特点1.能准确计量管道中过热蒸汽和饱和蒸汽的流量;2.流量测量范围宽,每台流量设计设有3种不同口径的孔板,可通过更换孔板扩大和缩小流量范围,设有压力补偿调节机构,在蒸汽压力变动时能保证准确计量;3.可抗拒突然流过流量上限200%的蒸汽流量,其测量准确性不受影响;4.直接读数,不用换算(指DN100、DN80、DN50),在低温环境工作,其性能不变;5.结构严谨、先进、寿命长,使用维护方便,各项性能指标均达到国内同类产品的先进水平 主要技术性能指标1.仪表型号:LFX 2.5 LFX 05 LFX 08 LFX 102.公称通径:DN25 DN50 DN80 DN1003.允许压力:0.05~1.0 MPa# 0.05~1.6MPa;4.流量上限:27~266kg/h# 133~835kg/h;5.流量范围:流量上限的30% 150%(严禁超过流量上限的150%);常用范围为流量上限的50% 100%;6.允许最高温度:220℃# 240℃;7.精度等级:2.5级(试验孔板),4级(更换孔板或压力调整后);8.流量上限:(见表1)注:标有#的数据均为LFX 2.5流量计的数据。表1蒸汽表压各种口径各号孔板流量计的流量上限LFX 2.5LFX 05LFX 08LFX 10MPa1231231231230.0510553276602651331325660265265013256600.112060307503001501500750300300015007500.214572369153661831830915366366018309150.316583411050420210210010504204200210010500.418392461165466233233011654664660233011650.5200100501270508254254012705085080254012700.6215107541365547273273013655475470273013650.7229115571450576290290014505765760290014500.8242121611540615315315015406156150315015400.9255127641620648324324016206486480324016201.0266133671695677339339016956776770339016951.1 1760706353352017607067060352517601.2 1835733367367018357337330367013851.3 1900760380380019007607600380019001.4 1965785393393019657857850393019651.5 2015810403403020158108100403020151.6 209083541841752090835835041752090