US3305122A - Keyed cargo container - Google Patents

Keyed cargo container Download PDF

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Publication number
US3305122A
US3305122A US394533A US39453364A US3305122A US 3305122 A US3305122 A US 3305122A US 394533 A US394533 A US 394533A US 39453364 A US39453364 A US 39453364A US 3305122 A US3305122 A US 3305122A
Authority
US
United States
Prior art keywords
keyway
key
tank
width
bearing blocks
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 - Lifetime
Application number
US394533A
Other languages
English (en)
Inventor
Gordon R Pringle
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to US394533A priority Critical patent/US3305122A/en
Priority to GB36906/65A priority patent/GB1097147A/en
Priority to DEE29991A priority patent/DE1265172B/de
Priority to NL6511473A priority patent/NL6511473A/xx
Priority to NO159593A priority patent/NO116763B/no
Priority to SE11508/65D priority patent/SE320397B/xx
Priority to FR30352A priority patent/FR1459050A/fr
Priority to ES0317131A priority patent/ES317131A1/es
Application granted granted Critical
Publication of US3305122A publication Critical patent/US3305122A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F17C13/08—Mounting arrangements for vessels
    • F17C13/082—Mounting arrangements for vessels for large sea-borne storage vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • 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
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/901—Liquified gas content, cryogenic

Definitions

  • FIG. 5 G. R. PRINGLE KEYED CARGO CONTAINER Feb. 2l, 1967 Filed Sept. 4, 1964 FIG. 5
  • the present invention relates to storage containers and more particularly to insulated tanks used in the storage and shipment of liquefied gas cargoes at atmospheric pressure and at cryogenic temperatures in tankers and the like.
  • containers designed for the purpose of storing liqueed gases have included a large inner tank, fabricated from a material such as aluminum or stainless steel, which retains its strength and ductility at the eX- tremely low temperatures involved, and an enveloping insulated chamber supporting the tank.
  • eX- pedient for the support of such a cargo tank employs keys and keyways to secure the tank to its supporting structure while accommoda-ting contraction of the tank due to the severe temperature changes encountered in normal use.
  • a storage system for a liquid gas cargo incorporates new and improved key and keyway arrangements, characterized by the use of special intermediate heat insulating bearing blocks, between the key and the keyway, as an integral part of the supporting system.
  • the fit of the key and keyway is maintained substantially uniform under all conditions of expansion and contraction of the tank.
  • the dimensions of the key, keyway and intermediate insulating bearing blocks are proportioned and displaced such that the bearing 'blocks are maintained in uniform contact with both the key and keyway throughout the entire range lof temperatures to which the cargo container 4is -to be subjected.
  • Optimum performance of the supporting system is insured by the uniform fit of the key and keyway at all temperatures.
  • FIG. 1 is a side elevational View of a liquefied gas tanker embodying the container system of the invention
  • FIG. 2 is a plan View of the tanker of FIG. l.
  • FIG. 3 is an enlarged, fragmentary, cross-sectional view of an insulated, keyed supporting system embodying the principles of the present invention, taken along line 3 3 of FIG. 1.
  • the improved cargo container system of the present invention is generally indicated by the reference numeral and is typically included as part of the structure of a seagoing vessel such as a tanker 11.
  • the container system includes an inner tank 12, which may be conventionally filled with a cargo of liquefied gas, such as liquefied methane, through a dome 13 on the deck of the tanker.
  • the tank 12, which is constructed from a material such as aluminum or stainless steel and possesses adequate strength to withstand the internal stresses induced by the cold cargoes, is shaped to be housed generally within the cargo hold 14 of the Ship 11 or within an equivalent supporting struc- ICC ture.
  • the cargo hold itself is completely clad with suitable thermal insulation 20, such as balsa wood, urethane foam or the like, and as shown in FIG. 3, vertical keyways 15 are formed on each of the vertical walls 16 of the tank 12 by elongate jaw member 17.
  • the keyways are disposed along the major planes of the tank 12 which pass through the center of gravity of the tank, as shown in FIGS. l and 2.
  • the keyways 15 of the tank 12 are positively keyed to the supporting cargo hold structure 14, at all temperatures and under all conditions ⁇ of expansion and contraction, by means of elongate key members 19 formed thereon and intermediate insulating bearing blocks 21 which, along wtih a tapered insulating block 26, form an insulating key generally designated lby reference numeral 25.
  • the insulating bearing blocks 21 are secured by adhesive or other suitable means to the side walls of the key member 19 and form an effectively integral part thereof.
  • the tapered thermal insulating blocks 26 are constructed of similar material to that used in cladding the cargo hold and are secured to the keys 19 by adhesive or other suitable means to become an effectively integral part thereof.
  • the insulating plastic bearing blocks 21, which are fabricated fram suitable insulating bearing material such as a composite mixture of urethane foam, Fiberglas, and resin, are disposed and arranged between the jaws 17 and the key members 19 for bearing contact therewith throughout Ithe range of temperatures to which the tank is to be subjected (normal ambient temperature to as low as -435 F. for a cargo of liquid hydrogen).
  • the key member 19 is an integral part of the hull structure of a ship, sufficient thermal insulation therefor must be provided to maintain it at ambient temperature to prevent undue cracking stresses to be induced therein. Consequently, the key 19;, when properly thermally insulated, will tbe unaffected by the temperatures of the cargo and its width will be constant or fixed. However, the tank 12 will be subject to great temperature changes and to relatively large amounts of shrinkage causing the separation and contraction of the jaw members 17 and the keyway 15 defined thereby. Therefore, it is necessary to provide bearing blocks of sufficient width to accommodate this movement, as well as to provide sufficient insulation of the key 19 to prevent the cooling and possible cracking of the hull structure.
  • Wk width of the key member 19 Wt--width of the keyway 15 formed between the jaws 17 on the tank 3
  • a coeicient of expansion of the insulating bearing material
  • the coetlicient of expansion of the bearing block must be at least about 2.25 times greater than the coetiicient of the expansion of the tank material. Therefore, the width of the key member 19 must be at least one-fourth (0.25) the Width of the insulating bearing block and the width of the keyway 1S must be at least about two and one-fourth (2.25) times the width of each insulating block.
  • the width of the keyway 15, defined by the distance between the inner faces 26 of the jaw members 17, is specically proportioned in relation to the Width of the insulating bearing blocks 21, the Width of the key member 19, and the respective coeicients of expansion of the insulating material and the tank material to ensure that the fit of the effectively insulated keys 25 is substantially uniform Within the keyways at all temperatures, i.e., that positive bearing contact of the insulating blocks 21 is maintained with the keyways 15 at all temperatures and under all conditions of expansion and contraction of the tank 12 as well as the supporting structure.
  • a cargo container system for liquefied gases at cryogenic temperatures including an inner rigid tank supported Within an outer supporting structure by a key and keyway arrangement the improvement in which (a) said keyway -is of substantially greater widththan said key and defines predetermined gaps therebetween,
  • a container system for cryogenic cargoes comprising (a) an external supporting structure,
  • said insulating means including plastic bearing blocks disposed in said keyways and in bearing contact with said key members at all temperatures, said plastic bearing blocks each having a width equal to the width of said keyway multiplied Iby the coeicient of thermal expansion of the material from which said keyway is fabricated divided by the thermal expansion of the material from which said bearing blocks are fabricated.
  • a container system in accordance with claim 2 in which (a) said plastic bearing material is a composite mixture of urethane foam, Fiberglas, and resin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
US394533A 1964-09-04 1964-09-04 Keyed cargo container Expired - Lifetime US3305122A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US394533A US3305122A (en) 1964-09-04 1964-09-04 Keyed cargo container
GB36906/65A GB1097147A (en) 1964-09-04 1965-08-27 Liquefied gas containers
DEE29991A DE1265172B (de) 1964-09-04 1965-08-28 Einrichtung zum Lagern und Transportieren tiefsiedender verfluessigter Gase
NL6511473A NL6511473A (enrdf_load_stackoverflow) 1964-09-04 1965-09-02
NO159593A NO116763B (enrdf_load_stackoverflow) 1964-09-04 1965-09-03
SE11508/65D SE320397B (enrdf_load_stackoverflow) 1964-09-04 1965-09-03
FR30352A FR1459050A (fr) 1964-09-04 1965-09-03 Container de cargaison arrimé par clavetage
ES0317131A ES317131A1 (es) 1964-09-04 1965-09-04 Perfeccionamientos en la construccion de depositos para el transporte maritimo de gases licuados.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US394533A US3305122A (en) 1964-09-04 1964-09-04 Keyed cargo container

Publications (1)

Publication Number Publication Date
US3305122A true US3305122A (en) 1967-02-21

Family

ID=23559353

Family Applications (1)

Application Number Title Priority Date Filing Date
US394533A Expired - Lifetime US3305122A (en) 1964-09-04 1964-09-04 Keyed cargo container

Country Status (8)

Country Link
US (1) US3305122A (enrdf_load_stackoverflow)
DE (1) DE1265172B (enrdf_load_stackoverflow)
ES (1) ES317131A1 (enrdf_load_stackoverflow)
FR (1) FR1459050A (enrdf_load_stackoverflow)
GB (1) GB1097147A (enrdf_load_stackoverflow)
NL (1) NL6511473A (enrdf_load_stackoverflow)
NO (1) NO116763B (enrdf_load_stackoverflow)
SE (1) SE320397B (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425583A (en) * 1966-09-07 1969-02-04 Mcmullen John J Arrangement for keying liquefied gas storage tanks within a transport vessel
US3495732A (en) * 1967-07-28 1970-02-17 Exxon Research Engineering Co Insulated cryogenic tank
US3830396A (en) * 1970-10-14 1974-08-20 Conch Int Methane Ltd Containers for liquefied gases
US4156492A (en) * 1977-06-27 1979-05-29 Lox Equipment Company Vessel support apparatus
AU646470B2 (en) * 1991-06-21 1994-02-24 Csd International B.V. Vehicle/vessel
US20130048642A1 (en) * 2009-10-29 2013-02-28 Aker Engineering & Technology As Supports for tanks
DE102014203351A1 (de) * 2014-02-25 2015-08-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Auflager zur Lagerung und zur thermischen Isolation von Fluidtanks
CN105121269A (zh) * 2013-04-12 2015-12-02 森元信吉 Lng船或lpg船

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311990A1 (fr) * 1975-05-22 1976-12-17 Gaz Transport Moyen de transport a cuve auto-porteuse de revolution, en particulier pour le transport d'un fluide a basse temperature
EP2697553B1 (de) * 2011-04-14 2015-08-12 Nordic Yards Wismar GmbH Lageranordnung an einem selbsttragenden tank für kalte oder kryogene flüssigkeiten
DE102021102749B4 (de) * 2021-02-05 2025-05-28 Deutsche Holzveredelung Schmeing GmbH & Co. KG Lagerblock zur Lagerung eines Tanks für kryogene Flüssigkeiten und Verfahren zur Herstellung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614856A (en) * 1950-05-04 1952-10-21 Trailmobile Inc Insulated tank vehicle
US2823822A (en) * 1955-10-10 1958-02-18 Aro Equipment Corp Vacuum bottle
US2896416A (en) * 1957-08-05 1959-07-28 Constock Int Methane Ltd Means for the transportation and storage of cold boiling liquefied hydrocarbon gas
US2905352A (en) * 1958-06-24 1959-09-22 Constock Int Methane Ltd Storage tank and means for support of same
US3064612A (en) * 1960-10-20 1962-11-20 Maryland Shipbuilding And Dryd Carrier constructions for bulk fluids
US3095107A (en) * 1961-03-16 1963-06-25 Conch Int Methane Ltd Stabilization means for storage tanks

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1230091A (fr) * 1959-06-02 1960-09-13 Anciens Chantiers Dubigeon Sa Procédés pour assurer l'installation à bord d'un navire, de réservoirs contenantdes hydrocarbures liquéfiés à basse température
DE1111050B (de) * 1959-09-05 1961-07-13 Kieler Howaldtswerke Ag Abstuetzung von Behaeltern fuer den Transport fluessiger Gase in dem isolierten Laderaum eines Schiffes
NL267430A (enrdf_load_stackoverflow) * 1960-08-03

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614856A (en) * 1950-05-04 1952-10-21 Trailmobile Inc Insulated tank vehicle
US2823822A (en) * 1955-10-10 1958-02-18 Aro Equipment Corp Vacuum bottle
US2896416A (en) * 1957-08-05 1959-07-28 Constock Int Methane Ltd Means for the transportation and storage of cold boiling liquefied hydrocarbon gas
US2905352A (en) * 1958-06-24 1959-09-22 Constock Int Methane Ltd Storage tank and means for support of same
US3064612A (en) * 1960-10-20 1962-11-20 Maryland Shipbuilding And Dryd Carrier constructions for bulk fluids
US3095107A (en) * 1961-03-16 1963-06-25 Conch Int Methane Ltd Stabilization means for storage tanks

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425583A (en) * 1966-09-07 1969-02-04 Mcmullen John J Arrangement for keying liquefied gas storage tanks within a transport vessel
US3428205A (en) * 1966-09-07 1969-02-18 Mcmullen John J Arrangement for maintaining alignment of cold tanks within a ship or the like
US3495732A (en) * 1967-07-28 1970-02-17 Exxon Research Engineering Co Insulated cryogenic tank
US3830396A (en) * 1970-10-14 1974-08-20 Conch Int Methane Ltd Containers for liquefied gases
US4156492A (en) * 1977-06-27 1979-05-29 Lox Equipment Company Vessel support apparatus
AU646470B2 (en) * 1991-06-21 1994-02-24 Csd International B.V. Vehicle/vessel
US20130048642A1 (en) * 2009-10-29 2013-02-28 Aker Engineering & Technology As Supports for tanks
US8708185B2 (en) * 2009-10-29 2014-04-29 Aker Engineering & Technology As Supports for tanks
CN105121269A (zh) * 2013-04-12 2015-12-02 森元信吉 Lng船或lpg船
US20160031531A1 (en) * 2013-04-12 2016-02-04 Nobuyoshi Morimoto LNG Ship or LPG Ship
RU2658192C2 (ru) * 2013-04-12 2018-06-19 Нобуеси Моримото Судно для спг или снг
DE102014203351A1 (de) * 2014-02-25 2015-08-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Auflager zur Lagerung und zur thermischen Isolation von Fluidtanks
DE102014203351B4 (de) * 2014-02-25 2017-10-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Auflager zur Lagerung und zur thermischen Isolation von Fluidtanks

Also Published As

Publication number Publication date
FR1459050A (fr) 1966-04-29
GB1097147A (en) 1967-12-29
DE1265172B (de) 1968-04-04
NL6511473A (enrdf_load_stackoverflow) 1966-03-07
ES317131A1 (es) 1966-07-16
NO116763B (enrdf_load_stackoverflow) 1969-05-19
SE320397B (enrdf_load_stackoverflow) 1970-02-09

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