WO2017214646A1 - Feuille de protection contre les fuites pour réservoir à fluide - Google Patents

Feuille de protection contre les fuites pour réservoir à fluide Download PDF

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Publication number
WO2017214646A1
WO2017214646A1 PCT/AT2017/060105 AT2017060105W WO2017214646A1 WO 2017214646 A1 WO2017214646 A1 WO 2017214646A1 AT 2017060105 W AT2017060105 W AT 2017060105W WO 2017214646 A1 WO2017214646 A1 WO 2017214646A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
tank
leak protection
protection film
film according
Prior art date
Application number
PCT/AT2017/060105
Other languages
German (de)
English (en)
Inventor
Markus Lechthaler
Ermanno RADICE
Peter Werth
Original Assignee
Wolftank-Adisa Holding Ag
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 Wolftank-Adisa Holding Ag filed Critical Wolftank-Adisa Holding Ag
Priority to RU2018141214A priority Critical patent/RU2734886C2/ru
Priority to EP17719990.8A priority patent/EP3468897B1/fr
Publication of WO2017214646A1 publication Critical patent/WO2017214646A1/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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/04—Linings
    • 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
    • B65D90/04—Linings
    • B65D90/046—Flexible liners, e.g. loosely positioned in the container
    • 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
    • B65D90/22—Safety features
    • B65D90/24—Spillage-retaining means, e.g. recovery ponds
    • 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
    • B65D90/22—Safety features
    • B65D90/46—Arrangements for carrying off, or preventing the formation of electrostatic charges
    • 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
    • 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
    • B65D2590/00—Component parts, details or accessories for large containers
    • B65D2590/02—Wall construction
    • B65D2590/04—Linings
    • B65D2590/043—Flexible liners
    • B65D2590/046—Bladders

Definitions

  • the present invention relates to a leak protection film for lining a fluid tank, which film is made of a flexible, airtight, fluid-resistant material and adapted to the inner shape of the tank.
  • leaktight sheets are used to refurbish leaking fluid tanks or to retrofit single-walled fluid tanks with a double-wall leakage protection monitoring system.
  • the airtight, fluid-resistant film is kept spaced from the wall of the tank to create a cavity between the film and the tank wall.
  • the cavity can be set during operation of the tank under negative pressure or overpressure and monitored by means of a pressure measuring device to constant pressure. An increase in the overpressure or decrease in the overpressure detected by the pressure measuring device indicates a leak in the film and / or the tank wall.
  • a spacer layer which establishes the desired cavity
  • an airtight, fluid-resistant cover layer e.g.
  • a spacer layer is alternatively known as the use of napped plastic composites or air-permeable nonwovens;
  • a cover layer are manifold airtight, fluid-resistant materials or composite materials in use, which are often applied in multiple layers.
  • the invention has for its object to provide a leak protection film for lining a fluid tank, with which the fluid tank can be lined in a simple process and then suitable for use of a double-wall leak protection monitoring system.
  • a leak protection film of the type mentioned above which is characterized in that the film on its the tank wall zuwen- Denden outside directly from sheet material formed nubs, which nubs the film in the lined tank on the tank wall supporting, whereby a continuous cavity can be formed between the tank wall and the film.
  • Such a film is inexpensive, can also be produced in high flexibility, and is very durable due to its simple structure.
  • the nubs do not run the risk of detachment from the rest of the film due to their direct formation from sheet material. Nevertheless, a secure support of the film on the tank wall and thus the patency of the cavity are ensured, so that the fluid tank is by lining alone with the said leak protection film for double-wall tank.
  • the film on its outer side directly from the film material molded ribs on which the knobs are formed.
  • the film material molded ribs on which the knobs are formed.
  • the film material in between the ribs Troughs are made thinner, so that the film is in total much lighter and more flexible.
  • the ribs are arranged parallel to each other in at least two intersecting groups, a nub being formed at each point of intersection.
  • the ribs are arranged in honeycomb structure, wherein at each honeycomb corner point a nub is formed. Both embodiments of the ribs cause a uniformly high compressive strength of the entire film, without reducing their flexibility.
  • the honeycomb structure allows a particularly material-saving and mechanically particularly stable leak protection film.
  • the film including the knobs, preferably has a total thickness of a few tenths of a millimeter to a few millimeters, more preferably between one and three millimeters. Films of such total thickness can be easily produced from a variety of materials and reduce the tank volume only slightly. In addition, films of such thickness are already sufficient to form a double-walled tank for a leakage protection monitoring system.
  • the film has at a rib between 70% and 90% of its total thickness and lying in between see ribs trough between 50% to 70% of their total thickness.
  • the nubs have a mutual distance of a few tenths of a millimeter to a few millimeters, preferably between one-half and about two millimeters. Even a thin, flexible film thus achieves a uniformly high compressive strength.
  • adjacent knobs can each have the same mutual distances in all directions;
  • the distances between nubs of the film which are adjacent in different directions are preferably of different sizes. FER In this way, different flexibility can be imparted to the film in different directions, in particular if the nubs are formed at intersections of ribs.
  • Foil on its side facing away from the dimples rough with a surface roughness between 20 microns and 200 microns, preferably about 100 microns.
  • a rough inside is easier or more durable to provide with an optional coating.
  • the film is coated on its inside with an electrically conductive cover layer.
  • an electrically conductive cover layer When properly grounded, promotes discharge of electrostatic charges and thereby reduces the risk of ignition, e.g. when assembly or maintenance personnel enter the tank.
  • a film material is a variety of flexible natural or plastics in question, which can be selected depending on the aufnacdem from the tank fluid.
  • the film material is a polyurethane.
  • Polyurethane films are petrol, diesel and mineral oil resistant, very flexible, easy to process and durable.
  • the film can be introduced into the fluid tank in a collapsed state and expandable therein. In this way, the fluid tank can be lined without the need for assembly personnel inside the tank is required.
  • FIG. 1 shows a lined with a leak protection film according to the invention double wall fluid tank.
  • FIG. 2a and 2b shows a detail of a first variant of the leak protection film of Fig. 1 in plan view (Fig. 2a) and as detail A of Figure 1 in section ( Figure 2b) along the section line BB of Fig. 2a;
  • FIG. 3a and 3b show a section of a second variant of the leak protection film of Figure 1 in plan view ( Figure 3a) or as detail A of Figure 1 in section ( Figure 3b) along the section line C-C of Fig. 3a.
  • FIG. 4a and 4b a detail of a third variant of the leak protection film of Fig. 1 in plan view (Fig. 4a) or as detail A of Fig. 1 in section (Fig. 4b) along the section line D-D of Fig. 4a.
  • a fluid tank 1 is shown, as used for example as an underground fuel storage tank in gas stations.
  • the tank 1 has a tank wall 2 with e.g. the shape of a cuboid, a ball or (here :) a lying cylinder with cambered ends 3, 4 and an opening 5, through which the tank 1 can be filled, emptied and / or even entered if necessary.
  • Conventional installations such as level sensors, ventilation openings, reinforcing webs, etc., of the tank 1 are not shown in FIG. 1 for the sake of clarity.
  • the tank 1 according to FIG. 1 is lined with a leak protection film 6.
  • the film 6 is made of an airtight material which is resistant to the fluids to be absorbed.
  • the film 6 - with the exception of the opening 6 - completely adapted to the inner shape of the tank 1.
  • the film 6 is introduced, for example, in a collapsed state through the opening 5 in the tank interior and expanded therein.
  • the film 6 is inflated inside the tank and / or evacuated the space between the film 6 and tank wall 2 according to a method known in the art. Assembly personnel is not required in the tank interior.
  • the material of the film 6 is flexible. The more flexible the film 6 is, the easier it can be to insert through the opening 5 and expand inside the tank, but the lower the mechanical strength of the film 6.
  • the fluid tank 1 has a continuous cavity 7 between the tank wall 2 and the foil 6.
  • the tank 1 is therefore double-walled, so that a double-wall leak protection monitoring system can be constructed, if desired or required.
  • the cavity 7 is set during operation of the tank 1 under reduced pressure (evacuated) or overpressure (pressurized) and monitored by means of a pressure measuring device to constant pressure. If an increase in the negative pressure or a drop in the overpressure is registered, it is concluded that there is a leak in the tank wall 2 and / or the film 6.
  • the film 6 has, the film according to a first embodiment not shown, at its the tank wall 2 is to face outside S a knob 8, which are formed directly from the sheet material itself ( "in one piece”).
  • the nubs 8 support 6 of the tank wall 2, when the tank 1 is finished, so that said continuous cavity 7 is formed between the tank wall 2 and the film 6 by means of the nubs 8.
  • the film 6 has reinforcing ribs 9 on its outer side S a, which faces the tank wall 2, in particular to increase the compressive strength of the film 6.
  • the nubs 8 are formed, so that the film 6 is supported in the operation of the tank 1 exclusively by the nubs 8, not by the ribs 9, on the tank wall 2.
  • Between adjacent ribs 9 lie troughs 10 in which the film 6 has its smallest wall thickness w having.
  • This smallest wall thickness w at a lying between ribs 9 trough 10 is - in the unloaded state of the film 6 - for example, between 50% and 70% of the total thickness d of the film 6;
  • the wall thickness w 'of the film 6 can be, for example, between 70% and 90% of the total thickness d of the film 6.
  • the ribs 9 can all be arranged parallel to one another and also parallel to one another in waves or zigzags and / or interrupted, if desired, in order, for example, to be more flexible at folds of the collapsed film 6 or at edges in the tank wall 2.
  • the ribs 9 are arranged parallel to each other in two groups G 1 , G 2 , wherein the ribs 9 of a group G 1 intersect those of the other group G 2 .
  • a nub 8 is formed, which stands apart from them.
  • the ribs 9 form parallelograms - in the example of FIGS. 2a and 2b diamonds - in other cases, rectangles or squares, with intermediate depressions 10 and nipples 8 formed at the corner points.
  • Figs. 3a and 3b The example of Figs. 3a and 3b is that of Figs. 2a and
  • the ribs 9 can form more than three groups G 1 , G 2 , .-, generally G i , and / or can cross each other in some other way, so that they, for example - unlike in the illustrated examples - no congruent Forming depressions 10. Also, individual ribs 9 or a group G i parallel ribs 9 could be less pronounced, ie less raised, or the ribs 9 may be arranged at all irregular.
  • the ribs 9 of the example of FIGS. 4a and 4b are arranged in honeycomb structure.
  • the section of Fig. 4b the different wall thicknesses w and w 'of the film 6 in the region of a trough 10 and the ribs 9 can be seen.
  • Other honeycomb-like structures such as a sequence of four and octagons od. Like., Are alternatively possible.
  • the film 6 is made for example of a polyurethane or other flexible, airtight, fluid-resistant material. It can have a total thickness d - including the dimples 8 - of a few tenths of a millimeter to a few millimeters, preferably between one and three millimeters.
  • the nubs 8 also have a mutual spacing a of a few tenths of a millimeter to a few millimeters, preferably between half and about two millimeters, the distances a between nubs 8 of one and the same film 6 adjacent in different directions being generally different due to their structuring are big.
  • the cross-section of the studs 8 can be round or - as in the illustrated examples - oval, but also have a different shape.
  • the film 6 may be smooth or rough on its inner side S i facing away from the dimples 8 and in the latter case has, for example, a roughness depth, ie a difference between maximum and minimum surface height, between 20 ⁇ m and 200 ⁇ m, preferably approximately 100 ⁇ m.
  • the film 6 is further coated on its inside S i with an electrically conductive cover layer 11 (FIG. 4 b), eg a metal foil, an electrical conductive paste or the like.

Landscapes

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

Abstract

La présente invention concerne une feuille de protection contre les fuites destinée à revêtir un réservoir à fluide (1), laquelle feuille (6) est réalisée dans un matériau flexible, étanche à l'air et résistant aux fluides et épouse la forme intérieure du réservoir (1). L'invention est caractérisée en ce que cette feuille (6) présente sur sa face extérieure (Sa) faisant face à la paroi (2) du réservoir des nopes (8) formées directement à partir du matériau de la feuille, ces nopes (8) soutenant la feuille (6) sur la paroi (2) du réservoir (1) lorsque ce dernier est revêtu, de sorte qu'une cavité continue (7) peut être créée entre la paroi (2) du réservoir et la feuille (6).
PCT/AT2017/060105 2016-06-13 2017-04-24 Feuille de protection contre les fuites pour réservoir à fluide WO2017214646A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
RU2018141214A RU2734886C2 (ru) 2016-06-13 2017-04-24 Пленка для защиты от утечки для резервуара для рабочей среды
EP17719990.8A EP3468897B1 (fr) 2016-06-13 2017-04-24 Feuille de protection contre les fuites pour réservoir à fluide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50534/2016 2016-06-13
ATA50534/2016A AT518760B1 (de) 2016-06-13 2016-06-13 Leckschutzfolie für einen Fluidtank

Publications (1)

Publication Number Publication Date
WO2017214646A1 true WO2017214646A1 (fr) 2017-12-21

Family

ID=58640649

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2017/060105 WO2017214646A1 (fr) 2016-06-13 2017-04-24 Feuille de protection contre les fuites pour réservoir à fluide

Country Status (4)

Country Link
EP (1) EP3468897B1 (fr)
AT (1) AT518760B1 (fr)
RU (1) RU2734886C2 (fr)
WO (1) WO2017214646A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147089B (de) * 1960-05-19 1963-04-11 Hovalwerk Ag Ospelt Lagerbehaelter mit Innenblase fuer Fluessigkeiten, insbesondere fuer Heizoel
CA943884A (en) * 1971-02-25 1974-03-19 Arthur P. Martin Collapsible suction-wall liner
GB2314767A (en) * 1996-07-01 1998-01-14 Jerome Friedman Method for (re)lining a swimming pool
WO2014117772A1 (fr) * 2013-02-04 2014-08-07 Fenotec Gmbh Leckschutzsysteme Revêtement intérieur pour un réservoir ou un récipient et agencement

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
DE1812891A1 (de) * 1968-12-05 1970-06-18 Gerhard Weiske Zwischenlage fuer eine Leckschutzauskleidung bei Lagerbehaeltern
CH603443A5 (en) * 1976-09-14 1978-08-15 Schaerer Max Alexander Leak-proof double walled liquid storage container
US4613922A (en) * 1984-01-11 1986-09-23 Neo Vac Aktiengesellschaft Double-grounded wall tank, and method of its manufacture
CH672110A5 (fr) * 1986-04-07 1989-10-31 Adisa Entwicklungs Ag
EP0754635A1 (fr) * 1995-07-17 1997-01-22 Adisa Service und Entwicklungs AG Réservoir à double paroi et son procédé de fabrication
PL1602597T3 (pl) * 2004-04-30 2007-05-31 Wolftank Systems S P A Powłoka wewnętrzna zbiornika z wypukłościami dystansowymi
CH705340B1 (de) * 2007-02-02 2013-02-15 Ono Waterprot Gmbh Doppelwandiger Tank.
EP2055404B1 (fr) * 2007-10-29 2010-05-05 OnO Waterprotection GmbH Feuille à protubérances et son procédé de fabrication
EP2067719B1 (fr) * 2007-12-05 2012-02-01 OnO Waterprotection GmbH Structure d'espacement pour un revêtement de detection de fuites d'un réservoir, revêtement et réservoir munis d'une telle structure
RU108028U1 (ru) * 2010-09-17 2011-09-10 Открытое акционерное общество "Первая грузовая компания" Мягкий вкладыш в вагон
ITVR20120180A1 (it) * 2012-09-07 2014-03-08 Ag Metodo per realizzare una parete interna di metallo in un serbatoio e serbatoio avente una doppia parete.
CN205087390U (zh) * 2015-11-06 2016-03-16 洛阳展腾焊材有限公司 一种立式玻璃钢储罐
CN207712732U (zh) * 2017-12-28 2018-08-10 大连百利天华制药有限公司 冻干粉生产线上注射用水储罐

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147089B (de) * 1960-05-19 1963-04-11 Hovalwerk Ag Ospelt Lagerbehaelter mit Innenblase fuer Fluessigkeiten, insbesondere fuer Heizoel
CA943884A (en) * 1971-02-25 1974-03-19 Arthur P. Martin Collapsible suction-wall liner
GB2314767A (en) * 1996-07-01 1998-01-14 Jerome Friedman Method for (re)lining a swimming pool
WO2014117772A1 (fr) * 2013-02-04 2014-08-07 Fenotec Gmbh Leckschutzsysteme Revêtement intérieur pour un réservoir ou un récipient et agencement

Also Published As

Publication number Publication date
RU2734886C2 (ru) 2020-10-23
RU2018141214A3 (fr) 2020-09-04
EP3468897B1 (fr) 2020-04-01
EP3468897A1 (fr) 2019-04-17
AT518760B1 (de) 2018-04-15
AT518760A1 (de) 2017-12-15
RU2018141214A (ru) 2020-05-25

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