KR101672209B1 - Cargo for liquefied natural gas - Google Patents

Abstract

A liquefied gas holding window for securing surface rigidity of a barrier used in a liquefied gas holding window is disclosed. A liquefied gas holding window according to an embodiment of the present invention includes a heat insulating panel structure, a barrier wall having a curved barrier wrinkle toward the heat insulating panel structure, And a barrier reinforcement unit for supporting the part.

Description

{CARGO FOR LIQUEFIED NATURAL GAS}

More particularly, the present invention relates to a liquefied gas holding window for securing the surface rigidity of a barrier used in a liquefied gas holding window.

The liquefied gas is a gas which is cooled or compressed to be made into a liquid. For convenience of transportation, the gas which is gas at room temperature is used as a liquid. One of the important uses in liquefied gas is liquefied natural gas. Liquefied natural gas refers to a colorless transparent cryogenic liquid that reduces methane-based natural gas to -162 ° C and reduces its volume by one-sixth.

As such liquefied natural gas is used as an energy source, an efficient transportation method that can transport the gas from the production base to the purchase site of the customer site has been examined in order to use this gas as energy. As a result of this effort, a large amount of liquefied gas A liquefied gas transport vessel capable of transporting liquefied natural gas to the sea was developed.

However, the liquefied gas transportation vessel is required to have a cargo that can store and store the liquefied gas liquefied at an extremely low temperature.

That is, since the liquefied natural gas has a higher vapor pressure than the atmospheric pressure and has a boiling temperature of about -162 ° C, in order to safely store and store such liquefied natural gas, For example, it should be made of aluminum steel, stainless steel, 35% nickel steel, etc. It should be designed with a unique insulation panel structure which is resistant to thermal stress and heat shrinkage and prevents heat penetration. Such a liquefied gas holding window can be divided into a self-supporting type and a membrane type according to its structure.

If the liquefied gas leaks to the inside of the heat insulating panel, it may cause damage to the cargo window due to rapid volume expansion due to temperature increase. Thus, a membrane barrier is provided to seal the liquefied gas inside the cargo hold.

In the liquefied gas holding window, a plurality of barrier sheets are combined to form a membrane barrier, and these walls are subject to thermal shrinkage due to cryogenic liquefied natural gas and may be damaged due to thermal stress when the thermal shrinkage occurs.

Because of this problem, the barriers have a corrugation to have a low in-plane stiffness. The bending of the barrier reduces the thermal stress at the welded part by deforming a certain amount when heat shrinkage occurs.

Korean Patent Laid-Open Publication No. 10-2012-0013233 (Feb. 14, 2012) discloses a liquefied natural gas storage tank and a manufacturing method thereof.

Korean Published Patent Application No. 10-2012-0013233 (2012.02.14.)

An embodiment of the present invention is intended to provide a liquefied gas holding window capable of preventing the barrier wrinkle portion from being deformed by the impact of the storage fluid.

Further, it is an object of the present invention to provide a liquefied gas holding window that is easy to assemble and repair.

Further, it is an object of the present invention to provide a liquefied gas holding window which is easy to use in the inner space of the wrinkle portion.

Further, it is an object of the present invention to provide a liquefied gas holding window capable of ensuring surface rigidity.

According to an aspect of the present invention, there is provided an insulation panel structure, comprising: an insulating panel structure installed in a hull and insulating a liquefied gas from the outside; A barrier surrounding the storage space in which the liquefied gas is contained and sealing the insulation panel structure, the barrier comprising curved barrier ribs toward the insulation panel structure; And a barrier reinforcement unit inserted into a receiving groove formed in the heat insulating panel structure to receive the barrier ribs and supporting the barrier ribs.

Further, the barrier reinforcement unit may be provided with a liquefied gas holding window filled to fill the space between the receiving groove and the barrier.

The heat insulating panel structure may include a heat insulating panel for insulating the liquefied gas, and a reinforcing panel for fixing the barrier on the heat insulating panel. The barrier strengthening unit may include a liquefied gas- Can be provided.

The barrier rib reinforcing unit may include a support portion supported in the receiving groove and a seating portion provided to correspond to the shape of the barrier rib portion and on which the barrier rib portion is seated.

The barrier rib reinforcing unit may include a support portion formed by processing a metal sheet and supported by the receiving groove and a seating portion provided corresponding to the shape of the barrier rib portion and on which the barrier rib portion is seated, And a barrier reinforcing member provided with a space part in the liquefied gas holding window.

Further, the barrier reinforcement unit may further include a filling member filled to fill the space portion of the barrier reinforcement member.

The heat insulating panel structure may include a heat insulating panel for insulating the liquefied gas and a reinforcing panel for fixing the barrier on the heat insulating panel. The barrier reinforcing member may include a liquefied gas- Can be provided.

The barrier rib reinforcing unit is formed by processing a metal sheet and has a seating part provided to correspond to the shape of the wall corrugated part and on which the wall rim part is seated and a wall part provided on both sides of the seating part to be fixed to the heat- A liquefied gas holding window including a door can be provided.

The heat insulating panel structure may include a heat insulating panel for insulating the liquefied gas, and a reinforcing panel for fixing the barrier on the heat insulating panel, wherein a first groove portion for inserting the fixing portion is formed on an upper surface of the reinforcing panel May be provided.

In addition, a second groove part for receiving the seating part is formed on the upper surface of the reinforcing panel, and a liquefied gas holding window having the upper surface of the reinforcing panel and the upper surface of the seating part are flush with each other.

The heat insulating panel structure may include a heat insulating panel for insulating the liquefied gas and a reinforcing panel for fixing the barrier on the heat insulating panel, And a joining member for joining the first groove portion and the second groove portion to each other, wherein the joining member forms a third groove portion into which the fixing portion is inserted.

The liquefied gas holding window according to the embodiment of the present invention is provided so that the corrugated portion for absorbing shrinkage and expansion due to heat of the barrier contacting directly with the cryogenic liquid is bent in the direction of the heat insulating panel without protruding into the storage space, It can withstand.

Therefore, the risk of breakage of the corrugated portion can be greatly reduced, and the reliability of the liquefied gas holding window can be enhanced.

In addition, the liquefied gas holding window according to the embodiment of the present invention is provided with the barrier reinforcing member, so that the surface rigidity of the barrier wall due to the cryogenic liquid material contained in the storage space can be secured.

1 is a cross-sectional view showing the structure of a liquefied gas holding window.
Fig. 2 is a perspective view showing the corrugated part of the barrier wall. Fig.
3 is a perspective view showing a state in which a barrier is installed according to an embodiment of the present invention.
4 is a cross-sectional view taken along the line AA of Fig.
5 is a cross-sectional view showing a state in which a barrier is installed according to another embodiment of the present invention.
6 is a cross-sectional view illustrating a state in which a barrier is installed according to another embodiment of the present invention.
7 is a cross-sectional view showing a state in which a barrier is installed according to another embodiment of the present invention.
8 is a cross-sectional view showing a state in which a barrier is installed according to another embodiment of the present invention.
9 is a cross-sectional view showing a state in which a barrier is installed according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below and may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

1 is a cross-sectional view showing the structure of a liquefied gas holding window.

Liquefied gas storage is a facility for storing cryogenic fluid such as LNG (Liquefied Natural Gas) or LPG (Liquefied Petroleum Gas). It is used for transporting liquefied gas such as RV (Regasification Vessel), FPSO (Floating, Production, Storage and Offloading), FSRU (Floating Storage and Regasification Unit), SRV (Shuttle and Regasification Vessel) and the like, and a gas storage structure installed on the land.

The liquefied gas holding window includes a main wall 40 and a two-layered heat insulating panel structure (U, L) for sealing the receiving space of the liquefied gas so as to ensure airtightness stability. The upper insulating panel structure It is common to include an auxiliary barrier 31 between the lower insulating panel structures L. [ Further, the heat insulating panel can generally be made of a lightweight material such as a polyurethane foam which is excellent in heat insulation performance.

The lower insulating panel structure L may include a lower heat insulating panel 20 and a lower reinforcing panel 21. [ The bottom insulation panel 20 is installed on the inner surface of the outer wall 10 of the liquefied gas transportation vessel and is fixed by an epoxy mastic 11 through a lower reinforcement panel 21 And is mechanically fixed by a stud bolt 12 at the same time. The outer wall 10 can support the load of the storage fluid, and an inner hull can be used.

More specifically, the mastic 11 is adhered to the outer wall 10 after being applied to the lower surface of the lower reinforcing panel 21 with an elastic adhesive material. The mastic 11 can adjust the level difference of the lower heat insulating panel 20 and absorb the load applied to the lower heat insulating panel 20. A stud bolt 12 is welded to the inner surface of the outer wall 10 and the lower thermal insulating panel 20 forms a through hole 22 so that the stud bolt 12 can be inserted. When the stud bolt 12 is inserted into the through hole 22, the lower reinforcing panel 21 and the stud bolt 12 are firmly fixed by using the nut 13. Thereafter, a cylindrical plug 23 is inserted into the through hole 22 to finish the lower heat insulating panel 20.

The adjacent lower heat insulating panels 20 are coupled with each other with a gap therebetween and a flat joint made of glass wool is attached to the interval between the lower heat insulating panels 20 after the lower heat insulating panel 20 is fixed. ; 24) are filled.

An auxiliary barrier 31 such as rigid triplex or SUS (stainless steel) is attached and fixed on the lower insulating panel 20. The adjacent auxiliary barrier 31 is connected by the auxiliary connection barrier 32 so that the sealing of the auxiliary barrier 31 is completed. The auxiliary connection barrier 32 may be a supple triplex 32 attached to a rigid triplex 31 using epoxy glue.

The upper insulating panel structure U may include an upper insulating panel 30, a connecting panel 33, and an upper reinforcing panel 34. A top insulation panel 30 is laminated and fixed on the lower insulation panel 20 and a connection panel 33 (or a top bridge panel) is installed between the adjacent upper insulation panels 30 . The connection panel 33 can be attached and fixed on the support triplex 32 using an epoxy glue.

After the installation of the upper insulating panel 30 and the connecting panel 33 is completed, a kitchen wall 40 using a metal material is mounted on the upper insulating panel 30 and the connecting panel 33 with an anchor strip (not shown) And thus the cargo window is completed.

The above has described the cargo window by taking one embodiment of the liquefied gas holding window as an example. In addition, a liquefied gas holding window may be used, either using a weldable secondary barrier or including other types of membrane barriers. That is, the embodiment of the present invention is not limited to the structure of the liquefied gas holding window 1 described above, and any kind of liquefied gas holding window using the membrane may be used regardless of its kind.

Fig. 2 is a perspective view showing the corrugation 42 of the barrier 40. Fig. The following barriers 40 include the main wall 40 and the auxiliary barrier 31 of Fig. However, for convenience, the kitchen wall 40 will be described as an example.

The barrier 40 is for hermetically protecting the adiabatic panel structures (U, L) from the liquefied gas, and a plurality of sheets are joined by welding or the like to block the adiabatic panel structures (U, L) from the liquefied gas. The barriers 40 can be made of various materials, but generally stainless steel (SUS) materials can be used.

The barrier 40 is of a metallic material in direct contact with the cryogenic liquefied gas and is subjected to a large thermal stress. Accordingly, the barrier 40 may include two-directional folds 42 (42a, 42b) that intersect each other to relieve thermal stress. For example, the barrier 40 may have a flat surface portion 41 and a flat surface portion 41 that is bent from the flat surface portion 41 toward the lower heat insulating panel 20 or the upper heat insulating panel 30 and is easily shrunk or stretched by thermal deformation The first barrier ribs 42a and the second barrier ribs 42b arranged in different directions, and the intersection portion 43 where the barrier ribs in the two directions cross each other. The corrugations 42 below include the intersection 43. This is because the intersection portion 43 also refers to a portion where the two corrugations 42a and 42b meet with each other.

Hereinafter, when the lower insulating panel 20 and the upper insulating panel 30 are simultaneously included, the heat insulating panels 20 and 30 will be referred to. Hereinafter, the reinforcement panels 21 and 34 will be referred to as the reinforcement panel 21 and the upper reinforcement panel 34 at the same time. Since the barrier 40 includes the kitchen wall 40 and the auxiliary barrier 31, as described above.

In the drawings of the present invention, two-directional barrier ribs 42a and 42b arranged vertically to each other are shown, but may include three or more barrier ribs as necessary. For example, the three-directional barrier ribs may be disposed at an angle of 60 degrees with respect to each other.

The thermal stress acting in the in-plane direction of the barrier 40 can be solved by the two-direction wrinkles 42a and 42b. Since the corrugated portion 42 is subject to deformation in the width direction, the corrugated portion 42 can cope with thermal stress. The thermal stress acting in the longitudinal direction (first direction) of the first barrier ribs 42a is relieved by the stretchability of the second barrier ribs 42b and the thermal stress in the longitudinal direction of the second barrier ribs 42b 2 direction) can be solved by the stretchability of the first barrier rib portion 42a.

Hereinafter, the heat insulating panels 20 and 30 and the reinforcing panels 21 and 34 according to the construction of the wall 40 of the oversized wall 40 according to the embodiment of the present invention will be described with reference to FIGS. 3 and 4. FIG. FIG. 3 is a perspective view showing a state in which a barrier 40 is installed according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along the line A-A in FIG.

The barrier wall 40 of the liquefied gas holding window according to an embodiment of the present invention may prevent the barrier ribs 42 (42a, 42b) from being deformed by the shock of the storage fluid. Since the barrier ribs 42 are provided to bend toward the heat insulating panels 20 and 30, the heat insulating panels 20 and 30 are provided with receiving grooves 44 so as to receive the barrier ribs 42. As a result, a void is generated between the barrier ribs 42 and the heat insulating panels 20 and 30. Therefore, deformation may occur within the space of the barrier ribs 42 and the receiving grooves 44 by the sloshing impact.

Sloshing is a phenomenon in which a liquid substance contained in a cargo hold flows when a ship or floating structure moves in various sea states. If there is liquid in only a part of the interior of the cargo hold, the wall and the ceiling of the cargo hold will be severely impacted by the sloshing caused by the flow of the liquid, which is called sloshing impact. The sloshing impact not only damages the barrier wall 40 and the corrugated portion 42 but also can be transmitted to the heat insulating panels 20 and 30 to damage the heat insulating panels 20 and 30.

The sloshing phenomenon is necessarily caused by the dynamic movement of the ship during the operation of the ship, and the cargo hold is to be designed to have sufficient strength to withstand the load by sloshing. The barrier ribs 42 are inserted into the receiving grooves 44 to receive the barrier ribs 42 to prevent deformation of the barrier ribs 42 protruding toward the accommodating space, 50 may be provided.

The barrier rib reinforcing unit 50 is filled to fill the space between the receiving groove 44 and the barrier 40 and the material of the barrier rib reinforcing unit 50 to be filled may be varied. However, in the present invention, (20, 30).

The barrier reinforcement unit 50 includes a support portion 51 supported by the receiving groove 44 and a seating portion 52 provided to correspond to the shape of the barrier rib portion 42 and on which the barrier rib portion 42 is seated .

The barrier wall 40 according to the embodiment of the present invention includes the barrier reinforcement unit 50 in the receiving groove 44 to prevent deformation of the barrier ribs 42 and simplify installation and maintenance and reduce the cost . Further, it can be fixed to both side portions of the barrier ribs 42 and thermally deformed together with the barrier ribs 42, thereby relieving the thermal stress of the barrier ribs 40.

1 to 4, the reinforcing panels 21 and 34 are formed with grooves through which both ends of the reinforcing panels 21 and 34 are inserted so that the reinforcing panels 42 can be inserted into the reinforcing panels 21 and 34, The barrier ribs 20 and 30 may be provided as receiving grooves 44 whose ends are closed without being penetrated so that the barrier ribs 42 are inserted or received but have an adiabatic effect.

The barrier rib reinforcing unit 50 is filled in the receiving groove 44 of the heat insulating panels 20 and 30 to support the barrier ribs 42 and the flat surface portion 41 of the barrier wall 40 is bonded to the reinforcing panels 21, 34).

5 is a cross-sectional view showing a state in which a barrier 40 according to another embodiment of the present invention is installed. The structure of the barrier 40 shown in FIG. 5 is mostly the same as the structure of the barrier 40 shown in FIG. 4, and the same parts are denoted by the same reference numerals, and a detailed description thereof will be omitted.

5, another embodiment of the present invention includes a barrier (not shown) enclosing the storage space in which the liquefied gas is received and sealing the insulation panel structure, and having a curved barrier rib 42 toward the insulation panel structure And a barrier reinforcement unit 50 inserted in the receiving groove 44 formed in the thermal insulating panel structure to receive the barrier ribs 42 and the barrier ribs 42 and the barrier ribs 42.

The barrier reinforcement unit 50 includes a support portion 51 supported by the receiving groove 44 and a seating portion 52 provided to correspond to the shape of the barrier rib portion 42 and on which the barrier rib portion 42 is seated .

The barrier reinforcement unit 50 may be made of the same material as the reinforcing panels 21 and 34. [ 4, the barrier rib reinforcing unit 50 is made of the same material as the reinforcing panels 32 and 34, which are relatively harder than the heat insulating panels 20 and 30, so that the barrier ribs 42 may be more effective in improving the rigidity of the barrier ribs 42 and preventing breakage of the barrier wall 40 and the heat insulating panel structure.

4 and 5 are filled with the heat insulating panels 30 and 40 or the reinforcing panels 21 and 34. This is an example only in which the barrier ribs 42 are supported, It can be filled with various kinds of materials which can help reinforcement performance.

6 is a cross-sectional view illustrating a state in which a barrier and a barrier reinforcing member are installed according to another embodiment of the present invention. The structure of the barrier 40 shown in FIG. 6 is mostly the same as the structure of the barrier 40 shown in FIG. 4, and the same parts are denoted by the same reference numerals, and a detailed description thereof will be omitted.

6, the barrier reinforcement unit 50 according to another embodiment of the present invention includes a support portion 51 formed by processing a metal sheet and supported by the receiving groove 44, (52) provided corresponding to the shape of the barrier ribs (42) and on which the barrier ribs (42) are mounted, and a barrier reinforcing member 50a.

In other words, the barrier reinforcement unit 50 according to another embodiment of the present invention is provided with the barrier reinforcement member 50a in which the metal sheet is processed, thereby further securing the surface rigidity of the barrier wall 40. [

The barrier reinforcing member 50a of the present invention is made of a metal material having a strong hardness and a deforming elastic force, but may be made of various materials as long as it plays the same role as a metal material, for example.

7 is a cross-sectional view illustrating a state in which the barrier 40 and the barrier reinforcing member 50 are installed according to another embodiment of the present invention. The structure of the barrier 40 shown in FIG. 7 is substantially the same as the structure of the barrier 40 shown in FIG. 4, and the same parts are denoted by the same reference numerals, and a detailed description thereof will be omitted.

7, the barrier reinforcement unit 50 according to another embodiment of the present invention is formed by processing a metal sheet, and includes a support portion 51 supported by the receiving groove 44, And a seating part (52) provided corresponding to the shape of the wall part (42) and on which the wall folding part (42) is seated. The wall reinforcing member (50a).

Further, the barrier reinforcement unit 50 further includes a filler member 50b which is filled to fill a space portion existing inside the barrier reinforcement member 50a.

The filling member 50b of the present invention is made of the same material as that of the heat insulating panels 20 and 30 for the purpose of improving the heat insulating performance. However, the filling member 50b may be made of various materials such as the same materials as the reinforcing panels 21 and 34 There will be.

8 is a cross-sectional view showing a state in which a barrier 40 and a barrier reinforcing member 50 are installed according to another embodiment of the present invention. The structure of the barrier 40 shown in FIG. 8 is mostly the same as the structure of the barrier 40 shown in FIG. 4, and the same reference numerals are assigned to the same parts, and a detailed description thereof will be omitted.

8, the barrier reinforcement unit 50 according to another embodiment of the present invention is formed by processing a metal sheet, and is formed to correspond to the shape of the barrier ribs 42, And a fixing part 53 which is provided on both sides of the seat part 52 and fixed to the heat insulating panel structure.

The first grooves 54 may be formed on the upper surfaces of the reinforcing panels 21 and 34 so that the fixing portions 52 can be inserted. By inserting the fixing portion 53 into the first groove portion 54, the barrier reinforcement unit 50 can be stably fixed.

A second groove 55 may be formed on the upper surface of the reinforcing panel 32 or 34 to receive the seating portion 52. In other words, since both side portions of the seating portion 52 are accommodated in the second groove portion 55, the upper surface of the reinforcing panel 21, 34 and the upper surface of the seating portion 52 can be flush with each other. The upper surface of the reinforcement panels 21 and 34 and the upper surface of the seat portion 52 are formed to be flush with each other, so that the barrier wall 40 can be easily installed on the upper surface thereof.

9 is a sectional view showing a state in which a barrier 40 according to another embodiment of the present invention is installed. The structure of the barrier 40 shown in Fig. 9 has the same structure as the structure of the barrier 40 shown in Fig. 4, and the same parts are denoted by the same reference numerals, and a detailed description thereof will be omitted.

9, the barrier reinforcement unit 50 according to another embodiment of the present invention is formed by processing a metal sheet, and is formed to correspond to the shape of the barrier ribs 42, And a fixing part 53 which is provided on both sides of the seat part 52 and fixed to the heat insulating panel structure.

The barrier rib reinforcing unit 50 is provided with an engaging member 56 for engaging the inner surface of the receiving groove 44a formed in the reinforcing panel 21 and 34 and forming the third groove 57 into which the fixing portion 53 is inserted, .

That is, by fixing the fixing portion 53 to the third groove portion 57, the barrier reinforcement unit 50 can be stably fixed to the heat insulating panel structure.

As described above, in the liquefied gas holding window according to various embodiments of the present invention, the corrugations 42 for absorbing heat shrinkage and expansion of the kitchen wall 40 directly contacting the cryogenic liquid do not protrude into the storage space, It is possible to withstand the pressure of the cryogenic liquid. Therefore, the risk of breakage of the corrugated portion 42 can be greatly reduced, and the reliability of the cargo hold and cargo barrier 40 can be enhanced.

In addition, the barrier structure of the liquefied gas holding window according to various embodiments of the present invention is provided with the barrier reinforcement unit 50, so that the surface rigidity of the barrier 40 due to the cryogenic liquid material accommodated in the storage space can be secured.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, You will understand. Accordingly, the true scope of the invention should be determined only by the appended claims.

10: outer wall, 11: mastic,
12: stud bolt, 13: nut,
20: lower insulation panel, 21: lower reinforcement panel,
22: through hole, 23: foam plug,
24: flat joint, 30: upper insulating panel,
31: secondary barrier, 32: secondary connection barrier,
33: connecting panel, 34: upper reinforcing panel,
40: a kitchen wall, 41: a flat portion,
42a: first barrier rib portion, 42b: second barrier rib portion,
43: intersection, 44: receiving groove
50: a barrier reinforcement unit, 50a: a barrier reinforcement member,
50b: filling member, 51: supporting portion,
52: seat part, 53: fixing part,
54: first groove portion, 55: second groove portion,
56: coupling member, 57: third groove portion.

Claims (10)

Insulation panel structure;
A barrier wall including a curved barrier rib toward the heat insulating panel structure; And
And a barrier reinforcement unit inserted into a receiving groove formed in the heat insulating panel structure to receive the barrier ribs and to support the barrier ribs,
Wherein the barrier rib reinforcing unit includes a support portion formed by processing a metal sheet and supported by the receiving groove and a seating portion provided corresponding to the shape of the barrier rib portion and on which the barrier rib portion is seated, And a barrier reinforcement member provided on the liquefied gas holding window. The method according to claim 1,
Wherein the heat insulating panel structure comprises a heat insulating panel for insulating the liquefied gas and a reinforcing panel for fixing the barrier on the heat insulating panel,
Wherein the barrier reinforcement unit is made of the same material as the reinforcement panel. The method according to claim 1,
Wherein the barrier reinforcement unit includes a support portion supported by the receiving groove and a seating portion provided corresponding to the shape of the barrier rib portion and on which the barrier rib portion is seated. delete The method according to claim 1,
Wherein the barrier reinforcement unit further comprises a filling member filled to fill a space portion of the barrier reinforcement member, 6. The method of claim 5,
Wherein the heat insulating panel structure comprises a heat insulating panel for insulating the liquefied gas and a reinforcing panel for fixing the barrier on the heat insulating panel,
Wherein the filling member is provided in the same material as the heat insulating panel. Insulation panel structure;
A barrier wall including a curved barrier rib toward the heat insulating panel structure; And
And a barrier reinforcement unit inserted into a receiving groove formed in the heat insulating panel structure to receive the barrier ribs and to support the barrier ribs,
The barrier rib reinforcing unit is formed by machining a metal sheet and has a seating part provided to correspond to the shape of the wall corrugated part and on which the barrier ribs are seated and a fixing part provided on both sides of the seating part to be fixed to the heat- Containment liquefied gas hold. 8. The method of claim 7,
Wherein the heat insulating panel structure comprises a heat insulating panel for insulating the liquefied gas and a reinforcing panel for fixing the barrier on the heat insulating panel,
And a first groove portion into which the fixing portion is inserted is formed on an upper surface of the reinforcing panel. 9. The method of claim 8,
Wherein the upper surface of the reinforcing panel and the upper surface of the seating portion are flush with each other. 8. The method of claim 7,
Wherein the heat insulating panel structure comprises a heat insulating panel for insulating the liquefied gas and a reinforcing panel for fixing the barrier on the heat insulating panel,
Wherein the barrier rib reinforcing unit further comprises an engaging member coupled to an inner surface of the receiving groove formed in the reinforcing panel, the engaging member forming a third groove portion into which the fixing portion is inserted.

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