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EP0064886B1 - Flüssigkeitsdichter und thermisch isolierende, in der tragenden Schiffsstruktur integrierter Tank - Google Patents

Flüssigkeitsdichter und thermisch isolierende, in der tragenden Schiffsstruktur integrierter Tank Download PDF

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Publication number
EP0064886B1
EP0064886B1 EP82400340A EP82400340A EP0064886B1 EP 0064886 B1 EP0064886 B1 EP 0064886B1 EP 82400340 A EP82400340 A EP 82400340A EP 82400340 A EP82400340 A EP 82400340A EP 0064886 B1 EP0064886 B1 EP 0064886B1
Authority
EP
European Patent Office
Prior art keywords
primary
fact
barrier
tank
insulating barrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82400340A
Other languages
English (en)
French (fr)
Other versions
EP0064886A1 (de
Inventor
Pierre Jean
Jean-Claude Letourneur
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.)
GAZ-TRANSPORT
Gaz Transport SARL
Original Assignee
GAZ-TRANSPORT
Gaz Transport SARL
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 GAZ-TRANSPORT, Gaz Transport SARL filed Critical GAZ-TRANSPORT
Publication of EP0064886A1 publication Critical patent/EP0064886A1/de
Application granted granted Critical
Publication of EP0064886B1 publication Critical patent/EP0064886B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/001—Thermal insulation specially adapted for cryogenic vessels
    • 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
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • F17C3/027—Wallpanels for so-called membrane tanks
    • 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 the production of sealed and thermally insulating tanks intended for the transport by sea of liquefied gases, and, in particular, for the transport of liquefied natural gases with a high methane content.
  • Such watertight and insulating tanks integrated into the carrying structure of a ship, are of the type which include two successive sealing barriers, one primary in the container with the product contained in the tank and the other secondary disposed between the primary barrier and the ship's supporting structure, these two sealing barriers being alternated with two thermally insulating barriers, the secondary insulating barrier consisting of a set of substantially parallelepipedal heat-insulating elements fixed against the carrying structure of the ship by means of retainer integral with the supporting structure, which cooperate with fasteners arranged at the edge of the elements of the secondary insulating barrier, said elements being separated from each other by substantially rectilinear joint zones where the aforementioned retaining members are located, the barrier primary insulation also consisting of a set of heat-insulating elements while pressing on the secondary sealing barrier, the secondary sealing barrier being constituted by metal strakes with raised edges towards the inside of the tank, said strakes being made of thin sheet metal with low coefficient of expansion and being welded edge on board, by their raised edges, on both sides of a welding wing, which
  • Tanks of this kind are known in particular from FR-A-24 13 260.
  • the sealing barriers and the thermally insulating barriers are subjected to forces causing deformations of said barriers.
  • the object of the invention is, above all, to provide a tank of the kind defined above in which the primary sealing barrier can be produced in a simpler manner while retaining the usual qualities, in particular a satisfactory lifetime.
  • a tank of the kind defined above is characterized in that, on the one hand, the primary insulating barrier is held in abutment on the secondary sealing barrier by means of anchoring members fixed to the carrying structure of the ship. , said anchoring members passing through the secondary sealing barrier, the sealing of the secondary sealing barrier being maintained by means of welds which connect the anchoring member to the strakes of the secondary sealing barrier, and that , on the other hand, the primary sealing barrier consists, in a manner known per se, of an assembly of sheets whose edges are welded overlapping, a sheet having part of its edge in direct contact with the inside of the tank, while the other part is in contact with the primary insulating barrier and is fixed on it, the connections of the angles of several adjacent sheets being made by welding.
  • the primary insulating barrier constitutes a support surface for the primary sealing barrier, which is perfectly retained relative to the supporting structure.
  • the deformations of the primary insulating barrier and of the primary sealing barrier will be reduced during transport, so that the strength and the service life of an assembly of sheets whose edges are welded overlapping will be satisfactory.
  • provision is made for the fixing of a portion of the edge of the sheets on the primary insulating barrier is carried out by localized welds on metal inserts provided on the corresponding face of the elements of the primary insulating barrier.
  • each element of the primary insulating barrier comprises, on the side of the interior of the tank, a plate of unexpanded material and that the fixing of a part of the edge of the sheets on the primary insulating barrier is produced by screws regularly distributed over the edge portion concerned, said screws being screwed into the aforementioned plates.
  • the welding which ensures the connection of several adjacent sheets is carried out on a metal piece of connection door by an element of the primary insulating barrier; in this case, either the metal connecting part is a metal insert, or else each element of the primary insulating barrier comprises, on the side of the interior of the tank, a plate of unexpanded material and the metallic connecting piece is a metallic sheet fixed by screwing on said plate.
  • the welding which ensures the connection of several adjacent sheets is carried out by covering the connection area of said sheets by a cover plate disposed towards the inside of the tank and welded to the sheets over its entire periphery.
  • the sheets of the primary sealing barrier are flat invar sheets having a thickness, preferably between 0.5 and 2 mm.
  • the sheets of the primary sealing barrier are embossed sheets of cryogenic steel having a thickness between 1 and 2 mm, the depth of the corrugations of the embossing being between 30 and 120 mm.
  • the elements of the secondary insulation barrier are panels of cellular material and those of the primary insulation barrier are boxes partitioned internally and filled with a particulate thermally insulating material.
  • the elements of the secondary insulation barrier are boxes filled with a thermally insulating particulate material and the elements of the primary insulation barrier are panels of cellular material, the large face of which faces towards the inside the tank is covered with a plate of solid unexpanded material.
  • the aforementioned unexpanded solid material plates are plywood plates.
  • the elements of the secondary insulation barrier are rectangular parallelepipeds all identical and the retaining members used for holding the secondary insulation barrier on the supporting structure are aligned in two perpendicular directions, the members of 'acrage associated with the primary insulation barrier being regularly arranged in the said alignments;
  • the retaining members are threaded studs welded by their base to the load-bearing structure of the ship, the fastenings associated therewith are plates, which are supported by screwing a nut on the associated stud, on a zone of the elements of the secondary insulation barrier, and the anchoring members are tubes screwed onto certain studs capable of constituting retaining members; each of said tubes carries, at its end furthest from the support structure, on the one hand, a support flange coming at the level of the secondary sealing barrier and, on the other hand, a nozzle comprising, in the first place, a base, which encloses the strake of the secondary sealing barrier between it and the support flange and makes it possible to seal by
  • the panels of cellular material have their two large faces covered with a sheet of unexpanded solid material, the fastenings associated with the retaining members of the secondary insulation barrier s' pressing simultaneously on two parallel protruding edges of the plates associated with two adjacent panels and arranged in the vicinity of the support structure, the plates disposed in the vicinity of the secondary sealing barrier comprising parallel grooves, in which the wings used for welding are engaged edge to edge of the metal strakes of the secondary sealing barrier; the grooves in which the welding wings are engaged are parallel to one of the alignments of retaining members; the boxes of the primary insulation barrier have two edges and internal partitions parallel to the welding wings, which protrude from the secondary sealing barrier, said wings being housed in gutters formed in the parallel partitions said wings; the edges of the primary insulation barrier elements, which are parallel to the weld flanges, have attached lugs which cooperate with the fasteners associated with the ends of the anchoring members.
  • each box of the secondary insulation barrier is carried, on its large face furthest from the support structure, parallel grooves in which the wings used for edge-to-edge welding are engaged.
  • the panels of cellular material of the primary insulation barrier comprise, on their face in contact with the secondary sealing barrier, gutters in which the welding wings of the secondary sealing barrier are engaged, each panel being glued by its edges to the adjacent panels and being held in abutment on the secondary sealing barrier by at least one anchoring member, the fixing of which bears on the bottom of a well formed in the panel and closed by a plug; each box of the secondary insulation barrier is held on the supporting structure by four retaining members arranged at each of its angles
  • the grooves where the welding wings are engaged have preferably a T-shaped cross section, while the welding wings have an L-shaped cross section.
  • the elements of the secondary insulation barrier rest on the supporting structure by means of parallel slats resting on strands of polymerizable resin, these slats constituting, by discontinuous elements, a geometric surface. defined independent of random deviations of the carrier with respect to its theoretical surface.
  • the areas of joint existing between the elements of the insulation barriers due to the presence of the retaining and anchoring members are filled with insulating material after tightening the fasteners and closed, behind the sheets constituting the sealing barriers, by slats supported in appropriate recesses made on the edges of the elements of the corresponding insulation barriers.
  • the sheets constituting the primary insulation barrier could be fixed on metal inserts; it can advantageously be provided that these metal inserts are pellets placed and maintained in perforations of corresponding shape made in the plate of the primary insulation barrier element, which the primary sealing barrier supports.
  • the tank angles are produced by means of a plurality of identical cross-pieces, arranged side by side and each consisting of two attachment half-wings and two support half-wings.
  • tank a hooking half-wing being in the extension of a support half-wing to constitute a wing of the cross-piece, the two wings of all the cross-pieces of the same angle connecting at the same edge substantially parallel to that of the angle of the tank in question, the half-wings for attaching the cross-pieces being fixed on the carrying structure of the ship and the half-wings supporting the cross-pieces being secured to the metal strakes of the secondary sealing barrier; in the angle of the support half-wings, which is oriented towards the side of the tank, the cross-pieces of the same tank angle support, on each of the support half-wings of the cross-piece, secondary shims held on several adjacent cross-pieces and covered , in the area of the angle of the angle iron to which they are fixed and of the side where the tank
  • the tank angles are produced by means of a plurality of identical secondary brackets arranged side by side and connecting along the same substantially edge parallel to that of the tank angle considered, these secondary brackets each being carried by four tubular members located two by two in the same plane perpendicular to the abovementioned edge, one of the pairs of tubular members extending towards the tank to support a plurality of identical primary brackets arranged side by side and connecting along the same edge substantially parallel to that of the secondary brackets, the primary and secondary brackets carrying shims coated with a metal sheet of the same kind as that which constitutes the barrier 'corresponding seal, said sheet being welded to said barrier; the primary and secondary brackets each receive two wedges at right angles, the metal covering sheets of which are covered, in the angle which they form by a welded connection angle; the tubular members, which support the primary brackets, pass through the secondary sealing barrier or its extension in a leaktight manner, two square stiffeners being
  • FIG. 1 a first embodiment of the sealed and insulating tank according to the invention; this tank is intended to be produced in a ship, for the transport of liquefied natural gas.
  • the carrier structure of the ship that is to say the double hull or the double partition, which supports the walls of the tank, has been designated by 1.
  • the wall of the supporting structure Due to manufacturing tolerances, the wall of the supporting structure has local deformations, which could be troublesome for the production of the tank according to the invention; in known manner, there are on the wall 1, plywood slats 2, which rest on strands of polymerizable resin, and the positioning of the slats 2 is governed so that they define, discontinuously, a Theoretical surface independent of the more or less good conformation of the wall 1.
  • Each element 3 consists of a rectangular parallelepiped made of a cellular material such as a polyurethane foam with closed cells, for example; the foam block 3a is covered on its two large rectangular faces with a backing plate 3b, 3c; the plate 3b is supported on the slats 2; the plate 3c supports the secondary sealing barrier constituted by invar strakes 4 assembled by welding with raised edges, on either side of a welding wing 5.
  • the plate 3b projects beyond the block of foam 3a all around the periphery of the block.
  • the plate 3c has grooves 6 having a cross section in T, said grooves being intended to receive, as shown by the magnifying glass of FIG. 1, a welding wing 5 having a cross section in L.
  • the grooves 6 are arranged perpendicular to the slats 2 and the primary insulation barrier elements 3 are surrounded, over the entire periphery of the plate 3b, by retaining members 7.
  • the retaining members 7 are threaded studs, which are welded by their base to the wall 1, perpendicular to the latter.
  • the studs 7 are distributed in alignments parallel to two perpendicular directions, one of the directions being parallel to the slats 2.
  • the alignments of studs 7, which are perpendicular to the slats 2 are spaced apart 1 m and aligns them studs 7, which are perpendicular to the previous ones, are spaced 3 m apart; this determines the dimensions of the secondary insulation barrier elements 3.
  • the width of the strakes 4 is 50 cm and the two grooves 6 formed on each of the plates 3c are symmetrical with respect to the major axis of said plate 3c.
  • the retaining members 7 are associated with fasteners 8 constituted by square plates, which come to bear on the projecting edges of the plates 3b.
  • the plates 8 are held by nuts 9, which are screwed onto the threaded studs 7. This ensures the maintenance of the elements 3 on the load-bearing structure 1 of the ship, with compensation for the thicknesses of the resin tubes on which the slats 2 rest thanks at the latitude of screwing on the threaded studs 7.
  • the spacing of the studs 7 is chosen so that a stud 7 is located at each angle of the elements 3.
  • a tubular member designated by 10 as a whole is connected, which member, taken in combination with the stud 7 associated therewith, constitutes an anchoring member intended for the fixing of the primary insulation barrier.
  • the tubular member 10 is screwed its base onto the stud 7 and is equipped at its other end with a support flange 11 which can come to bear in a recess 12 formed on the corresponding edge of the plate 3c.
  • a support flange 11 which can come to bear in a recess 12 formed on the corresponding edge of the plate 3c.
  • the upper face of the support flange 11 is located exactly at the level of the invar strake 4, for which it constitutes a support.
  • insulating strips are put in place intended to fill the space 13 existing between two adjacent elements 3 and the joint zone is closed at the support flanges 11 by means of slats 14, which bear in recesses 12 and close the joint areas to form a continuous support for the secondary sealing barrier constituted by strakes 4.
  • circular holes 15 are practiced in the strakes 4; these orifices 15 are located directly above a threaded housing formed in the central zone of the flange 11, housing where the threaded base is screwed with a nozzle designated by 16 as a whole.
  • the endpiece 16 comprises a base 17 which, by screwing the endpiece into the threaded housing of the support flange 11, can come to bear on the strake 4, all around the circular orifice 15. It then suffices to weld at the periphery of the base 17 for sealing around the anchoring member 7, 10, 16.
  • the end piece 16 has, at its upper part, a threaded zone with which a nut 18 cooperates.
  • the secondary sealing barrier produced by the straps in invar 4 welded to the raised edge on either side of the welding wings in invar 5, constitutes a tight barrier, on which the primary insulation barrier is placed. of the tank according to the invention.
  • This primary insulation barrier consists of plywood boxes designated by 19 as a whole. Each box 19 has an interior partition parallel to its edges and has the general shape of a rectangular parallelepiped having 1 meter long and 0.95 m wide; on the two edges separated by a distance of 0.95 m, there is reported a stud 20, which has at its ends a recess 21. The elements 19 are arranged so that the end piece 16 is at each of their angles.
  • the plate 22 can advantageously have a square shape.
  • insulating strips 23 are inserted below the studs 20; the joint zones formed above the tenons 20 are finally filled with insulation and closed by an attached batten 24.
  • the elements 19 of the primary insulating barrier have an internal partition formed by three spacers 25 parallel to the studs 20 and a plurality of spacers 26 perpendicular to the spacers 25.
  • One of the spacers 25 is arranged in a plane of symmetry of the element 19; the other two spacers 25 are thicker than the spacers 26 and are symmetrical with respect to the center of the element 19; these two other spacers 25 are located at the right of two welding wings 5 of the secondary sealing barrier and they comprise on their lower face a gutter 27, which constitutes a housing for the welding wings 5 forming a relief.
  • the wings 5 In order for the wings 5 to be able to enter the gutters 27, provision is made to produce the corresponding face of the elements 19 in three panels 19a separated from one another by the two gutters 27. In this way, the panels 19a can rest on the metal strakes 4, despite the presence of the projections formed by the welding wings 5.
  • each element 19 Along their edges, which are perpendicular to the tenons 20, the elements 19 come to bear against each other, while two adjacent elements 19 are separated from each other along the other edges by a batten 24 5 cm wide; in this way, the module occupied by a element 19 is a square of one meter by one meter.
  • Each element 19 is filled with a particular thermally insulating material, such as perlite.
  • each element 19 On its face opposite to that which is occupied by the panels 19a, each element 19 comprises a counter-plate 19b where metal inserts 28 are put in place allowing the fixing of the primary sealing barrier.
  • FIG. 7 shows four alternative embodiments of the metal inserts 28 on elements 19 of primary insulating barrier formed according to the first variant described above.
  • an insert 28a constituted by a circular hollow bowl, the edges of which are glued in a recess made on the underside of the plate 19b, the bowl 28a being, moreover, supported by a spacer 25 or 26 of element 19.
  • the insert 28b consists of a circular plate having a flange on one of its faces, said flange being blocked by tabs 29 stapled on the plate 19b to inside the element 19.
  • the insert 28c is produced by the assembly by riveting of two half-inserts, one of which comprises a base 30 fixed on the plate 19b to the inside the element 19 and the other of which constitutes a cap which comes to cap the first half-insert.
  • the insert 28d consists of a plate comprising a snap stud 31 at its lower part, said stud coming to snap into a clips 32 fixed in a recess on the internal face of the plate 19b.
  • the types of embodiment of the metal inserts 28 can be used in the same way for primary insulating barrier elements according to the second variant, which will be described in more detail and which corresponds to FIGS. 11 and 12: the only difference is that, if in the first variant, each insert is supported, in its box, by internal partitions, it is continuously supported, in the second variant, by the cellular material of the element.
  • the primary sealing barrier is constituted by an assembly of rectangular sheets 33, which are welded to each other overlapping.
  • a sheet 33 has two edges disposed above the adjacent sheet and two edges disposed below the adjacent sheet. The two edges, which are arranged above the adjacent sheets which they cover, are welded over their entire length to said sheets. The two edges, which are located below the adjacent sheets, are welded to the inserts 28 formed on the plates 19b of the elements 19. To achieve this welding, circular holes 34 of smaller diameter are formed on the corresponding edge of the sheets 33 to the diameter of the inserts 28, with which they cooperate. These orifices are each positioned in line with an insert 28.
  • the sheets 33 have a width of 2 meters and a length of 3 meters; each is arranged so that its median longitudinal axis coincides with the median longitudinal axis of an element 19. In this way, the overlapping of two adjacent sheets 33 takes place at the level of the median axis of an element 19 and it is on this median axis that the inserts used for welding will be found.
  • the orifices 34 are distributed every 33 cm and it is arranged so that the connection zone 35 of four sheets 33 is located in line with the central point of an element 19; at this central point, there is an insert 28 having a larger diameter than that of the inserts, which are located at the right of the orifices 34.
  • the welds made over the entire edge of the orifices 34 ensure the connection of the corresponding edge of the sheet 33 with the primary insulation barrier; the overlap by the adjacent sheet 33, with welding along the edge of said sheet 33, seals the primary sealing barrier, it being understood that in the zones 35, the welds are made in a sealed manner on the insert 28 of large diameter, which is located in line with said zone, the angles of the sheets 33 being cut down so that each sheet has a weld zone ensuring its connection with the insert 28.
  • the sheets 33 are invar sheets having a thickness of approximately 1 millimeter; in another embodiment, the sheets 33 are sheets of cryogenic steel, for example stainless steel with 18% nickel and 8% chromium, having a thickness of 1.5 millimeters, these sheets then being embossed, that is to say that they have undulations in two perpendicular directions, said undulations collecting the deformations due to the contraction in the cold.
  • cryogenic steel for example stainless steel with 18% nickel and 8% chromium
  • Figures 11 and 12 show another alternative embodiment of the tank according to the invention.
  • the secondary insulation barrier is produced by means of plywood boxes filled with a thermally insulating particulate material, such as perlite: these boxes have been designated by 119 as a whole; each box has a length of one meter and a width of 50 cm; they rest on slats 2 fixed by strands of polymerizable resin on a wall of supporting structure 1.
  • all the elements which are found identical to those of the first variant have been designated by the same reference numbers; this is the case with elements 1 and 2 which have just been mentioned.
  • the boxes 119 rest by their lower plate 119a on the slats 2 and support by their upper plate 119b the strakes invar 4 of the secondary sealing barrier.
  • the strakes 4 are assembled by welding with raised edges on either side of a welding wing 5, as in the first variant.
  • the welding wings 5 are threaded in grooves 6 made in the plate 119b along the median longitudinal axis of the boxes 119.
  • tenons 120 are arranged, which allow the fixing of the boxes 119 on the supporting structure 1 on the ship; the structure 1 carries, in an alignment direction parallel to the slats 2, retaining members constituted by threaded studs 7, with which are associated fixing plates 8, which bear on the pins 120 and are each locked in position by a nut 9.
  • a stud 7 is provided at each angle of the box 119.
  • each alignment of studs 7 all the meters, that is to say one stud out of two, are provided to associate the stud 7 with a member tubular 10 intended to constitute an anchoring member for the primary insulation barrier; at the end opposite to the stud 7, the tubular member 10 carries a support flange 11, which comes to jam in a recess 12 of the plate 119b of the box 119.
  • the screw connections on the studs 7 allow, given the length of the threaded part to make up for variations in thickness of the resin tubes on which the slats rest 2.
  • the support flange 11 serves, as in the first variant, to ensure the attachment of a nozzle 16, which passes through the strake 4 by a orifice 15, the endpiece 16 comprising a base 17 which is welded to the strake 4 all around the orifice 15 to ensure sealing.
  • Slats 114 supported in the recesses 12 ensure the closure of the joint areas in line with the retaining members, between two successive anchoring members; these slats restore the continuity of the support wall of the secondary sealing barrier.
  • the joint areas give rise to a padding of thermal insulation before placing the slats 114.
  • the primary insulation barrier consists of foam panels designated by 103 as a whole. These foam panels are rectangular parallelepipeds of 1 meter by 3 meters, which rest on the secondary sealing barrier constituted by the strakes 4 and which are covered, on their face opposite to that which rests on the strakes 4 , by a plywood plate 103c. The longitudinal edges of the plate 103c are arranged parallel to the welding wings 5 to 15 cm from these welding wings.
  • the foam 103a of the panel 103 comprises, on its face which rests on the strakes 4, gutters 127, where the welded wings 105 and the raised edges of the strakes 104 are housed.
  • the panels 103 are arranged with contiguous edges and their edges are glued during installation using a cryogenic adhesive.
  • each panel 103 is located at the right of a nozzle 16.
  • a well allowing free passage to said nozzle 16.
  • This well opens into a wider recess , where a counter plate 150 is put in place, which is threaded onto the end piece 16 and is brought to bear on the bottom of the abovementioned abutment by a nut 18, which cooperates with the threaded end of the end-piece 16, with the interposition of a washer 22.
  • the plate 22 thus ensures the fixing of the panels 103 of the primary insulating barrier thanks to the anchoring members constituted by the elements 7, 10 and 16.
  • an insulating resin is injected into the well 123 and the opening where the wafer 150 is located is plugged by means of a plug 151 consisting of a foam zone and a plywood washer.
  • the primary insulating barrier produced as indicated above, constitutes a support surface for the primary sealing barrier, support surface, which is perfectly retained relative to the support structure 1.
  • the primary sealing barrier is produced by an assembly of sheets 33 identical to that which has been described in the first alternative embodiment. This assembly is carried out as indicated for the first variant with overlap welds and using metal inserts 28 identical to those of the first variant and positioned like them at the orifices 34 formed on the edges of the sheets 33 and at the right of the zones 35 where the connection of four adjacent sheets 33 takes place.
  • FIGS. 13 and 14 a first embodiment of a connection with the supporting structure in a tank angle.
  • the primary sealing barrier consists of a sheet of embossed cryogenic steel designated by 233 in the drawing.
  • the two panels of the support structure at a right angle are designated by 1 as in FIGS. 1 to 12.
  • the tank angle is produced by means of a plurality of identical cross-pieces designated by 200 as a whole.
  • Each brace 200 is made up of two attachment half-wings 201 and two tank support half-wings 202, a attachment half-wing 201 being in the extension of a support half-wing 202 to constitute a wing of the crosspiece.
  • each support half-wing 202 carries a wooden wedge 203 covered with a sheet of invar 204; the wedges 203 are pushed towards the edge of the spider 200 by means of two pushing screws 205.
  • the cover sheets 204 come at the level of the surface plates 206 of the elements 207, which constitute the secondary insulation barrier.
  • the connection between the wedge 203 and the element 207 is carried out by means of a plywood slat 208, the edges of which are arranged in appropriate recesses of the wedge 203 and of the element 207.
  • the wedges 203 are bolted on the support half-wings 202 thanks to Ions 209; the secondary sealing barrier constituted by the invar strakes 4 partially covers the batten 208 and each strake 4 is connected to the right of this batten 208 with an invar fur 210 having the same cross section as the strake 4 but a thickness 1.5 millimeters while the strake 4 has a thickness of 0.7 millimeters.
  • connection of the fur 210 with the strake 4 is effected by overlap welding and the fur 210 covers the bolt heads 209, its end 210a constituting a weld edge on the covering sheet 204 of the wedge 203. All efforts , which are exerted on the secondary sealing barrier, are therefore transferred by the fur 210 on the shims 203 and from there on the cross 200.
  • a connection angle 211 is welded in the angle formed by the two metallic coatings 204 of the two wedges 203.
  • an insulating foam 212 is put in place, for example by injection.
  • the presence of the separate studs allows relative movement of said cross-pieces, although these these are linked by wedges 203 which have a length of approximately 3 meters and therefore connect several successive cross-pieces 200 to each other.
  • shims 213 made for example are placed inside the angle formed by the shims 203, made of a material known by the trade name of »Klegecel« then blocks 214 made of plywood, which constitute two layers each formed by two blocks at right angles.
  • the wedges 213 and 214 are held on the support wings 202 of the braces 200 by bolting using bolts 215 screwed into a ferrule 216 and which pass through the fur 210 and the sheet metal 204 and is screwed into the support half-wing 202 of the brace 200; the crossing of the end piece 216 through the secondary sealing barrier takes place in a sealed manner thanks to an annular base 217 of the end piece 216, a base which, when screwed, comes to bear on the sheet of the fur 210 and that we weld on this sheet on all its periphery.
  • On the wooden block 214 there is connected, by means of wood screws 218, a metal angle 219.
  • the stack of wedges 213, 214 and the angle 219 corresponds to the thickness of the elements of the insulation barrier.
  • the counterplate plate 220a of this primary insulation barrier which supports the primary sealing barrier is located at the angle 219; this plate 220a is connected to the angle iron 219 by a connection strip 221; the primary sealing barrier 233 is spot welded to the angle iron 219; this welding is carried out by creating orifices at the bottom of the corrugations of the primary sealing barrier 233 and in line with the angle 219 and by welding over the entire periphery of said orifices to ensure sealing at the same time as the mechanical connection.
  • this structure ensures, in the tank angles, not only the continuity of the sealing of the primary and secondary sealing barriers, but also the transfer of the forces due to contractions, upon cooling, on the supporting structure.
  • Figures 15 to 19 show another alternative embodiment of the angles for a tank according to the invention.
  • a plurality of secondary brackets 301 is used arranged side by side and having their common edge.
  • These secondary brackets 301 are connected to the two panels at right angles to the carrying structure 1 of the ship by two pairs 302a, 302b and 303a, 303b of tubular members perpendicular to the wings of the secondary bracket 301.
  • the pair of tubular members 302a , 302b does not cross the bracket 301 and these tubular members are welded, on one side to the support structure 1, and on the other, on a wing of the secondary bracket 301, the length of each member is adjusted can be achieved by a sliding sleeve which is welded at the time of implementation.
  • the pair of tubular members 303a, 303b crosses the secondary bracket 301 and presents threaded housings towards the interior of the tank where threaded end pieces 304 are put in place.
  • wooden wedges 305 are put in place, which connect several successive secondary brackets to each other and which are pushed against the edge of the square 301 by pushing screws not shown bearing on flanges 306 welded to the ends of the wings of the brackets 301.
  • resin is injected into the space 307 which separates the flange 306 and the block 305.
  • the block 305 is coated with a invar sheet 308 on which flanges 310 are connected which, as in the variant of FIGS. 13 and 14, extend the strakes 4 of the secondary sealing barrier.
  • the furs 310 are welded along their end edge 310a to the invar sheets 308.
  • a connection angle 309 produced by invar ensuring by welding the connection between the two sheets 308, which cover the two shims 305.
  • the end pieces 304 pass through the sheets 308 but have flanges 311, which are welded over their entire periphery to ensure sealing.
  • the secondary sealing barriers were thus connected in the considered angle of the tank.
  • the two ends 304 have an internally threaded housing and thus allow the fixing of a primary angle 312 which is assembled on the secondary angle 301 by bolts 313 cooperating with the threaded housings of the two ends 304, insulating elements 350 being interposed between angles 312 and fii) ies308.
  • wooden wedges 314 are placed, which play exactly the same role as the wedges 305 in the secondary brackets 301.
  • the wedges 314 are covered with a metallic sheet of invar 315 and are pushed in. position from the edges 316, the gap between the edges 316 and the shims 314 then being filled with injected resin 317.
  • An invar connection angle 318 provides sealing in the angle formed by the two sheets 315.
  • the primary sealing barrier is produced by a thick sheet 333 made of invar, sheet metal the end edge of which overlaps the invar sheets 315 and is welded over the entire length of its edge. There was thus made the sealed connection of the two primary sealing barriers 333 in a tank angle.
  • the tank structure according to the invention can therefore, without difficulty, give rise to tight corner connections, whether the primary sealing barrier is made with an embossed sheet of cryogenic steel or with a flat sheet made of invar .
  • FIG 20 shows only the primary barrier: the elements of the primary insulation barrier have been designated by 404 and these elements can be indifferently identical to elements 19 or elements 103 previously described.
  • the elements 404 therefore comprise on the side of the interior of the tank a plywood plate 404a and the sheets 33 of the primary sealing barrier are fixed to the plate 404a by a plurality of screws 400 regularly distributed along two adjacent edges of each sheet 33.
  • the screws 400 are ball screws with countersunk heads; the edges of the sheets 33, which receive them, are pierced with orifices of corresponding shape; the screws 400 are screwed into the plywood plates 404a.
  • Each sheet 33 therefore has two adjacent edges screwed as indicated above, while the other two edges overlap the screwed edges of two adjacent sheet and are welded to these two sheets over their entire length as it was previously indicated.
  • the sealing of this assembly of sheets is therefore ensured by the covering of the sheets and their welds; the attachment to the elements 404 of the primary insulating barrier is ensured by the screws 400.
  • Figure 21 shows a first possible modification of the embodiment of Figure 20.
  • this modification we wanted to avoid the introduction of metal inserts in some of the elements of the primary insulation barrier.
  • the metal inserts of the embodiment of FIG. 20 were replaced by metal sheets 402, which are placed on the plywood plates of the elements of the secondary insulation barrier and maintained on these plates for example at by means of four countersunk-head screws similar to screws 400.
  • the sealing in the connection areas of the angles of four adjacent sheets 33 is then carried out by welding the angles of the four sheets 33 onto the metal sheet 402.
  • FIG. 22 represents another modification of the embodiment of FIG. 20.
  • the sealing in the connection zone of four sheet metal angles 33 is obtained by arranging a cover plate on the inside of the tank. 403, which covers all of the four angles of the four adjacent sheets, said cover plate being welded over its entire periphery to seal the corner connection.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (34)

1. Dichter und isolierender, in die Tragkonstruktion eines Schiffes integrierter Behälter mit zwei aufeinanderfolgenden, abdichtenden Sperren, von denen eine primäre in Kontakt mit dem in dem Behälter enthaltenen Produkt steht und die andere sekundäre zwischen der primären Sperre und der Tragkonstruktion des Schiffes angeordnet ist, wobei diese beiden abdichtenden Sperren abwechselnd aufeinanderfolgend mit zwei thermisch isolierenden Sperren angeordnet sind, von denen die sekundäre isolierende Sperre (3) aus einer Gruppe wärmedämmender, im wesentlichen parallelepipedförmiger Elemente besteht, die an der Tragkonstruktion des Schiffes mit an der Tragkonstruktion (1) festgelegten Halteorganen (7) befestigt sind, die mit am Rand der Elemente der sekundären isolierenden Sperre angeordneten Befestigungen zusammenwirken, wobei diese Elemente voneinander durch im wesentlichen geradlinige Verbindungszonen dort getrennt sind, wo die genannten Halteorgane angeordnet sind, die primäre isolierende Sperre gleichermaßen aus einer Gruppe wärmedämmender Elemente gebildet wird, die an der sekundären abdichtenden Sperre gehalten werden, welche aus Metallplattengängen (4) mit zum Behälterinneren hochgebogenen Rändern besteht, wobei die Plattengänge aus dünnem Blech mit einem geringen Ausdehnungskoeffizienten bestehen und mit ihren hochgebogenen Rändern Rand an Rand auf beiden Seiten eines Schweißschenkels verschweißt sind, der mechanisch auf den Elementen der sekundären isolierenden Sperre gehalten ist, dadurch gekennzeichnet, daß einerseits die primäre isolierende Sperre aufliegend auf der sekundären abdichtenden Sperre mit Hilfe von Verankerungsorganen (7, 10, 11, 16) gehalten ist, die auf der Tragkonstruktion (1) des Schiffes befestigt sind und sich durch die sekundäre abdichtende Sperre hindurch erstrecken, deren Dichtheit durch Verschweißungen aufrechterhalten wird, die das Verankerungsorgan mit den Plattengängen (4) der sekundären abdichtenden Sperre verbinden und daß andererseits die primäre abdichtende Sperre von einem Satz von Blechen (33) gebildet wird, deren Ränder überlappend verschweißt sind, wobei ein Blech (33) mit einem Teil seines Randes in direktem Kontakt mit dem Behälterinneren steht, während der andere Teil mit der primären isolierenden Sperre in Kontakt steht und auf ihr befestigt ist und die Eckverbindungen mehrerer aneinandergrenzender Bleche (33) durch Schweißen ausgeführt sind.
2. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß die Befestigung eines Teils des Randes der Bleche (33) auf der primären isolierenden Sperre durch lokale Verschweißungen auf Metalleinsätzen (28) erfolgt, die auf der entsprechenden Fläche der Elemente (19, 103) der primären isolierenden Sperre vorgesehen sind.
3. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß jedes Element (404) der primären isolierenden Sperre auf der Innenseite des Behälters eine Platte (404a) aus einem nicht geschäumten Material aufweist und daß die Befestigung des einen Teils des Randes der Bleche (33) auf der primären isolierenden Sperren mit Schrauben (400) ausgeführt ist, die gleichmäßig auf dem betreffenden Teil des Randes verteilt sind und die in die genannten Platten (404a) geschraubt sind.
4. Behälter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Verschweißung, die die Verbindung mehrerer aneinanderstoßender Bleche (33) sicherstellt, auf einem Metallverbindungsstück (28,401,402) ausgeführt ist, das von einem Element (19, 103, 404) der primären isolierenden Sperre getragen wird.
5. Behälter nach Anspruch 4, dadurch gekennzeichnet, daß das Metallverbindungsstück ein Metalleinsatz (28, 401 ) ist.
6. Behälter nach Anspruch 4, dadurch gekennzeichnet, daß jedes Element (404) der primären isolierenden Sperre auf der Innenseite des Behälters eine Platte (404a) aus einem nicht geschäumten Material aufweist und daß das Metallverbindungsstück eine Metallfolie (402) ist, die durch Verschraubung auf der Platte (404a) befestigt ist.
7. Behälter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Verschweißung, die die Verbindung mehrerer aneinanderstoßender Bleche (33) sicherstellt, so ausgeführt wird, daß die Verbindungszone der Bleche durch eine Deckplatte (403) überlappt wird, die zum Behälterinneren hin angeordnet und auf den Blechen (33) auf ihrem ganzen Umfang verschweißt ist.
8. Behälter nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Bleche der primären abdichtenden Sperre ebene Bleche aus Invar mit einer Dicke zwischen 0,5 und 2 mm sind.
9. Behälter nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Bleche der primären abdichtenden Sperre gaufrierte Bleche aus Kryogenstahl sind, die eine Dicke zwischen 1 und 2 mm haben, wobei die Tiefe der Gaufrierwellungen zwischen 30 und 120 mm liegt.
10. Behälter nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Elemente der sekundären isolierenden Sperre Tafeln (3) aus einem zellenartigen Material sind und die Elemente der primären isolierenden Sperre innen abgeschottete Kammern (19) sind, die mit einem teilchenförmigen thermisch isolierenden Material gefüllt sind.
11. Behälter nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Elemente der sekundären isolierenden Sperre Kammern (119) sind, die mit einem teilchenförmigen thermisch isolierenden Material gefüllt sind, und daß die Elemente der primären isolierenden Sperre Tafeln (103) aus zellenartigem Material sind, deren große, zum Behälterinneren gerichtete Fläche mit einer Platte (103c) aus festem nicht geschäumten Material bedeckt ist.
12. Behälter nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die Elemente (3, 119) der sekundären isolierenden Sperre identische Quader sind und daß die Halteorgane (7) zum Halten der sekundären isolierenden Sperre auf der Tragkonstruktion (1) längs zweier senkrechter Richtungen ausgerichtet sind, wobei die Verankerungsorgane (7, 10,11,16) mit der primären isolierenden Sperre verbunden sind, und gleichmäßig in diesen Ausrichtungen angeordnet sind.
13. Behälter nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Halteorgane (7) Gewindebolzen sind, sie mit ihrer Grundfläche auf der Tragkonstruktion (1) des Schiffes aufgeschweißt sind, daß die ihnen zugeordneten Befestigungen Plättchen (8) sind, die durch das Anziehen einer Mutter (9) auf den zugeordneten Bolzen in einer Zone der Elemente (3, 119) der sekundären isolierenden Sperre gehalten, und daß die Verankerungsorgane Rohre (10) aufweisen, die auf bestimmten Bolzen (7) geschraubt sind, die geeignet sind, Halteorgane zu bilden.
14. Behälter nach Anspruch 13, dadurch gekennzeichnet, daß jedes der Rohre (10) an seinem von der Tragkonstruktion (1) am weitesten entfernten Ende einerseits eine Bundstütze (11) trägt, die bis auf die Höhe der sekundären abdichtenden Sperre reicht, und andererseits einen Ansatz (16) trägt, der erstens eine Stützfläche (17) aufweist, die den Plattengang (4) der sekundären abdichtenden Sperre zwischen sich und der Bundstütze (11) umschließt und erlaubt, die Dichtheit durch Verschweißung seiner Ränder auf den Plattengängen (4) der sekundären abdichtenden Sperre sicherzustellen, und zweitens einen Gewindeabschnitt aufweist, mit dem eine Befestigung (22,18) zusammenwirkt, die die Elemente (19, 103) der primären isolierenden Sperre bezüglich der Tragkonstruktion (1) hält.
15. Behälter nach Anspruch 10 oder in Kombination mit einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, daß die Tafeln (3) aus zellenartigem Material auf ihren beiden großen Flächen mit einer Platte (3b, 3c) aus festem, nicht geschäumten Material bedeckt sind, wobei die den Halteorganen (7) zugeordneten Befestigungen (8) der sekundären isolierenden Sperre sich auf zwei überstehenden Rändern abstützen, die zu den Platten (3b) parallel sind, welche mit zwei angrenzenden Tafeln (3) verbunden sind und die in der Nähe der Tragkonstruktion (1) angeordnet sind, wobei die in der Nähe der sekundären abdichtenden Sperre angebrachten Platten (3c) parallele Nuten (6) aufweisen, in die die Schenkel (5) eingreifen, die als Rand-Rand-Verschweißung der Metallplattengänge (4) der sekundären abdichtenden Sperre dienen.
16. Behälter nach den Ansprüchen 13, und 15, dadurch gekennzeichnet, daß die Nuten (6) dort, wo die Schenkel (5) der Verschweißung eingreifen, parallel zu einer der Ausrichtungen der Halteorgane (7) sind.
17. Behälter nach einem der Ansprüche 10, 15 oder 16, dadurch gekennzeichnet, daß die Kammern (19) der primären isolierenden Sperre zwei Ränder und innere Abschottungen (25) haben, die parallel zu den Schenkeln (5) der Verschweißungen sind, die auf der sekundären abdichtenden Sperre Vorsprünge bilden, wobei die Schenkel (5) in Rinnen (27) in den zu den Schenkeln (5) parallelen Abschottungen aufgenommen sind.
18. Behälter nach den Ansprüchen 14 und 17, dadurch gekennzeichnet, daß die Ränder der zu den Schenkeln (5) der Verschweißungen parallelen Elemente (19) der primären isolierenden Sperre aufgesetzten Stifte (20) aufweisen, mit denen die Befestigungen (22, 18) zusammenwirken, die mit den Ansätzen (16) der Verankerungsorgane verbunden sind.
19. Behälter nach den Ansprüchen 11 und 12, dadurch gekennzeichnet, daß jede Kammer (119) der sekundären isolierenden Sperre auf ihrer großen, von der Tragkonstruktion (1) am weitesten entfernten Fläche (119b) parallele Nuten (6), in die die Schenkel (5) eingreifen, die als Randan-Rand-Verschweißung der Metallplattengänge (4) der sekundären abdichtenden Sperre dienen, und auf jedem ihrer zu den genannten Nuten (6) senkrechten Rändern in der Nähe der Tragkonstruktion (1) einen aufgesetzten Stift (120) trägt, auf dem die mit den Halteorganen (7) verbundenen Befestigungen (8, 9) aufliegen, wobei die Ränder der Kammer, die keinen Stift tragen, mit einem entsprechenden Rand einer angrenzenden Kammer (119) in Berührung kommen.
20. Behälter nach einem der Ansprüche 11 oder 19 oder in Kombination mit einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, daß die Tafeln (103) aus zellenartigem Material der primären isolierenden Sperre auf ihren mit der sekundären abdichtenden Sperre in Kontakt stehenden Seiten Rinnen (127) dort aufweisen, wo die Schenkel (5) der Verschweißung der sekundären abdichtenden Sperre eingreifen, wobei jede Tafel (103) an ihren Rändern mit angrenzenden Tafeln (103) verklebt ist und auf der sekundären abdichtenden Sperre aufliegend von mindestens einem Verankerungsorgan (7,10,11,16) gehalten wird, dessen Befestigung (150, 22, 11, 16) gehalten wird, dessen Befestigung (150, 22, 18) in der Aussparung einer Bohrung in der Tafel (103) abgestützt ist, die mit einem Stopfen (151) verschlossen ist.
21. Behälter nach Anspruch 13 mit Anspruch 19 oder 20, dadurch gekennzeichnet, daß jede Kammer (119) der sekundären isolierenden Sperre an der Tragkonstruktion (1) von vier Halteorganen (7) gehalten ist, die an jeder ihrer Ecken angeordnet sind, wobei zwei dieser vier Halteorgane, die auf der gleichen Senkrechten zu den Stiften (120) der Kammer (119) angeordnet sind, Rohre (10) tragen, die Verankerungsorgane bilden.
22. Behälter nach Anspruch 15 oder 19, dadurch gekennzeichnet, daß die Nuten (6), in die die Schenkel (5) der Verschweißungen eingreifen, einen T-förmigen Querschnitt haben, während die Schenkel (5) der Verschweißungen einen L-förmigen Querschnitt aufweisen.
23. Behälter nach einem der Ansprüche 1 bis 22 dadurch gekennzeichnet, daß die Elemente (3, 119) der sekundären isolierenden Sperre mit parallelen Latten (2), die auf Wülsten aus polymerisierbarem Harz ruhen, auf der Tragkonstruktion (1) abgestützt sind, wobei diese Latten (2) durch Unterbrechungselemente eine bestimmte geometrische Oberfläche bilden, die unabhängig von zufälligen Abweichungen der Tragkonstruktion (1) bezogen auf ihre theoretische Oberfläche ist.
24. Behälter nach einem der Ansprüche 1 bis 23, dadurch gekennzeichnet, daß die Verbindungszonen, die zwischen den Elementen (3, 19, 119) der isolierenden Sperren aufgrund des Vorhandenseins der Halteorgane (7) und Verankerungsorgane (10, 11, 16) bestehen, nach dem Spannen der Befestigungen mit Isoliermaterial gefüllt und auf der Rückseite der Bleche (4, 33), welche die abdichtenden Sperren bilden, mit Leisten (14, 24, 114) verschlossen werden, die in geeigneten Aussparungen auf den Rändern der Elemente (3, 19, 119) der entsprechenden isolierenden Sperren gehalten sind.
25. Behälter nach Anspruch 2 oder 5 oder in Kombination mit einem der Ansprüche 8 bis 24, dadurch gekennzeichnet, daß die Metalleinsätze (28) der Elemente (19, 103) der primären isolierenden Sperre Scheibchen sind, die in entsprechend geformten Löchern positioniert und gehalten sind, die in der Platte (19b) des Elementes (19) der primären isolierenden Sperre ausgebildet sind, die die primäre abdichtende Sperre trägt.
26. Behälter nach einem der Ansprüche 1 bis 25, dadurch gekennzeichnet, daß die Ecken des Behälters von einer Vielzahl identischer Tragkreuze (200) gebildet werden, die Seite an Seite angeordnet sind und jeweils von zwei Aufhängungshalbschenkeln (201) und von zwei Traghalbschenkeln (202) des Behälters gebildet werden, wobei ein Aufhängungshalbschenkel (201) sich in der Verlängerung eines Traghalbschenkels (202) befindet, um einen Tragkreuzschenkel zu bilden, die zwei Schenkel aller Tragkreuze (200) ein und derselben Ecke längs einer gleichen Kante verbunden sind, die im wesentlichen parallel zu der der Ecke des betrachteten Behälters ist, die Aufhängungshalbschenkel (201) der Tragkreuze (200) an der Tragkonstruktion (1) des Schiffes befestigt sind und die Traghalbschenkel (202) der Tragkreuze (200) an den Metallplattengängen (4) der sekundären abdichtenden Sperre festgelegt sind.
27. Behälter nach Anspruch 26, dadurch gekennzeichnet, daß in der Ecke der Traghalbschenkel (202), die zum Behälter ausgerichtet ist, die Tragkreuze (200) ein und derselben Behälterecke auf jedem der Traghalbschenkel (202) der Tragkreuze sekundäre Zwischenlagen (203) tragen, die auf mehreren benachbarten Tragkreuzen (200) gehalten und auf der Seite, auf der sich der Behälter befindet, von einem Blech (204) abgedeckt werden, das aus demselben Metall wie die Plattengänge (4) der sekundären abdichtenden Ebene befinden und auf ihnen angeschweißt werden.
28. Behälter nach Anspruch 27, dadurch gekennzeichnet, daß ein Verbindungswinkel (211) auf die Bleche (204) geschweißt ist, die die zwei sekundären Zwischenlagen (203) bedecken, die in einer Ecke des Behälters aneinanderstoßen.
29. Behälter nach einem der Ansprüche 21 oder 28, dadurch gekennzeichnet, daß primäre Zwischenlagen (213, 214) in der Ecke der sekundären Zwischenlagen (203) angebracht und an den Tragkreuzen (200) mit Aufhängungsorganen (215, 216, 217) befestigt sind, die die sekundäre abdichtende Sperre oder ihre Verlängerung abdichtend durchsetzen, wobei die primären Zwischenlagen (213, 214) einen Metallwinkel (219) tragen, auf den die primäre abdichtende Sperre (233) geschweißt ist.
30. Behälter nach einem der Ansprüche 1 bis 25, dadurch gekennzeichnet, daß die Ecken des Behälters von einer Vielzahl identischer sekundärer Winkelstücke (301) gebildet werden, die Seite an Seite angeordnet und längs ein und derselben Kante verbunden sind, die im wesentlichen zu der der betrachteten Behälterecke parallel ist, wobei die sekundären Winkelstücke (301) jeweils von vier rohrförmigen Organen (302a, 302b, 303a, 303b) getragen werden, die jeweils zu zweit in der gleichen Ebene senkrecht zu der genannten Kante angeordnet sind, die Paare der rohrförmigen Organe (303aa, 303b) zum Behälter hin verlängert sind und eine Vielzahl identischer primärer Winkelstücke (312) tragen, die Seite an Seite angeordnet und längs ein und derselben Kante verbunden sind, die im wesentlichen parallel zu der der sekundären Winkelstücke (301) ist, die primären Winkelstücke (312) und die sekundären Winkelstücke (301) Zwischenlagen (314, 305) tragen, die mit einer Metallfolie (315, 308) derselben Art bedeckt sind, die die entsprechende abdichtende Sperre bildet, und die Folie auf dieser Sperre aufgeschweißt ist.
31. Behälter nach Anspruch 30, dadurch gekennzeichnet, daß die primären Winkelstücke (301) jeweils zwei Zwischenlagen (314, 305) im rechten Winkel aufnehmen, deren abdeckende Metallfolien (315, 308) in der Ecke, die sie bilden, mit einem angeschweißten Verbindungswinkel (318, 309) bedeckt sind.
32. Behälter nach Anspruch 30 oder 31, dadurch gekennzeichnet, daß die rohrförmigen Organe (303a, 303b), die die primären Winkelstücke (312) tragen, die sekundäre abdichtende Sperre oder ihre Verlängerung abdichtend durchsetzen, wobei zwei Winkelverstärkungsglieder (319) in jedem primären Winkelstück (312) auf beiden Seiten der rohrförmigen Organe (303a, 303b), die es tragen, angeordnet sind.
33. Behälter nach einem der Ansprüche 30 bis 32, dadurch gekennzeichnet, daß die sekundären Winkelstücke (301) ein Winkelverstärkungsglied (320) an der Stelle eines jeden Paares von rohrförmigen Organen (302a, 302b) aufweisen, das sich nicht bis zu einem primären Winkelstück (312) erstreckt.
34. Behälter nach einem der Ansprüche 30 bis 33, dadurch gekennzeichnet, daß die primären Winkelstücke (312) und die sekundären Winkelstücke (301), parallel zu ihrer Kante gemessen, dieselbe Länge haben und daß die Trennungsebene von zwei benachbarten primären Winkelstücken (312) sich an der Stelle eines Verstärkungsgliedes (320) eines sekundären Winkelstückes befindet.
EP82400340A 1981-04-30 1982-02-26 Flüssigkeitsdichter und thermisch isolierende, in der tragenden Schiffsstruktur integrierter Tank Expired EP0064886B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8108763A FR2504882B1 (fr) 1981-04-30 1981-04-30 Cuve etanche et thermiquement isolante integree a la structure porteuse d'un navire
FR8108763 1981-04-30

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EP0064886A1 EP0064886A1 (de) 1982-11-17
EP0064886B1 true EP0064886B1 (de) 1985-07-31

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EP (1) EP0064886B1 (de)
JP (1) JPS584687A (de)
KR (1) KR880002146B1 (de)
DE (2) DE64886T1 (de)
FR (1) FR2504882B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0151265A1 (de) * 1984-02-01 1985-08-14 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Isolierte Hohlkammerwand
FR2629897A1 (fr) * 1988-04-08 1989-10-13 Gaz Transport Cuve etanche et thermiquement isolante perfectionnee, integree a la structure porteuse d'un navire
FR2641305A1 (fr) * 1988-12-29 1990-07-06 Technigaz Ste Nle Structure etanche thermiquement isolante de paroi interne d'enceinte seche
US5447112A (en) * 1993-09-09 1995-09-05 Gaz Transport Watertight and thermally insulating tank built into the bearing structure of a ship
US5450806A (en) * 1993-09-09 1995-09-19 Gaz Transport Watertight and thermally insulating tank built into the bearing structure of a ship having a simplified corner structure

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KR100760482B1 (ko) * 2006-07-12 2007-09-20 한국과학기술원 액화천연가스 운반선의 단열방벽 접합구조 및 그 방법
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JP5166603B2 (ja) * 2008-05-02 2013-03-21 サムスン ヘヴィ インダストリーズ カンパニー リミテッド 貨物倉インシュレーションパネルの固定装置及びこれを用いたインシュレーションパネル
FR2944087B1 (fr) * 2009-04-03 2011-04-08 Gaztransp Et Technigaz Perfectionnement pour cuve etanche et thermiquement isolante integree dans une structure porteuse
FR2968284B1 (fr) * 2010-12-01 2013-12-20 Gaztransp Et Technigaz Barriere d'etancheite pour une paroi de cuve
KR101408356B1 (ko) * 2011-10-26 2014-06-18 대우조선해양 주식회사 화물창의 단열박스 고정장치
KR101310959B1 (ko) * 2011-10-26 2013-10-14 대우조선해양 주식회사 화물창의 단열박스 고정구조물
FR2991748B1 (fr) 2012-06-11 2015-02-20 Gaztransp Et Technigaz Cuve etanche et thermiquement isolante
KR101383688B1 (ko) * 2012-08-09 2014-04-09 대우조선해양 주식회사 Ｌｎｇ 화물창 방벽 시스템 및 ｌｎｇ 화물창의 방벽 시공 방법
FR3004234B1 (fr) * 2013-04-09 2016-07-29 Gaztransport Et Technigaz Cuve etanche et isolante ayant une barriere d'etancheite susceptible localement d'un glissement par rapport a la barriere isolante
FR3004416B1 (fr) * 2013-04-12 2015-04-03 Gaztransp Et Technigaz Membrane etanche et son procede de fabrication
FR3052227B1 (fr) * 2016-06-01 2018-12-07 Gaztransport Et Technigaz Bloc isolant et cuve etanche et thermiquement isolante integree dans une structure porteuse polyedrique
FR3074560B1 (fr) * 2017-12-04 2021-06-04 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante
WO2019224475A2 (fr) 2018-05-22 2019-11-28 Gaztransport Et Technigaz Dispositif de detection de fuite
FR3082274B1 (fr) 2018-06-06 2021-11-19 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante
FR3082594B1 (fr) 2018-06-13 2021-12-31 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante
FR3085199B1 (fr) * 2018-08-24 2020-07-17 Gaztransport Et Technigaz Paroi de cuve etanche et thermiquement isolante
KR102168127B1 (ko) * 2019-01-25 2020-10-20 대우조선해양 주식회사 액화가스 화물창의 단열시스템
FR3096458B1 (fr) 2019-05-21 2021-04-23 Gaztransport Et Technigaz Dispositif de détection de fuite
FR3096457B1 (fr) 2019-05-21 2021-04-16 Gaztransport Et Technigaz Cloche de detection de fuite et son procede d’utilisation
FR3097934B1 (fr) * 2019-06-28 2022-01-28 Gaztransport Et Technigaz Procédé de fabrication d'une structure d'angle pour cuve
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FR3115880B1 (fr) 2020-10-29 2023-05-26 Gaztransport Et Technigaz Dispositif de test d’étanchéité d’une membrane de cuve étanche et thermiquement isolante et procédé de détection de fuite associé
FR3116100B1 (fr) * 2020-11-10 2022-11-04 Gaztransport Et Technigaz Procédé de fabrication d’une barrière thermiquement isolante pour une cuve
FR3116101B1 (fr) * 2020-11-10 2023-04-28 Gaztransport Et Technigaz Procédé de fabrication d’une barrière thermiquement isolante pour une cuve
FR3128508B1 (fr) * 2021-10-22 2024-05-31 Gaztransport Et Technigaz Cuve étanche et thermiquement isolante
CN114962983B (zh) * 2022-06-29 2024-03-08 中太能源科技(上海)有限公司 用于储存液化气体的储存容器
CN114962984B (zh) * 2022-06-29 2024-02-02 中太能源科技(上海)有限公司 用于储存液化气体的储存容器及其装配方法
CN115817725A (zh) * 2022-12-12 2023-03-21 中太海事技术(上海)有限公司 一种波纹膜的布置形式
CN117048777B (zh) * 2023-10-13 2024-02-09 沪东中华造船(集团)有限公司 一种薄膜型围护系统结构
CN117048799B (zh) * 2023-10-13 2024-02-09 沪东中华造船(集团)有限公司 一种薄膜型围护系统的建造方法

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Publication number Priority date Publication date Assignee Title
EP0151265A1 (de) * 1984-02-01 1985-08-14 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Isolierte Hohlkammerwand
FR2629897A1 (fr) * 1988-04-08 1989-10-13 Gaz Transport Cuve etanche et thermiquement isolante perfectionnee, integree a la structure porteuse d'un navire
WO1989009909A1 (fr) * 1988-04-08 1989-10-19 Gaz-Transport Cuve etanche et thermiquement isolante perfectionnee, integree a la structure porteuse d'un navire
FR2641305A1 (fr) * 1988-12-29 1990-07-06 Technigaz Ste Nle Structure etanche thermiquement isolante de paroi interne d'enceinte seche
EP0379822A1 (de) * 1988-12-29 1990-08-01 Societe Nouvelle Technigaz Thermisch isolierende Abdichtung der Innenwand eines Trockenraumes
US5447112A (en) * 1993-09-09 1995-09-05 Gaz Transport Watertight and thermally insulating tank built into the bearing structure of a ship
US5450806A (en) * 1993-09-09 1995-09-19 Gaz Transport Watertight and thermally insulating tank built into the bearing structure of a ship having a simplified corner structure

Also Published As

Publication number Publication date
EP0064886A1 (de) 1982-11-17
DE64886T1 (de) 1983-05-26
FR2504882B1 (fr) 1985-11-08
DE3264987D1 (en) 1985-09-05
FR2504882A1 (fr) 1982-11-05
JPS584687A (ja) 1983-01-11
KR880002146B1 (ko) 1988-10-17

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