US3677021A - Tank construction for liquified and/or compressed gas - Google Patents

Tank construction for liquified and/or compressed gas Download PDF

Info

Publication number
US3677021A
US3677021A US81102A US3677021DA US3677021A US 3677021 A US3677021 A US 3677021A US 81102 A US81102 A US 81102A US 3677021D A US3677021D A US 3677021DA US 3677021 A US3677021 A US 3677021A
Authority
US
United States
Prior art keywords
tank
support member
cargo
annular
support
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
US81102A
Other languages
English (en)
Inventor
Ragnar Bognaes
Olav Solberg
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.)
Kvaerner Brug AS
Original Assignee
Kvaerner Brug AS
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 Kvaerner Brug AS filed Critical Kvaerner Brug AS
Application granted granted Critical
Publication of US3677021A publication Critical patent/US3677021A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • 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
    • F17C2201/0128—Shape spherical or elliptical
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/018—Supporting feet
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/037—Containing pollutant, e.g. H2S, Cl
    • 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
    • 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

  • ABSTRACT In a marine vessel for transporting or storing a cargo tank adapted to contain liquified and/or compressed gas which tank is mounted on supporting structure connected to the hull of the vessel, the tank has a peripheral integral interface structure such that the exterior periphery of the interface structure extends beyond the periphery of adjacent portions of the tank to define an extension member which is adapted to be rigidly secured to the tank support structure.
  • SHEET 2 [IF 3 INVENTORS Ragnar Bognaes BY Olav Solberg ATTORNEYS PATENTEU JUL! 8 m2
  • SHEET 3 [IF 3 INVENTORS Ragnar Bognaes BY Olov Solberg MZi'g/MMm's a ATTORNEYS TANK CONSTRUCTION FOR LIQUIFIED AND/OR COMPRESSED GAS
  • liquified gas liquified and/or compressed gas
  • liquified natural gas as for example, liquified methane at -260F
  • problems arise from various sources, and in particular form the static and dynamic movements, deflections, and deformations of the vessel structure in response to cargo loading and wind and wave forces, as well as from stresses produced by the extreme temperature variations in the tank during loading and unloading, which extremes cause severe thermal expansions and contractions of the tank structure.
  • the various stresses produced by these forces are transmitted between the vessel hull structure and the tank through the supporting system for the tank.
  • liquified gas on a vessel include the so-called integrated" or membrane tank structure wherein the cargo tank is constructed of light or thin material not intended to be loaded appreciably in its own plane, and which contains the cargo by transmitting the cargo ressure normally (perpendicular to the membrane) to the hull structure.
  • Such tank structures are double walled (primary cargo barrier plus secondary barrier) cargo containing systems.
  • Still other liquified gas containment systems are such that the secondary or emergency backup cargo tank is made an integral part of the ship hull itself and the primary cargo tank is independent of the ship's hull, but supported by the hull.
  • liquified gas containment systems discussed thus far are made up of a primary barrier (or cargo tank which contains the lading during normal operating conditions) and a secondary barrier, external to the primary barrier.
  • the secondary barrier is provided and designed so that it should be able to safely contain the contents of the primary barrier in the event of failure of the primary barrier, thus protecting the ships hull from brittle fracture.
  • Such dual systems are difficult to build and require inordinate amounts of time spent at the building dock or way to accommodate the tank construction.
  • variations in the mounting structures and the specific dimensions and the various mounting connections cause eccentric and uneven forces to be applied to the tank, thereby producing undesirable stress concentration therein. These stresses substantially increase the dangers of structural failure of the tank.
  • the concentrated stresses are generally located at an interface between the tank and the support structure, and the generally eccentric connections between the tank and the supporting structure result in uneven forces applied to the tank and in uneven areas of stress concentrations within the tank wall. Because of these stress concentrations a leak or puncture in the tank wall may well result in immediate catastrophic failure of the tank. If the cargo being carried is liquified gas, such a failure would release the liquid into the hull, causing an almost immediate brittle failure of the hull structure, were it not for the presence of the secondary barrier which contains the leakage and protects the hull.
  • Another object of the invention is to transport liquified gas in a single walled pressure vessel type tank, without the need for a liquid containing secondary barrier, but with a liquid deflecting thermal spray shield.
  • Another object of the invention is to predetermine the stresses to which all parts of a cargo tank for liquified gas are subjected during all service conditions and modes of operation.
  • Yet another object of the invention is to minimize stress concentrations within the walls of the cargo tank.
  • Another object of the invention is to predetermine the probability of occurence of, the maximum size of, and the growth rate of defects or flaws, such as hairline weld cracks, in the tank system, and by the use of fracture mechanics, ascertain and ensure that any such deflects or flaw possible in the tank system may not lead to major or catastrophic failure of the tank without such failure having been preceeded by a very lengthy period of minor, slow gas discharge and local liquid spray from the point of inception of the defect or flaw.
  • An object of the invention is to ensure, through the determinate integration of l) tank system stress analysis, (2) tank system material fracture mechanics analysis, and (3) tank system quality control, that the liquified gas containment system is a fail safe or leak before catastrophic failure" type system.
  • a cargo tank is provided with an integral annular ring forming a section of the tank, preferably in the equatorial plane thereof.
  • the ring is wider than the tank walls and accordingly a portion thereof extends outwardly from the outer surface of the remainder of the tank.
  • This extension portion is adapted to be secured to a foundation structure, integrally connected to the hull structure, to provide support for the tank and to minimize and substantially eliminate the concentration of stresses in the walls of the tank itself.
  • the stresses within the tank may be accurately predetermined with the utilization of such known factors as the static and dynamic forces to which the tank is subjected during an ocean voyage, such that the tank and interface structure may be selected so that the tank will merely gas leak and then liquid spray leak if the wall is cracked, while, due to the stress determinacy of the tank system, the possibility of catastrophic failure is eliminated.
  • This analysis may be made before construction of the tank and interface structure begin so that the interface structure may be fabricated in an area removed from the point of assembly of the vessel and tank may later be integrated into the tank and vessel.
  • the accurate securement and positioning of the ring or interface structure with respect to the foundation support system also permits the predetermined forces to be used to calculate the stress patterns within the interface structure so that the entire support system can be designed to produce minimum stress concentration within the interface structure and the tank itself.
  • a liquid spray protector is installed between the cargo tank and those parts of the adjacent hull structures which could be sub-cooled by spray gas or spray liquid leakage from a minor defect, such as a crack, in the tank. This protector is installed so as to deflect sprayed cargo liquid downward and inboard to the tank top below the cargo tank, from whence liquid accumulations are removed.
  • FIG. 1 is a perspective view of a ship of a type in which the present invention may be employed
  • FIG. 2 is a schematic view partly in section taken on lines 2-2 of FIG. 1 showing one embodiment of the tank support system utilizing interface structure in accordance with the present invention
  • FIG. 3 is a sectional view taken on lines 3-3 of FIG. 2;
  • FIG. 4 is a view, similar to FIG. 2, of another embodiment of a tank support system adapted to use an interface structure in accordance with the present invention.
  • FIG. 5 is a schematic diagram illustrating a refrigeration system adapted for use in conjunction with the present invention.
  • FIG. 6 is a longitudinal sectional view taken on line 66 of FIG. 1.
  • a ship 10 of the type in which the present invention may be employed, contains five spherical tanks 12 of which are mounted in the ship's hull and which are adapted to contain liquified gas, such as for example methane, ethylene, propane and chlorine. It is noted that while in the illustrative embodiment of this invention, only five tanks 12 have been illustrated, it is contemplated that more or less of such tanks may be provided in making vessels to meet varying operational requirements.
  • liquified gas such as for example methane, ethylene, propane and chlorine.
  • Tanks 12 are formed by plate construction, preferably by utilizing full penetration welding which is readily subjected to non-destructive testing. Such tanks are readily fabricated to the high standards required in the shipbuilding industry and they may constitute pressure vessels which may be adapted to contain liquified gas at moderate pressures, as for example a few atmospheres.
  • Tanks 12 are directly mounted to hull 14 of ship by foundation skirt structure 16 which is joined to tank 12 by means of an interface structure 18, more fully described hereinafter.
  • Skirt 16 is formed of a plurality of plates welded together, again preferably by full penetration welding, to form an integral annular support structure which is welded at its top edge 20 to interface structure 18 at approximately the equatorial plane of tank 10.
  • Opposed edge 22 of skirt 16 is welded directly to hull structure 24 of ship 10 and thus an integral structure is formed including hull structure 24, skirt 16 and tank 12.
  • a spherical tank is used since the volumetric efiiciency of the tank is at a maximum as compared to the other tanks, and since the tank occupies a minimum amount of space in the ships hull.
  • Interface structure 18 comprises an annular ring positioned at the equatorial plane of tank 12 and is welded at its opposed edges 32 and 34 to beveled edges 35 and 37 of upper and lower hemispherical tank wall 36 and 38 respectively.
  • the inside surface 40 of ring 30 is aligned with the inside surface 39 of hemispheres 36 and 38 and forms an integral part of the tank itself.
  • Ring 30 is substantially wider than tank section 36 and 38 whereby its outer surface 42 extends substantially beyond the outer surface 44 of tank sections 36 and 38.
  • an extension portion 46 is provided which has a lower surface 48 that is welded, preferably by full penetration welding, to beveled upper edge 20 of skirt 16 to provide complete support of tank 12 throughout its entire peripheral extent.
  • tank sections 36 and 38 are joined to annular ring 30 and annular welds 52, 54 therebetween are readily tested and proved, the tank is mounted on foundation skirt l6 and secured thereto by weld 56, which is thereby positioned for non-destructive testing and inspection.
  • the support system thus formed by interface structures 18 of the present invention is stress determinant, that is, since tank 12 is integrally secured to hull structure 24 of ship 10, the stresses transferred between the tank and hull structure, due to the stresses to which the ship is subjected and to the thermal stresses produced in the loading and unloading the tank 12,
  • the tank and its support system may be accurately designed to transmit minimum stresses to the tank itself so that in the event of a tank leak, catastrophic failure thereof will not occur.
  • skirt 16 The integral connection of skirt 16 with the ships hull also provides added rigidity to the hull, thereby increasing the hulls capability to withstand torsional and rotational loads due to wind and wave forces and thereby also decreasing the stresses transmitted to tank 12.
  • the relatively large height of skirt 16 provides a degree of elastic stress distribution which is beneficial for structural response to hull movement.
  • the stress levels and variations resulting from thermal movement i.e. thermal contractions and expansions of the tank during loading and unloading may also be accurately determined and designed for.
  • the stress determinant tank and support system of the present invention it is possible to accurately document the stress levels of the structure so that the safety requirements of the various international shipbuilding regulatory bodies, and in particular the normal requirements concerning the need for a second protective tank can be satisfied, and such a second liquid containing tank may be eliminated in favor of a minor spray protection system.
  • Ring 30 is provided with groove 58 which extends circumferentially about the lower portion of the ring and defines the location of extension 46.
  • Groove 58 may have a variety of shapes and the preferred shape is determined by performing a stress analysis to calculate the expected locations and amplitudes of stress within ring 30. The specific configuration of the groove is determined to provide a minimum of stress concentration within ring 30 and a minimum of stress transferral from skirt 16 to tank 12.
  • the optimum shape of groove 58 is semi-elliptical and opening away from the interface structure. It should be noted, however, that since the shape of ring groove 58 is determined from an analysis of the forces on the ring, the optimum shape of this groove may vary as the dimensions and design of ring 30 changes.
  • ring 30 different forces may be applied to ring 30 if either the shape of the tank or skirt is changed. It is also noted that the outer surface 44 or ring 30 may be evenly beveled throughout its circumferential extent from a point 45 to the surface of hemisphere 36, thereby to provide smooth stress transmittal between the two members, and prevent stress concentration.
  • skirt 16 has been described as a generally cylindrical member secured to the lower portion of hull structure 24, it is contemplated that other structural arrangements may be utilized to advantage with the interface structure of the present invention.
  • a skirt 60 is provided which is secured along one edge 62 thereof to interface structures 18' at approximately the equatorial plane of tank 12.
  • skirt 16 is generally a frustro-conical member having its base edge 64 secured to the upper areas 66 of hull structure 24, so that the tank 12 is suspended from the hull structure rather than seated thereon as is the case in the prior embodiment.
  • Interface structure 18' in this embodiment is substantially the same as interface structure illustrated in FIG. 3 except that the structure is inverted, i.e. groove 58 opens upwardly so that and surface 48 of extension 46 are presented upwardly for connection with skirt l6, and in frustro-conical shape rather than a cylindrical shape.
  • interface structure of the present invention applies equally well to tanks formed of/or combinations of various shapes, and in particular to tanks having curvilinear peripheral wall portions, such as cylindrical, conical, elliptical or even egg-shaped tanks.
  • skirt 16 will be secured to the interface structure as aforesaid and its configuration will be in conformity with the configuration of the associated tank.
  • each of the tanks 12 in the previously discussed embodiments may be initiated by spray nozzles (not shown) which are adapted to spray the interior surfaces of the tank with liquified gas before the bulk of the cold liquid is introduced. In this way the tank is slowly cooled in order to eliminate any possible failures by thermal shock by contact of the extremely cold liquified gas with the tank walls which are at ambient temperatures.
  • a refrigeration system which is utilized to control the temperature of the gas after loading, is illustrated. As seen therein, two refrigeration systems 70, 72 either or both of which may be used in a ship constructed in accordance with the present invention, are provided.
  • System 70 utilizes the evaporation of liquified gas in tank 12 to keep the gas at a low temperature.
  • the liquified gas evaporates within tank 12 it absorbs heat of vaporization from the surface of the enclosed liquid, thus maintaining the low temperature of the liquid therein.
  • the gas is discharged from tank 12 either through pressure relief valve 74 in discharge line 76 to the atmosphere or through gas control valve 75 in discharge line 76 to the ship's boilers or propulsion system 78, for use as fuel therein.
  • the evaporating gas absorbs enough heat in this system to cool the liquified gas to a temperature below its condensation temperature.
  • the second refrigeration system 72 which may be employed to refrigerate the liquified gas within the tank 12 requires utilization of a two or three stage refrigeration system 80.
  • the evaporated gas within 12 is withdrawn from the top thereof, through valve 18, liquified by the refrigeration system, and returned to the tank through valve 83.
  • the vaporous gas is taken from the top of tank 12 through conduit 76 and 82 to the two stage refrigeration system 80, which may be of conventional construction, and which converts the vaporous gas back to its liquid phase.
  • the resulting liquid is then returned to tank 12 through line 84. Since this refrigeration system requires relatively heavy, complex, and expensive equipment, it is utilized only for the more expensive gases such as ethylene, which gases do not require the extremely low temperatures (as for example less that 1 60F) that are necessary to maintain other gases in their liquid state.
  • liquified gas within tank 12 will be unloaded through conduit 86 by pump 88, while gas vapor is returned from shore through conduit 100 to maintain a positive pressure in the tank as liquid is removed.
  • pump 88 alternative methods are available for unloading. In one of these methods gas is drawn from another cargo tank or from ashore through conduit 90 and pumped through compressor 92 into the cargo tank through conduit 94. Alternatively, liquid may be withdrawn from another cargo tank or from ashore through conduit 96, vaporized in heat exchanger 98 and passed through the compressor to the cargo tank. Both of these systems pressurize the tank several atmospheres and force the liquified gas out of the tank through conduit 86. Heater 98 may also be utilized during normal loading and unloading operations to prevent the formation of a vacuum in the tank as liquified gas is unloaded, thereby maintaining at least a pressure balance on either side of the tank with the atmosphere.
  • a cargo tank adapted to contain liquified gas and which is mounted by a supporting structure extending tangentially to the tank in a marine vessel for transportation thereby or for storage, means for connecting said tank to said support structure, comprising a one piece peripheral support member integral with and forming an annular portion of said tank and having a portion thereof extending beyond said tank for operative connection with said support structure tangentially of the tank.
  • said cargo tank is a sphere
  • said supporting structure is an integral skirt secured to the hull structure of said vessel and said support member comprises an annular ring having an integral annular support extension substantially parallel to the adjacent peripheral surface of said tank, said extension providing a support surface for operative end abutting connection with said support structure and being positioned in a predetermined spaced location with respect to the remainder of said support member and said tank whereby stresses in said tank are adapted to be predetermined.
  • a cargo tank having at least one horizontal circular dimension and adapted to contain liquified gas, which tank is mounted by a supporting structure, extending tangentially of said tank, on a marine vessel having refrigeration means associated therewith for maintaining said gas in its liquid phase, means for connecting said tank to said support structure, comprising a one piece horizontal annular section of said tank having an exterior dimension and section which defines an exten sion located in tangential relation to said tank for operative end abutting connection to said support member.
  • a cargo tank adapted to contain liquified gas and which is mounted by a supporting structure, extending tangentially of said tank, on a marine vessel for transportation thereby, means for connecting said tank to said support structure comprising a one piece peripheral support member integral with and forming a portion of said tank, said support member having a greater width than adjacent sections of said tank whereby a portion of said support member extends beyond and in tangential relation to said tank for operative end abutting connection with said support structure,
  • a cargo tank having at least one horizontal circular dimension and adapted to contain liquified gas, which tank is mounted by a supporting structure, extending tangentially of said tank, on a marine vessel having refrigeration means associated therewith for maintaining said gas at its liquid phase
  • means for connecting said tank to said support structure comprising a one piece horizontal annular section of said tank having an interior dimension substantially equal to the interior dimensions of adjacent portions of said tank and having an exterior dimension greater than the exterior dimensions of ad- 15 jacent portions of said tank whereby said tank section defines an extension located in tangential relation to said tank for operative end abutting connection to said support member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US81102A 1969-10-18 1970-10-15 Tank construction for liquified and/or compressed gas Expired - Lifetime US3677021A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO4146/69A NO124472B (no) 1969-10-18 1969-10-18

Publications (1)

Publication Number Publication Date
US3677021A true US3677021A (en) 1972-07-18

Family

ID=19880105

Family Applications (1)

Application Number Title Priority Date Filing Date
US81102A Expired - Lifetime US3677021A (en) 1969-10-18 1970-10-15 Tank construction for liquified and/or compressed gas

Country Status (11)

Country Link
US (1) US3677021A (no)
JP (1) JPS5011615B1 (no)
BE (1) BE757663A (no)
DE (1) DE2050779C2 (no)
DK (1) DK153821C (no)
ES (1) ES384658A1 (no)
FR (1) FR2066106A5 (no)
GB (1) GB1317939A (no)
NL (1) NL7015248A (no)
NO (1) NO124472B (no)
SE (1) SE371980B (no)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841269A (en) * 1972-04-13 1974-10-15 Tecnica Sener Ind Y Naval Sa Bearers for solid of revolution tanks on board ships
US4099649A (en) * 1975-05-22 1978-07-11 Gaz-Transport Apparatus for transporting fluids at low temperature
US4181235A (en) * 1978-01-09 1980-01-01 Kaiser Aluminum & Chemical Corporation Liquefied natural gas tank construction
US4336764A (en) * 1976-10-26 1982-06-29 Moss Rosenberg Verft A/S Modification of the tower construction in a spherical tank
US5441234A (en) * 1993-11-26 1995-08-15 White; George W. Fuel systems
US5566712A (en) * 1993-11-26 1996-10-22 White; George W. Fueling systems
US6508378B1 (en) * 1999-01-11 2003-01-21 Nippon Aluminum Co Polycarbonate resin pellet tank type container and transportation method using the same
US20140231439A1 (en) * 2010-10-04 2014-08-21 Amtrol Licensing, Inc. Plastic stand and method of attachment to a pressure vessel
US20160069516A1 (en) * 2013-04-23 2016-03-10 Kawasaki Jukogyo Kabushiki Kaisha Support structure of ship tank, and liquefied gas carrier
EP3032161A1 (en) 2014-12-12 2016-06-15 Shell Internationale Research Maatschappij B.V. Containment system for liquified gases
US9656729B2 (en) 2013-04-23 2017-05-23 Kawasaki Jukogyo Kabushiki Kaisha Double-shell ship tank structure and liquefied gas carrier
CN108431485A (zh) * 2015-12-22 2018-08-21 国际壳牌研究有限公司 用于液化气体的船舶容纳系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES406340A1 (es) * 1972-09-02 1973-12-01 Sener Tecnica Industrial Perfeccionamientos en buques dotados de tanques de carga independientes del tipo de presion, apoyados en cascaras continuas.
NO138636C (no) * 1976-08-23 1978-10-11 Moss Rosenberg Verft As Anordning ved isolert tank.
JPS5825979U (ja) * 1981-08-12 1983-02-18 三菱電機株式会社 冷蔵庫等の扉体
DE4019278A1 (de) * 1990-06-16 1991-12-19 Marine Service Gmbh Behaelter zur lagerung oder zum transport verfluessigter gase
JP2015217749A (ja) * 2014-05-15 2015-12-07 川崎重工業株式会社 液化ガスタンクの船体支持構造及び液化ガス運搬船

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926810A (en) * 1956-10-30 1960-03-01 Herrick L Johnston Inc Suspension system for container for storing liquefied gas
US3011321A (en) * 1957-12-02 1961-12-05 Texaco Inc Apparatus for the maintenance of liquefied petroleum products
US3087883A (en) * 1957-10-28 1963-04-30 Babcock & Wilcox Ltd Pressure vessels
US3114344A (en) * 1962-09-04 1963-12-17 Phillips Petroleum Co Ship for transporting volatile liquid and process
US3155265A (en) * 1964-11-03 Thermal stress equalizing support system
US3280778A (en) * 1961-03-10 1966-10-25 Wm Cory & Son Ltd Support in ships of tanks designed to carry low temperature liquids
US3280779A (en) * 1964-09-14 1966-10-25 Breit Eng Inc Waterborne freight-carrying vehicles
US3295791A (en) * 1964-12-11 1967-01-03 Dolphus H Black Storage container mounting for space vehicles
US3331525A (en) * 1963-12-13 1967-07-18 Kieler Howaldtswerke Ag Device for connecting liquefied gas tank linings with the bulkheads of a ship
US3380611A (en) * 1966-04-25 1968-04-30 Ltv Aerospace Corp Cryogenic storage container
US3403651A (en) * 1965-03-05 1968-10-01 Sarl Gaz Transp Integral tank for transporting liquefied gas
US3422779A (en) * 1966-03-28 1969-01-21 Rudolf Becker Tankship for the transportation of low-temperature liquefied gases

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955723A (en) * 1954-11-08 1960-10-11 Chicago Bridge & Iron Co Double wall pressure vessel
US2901592A (en) * 1956-03-29 1959-08-25 Kellogg M W Co Method for fabricating vessels

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155265A (en) * 1964-11-03 Thermal stress equalizing support system
US2926810A (en) * 1956-10-30 1960-03-01 Herrick L Johnston Inc Suspension system for container for storing liquefied gas
US3087883A (en) * 1957-10-28 1963-04-30 Babcock & Wilcox Ltd Pressure vessels
US3011321A (en) * 1957-12-02 1961-12-05 Texaco Inc Apparatus for the maintenance of liquefied petroleum products
US3280778A (en) * 1961-03-10 1966-10-25 Wm Cory & Son Ltd Support in ships of tanks designed to carry low temperature liquids
US3114344A (en) * 1962-09-04 1963-12-17 Phillips Petroleum Co Ship for transporting volatile liquid and process
US3331525A (en) * 1963-12-13 1967-07-18 Kieler Howaldtswerke Ag Device for connecting liquefied gas tank linings with the bulkheads of a ship
US3280779A (en) * 1964-09-14 1966-10-25 Breit Eng Inc Waterborne freight-carrying vehicles
US3295791A (en) * 1964-12-11 1967-01-03 Dolphus H Black Storage container mounting for space vehicles
US3403651A (en) * 1965-03-05 1968-10-01 Sarl Gaz Transp Integral tank for transporting liquefied gas
US3422779A (en) * 1966-03-28 1969-01-21 Rudolf Becker Tankship for the transportation of low-temperature liquefied gases
US3380611A (en) * 1966-04-25 1968-04-30 Ltv Aerospace Corp Cryogenic storage container

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841269A (en) * 1972-04-13 1974-10-15 Tecnica Sener Ind Y Naval Sa Bearers for solid of revolution tanks on board ships
US4099649A (en) * 1975-05-22 1978-07-11 Gaz-Transport Apparatus for transporting fluids at low temperature
US4336764A (en) * 1976-10-26 1982-06-29 Moss Rosenberg Verft A/S Modification of the tower construction in a spherical tank
US4181235A (en) * 1978-01-09 1980-01-01 Kaiser Aluminum & Chemical Corporation Liquefied natural gas tank construction
US5441234A (en) * 1993-11-26 1995-08-15 White; George W. Fuel systems
US5566712A (en) * 1993-11-26 1996-10-22 White; George W. Fueling systems
US5887567A (en) * 1993-11-26 1999-03-30 White; George W. Natural gas fueling system
US6508378B1 (en) * 1999-01-11 2003-01-21 Nippon Aluminum Co Polycarbonate resin pellet tank type container and transportation method using the same
US20140231439A1 (en) * 2010-10-04 2014-08-21 Amtrol Licensing, Inc. Plastic stand and method of attachment to a pressure vessel
US9528659B2 (en) * 2010-10-04 2016-12-27 Amtrol Licensing Inc. Plastic stand and method of attachment to a pressure vessel
US20160069516A1 (en) * 2013-04-23 2016-03-10 Kawasaki Jukogyo Kabushiki Kaisha Support structure of ship tank, and liquefied gas carrier
US9587787B2 (en) * 2013-04-23 2017-03-07 Kawasaki Jukogyo Kabushiki Kaisha Support structure of ship tank, and liquefied gas carrier
US9656729B2 (en) 2013-04-23 2017-05-23 Kawasaki Jukogyo Kabushiki Kaisha Double-shell ship tank structure and liquefied gas carrier
EP3032161A1 (en) 2014-12-12 2016-06-15 Shell Internationale Research Maatschappij B.V. Containment system for liquified gases
CN108431485A (zh) * 2015-12-22 2018-08-21 国际壳牌研究有限公司 用于液化气体的船舶容纳系统
CN108431485B (zh) * 2015-12-22 2020-08-04 国际壳牌研究有限公司 用于液化气体的船舶容纳系统

Also Published As

Publication number Publication date
NL7015248A (no) 1971-04-20
DK153821B (da) 1988-09-12
GB1317939A (en) 1973-05-23
JPS5011615B1 (no) 1975-05-02
DE2050779C2 (de) 1985-08-08
SE371980B (no) 1974-12-09
FR2066106A5 (no) 1971-08-06
NO124472B (no) 1972-04-24
BE757663A (fr) 1971-04-01
DK153821C (da) 1989-02-13
DE2050779A1 (de) 1971-05-13
ES384658A1 (es) 1973-07-16

Similar Documents

Publication Publication Date Title
US3677021A (en) Tank construction for liquified and/or compressed gas
US3680323A (en) Tanker for liquified and/or compressed gas
US8245658B2 (en) Systems and methods for supporting tanks in a cargo ship
US5727492A (en) Liquefied natural gas tank and containment system
US3472414A (en) Containers and the like
US3968764A (en) Ships for transport of liquefied gases
US3021808A (en) Ship
US3213632A (en) Ship for transporting liquefied gases and other liquids
USRE29463E (en) Tanker for liquified and/or compressed gas
KR20150004764A (ko) 장대한 해상 부체 설비
US3659543A (en) Ship for transporting cryogenic material
US3507242A (en) Tanker for the transportation of liquefied gases
US3157147A (en) Vessel for liquefied gas
USRE29424E (en) Tank construction for liquified and/or compressed gas
US2048312A (en) Ship for carrying fluids in bulk
US3337079A (en) Stressed membrane liquified gas container
US2970559A (en) Vessels for the transport of liquefied gases
US3766876A (en) Container for liquefied gases at cryogenic temperatures
US3903824A (en) Liquefied gas ship tank insulation system
US3797437A (en) Water ballast arrangement for externally insulated tankers
US3605425A (en) Ship system for the transportation of highly toxic cargoes
US3828709A (en) Lng cargo tank insulation system
JP7472126B2 (ja) 船舶のメンテナンス管理方法
GB2032506A (en) Tank
Harris Safety features on LNG ships