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1771-OND現(xiàn)貨 in stock! 歡迎來(lái)電咨詢~??！

單元機(jī)組控制系統(tǒng)一體化的崛起
　　隨著一些電廠將電氣發(fā)變組和廠用電系統(tǒng)的控制(ECS)功能納入DCS的SCS控制功能范圍，ETS控制功能改由DCS模件構(gòu)成，DEH與DCS的軟硬件合二為一，以及一些機(jī)組的煙氣濕法脫硫控制直接進(jìn)入單元機(jī)組DCS控制的成功運(yùn)行，標(biāo)志著控制系統(tǒng)一體化，在DCS技術(shù)的發(fā)展推動(dòng)下而走向成熟。
　　由于一體化減少了信號(hào)間的連接接口以及因接口及線路異常帶來(lái)的傳遞過(guò)程故障，減少了備品備件的品種和數(shù)量，降低了維護(hù)的工作量及費(fèi)用，所以近幾年一體化控制系統(tǒng)在不同容量的新建機(jī)組中逐漸得到應(yīng)用，如浙江華能玉環(huán)電廠4×1000MW機(jī)組、臺(tái)州電廠2×300MW機(jī)組和安徽鳳臺(tái)電廠4×600MW機(jī)組均全廠采用西屋Ovation系統(tǒng)，國(guó)華浙能寧海電廠4×600MW機(jī)組全廠采用西門(mén)子公司的T-XP系統(tǒng)，大唐烏沙山電廠4×600MW機(jī)組全廠采用I/A系統(tǒng)，國(guó)華臺(tái)山電廠2×1000MW機(jī)組采用北京和利時(shí)公司系統(tǒng)，浙江樂(lè)清電廠4×600MW機(jī)組全廠采用ABB公司的SYMPHONY系統(tǒng)等。 控制系統(tǒng)一體化的實(shí)現(xiàn)，是電力行業(yè)DCS應(yīng)用功能快速發(fā)展的體現(xiàn)。排除人為因素外，控制系統(tǒng)一體化將為越來(lái)越多的電廠所采用。
　　3)DCS結(jié)構(gòu)變化，應(yīng)用技術(shù)得到快速發(fā)展
　　隨著電子技術(shù)的發(fā)展，近年來(lái)DCS系統(tǒng)在結(jié)構(gòu)上發(fā)生變化。過(guò)去強(qiáng)調(diào)的是控制功能盡可能分散，由此帶來(lái)的是使用過(guò)多的控制器和接口間連接。但過(guò)多的控制器和接口間連接，不一定能提高系統(tǒng)運(yùn)行可靠性，相反倒有可能導(dǎo)致故障停機(jī)的概率增加。何況單元機(jī)組各個(gè)控制系統(tǒng)間的信號(hào)聯(lián)系千絲萬(wàn)縷，互相牽連，一對(duì)控制器故障就可能導(dǎo)致機(jī)組停機(jī)，即使沒(méi)有直接導(dǎo)致停機(jī)，也會(huì)影響其它控制器因失去正確的信號(hào)而不能正常工作。
　　因此隨之控制器功能與容量的成倍增加、更多安全措施(包括采用安全性控制器)、冗余技術(shù)的采用(有的DCS的核心部件CPU，采用2×2冗余方式)以及速度與可靠性的提高，目前DCS正在轉(zhuǎn)向適度集中，將相互聯(lián)系密切的多個(gè)控制系統(tǒng)和非常復(fù)雜的控制功能集中在一對(duì)控制器中，以及上述所說(shuō)的單元機(jī)組采用一體化控制系統(tǒng)，正成為DCS應(yīng)用技術(shù)發(fā)展的新方向，這不但減少了故障環(huán)節(jié)，還因內(nèi)部信息交換方便和信息傳遞途徑的減少而提高了可靠性。
　　此外，隨著近幾年DCS應(yīng)用技術(shù)的發(fā)展，如采用通用化的硬件平臺(tái)，獨(dú)立的應(yīng)用體系，標(biāo)準(zhǔn)化的通訊協(xié)議，PLC控制器額融入，F(xiàn)CS功能的實(shí)現(xiàn)，一鍵啟動(dòng)技術(shù)的成功應(yīng)用等，都為DCS增添了新的活力，功能進(jìn)一步提高，應(yīng)用范圍更加寬廣。
　　4)全廠輔控系統(tǒng)走向集中監(jiān)控
　　一個(gè)火電廠有10多個(gè)輔助車間，國(guó)內(nèi)過(guò)去通常都是由PLC和上位機(jī)構(gòu)成各自的網(wǎng)絡(luò)，在各車間控制室內(nèi)單獨(dú)控制，因此得配備大量的運(yùn)行人員。為了提高外圍設(shè)備控制水平和勞動(dòng)生產(chǎn)率，達(dá)到減員增效的目的，隨著DCS技術(shù)和網(wǎng)絡(luò)通訊功能的提高，目前各個(gè)輔助車間的控制已趨向適度集中，
　　整合成一個(gè)輔控網(wǎng)(簡(jiǎn)稱BOP 即Balance Of Plant的縮寫(xiě))方向發(fā)展，即將相互獨(dú)立的各個(gè)外圍輔助系統(tǒng)，利用計(jì)算機(jī)及網(wǎng)絡(luò)技術(shù)進(jìn)行集成，在全廠IT系統(tǒng)上進(jìn)行運(yùn)行狀況監(jiān)控，實(shí)現(xiàn)外圍控制少人值班或無(wú)人值班。
　　近幾年新建工程迅速向這個(gè)方向發(fā)展。如國(guó)華浙能寧海電廠一期工程(4×600MW)燃煤機(jī)組BOP覆蓋了水、煤、灰等共13個(gè)輔助車間子系統(tǒng)的監(jiān)控，下設(shè)水、煤、灰三個(gè)監(jiān)控點(diǎn)，集中監(jiān)控點(diǎn)設(shè)在四機(jī)一控室里，打破了傳統(tǒng)的全廠輔助車間運(yùn)行管理模式，不但比常規(guī)減員30%，還提升了全廠運(yùn)行管理水平。整個(gè)輔控網(wǎng)的硬件和軟件的統(tǒng)一，減少了庫(kù)存?zhèn)淦穫浼叭粘９芾砭S護(hù)費(fèi)用。由于取消了多個(gè)就地控制室，使得基建費(fèi)用和今后的維護(hù)費(fèi)用都減少。一些老廠的輔助車間也在進(jìn)行BOP改造，其中浙江省第一家完成改造的是嘉興發(fā)電廠2×300MW機(jī)組，取得較好效果。

RELEASE SuperMicro X9DBL-IF Motherboard CHECK W/ US FOR AVAILABILITY

Siemens 6ES7 132-4BB31-0AA0 OUTPUT MODULE 2POINT 2AMP 24VDC Lot of 2

SIEMENS SINUMERIK 6FX1122-1AC02 6FX11221AC02

ProSoft MVI46-MNET Modbus TCP/IP Client/Server Communication Module SLC500

SIEMENS 6sn1151-1bx20-3ae0 Simodrive Drive Module

SIEMENS Simodrive 6SC 6111-2AA00_T-3469865 _ 6SC61112AA00_6SC 6111-2AAOO

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AllenBradley1746-IO12SeriesBInputOutputModuleSLC500Bulletin1746

ALLEN BRADLEY SLC 500 4-CHANNEL ANALOG INPUT / OUTPUT MODULE 1746 F104V

ABB ROBOT SERVO 3HAC 3579-1/04

A06B-0143-B088#7076 FANUC SERVO MOTORS REMANUFACTURED

0020-39001 - VALVE, Throttle PLUNGER

MODICON PC-BALU-821 NSFP PCBALU821

ALLEN BRADLEY 150-B360NBD USPP 150B360NBD

ALLEN BRADLEY 1326AB-C2C-21 USPP 1326ABC2C21

GENERAL ELECTRIC 269-120N-125VDC USPP 269120N125VDC

SQUARE D HDMPM21012186 NSFP HDMPM21012186

SIEMENS 6SC6-120-0FE01 USPP 6SC61200FE01

ASEA BROWN BOVERI 57340001-K/2 USPP 57340001K2

Siemens 6ES5 943-7UB11 -- 6ES59437UB11

Siemens SIMATIC S5 6ES5 456 7LA11

SIEMENS 6ES5-700-2LA12 NSPP 6ES57002LA12

Siemens 6ES5 456-4UA12SERIES DIGITAL OUTPUT MODULE 16POINT 55025

SIEMENS 64kB MMC 6ES7953-8LF20-0AA0

Siemens HMI PP7 6AV3688-3AA03-0AX0 Operator panel

SANS DIGITAL MR4UT MobileRaid 4-bay hardware RAID

Square D FAL34025

SIEMENS HTRI-D INTEL INTERFACE DUAL MODULE

SERIES E CAT REV K01 F/W REV D.1

Siemens 6SE7018-0EA84-1HF3

Siemens TP7 6AV3607-1NH01-0AX0 Touch Glasss

Schneider Modicon DEP210/AS-BDEP-210 INPUT MODULE NIB

Schneider Modicon ASB885002 GOULD MODULE AS-B885-002

Schneider Modicon AS-B837-016 USPP ASB837016

Schneider Modicon SEALED AS-B829-116 MODULE

Schneider Modicon B804 AS-B804-016 115V 16PT INPUT MOD ASSEMBLY

Schneider Modicon AS-H819-209 Housing Assembly 800 rack plc 19"

Schneider PLC Analog Output Module 170AAO12000

Siemens 6ES5430-4UA12 Simatic Input Module 20280

Roland Fantom XR SRX-05 upgraded 128-Voice Synthesizer / Sampler Module-MIDI 2

SIEMENS CONTROL MONITOR M IPC3510A300MGT TOUCH SCREEN

SIEMENS SINUMERIK 840DE 6FC5356-0BB14-0AA0 NCU 561.4

RELIANCE ELECTRIC NETWORK COMMUNICATION PLC MODULE 57404-1 57-404-1 57404-1F

SIEMENS CONTROLLER CARD 6SN1118-0AD11-0AA0 ~

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SIEMENS 6FC5110-0CB01-0AA0 6FC51140CB010AA0 version E

ALLENBRADLEY2711P-T9C1OPERATORINTERFACEPANELVIEW900SERIESCREVC

Allen Bradley Versaview 1500P 6181P-15TPXPHSS Rev A Ser C For Windows XP AB/COA

ABB FI803F 3BDH000032R1 good in condition for industry use

Advanced Energy ATX-600 Impedance Matching Network -

(M3) 1 BAYSIDE ( Parker) RA142-010-LB GEAR HEAD MOTOR M3

MARPOSS 3014332600 USPP 3014332600

ALLEN BRADLEY 1334-FOB-T4 USPP 1334FOBT4

GE FANUC IC3600LSRB1 NSPP IC3600LSRB1

FANUC A06B-6058-H221 USPP A06B6058H221

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RELIANCE ELECTRIC 0-60002-5A USPP 0600025A

SIEMENS 6DS1302-8AB USPP 6DS13028AB

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Siemens C79451-A3276-A1

SIEMENS 6ES5-305-7LB11 NSPP 6ES53057LB11

Square D 8020 SCP-321

NUM Interface Module 32 E _ 263202926 _ 2632O2926

WS-C3750G-48TS-S CISCO 3750G-48TS SWICTH W/1 YR -WSC3750G48TSS

Siemens 6ES7232-0HB20-0XA0 6ES72320HB200XA0 FreeShip

SIEMENS SIMATIC PANEL PC870 6AU7705-3CA40-0AA0 Membrane Keypad

Reliance 61C22A

Schneider Modicon ASWBXT201 Compact Primary Rack AS-WBXT-201

Schneider Modicon AS-B374-001 NSFP ASB374001

Schneider Modicon AS-T584-002 USPP AST584002

Schneider Modicon AS-BDAP-210 OUTPUT MODULE 8 POINT 24-230VAC

Schneider Modicon AS-B824-000 I/O MODULE / 24 vdc output

MODICON AS-B355-001 OUTPUT MODULE OLD STOCK FREE SAME DAY SHIPPING USA

Siemens Input Module 6ES5 430-7LA12

Siemens 505-4232 Input Module 5054232

SIEMENS OUTPUT MODULE 2AMP 24VDC 1P 6ES7 132-4BB30-0AA0

SIEMENS Simodrive Sinumerik 6SC 6100-0GB11 Power Supply Board

TELEMECANIQUE TSX-SCM-2111 COMMUNICATION MODULE TSXSCM2111

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SIEMENS SIMODRIVE (POWER SUPPLY) 6SN1145-1AA01-0AA1

SIEMENS 6FC5357-0BB12-0AE0 SINUMERIK 840D 6FC5247-0AA00-0AA3

ADVANTECH PCM-4823 Single Board Computer

Allen-Bradley 1746-OW16 Output Module

ABB BAILEY SYMPHONY CONTROLS DIGITAL IMASI23 ANALOG INPUT SLAVE MODULE 84812

ADEPT TECH 10330-00500 NSPP 1033000500

(#3461) SEW Eurodrive MoviDrive MDS60A0300-503-4-00 NIB

HUNKAR LABS 315-0 USPP 3150

TB WOODS WFC-4050-0CHT USPP WFC40500CHT

DIGITAL COMPUTER 5016017-01-D1-P3 USPP 501601701D1P3

CROUSE HINDS WSR6351 NSPP WSR6351

PACIFIC SCIENTIFIC SC752A001-02 USPP SC752A00102

MODICON AS-506P-002 NSFP AS506P002

HERION 59-989-15 USPP 5998915

Siemens 6ES5 308-3UB11 NIB Free Ship

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Siemens 6ES5 232-1AA11 S5 PLC CARD CIRCUIT BOARD MODULE EMA-W88 56781

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Landis Gyr Powers System 600 536-050 LOT Power Modules Trunk Interface HVAC

YASKAWA ELECTRIC JAMSC-B1051B USPP JAMSCB1051B

SIEMENS 6ES7 222-1HF32-0XA0 6ES7222-1HF32-0XA0 FreeShip

Siemens OP37 6AV3 637-1LL00-0AX1 Membrane Keypad

Red Lion PRA1-3021

Schneider Modicon AS-B810-008 Isolated Output Module 115 VAC ASB810008

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Schneider Modicon AS-B239

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Modicon XBT FC044610 Telemecanique Magelis 24VDC 35W

Siemens Simatic S7-200 PLC 6ES7 221-1BF22-0XA0 DC Input Module

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Advantech PCM-3810 A2 PC/104

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ASEA BROWN BOVERI DSQC 314B USPP DSQC314B

MITSUBISHI Q173-CPU-N USPP Q173CPUN

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ASEA BROWN BOVERI 3HAB2220-1 USPP 3HAB22201

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Siemens LOGO! 230RC 6ED1 052-1FB00-0BA5 6ED10521FB000BA5

Omron 3G2A5-OC224

Schneider Modicon AS-P120-000 PLC

Schneider Modicon LEVEL-3 16K 3CARD CHASSIS 584 AS-584A-320

Schneider Modicon AS-H819-100 USPP ASH819100

Schneider Modicon Gould/ AS-984A-008

Schneider Modicon AS-BDAP-218

Schneider Modicon REED RELAY OUTPUT MODULE AS-B840-108 REPAIRED

Telemecanique HMI to Allen Bradley Logix1000 Cable

Schneider TELEMECANIQUE Modicon TWDNCO1M

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GE FANUC COMMUNICATIONS CONTROL MODULE IC693CMM311R

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SIEMENS SINUMERIK 12.1" TFT OPERATOR INTERFACE PANEL 6FC5203-0AF02-0AA1

SIEMENS IBM 6400 Model 010 Printer Ribbons - IBM 6400 Model 10

ALLEN-BRADLEY DATALINER OPERATOR INTERFACE CAT2706-D21J8

A-B NIPPONDENSO 8500-B1C-L1B Motors-AC Servo [PZ4]

AC Motor Invertor - 30 HP - 600 Volt - Three Phase Input

A06B-0602-B027 GETTY'S DC SERVOMOTOR MODEL 20

750' Rider 500-500-350 USE Wire Direct Burial Aluminum Triplex

RELIANCE ELECTRIC S6R-9006 NSFP S6R9006

ALLEN BRADLEY 5250-LP1 USPP 5250LP1

ALLEN BRADLEY 2094-BC07-M05S USPP 2094BC07M05S

INDRAMAT KDS1.1-150-300-W1 USPP KDS11150300W1

YASKAWA ELECTRIC CACR-TM333Z1SPY8 NSFP CACRTM333Z1SPY8

WESTINGHOUSE 210P085H01-1 USPP 210P085H011

HYDE PARK SP106 USPP SP106

Siemens 6ES5-244-3AA22 USPP 6ES52443AA22

SIEMENS 6ES5 376-1AA31 -- 6ES53761AA31

SIEMENS Interface Module 6ES5 752-0AA43 WITH PAPERWORK

Siemens Analog Input Module 6ES5 460-7LA12

Siemens 6ES7 131-0BL00-0XB0 6ES7131-0BL00-0XB0 ET200B

SIEMENS MP370 12.1" MP370-12 6ES7542-0DA10-0AX0 Touch Screen Display Glass

Reliance Automate 30 45C305A 45C305 Processor

Texas Instruments 505-4508

STATIC CONTROLS 920-M-2-V 4.3 INTERFACE DISPLAY MODULE

UBR7246VXR CISCO UBR 7246 4MC 2PA SLOTS 1YR - ASK 4 QTY

Siemens Control Board C98043-A1304-L Simodrive

Modicon AS-WBXT-201

Schneider Modicon NIBAutomation Output Module DAP 210/AS-BDAP-210

Schneider Modicon AEG/GOULD/MODICON/ AS-E381-902 EXECUTIVE CARTRIDGE XLNT

Schneider Modicon AS-BDEP-112 NSFP ASBDEP112

Schneider Modicon ASBDAP216 Compact Out Module AS-BDAP-216

Schneider Modicon -AS-500P-000

Schneider Modicon DAP 218 DAP218 Output Module AS B075-000 94V

Schneider Proximity Sensor XS530B1DAL2 NIB DC12-48V

SCHNEIDER MODICON TSX QUANTUM 115V AC INPUT MODULE 140 DAI 540 00

QX41 Mitsubishi PLC 32 Point DC Input

SIEMENS 6ES5456-4UA12 Digital Output Module NIB-FS

SIEMENS Sinumerik 802S 802C 802 5.7 inch LCD screen display

Mitsubishi AJ71UC24 Melsec Communication Module Link

SIEMENS SIMODRIVE 6SN1118-0NH11-0AA0

SIEMENS SINUMERIK CNC KEY BOARD 6FC5203-0AC00-0AA2

SIEMENS /MOORE QLCAMAAN QUADLOG CAM MODULE 16404-1/1

ALLEN-BRADLEY VERSAVIEW CE 1500H 6182H-15BRH4D 6189-RPRH LOGIC MODULE

Allen Bradley SLC 500 1746-OB16 Ser D Output Module 10-50VDC

ABB ROBOTIC DRIVE 3HAB-5845-1/2-DSQC334

A06B-0147-B075#0008 FANUC SERVO MOTORS REMANUFACTURED

01KA509430 RELIANCE DC MOTORS

NACHI AUXL-111 USPP AUXL111

ALLEN BRADLEY 1756-L53 NSPP 1756L53

ALLEN BRADLEY 1336-B015-EAE-S1 USPP 1336B015EAES1

GENERAL ELECTRIC 531X122PCNACG1 NSFP 531X122PCNACG1

SQUARE D S164N NSPP S164N

SIEMENS 6SE7021-0EA61 USPP 6SE70210EA61

BALDOR GHF2030BH USPP GHF2030BH

Siemens 6ES5 944-7UB21 6ES59447UB21

Siemens Simatic S5 6ES5 928-3UB11 CPU 6ES5-928-3UB11

SIEMENS 6ES5-701-1LA12/6ES5701-1LA12 9-SLOT EXPANSION RACK NIB

Siemens 6ES5 482-8MA13 I/O MODULE 6ES54828MA13

Siemens 6AV3607-1JC30-0AX1 OP7 in Box ping Worldwide

Siemens Inverter 6SE9521-0DC40

Samsung NP400B2B-A01US Notebook laptop 2.50 GHz 12.5" Screen Size 1.3 MP Cam

Syscon C400FJA3