EP1579986B1 - Apparatus for applying pressure to insulating plates - Google Patents

Apparatus for applying pressure to insulating plates Download PDF

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Publication number
EP1579986B1
EP1579986B1 EP05300201A EP05300201A EP1579986B1 EP 1579986 B1 EP1579986 B1 EP 1579986B1 EP 05300201 A EP05300201 A EP 05300201A EP 05300201 A EP05300201 A EP 05300201A EP 1579986 B1 EP1579986 B1 EP 1579986B1
Authority
EP
European Patent Office
Prior art keywords
chamber
pressure
passage
insulation
primary
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.)
Not-in-force
Application number
EP05300201A
Other languages
German (de)
French (fr)
Other versions
EP1579986A1 (en
Inventor
Marcel Nias
Laurent Wymmelbeke
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.)
Chantiers de lAtlantique SA
Original Assignee
Aker Yards SA
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Filing date
Publication date
Application filed by Aker Yards SA filed Critical Aker Yards SA
Publication of EP1579986A1 publication Critical patent/EP1579986A1/en
Application granted granted Critical
Publication of EP1579986B1 publication Critical patent/EP1579986B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/003—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by an elastic bag or diaphragm expanded by fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D5/00—Tank wagons for carrying fluent materials
    • B61D5/08—Covers or access openings; Arrangements thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/68—Panellings; Linings, e.g. for insulating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/12—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for thermal insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0358—Thermal insulations by solid means in form of panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0631—Three or more walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • F17C2270/0107—Wall panels

Definitions

  • the present invention relates to a device for pressurizing a bonded strip for the production of an insulating and sealed wall consisting of two layers of insulation: a primary layer and a secondary layer.
  • walls consist of two successive sealing membranes, one primary in contact with the product contained in the tank and the other secondary disposed between the primary membrane and the carrier structure, these two membranes being alternated with two thermally insulating barriers .
  • known walls consist of a primary foam insulation associated with a stainless steel primary membrane and a secondary foam insulation associated with a flexible secondary membrane comprising at least one thin continuous metal sheet such as for example an aluminum sheet sandwiched between two glass fabrics.
  • Walls are also known whose two insulating layers are insulating caissons covered with INVAR or a 36% steel of nickel thermally stable between minus 200 ° C. and more than 400 ° C.
  • These insulating and waterproof walls are made from a set of prefabricated panels comprising successively, between two rigid plates, the primary insulation, the secondary membrane and the secondary insulation.
  • the primary membrane is then made on all the prefabricated panels covering the supporting structure.
  • Each prefabricated panel has the general shape of a rectangular parallelepiped, the primary insulation element and the secondary insulation element respectively having, seen in plan, the shape of a first rectangle and a second rectangle whose sides are substantially parallel, the lengths and / or width of the first rectangle being smaller than those of the second rectangle to provide a peripheral flange.
  • the peripheral flanges of adjacent panels and the sidewalls of the primary insulation elements define lanes, which may extend the entire length, width or height of the vessel.
  • These corridors are filled to ensure the continuity of the seal formed by the panels before laying the primary membrane.
  • the continuity of the primary insulating barrier is achieved by inserting pavers into the corridors.
  • the peripheral edges are covered before the establishment of the pavers of a flexible web strip, comprising at least one continuous thin metal sheet.
  • a conventional technique for producing sealing at the peripheral rims consists in depositing an epoxy or polyurethane-type adhesive on the peripheral rims, a flexible strip is unwound on the edges coated with glue and the strip is pressed by means of a manual press. During the polymerization phase of the adhesive, the flexible web is maintained at a pressure of about 0.1 or 0.2 bar depending on the type of resin.
  • a known pressurizing system consists of an air cushion device sandwiched between the bonded flexible sheet web and a board which is attached to the upper rigid plate of the side panels of said aisle.
  • the fixed position of the board is realized via force recovery bars fixed on the rigid plate via inserts already present for the subsequent fixation of the primary membrane.
  • the panels do not systematically have an insert and therefore the use of this pressurizing device requires to drill and screw the stress recovery bars one by one and thus creating additional long and tedious operations.
  • this device is in practice complex for a pressurization over a long length and long implementation.
  • a device for performing the sealing of the secondary membrane where a continuous gluing apparatus comprising an adhesive strip covered with an epoxy or polyurethane type glue, a heating system for reactivating the glue, a glue system, Pressurization of the adhesive tape on the insulation and a cooling system for the glue taking.
  • the pressurizing system consists of retractable rollers cooperating with a groove disposed in the upper part of each panel and pads pressurized by a jack.
  • this device is to achieve a continuous seal by moving said device.
  • this continuous bonding technique has the disadvantage of requiring a cooling system for the polymerization of the glue to prevent the immobilization of the apparatus throughout the duration of the drying of the glue which varies with the temperature ambient and which can last from 4 to 12 hours.
  • the pressure is applied only on a limited part of the band.
  • the object of the present invention is to provide a device that is both simple and effective to overcome the aforementioned drawbacks and which allows in particular an easier, faster and longer implementation in order to achieve faster continuity of the sealing of the secondary barrier to obtain an insulating and waterproof wall.
  • the device according to the invention is a device for pressurizing a strip of flexible sheet bonded to the edges of two lateral structures, it is characterized in that the device comprises at least one sealed chamber comprising compressible walls and means evacuation of said chamber. Thanks to the compressible walls, during the evacuation of the sealed chamber, the height thereof is reduced steadily over its entire length and allows insertion without exerting direct pressure on the bonded strip. This configuration facilitates the positioning of the device since the chamber is under vacuum its height is lower than the atmospheric pressure, which allows to have play at height and allows to use the device regardless of different thicknesses of insulation web .
  • the device is placed in a corridor and comprises retractable retaining means disposed on either side of the longitudinal axis of the corridor and cooperating with longitudinal grooves disposed on the side structures.
  • retractable retaining means disposed on either side of the longitudinal axis of the corridor and cooperating with longitudinal grooves disposed on the side structures.
  • the longitudinal grooves make it possible to receive retractable retaining elements such as lugs or pads or any other element complementary to said grooves, it is therefore not necessary to perforate the structures for holding the device.
  • the device comprises a reference stop for the vertical positioning of said device in the corridor.
  • This vertical positioning stop allows by a simple application of the pressurizing device in the corridor to directly put the holding means against the longitudinal grooves of the lateral structures which are thus exactly positioned for good cooperation.
  • the retractable elements are two parallel longitudinal bars.
  • the use of two bars Parallels gives a larger holding area for the device which is thus better held.
  • the retractable elements are actuated by a system of rods.
  • the links are rotatable about a central axis disposed in their middle while their ends are connected to retaining bars or clamping blades. The rotation of the rods in a direction of rotation causes the spacing of the blades to block the device and in the other direction their removal.
  • the retractable elements are actuated by a system of hooves.
  • the retaining bars or blades are placed on a support plate on which they can slide, their inner ends are beveled and two longitudinally sliding shoes each push out each of the blades to bring them into the groove the panel and perform the holding of the device in the hallway.
  • the evacuation of the sealed chamber is performed by a venturi.
  • the Venturi is simple and fast to make and use.
  • the side walls of the sealed chamber are natural closed-cell foam.
  • the height reduction of the sealed chamber during the evacuation is given by the density ratio of the foam and the internal pressure; when the air pressure is set, the chamber resumes its initial height in a non-abrupt manner and thus allows the application of a progressive and constant pressure on the glued strip.
  • the method according to the invention implements a device positioned in the corridor where the pressure is exerted, the sealed chamber being evacuated with air and the pressurization is carried out by venting said chamber.
  • the method uses at least two devices placed end to end in the corridor where it is desired to exert the pressure. It is thus possible to ensure a constant pressure on the pie the length of the corridor between the two panels to be sealed, and this regardless of the necessary pressurization time.
  • a particular application of the invention is the pressurization of a bonded strip for the production of an insulating and leaktight wall of a vessel integrated in a carrier structure, in particular of a liquefied gas transport vessel, the vessel comprising two successive sealing membranes, one primary in contact with the product contained in the tank and the other secondary disposed between the primary membrane and the carrier structure, these two sealing membranes being alternated with two thermally insulating barriers, said wall insulating and waterproof being made from a set of prefabricated panels successively comprising, between two rigid plates, the primary insulation, the secondary membrane and the secondary insulation, each prefabricated panel has the general shape of a rectangular parallelepiped, primary insulation element and the secondary insulation element respectively having, in plan view, the shape of a first rectangle angle and a second rectangle whose sides are substantially parallel, the lengths and / or the width of the first rectangle being smaller than those of the second rectangle to provide a peripheral flange, said method comprising pressurizing a glued strip flexible ply comprising at least one thin continuous metal sheet on
  • the device is particularly suitable for producing the seal of the secondary membrane between two prefabricated panels because it is necessary to maintain under pressure the strip of flexible sheet for a certain period, corresponding to the duration of polymerization of the adhesive, for example and at a certain pressure, from 0.1 to 0.2 bar approximately, distributed over the entire bonded surface.
  • the prefabricated panel 1 (cf. figure 1 ) consists of a primary insulation 10 and a secondary insulation 11. Between the primary insulation 10 and the secondary insulation 11 is inserted a flexible or rigid secondary membrane 111 and having at least one thin continuous metal sheet .
  • the primary insulation is covered with a plywood 102 which provides the superior rigidity of the panel 1.
  • the secondary insulation 11 is bonded to a plywood 110 which provides the lower rigidity of the panel 1.
  • a groove 103 is provided under the counter
  • the primary insulation 10 is shorter and narrower than the secondary insulation 11 to create a space around the periphery. of panel 1 and creates a corridor 12 when two panels are arranged side by side.
  • the figure 2 shows two prefabricated panels 1 between which is placed an insulating seal 2 over the entire height of the secondary insulation 11.
  • the primary insulation 10 being smaller than the secondary insulation 11, a corridor 12 separates the two primary insulators of the two panels 1.
  • a strip of flexible ply 3 comprising at least one thin metallic sheet (here a) continuous is bonded astride the two secondary insulators 11 and the insulating seal 2.
  • the figures 3 and 4 illustrate the positioning of the device 4 in the corridor 12.
  • the device 4 comprises a support plate 45, clamping blades 40 disposed on each side of the device 4, at least one pressing pad 41 (here two), at least one sealed chamber 42 (here two), referencing abutments 43, at least one air suction duct 44 connecting each sealed chamber 42 to the venturi or to a known vacuum system (not shown).
  • the side walls 420 of each chamber 42 is constituted by a block of foam such as a closed-cell natural foam, the lower part of each chamber 42 is a longitudinal contact bar 421, the upper part 422 is a perforated wall of at least one hole 423 for the passage of the conduits 44.
  • a contact foam 424 is placed under each chamber 42 under the contact bar 421, the contact bar assembly 421 and contact foam 424 then constituting the pressing pad 41.
  • the chambers 42 are evacuated by a venturi (not shown) via the conduits 44 and holes 423. By evacuation of the chambers, the foam walls of said chambers are compress, thus for example during the evacuation a block of foam of 20cm high passes to 12-13 cm.
  • the device 4 is inserted in the corridor 12, the reference stop 43 stops the device in height, the clamping blades 40 are spaced apart, they thus enter the grooves 103 to block the device 4.
  • the chambers 42 are then brought to atmospheric pressure, which causes the descent of the entire pressing pad 41 by the resumption of the initial shape of the foam blocks 420. descent, the pad 41 and the foam 424 apply a constant pressure on the flexible sheet of tape 3 bonded previously to ensure the setting of the adhesive.
  • the blades 40 are actuated by rods 400.
  • Each rod 400 is rotatable in its middle 401 relative to the support plate 45 and at each of its ends 402 with each blade 40. In retracted position, the rods 400 have a certain angle relative to the longitudinal edges 450 of the support 45 and the blades 40 do not protrude from the support 45.
  • the rotation of the rods 400 here in the counterclockwise direction, moves the blades 400 towards the outside of the support 45, the The blades 40 then protrude edges 450 and ensure the correct positioning of the device 4 by inserting the blades 40 into the grooves 104.
  • This mode is particularly well suited for a constant corridor width.
  • the blades 40 are pushed by shoes 403 sliding in the support plate 45. Each shoe slides in a not shown groove. By bringing the two shoes 403 closer to one another, the blades 40 are moved outwardly from the support 45 so as to insert them into the grooves 103.
  • This arrangement has the advantage of a pressurizing device. which can be used for corridors of variable width.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Press Drives And Press Lines (AREA)

Description

La présente invention concerne un dispositif de mise sous pression d'une bande collée pour la réalisation d'une paroi isolante et étanche constituée de deux couches d'isolant: une couche primaire et une couche secondaire.The present invention relates to a device for pressurizing a bonded strip for the production of an insulating and sealed wall consisting of two layers of insulation: a primary layer and a secondary layer.

Ces parois sont utilisées en particulier sur les navires de transport de gaz liquéfié. Les cuves de ces navires doivent répondre à des contraintes thermiques et techniques très sévères. Elles doivent en particulier être totalement étanches et garantir une basse température pour limiter l'évaporation.These walls are used in particular on liquefied gas transport vessels. The vessels of these ships must meet very severe thermal and technical constraints. In particular, they must be completely tight and guarantee a low temperature to limit evaporation.

Ces parois sont constituées de deux membranes d'étanchéité successives, l'une primaire en contact avec le produit contenu dans la cuve et l'autre secondaire disposée entre la membrane primaire et la structure porteuse, ces deux membranes étant alternées avec deux barrières thermiquement isolantes. On connaît ainsi des parois constituées d'une isolation primaire en mousse associé avec une membrane primaire en inox et d'une isolation secondaire en mousse associée à une membrane secondaire souple comportant au moins une fine feuille métallique continue telle que par exemple une feuille en aluminium collée en sandwich entre deux tissus de verre. On connaît également des parois dont les deux couches isolantes sont des caissons isolants recouverts d'INVAR soit un acier à 36% de nickel stable thermiquement entre moins 200°C et plus 400°C. Il existe également des parois avec un isolant primaire en mousse associé à une membrane en INVAR et un isolant secondaire en mousse associé à une membrane secondaire souple.These walls consist of two successive sealing membranes, one primary in contact with the product contained in the tank and the other secondary disposed between the primary membrane and the carrier structure, these two membranes being alternated with two thermally insulating barriers . Thus known walls consist of a primary foam insulation associated with a stainless steel primary membrane and a secondary foam insulation associated with a flexible secondary membrane comprising at least one thin continuous metal sheet such as for example an aluminum sheet sandwiched between two glass fabrics. Walls are also known whose two insulating layers are insulating caissons covered with INVAR or a 36% steel of nickel thermally stable between minus 200 ° C. and more than 400 ° C. There are also walls with a primary foam insulation associated with an INVAR membrane and a secondary foam insulation associated with a flexible secondary membrane.

Ces parois isolantes et étanches sont réalisées à partir d'un ensemble de panneaux préfabriqués comportant successivement, entre deux plaques rigides, l'isolant primaire, la membrane secondaire et l'isolant secondaire. La membrane primaire est réalisée alors sur l'ensemble des panneaux préfabriqués recouvrant la structure porteuse.These insulating and waterproof walls are made from a set of prefabricated panels comprising successively, between two rigid plates, the primary insulation, the secondary membrane and the secondary insulation. The primary membrane is then made on all the prefabricated panels covering the supporting structure.

Chaque panneau préfabriqué a la forme générale d'un parallélépipède rectangle, l'élément d'isolation primaire et l'élément d'isolation secondaire ayant respectivement, vus en plan, la forme d'un premier rectangle et d'un deuxième rectangle dont les côtés sont sensiblement parallèles, les longueurs et/ou la largeur du premier rectangle étant inférieures à celles du second rectangle afin de ménager un rebord périphérique. Les rebords périphériques de panneaux adjacents et les parois latérales des éléments d'isolation primaire définissent des couloirs, pouvant s'étendre sur toute la longueur, largeur ou hauteur de la cuve. Ces couloirs sont comblés pour assurer la continuité de l'étanchéité formée par les panneaux avant la pose de la membrane primaire. La continuité de la barrière isolante primaire est réalisée en insérant des pavés dans les couloirs. Pour assurer la continuité de l'étanchéité de la membrane secondaire au niveau de la jonction de deux panneaux, les rebords périphériques sont recouverts avant la mise en place des pavés d'une bande de nappe souple, comportant au moins une fine feuille métallique continue.Each prefabricated panel has the general shape of a rectangular parallelepiped, the primary insulation element and the secondary insulation element respectively having, seen in plan, the shape of a first rectangle and a second rectangle whose sides are substantially parallel, the lengths and / or width of the first rectangle being smaller than those of the second rectangle to provide a peripheral flange. The peripheral flanges of adjacent panels and the sidewalls of the primary insulation elements define lanes, which may extend the entire length, width or height of the vessel. These corridors are filled to ensure the continuity of the seal formed by the panels before laying the primary membrane. The continuity of the primary insulating barrier is achieved by inserting pavers into the corridors. To ensure the continuity of the secondary diaphragm seal at the junction of two panels, the peripheral edges are covered before the establishment of the pavers of a flexible web strip, comprising at least one continuous thin metal sheet.

Le montage de ces panneaux nécessite des modes opératoires très stricts et d'une grande précision de montage. Le collage de la bande et l'étanchéité entre deux panneaux doit être particulièrement précis.The assembly of these panels requires very strict operating procedures and a high accuracy of assembly. Bonding the tape and sealing between two panels must be particularly accurate.

Une technique classique pour la réalisation de l'étanchéité au niveau des rebords périphérique consiste à déposer une colle de type époxy ou polyuréthanne sur les rebords périphériques, une bande souple est déroulée sur les rebords enduits de colle et la bande est pressée au moyen d'une presse manuelle. Pendant la phase de polymérisation de la colle, la bande de nappe souple est maintenue en pression à environ 0,1 ou 0,2 bars selon le type de résine.A conventional technique for producing sealing at the peripheral rims consists in depositing an epoxy or polyurethane-type adhesive on the peripheral rims, a flexible strip is unwound on the edges coated with glue and the strip is pressed by means of a manual press. During the polymerization phase of the adhesive, the flexible web is maintained at a pressure of about 0.1 or 0.2 bar depending on the type of resin.

Un système de mise en pression connu consiste en un dispositif à coussin d'air pris en sandwich entre la bande de nappe souple collée et une planche qui est fixée sur la plaque rigide supérieure des panneaux latéraux dudit couloir. Le maintien en position fixe de la planche est réalisé via des barres de reprise d'efforts fixées sur la plaque rigide via des inserts déjà présents pour la fixation ultérieure de la membrane primaire. Les panneaux ne présentent pas systématiquement d'insert et de ce fait l'utilisation de ce dispositif de mise en pression oblige à percer et visser les barres de reprise d'efforts une à une et créant ainsi des opérations supplémentaires longues et fastidieuses. Par ailleurs, ce dispositif s'avère en pratique complexe pour une mise en pression sur une grande longueur et de mise en oeuvre longue.A known pressurizing system consists of an air cushion device sandwiched between the bonded flexible sheet web and a board which is attached to the upper rigid plate of the side panels of said aisle. The fixed position of the board is realized via force recovery bars fixed on the rigid plate via inserts already present for the subsequent fixation of the primary membrane. The panels do not systematically have an insert and therefore the use of this pressurizing device requires to drill and screw the stress recovery bars one by one and thus creating additional long and tedious operations. Moreover, this device is in practice complex for a pressurization over a long length and long implementation.

Dans le brevet français FR 2 822 815 , un dispositif est décrit pour la réalisation de l'étanchéité de la membrane secondaire où un appareil de collage en continu comprenant une bande adhésive recouverte d'une colle de type époxy ou polyuréthane, un système de chauffage pour réactiver la colle, un système de mise en pression de la bande adhésive sur l'isolant et un système de refroidissement pour la prise de la colle. Le système de mise en pression se compose de galets escamotables coopérant avec une rainure disposée dans la partie supérieure de chaque panneau et des patins mis sous pression par un vérin.In the French patent FR 2 822 815 , a device is described for performing the sealing of the secondary membrane where a continuous gluing apparatus comprising an adhesive strip covered with an epoxy or polyurethane type glue, a heating system for reactivating the glue, a glue system, Pressurization of the adhesive tape on the insulation and a cooling system for the glue taking. The pressurizing system consists of retractable rollers cooperating with a groove disposed in the upper part of each panel and pads pressurized by a jack.

Le but de ce dispositif est de réaliser une étanchéité en continue par déplacement dudit dispositif. Cependant cette technique de collage en continu présente l'inconvénient de nécessiter un système de refroidissement pour la polymérisation de la colle afin d'éviter l'immobilisation de l'appareil pendant toute la durée du séchage de la colle qui varie en fonction de la température ambiante et qui peut durer de 4 à 12 heures. D'autre part la pression n'est appliquée que sur une partie limitée de la bande.The purpose of this device is to achieve a continuous seal by moving said device. However, this continuous bonding technique has the disadvantage of requiring a cooling system for the polymerization of the glue to prevent the immobilization of the apparatus throughout the duration of the drying of the glue which varies with the temperature ambient and which can last from 4 to 12 hours. On the other hand the pressure is applied only on a limited part of the band.

L'objet de la présente invention est de proposer un dispositif à la fois simple et efficace palliant les inconvénients précités et qui permet notamment une mise en place plus aisée, plus rapide et sur une grande longueur afin de réaliser plus rapidement la continuité de l'étanchéité de la barrière secondaire pour obtenir une paroi isolante et étanche.The object of the present invention is to provide a device that is both simple and effective to overcome the aforementioned drawbacks and which allows in particular an easier, faster and longer implementation in order to achieve faster continuity of the sealing of the secondary barrier to obtain an insulating and waterproof wall.

Le dispositif selon l'invention est un dispositif de mise en pression d'une bande de nappe souple collée sur les bords de deux structures latérales, il est caractérisé en ce que le dispositif comprend au moins une chambre étanche comportant des parois compressibles et des moyens de mise sous vide de ladite chambre. Grâce aux parois compressibles, lors de la mise sous vide de la chambre étanche, la hauteur de celle-ci se réduit de manière constante sur toute sa longueur et permet une insertion sans exercer de pression directe sur la bande collée. Cette configuration facilite le positionnement du dispositif puisque la chambre étant sous vide sa hauteur est plus faible qu'à la pression atmosphérique, ce qui permet d'avoir du jeu en hauteur et qui permet d'utiliser le dispositif indifféremment pour différentes épaisseurs de nappe isolante.The device according to the invention is a device for pressurizing a strip of flexible sheet bonded to the edges of two lateral structures, it is characterized in that the device comprises at least one sealed chamber comprising compressible walls and means evacuation of said chamber. Thanks to the compressible walls, during the evacuation of the sealed chamber, the height thereof is reduced steadily over its entire length and allows insertion without exerting direct pressure on the bonded strip. This configuration facilitates the positioning of the device since the chamber is under vacuum its height is lower than the atmospheric pressure, which allows to have play at height and allows to use the device regardless of different thicknesses of insulation web .

Selon une disposition particulière, le dispositif est placé dans un couloir et il comprend des moyens de retenue escamotables disposés de part et d'autre de l'axe longitudinal du couloir et coopérant avec des rainures longitudinales disposées sur les structures latérales. Afin de maintenir la pression le dispositif doit être maintenu fermement en place dans le couloir. Les rainures longitudinales permettent de recevoir des éléments de retenus escamotables tels que des ergots ou des patins ou tout autre élément complémentaire aux dites rainures, il n'est donc pas nécessaires de perforer les structures pour le maintien du dispositif.According to a particular arrangement, the device is placed in a corridor and comprises retractable retaining means disposed on either side of the longitudinal axis of the corridor and cooperating with longitudinal grooves disposed on the side structures. In order to maintain the pressure the device must be held firmly in place in the corridor. The longitudinal grooves make it possible to receive retractable retaining elements such as lugs or pads or any other element complementary to said grooves, it is therefore not necessary to perforate the structures for holding the device.

Selon une caractéristique particulière, le dispositif comprend une butée de référence pour le positionnement vertical dudit dispositif dans le couloir. Cette butée de positionnement vertical permet par une simple application du dispositif de mise en pression dans le couloir de mettre directement les moyens de retenus vis à vis des rainures longitudinales des structures latérales qui sont ainsi exactement positionnées pour une bonne coopération.According to a particular characteristic, the device comprises a reference stop for the vertical positioning of said device in the corridor. This vertical positioning stop allows by a simple application of the pressurizing device in the corridor to directly put the holding means against the longitudinal grooves of the lateral structures which are thus exactly positioned for good cooperation.

Selon une caractéristique particulière, les éléments escamotables sont deux barres longitudinales parallèles. L'utilisation de deux barres parallèles donne une plus grande surface de retenue pour le dispositif qui est ainsi mieux tenu.According to a particular characteristic, the retractable elements are two parallel longitudinal bars. The use of two bars Parallels gives a larger holding area for the device which is thus better held.

Selon une première disposition, les éléments escamotables sont actionnés par un système de biellettes. Les biellettes sont rotatives autour d'un axe central disposé dans leur milieu tandis que leurs extrémités sont reliées à des barres de retenues ou lames de bridage. La rotation des biellettes dans un sens de rotation provoque l'écartement des lames pour bloquer le dispositif et dans l'autre sens leur retrait.According to a first arrangement, the retractable elements are actuated by a system of rods. The links are rotatable about a central axis disposed in their middle while their ends are connected to retaining bars or clamping blades. The rotation of the rods in a direction of rotation causes the spacing of the blades to block the device and in the other direction their removal.

Selon une seconde disposition, les éléments escamotables sont actionnés par un système de sabots. Les barres ou lames de retenue sont placées sur une plaque support sur laquelle elles peuvent coulisser, leurs extrémités intérieures sont biseautées et deux sabots coulissant longitudinalement l'un vers l'autre poussent vers l'extérieur chacune des lames afin de les faire entrer dans la rainure du panneau et d'effectuer le maintien du dispositif dans le couloir.According to a second provision, the retractable elements are actuated by a system of hooves. The retaining bars or blades are placed on a support plate on which they can slide, their inner ends are beveled and two longitudinally sliding shoes each push out each of the blades to bring them into the groove the panel and perform the holding of the device in the hallway.

Selon une caractéristique avantageuse, la mise sous vide de la chambre étanche est réalisée par un venturi. Le venturi est de réalisation et d'utilisation simple et rapide.According to an advantageous characteristic, the evacuation of the sealed chamber is performed by a venturi. The Venturi is simple and fast to make and use.

Selon une autre caractéristique, les parois latérales de la chambre étanche sont en mousse naturelle à cellules fermées. Grâce à cette matière, la réduction de hauteur de la chambre étanche lors de la mise sous vide est donnée par le rapport densité de la mousse et de la pression interne; lors de la mise à la pression atmosphérique, la chambre reprend sa hauteur initiale de façon non brutale et permet ainsi l'application d'une pression progressive et constante sur la bande collée.According to another feature, the side walls of the sealed chamber are natural closed-cell foam. With this material, the height reduction of the sealed chamber during the evacuation is given by the density ratio of the foam and the internal pressure; when the air pressure is set, the chamber resumes its initial height in a non-abrupt manner and thus allows the application of a progressive and constant pressure on the glued strip.

Le procédé selon l'invention, met en oeuvre un dispositif positionné dans le couloir où est exercée la pression, la chambre étanche étant mise sous vide d'air et la mise en pression est réalisée par la mise à l'atmosphère de ladite chambre.The method according to the invention implements a device positioned in the corridor where the pressure is exerted, the sealed chamber being evacuated with air and the pressurization is carried out by venting said chamber.

Selon une caractéristique particulière, le procédé met en oeuvre au moins deux dispositifs mis bout à bout dans le couloir où l'on souhaite exercer la pression. Il est ainsi possible de garantir une pression constante sur tourte la longueur du couloir entre les deux panneaux à étanchéifier, et cela quelque soit le temps de mise en pression nécessaire.According to a particular characteristic, the method uses at least two devices placed end to end in the corridor where it is desired to exert the pressure. It is thus possible to ensure a constant pressure on the pie the length of the corridor between the two panels to be sealed, and this regardless of the necessary pressurization time.

Une application particulière de l'invention est la mise en pression d'une bande collée pour la réalisation d'une paroi isolante et étanche d'une cuve intégrée dans une structure porteuse, notamment de navire de transport de gaz liquéfié, la cuve comportant deux membranes d'étanchéité successives, l'une primaire en contact avec le produit contenu dans la cuve et l'autre secondaire disposée entre la membrane primaire et la structure porteuse, ces deux membranes d'étanchéité étant alternées avec deux barrières thermiquement isolantes, ladite paroi isolante et étanche étant réalisée à partir d'un ensemble de panneaux préfabriqués comportant successivement, entre deux plaques rigides, l'isolant primaire, la membrane secondaire et l'isolant secondaire, Chaque panneau préfabriqué a la forme générale d'un parallélépipède rectangle, l'élément d'isolation primaire et l'élément d'isolation secondaire ayant respectivement, vus en plan, la forme d'un premier rectangle et d'un deuxième rectangle dont les côtés sont sensiblement parallèles, les longueurs et/ou la largeur du premier rectangle étant inférieures à celles du second rectangle afin de ménager un rebord périphérique, ledit procédé comprenant la mise en pression d'une bande collée de nappe souple comportant au moins une fine feuille métallique continue sur deux rebords périphériques adjacents de deux panneaux adjacents afin d'assurer la continuité de l'étanchéité de la membrane secondaire au niveau de la jonction de deux panneaux par l'application du dispositif de mise en pression précédemment décrit. Le dispositif est particulièrement adapté pour réaliser le joint étanche de la membrane secondaire entre deux panneaux préfabriqués car il faut maintenir sous pression la bande de nappe souple pendant une certaine durée, correspondant à la durée de polymérisation de la colle par exemple et à une certaine pression, de 0,1 à 0,2 bars environ, de manière répartie sur toute la surface collée.A particular application of the invention is the pressurization of a bonded strip for the production of an insulating and leaktight wall of a vessel integrated in a carrier structure, in particular of a liquefied gas transport vessel, the vessel comprising two successive sealing membranes, one primary in contact with the product contained in the tank and the other secondary disposed between the primary membrane and the carrier structure, these two sealing membranes being alternated with two thermally insulating barriers, said wall insulating and waterproof being made from a set of prefabricated panels successively comprising, between two rigid plates, the primary insulation, the secondary membrane and the secondary insulation, each prefabricated panel has the general shape of a rectangular parallelepiped, primary insulation element and the secondary insulation element respectively having, in plan view, the shape of a first rectangle angle and a second rectangle whose sides are substantially parallel, the lengths and / or the width of the first rectangle being smaller than those of the second rectangle to provide a peripheral flange, said method comprising pressurizing a glued strip flexible ply comprising at least one thin continuous metal sheet on two adjacent peripheral edges of two adjacent panels to ensure the continuity of the secondary membrane at the junction of two panels by the application of the setting device in pressure previously described. The device is particularly suitable for producing the seal of the secondary membrane between two prefabricated panels because it is necessary to maintain under pressure the strip of flexible sheet for a certain period, corresponding to the duration of polymerization of the adhesive, for example and at a certain pressure, from 0.1 to 0.2 bar approximately, distributed over the entire bonded surface.

L'invention sera mieux comprise à la lecture de la description qui va suivre donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés dans lesquels :

  • la figure 1 est une vue de coté d'un panneau isolant,
  • la figure 2 est une vue de coté de deux panneaux à relier entre eux,
  • la figure 3 est une vue en coupe du dispositif selon l'invention en position chambres sous vide,
  • la figure 4 est une vue en coupe du dispositif selon l'invention en position chambre à l'atmosphère,
  • la figure 5 est une vue en perspective du système d'actionnement par biellettes des barres escamotables,
  • la figure 6 est une vue de dessus d'une variante du système d'actionnement par sabots des barres escamotables en position rétractée,
  • la figure 7 est une vue de dessus de la variante de la figure 6 en position sortie.
The invention will be better understood on reading the following description given solely by way of example and with reference to the appended drawings in which:
  • the figure 1 is a side view of an insulating panel,
  • the figure 2 is a side view of two panels to link together,
  • the figure 3 is a sectional view of the device according to the invention in the vacuum chamber position,
  • the figure 4 is a sectional view of the device according to the invention in the chamber position to the atmosphere,
  • the figure 5 is a perspective view of the rod actuation system of the retractable bars,
  • the figure 6 is a top view of a variant of the hoof actuation system retractable bars in retracted position,
  • the figure 7 is a top view of the variant of the figure 6 in the out position.

Le panneau préfabriqué 1 (cf. figure 1) se compose d'un isolant primaire 10 et d'un isolant secondaire 11. Entre l'isolant primaire 10 et l'isolant secondaire 11 est inséré une membrane secondaire d'étanchéité 111 souple ou rigide et comportant au moins une fine feuille métallique continue. L'isolant primaire est recouvert d'un contre plaqué 102 qui assure la rigidité supérieure du panneau 1. L'isolant secondaire 11 est collé sur un contre plaqué 110 qui assure la rigidité inférieure du panneau 1. Une rainure 103 est prévue sous le contre plaqué 102. L'isolant primaire 10 est plus court et moins large que l'isolant secondaire 11 afin de créer un espace sur toute la périphérie du panneau 1 et crée un couloir 12 lorsque deux panneaux sont disposés côte à côte.The prefabricated panel 1 (cf. figure 1 ) consists of a primary insulation 10 and a secondary insulation 11. Between the primary insulation 10 and the secondary insulation 11 is inserted a flexible or rigid secondary membrane 111 and having at least one thin continuous metal sheet . The primary insulation is covered with a plywood 102 which provides the superior rigidity of the panel 1. The secondary insulation 11 is bonded to a plywood 110 which provides the lower rigidity of the panel 1. A groove 103 is provided under the counter The primary insulation 10 is shorter and narrower than the secondary insulation 11 to create a space around the periphery. of panel 1 and creates a corridor 12 when two panels are arranged side by side.

La figure 2 montre deux panneaux préfabriqués 1 entre lesquels est placé un joint isolant 2 sur toute la hauteur de l'isolant secondaire 11. L'isolant primaire 10 étant plus petit que l'isolant secondaire 11, un couloir 12 sépare les deux isolants primaires des deux panneaux 1. Une bande de nappe souple 3 comportant au moins une fine feuille métallique (ici une) continue est collée à cheval sur les deux isolants secondaires 11 et sur le joint isolant 2.The figure 2 shows two prefabricated panels 1 between which is placed an insulating seal 2 over the entire height of the secondary insulation 11. The primary insulation 10 being smaller than the secondary insulation 11, a corridor 12 separates the two primary insulators of the two panels 1. A strip of flexible ply 3 comprising at least one thin metallic sheet (here a) continuous is bonded astride the two secondary insulators 11 and the insulating seal 2.

Les figures 3 et 4 illustrent le positionnement du dispositif 4 dans le couloir 12. Le dispositif 4 comprend une plaque support 45, des lames de bridage 40 disposées de chaque côté du dispositif 4, au moins un patin de pressage 41 (ici deux), au moins une chambre étanche 42 (ici deux), des butées de mise en référence 43, au moins un conduit d'aspiration d'air 44 reliant chaque chambre étanche 42 au venturi ou à un système connu de mise sous vide (non représenté). Les parois latérales 420 de chaque chambre 42 est constitué par un bloc de mousse comme par exemple une mousse naturelle à cellules fermées, la partie inférieure de chaque chambre 42 est une barre longitudinale de contact 421, la partie supérieure 422 est une paroi percée d'au moins un trou 423 pour le passage des conduits 44. Une mousse de contact 424 est placée sous chaque chambre 42 sous la barre de contact 421, l'ensemble barre de contact 421 et mousse de contact 424 constituant alors le patin de pressage 41.The figures 3 and 4 illustrate the positioning of the device 4 in the corridor 12. The device 4 comprises a support plate 45, clamping blades 40 disposed on each side of the device 4, at least one pressing pad 41 (here two), at least one sealed chamber 42 (here two), referencing abutments 43, at least one air suction duct 44 connecting each sealed chamber 42 to the venturi or to a known vacuum system (not shown). The side walls 420 of each chamber 42 is constituted by a block of foam such as a closed-cell natural foam, the lower part of each chamber 42 is a longitudinal contact bar 421, the upper part 422 is a perforated wall of at least one hole 423 for the passage of the conduits 44. A contact foam 424 is placed under each chamber 42 under the contact bar 421, the contact bar assembly 421 and contact foam 424 then constituting the pressing pad 41.

Nous allons décrire le fonctionnement du dispositif 4. Les chambres 42 sont mises sous vide par un venturi (non représenté) par l'intermédiaire des conduits 44 et des trous 423. Par la mise sous vide des chambres, les parois en mousse desdites chambres se compriment, ainsi par exemple pendant la mise sous vide un bloc de mousse de 20cm de hauteur passe à 12-13 cm. Le dispositif 4 est inséré dans le couloir 12, la butée de mise en référence 43 arrête le dispositif en hauteur, les lames de bridage 40 sont écartées, elles entrent ainsi dans les rainures 103 afin de bloquer le dispositif 4. Les chambres 42 sont ensuite mises à la pression atmosphérique, ce qui provoque la descente de l'ensemble du patin de pressage 41 par la reprise de la forme initiale des blocs de mousse 420. Par cette descente, le patin 41 et la mousse 424 appliquent une pression constante sur la bande de nappe souple 3 collée précédemment afin d'assurer la prise de la colle.We will describe the operation of the device 4. The chambers 42 are evacuated by a venturi (not shown) via the conduits 44 and holes 423. By evacuation of the chambers, the foam walls of said chambers are compress, thus for example during the evacuation a block of foam of 20cm high passes to 12-13 cm. The device 4 is inserted in the corridor 12, the reference stop 43 stops the device in height, the clamping blades 40 are spaced apart, they thus enter the grooves 103 to block the device 4. The chambers 42 are then brought to atmospheric pressure, which causes the descent of the entire pressing pad 41 by the resumption of the initial shape of the foam blocks 420. descent, the pad 41 and the foam 424 apply a constant pressure on the flexible sheet of tape 3 bonded previously to ensure the setting of the adhesive.

Nous allons maintenant décrire différents modes de réalisation du moyen d'actionnement des lames de bridage 40.We will now describe various embodiments of the actuating means of the clamping blades 40.

Selon un premier mode représenté à la figure 5, les lames 40 sont actionnées par des biellettes 400. Chaque biellette 400 est rotative en son milieu 401 par rapport à la plaque support 45 et à chacune de ses extrémités 402 avec chaque lame 40. En position escamotée, les biellettes 400 présentent un certain angle par rapport aux bords longitudinaux 450 du support 45 et les lames 40 ne dépassent pas du support 45. La rotation des biellettes 400, ici dans le sens inverse des aiguilles d'une montre déplace les lames 400 vers l'extérieur du support 45, les lames 40 dépassent alors des bords 450 et assurent le bon positionnement du dispositif 4 par l'insertion des lames 40 dans les rainures 104. Ce mode est particulièrement bien adapté pour une largeur de couloir constante.According to a first mode represented at figure 5 , the blades 40 are actuated by rods 400. Each rod 400 is rotatable in its middle 401 relative to the support plate 45 and at each of its ends 402 with each blade 40. In retracted position, the rods 400 have a certain angle relative to the longitudinal edges 450 of the support 45 and the blades 40 do not protrude from the support 45. The rotation of the rods 400, here in the counterclockwise direction, moves the blades 400 towards the outside of the support 45, the The blades 40 then protrude edges 450 and ensure the correct positioning of the device 4 by inserting the blades 40 into the grooves 104. This mode is particularly well suited for a constant corridor width.

Selon un second mode de réalisation illustré aux figures 6 et 7, les lames 40 sont poussées par des sabots 403 coulissants dans la plaque support 45. Chaque sabot coulisse dans une rainure non représentée. En approchant les deux sabots 403 l'un vers l'autre, on écarte les lames 40 vers l'extérieur du support 45 de manière à les insérer dans les rainures 103. Cette disposition présente l'avantage d'un dispositif de mise sous pression qui peut être utilisé pour les couloirs de largeur variable.According to a second embodiment illustrated in Figures 6 and 7 , the blades 40 are pushed by shoes 403 sliding in the support plate 45. Each shoe slides in a not shown groove. By bringing the two shoes 403 closer to one another, the blades 40 are moved outwardly from the support 45 so as to insert them into the grooves 103. This arrangement has the advantage of a pressurizing device. which can be used for corridors of variable width.

Claims (10)

  1. A device (4) for applying pressure to a strip (3) of flexible sheet material stuck to the margins of two lateral structures (1), the device (4) being
    characterized in that it includes at least one leaktight chamber (42) having walls that are compressible, and means for evacuating the leaktight chamber.
  2. A device (4) according to claim 1, characterized in that it is placed in a passage (12) and includes retractable retaining means (40) disposed on either side of the longitudinal axis of the passage (12) and cooperating with longitudinal grooves (103) disposed in the lateral structures (1).
  3. A device (4) according claim 2,
    characterized in that it includes a reference abutment (43) for vertically positioning said device in the passage (12).
  4. A device (4) according to claim 2 or claim 3,
    characterized in that the retractable elements (40) are two parallel longitudinal bars.
  5. A device (4) according to claim 2 or claim 4,
    characterized in that the retractable elements (40) are actuated by a system of links (400).
  6. A device (4) according to claim 2 or claim 4,
    characterized in that the retractable elements (40) are actuated by a system of wedges (403).
  7. A device (4) according to any preceding claim,
    characterized in that the chamber (42) is evacuated by a Venturi.
  8. A device (4) according to any preceding claim,
    characterized in that the side walls (420) of the leaktight chamber (42) are made of natural foam having closed cells.
  9. A method implementing the device (4) according to any preceding claim, the method being characterized in that the device (4) is positioned in the passage (12) where pressure is to be exerted, the leaktight chamber (42) being evacuated of air, and pressure being applied by connecting said chamber (42) to the atmosphere.
  10. A method implementing at least two devices (4) according to any one of claims 2 to 8, the method being
    characterized in that the devices (4) are placed end-to-end in the passage (12) where pressure is to be exerted.
EP05300201A 2004-03-26 2005-03-21 Apparatus for applying pressure to insulating plates Not-in-force EP1579986B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0450598 2004-03-26
FR0450598A FR2868060B1 (en) 2004-03-26 2004-03-26 DEVICE FOR PRESSURIZING INSULATING PANELS

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Publication Number Publication Date
EP1579986A1 EP1579986A1 (en) 2005-09-28
EP1579986B1 true EP1579986B1 (en) 2008-11-19

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EP (1) EP1579986B1 (en)
JP (1) JP4841853B2 (en)
KR (1) KR101187176B1 (en)
CN (1) CN100556667C (en)
DE (1) DE602005011063D1 (en)
ES (1) ES2315821T3 (en)
FR (1) FR2868060B1 (en)

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FR2822815B1 (en) * 2001-03-27 2003-10-31 Gaz Transport & Technigaz MACHINE FOR BONDING A STRIP, METHOD OF BONDING A STRIP FOR PRODUCING AN INSULATING AND SEALED WALL, AND INSULATING AND SEALING WALL
KR100557354B1 (en) * 2003-08-08 2006-03-06 삼성중공업 주식회사 Method for making adiabatic protective wall of lng transport ship

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CN104500489A (en) * 2014-11-28 2015-04-08 柳州威力士液压设备有限公司 Hydraulic cylinder

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KR20060044505A (en) 2006-05-16
DE602005011063D1 (en) 2009-01-02
KR101187176B1 (en) 2012-09-28
FR2868060B1 (en) 2006-06-09
JP4841853B2 (en) 2011-12-21
CN1672915A (en) 2005-09-28
CN100556667C (en) 2009-11-04
ES2315821T3 (en) 2009-04-01
FR2868060A1 (en) 2005-09-30
JP2005289361A (en) 2005-10-20

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