KR20180117455A - Composite laminated insulation and structural membrane, and method for manufacturing the same - Google Patents

Abstract

The present invention relates to a composite laminated insulation structural material and a method for manufacturing the same. The composite laminated insulation structural material includes: an insulator mounted between a lower plate and an upper plate of a metallic material; and elastomer filling a space between the lower plate and the insulator and a space between the upper plate and the insulator, thereby significantly improving durability and insulation performance by preventing outflow of gas from the insulator and inflow of outdoor air, and easily applying irregular type insulators, such as gas, liquid and gel type insulators, which were difficult to use conventionally. Moreover, the present invention can be applied to the roof of a building, a wall body and a floor structure, a hull structure, an LPG vessel baggage rack, a piping structure requiring insulation, and so on for general use, and does not require additional insulation construction or structural construction since both an insulation material function and a structural material function are performed when being applied and installed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a composite laminate heat insulating structural member and a method of manufacturing the composite laminate heat insulating structural member,

The present invention relates to a composite laminate insulation material and a method for manufacturing the composite laminate insulation material. More specifically, the present invention relates to a laminate insulation material for roof, wall and bottom structure, hull structure, LPG cargo hold tank structure, The present invention also relates to a composite laminate heat insulating structural member and a method for manufacturing the composite laminate heat insulating structural member which do not require separate insulation construction or construction because the insulation function and the structural member function are implemented together.

In general, composite laminate structural members are manufactured by injecting an elastomer into a closed metal box, which is used as a structural material for replacing iron structural members in concrete structures and shipbuilding buildings.

Patent Publication No. 10-0742033 discloses a conventional composite laminate structural member.

Figure 1 is a side cross-sectional view of a different type of conventional composite laminate structure and Figure 2 is a longitudinal section of a conventional composite laminate structure of the same type.

As shown in FIGS. 1 and 2, a conventional composite laminate structure comprises a first metal layer 1 having a first inner surface and a first outer surface; A second metal layer (2) having a second inner surface and a second outer surface and spaced apart from the first metal layer; A foam 10 positioned between the first inner surface and the second inner surface; And an intermediate layer 20 which is located in a space between the first inner surface and the second inner surface that is not occupied by the foam 10 and is made of an elastomer adhered to the first inner surface and the second inner surface. Wherein the elastomer refers to a plastic or polymer material.

The space not occupied by the foam 10 is filled with the intermediate layer 20, which is an elastomer.

The foam 10 comprises several subsections 11 interconnected by an interconnect 12.

The foam 10 may be made of a metal layer 1, 2, or any kind of lightweight foaming agent that does not react with the elastomer, for example a polyurethane (PU) foam. The foam is a polypropylene semi-rigid foam having a density greater than 20 kg / m < ³ >. The intermediate layer 20 uses an elastomer to support a significantly greater load than the magnetic weight.

However, the conventional composite laminated structural member has the following problems.

First, the conventional composite laminated structural member is a structural member manufactured considering only the load and the impact, and thus can not be used as a heat insulating material for insulation. That is, since the first metal layer 1 and the second metal layer 2 constituting the metal box are adhesively connected to the intermediate layer 20 of the elastomer having a relatively high density, Occurs on the front surface of the second metal layer 2. In other words, since the conventional composite laminated structural member has a very high thermal conductivity of the first metal layer 1 and the second metal layer 2 due to its structure, the function as a heat insulating material is not limited to the intermediate layer 20, which is an elastomer, . However, the thermal conductivity (k-value) of a commonly used elastomer is about 0.1774 W / mK (at 20 ° C), which is not even compared with insulation such as aerogels or vacuum insulation, and is generally the most widely used organic and inorganic The heat insulating performance is significantly lower than that of the heat insulating material (thermal conductivity 0.030 to 0.045 W / mK), which is not suitable for use as a heat insulating material.

Secondly, since the height and the width of the foam 10, the inter connector 12 and the subsection 11 are irregularly formed in the conventional composite laminated structural member, the injection process is very difficult and the injection time is long when the polyurethane foam is injected. A dead zone is generated in the space of the foam 10, the inter connector 12 and the subsection 11 to cause an unintended cavity, thereby deteriorating the rigidity of the composite laminate structural member itself there is a problem.

Third, the conventional composite laminated structural member has a structure in which the foam 10 is interconnected with the subsection 11 by the inter connector 12, and the height of the foam 10, the inter connector 12, and the subsection 11 And the width is irregular, it is not suitable as a structural material requiring uniform shock absorption.

In other words, the polyurethane (PU) foam of the foam 10 is advantageous from the viewpoint of production cost reduction because it is a relatively inexpensive material than the elastomer of the intermediate layer 20, but as shown in FIG. 1, Since the height and the width of the foam 10, the interconnector 12 and the subsection 11 are irregularly formed when a load applied to the metal layer 1 is transferred to the second metal layer 2, The impact absorption loads at the respective positions (a), (b), (c) and (d) are different from each other to cause imbalance of shock absorption and fatigue load, , Causing fatigue cracks.

On the other hand, most conventional heat insulating materials have no characteristics as a structural material and a finishing material. Therefore, construction of basic structural materials such as concrete, wood, and iron structure should be preceded, and construction work and additional finishing work which require care for protection of insulation and confidentiality are required.

Typical insulation materials with a thermal conductivity of less than 0.010 W / mK are airgel insulation and vacuum insulation. These thermal insulation materials can be expected to have the same thermal insulation effect even with much thinner thickness than conventional organic and inorganic thermal insulation materials due to low thermal conductivity. However, since the function as a structural material is insignificant, it is necessary to apply a heat insulation material which requires a special attention after the construction material is first applied. Most of the heat insulation materials require additional finishing materials for protecting the insulation material .

Particularly, in the case of vacuum insulation, it is very vulnerable to impact, and if a little airtightness is broken, the insulation performance due to continuous gas inflow / outflow may be considerably deteriorated, so careful attention should be paid to construction and finishing work. There are a number of limitations that can not be tolerated.

Also, in the case of a vacuum insulation material, it is very important to maintain the internal vacuum of the insulation material itself. However, the thin sheath of vacuum insulation is fundamentally vulnerable to external impacts. In fact, due to the impact generated during the construction, the thermal insulation material frequently breaks, and the insulation performance may be significantly deteriorated due to gas inflow / outflow.

In addition, there is a fundamental problem in terms of durability and performance because continuous gas inflow / outflow can occur through fine gaps.

In addition, existing insulation is limited to solid form because it is difficult to use as an amorphous insulation material in the form of liquid, gel or gas for the purpose of transportation, installation and maintenance.

Korean Patent Publication No. 10-2002-0049020

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a heat insulating material, The gas outflow and the inflow of outside air are fundamentally cut off, and the durability and the heat insulation performance can be greatly improved, and it is possible to improve the durability and the heat insulation performance of the roof, wall and bottom structure, hull structure, LPG cargo hold tank structure, (General purpose), as well as the insulation function and the structural function are implemented together in the installation, it is not necessary to construct a separate insulation construction or construction, and it is also possible to use an unstructured type insulation (gas, liquid, gel type insulation ) Composite laminate insulation material and its composite laminate insulation material And a manufacturing method thereof.

In order to achieve the above object, there is provided a composite laminate insulation material and a method for manufacturing the composite laminate insulation material.

The composite laminate heat insulating structural member according to the first embodiment of the present invention comprises a lower plate horizontally positioned on the lower side; A frame frame installed at an edge of an upper surface of the lower plate; An upper plate positioned horizontally above the lower plate and having both ends fixed to the upper surface of the frame; A heat insulating material disposed between the bottom plate and the top plate; A lower elastomer filled in a space between the lower plate and the heat insulating material; And an upper elastomer filled in a space between the top plate and the heat insulating material; .

The heat insulating material includes, for example, vacuum insulating material, aerogels and the like.

The heat insulating material may be a monolithic structure or a composite structure composed of a plurality of unit bodies.

The lower plate and the upper plate may be made of a metal material.

The lower elastomer and the upper elastomer may be formed either individually or integrally,

When the lower elastomer and the upper elastomer are formed separately, at least one or more of the density or the component of the lower elastomer and the upper elastomer may be different.

The composite laminate insulation material according to the first embodiment of the present invention includes: a first spacer for maintaining a space between the bottom plate and the insulation; And a second spacer for maintaining a space between the top plate and the heat insulating material; .

In order to maintain a space between the lower plate and the heat insulating material and a space between the upper plate and the heat insulating material, a step for supporting the end of the heat insulating material may be formed on the upper surface of the frame.

The composite laminate heat insulating structural member according to the second embodiment of the present invention includes a lower plate horizontally positioned on the lower side; A rim frame provided at a rim of an upper surface of the lower plate; An upper plate positioned horizontally above the lower plate and having both ends fixed to the upper surface of the frame frame; A heat insulating material provided between the bottom plate and the top plate; A lower elastomer charged in a space between the lower plate and the heat insulating material; And an upper elastomer filling the space between the top plate and the heat insulating material, wherein the rim frame comprises a first rim frame and a second rim frame engaging the first rim frame and facing each other.

The first frame frame and the second frame frame have a " C "cross-sectional shape, and support grooves for inserting both ends of the heat insulating material are formed.

The first frame frame and the second frame frame include a lower horizontal member positioned between the bottom plate and the heat insulating material; An upper horizontal member positioned between the top plate and the heat insulating material; And a vertical member connecting the lower horizontal member and the upper horizontal member.

And both ends of the vertical member may be welded to the ends of the lower horizontal member and the upper horizontal member.

Further, the composite laminate heat insulating structural member according to the third embodiment of the present invention includes a lower plate horizontally positioned on the lower side; A frame frame installed at an edge of an upper surface of the lower plate; An upper plate positioned horizontally above the lower plate and having both ends fixed to the upper surface of the frame; A heat insulating material disposed between the bottom plate and the top plate; An upper and a lower void core installed in a space between the lower plate and the heat insulating material, and a space between the upper plate and the heat insulating material; A lower elastomer filled in a space between the lower plate and the heat insulating material; And an upper elastomer filled in a space between the top plate and the heat insulating material; .

Meanwhile, a method of manufacturing a composite laminated insulation material according to a first embodiment of the present invention includes the steps of: horizontally installing a lower plate formed of a plate material; Providing a rim frame on a rim of an upper surface of the lower plate; Installing a heat insulating material horizontally in a space between the bottom plate and the top plate; Fixing both ends of the upper plate to the upper surface of the frame so as to be horizontally positioned on the upper side of the lower plate; Filling a space between the lower plate and the heat insulating material with a lower elastomer and filling a space between the upper plate and the heat insulating material with an upper elastomer; .

According to a third aspect of the present invention, there is provided a method of manufacturing a composite laminate heat insulating structural member, comprising: horizontally installing a lower plate formed of a plate member; Installing a rim frame on an upper surface rim of the lower plate; Installing a lower void core on the upper surface of the lower plate; Installing a heat insulating material by elastically inserting the end portion of the heat insulating material into the support groove of the frame frame; Providing an upper void core on an upper surface of the heat insulating material; Fixing both ends of the upper plate to the upper surface of the frame so as to be horizontally positioned above the upper void core; And filling the space between the bottom plate and the heat insulating material with the lower elastomer and filling the space between the top plate and the heat insulating material with the upper elastomer.

As described above, the application fields and effects of the present invention are as follows.

1) It can be applied to roof, wall and floor structure of a building.

When the composite laminate heat insulating structural member of the present invention is installed, since the heat insulating function and the structural function are implemented together, a separate heat insulating construction is not required. In the case of a passive house requiring a complete shut-off of heat-bridging, the work may be completed by locally insulating only the joint area of the metal frame frame, which may cause thermal bridging as a subsequent operation.

2) It can be applied to ships.

(HFO) which is used as a fuel for ship is very high viscosity at room temperature. Therefore, it is necessary to have a device that smoothes fluidity by raising the temperature of medium fuel oil Do. For this purpose, a variety of heating equipment is installed in the fuel oil tank, and as a result, the temperature inside the tank can be increased up to about 100 ° C. Since all of the fuel oil tanks of existing vessels are made of steel only, the heat bridging phenomenon occurs on all the surfaces constituting the tank, and the heating effect is very poor.

In addition, it often happens that a zone with a significantly different design temperature (for example, cargo holds that require refrigeration) is placed near a medium fuel oil tank. In this case, insulation outside the tank is required, but the insulation is exposed as it is due to the nature of the ship structure. For example, in the case of a container line, this arrangement frequently occurs. In this case, the insulation of the container may be damaged during the unloading process, and various maintenance problems due to the severe marine environment may occur.

In addition, in the case of chemical carriers, it is common to have a tank structure separated to carry various cargoes at the same time. In some cases, different design temperatures are maintained for each tank depending on the chemical characteristics. However, it may not be possible to maintain the temperature of each tank due to the thermal bridge phenomenon of the metal tank structure. In this case, a cofferdam or an empty tank may be inevitably disposed between the tanks.

When the composite lynate structure insulation material of the present invention is applied to the above-mentioned area, stable structural performance and excellent heat insulation performance can be secured at the same time by simple construction, and since it can be constructed with a thinner structure than the conventional method, And the insulation is protected by a sturdy elastomer and metal upper and lower plates. Therefore, it is superior in terms of airtightness and shock resistance and maintenance, and it is possible to arrange tanks and compartments regardless of the temperature characteristics of the compartments. The utilization of the structure can be dramatically increased.

3) It can be applied to pipe structure requiring insulation.

Conventional pipes often require insulation for a variety of reasons. In this case, it is troublesome to install multiple layers of insulation on the metal pipe, and the insulation is exposed to the external environment, which is fundamentally weak in terms of maintenance. Vacuum insulation is currently being processed in the form of a pipe. Such a vacuum insulation material and an existing metal pipe can be easily fabricated as one body. This eliminates the need for separate insulation work, which simplifies installation, provides excellent insulation performance, and makes piping work extremely easy to maintain.

4) It is applicable to LPG cargo hold tank structure.

Conventional LPG cargo holds are made by applying a polyurethane primer to an iron structure and manually spraying polyurethane onto it to produce a heat insulation layer of about 120 to 200 mm and then closing the pipe with a polyurea coating . Therefore, a considerable working time is required, and various scattering materials are inevitably generated when spraying the thermal insulation material, which is environmentally unfavorable.

In addition, since the welding work is required after the insulation is installed in the tank mounting and assembling process, the risk of fire is very high, and in many shipbuilding factories, there is a large fire caused by this, which leads to human accidents.

The internal design temperature of the LPG cargo holds is -50 ° C and the cargo hold structure is to be of low temperature steel (LT steel) which can withstand low temperatures. Generally, low-temperature steel is expensive compared to general steel for shipbuilding.

When the present invention is applied to an LPG cargo hold structure, it is possible to manufacture a cargo hold structure much thinner than a conventional polyurethane spraying structure, so that the cargo hold space can be increased or the ship size can be reduced as much as possible. Because it is very simple, it can reduce the labor cost and fundamentally eliminate the risk of fire. Only LTG steel can be used for the surface that touches LPG, and the outer surface can use the existing steel plate for general shipbuilding. Do.

Figure 1 is a side cross-sectional view of a conventional composite laminate structure
2 is a longitudinal cross-sectional view of a conventional composite laminate structure of the same type
3 is an exploded perspective view showing a composite laminate heat insulating structural member according to a first embodiment of the present invention.
4 is a perspective view showing a combined laminate heat insulating structural member according to a first embodiment of the present invention.
5 is a sectional view taken along line II in Fig. 4
6 is a plan view showing a modified example of the composite laminate heat insulating structural member according to the first embodiment of the present invention
7 is a sectional view taken along the line II-II in Fig. 6
8 is a cross-sectional view showing the bending of the flexible composite insulation composed of a plurality of unit pieces
9 is an exploded perspective view showing another modified example of the composite laminate heat insulating structural member according to the first embodiment of the present invention.
10 is a longitudinal sectional view of Fig. 9
11 is a longitudinal sectional view showing still another modification
12 is a block diagram illustrating a method of manufacturing a composite laminate insulation structural material according to a first embodiment of the present invention
13 is an exploded perspective view showing a composite laminate heat insulating structural member according to a second embodiment of the present invention.
14 is a perspective view showing a combined laminate insulation structural member according to a second embodiment of the present invention.
15 is a sectional view taken along the line III-III in Fig. 14
16 is a longitudinal sectional view showing a modification of Fig. 15
17 is a longitudinal sectional view showing a composite laminated insulating material according to a third embodiment of the present invention
18 is a block diagram illustrating a method of manufacturing a composite laminate insulation structural material according to a third embodiment of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings, in which a composite laminate insulation material and a method for manufacturing the composite laminate insulation material are described in detail.

FIG. 3 is an exploded perspective view showing a composite laminate insulating structural member according to a first embodiment of the present invention, FIG. 4 is an assembled perspective view showing a composite laminate insulating structural member according to the first embodiment of the present invention, Fig. 6 is a plan view showing a modified example of the composite laminated thermal insulating structural member according to the first embodiment of the present invention, Fig. 7 is a sectional view taken along a line II-II in Fig. 6, and Fig. 8 is a cross- 9 is an exploded perspective view showing another modified example of the composite laminated thermal insulating structural member according to the first embodiment of the present invention, Fig. 10 is a longitudinal sectional view of Fig. 9, and Fig. 11 is a cross- Fig.

3 to 5, the composite laminate insulation material 100 according to the first embodiment of the present invention includes a lower plate 110 horizontally disposed on the lower side; A rim frame 120 installed at a rim portion of an upper surface of the lower plate 110; An upper plate 130 positioned horizontally above the lower plate 110 and having both ends fixed to the upper surface of the frame 120; A heat insulating material 140 installed between the lower plate 110 and the upper plate 130; A lower elastomer 150 filled in a space between the lower plate 110 and the heat insulating material 140; And an upper elastomer (160) filled in a space between the top plate (130) and the heat insulating material (140). An elastomer refers to a plastic or polymer material.

The lower plate 110 and the upper plate 130 may be made of various materials in consideration of adhesiveness with the upper elastomer 160 and the lower elastomer 150 while maintaining rigidity and heat insulation. It is best. The lower plate 110 and the upper plate 130 may have a length of 1-10 m, a width of 0.5-5 m, and a thickness of 3-30 mm.

The surfaces of the bottom plate 110 and the top plate 130 may be flat, but may be curved or embossed.

The rim frame 120 is positioned to surround the entire circumference of the lower elastomer 150 and the upper elastomer 160. The shape of the rim frame 120 is not limited to a solid structure and can be changed to a hollow channel structure or the like.

The heat insulating material 140 of the present invention may have a thickness of 5 to 30 mm, and is characterized by having a uniform thickness in the horizontal direction.

When the load is transferred from the top plate 130 to the bottom plate 110 by the uniform thickness of the heat insulating material 140, the impact absorbing load at each position of the heat insulating material 140 (see FIG. 1) So that the impact absorption performance and the fatigue load balance are maintained, thereby improving the shock absorption performance of the entire composite laminated structural member and preventing fatigue cracking.

The insulation material of the present invention may include not only vacuum insulation materials but also air insulation materials or slim organic insulation materials and inorganic insulation materials, and it is also possible to use atypical type insulation materials (gaseous, liquid, gel type insulation materials) .

Vacuum heat insulators can be formed by a known technique in which a metal plate is formed on both sides and a vacuum insulation part is formed between the metal plates (refer to Registration No. 10-1243695). The aerosol insulation material or the slim organic insulation material and the inorganic insulation material may be formed by a known technique.

The thermal conductivity (W / mK, at 20 ℃) of the vacuum insulation material shall be 0.0045 or less.

Airgel insulation shall include Aspen aerogels and Thermablok, and the thermal conductivity (W / mK, at 20 ℃) shall be 0.000020 or less.

For reference, the lower the thermal conductivity and the lower the heat conduction rate, the higher the insulation performance. The higher the thermal resistance, the higher the insulation performance.

Table 1 below shows the heat insulating materials usable as the heat insulating material of the present invention.

Classification Representative product or representative manufacturer Thermal conductivity (W / mK @ 20 ℃) Airgel insulation Aspen aerogels, Thermablok Below 0.000020 Vacuum insulation V-pack, energy bag, hyper bag, etc. 0.0045 or less Inorganic insulator FS General 0.025 level Worm 0.034 to 0.038 Mineral wool 0.036 to 0.038 Organic insulation XPS Level from 0.270 to 0.031 EPS 2 species Levels from 0.031 to 0.034 EPS 1 species Level from 0.036 to 0.043 Polyester 0.034 to 0.045 level

In general, the elastic modulus E of the lower elastomer 150 and the upper elastomer 160 is set to a minimum anticipated temperature and less than 5000 MPa in case of shipbuilding, so that the elastomer 150 and the upper elastomer 160 do not become too rigid.

The lower elastomer 150 and the upper elastomer 160 may be integrally formed as shown in FIG. 5 (a) or may be integrally formed as shown in FIG. 5 (b) It can be composed of one.

When the lower elastomer 150 and the upper elastomer 160 are separately formed, the density and the composition of the lower elastomer 150 and the upper elastomer 160 may be different.

The reason for making the density of the lower elastomer 150 and the upper elastomer 160 different from each other is that when the portion contacting the lower plate 110 and the portion contacting the upper plate 130 are used in a place where the heat insulation needs to be different, This is because the design load temperature and conditions of the upper and lower surfaces of the lower elastomer 150 and the upper elastomer 160 may be different from each other by making the density and the composition of the lower elastomer 150 and the upper elastomer 160 different. Therefore, an optimum structure and heat insulating performance can be exhibited by disposing an elastomer having an optimum component in accordance with each design condition.

On the other hand, according to the shape of the material, it is possible to divide the insulation method into a molded plate, a foamed type, and a blown type. However, all of the heat insulating materials manufactured by the above methods have a solid insulating structure.

In other words, most insulation is a solid containing small bubbles inside. However, from a thermodynamic standpoint, it is much better to make insulation from liquid, gel, and gas, which are non-crystalline materials rather than solids. Although the thermal conductivity coefficient of a solid is greater than the thermal conductivity coefficient of a liquid and the thermal conductivity coefficient of the liquid is about 100 times greater than the thermal conductivity coefficient of the gas, there is a great disadvantage in terms of transportation, construction and maintenance, It does not.

However, as shown in FIG. 5 (3), the present invention can be easily applied to an irregular-type heat insulating material (gas, liquid, gel-type heat insulating material) That is, if a temporary non-seamless insulation material is injected into a flexible vessel such as an air mat to form a temporary atypical insulation material, the composite laminate insulation material of the present invention can be easily fabricated as a non-seamless insulation material. That is, the lower frame 110 is sequentially installed, the frame 120 is provided on the lower plate 110, the lower spacer 171 is provided on the upper surface of the lower plate 110, The upper spacer 172 is provided on the upper surface of the flexible container and the lower and upper elastomers 150 and 160 are injected.

The irregular type heat insulator 140 is immersed in a flexible container capable of withstanding only a certain degree of pressure for a period of time (usually about 4 hours) during which the elastomer is injected and cured, (A space formed between the upper and lower plates and the frame) and the upper and lower elastomers (the lower and upper frames) 160, and 150, respectively. The flexible container includes a synthetic resin or the like.

In addition, the heat insulating material 140 may be monolithic as shown in FIG. 3 to FIG. 5 or may be composed of a composite body in which a plurality of unit bodies are connected to each other as shown in FIG. 6 and FIG.

Since the bottom plate 110 and the top plate 130 made of a metal are accompanied by a movement due to thermal deformation, when the bending due to the load is performed, the heat insulating material 140 constituted by the composite material has a margin So that breakage or damage of the heat insulating material 140 can be effectively prevented.

The structure for supporting the heat insulating material 140 at a predetermined distance in the space between the lower plate 110 and the upper plate 130 is not limited to the spacer structure shown in Figs. 3 to 5, or the structure shown in Figs. 9 and 10 It can be a stepped structure.

3 to 5, a first spacer 171 is provided to maintain a space between the lower plate 110 and the heat insulating material 140, and a space between the upper plate 130 and the heat insulating material 140 A second spacer 172 may be provided.

The number of the first spacers 171 and the second spacers 172 and the spacing between them are not limited to those shown in the drawings, and may be changed according to design conditions. The material of the first spacer 171 and the second spacer 172 may be a high-density elastomer.

9 and 10, in order to maintain a space between the lower plate 110 and the heat insulating material 140 and a space between the upper plate 130 and the heat insulating material 140, a frame frame 120 A step 121 for supporting an end of the heat insulating material 140 may be formed.

11, the structure of the spacers 171 and 172 and the structure of the step 121 may be applied together to improve the structural strength and safety.

Meanwhile, the method of fabricating the composite laminate heat insulating structural member 100 according to the first embodiment of the present invention includes the steps of: (S110) horizontally installing a lower plate 110 formed of a plate material; Installing a rim frame 120 at a rim of an upper surface of the lower plate 110 (S120); A step S130 of horizontally installing the heat insulating material 140 in a space between the lower plate 110 and the upper plate 130; (S140) fixing both ends of the top plate 130 to the upper surface of the frame 120 so as to be horizontally positioned on the upper side of the lower plate 110; A step S150 of filling the space between the lower plate 110 and the heat insulating material 140 with the lower elastomer 150 and filling the space between the upper plate 130 and the heat insulating material 140 with the upper elastomer 160, .

In the method for manufacturing a composite laminate heat insulating structural member 100 according to the first embodiment of the present invention, the lower elastomer 150 and the upper elastomer 160 may be individually charged or integrally charged.

When the lower elastomer 150 and the upper elastomer 160 are separately packed, the density of the lower elastomer 150 and the upper elastomer 160 may be different.

As described above, in a case where the portion contacting the lower plate 110 and the portion contacting the upper plate 130 are to be differently insulated, the density and the composition of the lower elastomer 150 and the upper elastomer 160 This is because the design load temperature and conditions of the upper and lower surfaces may differ from each other. Therefore, an optimum structure and heat insulating performance can be exhibited by disposing an elastomer having an optimum component in accordance with each design condition.

The method of integrally charging the lower elastomer 150 and the upper elastomer 160 can be performed by charging the lower elastomer 150 and the upper elastomer 160 simultaneously or both.

FIG. 13 is an exploded perspective view showing a composite laminate insulating structural member according to a second embodiment of the present invention, FIG. 14 is an assembled perspective view showing a composite laminate insulating structural member according to a second embodiment of the present invention, FIG. 14 is a sectional view taken along line III-III of Fig. 15, and Fig. 16 is a longitudinal sectional view showing a modification of Fig.

13 to 15, a composite laminate insulation material 200 according to a second embodiment of the present invention includes a lower plate 210 horizontally positioned on the lower side; A rim frame 220 installed at the rim of the upper surface of the lower plate 210; An upper plate 230 horizontally positioned above the lower plate 210 and having both ends fixed to the upper surface of the frame 220; A heat insulating material 240 installed between the bottom plate 210 and the top plate 230; A lower elastomer 250 filled in a space between the lower plate 210 and the heat insulating material 240; And an upper elastomer 260 filled in a space between the top plate 230 and the heat insulating material 240.

The frame 220 may include a first frame 221 and a second frame 222 which are coupled to the first frame 221 and the first frame 221, respectively.

The first rim frame 221 and the second rim frame 222 have a "C" cross-sectional shape and a support groove 220a for inserting both ends of the heat insulation 240 is formed.

The first frame frame 221 and the second frame frame 222 include a lower horizontal member 22 positioned between the lower plate 210 and the heat insulating material 240; An upper horizontal member 23 positioned between the top plate 230 and the heat insulating material 240; And a vertical member 24 connecting the lower horizontal member 22 and the upper horizontal member 23.

The end of the lower plate 210 is brought into contact with the lower surface of the lower horizontal member 22 or less and the end of the upper plate 210 is brought into contact with the lower surface of the upper horizontal member 23 (From the viewpoint of heat conductivity and strength) (see Fig. 15).

In other words, it is preferable that the connection area between the lower plate 210 and the upper plate 210 and the frame 220 is minimized so that the rigidity of the composite laminate insulation structure itself is maintained, and the thermal conductivity is lowered to improve the heat insulation performance .

It is preferable that both ends of the vertical member 24 are welded to the ends of the lower horizontal member 22 and the upper horizontal member 23.

16, when a cushion member 241 is added to both ends of the heat insulating material 240 to cause the banding of the lower plate 210 and the upper plate 230 made of metal and the expansion and contraction in the horizontal direction, It is possible to effectively prevent deformation or breakage of the heat insulating material 240. [

17 is a longitudinal sectional view showing a composite laminate insulation material according to a third embodiment of the present invention, and FIG. 18 is a block diagram illustrating a method of manufacturing a composite laminate insulation material according to a third embodiment of the present invention.

Referring to FIG. 17, a composite laminate insulation material 300 according to a third embodiment of the present invention includes a lower plate 310 horizontally disposed on a lower side thereof; A rim frame 320 installed at the rim of the upper surface of the lower plate 310; A top plate 330 horizontally positioned above the bottom plate 310 and having both ends fixed to the top surface of the frame frame 320; A heat insulating material 340 installed between the lower plate 310 and the upper plate 330; Upper and lower void cores (so-called bubble cores) 380 and 390 installed in a space between the lower plate 310 and the heat insulating material 340 and a space between the upper plate 330 and the heat insulating material 340; A lower elastomer 350 filled in a space between the lower plate 310 and the heat insulating material 340; And an upper elastomer (360) filled in a space between the top plate (330) and the heat insulating material (340).

The lower plate 310 and the upper plate 330 may be made of any material having various properties in consideration of adhesiveness with the upper elastomer 360 and the lower elastomer 350 while maintaining rigidity and heat insulation. It is best.

The frame 320 is not limited to a solid structure, and may be a hollow channel structure or the like. The frame frame 320 may be composed of not only two but also four frames.

The heat insulating material 340 includes not only vacuum insulating materials, but also organic and inorganic insulating materials such as airgel insulation materials or slim materials.

The thermal conductivity (W / mK, at 20 ° C) of the vacuum insulator 340 is 0.0045 or less.

Airgel insulation shall include Aspen aerogels and Thermablok, and the thermal conductivity (W / mK, at 20 ℃) shall be 0.000020 or less.

When the lower elastomer 250 and the upper elastomer 360 are separately formed, the lower elastomer 350 and the upper elastomer 360 may be separately formed or integrally formed. In the case where the lower elastomer 250 and the upper elastomer 360 are separately formed, The density and the component of the upper elastomer 350 and the upper elastomer 360 may be different from each other.

As described above, when the portion contacting the lower plate 310 and the portion contacting the upper plate 330 are to be used for different heat insulation, the density or the composition of the lower elastomer 350 and the upper elastomer 360 This is because the design load temperature and conditions of the upper and lower surfaces may differ from each other. Therefore, an optimum structure and heat insulating performance can be exhibited by disposing an elastomer having an optimum component in accordance with each design condition.

Referring to FIG. 18, a method of fabricating a composite laminate insulation material 300 according to a third embodiment of the present invention includes the steps of: (S310) horizontally installing a lower plate 310 formed of a plate material; (S320) of installing a frame frame (320) on the upper surface of the lower plate (310); Installing a lower void core 380 on the upper surface of the lower plate 310 (S330); A step S340 of inserting the end portion of the heat insulating material 340 into the support groove 320a of the frame 320 to install the heat insulating material 340; Installing an upper void core 390 on the upper surface of the heat insulating material 340 (S350); (S360) fixing both ends of the top plate 330 to the upper surface of the frame frame 320 so as to be horizontally positioned above the upper void core 390; A step S370 of filling the space between the lower plate 310 and the heat insulating material 340 with the lower elastomer 350 and filling the space between the upper plate 330 and the heat insulating material 340 with the upper elastomer 360, .

The frame frame 320 may include a first frame frame 321 and a second frame frame 322 that is coupled to the first frame frame 321 to face each other.

The lower elastomer 350 and the upper elastomer 360 may be separately charged or integrally filled.

When the lower elastomer 350 and the upper elastomer 360 are separately packed, the density, components, etc. of the lower elastomer 350 and the upper elastomer 360 may be different.

As described above, when the portion contacting the lower plate 310 and the portion contacting the upper plate 330 are to be used for different heat insulation, the density or the composition of the lower elastomer 350 and the upper elastomer 360 The design load temperature and conditions of the upper and lower surfaces may differ from each other. Therefore, an optimum structure and heat insulating performance can be exhibited by disposing an elastomer having an optimum component in accordance with each design condition.

On the other hand, in order to increase the heat insulation performance, the heat transfer between the molecules should be suppressed to the utmost. However, since the high-density materials in which the molecules are arranged closely are not expected to have proper heat insulation performance, the heat insulation itself can not be expected as a structural material. Therefore, the existing insulation materials must be preceded by further work on the foundation structure of concrete, iron structure, and wood.

In addition, in order to maintain the heat insulation performance, since the airtight bonding between the members is very important, a great deal of care is required when joining with a structural member, and various bonding materials are required. And, for most construction projects, additional finishing work is required for the protection of the insulation, resulting in cost and time. In the case of airgel insulation, it is very weak in terms of mechanical strength due to a high porosity of 90 to 95% or more and may be damaged even in a small impact. In order to overcome these disadvantages, airgel Blanket type heat insulation material which improves flexibility and mechanical properties has been developed by using composite material of fiber and aerogels. However, even in this case, since the characteristic as a structural material is insignificant, Additional installation of additional insulation is required.

In addition, when it is applied to a pipe or a gas tank, since most of the heat insulating material is exposed to the outside as it is, durability and maintenance problems due to external environment may occur.

The composite laminate structure insulating material of the present invention was invented in consideration of all of the above-mentioned problems, and it was found that (1) when the elastomer is injected, the vacuum insulation material is broken, (2) the insulation performance is secured, (3) the airtightness of the insulation material is maintained, 4) protection of the insulation against external impact, and 5) performance as a structural material.

1) Damage of vacuum insulation material when injecting elastomer

Most vacuum insulation is susceptible to impact but has some strength in terms of compression load. For example, in the case of fumed silica type vacuum insulation material, a vacuum insulation panel having a compression load of 20 mm is about 8 to 10 N / cm 2. When the liquid elastomer is injected into the metal box, the temperature is raised and the expansion pressure is generated as the resin is cured. At this time, the generated pressure does not exceed 1 N / cm2. In practice, the air tightness test is performed before the elastomer injection work to make the existing composite laminate structure, and the pressure reference at this time is also known to use a pressure of about 1 to 2 N / cm 2. Therefore, there is no possibility that the vacuum insulation material is broken in the elastomer injection process (the process of manufacturing the composite laminate insulation structure material) and the gas inside the insulation material flows out / flows.

2) Securing insulation performance

And 0.15 W / m ² K, which is the passive house heat conduction ratio standard. For example, the thickness of the composite laminate insulation material composed of a metal top plate, an upper elastomer, a vacuum insulation material, a lower elastomer, and a metal bottom plate is set to 4-5 mm, 15-20 mm, 10-20 mm, 20 mm, and 4-5 mm, the heat insulation performance can be sufficiently secured.

3) Keep airtightness of insulation

An air tightness test is performed before the elastomer injection. The more obvious reason is that since the injected liquid elastomer is cured and naturally bonded to the inner surface of the vacuum insulation and metal box (the space formed by the upper and lower plates and frame frame) and there is no air inside the hardened polyurethane The gas outflow / inflow of the vacuum insulator is fundamentally blocked, so that the airtightness of the heat insulator can be confirmed.

4) Protection of insulation against external impact

When the composite laminate heat insulating structural member is impacted from the outside, the upper and lower plates of the metal are primarily impacted, and then the inner polyurethane elastomer receives the impact. That is, a structure in which the outside of the heat insulating material is protected by a structure surrounded by the metal upper and lower plates and polyurethane, can be widely used on the outer wall of the hull, deck, etc. of an offshore structure by sufficiently protecting the heat insulating material against external impact.

5) Performance as a structural material

In order for the composite laminate insulating structural material to maintain its properties as a stable structural material, the overall bonding property between the upper and lower plates constituting the metal box and the elastomer should be maintained.

According to the structure of the present invention, the inner surfaces of the upper plate and the lower plate are hermetically attached to the upper and lower elastomers. Insulation has been applied to various types of structures in such a way that they are already bonded to the surface of existing structural members. In other words, it can be said that the problem of the breakage of the insulation due to the behavior of the structural material satisfying the normal design load has already been solved. Therefore, stress and load transfer problems between the respective materials constituting the composite laminate heat insulating structural member of the present invention are also solved.

4 and 5, in the case of disposing the vacuum insulator in the form of a complex composed of a plurality of unit pieces, even when the vacuum insulator is subjected to a force exceeding the design load and is excessively bending, It is possible to effectively maintain the insulation performance.

In addition, when the load applied to the upper plate of the metal material is transmitted to the lower plate, since the heat insulating material is uniformly installed in the horizontal direction, the shock absorbing load is uniformly present so that the balance of shock absorption and fatigue load is always maintained It is possible to further improve the shock absorbing performance and rigidity of the entire laminate heat insulating structural member and effectively prevent the fatigue cracking phenomenon.

The application fields and effects of the present invention are as follows.

1) It can be applied to roof, wall and floor structure of a building.

When the composite laminate heat insulating structural member of the present invention is installed, since the heat insulating function and the structural function are implemented together, a separate heat insulating construction is not required. In the case of a passive house requiring a complete shut-off of heat-bridging, the work may be completed by locally insulating only the joint area of the metal frame frame, which may cause thermal bridging as a subsequent operation.

2) It can be applied to ships.

(HFO) which is used as a fuel for ship is very high viscosity at room temperature. Therefore, it is necessary to have a device that smoothes fluidity by raising the temperature of medium fuel oil Do. For this purpose, a variety of heating equipment is installed in the fuel oil tank, and as a result, the temperature inside the tank can be increased up to about 100 ° C. Since all of the fuel oil tanks of existing vessels are made of steel only, the heat bridging phenomenon occurs on all the surfaces constituting the tank, and the heating effect is very poor.

In addition, it often happens that a zone with a significantly different design temperature (for example, cargo holds that require refrigeration) is placed near a medium fuel oil tank. In this case, insulation outside the tank is required, but the insulation is exposed as it is due to the nature of the ship structure. For example, in the case of a container line, this arrangement frequently occurs. In this case, the insulation of the container may be damaged during the unloading process, and various maintenance problems due to the severe marine environment may occur.

In addition, in the case of chemical carriers, it is common to have a tank structure separated to carry various cargoes at the same time. In some cases, different design temperatures are maintained for each tank depending on the chemical characteristics. However, it may not be possible to maintain the temperature of each tank due to the thermal bridge phenomenon of the metal tank structure. In this case, a cofferdam or an empty tank may be inevitably disposed between the tanks.

When the composite lynate structure insulation material of the present invention is applied to the above-mentioned area, stable structural performance and excellent heat insulation performance can be secured at the same time by simple construction, and since it can be constructed with a thinner structure than the conventional method, And the insulation is protected by a sturdy elastomer and metal upper and lower plates. Therefore, it is superior in terms of airtightness and shock resistance and maintenance, and it is possible to arrange tanks and compartments regardless of the temperature characteristics of the compartments. The utilization of the structure can be dramatically increased.

3) It can be applied to pipe structure requiring insulation.

Conventional pipes often require insulation for a variety of reasons. In this case, it is troublesome to install multiple layers of insulation on the metal pipe, and the insulation is exposed to the external environment, which is fundamentally weak in terms of maintenance. Vacuum insulation is currently being processed in the form of a pipe. Such a vacuum insulation material and an existing metal pipe can be easily fabricated as one body. This eliminates the need for separate insulation work, which simplifies installation, provides excellent insulation performance, and makes piping work extremely easy to maintain.

4) It is applicable to LPG cargo hold tank structure.

Conventional LPG cargo holds are made by applying a polyurethane primer to an iron structure and manually spraying polyurethane onto it to produce a heat insulation layer of about 120 to 200 mm and then closing the pipe with a polyurea coating . Therefore, a considerable working time is required, and various scattering materials are inevitably generated when spraying the thermal insulation material, which is environmentally unfavorable. In addition, since the welding work is required after the insulation is installed in the tank mounting and assembling process, the risk of fire is very high, and in many shipbuilding factories, there is a large fire caused by this, which leads to human accidents.

The internal design temperature of the LPG cargo holds is -50 ° C and the cargo hold structure is to be of low temperature steel (LT steel) which can withstand low temperatures. Generally, low-temperature steel is expensive compared to general steel for shipbuilding.

When the present invention is applied to an LPG cargo hold structure, it is possible to manufacture a cargo hold structure much thinner than a conventional polyurethane spraying structure, so that the cargo hold space can be increased or the ship size can be reduced as much as possible. Because it is very simple, it can reduce the labor cost and fundamentally eliminate the risk of fire. Only LTG steel can be used for the surface that touches LPG, and the outer surface can use the existing steel plate for general shipbuilding. Do.

As described above, the terms and words used in the present specification and claims should not be construed as being limited to ordinary or dictionary meanings, and should be construed as meaning and concept consistent with the technical idea of the present invention.

For example, the upper plate and the lower plate are described with reference to the drawings for convenience of explanation. In the case of an insulating structural material applied to a wall or the like, the upper and lower plates are vertically positioned, to be. It is to be understood that the invention is not limited to the disclosed embodiment and the accompanying drawings, and that various changes, substitutions, and alterations can be made hereto without departing from the spirit of the invention. It will be clear to those who have knowledge.

110: Lower plate
120: Border frame
121: step
130:
140: Insulation
150: Lower elastomer
160: Upper elastomer
171: First spacer
172: second spacer
210: Lower plate
220: Border frame
220a: Support groove
221: first border frame
222: second border frame
230: upper plate
240: Insulation
250: Lower elastomer
260: Upper elastomer
310: Lower plate
320: Border frame
330: Top plate
340: Insulation
350: Lower elastomer
360: Upper elastomer
380: Lower void core
390: upper void core

Claims (23)

Bottom plate;
A frame frame installed at an edge of an upper surface of the lower plate;
An upper plate positioned above the lower plate and having both ends fixed to the upper surface of the frame;
A heat insulating material installed between the bottom plate and the top plate and having a uniform thickness in a horizontal direction;
A lower elastomer filled in a space between the lower plate and the heat insulating material; And
An upper elastomer filled in a space between the upper plate and the heat insulating material; Wherein the composite laminate insulation structure comprises: The method according to claim 1,
Wherein the heat insulating material is composed of any one of a vacuum insulation material, an airgel insulation material, an organic insulation material, an inorganic insulation material, or an unstructured type insulation material. The method of claim 2,
Wherein the thermal conductivity of the vacuum insulation material (W / mK, based on 20 ° C) is 0.0045 or less. The method according to claim 1 or 2,
The heat insulating material,
Or a composite structure composed of a plurality of unit pieces. ≪ RTI ID = 0.0 > 18. < / RTI > The method according to claim 1,
Wherein said bottom plate and said top plate are metallic. ≪ RTI ID = 0.0 > 11. < / RTI > The method according to claim 1,
The lower elastomer and the upper elastomer may be formed either individually or integrally,
Wherein the lower elastomer and the upper elastomer have different densities and components when the lower elastomer and the upper elastomer are separately formed. The method according to claim 1,
A first spacer for maintaining a space between the bottom plate and the heat insulating material; And
A second spacer for maintaining a space between the top plate and the heat insulating material; The composite laminate insulation structure further comprising: The method of claim 1 or claim 7,
And a step for supporting the end portion of the heat insulating material is formed on the upper surface of the rim frame to maintain a space between the lower plate and the heat insulating material and a space between the upper plate and the heat insulating material. . The method according to claim 1,
The frame frame includes:
And a second frame frame coupled to the first frame frame so as to face each other,
Wherein the first frame frame and the second frame frame have a " C "cross-sectional shape, and a support groove for inserting both ends of the heat insulating material is formed. The method of claim 9,
Wherein the first frame frame and the second frame frame,
A lower horizontal member positioned between the lower plate and the heat insulating material; An upper horizontal member positioned between the top plate and the heat insulating material; And a vertical member connecting the lower horizontal member and the upper horizontal member,
An end portion of the lower plate is brought into contact with a lower half of the lower horizontal member,
Wherein an upper end of the upper plate is contacted with a lower surface of the lower horizontal member. The method of claim 10,
And both ends of the vertical member are welded to the ends of the lower horizontal member and the upper horizontal member. Bottom plate;
A frame frame installed at an edge of an upper surface of the lower plate;
An upper plate positioned above the lower plate and having both ends fixed to the upper surface of the frame;
A heat insulating material provided between the bottom plate and the top plate and having a uniform thickness in a horizontal direction;
A lower and upper void core provided in a space between the lower plate and the heat insulating material and in a space between the upper plate and the heat insulating material;
A lower elastomer filled in a space between the lower plate and the heat insulating material;
An upper elastomer filled in a space between the upper plate and the heat insulating material; Wherein the composite laminate insulation structure comprises: The method of claim 12,
Wherein the heat insulating material is composed of any one of a vacuum insulation material, an airgel insulation material, an organic insulation material, an inorganic insulation material, or an unstructured type insulation material. 14. The method of claim 13,
Wherein the thermal conductivity (W / mK, based on 20 ° C) of the heat insulating material is 0.0045 or less. The method of claim 12,
Wherein said bottom plate and said top plate are metallic. ≪ RTI ID = 0.0 > 11. < / RTI > The method of claim 12,
Wherein the lower elastomer and the upper elastomer are formed individually or integrally. ≪ RTI ID = 0.0 > 18. < / RTI > 18. The method of claim 16,
Wherein the frame frame comprises a first frame frame and a second frame frame which is coupled to the first frame frame so as to face each other,
Wherein the first frame frame and the second frame frame have a " C "cross-sectional shape, and a support groove for inserting both ends of the heat insulating material is formed. A method of producing the composite laminate heat insulating structural member according to claim 1,
Providing a lower plate formed of a plate-like body;
Providing a rim frame on a rim of an upper surface of the lower plate;
Installing a heat insulating material in a space between the bottom plate and the top plate;
Fixing both end portions of the upper plate to the upper surface of the frame so as to be positioned on the upper side of the lower plate; And
Filling a space between the lower plate and the heat insulating material with a lower elastomer and filling a space between the upper plate and the heat insulating material with an upper elastomer; ≪ / RTI > 19. The method of claim 18,
Wherein the lower elastomer and the upper elastomer are individually charged or integrally charged. ≪ RTI ID = 0.0 > 18. < / RTI > The method of claim 19,
Wherein when the lower elastomer and the upper elastomer are separately packed, at least one of density and component of the lower elastomer and the upper elastomer is different. A method for manufacturing the composite laminate heat insulating structural member according to claim 12,
Providing a lower plate formed of a plate-like body;
Installing the rim frame on the lower plate;
Providing a lower void core on an upper surface of the lower plate;
Inserting and supporting an end of a heat insulating material in a support groove of the frame frame;
Providing an upper void core on an upper surface of the heat insulating material;
Fixing both ends of the upper plate to the upper surface of the frame so as to be horizontally positioned above the upper void core; And
Filling a space between the lower plate and the heat insulating material with a lower elastomer and filling a space between the upper plate and the heat insulating material with an upper elastomer; ≪ / RTI > 23. The method of claim 21,
Wherein the lower elastomer and the upper elastomer are separately charged or integrally filled. ≪ RTI ID = 0.0 > 21. < / RTI > 23. The method of claim 22,
Wherein when the lower elastomer and the upper elastomer are separately packed, at least one of density and component of the lower elastomer and the upper elastomer is different.

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