JP5453499B2 - ガス配管気密検査用圧力計 - Google Patents
ガス配管気密検査用圧力計 Download PDFInfo
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- JP5453499B2 JP5453499B2 JP2012183557A JP2012183557A JP5453499B2 JP 5453499 B2 JP5453499 B2 JP 5453499B2 JP 2012183557 A JP2012183557 A JP 2012183557A JP 2012183557 A JP2012183557 A JP 2012183557A JP 5453499 B2 JP5453499 B2 JP 5453499B2
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- 238000005259 measurement Methods 0.000 claims description 37
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 27
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- 230000007246 mechanism Effects 0.000 description 5
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Description
2…圧力センサー部
25…制御装置
40…圧力導入口
43…導入管路
44…マニホルド配管
45…中高圧用センサー
46…中高圧測定用管路
47…低圧測定用管路
48…低圧センサー保護用電磁弁
49…低圧用センサー
50…圧力信号処理回路
80…ガス配管
82…検査口
Claims (2)
- ガス配管のガス圧を測定するガス配管気密検査用圧力計において、
圧力測定対象の検査口に対し着脱自在に接続される圧力導入口に通じる導入管路と、
この導入管路から分岐する中高圧測定用管路及び低圧測定用管路と、
上記中高圧測定用管路に設けられ、その中高圧測定用管路の圧力を測定するための中高圧用センサーと、
上記低圧測定用管路に設けられ、該低圧測定用管路を開閉する低圧センサー保護用電磁弁と、
上記低圧測定用管路に上記低圧センサー保護用電磁弁よりも下流側に設けられ、上記電磁弁が開放したとき該低圧測定用管路の圧力を測定するための低圧用センサーと、
上記中高圧用センサーが測定する圧力信号を処理し、上記中高圧用センサーが測定する測定値が低圧のしきい値を超えた領域にあるとき上記低圧センサー保護用電磁弁を遮断し、上記中高圧用センサーが測定する測定値が低圧のしきい値を下回るときに上記低圧センサー保護用電磁弁を開放する圧力信号処理回路と、
を具備したことを特徴とするガス配管気密検査用圧力計。 - 上記低圧センサー保護用電磁弁は、弁を開閉駆動する励磁コイルを有し、該励磁コイル対する通電を継続することなく、励磁コイルに瞬間的に通電することで上記弁を閉じまたは上記弁を開き、それら弁の状態が切り替わった後、励磁コイルに無給電で電磁弁の閉じまたは開き状態を維持する自己保持機能を備えることを特徴とする請求項1に記載のガス配管気密検査用圧力計。
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JP2012183557A JP5453499B2 (ja) | 2012-08-22 | 2012-08-22 | ガス配管気密検査用圧力計 |
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JP2012183557A JP5453499B2 (ja) | 2012-08-22 | 2012-08-22 | ガス配管気密検査用圧力計 |
Publications (2)
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JP2014041059A JP2014041059A (ja) | 2014-03-06 |
JP5453499B2 true JP5453499B2 (ja) | 2014-03-26 |
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JP2012183557A Active JP5453499B2 (ja) | 2012-08-22 | 2012-08-22 | ガス配管気密検査用圧力計 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105716779B (zh) * | 2015-11-02 | 2019-02-22 | 北京航空航天大学 | 动态压力叶型探针 |
JP2017207094A (ja) * | 2016-05-16 | 2017-11-24 | 大陽日酸株式会社 | 水素充填装置及び水素充填方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11326098A (ja) * | 1998-05-13 | 1999-11-26 | Mitsubishi Electric Building Techno Service Co Ltd | 圧力測定器 |
JP3956349B2 (ja) * | 2002-03-13 | 2007-08-08 | 本田技研工業株式会社 | ガス圧力検出装置 |
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