亿鼎变换联锁及复杂调节说明详设2012.11.12陈改发出
EPIC 多用途封闭接触器 150A以上电源切换说明书
Multi Purpose EPIC ® Sealed Contactor -150+ Amp Power SwitchingRoHS Compliant , all date codesPatent PendingChassis level UL508 sized power terminals – No need for speciallyrouted power cables, special bus bars, or special lugsRugged EPIC ® Seal rated to 175°C - Same technology used foradvanced aerospace programs that reduces risk of fire or meltdown in over current conditionsHermetically Sealed - Designed to meet: UL1604 for Class I & II, Div 2 and Class III for use in hazardous locations, IP67 for temporary water immersion for 30 min, SAE J1171 - external ignition protection, and ISO8846 for protection against ignition around flammable gassesElectronics-free high efficiency coil – No EMI emissions or cross-talk on your system control powerBuilt-in coil suppression for DC coils - Saves engineering time and parts cost to add external coil suppressionStainless steel hardware and mounting inserts, for years of corrosion free serviceUL508 ambient compliant to 75°C but can operate continuously at 85°C with a higher terminal temperature rise of 60°C. Can also operate up to 125°C in special cases -contact GIGAVAC for details.Not position sensitive – can be mounted in any position for ease of installationElectrical life rating is based on resistive load with TBD maximum inductance in circuit. Because your application may be different, we suggest you test the contactor in your circuit to verify life is as required.End of life is defined as when the dielectric, insulation resistance or contact resistance exceeds the specifications listed.If your application requires a higher current rating, you may want to consider the GIGAVAC GX12 EPIC ® sealed contactor .Make & Break Resistive Currentwith 1/0 cable and 50° terminal temp riseContact Voltages & Life Cycle RatingsDC or 50/60 Hz AC24 V 48 V 72 V 120 V 350 V 750 V150A - (75° C Ambient) 1/150,000100,00040,00020,0007,500 1,200 125A - (75° C Ambient) 1/180,000120,00048,00024,0009,0001,440 100A - (75° C Ambient) 1/225,000150,00060,00030,00011,2501,800 75A - (75° C Ambient) 1/300,000200,00080,00040,00015,0002,400 50A - (75° C Ambient) 1/435,000290,000116,00058,00021,7503,480 30A - (75° C Ambient) 1/750,000500,000200,000100,00037,5006,000 20A - (75° C Ambient) 1/900,000600,000240,000120,00045,0007,200 225A - (50° C Ambient) 2/127,50085,00034,00017,0006,3751,020 Max Break A, 2 cycles (75° C Ambient) 1/2,500A 2,000A 1,500A 1,000A 900A 600A Max Make, 10 cycles (75° C Ambient) 1/1,400A1,100A800A600A500A350A1/ Assumes UL508 ratings with 1/0 cables, UL508 max ambient temperature of 75°C as shown, and max. UL508 terminaltemperature rise of 50°C.At 85°C ambient, contactor can also meet all of its 75°C specifications but the terminal temperature can rise can be up to 60°C, which is higher than the 50°C rise allowed by UL508 and can be higher than some cable insulation ratings.2/ Assumes UL508 ratings with 1/0 cables, at a lower 50°C UL508 ambient temperature, and max. UL508 terminal temperature rise of 50°C.If your application requires a higher current rating, you may want to consider the GIGAVAC GX12 EPIC ® sealed contactor.1/ Assumes UL508 ratings with 1/0 cables, ambient maximum UL 508 temperature of 75°C, and maximum UL508terminal temperature rise of 50°C. Contactor can also carry the higher current as shown for 50°C ambient, and meet all of the UL508 temperature rise requirements.At 85°C ambient, contactor can also meet all of its 75°C specifications but the terminal temperature can rise can be up to 60°C, which is higher than the 50°C rise allowed by UL508 and can be higher than some cable insulation ratings.The maximum terminal temperature rating of the contactor is 175°C, which means much higher currents than shown can be carried and switched. However, this temperature is much higher than most cable insulation ratings, which mean busbars must be used. Contact GIGAVAC for assistance for higher current applications using this contactor.2/ Rating consists of combined inrush + cranking current at the times specified, with 2 seconds off between cycles. This is higher current than is required for UL1107 for marine battery switches.75°C / 50°CCable size 1/1 / 0Continuous, UL508 Max 1/ 10 seconds (1 time) 100 Seconds (1 time) 300 Seconds (1 time)Amp Amp Amp Amp 150 / 225 375 / 560 240 / 360 200 / 300 Starter Carry – Inrush 250 ms (10 repeats 1/ 2/)Amp NA / 2,000 Starter Carry - Cranking 10 sec (10 repeats 1/ 2/)Amp NA / 500 Maximum terminal Temp, Continuous Deg C 175 Maximum terminal Temp, Intermittent Deg C 225Ratings are at worse case temperature extremes, except coil resistance and current are at 25ºC.1/ DC coils have built-in coil suppression. The use of additional external coil suppression can slow the release time andinvalidate the life cycle ratings, or can cause the contactor not to be able to interrupt the maximum current specified. If lower coil back EMF is required, please contact GIGAVAC for assistance.Nominal Volts12Vdc 24Vdc 48Vdc 72Vdc 120Vdc 120Vac, 50/60Hz 240Vac, 50/60HzCoil P/N Designation B C F H J K L Max Volts14285684140140280 Pick-up, Volts, Max 7.51528467272144 Hold, Volts, Min491828464692 Drop-Out, Volts, Min0.50.5 1.8 2.7 4.5 4.59 Coil Resistance @ 25ºC (Ohms ±10%)17853358502125N/A N/A Coil Current, mA, Max at nominal Voltage7002801509056TBD TBD Coil Back EMF (volts) - Built in suppression 1/5555100150288N/AN/A1/ Auxillary contact rating - 2A, 24Vdc Resistive load, 100,000 cycles.2/50 Mohms after life.3/ Contactor can operate up to 125°C in special cases -contact GIGAVAC for details.SpecificationsUnits Specifications Contact Arrangement (main)Form X SPST-NO Contact Arrangement (Auxilary) 1/Form C SPDT Mechanical Lifecycles 1 millionContact ResistanceMax @ rated carry current Typical @ rated carry current mohms mohms .4 .15 to .3Operate time, 25˚CClose (includes bounce) Max Close (includes bounce) Typical Bounce on close, MaxRelease time (includes arc time at max. break current) ms ms ms ms 20 13 7 12 Insulation ResistanceMohms 100 2/ Dielectric at sea level (leakage < 1mA)VRMS 2,500 ShockG’s peak 20 Vibration, Sinusoidal (500-2000 Hz peak)G’s 15Operating ambient Temp Range ˚C -55 to +85 3/ Storage ambient Temp Range ˚C -70 to +175 Weight, TypicalKg (Lb)0.50/(1.1)GX11C ACoil VoltageB = 12 Vdc, internal coil suppressionC = 24 Vdc, internal coil suppression F = 48 Vdc, internal coil suppression H = 72 Vdc, internal coil suppression J = 120 Vdc, internal coil suppression K = 115 VAC, 50/60 Hz L = 240 VAC, 50/60HzCoil TerminationA = Flying leads, 38 cm (15 in)B = Flying leads, 61 cm (24 in)C = Flying leads, 122 cm (48 in)Auxiliary Contact (same length as coil wire selection) Blank = None A = SPDTThe polarity of the power terminals was previously shown reverse from what is correct and what is now indicated. The polarity is important only for switching the "Maximum Break, 2 cycles" when the voltage is over100 Vdc.Application Information:1. WARNING - When using more than one lug on a power terminal, make sure the primary power is closest to thecontactor busbar, with the lower current lug on top, then the washer, then the lock washer, then the nut. Improper order can cause severe over-heating resulting in the possible melting of the connecting cable insulation.2. EPIC ® sealing technology3. Relay Schematics and FormsPower contactsAuxiliary contacts (optional)05/12/08GIGAVAC® - P.O. Box 4428 - Santa Barbara, CA 93140-4428 - ph +(805) 684-8401 - +(805) 755-2000fx +(805) 684-8402 - **************** - - ©Copyright 2003-2008 GIGAVAC, LLC.。
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亿鼎净化装置变换单元自控联锁及复杂调节系统说明（详细工程设计版次A）一、联锁1、1#变换炉床层温度联锁(US0001)TRSAHH-0005A~F→US0001温度测量点在1#变换炉（R-001）设备上，共有六个测温点，当任何两个测温点温度达到高点联锁值（495℃）时，US0001动作，本工序联锁停车。
2、粗合成气气液分离器高低液面联锁(US-0002)LICSAHH/LL-0001→US-0002当液面达到高点联锁值时，在管道上的调节阀(LV-0001) 开启；当液面达到低点联锁值时，在管道上的调节阀(LV-0001) 关闭。
当液面回到正常值正负100mm时，联锁解除，此调节阀(21LV-0001)的阀位复位。
3、中压蒸汽发生器液面联锁(US-0003/ US-0001)LISAHH-0006→US-0003 , LISALL-0005/0006/0007→US-0001中压蒸汽发生器（E003）设备上设有3个液面计，当LI-0006液面达到高点联锁值时，US-0003动作，调节阀(LV-0005)关闭；当液面回到正常液位时，联锁解除，此调节阀(LV-0005)的阀位复位。
低点联锁设置3取2，当LI-0005/0006/0007液面的其中2个达到低点联锁值时，US-0001动作，本工序联锁停车。
4、1#低低压蒸汽发生器液面联锁(US-0004/ US-0001)LISAHH-0003→US-0004 , LISALL-0002/0003/0004→US-00011#低低压蒸汽发生器（E006）设备上设有3个液面计，当LI-0003液面达到高点联锁值时，US-0004动作，调节阀(LV-0002)关闭；当液面回到正常液位时，联锁解除，此调节阀(LV-0002))的阀位复位。
低点联锁设置3取2，当LI-0002/0003/0004液面的其中2个达到低点联锁值时，US-0001动作，本工序联锁停车。
5、2#低低压蒸汽发生器液面联锁(US-0008/ US-0001)LISAHH-0010→US-0008 , LISALL-0009/0010/0011→US-00012#低低压蒸汽发生器（E009）设备上设有3个液面计，当LI-0010液面达到高点联锁值时，US-0008动作，调节阀(LV-0009)关闭；当液面回到正常液位时，联锁解除，此调节阀(LV-0009)的阀位复位。
低点联锁设置3取2，当LISALL-0009/0010/0011液面的其中2个达到低点联锁值时，US-0001动作，本工序联锁停车。
6、变换气第二分离器液面联锁(US-0005)LICSALL-0012→US-0005当液面降到液位低联锁值时，在管道上的调节阀(LV-0012)关闭；同时运行的高温变换凝液泵（P-001A或B）联锁停泵。
当液面回到正常值负500mm 时，高温变换凝液泵（P-001A或B）启动，运行指示灯显示的同时，（设延时5秒）调节阀(LV-0012) 开启，阀位也应回到正常阀位。
7、高温变换凝液泵（P-001A或B）出口低压力联锁(US-0006)21PISALL-0012→US-0006当运行的高温变换凝液泵（P-001A或B）的出口压力降到低联锁值时，备用泵联锁启泵，当泵出口压力升到正常值时，运行的高温变换凝液泵（P-001A 或B）联锁停泵。
8、变换气第三分离器低液面联锁(US-0007)LICSALL-0013→US-0007当液面降到液位低联锁值时，在管道上的调节阀(LV-0013)关闭；当液面回到正常值负100mm时，联锁解除，调节阀(LV-0013) 的阀位复位。
9、变换气第一分离器低液面联锁(US-0015)LICSALL-0020→US-0015当液面降到液位低联锁值时，在管道上的调节阀(LV-0020)关闭；当液面回到正常值负100mm时，联锁解除，调节阀(LV-0020) 的阀位复位。
10、非变换气第一分离器液面联锁(US-0009)LICSALL-0014→US-0009当液面降到液位低联锁值时，在管道上的调节阀(LV-0014)关闭；当液面回到正常值负200mm时时，联锁解除，调节阀(LV-0014)的阀位复位。
11、非变换气第二分离器液面联锁(US-0010)LICSALL-0015→US-00010当液面降到液位低联锁值时，在管道上的调节阀(LV-0015)关闭；当液面回到正常值时负200mm时时，联锁解除，调节阀(LV-0015) 的阀位复位。
12、非变换气第三分离器液面联锁(US-0011)LICSALL-0016→US-00011当液面降到液位低联锁值时，在管道上的调节阀(LV-0016)关闭；当液面回到正常值负100mm时，联锁解除，时，调节阀(LV-0016) 的阀位复位。
13、凝液汽提塔塔釜低液位联锁(US-0012)LICSALL -0017→US-0012当凝液汽提塔塔釜液面降到LICSALL -0017低联锁值时，在管道上的调节阀(LV-0017)关闭；同时运行的变换净化凝液泵（P-002A或B）联锁停泵。
当液面回到正常值负500mm时，变换净化凝液泵（P-002A或B）启动，运行指示灯显示的同时，（设延时5秒）调节阀(LV-0017) 开启，阀位也应回到正常阀位。
14、本单元的机泵P-001A/B、P-002A/B均为互为备用泵关系，主泵因故障停止运行时，要求备用泵能自启动。
15、本工序联锁停车信号US-0001动作时，本工序各阀动作顺序如下：以下阀门同时关闭：HV-0001(粗煤气进)、FV-0014（中压过热蒸汽配气）、TV-0029（锅炉水配气调温）TV-0009（锅炉水配气调温）、PV-0018（中压蒸汽发生器出口）、TV-0014（锅炉水配气调温）、酸性气体脱除工序入口切断阀、PV-0019（气化来中压饱和蒸汽）以下阀门同时开启：HV-0002（中压蒸汽发生器放空）调节阀。
气化单元的中压饱和蒸汽放空阀。
16、要求本工序设置一紧急停车按钮。
二、复杂调节系统1、粗合成气配汽控制（比值控制系统）粗合成气进1#变换炉的水/气比控制：主动量为粗合成气流量(FRC-0002)，从动量为（FIC-0013）。
通过主动量调节阀(FV-0002)控制进入1#变换炉的粗合成气流量；蒸汽流量（FIC-0013）与粗合成气流量(FRC-0002)的比值要求为比值控制器的输出值，作为界外来中压过热蒸汽流量（FIC-0014）的给定值。
一般情况下，粗合成气中的水/干气比值允许在一定范围内波动，也即比值器中水蒸汽/粗合成气的比值在允许范围内时，（FV-0014）处于关闭状态，当水蒸汽/粗合成气的比值低于允许范围的下限值时，中压过热蒸汽流量调节阀(FV-0014) 开启，调节水蒸汽/粗合成气的比值在允许范围内；当水蒸汽/粗合成气的比值超过允许范围的上限值时，则减小(FV-0002)的开度，调节水蒸汽/粗合成气的比值在允许范围内。
开工初期变换单元自产中压饱和蒸汽压力还未达到要求时，蒸汽流量（FIC-0013）来自界外来中压过热蒸汽流量（FIC-0014）（也可包括气化来中压饱和蒸汽）；当自产中压饱和蒸汽压力达到要求时，则蒸汽流量（FIC-0013）来自变换单元自产中压饱和蒸汽流量（FIQ-0010）（也可包括气化来中压饱和蒸汽），此时当水蒸汽/粗合成气的比值在允许范围内时，界外来中压过热蒸汽流量自动关闭。
此两股蒸汽之间在切换过程中应保持（FIC-0013）的蒸汽流量值不变，即比值控制器的输出值不变。
2、1#变换炉入口温度控制（串级控制系统）粗合成气配蒸汽后进入1#变换炉的温度控制：配蒸汽后的粗合成气温度（即1#变换炉入口温度）(TRC-0004)为主控变量，粗合成气加热器出口粗合成气温度(TIC-0002)为副变量。
主控变量(TRC-0004)有一设定值，主变量(TRC-0004)的输出值作为副变量(TIC-0002)的给定值，当温度高于设定值时，此时调节阀(TV-0002) 开启，调节粗合成气温度(TRC-0004) 到设定值。
当温度低于设定值时，则调节阀(TV-0002) 关小或关闭，调节粗合成气温度(TRC-0004) 到设定值。
确保配气后粗合成气温度满足入1#变换炉的要求。
3、中压废锅及低压废锅的液位调节（三冲量液位控制系统）：废锅的液位为主控变量，锅炉给水流量为副变量，出口蒸汽流量为前馈信号，采用三参数(废锅液位、出口蒸汽流量及入口给水流量)控制锅炉给水调节阀。
4、开工加热器氮气出口温度控制开工加热器氮气出口温度(TIC-0039)为主控变量，温度控制器TIC-0039起反馈作用；蒸汽出口压力(PIC-0025)有一设定值，蒸汽出口压力控制器(PIC-0025)起前馈作用。
用于克服由于蒸汽压力波动对主控变量的影响。
前馈和反馈控制作用相加，共同改变蒸汽量，使氮气出口温度维持在给定值上。
6、其余调节系统均简单调节系统，部分调节系统特殊说明如下：1)、2#变换炉入口温度控制：2#变换炉的温度控制：2#变换炉的入口温度(TRC-0009)有一设定值，当温度高于设定值时，则中压锅炉水调节阀(TV-0009)开启或开大，调节2#变换炉的入口温度(TRC-0009)到设定值。
当温度低于设定值时，则中压锅炉水调节阀(TV-0009) 关小或关闭，调节2#变换炉的入口温度(TRC-0009)到设定值。
确保2#变换炉的入口温度满足要求。
1)、3#变换炉入口温度控制：3#变换炉的温度控制：3#变换炉的入口温度(TRC-0014)有一设定值，当温度高于设定值时，则中压锅炉水调节阀(TV-0014)开启或开大，调节3#变换炉的入口温度(TRC-0014)到设定值。
当温度低于设定值时，则中压锅炉水调节阀(TV-0014) 关小或关闭，调节3#变换炉的入口温度(TRC-0014)到设定值。
确保3#变换炉的入口温度满足要求。
补充联锁说明：变换净化凝液泵（P-002A或B）出口低压力联锁(US-0013)PISALL-0042→US-0013当运行的变换净化凝液泵（P-002A或B）的出口压力降到低低联锁值时，备用泵联锁启泵，当泵出口压力升到正常值时，运行的泵（P-002A或B）联锁停泵。
2012.11.20。