WO2012011823A1 - Améliorations apportées à des réservoirs de combustible - Google Patents

Améliorations apportées à des réservoirs de combustible Download PDF

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Publication number
WO2012011823A1
WO2012011823A1 PCT/NZ2011/000140 NZ2011000140W WO2012011823A1 WO 2012011823 A1 WO2012011823 A1 WO 2012011823A1 NZ 2011000140 W NZ2011000140 W NZ 2011000140W WO 2012011823 A1 WO2012011823 A1 WO 2012011823A1
Authority
WO
WIPO (PCT)
Prior art keywords
tank
srs
bunded
wall
outer walls
Prior art date
Application number
PCT/NZ2011/000140
Other languages
English (en)
Inventor
Stephen John Bain
Original Assignee
Advanced Fuel Tanks Limited
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
Priority claimed from AU2010903302A external-priority patent/AU2010903302A0/en
Application filed by Advanced Fuel Tanks Limited filed Critical Advanced Fuel Tanks Limited
Priority to US13/814,092 priority Critical patent/US20130213969A1/en
Publication of WO2012011823A1 publication Critical patent/WO2012011823A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/02—Large containers rigid
    • B65D88/12—Large containers rigid specially adapted for transport
    • B65D88/128—Large containers rigid specially adapted for transport tank containers, i.e. containers provided with supporting devices for handling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/028—Wall construction hollow-walled, e.g. double-walled with spacers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03032—Manufacturing of fuel tanks
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the present invention relates to improvements in and relating to fuel tanks. More specifically to improvements in bunded fuel storage tanks.
  • One requirement of fuel tanks is that they include an outer wall, or enclosure, to capture spillage in the event of rupture or leaking from an inner enclosure.
  • This encapsulation is referred to in the industry as bunding. It should be understood that bunding does not involve complete encapsulation of an inner enclosure, rather the outer enclosure should be capable of capturing any spilt fluid.
  • a bunded enclosure could comprise a single layer inner tank, around which is built a walled and open topped structure, such as a surrounding wall.
  • the size and/or shape of a tank can be dictated by a number of different criteria depending upon where the tank is to be located, or whether it is to be built in situ, or transported to its final location.
  • Tanks which require transporting are typically kept within the bounds of a standard shipping container's dimensions.
  • the reason for this limitation is to allow both ease of transport on a standard container transport or (vessel or vehicle) and also to minimise costs.
  • Transportation of freight is typically based on containerised rates, or the volumetric equivalence of a standard rectangular shipping crate.
  • container width is standard across all lengths, at 8-ft (2.44m).
  • the fuel tank body is either shaped to provide the required structural integrity, or external or internal reinforcement is added to the tank to provide additional strength.
  • a bunded tank which includes inner and outer walls (“the walls”),
  • inner and outer walls when the tank is viewed in transverse cross-section, define a substantially rectangular shape (SRS) wherein each inner or outer wall has an at least partially convex profile,
  • 'wall' refers to a material layer or surface which forms a barrier.
  • a wall may be configured as a continuous surface which may enclose a space.
  • the inner and outer walls of the bunded tank may each respectively have a cross sectional profile which includes two lines of symmetry.
  • the two lines of symmetry are a vertical line of symmetry and a horizontal line of symmetry.
  • the outer tank shares at least one wall with the inner tank, therefore the respective symmetry of the inner and outer tank should be understood to each include the shared inner/outer wall.
  • the inner and outer wall share a single line of symmetry which, in preferred embodiments, is a vertical line.
  • Bunded tanks are known in the art of hazardous liquid storage as being any tank having a inner and an outer wall.
  • the inner wall defines the area of the tank that contains the stored liquid.
  • the outer wall provides redundancy in the event that the inner wall becomes damaged or otherwise fails to contain the liquid therein.
  • the inner and outer walls are adjacent each other and may be in direct contact, or separated by a gap, or separated by insulation, between the inner and outer walls.
  • the inner wall is formed from steel.
  • the inner wall may be any suitably corrosion resistant material.
  • the inner wall may be impervious to the fluid contained therein, but may provide no structural support, for example a bladder.
  • the inner wall may be a coating on the inside of the outer wall.
  • the inner wall is of a seamless construction.
  • the inner wall may be identical in structure to the outer wall.
  • the outer wall is formed from steel. In other embodiments the outer wall may be a composite material.
  • the outer wall is made by way of one or more sections, such as:
  • the SRS of the outer wall forming the bunded tank provides a single integrated structure capable of substantially maintaining its shape during transportation and storage of fluid therein.
  • the SRS outer wall is substantially monocoque.
  • the tank may include one or more plug welds or other joins between the inner and outer walls at one or more locations along the length of the tank. This is particularly advantageous for embodiments which are 12.2m or greater in length.
  • the plug welds prevent the inner walls from bulging under pressure and making contact with the outer walls.
  • the end caps of the tank include a partial outwardly convex curved profile.
  • the tank includes isoblock connectors or the like on the lower side of the tank.
  • isoblock connectors or the like are located symmetrically on the bottom of the tank.
  • isoblock connectors or the like are located on the upper side of the tank. In preferred embodiments the isoblock connectors are located on the outer corners of the tank. It will be appreciated that the isoblock connectors provide a connection point to which lifting chains or strops can be attached. A person skilled in the art would understand that the isoblock connection points will be positioned evenly about the centre of gravity of the tank; such that the tank is evenly supported when being lifted at the isoblock connection points.
  • the isoblock connectors are located at the ends of the tank. However it will be apparent to a person skilled in the art that the isoblock connectors could be located at any position on the tank that allows balanced lifting of the tank.
  • the tank includes one or more lower support members.
  • lower support members are in the form of two parallel supports substantially running the length of the tank.
  • the lower support members comprise a plurality of supports running in either a longitudinal direction, a transverse direction or a combination of longitudinal and transverse directions.
  • the configuration of the lower support members should therefore not be seen as being limiting.
  • the purpose of the lower support members is to distribute the weight of the tank and the tanks contents into a support platform such as the ground or a concrete slab. It will be apparent to a person skilled in the art that:
  • the isoblock connectors may be integral with the lower support members.
  • the isoblock connectors may be attached to the tank by way of support struts or the like.
  • each inner or outer wall has an at least partially convex profile; and wherein adjacent sides of the inner and/or outer walls are connected by rounded comers, and wherein the inner and outer walls are arranged with respect to one another to create an inner tank and an outer tank, the method including the steps of: a) pre-forming one or more standard sheets of material into one or more SRS sections for the inner walls;
  • the section of the inner tank that is enclosed by the outer SRS tube in method step f) comprises substantially three sides and both ends of the inner SRS tube.
  • the method of constructing a fuel tank includes the further step j) wherein one or more apertures are cut through the section of the inner SRS tube that is not enclosed by the outer SRS tube. It is preferred not to cut through both the outer and inner SRS layers as this would result in introduction of a weakness in the bund. Therefore access to the tank contents is typically configured through access ports cut in the upper surface of the tank.
  • the side of the inner SRS layer that is not enclosed by the outer SRS tube is the upper surface of the tank.
  • the sheet material is steel.
  • the sheets of steel are joined by welding.
  • a bunded tank substantially as described above wherein the tank includes at least two longitudinally extending support structures on the underside of the floor region.
  • Preferred embodiments of the bunded tank substantially as described above may have one or more of the following advantages:
  • the tank is self supporting whether it is filled, or not filled, with liquid
  • the tank is capable of having isoblock connection points attached to the top of the tank and upon the support structures which may allow the tanks to be more easily handled for shipping and transportation purposes;
  • the tank may be permanently sited as the convex sides and top do not allow water and debris to collect on the tank.
  • Figure 1a an isometric drawing showing a bunded tank according to one preferred
  • Figure 1 b shows a transverse cross section of the bunded tank of Figure 1a
  • Figure 2a an isometric drawing showing the inner wall middle section of the bunded tank shown in Figure 1a;
  • FIG. 2b an isometric drawing showing the inner wall end section of the bunded tank shown in Figure 1a;
  • Figure 2c an isometric drawing showing the inner wall end cap of the bunded tank shown in
  • Figure 3a an isometric drawing showing the outer wall middle section of the bunded tank shown in Figure 1a;
  • Figure 3b an isometric drawing showing the outer wall end section of the bunded tank shown in Figure 1a
  • Figure 3c an isometric drawing showing the outer wall end cap of the bunded tank shown in Figure 1a;
  • FIG 4 an isometric view of an inner tank of the bunded tank shown in Figure 1a;
  • FIG 5 an isometric view of an outer tank of the bunded tank of Figure 1a.
  • Figure 6 shows a further embodiment of a bunded tank.
  • the bunded tank 1 has an inner steel sheet wall 2 (of which only the top is visible) and an outer steel sheet wall 3.
  • the relationship of the inner wall 2 and the outer wall 3 are illustrated in the transverse cross-sectional profile of Figure 1 b, wherein the inner wall 2 is enclosed by the outer wall 3 on substantially three sides.
  • the uppermost surface 202 of the inner wall 2 forms both an inner wall 2 and at least a portion of an outer wall 3 of the tank.
  • the inner wall 2 of the tank 1 has 3 SRS sections in the form of strakes, shown in Figures 2a - 2c which include:
  • the inner wall 2 also includes two end caps 2c.
  • the orientation in which inner wall 2, sections 2a, 2b and 2c are connected together is shown in Figure 4. It will be appreciated that the inner wall 2 sections could be attached to one another in a number of ways without departing from the scope of the invention. However, in the embodiment shown the sections are welded together.
  • the inner wall 2 of Figure 4 also includes an access port in the top surface thereof over which is bolted a hatch plate 100. Also visible shown in Figure 4 are overhanging lips 101 found in inner wall end sections 2b.
  • the outer wall 3 of the tank includes 3 SRS sections in the form of strakes, shown in Figures 3a - 3c which comprise:
  • the outer wall 3 also includes two end caps 3c.
  • the manner in which outer wall 3, sections 3a and 3b are connected together is shown in Figure 5. It will be apparent to a person skilled in the art that the open tub shape excluding the inner tank 2 as depicted in Figure 5 would never exist in reality as the inner tank would always be located inside the outer tank 3 prior to completion of welding. It will be appreciated that the outer wall sections could be attached to one another in a number of ways without departing from the scope of the invention. However in the embodiment shown the sections are welded together.
  • the upper most surface 202 of the inner wall 2 is welded to the outer wall 3 along the edges 201 of the open top of the tub shape shown in Figure 5.
  • the inner tank 2 shown in Figure 4 fits entirely within the outer open topped tank of Figure 5 and welding in this manner effectively suspends the inner tank 2 within the outer tank 3.
  • This is illustrated in the transverse cross section of Figure 1 b where a gap 200 can be seen between substantially 3 sides of the inner 2 and outer 3 walls of the tank 1. Whilst not shown in the drawings, it will be appreciated that a similar gap will exist between the inner end wall 2c and outer end wall 3c of the tank.
  • the inner end walls 2c are spaced apart from the outer end walls 3c, if an overhanging lip 01 , or the like, is not included a gap will be left at the top of the tank between the inner 2c and outer 3c end walls.
  • the lips 101 both cover the gap that would otherwise be left and also provide a greater weld area by which to attach the inner 2c and outer 3c tanks.
  • the body of the tank 1 is substantially rectangular in form, bounded by four distinct sides 4, each opposed side 4 of the inner 2 and outer 3 walls is further defined by a partial convex curved profile 4a. Adjacent sides 4 of the inner 2 and outer 3 walls are connected by rounded corners 4b along adjacent edges 4c of the partial convex curved profile 4a.
  • the tank 1 is constructed in a number of SRS tube sections. For the purposes of clarity, the tank 1 has been described in terms of one preferred length only, comprising 3 SRS tube sections. It will be apparent to a person skilled in the art that the length of the tank 1 can be altered by using more or less of the SRS tube sections.
  • the tank 1 also includes longitudinally extending support structures 7 welded to the bottom of the tank 1.
  • the longitudinally extending support structures 7 include integrated isoblock connection points 8, of which only 3 are visible.
  • FIG. 1 a shows an embodiment in which welded to the upper surface of the tank 1 are support struts 10, into which upper isoblock connectors 9, are integrated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention concerne un réservoir protégé par une digue qui comprend des parois interne et externe, ces parois interne et externe, lorsqu'on observe le réservoir dans sa section transversale, définissent une forme sensiblement rectangulaire. Chaque paroi interne et externe présente au moins un profil partiellement convexe, les côtés adjacents des parois interne et externe sont raccordés par des angles arrondis, et les parois interne et externe sont disposées l'une par rapport à l'autre de façon à former un réservoir interne et un réservoir externe.
PCT/NZ2011/000140 2010-07-23 2011-07-21 Améliorations apportées à des réservoirs de combustible WO2012011823A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/814,092 US20130213969A1 (en) 2010-07-23 2011-07-21 Fuel tanks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2010903302A AU2010903302A0 (en) 2010-07-23 Improvements in and Relating to Fuel Tanks
AU2010903302 2010-07-23

Publications (1)

Publication Number Publication Date
WO2012011823A1 true WO2012011823A1 (fr) 2012-01-26

Family

ID=45421160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ2011/000140 WO2012011823A1 (fr) 2010-07-23 2011-07-21 Améliorations apportées à des réservoirs de combustible

Country Status (3)

Country Link
US (1) US20130213969A1 (fr)
AU (1) AU2011100901A4 (fr)
WO (1) WO2012011823A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10745195B1 (en) * 2017-08-21 2020-08-18 Murray Services Inc. Surface mounted secondary containment system
CN111186292A (zh) * 2020-04-01 2020-05-22 东风（十堰）底盘部件有限公司 一种驾驶室后背式1200l大容积铁油箱

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325721A1 (fr) * 1988-01-28 1989-08-02 EDELHOFF POLYTECHNIK GMBH & CO. Conteneur collecteur
US5809650A (en) * 1995-01-27 1998-09-22 Steel Tank Institute Lightweight double wall storge tank

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1235128A (en) * 1916-10-13 1917-07-31 John W Frank Tank.
US2869751A (en) * 1954-09-03 1959-01-20 Pfauder Permutit Inc Insulated storage tank and method of making a storage tank
US3696959A (en) * 1971-01-11 1972-10-10 Lox Equip Cryogenic storage vessel constructed of dissimilar materials
US3814290A (en) * 1973-07-10 1974-06-04 Westerwaelder Eisen Gerhard Freight containers for flowable goods
US3924773A (en) * 1974-05-01 1975-12-09 Nelson C Wilkinson Fuel tank
US6422413B1 (en) * 1989-12-19 2002-07-23 William Y. Hall Tank vault
US5251473A (en) * 1990-09-21 1993-10-12 Ace Tank & Equipment Company Method and storage tank system for aboveground storage of flammable liquids
SE506972C2 (sv) * 1996-07-16 1998-03-09 Volvo Lastvagnar Ab Anordning vid drivmedelstank för fordon
AT8860U1 (de) * 2005-04-13 2007-01-15 Magna Steyr Fahrzeugtechnik Ag Modularer behälter für kryogene flüssigkeiten
US8162164B2 (en) * 2007-04-19 2012-04-24 Podd Stephen D Bulk liquid transport system
GB0813314D0 (en) * 2008-07-21 2008-08-27 Swire Oilfield Services Ltd Tank for storing fluid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325721A1 (fr) * 1988-01-28 1989-08-02 EDELHOFF POLYTECHNIK GMBH & CO. Conteneur collecteur
US5809650A (en) * 1995-01-27 1998-09-22 Steel Tank Institute Lightweight double wall storge tank

Also Published As

Publication number Publication date
AU2011100901A4 (en) 2011-09-01
US20130213969A1 (en) 2013-08-22

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