Flowserve控制阀技术 压缩机防喘振阀工况.pptx
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Flowserve控制阀技术 压缩机防喘振阀工况.pptx
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Flowserve控制阀技术,压缩机防喘振阀工况,Flowserve北京分公司霍乾名,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,Topics,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,Flowserve的防喘振阀的经验和业绩防喘振阀的阀型选型阀门介绍噪音控制执行机构定位器,Anti-SurgeValveCustomers(partiallist),2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,中国市场部分业绩,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,InstalledBaseCompressorAnti-SurgeValves,2009PetroLogisticsPTAPlant(Houston)30”X42”X48”ANSI150,2-StageMega12”LinearStroke1.0sFullStrokeOpenModulatingPneumaticActuator,FlowserveBoostervalvesElliotEbaraCompressorLargestCompressorinTheGulfofMexico,orporation.,AllRightsReserved,Beluga,2012FlowserveC,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,InstalledBaseCompressorAnti-SurgeValves,BonnyIslandNLNGPlant(Train1,2&3)36”&42”300#ANSIT/T,1.5sFullStrokeModulatingPneumaticActuator,ParkerBoostervalvesDresserCompressor,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,ASVConfigurationExamples(partiallist),2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,Page,2012FlowserveCorporation.,AllRightsReservedThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,典型的防喘振阀门选型要求,失气开FailOpen快速动作Rapidstroketimes.电磁阀触发时,全开时间小于2SLessthan2secondtoopenonsolenoidtrip定位器控制下,阀门全开的动作时间,有的压缩机厂家要求也要快开,全开时间在0.53秒,有的不要求。
C.全开到全关时间,一般要求比较慢.开过程和关过程不对称用快排阀可能会引起控制过程的不稳定,所以一般采用Booster调解行程速度。
典型的防喘振阀门选型要求,3.阀门额定Cv值是最大喘振工况的1.82.2倍ValveCVtobe1.8x2.2xtheSurgeconditionflowrate,4.阀门的额定Cv值小于阻塞流工况下的计算Cv值ValveCVshouldbelessthantheStonewallflowrate,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,典型的防喘振阀门选型要求,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,线形流量特性Linearcharacteristic噪音控制NoiseAttenuation关闭等级ClassIVorVshutoff高压降和流速要求内件加硬HighPressureDropandVelocitiesrequireHardenedtrim阀门形式选择Globe?
Angle?
orrotaryvalves?
始终严格遵循客户的要求。
AlwaysRefertoCustomerSpecifications,防喘振阀阀体形式直通阀和角阀,直通阀是最常用的防喘振阀形式良好的控制品质丰富的降噪方式阀体重量重,对控制阀门的噪音、震动有先天的限制作用直通阀可以满足喘振控制线和喘振线SLL控制的不同要求,角阀形式适合用于大口径防喘振阀内部流道简单,降低流体对内件和阀体的冲击,从而降低震动和噪音。
可以采用小进大出的结构、文丘里出口结构等特点,控制阀门内、阀门出口等位置流速。
角式结构本身可以控制两个维度的震动。
具有和直通阀相同的降噪方式和控制品质,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,Flowserve产品简介,MarkOne特点:
单座阀芯结构;双阀杆导向;非固定阀座(自对中);重载型阀杆;维护简单、方便;零部件可互相替换。
2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,Flowserve产品简介,MarkOne阀芯、阀座:
2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,Flowserve产品简介,MarkOne,“HeavyDutyDouble,TopStemGuiding”高强度双阀杆导向,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,“笼式导向”1.GallingandStickingoftenoccur磨损、刮伤、粘扣经常发生,2.需要特殊的硬化处理,Flowserve产品简介,严酷工况阀门MegaStream用于降噪的特殊阀笼,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,钻孔技术可以多极降压(最高级数可达7级)可用于平衡内件和非平衡阀门内件。
可以使用于阀笼导向和阀杆结构流向必须是FlowUnder,Flow-Direction,Example:
PressureBalanced3-Stage,FlowserveMegaStream降噪内件,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,可压缩流体(气体),1)SmallpressuredropsBytakingonlysmallpressurelosses,thevelocityisreducedandtheoverallSPLwillbeminimized.2)SmalljetsMultiplesmallenergyjetsreducethetotalenergyproducedinthesystemandthusalsoassistsinreducingtheoverallSPL3)AcousticimpedanceNoisegeneratedatonepointtendstoradiateasitmovesdownstream.Butifitisrestrictedbyanotherstagedownstream,theSPLneedstoregeneratedalloveragain.ThusthestagesimpedetheSPLacousticallylikethemufflerinanautomobile.,多级降压,变流体为多股小股流体,MegaStream内件通过多种方式降低气体噪音分化流体能量,使A震c动o频us率ti转c移到对设备和Im管p道e系da统n无ce害的频率,区间降低阀门内部压降的大小使噪音频率转移到人耳防不止敏阀感门区内间部成震波小股流体可以通过引导使之不重叠。
每一级产生的噪音会在流过下一级时,继续被降低,MegaStream内件降噪原理,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,防喘振阀降噪,阀内降噪方式优点:
形式多样:
通过改变开孔大小、降压级数实现多丰富的降噪功能。
可以控制阀门内部阀芯处的气体流速,从而降低噪音伴随的震动现象。
工艺压降全部由阀门承担,可以保证阀门的控制性能不受降噪功能的影响。
缺点:
无法控制阀门出口流速。
2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,Flowserve产品简介,严酷工况阀门MegaStream使用1级阀笼,单级降压,小孔式结构;,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,Flowserve产品简介,严酷工况阀门MegaStream使用2级及多级降压阀笼各级间焊接在一起各级膨胀空间逐渐增加,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,Megastream应用实例,MegaStream,压缩机防喘振严酷工况ValtekMarkOneMegaStreamTrim降噪内件一级压降流开设计Example:
直通阀体16”ANSIClass600CarbonSteelStandardBonnetRaiseFaceEndConnectionsTrimNo.10.50Cv1780PressureBalancedU-CapBalancingSeal6”LinearStrokePTFEPacking,906,VALTEK16600122409WCB,84663,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,2012FlowserveCorporation.,AllRightsReserved,VALTEK12X16300122509A234,90,WMP91egaSt,压缩机防喘振严酷工况ValtekMarkOneMegaStreamTrimNoiseReductionTrimThree-StageFlowToOpenExample:
FabricatedAngleConfiguration12”X16”ANSIClass300Chrome-AlloyStandardBonnetRaiseFaceEndConnectionsTrimNo.9.0Cv902PressureBalanced4”LinearStrokePTFEPacking,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,角阀应用实例,Megastream应用实例,CF8M,VALTEK2900,846632808099064,压缩机防喘振严酷工况ValtekMarkOneMegaStreamTrim压力平衡型内件多级降压流开设计Example:
直通阀体2”ANSIClass900不锈钢延长阀盖RingJointEndConnectionsTrimNo.1.0Cv19.8两级降压内件3/4”直行程石墨填料,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,防喘振阀阀体形式-蝶阀,蝶阀影响防喘振控制系统在喘振控制线SCL附近控制性能蝶阀控制范围小,典型的可控范围为30%60%,对于防喘振阀,选型时,喘振控制点工况参数流量往往比实际控制中需要的流量大很多,因此,采用蝶阀选型的防喘振阀,实际操作存在阀门实际工况落入控制品质低的开度区间的风险,降低压缩机的经济性。
蝶阀降噪只能采用降噪板一种方式,A,R,c,B,SLL=喘振线SLLSCL=喘振控制线,2,qrFlowServe不推荐需要调节的防喘振阀采用蝶阀形式,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,规格可用口径1”到64”ANSIClass150-2500API6ANR:
0370/API6DNR:
0215API2000thru15000适用温度:
From-320Fto1472F(-196Cto800C)可用材质:
CarbonSteelForge&CastStainlessSteelForge&CastChrome-MolyDuplexStainlessSteel阀体形式:
侧装式球阀顶装式球阀终端连接方式:
RF/RTJ/Butt-Weld密封等级:
ClassV&VI可选软阀座密封方式,转行程阀门方案-ValbartTMCBV,带多级降压降噪内件的控制型球阀,典型应用工况:
Onamulti-StageCompressor,FirstStageAnti-SurgeValveonamediumsizecompressor.ApplicationRequiresmoderatepressureHi-Volume.MegaStream,2012FlowserveCorporation.,AllRightsReserved,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Page,Combinesthebenefitsofadvancedcontrolwiththesimplicityofaballvalve.,Z1&Z2TrimsarebasedontheprovenZ-TrimfromFlowservesNAFlineofcontrolvalves.Mosteffectivewithlowpressuredrops,theZ-trimsareidealchoiceforapplicationinvolvingmoderatecavitationandnoisebutdemandinghigherflowcapacity.TheZ-trimsarebi-directionalandselfcleaning.,Z1isatwoplatedesignforapplicationsinvolvingmildcavitationornoiseattenuation.,Z2isafourplatemulti-stagedesignintendedforhighercavitationcontrolandnoiseattenuation.,Z1,Z2,2012FlowserveCorporation.,AllRightsReserved,Page26Page,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Z1&Z2TRIMSCAVITATION&NOISECONTROL,Modifiedequal-percentagecharacteristiccurve.Throttlingrange:
10%to85%Maxefficiencythrottlingran,ge:
25%to70%,Z1&Z2TRIMSCAVITATION&NOISECONTROL,2012FlowserveCorporation.,AllRightsReserved,Page27Page,ThisdocumentandallinformationhereinisthepropertyofFlowserve,Itisconfidentialandissubjecttoreturnupondemand.,Modifie
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