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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(pán)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。 1746-BAS /C Allen bradley
S1500e-T SmartSight S1500ET with DV1280 68-128-1
2803-VIM2 Allen bradley
1492-XIM24-8R Allen Bradley
FRN 20 FRN 15 BLA010 Gould TRS400R
SPD24301B
XCK J167SMC parallel gripper MHZ2-16D
Schmersal sicherheitszuhaltung AZM 161CC-12/12KA-024 101187946
Festo Rocker Valve h-5/3-1/4 4577
Festo Vacuum Suction Nozzle VADM - 45-p 162512
Festo Vacuum Suction Nozzle VADMI - 70-P 162526
Schunk paralelgreifer PGN+125-1-AS 0371403
Festo Swivel Module dsm-32-270-p-a-b 547582
Montech Precision paralelgreifer gpp-1 41357
Schunk Swivel Finger JRC 32 G 355523
Schunk paralelgreifer LPG 25-as 0312913
Sick System Connector sx0b-b1505g 2034264
Festo paralelgreifer hgpp - 12-a 187867
Herion Solenoid Valve 25 312 40
Schunk Position Switch fps-f5 0301805
Sick reflection light switches wt18-3n610 1025894
WAGO potential supply power supply 750-625/000 -001 4045454971564
OMRON Analog Fiber Amplifier E3X-A41
Festo Standard cylinder DSBC - 80-25 - PPSA-N3 1383366
Norgren Valve Body qm/20152/172/12
SMC Twin Piston Cylinder cxsm10-10
ABB Current Transformer safw 400 5741307 7
Brake Switch ZT 300 303
Norgren Vacuum Pump m/58102/90
Festo Programming Module PRG 101
IFM Efector 200 Reflex Light Switches os0026
SMC COMPACT Sled emxs20-125
Leuze Light Barrier SLSS 96M-1210-T2-45 50031249
Schunk paralelgreifer pgn+50-1 0371099
Festo Solenoid valve vors dearth MFH... tigerbet 760727
Festo valve Island TN 18200 cpv10-vi 161414
Festo Electrical-Circuit CPX-CP-4-FB 526705
Schunk paralelgreifer pgn+64/1 371100
Bosch Hydraulic Valve Solenoid Valve r900934614
DKF Cylindrical Roller Bearing nu2314
Timken Tapered Roller Bearings jlm508748-99401 jlm508710
Hydac Pressure Transducer HDA 3740-B-500-158
Festo Führungseinheit FEN-25-100-KF
Metal work start valve APR 300
Festo Compact cylinders ADNGF - 63-15-P-A-S6 537130
Schunk paralelgreifer dpg+80-1 0304321
DKF Cylindrical Roller Bearing nu2314
KEYENCE Instrumentation Amplifier Extension Unit gv-22p
Timken Tapered Roller Bearings jlm508748-99401 jlm508710
Norgren pneumatic cylinder ra/8100/100
Parker Hydraulic Filter 2418.UB (FB5004)
Festo leadership Cylinder dfm-25-50-p-a-gf 170851
Gefran displacement transducer PK?M?0225?XL0181 0000X000X00
Rexroth Hydraulic Valve between plates Valve 0 811 400 104 0811400104
SMC COMPACT Sled mxs16-75
Festo leadership Cylinder dfm-20-100-p-a-gf 170846
SMC mhl2-10d
SMC COMPACT Sled mxs12-50as
SMC COMPACT Sled mxs12-40
SMC COMPACT CYLINDER mgpm 20TF-125Z
Orsta Hydraulic Motor 20/16 TGL 10860
Festo Standard cylinder dngzk - 32-100-ppv-a 36408
Wipotec servomotor Imot 3 13-106W 66032101
Norgren Solenoid Valve x418580g024
Norgren Valve Body qm/1764/123/12
SMC COMPACT Sled mxq8l-30
Festo Compact Cylinder ADVU - 63-100-p-a 156007
Vegetable Diaphragm Valve 610/15/d 7514-1-0104
Turck input Station PDP - in 81 6825301
Allen Bradley 1746-P2 series C 1746P2 W241
1746-N2 /B Allen Bradley
P-B2Q6R1-M3R0-K
6ES7 322-1HH00-0AA0 Siemens
CJ1W-OC201
1784-CP7 Allen Bradley
SDN 10-24-100P
1791-8BC /B Allen Bradley
1771-OW16 /B Allen Bradley
1746-P1 Allen Bradley
1746-C16 Allen Bradley
1794-TB3 Allen Bradley
1771-SN /B Allen Bradley
1746-OW16 /D Allen Bradley
1769-OB16 Allen Bradley
6ES7 153-1AA02-0XB0 Siemens
1784-KTCX15/B Allen Bradley
1771-P4S Allen Bradley
1794-TB32 Allen Bradley
Dummy AS5035.001
Zander Aachen SR2C 472152 W60
Allen Bradley 1794-IB32
500-5002 Siemens
77135-231-51 H Allen Bradley
1771-OAD /C Allen Bradley
IPM2-P0904HA
96254872 series C rev Q Allen Bradley
1734-MB & RTB Allen Bradley
A03B- 0807- C102 AID32B1 GE
1791-24B8 Allen Bradley
Moore 15733-41-1
1746-OW16 /C Allen Bradley
500-5032 Texas Instruments Siemens
Sandvik TLGP-4189L 1015 144311-516
1756-CNBR /D Allen Bradley
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!