JPWO2021005761A1 - - Google Patents

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Publication number
JPWO2021005761A1
JPWO2021005761A1 JP2021530436A JP2021530436A JPWO2021005761A1 JP WO2021005761 A1 JPWO2021005761 A1 JP WO2021005761A1 JP 2021530436 A JP2021530436 A JP 2021530436A JP 2021530436 A JP2021530436 A JP 2021530436A JP WO2021005761 A1 JPWO2021005761 A1 JP WO2021005761A1
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2021530436A
Other versions
JP7197818B2 (ja
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Publication of JPWO2021005761A1 publication Critical patent/JPWO2021005761A1/ja
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Publication of JP7197818B2 publication Critical patent/JP7197818B2/ja
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Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Pipe Accessories (AREA)
  • Examining Or Testing Airtightness (AREA)
JP2021530436A 2019-07-10 2019-07-10 管路検査方法 Active JP7197818B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/027404 WO2021005761A1 (ja) 2019-07-10 2019-07-10 管路検査方法

Publications (2)

Publication Number Publication Date
JPWO2021005761A1 true JPWO2021005761A1 (ja) 2021-01-14
JP7197818B2 JP7197818B2 (ja) 2022-12-28

Family

ID=74114438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021530436A Active JP7197818B2 (ja) 2019-07-10 2019-07-10 管路検査方法

Country Status (3)

Country Link
US (1) US12061134B2 (ja)
JP (1) JP7197818B2 (ja)
WO (1) WO2021005761A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020255266A1 (ja) * 2019-06-18 2020-12-24 日本電信電話株式会社 絶対座標取得方法
JP7133670B2 (ja) * 2021-02-18 2022-09-08 東日本電信電話株式会社 設備位置特定装置及び設備位置特定システム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08289446A (ja) * 1995-04-14 1996-11-01 Noji Tec Kk 防水栓
JPH09203684A (ja) * 1996-01-26 1997-08-05 Tokyo Gas Co Ltd 既設配管系の漏洩検知方式
JPH09273975A (ja) * 1996-04-03 1997-10-21 Tokyo Gas Co Ltd 既設配管系の漏洩位置検知方法
JP2002257713A (ja) * 2001-02-27 2002-09-11 Igarashi Kogyo Kk 埋設管の異常発見方法並びにこの方法で用いられる異常発見用治具及びこの治具を備えた異常発見装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373381A (en) * 1981-01-29 1983-02-15 Leon Kulp Manhole leakage indicator and method for using
MXNL04000086A (es) * 2004-11-04 2006-05-09 Geo Estratos S A De C V Metodo de deteccion de fugas en tuberias subterraneas no metalicas.
JP7004915B2 (ja) * 2018-12-27 2022-02-10 日本電信電話株式会社 劣化予測方法
WO2020245992A1 (ja) * 2019-06-06 2020-12-10 日本電信電話株式会社 点検方法および点検装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08289446A (ja) * 1995-04-14 1996-11-01 Noji Tec Kk 防水栓
JPH09203684A (ja) * 1996-01-26 1997-08-05 Tokyo Gas Co Ltd 既設配管系の漏洩検知方式
JPH09273975A (ja) * 1996-04-03 1997-10-21 Tokyo Gas Co Ltd 既設配管系の漏洩位置検知方法
JP2002257713A (ja) * 2001-02-27 2002-09-11 Igarashi Kogyo Kk 埋設管の異常発見方法並びにこの方法で用いられる異常発見用治具及びこの治具を備えた異常発見装置

Also Published As

Publication number Publication date
US12061134B2 (en) 2024-08-13
JP7197818B2 (ja) 2022-12-28
WO2021005761A1 (ja) 2021-01-14
US20220268660A1 (en) 2022-08-25

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