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JPS56162029A - Water leakage detecting method - Google Patents

Water leakage detecting method

Info

Publication number
JPS56162029A
JPS56162029A JP6540580A JP6540580A JPS56162029A JP S56162029 A JPS56162029 A JP S56162029A JP 6540580 A JP6540580 A JP 6540580A JP 6540580 A JP6540580 A JP 6540580A JP S56162029 A JPS56162029 A JP S56162029A
Authority
JP
Japan
Prior art keywords
water
flowmeter
requirements
valve
reference values
Prior art date
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.)
Pending
Application number
JP6540580A
Other languages
Japanese (ja)
Inventor
Kuniaki Matsumoto
Masahiko Kashiwagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6540580A priority Critical patent/JPS56162029A/en
Publication of JPS56162029A publication Critical patent/JPS56162029A/en
Pending legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

PURPOSE:To accurately detect the water leakage of water pipe network by beforehand measuring the past actual water requirements with respect to plural days and calculating reference values and comparing actual water requirements with the reference values. CONSTITUTION:Water is supplied through water distribution pipe network 20 to each home 23, building 22, factory, etc. A flowmeter 40, a valve 50 and a water pressure gage 60 are provided to the pipeline at the inlet of this network 20. The output of the flowmeter 40 is smoothed by a smoothing circuit 45, and a smoothed output Qt is outputted. Since the flow rate measured by the flowmeter 40 is added with the flow rate change owing to opening and closing of the valve 50 and the like other than the demand change in the water distribution pipe network that is essentially desired to be measured, the control signal of an opening degree control device 70 is taken into the circuit 45, by which the noise caused by valve control is removed. The values of a memory 85 in which the past actual water requirements as reference values are compared with the subsequent acutal water requirements, whereby water leakage is detected.
JP6540580A 1980-05-19 1980-05-19 Water leakage detecting method Pending JPS56162029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6540580A JPS56162029A (en) 1980-05-19 1980-05-19 Water leakage detecting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6540580A JPS56162029A (en) 1980-05-19 1980-05-19 Water leakage detecting method

Publications (1)

Publication Number Publication Date
JPS56162029A true JPS56162029A (en) 1981-12-12

Family

ID=13286073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6540580A Pending JPS56162029A (en) 1980-05-19 1980-05-19 Water leakage detecting method

Country Status (1)

Country Link
JP (1) JPS56162029A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5860236A (en) * 1981-05-06 1983-04-09 ナツト・メイヤ− Method and device for detecting leakage of fluid
JPS59123799U (en) * 1983-02-09 1984-08-20 愛知時計電機株式会社 Leak detection device
JPS59123800U (en) * 1983-02-09 1984-08-20 愛知時計電機株式会社 Leakage investigation device
JPS59208300A (en) * 1983-05-12 1984-11-26 Mitsubishi Electric Corp Monitoring device for water supply equipment
JPS61103700U (en) * 1984-12-12 1986-07-01
JPS61180391A (en) * 1985-02-04 1986-08-13 リンナイ株式会社 Safety device
JPS62211536A (en) * 1986-03-13 1987-09-17 Nippon Kokan Kk <Nkk> Gas leak detecting means for gas line
JPS62211535A (en) * 1986-03-13 1987-09-17 Nippon Kokan Kk <Nkk> Abnormality detecting device for gas line
JP2011220821A (en) * 2010-04-09 2011-11-04 Yazaki Corp Regulator diagnostic system, regulator diagnostic apparatus and regulator diagnostic method
CN102466136A (en) * 2010-11-05 2012-05-23 江苏正本净化节水科技实业有限公司 Water leakage detection and control system used together with water purifier and water leakage detection and control method
WO2015063931A1 (en) * 2013-10-31 2015-05-07 株式会社日立製作所 Water-leak detector, water-leak detection system, and water-leak detection method
JP2015094665A (en) * 2013-11-12 2015-05-18 株式会社日立製作所 Water leakage investigation planning device, water leakage investigation planning system, and water leakage planning method
WO2015087378A1 (en) * 2013-12-09 2015-06-18 株式会社日立製作所 Water facility network abnormality detection device and abnormality detection method
WO2015129031A1 (en) * 2014-02-28 2015-09-03 株式会社日立製作所 Water-leak detection system and water-leak detection method
JP2015232515A (en) * 2014-06-10 2015-12-24 株式会社Ｎｔｔファシリティーズ Leakage detection system, leakage detection method, and program
CN105605429A (en) * 2015-12-29 2016-05-25 安徽海兴泰瑞智能科技有限公司 Method for managing urban water supply pipes
WO2016181593A1 (en) * 2015-05-13 2016-11-17 日本電気株式会社 Water-leak state estimation system, method, and recording medium
CN109945075A (en) * 2019-03-07 2019-06-28 三川智慧科技股份有限公司 A kind of water supply line leakiness detection method and device
JP2022025861A (en) * 2020-07-30 2022-02-10 株式会社明電舎 Water leakage detector and water leakage detection method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS525947A (en) * 1975-07-02 1977-01-18 Toshiba Corp Pipe burst detecting method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS525947A (en) * 1975-07-02 1977-01-18 Toshiba Corp Pipe burst detecting method

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5860236A (en) * 1981-05-06 1983-04-09 ナツト・メイヤ− Method and device for detecting leakage of fluid
JPS59123799U (en) * 1983-02-09 1984-08-20 愛知時計電機株式会社 Leak detection device
JPS59123800U (en) * 1983-02-09 1984-08-20 愛知時計電機株式会社 Leakage investigation device
JPH0248957Y2 (en) * 1983-02-09 1990-12-21
JPH0248956Y2 (en) * 1983-02-09 1990-12-21
JPS59208300A (en) * 1983-05-12 1984-11-26 Mitsubishi Electric Corp Monitoring device for water supply equipment
JPS61103700U (en) * 1984-12-12 1986-07-01
JPS61180391A (en) * 1985-02-04 1986-08-13 リンナイ株式会社 Safety device
JPS62211536A (en) * 1986-03-13 1987-09-17 Nippon Kokan Kk <Nkk> Gas leak detecting means for gas line
JPS62211535A (en) * 1986-03-13 1987-09-17 Nippon Kokan Kk <Nkk> Abnormality detecting device for gas line
JP2011220821A (en) * 2010-04-09 2011-11-04 Yazaki Corp Regulator diagnostic system, regulator diagnostic apparatus and regulator diagnostic method
CN102466136A (en) * 2010-11-05 2012-05-23 江苏正本净化节水科技实业有限公司 Water leakage detection and control system used together with water purifier and water leakage detection and control method
WO2015063931A1 (en) * 2013-10-31 2015-05-07 株式会社日立製作所 Water-leak detector, water-leak detection system, and water-leak detection method
JP2015094665A (en) * 2013-11-12 2015-05-18 株式会社日立製作所 Water leakage investigation planning device, water leakage investigation planning system, and water leakage planning method
JPWO2015087378A1 (en) * 2013-12-09 2017-03-16 株式会社日立製作所 Water facility network abnormality detection device and abnormality detection method
WO2015087378A1 (en) * 2013-12-09 2015-06-18 株式会社日立製作所 Water facility network abnormality detection device and abnormality detection method
WO2015129031A1 (en) * 2014-02-28 2015-09-03 株式会社日立製作所 Water-leak detection system and water-leak detection method
JP2015232515A (en) * 2014-06-10 2015-12-24 株式会社Ｎｔｔファシリティーズ Leakage detection system, leakage detection method, and program
WO2016181593A1 (en) * 2015-05-13 2016-11-17 日本電気株式会社 Water-leak state estimation system, method, and recording medium
JPWO2016181593A1 (en) * 2015-05-13 2018-02-22 日本電気株式会社 Leakage state estimation system, method, and recording medium
GB2554289A (en) * 2015-05-13 2018-03-28 Nec Corp Water-leak state estimation system, method, and recording medium
US10228301B2 (en) 2015-05-13 2019-03-12 Nec Corporation Water-leak state estimation system, method, and recording medium
GB2554289B (en) * 2015-05-13 2020-09-23 Nec Corp Water-leak state estimation system, method, and recording medium
CN105605429A (en) * 2015-12-29 2016-05-25 安徽海兴泰瑞智能科技有限公司 Method for managing urban water supply pipes
CN109945075A (en) * 2019-03-07 2019-06-28 三川智慧科技股份有限公司 A kind of water supply line leakiness detection method and device
JP2022025861A (en) * 2020-07-30 2022-02-10 株式会社明電舎 Water leakage detector and water leakage detection method

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