FI60078C - Isolerat roersystem med medel foer att detektera intraengning av fukt i isoleringen - Google Patents

Isolerat roersystem med medel foer att detektera intraengning av fukt i isoleringen Download PDF

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Publication number
FI60078C
FI60078C FI910/74A FI91074A FI60078C FI 60078 C FI60078 C FI 60078C FI 910/74 A FI910/74 A FI 910/74A FI 91074 A FI91074 A FI 91074A FI 60078 C FI60078 C FI 60078C
Authority
FI
Finland
Prior art keywords
conductors
phase
insulation
pipe
signal
Prior art date
Application number
FI910/74A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI60078B (fi
Inventor
Ejvind Lambertsen
Original Assignee
Rasmussen As E
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 Rasmussen As E filed Critical Rasmussen As E
Publication of FI60078B publication Critical patent/FI60078B/fi
Application granted granted Critical
Publication of FI60078C publication Critical patent/FI60078C/fi

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
    • G01M3/04—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
    • 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
    • G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
    • G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
FI910/74A 1973-03-26 1974-03-26 Isolerat roersystem med medel foer att detektera intraengning av fukt i isoleringen FI60078C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1431673 1973-03-26
GB1431673A GB1455415A (en) 1973-03-26 1973-03-26 Insulated pipe system having means for detection of moisture in the insulation thereof

Publications (2)

Publication Number Publication Date
FI60078B FI60078B (fi) 1981-07-31
FI60078C true FI60078C (fi) 1981-11-10

Family

ID=10038994

Family Applications (1)

Application Number Title Priority Date Filing Date
FI910/74A FI60078C (fi) 1973-03-26 1974-03-26 Isolerat roersystem med medel foer att detektera intraengning av fukt i isoleringen

Country Status (13)

Country Link
US (1) US3927351A (de)
JP (1) JPS51135588A (de)
BE (1) BE812812A (de)
CA (1) CA1001716A (de)
CH (1) CH568524A5 (de)
DE (1) DE2413345C2 (de)
DK (1) DK155293C (de)
FI (1) FI60078C (de)
FR (1) FR2223625B1 (de)
GB (1) GB1455415A (de)
IT (1) IT1010823B (de)
NL (1) NL7404112A (de)
SE (1) SE405286B (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5522162A (en) * 1978-08-07 1980-02-16 Hitachi Ltd Sodium leak detecting method and device
SE414532B (sv) * 1979-06-18 1980-08-04 Blom H Anordning vid en fjerrvermeledning samt sett att framstella en sadan anordning
SE424359B (sv) * 1979-09-05 1982-07-12 Blom H Anordning for brottindikering vid fjerrvermeror
DE3110054A1 (de) * 1981-03-16 1982-10-14 G + H Montage Gmbh, 6700 Ludwigshafen Rohrleitungssystem, insbesondere aus waermegedaemmten fernwaermerohren
GB2132773A (en) * 1982-12-23 1984-07-11 Bicc Plc Monitoring electrically presence of liquid in the thermal insulation of a pipe system
SE456376B (sv) * 1983-12-08 1988-09-26 Helmersson Rune Larmanordning vid isolerat rorsystem
EP0207253A1 (de) * 1985-05-09 1987-01-07 Meier-Schenk AG (Meier-Schenk SA) Sensor zum Feststellen von Nassstellen in der thermischen Isolierung von Rohrleitungen
DE3628336A1 (de) * 1986-08-21 1988-02-25 Roero Ges Fuer Isolier Und Fer Rohrleitungssystem und waermeisolierte rohre, z.b. fuer fernheizleitungen
GB2208005A (en) * 1987-08-07 1989-02-15 Apv Uk Plate heat transfer apparatus
JPH01117759U (de) * 1988-01-28 1989-08-09
GB8809070D0 (en) * 1988-04-18 1988-05-18 Redding R J Communications network to resist e m p
JPH0314457U (de) * 1989-06-23 1991-02-14
DE4015075C2 (de) * 1990-05-10 1997-02-27 Bernd Brandes Verfahren zur Ermittlung von Undichtigkeiten an Leitungsrohren für flüssige Medien
DE4104216A1 (de) * 1991-02-12 1992-08-13 Bernd Brandes Leitungsrohr zum transport eines mediums
EP0745841B1 (de) * 1994-12-16 2002-04-03 Tokyo Gas Co., Ltd. Verfahren und vorrichtung zur inspektion eines rohres mit elektromagnetischer strahlung
DE19544391A1 (de) * 1995-11-15 1997-05-22 Siemens Ag Meßschaltung zum Erfassen und Orten von Wassereinbrüchen an Rohr- oder Kabelanlagen
DE19632991C1 (de) * 1996-08-15 1998-01-08 Bernd Brandes Rohrleitungssystem, insbesondere für die Übertragung von Fernwärme
GB2324585A (en) * 1997-04-23 1998-10-28 David Leslie Young Heated hoses
EP1342998A3 (de) * 2002-03-08 2006-01-18 UST Umweltsensortechnik GmbH Verfahren und Anordnung zur Erkennung von Leckagen an einem gasgefüllten System
DE10315925B4 (de) * 2003-04-08 2012-01-05 Ust Umweltsensortechnik Gmbh Verfahren und Anordnung zur Erkennung von Leckagen an einem gasgefüllten System
DE102008025226A1 (de) * 2008-05-27 2009-12-03 Linde Ag Leitung zur Führung eines Mediums
DE102013020645A1 (de) * 2013-12-16 2015-06-18 Karin Niss Verfahren zum Bestimmen der Feuchte in der Dämmung einer Fernwärmeleitung
US10481099B2 (en) * 2015-07-02 2019-11-19 Exxonmobil Upstream Research Company Detecting moisture proximate to insulation
US10222290B2 (en) * 2015-08-11 2019-03-05 Exxonmobil Upstream Research Detecting moisture proximate to insulation
US10236683B2 (en) * 2016-06-10 2019-03-19 Apple Inc. Corrosion mitigation for an external connector of an electronic device
US10591430B2 (en) * 2017-09-08 2020-03-17 Apple Inc. Method and system for detecting moisture on a connector contact
DE102018123784A1 (de) 2018-09-26 2020-03-26 Kaefer Isoliertechnik Gmbh & Co. Kg Sensor und Messanordnung zur Detektion eines Fluids an einem mit einer Dämmung versehenen Bauteil
DE102018123787A1 (de) * 2018-09-26 2020-03-26 Kaefer Isoliertechnik Gmbh & Co. Kg Messanordnung und Verfahren zur Detektion von Fehlstellen in oder unterhalb einer Dämmung einer betriebstechnischen Anlage
DE102018123783A1 (de) 2018-09-26 2020-03-26 Kaefer Isoliertechnik Gmbh & Co. Kg Verfahren, Sensor und Messanordnung zur Detektion von Feuchtigkeit in einer Wärmedämmung
US11658443B2 (en) 2021-04-13 2023-05-23 Apple Inc. Liquid detection and corrosion mitigation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759149A (en) * 1951-07-24 1956-08-14 Hart John Alfred Henry Moisture measuring apparatus
GB776415A (en) * 1955-07-14 1957-06-05 Shell Res Ltd Improvements in or relating to chemical plant including a continuously operating liquid circulation system
GB1311472A (en) * 1969-03-18 1973-03-28 Rasmussen As E Pipe system of heat insulated pipes including means for detecting the presence of moisture
US3678376A (en) * 1970-12-14 1972-07-18 Gte Automatic Electric Lab Inc Arrangement for testing breakdown of the insulation of a conductor utilizing an alternating current circuit to eliminate stray capacitance effects
US3710244A (en) * 1971-01-11 1973-01-09 G Rauchwerger Capacitance probe for detecting moisture with very long cables

Also Published As

Publication number Publication date
US3927351A (en) 1975-12-16
CA1001716A (en) 1976-12-14
DK155293B (da) 1989-03-20
SE405286B (sv) 1978-11-27
FI60078B (fi) 1981-07-31
FR2223625A1 (de) 1974-10-25
DE2413345A1 (de) 1974-10-17
CH568524A5 (de) 1975-10-31
FR2223625B1 (de) 1978-03-24
NL7404112A (de) 1974-09-30
DK155293C (da) 1989-07-31
BE812812A (fr) 1974-07-15
IT1010823B (it) 1977-01-20
DE2413345C2 (de) 1985-07-18
GB1455415A (en) 1976-11-10
JPS51135588A (en) 1976-11-24

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