国产精品久久久久久久久,四季AV一区二区夜夜嗨,日韩精品无码中文字幕电影,www.五月婷婷.com

1756-IC16現(xiàn)貨 in stock! 歡迎來電咨詢~?。?

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的傳遞過程故障，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)，國華浙能寧海電廠4×600MW機(jī)組全廠采用西門子公司的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DCS系統(tǒng)在結(jié)構(gòu)上發(fā)生變化。過去強(qiáng)調(diào)的是控制功能盡可能分散，由此帶來的是使用過多的控制器和接口間連接。但過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，國內(nèi)過去通常都是由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)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人值班。
　　近幾年新建工程迅速向這個(gè)方向發(fā)展。如國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。

SIEMENS Sinumerik MachiControl Panel 3T 548 025 9004

SIEMENS Sinumerik DM 16 E-MODUL 6FC5111-0CA01-0AA0

SIEMENS 1P-6SN1123-1AA00-0DA0 Drives

SIEMENS 6SN1123-1AA00-0HA1 SIMODRIVE MODULE 6SN1118-0AA11-0AA1

SIEMENS /MOORE 16201-1 SDM/CDM RELAY APACS QUADLOG A5E00271285/11

ALLENBRADLEY2711P-T9C1OPERATORINTERFACEPANELVIEW900SERIESCREVC

ALLEN-BRADLEY 700-P800A-1 RELAY 8NO 120VAC 10AMP XLNT

ABB 3BSE042235R1 PP845, , 3BSE042235R1,

ACCURAY 067452-003 USPP 067452003

A06B-6079-H291 A06B6079H291 FANUC SERVO AMPLIFIER 1 PCS

800MHz Oscilloscope 2CH 5GSa/s 128M Memory Depth 8.4'' TFTLCD 800x600 USB 5082C

SIEMENS 6DD1-670-0AF0 USPP 6DD16700AF0

ALLEN BRADLEY SA3100-B030-AN-L6R USPP SA3100B030ANL6R

ALLEN BRADLEY 6181-AFBCBCZZZ USPP 6181AFBCBCZZZ

KODAK 1350503 NSFP 1350503

GIDDINGS & LEWIS 401-34438-20 NSFP 4013443820

YOKOGAWA CR122-2/H1/W2 NSFP CR1222H1W2

ORMEC SAC-D08M/A USPP SACD08MA

Siemens 6ES5-318-8MA12 NSFP 6ES53188MA12

SIEMENS 6ES5 436-7LA11 6ES54367LA11

SIEMENS S5 6ES5 777-1BC00 Bus Terminal

Siemens Interface Module 6ES5 312-5CA11 37350

Siemens 6ES7 223-1PH20-0XA0 6ES7223-1PH20-0XA0

Siemens OP37 6AV3637-7AB16-1AM0 Membrane Keypad

QUAD CORE Q9400 3.4GHz OCED GAMING PC w/NVIDIA GT220 1G

Genuine Cisco WIC-4ESW Interface Module For 1721 1760 2600 2600XM 2691

Thermal Separation Products Multi-Solvent Module SP4510-CH-1 Date Interface

Siemens 315-2DP 6ES7 315-2AG10-0AA0

Siemens EPROM 6ES5375-0LA21 6ES5 375-0LA21

Modicon PC-A984-130

Schneider Modicon Groupe AS-BDEP-210 ASBDEP210

Schneider Modicon AS-BDEP-220 BRAND Guaranteed Discreet Input ASBDEP220

Schneider Modicon AS-C921-000 NSFP ASC921000

Schneider Modicon AS-M84A-002

Schneider Modicon AS-B840-108 ASB840108

Schneider Modicon MEMORY CPU AS-S480-207 S480-200 ASS480207

Schneider Telemecanique XBT NU400 XBTNU400

SCHNEIDER 140DAI55300 TSX QUANTUM 140-DAI-553-00 in Box

PROTECH PIRAMID SDI-77XL PASSIVE INFRARED DETECTOR

SIEMENS 6ES5 470-8MC12 ANALOG OUTPUT MODULE

SIEMENS 6DD1-684-0DC0/6DD1684-0DC0/465 684 9032.00 PSV/ATV CABLE NIB

IBM 11F4814 Communication Controller Module Modem

SIEMENS SIMODRIVE 6SN1145-1BA01-0BA1SINUMETIK 840D NCU-BOX 6FC52476FC5356 #2ZH

SIEMENS SINUMERIK 820 T 6FC3261-1AC-Z CONTROL PANEL 5703029301.00 TESTED

SIEMENS MOORE PRODUCT VALVE 73N-FR B/M 10637-/14MC

Allen-Bradley PanelView 900 2711-K9C3 Series C Revision B WARRANTY

54645D Mixed Signal Oscilloscope, all Accessories, Calibrated, 30

ABB Soft Starter PST300-600-70

A06B-0153-B075#7008 FANUC SERVO MOTORS REMANUFACTURED

705330-325

RELIANCE ELECTRIC 0-52842 NSFP 052842

ALLEN BRADLEY 1785-L20E/E NSFP 1785L20EE

ALLEN BRADLEY 1336Z-SB017-N NSFP 1336ZSB017N

GENERAL ELECTRIC DS3800NHVE1C1C USPP DS3800NHVE1C1C

THOMSON INDUSTRIES 2DB16-JOBGX84 NSFP 2DB16JOBGX84

SUN MICROSYSTEMS T9840C USPP T9840C

FANUC A06B-0227-B005 USPP A06B0227B005

Siemens 6ES5-095-8MA05 CPU Module

SIEMENS 6ES5 308-3UA12 6ES5308-3UA12 Serial Interface EPROM 16kB CASING

SIEMENS 6ES5-911-0AA42 USPP 6ES59110AA42

Siemens 6ES5 701-1LA12 6ES5 701-1LA12S5 ER 701-1 9-Slot Expansion Rack

SIEMENS 6ED1 052-1CC00-0BA4 ping

SIEMENS LOGO! 6ED1 052-1HA00-0BA0 24R

RME HAMMERFALL HDSP 9632 AUDIO INTERFACE SOUND CARD

Telemecanique VW3A28100

SIMATIC S7 6ES71511BA020AB0 6ES7 151-1BA02-0AB0

Wago 750-315 MODBUS FIELDBUS COUPLER

Siemens Basic Operator Panel BOP20 6SL3055-0AA00-4BA0

Modicon AS-T211-001

Schneider Modicon Automation Power Supply AS-P120-000 2869

Schneider Modicon AEG/GOULD// AS-B806-032/AS-8713-000 OUTPUT MODULE 120VAC XLNT

Schneider Modicon AS-B883-101 Free Ship

Schneider Modicon AS-984A-832 MODULE 1 YR WARR OBSOLETE

Schneider Modicon Output Module AS-BDAP-210 BDAP 210

Schneider Modicon AS-P120-000/ASP120000 Power Supply SEALED

SCHNEIDER AUTOMATION 8-POINT OUTPUT MODULE TSX-DST-882 TSXDST882

SIEMENS 39VIMCCN VOLTAGE INPUT MODULE NIBBD

RELIANCE ELECTRIC 45C-200 USPP 45C200

SIEMENS 6ES7-322-1BL00-0AA0/6ES7322-1BL00-0AA0 SIMATIC OUTPUT MODULE XLNT

SIEMENS Sinumerik System 6 CNC Control Operating Manual

Omron GRT1-DRT PLC Communication Adapter W/ Smartslice Modules

SIEMENS SIMO DRIVE LT MODULE 6SN1142-1AA00-0DA1

SIEMENS SINUMERIK810/840 ADAPTER 6FC5247-0AA31-0AA0

SIEMENS PLC battery 6FC5247-0AA18-0AA0 575332 3.0V

ALLENBRADLEY1771-OGTTLOUTPUTMODULE

ALLEN BRADLEY SLC500 OUTPUT MODULE 1746-OB8/A S26D

ABB NINT-70

Z-Technology Drive Test System

(YOKOGAWA)DCS NC4 B Nest Common Card good in condition for industry use

MODICON AM-M909-000 USPP AMM909000

ALLEN BRADLEY 1394C-AM50 NSPP 1394CAM50

GENERAL ELECTRIC L90-D00-HCL-F8A-H6C-LXX-N6S-SXX-U6U-W7T NSFP L90D00HCLF8AH6CL

FURNAS ELECTRIC CO 3RW3465-0DC25 NSFP 3RW34650DC25

SIEMENS 6RA2413-2FS22 NSFP 6RA24132FS22

SEW EURODRIVE MDS60A0150-503-4-0T USPP MDS60A015050340T

YOKOGAWA DR1015B62 USPP DR1015B62

Siemens 6ES5 700-2LA12 6ES57002LA12

Siemens POWER SUPPLY 6ES5 951-7ND31 PS951 7/15A /BOX

SIEMENS 6ES5-458-7LB11/6ES5458-7LB11 OUTPUT MODULE XLNT

Siemens 6ES5 421-8MA12 6ES54218MA12 INPUT MODULE S5 \

Siemens S5 PLC 6ES5 441-8MA11 Output E-Stand 5

Siemens CPU 312C 6ES7 312-5BD01-0AB0 CPU312C

Shark 200 Panel Mounted Power Meter and Data Logger

Square D 8030 RIM-125

SIEMENS 6DD2920-0AC0 LIGHT INTERFACE MODULE IN BOX

WE SHIP SAME F/S VIC3-4FXS/DID CISCO 4 Port Voice Interface Card

SIEMENS 6GK1-502-3CB10 INTERFACE MODULE 6GK15023CB10

Siemens TP177A 6AV6642-0AA11-0AX1 Protective Film

Schneider Modicon SEALED AS-BADU-204/ASBADU204 Analog Input OFFERS ACCEPTED

Schneider Modicon ASBDEP218 AS-BDEP-218Compact b

Schneider Modicon AS-B805-016 800 I/O MODULE

Schneider Modicon Modbus Adaptor Model AS-J375-010

Schneider Modicon AS-M380-006 OUT OF BOX

Schneider Modicon AS-B875-102 Input Module Analog HI Speed 8POINT 800 SERIES

SchneiderElectricXBTGT1135MagelisAdvancedPanel

Siemens 6ES7 331-7NF00-0AB0 Simatic S7 Analog Input Module

SBE INC M68K10 USPP M68K10

Siemens HMI 6AV6 642-0BA01-1AX1 NIB 6AV66420BA011AX1

SIEMENS Sinumerik 6FX1820-0AX02 Module E Stand 06

SIEMENS 6GK1143-0AA01 COMMUNICATIONS MODULE

SIEMENS 6SN1130-1AA11-0GA0 6SN11301AA110GA0 VSA Module

SIEMENS 6SN1118-0DK21-0AA1 SIMODRIVE 611 DIGITAL CONTROL LOOP BLOCK

SIEMENS 6FC5203-0AB11-0AA2 OPERATOR INTERFACE OP-031 TFT COLOR 10.4"

ALLENBRADLEYPANELVIEW550CAT2711K5A10

ALLEN BRADLY VersaView 1700M OPERATOR INTERFACE DISPLAY 6186-M17ALTR SER. B

ABB DRIVE ACS800-U1-0120-5+P901 ACS800U101205

ADEPT Technology PCB MSC3 10300-46-625 46625

(7434) Reliance Battery Backup for Drive 803623-R NIB (7374)

INDRAMAT TDM1.2-100-300-W1/115 NSPP TDM12100300W1115

WESTINGHOUSE DS416-1200A-LSIG USPP DS4161200ALSIG

FANUC A06B-6059-H215 USPP A06B6059H215

ELDEC 5060044 USPP 5060044

RELIANCE ELECTRIC 803456-4T USPP 8034564T

NSK ML-YA13096E02AT15 NSFP MLYA13096E02AT15

NIOBRARA R&D CORP MEB-TCP-D USPP MEBTCPD

Siemens 6ES5 434-7LA11 6ES54347LA11

Siemens 6ES5-900-7FC11/6ES5900-7FC11 CPU MODULE XLNT

SIEMENS 6ES5-385-8MB11 6ES53858MB11

Siemens 6ES5 431-8MA11 Digital Input Module

Siemens S5 6ES5 350-3KA21 6ES53503KA21 Memory Module

SIEMENS 6SE7090-0XX84-0AD1 Card 6SE70900XX840AD1 old version in Box

Siemens 6ES7 332-5HF00-0AB0 -FS- 6ES73325HF000AB0

Siemens U-04B

Mitsubishi QJ71PB92D Q-Series PROFIBUS-DP Interface Module

WS-X6148A-GE-TX Cisco Classic Interface Module Expansion module 48 ports Switch

Siemens 6ES7 405-0KA01-0AA0 6ES7405-0KA01-0AA FreeShip

Siemens Profibus PCI Card 6GK1561-1AA00 NIB

Reliance 0-57002

Schneider Modicon MINT AS-B883-111 ASB883111

Schneider Modicon AS-B243-110 INPUT MODULE ANALOG

Schneider Modicon AS-P930-204 USPP ASP930204

Schneider Modicon AS-B828

Schneider Modicon AS-B570-001 Output Module w/Wire Arm B570 UVG

Modicon Modbus Plus T-Connector 990NAD23000

SIEMENS SIMATIC 6ES5 464-8MC11 ANALOG INPUT MODULE QUANTITY

Siemens 6ES5-400-7AA12 PLC

SIEMENS S7 TD200 IN BOX

SIEMENS 6DD1681-0EH1 SIMADYN D OPTICAL COUPLER MODULE

SIEMENS SINUMERIK 810 6FX1121-2BB02 6FX11212BB02

SIEMENS 6SN1-111-0AB00-0AA0 USPP 6SN11110AB000AA0

SIEMENS Simodrive 6FC5247-0AA00-0AA2 6FC52470AA000AA2

SIEMENS 6FC9-348-7HP00 NSFP 6FC93487HP00

Advantech EVOC PCL-812PG REV:1.0 Card

Allen-Bradley 1771-OFE2 PLC5 Analog Output Module Ser.B

ABB ACS60100205000C1500000 ACS 600 Series Drive 61301411

AD9644, ADC, SPI, EVALUATION BOARD, AD9644 155KITZ 2096106

6ES7470-1AB00-0AA0 Brand , Factory Sealed,

900' Wesleyan Triplex Aluminum Cable Wire URD 350MCM 350-350-4/0 600Voltage

SQUARE D MHL3670035DC2351 USPP MHL3670035DC2351

CONTROL TECHNIQUES 9500-8607 USPP 95008607

BAYSIDE PG115-150-041 USPP PG115150041

MOORE PRODUCTS 39VIMCCN NSFP 39VIMCCN

MARPOSS 3405073000 NSFP 3405073000

EUROTHERM CONTROLS TC2001/02/150A/380V/00/4-20MA/NONE/SC/V2/PLU// NSFP TC2001021

Siemens 6ES5 135-3UA11 6ES51353UA11

Siemens 6ES5-465-4UA12 NSFP 6ES54654UA12

SIEMENS 6ES5 SERIES 6ES5-465-3AA13 PLC MODULE

SIEMENS S5 6ES5456-4UB11 6ES54564UB11

Siemens 115 CPU 944B 6ES5 944-7UB11 E Stand 09. Plus 6ES5 816-1BB11

SIEMENS 6ES7332-5HB00-0AB0 6ES7 332-5HB00-0AB0 FreeShip

Siemens SITOP 6EP1961-3BA20

Siemens 6ES5318-8MB12

iDatab ADS-HRN-CH4 T Harness Interface Module

YOKOGAWA F3RZ81-ON RS232 INTERFACE MODULE

Siemens 6ES5-460-7LA12 6ES5460-7LA12 ANALOG MODULE

Siemens MP270 6AV6542-0AH10-0AX0 Membrane Keypad

Omron NT20M-DT121-V1

Schneider Modicon AS-BDAP 210 Discrete Output Module

Schneider Modicon AS-506P-F16 NSFP AS506PF16

Schneider Modicon AS-J892-001

Schneider Modicon AS-521P-008 CNC Memory Board (AIND/UGC)

Schneider Modicon Electronics AS-W808-002 Cable Assembly Remote I/O W808-002

Schneider Modicon -AS-BDAP-216N

SIEMENS/TI 505-4232 INPUT MODULE 110VAC 32 POINT XLNT

Schneider Twido PLC TWDLCAA40DRF NIB

Siemens Sinumerik Operator Control Panel 6FC3808-3EF21

SIEMENS 505-4516 OUTPUT MODULE 5054516

SIEMENS Sinumerik 810 CNC Control Commissioning Manual

COMMUNICATION ECM 8E0035616A

SIEMENS SIMODRIVE 6SN1161-1AA00-0AA1 611-A/D BUS

SIEMENS SIMODRIVE 6SN1145-1AA01-0AA1SINUMETIK 840D NCU-BOX 6FC52476FC5357 6SN

Advantech Ethernet Module ADAM-4570 NIB

ALLEN-BRADLEY 6182-AGAZAC INDUSTRIAL COMPUTER 100 TO 240VAC 50/60HZ 0.4/0.25AMP

ABB 3HAB 2241-1/06B Robot Controller Main Computer CPU Board DSQC 325 S4C

ACCURAY 083883-004 GPU AE PC BOARD 083883004

A06B-6102-H226#H520 FANUC SERVO AMPLIFIER REMANUFACTURED

803W9674471 ALLEN BRADLEY

SIEMENS 6ES5-524-3UA13 FNFP 6ES55243UA13

ASEA BROWN BOVERI 3BHB003041R0101 NSFP 3BHB003041R0101

ALLEN BRADLEY 6182-AIBAZB USPP 6182AIBAZB

KUKA 69-350-075 USPP 69350075

GROUPE SCHNEIDER 8538-SEA13 USPP 8538SEA13

ACUITY IMAGING AR4000 NSPP AR4000

PREFERRED INSTRUMENT PCC-III-0000 NSPP PCCIII0000

Siemens 6ES5-340-3KB41 USPP 6ES53403KB41

SIEMENS 6ES5 441-4UA13 6ES54414UA13

SIEMENS S5 RS 6ES5 951-7LD12 7A/15A POWER SUPPLY

Siemens Memory Sub Module 6ES5 375-1LA61 22794

Siemens 6ES7 232-0HB00-0XA0 6ES7232-0HB00-0XA0 in Box, Seal opened

SIEMENS OP7 6AV3607-1JC20-0AX1 Membrane Keypad

Q63P Mitsubishi PLC Power Supply Module

Gould Modicon AS-J830-001 MODULE INTERFACE 884/800 ASCII

Toyota Tacoma Factory OEM Media Interface Module 861A1-0E040 CX-US02E2WX

Siemens 5613 communication card C79458-L8000-A77