KR102022978B1 - Sealed and insulating vessel equipped with a restraining device - Google Patents

Abstract

In the hermetic insulation container provided in the support structure for receiving a fluid,
The wall of the container includes a sealing membrane and an insulating wall between the sealing membrane and the support structure,
The insulating wall includes a restraining device between the two insulating members for the purpose of maintaining the restraining device with respect to the supporting structure and the insulated member of the juxtaposed parallelepiped, the restraining device comprising:
Spacer member 28 attached to the support structure,
A support member 11 spaced apart from the support structure by a predetermined interval;
An elongated holding member 14 provided in the longitudinal direction of the insulating member and movably guided with respect to the spacer member so as to be closer to the wall;
And an elastic member 21 seated between the support member and the holding member and held in a compressed state such that the holding member is provided on the supporting surfaces of the two heat insulating members with respect to the length thereof.

Description

SEALLED AND INSULATING VESSEL EQUIPPED WITH A RESTRAINING DEVICE}

FIELD OF THE INVENTION The present invention relates to the field of manufacturing closed hermetic containers, and more particularly, to containers intended to contain cold and hot liquids, and more particularly to containers for storing or transporting LNG.

Sealed insulation containers provided in the hull of ships carrying liquefied natural gas are already familiar products. FR2798902 discloses such a container. This container comprises two continuous sealing walls, one of which is a first wall in contact with the product contained in the container, and the other is a second wall provided between the first wall and the support structure. The four sealing walls are alternately provided to the first insulating wall and the second insulating wall. The first heat insulating wall and the second heat insulating wall are composed of a plurality of compartments substantially in the form of a parallelepiped. Each compartment includes a plywood lower panel and an upper panel. The stationary part retains the compartment as well as the sealing wall with respect to the supporting structure.

According to various embodiments, the container may include one or more of the following features.

According to one embodiment, the thermal insulation members each comprise a lower panel 3 on the outer surface closest to the support structure, wherein the lower panel of the thermal insulation member is provided along two longitudinal edges of the thermal insulation member. It includes two regions protruding in the direction of the restraint device, each of the protruding regions 24 of the lower panel includes the support surface on which the holding member is provided.

According to one embodiment, the support member extends and is provided along the longitudinal direction of the heat insulation member of the two rows, wherein the support member and the holding member each includes a profile body including an intermediate surface and two elongated sides. The side surface is provided on one side of the intermediate surface with respect to the length of the intermediate surface, perpendicular to the support structure, the side surface of the support member is movable relative to the spacer member to guide the holding member Interact with the aspects of.

According to one embodiment, the side of the support member and the side of the holding member includes a stop device provided to limit the movement of the holding member relative to the support member between both ends of the movement path.

According to one embodiment, the elastic member is provided with a spring disposed along a predetermined interval along the longitudinal direction of the two rows of insulating members between the support member and the holding member.

According to one embodiment, the restraining device includes a second support member held by a second spacer member spaced apart from the support structure by a predetermined distance, and the holding member is connected to the two spacer members by two support members. Are movably guided relative to each other.

According to one embodiment, the spacer is attached to the support wall by a stud and a nut, the studs are fixed to the support wall and the nut is screwed to the stud to tighten the spacer against the support wall. do.

According to one embodiment, the spacer is a cylindrical spacer traversing the stud on the axis of the spacer, the nut is provided on the spacer along the axial direction of the spacer.

According to one embodiment, the spacer is a spacer across the stud. Such spacers may be screwed onto the stud with respect to the support wall or held on the stud by other means, the stud being secured to the fraud support structure.

According to one embodiment, the spacer includes a neck portion provided on the outer circumferential surface, a circlip mounted on the neck portion and a washer provided on the circlip, and the support member is provided on the washer.

According to one embodiment, the spacer includes a region having a hexagonal cross section and a deformation portion provided to fasten the spacer to the stud.

According to one embodiment, the spacer comprises a flange provided on the wedge, the wedge is provided on the support structure and the wedge crosses the stud.

According to one embodiment, the restraining device has a height lower than the thickness of the heat insulating member, and the heat insulating wall of the container is disposed between the two heat insulating members to fill the gap between the restraining device and the upper surface of the heat insulating member. It further comprises an intermediate insulating member is provided.

According to one embodiment, the length of the stretched support member is approximately 250 mm.

These vessels may form part of ground storage facilities, such as those storing natural liquefied gas, or floating structures on the shore or in deep water, in particular LNG carriers, floating gas storage / regasification facilities (FSRUs), floating crude oil production / It may be installed in a storage / unloading facility (FPSO).

According to one embodiment, a vessel for the transport of cold liquid product comprises a double hull and the vessel provided on the double hull.

According to one embodiment, the present invention proposes a loading and unloading procedure of a ship, wherein the cold liquid product is transported between the floating storage facility or the above-ground storage facility and the vessel of the vessel through an insulated pipe.

According to one embodiment, the present invention proposes a transport system for a cold liquid product, wherein the system is provided with an insulating pipe provided to connect a vessel installed in the hull of the vessel to the vessel, a floating storage facility or a ground storage facility. A pump for flowing cold liquid product between the floating storage facility or the above-ground storage facility and the vessel of the vessel through an insulated pipe.

The basic idea of the present invention is that the container is held on the wall of the support structure by a restraining device that elastically pressurizes the heat insulating member on the wall of the container and absorbs the deformation of the support structure by using a compressive elastic member. To provide a wall, the force of the elastic member is predetermined in consideration of the predetermined deformation by extension in the longitudinal direction.

Aspects of the present invention are based on the concept of distributing the holding force using a restraining device that applies a force to the sagging support surface of the thermal insulation member to distribute the stress.

Aspects of the present invention are based on the idea of providing a container that can be implemented by a short and convenient installation time by providing a restraining device provided to be assembled and installed in advance.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is more readily understood by the following description of various embodiments of the invention which are presented in a non-limiting manner with reference to the accompanying drawings, and the other details, details, features and advantages of the invention become clearer.

1 is a partial perspective view and a cross-sectional view of a wall of a hermetic insulation container including a restraining device according to an embodiment of the present invention,
FIG. 2 is a partial perspective view of the containment device for the container wall shown in FIG. 1, FIG.
3 is a cross-sectional view according to III-III for the restraining device shown in FIG.
4 is a cross-sectional view of the vessel wall according to IV-IV to show a restraint device positioned between two insulation members, FIG.
5 is a partial perspective view of a modification of the restraint device,
6 is a perspective view according to VI-VI for the restraining device shown in FIG.
FIG. 7 is a partial perspective view of a means for securing the restraint of the container wall shown in FIG. 1, FIG.
8 is a view according to another partial perspective view of a wall of a hermetic insulated container including a restraining device in accordance with another embodiment,
9 is a view showing a terminal for loading and unloading the LNG carrier and the vessel,
10 is a partial perspective view and a sectional view of a hermetic sealed container including a restraining device according to another embodiment of the present invention;
FIG. 11 is an exploded perspective view of the restraining device of the vessel wall shown in FIG. 10;
12 and 13 are cross-sectional views showing two different states before and after installing the restraining device with respect to the restraining device shown in FIG.

Referring to FIG. 1, there is shown a support structure 1 of a vessel formed by a double hull inner wall of a vessel.

By convention, "upper" indicates a case closer to the interior of the vessel, and "bottom" indicates a case closer to the support structure 1, and the direction of the vessel wall relative to the earth's gravity field. Is irrelevant.

The container includes a second insulating wall held on the support structure 1. A second sealing wall is provided on the second heat insulating wall, a first heat insulating wall is provided on the second sealing wall, and a first sealing wall is provided on the first heat insulating wall. The second sealing wall, the first heat insulating wall and the first sealing wall are not shown.

The second thermal insulation wall is formed by a plurality of thermal insulation members of rectangular parallelepiped compartments 2 arranged side by side in a plurality of rows in a manner to substantially cover the inner surface of the support structure 1. Each insulating compartment comprises a lower panel 3 and an upper panel 4, wherein an insulating foam 5 is located between the lower panel 3 and the upper panel 4. The lower panel 3 of the compartment 2 is seated on the sealant bead 6 as well as the square wedge 7 provided in the support structure 1. The sealant bead 6 forms a line parallel to the longitudinal direction of the thermal insulation compartment 2 and is supported by kraft paper (not shown) to prevent the resin inside from adhering to the support structure 1. It is provided on (1). The sealant beads 6 reduce the force exerted on the compartment 2 due to this deformation when dynamic deformation occurs in the support structure 1. The purpose of the sealant beads 6 is to compensate for the difference between the theoretical surface expected for the container wall and the incomplete surface of the support structure 1 due to manufacturing tolerances. The upper panel 4 further includes two grooves 50, and the grooves 50 having an inverted T-shaped cross section accommodate a welding stub (not shown) having a rectangular shape. The compartment 2 of the second insulating wall is supported by a restraint device 9 fixed to the wall 1 in a space formed by a gap between two rows of insulating compartments 2. Is maintained against. The restraining device 9 has an extended shape and is provided in the longitudinal direction along the side that defines the length of the compartment 2.

The two rows of compartments 2 are spaced apart from one another so that the restraint device 9 can be positioned therebetween. In contrast, within one row, the compartments 2 can be juxtaposed in close proximity to one another in order to maximize insulation.

The second sealing wall (not shown) is formed of a number of streaks with protruding edges in a manner already familiar to those skilled in the art. The protruding edge of each strike is welded to the welding stub.

The first heat insulation wall (not shown) is provided on the second sealing wall. The heat insulation wall may be formed in various ways, for example, a compartment of a structure similar to the compartment 2 of the second heat insulation wall. In one embodiment, each first insulating compartment is a rectangular parallelepiped, which is lower than the second insulating wall 2 and comprises a lower panel and an upper panel. The lower panel of the first insulating compartment includes two longitudinal grooves to accommodate the protruding edges of the welding stub and the second sealing wall. Similarly, the top panel includes two grooves having an inverted T-shaped cross section to receive the welding stub, and the protruding edge of the strike of the first sealing wall is welded to the welding stub.

The compartment of the first insulating wall may be retained on the second insulating wall by various means familiar to those skilled in the art. In one example, the means described in FR2887010 can be used on the second sealing wall. Alternatively, it is also possible to implement a container comprising only a single sealing wall and a single insulating wall.

Hereinafter, the restraining device 9 for maintaining the second insulating wall on the support structure 1 will be described in more detail with reference to FIGS. 2 to 5. As described above, the second heat insulating wall is formed of a plurality of compartments 2 provided with lines parallel to each other. As shown in FIGS. 1 and 7, several rows of studs 22 spaced apart from each other at regular intervals are welded to the support structure 1. Then, the rows of compartments 2 are located between the rows of studs 22. The restraining device 9 is fixed to the support structure 1 by a single row of studs 22. The restraint device 9 comprises an upper profile 11 which is aligned and juxtaposed along a single row of studs 10. The upper profile 11 comprises an intermediate plate 15 and two side plates 12, 13, each approximately 250 mm in length. The lower profile 14 has substantially the same shape as the upper profile 11 and faces the upper profile 11. The gap between the side plates 12, 13 of the upper profile 11 is smaller than the gap of the side plates 31, 32 of the lower profile 14 so that the branch of the upper profile 11 fits into the lower profile 14. Lose. Thus, the side plates 12, 13, 31, 32 of each of the two profiles are in sliding contact and the lower profile 14 slides along the profile parallel to the side plates.

The spring 21 remains compressed between the upper profile 11 and the lower profile 14. For this purpose, each upper profile 11 is provided on a washer 41 which is held against the wall via a nut 23 screwed to a stud 22 welded to the wall.

The spring 21 exerts a force on the lower profile 14 in a direction perpendicular to the plane formed by the support structure 1 due to compression, whereby the lower profile 14 is the lower panel 3 of the compartment 2. The insulation member is provided on the wedge (7).

In the longitudinal direction, the lower profile 14 is located on both sides of the two upper profiles 11 so that the two upper profiles 11 can be fitted. In this way, the restraining device 9 resiliently responds when the support structure 1 is deformed and when the thermal insulation compartment 2 is cooled. The restraint device 9 formed in this way can have various lengths, for example, the length of the support structure 1 or the length of some of them.

In order to hold the springs 21, the intermediate plates 15, 33 of the lower profile 14 and the upper profile 11 are divided into four lugs (arranged at regular intervals along the longitudinal direction of the intermediate plates 15, 33). 18,36). The lugs 18, 36 themselves are provided with tabs that separate from the intermediate plates 15, 33 and extend inside the profile. Lugs 18 and 36 hold spring 21 in place and are perpendicular to support structure 1. When the two profiles 11 are aligned and juxtaposed, the lugs of the profiles 11 are aligned and the outer lugs 17, 18 of each of the profiles 11 are spaced apart from each other at approximately the same spacing between the inner lugs of the profiles. Are spaced apart.

In this way, when the upper profile 11 is juxtaposed and aligned, the springs 21 of the restraining device 9 are evenly spaced from each other as a whole. As a result, the compressive force by the spring 21 is uniformly distributed. This compressive force is applied to the lower profile 14 on the adiabatic compartment 2.

As shown in FIG. 4, in order to form a support surface for the lower profile 11, the lower panel 3 of the second insulating compartment 2 protrudes from its long side. In this way, the plate 33 of the lower profile 14 is provided on the protrusion 24 of the lower panel 3 along the long side of the lower panel 3. Therefore, the lower profile 14 distributes the pressure by the spring 21 along the extension support surface which belongs to the lower panel 3. This avoids concentration of stress. Also, the deformation of the thermal insulation compartment 2 is avoided while the support structure 1 is deformed.

One of the advantages of the restraint device 9 is shown in FIG. 4. This represents the height of the support structure 1 rather than the height of the thermal insulation compartment 2. This is made possible by the restriction device 9 being provided on the lower panel 3. Thus, the restraint does not reach the lowest temperature due to the physical distance from the first sealing membrane. The restraint device 9 can be made of a material that is not specifically suitable for cryogenic temperature, such as conventional steel or stainless steel. In addition, different heat shrinkage problems can be avoided by the lower panel 3 holding the compartment 2. After the thermal insulation compartment 2 is in place, the space between the two thermal insulation compartments 2 may be filled with a flexible thermal insulation packing 51 such as glass wool. The space between the studs 22 between the two insulating compartments 2 can also be filled with this packing.

In addition, the means for supporting the upper profile 11 are shown in more detail in FIG. 4. For each upper profile 11, the restraint 9 comprises a spacer 10 in the form of a tube. The spacer 10 traverses the upper profile 11 with a drill hole in the center thereof. The spacer 10 is provided on the wedge 7. The studs 22 welded between the two insulating compartments 2 or at the edges of the four juxtaposed insulating compartments 2 traverse the spacer 10 with a drill hole and the top of the stud 22. Extends beyond the top of the spacer 10. The upper part of the stud 22 is threaded. The nut 23 is screwed into the threaded portion of the stud 2 to securely hold the washer 41 on the spacer 10, the spacer 10 contacting the wedge 7. The intermediate plate 15 of the upper profile 11 is held by a spring 21 provided on the lower surface of the washer 41. In this way, the washer 41 forms a support surface, and the upper profile 11 is provided on the support surface and forms a gap having a predetermined value with respect to the wall. The gap is the sum of the thickness of the wedge 7 and the length of the spacer 10. The drill hole of the wedge 7 further includes countersinks 35 facing the support structure to form a space for the weld bead 37 connecting the stud to the support structure 1.

In practice, the wedge 7 is used to compensate for errors in the flatness of the wall 1 of the support structure. Wedges 7 with different thicknesses are selected so that, as a function of the geometry of the support structure, the top surface of the juxtaposed wedge 7 forms a substantially flat conceptual surface, on which the insulating compartment ( 2) can be arranged regularly. The flatness of the conceptual surface formed by the juxtaposed wedges 7 in turn affects the flatness of the surface formed by the top panel 4 of the thermally insulating compartment 2 juxtaposed on the conceptual surface. The level of flatness required depends on the rigidity of the second sealing wall that the top panel 4 should support. Better flatness allows for the use of finer membranes, which are more cost effective for the material.

In contrast to the wedge 7, the spacer 10 has a fixed length over a wide range of walls.

Thanks to the spacer 10 whose length is predetermined between the washer 41 and the wedge 7, the extension of the spring 21 is predetermined in the normal operating state of the restraint device 9, ie the compartment ( This is the case when the lower panel 3 of 2) is provided on the wedge 7. The compressive force induced by the spring 21 is predetermined in this way. The compressive force may be substantially uniform over the entire wall of the container since the same spacer 10 is used. In addition, considering that the spring 21 has a predetermined load by the length of the spacer 10, it is not necessary to individually regulate the spring at the time of installation of the thermal insulation compartment 2, which is an installation process. And shorten the installation time of the thermal insulation compartment (2).

In the deformation of the support structure 1 or the cooling of the heat insulating members, the spring 21 causes the restraining device 9 to be elastic to absorb the deformation.

In order to be able to displaceably guide, the lower profile 14 comprises four tabs 19. The tab 19 is formed by cutting the inside of the side plates 31, 32 so that the top end of the tab 19 faces the support structure 1. The tab 19 is folded toward the inside of the lower profile 14 so as to project beyond the inside of the profile 37 with respect to the side plate 31 or 32. The tab 19 is disposed on the side plate 31 or 32 at a substantially intermediate point between the center of the profile 14 and the top of the profile 14. Each tab 19 is fixed by sliding into a rectangular opening 20 in the upper profile 11. For this purpose, the portion of the tab 19 protruding beyond the interior of the lower profile 14 is inserted into the corresponding opening 20. The opening 20 is substantially longer in length than the portion of the tab 19 that protrudes beyond the interior of the lower profile 14. Accordingly, the tab 19 can be slid into the rectangular opening 20 so that the lower profile 14 can slide vertically with respect to the lower profile 14. This sliding is possible up to the top position where the top end 53 of the tab 19 comes into contact with the bottom edge of the opening 20. This is especially the case when the restraint device 9 is not yet assembled on the support structure 1. In this case, the spring 21 forms a maximum gap between the lower profile 14 and the upper profile 11. The top end 53 of the tab 19 prevents further sliding and prevents disassembly of the profiles 11, 14 and the spring 21. The opening 20 also guides the sliding of the tab 19 in a direction perpendicular to the length of the restraint device. The opening 20 is located at the center point of the gap between the spacer 10 on the side plates 12, 13 and the top of the upper profile 11. The free movement between the tab 19 and the opening 20 absorbs the slight inclination of the lower profile 14 relative to the upper profile 11 and the spacing error of the stud 22.

5 and 6 show a modification of the restraint device 9. In this variant, the upper profile 11 and the lower profile 14 are the same as the embodiment described with reference to FIGS. 2 to 4.

In the above modification, the studs 22 are threaded over substantially all of their lengths. The spacer 28 is tabbed over substantially all of its length, and is screwed to the stud 22 and provided on the wedge 7. A through hole may be formed in the lower portion of the spacer 28 to have a length substantially equal to the diameter of the tab so that the spacer 28 may be installed by screwing. The upper profile 11 traverses the spacer 28 with a drill hole and is provided to rotate and move along the axis of the spacer 28. The spacer 28 also includes a neck 25 inside the outer cylindrical size, which receives a circlip 26 at the top of the upper profile 11. The washer 41 is in bearing contact between the circlip 26 and the upper profile 11 on the lower surface. The upper portion of the spacer 28 further includes a number of flat points 29 uniformly disposed on the circumference of the spacer 28. The flat point 29 is hexagonal, allowing the spacer 28 to be screwed with a common spanner. The spacer 28 includes the deformation site to be controlled at the thread of the stud 22 and to be fixed in position in this manner. This control is realized by radial deformation that makes the top of the spacer 28 elliptical in order to elastically increase friction when screwing the spacer 28 to the stud 22. The spacer 28 also includes a flange 30 provided on the wedge 7. Since the flange 30 cannot penetrate the drill hole of the upper profile 11, it is prevented from being removed from the preassembled device.

Hereinafter, another embodiment will be described with reference to FIG. 8.

In this embodiment, each stud 22 is threaded over substantially all of its length, and the spacer 100 is tabbed over all of its length. In the same manner as in the previous embodiment, a dish head hole may be provided in the spacer 100 to facilitate the installation of the spacer 100. Spacer 100 is screwed to stud 22 to be positioned on wedge 7. Each spacer 100 includes a flange 130 provided on a wedge 7. The lower profile 14 is replaced by a retaining part 114 having a U-shaped cross section including an intermediate plate 133 between two shelves 131, 132 protruding in the container. The intermediate plate 133 includes a drill hole 52 across the spacer 100. The helical spring 121 is positioned around the spacer 100 and maintained in a compressed state between the retaining component 114 and the washer 111. The washer 111 is fixed to the upper portion of the spacer 100 by a hexagonal socket head cap screw 123 screwed to the spacer 100. For this purpose, the stud 22 does not extend over all of the length of the spacer 100 so that the screw 123 can be screwed into the thread of the spacer 100. In the same manner as in the above embodiment, the spacer 100 is deformed for the control of the screw.

The retaining component 114 is provided on the protrusion 24 of the lower panel 3 extending below the retaining component 114. However, the cross section of the retaining component 114 is wider at the portion where each drill hole 52 is formed than the portion of the retaining component extending between the two drill holes 52. Accordingly, the protrusion 24 of the lower panel 3 extends between the spacers 100 and includes a semi-circular cut portion 53 to accommodate the stud 22 and the spacer 100.

The embodiment described with reference to FIG. 8 allows the area of the holding device to be reduced.

The embodiment of the restraint device 9 has the advantage of being pre-assembled and pre-installed to facilitate the installation and shorten the installation time.

In addition, the lengths of the profiles 11, 14, 114 may be prepared, for example, in consideration of installation economics or logistics. The total length of the restraint device 9 may be provided taking these into account.

For the purpose of assembling the second insulating wall by means of the restraining device 9, it can proceed in the following order: The studs 22 are welded to the support structure 1 at regular intervals to form heat. The wedge 7 is inserted into the stud 22, the sealant bead 6 is provided on the lower panel 3, and the kraft paper is located on the support structure 1. The compartment 2 is located between several rows of studs 22, and the pre-installed restraint device 9 is screwed into several rows of studs 22 in place. The remaining space between the compartments 2 is filled with a thermal insulation packing 51.

Hereinafter, another embodiment of the restraining device for the thermal insulation compartment will be described with reference to FIGS. 10 to 13.

In Fig. 10, components similar to those in Fig. 1 use the same reference numerals. The figure shows a second thermally insulating compartment 2 in three rows, between which the restraining devices 9 in a row are inserted, respectively. In this embodiment, the lined restraint 9 is discontinuous, ie there is a space between the restraint 9. However, the main part on the length of the 2nd heat insulation compartment 2 is engaged with the restraint apparatus 9.

FIG. 10 illustrates a second sealing wall 60 provided on the second insulating compartment 2, a first insulating wall 61 formed from a juxtaposed first insulating compartment, and a first insulating compartment. The first sealing wall 63 provided is partially shown. In this example, the first insulating compartment is much thinner than the second compartment 2, for example, if the second compartment 2 is approximately 330 mm the first insulating compartment is approximately 100 mm. to be. Sealing walls are membranes made of alloys with very low coefficients of thermal expansion. For example, if the first sealing wall 63 is 0.7 mm, the second sealing wall 60 is 0.5 mm.

As shown in Figs. 11-13, the restraining device 9 in this case comprises an elongated retaining bar 214 with a drill hole 252 formed therein, with a row of studs 22 having a drill hole 252. Is connected to. As in the previous embodiment, the wedge 7 is provided with respect to the support structure 1 and the studs 22 cross the wedge 7.

The spacer 200 is coupled on the stud 22 in a manner provided on the wedge 7, for example in a sliding manner. As described below with reference to FIG. 13, the auxiliary spacer 201 is coupled onto and fixed to the stud over the spacer 200.

In a variation similar to the embodiment of FIG. 8, the stud 22 is threaded over substantially all of its length, and the spacer 200 is tabbed over all of its length. The spacer 200 is screwed into the stud 22.

The holding bar 214 having a U-shaped cross section includes an intermediate plate 213 between two protruding edges in the container inner direction. The helical spring of FIG. 8 is replaced with a leaf spring 221, with the convex portion of the leaf spring 221 facing the interior of the container. The leaf spring 221 is provided with two curved plates 221a and 221b, in which one leaf spring is pressed against another leaf spring without an adhesive, that is, in a shape that can slide with each other. The plate 221a or 221b has two bent wings extending to one side of the center along the axis of the perforated centers 265a and 265b coupled to the studs 22 and the retainer bar 214 above the auxiliary spacer 201 ( 266a, 266b, wherein the two top ends of the wings 266a provide support in a manner that abuts the top surface of the intermediate plate 213.

The auxiliary spacer 201 includes a lower ring 201a having a diameter equal to the diameter of the spacer 200 and a peg 201b having a smaller diameter so as to be engaged inside the drill hole of the plates 221a and 221b of the spring.

The spring 221 is held on the stud 22 by the washer 241 and the nut 223, the washer 241 and the nut 223 is in turn coupled to the stud 22 on the plate 221b. The washer 241 includes a lower ring having an inner diameter equal to the outer diameter of the peg 201b and engaging the upper portion of the peg 201b, and an upper ring having a larger inner diameter and in direct contact with the nut 223. . The washer 241 and the peg 201b are corrugated to couple the two plates 221a and 221b with each other. The spring 221 is pre-assembled to buy time when placing the retaining system on the wall.

As shown in FIGS. 12 and 13, the spring 221 is held in compression between the nut 223 and the retaining bar 214 in use and is located on the protrusion of the panel as before. The auxiliary spacer 201 defines a screw fastening position of the nut 223 so that a deformation path of the spring 221 is defined, and an elastic deformation is applied to the insulating compartment 2.

In FIG. 12, which shows the installation intermediate state of the device before tightening the nut 223, the auxiliary spacer 201 is remote from the spacer 200 so that the preceding load exerted by the spring 221 may be ignored for all intents and purposes. That is, the pre-assembled spring 221 is free of significant compressive force and contacts the nut 223 and retaining bar 214.

In FIG. 13, after tightening the nut 223, the auxiliary spacer 201 is lowered to a position in contact with the spacer 200 such that the preceding load applied by the spring 221 is a considerable level, for example, about 500N. .

Vessels can be used in a variety of facilities, such as ground facilities or floating structures such as LNG carriers.

With reference to FIG. 9, a view of the LNG Carrier 70 shows a hermetic sealed container 71 in the form of a prismatic pole, which is installed in the double hull 72 of a ship. The wall of the container 71 is between the first sealing wall intended to contact the LNG contained in the container, the second sealing wall provided between the first sealing wall and the double hull of the ship and between the first sealing wall and the second sealing wall and Two insulation walls are provided between the second sealing wall and the double hull 72, respectively.

The loading / unloading pipe provided on the upper deck of the vessel may be connected to the marine terminal or the port terminal in the manner already disclosed by a suitable connector for loading or unloading the LNG cargo between the vessel 71.

9 shows an example of a marine terminal that includes a loading / unloading station 75, a subsea pipe 76, and a ground facility 77. The loading / unloading station 75 is a stationary marine facility that includes a movable arm 74 and a tower 78 that supports the movable arm 74. The movable arm 74 includes a plurality of insulating flexible pipes 79 that can be connected to the loading / unloading pipes 73. A movable swivel arm 74 is provided for LNG carriers of all sizes. The connecting pipe (not shown) extends into the tower 78. The loading / unloading station 75 enables the loading and unloading of the LNG carrier 70 on the ground facility 77. The ground facility 77 includes a connecting pipe 81 connected to the loading / unloading station 75 by a liquefied natural gas storage container 80 and a subsea pipe 76. The subsea pipe 76 allows LNG to be transferred between the loading / unloading station 75 and the ground facility 77 over long distances, for example, 5 km away, whereby the LNG carrier 70 is loaded / unloaded. It can be located far from the beach during operation.

In order to generate the pressure required for the delivery of LNG, a hull pump in the ship 70 and / or a pump mounted on the ground facility 77 and / or a pump installed in the loading / unloading station 75 may be used.

Although the present invention has been described with respect to specific embodiments, it is not limited to these embodiments and it is intended that the technical equivalents of the means and combinations described above within the scope of the present invention include all such equivalents provided that they fall within the scope of the present invention. Self-explanatory

The use of "includes" and its use does not exclude the presence of other elements or steps than those specified in the claims. The use of an indefinite article on a component or step does not exclude the presence of multiple components or steps unless otherwise specified.

In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

Claims (12)

In the hermetic insulation container provided in the support structure (1) for receiving a fluid,
One of the walls of the container comprises a sealing membrane and an insulating wall provided between the sealing membrane and the support structure,
The heat insulation wall comprises a parallelepiped heat insulating member set 2 and a restraint device 9 juxtaposed on the support structure 1 along a plurality of parallel rows, wherein the restraint device 9 includes the support structure. It is provided between two rows of heat insulating members 2 to hold the heat insulating members positioned on the wedges 7 provided thereon, each heat insulating member having two opposing longitudinal edges proximate each restraint device. Wherein the longitudinal edges of the thermal insulation member each include a support surface for interacting with the restraint device 9,
Each restraint device
First and second studs 22 fixed to the support structure,
A first wedge 7 traversing the first stud 22 and provided on the support structure and a second wedge 7 traversing the second stud 22 and provided on the support structure,
The first stud 22 traverses and is fixed to the first stud 22, and faces the lower end and the lower end provided on the wedge 7 and the first wedge 7 above the first wedge. A first spacer member including a first spacer (100,200) having an upper portion having a support surface spaced at a predetermined interval from the second stud (22) and traversed and fixed to the second stud (22), Second spacers 100 and 200 including a lower end provided on an upper portion of the second wedge 7 and an upper end facing the lower end and having a support surface spaced apart from the second wedge 7 at predetermined intervals on the upper portion of the second wedge. A second spacer comprising a,
The first support member 111, 241, 201 and the second wedge on the upper surface of the first wedge may interact with the support surface of the first spacer 100, 200 to maintain a predetermined distance from the first wedge 7. Second support members 111, 241 and 201, which interact with support surfaces of the second spacers 100 and 200 to maintain a predetermined distance from the second wedge 7,
It is provided along the longitudinal direction of the rows of the heat insulating member, and is provided between the support surface of the heat insulating member and the first and second support members, to the first spacer member so as to move away from and close to the first wedge (7). The second spacer is detachably guided with respect to the second spacer member so as to move away from and close to the drill holes 52, 252 and the second wedge 7 across the first spacer so as to be detachably guided with respect to the second spacer. Hanging retaining members 114, 214 having drill holes 52, 252 crossing therethrough,
First elastic members 121 and 221 which are seated between the first support member and the retaining member, the first elastic members 121 and 221 provided to contact the first support member and the retaining member, and are seated between the second support member and the retaining member. 2 supporting members and second elastic members 121 and 221 provided in contact with the holding member,
Each of the first and second elastic members guides the holding member in the direction of the support structure such that the restraining device can support its length with respect to a support surface corresponding to each of the two rows of insulating members provided between the restraining devices. A sealed heat insulating container for maintaining a compressed state between the first and second support members and the holding member. The method of claim 1,
The heat insulating member each includes a lower panel 3 on an outer surface closest to the support structure, wherein the lower panel of the heat insulating member projects in the direction of the restraint device provided along two longitudinal edges of the heat insulating member. And two protruding regions (24) of each of the lower panels including the support surface on which the holding member is provided. The method according to claim 1 or 2,
The spacer is fastened to the stud (22) by a nut (123,223), the nut is screwed to the stud to tighten the spacer (100,200) with respect to the wedge (7). The method of claim 3,
The spacer (100,200) is a cylindrical, hermetically sealed insulation container across the stud on the axis of the spacer. The method of claim 4, wherein
The supporting member includes a washer (11,241-201) is tightened against the surface of the upper end of the spacer (100,200) by the nut (123,223). The method according to claim 1 or 2,
The spacers 100 and 200 include a neck on an outer circumferential surface acting as the support surface, and the support member includes a circlip 26 mounted on the neck and a washer 41 provided on the circlip. The elastic member is closed hermetic container located on the washer. The method of claim 6,
The spacer includes a region having a hexagonal cross section and a deformable portion provided to fasten the spacer to the stud (22). The method according to claim 1 or 2,
Said spacer comprises a flange (30,130) provided on said wedge (7). The method according to claim 1 or 2,
The restraint device 9 has a height lower than the thickness of the heat insulation member 2, and the heat insulation wall of the container is disposed between the two heat insulation members to fill the gap between the restraint device and the upper surface of the heat insulation member. The sealed heat insulating container further includes an intermediate heat insulating member. In the ship 70 for the transport of cold liquid products,
The vessel comprises a double hull (72) and a vessel (71) according to claim 1 or 2 provided in the double hull. In the method of use of the ship according to claim 10 for loading and unloading cold liquid products,
A cold liquid product is used in a vessel transported between a floating storage facility or above ground storage facility (77) and the vessel's vessel (71) via an insulated pipe (73,79,76,81). In the transportation system of cold liquid products,
Insulation pipes (73,79,76,81) and the thermal insulation provided to connect the vessel (71) installed on the hull of the vessel to the vessel 70, floating storage or ground storage facility 77 according to claim 10 A pump for flowing cold liquid product between the floating storage facility or above ground storage facility and the vessel of the vessel through a pipe.

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