US20040069779A1 - Double-walled tank container - Google Patents

Double-walled tank container Download PDF

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Publication number
US20040069779A1
US20040069779A1 US10/334,957 US33495702A US2004069779A1 US 20040069779 A1 US20040069779 A1 US 20040069779A1 US 33495702 A US33495702 A US 33495702A US 2004069779 A1 US2004069779 A1 US 2004069779A1
Authority
US
United States
Prior art keywords
tank
bottom plate
container
spacer
tank container
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.)
Abandoned
Application number
US10/334,957
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English (en)
Inventor
Thomas Schmidt
Dieter Pfau
Till Gerhard
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.)
WEW Westerwaelder Eisenwerk GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to WEW WESTERWALDER EISENWERK GMBH reassignment WEW WESTERWALDER EISENWERK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PFAU, DIETER, SCHMIDT, THOMAS, GERHARD, TILL
Publication of US20040069779A1 publication Critical patent/US20040069779A1/en
Priority to US11/254,204 priority Critical patent/US8381937B2/en
Abandoned legal-status Critical Current

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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
    • 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
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/22—Tank vehicles
    • B60P3/2205—Constructional features
    • B60P3/221—Assembling, e.g. layout of steel plates or reinforcing arrangements
    • 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
    • B65D88/00—Large containers
    • B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
    • B65D88/744—Large containers having means for heating, cooling, aerating or other conditioning of contents heating or cooling through the walls or internal parts of the container, e.g. circulation of fluid inside the walls
    • 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
    • B65D88/748—Large containers having means for heating, cooling, aerating or other conditioning of contents for tank containers
    • 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
    • B65D90/48—Arrangements of indicating or measuring devices
    • B65D90/50—Arrangements of indicating or measuring devices of leakage-indicating devices
    • B65D90/501—Arrangements of indicating or measuring devices of leakage-indicating devices comprising hollow spaces within walls
    • 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
    • B65D90/48—Arrangements of indicating or measuring devices
    • B65D90/50—Arrangements of indicating or measuring devices of leakage-indicating devices
    • B65D90/505—Arrangements of indicating or measuring devices of leakage-indicating devices comprising porous spaces or porous layers in walls
    • 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
    • B65D2590/00—Component parts, details or accessories for large containers
    • B65D2590/02—Wall construction
    • B65D2590/023—Special coating or treatment of the internal surface

Definitions

  • the outer containers of such tank containers can be incorporated in proven and standardized frame constructions customary for single-walled containers. Ring saddle mountings, such as described in DE 32 12 696 C2, have proven to be worthwhile in the field of tank containers.
  • the tank is connected with the front frames via the vaulted end arcs of the tank. This construction enables the stress between the tank and the frame, which occurs during handling and transportation of the tank containers, to be completely imparted. Other connections between the tank and the frame are generally not necessary.
  • FIG. 4 shows a known design of a front ring saddle mounting on a double-walled container, whereby a front ring ( 12 ′) runs through the exterior bottom plate ( 8 ′, 8 ′′) and is welded to the interior bottom plate ( 3 ′).
  • This procedure is unsatisfactory from a production viewpoint and unsuitable for inner containers with a brittle interior bottom plate since the stresses from transportation and handling directly work on the tank plate covered with the coat.
  • Increasing the wall thickness of the entire inner container, or at least the end bottom plates of the inner container can offset this. This would increase the weight of the tank considerably.
  • the front ring ( 12 ′) needs to be interrupted in the area where it is connected with the interior bottom plate in order to enable the hollow space ( 10 ′) inside the front ring to interconnect with the hollow space ( 10 ′) outside the front ring, and to allow a leakage detector liquid to run through it. Furthermore, there is a risk that a leak ( 3 ′′) in the area of the welding between the front ring ( 12 ′) and the interior bottom plate is not shown because possible double sheet metal plating ( 12 ′′) in the front ring might cause the leak to seep out through the exterior bottom plate ( 8 ′, 8 ′′) without activating the leakage detector.
  • the present invention aims at fastening an inner tank in the defined position in an outer enclosure, enabling stresses and strains to be imparted between the inner tank and the frame without having to interrupt the outer enclosure in the strain transmission areas. Furthermore, it aims at realizing low-cost production measures to leak-proof the container, and making light inner containers with brittle interior coats available for tank containers.
  • the solution to this problem consists of a tank container as described in claim 1 whereby the inner container is fixed lengthwise inside an outer container connecting the latter to the front frame in a conventional way with a front ring saddle mounting. Since the vaulted interior and exterior bottom plates have a process tolerance, it is impossible to install the inner container inside the outer container without compensating these process tolerances. The spacer also solves this problem.
  • claims 3 and 4 cover extremely expedient designs and layouts of the spreader(s) for ring saddle mounted tank containers.
  • Spacers composed of several spacer blocks allow for a very precise tolerance compensation between the interior and exterior bottom plates.
  • the conical design not only compensates the stresses running in the direction of the tank axle, but also radial and vertical stresses, and imparts them to the front ring mounted directly between the interior and the exterior bottom plates in accordance with claim 4.
  • claim 5 covers an enhanced design whereby the inner tank does not have to be completely encompassed by the outer tank. This is the case when the outer tank serves as a leakage safety device and therefore only needs to reach the maximum filling height of the inner tank.
  • claim 6 covers a tank container whereby the outer enclosure completely encompasses the inner enclosure and the connections attached to the inner enclosure can penetrate the outer enclosure.
  • the design described in claim 7 covers putting a leak detector liquid or a heating or cooling medium in the hollow space allowing a thorough rinse of the clearance.
  • the designs covered by claims 8 and 9 mainly concern tank containers with a coated inner container.
  • shock-absorbing spacers connect the inner container with the outer container.
  • High-resistance PUR/PIR foams especially allow for a very smooth stress transition in the inner container. Filling the space between the inner and the outer tanks with foam enhances this effect, and allows for extremely thin-walled, light yet coated inner containers. For this, the outer container needs to be closed completely.
  • the design described in claim 10 allows for the installation of a heating element between the inner and outer enclosure. This requires appropriate spacers are required. The heating element either heats the inner tank directly or the temperature medium between the inner and outer enclosure.
  • FIG. 1 shows a partial side view of a tank container according to the invention with a schematic presentation of the front frame.
  • FIG. 2 shows a detail of the front ring saddle mounting according to the invention.
  • FIG. 3 shows a side view of the tank container end with a coated inner tank and shock-absorbing spacers.
  • FIG. 4 shows a detailed view of a conventional front ring mounting of a double-walled container.
  • the end of the container has a double-walled tank 1 with an inner tank composed of a cylindrical center section 2 and an interior bottom plate 3 connected via the welding 4 . Both the tank section 2 and the interior bottom plate 3 are concentric with respect to the tank axle 5 . Furthermore, the double-walled tank has an outer enclosure 6 encompassing a cylindrical section 7 and an exterior bottom plate 8 . Both parts 7 , 8 are also concentric with the tank axle 5 and are connected via the welding 9 .
  • the cylindrical section 7 presented only partially encompasses the tank section, thus keeping the apex area uncovered.
  • This design is expedient when the inner container 2 , 3 only needs to be encompassed up to its maximum filling height instead of being encompassed completely.
  • the clearance 10 between the inner tank 2 , 3 and the outer tank 7 , 8 is welded shut.
  • a cylindrical front ring 12 and a corner iron saddle ring 13 connect the exterior bottom plate 8 with the frame (not shown) equipped with a front frame 14 .
  • Welded joints 15 a through 15 f (FIG. 2) connect the front frame 14 , saddle ring 13 , front ring 12 and the exterior bottom plate 8 .
  • Spacer pieces 16 create the clearance between the exterior bottom plate 8 and the interior bottom plate 3 .
  • a conical arrangement of the rings makes the spacers concentric with respect to the tank axle of the outer surface of the interior bottom plate 3 and the inner surface of the exterior bottom plate.
  • the spacers are located in the area of the welded joints 15 e and f , thus allowing the stress imparted over the front ring 12 to be imparted through the exterior bottom plate over the spacer pieces 16 on the interior bottom plate 3 .
  • the conical arrangement the stress can be imparted in the direction of the tank axle, as well as in a radial direction of the tank axle.
  • the design example shows spacer pieces 16 attached with spot welding to the interior bottom plate 3 . It is also possible to attach the spacers to the inner surface of the exterior bottom plate 8 .
  • the size of the spacer pieces 16 determines the size of the hollow space 10 and also offsets the process tolerance of the interior and exterior bottom plates 3 , 8 in such a way that the inner tank 2 , 3 is clamped between the exterior bottom plates.
  • the hollow space 10 serves as a leakage control devise.
  • the hollow space 10 is completely filled with a harmless test liquid and connected in an interconnecting way with a compensator reservoir (not shown) placed above the apex of the tank.
  • the connection in the apex of the tank (not shown) is laid out in a shell type arrangement 7 c .
  • the filling level of the compensator reservoir can be checked through an inspection glass or an extra level indicator.
  • the test liquid enters the inner tank and the gauge in the control reservoir drops. Changes in the filling level are determined with regular checkups or by an audio and/or video signal.
  • the hollow space 10 can also be used for the circulation of a liquid or gaseous temperature equalization medium.
  • the temperature of this medium is controlled by a connected aggregate (also not shown).
  • FIG. 3 shows a design with very thick spacer pieces 16 a creating a very large hollow space 10 .
  • These spacer pieces 16 a consist of a shock-absorbing material (high resistance PUR/PIR, elastomers, plastics, etc.) creating an energy absorbing, buffering elastic force coupling between the inner tank 2 , 3 and the outer enclosure.
  • the cylindrical section 7 of the outer enclosure 6 completely encompasses the inner tank 2 , 3 and is composed of the reference cylinder shell segments 7 a and 7 b , welded together and to the exterior bottom plate 8 in an overlapping design.
  • This layout is extremely suitable for inner tanks 2 , 3 with a brittle interior coat (not shown) necessary for very aggressive freights.
  • the elastic floating arrangement of the inner tank 2 , 3 in the outer enclosure 7 a , 7 b , 8 avoids strains causing rips in the coat.
  • the hollow space 10 may be additionally filled with so-called high-resistance PUR/PIR. This increases the protective capacity of the inner tank 2 , 3 . At the same time, this creates a considerable thermal insulation effect, which is very useful for the transportation or storage of temperature equalized freights.
  • a possible design for this type of freight consists of a temperature equalization unit installed in the hollow space 10 between the inner tank 2 , 3 and the outer enclosure 6 .
  • This temperature equalization unit could be made of half pipes, a resistance heating element or other temperature control devices welded to the inner tank.
  • Other variants on the proposed invention can consist of using one single spacer as a conical ring or a concave disk between the interior bottom plate 3 and the exterior bottom plate 8 instead of individual spacer pieces 16 . This is useful in long containers to impart stresses in a radial direction to the tank axle 5 between the inner tank 2 , 3 and the outer enclosure 6 .
  • the shock-absorbing spacer pieces 16 a may also come as liquid-filled cases or flexible tubing for construction with a very large hollow space 10 . With this type of spacer pieces 16 a and filling of the hollow space 10 , the inner container 2 , 3 can be stored so safely that it can even be made of a brittle material such as glass.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Packages (AREA)
US10/334,957 2002-10-11 2002-12-31 Double-walled tank container Abandoned US20040069779A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/254,204 US8381937B2 (en) 2002-10-11 2005-10-18 Double-walled tank container

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEDE20215657.5 2002-10-11
DE20215657U DE20215657U1 (de) 2002-10-11 2002-10-11 Doppelwandiger Tankcontainer

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/254,204 Continuation-In-Part US8381937B2 (en) 2002-10-11 2005-10-18 Double-walled tank container

Publications (1)

Publication Number Publication Date
US20040069779A1 true US20040069779A1 (en) 2004-04-15

Family

ID=31896483

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/334,957 Abandoned US20040069779A1 (en) 2002-10-11 2002-12-31 Double-walled tank container
US11/254,204 Active 2028-02-06 US8381937B2 (en) 2002-10-11 2005-10-18 Double-walled tank container

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/254,204 Active 2028-02-06 US8381937B2 (en) 2002-10-11 2005-10-18 Double-walled tank container

Country Status (7)

Country Link
US (2) US20040069779A1 (de)
EP (1) EP1407981B1 (de)
AT (1) ATE475609T1 (de)
DE (2) DE20215657U1 (de)
DK (1) DK1407981T3 (de)
ES (1) ES2348441T3 (de)
SI (1) SI1407981T1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050252792A1 (en) * 2005-04-13 2005-11-17 Stennes Mark A Shipping and storage containers
US8881925B1 (en) * 2007-04-09 2014-11-11 John R. Toscano, Inc. Protective steel membrane system and method of erection for secondary containment for an above ground storage tank

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SE0300009D0 (sv) * 2003-01-03 2003-01-03 Bomill Ab Sorting Device
US20070181583A1 (en) * 2006-02-08 2007-08-09 George Zacharias Portable double-walled fuel tank
DE102010054585B4 (de) 2010-12-15 2019-04-25 Thielmann Ag Behälteranordnung für Transportbehälter
DE102010054584B4 (de) * 2010-12-15 2017-06-08 Thielmann Ag Doppelwandiger Behälter
DE102012109015B3 (de) * 2012-09-25 2013-12-05 WEW Westerwälder Eisenwerk GmbH Tankcontainer
US10202236B2 (en) 2014-05-06 2019-02-12 JWF Industries Portable vertical fluid storage tank
US11091317B2 (en) 2014-05-06 2021-08-17 Jwf Industries, Inc. Vertical fluid storage tank with connecting ports
USD819778S1 (en) 2014-05-08 2018-06-05 JWF Industries Vertical fluid storage tank
CN104192452B (zh) * 2014-08-28 2017-04-05 中车齐齐哈尔车辆有限公司 一种罐式集装箱及其罐体与框架的连接件
CN105947461B (zh) * 2016-05-28 2019-01-11 徐静恒 雨水罐筒体的封头
DE102016013207A1 (de) 2016-11-08 2018-05-09 GBT-Bücolit GmbH Doppelwandiger Tankcontainer zur Langzeitlagerung von korrosiven Flüssigkeiten
US11959595B2 (en) * 2020-09-15 2024-04-16 Hyundai Mobis Co., Ltd. Apparatus for fixing pressure vessel
CN116969075B (zh) * 2023-09-22 2023-12-08 靖江市亚泰物流装备有限公司 一种罐式集装箱用调温系统

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US5643411A (en) * 1992-10-09 1997-07-01 Rayonier Inc. Process for operating a wood pulp digester sampling device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050252792A1 (en) * 2005-04-13 2005-11-17 Stennes Mark A Shipping and storage containers
US7631758B2 (en) 2005-04-13 2009-12-15 Vaporlok Technology, Llc Shipping and storage containers
US20100083621A1 (en) * 2005-04-13 2010-04-08 Vaporlok Technology, Llc. Shipping and storage containers
US8047367B2 (en) 2005-04-13 2011-11-01 Vaporlok Technology, Llc Shipping and storage containers
US8881925B1 (en) * 2007-04-09 2014-11-11 John R. Toscano, Inc. Protective steel membrane system and method of erection for secondary containment for an above ground storage tank

Also Published As

Publication number Publication date
DE50312926D1 (de) 2010-09-09
EP1407981A2 (de) 2004-04-14
ATE475609T1 (de) 2010-08-15
US20060096991A1 (en) 2006-05-11
EP1407981B1 (de) 2010-07-28
US8381937B2 (en) 2013-02-26
DK1407981T3 (da) 2010-11-22
DE20215657U1 (de) 2004-02-19
SI1407981T1 (sl) 2010-12-31
EP1407981A3 (de) 2005-03-30
ES2348441T3 (es) 2010-12-07

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