KR20140105026A - Fluidtight and insulating tank equipped with a retention device - Google Patents

Abstract

A sealed thermal insulating container provided in a support structure for receiving a fluid,
Wherein the wall of the vessel comprises a sealing membrane and an insulating wall between the sealing membrane and the supporting structure,
Wherein the heat insulating wall comprises a heat insulating member of a juxtaposed parallelepiped and a restraining device between two heat insulating members for the purpose of holding the restraining device against the supporting structure,
A spacing member 28 attached to the support structure,
A support member 11 held at a predetermined distance from the support structure,
An elongated holding member (14) provided in the longitudinal direction of the heat insulating member and movably guided with respect to the spacing member so as to be closer to the wall,
And an elastic member (21) that is seated between the support member and the retaining member and held in a compressed state so that the retaining member is provided on the support surface of the two heat insulating members with respect to the length.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an oil-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of manufacturing a hermetically sealed container, and more particularly, to a container intended to contain cold liquid, and more particularly, a container for storing or transporting liquefied natural gas (LNG) at sea.

The enclosed thermal insulation vessel provided in the hull of a ship carrying liquefied natural gas is already a familiar product. FR2798902 discloses such containers. The container includes two successive sealing walls, one of which is a first wall in contact with the article contained in the container and the other is a second wall provided between the first wall and the support structure, The three sealing walls are alternately provided on the first and second heat insulating walls. The first and second heat insulating walls 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 support structure.

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

According to one embodiment, each of the heat insulating members comprises a lower panel (3) on the outer surface closest to the support structure, and the lower panel of the heat insulating member is provided along two longitudinal edges of the heat insulating member And two regions protruding in the direction of the restraining device, wherein the protruding region (24) of each of the lower panels includes the supporting surface on which the holding member is provided.

According to one embodiment, the support member is extended and provided along the longitudinal direction of the two rows of heat insulating members, and the support member and the retaining member each include a profile body including an elongated intermediate surface and two elongated side surfaces, , The side surface being provided at one side of the intermediate surface with respect to the length of the intermediate surface and being perpendicular to the support structure and the side surface of the support member being movable with respect to the spacing member, Lt; / RTI >

According to one embodiment, the side surface of the support member and the side surface of the retaining member include a stopper provided to limit movement of the retaining member with respect to the support member between both ends of the movement path.

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

According to one embodiment, the restraint device includes a second support member held by a second spacing member spaced a predetermined distance from the support structure, and the retaining member is supported by the two spacing members As shown in Fig.

According to one embodiment, the spacer is attached to the support wall by studs and nuts, the stud is fixed to the support wall to fasten the spacer to the support wall, and the nut is screwed onto the stud, do.

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

According to one embodiment, the spacing member is a spacer across which the stud crosses. Such a spacer can be screwed onto the stud against the support wall or held on the stud by other means, and the stud is fixed to the scraper support structure.

According to one embodiment, the spacer includes a neck portion provided on an outer circumferential surface, a washer provided on the neck portion, and a washer provided on the waist portion, 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 member comprises a flange provided on the wedge, the wedge being provided on the support structure and the wedge crossing the stud.

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

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

Such vessels may be part of a ground storage facility, such as a facility storing natural liquefied gas, or floating structures on the shore or deep water, in particular LNG carriers, floating gas storage / regasification facilities (FSRU) A storage / unloading facility (FPSO) or the like.

According to one embodiment, a vessel for transporting a cold liquid product includes a double hull and the vessel provided in the double hull.

According to one embodiment, the present invention proposes a shipping and unloading procedure for a ship, wherein the cold liquid product is transported through a thermal insulation pipe between a floating storage or ground storage facility and the vessel.

According to one embodiment, the present invention proposes a transport system for a cold liquid product, the system comprising: a heat-insulating pipe arranged to connect a vessel installed in the ship's hull to the ship, floating storage facility or ground storage facility; And a pump for flowing the cold liquid product between the floating storage facility or the ground storage facility and the vessel of the vessel through an insulating pipe.

The basic idea of the present invention is to provide a container that is held on the wall of the support structure by means of a restraining device which applies a resilient force to the insulating member on the wall of the container and absorbs the deformation of the supporting structure And the force of the elastic member is predetermined in consideration of a predetermined deformation by extension in the longitudinal direction.

Aspects of the present invention are based on a concept of distributing the holding force using a restraining device which applies a force to an elongated support surface of the heat insulating member in order to distribute stress.

Aspects of the present invention are based on the idea of providing a containment device that is preassembled and installed to provide a container that can be implemented with short and convenient installation times.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be understood more readily by reference to the following description of several embodiments of the invention, given by way of non-limitative example, with reference to the accompanying drawings, in which: FIG.

1 is a partial perspective view and a cross-sectional view of a wall of a closed heat-insulating container including a restraining device according to an embodiment of the present invention,
Fig. 2 is a partial perspective view of the restraining device for a container wall shown in Fig. 1,
3 is a sectional view taken along the line III-III of the restraining device shown in Fig. 2,
4 is a cross-sectional view of the container wall according to IV-IV to show a restraint device located between two insulating members,
5 is a partial perspective view of a modification of the restraining device,
FIG. 6 is a perspective view of the restraining device shown in FIG. 5 according to VI-VI,
Figure 7 is a partial perspective view of the means for securing the containment device of the container wall shown in Figure 1,
8 is a view in accordance with yet another partial perspective view of a wall of a hermetically sealed container including a restraining device according to another embodiment,
9 is a view showing an LNG carrier vessel and a terminal for loading / unloading the vessel,
FIG. 10 is a partial perspective view and cross-sectional view of a closed heat-insulating container including a restraining device according to another embodiment of the present invention,
11 is an exploded perspective view of the restricting device of the container wall shown in Fig. 10,
Fig. 12 and Fig. 13 are cross-sectional views showing two different states before and after the restraint device is installed in the restraint device shown in Fig.

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

By convention, "upper" refers to the case located closer to the interior of the vessel, "lower" refers to the position closer to the support structure 1, .

The vessel comprises 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 insulating wall and the first sealing wall are not shown.

The second adiabatic wall is formed by a plurality of insulating members of a rectangular parallelepiped compartment (2) provided in a plurality of rows and arranged in a manner to substantially cover the inner surface of the supporting structure (1). Each heat insulating compartment includes a lower panel 3 and an upper panel 4 and a heat 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 rectangular wedge 7 provided in the support structure 1. [ The sealant bead 6 forms a line parallel to the lengthwise direction of the heat insulating compartment 2 and is supported by a kraft paper (not shown) in order to prevent the internal resin from adhering to the support structure 1. [ (1). The sealant bead 6 reduces the force exerted on the compartment 2 due to such deformation when a dynamic deformation occurs in the support structure 1. The purpose of the sealant bead 6 is to compensate for the difference between the theoretical surface expected for the vessel wall and the incomplete surface of the support structure 1 due to manufacturing tolerances. The upper panel 4 further includes two grooves 50, the grooves 50 having an inverted T-shape in section, which receive a rectangular shaped welding stub (not shown). The compartment 2 of the second heat insulating wall is supported by the supporting structure 1 by the restraining device 9 fixed to the wall 1 inside the space formed by the gap between the two rows of the heat insulating compartments 2, / RTI > The restraining device 9 is elongated and provided longitudinally along the side defining the length of the compartment 2. [

The two rows of compartments 2 are spaced apart so that the restricting device 9 can be positioned therebetween. Conversely, within one row, the compartments (2) can be juxtaposed very close to each other to maximize insulation.

The second sealing wall (not shown) is formed by a plurality of strike-protruding edges in a manner that is already familiar to those skilled in the art. The protruding edges of each strut are welded to the weld stub.

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

The compartment of the first insulating wall can be held on the second insulating wall by a number of means familiar to those skilled in the art. As an example, the means described in FR 2,887010 can be used on the second sealing wall. Alternatively, it is also possible to implement a vessel containing only a single sealing wall and a single insulating wall.

Hereinafter, the restraining device 9 for holding the second heat insulating wall on the supporting structure 1 will be described in more detail with reference to Figs. 2 to 5. Fig. As described above, the second adiabatic wall is formed by 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 one another at regular intervals are welded to the support structure 1. The multiple compartments (2) are then located between the multiple rows of studs (22). The restricting device 9 is fixed to the supporting structure 1 by a single row of studs 22. The constraining device 9 comprises a top profile 11 aligned and juxtaposed along a single row of studs 10. The upper profile 11 includes an intermediate plate 15 and two side plates 12, 13 each having a length of approximately 250 mm. 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 and 13 of the upper profile 11 is smaller than the gap between the side plates 31 and 32 of the lower profile 14 so that the upper body of the upper profile 11 is sandwiched by the lower profile 14 Loses. Thus, the side plates 12, 13, 31, 32 of each of the two profiles are in sliding contact and the lower profile 14 is sliding along the profile in parallel with the side plates.

The spring 21 maintains a compressed state between the upper and lower profiles 11,14. To this end, each upper profile 11 is provided on a washer 41 which is held against the wall through a nut 23 screwed to a wall-welded stud 22.

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 so that the lower profile 14 is in contact with the lower panel 3 of the compartment 2 ) So that the heat insulating members are 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 restricting device 9 elastically corresponds when the supporting structure 1 is deformed and when the heat-insulating compartment 2 is cooled. The constraining device 9 formed in this way can have various lengths, for example, the length of the supporting structure 1, or the length of some of them.

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

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

4, the lower panel 3 of the second heat-insulating compartment 2 is protruded from its long side so as to form a support surface for the lower profile 11. As shown in Fig. The plate 33 of the lower profile 14 is provided on the projection 24 of the lower panel 3 along the long side of the lower panel 3. [ Thus, the lower profile 14 distributes the pressure by the spring 21 along the extended support surface belonging to the lower panel 3. Thus, concentration of stress is avoided. It also avoids deformation of the heat-insulating compartment (2) while the support structure (1) is deformed.

One of the advantages of the restraining device 9 is shown in Fig. This represents the height of the supporting structure 1 rather than the height of the heat insulating compartment 2. This is made possible by providing the restraining device 9 on the lower panel 3. [ Thus, the constraining device does not reach the minimum temperature due to the physical distance from the first sealing membrane. Therefore, the restricting device 9 can be made of a material which is not specifically suited to ultra-low temperatures such as conventional steel or stainless steel. In addition, the lower panel 3 can avoid the different heat shrinkage problems by keeping the compartment 2 in place. After the insulating compartment 2 is in place, the space between the two insulating compartments 2 can be filled with a flexible insulating packing 51 such as glass wool. The space between the studs 22 between the two insulating compartments 2 can also be filled with such a packing.

In addition, the means for supporting the upper profile 11 is shown more specifically in Fig. For each upper profile 11, the restraining device 9 comprises a spacer 10 in the form of a tube. The spacer 10 crosses the upper profile 11 with a drill hole at its center. The spacer 10 is provided on the wedge 7. A stud 22 welded between two insulating compartments 2 or welded to the edges of four juxtaposed adiabatic compartments 2 traverses the spacer 10 with a drill hole, Extends beyond the uppermost end of the spacer (10). The upper portion of the stud 22 is threaded. The nut 23 is threaded on the threaded portion of the stud 2 to securely fasten the washer 41 on the spacer 10 and the spacer 10 contacts 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 supporting surface, and the upper profile 11 is provided on the supporting 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 comprises a countersink 35 directed to the support structure so as 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 the error in the flatness of the wall 1 of the support structure. The wedges 7 of different thicknesses are selected such that the function of the geometry of the supporting structure is such that the upper surface of the juxtaposed wedge 7 forms a substantially flat conceptional surface on which the insulating compartment 2) can be regularly provided. The flatness of the conceptual surface formed by the juxtaposed wedge 7 in turn affects the evenness of the surface formed by the upper panel 4 of the heat-insulating compartment 2 juxtaposed at the conceptual surface. The level of flatness required depends on the rigidity of the second sealing wall which the top panel 4 must support. As flatness is improved, finer membranes can be used, which is more cost effective than material.

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

The extension of the spring 21 is predetermined in the normal operating state of the restraining device 9, that is to say in the case of the compartment (not shown) 2 is provided on the wedge 7. The lower panel 3 of Fig. The compression force induced by the spring 21 is determined in advance by this method. Since the compressive force uses the same spacer 10, it can be substantially uniform over the entire container wall. Also, taking into account that the spring 21 has a predetermined load due to the length of the spacer 10, it is not necessary to individually regulate the springs when installing the heat-insulating compartment 2, And shortens the installation time of the heat insulating compartment (2).

Upon deformation of the support structure 1 or cooling of the heat insulating members, the spring 21 causes the restraining device 9 to have elasticity so as to absorb the deformation.

The lower profile 14 includes four tabs 19 so that it can be displaceably guided. The tab 19 is formed by cutting the inside of the side plates 31 and 32 so that the upper end of the tab 19 faces the supporting structure 1. The tab 19 is folded toward the inside of the lower profile 14 so as to protrude beyond the inside of the profile 37 with respect to the side plate 31 or 32. The tab 19 is disposed at a substantial midpoint between the center of the profile 14 and the top of the profile 14 on the side plate 31 or 32. Each tab 19 is slidably fixed to the square opening 20 in the upper profile 11. For this purpose, the portion of the tab 19 protruding beyond the inside of the lower profile 14 is inserted into the corresponding opening 20. The opening 20 is substantially longer in length than a portion of the tab 19 protruding beyond the interior of the lower profile 14. [ Thus, the tab 19 is slidable in the rectangular opening 20 so that the lower profile 14 can be vertically slid with respect to the lower profile 14. This sliding is possible up to the uppermost position at which the uppermost end 53 of the tab 19 comes into contact with the lower edge of the opening 20. This is especially the case when the restricting device 9 is not yet assembled on the supporting structure 1. [ In this case, the spring 21 forms a maximum gap between the lower profile 14 and the upper profile 11. The uppermost 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 restraining device. The opening 20 is located at the center of the space between the spacer 10 on the side plates 12, 13 and the uppermost end of the upper profile 11. The free movement between the tab 19 and the opening 20 absorbs the slight slope of the lower profile 14 and the spacing error of the stud 22 relative to the upper profile 11.

Figs. 5 and 6 show a modification of the restraining device 9. Fig. In this variant, the upper profile 11 and the lower profile 14 are identical to the embodiment described with reference to Figures 2-4.

In the variant described above, the stud 22 is threaded with respect to substantially all of its length. The spacers 28 are tapped with respect to substantially all of their length and are screwed onto the studs 22 and provided on the wedge 7. A through hole may be formed in the lower portion of the spacer 28 with a length substantially equal to the diameter of the tab so that the spacer 28 can be installed by screwing. The upper profile 11 traverses the spacer 28 into the drill hole and is provided to rotate and move along the axis of the spacer 28. The spacer 28 also includes a neck 25 within the outer cylindrical dimension and the neck 25 receives a circlip 26 from the top of the upper profile 11. The spacer 28 is shown in Fig. The washer 41 is in bearing contact between the clip 26 and the upper profile 11 on the lower face. The upper portion of the spacer 28 further includes a plurality of kneading points 29 uniformly arranged on the circumference of the spacer 28. The knife point 29 is hexagonal so that the spacer 28 is screwed into a common spanner. The spacer 28, including the deformation area, is controlled by the threads of the stud 22 and is fixed in position in this manner. This control is realized by a radial deformation that makes the top of the spacer 28 elliptical to increase the friction elastically when screwing the spacer 28 to the stud 22. The spacer 28 also includes a flange 30 provided on the wedge 7. The flange 30 prevents it from being removed from the preassembled device because it can not penetrate the drill hole of the top profile 11. [

Hereinafter, another embodiment will be described with reference to Fig.

In this embodiment, each stud 22 is threaded with respect to substantially all of its length, and the spacer 100 is formed with a tab with respect to all of its length. By the same manner as in the previous embodiment, a dish head hole can be provided in the spacer 100 to facilitate the installation of the spacer 100. [ The spacer 100 is screwed onto the stud 22 to be positioned on the 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 inboard direction. The intermediate plate 133 includes a drill hole 52 across the spacer 100. The helical spring 121 is located around the spacer 100 and remains compressed between the retaining part 114 and the washer 111. The washer 111 is fixed to the upper portion of the spacer 100 by a socket head cap screw 123 having a hexagonal shape and screwed to the spacer 100. For this purpose, the stud 22 does not extend over the entire 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 part 114 is provided on the projection 24 of the lower panel 3 extending below the retaining part 114. However, the cross section of the retaining part 114 is wider at the portion where each drill hole 52 is formed than the portion of the retaining part that extends between the two drill holes 52. The projection 24 of the lower panel 3 extends between the spacers 100 and includes a cutout 53 in the form of a semicircular shape for receiving 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 advantages of being pre-assembled and pre-assembled, which facilitates the installation and shortens the installation time.

Further, the lengths of the profiles 11, 14, and 114 may be provided considering, for example, economical installation or logistics. The total length of the restricting device 9 can be provided in consideration of these.

For the purpose of assembling the second insulating wall by the restraining device 9, proceeding 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 and the sealant bead 6 is provided on the lower panel 3 and the craftsheet is placed on the support structure 1. The compartment 2 is located between the rows of studs 22 and the pre-installed restraining devices 9 are screwed into the rows of studs 22 in place. The remaining space between the compartments (2) is filled with a heat insulating packing (51).

Hereinafter, another embodiment of the restraining device for the heat insulating compartment will be described with reference to Figs. 10 to 13. Fig.

In Fig. 10, components similar to those in Fig. 1 use the same reference numerals. The figure shows a second row of two heat-insulating compartments (2), in which a row of confinement devices (9) are respectively inserted between the second heat-insulating compartments (2). In this embodiment, the row of confinement devices 9 is discontinuous, i.e., there is a space between the confinement devices 9. However, the main portion on the length of the second heat-insulating compartment 2 is engaged with the restraining device 9. [

Figure 10 shows a second sealing wall 60 provided on the second heat-insulating compartment 2, a first heat-insulating wall 61 formed from a juxtaposed first heat-insulating compartment and a second heat- And partially illustrates the first sealing wall 63 provided. In this example, the first adiabatic compartment is much thinner in thickness than the second compartment 2, for example if the second compartment 2 is approximately 330 mm, the first adiabatic compartment is approximately 100 mm to be. The sealing wall is a membrane made of an alloy with a very low coefficient of thermal expansion. For example, if the first sealing wall 63 is 0.7 mm, then the second sealing wall 60 is 0.5 mm.

11 to 13, the restraining device 9 in this case includes an elongated holding bar 214 formed with a drill hole 252, and a single row of studs 22 are inserted into the drill hole 252, Lt; / RTI > As with the previous embodiment, a wedge 7 is provided for the support structure 1 and the stud 22 traverses the wedge 7.

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

In a variation similar to the embodiment of Figure 8, the studs 22 are threaded with respect to substantially all of their lengths, and the spacers 200 are tapped with respect to all of their lengths. The spacer 200 is screwed onto the stud 22.

The retaining bar 214, whose cross section is U-shaped, includes an intermediate plate 213 between two protruding edges in the container interior direction. The helical spring of FIG. 8 is replaced by a leaf spring 221, and the convex portion of the leaf spring 221 faces the inside of the container. The plate spring 221 is provided with two curved plates 221a and 221b which are shaped so that one plate spring can be pressed against the other plate spring without sliding, that is, can slide with respect to each other. The plate 221a or 221b includes perforation center portions 265a and 265b coupled to the stud 22 at the top of the auxiliary spacer 201 and two curved wings (not shown) extending to one side of the center along the axis of the retaining bar 214 266a and 266b, and the two uppermost ends of the wing 266a provide a bearing force in a manner in contact with the upper surface of the intermediate plate 213. [

The auxiliary spacer 201 includes a lower ring 201a of the same diameter as the diameter of the spacer 200 and a smaller diameter peg 201b to be coupled to the interior of the drill hole of the plates 221a and 221b of the spring.

The spring 221 is held on the stud 22 by a washer 241 and a nut 223 and the washer 241 and the nut 223 are in turn coupled to the stud 22 at the top of 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 wrinkled to couple the two plates 221a and 221b to each other. Spring 221 is preassembled to make time when positioning the retention system on the wall.

As shown in Figs. 12 and 13, the spring 221 is kept in a compressed state between the nut 223 and the retaining bar 214 in use, and is positioned on the projection of the panel as before. The auxiliary spacer 201 limits the screwing position of the nut 223 so that the deformation path of the spring 221 is limited and elastic deformation is applied to the heat insulating compartment 2.

In Figure 12, which shows the installation intermediate state of the device before tightening the nut 223, the auxiliary spacer 201 is spaced farther from the spacer 200 so that the forward load exerted by the spring 221 is negligible for all intents and purposes That is, the pre-assembled spring 221 is in contact with the nut 223 and the holding bar 214 in the absence of a significant compressive force.

13, after the nut 223 is tightened, the auxiliary spacer 201 is lowered to a position in contact with the spacer 200, and the leading load applied by the spring 221 is a considerable level, for example, about 500N .

The vessel can be used in various types of facilities such as floating facilities such as ground facilities and LNG carriers.

Referring to Fig. 9, the diagram for the LNG carrier line 70 shows a hermetically sealed thermal insulation vessel 71, generally in the form of a prism, installed in the double hull 72 of the ship. The wall of the vessel 71 comprises a first sealing wall intended to contact the LNG contained in the vessel, a second sealing wall provided between the first sealing wall and the double hull of the ship, and a second sealing wall between the first sealing wall and the second sealing wall And two insulation walls provided between the second sealing wall and the double hull 72 respectively.

The loading / unloading pipe provided in the upper deck of the vessel may be connected to the marine terminal or the port terminal in the manner already disclosed by means of suitable connectors, for loading or unloading LNG cargoes with the vessel 71.

9 shows an example of a marine terminal including a loading / unloading station 75, a subsea pipe 76 and a ground facility 77. Fig. The loading / unloading station 75 is a stationary maritime facility that includes a mobile arm 74 and a tower 78 that supports the mobile arm 74. The movable arm 74 includes a plurality of insulated flexible pipes 79 that can be connected to the loading / unloading pipe 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 vessel 80 and an undersea pipe 76. The LNG can be transferred between the loading / unloading station 75 and the ground facility 77 over a distance of, for example, 5 km, due to the underside pipe 76, so that the LNG carrier 70 can be loaded / unloaded It can be located far away from the coast during work.

A pump mounted on the ship 77 and / or a pump installed on the loading / unloading station 75 may be used to generate the pressure required for the transfer of the LNG.

While the present invention has been described with reference to specific embodiments, it is not intended to be limited to these embodiments, and it is intended that the scope of the invention include all such equivalents, It is obvious.

The use of "comprises" and its uses does not exclude the presence of other elements or steps than the elements or steps specified in the claims. The use of an indefinite article for a component or step does not exclude the presence of a number of elements or steps unless otherwise specified.

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

Claims (12)

A sealed thermal insulating container provided in a support structure (1) for receiving a fluid,
Wherein one of the walls of the vessel comprises a sealing membrane and an insulating wall provided between the sealing membrane and the supporting structure,
Wherein the heat insulating wall comprises a parallelepiped heat insulating member set (2) and a confining device (9) juxtaposed on the supporting structure (1) along a plurality of parallel rows, the confining device (9) Is provided between two rows of the heat insulating members (2) for holding the heat insulating members located on the wedge (7) provided on the wedge (7), and each of the heat insulating members has two opposing longitudinal edges Wherein the longitudinal edges of the heat insulating member each include a support surface for interacting with the restraining device,
Each of the restraint devices,
First and second studs 22 fixed to the support structure,
A first wedge (7) across the first stud (22) and provided on the support structure, a second wedge (7) across the second stud (22) and provided on the support structure,
The first stud 22 is transverse and fixed to the first stud 22 and has a lower end portion provided on the wedge 7 and a lower end portion opposed to the lower end portion of the first wedge 7, And a first spacer (100, 200) having an upper portion having a support surface spaced apart from the first stud (22) by a predetermined distance from the second stud (22) A second spacer (100,200) comprising a lower end portion provided on the upper portion of the second wedge (7) and an upper portion facing the lower end portion and having a support surface spaced apart from the second wedge (7) A second spacing member,
A first support member (111, 241, 201) on the first wedge for interacting with a support surface of the first spacer (100, 200) so as to maintain a predetermined spacing from the first wedge (7) A second support member (111, 241, 201) for interacting with a support surface of the second spacer (100, 200) so as to maintain a predetermined distance from the second wedge (7)
A first wedge (7) provided along the longitudinal direction of the heat insulating member and provided between the supporting surface of the heat insulating member and the first and second supporting members, (52, 252) transverse to said first spacer so as to be detachably guided relative to said second spacer and to be detachably guided relative to said second spacer to come away from and proximate said second wedge An elongated retaining member (114, 214) having drill holes (52, 252)
A first elastic member (121, 221) seated between the first supporting structure and the holding member, the first elastic member (121, 221) being arranged to contact the first supporting structure and the holding member, 2 supporting structure and a second elastic member (121, 221) provided to be in contact with the holding member,
Each of the first and second elastic members guides the restraint member in the direction of the support structure so as to support the length thereof with respect to the support surface corresponding to each of the two rows of heat insulating members provided between the restraint devices And a compressed state is maintained between the first and second support members and the restraint member. The method according to claim 1,
Each of the heat insulating members includes a lower panel (3) on the outer surface closest to the support structure, and the lower panel of the heat insulating member protrudes in the direction of the restraining device provided along two longitudinal edges of the heat insulating member Wherein the projecting region (24) of each of the lower panels comprises the supporting surface on which the holding member is provided. 3. The method according to claim 1 or 2,
Wherein the spacer is fastened to the stud (22) by means of nuts (123, 223) and the nut is screwed onto the stud to tighten the space (10, 200) with respect to the wedge (7). The method of claim 3,
Wherein the spacers (100, 200) are cylindrical and cross the studs on the axis of the spacer. 5. The method of claim 4,
Wherein the support member includes a washer (11, 241-201) fastened to a surface of an upper end portion of the spacer (10, 200) by the nut (123, 223). 6. The method according to any one of claims 1 to 5,
Wherein the spacer (100, 200) comprises a neck on an outer circumferential surface serving as the support surface, the support member including a shoulder (26) mounted on the neck and a washer (41) And the elastic member is located on the washer. The method according to claim 6,
Wherein the spacer includes a hexagonal section having a cross section and a deforming section provided on the stud to fasten the spacer. 8. The method according to any one of claims 1 to 7,
Wherein said spacer comprises flanges (30, 130) provided on said wedge (7). 9. The method according to any one of claims 1 to 8,
The restricting device (9) has a height lower than the thickness of the heat insulating member (2), and the heat insulating wall of the container is provided between the two heat insulating members to fill a gap between the restricting device and the upper surface of the heat insulating member And an intermediate heat insulating member provided on the heat insulating member. In a vessel (70) for transporting a cold liquid product,
The ship comprises a double hull (72) and a vessel (71) according to any one of claims 1 to 9 provided on the double hull. A method of using a vessel according to claim 10 for shipping and unloading cold liquid products,
Wherein the cold liquid product is transported between the floating storage facility or the ground storage facility (77) and the vessel (71) of the vessel via the insulating pipes (73, 73, 79, 81). In a cold liquid product delivery system,
A heat insulating pipe (73, 73, 79, 76, 81) provided to connect the vessel (71) installed on the hull of the ship to the ship (70), floating storage facility or ground storage facility (77) And a pump for flowing the cold liquid product between the floating storage facility or the ground storage facility and a vessel of the vessel through a pipe.

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