描述
300MW及以上容量機(jī)組的熱工控制已全面采用DCS控制系統(tǒng)，逐步形成了數(shù)據(jù)采集(DAS)、模擬量控制(MCS)、順序控制(SCS)、燃燒器管理(BMS)四大系統(tǒng)。從實(shí)際運(yùn)行情況來看，DCS較好地實(shí)現(xiàn)了其控制功能，并發(fā)揮了安全經(jīng)濟(jì)、使用可靠的優(yōu)點(diǎn)，取得了良好的效果，而電氣控制仍然采用較常規(guī)的控制手段，使用盤臺上一對一硬手操方式。隨著計算機(jī)的快速發(fā)展和控制技術(shù)的不斷提高，使得機(jī)爐控制與電氣控制日益顯得不協(xié)調(diào)，控制水平也逐漸拉大。為了解決這一矛盾，有效的辦法就是將電氣納入DCS控制之中，這樣既利用DCS已成熟的分散控制技術(shù)，又能提高電氣控制水平。電氣控制納入DCS以后，可充分利用DCS的手段，使電氣防誤操作等功能實(shí)現(xiàn)更方便、更完備，并且將相關(guān)量的顯示報警與電氣設(shè)備的控制調(diào)節(jié)有機(jī)地結(jié)合起來，有效提高整個電氣控制的安全性和可靠性。
1997年7月原電力部召開了熱工自動化領(lǐng)導(dǎo)小組第六次擴(kuò)大會，對電氣設(shè)計如何與DCS配合提出了具體意見：“實(shí)現(xiàn)爐、機(jī)、電集中管理，使電廠主控室爐、機(jī)、電控制水平協(xié)調(diào)發(fā)展是必要的而且在現(xiàn)有技術(shù)和裝備條件下是可行的，可以起到省人、省主控制室面積，便于集控值班運(yùn)行的作用，而且不提高造價。領(lǐng)導(dǎo)小組要求以積極的態(tài)度加入電氣納入DCS的工程試點(diǎn)。”按此精神，九江電廠三期2×350MW、信陽電廠一期2×300MW、益陽電廠一期2×300MW工程電氣系統(tǒng)均納入DCS監(jiān)控?，F(xiàn)依據(jù)這幾個工程中具體實(shí)施的過程和要求，就電氣系統(tǒng)納入DCS監(jiān)控的一些有關(guān)問題進(jìn)行分析和探討。
產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢價格，大量現(xiàn)貨。
主營DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌：ABB???,AB??,GE,FOXBORO,本特利，英維思，伍德沃德，西屋，瑞恩，施耐德，西門子，摩托羅拉，安川。力士樂。ACSO，橫河等進(jìn)口品牌。 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA ? 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實(shí)力庫存商家
YORK ROTARY SCREW COMPRESSOR W/YORK ISN CODEPAK
DYNATEC 510-6-P12-24 GLUE MACHINE USED*
GIANT LOT OF FUSES,GOULD SHAWMUT ,FUSETRON,BUSS,?
GOULDS ITT 1X1 1/4-6 COMMERCIAL WATER PUMP 1/2 HP, NEW
RELIANCE ELECTRIC 3RA2004 SERVO DRIVE USED
RELIANCE ELECTRIC BRUSHLESS AC SERVO CONTROLLER, USED
GRACO 205395, 50:1 FIREBALL BARRELL 425 AIR PUMP, USED
MAGNETEK L717 GP+ 10 HP E PLUS ADJUSTABLE SPEED
RELIANCE ELECTRIC 3RA2002 SERVO DRIVE USED
TEST GUAGE CART – 3 GAUGES, 3 DRAWERS, USED
RELIANCE ELECTRIC 3RA2001 SERVO DRIVE USED
RELIANCE ELECTRIC 3RA2008U SERVO CONTROLLER USED
WESTINGHOUSE LD3600WK 600A CIRCUIT BREAKER USED
LIGHTNIN ND-4A MIXER, USED
AIR DRAULICS 10002510 CYCLINDER ,USED
VALMET PIC-200/100-170?-31488 SS PNEUMATIC CYLINDER, NEW
WESTINGHOUSE HKD3400F CIRCUIT BREAKER USED
VIKING HL4125 HYDRAULIC PUMP, 1 5/8x 11/16 SHAFT, USED
VON RUDEN 90-464 RATIO 1:1:1 GEAR BOX, USED
ROSEMOUNT ANALYTICAL pH MODEL 1003 UNILOC DIVISION,NEW
GENERAL ELECTRIC E10F2 1HP ELECTRIC MOTOR NEW
EFDYN MASA 2 X 6 PS HV 4598 SHOCK ABSORBER NEW
GENERAL ELECTRIC 5KC49PN0446X 1 HP ELECTRIC MOTOR, NEW
ELECTROMOTIVE SBPN-6-WH SWITCH NEW
RELIANCE ELECTRIC 3RA2004 SERVO DRIVE USED
ALLEN-BRADLEY 2192F-BJC-24J MOTOR CONTROL CTR UNIT USED
ALLEN-BRADLEY 2192F-BJC-24-11?0 MOTOR CTR UNIT USED
ALLEN-BRADLEY 2154B-AAB-38 MOTOR CTRL CTR USED
ALLEN-BRADLEY 2112B-BDBD-24J-?98-106-107 MOTOR CTRL CTR
ALLEN-BRADLEY 2112B-BDBD-1-4G?-24J-98-106-107 MOTOR CTR
WESTINGHOUSE JDB3225W 225A CIRCUIT BREAKER/JDB 25K USED
BOSTON GEAR 88KRF724-408-87?-J MOTOR USED
GENERAL ELECTRIC DS3827BS6 THYRISTOR, NEW
HYTROL 4AC 20-1 RH GEAR REDUCER NEW
KLOCKNER-MOELLE?R N 11-400-CNA CIRCUIT BREAKER USED
NIBCO WD-3110-0 VALVE NEW
FIFE CSP-01-06 ESU01 SENSOR USED
TOP TECH TT-E75-3SP2 3/4 HP ELECTRIC MOTOR , NEW
IDT PERIPHERAL CONTROL UNIT POWER SUPPLY USED
ALLEN-BRADLEY 2192F-D23444O/3?-2E MOTOR CTRL CTR USED
LOT OF 6 OMRON G3PA-210B SOLID STATE RELAYS, USED
ALLEN-BRADLEY 1771-AB CHASSIS/WITH MODULES USED
FASCO E2204 1/3 HP ELECTRIC MOTOR , NEW
GENERAL ELECTRIC L737BS 1/4 HP ELECTRIC MOTOR, NEW
RELIANCE/TIGEAR 7916130DB 1.39HP GEARMOTOR USED
GENERAL ELECTRIC L736CS 1/4HP MOTOR NEW
DODGE TIGEAR MR34619 1HP GEAR BOX, USED
NIHON SEIKI BN-6041-63-30L PNEUMATIC CYLINDER, NEW
EATON IDT 92-00314-09 UNIVERSAL PCU, USED
ALLEN-BRADLEY 2192F-U4-26J MOTOR CONTROL CTR UNIT USED
E G D MFG SS20 2×2 INDL SHOCK ABSORBER CYLINDER, NEW
ALLEN-BRADLEY 160-BA01NSF1P1 STARTER USED
ALLEN-BRADLEY 1771-ARC REMOTE I/O ADAPTER MODULE
LOT OF 4/ OMRON D4A-2501N LIMIT SWITCH USED
INDUSTRIAL CONTROL CFM61 SWITCH NEW
HBM PLC-XX200 LOAD CELL, NEW*
GE DS3820HSM HEAT SINK, NEW
WESTINGHOUSE JDB3225W CIRCUIT BREAKER USED
ACOPIAN A24MT350 DC POWER SUPPLY USED
RELIANCE ELECTRIC 3RA2002 SERVO DRIVE USED
RELIANCE ELECTRIC 3RA2002 SERVO DRIVE USED
HIMMELSTEIN 6-201 TRANSDUCER USED
ALLEN-BRADLEY 1771-P2 POWER SUPPLY USED
TELEMECANIQUE LB1 LB03P MOTOR STARTER USED
LOT OF 2/ ALLEN-BRADLEY 509-B0D STARTER USED
KLOCKNER MOELLER DIL1M STARTER USED
ALLEN-BRADLEY 700-RTA10L100A1 RELAY USED
ALLEN-BRADLEY 1771-P2 POWER SUPPLY, USED
LOT OF 2/ LEVITON 2336 FLANGED OUTLET NEW
WESTINGHOUSE FD-K 100A CIRCUIT BREAKER USED
SHARK/RELIANCE ELECTRIC 45C922 SLOT RACK USED
WARNER ELECTRIC MC4 PRECISION TORK, USED
SMC NAQ5000 VALVE USED
SMC NAR825-N12 VALVE USED
SMC VP7-8-FG-S VALVE USED
3 ALLEN-BRADLEY 1794-ASB FLEX I/O POWER SUPPLY, USED
SIEMENS 1P GES7 221-1EF00-0XA0 MODULE USED
SIEMENS 1P GES7 222-1EF00-0XA0 MODULE USED
SMC RSH50-30BL CYLINDER NEW
VERSA VIS-2302 PNEUMATIC VALVE, NEW
SMC NVFS2200-1F PNEUMATIC VALVE, NEW
SMC NVFS2100-5FZ PNEUMATIC VALVE, NEW
SMC NVS4114-0009D PNEUMATIC VALVE, new
SMC NVZ5140 PNEUMATIC VALVE, NEW
SMC VFS2200-5FZ PNEUMATIC VALVE,NEW
SMC NVFS2100-1F PNEUMATIC VALVE, NEW
NORGREN S-A03205C CYCLINDER USED
PIAB XLC60 3301044 VACUUM PUMP,USED
SMC XTO-1239 VALVE NEW
ABB GCB0432 R2 DRIVE USED
PLC模塊，可編程控制器，CPU模塊，IO模塊，AI模塊，通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅
15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實(shí)力庫存商家
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