DE2144413A1 - Tight heat-insulated container - Google Patents

Abstract

Methane tanker comprises two heat insulating barriers and two fluid-tight barriers, positioned alternately with a fluid-tight barrier innermost and the outermost insulating barrier attached to the hull of the ship. The other fluid-tight barrier is positioned between the two insulating barriers and comprises vertical plates joined together by welding to horizontal metallic strips. One edge of each strip is slidably connected to the outer insulating barrier and the other edge is resiliently connected to the inner insulating barrier.

Description

2U4413

PATENT ADVOCATE t

DR.-ING. BY KREISLER DR.-ING. SCHÖNWALD DR.-ING. TH. MEYER DR. FUES DIPL.-CHEM. ALEK VON KREISLER

DIPL.-CHEM. CAROLA KELLER DR.-ING. KLOPSCH

Dipl.-Ing. Selting

COLOGNE 1, DEICHMANNHAUS

'September 3, 71 Sg-est

GAZ TRANSPORT

45 Boulevard Haussmann, Paris 9eme, France

Tight heat-insulated container

The invention relates to a tight heat insulated Container, which is integrated with the supporting structure of a ship and consists of two sealing walls as well there is two thermal insulation walls, of which the first sealing wall forms the inner wall of the container which are connected to the outside by the first insulating wall, the second sealing wall and the second insulating wall, and in which the second insulating wall is attached to the ship's wall and the insulating walls consist of chambers, on which the sealing walls rest in the form of plates with edges bent towards the inside of the container and are slidably attached to the insulating walls.

Such containers or ships are used for the sea transport of liquefied gases, in particular for related to the transport of liquefied natural gas with a high methane content.

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- In FR-PS 1 438 530 is a dense, isothermal Described container that is integrated with the supporting structure of a ship and consists of two adjacent Sealing walls. A first sealing wall is in place in contact with the liquefied gas to be transported, while the second sealing wall is arranged between the first sealing wall and the ship's hull is. Both sealing walls alternate with two thermal insulating layers, hereinafter referred to as "insulating walls". With the well-known container the second insulating wall consists of chambers that are filled with a thermal insulating material and attached directly to the rigid double hull or are attached to the double partition wall of the ship by means of screw bolts. the Screw bolts are welded to the ship's wall.

The chambers are gas-permeable and are arranged in such a way that gaps between them allow free gas circulation enable. The second sealing wall consists of small metal plates, the edges of which face the interior of the ship are turned. The metal plates have a height which is substantially the same as that of the heat insulating material Chambers. The plates are connected to one another by welding. Your attachment to the Isolation wall takes place through üleitfugen, so that a shift between the sealing wall and the insulating wall in Limits is possible. The first insulating tape also consists of chambers filled with thermal insulation material together. Here, too, precautions similar to those for the second insulating wall are taken to ensure free gas circulation to enable. The chambers are fastened by screws on a series of vertical metal profiles, which are arranged between the vertical rows of chambers. The profiles themselves are fastened with support pieces, which seal the second cross wall with hangers. The brackets are on the for it

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provided places along the horizontal wooden planks attached to these. The wooden planks are in turn supported at the points mentioned and on consoles attached, which are welded to the carrier fuselage. The first sealing wall is made, as is the second sealing wall, made of sheets with bent edges, the height of which is essentially the same like that of the chambers with the thermal insulation material. The panels are connected to each other by Welding in the same way as for the second sealing wall. The fastening of the panels on the insulating wall happens through sliding joints.

It has been found that with such a container difficulties arise from the design the mechanical connection between the two sealing walls and the carrier hull of the ship. In particular, the first insulating wall and the corresponding sealing wall are fixed with vertical profiles attached to the double hull of the ship. The vertical profiles are secured by anchoring devices running across pass through the second sealing wall, connected to the horizontal planks. The making of this mechanical connections with horizontal planks and vertical profiles is complicated and therefore expensive, as well as the production of the sealed crossing of the second sealing wall through which the planks and anchor devices connecting the profiles.

The object of the present invention is to avoid these difficulties and a container of Specify initially mentioned type in which a mechanical connection between Ar and the second sealing wall the hull, while on the other hand, the second insulating wall is elastic with the first insulating wall

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is connected without these connections through the the second sealing wall forming metal plates would have to be passed. This object is achieved according to the invention solved in that between the bent edges of the plates of the second sealing wall a fastening wing running parallel to these edges is welded in, on which at intervals Retaining brackets are mounted, and that the retaining brackets have an elastic deformation perpendicular to the surface of the attack second sealing wall permitting connecting element on the first insulating wall.

In a first variant of the container according to the invention, the metal fastening wing, which is used for edge-to-edge welding of the metal plates of the second sealing wall, is the central element of a composite carrier. This central element is clamped over part of its width between two slats made of wood, for example. The mutual sliding is made possible by the fact that the composite carrier is inserted between two adjacent chambers of the second insulating wall, so that the slats of the composite carrier are held in the direction of the container interior by rigid elements on the chambers of the insulating wall.

In a second variant, the sliding of the fastening wing, which by edge- ^ to-edge welding to the Metal plates are attached by a sliding connection made possible by the folded edge of the fastening wing is created, which is located in the

jJO returned to the bent edge of a metal band engages fixed on the skirt of one of the horizontal surfaces of each chamber of the second insulating wall is. A horizontal bar forms a base

2 GS fi K ^/ Ό 1 * 7

for the flaky folds of the sliding connection. It lies between the sliding connection and that Thermal insulation chamber that does not support the metal band. The group consisting of the sliding connection and the slats serving as filling is housed in longitudinal recesses, which are provided along the edges of the horizontal surfaces of each chamber of the second insulating wall. at These two variants consist of the metallic connecting wing, on both sides of which the metal plates the second sealing wall are welded, preferably from a strip material made of a steel with high Nickel content, preferably from Invar.

In a preferred embodiment of the first variant consist of the mounting wings of each compound The carrier's clamping slats are made of wooden slats that are cut into pieces of equal length. The pieces the top and bottom bars are exactly on top of each other, and two successive sections of wood are separated by a space, inside which the assembled one Carrier is reduced to its mounting wing. .

The fastening elements of the chambers of the second insulating wall, on which the battens of each composite beam Attached are tenons running along one edge of each parallelepipedal right-angled insulating material chamber are attached. The slats of the composite beam are fixed to the central one by folding Fastening wings of the carrier connected.

In a preferred embodiment of the second variant contain the heat insulating chambers of the second insulating wall inside along the horizontal edge on which the curved one forming part of the sliding mount

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Tape is attached to a reinforcement pin, which may be consists of several elements distributed side by side over the entire length of the chamber. The fastening of the bent, forming one of the parts of the sliding connection of the second insulating wall The tape on the thermal insulation chamber is carried out by means of screws that pass through the thermal insulation chamber and penetrate the reinforcement pegs located inside the chamber. Each thermal insulation chamber of the second insulating wall has horizontal surfaces that are perpendicular to the double to the outside of the chamber The hull or the double partition wall of the ship are extended beyond vertical surfaces, each extension near the hull or bulkhead of the ship bears a fastening pin, which is attached to the extension, e.g. by seaming or gluing.

The four fastening pegs near the four heat isos The chambers that adjoin the second insulating wall are in relation to the double hull or the double partition of the ship held by means of a fastener consisting of two angle brackets, one wing each Angle bracket is fastened by means of bolts and nuts to the hull or the partition wall of the ship, while the other two wings are connected to one another by screwing. The edges of each angle bracket, which each run parallel to the edge of the angle are bent over perpendicular to each surface of the angle.

In the second variant of the above embodiment can one advantageously the following additional

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Take precautionary measures: The retaining brackets comprise two wings with the metal one between them on both sides Clamp the fastening wing with which the bent edges of the metal plates of the second sealing wall can be mounted. The assembly of the bracket on This metal wing is done either by welding or by riveting. The one associated with each headband Fastening means consists of a threaded bolt, a nut and a locking washer. The blocking disc is supported by at least one heat insulating chamber of the first insulating wall. The blocking disc is supported in conjunction with each retaining bracket in a recessed area on the edge of a parallelepiped right-angled thermal insulation chamber, with the blocking disc on four recessed areas at the same time supported by thermal insulation chambers that adjoin the first insulating wall.

To implement the elastic connecting element that connects the retaining bracket to the heat insulating chambers The fastening means attached to the first insulating wall can be of several different constructions come into use. In one construction, the elastic connector consists of an elastic deformable metal ring with one area with the retaining bracket and with the opposite area with is connected to the threaded bolt of the corresponding fastening means. In this case it is elastic deformable ring in the plane of the fastening wing, on which it is attached or in a plane perpendicular to it. In a second construction, there is the elastic Connecting element between the retaining bracket and the one attached to the heat insulating chambers of the first insulating wall Fastening means made up of two metal plates that

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are welded at their ends. There is a metal plate in its central zone with the mounting bracket and the other is welded to the threaded bolt of the corresponding fastening means. The level of contact of the two metal plates is parallel to the planes of the two sealing walls. With a third construction the elastic connecting element consists of a leaf spring in U-shape, one leg of which with the Brackets is connected, and the other leg carries a threaded pin that the attachment to the. Allows thermal insulation chambers of the first insulating wall. The U-shaped springs are attached to the one with the second The retaining brackets connected to the sealing wall are preferably fastened either by means of rivets or screws, which are inserted through the retaining bracket and one end of the leg 'of the U-spring. The screws are locked by a steel wire in the shape of a pin.

The container according to the invention offers compared to the known containers have considerable advantages. The mechanical connection between the supporting double hull the ship and the heat-insulating and, sealing walls ensuring fastening parts are simplified. It is no longer necessary to provide horizontal planks and vertical profiles that were previously required.

These simplifications result in a considerable saving in labor for assembling the various elements of an integrated container intended for the transport of liquefied gas. In addition, it should be noted that the connection realized with the invention is a very important one Reduction of thermal bridges occurs. Such thermal bridges are caused by those mechanical parts

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causes, which connect the elements of the container with the load-bearing double hull of the ship. In the end the portfall of the horizontal planks and the vertical profiles brings a considerable weight loss

p reduction of fasteners per m of internal surface of the container with it. In addition, the container according to the invention, like that of the in the French patent 1 4158 J530 described is, on the one hand, sliding connections between the sealing walls and the insulating walls below and on the other hand a gas permeability of the heat insulating chambers and finally free spaces between the chambers that allow free gas circulation. The described second variant of the container according to the invention offers three advantages over the first variant. First is the section of the interception zones that are at each end of the chambers of the second insulating wall are provided enlarged. This allows the on the fastenings acting forces are increased. Second, it is due to the storage of the sliding connection inside the Longitudinal recesses through which the fastening wing can be inserted into Height of the sealing levels of the chambers of the second insulating wall is maintained, any space between the Avoid horizontal surfaces of the thermal insulation chambers, which leads to the use of additional insulating material saved. Thirdly, the fastening takes place, with two angle brackets on each connection of the four adjacent chambers of the second insulating wall can be used, by means of two on the fuselage or bolt attached to the wall of the ship. This ensures safety in the event of a breakage the bolt increases. It is also possible to compensate for play during installation.

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A ship for the transport of liquefied gases and especially for the transport of liquid natural gas . with a high methane content is characterized according to the invention in that there is at least one container of the type described above.

The invention is explained in more detail below with reference to the figures on the basis of several exemplary embodiments explained.

In the drawing shows:

1 shows a perspective view of an open container according to the first variant,

Fig. 2 is a perspective view of the attachment of the bracket in the container according to FIG. 1 in an enlarged view using a ring as an elastic connecting element,

Fig. 3 details a section from which the attachment the second insulation wall is recognizable on the carrier hull of the ship and between two resting on top of each other Chambers of the second insulating wall the composite beam is inserted,

4 shows a detail from FIG. 1 on an enlarged scale In section, from which the assembly of the retaining bracket on the central mounting wing and the bent edges is recognizable

5 shows a further embodiment in a perspective illustration the attachment of the retaining bracket on the assembled carrier according to FIG. 1, in which the elastic connecting element in the plane of the

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Fastening wing is arranged elastic ring,

6 shows a variant in a perspective representation of the elastic connecting element, which here consists of two metal plates lying next to one another, which are welded at their ends,

Fig. 7 is a detailed section from which the attachment of the bent edges of the plates forming the first sealing wall can be seen. The assembly is carried out by spot welding with the metal fastening wing, which is attached to the chambers of the first sealing wall by means of a sliding connection. These The arrangement in the first variant according to FIG. 1 is the same as in the second variant according to FIG. 8.

8 in perspective a second variant of the container according to the invention in the opened state,

9 shows the attachment in a perspective view of the metallic fastening wing on the second insulating wall according to FIG. 8, the heat insulating chambers of the second insulating wall are shown in section and empty,

Fig. 10 is a perspective view on an enlarged scale, the attachment of a heat insulating chamber of second insulating wall according to FIG. 8 on the supporting hull of the ship,

11 shows the sliding connection of FIG. 9 in section,

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Pig. 12 in section the attachment according to FIG. 10,

Fig. 13 in section, the U-shaped spring, which in the Embodiment according to FIG. 8, the connection of the second insulating wall to the heat insulating chambers of the first insulating wall made possible by the mounting wings, and

14 shows a view from the direction XIV-XIV of FIG.

In the following, reference is made to the drawings, initially in particular to FIGS. 1 to 5 and FIG. In the first variant shown here 1 denotes the double load-bearing hull of the ship, on which the screw bolts 2 by Sehweißung are attached. The screw bolts protrude vertically inwards from the ship's wall. They are in vertical Rows welded, their spacing within a row the height of a parallelepiped right-angled Chamber 3 corresponds, which is intended, together with other similar chambers, the second insulating wall to build. The distance between two adjacent Rows of bolts 2 determines the length of the heat insulating chambers 3, which are arranged so that on a bolt 2 is present at each corner. The heat insulating chambers 3 are made of wood, for example. They contain a heat insulating product such as "Perlite" (trade name).

That surface of the thermal insulation chambers 3 which is supported on the fuselage 1 is denoted by jja. Jb is the opposite face. Each chamber 3 is perpendicular to the surface Ja. protruding strips 4, which adjoin the vertical lateral surfaces of the chamber

^ O lie and are attached. In the connection area of

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four adjacent chambers 3 there is a gap allowing the passage of the bolt 2. The bolt 2 is threaded on its end and carries a nut 2a which is a square locking washer 5 supports.

In this way, each blocking disk 5 simultaneously holds four edges of four adjacent chambers. On the surfaces Jc and Jd in the areas adjoining the surface 3d, strips 6 are provided which extend over the entire length of the chambers 3. The chambers 3 are stacked one on top of the other along the fuselage 1 between the rows of bolts 2. They are fixed with respect to the fuselage 1 by the blocking disks acting on the strips k of four chambers arranged next to one another. The spaces between the chambers 3 are filled with rock wool in order to improve the thermal insulation.

Between two horizontal rows of chambers 3 there is a composite carrier 7 · ^E r consists of a central fastening wing 8 which is clamped between two wooden panels 9 over part of its width. The wooden slats 9 run along one edge of the fastening wing 8 and are attached there. They are cut into pieces, each about 20 cm apart. Each of the pieces has a length of about 1 m, and the pieces of the upper and lower slats lie exactly one above the other, so that the assembled support 7 includes areas in which there is no slat 9. The central fastening wing consists of a low-strength Invar tape. In this way you can store the assembled beams 7 by rolling them up, since the loading

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rich, in which there is no slat 9, allow sufficient bending for such curling. The composite beams 7 are between the surfaces 5c and 3d of two superposed Arranged chambers 3, the slats 9 facing the fuselage 1 with respect to the slats 6. The fastening wing 8 also runs between the two slats 6 of two chambers 3 arranged one above the other. The slats 6 therefore hold the assembled carrier 7 in relation to one facing the inside of the container Strength back.

After the second insulating wall has been produced by stacking chambers 3 on top of one another, metal plates 10 with bent edges are placed on the surfaces yo of the chambers 3, the distance between the two edges 11 of a metal plate 10 being equal to the distance between the two adjacent fastening wings 8 of the second Isolation wall separates from each other.

The bent-over edges 11 of two arranged one above the other are joined by automatic welding Panels 10, between the edges 11 of the fastening wing 8 of the composite beam 7 is included and all three metal sheets are connected to one another by the weld. Between two vertical rows of pins 2 are located on the edge of the fastening wing that protrudes towards the inside of the container 8 a recess of essentially trapezoidal shape. This extends roughly up to the bent edges 11 of the metal plates 10.

In each recess 12 there is a holding bracket which protrudes perpendicularly to the fuselage 1 and to the second Diohtungswand 10

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13 arranged in the middle area of the chambers 3. The retaining brackets 13 are located between the two Wings in which the whole of the fastening wing 8 and the bent edges welded to it 11 complex is inserted. The bracket 13 is either welded or riveted to this Group attached. The last-mentioned solution is shown in Fig. 4, where 14 denotes the connecting rivet is. Each retaining bracket 13 is via an elastic device, which will be explained in detail, connected to a threaded bolt 15 on which a nut 15a sits with an internal thread. Between the off A bracket 13, the screw bolt 15 and the associated washer 16 groups formed wood chambers 17 are arranged. Each chamber is provided in such a way that a group of parts 13 * 15 and 16 is located. The chambers 17 are completely identical to the chambers 3 which form the second insulating wall. You put the first insulating wall and rest on each other, have self-supporting wooden walls and are with an insulating material filled, for example with "Perlite" (trade name). The chambers 17 have recesses at each corner, so that the group of parts 13, 15 * 16 can be attached can. Here, a support surface is provided so that the blocking disk 16 is about a quarter can attack their disc surface. Each blocking disk 16 is therefore suitable for the attachment of four adjacent corners that belong to four chambers of the first insulating wall.

The area of a chamber 17 which is the second sealing wall formed from the plates 10 is designated by 17a opposite. This surface is opposite the surface 17b. The upper horizontal surface of the chambers

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is designated with 17c and the lower horizontal surface with 17b. In area 17d of each chamber recesses 18 are provided along the zones adjoining the surfaces 17, into which a hook tape 19 can be used, which is bent around itself and in that part of the surface 17c on the Chamber 17 is attached, which lies in the region of the recess 18. The bands 19 are with the surface 17c attached by brackets. In the bent band 19 engages a further bent band 21, whose rear part is anchored in the fold of the band 19, as Fig. 7 shows. The band 21 jumps in the direction of Inside the container along the horizontal connecting plane of the chambers 17 before.

The first sealing wall is on the surfaces 17b of the chambers 17 attached. It consists of metal plates 22 with bent edges 2j5 · The width of the plate is substantially equal to the height of the chambers 17, so that the bent edges 23 of the plates §2 on both sides of the strip 21 protruding at the point of the horizontal connecting planes of the chambers 17. Production takes place by automatic welding of the bent-over edges 23 and the central band 21 an uninterrupted first sealing wall on the surfaces 17b of the first thermal insulating wall. The first sealing wall is mechanically fastened to the first insulating wall by means of the bands 21 and 18 and sliding through the clips 20. The metal plates 22 consist of Invar sheets.

In this way you can make an integrated container that is placed inside a ship is, with all elements of the container on the

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smooth inner wall of the ship are anchored. It goes without saying that the structure of the supporting structure of the ship between the outer wall and the inner wall of the double hull 1 is enclosed. The mechanical The chambers 3 are fastened to the fuselage 1 by means of the bolts 2, which are provided with washers 5 and nuts 2a are, the discs 5 being supported on the slats 4. The second sealing wall is with the mounting wings 8 of the composite beam 7 attached to the second insulating wall. The bent over Edges 11 of the plates 10 are welded to the fastening wings. The attachment of the first Insulating wall forming chambers 17 on the elements of the second insulating walls is carried out by the slats 9 * the are blocked by the slats 6, by the fastening wings 8 attached to the slats 9, by the attached to the fastening wings 8 retaining brackets 19 and finally by the fastened to the retaining brackets Washers 16. The mounting of the panels 22 forming the first sealing wall on / over the first insulating wall takes place slidingly with the help of the bands 21 and and the brackets 20. All parts that make up the composed of integrated containers, are therefore completely defined in relation to the ship's hull 1.

It should also be noted that because of the strong temperature gradient, which is noticeable in all parts of the container when exposed to cold, and because of the Fatigue when loading the container is absolutely necessary, some movement between to allow the elements of the first and second walls while not being cohesive to endanger. For this purpose, elastic connecting pieces are placed between the holding brackets 13 and the rods 15.

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elements one. In the pig. 2, 5 and 6 are three different types of such elastic connectors shown that can be used.

In FIG. 2, the retaining bracket is provided with a bore 2k in the area opposite the fastening with the edges 11 of the plates 10, through which a ring 25 lying in a vertical plane passes. The ring is connected to the rod 15 by welding.

According to FIG. 5, the retaining bracket consists of a bent band. The arch of the fold bears the reference numeral 1 ^ a and serves to receive a horizontal ring 26 which passes through a hole 27 at the end 15b of the rod 15. In both embodiments it can be seen that If the container is exposed to cold and stressed, the rings 25 or 26 could be deformed, without the connection between the first and second walls being destroyed.

Fig. 6 shows a third variant of the elastic connecting element. The bracket I3 is welded to a metal lamella 28 on which a second metal lamella 29 rests. This is welded to the end of the rod I5. The two lamellae 28 and 29 are welded together at their ends. The welding point is marked with JO . When a tensile force is exerted on the rod 15, for example when the container is being cooled, the lamellae 28 and 29 curve with opposite curvatures and form a spring. This embodiment has the same advantages as that in which rings 25 and 26 are present.

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It should be noted that in the device according to the first variant of the invention, all spaces between the Chambers 17 or between chambers 3 are filled with porous insulating material such as rock wool, to ensure free gas circulation.

The second variant of the invention is shown in FIGS. 8 to IJ. Here, the load-bearing double hull of the ship is designated by 31 , to which the screw bolts J52 are attached, protruding at right angles.

The bolts 32 are welded in vertical rows. They are distributed in groups of two, the distance between the centers of two consecutive groups within a row corresponding to the height of a rectangular parallelepiped chamber 33 which forms part of the second insulating wall. The distance between two adjacent rows of bolts 32 determines the length of the chambers 33, which are arranged so that a group of two bolts 32 is present at each corner. The chambers 33 are made of wood, for example. They contain a heat-insulating compound, eg "Perlite" (trade name). The surface of the chambers 33 which is supported against the body 31 is designated with 33 ^a and the opposite surface with 33 b. 33c and 33 ^ are the horizontal surfaces of the chambers 33. These extend on the narrow sides of the chambers 33 beyond the vertical surfaces perpendicular to the body 3I. The extensions are labeled 34. In the vicinity of the hull 3I and towards the central zone of each chamber bears each extension 3 ^ ei ⁿ to it, which was fastened fastening piece 35, which has substantially the same width as the extension 3 ^ ·

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The chambers 33 are along the trunk 31 between the rows of bolts j52 stacked one on top of the other. They are attached to the fuselage by means of two brackets 36 in an angular shape, Each tab 36 has two vertical surfaces, one of which 36a runs parallel to the fuselage 3I, while the surface 36b is perpendicular to this. The the Edge 36c are opposite edges of the surfaces 36a, 36b bent at right angles. The bent edges of these surfaces 36a and 36b are designated 37a and 37b, respectively.

ψ 10 The length of the surface 36b is slightly less than the length of the fastening piece 35 · Each surface 36 is fastened to the hull 3I of the ship by means of a screw bolt 32 and a nut. The two tabs 36 of a fastening point correspond to the two screw bolts of one and the same group within a vertical row. The two brackets 36 are connected to one another by a vertical screw bolt 38. The bent-over portions 37b of two brackets 36 on a fixing point at the same time block the ends of four fastening pieces 35> belonging to four adjacent IsοHerkammern 33 of the second insulating wall. The surfaces 33 ° ^and 33d of two insulating chambers are arranged one above the other with practically no play, with one being supported against the other. The vertical surfaces, on the other hand, have a distance perpendicular to the fuselage 31 which is slightly greater than twice the width of an extension 3 ^ ·

On the surfaces 33c and 33d of each insulating chamber of the second insulating wall, in addition to the surface 33b, is one Longitudinal recess 38 attached. At the point of the recess 38 is a reinforcing pin in the interior of the chamber 33 39 is provided, which is attached in several parts over the entire length of the chamber to the passage to leave open for the internal transverse walls 4o of the chambers.

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The reinforcing pins 39 are fixed in the chambers 33 by tacking or gluing. The two longitudinal recesses 38 of the two heat insulating chambers 33 are mounted opposite one another and border one Space off, iryoem one hand one from a strip 41 and the metal band 42 existing sliding connection and on the other hand a shim 43 is arranged. The strip 41 is provided with screws 44 which pass through the surface 33d of the chamber and into the reinforcement pegs 39, attached to the chamber 33.

The edge of the strip 41 facing the outside of the chamber 33 is bent over by 180 °. The metallic fastening wing 42 is fastened on the bend of the strip 41 with a corresponding bend going through 180 °. The two interlocking bends form a sliding connection for attaching the fastening wing 42 to the heat insulating chambers 33 of the second insulating wall. In order to be able to subject the connecting wing 42 to a strong tensile force perpendicular to the fuselage 3I, it must be avoided that the two bends of the sliding connection can open. For this purpose, the washer plate 42 is provided between the sliding connection and the bottom of the recess 38 which is made in the chamber 33 next to that recess in which the strip 41 was attached. Thus we see that it is possible to mount the Befestlgungsflügel 42 to the chambers of the second insulating wall, without which are opposed between the faces 33d and 33c> each other, any empty space must be provided.

If you have formed 33 second insulating wall by stacking the chambers, so you bring on the

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Areas 33b of the chambers 33 are smooth metal plates 45 with bent edges 46 on. The distance between the two bent edges 46 of a metal plate 45 is the same the distance between the two successive fastening wings 42 of the second heat insulating wall separates. The bent edges 46 of the superimposed ones are fastened by automatic welding Plates 45, between the edges 46 of the fastening wing 42 is connected and combined by welding all three metal sheets in a welding zone 46a will.

Between two successive vertical rows of bolts 32 is on the mounting wings 42 a bracket 47 is provided. This is on the Attachment wings 42 attached, being in the welding zone 47a an automatic welding takes place. The bracket 47 can consist of two on either side of the wing 42 arranged sheets exist, both in the welding zone 47a and in a parallel welding zone 47b, which runs along the longitudinal edge opposite the two metal sheets connected to one another, welded to one another . are. Each bracket is provided by means of a U-shaped bent spring with a rod 49, the end of which is a Has thread. A nut ^ 9a, which supports a blocking disk 50, sits on the thread. Between by a bracket 47, its rod 59 and. its disc 50 groups formed are wooden chambers 51 arranged in such a way that there is a group of parts 47, 49, 50 at each corner of the chamber is located. The chambers 51 are constructed in the same way as the chambers 33 forming the second insulating wall the first insulating wall, however, they have no side extensions that correspond to the extensions 3 ^

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correspond, and on the other hand, the longitudinal recesses, which are provided at the second insulating wall on the upper and lower surfaces of each chamber, only present here on the lower surfaces. This last-mentioned difference becomes clear in FIG. 8, where the connection zone of two chambers 51 is shown in section is.

The chambers 51 are with the chambers 17 of the first variant identical. They are assembled as shown in FIG. 7, the associated elements being the same and only the reference numbers are modified. As already described with the first variant, made possible there is a sliding connection with folds lying on top of one another in the form of scales in the connection levels to attach a metal band 55, on both sides of which the metal plates 56 with bent edges 57 be welded. The metal plates 56 like the plates 45 consist of Invar sheets. Because of the further details it is sufficient to refer to the construction related to the first insulating wall and the first sealing wall of the first variant was described.

The inverted U-spring 48 consists of a plate of cryogenic metal with a high elastic limit, which is formed in a U-shape. One end of this plate is attached to a plate 48 which acts as a support is arranged both on the bent edges 46 and on the bracket 47. The plate 48a is on the bracket 47 fastened with screws 48b which pass through plate 48a and bracket 47 and through respectively a stainless steel cotter pin 48 may be held in place. The spring 48 can be arranged at right angles to the body 51

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be malleable. This causes the first insulating wall to vibrate relative to the second insulating wall in this direction. The execution and installation of such an elastic deformation element is particularly easy and cheap.

It can be seen that, in the manner described, a container which is arranged inside a ship and is integrated with the ship can be produced, the parts of which are all attached to the smooth inner wall of the ship. It goes without saying that the entire supporting structure of the ship is enclosed between the outer skin and the inner skin of the double hull Jl. The mechanical fastening of the chambers 32 to the fuselage J1 takes place by means of the screw bolts 32 and the fastening straps 36, which are supported on the fastening pins 35. As a result of the elastic deformation of the brackets 36 in their angular shape, this arrangement makes it possible to compensate for the respective installation play during the assembly of the chambers 35. In addition, sufficient strength can be guaranteed in the event of one or the other screw bolt 32 breaking. This forms an additional security. The second sealing wall is fastened to the second insulating wall with the fastening wings 42. This method of fastening offers two essential advantages: firstly, there is no empty space between the horizontally superimposed surfaces of two chambers 33j and secondly, the sliding connection 41, 42 can be subjected to strong forces, which because of the washer plate 43, which limits the opening of the sliding connection to a maximum of one millimeter to be transferred to the mounting wing. The fastening of the chamber 51 forming the first insulating wall on the parts of the second insulating wall takes place by means of the fastening wing 42 made of metal, the retaining bracket 4 ?, the

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Spring 48, the bolts 49 and the locking washers 50. By interposing the spring 48 is due to its elasticity a certain movement between the parts of the first and second walls.

2098 H / 01 1 7

Claims (1)

- 2β - Expectations 1./Tight, heat-insulated container, which is connected to the ■ • ag structure of a ship is integrated and consists of two sealing walls and two thermal insulating walls, of which the first sealing wall forms the inner wall of the container, to which the first insulating wall, the second sealing wall and the second insulating wall adjoin to the outside, with the second insulating wall the ship's wall is attached and the insulating walls consist of chambers on which the sealing walls rest in the form of plates with edges bent towards the inside of the container and are slidingly attached to the insulating walls, characterized in that between the bent edges (11) of the plates (10) the second sealing wall (3) is welded in a fastening wing (8) running parallel to these edges (11), on which holding brackets (13) are mounted at intervals, and that the holding brackets (13) have an elastic "deformation perpendicular to the surface the second sealing wall (3) permitting connecting element (25) on the first insulating wall (17) ang tires. 2. Container according to claim 1, characterized in that the metal fastening wing (8) is welded flat to the bent edges (11) of the plates (10) and forms the central element of a composite carrier that the fastening wing (8) on its the edge facing the ship's wall (1) carries two slats (9) which engage behind two further slats (6) attached to the heat-insulating canisters (3), between which the fastening wing (8) protrudes. 2Ü9Ö 14/01 17 5. A container according to claim 1 or 2, characterized in that the metal, for welding the edges (25) of the plates (22) serving fastening wing (21) is bent at one edge by about l8o ° and with this bend in a Also bent over, attached to the edge of the horizontal surface of a heat insulating chamber engages that a horizontal slat (45) serves as a base for the interlocking bends and is inserted between this and the heat insulating chambers, and that the sliding connection thus formed is inserted into a longitudinal recess (18) which are provided on the edge of the horizontal surfaces of each heat insulating chamber of the second insulating wall. 4. Container according to one of claims 1 to 5 *, characterized in that the fastening wing (8,21,42), on which the bent edges of the metal plates are welded on both sides, consists of a steel strip made of steel with a high nickel content, preferably of Invar . 5. A container according to claim 2, characterized in that the laths (6) retaining the fastening wing (8) consist of wood sections jev; eils of equal lengths, which are stacked in pairs and that two successive laths are separated by a space in which the assembled carrier is reduced to its mounting wing (8). 6. A container according to any one of claims 2 or 5 *, characterized gekennzeiohnet that on the second insulation wall (5) attached, the slats (9) retaining elements of slats (6) are made along the longitudinal edges 2Q98U / O117 2U4413 attached to each rectangular parallelepiped thermal insulation chamber. 7. Container according to one of the preceding claims, characterized in that the slats (9) of the composite carrier are fixedly connected to the fastening wing (8) by tacking. 8. A container according to claim 3, characterized in that the heat insulating chambers of the second insulating wall have reinforcing pieces (39) in their interior along the horizontal edge to which the bent band (41) forming part of the sliding connection is fastened on the outside extend in the longitudinal direction of the chambers. 9. Container according to claim 8, characterized in that the bent band (41) forming part of the sliding connection is fastened to the heat insulating chamber by screws (44) which penetrate through the wall (JId) into the reinforcing piece (39). 10. Container according to one of the preceding claims, characterized in that each heat insulating chamber of the second insulating wall has horizontal surfaces (34) which are extended beyond the vertical chamber walls running perpendicular to the ship's wall (Jl), and that each extension is adjacent to the ship's wall ( Jl) has a fastening piece (35) which is mounted, for example, by tacking or gluing. 11. Container according to claim 10 « characterized in that four fastening pieces (35) of the second insulating wall with two angle brackets (36) are mounted, and that in each case one leg (36a) of each angle bracket by means 2098U / 0117 Threaded screw bolt (32) is attached to the ship's wall and the other legs (36b) by screwing are interconnected. 12. A container according to claim 11, characterized in that the edges of each angle bracket (36) are bent parallel to the edge of the angle bracket perpendicular to the surface (36b). 13. Container according to one of claims 1 to 12, characterized in that the retaining bracket (I3) have two fork-like the fastening wing (8) with the edges (11) welded to it, overlapping surfaces and are connected by welding or riveting to the fastening wing . 14. Container according to one of claims 1 to 13, characterized in that the fastening elements connected to each of the retaining brackets (I3) consist of threaded rods (I5) which, by means of blocking disks (ΐβ) from the inside of the container, against the first Press the insulating wall (17). Container according to claim 14, characterized in that the blocking disk (16) is supported on the first insulating wall in a retracted area provided at the edges of the rectangular thermal insulation chambers, and that each blocking disk engages simultaneously on four edges of adjacent thermal insulation chambers. 16. Container according to one of the preceding claims, characterized in that the elastic connecting element consists of an elastic metal ring (26), 2Q98U / 0117 eui dem on the one hand over the retaining bracket (13) of the fastening wing (8) and on the other hand, the locking disc (16) engages via a tie rod (15). 17. A container according to claim l6, characterized in that the metal ring (26) is arranged in the plane of the fastening ice (8) or in a plane perpendicular thereto. 18. Container according to one of claims 1 to 15 *, characterized in that the elastic connecting element consists of two metal lamellae (28,29) welded together at their ends, one of which in its central region with the retaining bracket (I3) and the other in its central region is connected to the tie rod (15), and that the plane of contact of the two metal lamellae (28,29) runs parallel to the plane of the first and second sealing walls. 19. Container according to one of claims 1 to I5, characterized in that the elastic connecting element consists of a U-shaped spring (48), one leg of which is connected to the retaining bracket and the other leg of which is connected to the heat insulating chambers of the first insulating wall Threaded pin (49) carries. 20. A container according to claim I9, characterized in that the fastening of the U-shaped spring (48) on the holding brackets (47) by screws (48b) is carried out by a shoulder (48a) of the holding bracket (48) and one end of the Fixing wings (47b) extend therethrough and; are locked by a split pin (48c). 2098U / Q117 2U4413 21. A container according to claim I9, characterized in that the U-shaped spring is attached to the retaining bracket connected to the second sealing wall by rivets. 209814/0117 ORIGINAL INSPECTED 3-L Blank page