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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(chǎng)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(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,國內(nèi)企業(yè)在較長時(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 6ES7 223-1BF22-0XA0
4WE6J62/EG24K4 R900902828
4WE6E73-6X/EG24N9K4/A12
Schneider Motor Circuit Breaker gv2rt16
DI-Sorich reflection Button oht31 K 200 p1k
Festo Pressure Sensor Real Kick-p10r-g18-pb-k1
Festo and building block zk-2-r-m5 zk-2-r-m5
Festo field bus plug fbs-sub-9-gs-dp-b
Festo Solenoid valve vmpa 2-M1H-G-PI
Festo Solenoid valve MEH-3/2-1/8-P-B
Hydac Hydraulic Filter Filter Element 0110 R 010
OMRON g700 uod16-1
Festo Position Transmitter Smat - 8m-u-e-0,3 - m8d
BALLUFF Series Position Switch BNS-D02-R12-100-10 BNS00C9
Sew Eurodrive Gear Motor s37 dt71d8/bmg/tf
BALLUFF Ind.. Proximity Switch BES M08EH-PSC15B-S04G
Schunk 3 Finger Eurocentric Gripper PZN 100/1 0300312
IFM ZB0036
Erbic Profibus Connector 134928
Festo Throttle Valve GR-1/2 3720
Hydraulic Motor orsta 20/20.0 .012 tgl37070
IFM Inductive Sensor IE5287
Baumer Inductive Sensor ifrm 06P17A3/S35L
Festo Compact Cylinder ADVU - 63-30-p-a
Rexroth druckzuschaltventilventil DZ 6 DP2-52/75 00481271
Festo Solenoid msw-220 3592
Festo PROXIMITY SWITCH SME-8-O-K-LED-24
Vegetable Diaphragm Valve 610/15/d 7512-1-0104
Bosch HYDRAULIC VALVE 081WV06P1V1001WS024/50000
Festo Solenoid valve vuvs-l20-m32c-md-g18-f7-1c1
Maple Systems HMI touch panel hmi520t-007
Festo leadership Cylinder dfm-20-180-b-ppv-a-gf
Festo Solenoid valve vuvs-l20-m32c-md-g18-f7-1c1
Euchner Series Limit Switch SN05D12-502-M
Baumer Inductive Sensor IFFM 08P1701/O1S35L
Festo Power Valve ms6-ee-1/2-10v24-s
Festo leadership Cylinder dfm-32-125-p-a-gf
BALLUFF Light Switches BOS01LL BOS 6K-PU-RD10-S75
Festo Compact Cylinder ADVU - 16-40-p-a
Parker Elbow 24EMTXS
Festo Standard Cylinder DSNU - 12-240-P-A
Festo Connection Plate vabs-S4-1S-G14-R3
Festo Solenoid valve g2.325.492/01
Festo proportional pressure control valve mppes - 3-1/4-6 -420
Festo Throttle-check Valve igr-03-a-p -- a/b-qs-8
Heidenhain Encoder Encoder ERN 1387.001-2048
ASCO Numatics Solenoid Valve e210d009sca8
Festo Solenoid valve vmpa 1-M1H-G-PI
Festo Mini Sled DGSL - 20-80-C-Y3A
Festo Solenoid valve vmpa 1-M1H-K-PI
Festo and link zk-pk-3 6685
Parker HOERBIGER Sensor KL3055
Parker HOERBIGER Sensor KC3065
SMC Pressure Control Valve Electro-Pneumatic Regulator itf2050-23f3n
Sick safety switching device security module ue410-4ro3
Sick Displacement-Measurement Sensor OD85-20T1
BALLUFF REFLECTION LIGHT BARRIER BOS 18M-PA-1PD-E5-C-S4
BALLUFF Inductive Proximity Switch BES 516-3005-g-e5-c-s4
Festo pneumatic valve vl/o-3-1/8-b-ex
Festo Regulator Plate vabf-S4-1-R3C2-C-6
Festo pneumatic valve VL-5-1/4-B
Euchner Safety Switch tz2re024bha-c1903
Sick REFLECTION LIGHT BARRIER WTB4S-3P3461
SMC Pneumatic Mechanical Valve 3 Way Valve vm153-m5-35ba
Festo Solenoid valve lock mha2-m1h-3/2g-2 196118
Festo Throttle-Valve GRLA - 3/8-B
Schneider Planetary Gear GBX080008K
Rexroth pneumatic cylinder 0822340003 0 822 340 003 32/80
Siemens Converter Power Module 6SL3210-1SE11-3UA0
Festo Solenoid valve CPE24-M1H-3GLS-3/8
BALLUFF Inductive sensor BES 516-326-g-s 4-h bes01cu
Moeller (Eaton) Power Circuit Breaker FAZ-C15/3-NA
Schneider Motion Controller lmc402caa10000
BD Senors Pressure Transmitter DMP 331 110-v152-3-3-100-300-1-000
BALLUFF Optical Sensor BOS 2K-X-RS10-00, 2-S49 BOS0109
Festo Solenoid valve mhe2-m1h-3/2o-m7
Internormen Hydraulic Filter Filter Element 311433
注:聯(lián)系我時(shí),請(qǐng)說是在“傲立機(jī)床網(wǎng)”上看到的,謝謝!