Composite insulation panel and insulation system comprising same

Abstract

An insulation panel according to an embodiment of the present invention may comprise: a first part including a first insulation layer; and a second part including a second insulation layer and attached to the top surface of the first part. Each of the first insulation layer and the second insulation layer may comprise: a first insulation material; and a second insulation material formed of a material different from that of the first insulation material.

Description

Composite insulation panels and insulation systems including the same

[0001] Cross-citation with related applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2024-0012381, filed January 26, 2024, and Korean Patent Application No. 10-2024-0055901, filed April 26, 2024, the entire contents of which are incorporated herein by reference.

[0003] The present invention relates to a composite insulation panel and an insulation system including the same, and relates to an insulation system in which the upper insulation panel and the lower insulation panel have different shapes, and the lower insulation panel is formed into a single panel by bonding a second part having a smaller area than the first part on top of the first part, thereby eliminating the risk of durability of fastening members and ensuring high insulation performance.

[0004] Liquefying a gas reduces its volume, making it easier to store and transport. This state of gas is called liquefied gas. For example, LNG, a liquefied gas, reduces its volume to about 1 / 600th of its gaseous state. The temperature required for liquefaction is approximately -163 degrees Celsius, so the temperature inside the cargo tank must be maintained at an extremely low temperature to store and transport it. In the case of liquefied hydrogen, the liquefaction temperature is lower than that of LNG, at -235 degrees Celsius, so the temperature inside the cargo tank must be maintained at an even lower temperature than that of LNG.

[0005] Therefore, liquefied gas carriers may require insulation systems capable of maintaining the internal temperature of their cargo tanks at cryogenic temperatures. If the insulation of the liquefied gas cargo tank is insufficient, resulting in high thermal conductivity within the liquefied gas storage tank, the liquefied gas may vaporize, generating boil-off gas (BOG). BOG can reduce the residual amount of liquefied gas being transported, resulting in significant economic losses. Therefore, to reduce BOG and maximize the residual amount of liquefied gas, insulation materials with superior insulation performance may be required.

[0006] However, for existing insulation systems, the only way to improve insulation performance is to increase the insulation layer thickness. This increase in thickness has the unintended consequence of causing inefficiencies, such as a decrease in the loading capacity of liquefied gas. In particular, liquefied hydrogen cargo tanks transporting liquefied hydrogen require a lower temperature environment than LNG, requiring even thicker insulation than LNG cargo tanks. This, in turn, could reduce the loading capacity of liquefied hydrogen.

[0007] Furthermore, as insulation systems become thicker, the insulation panels inevitably require multiple layers. These multi-layered systems may require fasteners between the panels. These fasteners must support the load of the multi-layered insulation panels. If the durability of these fasteners is not ensured, the structural stability of the entire insulation system may be compromised.

[0008] In order to solve at least some of the above problems, the present invention provides an insulation system in which the upper and lower insulation panels have different shapes, and the lower insulation panel is formed by bonding a second part having a smaller area than the first part on top of the first part to form a single panel, thereby eliminating the risk of durability of the fastening member and ensuring high insulation performance.

[0009] The purpose of the present invention is not limited to the purposes mentioned above, and other purposes not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0010] According to one embodiment of the present invention for achieving the above object, a multi-layer composite insulation panel comprises: a first part including a first insulation layer; and a second part including a second insulation layer and attached to an upper surface of the first part, wherein each of the first insulation layer and the second insulation layer may include a first insulation material and a second insulation material formed of a different material from the first insulation material.

[0011] In one embodiment, the upper and lower surfaces of the second part may have a smaller area than the upper and lower surfaces of the first part.

[0012] In one embodiment, the first part may further include a first hold layer disposed on top of the first insulating layer and a lower protective layer disposed on bottom of the first insulating layer.

[0013] In one embodiment, the first insulating layer and the lower protective layer may further include a misalignment prevention structure that prevents misalignment during adhesion.

[0014] In one embodiment, the second portion may further include a second hold layer disposed below the second insulating layer and a third hold layer disposed above the second insulating layer.

[0015] In one embodiment, at least one of the first hold layer, the second hold layer, and the third hold layer may be formed of the same material as the first insulating material.

[0016] An insulation system according to one embodiment of the present invention comprises a plurality of double-layer composite insulation panels, wherein the insulation system comprises a third insulation layer, a plurality of connected composite insulation panels disposed between the second portions of the double-layer composite insulation panels adjacent to each other among the plurality of double-layer composite insulation panels; and a fourth insulation layer, a plurality of upper composite insulation panels laminated on top of the plurality of double-layer composite insulation panels and the plurality of connected composite insulation panels; wherein each of the third insulation layer and the fourth insulation layer may include the first insulation material and the second insulation material.

[0017] In one embodiment, when the plurality of multi-layer composite insulation panels are arranged in a row, a rough pattern is formed by a space between the adjacent second portions, and the plurality of connecting composite insulation panels are inserted into the space to connect the adjacent second portions.

[0018] In one embodiment, the connecting composite insulation panel may further include a fourth hold layer disposed below the third insulation layer and a fifth hold layer disposed above the third insulation layer.

[0019] In one embodiment, the upper composite insulation panel further includes a sixth hold layer disposed on top of the fourth insulation layer, and an upper protective layer having anchor strips may be disposed on top of the sixth hold layer.

[0020] In one embodiment, the second barrier is disposed on top of the multi-layer composite insulation panel and the connecting composite insulation panel; and the first barrier is disposed on top of the upper composite insulation panel.

[0021] In one embodiment, the second barrier has a flat shape and is formed of a composite material, and the lower surface of the second barrier is bonded to the multi-layer composite insulation panel and the connecting composite insulation panel, and the upper surface of the second barrier is bonded to the upper layer composite insulation panel.

[0022] In one embodiment, the second barrier has a flat shape and is formed of a metal material, and an anchor strip for welding the second barrier is provided on the upper surface of the connecting composite insulation panel, and a fastening member for joining the upper composite insulation panel may be provided on the upper surface of the second part of the multi-layer composite insulation panel.

[0023] In one embodiment, the second barrier includes a plurality of wrinkle portions and is formed of a metal material, the plurality of wrinkle portions are arranged to face the upper composite insulation panel, and the upper composite insulation panel may have a wrinkle receiving portion formed in at least a portion of a lower surface thereof to receive the plurality of wrinkle portions.

[0024] In one embodiment, the upper composite insulation panel further includes a seventh hold layer disposed below the fourth insulation layer and having the wrinkle receiving portion formed therein, and an intermediate protective layer having a predetermined rigidity is disposed between the fourth insulation layer and the seventh hold layer, and the wrinkle receiving portion may be provided in a groove shape in which at least a portion of the seventh hold layer is sunken or in an opening shape in which at least a portion of the seventh hold layer is open.

[0025] An insulation system according to one embodiment of the present invention comprises an upper insulation panel and a lower insulation panel having different shapes, and the lower insulation panel is formed into a single panel by bonding a second part having a smaller area than the first part on top of the first part, thereby eliminating risks to the durability of fastening members and ensuring high insulation performance.

[0026] The effects of the present invention are not limited to those described above, and other effects not mentioned will be clearly recognized by those skilled in the art from the description below.

[0027] FIG. 1 is a drawing illustrating a liquefied gas storage tank to which an insulation system including a composite insulation panel according to one embodiment of the present invention is applied.

[0028] FIG. 2 is a drawing illustrating an insulation system including a composite insulation panel according to one embodiment of the present invention.

[0029] FIG. 3 is a drawing illustrating a first composite insulation panel of an insulation system according to one embodiment of the present invention.

[0030] FIG. 4 is a drawing illustrating a connected composite insulation panel of an insulation system according to one embodiment of the present invention.

[0031] FIG. 5 is a drawing illustrating a second composite insulation panel of an insulation system according to one embodiment of the present invention.

[0032] FIG. 6 is a cross-sectional drawing of an insulation system including a composite insulation panel according to one embodiment of the present invention.

[0033] FIG. 7 is a drawing illustrating a case in which the first barrier is a flat plate shape of a composite material in an insulation system according to one embodiment of the present invention.

[0034] FIG. 8 is a drawing illustrating a case in which the first barrier is a flat plate made of a metal material in an insulation system according to one embodiment of the present invention.

[0035] FIG. 9 is a drawing illustrating a modified example of an insulation system including a composite insulation panel according to one embodiment of the present invention.

[0036] FIG. 10 is a drawing illustrating a second composite insulation panel of an insulation system according to a modified example illustrated in FIG. 9.

[0037] Fig. 11 is a drawing showing a cross-section of an insulation system according to a modified example illustrated in Fig. 9.

[0038] FIG. 12 is a drawing showing a structure in which a foam member is placed in a wrinkled portion of a first barrier in an insulation system according to a modified example illustrated in FIG. 9.

[0039] Figure 13 is a drawing illustrating a composite insulation panel.

[0040] FIG. 14 is a drawing illustrating a composite insulation panel according to another embodiment than FIG. 13.

[0041] Figure 15 is a drawing showing the process of laminating a protective layer on an insulation layer during the process of manufacturing an insulation panel.

[0042] Fig. 16 is a drawing showing a composite insulation panel in which a protective layer is combined on top of an insulation layer in a conventional manner.

[0043] Fig. 17 is a drawing showing a misalignment prevention structure according to the first embodiment of the present invention.

[0044] Fig. 18 is a drawing showing a misalignment prevention structure according to a second embodiment of the present invention.

[0045] Figure 19 is a drawing showing a misalignment prevention structure that improves manufacturability in the second embodiment of the present invention.

[0046] Fig. 20 is a drawing showing a misalignment prevention structure according to a third embodiment of the present invention.

[0047] Figure 21 is a drawing showing the process of removing unnecessary adhesive produced during the lamination process using masking tape.

[0048] The present invention is susceptible to various modifications and embodiments. Specific embodiments are illustrated and described in detail in the drawings. However, this is not intended to limit the present invention to specific embodiments, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention.

[0049] While terms such as "first" and "second" may be used to describe various components, these components should not be limited by these terms. These terms are used solely to distinguish one component from another. For example, without departing from the scope of the present invention, a first component could be referred to as a "second component," and similarly, a second component could also be referred to as a "first component." The term "and / or" includes any combination of multiple related items described herein or any one of multiple related items described herein.

[0050] The terms "~bu, ~part, ~section, etc." may be used to describe various components, but the components should not be limited by the terms. The terms may refer not only to components that are physically / visibly distinct, but also to terms that describe the function or composition of a part even if the distinction / division is not clearly defined.

[0051] The terminology used in this application is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, it should be understood that the terms "comprise" or "have" indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0052] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0053] In the description below, the terms first and second, etc. may be used to describe various components, but these components are not limited in order, size, location, or importance by the terms first and second, etc., and are named only for the purpose of distinguishing one component from another.

[0054] Hereinafter, with reference to the attached drawings, a preferred embodiment of the present invention will be described in more detail.

[0055] FIG. 1 is a drawing illustrating a liquefied gas storage tank to which an insulation system including a composite insulation panel according to one embodiment of the present invention is applied.

[0056] The liquefied gas storage tank (1) illustrated in Fig. 1 can be installed on a ship transporting gas.

[0057] Referring to Fig. 1, a liquefied gas storage tank (1) may include an insulation system (100). For example, the liquefaction temperature of gases such as LNG and liquefied hydrogen may be extremely low at atmospheric pressure, and an insulation system (100) may be applied to a liquefied gas storage tank (1) equipped on a ship to maintain such an extremely low temperature state. Here, the liquefied gas is not limited to LNG and liquefied hydrogen, and may include all gases that are generally stored in a liquid state, such as LPG, ethylene, and ammonia.

[0058] An insulation system (100) may be provided on the inner surface (11) of a liquefied gas storage tank (1). For example, the insulation system (100) may be installed on the inner surface (11) of the liquefied gas storage tank (1) and may come into contact with the liquefied gas, at least part of which is stored therein.

[0059] The insulation system (100) may be formed in a laminated form by including a plurality of first composite insulation panels (110, multi-layer composite insulation panels), connecting composite insulation panels (120), and second composite insulation panels (130, upper layer composite insulation panels). For example, the first composite insulation panel (110) may be installed on the inner surface (11) of the liquefied gas storage tank (1), the connecting composite insulation panel (120) may be laminated to connect adjacent first composite insulation panels (110) on the upper portion of a portion of the first composite insulation panel (110), and the second composite insulation panel (130) may be laminated on the upper portions of the first composite insulation panel (110) and the connecting composite insulation panel (120).

[0060] The shape / structure of the first composite insulation panel (110), the connecting composite insulation panel (120), and the second composite insulation panel (130) constituting the insulation system (100) and the structure in which they are laminated are described in detail below with reference to FIGS. 2 to 6.

[0061] FIG. 2 is a drawing illustrating an insulation system including a composite insulation panel according to one embodiment of the present invention. FIG. 3 is a drawing illustrating a first composite insulation panel of an insulation system according to one embodiment of the present invention. FIG. 4 is a drawing illustrating a connected composite insulation panel of an insulation system according to one embodiment of the present invention. FIG. 5 is a drawing illustrating a second composite insulation panel of an insulation system according to one embodiment of the present invention. FIG. 6 is a drawing illustrating a cross-section of an insulation system including a composite insulation panel according to one embodiment of the present invention.

[0062] Fig. 2 is a perspective view of an insulation system (100) in which a plurality of composite insulation panels (110, 120, 130) are laminated. Fig. 3 is a perspective view and an exploded perspective view of a first composite insulation panel (110). Fig. 4 is a perspective view and an exploded perspective view of a connected composite insulation panel (120). Fig. 5 is a perspective view and an exploded perspective view of a second composite insulation panel (130). Fig. 6 is a cross-sectional view schematically illustrating the laminated structure of the insulation system (100) illustrated in Fig. 2.

[0063] Referring to FIGS. 2 to 6, an insulation system (100) according to one embodiment may be configured with a structure in which a first composite insulation panel (110), a connecting composite insulation panel (120), and a second composite insulation panel (130) are each provided in multiples and are laminated in an alternating manner.

[0064] According to various embodiments, the first composite insulation panel (110) and the second composite insulation panel (130) may be referred to as a lower composite insulation panel and an upper composite insulation panel, respectively, based on the stacking order and position. In addition, according to various embodiments, the first composite insulation panel (110) may be referred to as an inner composite insulation panel because it is closest to the inner surface (11) of the storage tank (1), and the second composite insulation panel (130) may be referred to as an outer composite insulation panel because it is closest to the outer surface of the insulation system (100). Alternatively, according to various embodiments, the first composite insulation panel (110) may be configured as a double layer and may be referred to as a double-layer composite insulation panel, and the second composite insulation panel (130) may be disposed on the upper layer of the first composite insulation panel (110) and the connecting composite insulation panel (120) and may be referred to as an upper layer composite insulation panel.

[0065] The first composite insulation panel (110) may include a plurality of insulation layers (112, 116), a plurality of hold layers (113, 115, 117), and a plurality of protection layers (111, 114, 118). The connected composite insulation panel (120) may include an insulation layer (122), a plurality of hold layers (121, 123), and a protection layer (124). The second composite insulation panel (130) may include an insulation layer (132), a hold layer (133), and a plurality of protection layers (131, 134).

[0066] In this specification, the insulation layer, the holding layer, and the protective layer included in each of the first composite insulation panel (110), the connecting composite insulation panel (120), and the second composite insulation panel (130) are referred to using terms such as first and second to distinguish them from each other, but they can be understood to perform the same function / role and have substantially the same configuration, with only some differences in size and / or position.

[0067] Referring to FIG. 3, the plurality of insulation layers of the first composite insulation panel (110) may include a first insulation layer (112) and a second insulation layer (116). The plurality of hold layers of the first composite insulation panel (110) may include a first hold layer (113), a second hold layer (115), and a third hold layer (117). The plurality of protection layers of the first composite insulation panel (110) may include a first protection layer (111, lower protection layer), a second protection layer (114), and a third protection layer (118).

[0068] The first composite insulation panel (110) may have a shape in which a first protection layer (111), a first insulation layer (112), a first hold layer (113), a second protection layer (114), a second hold layer (115), a second insulation layer (116), a third hold layer (117), and a third protection layer (118) are sequentially laminated.

[0069] The plurality of insulation layers (112, 116) of the first composite insulation panel (110) can perform the function of providing insulation performance to the first composite insulation panel (110).

[0070] The first insulation layer (112) may include a first insulation material (I1) and a second insulation material (I2). The first insulation material (I1) and the second insulation material (I2) may be formed of different materials. The first insulation material (I1) may be formed of a material having superior structural strength to the second insulation material (I2), and the second insulation material (I2) may be formed of a material having superior insulation performance to the first insulation material (I1).

[0071] The first insulation layer (112) can have improved insulation performance by being formed by a combination of the first insulation material (I1) and the second insulation material (I2), and through this, the thickness of the first composite insulation panel (110) can be reduced by forming the thickness of the first insulation layer (112) thin.

[0072] The first insulation material (I1) may be formed of a material having a higher tensile strength than the second insulation material (I2). The second insulation material (I2) may be formed of a material having a lower thermal conductivity than the first insulation material (I1). For example, the first insulation material (I1) may be formed of a reinforced polyurethane foam (RPUF), and the second insulation material (I2) may be formed of a vacuum insulation panel (VIP). However, the materials of the first insulation material (I1) and the second insulation material (I2) are merely examples and are not limited thereto.

[0073] According to various embodiments, the first insulation material (I1) may be formed of PUF (polyurethane foam), phenolic foam, lightweight concrete, or plywood, and the second insulation material (I2) may be formed of aerogel, glass bubble, melamine foam, polystyrene foam, or polyethylene foam.

[0074] The first insulation material (I1) may be combined with the second insulation material (I2). For example, the first insulation layer (112) may be provided in a form in which the first insulation material (I1) and the second insulation material (I2) are combined to form an integral body.

[0075] The first insulating material (I1) may be provided with a plurality of openings into which the second insulating material (I2) may be received or inserted and coupled. For example, the first insulating material (I1) may be provided with four rectangular openings that are symmetrical with respect to the center of the first insulating material (I1), and the second insulating material (I2) may be coupled to the second insulating material (I2) by being inserted into the openings of the first insulating material (I1). The second insulating material (I2) may be formed in a shape corresponding to the openings of the first insulating material (I1).

[0076] The first insulating layer (112) may be formed in a rectangular parallelepiped shape. Meanwhile, the shape of the first insulating layer (112) illustrated in FIG. 3 is exemplary, and the size, shape, and bonding structure of the first insulating material (I1) and the second insulating material (I2) are not limited to the illustrated shape.

[0077] The second insulation layer (116) has substantially the same configuration as the first insulation layer (112) except for the size and can perform the same function.

[0078] For example, the second insulation layer (116) may include a first insulation material (I1) and a second insulation material (I2) similar to the first insulation layer (112), and the first insulation material (I1) and the second insulation material (I2) of the second insulation layer (116) may be the same as the first insulation material (I1) and the second insulation material (I2) of the first insulation layer (112).

[0079] The second insulation layer (116) may be formed to have a smaller size than the first insulation layer (112) and may be placed on the center portion of the first insulation layer (112). For example, the area of ​​the upper / lower surfaces of the second insulation layer (116) may be smaller than the area of ​​the upper / lower surfaces of the first insulation layer (112). The second insulation layer (116) may be formed in a rectangular parallelepiped shape that is smaller than the first insulation layer (112). The area of ​​the upper and lower surfaces of the second insulation layer (116) may be smaller than that of the first insulation layer (112), but the height may be the same. However, the heights of the second insulation layer (116) and the first insulation layer (112) may also be different.

[0080] The second insulation layer (116) and the first insulation layer (112) can be laminated so that their central axes coincide. That is, the first insulation layer (112) and the second insulation layer (116) can be aligned so that their respective centers are located on the same axis. For example, when the first composite insulation panel (110) is viewed from above the third protective layer (118), the second insulation layer (116) is located at the center of the first insulation layer (112).

[0081] The plurality of hold layers (113, 115, 117) of the first composite insulation panel (110) can perform a function of protecting the plurality of insulation layers (112, 116). For example, the plurality of insulation layers (112, 116) (particularly, the second insulation material (I2) of the insulation layer) can be protected from external impact by the plurality of hold layers (113, 115, 117). In addition, at least some of the plurality of hold layers (113, 115, 117) can function as layers for installing other handling devices such as hole processing. For example, insert holes or protective layers can be installed in the plurality of hold layers (113, 115, 117).

[0082] The first hold layer (113) may be placed on top of the first insulation layer (112). The first hold layer (113) may cover the upper surface of the first insulation layer (112). For example, the first hold layer (113) may have an area equal to the area of ​​the upper surface of the first insulation layer (112). The first hold layer (113) may be formed to have a thickness thinner than the first insulation layer (112).

[0083] The second hold layer (115) may be disposed below the second insulation layer (116), and the third hold layer (117) may be disposed above the second insulation layer (116). The second hold layer (115) may cover the lower surface of the second insulation layer (116), and the third hold layer (117) may cover the upper surface of the second insulation layer (116). For example, the second hold layer (115) and the third hold layer (117) may have the same area as the area of ​​the upper surface and the lower surface of the second insulation layer (116). The second hold layer (115) and the third hold layer (117) may be formed to have a thinner thickness than the second insulation layer (116).

[0084] At least some of the first hold layer (113), the second hold layer (115), and the third hold layer (117) may be formed of the same material (e.g., RPUF) as the first insulation material (I1). However, the material of the first hold layer (113), the second hold layer (115), and the third hold layer (117) may not be the same as the material of the first insulation material (I1), and is not particularly limited. In addition, the first hold layer (113), the second hold layer (115), and the third hold layer (117) may be the same material or different materials.

[0085] At least some of the first hold layer (113), the second hold layer (115), and the third hold layer (117) may be formed of a material having superior structural strength to the second insulating material (I2). For example, the hold layers (113, 115, 117) may be formed of a material capable of providing stable structural strength to the first composite insulating panel (110).

[0086] The first protective layer (111) may be disposed under the first insulating layer (112). For example, the first protective layer (111) may be a layer that protects the lower portion of the first insulating layer (112). A mastic structure (190) may be disposed under the first composite insulating panel (110), and the first protective layer (111) may be adhered to the mastic structure (160). For example, the first protective layer (111) may have high rigidity so as to be adhered to the mastic structure (160). The first protective layer (111) may have the same area as the lower surface of the first insulating layer (112).

[0087] The second protective layer (114) may be disposed between the first hold layer (113) and the second hold layer (115). The second protective layer (114) may be a layer that protects the upper portion of the first insulating layer (112) (e.g., together with the first hold layer (113)), protects the lower portion of the second insulating layer (116) (e.g., together with the second hold layer (115)), and facilitates the placement of the second hold layer (115) on the upper portion of the first hold layer (113). The second protective layer (114) may have the same area as the upper surface of the first insulating layer (112).

[0088] However, the second protection layer (114) is not a mandatory component, and according to various embodiments, if the first insulation layer (112) and the second insulation layer (116) are sufficiently protected by the first hold layer (113) and the second hold layer, the second protection layer (114) may be omitted. If the second protection layer (114) is omitted, the second hold layer (115) may be adhered to the first hold layer (113).

[0089] A third protective layer (118) may be placed on top of the third hold layer (117). The third protective layer (118) protects the upper portion of the second insulating layer (116) (e.g., together with the third hold layer (117)) and, although not shown in FIG. 3, may be a layer on which a bonding structure (e.g., an anchor strip) may be installed if necessary. The third protective layer (118) may have the same area as the upper surface of the second insulating layer (116).

[0090] However, the third protection layer (118) is not a mandatory configuration, and according to various embodiments, if the protection of the second insulation layer (116) by the third hold layer (117) is sufficient and installation of anchor strips is not required, the third protection layer (118) may be omitted. For example, if installation of anchor strips is not required in the first composite insulation panel (110), the second barrier wall (140) is formed of a composite material and the second barrier wall (140) is not joined by welding, which will be described in detail below with reference to FIGS. 7 and 8.

[0091] The first composite insulation panel (110) includes a first portion (110a) having a structure in which a first protective layer (111), a first insulating layer (112), a first hold layer (113), and a second protective layer (114) are laminated, and a second portion (110b) having a structure in which a second hold layer (115), a second insulating layer (116), a third hold layer (117), and a third protective layer (118) are laminated, and the second portion (110b) may be provided in a form in which it is bonded to the center of the first portion (110a) to form an integral part with the first portion (110a). For example, the second hold layer (115) of the second portion (110b) may be bonded to the second protective layer (114) of the first portion (110a).

[0092] The second part (110b) is formed so that the upper and lower surfaces have a smaller area than the upper and lower surfaces of the first part (110a), and can be bonded to the center of the upper surface of the first part (110a). Accordingly, when a plurality of first composite insulation panels (110) are arranged in a row, a rough pattern can be formed by the space (s) between the adjacent second parts (110b). A connecting composite insulation panel (120) described below can be arranged in the space (s) between the adjacent second parts (110b).

[0093] Referring to FIG. 4, the connecting composite insulation panel (120) may include a third insulation layer (122), a fourth hold layer (121), a fifth hold layer (123), and a fourth protective layer (124).

[0094] The connecting composite insulation panel (120) may have a shape in which a fourth hold layer (121), a third insulation layer (122), a fifth hold layer (123), and a fourth protection layer (124) are sequentially laminated.

[0095] With respect to the insulation layer (122), the hold layer (121, 123) and the protection layer (124) provided in the connecting composite insulation panel (120), the description of the insulation layer (112, 116), the hold layer (113, 115, 117) and the protection layer (111, 114, 118) of the first composite insulation panel (110) described above with reference to FIG. 3 can be equally applied, and therefore, any duplicate description will be omitted below.

[0096] When a plurality of first composite insulation panels (110) are arranged, the connecting composite insulation panel (120) can be arranged between the second insulation layers (116) of adjacent first composite insulation panels (110) to connect the adjacent second insulation layers (116). For example, the connecting composite insulation panel (120) can be arranged between the second portions (110b) of adjacent first composite insulation panels (110) to connect them.

[0097] The connecting composite insulation panel (120) can be placed between the second portions (110b) of the adjacent first composite insulation panels (110) and attached to the first portions (110a) of the adjacent first composite insulation panels (110).

[0098] The connecting composite insulation panel (120) may have substantially the same size and laminated structure as the second portion (110b) of the first composite insulation panel (110) in which the second hold layer (115), the second insulation layer (116), the third hold layer (117), and the third protection layer (118) are laminated.

[0099] For example, each of the fourth hold layer (121), the third insulation layer (122), the fifth hold layer (123), and the fourth protection layer (124) of the connecting composite insulation panel (120) may be understood to have substantially the same size, area, material, or shape as the second hold layer (115), the second insulation layer (116), the third hold layer (117), and the third protection layer (118) of the first composite insulation panel (110).

[0100] The fourth protective layer (124) of the connecting composite insulation panel (120) may be provided with an anchor strip (C1). The anchor strip (C1) is a component for welding the second barrier (140). When the second barrier (140) is formed of a metal material, the anchor strip (C1) may be provided in the fourth protective layer (124) for welding the second barrier (140). The number and / or positions of the anchor strips (C1) provided in the fourth protective layer (124) may be variously modified in response to positions where welding of the second barrier (140) is required. According to various embodiments, when the second barrier (140) is formed of a composite material, the anchor strip (C1) may be omitted since welding of the second barrier (140) is not required.

[0101] The fourth protective layer (124) of the connecting composite insulation panel (120) is not an essential component, like the third protective layer (118) of the first composite insulation panel (110), and according to various embodiments, when the protection of the third insulation layer (122) by the fifth hold layer (123) is sufficient and when the installation of the anchor strip (C1) is not required (e.g., when the second barrier (140) is formed of a composite material), the fourth protective layer (124) may be omitted.

[0102] Referring to FIG. 5, the second composite insulation panel (130) may include a fourth insulation layer (132), a sixth hold layer (133), a fifth protection layer (131, middle protection layer), and a sixth protection layer (134, upper protection layer).

[0103] The second composite insulation panel (130) may have a shape in which a fifth protection layer (131), a fourth insulation layer (132), a sixth hold layer (133), and a sixth protection layer (134) are sequentially laminated.

[0104] With reference to FIG. 3, the description of the insulation layers (112, 116), hold layers (113, 115, 117) and protection layers (111, 114, 118) of the first composite insulation panel (110) described above can be equally applied to the insulation layer (132), hold layer (133) and protection layer (131, 134) provided in the second composite insulation panel (130), and therefore, any duplicate description will be omitted below.

[0105] The second composite insulation panel (130) can be arranged on the second part (110b) of the first composite insulation panel (110) and the upper part of the connecting composite insulation panel (120) in a state where a plurality of first composite insulation panels (110) are arranged and a plurality of connecting composite insulation panels (120) are arranged between the second parts (110b) of the adjacent first composite insulation panels (110).

[0106] The second composite insulation panel (130) can be laminated on top of the second barrier (140) positioned on top of the second part (110b) of the first composite insulation panel (110) and the connecting composite insulation panel (120).

[0107] The second composite insulation panel (130) may have substantially the same area and laminated structure as the first portion (110a) of the first composite insulation panel (110) in which the first protective layer (111), the first insulation layer (112), the first hold layer (113), and the second protective layer (114) are laminated. The height of the second composite insulation panel (130) may be the same as or different from the height of the first portion (110a) of the first composite insulation panel (110).

[0108] For example, each of the fifth protective layer (131), the fourth insulating layer (132), the sixth hold layer (133), and the sixth protective layer (134) of the second composite insulating panel (130) may be understood to have substantially the same area, material, or shape as the first protective layer (111), the first insulating layer (112), the first hold layer (113), and the second protective layer (114) of the first composite insulating panel (110).

[0109] The sixth protective layer (134) of the second composite insulation panel (130) may be provided with one or more anchor strips (C1). The anchor strips (C1) are configured for welding the first barrier (150), and the fourth protective layer (124) may be provided with anchor strips (C1) to secure the first barrier (150) by welding it to the upper portion of the second composite insulation panel (130). The number and / or positions of the anchor strips (C1) provided in the fourth protective layer (124) may be variously modified to correspond to positions where welding of the first barrier (150) is required.

[0110] The fifth protective layer (131) is formed of a second barrier (140) made of a metal material and is connected to the first composite insulation panel (110) using a fastening member (C2) provided on the first composite insulation panel (110), so that the fastening member (C2) can penetrate.

[0111] Meanwhile, when the second barrier (140) is formed of a composite material and is bonded to the upper portion of the first composite insulation panel (110) and the connected composite insulation panel (120), and the second composite insulation panel (130) is bonded to the upper portion of the second barrier (140), the fifth protective layer (131) may be formed of the same material as the hold layer.

[0112] Referring to FIGS. 2 and 6, a second barrier (140) may be arranged between the upper surface of the first composite insulation panel (110) and the connecting composite insulation panel (120) and the lower surface of the second composite insulation panel (130), and a first barrier (150) may be arranged on the upper surface of the second composite insulation panel (130).

[0113] The second barrier (140) and the first barrier (150) are primarily intended to store (ensure airtightness) stored cargo. The second barrier (140) and the first barrier (150) can serve as protective layers for the composite insulation panels (110, 120, 130). The second barrier (140) and the first barrier (150) can serve as protective layers to protect the insulation layers (112, 116, 122, 132) (e.g., the first insulation material (I1) and the second insulation material (I2) of the insulation layer) from external impact.

[0114] The first barrier (150) may be formed of a metal material and may be formed in a wrinkled shape. The first barrier (150) may be formed in a wrinkled shape that can be flattened by the pressure of the composite insulation panels (110, 120, 130) of other layers as the composite insulation panels (110, 120, 130) are laminated. The first barrier (150) may be formed of stainless steel, but is not limited thereto.

[0115] The first barrier (150) can be welded and joined to an anchor strip (C1) provided on the upper surface (particularly, the sixth protective layer (134)) of the second composite insulation panel (130).

[0116] The second barrier (140) of the insulation system (100) according to the embodiments of FIGS. 2 and 6 may be formed of a metal material or a composite material, and may be formed in a flat shape. The laminated structure (connected structure) of the insulation system (100) according to the material of the second barrier (140) will be described in detail below with reference to FIGS. 7 and 8.

[0117] Hereinafter, with reference to FIGS. 2 to 6, the form in which the first composite insulation panel (110), the connecting composite insulation panel (120), and the second composite insulation panel (130) are laminated will be described.

[0118] The insulation system (100) may be laminated on top of the first composite insulation panel (110) so that the lower edge (P) of the second composite insulation panel (130) is positioned at the center of the second portion (110b) of the first composite insulation panel (110) while the second composite insulation panel (130) is staggered from the first portion (110a) of the first composite insulation panel (110), and the connecting composite insulation panel (120) may be laminated on top of the first portion (110a) of the first composite insulation panel (110) while filling the empty space between the first portion (110a) of the first composite insulation panel (110) and the second composite insulation panel (130).

[0119] Here, the empty space between the first part (110a) of the first composite insulation panel (110) and the second composite insulation panel (130) can be filled by five connected composite insulation panels (120) as a space (S) formed between four second parts (110b) based on four adjacently arranged first composite insulation panels (110).

[0120] As illustrated in FIG. 2, taking any four of the first composite insulation panels (110) as an example, the 1-2 insulation panel (110-2) may be placed on the right side of the 1-1 insulation panel (110-1) based on the 1-1 insulation panel (110-1), the 1-3 insulation panel (110-3) may be placed on the upper side of the 1-1 insulation panel (110-1), and the 1-4 insulation panel (110-4) may be placed on the right side of the 1-3 insulation panel (110-3).

[0121] When arranged in this manner, the five connecting composite insulation panels (120) are connected between the second part (110b) of the 1-1 insulation panel (110-1) and the second part (110b) of the 1-2 insulation panel (110-2) (e.g. left and right), between the second part (110b) of the 1-1 insulation panel (110-1) and the second part (110b) of the 1-3 insulation panel (110-3) (e.g. top and bottom), between the second part (110b) of the 1-2 insulation panel (110-2) and the second part (110b) of the 1-4 insulation panel (110-4) (e.g. top and bottom), between the second part (110b) of the 1-3 insulation panel (110-3) and the second part (110b) of the 1-4 insulation panel (110-4) (e.g. (left and right) and between the second part (110b) of the 1-1 insulation panel (110-1) and the second part (110b) of the 1-4 insulation panel (110-4) (e.g. diagonally).

[0122] As above, in a state where five connected composite insulation panels (120) are laminated on four first composite insulation panels (110), one second composite insulation panel (130) can be placed on top of four first composite insulation panels (110) and five connected composite insulation panels (120) so that four lower surface edges are positioned adjacent to the center portions of each of the 1-1 to 1-4 insulation panels (110-4).

[0123] When the insulation system (100) is viewed in the cross-sectional direction as shown in FIG. 6, as two first composite insulation panels (110) are arranged side by side, a space (S) is formed between their second parts (110b) in which one connecting composite insulation panel (120) is arranged, and as one second composite insulation panel (130) is arranged to be misaligned with the first part (110a) of the first composite insulation panel (110), it can overlap with a part of the second part (110b) of the first composite insulation panel (110) arranged on the left, the connecting composite insulation panel (120), and a part of the second part (110b) of the first composite insulation panel (110) arranged on the right.

[0124] When the insulation system (100) is viewed in the cross-sectional direction as shown in FIG. 6, the first composite insulation panel (110) may be formed such that the first insulation material (I1) at the center of the first insulation layer (112) and the first insulation material (I1) at the center of the second insulation layer (116) overlap in the vertical direction. The first insulation layer (112) and the second insulation layer (116) may be arranged such that the first insulation material (I1) and the second insulation material (I2) have the same structure, but the width (or cross-sectional area) of the second insulation material (I2) of the second insulation layer (116) may be smaller than that of the second insulation material of the first insulation layer (112). In addition, the connecting composite insulation panel (120) can be arranged so that the first insulation material (I1) in the center of the third insulation layer (122) overlaps the first insulation material (I1) in the edge portion of the first insulation layer (112) of each of two adjacent first composite insulation panels (110) in the vertical direction.

[0125] Meanwhile, referring to FIGS. 2 and 6, when a plurality of first composite insulation panels (110) are fixed to the inner surface (11) of the storage tank (1) through a mastic structure (160), a predetermined gap may be formed between the first portions (110a) of the adjacent first composite insulation panels (110). The connecting composite insulation panel (120) may be arranged in the space (S) between the second portions (110b) and overlap the gap between the first portions (110a), thereby insulating the space between the first portions (110a) and the inner space of the storage tank (1).

[0126] As illustrated in FIG. 6, the first composite insulation panel (110) and the connecting composite insulation panel (120) may constitute the IS (Insulation Space) region of the insulation system (100), and the second composite insulation panel (130) may constitute the IBS (Inter-Barrier Space) region of the insulation system (100).

[0127] FIG. 7 is a drawing illustrating a case where the first barrier is in the shape of a flat plate made of a composite material in an insulation system according to one embodiment of the present invention. FIG. 8 is a drawing illustrating a case where the first barrier is in the shape of a flat plate made of a metal material in an insulation system according to one embodiment of the present invention.

[0128] FIG. 7 illustrates a case where the second barrier (140) is made of a composite material in the insulation system (100) illustrated in FIGS. 2 to 6, and FIG. 8 illustrates a case where the second barrier (140) is made of a metal material in the insulation system (100) illustrated in FIGS. 2 to 6.

[0129] First, referring to FIG. 7, the second barrier (140) may have a flat plate shape and may be formed of a composite material. For example, the composite material may include, but is not limited to, a thin metal layer and multiple layers of glass fiber layers, as a material that is easily bonded to the hold layer and the protective layers at room temperature and low temperature and has the property of preventing liquid penetration. According to various embodiments, the second barrier (140) may be formed using various materials that are capable of bonding to the hold layer and the protective layers, but in particular, may not cause peeling from the hold layer and the protective layers when cooled.

[0130] A second barrier (140) formed of a flat surface and made of a composite material can be bonded to a composite insulation panel (110, 120, 130). For example, the lower surface of the second barrier (140) can be bonded to a first composite insulation panel (110) (particularly, the second portion (110b)) and a connecting composite insulation panel (120), and the upper surface of the second barrier (140) can be bonded to a second composite insulation panel (130).

[0131] When the second barrier (140) is formed of a composite material, no welding or mechanical fastening is required between the second barrier (140) and the composite insulation panel (110, 120, 130), and no mechanical fastening is required between the first composite insulation panel (110) and the second composite insulation panel (130).

[0132] When the second barrier wall (140) is formed of a composite material, a fastening member (C2) for joining the first composite insulation panel (110) and the second composite insulation panel (130) and an anchor strip (C1) for welding the second barrier wall (140) and the first composite insulation panel (110) are not required, so the first composite insulation panel (110) may not include a third protective layer (118), and the connecting composite insulation panel (120) may not include a fourth protective layer (124).

[0133] However, this does not necessarily mean that the third protective layer (118) and the fourth protective layer (124) are not essential, but are excluded. For example, even when the second barrier (140) is formed of a composite material, the third protective layer (118) and the fourth protective layer (124) may be included to protect the insulation layer.

[0134] In addition, when the second barrier (140) is formed of a composite material, the fifth protective layer (131) of the second composite insulation panel (130) may be formed of the same material as the hold layer (for example, the same material as the first insulation material (I1)).

[0135] Next, referring to FIG. 8, the second barrier (140) has a flat plate shape and can be formed of a metal material.

[0136] A second barrier (140) in the form of a flat surface formed of a metal material can be connected to a connecting composite insulation panel (120) through welding.

[0137] When the second barrier (140) is formed of a metal material, the connecting composite insulation panel (120) may be provided with an anchor strip (C1) for welding the second barrier (140). For example, the anchor strip (C1) may be provided on the fourth protective layer (124) of the connecting composite insulation panel (110, 120, 130) (e.g., the fourth protective layer (124) of FIG. 4), and the second barrier (140) may be joined to the connecting composite insulation panel (120) by welding at least a portion of the anchor strip (C1).

[0138] When the second barrier (140) is formed of a metal material, the first composite insulation panel (110) and the second composite insulation panel (130) are joined through mechanical fastening.

[0139] When the second barrier (140) is formed of a metal material, the first composite insulation panel (110) may be provided with a fastening member (C2) for fastening the second composite insulation panel (130). In response to the fastening member (C2), the second composite insulation panel (130) may be provided with a fastening hole through which the fastening member (C2) can penetrate and be coupled. The fastening hole may be formed by penetrating at least some of the plurality of layers in the vertical direction at the corner portion of the second composite insulation panel (130).

[0140] The fastening member (C2) may be formed as a stud bolt or a nut, but is not limited thereto. For example, the fastening member (C2) may be formed in a screw shape.

[0141] The fastening member (C2) may be provided in the second portion (110b) of the first composite insulation panel (110). For example, the fastening member (C2) may be provided in the third protective layer (118) of the first composite insulation panel (110) (e.g., the third protective layer (118) of FIG. 3). The fastening member (C2) may be arranged in the center of the second portion (110b) of the first composite insulation panel (110).

[0142] FIG. 9 is a drawing illustrating a modified example of an insulation system including a composite insulation panel according to one embodiment of the present invention. FIG. 10 is a drawing illustrating a second composite insulation panel of the insulation system according to the modified example illustrated in FIG. 9. FIG. 11 is a drawing illustrating a cross-section of the insulation system according to the modified example illustrated in FIG. 9.

[0143] Fig. 9 is a perspective view of an insulation system (100') according to a modified example. Fig. 10 is a perspective view and an exploded perspective view of the second composite insulation panel (130') illustrated in Fig. 9. Fig. 11 is a cross-sectional view schematically illustrating the laminated structure of the insulation system (100') illustrated in Fig. 9.

[0144] FIG. 9 illustrates an insulation system (100') that is deformed so that, compared to the insulation system (100) of FIG. 2, the second barrier (140') is deformed into a wrinkled shape, and correspondingly, a wrinkle receiving portion (135b) is formed in the second composite insulation panel (130') to receive the wrinkled portion of the second barrier (140').

[0145] Referring to FIGS. 9 to 11, an insulation system (100') according to a modified example may include a first composite insulation panel (110), a connecting composite insulation panel (120), a second composite insulation panel (130'), a second barrier wall (140'), and a first barrier wall (150).

[0146] At least some of the components of the insulation system (100') illustrated in FIG. 9 may be substantially identical or similar to the components of the insulation system (100) illustrated in FIGS. 2 to 6 (e.g., the first composite insulation panel (110), the connecting composite insulation panel (120), the second composite insulation panel (130), the second barrier (140), and the first barrier (150). Hereinafter, overlapping content will be omitted and description will be given with a focus on the modified portions and the different portions.

[0147] The second barrier wall (140') of the insulation system (100') according to the modified example may be formed in a corrugated shape. For example, the second barrier wall (140') may be formed of a metal material identical to or similar to the first barrier wall (150) and may be formed in a corrugated shape. The corrugated shapes of the second barrier wall (140') and the first barrier wall (150) may be identical to or different from each other. For example, the spacing between the corrugations, the height of the corrugations, and the shape of the corrugations of the second barrier wall (140') and the first barrier wall (150) may be identical to or different from each other.

[0148] The second barrier wall (140') may be arranged so that the wrinkle portion (141) protrudes toward the second composite insulation panel (130'). Accordingly, a void may be formed between the wrinkle portion (141) of the second barrier wall (140') and the first composite insulation panel (110) or the connecting composite insulation panel (120).

[0149] As described above, since the second barrier (140') is formed of a metal material, the first composite insulation panel (110) may be provided with a fastening member (C2), and the connecting composite insulation panel (120) may be provided with an anchor strip (C1). For example, the fastening member (C2) may be provided in the third protective layer (e.g., the third protective layer (118) of FIG. 3) of the second portion (110b) of the first composite insulation panel (110), and the anchor strip (C1) may be provided in the fourth protective layer (e.g., the fourth protective layer (124) of FIG. 4) of the connecting composite insulation panel (120).

[0150] Referring to FIG. 10, the second composite insulation panel (130') of the insulation system (100') according to the modified example may include a fourth insulation layer (132), a sixth hold layer (133), a seventh hold layer (135), a fifth protection layer (131), a sixth protection layer (134), and a seventh protection layer (136).

[0151] For example, the second composite insulation panel (130') of the insulation system (100') according to the modified example may further include a seventh hold layer (135) and a seventh protective layer (136) compared to the second composite insulation panel of the insulation system (100) according to the basic example (e.g., see the second composite insulation panel (130) of FIG. 5).

[0152] The fourth insulation layer (132), sixth hold layer (133), fifth protection layer (131), and sixth protection layer (134) provided in the second composite insulation panel (130') of FIG. 10 can be equally applied to the description given above with reference to the second composite insulation panel (130) of FIG. 5, and therefore, the description thereof will be replaced with the above description, and the added layers (e.g., the seventh hold layer (135) and the seventh protection layer (136)) will be described.

[0153] The seventh hold layer (135) may be placed on the lower surface of the fifth protective layer (131). For example, the seventh hold layer (135) may be attached to the lower surface of the fifth protective layer (131).

[0154] The seventh hold layer (135) may be a layer in which a wrinkle receiving portion (135b) is formed, in which the wrinkles of the second barrier wall (140') can be partially received. For example, as illustrated in FIG. 11, when the second barrier wall (140') is welded to the connecting composite insulation panel (120) at the upper portion of the connecting composite insulation panel (120) and the first composite insulation panel (110), and the second composite insulation panel (130') is connected to the first composite insulation panel (110) at the upper portion of the second barrier wall (140'), the wrinkle portion (141) of the second barrier wall (140') can be received inside the wrinkle receiving portion (135b).

[0155] The seventh hold layer (135) may be formed with a plurality of wrinkle receiving portions (135b) on the base portion (135a) by having at least a portion of the base portion (135a) sunken or opened in response to the wrinkles of the second barrier (140'). According to the embodiment illustrated in FIG. 10, the wrinkle receiving portions (135b) may be grooves (or recesses) in which a portion of the base portion (135a) is sunken, but the wrinkle receiving portions (135b) may also be openings in which a portion of the base portion (135a) is removed or opened.

[0156] As the wrinkle receiving portion (135b) is formed in the seventh hold layer (135), the fifth protective layer (131) can be formed with a predetermined rigidity to maintain the structural stability of the seventh hold layer (135) and reinforce the strength.

[0157] The seventh hold layer (135) may be formed of the same material as the first insulation material (I1), like the other hold layers, but is not limited thereto.

[0158] The seventh protective layer (136) may be disposed on the lower surface of the seventh hold layer (135). For example, the seventh protective layer (136) may be attached to the lower surface of the base portion (135a) of the seventh hold layer (135). The seventh protective layer (136) may have an open or cut shape in an area corresponding to the wrinkle receiving portion (135b) so that the wrinkle portion (141) of the second barrier (140') can be received in the wrinkle receiving portion (135b).

[0159] As the second barrier (140') is formed of a metal material, the second composite insulation panel (130') may be provided with a fastening hole through which a fastening member (C2) may penetrate and be joined. The fastening hole may be formed by penetrating at least some of the plurality of layers in the vertical direction at the corner portion of the second composite insulation panel (130').

[0160] Meanwhile, the illustrated embodiment is a form in which the wrinkle portion (141) of the second barrier (140') is arranged to face the second composite insulation panel (130'), but this is exemplary and the arrangement structure of the second barrier (140') is not limited to the illustrated form.

[0161] According to various embodiments, the second barrier wall (140') may be arranged so that the wrinkle portion (141) faces downward, i.e., toward the first composite insulation panel (110) and the connecting composite insulation panel (120), and correspondingly, the wrinkle receiving portion (135b) may be formed in or by the first composite insulation panel (110) and the connecting composite insulation panel (120). For example, when the wrinkle portion (141) of the second barrier wall (140') faces downward as opposed to FIGS. 9 and 10, a wrinkle receiving portion in which the wrinkle portion (141) can be partially received may be provided on the arrangement surface of the second barrier wall (140') formed by the second portion (110b) of the first composite insulation panel (110) and the connecting composite insulation panel (120).

[0162] FIG. 12 is a drawing showing a structure in which a foam member is placed in a wrinkled portion of a first barrier in an insulation system according to a modified example illustrated in FIG. 9.

[0163] FIG. 12 is a drawing for explaining a structure in which the empty space caused by the wrinkles of the second barrier (140') is filled with a foam member (170, 180) in a modified insulation system (100') in which the second barrier (140') has a wrinkled shape. Hereinafter, when explaining FIG. 12, reference will be made to FIGS. 9 to 11.

[0164] Here, the empty space formed by the wrinkles may include a space inside the wrinkle portion (141) of the second barrier wall (140') and a space between the wrinkle portion (141) of the second barrier wall (140') and the wrinkle receiving portion (135b) of the second composite insulation panel (130'). The space inside the wrinkle portion (141) of the second barrier wall (140') may mean a space between the wrinkle portion (141) and the first composite insulation panel (110) and / or between the wrinkle portion (141) and the connecting composite insulation panel (120).

[0165] Referring to FIG. 12, an insulation system (100') according to a modified example may include a first foam member (170) disposed inside a wrinkled portion (141) of a second barrier (140') and a second foam member (180) disposed on an upper portion of the wrinkled portion (141) of the second barrier (140').

[0166] The first foam member (170) can be inserted into the inside of the wrinkle portion (141) of the second barrier wall (140') to fill the space between the first composite insulation panel (110) and / or between the wrinkle portion (141) and the connecting composite insulation panel (120).

[0167] The second foam member (180) is placed on the upper part of the wrinkle portion (141) of the second barrier (140') and is accommodated inside the wrinkle receiving portion (135b) of the second composite insulation panel (130') so as to fill the space between the wrinkle portion (141) and the wrinkle receiving portion (135b).

[0168] The first foam member (170) and the second foam member (180) may be formed of a soft material that can be deformed in response to deformation of the wrinkled portion (141). The foam members (170, 180) may be formed of a soft material such as glass wool, melamine foam, or the like, but are not limited thereto. For example, the first foam member (170) and the second foam member (180) may be formed using various materials that fill the empty space created by the wrinkled portion (141) to prevent convection in the empty space, but do not hinder deformation of the wrinkled portion (141).

[0169] Hereinafter, various embodiments of the arrangement of the first insulation material (I1) and the second insulation material (I2) within the insulation layer (1110) will be described with reference to FIGS. 13 and 14. The insulation layer (1110) refers to a layer including the first insulation material (I1) and the second insulation material (I2), and the first insulation layer (112), the second insulation layer (116), the third insulation layer (122), and the fourth insulation layer (132) described above can be configured like the insulation layer (1110).

[0170] Figure 13 is a drawing illustrating a composite insulation panel.

[0171] FIG. 14 is a drawing illustrating a composite insulation panel according to another embodiment than FIG. 13.

[0172] Figures 13 and 14 are cross-sectional views of an insulation layer (1110). Figure 13 is a cross-sectional view showing an open side of the first insulation material (I1), and Figure 14 is a cross-sectional view showing a closed side of the first insulation material (I1).

[0173] Referring to Fig. 13, shape 711 may include two first insulating materials (I1) and one second insulating material (I2). In shape 711, the first insulating material (I1) and the second insulating material (I2) may be formed with a rectangular cross-section that extends longer in the Y direction than in the X direction. The area occupied by the first insulating material (I1) may be smaller than the area occupied by the second insulating material (I2).

[0174] The 712 shape may include three first insulation materials (I1) and two second insulation materials (I2). In the 712 shape, the first insulation materials (I1) and the second insulation materials (I2) may also be formed as a rectangular cross-section that extends longer in the Y direction than in the X direction. The second insulation materials (I2) may be divided into two by the first insulation materials (I1).

[0175] The 713 shape may include one first insulating material (I1) and two second insulating materials (I2). In the 713 shape, the second insulating material (I2) may be formed with a rectangular cross-section that extends longer in the X direction than in the Y direction. The area occupied by the first insulating material (I1) may be smaller than the area occupied by the second insulating material (I2). The first insulating material (I1) may be formed in an H shape.

[0176] The 714 shape may include one first insulation material (I1) and four second insulation materials (I2). In the 713 shape, the second insulation material (I2) may be formed with a rectangular cross-section that extends longer in the Y direction than in the X direction. The first insulation material (I1) may be formed with a cross-section that is a combination of two H shapes.

[0177] The 715 shape may include one first insulation material (I1) and four second insulation materials (I2). In the 715 shape, the second insulation material (I2) may be formed with a cross-section of a right triangle. The first insulation material (I1) may be formed in an X shape.

[0178] The 716 shape may include one first insulating material (I1) and four second insulating materials (I2). In the 716 shape, the second insulating material (I2) may be formed with a trapezoidal cross-section. The first insulating material (I1) may be formed with an X-shape with a central portion corresponding to the shape of the second insulating material (I2).

[0179] The 717 shape may include one first insulating material (I1) and four second insulating materials (I2). In the 717 shape, the second insulating material (I2) may be formed as a hexagonal cross-section with a pair of parallel sides. The first insulating material (I1) may be formed in an X-shape with a central portion corresponding to the shape of the second insulating material (I2).

[0180] The 718 shape may include one first insulating material (I1) and four second insulating materials (I2). In the 718 shape, the second insulating material (I2) may be formed with a semicircular cross-section. The first insulating material (I1) may be formed in an X-shape with a central portion corresponding to the shape of the second insulating material (I2).

[0181] Referring to Fig. 14, shape 811 may include one first insulating material (I1) and one second insulating material (I2). In shape 811, an internal space (800) may be formed in the first insulating material (I1), and a second insulating material (I2) may be arranged in the internal space (800). The first insulating material (I1) may be formed in a form that surrounds the second insulating material (I2). The area occupied by the first insulating material (I1) may be smaller than the area occupied by the second insulating material (I2).

[0182] The 812 shape may include one first insulating material (I1) and two second insulating materials (I2). In the 812 shape, two internal spaces (800) may be formed in the first insulating material (I1), and the second insulating materials (I2) may be arranged in the two internal spaces (800). The first insulating material (I1) may be formed in a shape that surrounds the second insulating material (I2).

[0183] The 813 shape may include one first insulating material (I1) and three second insulating materials (I2). In the 813 shape, three internal spaces (800) may be formed in the first insulating material (I1), and second insulating materials (I2) may be arranged in the three internal spaces (800). The first insulating material (I1) may be formed in a shape that surrounds the second insulating material (I2).

[0184] The 814 shape may include one first insulating material (I1) and four second insulating materials (I2). In the 814 shape, four internal spaces (800) may be formed in the first insulating material (I1), and second insulating materials (I2) may be arranged in the four internal spaces (800). The first insulating material (I1) may be formed in a shape that surrounds the second insulating material (I2).

[0185] The above-described first composite insulation panel (110), the connected composite insulation panel (120), and the second composite insulation panel (130, 130') may include at least one of the 711 shape, the 712 shape, the 713 shape, the 714 shape, the 715 shape, the 716 shape, the 717 shape, the 718 shape, the 811 shape, the 812 shape, the 813 shape, and the 814 shape. For example, the insulation system (100) may include composite insulation panels (110, 120, 130) including the 711 shape and the 812 shape.

[0186] The aforementioned shapes 711, 712, 713, 714, 715, 716, 717, 718, 811, 812, 813, and 814 are merely examples, and the shape of the insulation layer (112) is not limited thereto.

[0187] Hereinafter, with reference to FIGS. 15 to 21, a misalignment prevention structure (2030) that can prevent misalignment when bonding an insulation layer (2010) and a protection layer (2020) in a composite insulation panel (2001) will be described.

[0188] The composite insulation panel (2001) may refer to a composite insulation panel configured such that a protection layer (2020) is bonded to the upper or lower portion of an insulation layer (2010). For example, the first composite insulation panel (110) described above is a composite insulation panel in which a first protection layer (111) is arranged under a first insulation layer (112), and the misalignment prevention structure (2030) may be applied in the same manner. Alternatively, the second composite insulation panel (130') described above is a composite insulation panel in which a fifth protection layer (131) is arranged under a fourth insulation layer (132), and the misalignment prevention structure (2030) may be applied in the same manner.

[0189] Figure 15 is a drawing showing the process of laminating a protective layer on an insulation layer during the process of manufacturing an insulation panel.

[0190] Fig. 16 is a drawing showing a composite insulation panel in which a protective layer is combined on top of an insulation layer in a conventional manner.

[0191] Conventionally, in the manufacturing process of an insulated panel containing a single type of insulation, there is a step of applying adhesive to the insulation layer containing the insulation and then laminating a protective layer, such as plywood, over it. During this process, misalignment between the insulation layer and the protective layer occurs due to manufacturing tolerances or slippage during the pressing process. This misalignment was previously eliminated through cutting, and insulation made of polyurethane foam did not lose performance even after cutting. However, in the case of a composite insulation panel containing a vacuum insulation, cutting can damage the outer skin of the vacuum insulation, and since vacuum insulation is a product that maintains a vacuum by its outer skin, there is a problem of functional loss. Below, a conventional insulation panel manufacturing method and the problems that arise when applying the method to a composite insulation panel are described.

[0192] Referring to Fig. 15, first, an adhesive (2130) such as glue is applied to the upper portion of the insulating layer (2110). Then, a protective layer (2120) is stacked on top of the insulating layer (2110) so as to overlap the upper portion of the insulating layer (2110). During this process, a misalignment occurs between the insulating layer (2110) and the protective layer (2120).

[0193] Specifically, there are cases where one end of the lower portion of the protective layer (2120) protrudes further than the corresponding end of the insulating layer (2110), or one end of the lower portion of the protective layer (2120) does not reach the corresponding end of the insulating layer (2110).

[0194] This phenomenon may occur for the following two reasons. First, the protective layer (2120) is manufactured to match the shape and size of the insulating layer (2110), but manufacturing tolerances may occur during this process. Second, the protective layer (2120) may undergo a pressing process to adhere to the insulating layer (2110), and during this process, slippage may occur due to the adhesive (2130).

[0195] In the past, rather than preventing misalignment between the insulation layer (2110) and the protective layer (2120), the misaligned portion was removed through post-processing, such as cutting. In the case of conventional insulation materials composed solely of polyurethane foam, this manufacturing method was not problematic because cutting did not result in any degradation in performance.

[0196] However, in the case of the composite insulation panel (2001), a second insulation material (I2) made of vacuum insulation is included, and the outer skin of the vacuum insulation material may be damaged during cutting, which may result in loss of the function of the vacuum insulation material.

[0197] Referring to FIG. 16, the composite heat insulation panel (2001) may be composed of a heat insulation layer (2010) including a first heat insulation material (I1) and a second heat insulation material (I2), and a protection layer (2020).

[0198] In the heat insulation layer (2010), the first heat insulation material (I1) is formed in an H shape, and the second heat insulation material (I2) fills the empty space, but the structure of the heat insulation layer (2010) is not limited thereto. For example, the first heat insulation material (I1) may have various shapes such as a square, a king character, a sun character, and a field character in addition to the H shape.

[0199] At this time, the first heat insulation material (I1) not only serves as heat insulation but also has relatively high structural strength, so it can surround and protect the second heat insulation material (I2). The second heat insulation material (I2) has a relatively lower thermal conductivity, so it can have better heat insulation performance than when it is only made of the first heat insulation material (I1). However, in the case of the second heat insulation material (I2), it is a product in which a vacuum is maintained by an outer skin material. If the outer skin is damaged, the internal vacuum cannot be maintained, resulting in a problem of reduced heat insulation performance.

[0200] However, as described above, in the conventional method during cutting processing, the outer skin of the second heat insulation material (I2) is damaged, and thus the function as a vacuum heat insulation material may be lost. Therefore, in order to solve this problem, the present invention forms a misalignment prevention structure (2030) between the heat insulation layer (2010) and the protection layer (2020), so that misalignment does not occur during the bonding process of the heat insulation layer (2010) and the protection layer (2020), and cutting processing is not required. The misalignment prevention structure (2030) will be described in detail through several embodiments.

[0201] <Misalignment Prevention Structure of the First Embodiment>

[0202] FIG. 17 is a diagram showing a misalignment prevention structure according to the first embodiment of the present invention.

[0203] The misalignment prevention structure (2030) may be composed of a protrusion (2031) formed on the first heat insulation material (I1) and a groove (2032) having a shape corresponding to the protrusion.

[0204] The protrusion (2031) is not combined with a separate structure, and may be formed by partially modifying the shape of the first heat insulation material (I1) itself. The groove (2032) may have a shape corresponding to the protrusion (2031). That is, the groove (2032) may have a shape that is fixed so as not to move when combined with the protrusion (2031).

[0205] When the protective layer (2020) is combined with the heat insulation layer (2010), by combining the protrusion (2031) with the groove (2032) and fixing it, slippage does not occur during the adhesion process, so misalignment between the heat insulation layer (2020) and the protective layer (2020) can be prevented.

[0206] Referring to FIG. 17, the protrusion (2031) of the first heat insulation material (I1) may be formed in a form in which a part of the first heat insulation material (I1) extends vertically in the height direction of the heat insulation layer (2010).

[0207] The protective layer (2020) may have a groove (2032) formed in accordance with the shape of the protrusion (2031). FIG. 17 shows that the protrusion (2031) is formed in the middle part of the 工 character, which is only an example and is not limited thereto.

[0208] For example, it may be formed at the edge part of the 工 character, some other area, or the entire area. The fact that the first heat insulation material (I1) in the heat insulation layer (2010) is in the shape of the 工 character is also only an example and is not limited thereto.

[0209] In another form, the first insulation material (I1) and the second insulation material (I2) can be combined, and accordingly, the protrusions (2031) can be formed in various positions and shapes. In addition, the protrusions (2031) all extend in the height direction at the same height, but as long as misalignment can be prevented, the protrusions (2031) can be formed in other shapes where the heights are not uniform. The depth of the groove (2032) can be formed within 2 mm, but this value is only an example and is not limited thereto.

[0210] <Misalignment prevention structure of the second embodiment>

[0211] Fig. 18 is a drawing showing a misalignment prevention structure according to a second embodiment of the present invention.

[0212] Figure 19 is a drawing showing a misalignment prevention structure that improves manufacturability in the second embodiment of the present invention.

[0213] The misalignment prevention structure (2030) may include a key hole (2033) formed in the first insulating material (I1) and the protective layer (2020), respectively, and a key (2034) corresponding to the key hole.

[0214] The key hole (2033) and the key (2034) fit perfectly together, so that each member having the key hole (2033) is fixed through the key (2034). The key hole (2033) is formed in each of the first insulating material (I1) and the protective layer (2020), and each key hole (2033) corresponds to each other, that is, each key hole (2033) is connected to each other to form a single empty space. Since the key (2034) that fits perfectly into the empty space is constructed and fixed, slip does not occur during the bonding process, and thus misalignment of the insulating layer (2010) and the protective layer (2020) can be prevented.

[0215] Referring to FIG. 18, a cylindrical key (2034) can be inserted into a keyhole (2033) formed in the first heat insulation material (I1) and the protective layer (2020) to fix each member. The diameter of the key (2034) can be formed to be 10 - 20 mm and the height to be 10 mm, and the keyhole (2033) can be formed to have a depth of 5 mm. However, these values are only examples and are not limited thereto. The shape of the key (2034) is also not limited to a cylindrical shape.

[0216] The keyhole (2033) and the key (2034) can be made into a shape that improves manufacturability as shown in FIG. 19. Such a conical or quadrangular pyramid shape can facilitate the installation when inserting the key into the keyhole. Also, in FIG. 18, the positions where the keyhole (2033) and the key (2034) are constructed appear at the four corners of the worker, but the positions and the number are not limited thereto.

[0217] The misalignment prevention structure according to the second embodiment is simple to process because only the keyhole (2033) needs to be processed.

[0218] <<Misalignment prevention structure of the third embodiment>>

[0219] FIG. 20 is a diagram showing a misalignment prevention structure according to the third embodiment of the present invention.

[0220] The misalignment prevention structure (2030) may include a through hole (2036) formed in the protective layer (2020), a hole (2037) formed in the first heat insulation material (I1), and a fixing member (2038).

[0221] Referring to FIG. 20, a hole (2037) can be formed in the first heat insulation material (I1), and a through hole (2036) that is connected to the hole (2037) and extends to the outside can be formed in the protective layer (2020). The fixing member (2038) enters from the outside of the protective layer (2020), passes through the through hole (2036), and is inserted into the hole (2037) to be fixed.

[0222] Figure 20 shows a wedge-shaped fixing member (2038), a through hole (2036) and a hole (2037) having a corresponding shape. The shape of the fixing member (2038) is not limited thereto. In addition, Figure 20 shows that the position where external insertion is made appears at the four corners of the worker. The position and the number thereof are not limited thereto.

[0223] The misalignment prevention structure according to the third embodiment is easy to operate because the through hole (2036) and the hole (2037) can be processed at once in a state where the first heat insulating material (I1) and the protective layer (2020) are attached during processing.

[0224] A method for manufacturing the composite heat insulating panel (2001) for preventing misalignment between the protective layer (2020) and the heat insulating layer (2010) of the composite heat insulating panel (2001) is as follows.

[0225] First, a heat insulating layer (2010) including a first heat insulating material (I1) and a second heat insulating material (I2) formed of a material different from the first heat insulating material (I1) is prepared. At this time, the first heat insulating material (I1) may have better structural strength than the second heat insulating material (I2), and the second heat insulating material (I2) may have better heat insulating performance than the first heat insulating material (I1).

[0226] Next, a protective layer (2020) disposed above or below the heat insulating layer (2010) and serving to protect the heat insulating layer (2010) is prepared. At this time, the protective layer (2020) may be made of plywood.

[0227] Next, a misalignment prevention structure is formed on the heat insulating layer (2010) and the protective layer (2020). At this time, the misalignment prevention structure may be a misalignment prevention structure according to the first to third embodiments of the present invention.

[0228] Next, an adhesive (2040) is applied to a portion where the heat insulating layer (2010) and the protective layer (2020) are to be joined.

[0229] Finally, the insulation layer (2010) and the protection layer (2020) are joined together through a misalignment prevention structure formed in the insulation layer (2010) and the protection layer (2020).

[0230] Through the above process, the protective layer (2010) and the insulation layer (2020) can be joined without misalignment, and thus, there is no need for a process of cutting and removing the misaligned portion.

[0231] Meanwhile, in the process of combining the protective layer (2010) and the insulating layer (2020), the adhesive (2040) may leak out, and thus need to be removed. Referring to FIG. 15, in the conventional method of manufacturing an insulating panel (2100), the adhesive (2130) that leaked out of the upper or lower surface of the insulating layer (2110) was removed through cutting processing. However, in the method of manufacturing a composite insulating panel of the present invention, there is no cutting processing step, so the adhesive (2040) must be removed through another method.

[0232] Referring to Fig. 21, before bonding the protective layer (2020) to the insulating layer (2010), masking tape (2041) is attached in advance to the side of the insulating layer (2010), that is, to the portion excluding the upper and lower surfaces. After the bonding process is completed and the masking tape (2041) is removed, the leaked adhesive (2040) is attached to the masking tape (2041) and is removed together. Through this method, only the adhesive (2040) can be removed without damaging the insulating layer (2010) and the protective layer (2020).

[0233] Although the present invention has been described with reference to the above embodiments, it will be understood by those skilled in the art that various modifications and changes can be made to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below.

Claims

1. A first part comprising a first insulating layer; and a second part comprising a second insulating layer and attached to the upper surface of the first part; A multi-layer composite insulation panel, wherein each of the first insulation layer and the second insulation layer includes a first insulation material and a second insulation material formed of a material different from the first insulation material.

2. In paragraph 1, A double-layer composite insulation panel in which the upper and lower surfaces of the second portion have a smaller area than the upper and lower surfaces of the first portion.

3. In paragraph 1, A multi-layer composite insulation panel, wherein the first part further comprises a first hold layer disposed on top of the first insulation layer and a lower protective layer disposed under the first insulation layer.

4. In paragraph 3, A double-layer composite insulation panel further comprising a misalignment prevention structure that prevents misalignment when the first insulation layer and the lower protective layer are bonded.

5. In paragraph 3, A multi-layer composite insulation panel, wherein the second part further includes a second hold layer disposed below the second insulation layer and a third hold layer disposed above the second insulation layer.

6. In paragraph 5, A multi-layer composite insulation panel, wherein at least one of the first hold layer, the second hold layer, and the third hold layer is formed of the same material as the first insulation material.

7. In an insulation system including a plurality of double-layer composite insulation panels according to any one of clauses 1 to 6, A plurality of connecting composite insulation panels including a third insulation layer and disposed between the second portions of adjacent multi-layer composite insulation panels among a plurality of multi-layer composite insulation panels; and A fourth insulation layer is included, and a plurality of upper composite insulation panels are laminated on top of the plurality of multi-layer composite insulation panels and the plurality of connected composite insulation panels; An insulation system, wherein each of the third insulation layer and the fourth insulation layer comprises the first insulation material and the second insulation material.

8. In paragraph 7, When the above multiple double-layer composite insulation panels are arranged in a row, a rough pattern is formed by the space between the adjacent second parts. An insulation system in which the above plurality of connected composite insulation panels are inserted into the space and connect the adjacent second parts.

9. In paragraph 7, The above-mentioned connecting composite insulation panel is, An insulation system further comprising a fourth hold layer disposed below the third insulation layer and a fifth hold layer disposed above the third insulation layer.

10. In paragraph 7, The above upper layer composite insulation panel, Further comprising a sixth holding layer disposed on top of the fourth insulating layer; An insulation system in which an upper protective layer having anchor strips is placed on top of the sixth hold layer.

11. In paragraph 10, A second barrier placed on top of the above-mentioned multi-layer composite insulation panel and the above-mentioned connecting composite insulation panel; and An insulation system further comprising a first barrier disposed on top of the upper composite insulation panel.

12. In paragraph 11, The above second barrier has a flat shape and is formed of a composite material, The lower surface of the second barrier is bonded to the double-layer composite insulation panel and the connecting composite insulation panel, An insulation system in which the upper surface of the second barrier is bonded to the upper composite insulation panel.

13. In paragraph 11, The above second barrier has a flat shape and is formed of a metal material, The upper surface of the above-mentioned connecting composite insulation panel is provided with an anchor strip for welding the second barrier, An insulation system, wherein a fastening member for joining the upper layer composite insulation panel is provided on the upper surface of the second part of the double-layer composite insulation panel.

14. In paragraph 11, The above second barrier is, It includes a plurality of wrinkled portions and is formed of a metal material, and the plurality of wrinkled portions are arranged so as to face the upper composite insulation panel. The above upper layer composite insulation panel, An insulation system, wherein a wrinkle receiving portion is formed in at least a portion of a lower surface to receive the plurality of wrinkle portions.

15. In paragraph 14, The above upper layer composite insulation panel, Further comprising a seventh hold layer disposed under the fourth insulating layer and in which the wrinkle receiving portion is formed; An intermediate protective layer having a predetermined rigidity is placed between the fourth insulating layer and the seventh holding layer. The above wrinkle receiving portion is, An insulation system, wherein at least a portion of the seventh hold layer has a sunken groove shape or at least a portion of the seventh hold layer has an open aperture shape.

Images