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目录1、简介…………………………………………………………………………………12、特点…………………………………………………………………………………13、工作原理………………………………………………………………………………14、技术参数表……………………………………………………………………………25、流量表………………………………………………………………………………36、口径选择………………………………………………………………………………47、外形尺寸……………………………………………………………………………58、仪表安装……………………………………………………………………………79、转换器参数…………………………………………………………………………910、转换器设定操作说明……………………………………………………………1111、型号说明…………………………………………………………………………14涡街流量计涡街流量计11.简介1.简介Fischer&Porter公司拥有世界上昀先进的涡街流量计，可用来对各种单相、均匀的液体、气体、高/低温过热蒸汽和饱和蒸汽进行流量计量、检测和控制，广泛应用于石油、化工、冶金、电力、造纸、制药、食品等工业部门和市政建设、环保工程等行业。2.特点2.特点●抗震型：Fischer&Porter公司的涡街流量计采用4片压电晶体进行测量，两片用来检测流体的流量信号，另两片用来检测管道的振动信号，4片压电晶体采用并联方式，将检测流量信号的压电晶体所检测到的振动信号抵消，这样就从根本上消除了外界振动对检测流量的影响。●温压补偿：接收温度传感器PT1000信号和压力传感器信号，进行温压补偿，输出4-20mA电流信号或RS485差分信号，显示补偿后的流体流量。●防爆设计：本安型ExiaIICT6隔爆型ExdIICT6●智能型：现场可以通过三个手动键或手操器修改仪表参数和仪表量程。●输出方式：4-20mA电流信号输出／脉冲信号和ModbusRS485差分信号。VT8010VT8030VR8010VR8030●显示方式：LCD多功能显示屏可以显示瞬时流量、累积流量、频率、压力、温度、密度、电流、百分比等信息。●通讯方式：HART–Protocol通讯协议ModbusRS485接口。3．工作原理3．工作原理在流体中插入一个柱状物，从柱状物两侧交替地发生有规律的漩涡（参看上图），这种漩涡列被称为卡门涡街。卡门涡街的发生频率与流体的流速成正比，因此通过压电传感器检测出涡街频率，再通过转换器便可以计算出流体的流量。涡街的发生频率与流体的流速及柱状物宽度有关，可用下式表示:f=Stv/d式中，f=卡门涡街的发生频率St=斯特罗哈数v=流速d=柱状物宽度St斯特罗哈数是涡街流量计的重要系数，它与流体的雷诺数有关。（看公式和图表）漩涡频率和被测介质的流速有关，和被测介质的密度、粘度无关。vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff四四四四片压四片四片四片压四片压四片压四片压四片压四片压四片压四片压四片压四片压片压四片压压片压压压压电传电传电传感电传电传电传感电传感电传电传传电传感电传电传感电传感电传感电传感电传感电传感电传感电传电传感传电传感传电传感电传感电传感电传感传电传感电电传感传电传传传电传传感器器器器器器器器器器器器器器器器LinearFlowRangeReynoldsNo.ReStrouhalNo.St.4．技术参数表4．技术参数表2型号VT8000VR8000液体1.0%、0.75%1.0%、0.75%精度气体/蒸汽1.0%1.0%重复率≤±0.3%(测量值)≤±0.3%(测量值)允许被测介质粘度≤7.5mPas≤7.5mPas量程比1:10-1:201:10-1:20法兰连接DN15-DN600DN15-DN600夹持连接DN15-DN300DN15-DN300标准型标准≤16MPa/900lb≤16MPa/900lb压力范围特殊根据用户要求根据用户要求传感器材质0Cr18Ni9/316/316L/Hast.C/Ti根据用户要求0Cr18Ni9/316/316L/Hast.C/Ti根据用户要求供电电源12-28VDC/电池供电(3.6VDC锂子池)12-28VDC/电池供电(3.6VDC锂子池)电气接口M20x1.5、1/2〃NPT、其它M20x1.5、1/2〃NPT、其它显示液晶显示液晶显示远程通信本安型ExiaⅡCT6ExiaⅡCT6防爆等级隔爆型ExdⅡCT6ExdⅡCT6标准型IP67传感器IP67/转换器IP67防护等级潜水型-传感器IP68/转换器IP67环境温度-40oC-+85oC-40oC-+85oC材质铸铝铸铝转换器功耗≤0.65W≤0.65WHART-Protocol通讯协议ModbusRS485接口HART-Protocol通讯协议ModbusRS485接口高温型-40℃--350℃-40℃--350℃介质温度-40℃--250℃-40℃--250℃5．流量表5．流量表35.1流量表（液体）5.2流量表（气体/过热蒸汽）SizeDNInchQvmin[m3/h]Qvmax[m3/h]Frequency[Hz]atQvmax151/2〞0.55490203/4〞18330251〞1.214296321-1/4〞1.820200401-1/2〞230130502〞340106652-1/2〞66072803〞12130841004〞20200661255〞30300511506〞45450442008〞909003725010〞120120025.330012〞18018002235014〞400320024.640016〞500400020.650020〞600500013.260024〞800700010.7参比介质：水（20℃，1.103bar,ρ0=998kg/m3）SizeDNInchQvmin[m3/h]Qvmax[m3/h]Frequency[Hz]atQvmax151/2〞6181759203/4〞8401649251〞8501056321-1/4〞141001007401-1/2〞182001031502〞30350924652-1/2〞50560673803〞707504831004〞10011003631255〞15017002871506〞20023002252008〞4004500185.525010〞6006500137.230012〞100011000134.435014〞15001300092.340016〞18001500074.250020〞2600210006660024〞33002900044.3参比介质：空气（20℃，1.103bar,ρ0=1.2kg/m3）P[bara]0.511.52345678910121525303540DN/inch15min1/2max4.25.45.910.67.115.58.120.39.929.711.338.912.548.113.657.114.766.115.674.916.583.917.492.719110.315136.821.122529.727032.131534.336020min3/4max5126.723.68.134.49.345.211.36612.986.414.3106.815.6126.816.8146.817.9166.418.9186.419.920621.7245.224.13043150033.960036.770039.280025min1max6154.829.510.24311.656.514.182.516.110817.9133.519.5158.521183.522.320823.623324.9257.527.1306.530.238038.762542.475045.887549100032min1-1/4max8.43011.85914.28616.311319.716522.5216252672731729367314163346635515386134276054125059150064175069200040min1-1/2max10.86015.111818.21722122625.33302943232.253435.163437.873440.283242.593244.8103048.8122654.3152069.7250076.4300082.5350088400050min2max1810525.21206.530.530135395.542.2577.548.375653.7934.558.5111063128567145670.9163174.6180381.3214690.52660116.24375127.35250137.56125147700065min2-1/2max3016842330.451481.658632.8709248012108914959717751052055112233011826101242884135343315142561947000212840022998002451120080min3max4222559442.57164582847.5991237.51131620125200313623781472753156312016534951743863190459821157002719375297112503211312534315000100min4min60330846491029461161243141181516123761792937195348721040372234576236512624956652716743302836038713750424165004581925049022000125min5max9051012610031521462175192121128052413672268453929253893156239335707235479223738755406104214531292058121250636255006872975073534000150min6max1206901681357203197823325992813795322496835861413907291420844144795684731071849711845542140996031748077528750848345009174025098046000200min8man240135033626554063870466508556374256449720716120157801426584016515894187209452097099523175108427585120734200154956250169767500183378750196090000250min10max36019505053835609559069873458441072596614