GB601298A - An improved arrangement for detecting flow, and the direction of flow of fluid in electric cables and pipe lines - Google Patents

An improved arrangement for detecting flow, and the direction of flow of fluid in electric cables and pipe lines

Info

Publication number
GB601298A
GB601298A GB3201545A GB3201545A GB601298A GB 601298 A GB601298 A GB 601298A GB 3201545 A GB3201545 A GB 3201545A GB 3201545 A GB3201545 A GB 3201545A GB 601298 A GB601298 A GB 601298A
Authority
GB
United Kingdom
Prior art keywords
thermo
flow
cable
tube
heater
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.)
Expired
Application number
GB3201545A
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.)
FREDERICK STRETTON SMITH
Balfour Beatty PLC
Original Assignee
FREDERICK STRETTON SMITH
BICC PLC
Filing date
Publication date
Priority to BE468822D priority Critical patent/BE468822A/xx
Application filed by FREDERICK STRETTON SMITH, BICC PLC filed Critical FREDERICK STRETTON SMITH
Priority to FR935094D priority patent/FR935094A/en
Publication of GB601298A publication Critical patent/GB601298A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/6847—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow where sensing or heating elements are not disturbing the fluid flow, e.g. elements mounted outside the flow duct
    • 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
    • G01M3/002—Investigating fluid-tightness of structures by using thermal means
    • 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
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/181—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for cables
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/30—Inspecting, measuring or testing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

601,298. Electric indicating systems. BRITISH INSULATED CALLENDER'S CABLES, Ltd., and SMITH, F. S. Nov. 27, 1945, No. 32015. [Class 39(iii)] [Also in Groups XXVIII and XXXVIII] To detect the presence and direction of fluid flow in a tube, the localised transfer of heat to or from the tube is effected and the resultant temperature gradient along the tube observed by two means; symmetrically disposed relative to the zone of heat transfer. In the embodiment shown the heater resistance 2 is disposed about the cable 1 and supplied from battery 6. Thermo-junctions 13, 14 make contact with the wall of cable 1 on either side of and equidistant from heater 2 and are connected in opposition through centre-reading galvanometer 15. The temperature of the heater 2 may be indicated by a third thermo-junction 18 incorporated in a pyrometer 19. A fluid flow causes a rise in the temperature of one thermo-couple relative to that of the other, depending upon the direction of flow, and the meter 15 registers the consequent unbalance E.M.F., which with appropriate calibration of the meter will give a direct, measurement of the rate of flow. The thermo-couples and heating units may be assembled together in a single unit built in two sections hinged together, which may be laid round the cable and bolted together to grip the outer sheath. In a further embodiment (not shown) the heat transfer unit is an eddy current heating device and in another, cooling instead of heating is effected by carbon dioxide crystals. To yield a larger resultant E.M.F. a number of thermo-couples in series may be used in place of the single units 13, 14.
GB3201545A 1945-11-27 1945-11-27 An improved arrangement for detecting flow, and the direction of flow of fluid in electric cables and pipe lines Expired GB601298A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE468822D BE468822A (en) 1945-11-27
FR935094D FR935094A (en) 1945-11-27 1946-10-24 Device for locating fluid leaks in electrical cables and pipes

Publications (1)

Publication Number Publication Date
GB601298A true GB601298A (en) 1948-05-03

Family

ID=1742820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3201545A Expired GB601298A (en) 1945-11-27 1945-11-27 An improved arrangement for detecting flow, and the direction of flow of fluid in electric cables and pipe lines

Country Status (1)

Country Link
GB (1) GB601298A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750581A (en) * 1954-04-12 1956-06-12 Darian Ernest Differential protection of penstocks and pipe lines
US2953022A (en) * 1955-07-08 1960-09-20 Laub John Harry Thermal flow meter
US2972885A (en) * 1954-09-24 1961-02-28 Laub John Harry Flow meter
US3019647A (en) * 1957-08-30 1962-02-06 Honeywell Regulator Co Electrical fluid-flow measuring apparatus
US3056295A (en) * 1955-07-08 1962-10-02 Laub John Harry Flow meter
US3181357A (en) * 1962-06-29 1965-05-04 Hastings Raydist Inc Thermal flowmeter
US3438254A (en) * 1965-10-19 1969-04-15 United Control Corp Fluid flow detector
US3500686A (en) * 1968-09-25 1970-03-17 Nasa Heated element fluid flow sensor
US3818758A (en) * 1972-10-06 1974-06-25 Fluid Flow Inc Electrical flow meter
US4848147A (en) * 1987-07-10 1989-07-18 Bailey James L Thermal transient anemometer
WO1989012216A1 (en) * 1988-06-10 1989-12-14 Iss Electronics A/S (Automatik Division) Apparatus for registering leakage or unintended consumption in a pipe system
DE4017877A1 (en) * 1990-06-02 1991-12-12 Hiss Eckart Flow measurement sensor for wall mounted or in-flow use - has functional elements on tubular body mounted in measurement pin or over measurement body
DE19623174C1 (en) * 1996-06-10 1997-11-27 Trilog Thermotechnik Gmbh Device for detecting a liquid or gaseous medium
GB2314161A (en) * 1996-06-10 1997-12-17 Freeze Master Ltd Detecting liquid flow in a pipe subjected to freeze blocking or heating
WO2007015857A2 (en) * 2005-07-20 2007-02-08 Honeywell International Inc. Tube and die interface for liquid flow sensing through the tube
EP3696525A1 (en) * 2019-02-13 2020-08-19 Marioff Corporation OY Clamp with flow detection capabilities for fire suppression applications
US20220236091A1 (en) * 2020-09-14 2022-07-28 Korea Research Institute Of Standard And Science Thermal mass flowmeter

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750581A (en) * 1954-04-12 1956-06-12 Darian Ernest Differential protection of penstocks and pipe lines
US2972885A (en) * 1954-09-24 1961-02-28 Laub John Harry Flow meter
US2953022A (en) * 1955-07-08 1960-09-20 Laub John Harry Thermal flow meter
US3056295A (en) * 1955-07-08 1962-10-02 Laub John Harry Flow meter
US3019647A (en) * 1957-08-30 1962-02-06 Honeywell Regulator Co Electrical fluid-flow measuring apparatus
US3181357A (en) * 1962-06-29 1965-05-04 Hastings Raydist Inc Thermal flowmeter
US3438254A (en) * 1965-10-19 1969-04-15 United Control Corp Fluid flow detector
US3500686A (en) * 1968-09-25 1970-03-17 Nasa Heated element fluid flow sensor
US3818758A (en) * 1972-10-06 1974-06-25 Fluid Flow Inc Electrical flow meter
US4848147A (en) * 1987-07-10 1989-07-18 Bailey James L Thermal transient anemometer
WO1989012216A1 (en) * 1988-06-10 1989-12-14 Iss Electronics A/S (Automatik Division) Apparatus for registering leakage or unintended consumption in a pipe system
DE4017877A1 (en) * 1990-06-02 1991-12-12 Hiss Eckart Flow measurement sensor for wall mounted or in-flow use - has functional elements on tubular body mounted in measurement pin or over measurement body
DE19623174C1 (en) * 1996-06-10 1997-11-27 Trilog Thermotechnik Gmbh Device for detecting a liquid or gaseous medium
GB2314161A (en) * 1996-06-10 1997-12-17 Freeze Master Ltd Detecting liquid flow in a pipe subjected to freeze blocking or heating
US6058774A (en) * 1996-06-10 2000-05-09 Trilog Thermotechnik Gmbh Device for detecting flow of a fluid including a temperature measuring instrument
WO2007015857A2 (en) * 2005-07-20 2007-02-08 Honeywell International Inc. Tube and die interface for liquid flow sensing through the tube
WO2007015857A3 (en) * 2005-07-20 2007-05-18 Honeywell Int Inc Tube and die interface for liquid flow sensing through the tube
EP3696525A1 (en) * 2019-02-13 2020-08-19 Marioff Corporation OY Clamp with flow detection capabilities for fire suppression applications
US20220236091A1 (en) * 2020-09-14 2022-07-28 Korea Research Institute Of Standard And Science Thermal mass flowmeter

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