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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(hào)卡,可采集384點(diǎn)信號(hào);7塊開關(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B67 ADVANCED ENERGY MDX PINNACLE POWER SUPPLY 3152338-018A
12964 APPLIED MATERIALS GAUGE, PIRANI CAPACITANCE, 1.33 CONFLAT 3310-00073
7857 MET ONE REMOTE PARTICLE COUNTER R4903 LL .3M CE
12574 APPLIED MATERIALS 200MM CASS''T HNDLR BASIC ASSY,MNL FEND,P 0010-03166
4101 ENDRESS+HAUSER LIQUISYS-P CPM220-21AA02
19662 APPLIED MATERIALS CABLE ASSY TC CHMBR TRAY I/F 0150-20641
12230 TELEDYNE THERMOCOUPLE VACUUM GAUGE TUBE, ?" VCR, 0-1000 MTORR DV-6
11113 APPLIED MATERIALS HOOP, LIFT 8" PVD SHUTTER CHAMBER 0040-20257
15775 VERIFLO PRESSURE REGULATOR , 45400892 SQMICRO302PFSMM
22053 SANYO DENKI STEPPING MOTOR 103H5510-70E1
8881 TOKYO ELECTRON ESC ELECTROSTATIC CHUCK (N1410200103) AN141003
8755 TOKYO ELECTRON ESC ELECTROSTATIC CHUCK (N1410200105) AN141005
12923 NILFISK HEPA CANISTER VACUUM CLEANER, 220-240V, 1200W, 50-60HZ GM 80
4661 SMC SOLENOID VALVE 0.2-0.7 Mpa SY5340-5LOZD
13142 APPLIED MATERIALS ASSY, DTLR INTERLOCK PC BOARD 0100-09307
8356 APPLIED MATERIALS MANIFOLD WATER PL W/ EXTENSION 0020-10135
15757 ECHELON I.LON 600 LONWORKS/IPSERVER IP-852 ROUTER 72604R-TP/XF-1250
10921 SEIKI SEIKO TURBOMOLECULAR PUMP STP-H1301L1
10406 APPLIED MATERIALS PLATE MWAVE LAMP STRAIGHT SOURCE 6061 T6 AL 0993-20950
7784 NOVELLUS CONTROLLER HDSIOC 2 VECTOR FIRMWARE VERSION 5.0 02-321648-00
2036 WATKINS-JOHNSON PCB WJ988 CPU/MEMORY CARD PWB 901094-001
16163 LAM RESEARCH ARM COVER HSG, RDC HGT W/ALIGN 715-021771-101-A
15533 LAM RESEARCH ARM COVER HSG,HSG, RDC HGT W/ALIGN 715-021771-002
16421 APPLIED MATERIALS WELDMENT LOWER NF3 ASTRON I XHDR TEOS 0051-28393
18846 EQUIPE TECHNOLOGIES PCB, IBUS, 103-00192-00, 103-00082-00 103-00080-01
695 INTERAPID DIAL INDICATOR 312B-20
22756 AGILENT PCB, TESTHEAD POWER INPUT BOARD E3120-66544
12011 OMRON ZUV SERIES UV-LED IRRADIATOR CONTROLLER W/ AC ADAPTOR ZUV-C30H
912 DRESSLER RF LC AUTO MATCHING NETWORK VM1500W-CG
14760 APPLIED MATERIALS 5200 CVD WC WXZ GAS BOX, 0020-30511 0240-14203
15435 MAXON MTR DC MTR W/ DUNKERMTREN PLG26 GEARBOX 47.022.026-00.07-154
14139 MICRO/SYS ASSY, ANALOG GND ISOLATION, 344-61843, PCB SBC3386EX
2136 WATKINS-JOHNSON PCB, TC486 INPUT CARD, PWB 910401-001 910402-001
15882 LAM RESEARCH ACCESSORIES FOR MINI MATCH CLIPPARD-MINIMATIC 853-05902-001-E
912 DRESSLER RF LC AUTO MATCHING NETWORK VM1500W-CG
14760 APPLIED MATERIALS 5200 CVD WC WXZ GAS BOX, 0020-30511 0240-14203
15435 MAXON MTR DC MTR W/ DUNKERMTREN PLG26 GEARBOX 47.022.026-00.07-154
14139 MICRO/SYS ASSY, ANALOG GND ISOLATION, 344-61843, PCB SBC3386EX
2136 WATKINS-JOHNSON PCB, TC486 INPUT CARD, PWB 910401-001 910402-001
15882 LAM RESEARCH ACCESSORIES FOR MINI MATCH CLIPPARD-MINIMATIC 853-05902-001-E
16783 APPLIED MATERIALS HARNESS ASSY INTLK CNT MODULE, CH A, PRO 0140-37795
18482 LAM RESEARCH PCB MFIB INTERLOCK BOARD, 710-081302-006 810-081302-006
B49 TYLAN GENERAL CDG ADAPTER UNIT HPC-20
5636 OLYMPUS UMPLANFI-NS 50X/0.80
17807 APPLIED MATERIALS CABLE ASSY 0150-23054
17806 APPLIED MATERIALS CABLE ASSY 0150-23053
3303 NSK ESA SERVO DRIVER ESA-Y2020TF8-21
22782 NOVELLUS PCB, SENSOR PIN BOARD, 27-00156-00 02-00315-00
13020 PERKIN ELMER PCB, WALLAC DUAL STEPPER NODE BD, RCB10565324E RCB 10865325 B
13022 PERKIN ELMER PCB, WALLAC FLASH DRIVER NODE BD, RCK61006844C RCK61006843 A
13027 PERKIN ELMER PCB,WALLAC MONOCHROMATOR NODE BD,RCO61007813D RCO6100 7812 B
13018 WALLAC PCB, FLASH LAMP DRIVER, TEP 516, TQN 6100 6813 C TQN61006811C
19262 APPLIED MATERIALS CABLE ASSY,DIAGNOSTIC,HE MATCH TO HV MOD, 1FT 0150-39389
3209 FUJI SEIKI RIGHT ANGLE VALVE, 000205 1222101
2635 MITSUBISHI MELSEC PROGRAMMABLE CONTROLLER FX1N-60MT
327 APPLIED MATERIALS 135 DEG ELBOW,316L SST NW-40,W/1/4" MALE 0050-04747
20797 SANKEN PCB ASSY PKG9 PDA10115B
21118 LAM RESEARCH CABLE ASSY, 4.4M 853-206278-001
21403 APPLIED MATERIALS PLATE, LINER ALIGNMENT, VESPEL 0021-09097
21431 LAM RESEARCH DISK CALIBRATION, DIA 8.27" 715-010237-008
8759 OPAL SDT ASSEMBLY 70512360100
21938 ADVANTEST SAFETY CONTROLLER MODULE, BLD-020100, 01627355 WBL-MIF/TYPE15X02
12755 EPPENDORF MASTERCYCLER EPGRADIENT S THERMAL CYCLER 5345
21997 APPLIED MATERIALS PCB CARD CPCI 3U 16-PORT RS-232 0190-36769
2391 OMRON TEMPERATURE CONTROLLER E5CW-QP
22459 AXCELIS COVER FLANGE 17231650
10637 APPLIED MATERIALS ACTUATOR, LIFT ASSY 0190-25812
1570 ASCO RED-HAT II SOLENOID VALVE 8262G86 302020
12278 VERIFLO 3-WAY HIGH PURITY PNEU VALVE, P/N: 45300401EV 955Y3NC/NCFSFFFBEV
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!