FR2294439A1 - Testing inaccessible thermal barrier in liquified gas tank - thermographic camera measures thermal differences in pressure gradient - Google Patents

Testing inaccessible thermal barrier in liquified gas tank - thermographic camera measures thermal differences in pressure gradient

Info

Publication number
FR2294439A1
FR2294439A1 FR7441238A FR7441238A FR2294439A1 FR 2294439 A1 FR2294439 A1 FR 2294439A1 FR 7441238 A FR7441238 A FR 7441238A FR 7441238 A FR7441238 A FR 7441238A FR 2294439 A1 FR2294439 A1 FR 2294439A1
Authority
FR
France
Prior art keywords
barrier
thermal
inaccessible
pressure gradient
liquified gas
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
FR7441238A
Other languages
French (fr)
Other versions
FR2294439B1 (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.)
Technigaz
Original Assignee
Technigaz
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 Technigaz filed Critical Technigaz
Priority to FR7441238A priority Critical patent/FR2294439A1/en
Priority to FR7515052A priority patent/FR2311292A2/en
Publication of FR2294439A1 publication Critical patent/FR2294439A1/en
Application granted granted Critical
Publication of FR2294439B1 publication Critical patent/FR2294439B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0157—Polygonal
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • 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
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0631—Temperature
    • 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
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/038—Detecting leaked fluid

Abstract

Liquified gas or hydrocarbons is stored at low temperatures in fixed installations or on ships. The containers have an inaccessible thermally isolating barrier between inner and outer container shells. This barrier is tested by measuring temperature gradient when a pressure gradient is present. A container (C) in a ship (9) has a thermal isolating barrier (A) of a cellular synthetic resin between an outer shell (C) and an inner shell (B). Spaces between the outer shell and barrier are filled with fibreglass wool. Heat is applied to both sides by elements (3, 4, 5, 6) connected to regulators to maintain constant the internal temperature (T2) while atmospheric pressure is present in the space(e1) outside the barrier and a vacuum is present on the inner surface (e2). A thermographic camera (7) is employed to indicate any thermal leakage.
FR7441238A 1974-12-13 1974-12-13 Testing inaccessible thermal barrier in liquified gas tank - thermographic camera measures thermal differences in pressure gradient Granted FR2294439A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7441238A FR2294439A1 (en) 1974-12-13 1974-12-13 Testing inaccessible thermal barrier in liquified gas tank - thermographic camera measures thermal differences in pressure gradient
FR7515052A FR2311292A2 (en) 1974-12-13 1975-05-14 Detecting leaks in an inaccessible wall - by creating and measuring a leak-induced temp. gradient on an accessible surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7441238A FR2294439A1 (en) 1974-12-13 1974-12-13 Testing inaccessible thermal barrier in liquified gas tank - thermographic camera measures thermal differences in pressure gradient

Publications (2)

Publication Number Publication Date
FR2294439A1 true FR2294439A1 (en) 1976-07-09
FR2294439B1 FR2294439B1 (en) 1978-11-24

Family

ID=9146168

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7441238A Granted FR2294439A1 (en) 1974-12-13 1974-12-13 Testing inaccessible thermal barrier in liquified gas tank - thermographic camera measures thermal differences in pressure gradient

Country Status (1)

Country Link
FR (1) FR2294439A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016656A1 (en) * 1979-03-24 1980-10-01 Bl Cars Limited Testing vehicle seals
FR2515347A1 (en) * 1981-10-26 1983-04-29 Nguyen Tan Chuong Crack detection, esp. in wall of tanker ship carrying liq. methane - where gases are fed through cavities in wall while telemeter makes thermal and gamma ray maps of wall
FR2531516A1 (en) * 1982-08-03 1984-02-10 Applied Thermodynamics Lng Ser LOW TEMPERATURE LIQUEFIED GAS TANK COMPRISING A SECONDARY BARRIER AND METHOD OF DETECTING THE POSSIBLE LEAKAGE OF THE SECONDARY BARRIER
WO2010139914A1 (en) * 2009-06-05 2010-12-09 Gaztransport Et Technigaz Multi-membrane reservoir sealing test
FR2952715A1 (en) * 2009-11-13 2011-05-20 Gaztransp Et Technigaz Method for locating leakages of tank e.g. liquefied natural gas or methane tank, involves generating depression in space with respect to interior of tank, applying liquid film on front face of membrane, and detecting cold points of membrane
FR2960640A1 (en) * 2010-06-01 2011-12-02 Gaztransp Et Technigaz TEST OF SEALING OF A RESERVOIR IN RELATION TO A GAS HAVING AN INFRARED SIGNATURE
WO2020128370A1 (en) 2018-12-21 2020-06-25 Gaztransport Et Technigaz Method for checking the leakproofness of a leakproof and thermally insulating tank for storing a fluid
CN116557793A (en) * 2023-07-10 2023-08-08 中建安装集团有限公司 System and method for monitoring running state of heat supply pipeline integrating pressure sensing and temperature sensing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU65328A1 (en) * 1972-05-09 1973-11-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU65328A1 (en) * 1972-05-09 1973-11-22

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016656A1 (en) * 1979-03-24 1980-10-01 Bl Cars Limited Testing vehicle seals
FR2515347A1 (en) * 1981-10-26 1983-04-29 Nguyen Tan Chuong Crack detection, esp. in wall of tanker ship carrying liq. methane - where gases are fed through cavities in wall while telemeter makes thermal and gamma ray maps of wall
FR2531516A1 (en) * 1982-08-03 1984-02-10 Applied Thermodynamics Lng Ser LOW TEMPERATURE LIQUEFIED GAS TANK COMPRISING A SECONDARY BARRIER AND METHOD OF DETECTING THE POSSIBLE LEAKAGE OF THE SECONDARY BARRIER
EP0102865A1 (en) * 1982-08-03 1984-03-14 APPLIED THERMODYNAMICS & L.N.G. SERVICE Société à Responsabilité Limiteé de droit français Liquefied gas reservoir provided with a secondary barrier leak detecting device, and the leak detecting process
US4498304A (en) * 1982-08-03 1985-02-12 Gaz De France Storage tank for cryogenic liquefied gas
CN102460103A (en) * 2009-06-05 2012-05-16 天然气运输和科技公司 Multi-membrane reservoir sealing test
WO2010139914A1 (en) * 2009-06-05 2010-12-09 Gaztransport Et Technigaz Multi-membrane reservoir sealing test
FR2946428A1 (en) * 2009-06-05 2010-12-10 Gaztransp Et Technigaz TEST FOR SEALING A MULTI-MEMBRANE TANK
CN102460103B (en) * 2009-06-05 2015-09-30 天然气运输和科技公司 The leakage detection method of a kind of multimembrane cabin body
FR2952715A1 (en) * 2009-11-13 2011-05-20 Gaztransp Et Technigaz Method for locating leakages of tank e.g. liquefied natural gas or methane tank, involves generating depression in space with respect to interior of tank, applying liquid film on front face of membrane, and detecting cold points of membrane
FR2960640A1 (en) * 2010-06-01 2011-12-02 Gaztransp Et Technigaz TEST OF SEALING OF A RESERVOIR IN RELATION TO A GAS HAVING AN INFRARED SIGNATURE
WO2011151564A1 (en) * 2010-06-01 2011-12-08 Gaztransport Et Technigaz Test of leaktightness of a tank with respect to a gas exhibiting an infrared signature
WO2020128370A1 (en) 2018-12-21 2020-06-25 Gaztransport Et Technigaz Method for checking the leakproofness of a leakproof and thermally insulating tank for storing a fluid
FR3090872A1 (en) 2018-12-21 2020-06-26 Gaztransport Et Technigaz Method for checking the tightness of a sealed and thermally insulating tank for storing a fluid
CN113227744A (en) * 2018-12-21 2021-08-06 气体运输技术公司 Method for checking the leak-tightness of a leak-proof and thermally insulated tank for storing a fluid
CN113227744B (en) * 2018-12-21 2023-12-12 气体运输技术公司 Method for checking the leak-tightness of a leak-proof and thermally insulated tank for storing a fluid
CN116557793A (en) * 2023-07-10 2023-08-08 中建安装集团有限公司 System and method for monitoring running state of heat supply pipeline integrating pressure sensing and temperature sensing
CN116557793B (en) * 2023-07-10 2023-12-05 中建安装集团有限公司 System and method for monitoring running state of heat supply pipeline integrating pressure sensing and temperature sensing

Also Published As

Publication number Publication date
FR2294439B1 (en) 1978-11-24

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