US3871319A - Buoyant vessels - Google Patents

Buoyant vessels Download PDF

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Publication number
US3871319A
US3871319A US203212A US20321271A US3871319A US 3871319 A US3871319 A US 3871319A US 203212 A US203212 A US 203212A US 20321271 A US20321271 A US 20321271A US 3871319 A US3871319 A US 3871319A
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United States
Prior art keywords
methane
barge
tank
vessel
liquid
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
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US203212A
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English (en)
Inventor
Frederick Henry Turner
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Individual
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Individual
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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2231/00—Material used for some parts or elements, or for particular purposes
    • B63B2231/60—Concretes
    • B63B2231/68—Prestressed concretes
    • 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
    • F17C2203/0678—Concrete
    • 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
    • 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
    • Y10S220/918—Spacing element for separating the walls of a spaced-wall container

Definitions

  • the invention relates to buoyant vessels which y June 1971 Umted Kmgdom 28909/71 be ships or stationary floating containers.
  • the boundary walls of such vessels are made from prestressed [52] 114/74 114/65 220/9 LG concrete providing an outer layer, an inner layer, and it. Struts between the layers.
  • the Vessel y contain a [58] held of Search 114/65 52/220 tank suitable for the containment of liquid methane or 219/213 220/9 LG other liquid at low temperatures and the boundaries of thtk 'ld tfthbd"fth References Cited vezsezlin may me u e par s o e oun aries o e UNITED STATES PATENTS 2,938,359 5/1960 Cobb, Jr. et a1.
  • a buoyant vessel of which the lateral boundary walls are formed from pre-stressed concrete providing an outer layer, an inner layer, and struts extending between the layers.
  • a buoyant vessel in which is contained a tank in which liquid at low temperature may be stored, wherein part of the boundary walls of the tank is provided by the boundary walls of the vessel, that part is formed from pre-stressed concrete providing anouter layer, an inner layer and struts extending between the layers, and the part is provided inwardly of both layers with thermally insulating material.
  • FIG. 1 shows in plan view a barge in which liquid methane may be transported and stored
  • FIG. 2 is a sectional elevation through the centre line of the barge
  • FIG. 3 is a somewhat schematic cross-section on the line III-III of FIG. 2, the left-hand part showing the formation of the outer walls of the barge and the righthand showing an inner lining of the walls;
  • FIG. 4 is also a somewhat schematic cross-section on the line IV-IV of FIG. 3, the left-hand part showing the formation of the outer walls of the barge and the right-hand part showing an inner lining of the walls;
  • FIG. 5 is a detail, in isometric projection, of the method of construction of the barge
  • FIG. 6 is a detail, in isometric projection, illustrating the way in which the inner lining is fixed.
  • FIG. 7 is a detail showing a modification of the barge illustrated in FIGS. 1 to 4.
  • the barge indicated generally at l and illustrated in FIGS. 1 to 4 has a hull that is generally flat-bottomed, 2, and flat-sided, 3, whilst the upper deck 4 includes a horizontal central section 4a extending between knuckles from which the side sections 4b slope down towards the sides 3.
  • the width of the barge is 100 feet and the height 45 feet.
  • the major part of the space within the barge is occupied by five similar rectangular storage tanks 5 each extending across the width and height of the barge and being bounded at their ends by bulkheads 6.
  • each tank 5 there is a tank trunk 7 closing an opening in the deck 4 and a lattice mast 8 is associated with each trunk 7 to provide a hoist and carry other apparatus.
  • each tank 5 is connected to a liquid methane main l0 and a vapour methane main 11.
  • the hull, decks and the bulkheads of the barge are fomed from pre-stressed concrete, the construction consisting generally of flat panels, about 5 feet thick, connected to each other edge-to-edge and to corner girders 16.
  • a typical panel is denoted by 15 (FIGS. 3 and 4). This panel is included in a side wall 3.
  • the panel includes an outer layer or slab 15a, an inner layer or slab 15b, and struts 15 each extending between both layers and intersecting to form a rectangular lattice.
  • the dimensions of the panels are suchthat a man could get into them for the purpose of inspection, and suitable openings, normally closed by manholes, are provided to permit such access'Pretensioning tendons, such as high tensile bars, extend both ways within the inner and outer slabs.
  • the panels in the side walls 3 extend between lower and upper girders 16a and 16b.
  • the panels that are included in the bottom 2 and the deck 4 extend between girders 16a and 16b respectively, whilst the panels forming the bulkheads extend between girders 16c and 16d included in the bottom and deck, and in the side walls, respectively.
  • the girders 16c and 16d are of essentially hollow construction, with the outer boundaries supported by radially disposed struts and the girders 16a and 16b are of rather more solid construction, relieved only by longitudinally extending bores.
  • the cross-section of each girder 16 is such that a surface 17 at each corner of each tank 5 lies at 45 to each of the adjacent sides of the tank 5. Where three girders converge at right angles to each other, their ends abut a solid corner piece 18 providing a fiat face parallel to the adjacent end face of the girder.
  • the panels and girders are held together by the tendons, such as are indicated at 19, which are provided to effect pre-stressing of the concrete.
  • the tendons extend through the ribs of the panels to to anchors 19a and access to the tendons to tension them can be had through the access openings that are provided for inspection.
  • the joint is filled, as indicated at 20.
  • a suitable filler may be provided by sand mixed with either, or both, of epoxy resin and cement.
  • a light pre-stress is applied as soon as, or before, the filler has hardened and the final pre-stress is applied subsequently, being developed in such a way that the resultant distortion that develops in the vessel is a minimum.
  • Each tank 5 is lined internally, the lining consisting, essentially, of a layer of thermally insulating material 25 covered by an aluminum casing 26, into contact with which the liquid methane comes.
  • the insulating material 25 is formed by blocks, of Foamglas, which are held against the walls and bulkheads by screens 27 of aluminium mesh that are retained by Z-section uprights 28. Fixing bolts pass through the uprights 28, screen 27 and insulation 25 into blocks 28a embedded in struts 150.
  • the uprights 28 also support panels 29 of light weight concrete, about three inches thick, serving as a backing for the aluminium sheeting 26.
  • the pieces of the sheeting 26 are seam welded; to the uprights 28.
  • the thickness of the insulating material 25 at the sides, bottom and deck is about 1 foot 6 inches, whilst at the bulkheads 6 its thickness is about 2 feet. Since the bulkheads 6 lie between adjacent tanks containing methane, they are liable to become colder than-the other boundary walls of the tanks 5, since one side of these walls is exposed to the sea or the air. There is thus a risk that differential contraction could occur. The extra thickness of insulation will tend to counteract this, but means is also provided to conduct heat to the bulkhead from the side of the bulkhead at which the insulation is applied. For this purpose, metal plates 30 are embedded in the central lengths of the outer surfaces of the girders 16c and 16d and bars 31 of good thermal conductivity extend between them, through the thermally insulating material adjacent the bulkhead. Thus ambient heat picked up by the plates 30 will pass along the bars 31 and so prevent excessive cooling of the bulkheads 6.
  • the bars 31 may be replaced by resistance heating elements and means may be provided for heating them. They may also be replaced by ducts through which heating fluid may be passed. Such ducts may also be filled with a static body of fluid, or even ice, since such materials would conduct adequate heat from the ambience to restrict the cooling effect of the methane on the bulkheads.
  • each bar 31 may be replaced by two separate shorter ones extending towards each other from opposite ends of the bulkhead and overlapping in the middle. Although such heating is provided only for the bulkheads, similar heating can be provided for any other boundary wall.
  • Methane is liquid at a temperature of 259F. and it will be realised, therefore, that when the barge shown in the drawings is at sea, there will be a tendency for boil-off to occur. Such boil-off may be economically tolerable and present no pollution objections.
  • the barge is, however, provided with means for supercooling the tanks 5.
  • Each tank 5 includes tubing forming a loop 40 lying close to the upright walls of the tank and just below the normal liquid level in the tank.
  • Each loop 40 is connected by ducting 41 to a storage and refrigerating means 42 included forward of the tanks 5.
  • the means 42 includes a tank containing liquid nitrogen and associated with means for maintaining the nitrogen in its liquid state and for circulating it through the loops 40 and the ducting 41.
  • the temperature at which nitrogen boils is less than that at which methane boils, so that the circulation of the nitrogen will effectively prevent boil-off of methane.
  • the loops 40 are near the upper ends of the normal liquid level in the tanks 5 so that the methane will be cooled by convection effects.
  • the barge that has been described is intended to be charged at a source of liquid methane and then towed or pushed, perhaps with one or more similar barges, by a tug to a point of discharge. It is intended that the barge should be unmanned and controlled during transit from the tug by an automatic electronic monitoring system. Energy for the operation of such an apparatus, such as bilge pumps, that need be mounted on the barge could be provided he electric storage batteries which could be recharged through a generator device by an inertia propeller or by a diesel generator.
  • the barge may be so simply constructed that its use as a storage vessel is not uneconomic. For return of a barge to its charging port, ballast is unnecessary, since the weight of the concrete is sufficient.
  • the lining of the tanks is such that the concrete will not normally be cooled to the temperature of the methane.
  • the aluminum lining of the tanks 5 is well able to resist the conditions established by the methane, but even were a fault to develop so that the liquid methane reached the concrete, the latter, too, would be well able to resist these conditions.
  • the effect of liquid methane on the mild steel from which the hulls of ships are usually made would be destructive is that it made the steel brittle.
  • the worst effect on the pre-stressed construction that has been described is likely to be to cause a crack that would, in effect, be self-healing.
  • the effect of either leakage developing from within the methane tank or of the vessel being involved in a collision is likely to be far less drastic than would be the case if the hull were made of mild steel.
  • FIG. 7 shows one of two similar devices mounted on opposite sides of the ship, forward of the storage tanks 5.
  • Each device includes a flat nozzle 45 let into the side wall 3 of the barge below the water line.
  • the nozzle is formed mainly of metal or plastic sheeting, although the outer boundary 46 is a panel of porous bronze 46.
  • the nozzle 45 is connected through a duct 47 to the vapour methane main 11, the duct containing a reservoir 48, a pump 49 and a one-way valve 50. Should boil-off occur, the methane vapour will flow into the main 11 and thence into the tank 48.
  • the pump 49 is arranged to operate automatically when the pressure in the tank reaches a predetermined value and will then operate to send the vapour through the valve 50 into the nozzle 45 from which it will discharge through the diffuser plate 46 into a fine dispersion in the water.
  • the valve 50 will prevent sea water from entering beyond that point, although an obturating device may be included to cover the plate when it is not required to operate.
  • a valve, not shown, may also be included upstream of the reservoir 48 to prevent vapour from flowing into the reservoir during normal unloading of the methane.
  • vapour boiling off from the tanks 5 can be re-liquified and recirculated to the tanks 5.
  • the tender may also carry plant for withdrawing liquid methane from the barge and vaporizing it; most of the vaporized gas would be supplied to a point of use but some would be returned to the tank to compensate for the falling liquid level and ensure that air, which might create an explosive mixture, does not enter the tank.
  • the tender can be connected to, or disconnected from, successive barges and be used as required to deliver, or recirculate, vapour.
  • the tender is envisaged to be in the form of a ship, it might be a land vehicle and either a tracked or a free-running vehicle.
  • the casing 26 may, alternatively, be formed of stainless steel, lnvar steel, pre-stressed concrete, or glass fibre reinforced plastic.
  • Other materials suitable for use as the insulating material 25 include polyurethane and balsa wood whilst the screen 27 may be made from a mesh of stainless steel. Whilst the part of the casing 26 that appears in FIG. 6 is plane, it may be appropriate to provide it with flutes, bosses or dimples to facilitate its accommodation of thermally induced contractions.
  • a buoyant vessel in which cryogenic liquid may be contained comprising outer walls and at least one bulkmally to plates lying at the boundaries of the vessel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US203212A 1970-12-04 1971-11-30 Buoyant vessels Expired - Lifetime US3871319A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB5764570 1970-12-04
GB768071*[A GB1378492A (en) 1970-12-04 1971-03-24 Buoyant vessels
GB2890971 1971-06-21
GB2890671 1971-06-21
GB2890771 1971-06-21

Publications (1)

Publication Number Publication Date
US3871319A true US3871319A (en) 1975-03-18

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US203212A Expired - Lifetime US3871319A (en) 1970-12-04 1971-11-30 Buoyant vessels

Country Status (9)

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US (1) US3871319A (Direct)
BE (1) BE776258A (Direct)
CA (1) CA997627A (Direct)
DE (1) DE2160013A1 (Direct)
FR (1) FR2117212A5 (Direct)
GB (1) GB1378492A (Direct)
IT (1) IT945096B (Direct)
NL (1) NL7116700A (Direct)
SE (1) SE406305B (Direct)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4660491A (en) * 1983-07-22 1987-04-28 Hitachi Zosen Corporation Double hull ship without reinforcing transverse members between the inner and outer hull platings
US4674430A (en) * 1983-07-11 1987-06-23 Hitachi Zosen Corporation Ship without transverse reinforcing members between the inner and outer hull plating
WO1994011239A1 (en) * 1992-11-10 1994-05-26 Skarhar, Inc. Simplified midbody section for marine vessels
US5359953A (en) * 1992-11-10 1994-11-01 Us Shipbuilding Corporation, Inc. Simplified midbody section for liquid cargo vessels and method and apparatus for construction
US20060118018A1 (en) * 2004-12-08 2006-06-08 Yang Young M Modular walls for use in building liquid tank
US20070028823A1 (en) * 2004-12-08 2007-02-08 Yang Young M Ship with liquid tank
US20070095266A1 (en) * 2005-10-28 2007-05-03 Chevron U.S.A. Inc. Concrete double-hulled tank ship
US20070246473A1 (en) * 2006-04-20 2007-10-25 Korea Gas Corporation Lng tank and vehicle with the same
CN100485249C (zh) * 2004-11-10 2009-05-06 气体运输技术公司 具有并列布置的绝热元件的密封、绝热舱体
US20100018225A1 (en) * 2006-09-01 2010-01-28 Korea Gas Corporation Structure for liquefied natural gas storage tank
WO2020074336A1 (de) * 2018-10-12 2020-04-16 Michael Niederbacher Biogasanlage zur fermentation von organischen stoffen und zur erzeugung von biogas
CN115320793A (zh) * 2022-09-06 2022-11-11 安徽水利开发有限公司 一种模块化浮船泵站构建方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233922A (en) * 1979-02-09 1980-11-18 Conway Charles S Fluid transfer system for tanker vessels
GB2143783B (en) * 1983-07-22 1987-04-29 Hitachi Shipbuilding Eng Co Bulkhead
WO2009072681A1 (en) 2007-12-04 2009-06-11 Samsung Heavy Ind. Co., Ltd. Anti-sloshing structure for lng cargo tank
CN112722169B (zh) * 2021-03-10 2022-08-12 李刚 一种机械零件直线运输装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938359A (en) * 1955-07-21 1960-05-31 Phillips Petroleum Co Method and apparatus for storage and transportation of acetylene
US3031856A (en) * 1960-08-17 1962-05-01 Exxon Research Engineering Co Vessel for transporting low temperature liquids
US3072087A (en) * 1958-06-25 1963-01-08 Conch Int Methane Ltd Cold cargo ship and construction
US3465121A (en) * 1966-09-12 1969-09-02 Btr Industries Ltd Panels
US3498249A (en) * 1968-09-16 1970-03-03 Exxon Research Engineering Co Tanker vessel
US3631831A (en) * 1967-11-06 1972-01-04 Certified Concrete Ltd Improvements in or relating to concrete structure
US3637975A (en) * 1969-03-14 1972-01-25 Kabel Metallwerke Ghh Areal heating element

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938359A (en) * 1955-07-21 1960-05-31 Phillips Petroleum Co Method and apparatus for storage and transportation of acetylene
US3072087A (en) * 1958-06-25 1963-01-08 Conch Int Methane Ltd Cold cargo ship and construction
US3031856A (en) * 1960-08-17 1962-05-01 Exxon Research Engineering Co Vessel for transporting low temperature liquids
US3465121A (en) * 1966-09-12 1969-09-02 Btr Industries Ltd Panels
US3631831A (en) * 1967-11-06 1972-01-04 Certified Concrete Ltd Improvements in or relating to concrete structure
US3498249A (en) * 1968-09-16 1970-03-03 Exxon Research Engineering Co Tanker vessel
US3637975A (en) * 1969-03-14 1972-01-25 Kabel Metallwerke Ghh Areal heating element

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674430A (en) * 1983-07-11 1987-06-23 Hitachi Zosen Corporation Ship without transverse reinforcing members between the inner and outer hull plating
US4660491A (en) * 1983-07-22 1987-04-28 Hitachi Zosen Corporation Double hull ship without reinforcing transverse members between the inner and outer hull platings
US5398630A (en) * 1992-11-10 1995-03-21 Us Shipbuilding Corporation, Inc. Simplified midbody section for marine vessels and method and apparatus for construction
US5359953A (en) * 1992-11-10 1994-11-01 Us Shipbuilding Corporation, Inc. Simplified midbody section for liquid cargo vessels and method and apparatus for construction
WO1994011239A1 (en) * 1992-11-10 1994-05-26 Skarhar, Inc. Simplified midbody section for marine vessels
CN100485249C (zh) * 2004-11-10 2009-05-06 气体运输技术公司 具有并列布置的绝热元件的密封、绝热舱体
US20060117566A1 (en) * 2004-12-08 2006-06-08 Yang Young M Method for manufacturing liquid tank and ship with liquid tank
US20060118019A1 (en) * 2004-12-08 2006-06-08 Yang Young M Ship with liquid tank
US20060131304A1 (en) * 2004-12-08 2006-06-22 Yang Young M Liquid tank system
US7171916B2 (en) 2004-12-08 2007-02-06 Korea Gas Corporation Ship with liquid tank
US20070028823A1 (en) * 2004-12-08 2007-02-08 Yang Young M Ship with liquid tank
US7204195B2 (en) * 2004-12-08 2007-04-17 Korea Gas Corporation Ship with liquid tank
US20060118018A1 (en) * 2004-12-08 2006-06-08 Yang Young M Modular walls for use in building liquid tank
US7717288B2 (en) 2004-12-08 2010-05-18 Korea Gas Corporation Liquid tank system
US7597212B2 (en) 2004-12-08 2009-10-06 Korea Gas Corporation Modular walls for use in building liquid tank
US7325288B2 (en) * 2004-12-08 2008-02-05 Korea Gas Corporation Method for manufacturing liquid tank and ship with liquid tank
US20070095266A1 (en) * 2005-10-28 2007-05-03 Chevron U.S.A. Inc. Concrete double-hulled tank ship
WO2007053377A3 (en) * 2005-10-28 2007-09-13 Chevron Usa Inc Concrete double-hulled tank ship
US20070246473A1 (en) * 2006-04-20 2007-10-25 Korea Gas Corporation Lng tank and vehicle with the same
US7819273B2 (en) 2006-04-20 2010-10-26 Korea Gas Corporation Liquid natural gas tank with wrinkled portion and spaced layers and vehicle with the same
US20100018225A1 (en) * 2006-09-01 2010-01-28 Korea Gas Corporation Structure for liquefied natural gas storage tank
US7938287B2 (en) * 2006-09-01 2011-05-10 Korea Gas Corporation Structure for liquefied natural gas storage tank
WO2020074336A1 (de) * 2018-10-12 2020-04-16 Michael Niederbacher Biogasanlage zur fermentation von organischen stoffen und zur erzeugung von biogas
CN115320793A (zh) * 2022-09-06 2022-11-11 安徽水利开发有限公司 一种模块化浮船泵站构建方法
CN115320793B (zh) * 2022-09-06 2024-06-07 安徽水利开发有限公司 一种模块化浮船泵站构建方法

Also Published As

Publication number Publication date
CA997627A (en) 1976-09-28
NL7116700A (Direct) 1972-06-06
BE776258A (fr) 1972-04-04
DE2160013A1 (de) 1972-06-08
SE406305B (sv) 1979-02-05
GB1378492A (en) 1974-12-27
FR2117212A5 (Direct) 1972-07-21
IT945096B (it) 1973-05-10

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