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一、系统描述
　　醋酸乙烯是一种十分重要的工业原料,其市场非常广阔.它的生产过程主要分为两个大的过程: 合成和精馏.前者是发生化学反映生成醋酸乙烯的过程, 后者则是将生成的醋酸乙烯通过学,物理过程来进行提纯.其工艺流程图如下:
　2、本工艺的特点和难点
　　醋酸乙烯的生产是个塔体非常多的系统,调节回路众多,系统的关联性非常强,一个参数的控制的好坏直接影响到其他参数的控制的成败.一个系统的波动可能带垮整个系统.,因为其产品醋酸乙烯的浓度要求非常高,达到99.9%以上,因此对反应温度,以及流量等参数的控制要求非常平稳,合成反应器的中温要求170正负0.5度,醋酸蒸发器液位要求达到正负1%,还有乙炔的流量非常不稳定,可控性不太好.这些都对控制的精度提出了很高的要求.
　　3、工艺对控制系统的要求
　　a、实现各个单元操作的集中监控，包括：温度、压力、流量、液位等物理量的监测与控制。动态参数检测、控制必须准确、可靠。合成反应器的中温要求170正负0.5度,醋酸蒸发器液位要求达到正负1%,
　　b、必要的遥控措施,对突发事件如停电等，系统应采取相应的保护措施，确保在紧急情况下或需要的时候对一些关键的控制点(阀门、马达等)实施遥控。
　　c、配置必要的报警和联锁。
　　d、重要参数的记录和方便地查阅其实时趋势和历史趋势。
　　e、可随时监测有关单元的有关参数或重要设备的运行情况。
　　f、控制系统操作简单，参数设置、调整方便，便于操作，人性化的操作界面。
　　g、操作员站显示整个生产工艺流程，修改和打印各种有关参数。
　2、FB-2000NS系统硬件配置
　　本控制系统采用了三个监控站,和两个现场控制站.稳定性.两个现场控制站也采取了热备用冗余,任何一个出现了故障,自动切换到另外一个上正常运行.也增加了系统的可靠性和稳定性.所有的模拟量输出都采取了热备用,还有重要的显示参数也都采取了热备用..所有的模拟量都采取了和现场信号的光电隔离,所有的现场信号均通过了安全栅隔离. DCS的硬件配置如下: FB-2001NS -4块,FB-2005NS-3块,FB-2010NS 16块 ,FB-2020NS 28块, FB-2030NS 1块 ,FB-2040NS-4块 FB-SC20NS/R14块,FB-SC14NS/R-4块,FB-SCNS14-8块.FB-SC30NS1块. FB-SC42NS-4块.另外，报表打印机一台。

Schneider Modicon AS-B356-001 USPP ASB356001

Schneider Modicon AS-J475-000 NSFP ASJ475000

Schneider Modicon Controller AS-B890-101

Schneider Modicon AS-B801-000 NSFP ASB801000

Schneider Modicon -AS-500P-000

Schneider Modicon Output Module AS-B804-016 115 VAC WARRANTY

Siemens Simatic U-25N Input Module

SIEMENS 505-4216 INPUT MODULE 5054216

RELIANCE ELECTRIC 57C-433 NSFP 57C433

Siemens 6FC3251-1AC-Z Sinumerik 810-T Machine Operator Interface WOW

SIEMENS Sinumerik Power Supply 6EV 3054-0DC E Stand G

PHOENIX MCR-C-UI/UI-DCI COMMUNICATION INTERFACE MODULE

SIEMENS SERVO DRIVE 6SN1113-1AB01-OBA1

SIEMENS TAPE READER 6FC3984-1FC T40 F-NR NORTRA 15299 KDTK GN17862 USMT MILL CNC

SIEMENS 24VDC DMP COMPACT INPUT MODULE 6FC5111-0CA01-0AA0

AllenBradley1791-OB16/BBlockI/OOutputModule

Allen Bradley Solid State Timer Relay 700-RTC00000U1 WARRANTY

ABB MEM86-192K + 192KRM

ZINSCO 3034215HM 300 kVa 480 240 60HZ 3P transformer

(V7) 1 GENERAL ELECTRIC 16L0076WH3 CAPACITOR V7

MODICON 140-CPU-434-12 USPP 140CPU43412

ALLEN BRADLEY 1392-A040-RA-MC USPP 1392A040RAMC

GENERAL ELECTRIC DS3815PMMA1F1B USPP DS3815PMMA1F1B

FOXBORO 220S-2F6 USPP 220S2F6

SIEMENS 6ES7-647-2CE10-1CX1 NSFP 6ES76472CE101CX1

SCHRADER BELLOWS 008-4934 NSPP 0084934

WESTINGHOUSE A201K4CA-J1 USPP A201K4CAJ1

Siemens 6ES5 535-3MA12 6ES55353MA12

Siemens DIGITAL OUTPUT SIMATIC S5 6ES5-451-8MD11

SIEMENS 6ES5-454-7LA11 MODULE 6ES54547LA11

Siemens 6ES5 391-5AA13 Operating Control Panel 11207

Siemens S5 Memory SubModule 6ES5 372-0AA61 NIB

Siemens Controller RDE10.1 NIB

Shuttle X50V3 15.6" Atom D2700 GMA3650 DDR3-1600 Gigabit All-In-One System

Square D 8030 HOM-222

Ser.A

WE SHIP SAME WS-CAC-3000W CISCO CAT. 6500 SER. 3000W AC POWER SUPPLY

Siemens 6FC5510-0BA00-0AA0 + 6FC5511-0CA00-0AA0

Siemens TP177 6AV6 640-0CA11-0AX1 Touch Glass + Film

Schneider Modicon Square D AS42CM-T PowerLink Control Modules

Schneider Modicon AS-BFRQ-254C TESTED Freq IN ASBFRQ254C

Schneider Modicon AS-B802-008 USPP ASB802008

Schneider Modicon Groupe AS-BDEP-210 ASBDEP210

Schneider Modicon AS-J812-000

Schneider Modicon AS-B872-100 Analog Current Output Module H11 817

SchneiderTSXDSY16T2Premium24VDCSourceOutputModule

SIEMENS 6ES7-138-4FA04-0AB0 6ES71384FA040AB0 DIGITAL INPUT MODULE

Schneider 140CPU43412U 140 CPU 434 12U TSX Quantum Processor 2xMB 1xMB

Siemens HMI 6AV6 644-0BA01-2AX1 NIB 6AV66440BA012AX1

SIEMENS Sinumerik 6FX1126-8BA00 Control Card Interface

SIEMENS 6SE7090-0XX84-0AK0 CB1 MASTER DRIVE COMMUNICATION MODULE 63023

SIEMENS 6SN1-123-1AB00-0HA1 NSFP 6SN11231AB000HA1

SIEMENS 6SN1123-1AA00-0BA1 6SN11231AA000BA1 Simodrive

SIEMENS 6FC5-203-0AC00-1AA0/6FC5203-0AC00-1AA0 NIB

AllenBradleyPanelviewPlusLogicModule2711P-RP8D/A2711PRP8D

Allen-Bradley - 1794-IE8

ABB DCS 500,INDUSTRIETECHNIK AG DCS501-0350-51-21P2100

ADEPT TECHNOLOGY 1033000500 MODULE VJI ROBOT CONTROLLER

(6) MKS 1559A-27301 1559A02821LS1BV MASS FLOW CONTROLLER Range 20 SLM-200 SLM

INDRAMAT MDD-112D-N-030-N2M-130PB2 NSPP MDD112DN030N2M13

VICTOREEN 876A-1 USPP 876A1

FANUC A06B-6057-H203 USPP A06B6057H203

DYNAMATIC AF-162002-0240 USPP AF1620020240

RELIANCE ELECTRIC 57C-442 USPP 57C442

NEMATRON CORP ICC-7L6-HO1 USPP ICC7L6HO1

MODICON AS-B873-001 USPP ASB873001

Siemens 6ES5 420-3BA11 -- 6ES54203BA11

Siemens 6ES5-895-6SE03 NSFP 6ES58956SE03

SIEMENS 6ES5-377-0AB41 USPP 6ES53770AB41

Siemens 6ES5 422-8MA11 16Point Input Module WOW

Siemens S5 6ES5 095-8MA03 6ES50958MA03

Siemens 6SE7031-7HH84-1HJ0 in Box

SIEMENS VS710 Vision Sensor 6GF1710-2AA

Siemens 6SN1118-1NH01-0AA0

Mitel Fiber Interface Module FIM 9400-300-301-NA

WS-X6708-10G-3C Cisco 8-Port 10 Gigabit EN Module with DFC3C module 8 ports

Siemens 6ES7 332-5HD01-0AB0 6ES73325HD010AB0 NIB

SIEMENS PLC EEPROM 6ES5 374-0AB11 6ES53740AB11

Reliance 0-55304

Schneider Modicon AC POWER CONVERTER MODEL AS-P120-000

Schneider Modicon AS-B233-501 USPP ASB233501

Schneider Modicon AS-P890-300 NSPP ASP890300

Schneider Modicon AS-B810-008-11 Slot Good Condition

Schneider Modicon AS-B373 Analog Input Module WOW

MODICON OUTPUT MODULE B243-110 NICE

SIEMENS SIMATIC 6ES5434-4UA11 INPUT MODULE 32 POINT

Siemens 6ES7 133-0BH10-0XB0 193-0CA30-0XA0 ET200B S5/S7

Siemens Simatic 505-4616 24/110 VAC Output Module

SIEMENS 6DD1661-0AB0 COMMUNICATION MODULE

SIEMENS SINUMERIK 6FC3551-1AC-Z 6FX1151-1BD00 6FX1138-5BB04 6FX1128-1BA00 COMPLETE SET

SIEMENS 6SN1-111-0AA00-0BA1 USPP 6SN11110AA000BA1

SIEMENS Simodrive 6SC6100-0NA21

SIEMENS 802S 6FC5500-0AA00-1AA0 Membrane Keypad 6FC5 500-0AA00-1AA0

Advantech AIMB-742VE Main Board AIMB-742 Rev.A2 FreShip

ALLEN-BRADLEY 1771-OWNA CONTACT OUTPUT MODULE 1771-0WNA

ABB ACS550-U1-038A-4 ACS550U1038A4

ACTUS POWER pfb-10 supply pfb10 nikki denso

6ES7431-7KF00-0AB0 Brand , Factory Sealed,

900' 350 MCM 350MCM slippery rock Aluminum URD wire 600 volt cable

SQUARE D CF2308G10STM NSPP CF2308G10STM

CAMCO LS14X80 USPP LS14X80

BARBER COLMAN 80BE-00036-201-V-00 USPP 80BE00036201V00

MODICON MM-PMMP-000 USPP MMPMMP000

LANDIS & GYR 549-610 NSPP 549610

DELTAV 12P1442X032 NSFP 12P1442X032

Siemens 6ES5 095-8MD02 6ES50958MD02

Siemens 6ES5-464-8MB11 NSFP 6ES54648MB11

SIEMENS 6ES5 941-7UA12 CPU

SIEMENS S5 6ES5 IP243 243 1AA12 with 491 0LB11

Siemens Subrack CR2 6ES5 700-2LA11

Siemens 6ES7315-2EH14-0AB0 CPU in Box

SIEMENS SIMOREG 6RA23 C98043-A1663-L41-08

Siemens 6ES5256-3AA21

HP/Agilent 81533B Interface module for 8153A

XpressKIT Interface and Bypass Modules from Directed Electronics PLJX

SIEMENS 6ES5-240-1AA11 6ES52401AA11

Siemens MOBIC T8 6GK1611-0TA01-0AV0 Display Panel

Omron CJ1W-SRM21

Schneider Modicon AS-BDEP-210/ASBDEP210

Schneider Modicon AS-212P-220 NSPP AS212P220

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

Schneider Modicon AS-506P-F12 CNC Memory Board Rev C23 (UVG)

Schneider Modicon DEP218/AS-BDEP-218

Schneider Modicon /Schneider AS-B865-001/ASB865001 NICE

SIMATIC S7 Analog Input ModuleTC 6ES7 331-7PF10-0AB0

Schneider TSX08ED12R8 Telemecanique MODICON in Box

Siemens TB16 SC Terminal block 6ES7120-0AH00-0AA0

Siemens 505-4808 Output Module

SIEMENS Sinumerik 805 6FC4100-1AA00-Z Free Ship

Datascope Mindray Comm Module Communication Module 0998-00-0178-05 Passport 2 XG

SIEMENS Simodrive Drive 6SC6500 6SC6 500 6SC6

SIEMENS SIMODRIVE 6SN1145-1AA01-0AA2SINUMETIK 840D NCU-BOX 6FC52476FC5356 YC

Advantech AIMB-742VE Main Board

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

TEXAS INSTRUMENTS TI 500-5038 NETWORK INTERFACE MODULE

Siemens 2MB MMC 6ES7 953-8LL10-0AA0 6ES7953-8LL10-0AA0

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