EP0913341A2 - Garniture intérieure pour réservoirs pour liquides en particulier essence et procédé pour la fabriquer - Google Patents

Garniture intérieure pour réservoirs pour liquides en particulier essence et procédé pour la fabriquer Download PDF

Info

Publication number
EP0913341A2
EP0913341A2 EP98120183A EP98120183A EP0913341A2 EP 0913341 A2 EP0913341 A2 EP 0913341A2 EP 98120183 A EP98120183 A EP 98120183A EP 98120183 A EP98120183 A EP 98120183A EP 0913341 A2 EP0913341 A2 EP 0913341A2
Authority
EP
European Patent Office
Prior art keywords
sections
electrically conductive
inner lining
liquid
seam
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.)
Granted
Application number
EP98120183A
Other languages
German (de)
English (en)
Other versions
EP0913341B1 (fr
EP0913341A3 (fr
Inventor
Erich Hauck
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.)
Wuelfing und Hauck GmbH and Co KG
Original Assignee
Wuelfing und Hauck GmbH and Co KG
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 Wuelfing und Hauck GmbH and Co KG filed Critical Wuelfing und Hauck GmbH and Co KG
Publication of EP0913341A2 publication Critical patent/EP0913341A2/fr
Publication of EP0913341A3 publication Critical patent/EP0913341A3/fr
Application granted granted Critical
Publication of EP0913341B1 publication Critical patent/EP0913341B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D90/04—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
    • B65D90/46—Arrangements for carrying off, or preventing the formation of electrostatic charges

Definitions

  • the invention relates to an inner lining according to the preamble of claim 1. a double-walled liquid tank produced with their help and a method for Production of the lining.
  • Inner linings are supposed to absorb petrol or kerosene required that the inside of the liquid coming into contact with it is sufficient are antistatic to electrical charges and therefore the risk of explosion to avoid. Dangers of this kind exist especially when you commit one with tanks provided with such a lining, since this creates sparks from frictional electricity can form.
  • an inner lining of the type mentioned become (DE 196 21 469 A1), the inner shell of which faces the tank wall A diffusion-proof layer on the outside and on its side facing the tank interior Side has an electrically conductive layer.
  • the inner shell preferably consists of an electrically non-conductive base material, e.g. a thermoplastic polyurethane ester or fluoroplastic film with an electrically conductive inside Polyaniline or soot layer is covered.
  • the application of this electrically conductive layer can e.g. by duplicating or applying a dispersion by doctor blade.
  • the invention has for its object the inner lining of the above Form genus so that it has a sufficient conductivity throughout and the welds have good durability.
  • a dome 2 In the upper end of a substantially cylindrical fuel tank 1 of conventional construction a dome 2 is welded with a flange 3, to which a cover 4 is screwed can be.
  • An intermediate layer 5 is present on the inner wall of the petrol tank 1 an electrically conductive, air-permeable material and a flexible inside Inner cover 6.
  • the intermediate layer 5 In the upper part of the dome 2, the intermediate layer 5 is usually through replaced a layer of foam rubber or the like, so that the space between the inner shell 6 and tank wall is sealed upwards.
  • This layer also serves as Support for a clamping ring 7, by means of which the inner shell 6 is firmly clamped in the dome 2 becomes.
  • a tubular angle piece not shown used, one end of which in a between the tank wall and the intermediate layer 5 formed, enlarged space protrudes, which e.g. from one on the contra-angle attached cover plate is formed.
  • a conventional lock indicator device measuring line for measuring a vacuum connected between the tank wall and the inner shell 6.
  • the gasoline-resistant inner shell 6 in FIG. 2 has on its the Intermediate layer 5 facing outer side on a diffusion-tight layer 6a is resistant to the liquid to be stored, in particular gasoline. this part the inner shell 6 thus ensures the required tightness and durability.
  • a diffusion-tight layer 6a is resistant to the liquid to be stored, in particular gasoline.
  • the inner shell 6 thus ensures the required tightness and durability.
  • On the other hand shows the inner shell 6 on the inside of the tank and with the liquid a layer 6b which also comes into direct contact with the inside is resistant to petrol and also has sufficient electrical conductivity.
  • This Layer 6b is useful by means of an electrically conductive tab made of a metal or Like. Connected, which is led out through the cathedral 2 and grounded there. If necessary the layer 6b on its inside can also be used to improve the grounding Tab-connected strips of conductive material. Layer 6b prevents electrical charges and sparking inside the tank 1.
  • the two-layer inner shell 6 is e.g. made by duplicating from two foils, one of which the properties of layer 6a and the other the properties of Layer 6b has. It is common under "duplication" in plastics technology understood that the two films using pressure and heat with the help of Presses or calenders are brought together so that they form an intimate bond come in.
  • a basic material in the form of a transparent, carrier-free, extruded film made of a thermoplastic Polyurethane with a thickness of 600 ⁇ ⁇ 10% for layer 6a which by duplicating with e.g. 150 ⁇ thick polyurethane ester film is connected, which has been made electrically conductive by the addition of carbon black.
  • the surface with a layer 6b of electrical conductive polyaniline or carbon black is provided.
  • This layer 6b is e.g. in form of a Polyaniline dispersion in a so-called UV binding lacquer that can be hardened with UV light Doctor blades applied and then hardened with UV light.
  • it can be a Soot dispersion in water, which is also e.g. is applied by squeegees.
  • the inner casing 6 For lining the gas tank 1 shown in FIG. 1, it is common for the inner casing 6 to be completely prefabricated or prefabricated by cutting from the finished one Foil material made according to the shape and size of the fuel tank 1 and then through welding processes, as are common in plastics technology get connected.
  • the finished inner shell 6 then has essentially the same shape like the tank 1 in which it is to be used.
  • FIG. 3 different blanks of the inner shell 6 are shown schematically. Especially are several, substantially rectangular for the cylindrical part Longitudinal tracks 8a to 8d are provided, each with one at their longitudinal edges Weld 9 are connected to each other by two edge sections along one e.g. The 20 mm wide strip overlaps one another and then by hot wedge welding be connected to each other. The welding takes place in such a way that initially results in a substantially rectangular tarp that contains all the longitudinal tracks 8a to 8d. 3 are two substantially circular end faces 10a, 10b Inner shell 6 can be seen, the end face 10a is shown in a state that is after cutting and welding correspondingly shaped sheets 11a, 11b results.
  • the end face 10b is provided with a strip of material 12 on its peripheral edge connected.
  • This preferably consists of the same basic material as the rest Parts of the inner shell 6, e.g. a thermoplastic polyurethane, has a width of e.g. 40 mm and lies e.g. with a section corresponding to half the width a correspondingly wide edge section on the outside of the end face 10b, so that it surrounds them in a ring.
  • the parts 10b and 12 are connected e.g. by High frequency welding.
  • connection of the end faces 10a, 10b with that formed from the longitudinal tracks 8a to 8d Tarpaulin is e.g. in that the latter first through at both ends Hot wedge welding along a weld seam 14 with the part of the material strip still free 12 is connected in a ring.
  • the tarpaulin or the entire inner shell is afterwards only along a longitudinal seam extending between the two end faces 10a, 10b open, which finally e.g. also in overlapped form by hot wedge welding is closed.
  • a special section 15 with a dome neck 16 desired then this can be worked into the tarpaulin like one of the sections 8a to 8d become.
  • FIGS. 4 and 5 The production method described results in two types of Weld seams, which are schematically shown enlarged in FIGS. 4 and 5, with FIG. 4 the weld seam 9 between the two longitudinal tracks 8c, 8d and FIG. 5 the weld connection between the end face 10b and the remaining tarpaulin.
  • the longitudinal sections 8c and 8d each have one with the conductive layer 6b provided inside 17 and 18 and a non-conductive outside 19 and 20 respectively. So that there is evenly good conductivity in the area of the weld 9 and no interruption caused by the overlap of the two longitudinal sections 8c, 8d occurs between the layers 6b, these are according to the invention at least one additionally formed, electrically conductive bridge 21 with one another connected. Preferably, there are several such in the longitudinal direction of the weld 9 Bridges 21 attached, for example at intervals of 50 cm to 100 cm.
  • the bridges 21 are produced, for example, in that the inner surfaces 17, 18 of the two Longitudinal tracks 8c, 8d by dot or strip application of a conductive soot or Polyaniline lacquer can be conductively connected to one another. It is particularly advantageous attach the bridges along all existing longitudinal and / or round seams and train continuously or continuously over their entire length.
  • Soot or polyaniline varnish preferably from a liquid or pasty, curable Dispersion of carbon black or polyaniline in an organic binder or solvent, e.g. a synthetic resin, so that the bridge material a closed, in all free corners and scoring the seams 9 forms penetrating layer 21a.
  • an organic binder or solvent e.g. a synthetic resin
  • bridges 21 formed in the lacquer can have a diameter or a width of e.g. Have 40 mm to 60 mm and are dried after application or with UV light or the like. Hardened. After drying out, the bridges 21 form a solid one Part of the lining, which ensures that even when attaching transverse and longitudinal welds no zones on the inside of the inner shell 6 can occur that are not conductively connected to a neighboring zone. Therefore the inside of the inner shell 6 at any point with one through the dome section 16 to the outside of the cathedral or to ground (earth), then it is automatic the entire inside of the inner shell 6 is grounded.
  • FIG. 5 In the area of the end faces 10a, 10b (FIG. 5), two likewise border on their inner sides 23, 24 sections 25, 26 of the inner shell 6 provided with conductive layers 6b, in FIG. 5 the one section 25 is part of the end face 10b according to FIGS. 3 and section 26 is part of the tarpaulin discussed above.
  • Fig. 4 limit these sections 25, 26 but along a butt joint 27 to each other, the outer sides 28, 29 of the sections 25, 26 through each of them along a weld 30, 31 attached material strips 12 are interconnected, the In the area of the connection points is bent by approx. 90 °.
  • Bridges 32 attached that conductively connect the two inner surfaces 23, 24 together. These bridges 32 are also useful by brushing the seams with a Soot or polyaniline varnish formed.
  • the electrically conductive Coating in those edge sections where weld seams come to lie either omit it completely or remove it before the welding process.
  • Fig. 4 shows, there is one when welding the longitudinal sections 8c, 8d strip-shaped zone 33, in which the uncoated outer side 19 of the section 8c rests on the coated inside 18.
  • a soot or polyaniline layer or the like. provided, they seem Not holding weld seams sufficiently well or not remaining permanently sealed, especially when the gasoline or the like. Small amounts of alcohol or the like. added become.
  • the basic material e.g. a thermoplastic polyurethane
  • weld seams are also resistant to gasoline for a sufficiently long time and stay tight.
  • the different sections 8a to 8d, 10a, 10b in the factory produce that the edge sections coming to overlap in FIGS. 3 and 4 are free of electrically conductive coatings, since the film material coated on one side Delivered in long lengths in roll form and according to the respective tank shape is cut.
  • it is therefore proposed to cut after and before welding one e.g. 2 cm wide edge section of the longitudinal sections 8a to 8d on the inside of the electrically conductive layer, as in Fig. 4 is indicated in the area of zone 33.
  • layers of soot e.g. chemically by treatment with acetone or mechanically Wiping off with a brush, a grindstone or the like. possible.
  • the Coating e.g. is removed by scraping or scratching.
  • welds are then preferably on their inside with a continuously surrounding bridge 35 made of an electrically conductive material, e.g. is sprayed on.
  • the bridges 21, 32 and 35 are expediently applied during production the inner shell.
  • the bridges 21 (Fig. 4) after completion of the tarpaulin are attached while the bridges 32, 35 (Fig. 5, 6) expediently continuously be attached during the connection of the sections 25, 26 as long as the last one Longitudinal seam in the area of the tarpaulin is still open. Will this longitudinal seam through later Hot wedge welding or the like closed, can also point or from the inside strip-shaped bridges are made of the bridge material.
  • the invention is not restricted to the exemplary embodiments described, which are based on can be modified in many ways.
  • aqueous dispersions e.g. those with soot, the advantage that they can also be easily applied with a spray gun or the like can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP98120183A 1997-10-30 1998-10-29 Garniture intérieure pour réservoirs pour liquides en particulier essence et procédé pour la fabriquer Expired - Lifetime EP0913341B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29719210U 1997-10-30
DE29719210U DE29719210U1 (de) 1997-10-30 1997-10-30 Innenauskleidung für Flüssigkeitstanks, insbesondere Benzintanks, und damit hergestellter Tank

Publications (3)

Publication Number Publication Date
EP0913341A2 true EP0913341A2 (fr) 1999-05-06
EP0913341A3 EP0913341A3 (fr) 1999-10-27
EP0913341B1 EP0913341B1 (fr) 2003-03-12

Family

ID=8047901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98120183A Expired - Lifetime EP0913341B1 (fr) 1997-10-30 1998-10-29 Garniture intérieure pour réservoirs pour liquides en particulier essence et procédé pour la fabriquer

Country Status (6)

Country Link
EP (1) EP0913341B1 (fr)
AT (1) ATE234243T1 (fr)
DE (2) DE29719210U1 (fr)
DK (1) DK0913341T3 (fr)
ES (1) ES2195254T3 (fr)
PT (1) PT913341E (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017021581A1 (fr) * 2015-08-05 2017-02-09 Zamora Fernando Martín Conditionnement pour des fluides
JP2019151111A (ja) * 2016-12-01 2019-09-12 サンフロロシステム株式会社 半導体製品の製造用の薬液を流動させる際に薬液と接触する複合成形品

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT12428U1 (de) 2010-10-14 2012-05-15 Ono Oil Gmbh Verfahren zum sanieren eines tanks
DE102011002487A1 (de) * 2011-01-07 2012-07-12 Huesker Synthetic Gmbh Auskleidung für Silobehälter eines Silofahrzeugs und Verfahren zum Einbringen und Positionieren einer Auskleidung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7617733U1 (fr) 1900-01-01 Wuelfing Und Hauck Kg, 3504 Kaufungen
DE6937614U (de) 1969-09-24 1970-01-08 Wuelfing Und Hauck Spannring zum befestigen von kunststoff-innenhuellen an brennstofftanks
DE19621469A1 (de) 1995-08-14 1997-02-20 Wuelfing Und Hauck Gmbh & Co K Innenauskleidung für Flüssigkeits-, insbesondere Benzintanks und damit hergestellter Tank

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003402A1 (fr) * 1978-01-23 1979-08-08 The British Petroleum Company p.l.c. Laminés renforcés, antistatiques et reliés à la terre, utilisables en tant que barrière contre des fluides inflammables par décharge électrostatique
US4613922A (en) * 1984-01-11 1986-09-23 Neo Vac Aktiengesellschaft Double-grounded wall tank, and method of its manufacture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7617733U1 (fr) 1900-01-01 Wuelfing Und Hauck Kg, 3504 Kaufungen
DE6937614U (de) 1969-09-24 1970-01-08 Wuelfing Und Hauck Spannring zum befestigen von kunststoff-innenhuellen an brennstofftanks
DE19621469A1 (de) 1995-08-14 1997-02-20 Wuelfing Und Hauck Gmbh & Co K Innenauskleidung für Flüssigkeits-, insbesondere Benzintanks und damit hergestellter Tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017021581A1 (fr) * 2015-08-05 2017-02-09 Zamora Fernando Martín Conditionnement pour des fluides
JP2019151111A (ja) * 2016-12-01 2019-09-12 サンフロロシステム株式会社 半導体製品の製造用の薬液を流動させる際に薬液と接触する複合成形品

Also Published As

Publication number Publication date
ATE234243T1 (de) 2003-03-15
PT913341E (pt) 2003-08-29
ES2195254T3 (es) 2003-12-01
EP0913341B1 (fr) 2003-03-12
DK0913341T3 (da) 2003-07-07
DE29719210U1 (de) 1998-06-04
EP0913341A3 (fr) 1999-10-27
DE59807451D1 (de) 2003-04-17

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