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集散控制系統(tǒng)(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(chǎn)過程控制系統(tǒng)。隨著計算機和網(wǎng)絡技術的飛速發(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應用廣泛、技術成熟,在現(xiàn)有的技術條件和市場條件下,F(xiàn)CS還不能完全取代DCS,而且目前現(xiàn)場總線設備和系統(tǒng)還十分昂貴。因此,除了新建企業(yè)外,國內企業(yè)在較長時間不可能全面采用現(xiàn)場總線技術,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)水質凈化廠各生產(chǎn)單元的功能和建設階段,分為廠外調節(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,在廠部設有總調度室,但是總調度室的監(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(jiān)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(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)結構見圖2—1): ??四期污水處理生產(chǎn)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(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。 1746-BAS /C Allen bradley
3540 ALLEN-BRADLEY 8-POINT DISCRETE I/O SIMULATOR MODULE 1771-SIM
9948 ROFIN OBJEKTIVHALTESATZ; F170; 532; TH 101114312
16799 APPLIED MATERIALS CABLE ASSY, PUMP UMBILICAL, 50FT 0150-16007
5641 NIKON MICROSCOPE OBJECTIVE LENS PLAN 20 /0.4 160/0.17
11616 TEL PCB,TTLM02-12 MDIF5B I/O FURNACE 2180-021108-11
5081 APPLIED MATERIALS .650" 300MM 3 CHANNEL HEATER LVL CALIBRATN REF 0190-11355
15721 LAM RESEARCH PCB ASSY PWR SUPPLY ESC BICEP HV-RP 810-495659-511
10934 MKS IN SITU DIAGNOSTIC ACCESS VALVE IDA-T007
7395 GRANVILLE-PHILLIPS 354 MICRO-ION VACUUM GAUGE MODULE 354001-YG-T
1005 KEYENCE POWER SUPPLY KV-U2
10171 RKC TEMPERATURE CONTROLLER CB400
10082 MKS REGULAR VALVE 1" BELLOW 25KF FITTING CVNL-K2-MKKVV
11116 APPLIED MATERIALS PEDESTAL, UNIVERSAL 200MM 3 POINT 0040-21367
19377 LAM RESEARCH WELDMENT 2 VLV MANF 944AOPLPNCSH11 839-016784-005
16280 APPLIED MATERIALS ASSY, RF FILTER BOX PRODUCER SE 0010-35530 0090-04947
5287 VERIFLO REGULATOR, 45800978-1 (LOT OF 3) SMSQ2MICRO130E30102
6344 HORIBA-STEC MFC Z500 SEC-Z522KXN
8950 APPLIED MATERIALS MOUNT PLATE 0021-79311
B67 ADVANCED ENERGY MDX PINNACLE POWER SUPPLY 3152338-018A
963 GEDORE/ICT DEDICATED TOOLS BOX 490604 WITH TORCOFIX-K RAHSOL 490604
20778 SANYO DENKI PCB, SERVO DRIVE POWER BOARD PRS-4286C
20784 EXIDE ELECTRONICS PCB, EE RECTIFIER CONTROL BOARD, 101072866-007 101072866
21407 APPLIED MATERIALS SHAFT LWR LFT ARM ROBOT 0020-76067
8992 APPLIED MATERIALS POLISHER PART 0040-54799
20875 KOLLMORGEN SERVOTRONIX PCB ASSY TURBO RMM RESOLVER PRD-0016400G-10
7540 KOMATSU MW200N SILICON WAFER STORAGE W/ 4 SILICON MW200.N.C
23049 YASKAWA ELE AC SERVO MTR W/ NEUGART PLE 40, 2070048 SGMAH-01A1F-AP51
21378 STROMAG DRIVESTAR LTI DRIVE, 704111, 182-01861 U-DS 020.1
771 FURON PNEUMATIC VALVE, NOVELLUS P/N: 34-053380-00 NV2-144NC-HP
4905 VAT GATE COMPL. 83530-R1
4101 ENDRESS+HAUSER LIQUISYS-P CPM220-21AA02
10212 APPLIED MATERIALS SEPC, LIGHT CURTAIN SENSORS, 5.X FI 0190-24830
13228 APPLIED MATERIALS WTR MANIFOLD, ESC, IPS 0021-10917
15339 APPLIED MATERIALS HANDLE, LID TC 0020-41012
15476 APPLIED MATERIALS TIP,SUSCEPTOR SHAFT,OUTSIDE 0200-00207
16055 APPLIED MATERIALS COUPLING MAGNETIC ROTATION 0020-36033
15899 SUPERCHEM O-RING,PVMQ AS568A-446
16711 APPLIED MATERIALS CABLE, LIQ SENSE INTERCO 0150-09605
16748 APPLIED MATERIALS HARNESS ASSY,DTLR STATUS GPLIS 0140-38487
15582 LAM RESEARCH WAFER HOLDER ARM, 6" 715-130078-006
14805 APPLIED MATERIALS MOUNT, ROTATION ADJ. ARM 0020-35549
2068 ANALOG DEVICES PCB, I/O BOARD RTI-1240-R
16106 APPLIED MATERIALS PCII BELLJAR BEADBLAST FIXTURE 0270-20268
17723 ADVANTEST PCB ASSY, PGH-819207BB2 BGH-019207
17653 ADVANTEST PCB ASSY, PGG-417152AA1 BGG-017152
18223 PULNIX MONOCHROME INTERLACED SCAN CCD CAMERA TM-745E
10391 APPLIED MATERIALS FLANGE, EDWARDS PUMP, CVD EXH SW 0040-21826
3882 TDK CORPORATION POWER SUPPLY FAK05-5RO
9936 ROFIN HALTER; SHG; 5X5X18; OWC;O. JUSTIEREINHEIT 101110075
1800 STI MCF4200E DIN 081608 2X 2R CABLE WITH NICKEL PLATED 82322-0010
19252 APPLIED MATERIALS ASSY, ORIENTER LASER OPTICS, 0060-77071 0010-00957
7552 SMC DUAL ROD PNEUMATIC CYLINDER CX2N15-50
6408 AERA MFC FC-PA785C FC-PA785CT-BW
8649 BENKAN SCV VACUUM VALVE W/ BELLOWS VALVE & PNEUMATIC CYLINDER LK828
949 GRANVILLE-PHILLIPS 307 VACUUM GAUGE CONTROLLER 307
13297 WESTERN SERVO DESIGN PCB,LINEAR SERVO AMP,ASSY 10026-100 LDH-A1-3/2.5-WJA
14147 INTEL PCB, TYAX 32 I/O EURO CARD FOR FAT5, FPD-PB1619 PB1619
14148 INTEL PCB, 256LX 137B-X32P EURO CARD FOR FAT5, FPD-PB1660 PB1660
20516 ROSE ELECTRONICS PCB ASSY, KVM-V34 PCB-KVMH
20509 BLE PCB ASSY, E333.17.10L E333.17.10B
20817 OEM PCB ASSY 018.00-7111.065K-03.00/B
20842 OEM PCB, REMOTE TERMINAL CARD, 341100111 TW-4
20856 OEM PCB, 8 CHANNELS RELAY BOARD C1024-01
20974 APPLIED MATERIALS CBL ASSY, HTD LINES 0150-23501
417 LEYBOLD INFICON LEYBOLD INFICON TRANSPECTOR TSP TC100849 TSP TC100 849
6593 AERA MFC FC-D985C, GAS: CCYCLO-C5F8(.152), 30 SCCM TC FC-D985CT-B1
9461 SIEMENS CPU317-2DP CONTROLLER MODULE 6ES7 317-2AJ10-0AB0
4661 SMC SOLENOID VALVE 0.2-0.7 Mpa SY5340-5LOZD
11853 FUJIKIN DIAPHRAGM VALVE, TYPE N.O., O.P. 4~6KGF/CM2G 23730
651 HOECHST CELANESE GUARDIAN REACTION CHAMBER GMA9006
9424 MYKROLIS CHAMBERGARD FV-25LT FILTER DIFFUSER WG3D25LR2
5969 APPLIED MATERIALS ETO RF GEN 2.0 MHZ WATT METER ABX-X276, ABX-X23 ARX-X250
9934 ROFIN KABEL; SCHR.-PC; E-KOPF; R8MXX DIESELSTRABE 15 (80245634) ( 101105525
10644 KNICK ELECTRONIC BATTERY CONDUCTOMETER 911 COND
305 SEMIF ABS PCB, ASSY, 7770STS CELE-200
7005 UVP PEN RAY POWER SUPPLY 99-0055-02 PS-1
7244 TEKMAR-DOHRMANN TEKMAR 6000 AERO TRAP DESORBER 14-6000-100
20773 KOLLMORGEN SERVOTRONIX PCB ASSY PRD-0032030B-10
1173 NEMIC-LAMBDA POWER SUPPLY LCS150-24
20062 APPLIED MATERIALS WSHRLKG SPLIT #3/8 .680OD X .385ID 3880-01028
22037 APPLIED MATERIALS BELLOWS,750 DIAMETER,RADIANCE CHMBR RT 0040-01981
22093 YASKAWA ELECTRIC AC SERVO MOTOR SGMAH-A5AAA-TE21
11610 COSEL 5V/5A 24V/9A POWER SUPPLY LEB225F-0524
8370 TOKYO ELECTRON EDGE DETECTION UNIT BOX PN:BB81-002457-12 BB87-002604
17032 SHIBASOKU PCB HANDLER/PROBER/REMOTE BOX I/F PC252B
13447 APPLIED MATERIALS RR MANIFOLD, 0190-77472 W/ BURKERT US0F01 0020-78947
6418 AERA MFC, PRESSURE INSENSITIVE FCPIDA980C4V
注:聯(lián)系我時,請說是在“傲立機床網(wǎng)”上看到的,謝謝!