EP3984914A1 - Cylindrical tank with vertical axis, with a shell being a wall consisting of sheets welded with vertical joints only - Google Patents

Cylindrical tank with vertical axis, with a shell being a wall consisting of sheets welded with vertical joints only Download PDF

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Publication number
EP3984914A1
EP3984914A1 EP21182933.8A EP21182933A EP3984914A1 EP 3984914 A1 EP3984914 A1 EP 3984914A1 EP 21182933 A EP21182933 A EP 21182933A EP 3984914 A1 EP3984914 A1 EP 3984914A1
Authority
EP
European Patent Office
Prior art keywords
shell
tank
profile
joint
vertical
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.)
Withdrawn
Application number
EP21182933.8A
Other languages
German (de)
French (fr)
Inventor
Krzysztof Jan Diduch
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.)
Poner Sp Z OO
Original Assignee
Poner Sp Z OO
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 Poner Sp Z OO filed Critical Poner Sp Z OO
Publication of EP3984914A1 publication Critical patent/EP3984914A1/en
Withdrawn legal-status Critical Current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
    • B65D90/08—Interconnections of wall parts; Sealing means therefor
    • 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
    • B65D88/06—Large containers rigid cylindrical
    • B65D88/08—Large containers rigid cylindrical with a vertical axis
    • 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
    • B65D90/023—Modular panels
    • B65D90/026—Parallel slats
    • 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

Definitions

  • the invention is related to a cylindrical tank with vertical axis, used for storing liquids, especially fuel, characterized in that the welded joints of the tank shell (wall) are vertical, and on the outer side of the wall (shell) the joints are covered by a tightly welded steel profile, which enables the identification of a leakage occurring on the shell joint and which protects against a leak from inside of the tank in case of a leakage in the joint at the tank (wall).
  • Prior art describes various solutions for cylindrical tanks that are used for storing liquids.
  • the most common method of joining steel elements composing a tank shell is welding.
  • the literature describes tanks whose shell consists of rectangular metal sheets interconnected with welded joints arranged vertically and horizontally to form a tank wall made of rectangles as a chequerboard.
  • Prior art also describes methods for structures strengthening, for example with the use of a double shell or by installing a ring around it.
  • the purpose of the invention is to develop a tank with a simple design that will additionally ensure quick leakage detection.
  • the essence of the invention is a cylindrical tank consisting of a roof, shell and bottom, wherein the shell consists of rectangular appropriately dimensioned metal sheets which are interconnected with a joint that runs only vertically, and the joint has a tightly fixed profile running along it, which encloses the joint from outside.
  • a nozzle is installed in the bottom part of the profile, with a detector that indicates any leakage.
  • a detector is installed at the bottom part of the profile, especially a liquid detector or a differential pressure detector.
  • the cross section of the profile has a trapezoidal shape.
  • the cross section of the profile has a semicircular shape.
  • the profile is tightly fixed with a joint.
  • the metal sheets are rounded along their short side.
  • the advantage of the tank according to the invention is its simple design.
  • the profiles tightly fixed along each joint in the shell prevent any spillage of liquid outside in case of unsealing.
  • the detectors especially liquid (e.g. moisture) detectors
  • the profile is enclosed both at the top and at the bottom. This allows to eliminate any effects of weather conditions on the tank leakage control, as any signs of moistness will come from the inside of the tank. Therefore, the profile has two roles: it acts as an additional seal (another shell is not required) and, together with the liquid detectors, enables continuous and immediate detection of any leakage.
  • the tank shown in Fig. 1 consists of a convex roof 1, shell 2 and bottom 3.
  • the roof, shell and bottom are interconnected with joint 5.
  • the shell consists of rectangular metal sheets which are interconnected with a joint, especially welded, vertically along the long edge.
  • the shell components may be rectangular metal sheets rounded along the short side.
  • Profile 6 is fixed with a weld along each vertical weld.
  • the cross section of the fixed profile has a trapezoidal shape.
  • the profile may be rounded. It is important that the profile be fixed tightly, i.e. sealed at the top, at the bottom and along both long edges. With the sealing, any liquid (e.g. moisture) inside the profile, indicated by an appropriate detector installed there, should be interpreted as a leakage in the corresponding weld (not as, for example, the effect of weather conditions such as rain or snow).
  • Each profile is enclosed both at the top, at the level of upper capacity of the tank, and at the bottom.
  • a liquid detector e.g. moisture detector, is installed at the bottom of the profile.
  • the tank according to the invention is used for liquid storage. Its simple design allows for the storage of 100 m 3 to 100,000 m 3 of liquid or even more. Owing to the quick leakage detection system, the tank may be used for storing flammable liquids, especially fuel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention is related to a cylindrical tank with vertical axis, consisting of a roof (1), shell (2) and bottom (3), wherein the shell consists of rectangular metal sheets (4), and the vertical edges of the sheets (4) are interconnected with a joint (5), characterized in that the joints interconnecting the sheets composing the tank shell are vertical joints only, and along the joint (5) there is a tightly fixed profile (6) enclosed at the top and at the bottom, which encloses the joint (5) from outside.

Description

  • The invention is related to a cylindrical tank with vertical axis, used for storing liquids, especially fuel, characterized in that the welded joints of the tank shell (wall) are vertical, and on the outer side of the wall (shell) the joints are covered by a tightly welded steel profile, which enables the identification of a leakage occurring on the shell joint and which protects against a leak from inside of the tank in case of a leakage in the joint at the tank (wall).
  • Prior art describes various solutions for cylindrical tanks that are used for storing liquids. The most common method of joining steel elements composing a tank shell is welding. The literature describes tanks whose shell consists of rectangular metal sheets interconnected with welded joints arranged vertically and horizontally to form a tank wall made of rectangles as a chequerboard. Prior art also describes methods for structures strengthening, for example with the use of a double shell or by installing a ring around it.
    • Document US20080314908A1 shows a cylindrical tank for liquid storage at low temperature. The tank shell is made of metal sheets joined with vertical welds. The shell has a layered design, i.e. it consists of two layers of metal. A concrete core is placed between these layers, which provides insulation and adequate stiffness.
    • Patent EP3063455B1 describes a tank for storing liquids (e.g. cryogenic fluids). The tank has a cylindrical shape and is made of metal, in particular of steel, stainless steel, aluminium, titanium, or an alloy of these metals. Its walls are made of double shell. Structural components of the shell are welded together vertically. Moreover, the tank has an internal reinforcement in the form of ribs.
    • Document CA2853007A1 shows a cylindrical tank with horizontal axis, suited for placement on a rail carriage. Its shell consists of longitudinal components welded together along the cylinder axis.
    • (D4) Document GB1080043A describes a tank with a double shell. The first, inner shell consists of metal sheets welded together along vertical edges. U-shaped metal chutes sealed from the bottom are located along the welds. Chute arms are welded outside the tank. Thus a void is created, and the structure is used for detecting leakage at the points of welding. The other, outer shell acts as thermal insulation.
    • (D1) Document US2333792A describes a tank for storing liquids with a high vapour pressure. Its shell is cylindrical in shape and made of rectangular components welded along the vertical edge. The tank has a convex roof and bottom, reinforced with radially arranged beams. Optionally, for additional reinforcement, columns arranged cylindrically (on the internal side of the shell) extend between the upper and lower beams.
  • Despite many differences in the design of the tanks, there is no solution where a single-shell tank with vertical axis, whose capacity may reach 10,000 m3 or more, has a simple and, at the same time, resistant structure. Prior art describes tanks having complex, multi-element designs, for example a reinforcing framework, external rings around the shell, or a double shell.
  • An additional problem related to the storage of liquid materials is that any leakage in the tank must be quickly detected. Unsealing generally occurs at the points of welding. It is extremely rare that sheets are broken outside their joints.
  • The purpose of the invention is to develop a tank with a simple design that will additionally ensure quick leakage detection.
  • The essence of the invention is a cylindrical tank consisting of a roof, shell and bottom, wherein the shell consists of rectangular appropriately dimensioned metal sheets which are interconnected with a joint that runs only vertically, and the joint has a tightly fixed profile running along it, which encloses the joint from outside.
  • A nozzle is installed in the bottom part of the profile, with a detector that indicates any leakage.
  • Preferably, a detector is installed at the bottom part of the profile, especially a liquid detector or a differential pressure detector.
  • Preferably, the cross section of the profile has a trapezoidal shape.
  • Preferably, the cross section of the profile has a semicircular shape.
  • Preferably, the profile is tightly fixed with a joint.
  • Preferably, the metal sheets are rounded along their short side.
  • The advantage of the tank according to the invention is its simple design. In addition, the profiles tightly fixed along each joint in the shell prevent any spillage of liquid outside in case of unsealing. Additionally, as the detectors, especially liquid (e.g. moisture) detectors, are arranged at the bottom of each profile, any leakage will be detected immediately. Another advantage of the invention is that the profile is enclosed both at the top and at the bottom. This allows to eliminate any effects of weather conditions on the tank leakage control, as any signs of moistness will come from the inside of the tank. Therefore, the profile has two roles: it acts as an additional seal (another shell is not required) and, together with the liquid detectors, enables continuous and immediate detection of any leakage.
  • The preferable embodiment of the cylindrical tank with vertical axis according to the invention is presented in the figures of the drawing, where:
    • Fig. 1 illustrates the design scheme of the vertical-axis tank in a side view
    • Fig. 2 shows the A-A section depicting the gap-closing profile
  • The following designations are used in the drawings: 1 ― roof, 2 ― shell, 3 ― bottom, 4 ― sheets composing the shell, 5 ― joint (weld), 6 ― profile.
  • The tank shown in Fig. 1 consists of a convex roof 1, shell 2 and bottom 3. The roof, shell and bottom are interconnected with joint 5. In this embodiment, the shell consists of rectangular metal sheets which are interconnected with a joint, especially welded, vertically along the long edge.
  • In another embodiment, depending on the tank dimensions, the shell components may be rectangular metal sheets rounded along the short side.
  • Profile 6 is fixed with a weld along each vertical weld. In this embodiment, as shown in Fig. 2, the cross section of the fixed profile has a trapezoidal shape. In another embodiment, the profile may be rounded. It is important that the profile be fixed tightly, i.e. sealed at the top, at the bottom and along both long edges. With the sealing, any liquid (e.g. moisture) inside the profile, indicated by an appropriate detector installed there, should be interpreted as a leakage in the corresponding weld (not as, for example, the effect of weather conditions such as rain or snow).
  • Each profile is enclosed both at the top, at the level of upper capacity of the tank, and at the bottom. A liquid detector, e.g. moisture detector, is installed at the bottom of the profile.
  • The tank according to the invention is used for liquid storage. Its simple design allows for the storage of 100 m3 to 100,000 m3 of liquid or even more. Owing to the quick leakage detection system, the tank may be used for storing flammable liquids, especially fuel.

Claims (6)

  1. A cylindrical tank with vertical axis, consisting of a roof (1), shell (2) and bottom (3), wherein the shell consists of rectangular metal sheets (4), and the vertical edges of the sheets (4) are interconnected with a joint (5), characterized in that the joints interconnecting the sheets composing the tank shell are vertical joints only, and along the joint (5) there is a tightly fixed profile (6) enclosed at the top and at the bottom, which encloses the joint (5) from outside.
  2. The tank according to claim 1, characterized in that a detector is installed at the bottom of the profile, especially a liquid detector or a differential pressure detector.
  3. The tank according to claim 1 or 2, characterized in that the cross section of the profile has a trapezoidal shape.
  4. The tank according to claim 1 or 2, characterized in that the cross section of the profile has a semicircular shape.
  5. The tank according to any of claims 1―4, characterized in that the profile is tightly fixed with a joint.
  6. The tank according to any of claims 1―5, characterized in that the metal sheets are rounded along their short side.
EP21182933.8A 2020-10-15 2021-06-30 Cylindrical tank with vertical axis, with a shell being a wall consisting of sheets welded with vertical joints only Withdrawn EP3984914A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20461569 2020-10-15

Publications (1)

Publication Number Publication Date
EP3984914A1 true EP3984914A1 (en) 2022-04-20

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EP21182933.8A Withdrawn EP3984914A1 (en) 2020-10-15 2021-06-30 Cylindrical tank with vertical axis, with a shell being a wall consisting of sheets welded with vertical joints only

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2333792A (en) 1941-08-06 1943-11-09 Pittsburgh Des Moines Company Pressure container
GB1080043A (en) 1965-07-13 1967-08-23 Conch Int Methane Ltd Improvements in and relating to bulk storage tanks for liquids
DE3038517A1 (en) * 1980-03-20 1981-10-01 Nordon-Industrias Metalúrgicas S. A., Sao Paulo Liq. storage tank for on-site assembly - has segment panels with L=shaped brackets bolted together followed by internal welding of panel seams
CA1120131A (en) * 1981-01-09 1982-03-16 Nicholas E. Butts Subterranean tank leak detection system and method
WO2008154697A1 (en) * 2007-06-20 2008-12-24 Gram Engineering Pty Limited Storage tank
US20080314908A1 (en) 2004-06-25 2008-12-25 Det Norske Veritas As Tank For Storing of Fluid, Preferably For Fluids at Low Temperatures
CA2853007A1 (en) 2013-06-12 2014-12-12 Samuel, Son & Co., Limited Tank car construction using longitudinal curved segments
WO2017200503A2 (en) * 2016-05-20 2017-11-23 Uslu Ahmet Turan Prefabricated and modular storage tanks for storing water or other liquids
EP3063455B1 (en) 2014-09-09 2018-01-24 MT Aerospace AG Container for holding and storing liquids and viscous substances, in particular cryogenic fluids, and method for the production thereof, and use thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2333792A (en) 1941-08-06 1943-11-09 Pittsburgh Des Moines Company Pressure container
GB1080043A (en) 1965-07-13 1967-08-23 Conch Int Methane Ltd Improvements in and relating to bulk storage tanks for liquids
DE3038517A1 (en) * 1980-03-20 1981-10-01 Nordon-Industrias Metalúrgicas S. A., Sao Paulo Liq. storage tank for on-site assembly - has segment panels with L=shaped brackets bolted together followed by internal welding of panel seams
CA1120131A (en) * 1981-01-09 1982-03-16 Nicholas E. Butts Subterranean tank leak detection system and method
US20080314908A1 (en) 2004-06-25 2008-12-25 Det Norske Veritas As Tank For Storing of Fluid, Preferably For Fluids at Low Temperatures
WO2008154697A1 (en) * 2007-06-20 2008-12-24 Gram Engineering Pty Limited Storage tank
CA2853007A1 (en) 2013-06-12 2014-12-12 Samuel, Son & Co., Limited Tank car construction using longitudinal curved segments
EP3063455B1 (en) 2014-09-09 2018-01-24 MT Aerospace AG Container for holding and storing liquids and viscous substances, in particular cryogenic fluids, and method for the production thereof, and use thereof
WO2017200503A2 (en) * 2016-05-20 2017-11-23 Uslu Ahmet Turan Prefabricated and modular storage tanks for storing water or other liquids

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