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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。
ASEA BROWN BOVERI YT204001-FSI1 USPP YT204001FSI1
GE FANUC IC642MWP983 USPP IC642MWP983
SYMBOL TECHNOLOGIES VRC6940-00V651US USPP VRC694000V651US
WARNER ELECTRIC 5284-271-005 USPP 5284271005
Siemens 6ES5 135-3UA31 6ES51353UA31
Siemens 6ES5-135-3UA41 USPP 6ES51353UA41
SIEMENS 6ES5 464-8MF11 6ES54648MF11
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-B802-000 USPP ASB802000
Schneider Modicon PROGRAMMABLE CONTROLLER AS-584L-231 115V
Schneider Modicon AS-J810-000 Remote I/O Adapter
Schneider Modicon AS-B872-100 Analog Current Output ASB872100
SchneiderTSXDSY16T2PremiumSourceOutputModule
SIEMENS 6ES7-138-4FA04-0AB0 6ES71384FA040AB0 DIGITAL INPUT MODULE
Schneider 140DAI54000 Input Module
Siemens HMI 6AV6 647-0AB11-3AX0 NIB 6AV66470AB113AX0
SIEMENS Sinumerik 6FX1126-0BL01 Module
SIEMENS 6SE70900XX840FK0 SIMOVERT MDMC COMMUNICATIONS MODULE XLNT
SIEMENS 6SN1123-1AB00-0HA1 6SN1 123-1AB00-0HA1 SIMODRIVE 611 Power Module 8A
SIEMENS 6SN1123-1AA00-0BA1 Version A Simodrive LT-Modul Int 25A Card Module
SIEMENS 6FC5-203-0AC00-1AA0/6FC5203-0AC00-1AA0 NIB
AllenBradleyPanelviewPlusLogicModule2711P-T7C4D1/A2711PT7C4D1
Allen-Bradley - 1794-TB3S
ABB DCS 401 0610 2 REV A 610 AMPS 500HP DRIVE PN: 401.0610.2
Adept Technology 10310-70200 | 12mo | Free EU ping | Inc UK VAT
(6) KEITHLEY 7703 DIFFERENTIAL MODULE CARD
INDRAMAT MDD112D-N-030-N2M-130PB1 USPP MDD112DN030N2M11
VIBRO METER CMC16 USPP CMC16
FANUC A06B-6057-H007 USPP A06B6057H007
DYNAMATIC 15-580-10 USPP 1558010
RELIANCE ELECTRIC 57C-440A USPP 57C440A
NEMATRON CORP ICC-5000-PC1 USPP ICC5000PC1
MODICON AS-516P-002 USPP AS516P002
Siemens 6ES5 417-7AA21 6ES54177AA21
Siemens 6ES5-864-0MA04 NSFP 6ES58640MA04
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 505-4816 AC Output Module
SIEMENS Sinumerik 802S 802C Mechanical Keypad 2 month warranty
DEES COMMUNICATIONS 8 TRUNK MODEL 154 POWERFAIL BYPASS MODULE
SIEMENS Simodrive Drive 6SN1130-1AA11-0AA0 A
SIEMENS SIMODRIVE 6SN1145-1BA01-0AA1SINUMETIK 840D NCU-BOX 6FC52476FC5356 2BO
Advantech AIMB-740VE AIMB-740 B1
ALLEN-BRADLEY 700-P800A-1 RELAY 8NO 120VAC 10AMP XLNT
ABB 3BSE018168R1 AC 800M Processor PM851 K01 PM851K01
ACCURAY 064895-001 USPP 064895001
A06B-6079-H204 FANUC SERVO AMPLIFIER
800KW PORTABLE RESISTIVE LOADBANK TO MOST WORLDPORTS, 400-1000KW SIZES AVAILABLE
SIEMENS 6DD1-640-0AC0 USPP 6DD16400AC0
ALLEN BRADLEY SA3100-B025-AA-L6R USPP SA3100B025AAL6R
ALLEN BRADLEY 6181-ABBCBCZZZ USPP 6181ABBCBCZZZ
KNOLL AMERICA INC KTS-32-64-T5-A-KB USPP KTS3264T5AKB
GIDDINGS & LEWIS 401-34403-00 NSFP 4013440300
YOKOGAWA 230212-AHE-2 NSFP 230212AHE2
ORMEC SAC-D08L/I USPP SACD08LI
Siemens 6ES5-318-3UA11 USPP 6ES53183UA11
SIEMENS 6ES5 435-7LA11 6ES54357LA11
SIEMENS S5 6ES5 752-0AA12 6ES5752-0AA12 6ES57520AA12
Siemens Interface Module 6ES5 305-7LA11 38062
Siemens 6ES7 223-1PH20-0XA0 6ES7223-1PH20-0XA0
Siemens OP37 6AV3637-1ML00-0FX0 Membrane Keypad ping Worldwide
QUANTITY OF 10 NETERION X3100 10GBPS ETHERNET NETWORK ADAPTER
Genuine Cisco WIC-1ADSL 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-OV32
ABB NINT-67 MAIN CIRCUIT INTERFACE
ZTEC ZT530-PXI-01 400 MS/s 4MS PXI compatible Arbitrary Waveform Generator
(Y3-4) 1 JAMESBURY 815W-11-22HB-XZ WAFER-SPHERE VALVE Y3-4
MODICON AM-C986-003 USPP AMC986003
ALLEN BRADLEY 1392-B150-RL-MC-B-F2-D1-F4 USPP 1392B150RLMCBF2D
GENERAL ELECTRIC L90-C00-HCH-F8A-H6C-LXX-N6S-S6U-U6U-W7T NSFP L90C00HCHF8AH6CL
FURNAS ELECTRIC CO 14RF32BC USPP 14RF32BC
SIEMENS 6GK1610-0TA01 USPP 6GK16100TA01
SEW EURODRIVE MAS51A-030-503-00 NSFP MAS51A03050300
YOKOGAWA 437012/D2 USPP 437012D2
Siemens 6ES5 700-2LA12 6ES57002LA12
Siemens POWER SUPPLY 6ES5 951-7ND31 PS951 7/15A
SIEMENS 6ES5-458-7LB11 USPP 6ES54587LB11
Siemens 6ES5 421-8MA11/6ES5421-8MA11 INPUT MODULE XLNT
Siemens S5 PLC 6ES5 441-7LA11 Output 32 Way
Siemens CPU 312 6ES7 312-1AE13-0AB0 CPU312 NIB FreeShip
Sharp 9.4 Notebook LCD Module LM64P83L LM64P83L
Square D 8030 RIM-121
SIEMENS 6DD2920-0AC0 LIGHT INTERFACE MODULE
WE SHIP SAME GLC-SX-MM SX GE SFP LC CONNECTOR SX TRANSCEIVER CISCO GENUI
Siemens 6GK1502-3CB00 PROFIBUS OLM
Siemens TP177A 6AV6 642-0AA11-0AX1 Touchs Glass
Schneider Modicon SEALED AS-BDAU-208/ASBDAU208 Output Module OFFERS ACCEPTED
Schneider Modicon ASBDEP218 16 Pt 115VAC AS-BDEP-218
Schneider Modicon AS-B805-016 115 VAC INPUT MODULE ASSY 16PT
Schneider Modicon MEMORY MODULE PROM/PCB AS-506P-F16
Schneider Modicon AS-L206-011 Universal Tape Memory Loader ASL206011
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
