EP3191380B1 - Revêtement anti-fuites pour réservoir, procédé d'introduction de celui-ci - Google Patents

Revêtement anti-fuites pour réservoir, procédé d'introduction de celui-ci Download PDF

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Publication number
EP3191380B1
EP3191380B1 EP15771851.1A EP15771851A EP3191380B1 EP 3191380 B1 EP3191380 B1 EP 3191380B1 EP 15771851 A EP15771851 A EP 15771851A EP 3191380 B1 EP3191380 B1 EP 3191380B1
Authority
EP
European Patent Office
Prior art keywords
tank
cover
leak protection
supporting frame
protection lining
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.)
Active
Application number
EP15771851.1A
Other languages
German (de)
English (en)
Other versions
EP3191380A1 (fr
Inventor
Markus Lechthaler
Ermanno RADICE
Peter Michael WERTH
Marco Fabiano
Giancarlo COLABUFALO
Reinhard Flachs
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.)
Wolftank-Adisa Holding AG
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
Publication of EP3191380A1 publication Critical patent/EP3191380A1/fr
Application granted granted Critical
Publication of EP3191380B1 publication Critical patent/EP3191380B1/fr
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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
    • B65D90/04—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
    • B65D90/02—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
    • B65D90/22—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
    • B65D2590/00—Component parts, details or accessories for large containers
    • B65D2590/0075—Repairing or refitting kit
    • 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
    • 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
    • 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
    • B65D90/10—Manholes; Inspection openings; Covers therefor

Definitions

  • the present invention relates to a leak protection liner for a tank and to a method of introducing it into the tank.
  • a method for introducing such leak protection linings in the tank according to the preamble of claim 1 and such a leak protection lining according to the preamble of claim 12 are known from US 2011/0305409 A1 known.
  • Leak-proof linings are used for refurbishing leaky tanks or retrofitting single-walled tanks with double-wall leak detection. In the latter, a cavity between the liner and tank wall is established with a spacer layer between the liner and tank wall, evacuated, and monitored for a pressure change indicative of a potential leak.
  • prefabricated inflatable leak protection liners adapted to the inner shape of the tank to be lined have already been proposed ( DE 33 20 867 A1 .
  • EP 2 690 036 A1 which are discharged in a pressureless state through the manhole in the tank and then inflated to avoid entering the tank with the associated high occupational safety requirements.
  • the invention has for its object to provide a leak protection lining and a method for its introduction into a tank, which overcome the said disadvantages of the prior art.
  • a fixed to the shell or integrated therein pressurizable scaffold is used, which - when it with a pressurized fluid such as air, gas, liquid, foam or the like. is filled - the inner shape of the tank approaches and thus pulls the envelope into this shape or tensioned.
  • a pressurized fluid such as air, gas, liquid, foam or the like.
  • the shell is inflated after or even during the pressurization (s) of the scaffold with comparatively lower pressure or slower or delayed, the weight of the shell when erecting the scaffold is carried.
  • the invention obviates the need for separate auxiliary structures for pre-positioning the shell and achieves perfect alignment of the shell for the subsequent (or assistive already started) inflation process which applies the leak-resistant liner to all interior sides of the tank through the self-erecting scaffold.
  • the process of the invention can be performed in a few steps and requires only a separate source of pressurized fluid for the scaffold to pressurize it earlier, harder or faster than the envelope.
  • the pressurized fluid source for the scaffold may be, for example, a pneumatic compressor or a hydraulic pump or over corresponding fluid circuits are derived from the source of pressurized fluid which serves to inflate the envelope.
  • At least some of the tube segments of the scaffold are separately pressurizable and connected to separately controllable pressure fluid sources, so that the scaffold can be selectively erected successively.
  • the scaffold can in particular have at least one straight tube segment, for example, along the bottom of a lying-cylindrical or cuboid tank to lie, and at least two normal extending annular tube segments, for example, be pressurized only after the pressurization of the straight tube segment and so the Pull sleeve upwards.
  • a preferred embodiment of the leak-proofing liner having at least two further annular tubular segments closely adjacent to each other to form an annular gap is capable of receiving a reinforcing rib therebetween to sandwich the shell Damage caused by the reinforcement bar.
  • Tube segments which come to rest at the locations of webs, gaps, etc. of the tank inner wall, can optionally also be foamed up after erecting the scaffold in order to protect the casing there permanently.
  • Tube segments without such a permanent protective function are preferably evacuated after erecting the scaffold and inflating the sheath so that they collapse and do not consume valuable tank interior.
  • the sheath also has a neck for lining a dome of the tank and is introduced into the tank via the dome in a collapsed and / or coiled state and secured with its neck to the tank dome.
  • the scaffold has a collar-shaped tube segment, which is located at the neck of the neck to the Protecting or reinforcing the casing at the transition between tank and tank dome.
  • the envelope is preferably made of an airtight film, in particular plastic film, and provided on its outer side with a spacer layer.
  • the spacer layer may be formed, for example, by nubs applied or formed on the film or by an air-permeable nonwoven fabric.
  • the casing can be provided on its outside with a suction line, which opens into the spacer layer at the bottom of the tank, for example, at the bottom of the tank, and a pressure measuring line, which opens into the spacer layer, in particular at the top of the tank between casing and tank wall be.
  • These cables can be routed to the neck of the shell to deploy and connect over the dome.
  • the method is used to completely refurbish a tank without the need to get into the tank by applying a sealing and / or anti-corrosive layer to the interior surface of the tank prior to introduction of the leak guard liner.
  • a sealing and / or anti-corrosive layer is particularly useful when the leak guard liner is used as the inner wall of a double wall leak guard monitoring system to achieve sealing of the inner surface of the tank used as the outer wall of the double wall leak guard monitoring system.
  • said layer is sprayed by a robot or robot arm placed in the tank, which is a completely "unmanned" remediation process, i. without the need for dangerous tank operation.
  • any leaking areas of the tank can be filled with a sealant by means of the robot or robot arm before applying the layer.
  • a sprayable and self-curing epoxy resin is preferably used, e.g. via spray nozzles of the robot or robot arm is sprayed.
  • the shell can be additionally provided with an inner coating or inner shell to increase their chemical resistance, in particular gasoline resistance.
  • the inner coating or sheath may have already been applied to the inner side of the casing or inserted into it prior to the introduction of the leak protection lining, or may also be applied to the inner side or inflated therein after the leakage protection lining has been mounted in the tank in a separate step.
  • the invention provides a leak-proofing liner according to claim 12 for a tank comprising a collapsible shell adapted to the inner shape of the tank to be lined and provided with a support framework of pressurizable tube segments which, when pressurized, envelope the envelope at least approximately to said inner shape spans, wherein according to the invention, the scaffold is connected to at least a first source of pressurized fluid and the sheath to a second source of pressurized fluid with a comparatively lower pressure or slower or later pressure build-up.
  • a 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, for example, the shape of a cuboid or (here :) a lying cylinder with cambered ends 3, 4 and a dome 5, through which the tank can be entered.
  • the opening 6 of the tank dome 5 is just sufficient, for example about 60 cm in diameter.
  • the tank 1 can have a volume of 10 - 50 m 3 or more.
  • Conventional fixtures such as level sensor, vents, reinforcing bars, etc. of the tank 1 are in the Fig. 1 and 2 not shown for clarity.
  • a leak-proofing lining 7 is shown, which is introduced into the tank 1 in order to line it.
  • the leak-proofing lining 7 can be used, for example, for sealing a tank 1 that has become leaky or making it resistant to aggressive liquids to be picked up.
  • the leak protection lining 7 has a flexible, collapsible and cleansingetzblasbare shell 8 made of a suitable material for the purposes mentioned, for example, a plastic film made of PVC or the like. with a wall thickness of eg 1 - 3 mm.
  • the sheath 8 is as well as possible adapted to the inner shape of the tank 1 to be lined and also equipped with an (optional) neck 9, which lines the dome 5 of the tank 1 and, for example, with an intermediate ring, flange or the like. can be attached to the upper end of the dome 5.
  • the casing 8 may additionally be provided with an inner coating or inner casing to increase its chemical resistance, for example gasoline resistance, for example with a polyamide coating, which may also be added later, after mounting the leak protection lining 7 in the tank 1, applied inside or can be inflated therein.
  • the leak protection lining 7 can be used not only to refurbish or increase the resistance of a tank 1, but also to construct a double wall leakage protection monitoring system by keeping the envelope 8 at a small distance from the inside of the tank wall 2 to form a cavity 10 therebetween ,
  • the cavity 10 can be 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, so that an increase in the negative pressure or falling of the overpressure, a leak in the shell 8 and / or the tank wall 2 as known in the art.
  • a spacer layer 11 is used, which can be pre-assembled with the leak protection lining 7.
  • spacer layer 11 is applied directly to the outside of the shell 8, for example in the form of an air-permeable nonwoven with a wall thickness of 2-3 mm.
  • the spacer layer 11 could also by a nubbed sheet or directly from the shell 8 formed nubs, ribs or the like. are formed, which establish the cavity 10 between the tank wall 2 and shell 8.
  • the leak protection lining 7 can have a suction line 12 which opens out on the outside of the casing 8 into the spacer layer 11, preferably on the underside thereof; and the pressure monitoring of the cavity 10 a preferably at its top opening pressure measuring line 13.
  • the suction and the pressure measuring line 13 are led out on the outside or inside of the shell 8 to the neck 9 and the dome 5 from the tank 1 and to a corresponding leak protection monitoring device (not shown) connected.
  • the leak protection lining 7 is introduced into the tank 1 via the dome 5 in a collapsed or pressureless state, in particular folded up and / or rolled up.
  • the shell 8 together with its optional spacer layer 11 for the subsequent inflation in the tank 2 serve the following measures.
  • the casing 8 is equipped with a support framework 14 made of tube segments 15-23, which are provided by a pressure fluid source 24 (FIG. Fig. 1 ) can be acted upon via corresponding connecting lines 25 with a pressurized fluid.
  • the pressurized fluid may be compressed air, gas, water, hydraulic oil, foam material, etc.
  • the source of pressurized fluid 24 may be, for example, a compressor, a gas cylinder, a hydraulic pump, a foam reservoir, etc.
  • the tube segments 15 - 23 are arranged in the support frame 7, that this roughly approximates the inner shape of the tank 2 in the manner of a net grid.
  • a straight tube segment 15 along the longitudinal extension or the bottom of the tank 1 and two annular tube segments 17, 22 arranged at the ends 3, 4 of the tank 1 are used.
  • another straight tube segment 16 may be used along the top of the tank 1.
  • further annular tube segments 18-21 may be distributed throughout the length of the straight tube segment 15, as discussed in greater detail below.
  • a separate, approximately collar-shaped tube segment 23 can be used around the neck of the neck 9 to disguise the transition between tank wall 2 and dome 5 of the tank 1, which could otherwise damage the leak protection lining 7.
  • the support frame 14 or the tube segments 15 - 23 may be applied to the inside and / or outside of the shell 8, for example, welded, or directly from the material the envelope 8 formed, for example by folds or folds, which are separated with appropriate welds.
  • tube segments 15-23 may be pressurized separately or together.
  • some or more of the tube segments 15-23 may be internally connected; in the simplest case, a single tube is shaped and laid so that it forms the various tube segments 15 - 23 in one go.
  • individual or some of the tube segments 15-23 may be joined together to form a separately pressurizable pressure circuit.
  • the pressurized fluid source 24 can have a plurality of outlets or connection lines 25, 25 ', 25 ", which can feed the respective pressure circuits individually, for example, the lower straight tube segment 15 - optionally together with further lateral straight tube segments (not shown) - a first pressure circuit which is pressurized first via a first connecting line 25, the (optional) upper straight tube segment 16, a second pressure circuit, which is secondarily pressurized via a second connecting line 25 ', and the upstanding annular tube segments 17-22 a third pressure circuit, which is pressurized via a third feed line 25 "as last, later or slower, in order to erect the support frame 15 successively.
  • Fig. 4 shows an exemplary passage through the neck 9 and the Dom 5 for the suction line 12, the pressure measuring line 13, the feed lines 25, 25 ', 25 "for the various pressure circuits of tube segments 15 - 23 and the feed line 27 for inflating the envelope 8, which may be formed by the neck itself.
  • the support frame 14 can be pressurized separately relative to the interior of the casing 8. After introducing the leakage protection lining 7 into the tank ( Fig. 1 ), the support frame 14 is first erected by pressurization, and only then is the casing 8 inflated via the neck 9. For this purpose, a second pressure fluid source 26 can be used, which feeds compressed air into the neck 9 of the casing 8 via the connection line 27.
  • the support frame 14 is subjected to an internal pressure of 2-3 bar and at the same time-or with a time delay or with slower pressure build-up-the envelope 8 is inflated with an internal pressure of 1 bar.
  • Fig. 5 shows a situation in which a pair of annular tube segments 20, 21 between them forms an annular gap 29, which closely receives such a reinforcing web 28 of the tank wall and the sleeve 8 protective distance from the web 28.
  • the spacer layer 11 may be between the shell 8 and the tube segments 20, 21 or between the tube segments 20, 21 and the web 28.
  • the scaffold 14 may be evacuated to collapse its tube segments 15-23 and not to waste any interior in the tank 1.
  • Protective tube segments such as the pairs 18/19, 20/21 around the reinforcing webs 28, may be left pressurized or permanently sealed with e.g. self-curing foam material are foamed.
  • foamed tube segments can also be used in other locations of gaps, grooves, protrusions, etc., of the tank wall 2, which could injure the leak-proof lining 7, in particular its casing 8.
  • a robot 33 (or even a robot arm, not shown) is introduced into the tank 1 via the opening 6 of the tank dome 5 before the leak protection lining 7 is introduced.
  • the robot 33 can be moved autonomously in the tank 1, for example by means of wheels 34, and has e.g. rotating spray arms 35.
  • the spray arms 35 are mounted on a carrier 36 which can be opened out of the robot 33 by means of a pivot bearing 37 and pivot piston 38 or otherwise extendable out of the robot 33.
  • the robot 33 In the collapsed or retracted state of the carrier 36 with the spray arms 35, the robot 33 can be passed through the opening 6, for example, lowered on a rope. Subsequently, the spray arms 35 are erected or extended by extending the piston 38 and then set in rotation. Supply lines 39 for feeding the spray arms 35 as well as for controlling and for driving the robot 33 can in this case via the opening 6 to the outside to a supply and control device of the robot 33 (not shown).
  • a sprayable material e.g. self-hardening epoxy resin
  • a camera 40 on the robot 33 can be used for the exact positioning and control of the robot 33.
  • any leaks in the inner surface 31, such as cracks, crevices, etc., may optionally be leveled, e.g. with a putty or putty that is applied via corresponding nozzles, spatulas or arms of the robot 33.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (20)

  1. Procédé d'introduction d'un revêtement de protection anti-fuites (7) dans un réservoir (1), comprenant :
    la préparation d'une enveloppe (8), pouvant s'affaisser, adaptée à la forme intérieure du réservoir (1), laquelle est munie d'une armature de support (14) à base de segments de tuyau (15 à 23) pouvant être mis sous pression, et laquelle, dans l'état de soumission sous pression, peut tendre l'enveloppe (8) à ladite forme intérieure au moins de manière approximative ;
    l'introduction de l'enveloppe (8) à l'état affaissé avec son armature support (14) à l'état non mis sous pression par le biais d'un orifice (6) du réservoir (1) dans le réservoir (1) ; et
    la mise sous pression de l'armature de support (14) avec au moins un fluide sous pression, caractérisé en ce que
    l'armature de support (14) est mise sous pression avec l'au moins un fluide sous pression au moyen d'une première source de fluide sous pression (24) séparée raccordée à l'armature de support (14) jusqu'à ce que l'enveloppe (8) se tende contre ladite forme intérieure ;
    où l'enveloppe (8) est gonflée après ou déjà pendant la mise sous pression de l'armature de support (14) avec une pression comparativement plus faible, ou plus lentement, ou de manière décalée dans le temps, au moyen d'une seconde source de fluide sous pression (26) raccordée à l'enveloppe (8).
  2. Procédé selon la revendication 1, caractérisé en ce que, lors de la mise sous pression de l'armature de support (14), au moins deux segments de tube (15 - 23) sont mis sous pressions différentes, ou sont mis sous pression avec des vitesses différentes, ou avec des décalages dans le temps différents.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'une armature de support (14) avec au moins un segment de tuyau (15, 16) rectiligne et au moins deux segments de tuyau en forme d'anneau (17 à 22) s'étendant de manière normale par rapport à celui-ci sont employés.
  4. Procédé selon l'une des revendications 1 - 3, caractérisé en ce qu'au moins un des segments de tuyau (15 - 23) est ensuite évacué.
  5. Procédé selon l'une des revendications 1 - 4, caractérisé en ce qu'au moins un des segments de tuyau (18 - 21) est ensuite soumis à un moussage.
  6. Procédé selon l'une des revendications 1 - 5, caractérisé en ce que l'enveloppe (8) est introduite dans le réservoir (1) dans un état replié et/ou enroulé par un dôme (5) du réservoir (1) et une collerette (9) de l'enveloppe (8) est fixée sur le dôme (5) du réservoir (1).
  7. Procédé selon l'une des revendications 1 - 6, permettant de réhabiliter un réservoir, caractérisé en ce qu'avant l'introduction du revêtement de protection anti-fuites (7), une couche (32) assurant l'étanchéité et/ou protégeant contre la corrosion est appliquée sur la surface intérieure (31) du réservoir (1).
  8. Procédé selon la revendication 7, caractérisé en ce que ladite couche (32) est pulvérisée par un robot (33) ou un bras de robot introduit dans le réservoir (1).
  9. Procédé selon la revendication 8, caractérisé en ce qu'avant l'application de la couche (32) des endroits non étanches éventuels du réservoir (1) sont mastiqués avec un produit d'étanchéité à l'aide du robot (33), respectivement du bras de robot.
  10. Procédé selon l'une des revendications 7 - 9, caractérisé en ce qu'en tant que couche (32), on emploie une résine époxy pulvérisable et auto-durcissable.
  11. Procédé selon l'une des revendications 7 à 10, caractérisé en ce qu'après le gonflement, l'enveloppe (8) est pourvue d'un revêtement intérieur ou d'une enveloppe intérieure pour l'augmentation de sa résistance chimique.
  12. Revêtement de protection anti-fuites pour un réservoir, comprenant une enveloppe (8) pouvant s'affaisser, pour l'adaptation à une forme intérieure d'un réservoir (1) à revêtir, laquelle est munie d'une armature de support (14) à base de segments de tuyau (15 - 23) pouvant être mis sous pression, pour une adaptation au moins approximative de l'enveloppe (8) à ladite forme intérieure dans l'état de mise sous pression,
    caractérisé en ce
    que l'armature de support (14) est raccordée au moins à une première source de fluide sous pression (24) séparée et que l'enveloppe (8) est raccordée à une seconde source de fluide sous pression (26) avec une pression plus faible ou un établissement de pression plus lent ou plus tardif comparativement à la première source de fluide sous pression.
  13. Revêtement de protection anti-fuites selon la revendication 12, caractérisé en ce qu'au moins deux des segments de tuyau (15 - 23) sont mis sous pression de manière séparée l'un de l'autre.
  14. Revêtement de protection anti-fuites selon la revendication 12 ou 13, caractérisé en ce que l'armature de support (14) comprend au moins un segment de tuyau (15, 16) rectiligne et au moins deux segments de tuyau (17 - 22) en forme d'anneau s'étendant normalement par rapport à celui-ci, de préférence aux extrémités du segment de tuyau (15, 16) rectiligne.
  15. Revêtement de protection anti-fuites selon la revendication 14, caractérisé en ce qu'au moins deux autres segments de tuyau (18 - 21) en forme d'anneau sont distribués sur la longueur du segment de tuyau (15, 16) rectiligne et en l'occurrence chaque fois deux, respectivement l'un très proche de l'autre, moyennant la formation d'une fente annulaire (29).
  16. Revêtement de protection anti-fuites selon la revendication 15, caractérisé en ce que les autres segments de tuyau (18 - 21) en forme d'anneau sont soumis à un moussage dans la position de montage du revêtement de protection anti-fuite (7).
  17. Revêtement de protection anti-fuites selon l'une des revendications 12 - 16, caractérisé en ce que l'enveloppe (8) est fabriquée à base d'un film étanche à l'air et porte une couche d'espacement (11) sur sa face extérieure, de préférence des noppes ou un non-tissé perméable à l'air.
  18. Revêtement de protection anti-fuites selon l'une des revendications 12 - 17, caractérisé en ce que l'enveloppe (8) a une collerette (9) pour le revêtement d'un dôme (5) du réservoir (1), où un segment de tuyau (23) en forme de col de l'armature de support (14) se situe à la naissance de la collerette (9).
  19. Revêtement de protection anti-fuites selon la revendication 18, caractérisé en ce que l'enveloppe (8) est munie d'une conduite d'aspiration (12) et d'une conduite de mesure de la pression (13) sur sa face extérieure qui mènent jusqu'à la collerette (9).
  20. Revêtement de protection anti-fuites selon l'une des revendications 12 - 19, caractérisé en ce que l'enveloppe (8) est munie d'un revêtement intérieur ou d'une enveloppe intérieure pour l'augmentation de sa résistance chimique.
EP15771851.1A 2014-09-10 2015-08-25 Revêtement anti-fuites pour réservoir, procédé d'introduction de celui-ci Active EP3191380B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50625/2014A AT515803B1 (de) 2014-09-10 2014-09-10 Leckschutzauskleidung für einen Tank, Verfahren zu deren Einbringen und Verfahren zum Sanieren eines Tanks
PCT/AT2015/050204 WO2016037201A1 (fr) 2014-09-10 2015-08-25 Revêtement anti-fuites pour réservoir, procédé d'introduction de celui-ci et procédé de remise en état d'un réservoir

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CN111672309A (zh) * 2020-07-03 2020-09-18 安徽六国化工股份有限公司 一种脱硫塔防泄漏装置及方法

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DE3320867A1 (de) * 1983-06-09 1984-12-13 Wülfing und Hauck GmbH + Co KG, 3504 Kaufungen Verfahren zur erleichterung der montage einer innenverkleidung in einem fluessigkeitstank und dafuer geeignete innenverkleidung
DE20104828U1 (de) * 2001-03-20 2001-07-05 Utek Umweltschutztechnologien GmbH, 06785 Oranienbaum Verbindungssystem zur Befestigung einer flexiblen Kunststoffolie zur Leckschutzauskleidung an der Innenseite der Tankwandung eines Lagertanks
DE202010018175U1 (de) * 2010-05-27 2014-09-17 Fenotec Gmbh Leckschutzsysteme Vlies zum Auskleiden eins zylindrischen Lagerbehälters und danach hergestellte Lagerbehälter
US8899835B2 (en) * 2010-06-15 2014-12-02 David D. Russell Self-supporting bladder system for a double wall tank
DE202012011477U1 (de) * 2012-07-25 2013-10-29 Jörn von Bornstädt Mannloser Einbau Tankinnenhülle

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AT515803A4 (de) 2015-12-15
EP3191380A1 (fr) 2017-07-19
AT515803B1 (de) 2015-12-15

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