EP0060084B1 - Réservoir - Google Patents

Réservoir Download PDF

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Publication number
EP0060084B1
EP0060084B1 EP82301079A EP82301079A EP0060084B1 EP 0060084 B1 EP0060084 B1 EP 0060084B1 EP 82301079 A EP82301079 A EP 82301079A EP 82301079 A EP82301079 A EP 82301079A EP 0060084 B1 EP0060084 B1 EP 0060084B1
Authority
EP
European Patent Office
Prior art keywords
bag
tank
storage tank
ribs
walls
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
Application number
EP82301079A
Other languages
German (de)
English (en)
Other versions
EP0060084A1 (fr
Inventor
Daniel Cecil Edward Fish
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.)
Leigh Flexible Structures Ltd
Original Assignee
Leigh Flexible Structures Ltd
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 Leigh Flexible Structures Ltd filed Critical Leigh Flexible Structures Ltd
Priority to AT82301079T priority Critical patent/ATE14004T1/de
Publication of EP0060084A1 publication Critical patent/EP0060084A1/fr
Application granted granted Critical
Publication of EP0060084B1 publication Critical patent/EP0060084B1/fr
Expired 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
    • B65D90/12—Supports
    • B65D90/20—Frames or nets, e.g. for flexible containers
    • B65D90/205—Frames or nets, e.g. for flexible containers for flexible containers, i.e. the flexible container being permanently connected to the frame
    • 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
    • B65D88/16—Large containers flexible

Definitions

  • This invention relates to storage tanks and particularly to tanks for storing large quantities of liquid such as swimming pools, reservoirs of drinking water, fish rearing tanks etc.
  • a drinking water reservoir to be constructed in a remote location requires materials that are easily transported. It is however desirable that the flexible material should be able to collapse inwardly when the tank is empty, otherwise it will be vulnerable to wind damage. Furthermore, the flexible material should fold inwardly without such crumpling or creasing that causes folds of materials to be trapped when the tank is refilled.
  • United Kingdom Patent Specification No. 578,855 dicloses a flexible container of the type indicated in the prior art portion of claim 1.
  • the container which is designed for the storage of a bulk quantity of liquids such as petrol, is in the form of flexible liquid-containing envelope or bag which collapses inwardly when empty. When the bag is filled the walls of the container are raised outwardly.
  • the container disclosed is however relatively low and long in relation to its base area, making it suitable for transportation. Such relative dimensions are not appropriate for many other liquid storage tanks where it is necessary to both reduce the floor space occupied by the tank or minimise the liquid surface area to reduce evaporation.
  • the lower containers are described in the aforementioned specification are subject to the problem that the wall of the container will fold as it collapses. These folds remain when the container is filled, being trapped by the liquid.
  • the present invention is characterised by the inclusion in the collapsible walls of the bag of a plurality of horizontally-spaced rigid or semi-rigid ribs fastened thereto and extending generally up the wall or walls, thereby acting to prevent trapped folds in the bag as the tank is filled.
  • the construction of a water storage tank is begun with the assembly of a circular steel wire surrounding wall 1.
  • the steel wire is preferably of the galvanised, welded form sold under the trade mark "Weldmesh" which can be transported in rolls typically 3 feet (0.91 m) wide and 3 feet (0.91 m) in diameter.
  • the circular wall 1 formed from the wire mesh is located and fixed by means of a number of wooden posts 2 which are driven into the ground adjacent the outer surface of the wire mesh wall 1, the wire mesh being stapled to the posts. Where the ground is uneven, the top edge of the wall 1 is levelled by sinking the bottom edge into small trenches where necessary e.g. the trench 3.
  • the wall 1 is completed when two ends of wire mesh from the roll are joined together.
  • a large, closed cylindrical lining bag 5 is positioned within the circular wire mesh wall 1.
  • the liner is made from flexible material such as PVC-coated polyester cloth, hypalon-coated nylon cloth or other similar material which is chosen to suit the type of liquid that the container is intended to hold.
  • the liner 5 is secured to the post 2 at ground level but is not connected to the wire mesh wall 1 so that when the tank is empty is will tend to collapse inwardly.
  • a number of lengths of polythene piping 6 or other rigid or semi-rigid members are fastened to the side of the lining material 5 and when the tank is full these pipes 6 are upright.
  • the pipes 6 may be connected to the flexible material along their lengths, or alternatively a number of pockets 5a may be formed in the lining into respective ones of which the pipes can be inserted.
  • Figure 3 illustrates the manner in which the pipes 6 bend and support the side wall of the lining when the tank is partially full. This illustration shows an open-topped version of the tank.
  • the outlet for liquid from the tank is provided in the bottom surface of the flexible liner by an outlet orifice cut from the bottom of the liner.
  • a flange 7 is located over the orifice on the inside of the tank and this is in register with a flange 8 which is located beneath the lower surface of the tank opposite the flange 7.
  • the flanges are then screwed or bolted together with lining material surrounding the orifice being held between them.
  • the lower flange 8 has permanently connected to it an elbow pipe fitting 9 situated beneath ground level.
  • a flexible suction hose 10 is connected to the fitting 9 and extends out from under the edge of the tank. The material of the hose 10 is chosen to be compatible with the liquid stored in the tank.
  • a wooden post 11 stands up next to the tank and supports the upright portion of the hose 10.
  • the upright portion of the hose 10 may be connected to the post 11 by a short chain 12 at its upper end.
  • the hose thus secured has its open end above the level of liquid in a tank and the pipe may then be used for filling or emptying if the chain 12 is unlocked.
  • This arrangement avoids the need for a stop valve but in an alternative version the post 11 is replaced by a stop valve.
  • the hose is connected to a more elaborate pipe system.
  • a simple system is provided which can be installed by unskilled persons.
  • the top surface of the flexible liner has an opening 13 which is directly above the orifice enabling the internal flange 7 to be readily located.
  • the opening 13 has connected around it a fabric sleeve 14 which is closed by clamping bars.
  • a polystyrene cylinder 20 having an outside diameter to permit it to slide as a close fit into the sleeve 14 is used as a plug and secured by a clamping band 21 around the sleeve.
  • the cylinder 20 is arranged to project down below the lower end of the sleeve so that the lid or cover of the tank is slightly raised at this place to encourage air to move to this spot.
  • the polystyrene cylinder 20 has a central axial bore 22 through it, which intersects several radial bores 23 made at the level of the lid or cover of the tank, thus allowing trapped air to vent freely to atmosphere.
  • a simple mushroom type cover 24 may be fixed on top of the plug to stop rain water or pollutants entering the vent.
  • the fabric sleeve could in an alternative version be replaced by a rigid inspection cover but whatever arrangement is used, it should permit ventilation of gas or air particularly when the tank is being filled.
  • a storage tank in accordance with the invention may be constructed with rigid ribs 6, for example, wooden battens, in place of the polythene tubes in the example described above.
  • rigid ribs 6 for example, wooden battens
  • Such rigid members do not bend and peel away from the support wall when the tank is emptied but tilt inwardly. It has been found that in most applications the semi-rigid bendable ribs are preferable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Bag Frames (AREA)

Claims (8)

1. Réservoir de stockage pour de grandes quantités de liquide comprenant un sac de matière souple, imperméable (5), comportant une paroi ou des parois latérales pouvant s'affaisser vers l'intérieur et se relever vers l'extérieur lorsque le récipient est respectivement vidé et rempli, caractérisé en ce que les parois affaissables du sac comportent une série de membrures rigides ou semi-rigides espacées horizontalement (6) fixées à celles-ci, et s'étendant géneralement jusqu'à la paroi ou jusqu'aux parois, ces membrures étant destinées à empêcher le maintien de plis dans le sac lorsque le réservoir est rempli.
2. Réservoir de stockage suivant la revendication 1, caractérisé en ce que les membrures (6) sont élastiquement déformables dans la mesure ou elles s'incurvent vers l'intérieur sous la poids de la matière du sac non supportée, lorsque le réservoir est vidé, sans la formation de plis ou de froissements.
3. Récipient de stockage suivant la revendication 2, caractérisé en ce que les membrures (6) comprennent des tubes de polyéthylène.
4. Réservoir de stockage suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que les membrures comprennent des éléments séparés et en ce que le sac comprend une série de poches (5a) dans lesquelles sont situés les éléments de manière à les fixer au sac.
5. Réservoir de stockage suivant l'une quelconque des revendications 1 à 4, caractérisé par l'incorporation d'une pario (1) ou de parois de support extérieures essentiellement rigides.
6. Récipient de stockage suivant la revendication 5, caractérisé en ce que la paroi de support extérieure (1) comprend une toile métallique.
7. Réservoir de stockage suivant la revendication 6, caractérisé en ce que la paroi de support extérieure est formée d'une seule longueur de matière dont les extrémités libres se superposent et sont serrées entre des barres de serrage verticales.
8. Récipient de stockage suivant l'une quelconque des revendications précédentes, caractérisé en ce que le sac est un récipient essentiellement fermé.
EP82301079A 1981-03-03 1982-03-03 Réservoir Expired EP0060084B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82301079T ATE14004T1 (de) 1981-03-03 1982-03-03 Speicherbehaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8106606 1981-03-03
GB8106606 1981-03-03

Publications (2)

Publication Number Publication Date
EP0060084A1 EP0060084A1 (fr) 1982-09-15
EP0060084B1 true EP0060084B1 (fr) 1985-06-26

Family

ID=10520091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82301079A Expired EP0060084B1 (fr) 1981-03-03 1982-03-03 Réservoir

Country Status (3)

Country Link
EP (1) EP0060084B1 (fr)
AT (1) ATE14004T1 (fr)
DE (1) DE3264366D1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3310721A1 (de) * 1982-05-05 1983-11-10 Andreas Von Dipl.-Rer.Pol. Bennigsen-Mackiewicz An traggestellen aufhaengbarer flexibler silo
GB2162232B (en) * 1984-07-27 1988-10-26 James Edward Doyle Large cylindrical vessels
DE3439574A1 (de) * 1984-10-29 1986-05-07 Dietrich A.H. 2091 Wulfsen Kirchner Grossbehaelter fuer schuettfaehige, pastoese und schlammfoermige materialien und verwendungsverfahren fuer dieselben
NL8503003A (nl) 1985-02-21 1986-09-16 Schelfhorst Hendrik W Op een vaste plaats op de grond te plaatsen reservoir en werkwijze voor het vervaardigen daarvan.
GB2409702A (en) * 2003-12-31 2005-07-06 Nicholas John Trincas Self erecting rainwater collection tank
AT515754B1 (de) * 2014-05-14 2016-06-15 Ronald Staber Füllhilfe für Falttank
CN112173469B (zh) * 2020-11-05 2025-04-08 武汉工程大学 一种横截面为梅花形的大型储罐
CN114212392B (zh) * 2021-12-17 2023-02-03 徐州久山塑业有限公司 一种双层集装袋

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US500773A (en) * 1893-07-04 Netti

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB161877A (en) * 1920-06-30 1921-04-21 Herbert Frederick Steuart Butt Improvements in transportable containers for water and other liquids
GB578855A (en) * 1944-02-25 1946-07-15 Leonard Shakesby Improvements in or relating to flexible containers for liquids
US2690778A (en) * 1950-10-14 1954-10-05 Dunlop Rubber Co Container for storage of liquids
DE906895C (de) * 1952-03-11 1954-03-18 Ziegler Schlauch Feuerloesch Fluessigkeitsbehaelter, insbesondere Speicher- und Ausgleichsbehaelter fuer Loeschwasser
DE2535225C3 (de) * 1975-08-07 1979-04-05 Klaus 3593 Edertal Schunke Einrichtung zur Aufzucht, Haltung und Mast von im Wasser lebenden Tieren, insbesondere Fischen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US500773A (en) * 1893-07-04 Netti

Also Published As

Publication number Publication date
DE3264366D1 (en) 1985-08-01
ATE14004T1 (de) 1985-07-15
EP0060084A1 (fr) 1982-09-15

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