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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煞莨经h(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
Applied Materials AMAT Transducer Meter, 1040-01218
Applied Materials AMAT 1270-00485
AMAT Applied Materials 0090-09145
Applied Materials ASSY 0100-14015, SCH 0130-14015
APPLIED MATERIALS AMAT 0010-00201elay, 0680-01738
APPL16184 APPLIED MATERIALS LINE, VACUUM EXH PURGE CH. AB, FACILITY 0050-61407
17708 APPLIED MATERIALS BRKT ASSY CAPACITOR BANK HDP-CVD UL 0040-85061
18765 XYCOM PCB, VIDEO INTERFACE (TOP ONLY) W/ PCB 3175-002 90441-009
20269 APPLIED MATERIALS CABLE ASSY,LLB WAFER MAP/CASS. SENSE 0150-20510
20272 APPLIED MATERIALS PIN PEDESTAL ALIGNMENT CERAMIC 300MM PCI 0200-01904
20476 WPI TERMIFLEX ROB TEACH PENDANT 3100-0036A 55-3000-0001 265591
20976 APPLIED MATERIALS CABLE ASSY, DNET-MFC XFR2, PRODUCER 0150-33781
20991 APPLIED MATERIALS CABLE, SHORT EXT 208V PID CONTROLLER 0150-11900
20990 APPLIED MATERIALS CBL PWR CBL INTERCONNECTRON CONN B4 0620-03762
3418 OMRON SETTING DISPLAY E5ZD-SDL2-X-800
7201 EBARA VACUUM PUMP EMERGENCY OFF SWITCH REMOTE A/C BOX 211618
4487 RISTO LED LIGHT CONTROLLER, 24V/25W PSD-2512-256
4509 BANNER SPECIFIED TEST PIECE STP-14 W/ STP-13 STP-14
22159 PARKER PCB, DIGIPLAN STEPPING MOTOR DRIVE, 1321-003-04 1321.009
1331 OMRON INTELLIGENT SIGNAL PROCESSOR K3TX-AD22A
7481 APPLIED MATERIALS SLIT VALVE DOOR (MXP) 0020-19002
7195 TOKYO ELECTRON UPPER ELECTRODE, 10, (DRM2) 1D10-201082-12
12954 FUJIKIN PNEUMATIC CYLINDER TYPE BELLOWS VALVE, ?" MVCR FPR-71-6.35
11109 APPLIED MATERIALS PLATE PERF 200MM GIANT GAP NITRIDE 0020-30797
841 ADE TECHNOLOGIES CAPACITANCE METER SYSTEM 600
4189 ALLEN-BRADLEY 10 SLOTS PLC CHASSIS W/ POWER SUPPLY 1756-PA72/B 1756-A10/B
18989 OEM SOLID SHAFT ROTARY MOTION FEEDTHROUGH, 67799A 142353K
7706 APPLIED MATERIALS COVER RF SHIELD GOLD INTERLOCK DELTA SAC 0020-75984
12702 HP PCB, JET DIRECT PRINT/ETHERNET CARD 10BASE-T 5182-4752
21416 TELEDYNE SOLID STATE RELAY SQ24D25
8260 AXCELIS ASSY CHUCK 200 PCV 539203
9845 REXROTH INDRAMAT POWER LINE FILTER NFD03.1-480-016
9392 SIEMENS SINAMICS CONTROL UNIT CU240S DP F (A5E00921203) 6SL3244-0BA21-1PA0
4421 JASCO SUPERCRITICAL FLUID CHROMATOGRAPHY 44MM I.DX250MML
7745 APPLIED MATERIALS POWER SUPPLY 0.750KV, X3286 ESC1.5PN7.5X3288(0190-14140)
10874 APPLIED MATERIALS LINER, CATHODE, MAGNET, SUPER-E 0040-02609
13967 APPLIED MATERIALS INSULATOR,300MM HDPCVD ULTIMA 0200-00374
9279 APPLIED MATERIALS PLUG THROTTLE VALVE UNIVERSAL CHAMBER 0021-10634
10087 SANYO DENKI SANMOTION AC SERVO SYSTEMS R2AA04010FCP00
1383 COPAL ELECTRONICS PRESSURE SWITCH, 0-0.5 KGF/CM2 PS83-501G-VCR-001
2459 YASKAWA SERVOPACK SGDA-02AP
5932 CTI-CRYOGENICS CABLE, POWER, UL/VDE 8112463G050
1609 NEMIC-LAMBDA POWER SUPPLY, 15V 3.4A 47-63HZ NNS30-15
8262 APPLIED MATERIALS MANIFOLD, OUTPUT, 1 HOLE, LEFT, 200MM PR 0040-47724
10555 YASKAWA ROBATIC ENCODER SIGNAL PROCESS XU-BDB0100T
20190 CCTC PCB ASSY 21451-1
7699 LEYBOLD TURBO CONTROLLER TURBOTRONIK AMT85472-3 NT150/360
8176 NOVELLUS END EFFECTOR, DIA 14" 15-145022-00
5450 ORIENTAL MTR INDUCTION MTR W/ PROPELLER & SHAFT LENGTH 450MM 4IK25A-A-E16
186 APPLIED MATERIALS 300MM OUTER SHIELD GROUND PLUNGER CAP 0020-42948
6250 FUJIKIN MFC FCS-WR FCSWR-4WS-798-F600#D
10486 ASYST KIT LPT EP LEADSCREW 113M 9701-2390-01
10902 RFPP MATCHING NETWORK, 5000WATTS @ 13.56MHZ 7626130010
3711 ASTECH AUTOMATIC MATCHING NETWORK POWER SUPPLY ATL100RATYL
5533 APPLIED MATERIALS C/A MFC ADPTR W/PURGE/SHUT-OFF,9PIN D:CA 0150-36097
IED MATERIALS 0021-52192
0225-95381
Applied Materials 0100-76128
322-0103// AMAT APPLIED 0090-70003
116-0303// AMAT APPLIED 0200-09996
341-0203// AMAT APPLIED 0040-03641
AMAT Applied Materials 0041-35519
0100-00304, Applied Materials
AMAT 1350-00250
Applied Materials AMAT 0020-01416
Applied Materials Assy #0100-1401
Applied Materials AMAT 0020-10117
Applied Materials AMAT 0040-36180 KPTXZ-36180
Applied Materials AMAT 3870-01574, Nupro 6LV-D1V333P-AB
323-0302// AMAT APPLIED 0010-30230
323-0302// AMAT APPLIED 0010-30065
Applied materials 0090-05098 / 0190-27910
AMAT 0200-01155
APPLIED MATERIALS 3011-01302
AMAT Applied Materials , 0100-40013
316-0402// AMAT APPLIED 0020-35032
Applied Materials A1412168
AMAT Applied Materials 0200-36544
AMAT Applied-Materials 0100-40031
Applied Materials AMAT 5160-48437-E SE-063106
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!