KR100751697B1 - Insulating structure of cargo containment system with the cfrp and its panel for lng tank - Google Patents

Abstract

An insulation structure of a cargo containing system for an LNG storage tank using a carbon fiber reinforcing polymer is provided to remarkably improve the workability in manufacturing the cargo containing system for an LNG storage tank for storing and transporting LNG. An insulation structure of a cargo containing system for an LNG storage tank using a carbon fiber reinforcing polymer includes secondary insulation plates(5), a fixing unit, secondary walls(6), secondary insulation plate connecting secondary walls(7), a glass fiber paper(9), a primary insulation plates, a primary walls, and a primary insulation plate connecting primary wall. The glass fiber paper contains a resin attached and installed to cover the upper surface section of the secondary wall and the secondary insulation plate connecting secondary wall.

Description

Insulating structure of cargo containment system with the CFRP and its Panel for LNG Tank

1 is a front sectional view of a conventional GTT Mark III type insulation system.

Figure 2a and Figure 2b is an exploded and assembled cross-sectional view of the secondary insulation plate fixed to the hull of the invention heat insulation structure.

Figure 3a and Figure 3b is a disassembled and assembled cross-sectional view of the connection structure and the room temperature hardening type CFRP secondary barrier insulation structure between the secondary insulation panel (CFRP sandwich panel) of the present invention.

4A and 4B are exploded and assembled cross-sectional views of the CFRP secondary barrier insulation structure formed in a concave shape and the connection structure between the CFRP sandwich panel of the present invention.

5A and 5B are partially exploded perspective and assembly cross-sectional views of the present invention showing the connection structure between the secondary insulation plate and the primary insulation plate adhesive method and the primary insulation plate.

6a and 6b are a full exploded and assembled perspective view of the heat insulating structure of the present invention.

Explanation of symbols on the main parts of the drawings

1: hull 2: primary insulation board

3: primary barrier 4: primary barrier for primary insulation board connection

5: secondary insulation plate 6: secondary barrier

7: secondary barrier for secondary insulation plate connection 8: fixing means

9: glass fiber cloth 10: glass fiber

11: mastic 41, 71: arc buffer

51: fixing plate engaging groove 81: bolt

82: nut 83: fixed plate

831 bolt through hole 832 wing part

833 step

The present invention relates to a heat insulation structure of the cargo hold for LNG storage containers using carbon fiber reinforced polymer (CFRP), and more particularly to improve the airtightness of the heat insulation container for the storage and transportation of liquefied gas and workability due to assembly. It is invented to be.

Today, the low temperature liquefaction method is mainly used to store and transport large quantities of substances such as hydrogen, oxygen, and natural gas (i.e., liquefied gas). To this end, in the design of thermal insulation containers for storing and transporting low temperature liquefied gas, The insulation technology that prevents boiling of liquefied gas by heat transfer from the outside and the cryogenic liquefied gas leakage prevention technology for securing the hull's safety are most important.

The current commercial insulation method is a membrane insulation system of GTT in France having a double barrier structure based on the middle barrier structure (US Pat. 484358) of McDonnell Douglas, USA.

Figure 1 shows the structure of the Mark III type insulation system of the French GTT company.

Such a heat insulation system, as shown in Figure 1 is a relatively thick upper thickness of the primary heat insulating plate 2 and the lower secondary heat insulating plate (5) and the stainless steel as compared to the primary heat insulating plate (2) Secondary barrier 6 formed between the primary barrier plate 2 and the secondary insulation plate 5 formed of a steel sheet and formed into a primary barrier 3 and a triplex formed on the upper portion of the primary insulation plate 2. It consists of a double barrier structure.

In addition, a plurality of mastics 11 are disposed at regular intervals between the hull 1 and the secondary heat insulating plate 5, and the secondary heat insulating plate 5 is connected to the hull through a bolt 81 and a nut 82. It is a structure fixed to 1).

In such an insulation system, when the insulation plate is installed on the inner wall of the insulation container, the junction between the primary and secondary insulation plates (2) and (5) is a secondary barrier called triplex for the purpose of ensuring airtightness at the junction of the secondary barrier (6). (6) It consists of a two-stage operation that is bonded to the material, and then connected to the primary insulation plate (2) and the connecting plate 12 of the same material, it takes a lot of time not only work There is a problem that requires considerable attention in construction to ensure airtightness at the car barrier joint.

In addition, the connection portion of the primary heat insulating plate 2 is formed at the end of the primary barrier 3 on one side by forming a simple bent portion 31 at the connection portion of the primary heat insulating plate 2 formed of stainless steel sheet ( 31) is configured to cover a part of the primary barrier (3) of the other side, when the flow occurs between the primary insulation plate (2) when the connection of the primary barrier (3) is not elastically displaced between them There may be a gap.

The present invention has been devised to solve such a conventional problem, the thermal expansion coefficient (CTE) is only 1/8 of INVAR, 1/115 of aluminum, so that the thermal deformation and thermal stress is small and the strength is excellent carbon By forming and installing the first and second barriers using fiber reinforced polymer (CFRP), it is possible to significantly improve workability in manufacturing cargo holds for LNG storage containers for storing and transporting liquefied gas. It is an object of the present invention to provide an insulating structure of a cargo hold for an LNG storage container using carbon fiber reinforced polymer (CFRP) which can improve the airtightness at the secondary barrier joint.

Insulating structure of the present invention for achieving the above object, is provided on the upper surface of the hull with a plurality of rod-shaped mastic which is provided with a fixed plate engaging groove on the bottom of both sides and installed at a predetermined interval therebetween through the fixing means A plurality of secondary insulation plates fixedly installed on the hull to provide secondary insulation; A bolt having a lower end fixed to the hull, a fixing plate having a bolt through hole at the center thereof, and a fixing plate coupled to the engaging grooves at both ends at the bottom of the secondary insulation plate adjacent to each other, and being fixed to the bolt. Fixing means composed of a nut for fixing two secondary insulation plates adjacent to each other to the hull; A secondary barrier having a form in which the area thereof decreases toward an upper portion and attached to the upper surface of the secondary insulating plate in a form of being stacked over several layers; The area is increased toward the upper portion and has a configuration in which an arc-shaped buffer portion for buffering function is formed in the gap between the secondary insulation plates in the center, and is stacked over several layers at the connection portions of the secondary insulation plates adjacent to each other. A secondary barrier for attaching secondary insulation plates to be attached to each other to interconnect the secondary insulation plates; A glass fiber fabric paper impregnated with resin (Resin), which is attached and installed to cover the upper surface of the secondary barrier and the secondary barrier for connecting the secondary insulation plate; A plurality of primary insulation plates installed on an upper surface of the fiberglass fabric paper to insulate primary insulation; A primary barrier having a form in which the area thereof decreases toward an upper portion and attached to the upper surface of the primary insulation board in a manner of being stacked over several layers; The area is larger toward the top, and has a configuration in which an arc-shaped buffer portion is formed in the center to perform a buffer function in the gap between the primary insulation plates, and is stacked over several layers at the connection portions of the primary insulation plates adjacent to each other. Characterized in that consisting of; the primary barrier for attaching the primary insulation plate is installed in the form of interconnecting the primary insulation plates.

In addition, the gap formed in the vertical direction between the primary and secondary insulation plates is characterized in that the glass fiber is added as needed.

" 형상을 갖도록 철판을 절곡 형성하여, 양측 날개부는 서로 인접한 2차 단열판의 저부 걸림홈에 걸려지고 하방부를 향해 절곡 형성된 단차부는 상기 2차 단열판의 저면 양측부 사이에 끼워져 걸려지도록 한 것을 특징으로 한다.At this time, the fixing plate of the fixing means has a longitudinal section "

“Bending the iron plate to have a shape, the two wing parts are caught by the bottom locking grooves of the secondary insulation boards adjacent to each other, and the stepped portion bent toward the lower portion is sandwiched between the two sides of the bottom surface of the secondary insulation board. .

In addition, the primary and secondary barriers and the primary and secondary barriers for connecting the primary and secondary insulation plates are molded of carbon fiber reinforced polymer (CFRP), but for connecting the primary and secondary insulation plates having a band shape 1 The arc buffers of the primary and secondary barriers are formed by hardening a carbon fiber reinforced polymer (CFRP) to a certain thickness at room temperature so as to fit into the gaps of the primary and secondary insulation plates, or the arc buffers are formed between two thick wings. It characterized in that the molded by a carbon fiber reinforced polymer (CFRP) to have a concave shape.

In addition, the secondary barrier for connecting the secondary insulation plate is installed to have a rectangular thin plate shape at the intersection of the secondary connecting plates which are installed adjacent to each other, the arc-shaped buffer portion is formed to have a "+" shape. It is done.

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

Figure 2a and Figure 2b is a disassembled and assembled cross-sectional view of the secondary insulating plate is fixed to the hull of the heat insulation structure of the present invention, Figures 3a and 3b is a connection between the secondary heat insulating plate (CFRP sandwich panel) and room temperature curing type 4 is a cross-sectional view illustrating the disassembly and assembly of the CFRP secondary barrier insulation structure, and FIGS. 4A and 4B illustrate the decomposition of the CFRP secondary barrier insulation structure formed into a concave shape and a connection structure between the CFRP sandwich panels of the present invention. The assembly cross section is shown.

In addition, Figures 5a and 5b is a partial exploded perspective view and assembling cross-sectional view of the present invention showing the connection structure between the secondary insulation plate and the primary insulation plate adhesive method and the primary insulation plate, Figure 6a and 6b is a view of the insulation structure of the present invention The whole disassembled and assembled perspective view is shown.

According to this, the heat insulation structure of the present invention is provided on the upper surface of the hull 1 with a plurality of rod-shaped mastics 11 provided with fixed plate locking grooves 51 at both side bottoms and provided at a predetermined interval therebetween. Several secondary heat insulating plates 5 fixedly installed on the hull 1 through fixing means 8 to insulate secondary heat;

Both ends of the bolt 81 having a lower end fixed to the hull 1 and a bolt through hole 831 at the center thereof are caught by the locking groove 51 at the bottom of the secondary insulation plate 5 adjacent to each other. Nut 82 to be screwed to the fixing plate 83 and the bolt 81 coupled in a losing form so that one fixing plate 83 fixes two secondary insulation plates 5 adjacent to each other to the hull 1. Fixing means (8) consisting of;

A secondary barrier (6) attached to the upper surface of the secondary heat insulating plate (5) in a form in which the area thereof decreases toward the upper side and stacked in several layers;

The area has a band shape that increases toward the upper portion, and has a configuration in which an arc-shaped buffer portion 71 is formed to perform a buffer function in a gap between the secondary insulation plates 5 in the center thereof and adjacent to each other. A secondary barrier (7) for connecting a secondary insulation plate (5) to be attached to the secondary barrier (6) in the form of being stacked in several layers with the secondary barrier (6) to interconnect the secondary insulation plates (5);

A resin-impregnated glass fiber fabric paper (9) attached and installed in such a manner as to cover an upper surface of the secondary barrier (6) and the secondary barrier (7) for connecting the secondary insulation plate;

A plurality of primary heat insulating plates 2 installed on the upper surface of the glass fiber paper 9 to insulate primary heat;

A primary barrier (3) attached to the upper surface of the primary heat insulating plate (2) in a form of being laminated over several layers, the area of which decreases toward an upper portion thereof;

The area has a band shape that increases toward the upper portion, and has a configuration in which a circular buffer portion 41 is formed in the center to perform a buffer function in the gap between the primary insulation plates 2 and adjacent to each other. (1) at the connection portion of the primary barrier (3) and the primary barrier (4) for connecting the primary insulation plate to be installed in the form of being stacked in several layers with the primary barrier plate (2) to interconnect with each other; Characterized in that configured.

In addition, the gap formed in the vertical direction between the primary and secondary insulating plates (2) (5) is characterized in that the glass fiber 10 is additionally installed as necessary.

" 형상을 갖도록 철판을 절곡 형성하여, 양측 날개부(832)는 서로 인접한 2차 단열판(5)의 저부 걸림홈(51)에 걸려지고 하방부를 향해 절곡 형성된 단차부(833)는 상기 2차 단열판(5)의 저면 양측부 사이에 끼워져 걸려지도록 한 것을 특징으로 한다.At this time, the fixing plate 83 of the fixing means 8 is a longitudinal section "

The bent plate is formed to have a shape, and both wing parts 832 are caught by the bottom locking groove 51 of the secondary heat insulating plate 5 adjacent to each other, and the stepped part 833 formed to be bent downward is the secondary heat insulating plate. It is characterized in that it is sandwiched between both sides of the bottom of (5).

In addition, the primary and secondary barriers (3) (6) and the primary and secondary barriers (4) (7) for connecting the primary and secondary insulation plates are molded of carbon fiber reinforced polymer (CFRP), Arc-shaped buffer portions 41 and 71 of the primary and secondary barriers 4 and 7 for connecting the primary and secondary insulation plates having the primary and secondary insulation plates 2 as shown in FIGS. 3A and 3B. It is formed by curing the carbon fiber reinforced polymer (CFRP) to a certain thickness at room temperature so as to fit in the gap of (5), or both sides of the arc buffer portion 41, 71 is thick as shown in Figures 4a and 4b. It is characterized in that it is molded from a carbon fiber reinforced polymer (CFRP) to have a concave shape between the wings.

In addition, the secondary barrier (7) for connecting the secondary insulation plate is installed to have a rectangular thin plate shape as shown in FIG. "It is characterized in that it was formed to have a shape.

Referring to the effect of the present invention is configured as described above is as follows.

First, the heat insulation structure of the present invention, several secondary heat insulating plate (5), the fixing means (8), secondary barrier (6), secondary heat insulating plate for fixing the secondary heat insulating plate (5) to the hull (1) Consisting of a secondary barrier (7) for connection, glass fiber fabric impregnated with resin (9), several primary insulation plates (2), primary barriers (3) and primary barriers for connecting primary insulation plates (4) As a main technical component, an additional technical component is provided in which the glass fiber 10 is provided in the gap between the primary and secondary insulation plates 2 and 5 as necessary.

At this time, the primary and secondary insulation plates (2) and (5) for primary and secondary insulation, unlike the conventional secondary insulation plates formed of wood or heat insulating material and triplex, carbon fiber reinforced polymer (CFRP) as a send position structure It is possible to improve the workability by forming the primary and secondary insulation plates (2) (5), the primary and secondary by laminating and bonding the connection between the primary and secondary insulating plates (2) (5) using a room temperature hardening type CFRP resin of the same material Barriers (3) and (6) are used, and the connections between the insulation plates use primary and secondary barriers (4) and (7) for connecting the primary and secondary insulation plates using resin, The concave shape is naturally formed by the roll operation and the CFRP self weight, and the barrier structure capable of absorbing thermal expansion and contraction can significantly improve workability and airtightness.

On the other hand, in the above, the shape of the secondary heat insulating plate 5 is generally the same as the shape of the conventional secondary heat insulating plate, but only the other so that both ends of the fixing plate 83 of the fixing means 8, respectively, on both sides of the bottom It has a configuration further provided with a fixed plate locking groove (51).

Of course, the secondary heat insulating plate 5 is disposed on the upper surface of the several rod-shaped mastic 11 which is installed at regular intervals as in the conventional secondary heat insulating plate, and is mounted on the hull 1 through the fixing means 8. It is fixed to the installation.

The fixing means 8 is provided with a bolt 81 having a lower end fixed to the hull 1 and a bolt through hole 831 at the center thereof, unlike the conventional structure consisting of only a bolt and a nut, and the secondary insulating plate adjacent to each other. At the bottom of (5), two secondary heat insulating plates having both ends fixed to the fixing plate 83 and the bolt 81 coupled to each other in such a manner as to be caught in the engaging groove 51, and one fixing plate 83 is adjacent to each other ( 5) by means of a nut 82 which fixes the hull 1 to the hull 1, the fixing means 8 itself is installed only between the secondary insulation plates 5, so that the intermediate middle of the secondary insulation plate 5 has several bolts. Compared to the conventional fixing only with the nut and the nut can be reduced by the number of uses of the bolt and nut.

At this time, the fixing plate 83 of the fixing means 8 may be configured to have a square plate shape, in which case both ends of the fixing plate 83 are caught by the catching grooves 51 of the secondary insulation plate 5. When the nut 82 is fastened to the bolt 81 after being coupled to the bolt 81 welded and fixed to (1), the fixing plate 83 may not only be partially rotated, but the fixing plate 83 itself may simply be two. There is a fear that the secondary insulation boards 5 adjacent to each other may flow through the gap between the secondary insulation boards 5 by external impact by only performing the function of pressing the vehicle insulation boards 5 toward the hull 1 side.

" 형상을 갖도록 절곡 형성하여, 단차부(833)를 사이에 두고 양측으로 형성된 날개부(832)는 서로 인접한 2차 단열판(5)의 저부 걸림홈(51)에 걸려지도록 하고, 중앙에서 하방부를 향해 절곡 형성된 단차부(833)는 상기 2차 단열판(5)의 저면 양측부 사이에 끼워져 걸려지도록 함으로써 볼트(81)에 너트(82)를 체결시켜 고정판(83)을 통해 상기 2차 단열판(5)들을 선체(1) 상에 고정할 때 상기 2차 단열판(5) 및 고정판(83)의 위치가 정확하고 쉽게 확보된다.Therefore, in the present invention, the longitudinal section of the fixing plate 83 made of iron plate is "

And bent to have a shape, the wing portions 832 formed on both sides with the stepped portion 833 interposed therebetween are caught by the bottom locking grooves 51 of the secondary insulation plates 5 adjacent to each other. Stepped portion 833 formed to be bent toward the hook between the both sides of the bottom surface of the secondary heat insulating plate 5 to fasten the nut 82 to the bolt 81 to the secondary heat insulating plate 5 through the fixing plate 83 ), The position of the secondary heat insulating plate 5 and the fixing plate 83 is accurately and easily secured on the hull 1.

In addition, the secondary barrier 6 has a form in which the area thereof decreases toward the upper side, and is attached to the upper surface of the secondary insulation plate 5 in a manner of being laminated over several layers.

In addition, the secondary barrier 7 for connecting the secondary insulation plate 5 which interconnects the secondary insulation plates 5 has a band shape in which the area thereof becomes larger toward the upper side as opposed to the secondary barrier 6 and the center 2 With the secondary barrier (6) at the connection portion of the secondary insulating plate (5) adjacent to each other having a configuration in which the arc-shaped buffer portion 71 is formed in the gap between the primary insulating plates (5) It is attached in a form that is stacked over the layers.

Accordingly, the upper surface portion of the secondary insulation plate 5 is provided with several secondary barriers 6 having a shape in which the area thereof becomes smaller toward the upper portion, and an arc-shaped buffer portion 71 in the center thereof, and the area thereof becomes higher toward the upper portion. Some of the contact portions of the secondary barriers 7 for connecting the secondary insulation boards which are attached to be stacked in a plurality of layers with overlapping bands are attached to each other so that no gap is generated between them. Airtightness is maintained by actively responding to corresponding thermal expansion and contraction changes.

In addition, the upper surface portion of the secondary barrier (6) and the secondary barrier (7) for connecting the secondary insulation plate is attached to the glass fiber fabric paper (9) impregnated with resin, so that the airtightness can be secured more firmly. have.

On the other hand, the primary barrier (3) which is installed in the upper surface of the glass fiber fabric paper (9) and laminated in several layers on the upper surface of several primary heat insulating plates (2) for primary heat insulation, and the primary heat insulating plate The primary barrier 4 for connecting the primary insulating plate to interconnect (2) also has the same shape and structure as the above-described secondary barrier 6 and the secondary barrier 7 for connecting the secondary insulating plate.

At this time, the primary and secondary barriers 3 and 6 and the primary and secondary barriers 4 and 7 for connecting the primary and secondary insulation plates are formed of carbon fiber reinforced polymer (CFRP) as described above. Molding with CFRP reduces the weight and thickness of the primary and secondary barriers 3 and 6 and the primary and secondary barriers 4 and 7 for connecting the primary and secondary insulation plates. It can be excellent in low-temperature physical properties can significantly improve the workability according to their installation.

In addition, two methods for forming arc-shaped buffer parts 41 and 71 of the primary and secondary barriers 4 and 7 for connecting the primary and secondary insulation plates having a band shape may be proposed. First, the primary and secondary barriers (4) and (7) for connecting the primary and secondary insulation plates are laminated and attached to the upper surfaces of the connection portions of the primary insulation plates (2) and the secondary insulation plates (5). Hardening at room temperature may cause the arc-shaped buffer parts 41 and 71 to be naturally formed as shown in FIGS. 3A and 3B by the self-weight of CFRP itself, and secondly, for connecting the primary and secondary insulation plates. The primary and secondary barriers (4) and (7) are laminated and attached to the upper surface of the connection portion of the primary insulation plate (2) and the secondary insulation plate (5), and the connection portion of the primary and secondary insulation plates (2) (5). Rolling is performed on the primary and secondary barriers (4) and (7) for connecting the primary and secondary insulation plates located on the upper surface of the gap, and the lower portions are formed between the two thick wings as shown in FIGS. 4A and 4B. Towards may also be formed so that the concave-arc-shaped cushioning part (41, 71).

When the primary and secondary barriers 4 and 7 for connecting the primary and secondary insulation plates composed of CFRP are laminated and attached to the upper surface of the connecting portion of the primary insulation plate 2 and the secondary insulation plate 5 as described above. The arc buffers 41 and 71 are naturally formed by the weight of the CFRP itself through the curing at room temperature, or the concave arc buffers 41 and 71 are formed by the roll operation. By having a barrier structure capable of absorbing thermal expansion and contraction can improve the workability and airtightness significantly.

On the other hand, by using the secondary barrier 7 for connecting the secondary insulation plate having a strip shape as it is to connect the gap between the secondary insulation plates 5 which are installed adjacent to each other for connecting the secondary insulation plate at the intersection point. The secondary barriers 7 overlap each other and are twice as thick as other gaps.

Therefore, in the present invention, at the intersections of the secondary insulation plates 5 which are installed adjacent to each other, a rectangular thin plate-shaped secondary insulation plate connection is formed such that the arc-shaped buffer portion 71 has a “+” shape as shown in FIG. 4A. Secondary barriers 7 were formed separately, stacked and attached.

Of course, although not shown, the same applies to the primary barrier 4 for connecting the primary insulation plate.

5a and 5b are structural diagrams showing the bonding method of the secondary heat insulating plate 5 and the primary heat insulating plate 2 and the connection method between the primary and secondary heat insulating plates 2 and 5, which is a CFRP barrier. The secondary insulation barrier is sealed by the secondary barrier 6 and the secondary insulation plate 6 and the secondary barrier 6, and the secondary barrier 6 and the secondary insulation plate 6 are sealed. And by bonding the resin-impregnated glass fiber fabric paper 9 between the primary insulating plate 2, which is a PUF insulating material, the adhesion reliability is increased by increasing the adhesive cross-section.

In addition, the primary insulation barrier consisting of connecting the primary barrier 3 and the primary insulation plate and the primary barrier 3 also uses CFRP, so that no other SUS or metal is used, and the CFRP itself is used for other metals. Compared with the excellent low-temperature thermal expansion coefficient, the number of corrugated structures for thermal expansion and shrinkage absorption is reduced, and the installation workability of the primary insulation board 2 used is greatly improved.

In addition, the structural arrangement of the present invention can absorb the thermal expansion and contraction of the primary barrier by arranging the insulating plates alternately, such as brick stacking, to secure the space between the primary insulating plates (2) unlike the conventional.

Figure 6a and 6b is a perspective view of the entire disassembly and assembly of the heat insulating structure of the present invention, using the CFRP itself as a heat insulating barrier, between the insulation and the heat insulating material and between the primary and secondary heat insulating material of the member used as It can drastically reduce water and work man-hours, and also increase the volume significantly because of the use of thin CFRP instead of wood and metal as insulation.

Although the above-described embodiments have been described with respect to the most preferred embodiments of the present invention, it is not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications can be made without departing from the technical spirit of the present invention.

As described above, according to the thermal insulation structure of the present invention, the storage of the liquefied gas by forming and installing the first and second barriers using carbon fiber reinforced polymer (CFRP) having low thermal deformation and thermal stress and excellent strength And in the manufacture of cargo storage for LNG storage containers for transport can greatly improve the workability, as well as improve the airtightness at the primary and secondary barrier joints, and can greatly improve the reliability of the product itself is very useful It is an invention.

Claims (7)

Secondary insulation boards having fixing plate locking grooves on both sides of the bottom and arranged on the upper surface of the hull with rod-shaped mastic installed at regular intervals therebetween and fixedly installed on the hull through fixing means to perform secondary insulation. With; A bolt having a lower end fixed to the hull, a fixing plate having a bolt through hole at the center thereof, and a fixing plate coupled to the engaging grooves at both ends at the bottom of the secondary insulation plate adjacent to each other, and being fixed to the bolt. Fixing means composed of a nut for fixing two secondary insulation plates adjacent to each other to the hull; Secondary barriers are attached to the upper surface of the secondary heat insulating plate in a form that the area is reduced toward the upper portion is laminated; The area is increased toward the top, and has a configuration in which an arc-shaped buffer portion for buffering function is formed in the gap between the secondary insulation plates, and attached in the form of being laminated at the connection portions of the secondary insulation plates adjacent to each other. Secondary barriers installed to connect secondary insulation plates to interconnect secondary insulation plates; A glass fiber fabric paper impregnated with resin (Resin), which is attached and installed to cover the upper surface of the secondary barrier and the secondary barrier for connecting the secondary insulation plate; Primary insulation plates installed on the upper surface portion of the glass fiber fabric paper to perform primary insulation; Primary barriers having a form in which the area thereof decreases toward an upper portion thereof and attached to the upper surface of the primary insulating plate in a stacked manner; The area is increased toward the upper portion and has a configuration in which an arc-shaped buffer portion for buffering function is formed in the gap between the primary insulation plates and attached in the form of being laminated at the connection portions of the primary insulation plates adjacent to each other. Insulation structure of the cargo hold for LNG storage container using a carbon fiber reinforced polymer (CFRP), characterized in that consisting of; primary barrier for connecting the primary insulation plate is installed to interconnect the primary insulation plates. The method according to claim 1, Insulation structure of the cargo hold for LNG storage container using a carbon fiber reinforced polymer (CFRP), characterized in that the glass fiber is added to the gap formed between the primary and secondary insulation plates. The method according to claim 1, The fixing plate of the fixing means has a longitudinal section "

"Bent into a steel plate to have a shape, so that the wings formed on both sides with the stepped portion intervened in the bottom engaging groove of the adjacent secondary insulation plate, and the stepped portion bent toward the lower portion from the center, both sides of the bottom surface of the secondary insulation plate Insulating structure of cargo hold for LNG storage container using carbon fiber reinforced polymer (CFRP), characterized in that sandwiched between. The method according to claim 1, The primary and secondary barriers for connecting the primary and secondary barriers and the primary and secondary insulation plates are for LNG storage containers using carbon fiber reinforced polymers (CFRP), characterized in that formed from carbon fiber reinforced polymers (CFRP). Insulation structure of cargo hold. The method according to claim 4, Arc-shaped buffer portion of the primary or secondary barrier for connecting the primary or secondary insulation plate Primary for connecting the primary or secondary insulation plate made of carbon fiber reinforced polymer (CFRP) on the upper surface of the connection portion of the primary insulation plate or secondary insulation plate Alternatively, the insulation of the cargo hold for LNG storage containers using carbon fiber reinforced polymer (CFRP), which is formed by sagging toward the lower portion naturally by the weight of CFRP itself in the process of laminating, attaching and installing the secondary barrier at room temperature. rescue. The method according to claim 4, Arc-shaped buffer portion of the primary or secondary barrier for connecting the primary or secondary insulation plate primary for connecting the primary or secondary insulation plate made of carbon fiber reinforced polymer (CFRP) on the upper surface of the connection portion of the primary insulation plate or secondary insulation plate Alternatively, by stacking and attaching a secondary barrier, and performing a roll operation on the primary and secondary barriers for connecting the primary and secondary insulation plates located on the upper surface of the gap between the primary and secondary insulation plates, both sides are thick. An insulating structure of a cargo hold for an LNG storage container using a carbon fiber reinforced polymer (CFRP), characterized in that it is formed concave downward between the wings. The method according to claim 1, The secondary barrier for connecting the secondary insulation plate installed at the intersection of the secondary connecting plates which are installed adjacent to each other is formed to have a rectangular thin plate shape, the arc-shaped buffer portion is formed to have a "+" shape Insulation structure of cargo hold for LNG storage container using carbon fiber reinforced polymer (CFRP).

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