FR2344009A1 - Leakage detector for liq. pipe system - uses differential pressure transmitters and pressure measuring transducers as flow meters (OE 15.4.77) - Google Patents

Leakage detector for liq. pipe system - uses differential pressure transmitters and pressure measuring transducers as flow meters (OE 15.4.77)

Info

Publication number
FR2344009A1
FR2344009A1 FR7705739A FR7705739A FR2344009A1 FR 2344009 A1 FR2344009 A1 FR 2344009A1 FR 7705739 A FR7705739 A FR 7705739A FR 7705739 A FR7705739 A FR 7705739A FR 2344009 A1 FR2344009 A1 FR 2344009A1
Authority
FR
France
Prior art keywords
liq
measuring transducers
differential pressure
pipe system
flow meters
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.)
Granted
Application number
FR7705739A
Other languages
French (fr)
Other versions
FR2344009B3 (en
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2344009A1 publication Critical patent/FR2344009A1/en
Application granted granted Critical
Publication of FR2344009B3 publication Critical patent/FR2344009B3/fr
Granted 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
    • 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
    • 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)
  • Measuring Volume Flow (AREA)

Abstract

The appts. is for measuring leakage losses in a liq. pipe system and comprises forward and return flow meters consisting of differential pressure transmitters and pressure measuring transducers. A first switch allows parallel connection of the inputs of two pressure measuring transducers to one of the differential pressure transmitters. The transducer outputs are connected to a first subtractive connecting stage and, by controlled switches, to a second connecting stage. The differential signal of the first is passed to a store of which the contents can be applied to the second stage as a correction signal with reverse preceding sign. The output signal of the second stage is passed to an integrator with fixed integration time, of which the output supplies an indicator.
FR7705739A 1976-03-09 1977-02-28 Leakage detector for liq. pipe system - uses differential pressure transmitters and pressure measuring transducers as flow meters (OE 15.4.77) Granted FR2344009A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762609717 DE2609717A1 (en) 1976-03-09 1976-03-09 DEVICE FOR MEASURING LEAK LEAKAGE IN A LIQUID PIPING SYSTEM

Publications (2)

Publication Number Publication Date
FR2344009A1 true FR2344009A1 (en) 1977-10-07
FR2344009B3 FR2344009B3 (en) 1980-01-11

Family

ID=5971902

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7705739A Granted FR2344009A1 (en) 1976-03-09 1977-02-28 Leakage detector for liq. pipe system - uses differential pressure transmitters and pressure measuring transducers as flow meters (OE 15.4.77)

Country Status (3)

Country Link
AT (1) AT340704B (en)
DE (1) DE2609717A1 (en)
FR (1) FR2344009A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624271A1 (en) * 1987-12-02 1989-06-09 Aerospatiale LEAK DETECTOR DEVICE FOR A FLUID CIRCUIT
EP0882967A1 (en) * 1997-06-06 1998-12-09 Regie Autonome des Transports Parisiens RATP Apparatus for indicating a flow, in particular due to a leak in a fluid circuit
CN111853553A (en) * 2020-07-30 2020-10-30 中冶赛迪重庆信息技术有限公司 Method and system for detecting fault of fluid pipeline
CN109386738B (en) * 2018-12-18 2023-11-14 中国石油天然气集团有限公司 Pipe explosion monitoring alarm and interlocking protection device for valve chamber main pipeline of gas pipeline

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2061526B (en) * 1979-10-18 1983-10-19 Electricity Council Locating a leak in an oil filled cable
CN108591836B (en) * 2018-04-13 2020-06-26 中国石油大学(北京) Method and device for detecting pipeline leakage
CN113309988A (en) * 2021-04-06 2021-08-27 中国船舶重工集团公司第七0三研究所 Method for judging pipeline leakage by utilizing pipeline pressure change

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624271A1 (en) * 1987-12-02 1989-06-09 Aerospatiale LEAK DETECTOR DEVICE FOR A FLUID CIRCUIT
EP0882967A1 (en) * 1997-06-06 1998-12-09 Regie Autonome des Transports Parisiens RATP Apparatus for indicating a flow, in particular due to a leak in a fluid circuit
FR2764378A1 (en) * 1997-06-06 1998-12-11 Regie Autonome Transports FLOW SIGNALING APPARATUS IN PARTICULAR FROM A LEAK IN A FLUID CIRCUIT
CN109386738B (en) * 2018-12-18 2023-11-14 中国石油天然气集团有限公司 Pipe explosion monitoring alarm and interlocking protection device for valve chamber main pipeline of gas pipeline
CN111853553A (en) * 2020-07-30 2020-10-30 中冶赛迪重庆信息技术有限公司 Method and system for detecting fault of fluid pipeline

Also Published As

Publication number Publication date
FR2344009B3 (en) 1980-01-11
ATA231576A (en) 1977-04-15
AT340704B (en) 1977-12-27
DE2609717A1 (en) 1977-09-15

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Legal Events

Date Code Title Description
ST Notification of lapse