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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(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。
2MBI400U2B-060-50 2MBI300U2B-060-50DIM1600FSM17-A076
TT310N22KOF TT310N26KOF 6SY7000-0AD36
FZ2400R17HP4-B9 FZ3600R17HP4-B9
ABB SINT-4430C
ABB SINT-4430C SINT-4420C
A5E00297621/A5E00297628/A5E00297617 S120
TZ800N18KOF DZ1070N18K
6MBP75RSA120-03
NKT350-16 NKT200-16 nkt500-16
CM75TU-24F CM100TU-24F
RMIO-01C RMIO-11C
DIM1600FSS12-A076
CM300DX1-24NFJ
BSM35GD120DN2
PM300DSA120
PM400DVA060
CM100DY-24NF CM150DY-24NF CM200DY-24NF CM300DY-24NF
1MBI100U4F-120L-50
CM100DY-24A CM150DY-24A CM200DY-24A CM300DY-24A CM400DY-24A
6SY7000-0AF01
CM400DY-24NF
6SE7031-7HG84-1JA1 6SE70
7MBP150RTA060-50 7MBP100RTA060-50
7MBP75RA120-55 7MBP75RA120-50 7MBP50RA120
SKKD105F12
ABB ACBU-A1
6RX1240-0AK01
Jeanmueller R3087640 1000A-aR 690V G3UF0 HLS3
2SP0320T2A0-17 2SP0320T2A0-12
PM450CLA120 PM300CLA120 PM200CLA120
FZ1200R12KL4C FZ1200R17KF4C
cuvc 6se7090-0xx84-0ab0
6MBI300V-120 6MBI450V-120
T1081N70T-S01
CM1000HA-24H
MSCD200-16 MSCD240-16
s804pv-m125
170M5809
FD800R17KE3-B2
7MBP150VEA120-50
MKI75-12 E8
LF505-S/SP13 LF2005-S LF1005-S/SP16
KPX2500-40C
PD200KN16
CM200DX-24S CM300DX-24S
FS75R12KE3 FS75R12KT3 FS75R12KT4-B15
FZ1600R17HP4-B21
FZ600R12KS4
FS400R07A1E3
2MBI150SC-120 2MBI150U4B120 2MBI200U4B-120 2MBI100SC120
6MBI75S-120 6MBI75S-140 6MBI100S-120
SKIIP31NAB12T16 SKIIP30NAB12T45 SKIIP32NAB12T10
2mbi1400vxb-120p-54
SK-U1-MCBP-A1 2945401704 AB400
PC31UD69V315TF Q300003 AC690V 315A
SKKH250/16E SKKH330/16E SKKH250/18E SKKH330/18E
6SE7021-8TB61-Z
6se7038-6gk84-1gf0 6se7038-6gk84-1gg0
FC-301 130B6068
SKIIP31NAB12T49
SKIIP31NAB125T12 SKIIP32NAB125T12
SKIIP31NAB12T10 SKIIP32NAB12T45 SKIIP31NAB12T11
FZ1600R12KF4-S1 FZ1600R12KL4C
SKM75GB176D SKM100GB176D SKM145GB176D
MFC90A 100A 110A 160A 200A 250A 300A 350A 500A1600V
TD122N22KOF
SKKT162/16E SKKH162/16E
MDS100A 160A 200A 300A 1600V MDS100-16 MDS200-16 MDS300-16
A5E03894525
MBB400V6C
6SE7038-6GL84-1BG2 6SE7038-6GL84-1BG0
6SE7031-7HH84-1HJ0
A5E01105818
BUSSMANN 170M4770 550A 690V 170M4771
Bussmann HVA-2 2A 1000Vac
170M6508 500A / 170M6509 550A / 170M6510 630A 690V 170M6511
170M3910 500A 690V 170M3909 170M4202/4203/4204
Bussmann 660RE00AT160 160A 660V / SPJ-4M60 60A1000V aR
Bussmann/170M6858/6970/7138/7229 170M68*/69*/71*/72
Bussmann FRN-R-100
170M6512 800A 690V 170M6513/6514/6515
Bussmann/ DD160 ED250/400 AC AD BC BD CD DD ED EFS BS88
Bussmann 170M2039 160A 2000VDC 170M2039~2055~2067
FWP-100A (700V 100A)
Bussmann 140FEE
Bussmann 170M6651 1400A 1100V aR 170M6648/6649/6650
Bussmann FWX-100A
Bussmann 170M2016 800A 750VDC 170M2000~2010~2021
Bussmann 170M1419
Bussmann FWP-50A14FI 50A 700V
Bussmann LPJ-150SP 150A 600VAC/300VDC
Bussmann 10NHG000B-400 16/20/35NHC00G-690 NH000/C00
Bussmann NH3 800A 500V 120KA gG/gL (800NHG3B 800NH3G)
Bussmann 170M3815 200A 690V aR 170M3812/3813/3814
Bussmann 170M6017 1400A 690V aR 170M6167/6217
Bussmann 170M4414 500A 690V aR /170M4415
Bussmann MSD01-01-013
Bussmann MSD01-01-020
bussmann LPJ-50SP 50A 600V LPJ-55/60SP
Bussmann 170M1365 63A 690V aR
Bussmann/ NH1 250A690V 250NHG1B-690 250NH1G-690 355NH3G-690
Bussmann 170M1367 100A 690V aR
Bussmann NH00
BUSSMANN 170M6162
Bussmann C22G63
Bussmann 170M4463
BUSSMANN 170M2621
Bussmann LPJ-150SP
Bussmann FWP-35Ba
Bussmann 170M2699
Bussmann 170M8550
Bussmann 170M4146
Bussmann FWJ-100A
BUSSMANN 170M3142
Bussmann170M8650
BussmannKAC-70
BussmannLPJ-175SP
Bussmann170M3819D
Bussmann 40NHG000B-69
Bussmann 170M3422
Bussmann 170M5961
Bussmann 170M4238
BUSSMANN 170M4462
Bussmann 170M3164
Bussmann 170M5013 700A 690V aR 170M5015/5018
Bussmann NH4 800A 500V 120KA 800NHG4G
6MBP75RSA120
MTC90A 100A 110A 160A 200A 250A 300A 350A 500A1600V
FZ1600R17KF6C-B2S2 FZ1600R17KF6C-B2
MDQ100A1600V
A5E00135620
6SE7035-7GK84-1JC0
6SE7031-7HG84-1JA1
A70QS400-4 A70QS250-4
A5E00173192 A5E02822121 A5E00412608 A5E00173192 A5E00109824
HINODE 660GH-32/40/50/63/80/100/125/200/315/400
bussmann 100NHG00B-690 63NHG00B-690 500NH3G-690 gG/gL
Bussmann 170M5462 630A 690V aR 170M5403/5404/5405
BUSSMANN 170M2708/2714/2716/2721/2758/2762/2765/2771
Bussmann XL50F600A/800A XL70F125A/150A XL70F200A
BUSSMANN 160NHG00B-690
Bussmann 170M2690
170M7156 3000A 170M7520/7028/7636/7639/7963/7090/7640/7658
170M7031 1100A 1000V 170M7542/7548/7034/7544/7035/7036/7037
Bussmann BS88 400LMT 160/200/250/315/355/450LMT
Bussmann FWP-40A22FI / FWP-25A22FI
BUSSMANN FRS-R-90 FRS-R-100/110/175
Bussmann 170M2076 300A 4200VDC 170M2066/2075
Bussmann 170M8637 800A 1000V aR
BUSSMANN FWP-60Ba 60A 700V
BUSSMANN FWP-100A/150A 100A/150A 700V
Bussmann 170M6421
Bussmann 170M6035
BUSSMANN 170M6712
Bussmann 170M6081 400A690V
Bussmann 170M6417
Bussmann 161-1027
Bussmann FWP-15B / FWP-15A
Bussmann 170M6010
Bussmann 170M1373
Bussmann 170M4183
Bussmann FWP-50Ba
Bussmann 170M3469
Bussmann 170M6145
Bussmann / NH2-315A 500V (315NHG2B) 500NH3G-690 630NHG3B
Bussmann 170M4908
Bussmann 170M6067
Bussmann FWP-60A
Bussmann 170M6766
BUSSMANN 170M6665
Bussmann FWH-700A
BUSSMANN 225MMT 225AMP
Bussmann 170M5463
Bussmann 170M6452
Bussmann 170M4017
Bussmann 170M3468
Bussmann 170M3418
Bussmann 170M4467
Bussmann 170M1369
BUSSMANN 170M4058
Bussmann 170M3473
Bussmann 170M3215
Bussmann 170M5113
Bussmann 170M7082
Bussmann 170M6421
Bussmann 355P J30-7 / 400P J31-7
Bussmann 170M7060/7061/7062/7063/7064/7065
Bussmann 170M1571
Bussmann 170M3466
Bussmann 170M6546
Bussmann 170M6419
BUSSMANN 170M5258
Bussmann 170M5952/5953/5954/5955/5956/5957/5958
Bussmann 170M6421
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