EP0520978B1 - Réservoir, en particulier réservoir de forme sphérique - Google Patents

Réservoir, en particulier réservoir de forme sphérique Download PDF

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Publication number
EP0520978B1
EP0520978B1 EP92890154A EP92890154A EP0520978B1 EP 0520978 B1 EP0520978 B1 EP 0520978B1 EP 92890154 A EP92890154 A EP 92890154A EP 92890154 A EP92890154 A EP 92890154A EP 0520978 B1 EP0520978 B1 EP 0520978B1
Authority
EP
European Patent Office
Prior art keywords
wall
fabric
tank
resin
distance
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 - Lifetime
Application number
EP92890154A
Other languages
German (de)
English (en)
Other versions
EP0520978A1 (fr
Inventor
Florian Dipl.-Ing. Leitl
Harald Dr. Dipl.-Ing. Schobermayr
Gerhard Schullerer
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.)
Leitl Beton GmbH
Original Assignee
Leitl Beton GmbH
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 Leitl Beton GmbH filed Critical Leitl Beton GmbH
Publication of EP0520978A1 publication Critical patent/EP0520978A1/fr
Application granted granted Critical
Publication of EP0520978B1 publication Critical patent/EP0520978B1/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
    • B65D90/48—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

Definitions

  • the invention relates to a tank, in particular a spherical tank for storing oil, fuel or chemicals, with an inner wall and an outer wall surrounding it at a distance with the formation of a leak monitoring space, the inner wall and the outer wall being formed from glass-fiber reinforced plastic and the leak Monitoring space is formed by a resin-impregnated, hardened spacer fabric made of reinforcing fibers, one fabric layer of which is firmly connected to the inner wall and the other fabric layer of which is firmly connected to the outer wall, and the webs connecting its two fabric layers, forming a cavity that forms the leak monitoring space, generally at right angles are directed to the inner and outer wall, and a method for its production.
  • a tank which has an inner wall and an outer wall surrounding the same, which is formed by a fabric glued to the inner wall.
  • This fabric is impregnated with resin from the outside, the density of the fabric being chosen so that the resin does not penetrate it completely, but only over part of its thickness, so that an untreated and therefore untreated part of the outer wall and the inner wall flexible tissue is present, which absorb leakage can and their display enables.
  • This known tank thus has a relatively stable outer shell, which, however, is connected to the inner wall via a relatively compliant fabric (namely its unimpregnated layer).
  • This relatively compliant intermediate layer prevents an effective introduction of force from the outer to the inner wall or vice versa, so that the outer wall can contribute only relatively little to the stiffening of the tank.
  • the untreated tissue can make almost no contribution to the force absorption.
  • DE-A-26 58 111 describes a double-walled tank made of glass fiber reinforced plastic, a spacer layer being arranged between the two walls of the tank, which is made of granular material, e.g. Gravel, or consists of preformed spacers, which can optionally be connected to each other by an embedded wire or a laminated glass mat.
  • granular material e.g. Gravel
  • a tank in which the leak monitoring space is formed from a material which is capable of transmitting forces between the inner and outer wall and which is designed so that liquid in this material can flow.
  • felt or a honeycomb structure or plastic ribs or an extruded mesh or fabric with continuous passages is proposed for this.
  • the use of a felt if the felt is to be permeable to liquid, does not bring about sufficient power transmission from the inner to the outer shell or vice versa.
  • the arrangement of honeycomb structures or plastic ribs on the outer surface of a spherical surface is complex and technically complicated, especially if one and the same structure forming the leak monitoring space is to be usable for tanks of different sizes.
  • a non-prepublished older EP-A-504 708 discloses a hollow plastic body, in particular a tank, in which, in one embodiment, a double-pole fabric is provided between an inner wall and an outer wall.
  • the double pile fabric consists of an upper fabric, a lower fabric and pile threads extending transversely between them.
  • the wall in the form of a winding should consist of one or more strips of an uncut double pole fabric.
  • a spacer fabric consists of two fabric layers, which are connected to one another by webs, which are formed by threads of the fabric. These web threads keep the two layers of fabric at a distance.
  • the invention aims to avoid the disadvantages and difficulties of the known tanks and has as its object to create a tank of the type described in the introduction, in which a concrete layer to be provided for static reasons is not necessary. Furthermore, material savings should be achieved by reducing the wall thicknesses of the inner and outer walls, and simple and inexpensive manufacture of the tank should be possible.
  • the spacer fabric can be used to produce a sandwich laminate with very good physical properties in a simple manner by soaking the spacer fabric with resin, for example polyester resin, with either the resin application being metered precisely or resin being applied in excess and the excess Resin is then squeezed out.
  • resin for example polyester resin
  • the spacer fabric is reshaped by the resin impregnation into a stable three-dimensional structure, the two fabric layers becoming rigid plates and the threads or fibers connecting the fabric layers being rigid and being approximately perpendicular to the plates Form extending webs that fix the fabric layers against each other. It is particularly advantageous that the spacer fabric can be deformed up to a certain minimum bending radius without folds, not only over a cylinder surface, but also over a spherical surface.
  • the part of the tank that is used to achieve the leak monitoring space is also used to absorb the force, i.e. designed as a load-bearing component.
  • the sandwich construction formed in this way results in a substantial increase in the stability of the tank, so that there is no need for a supporting concrete outer shell. It is also possible to greatly reduce the wall thicknesses of the inner and outer shell without having to accept losses in stability or strength.
  • a particularly inexpensive embodiment is characterized in that the outer wall is sprayed onto the spacer fabric.
  • the webs connecting the two fabric layers of the spacer fabric have a height of 3 to 10 mm, in particular a height of about 5 mm.
  • a method for producing a tank according to the invention is characterized in that the inner wall is made of glass fiber reinforced plastic and liquid resin is applied to the outside of the inner wall before the outer surface of the inner wall has completely hardened, into which a spacer fabric adapted to the shape of the inner wall is applied embedded in the inner wall facing fabric layer, whereupon liquid resin is applied to the outside of the spacer fabric, and that after hardening of the resin-impregnated spacer fabric, but just before it has completely hardened, the outer wall is applied, for example sprayed on.
  • a particular advantage of the invention can be seen in the simple and inexpensive production, since one and the same spacer fabric can be used for tanks with different diameters, with no adaptation work being required apart from a cut of the spacer fabric corresponding to the tank diameter.
  • the tank has an inner wall 1, which is made of glass fiber reinforced plastic.
  • This inner wall 1 is surrounded at a distance 2 by an outer wall 3, which is also made of glass fiber reinforced plastic.
  • the space 4 lying between the inner and outer walls 1 and 3 represents a leak monitoring space which is formed by a resin-impregnated spacer fabric 5.
  • the two fabric layers 6, 7 of the spacer fabric 5 are each firmly and inseparably connected to the inner or outer wall 1 or 3 adjacent to them. This is achieved in that each fabric layer 6, 7 is embedded in a resin layer applied to the respective wall 1 or 3.
  • the fibers or threads connecting the two fabric layers 6, 7 to one another are stiff due to the resin impregnation of the spacer fabric 5 and are oriented approximately perpendicular to the fabric layers 6, 7.
  • the fabric layers 6, 7 are fixed against each other and the inner wall 1 with the Outer wall 3 rigidly connected, although a gas and liquid permeable space 4 is present between the inner and outer walls 1 and 3.
  • the wall thicknesses of the inner and outer walls can be greatly reduced without loss of strength compared to tanks according to the prior art, which in addition to saving concrete results in material and cost savings.
  • the procedure for manufacturing the tank is as follows: First, the inner wall 1 is made from glass fiber reinforced plastic in a conventional manner. Even before the outer surface of the inner wall 1 has completely solidified, a layer of liquid resin, preferably unsaturated polyester, is applied to this and a spacer fabric 5 adapted to the geometric shape of the inner wall 1 is placed and pressed into this layer, so that the inner wall 1 faces Fabric layer 6 of the spacer fabric 5 is embedded in the resin layer.
  • a layer of liquid resin preferably unsaturated polyester
  • liquid chaff is applied to the outer fabric layer 7 of the spacer fabric 5.
  • the liquid resin also impregnates the webs 8 connecting the fabric layers 6 and 7 by capillary action, as a result of which they align approximately at right angles to the fabric layers 6, 7 and form a cavity 4 between the fabric layers 6, 7.
  • the outer wall 3 is applied, for example sprayed on if glass fiber-reinforced plastic is used.
  • the spacer fabric is preferably formed from glass fibers; however, other materials can also be considered, e.g. Aramid fibers, carbon fibers or natural fibers.
  • a reinforced concrete outer jacket is only to be provided in the tank according to the invention if the tank is subjected to additional loads, e.g. driving over motor vehicles etc. As protection against installation, the outside of the tank can be covered with cheap concrete.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Laminated Bodies (AREA)
  • Moulding By Coating Moulds (AREA)
  • Joints Allowing Movement (AREA)

Claims (4)

  1. Réservoir, en particulier réservoir de forme sphérique pour le stockage d'huile, de carburant ou de produits chimiques, comportant une paroi intérieure (1) et une paroi extérieure (3) qui entoure celle-ci à distance (2) en formant un espace de surveillance (4) pour les fuites, dans lequel la paroi intérieure (1) et la paroi extérieure (3) sont formées en matière plastique renforcée de fibres de verte et dans lequel l'espace de surveillance (4) pour les fuites est formé par un textile d'écartement (5) en fibres de renfort, durci et imbibé de résine, dont l'une des couches textiles (6) est solidairement reliée à la paroi intérieure (1) et dont l'autre couche textile (7) est solidairement reliée à la paroi extérieure (3), et dont les nervures (8) qui relient ces deux couches textiles (6, 7) sont dirigées généralement à angle droit par rapport à la paroi intérieure et à la paroi extérieure (1, 3), en formant une cavité (4) qui constitue la chambre de surveillance des fuites, caractérisé en ce que le textile d'écartement (5), qui forme un produit laminé sandwich, est réalisé sous la forme d'un composant porteur, et qui est noyé à cet effet par ses couches textiles (6, 7) dans la matière plastique renforcée par des fibres de verte de la paroi intérieure et de la paroi extérieure (1, 3).
  2. Réservoir selon la revendication 1, caractérisé en ce que la paroi extérieure (3) est projetée sur le textile d'écartement (5).
  3. Réservoir selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que les nervures (8) qui relient les deux couches textiles (6, 7) du textile d'écartement (5) ont une hauteur de 3 à 10 mm, en particulier une hauteur de 5 mm.
  4. Procédé pour réaliser un réservoir selon l'une des revendications 1 à 3, caractérisé en ce que la paroi intérieure (1) est réalisée en matière plastique renforcée de fibres de verte et en ce qu'on applique sur la face extérieure de la paroi intérieure (1) et avant durcissement complet de la surface extérieure de la paroi intérieure (1), une résine liquide dans laquelle un textile d'écartement (5), adapté à la forme de la paroi intérieure (1), est noyé par sa couche textile orientée vers la paroi intérieure (1), suite à quoi on applique de la résine liquide sur la face extérieure du textile d'écartement (5), et en ce qu'après durcissement du textile d'écartement (5) noyé dans la résine, mais brièvement avant son durcissement complet, on applique la paroi extérieure (3), par exemple par projection.
EP92890154A 1991-06-27 1992-06-24 Réservoir, en particulier réservoir de forme sphérique Expired - Lifetime EP0520978B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1286/91 1991-06-27
AT0128691A AT399323B (de) 1991-06-27 1991-06-27 Tank, insbesondere kugelförmiger tank

Publications (2)

Publication Number Publication Date
EP0520978A1 EP0520978A1 (fr) 1992-12-30
EP0520978B1 true EP0520978B1 (fr) 1995-05-24

Family

ID=3510604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92890154A Expired - Lifetime EP0520978B1 (fr) 1991-06-27 1992-06-24 Réservoir, en particulier réservoir de forme sphérique

Country Status (5)

Country Link
EP (1) EP0520978B1 (fr)
AT (2) AT399323B (fr)
CZ (1) CZ282671B6 (fr)
DE (1) DE59202304D1 (fr)
SK (1) SK279506B6 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007035228B4 (de) * 2007-05-15 2010-12-09 Rcs Reinforced Composite Solutions Gmbh Transportbehälter

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4205177A1 (de) * 1992-02-20 1993-08-26 Epowit Bautechnik Gmbh Verfahren zur erzeugung eines doppelwandigen behaelters
RU2111869C1 (ru) * 1993-01-21 1998-05-27 Юнайтед Текнолоджиз Корпорейшн Топливный бак
DE4439040A1 (de) 1994-11-02 1996-05-09 Bayer Ag Tank mit mehrschichtigem Wandaufbau und Verfahren zu dessen Herstellung
FR2733489B1 (fr) * 1995-04-25 2000-05-19 Galan Inchaurbe Jose Ma Javier Reservoir/citerne perfectionne
PT901972E (pt) * 1997-09-13 2000-04-28 Gerhard Christian Rambacher Tanque de armazenagem
DE19918207A1 (de) * 1999-04-22 2000-10-26 Gbt Ges Fuer Beschichtungstech Behälter für korrosive Flüssigkeiten
DE102011075998B3 (de) * 2011-05-17 2012-11-15 Simona Ag Behälter, Rohr oder chemischer Apparat mit Farbindikator und Verbundhalbzeug mit Farbindikator zur Herstellung eines Behälters, Rohrs oder chemischen Apparats
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
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
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
DE102016013207A1 (de) * 2016-11-08 2018-05-09 GBT-Bücolit GmbH Doppelwandiger Tankcontainer zur Langzeitlagerung von korrosiven Flüssigkeiten

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2658111A1 (de) * 1976-12-22 1978-07-06 Ermert Dunker Monika Dr Doppelwandiger tank aus glasfaserverstaerktem kunststoff und verfahren zu seiner herstellung
US4821915A (en) * 1987-03-09 1989-04-18 Corespan, Inc. Twin wall fiberglass tank and method of producing the same
US4993581A (en) * 1989-05-02 1991-02-19 Mitchell A Ross Dual wall tank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007035228B4 (de) * 2007-05-15 2010-12-09 Rcs Reinforced Composite Solutions Gmbh Transportbehälter

Also Published As

Publication number Publication date
EP0520978A1 (fr) 1992-12-30
CZ199292A3 (en) 1993-02-17
DE59202304D1 (de) 1995-06-29
SK279506B6 (sk) 1998-12-02
ATA128691A (de) 1994-09-15
CZ282671B6 (cs) 1997-08-13
AT399323B (de) 1995-04-25
SK199292A3 (en) 1994-12-07
ATE122989T1 (de) 1995-06-15

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