GB1493124A - Device for detecting a failure in an insulation system in particular in the insulation system of a cryogenic tank - Google Patents

Device for detecting a failure in an insulation system in particular in the insulation system of a cryogenic tank

Info

Publication number
GB1493124A
GB1493124A GB48882/74A GB4888274A GB1493124A GB 1493124 A GB1493124 A GB 1493124A GB 48882/74 A GB48882/74 A GB 48882/74A GB 4888274 A GB4888274 A GB 4888274A GB 1493124 A GB1493124 A GB 1493124A
Authority
GB
United Kingdom
Prior art keywords
cell
ion
conducting material
insulation system
failure
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
GB48882/74A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB48882/74A priority Critical patent/GB1493124A/en
Priority to CA236,624A priority patent/CA1036222A/en
Priority to FR7534289A priority patent/FR2291489A1/en
Priority to NL7513113A priority patent/NL7513113A/en
Priority to NO753748A priority patent/NO142186C/en
Priority to JP50134219A priority patent/JPS5171182A/ja
Priority to SE7512599A priority patent/SE7512599L/en
Priority to DE19752550446 priority patent/DE2550446A1/en
Publication of GB1493124A publication Critical patent/GB1493124A/en
Expired 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
    • G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/126—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for large storage containers for liquefied gas
    • 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
    • G01M3/186—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 containers, e.g. radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Cable Accessories (AREA)
  • Details Of Measuring And Other Instruments (AREA)

Abstract

1493124 Determining insulation failure SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 12 Nov 1974 48882/74 Headings G1N(A) and (C) A device for detecting failure of thermal insulation of a cryogenic tank comprises a plurality of cell units each containing an ion-conducting material which changes its electrical conductivity on freezing and a pair of electrodes 4, 5 in contact with said material connected in a circuit for measuring ionic conductivity. Each cell consists of a small reservoir 9 in communication with a large reservoir 10 but thermally insulated therefrom by an element 6, e.g. of p.u.c., whereby the sensitivity of the cell is increased. The large cell compensates for any loss of ion-conducting material. The ion-conducting material may be a solution of common salt or copper sulphate in water or hydrates of organic compounds. The electrodes may be of different materials, e.g. zinc and copper so that the measuring current is internally generated. The cells are connected in series to form groups I-VI each with a respective indicator 31-36 which enables the location of a fault to be detected. The cells may also be arranged in concentric circles. In a further embodiment Figs. 3 and 4 (not shown) a cup-shaped electrode (46) is fitted in a gas and liquid-tight manner to a moulded thermal insulating element (41) to form the large reservoir.
GB48882/74A 1974-11-12 1974-11-12 Device for detecting a failure in an insulation system in particular in the insulation system of a cryogenic tank Expired GB1493124A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB48882/74A GB1493124A (en) 1974-11-12 1974-11-12 Device for detecting a failure in an insulation system in particular in the insulation system of a cryogenic tank
CA236,624A CA1036222A (en) 1974-11-12 1975-09-29 Low temperature insulation failure detector
FR7534289A FR2291489A1 (en) 1974-11-12 1975-11-10 DEVICE FOR DETECTING A FAILURE IN A THERMAL INSULATION SYSTEM, IN PARTICULAR IN THE INSULATION SYSTEM OF A CRYOGENIC TANK
NL7513113A NL7513113A (en) 1974-11-12 1975-11-10 DEVICE FOR DETECTING A DEFECT IN AN INSULATION SYSTEM, PARTICULARLY IN THE ISOLATION SYSTEM OF A CRYOGENIC TANK.
NO753748A NO142186C (en) 1974-11-12 1975-11-10 DEVICE FOR DETECTING A FAILURE IN A COLD INSULATION SYSTEM, AND INSTALLATION CONTAINING AT LEAST ONE SUCH DEVICE
JP50134219A JPS5171182A (en) 1974-11-12 1975-11-10
SE7512599A SE7512599L (en) 1974-11-12 1975-11-10 DEVICE FOR DETECTING ERRORS IN AN INSULATION SYSTEM, SPECIAL IN INSULATION SYSTEM FOR A TYPE FOR THE CRYOGENA SUBJECT
DE19752550446 DE2550446A1 (en) 1974-11-12 1975-11-10 DEVICE FOR DETECTING DAMAGE TO AN INSULATING SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB48882/74A GB1493124A (en) 1974-11-12 1974-11-12 Device for detecting a failure in an insulation system in particular in the insulation system of a cryogenic tank

Publications (1)

Publication Number Publication Date
GB1493124A true GB1493124A (en) 1977-11-23

Family

ID=10450309

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48882/74A Expired GB1493124A (en) 1974-11-12 1974-11-12 Device for detecting a failure in an insulation system in particular in the insulation system of a cryogenic tank

Country Status (8)

Country Link
JP (1) JPS5171182A (en)
CA (1) CA1036222A (en)
DE (1) DE2550446A1 (en)
FR (1) FR2291489A1 (en)
GB (1) GB1493124A (en)
NL (1) NL7513113A (en)
NO (1) NO142186C (en)
SE (1) SE7512599L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2728545B1 (en) * 1994-12-22 1997-01-24 Liotard Metallurg TANK PROVIDED WITH DEVICES FOR MONITORING THE GOOD CONDITION OF THE TANK

Also Published As

Publication number Publication date
CA1036222A (en) 1978-08-08
NO753748L (en) 1976-05-13
FR2291489A1 (en) 1976-06-11
NO142186C (en) 1980-07-09
NO142186B (en) 1980-03-31
SE7512599L (en) 1976-05-13
DE2550446A1 (en) 1976-05-13
JPS5171182A (en) 1976-06-19
FR2291489B1 (en) 1979-06-15
NL7513113A (en) 1976-05-14

Similar Documents

Publication Publication Date Title
US2890414A (en) Electrochemical coulometer
GB1193597A (en) Temperature Compensated Electrochemical Cell.
ES392920A1 (en) Apparatus for oxygen determination
GB1433962A (en) Formation of adherent precipitates on surfaces immersed in liquids
ES8302306A1 (en) Conductivity cell
GB770597A (en) Reference electrode for making ph measurements
GB1326752A (en) Excess temperature switches
GB1450047A (en) Method and device for detecting a failure in a cold insulation system shaving devices
GB1493124A (en) Device for detecting a failure in an insulation system in particular in the insulation system of a cryogenic tank
US3857760A (en) Process of measuring the concentration of a dissociatable component in a gas and apparatus therefor
US3170860A (en) Condition responsive devices
ES460823A1 (en) Probe for an electrochemical oxygen measurement pickup
US2881056A (en) Galvanic corrosion indicator
JPH0616024B2 (en) Apparatus and method for measuring hydrogen concentration in water
ES430183A1 (en) Fault indicator
GB1432898A (en) Electrochemical measuring device
Wang et al. Improved methods to determine the electrochemical Peltier heat using a thermistor I: Improved heat-sensor electrodes and lumped-heat-capacity analysis
JPS6212460B2 (en)
US4034286A (en) Device for detecting a failure in an insulation system
SU828026A1 (en) Device for investigation of porous material capillary properties
SU370662A1 (en) METHOD OF MEASUREMENT OF ELECTRICAL RESISTANCE OF ION-EXCHANGE MEMBRANES
SU411551A1 (en)
GB1093080A (en) Alarm device for warning of accumulation of liquid
GB1017937A (en) Hydrogen gauge
GB2004071A (en) Electrical conductivity sensor

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee