECULAR PUMP P/N: 85677 AMAT TURBOVAC 361C
6351 AERA MFC FC-PA786C FC-PA786CT-BF
3729 OMRON INTERACTIVE DISPLAY W/ NT600M-LB122 C200H I/F UNIT NT20M-DT121-V2
14300 APPLIED MATERIALS PEDESTAL,PIB,300MM A101 HEATER ASSY 0010-27432
6407 UNIT MFC ULTRA CLEAN METAL SEAL UFC-1560A
20860 ASML PCB ASSY 4022.437.0126
22577 DELTA TAU UMAC AC POWER SUPPLY, 603269-106, LFVLT130-4102 ACC-E1
1260 LOVE CONTROLS CORP SELF TUNE PLUS TEMPERATURE CONTROLLER 321
1178 TELETRON REGULATED DC POWER SUPPLY TC-2404Q
T264 MKS BARATRON PRESSURE TRANSDUCER, 133.32 PA 626A-22895
1645 TSURUGA ELECTRIC INTERGRATING DIGITAL PANEL METER 461A-04-A-04T-R
10432 PANASONIC CCD W/ NIKON TV LENS TRINOCULAR COUPLER (C-0.45X) GP-KS162HDE
5683 NOVELLUS FORK, CERAMIC, C2SEQ-X 15-277460-00
13224 ADAPTEC ULTRA2-LVD/SE SCSI CONTROLLER CARD AHA-2930U2
20432 APPLIED MATERIALS GASLINE MIXED, LOWER ISOLATOR, HT BESC 0050-75729
21928 APPLIED MATERIALS ASSEMBLY, RTPC MODULE, 0100-01540, 0100-01539 0010-28579
4176 ALLEN-BRADLEY SLC500 10-SLOT CHASSIS W/ POWER SUPPLY 1746-P2 1746-A10
D22 HONEYWELL UV SENSOR C7035A1023
1655 TOKYO ELECTRONIC CCD CAMERA CONTROLLER CS3500
12071 FESTO SWIVEL MODULE DSM-B, FLANGED SHAFT, P/N: 547597 DSM-16-270-FW-A-B
10243 APPLIED MATERIALS ASSY, TI VIEW LID, CVD 0010-38023
注:聯(lián)系我時,請說是在“傲立機(jī)床網(wǎng)”上看到的,謝謝!