JP6988391B2 - 蒸気流量計測装置 - Google Patents
蒸気流量計測装置 Download PDFInfo
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- JP6988391B2 JP6988391B2 JP2017218052A JP2017218052A JP6988391B2 JP 6988391 B2 JP6988391 B2 JP 6988391B2 JP 2017218052 A JP2017218052 A JP 2017218052A JP 2017218052 A JP2017218052 A JP 2017218052A JP 6988391 B2 JP6988391 B2 JP 6988391B2
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Description
h=Nu×λw/ri …式(1)
Nu=f(Re,Pr)
=0.023Re0.8Pr0.4[(1−x)0.8+3.8x0.76×(1−x)0.04/(P/Pcr)0.38] …式(2)
Re=V×ri/ν …式(3)
Claims (3)
- 配管内を流れる蒸気の流量を計測する蒸気流量計測装置において、
前記配管に接して配置される熱電変換素子と、
前記熱電変換素子の外側に配置される冷却装置と、
前記熱電変換素子の発電容量を計測および記録する計測部と、
記録した発電容量を送信する無線通信部と、
を備え、
前記計測部および無線通信部の電力を前記熱電変換素子が発電した電力でまかなうことを特徴とする蒸気流量計測装置。 - 前記冷却装置は、ヒートシンクと、該ヒートシンクの外側に配置された冷却ファンとを有し、
前記冷却ファンの電力を前記熱電変換素子が発電した電力でまかなうことを特徴とする請求項1に記載の蒸気流量計測装置。 - 前記無線通信部は、マルチホップ接続で他の蒸気流量計測装置が送信した発電容量のデータを中継することを特徴とする請求項1または2に記載の蒸気流量計測装置。
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JP2019090640A JP2019090640A (ja) | 2019-06-13 |
JP6988391B2 true JP6988391B2 (ja) | 2022-01-05 |
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Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4405099B2 (ja) * | 2001-03-09 | 2010-01-27 | 株式会社東芝 | 計量器 |
JP4175839B2 (ja) * | 2002-07-10 | 2008-11-05 | 株式会社東芝 | 流路管用熱電変換モジュール |
JP2009053175A (ja) * | 2007-08-27 | 2009-03-12 | Teratekku:Kk | 熱電発電式温度計測表示装置 |
WO2011075568A1 (en) * | 2009-12-18 | 2011-06-23 | Waters Technologies Corporation | Thermal-based flow sensing apparatus and method for high-performance liquid chromatography |
JP6264154B2 (ja) * | 2014-03-31 | 2018-01-24 | 東京電力ホールディングス株式会社 | 熱量計および熱量計測方法 |
JP2016161407A (ja) * | 2015-03-02 | 2016-09-05 | Ntn株式会社 | 異常検出装置 |
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