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    • 1. 发明专利
    • Flow rate measuring instrument and flow rate measuring method for piping group
    • 流量测量仪和流量测量方法
    • JP2013221777A
    • 2013-10-28
    • JP2012091872
    • 2012-04-13
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • INOUE NAOKIYOSHIDA KAZUHIROOGUMO SHINYAICHIKAWA KENTA
    • G01F1/46G01F1/50
    • PROBLEM TO BE SOLVED: To provide a flow rate measuring instrument capable of stably measuring a flow rate of fluid flowing in a branch pipe (heat transfer pipe), a sudden contraction pipe or the like connected to a header part of a boiler or the like, and capable of sharply reducing load of measurement preparation such as installation.SOLUTION: A flow rate measuring instrument 1 for measuring a flow rate of fluid 11 flowing in a pipe 10 includes an orifice 21 capable of rectifying the fluid by a flow contraction effect up to a re-attachment distance on the upstream side and a flow rate measurement part 4 on the downstream side. The flow rate measurement part 4 is installed on a position where the flow rate of the rectified fluid 11 separated from the orifice 21 by a distance L=Lr+Ld or more obtained by totalizing a re-attachment distance Lr and a rectification distance Ld can be measured.
    • 要解决的问题:提供一种流量测量仪器,其能够稳定地测量连接到锅炉等的头部的分支管(传热管),突然收缩管等中流动的流体的流量 并且能够大幅度地降低诸如安装的测量准备的负担。解决方案:用于测量在管道10中流动的流体11的流量的流量测量仪器1包括能够通过流动收缩效应对流体进行整流的孔口21 上游侧的重新连接距离和下游侧的流量测定部4。 流量测量部件4安装在从孔21隔开距离L = Lr + Ld或通过累加再附着距离Lr和整流距离Ld获得的距离L 1以上的整流液体11的流量的位置 被测量。