• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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  • 优先权
    • 专利摘要:
    1451679 Leak-detecting means in cryogenic tanks MITSUBISHI JUKOGYO KK 21 June 1974 [21 June 1973] 27768/74 Heading F4P [Also in Division G1] A cryogenic tank with crack detection means comprises a primary impermeable layer 3 spaced inwardly of the tank shell 1, a secondary impermeable layer 4 between layer 3 and shell 1, gas permeable layers 5, 6 adjacent opposite sides of layer 4, and heat insulation layers 2a, 2b between layers 5, 6 and layer 3 and shell 1 respectively, each gas permeable layer 5, 6 being provided with a respective pump 11, 12 and respective gas analysing device 13, 14 whereby cracks CI, CII, CIII in layers 2a, 4, 2b can be detected. If a predetermined vacuum is created in layer 6 by pump 12, then if the vacuum is maintained no cracks such as CII, CIII exist, but if the vacuum is not maintained then either a crack CII and/or a crack CIII exists. A small quantity of freon is introduced into layer 5 by pump 11 and if freon is detected by analyser 14 connected to layer 6, then the presence of crack CII is established. Normally, a nitrogen gas can be circulated through layers 5, 6 so that any stored liqufiied gas that leaks through layers 3, 2a via crack CI can be detected by analyser 13. The precise construction of the layers is shown in Fig. 3, where layer 4 is shown as a laminate comprising two impermeable sheets 4a, 4b with respective adhesive layers 4c, 4d between the sheets and the adjacent layers 5, 6. Layers 4c, 4d are provided with transverse walls 7, 8 which span layers 5, 6 to divide the same into compartments connected by pipes 9, 10 in walls 7, 8. MATERIALS: The shell 1 may be of steel, and primary impermeable layer 3 may be a laminated material of aluminium and polyester resin, or a reinforced plastics of polyurethane resin, silicone resin, epoxy resin or tetrafluoride resin with glass, carbon or vegetable fibres. The insulating layers 2a, 2b may be polyurethane foam, PVC foam, polystyrene foam or polyethylene foam, and foamed glass, concrete or wood may also be used. The gas permeable layers may be soft polyurethane, rock fibres, porous synthetic resin or sintered material.
    公开号:SU818500A3
    申请号:SU742040412
    申请日:1974-06-21
    公开日:1981-03-30
    发明作者:Кацута Кихеи
    申请人:Мицубиси Дзюкогио Кабусикикайся (Фирма)；
    IPC主号:
    专利说明:

    (54) TANK FOR STORAGE OF LOW-TEMPERATURE FLUID
    The invention relates to tanks, the storage of low-temperature liquids used in chemical industry and in transport. A known storage tank for a low-temperature liquid containing an external power shell, a thermal insulation layer separated by a hermetic shell, on both sides of which gas permeable layers i are placed. A disadvantage of the known construction is the low radial rigidity of the gas permeable layers due to what is possible their shrinkage under the internal pressure of the working medium in the tank, which makes it difficult to control the tightness of the shell and reflects on the safety of the reservoir. The purpose of the invention is to increase the safety of tank operation. The goal is achieved by the fact that the gas-permeable layers are provided with partitions with channels formed in them. In Fig. - 1 shows the wall of the tank, the section; in fig. 2 — node 1 in FIG. one, . The tank consists of an external power shell 1, layers 2 and 3 of thermal insulation, sealing shells 4 and 5, and gas-permeable layers 6 and 7, in the co-; The partitions 8 and 9 are installed. The partitions 8 and 9 are provided with channels 10. The sealing shell 5 is made of cold-resistant material and the sealing shell 4 consists of a layer of polyester synthetic resin 11 and a layer of aluminum foil 12 laid on each other. Partitions 8 and 9 can be made of polyester synthetic resin or other material. When the tightness of the shell 5 is impaired, the working medium penetrates into the gas-permeable layer 7 and through the channels 10 enters the gas analyzer, which signals a violation of the tightness of the shell 5. If the tightness of the shell 4 is broken, the working medium enters the gas analyzer. Partitions 8 and 9 increase the radial rigidity of the gas-permeable layer, which weakens the influence of the pressure of the working medium in the reservoir on its porosity.
    权利要求:
    Claims (1)
    [1]
    1. Patent OPA 3489311, class, 220-9, published. 1970.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU818500A3|1981-03-30|Tank for storing low-temperature liquid
    US3489311A|1970-01-13|Tanks for storage of liquefied gas
    US3993213A|1976-11-23|Thermally insulated cryogenic container
    US4023617A|1977-05-17|Construction having integral circulatory system
    US3814275A|1974-06-04|Cryogenic storage vessel
    KR940011618B1|1994-12-22|Improvements in or relating to a heat insulating wall structure for a fluid-tight tank
    KR100258206B1|2000-06-01|Prefabricated structure for forming fluid-tight and thermo-insulated wall for very low temperature fluid confinement container
    CN107257900B|2019-12-24|Insulating block suitable for forming an insulating wall in a sealing groove
    US5246759A|1993-09-21|Heat insulating system
    US3655086A|1972-04-11|Receptacles for the storage of liquefied gases at cryogenic temperatures
    US2859895A|1958-11-11|Insulating tank for cold boiling liquids
    US3158459A|1964-11-24|Self-discharging container for conveying and storing low temperature fluids or othermaterials
    SU1077582A3|1984-02-29|Tank for low-temperature liquids
    US3095014A|1963-06-25|Stave secured sectional insulated conduit
    EP0184415A1|1986-06-11|Evacuated heat insulation unit
    ES315707A1|1966-04-16|Thermally insulated container for a liquiefied gas
    US3365897A|1968-01-30|Cryogenic thermal insulation
    GB1440291A|1976-06-23|Storage tanks of the internal heat insulation type
    CA2500121A1|2004-04-08|Lightweight cryogenic-compatible pressure vessels for vehicular fuel storage
    JPS56500665A|1981-05-14|
    US3547301A|1970-12-15|Tanker for liquefied gases
    KR20160146667A|2016-12-21|Sealed and insulating vessel comprising a deflection element allowing the flow of gas at a corner
    CN111164343B|2022-03-04|Sealed and insulated container with convection resistant fill panels
    US3167933A|1965-02-02|Cryogenic storage apparatus
    US4098265A|1978-07-04|Solar energy collector
    同族专利:
    公开号 | 公开日
    NL7408424A|1974-12-24|
    IT1015247B|1977-05-10|
    FR2234513A1|1975-01-17|
    SE7407876L|1974-12-23|
    JPS5020317A|1975-03-04|
    US3921438A|1975-11-25|
    SE406635B|1979-02-19|
    GB1451679A|1976-10-06|
    NL157409B|1978-07-17|
    DK332974A|1975-02-17|
    NO742249L|1975-01-20|
    ES427668A1|1976-09-01|
    BE816654A|1974-10-16|
    NO136504C|1977-09-14|
    FR2234513B1|1976-12-24|
    NO136504B|1977-06-06|
    CA1005374A|1977-02-15|
    DE2429873A1|1975-01-16|
    DE2429873B2|1976-11-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3364729A|1966-10-27|1968-01-23|Mcmullen John J|Leak detection system and method for cold liquid storage tanks|
    US3444725A|1967-04-06|1969-05-20|Stone & Webster Eng Corp|Leak detecting and locating system for nuclear reactor containment vessels|
    US3489311A|1967-05-25|1970-01-13|Aerojet General Co|Tanks for storage of liquefied gas|
    US3757982A|1971-06-11|1973-09-11|North American Rockwell|Thermally insulated container|US4105819A|1975-03-04|1978-08-08|Technigaz|Laminated sheets particularly for cryogenic enclosures, pipes, and the like|
    US4050609A|1976-09-13|1977-09-27|Hitachi Shipbuilding & Engineering Co.|Heat insulating device for low temperature liquified gas storage tanks|
    CA1135977A|1979-05-29|1982-11-23|Michael H. Collins|System for detecting cracks in theheat-insulating lining of a containerfor liquefied gas|
    US4404843A|1981-07-20|1983-09-20|Marathon Oil Company|Cryogenic storage tank leak detection system|
    US4748847A|1987-05-26|1988-06-07|Sheahan James P|Non-electrical leak detection method|
    US5167352A|1988-03-21|1992-12-01|Robbins Howard J|Double wall tank system|
    US4986112A|1988-11-02|1991-01-22|Atomic Energy Of Canada Ltd.|Composite pressure vessel for a nuclear environment|
    FI20065411A|2006-06-16|2007-12-17|Aker Mtw Werft Gmbh|Method and arrangement for monitoring and identifying container leaks|
    FR2910965B1|2006-12-27|2009-04-03|Aker Yards S A Sa|METHOD FOR MEASURING THE REAL POROSITY OF THE SEAL BARRIER OF A FLUID CONTAINMENT TANK|
    US20090026212A1|2007-07-25|2009-01-29|Robbins Jess A|Underground storage tank for flammable liquids|
    FI124835B|2012-07-03|2015-02-13|Lngtainer Ltd|Tank|
    DE102014214833A1|2014-07-29|2016-02-04|BSH Hausgeräte GmbH|Isolation device, door and household cooker|
    EP3196533A1|2016-01-25|2017-07-26|Plastic Omnium Advanced Innovation and Research|Leakage detection system for pressure vessel|
    FR3079301B1|2018-03-21|2020-10-30|Gaztransport Et Technigaz|METHOD FOR DIFFUSION OF A TRACE GAS AND METHOD FOR TESTING THE TIGHTNESS OF A MEMBRANE|
    CN109630866B|2018-12-27|2020-07-31|重庆市潼南区金盛气体有限公司|Liquid nitrogen storage jar with vapour-pressure type safety protection function|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP48070212A|JPS5020317A|1973-06-21|1973-06-21|
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