JP3960976B2 - 挿入式渦流量計 - Google Patents
挿入式渦流量計 Download PDFInfo
- Publication number
- JP3960976B2 JP3960976B2 JP2004035883A JP2004035883A JP3960976B2 JP 3960976 B2 JP3960976 B2 JP 3960976B2 JP 2004035883 A JP2004035883 A JP 2004035883A JP 2004035883 A JP2004035883 A JP 2004035883A JP 3960976 B2 JP3960976 B2 JP 3960976B2
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- pipe
- vortex
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- flow
- pressure receiving
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Description
第1の技術手段は、被測定流体が流れる測定管と、該測定管内に、上流側端面が流れに対向するように設けられた柱状の渦発生体と、前記測定管内の前記渦発生体の下流側に設けられた受圧板を有し前記渦発生体の前記上流側端面より生ずるカルマン渦に基づく変動圧力を該受圧板において検出する受圧センサと、を備え、前記測定管が配管と平行となるように該配管に挿入して、前記受圧センサにおける検出値から前記測定管内を流れる被測定流体の流速又は流量を算出し、前記配管内を流れる被測定流体の流速又は流量を算出する挿入式渦流量計であって、前記上流側端面の流れ方向位置が、前記測定管の上流側端面と一致していることを特徴としたものである。
Claims (6)
- 被測定流体が流れる測定管と、該測定管内に、上流側端面が流れに対向するように設けられた柱状の渦発生体と、前記測定管内の前記渦発生体の下流側に設けられた受圧板を有し前記渦発生体の前記上流側端面より生ずるカルマン渦に基づく変動圧力を該受圧板において検出する受圧センサと、を備え、前記測定管が配管と平行となるように該配管に挿入して、前記受圧センサにおける検出値から前記測定管内を流れる被測定流体の流速又は流量を算出し、前記配管内を流れる被測定流体の流速又は流量を算出する挿入式渦流量計であって、前記上流側端面の流れ方向位置が、前記測定管の上流側端面と一致していることを特徴とする挿入式渦流量計。
- 前記渦発生体の上流側端面から前記受圧板の上流側までの距離Bを、当該挿入式渦流量計における渦ピッチをaとして、B/aが0.45〜1.00とすることを特徴とする請求項1に記載の挿入式渦流量計。
- 前記測定管と前記渦発生体とは一体に形成されていることを特徴とする請求項1又は2に記載の挿入式渦流量計。
- 当該挿入式渦流量計の前記配管への取り付けは、ネジ込み又は食い込み継手によりなされることを特徴とする請求項1乃至3のいずれか1項に記載の挿入式渦流量計。
- 前記測定管は、その内壁断面形状が、その上流側端面から少なくとも前記受圧板の後方まで一定であることを特徴とする請求項1乃至4のいずれか1項に記載の挿入式渦流量計。
- 前記測定管の内壁断面形状を矩形とすることを特徴とする請求項1乃至5のいずれか1項に記載の挿入式渦流量計。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004035883A JP3960976B2 (ja) | 2004-02-13 | 2004-02-13 | 挿入式渦流量計 |
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JP2004035883A JP3960976B2 (ja) | 2004-02-13 | 2004-02-13 | 挿入式渦流量計 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005227115A JP2005227115A (ja) | 2005-08-25 |
JP3960976B2 true JP3960976B2 (ja) | 2007-08-15 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004035883A Expired - Fee Related JP3960976B2 (ja) | 2004-02-13 | 2004-02-13 | 挿入式渦流量計 |
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JP (1) | JP3960976B2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4283255B2 (ja) | 2005-08-04 | 2009-06-24 | 株式会社ケーヒン | ガス燃料用噴射弁 |
DE102011080894A1 (de) | 2011-08-12 | 2013-02-14 | Endress + Hauser Flowtec Ag | Sensor-Modul zum Messen und/oder Überwachen von Parametern von in Rohrleitungen strömenden Medien sowie damit gebildetes Meßsystem |
US9016138B2 (en) * | 2013-03-13 | 2015-04-28 | Rosemount Inc. | Flanged reducer vortex flowmeter |
JP2015197325A (ja) * | 2014-03-31 | 2015-11-09 | アズビル株式会社 | 熱式流量計および流量補正方法 |
CN105891536A (zh) * | 2016-03-31 | 2016-08-24 | 中山大学 | 一种小孔风场流速压强测量仪 |
CN110132364B (zh) * | 2019-04-29 | 2021-01-05 | 天津大学 | 基于微型瞬态压力传感器的涡街互相关流量计 |
CN110905483B (zh) * | 2019-11-07 | 2023-03-21 | 西安康际石油科技有限公司 | 油田微波含水率及流量一体式流量计 |
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2004
- 2004-02-13 JP JP2004035883A patent/JP3960976B2/ja not_active Expired - Fee Related
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JP2005227115A (ja) | 2005-08-25 |
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