07KT98(WT98) |
近年来,在DCS关联领域有许多新进展,主要表现在如下一些方面。
(1)系统功能向开放式方向发展 传统DCS的结构是封闭式的,不同制造商的DCS之间难以兼容。而开放式的DCS将可以赋予用户更大的系统集成自主权,用户可根据实际需要选择不同厂商的设备连同软件资源连入控制系统,达到最佳的系统集成。这里不仅包括DCS与DCS的集成,更包括DCS与PLC、FCS及各种控制设备和软件资源的广义集成。
(2)仪表技术向数字化、智能化、网络化方向发展 工业控制设备的智能化、网络化发展,可以促使过程控制的功能进一步分散下移,实现真正意义上的“全数字”、“全分散”控制。另外,由于这些智能仪表具有的精度高、重复性好、可靠性高,并具备双向通信和自诊断功能等特点,致使系统的安装、使用和维护工作更为方便。
厦门岳航计算机工程有限公司
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厦门市思明区湖滨东路湖光大厦AB单元
(3)工控软件正向先进控制方向发展 广泛应用各种先进控制与优化技术是挖掘并提升DCS综合性能最有效、最直接、也是最具价值的发展方向,主要包括先进控制、过程优化、信息集成、系统集成等软件的开发和产业化应用。在未来,工业控制软件也将继续向标准化、网络化、智能化和开放性发展方向。
(4)系统架构向FCS方向发展 单纯从技术而言,现阶段现场总线集成于DCS可以有三种方式:① 现场总线于DCS系统I/O总线上的集成――通过一个现场总线接口卡挂在DCS的I/O总线上,使得在DCS控制器所看到的现场总线来的信息就如同来自一个传统的DCS设备卡一样。例如Fisher-Rosemount公司推出的DeltaV系统采用的就是此种集成方案。② 现场总线于DCS系统网络层的集成――就是在DCS更高一层网络上集成现场总线系统,这种集成方式不需要对DCS控制站进行改动,对原有系统影响较小。如Smar公司的302系列现场总线产品可以实现在DCS系统网络层集成其现场总线功能。③ 现场总线通过网关与DCS系统并行集成――现场总线和DCS还可以通过网关桥接实现并行集成。如SUPCON的现场总线系统,利用HART协议网桥连接系统操作站和现场仪表,从而实现现场总线设备管理系统操作站与HART协议现场仪表之间的通信功能。
一直以来DCS的重点在于控制,它以“分散”作为关键字。但现代发展更着重于全系统信息综合管理,今后“综合”又将成为其关键字,向实现控制体系、运行体系、计划体系、管理体系的综合自动化方向发展,实施从最底层的实时控制、优化控制上升到生产调度、经营管理,以至最高层的战略决策,形成一个具有柔性、高度自动化的管控一体化系统。
【优势品牌与型号】
1. 罗克韦尔(A-B):1756,1785,1771,1746,1747,1769等,及部分停产备件(1398,1326,1336,1394,2711等)如:1756-L63,2711-T10C10
2. 施耐德(SCHNEIDER):莫迪康,Quantum 140系列处理器、控制卡、电源模块等,如:140CPU11303
3. GE FANUC 发那科:IC697,IC693,IC695,IC200,DS200,DS3800,IS215,VMI,等,如:IC693CPU364
4. 西门子(SIEMENS):摩尔(MOORE);6ES5(948,946,947,等停产模块);6ES7(400系列,部分);TI,VIPA,6DD,6DS,6GK,6A V,6RA(部分型号)等。西门子停产备件做的比较多,如:6ES5-948-3UR23,39ACM28AEN
5. 福克斯波罗(FOXBORO):FBM,CP60,CP40,CP30等,如:FBM215, CP40B
6. ABB:机器人控制系统DSQC系列,BAILEY INFI 90及停产备件,如:DSQC679
7. 霍尼韦尔(HONEYWELL):TDC3000,620、621、514、513等,如:51400700-100
8. 英维斯(TRICONEX):TRICON DCS的系列,如:3805E
9. 西屋(westinghouse):OVATION系统、WDPF系统、WEStation系统备件,如:1C31129G03
10. 博世力士乐(Bosch Rexroth):Indramat,I/O模块,PLC控制器,伺服控制,驱动模块等,如:VT3006-S35/R1
11. 摩托罗拉(MOTOROLA):MVME 162、MVME 167、MVME1772、MVME177等系列,如:MVME162-212
另外还有 Woodward(伍德沃德),雅马哈(YAMAHA), 贝加莱(B&R),欧姆龙(OMRON), KEBA,安川(YASKAWA) 等品牌的停产备件
LOT 6 2-1/2IN THREADED PLASTIC ConDUIT BUSHING D369109
NEW SMITH BLAIR 245 6X6IN 152MM PIPE CLAMP D329748
LOT 2 NEW WAUKESHA 101692 SPRING WASHER D378750
NEW SUDMO 0034587 3IN SANITARY CLAMP STAINLESS D394086
AMERICAN BRASS COMPANY 5614F 1/4IN 3/8IN OD VIBRATION ELIMINATOR HOSE B386606
LOT 6 NEW ANVIL PSI11/4WPBSTDFC?502 BLACK IRON PIPE CAP 1-1/4IN D249830
LOT 4 NEW FESTO LJK-3/8 4947 3/8IN PNEUMATIC FITTING D330597
NEW APV 569202 THREADED STUD 5/8IN OD D299909
LOT 3 NEW H70349 GASKET D354428
LOT 16 NEW TOTAL SOURCE F4424/00 SPRING SET D316449
LOT 2 NEW SUN HYDRAULICS ASSORTED 990-202-006 990-102-006 SEAL KIT D293667
LOT 5 NEW SCHMERSAL HA330-0250-01-2?00 SEAL 25X33X7MM D319438
LOT 2 HERION 25 411 00 DIRECTIonAL ConTROL VALVE 1-16BAR B206610
LOT 10 NEW BETTER PACKAGES E-610-B PRESSURE PLATE D223857
NEW PFERD 47204 LIGHT DUTY ALUMINUM OXIDE 2IN X 50YDS 100 GRIT SHOP ROLL D401028
LOT 3 NEW ZENITH 15-56002-0178-1 STAINLESS ROUND KEY 5/8IN LONG 1/8IN OD D394015
LOT 3 HYSON T2 180x80 MIXED TELEDYNE PNEUMATIC GAS SRPING TANKER 2 B210877
LOT 4 NEW GENERAL ELECTRIC C36.6B THERMAL OVERLOAD HEATER ELEMENT D227238
NEW CROSBY GROUP #4 SELF CLOSING PINLOCK GATE ASSEMBLY D267356
ASEA 2668 180-134/1 FIELD EXCITER MODULE WITH ENCLOSURE CASE YT352001-AB B202760
LOT 2 NEW 109125 GASKET D355169
LOT 11 NEW SERTO SO 50020-6.35 056.0200.063 STAINLESS UNIOn NUT 1/4IN D347982
LOT 2 NEW FURNAS E26 THERMAL OVERLOAD HEATER ELEMENT D267073
LOT 16 NEW PP20-242420 25X24X2IN AIR FILTER D295847
LOT 4 NEW APV A100-0237-40 GASKET D219281
LOT 6 NEW LYNCH R52215(601811) SPRING HOLDER 2-1/2X1-1/2IN D261447
NEW WAUKESHA 129-8X FERRULE SANITARY STAINLESS STEEL 14A-7 1-1/2IN 316L D303535
NEW YORK Y-011-062 FLANGE HEAT SEALER 1IN ID D255165
LOT 4 NEW BOSCH N5451-0213 SPACER RING D361839
LIGHTNIN 143850316 DRIVE AGITATOR 1/2IN SHAFT ASSEMBLY FLANGED END 8IN B239244
LOT 4 NEW MATLHAN 316601 TRAVELING SIDE GUIDE ALUMINUM D310503
LOT 2 SQUARE D 9001 KM1 SER G 110-120V-AC BLUE ILLUMINATED PUSHBUTTON B316137
NEW MTC 9-181 STAINLESS ACTUATOR PISTON 1-1/4IN BORE D246191
LOT 2 NEW PENTEK PD-50-934 50 MICRON WATER SEDIMENT FILTER 9-7/8 IN LONG D433768
LOT 2 NEW CHANGE PARTS 9180SDA STEEL JAW STEM D332499
LOT 2 NEW 3/4IN NPT BRASS 90DEG ELBOW PIPE FITTING D488025
LOT 2 NEW DELTROL 57117-60 120V-AC COIL D315067
LOT 2 NEW CREPACO 37H-P-171608 ACTUATING SCREW D253286
LOT 2 NEW MARTIN 1215 1-1/4 SPROCKET TAPERED LOCK BUSHING 1-1/4IN BORE B208154
NEW COZZINI EN10662 1-1/4IN ID 2-1/4IN OD HEX NUT STAINLESS D215226
LOT 3 NEW STAINLESS 2-WAY FITTING 1IN MALE 1-1/2IN FEMALE B231870
NEW COILHOSE 618-S 1/4IN NPT SAFETY PNEUMATIC GUN W/ 18IN EXTENSION D505049
LOT 3 NEW NUMBER 4 RUBBER STAMP DATE CODER 7/8X3/8 IN D419061
NEW PSC 1368948 STEEL GUIDE PLATE 2-HOLE D326978
NEW PSC 1369006 GUIDE PLATE STEEL 2-HOLE D327028
LOT 2 NEW MULTI-VAC 11.591.9470.00 ConTROL HANDLE THREADED 1/2IN MALE B231781
NEW PACIFIC PACKAGING MACHINERY A-2322 FILL PLUG 1-3/4 IN DIA STAINLESS D302359
LOT 4 NEW VI-CAS VC30 VACUUM CUP D364350
NEW NORDSON 9018 HOT MELT GLUE GUN HOSE 450DEG F OPERATING TEMPERATURE B233577
LOT 7 NEW SWAGELOK SS-2-HC-1-2 ConNECTOR HOSE FITTING 1/8IN NPT B272651
LOT 3 NEW IKA P002646 VITON O-RING SEAL B321626
NEW LAPP USA 70.0944NP TOP ENTRY HIGH PROFILE ConDUIT FITTING D287891
LOT 3 NEW MAREL TOWNSEND ASSORTED 32881-18 THRUST COLLAR D215531
LOT 3 NEW TANIS FOOD TEC EA-0260 O-RING D351347
LOT 197 NEW PACKAGING TECHNOLOGIES 1/8-32 SCREW CUP POINT SET D255061
NEW INTELLIGRATED SYSTEMS 0110119 IDLER SNUB WHEEL 1-1/4 OD 1/2 IN ID D459532
LOT 12 NEW TRI CLOVER F1-1-21-U GASKET D348049
NEW MICROFLEX MF-3246-D 6IN FLANGED 26-3/4IN LENGTH PIPE COUPLING D381109
NEW RYSON S00520 DELRIN ConVEYOR GUIDE B431639
LOT 155 NEW RA JonES 110-SS COMPRESSION SPRING 1-3/8IN D388174
LOT 186 NEW THOMAS&BETTS APPLETON ASSORTED T&B-143 ConDUIT LOCK NUT 1 IN D236825
NEW STEEL COMPRESSION SPRING 1-1/16IN LENGTH 1IN OD 1/16IN WIRE D481522
LOT 5 NEW LANTECH 40050401 FILM ROLLER 1X1-13/16X5/8IN D257445
LOT 5 NEW WESTINGHOUSE 495B148H02 LOCATOR SPACER D341686
LOT 2 NEW DODGE 117073 LOCK ASSEMBLY 1008 X 5/8IN TAPER BUSHING B379518
LOT 5 NEW GARDNER DENVER 2010408 WIRE-LOCKING HAIRPIN CLIP D320430
LOT 2 NEW INTRALOX SK20RAR SPLIT HUB SPROCKET 1IN BORE B222962
NEW TIPPER TIE 39-0011 GUIDE PIN 6IN LONG 3/8IN OD D217805
NEW AMP-ROSE 42C982S2 ADJUSTING ARM D340250
LOT 2 NEW BRUSH FUSES ECSR 1/10 RELIANCE FUSE 600V-AC 1/10A AMP FUSE D382487
NEW WAUKESHA 137-1455X STAINLESS 2IN BUTT WELD TEE SANITARY D348725
LOT 5 ALLEN BRADLEY ASSORTED N2 N4X NN1 OVERLOAD RELAY REPLACEMENT PARTS B447720
LOT 2 NEW TIMKEN 473224 SHAFT OIL SEAL 1-7/16X2-1/8X5/?16IN B301043
NEW TEXWRAP 75-MU007-B ALUMINUM BAR BEARING PLATE 2-1/2 X 2 X 3/8 IN D448173
NEW HOFFMAN ENGINEERING HOF-ADP2 LARGE DATA WALL POCKET D378889
LOT 11 NEW ARLINGTON 1IN SEAL TIGHT COUDUIT 90DEG ELBOW FITTING D287226
NEW BOSCH DOBOY 244753 HOT AIR SEALER HOSE D229769
NEW LOVEJOY D8 16479 5/8IN SOLID BORE UNIVERSAL JOINT D507011