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首页> 外文会议>2001 International gas research conference >INFLUENCE OF FLOW PULSATIONS ON TURBINE FLOW METERS
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INFLUENCE OF FLOW PULSATIONS ON TURBINE FLOW METERS

机译：脉动对涡轮流量计的影响

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Flow pulsations affect the accuracy of turbine flow meters. Besides affecting running turbine flow meters also spurious counting signals can occur in gas metering runs which are placed in a standby-mode.rnWe report about our investigations of these spurious gas counting signals. This counting occurs in standby metering runs in which the flow pulsation levels exceed certain critical levels.rnA few of these cases are described on a phenomenological basis. The plausible origin of the spurious counts is discussed. In all of these cases the spurious counting is related to the intensity of existing flow pulsations in the neighborhood of the turbine meters. The origin turns out to be either related to flow induced pulsations, specific acoustic resonances and/or pulsations generated by pressure reducers, such as valves or gas expansion machines.rnThe second part describes experiments to determine the sensitivity of turbine meters with respect to frequency and amplitude of the pulsations.
机译：流量脉动会影响涡轮流量计的精度。除了影响正在运行的涡轮流量计之外，在待机状态下的燃气计量运行中还会出现杂散计数信号。我们报告了对这些杂散气体计数信号的调查。这种计数在备用计量运行中进行，在备用计量运行中，流量脉动水平超过某些临界水平。在现象学基础上描述了其中的几种情况。讨论了伪计数的合理起源。在所有这些情况下，虚假计数与涡轮流量计附近的现有流量脉动的强度有关。起源可能与流量引起的脉动，特定的声共振和/或由减压器（如阀门或气体膨胀机）产生的脉动有关。第二部分介绍了确定涡轮流量计对频率和频率的灵敏度的实验。脉动幅度。

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