EP0069303B1 - Réservoir à double paroi et son procédé de fabrication - Google Patents

Réservoir à double paroi et son procédé de fabrication Download PDF

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Publication number
EP0069303B1
EP0069303B1 EP82105626A EP82105626A EP0069303B1 EP 0069303 B1 EP0069303 B1 EP 0069303B1 EP 82105626 A EP82105626 A EP 82105626A EP 82105626 A EP82105626 A EP 82105626A EP 0069303 B1 EP0069303 B1 EP 0069303B1
Authority
EP
European Patent Office
Prior art keywords
layer
wall
tank
fibers
double
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
EP82105626A
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German (de)
English (en)
Other versions
EP0069303A1 (fr
Inventor
Werner Bachmann
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.)
Adisa Service AG
Neo Vac AG
Original Assignee
Adisa Service AG
Neo Vac 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4274781&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0069303(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Adisa Service AG, Neo Vac AG filed Critical Adisa Service AG
Priority to AT82105626T priority Critical patent/ATE13037T1/de
Publication of EP0069303A1 publication Critical patent/EP0069303A1/fr
Application granted granted Critical
Publication of EP0069303B1 publication Critical patent/EP0069303B1/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
    • B65D90/48—Arrangements of indicating or measuring devices
    • B65D90/50—Arrangements of indicating or measuring devices of leakage-indicating devices
    • B65D90/513—Arrangements of indicating or measuring devices of leakage-indicating devices comprising electrically conductive layers in walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02—Containers for fluids or gases; Supports therefor

Definitions

  • the invention relates to a double-walled tank, in particular for storing petrol, solvents, acids, alkalis and oils, in which a spacer in the form of a spacer-holding metal foil is provided between the outer wall and the inner wall.
  • CH-PS 614 417 therefore provides for the renovation of a single-walled steel tank to introduce individual sheets through the manhole and then to join the individual sheets to form a jacket and two floors, from which a second liquid-tight tank is arranged with an intermediate space to the existing steel tank is formed, which receives the liquid to be stored. Since the inner wall of such a double-walled tank is also electrically conductive, there is no risk of spark formation due to electrostatic phenomena. However, this method of refurbishing tanks is relatively expensive.
  • European application 0 014 491 provides for a double-walled tank, the inner wall of which is made of glass-fiber-reinforced polyester, which has a conductive layer made of chrome-nickel fabric.
  • the production of such a tank by manually applying a laminate made of fiber-reinforced polyester and placing a chromium-nickel fabric on the not yet cured laminate is very labor-intensive and accordingly expensive.
  • the disadvantage here is that it is not possible to check for layer thickness and freedom from pores because the chromium-nickel fabric has to be applied before curing. After installing the chrome-nickel mesh, however, measurement with the spark inductor or with the eddy current device is no longer possible.
  • a storage container made of concrete has become known from DE-AS 2 620 225, which has a multilayer laminated coating of polyester resin on the bottom and on the side walls.
  • a first multi-layer sub-layer made of polyester is attached to the vertical concrete walls.
  • a second multi-layer sub-layer made of polyester faces the interior of the container.
  • All layers of the second sub-layer are electrically weakly conductive because 25% graphite powder has been mixed into the polyester resin.
  • the specific resistance is approximately 5,109 ohms.
  • the admixture of graphite powder is dimensioned according to the information in the publication so that there is no noticeable impairment of the strength and sealing properties of the partial layer. In the event of any electrical charges arising when the fuel tank is being filled, its discharge takes place via a very short path through the second sub-layer.
  • CH-A 517 630 is a liquid container made of concrete with an inner wall e.g. made known from polyester, in which the concrete walls are covered with aluminum foil in order to check the pore freedom of the container walls and to locate any pores by means of a spark inductor. Since the polyester layer on the aluminum foil is not conductive, this container is not suitable for gasoline and similar products with low flash points due to the risk of explosion.
  • the invention therefore provides a double-walled tank in which a spacer in the form of a spacer-holding metal foil is provided between the outer wall and the inner wall in a known manner and which is characterized in that the inner wall consists of a sprayed onto the metal foil, reinforced with fibers and checked for freedom from pores Epoxy layer and an electrically conductive epoxy layer sprayed onto this.
  • the electrically conductive coating avoids electrostatic phenomena, so that the tank according to the invention, like a double-walled steel tank, is largely explosion-proof.
  • the tank according to the invention is cheaper to manufacture than a double-walled steel tank or a double-walled tank, the inner wall of which is made of laminated plastic with a chromium-nickel fabric or a laminated, electrically conductive polyester layer.
  • the use of epoxy with an addition of fibers, for example glass fibers makes it possible to spray on the plastic layer, which takes considerably less time than the hitherto usual lamination processes for polyester.
  • the electrically conductive epoxy layer can be sprayed on, this enables rapid and cheap manufacture.
  • aluminum grits or leaving together with graphite have proven particularly useful.
  • additions made of semolina or nickel leaving, aluminum fibers, soot, copper leaving, copper semolina, copper fibers, brass leaving, brass semolina, brass fibers, carbon fibers or copper powder are silver-plated.
  • the metal foil used as a spacer is advantageously an aluminum knobbed foil.
  • Such foils are easy to process, which is particularly important for renovation work in an underground tank.
  • the invention also relates to a method for producing a double-walled tank.
  • this method is characterized in that the inside of the outer wall is covered with the metal foil, that the epoxy layer reinforced with fibers is sprayed on, that the epoxy layer is checked for freedom from pores and / or layer thickness, and that the electrically conductive coating is applied to the epoxy layer .
  • This process can be carried out with little effort and, because a check for freedom from pores and / or layer thickness is possible, leads to a high quality product.
  • the inside of the outer wall is expediently coated with plastic before the film is inserted. This ensures that there is no leak even after rusting through the steel jacket, which would impair the negative pressure in the space between the outer wall and the inner wall.
  • the drawing shows a section through the wall of a tank installed, for example, in the ground area after its renovation.
  • the reference number 11 denotes the wall made of steel, which after the refurbishment represents the outer wall of a double-walled tank.
  • On the inside of the wall 11 there is an approximately 0.5 to 4 mm thick layer 13, which advantageously consists of epoxy. However, the layer 13 can optionally also be omitted.
  • a plastic layer 19 then follows, which consists of epoxy and also contains glass or other reinforcing fibers for reinforcement. The thickness of this layer is approximately 4 mm.
  • a coating of electrically conductive material is located above this layer 19.
  • An epoxy or polyurethane layer which has an addition of semolina or aluminum leaving and graphite has proven to be expedient.
  • other conductive materials can also be used, e.g. Nickel semolina or nickel leaving, aluminum fibers, graphite, soot, copper leaving, copper grit, copper fibers, brass leaving, brass semolina, brass fibers, carbon fibers or copper powder.
  • the procedure is first to install the nozzles for generating and checking the vacuum, which will be maintained in room 14 after the double-walled tank has been completed.
  • the inside of the steel tank 11 is sandblasted and provided with the epoxy coating 13, if one is desired.
  • the aluminum knobbed film 15 is then inserted, which advantageously has a thickness of 0.2 mm. If the aluminum knobbed film 15 is fixed in place, the epoxy layer 19 is sprayed on. After this layer has hardened, it is checked for freedom from pores, for example with a spark inductor.
  • the layer thickness can be checked by an eddy current device which generates eddy currents in the knobbed film 15.
  • a vacuum of 0.4 to about 0.8 bar is then expediently built up in the intermediate space 14. If these tests give indications of defects in the plastic layer, these defects are corrected.
  • the test of the coating for freedom from pores and layer thickness can be repeated if necessary. If there is certainty about the leak-freeness of the sprayed-on plastic layer that has been checked for pore-freeness, the electrically conductive coating that forms the cover layer is applied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Claims (7)

1. Réservoir à double paroi, en particulier pour le stockage d'essence, de solvants, d'acides, de lessives et d'huiles, dans lequel il est prévu, entre la paroi extérieure (11) et la paroi intérieure, un élément d'écartement sous la forme d'une feuille métallique (15) qui maintient un écartement constant, caractérisé en ce que la paroi intérieure est faite d'une couche de résine époxy (19) appliquée au pistolet sur la feuille métallique (15), renforcée de fibres et vérifiée quant à l'absence de pores, etd'une couche de résine époxy (21) électriquement conductrice, appliquée au pistolet sur cette couche.
2. Réservoir selon la revendication 1, caractérisé en ce que la couche conductrice de résine époxy (21) contient un additif constitué par une matière conductrice.
3. Réservoir selon la revendication 2,caractérisé en ce que l'additif est constitué par de la poussière ou des rognures fines d'aluminium et du graphite.
4. Réservoir selon la revendication 2, caractérisé en ce que l'additif est constitué par de la poussière de nickel, des rognures fines de nickel, des fibres d'aluminium, du graphite, du noir de fumée, des rognures fines de cuivre, de la poussière de cuivre, des fibres de cuivre, des rognures fines de laiton, de la poussière de laiton, des fibres de laiton, des fibres de carbone et de la poudre de cuivre argentée.
5. Réservoir selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la feuille métallique est une feuille à boutons d'aluminium.
6. Procédé pour la fabrication d'un réservoir à double paroi selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la face interne de la paroi extérieure (11) est garnie de la feuille métallique (15), la couche de résine époxy (19) renforcée de fibres est appliquée au pistolet, la couche de résine époxy (19) est vérifiée quant à l'absence de pores et/ou l'épaisseur de couche, et la couche de revêtement électriquement conductrice (21) est appliquée sur la couche de résine époxy (19).
7. Procédé selon la revendication 6, caractérisé en ce qu'avant la pose de la feuille (15), la face interne de la paroi extérieure (11) est revêtue d'une couche de matière synthétique (13).
EP82105626A 1981-07-02 1982-06-25 Réservoir à double paroi et son procédé de fabrication Expired EP0069303B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82105626T ATE13037T1 (de) 1981-07-02 1982-06-25 Doppelwandiger tank und verfahren zur herstellung desselben.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4367/81A CH653643A5 (de) 1981-07-02 1981-07-02 Doppelwandiger tank und verfahren zur herstellung desselben.
CH4367/81 1981-07-02

Publications (2)

Publication Number Publication Date
EP0069303A1 EP0069303A1 (fr) 1983-01-12
EP0069303B1 true EP0069303B1 (fr) 1985-05-02

Family

ID=4274781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105626A Expired EP0069303B1 (fr) 1981-07-02 1982-06-25 Réservoir à double paroi et son procédé de fabrication

Country Status (4)

Country Link
EP (1) EP0069303B1 (fr)
AT (1) ATE13037T1 (fr)
CH (1) CH653643A5 (fr)
DE (1) DE3263379D1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288587A1 (fr) * 1987-04-03 1988-11-02 Rhein-Bonar Kunststoff-Technik Gmbh Réservoir multicouche, en particulier réservoir multicouche en plastique, de préférence réservoir de carburant
FR2638435A1 (fr) * 1988-10-27 1990-05-04 Durand Alain Procede de rehabilitation de reservoirs de stockage, reservoirs obtenus et application au stockage enterre d'hydrocarbure
EP0404611A1 (fr) * 1989-06-22 1990-12-27 Xerxes Corporation Réservoir souterrain en matériaux anticorrosifs avec nervure interne en acier
EP0436210A2 (fr) * 1990-01-03 1991-07-10 Strabag Bau - Ag Récipient de stockage
EP0556824A1 (fr) * 1992-02-19 1993-08-25 Lothar Mansfeld Procédé pour l'application sur une paroi d'une feuille de protection; système muni d'une feuille de protection et de moyens d'ancrage
WO2001028893A1 (fr) 1999-10-20 2001-04-26 Utek Umweltschutztechnologien Gmbh Revetement antifuite pour reservoirs et procede pour equiper des reservoirs d'un tel revetement
US6431387B2 (en) 1998-04-22 2002-08-13 Utek Umweltschutztechnologien Gmbh Flat-bottomed tank and method for fitting it with a leak-proof coating
DE102007029569A1 (de) 2007-06-26 2009-01-08 Elkamet Kunststofftechnik Gmbh Verfahren zur Herstellung von mehrschichtigen Behältern und mehrschichtiger Behälter

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH672110A5 (fr) * 1986-04-07 1989-10-31 Adisa Entwicklungs Ag
DE4003434A1 (de) * 1990-02-06 1991-08-08 Bayer Ag Einwandiger behaelter mit schutzauskleidung
DE9110820U1 (de) * 1991-08-31 1993-01-07 Thöne, Peter, O-6902 Jena Trennfolie
DE4205177A1 (de) * 1992-02-20 1993-08-26 Epowit Bautechnik Gmbh Verfahren zur erzeugung eines doppelwandigen behaelters
AT409621B (de) * 1995-02-22 2002-09-25 Adisa Serv & Entw Ab Verfahren zur herstellung einer auffangwannenauskleidung und wanne mit einer flüssigkeitsdichten auskleidung
DK0758620T3 (da) * 1995-08-14 2003-08-04 Wuelfing & Hauck Gmbh & Co Kg Indvendig beklægning til væske-, især benzintanke og deraf fremstillet tank
AT12428U1 (de) 2010-10-14 2012-05-15 Ono Oil Gmbh Verfahren zum sanieren eines tanks
ES2402283B1 (es) * 2011-09-28 2014-03-04 Construcciones Biovivenda, S.L. Método para eliminar poros en paredes de depósitos para hidrocarburos.
CN106042477B (zh) * 2016-05-30 2019-05-31 深圳市百事达卓越科技股份有限公司 油罐非开挖式改造方法
CN107472734A (zh) * 2016-06-08 2017-12-15 沃尔夫坦克-阿迪萨控股股份公司 箱罐和为箱罐加衬里的方法
CN106182910B (zh) * 2016-06-30 2018-03-16 深圳市百事达卓越科技股份有限公司 油罐非开挖式改造结构
CN106182911B (zh) * 2016-06-30 2018-03-16 深圳市百事达卓越科技股份有限公司 油罐非开挖式改造方法
FR3088079B1 (fr) * 2018-11-07 2021-07-30 Max Perles Et Cie Paroi comportant un support poreux recouvert d’un systeme d’etancheification comportant au moins une couche de primaire electriquement conductrice

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1600433A1 (de) * 1967-03-31 1970-01-08 Disbon Gmbh Chemische Erzeugni Verfahren zum Oberflaechenschutz von Behaeltern aus Stahl und anderen korrosionsanfaelligen Metallen
CH517630A (de) * 1969-12-23 1972-01-15 Borsari & Co Flüssigkeitsbehälter
CH548837A (de) * 1972-03-15 1974-05-15 Kunststoffwerk Ag Verfahren zum auskleiden eines oelbehaelters und nach dem verfahren ausgekleideter oelbehaelter.
DE2620225A1 (de) * 1976-05-07 1977-11-10 Tankbau Gmbh Lagerbehaelter fuer fluessige brennstoffe
CH614417A5 (en) * 1977-03-23 1979-11-30 Neo Vac Und Tank Service Ag Method for producing a leak-proofing lining on an existing, single-walled steel tank, and tank produced according to the method
DE2904578A1 (de) * 1979-01-19 1980-07-31 Borsari & Co Doppelwandiger behaelter und verfahren zu dessen herstellung
EP0047235A1 (fr) * 1980-03-07 1982-03-17 SCHAERER, Max H. Citerne de stockage a double paroi comportant un manteau interieur en matiere plastique

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288587A1 (fr) * 1987-04-03 1988-11-02 Rhein-Bonar Kunststoff-Technik Gmbh Réservoir multicouche, en particulier réservoir multicouche en plastique, de préférence réservoir de carburant
FR2638435A1 (fr) * 1988-10-27 1990-05-04 Durand Alain Procede de rehabilitation de reservoirs de stockage, reservoirs obtenus et application au stockage enterre d'hydrocarbure
EP0404611A1 (fr) * 1989-06-22 1990-12-27 Xerxes Corporation Réservoir souterrain en matériaux anticorrosifs avec nervure interne en acier
EP0436210A2 (fr) * 1990-01-03 1991-07-10 Strabag Bau - Ag Récipient de stockage
EP0436210A3 (en) * 1990-01-03 1992-07-08 Strabag Bau - Ag Storage container
EP0556824A1 (fr) * 1992-02-19 1993-08-25 Lothar Mansfeld Procédé pour l'application sur une paroi d'une feuille de protection; système muni d'une feuille de protection et de moyens d'ancrage
US6431387B2 (en) 1998-04-22 2002-08-13 Utek Umweltschutztechnologien Gmbh Flat-bottomed tank and method for fitting it with a leak-proof coating
WO2001028893A1 (fr) 1999-10-20 2001-04-26 Utek Umweltschutztechnologien Gmbh Revetement antifuite pour reservoirs et procede pour equiper des reservoirs d'un tel revetement
DE19950466A1 (de) * 1999-10-20 2001-05-10 Utek Umweltschutztechnologien Leckschutzauskleidung für Tanks und Verfahren zur Ausrüstung von Tanks mit einer Leckschutzauskleidung
DE19950466C2 (de) * 1999-10-20 2001-08-16 Utek Umweltschutztechnologien Leckschutzauskleidung für Tanks und Verfahren zur Ausrüstung von Tanks mit einer Leckschutzauskleidung
DE102007029569A1 (de) 2007-06-26 2009-01-08 Elkamet Kunststofftechnik Gmbh Verfahren zur Herstellung von mehrschichtigen Behältern und mehrschichtiger Behälter

Also Published As

Publication number Publication date
ATE13037T1 (de) 1985-05-15
DE3263379D1 (en) 1985-06-05
EP0069303A1 (fr) 1983-01-12
CH653643A5 (de) 1986-01-15

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