JP2010512476A - 水漏れを検出および/又は定量する方法と装置 - Google Patents
水漏れを検出および/又は定量する方法と装置 Download PDFInfo
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- JP2010512476A JP2010512476A JP2009540804A JP2009540804A JP2010512476A JP 2010512476 A JP2010512476 A JP 2010512476A JP 2009540804 A JP2009540804 A JP 2009540804A JP 2009540804 A JP2009540804 A JP 2009540804A JP 2010512476 A JP2010512476 A JP 2010512476A
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- point
- water
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- conductivity
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- 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
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
- G01F1/708—Measuring the time taken to traverse a fixed distance
- G01F1/7088—Measuring the time taken to traverse a fixed distance using electrically charged particles as tracers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Examining Or Testing Airtightness (AREA)
- Measuring Volume Flow (AREA)
Abstract
Description
そして、その漏洩は種々の方法を用いて発見されるが、最も普及した方法には、超音波又は音響信号を用いるものや、非音響技術を用いるもの、つまり、追跡ガス,地中レーダ,又は赤外線像を用いるものもある。
この実施例は図1と4を参照して説明される。
実施例1と同じようなテストが実行された。但し、パイプ1を通れる水流の流速は2500リットル/時間であった。
Claims (6)
- 推定漏洩点Fの下流の一点と、推定漏洩点Fの上流の一点との少なくとも異なる2点においてパイプ(1)を流れる水の流速を測定するタイプの、給水パイプ(1)における水漏れ(F)を検出および/又は定量する方法であって、水の導電率を変化させるトレーサを、推定漏洩点Fの上流の一点I1と、推定漏洩点Fの下流の一点I2において短時間に注入し、各点I1とI2の下流で、注入時刻t1から水の導電率がトレーサを注入する前の値に戻る時刻t2までの期間に、水の導電率を連続的に測定し、これらの値から、パイプ(1)における推定漏洩点Fの上流と下流の水流の流速Q1とQ2を算出することによって前記水の流速が測定されることを特徴とする方法。
- トレーサが漂白剤(NaOC1)であることを特徴とする請求項1記載の方法。
- a)少なくとも4つの水導電率測定器(2,3,4,5)を配置し、各測定器が2つの電気的に絶縁された電極(6,7)を備え、その一方(6)がセルの本体を構成し、他方(7)がパイプ(1)を流れる水流のちょうど中心位置に在り、電極(6)からなる測定器の本体が水を通過させることにより、
b)2つの電極(6)と(7)間に交流電流を供給し、第1測定器(2)が注入点I1の上流で推定漏洩点Fの下流の点A1においてパイプに設置され、第2測定器(3)が点A1の下流で推定漏洩点Fの上流の点A2に設置され、第3測定器(4)が注入点I2の下流の点B1に設置され、第4測定器(5)が点B1の下流の点B2に設置されることにより、
流速Q1とQ2が測定されることを特徴とする請求項1又は2記載の方法。 - 各測定器(2,3,4,5)の電極(6,7)がステンレス鋼から作られることを特徴とする請求項3記載の方法。
- 請求項1〜4のいずれか1つに記載の方法を実行するために水の導電率を測定する測定器(2)であって、
直径が好ましくはパイプ(1)の直径に等しく第1電極を構成する中空体(6)と、
中空体(6)に接続され中空体から電気的に絶縁され、かつ、中空体(6)の中心に位置する第2電極(7)と、
中空体(6)の各端をパイプ(1)の端にそれぞれ固定する2つの固定フランジ(8,9)と
を備えることを特徴とする測定器。 - 電極(6,7)がステンレス鋼から作られることを特徴とする請求項5記載の測定器(2)。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR06/10800 | 2006-12-12 | ||
FR0610800A FR2909764B1 (fr) | 2006-12-12 | 2006-12-12 | Procede et dispositif de detection et/ou de quantification de fuites d'eau. |
PCT/FR2007/001942 WO2008081089A2 (fr) | 2006-12-12 | 2007-11-27 | Procede et dispositif de detection et/ou de quantification de fuites d'eau |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010512476A true JP2010512476A (ja) | 2010-04-22 |
JP5027244B2 JP5027244B2 (ja) | 2012-09-19 |
Family
ID=38255022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009540804A Expired - Fee Related JP5027244B2 (ja) | 2006-12-12 | 2007-11-27 | 水漏れを検出および/又は定量する方法と装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8342006B2 (ja) |
EP (1) | EP2097729A2 (ja) |
JP (1) | JP5027244B2 (ja) |
CA (1) | CA2672255A1 (ja) |
FR (1) | FR2909764B1 (ja) |
WO (1) | WO2008081089A2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2935800B1 (fr) * | 2008-09-09 | 2010-11-19 | R & I Alliance | Procede et dispositif de detection de fuites dans une conduite de liquide souterraine, notamment une conduite d'eau |
CA2851273C (en) | 2011-10-04 | 2020-01-28 | Aseptia, Inc. | Conductivity measurement of fluids |
WO2016077509A1 (en) * | 2014-11-13 | 2016-05-19 | Daniel Sterling | Interactive water monitoring system |
US9933329B2 (en) * | 2015-08-11 | 2018-04-03 | Electro Scan, Inc. | Multi-sensor inspection for identification of pressurized pipe defects that leak |
CN106969885B (zh) * | 2017-04-21 | 2023-06-13 | 西安热工研究院有限公司 | 一种发电厂凝汽器泄漏检测***及检测方法 |
US10539480B2 (en) * | 2017-10-27 | 2020-01-21 | Mueller International, Llc | Frequency sub-band leak detection |
FI128387B (fi) * | 2018-05-11 | 2020-04-15 | Varo Teollisuuspalvelut Oy | Soodakattilavuodon toteaminen |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3695094A (en) * | 1970-07-16 | 1972-10-03 | Halliburton Co | Leak detection method and system |
JPS6018737A (ja) * | 1983-07-12 | 1985-01-30 | Kishimoto Boring Kk | 溜池漏水調査止水法 |
JPH05340837A (ja) * | 1992-06-09 | 1993-12-24 | Nissho Kogyo Kk | 地中埋設水道管の漏水箇所検知方法 |
JPH06281528A (ja) * | 1992-11-10 | 1994-10-07 | Nalco Chem Co | 漏れを検出する方法及び漏れ箇所の検出方法 |
JPH0896039A (ja) * | 1994-09-29 | 1996-04-12 | Akira Hayashi | 水道管路情報管理装置 |
JPH08304127A (ja) * | 1995-05-09 | 1996-11-22 | Toshiba Corp | 管内流速流量測定装置 |
US6393925B1 (en) * | 1999-05-26 | 2002-05-28 | University Of Waterloo | Groundwater velocity probe |
JP2006003339A (ja) * | 2004-05-20 | 2006-01-05 | Yokogawa Electric Corp | 電磁流量計及び電磁流量計の製造方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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US1616481A (en) * | 1922-10-02 | 1927-02-08 | Charles M Allen | Method of measuring the rate of flow of liquid |
US4407158A (en) * | 1979-12-17 | 1983-10-04 | Petroff Peter D | Flow analyzer |
FR2491618B1 (fr) * | 1980-10-07 | 1985-06-07 | Renault | Capteur ionique de debit a temps de transit de type differentiel |
JP2568620B2 (ja) * | 1988-03-29 | 1997-01-08 | 愛知時計電機株式会社 | 電磁流量計 |
US5247836A (en) * | 1992-01-24 | 1993-09-28 | Lew Hyok S | Convective electric current flowmeter |
FI106224B (fi) * | 1996-10-21 | 2000-12-15 | Grundfos Management As | Menetelmä ja laitteisto vuotoveden mittaamiseksi viemäriverkostossa |
US6314795B1 (en) * | 1997-07-22 | 2001-11-13 | Ferret Technology Limited | Leak tracing |
US7007545B1 (en) * | 1999-10-26 | 2006-03-07 | Peter Martinek | Method and measurement probe for the performance of measurements in water supply systems |
FR2860588B1 (fr) * | 2003-10-06 | 2005-12-16 | Inst Rech Developpement Ird | Procede et appareil pour la mesure de la vitesse d'un faible ecoulement d'eau |
US7279903B2 (en) * | 2005-05-02 | 2007-10-09 | Invensys Systems, Inc. | Non-metallic flow-through electrodeless conductivity sensor with leak and temperature detection |
AT501993B1 (de) * | 2006-02-20 | 2007-06-15 | Guenter Dipl Ing Fh Weilguny | Vorrichtung für die messung der geschwindigkeit eines fluids |
US7861601B2 (en) * | 2008-03-06 | 2011-01-04 | Colorado State University Research Foundation | Measurement of liquid flow in porous media by tracer dilution without continuous mixing |
-
2006
- 2006-12-12 FR FR0610800A patent/FR2909764B1/fr not_active Expired - Fee Related
-
2007
- 2007-11-27 US US12/518,850 patent/US8342006B2/en not_active Expired - Fee Related
- 2007-11-27 EP EP07870340A patent/EP2097729A2/fr not_active Withdrawn
- 2007-11-27 CA CA002672255A patent/CA2672255A1/fr not_active Abandoned
- 2007-11-27 JP JP2009540804A patent/JP5027244B2/ja not_active Expired - Fee Related
- 2007-11-27 WO PCT/FR2007/001942 patent/WO2008081089A2/fr active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3695094A (en) * | 1970-07-16 | 1972-10-03 | Halliburton Co | Leak detection method and system |
JPS6018737A (ja) * | 1983-07-12 | 1985-01-30 | Kishimoto Boring Kk | 溜池漏水調査止水法 |
JPH05340837A (ja) * | 1992-06-09 | 1993-12-24 | Nissho Kogyo Kk | 地中埋設水道管の漏水箇所検知方法 |
JPH06281528A (ja) * | 1992-11-10 | 1994-10-07 | Nalco Chem Co | 漏れを検出する方法及び漏れ箇所の検出方法 |
JPH0896039A (ja) * | 1994-09-29 | 1996-04-12 | Akira Hayashi | 水道管路情報管理装置 |
JPH08304127A (ja) * | 1995-05-09 | 1996-11-22 | Toshiba Corp | 管内流速流量測定装置 |
US6393925B1 (en) * | 1999-05-26 | 2002-05-28 | University Of Waterloo | Groundwater velocity probe |
JP2006003339A (ja) * | 2004-05-20 | 2006-01-05 | Yokogawa Electric Corp | 電磁流量計及び電磁流量計の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
CA2672255A1 (fr) | 2008-07-10 |
US8342006B2 (en) | 2013-01-01 |
WO2008081089A3 (fr) | 2008-09-04 |
FR2909764A1 (fr) | 2008-06-13 |
WO2008081089A2 (fr) | 2008-07-10 |
JP5027244B2 (ja) | 2012-09-19 |
FR2909764B1 (fr) | 2009-04-03 |
US20100064776A1 (en) | 2010-03-18 |
EP2097729A2 (fr) | 2009-09-09 |
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