US3150797A - Container for storing or transporting liquefied gases at low temperature - Google Patents

Container for storing or transporting liquefied gases at low temperature Download PDF

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Publication number
US3150797A
US3150797A US112029A US11202961A US3150797A US 3150797 A US3150797 A US 3150797A US 112029 A US112029 A US 112029A US 11202961 A US11202961 A US 11202961A US 3150797 A US3150797 A US 3150797A
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US
United States
Prior art keywords
inner tank
keyways
tank
keyway
keys
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
US112029A
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English (en)
Inventor
Yamamoto Katsuro
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.)
Conch International Methane Ltd
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Conch International Methane Ltd
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 Conch International Methane Ltd filed Critical Conch International Methane Ltd
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Publication of US3150797A publication Critical patent/US3150797A/en
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    • 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
    • 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

  • This invention relates to a container for storing or transporting liquefied gases at about atmospheric pressure and at a low temperature, in particular for storing or transporting liquefied natural gas, liqueed methane, liquefied propane or liquefied nitrogen.
  • containers of the above kind having in general a structure comprising a rigid outer shell, heat insulating material adjacent -to the inner surfaces of the rigid outer shell, an inner tank located in the space enclosed by the rigid outer shell, said inner tank being made of a material not losing its strength and ductility at the low temperature of the liquid .and being supported by the heat insulating material adjacent to the bottom wall of the rigid outer shell.
  • the temperature of the liquefied gas in the inner tank is often very low indeed. In the case of liquefied natural gas a-t atmospheric pressure the temperature is for instance as low as minus 160 degrees centigrade. In the case of liquefied nitrogen the temperature is even lower. When in unloaded conditon the inner tank will be at ambient temperature, say plus 20 degrees centigrade.
  • the tempera-ture of the inner tank will vary between ambient temperature and minus 160 degrees centigrade or lower. Consequently the inner tank will contract and expand substantially during normal use.
  • the container according to the invention is characterized in that it comprises keys and keyways extending vertically along the vertical side walls of the inner tank, each key fitting in a corresponding keyway, each key having a length smaller than the length of the corresponding keyway and each key having a width substantially equal to the width of the corresponding keyway.
  • FIGURE 1 is a vertical cross sectional view of a container embodying the invention.
  • FIGURE 2 is a horizontal cross sectional view of the same.
  • FIGURE 3 is a vertical cross sectional view of a container embodying a modified construction according to the invention.
  • FIGURE 4 is a fragmentary vertical cross sectional view showing a modified form of the key and keyway construction according to the invention.
  • FIGURE 5 is a fragmentary horizontal cross sectional view of the same.
  • reference numeral 1 ice designates a rigid outer shell, numeral 2 heat insulating material adjacent to the inner surfaces of the rigid outer shell 1 and numeral 3 an inner tank.
  • the heat insulating material 2 must be of a kind resistant to the low temperatures of the liquid which i-s to be stored in the container. Suitable heat insulating materials are for example balsa wood or quippo. Other suitable heat insulating materials can however also be used.
  • the inner tank 3 is preferably made of a metal not losing its strength and ductility at the very low 4temperatures of the liquid to be stored in the container.
  • Suitable metals are aluminium or stainless steel.
  • the inner tank 3 is provided with keys 4 or 4 extending along the vertical side walls 17 of the inner tank 3.
  • the keys 4 are secured to all the vertical side walls 17 for instance by means of welding.
  • Said keys 4 co-operate with keyways 5 located in the heat insulating material 2.
  • blocks 11 are used. These blocks 11 are made of a strong material having good heat insulating properties such as hardwood.
  • the blocks 11 are firmly secured to the inner surface of the rigid outer shell 1 and the keyway 5 is formed in the block 11.
  • the middle part of each vertical wall 17 is provided with a key 4.
  • Each key 4 ts in the corresponding keyway 5, the width of the key 4 being substantially equal to the width of the corresponding keyway 5 but the length of the key 4 being shorter than the length of the corresponding keyway 5.
  • the inner tank 3 is supported by a bottom layer of heat insulating material 18.
  • the keys 4 and the keyways 5 as shown in FIGURE l are rather short.
  • the keys 4 and the keyways 5 as shown in FIGURE 3 are almost as long as the height of inner tank 3. It will be clear that the length of the keys 4 can be varied at will, provided that the corresponding keyways 5 have a length longer than the length of the keys 4.
  • Each keyway 5 is in close contact with the side surfaces 6 and 7 of the corresponding key 4 whereas clearances 8, 9 and 10 are present respectively between the head of the key 4 and the bottom of the keyway 5, between the upper end of the key 4 and the upper wall of the keyway 5, and between the lower end of the key 4 and the lower wall of the keyway 5. It will thus be understood that the keys 4 will be free to slide in the keyway 5 .in a vertical direction and also to slide Vin the keyway 5 to and away from the bottom of the keyway 5.
  • the inner tank 3 is free to expand and contract in all directions but is held against displacement within the heat insulated outer shell 1. Also tilting of the inner tank 3 is prevented by the keys 4 and the keyways 5.
  • the construction according rto FIGURE 3 is in principle the same as the construction according to FIG- URES 1 and 2 only the keys 4 and the keyways 5 are longer.
  • heat insulating material 2 on the inner sunface of the rigid outer shell 1 can be provided with the keys and that the inner tank 3 can be provided with the corresponding keyways.
  • FIGURES 4 and 5 Such an arrangement is illustrated in FIGURES 4 and 5.
  • a keyway 5 is formed in the vertical side wall 17 of the inner tank 3.
  • a corresponding key 4 is embedded in the heat insulating material 2.
  • the reference numeral 14 designates a -block of hardwood secured to the inner surface of the outer shell 1.
  • the key 4 is secured to the Iblock 14 by means of a bolt 15.
  • the relationship between the key 4 and the keyway 5 is quite the same as that described in connection with FIGURES 1, 2 and 3.
  • the short keys 4 as shown in FIGURE 1 are preferably disposed substantially at the same level as the center of gravity of the inner tank 3. Instead each vertical side wall 17 can be provided with a pair of keys, one key being disposed above and one key being disposed below the center of gravity of the inner tank 3. As shown in FIGURE 3 each vertical sidewall 17 can however also be provided with one long key 4 only.
  • the intertting relationship between the keys 4 or 4 and the respective keyways S or restrains in a perfect manner any displacement of the inner tank 3 resulting from the rocking or tilting of the ship while allowing eX- pansion and contraction of the inner tank 3 not only in horizontal direction but also in a vertical direction.
  • the inner tank 3 is preferably free to contact and expand with changes in temperature.
  • the inner tank 3 is completely thermally insulated from the rigid outer shell 1 or from the ships structure.
  • the container according to the invention is in particular destined for use on a ship. It can however also be used for landstorage or for transport over land.
  • the hull In the case that the container is destined for use on a ship, the hull, or in the case of a double hull ship, the inner hull can be used as the rigid outer shell 1.
  • a container for storing or transporting liquefied gases at about atmospheric pressure and at a very low temperature comprising (a) a rigid outer shell,
  • said inner tank having vertical side walls and a top wall
  • each keyway being sufficiently deep to permit such lateral motion, and being of such Width as to snugly engage the sides of its associated key, and of suicient length to prevent tilting of said inner tank by said snug side engagement.
  • each keyway is formed as a groove in a block of hardwood secured to the rigid outer shell.
  • each keyway is formed as a groove in the heat insulating material adjacent to the inner surface of the rigid outer shell.
  • a container for storing or transporting liquefied gases at about atmospheric pressure and at a low temperature comprising a rigid outer shell, heat insulating material adjacent to the inner surfaces of the rigid outer shell, an inner tank located in the space enclosed by the rigid outer shell, said inner tank being made of a material not losing its strength and ductility at the low temperature of the liquid and being supported by the heat insulat- -ing material adjacent to the bottom wall of the rigid outer shell, keys and keyways extending vertically along the ver-tical side walls of the inner tank each key fitting in a corresponding keyway, each key having a length smaller than the length of the corresponding keyway, a lateral dimension less than the depth of a corresponding keyway, and each key having a width substantially equal to the width of the corresponding keyway, each key being secured to the inner surface of the rigid outer shell and each keyway being formed as a groove in a vertical side wall of the inner tank whereby said keys will be free to slide in the corresponding keyways in a vertical direction and free to slide to and

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US112029A 1960-08-03 1961-05-23 Container for storing or transporting liquefied gases at low temperature Expired - Lifetime US3150797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3348260 1960-08-03

Publications (1)

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US3150797A true US3150797A (en) 1964-09-29

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US (1) US3150797A (en))
DE (1) DE1175254B (en))
GB (1) GB920313A (en))
NL (1) NL267430A (en))

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273740A (en) * 1963-05-07 1966-09-20 Tank for liquefied natural gas and other products stored at low temperatures
US3367492A (en) * 1964-09-03 1968-02-06 Exxon Research Engineering Co Insulation system
US20110070062A1 (en) * 2007-11-20 2011-03-24 Jon Michael Thompson Transport container

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305122A (en) * 1964-09-04 1967-02-21 Exxon Research Engineering Co Keyed cargo container
JPS4914805B1 (en)) * 1970-09-04 1974-04-10
WO2012139599A1 (de) * 2011-04-14 2012-10-18 Nordic Yards Wismar Gmbh Lageranordnung an einem selbsttragenden tank für kalte oder kryogene flüssigkeiten

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US228602A (en) * 1880-06-08 butler
US2306275A (en) * 1940-10-30 1942-12-22 Murray William Self-sealing gas tank for aircraft
US2545686A (en) * 1948-04-21 1951-03-20 Universal Oil Prod Co Internally lined and insulated chamber
US2807143A (en) * 1953-08-07 1957-09-24 Constock Liquid Methane Corp Means for storing and conveying large volumes of cold liquefied hydrocarbons
US2905352A (en) * 1958-06-24 1959-09-22 Constock Int Methane Ltd Storage tank and means for support of same
US2954003A (en) * 1957-01-16 1960-09-27 Conch Int Methane Ltd Means for transportation of low temperature liquids
US2955415A (en) * 1957-11-27 1960-10-11 Theodore M Long Cooled combustion chamber liner and nozzle supported in buckling modes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US228602A (en) * 1880-06-08 butler
US2306275A (en) * 1940-10-30 1942-12-22 Murray William Self-sealing gas tank for aircraft
US2545686A (en) * 1948-04-21 1951-03-20 Universal Oil Prod Co Internally lined and insulated chamber
US2807143A (en) * 1953-08-07 1957-09-24 Constock Liquid Methane Corp Means for storing and conveying large volumes of cold liquefied hydrocarbons
US2954003A (en) * 1957-01-16 1960-09-27 Conch Int Methane Ltd Means for transportation of low temperature liquids
US2955415A (en) * 1957-11-27 1960-10-11 Theodore M Long Cooled combustion chamber liner and nozzle supported in buckling modes
US2905352A (en) * 1958-06-24 1959-09-22 Constock Int Methane Ltd Storage tank and means for support of same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273740A (en) * 1963-05-07 1966-09-20 Tank for liquefied natural gas and other products stored at low temperatures
US3367492A (en) * 1964-09-03 1968-02-06 Exxon Research Engineering Co Insulation system
US20110070062A1 (en) * 2007-11-20 2011-03-24 Jon Michael Thompson Transport container

Also Published As

Publication number Publication date
NL267430A (en))
DE1175254B (de) 1964-08-06
GB920313A (en) 1963-03-06

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