Liquid tank insulation device and cryogenic liquid tank equipment using the same

Abstract

The present application belongs to the field of ship design technology and provides a liquid tank insulation device, including an insulation panel assembly, a fastening assembly, a sealing assembly and an insulation protection layer. The insulation panel assembly is distributed around the fastening assembly. When in use, the fastening assembly can fix the insulation panel assembly on the surface of the low-temperature liquid tank equipment. The insulation panel assembly includes a first insulation part, a second insulation part and an insulation reinforcement layer for connecting the two. The second insulation part includes a first insulation shell plate, a second insulation shell plate and a vacuum insulation panel. The sealing assembly is filled between adjacent second insulation parts. The insulation protection layer is located on the surface of the second insulation part away from the first insulation part to protect the insulation part assembly. The liquid tank insulation device has excellent insulation effect, can adapt to a variety of complex curved surfaces, reduces manufacturing costs, and enhances the overall strength of the liquid tank insulation device. The present application also provides a low-temperature liquid tank equipment, including the above-mentioned liquid tank insulation device.

Description

Technical Field

[0001] The present application relates to the technical field of ship design, and in particular to a liquid tank insulation device and a cryogenic liquid tank equipment using the same. Background Art

[0002] A liquid tank is a liquid-tight container used to hold cryogenic liquids. In ship design, the overall structure and stability of the vessel must be considered. To adapt to the vessel's structure, tanks can be prismatic, irregularly shaped, capsule-shaped, or spherical. To maintain stable temperature and pressure of the cryogenic liquid within the tank, an insulating layer is required on the tank surface to control the pressure, temperature, and evaporation rate of the cryogenic liquid within the tank to the designed level, thereby ensuring the stability and safety of the cryogenic liquid during transportation.

[0003] Existing cryogenic liquid tanks, when used to store ultra-cold liquids below -196°C, face a problem. Conventional tank insulation systems have relatively high thermal conductivity, which limits the heat flow into the tank. This often results in the evaporation rate of the liquid within the tank failing to meet design requirements. Furthermore, due to the relatively low strength of conventional tank insulation systems, deformation of the tank while storing ultra-cold liquids can cause cracking in the insulation system, reducing its effectiveness and hindering the storage and transportation of ultra-cold liquids. Therefore, there is an urgent need for a tank insulation device that can limit heat flow within the ultra-cold liquid tank, improving its insulation effectiveness and enabling it to meet design requirements. Summary of the Invention

[0004] The purpose of this application is to provide a liquid tank insulation device and a cryogenic liquid tank equipment using the same, which is used to ensure the stability and reliability of loading and transporting cryogenic and ultra-cold liquids on ships.

[0005] To achieve the above-mentioned and other related purposes, the present application provides a liquid tank insulation device for use in cryogenic liquid tank equipment, comprising:

[0006] A plurality of insulation panel assemblies, each comprising a first insulation portion, a second insulation portion, and an insulation reinforcement layer, wherein two opposing outer surfaces of the first insulation portion are respectively designated as a first surface and a second surface, the second insulation portion is located on the second surface, the insulation reinforcement layer is located between the first insulation portion and the second insulation portion and covers the second surface, and a projection of the second insulation portion on the second surface is located within the second surface;

[0007] a fastening assembly comprising a fixing block and a connecting portion penetrating the fixing block, wherein a plurality of the thermal insulation panel assemblies are distributed around the fastening assembly along a first direction, wherein the fixing block is located on a surface of the thermal insulation reinforcement layer on a side away from the first thermal insulation portion, and wherein the first direction is a direction surrounding and perpendicular to a longitudinal centerline of the fastening assembly;

[0008] a sealing assembly located between two adjacent second heat insulating portions and on a surface of the fixing block away from the first heat insulating portion;

[0009] The heat-insulating protective layer is located on the surface of the second heat-insulating portion and the sealing component away from the first heat-insulating portion.

[0010] Optionally, the second insulation part includes a first insulation shell plate, a second insulation shell plate and a vacuum insulation panel, the first insulation shell plate and the second insulation shell plate are both box-type structures, the second insulation shell plate is located in the box-type structure of the first insulation shell plate, and the vacuum insulation panel is located in the box-type structure of the second insulation shell plate.

[0011] Optionally, the vacuum insulation panel includes an insulating core panel, an airtight barrier layer and a gas adsorption layer, the airtight barrier layer is a box-type structure, the insulating core panel is located in the box-type structure of the airtight barrier layer, and the gas adsorption layer is located between the insulating core panel and the airtight barrier layer.

[0012] Optionally, the connecting part includes a connecting rod and a fastening head, a first groove is provided on the side of the fixing block away from the first insulation part, a first through hole is opened on the bottom surface of the first groove of the fixing block, the connecting rod passes through the first through hole and is located in the first groove, and the fastening head is located in the first groove and connected to the connecting rod.

[0013] Optionally, the sealing assembly includes:

[0014] a sealing portion, comprising a sealing block and a sealing strip, wherein the sealing block is located on a surface of the fixing block away from the first thermal insulation portion, the sealing strip is located on a surface of the thermal insulation reinforcement layer away from the first thermal insulation portion, and is located between two adjacent second thermal insulation portions, a second groove is provided on a surface of the sealing block away from the first thermal insulation portion, and a third groove is provided on a surface of the sealing strip away from the first thermal insulation portion;

[0015] a bonding portion located between the sealing portion and the second heat insulating portion;

[0016] The expansion portion includes an expansion block and an expansion strip, wherein the expansion block is located in the second groove, and the expansion strip is located in the third groove. The expansion portion is used to make the sealing portion abut against the second insulation portion through the bonding portion.

[0017] Optionally, the first heat insulating portion is one of a triangular plate structure, a square plate structure and a hexagonal plate structure, and the structure of the second heat insulating portion is the same as that of the first heat insulating portion.

[0018] Optionally, when the first heat insulating portion is a triangular plate structure, the fixing block is a six-claw structure;

[0019] When the first heat insulating portion is a square plate structure, the fixing block is a cross-shaped structure;

[0020] When the first heat insulating portion is a regular hexagonal plate structure, the fixing block is a three-claw structure.

[0021] Optionally, the liquid tank insulation device further includes an insulation filling layer for filling the gaps between adjacent first insulation parts and the gap between the fixing block and the second insulation part.

[0022] The present application also provides a cryogenic liquid tank device, comprising a tank body and a liquid tank insulation system covering a surface of the tank body, wherein the liquid tank insulation system comprises the liquid tank insulation device according to any one of the aforementioned embodiments;

[0023] The tank body includes a liquid tank outer plate, and the liquid tank thermal insulation system is connected to the liquid tank outer plate through a fastening assembly so that the first surface of the first thermal insulation part is in contact with the liquid tank outer plate.

[0024] Optionally, the liquid tank insulation system includes multiple liquid tank insulation devices, and the multiple fastening components of the liquid tank insulation system are distributed in an array on the outer surface of the liquid tank outer plate, and the same insulation plate component is connected to at least three of the fastening components.

[0025] The liquid tank insulation device provided in this application and the cryogenic liquid tank equipment using the same have at least the following beneficial effects:

[0026] In the liquid tank insulation device of the present application, the insulation panel assembly is used to isolate heat transfer, the second insulation part is connected to the first insulation part through the insulation reinforcement layer, and the second insulation part includes a first insulation shell plate, a second insulation shell plate and a vacuum insulation panel arranged in sequence from the outside to the inside, so that the insulation panel assembly has excellent thermal insulation effect; the vacuum insulation panel includes an airtight barrier layer and an insulation core plate located in the airtight barrier layer, and a gas adsorption layer is provided between the airtight barrier layer and the insulation core plate, which further improves the thermal insulation effect of the insulation panel assembly; the structure and size of the insulation panel assembly can be set according to the structure of the actual low-temperature liquid tank, and can be applied to a variety of complex structure liquid tanks, thereby improving its applicability and installation and manufacturing cost; multiple insulation panel assemblies are arranged around the fastening assembly, and adjacent insulation panels are fastened to the assembly. The gaps between the heat plate assemblies are filled with an insulating filling layer, which can effectively avoid quality problems such as cracking while ensuring the insulation effect, thereby improving the applicability of the liquid tank insulation device; the fastening assembly includes a connecting portion and a fixing block, and the liquid tank insulation device can be fixed to the surface of the low-temperature liquid tank equipment through the connecting portion and the fixing block; the sealing assembly is arranged between the second insulation parts, wherein the sealing part is connected to the second insulation part through the bonding part, and the expansion part is arranged in the third groove and the second groove. The expansion of the expansion part makes the sealing assembly abut against the second insulation part, which can improve the insulation effect of the liquid tank insulation device; the outer side of the liquid tank insulation device is provided with an insulating protective layer, which can protect the internal structure from being damaged by the external environment and causing a reduction in the insulation effect. The low-temperature liquid tank equipment provided in the present application includes any one of the liquid tank insulation devices in the above-mentioned embodiments, and therefore also has the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 Shown is a structural schematic diagram of the cryogenic liquid tank equipment provided in Example 1 of the present application.

[0029] Figure 2 Shown is a schematic structural diagram of the liquid tank insulation device provided in Example 1 of the present application.

[0030] Figure 3 Display as Figure 2 The cross-sectional view of the liquid tank insulation device along the AA' direction is shown.

[0031] Figure 4 Display as Figure 2 The cross-sectional view of the liquid tank insulation device along the C-C' direction is shown.

[0032] Figure 5 Shown is a top view of the insulation panel assembly provided in Example 1 of the present application.

[0033] Figure 6 Display as Figure 5 The cross-sectional view of the insulation panel assembly is shown along the BB' direction.

[0034] Figure 7 Display as Figure 6 Schematic diagram of the structure of the vacuum insulation panel in the insulation panel assembly shown.

[0035] Figure 8 Display as Figure 3 The schematic diagram of the structure of the fastening assembly in the liquid tank insulation device is shown.

[0036] Figure 9 Display as Figure 8 The schematic diagram of the structure of the fixing block in the fastening assembly is shown.

[0037] Figure 10 Shown is a structural schematic diagram of a fixing block provided in an optional embodiment of the first embodiment of the present application.

[0038] Figure 11 Display as Figure 3 The schematic diagram of the structure of the sealing component in the liquid tank insulation device is shown.

[0039] Figure 12 Display as Figure 4 Schematic diagram of the structure of the sealing component in the liquid tank insulation device shown.

[0040] Figure 13 Shown is a structural schematic diagram of a fixing block provided in an optional embodiment of the first embodiment of the present application.

[0041] Figure 14 Shown is a schematic structural diagram of the cryogenic liquid tank equipment provided in Example 2 of the present application.

[0042] Figure 15 Shown is a schematic diagram of the distribution of multiple fastening components provided in Example 2 of the present application.

[0043] Figure 16 Shown is another distribution diagram of multiple fastening components provided in the second embodiment of the present application.

[0044] Reference numerals:

[0045] 1. Liquid tank insulation device; 11. Insulation panel assembly; 111. First insulation portion; 1111. First surface; 1112. Second surface; 112. Second insulation portion; 1121. First insulation shell; 1122. Second insulation shell; 1123. Vacuum insulation panel; 1101. Insulation core; 1102. Airtight barrier layer; 1103. Gas adsorption layer; 113. Insulation reinforcement layer; 12. Fastening assembly; 121. Fixing block; 1211. First groove; 1 212. First through hole; 122. Connecting portion; 1221. Connecting rod; 1222. Fastening head; 13. Sealing assembly; 131. Sealing portion; 1311. Sealing block; 1301. Second groove; 1312. Sealing strip; 1302. Third groove; 132. Adhesive portion; 133. Expansion portion; 1331. Expansion block; 1332. Expansion strip; 14. Thermal insulation protective layer; 15. Thermal insulation filling layer; 2. Liquid tank insulation system; 3. Tank body; 31. Tank outer plate. DETAILED DESCRIPTION

[0046] To make the technical objectives, technical solutions, and technical effects of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with embodiments. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Generally, the components of the embodiments of this application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but rather merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application without creative effort are within the scope of protection of this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance.

[0048] In the description of this application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0049] In the description of this application, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. In addition, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the implementation or example are included in at least one implementation or example of this application. In this specification, the schematic representation of the above terms does not necessarily refer to the same implementation or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more implementations or examples in a suitable scheme.

[0050] Example 1

[0051] This embodiment provides a liquid tank insulation device 1, which is used in cryogenic liquid tank equipment to ensure the stability and reliability of ships loading and transporting cryogenic liquids and ultra-cold liquids. Figures 1 to 4 The liquid tank insulation device 1 of this embodiment includes an insulation plate assembly 11, a fastening assembly 12, a sealing assembly 13 and an insulation protection layer 14.

[0052] In the liquid tank insulation device 1 of this embodiment, there are multiple insulation plate assemblies 11, and the insulation plate assemblies 11 include a first insulation part 111, a second insulation part 112 and an insulation reinforcement layer 113. The two opposite outer surfaces of the first insulation part 111 are respectively recorded as the first surface 1111 and the second surface 1112. The second insulation part 112 is located on the second surface 1112. The insulation reinforcement layer 113 is located between the first insulation part 111 and the second insulation part 112 and covers the second surface 1112. Optionally, the projection of the second insulation part 112 on the second surface 1112 is located within the second surface 1112, so that the second insulation part 112 and the first insulation part 111 are stepped. The fastening assembly 12 includes a fixing block 121 and a connecting portion 122 that passes through the fixing block 121. Multiple insulation panel assemblies 11 are distributed around the fastening assembly 12 along a first direction. The fixing block 121 is located on the surface of the insulation reinforcement layer 113 on the side away from the first insulation portion 111. The first direction is a direction surrounding and perpendicular to the longitudinal centerline of the fastening assembly 12, and the longitudinal direction of the fastening assembly 12 is consistent with the longitudinal direction of the connecting portion 122. The sealing assembly 13 is located between two adjacent second insulation portions 112 and on the surface of the fixing block 121 on the side away from the first surface 1111, and is used to fill the gaps between the second insulation portions 112 and between the second insulation portion 112 and the fixing block 121. The insulation protection layer 14 is located on the surface of the second insulation portion 112 and the fixing block 121 on the side away from the first insulation portion 111, and is used to protect the internal structure of the liquid tank insulation device 1 from damage caused by the external environment, thereby reducing the insulation effect.

[0053] Reference Figure 5 and Figure 6 In this embodiment, the second insulation portion 112 includes a first insulation shell panel 1121, a second insulation shell panel 1122, and a vacuum insulation panel 1123. The first insulation shell panel 1121 and the second insulation shell panel 1122 both have box-type structures. The second insulation shell panel 1122 is located within the box-type structure of the first insulation shell panel 1121, and the vacuum insulation panel 1123 is located within the box-type structure of the second insulation shell panel 1122, so that the second insulation shell panel 1122 is located between the first insulation shell panel 1121 and the vacuum insulation panel 1123. The first insulation shell panel 1121 of the second insulation portion 112 is connected to the first insulation portion 111 via the insulation reinforcement layer 113.

[0054] In an optional embodiment, the material of the first insulation part 111 is a hard insulation material, including but not limited to polyurethane foam plastic, polystyrene foam plastic, polyethylene plastic, phenolic foam plastic, etc.; the material of the second insulation shell plate 1122 of the second insulation part 112 is a hard insulation material, including but not limited to polyurethane foam plastic, polystyrene foam plastic, polyethylene plastic, phenolic foam plastic, etc. Optionally, the material of the first insulation part 111 is the same as the material of the second insulation shell plate 1122; the second insulation shell plate 1122 and the first insulation part 111 have excellent insulation effect to ensure that the insulation plate assembly 11 also has excellent insulation effect. The first insulating shell 1121 of the second insulating portion 112 is made of a fiber-reinforced composite material, optionally a carbon fiber-reinforced resin composite material layer. The first insulating shell 1121 effectively protects the second insulating shell 1122 and the vacuum insulation panel 1123, preventing damage from the external environment and thus reducing the insulation effect. Furthermore, the first insulating shell 1121 has a low thermal conductivity and a small thickness, thereby ensuring the insulation effect of the insulation panel assembly 11. The insulation reinforcement layer 113 includes a mesh layer and an adhesive material filled in the mesh layer. Optionally, the mesh layer may include, but is not limited to, one or more of glass fiber mesh, carbon fiber mesh, and metal mesh. The adhesive material may be a low-temperature glue or other material. The insulation reinforcement layer 113 connects the second insulating portion 112 to the first insulating portion 111. The insulation reinforcement layer 113 has a low thermal conductivity, ensuring the insulation effect of the insulation panel assembly 11.

[0055] In an optional embodiment, the structure of the first insulation portion 111 is the same as that of the second insulation portion 112. The structure of the first insulation portion 111 can be configured based on the actual structure of the cryogenic liquid tank equipment. It can have the same structure and dimensions, the same structure and different dimensions, or a combination of multiple structures and dimensions. This embodiment is not limited to these. Optionally, the first insulation portion 111 is a triangular plate structure, a square plate structure, or a hexagonal plate structure to facilitate processing and manufacturing, improve production efficiency, and reduce manufacturing costs.

[0056] Reference Figure 7 In this embodiment, the vacuum insulation panel 1123 includes an insulating core panel 1101, an airtight barrier layer 1102, and a gas adsorption layer 1103. The airtight barrier layer 1102 has a box-shaped structure, with the insulating core panel 1101 positioned within the box-shaped structure. The gas adsorption layer 1103 is positioned between the insulating core panel 1101 and the airtight barrier layer 1102. Optionally, the gas adsorption layer 1103 has a rectangular plate-shaped structure. The airtight barrier layer 1102 ensures the airtightness of the interior space of the vacuum insulation panel 1123. The insulating core panel 1101 has excellent insulation performance, ensuring that the vacuum insulation panel 1123 has excellent insulation performance. The gas adsorption layer 1103 absorbs air within the vacuum insulation panel 1123, thereby improving the insulation performance of the vacuum insulation panel 1123.

[0057] In an optional embodiment, the material of the insulating core panel 1101 is an insulating material, and the material of the airtight barrier layer 1102 is an airtight insulating material. Furthermore, the material of the insulating core panel 1101 can be aerogel. Since the insulating core panel 1101 has extremely low thermal conductivity and excellent thermal insulation effect, and the gas adsorption layer 1103 is used to maintain an approximate vacuum or vacuum state inside the vacuum insulation panel 1123, heat transfer is effectively reduced, and the thermal insulation effect of the second insulation part 112 is improved.

[0058] Reference Figures 8 to 10In this embodiment, the connecting portion 122 includes a connecting rod 1221 and a fastening head 1222. A first groove 1211 is provided on a side of the fixing block 121 away from the first surface 1111 of the first thermal insulation portion 111. A first through-hole 1212 is defined in the bottom surface of the first groove 1211 of the fixing block 121. The connecting rod 1221 passes through the first through-hole 1212 and is located in the first groove 1211. The fastening head 1222 is located in the first groove 1211 and connected to the connecting rod 1221. The fixing block 121 is located on the surface of the thermal insulation reinforcement layer 113. The fastening head 1222 is movable along the longitudinal direction of the connecting rod 1221, thereby enabling the fixing block 121 to abut against the thermal insulation reinforcement layer 113 via the fastening head 1222. Optionally, the connecting rod 1221 is a screw, the fastening head 1222 is a nut, and the connecting portion 122 further includes a gasket positioned between the fastening head 1222 and the bottom surface of the first groove 1211. By turning the nut, the fixing block 121 abuts against the insulation reinforcement layer 113, thereby pressing down the insulation panel assembly. During use, the end of the connecting rod 1221 proximate the first surface 1111 of the first insulation portion 111 is connected to the surface of the cryogenic liquid tank equipment. By tightening the fastening head 1222, the fixing block 121 presses down the insulation panel assembly 11, thereby securing the liquid tank insulation device 1 to the surface of the cryogenic liquid tank equipment.

[0059] Reference Figure 11 and Figure 12 In this embodiment, the sealing assembly 13 is used to fill the gaps between the second thermal insulation parts 112. The sealing assembly 13 includes a sealing part 131, a bonding part 132, and a tightening part 133. The sealing part 131 includes a sealing block 1311 and a sealing strip 1312. The sealing block 1311 is located on the surface of the fixing block 121 away from the first thermal insulation part 111 to fill the gaps between the multiple second thermal insulation parts 112 surrounding the same fastening assembly 12. The sealing strip 1312 is located on the surface of the thermal insulation reinforcement layer 113 away from the first thermal insulation part 111 and between two adjacent second thermal insulation parts 112 to fill the gaps between the two adjacent second thermal insulation parts 112 and the thermal insulation reinforcement layer 113. A second groove 1301 is provided on the surface of the sealing block 1311 away from the first thermal insulation part 111, and a third groove 1302 is provided on the surface of the sealing strip 1312 away from the first thermal insulation part 111. Optionally, the sealing portion 131 is made of an elastic material, including but not limited to polyethylene plastic foam, diene polymer, nitrile rubber polymer, etc.

[0060] The bonding portion 132 is located between the sealing portion 131 and the second insulation portion 112, and is used to connect the sealing portion 131 to the second insulation portion 112. Optionally, the bonding portion 132 can be a low-temperature glue layer, through which the sealing portion 131 is bonded to the second insulation portion 112.

[0061] The expansion portion 133 includes an expansion block 1331 and an expansion strip 1332. The expansion block 1331 is located in the second groove 1301, and the expansion strip 1332 is located in the third groove 1302. The expansion portion 133 can cause the sealing portion 131 to abut against the second insulation portion 112 through the bonding portion 132, effectively improving the airtightness of the liquid tank insulation device 1 and enhancing the insulation effect. Optionally, the expansion portion 133 is made of an insulating expansion material with excellent insulation effect. When the expansion portion 133 filled in the second groove 1301 and the third groove 1302 expands, it can squeeze the bonding portion 132 through the sealing portion 131, so that the sealing portion 131 abuts against the second insulation board through the bonding portion 132. Furthermore, the expansion portion 133 is made of polyurethane foam. When the polyurethane foam filled in the second groove 1301 and the third groove 1302 expands, it generates force to cause the sealing portion 131 to squeeze the bonding portion 132.

[0062] Reference Figure 10 and Figure 13 In this embodiment, the structure of the fixed block 121 can be adaptively set according to the structure of the insulation plate assembly 11. Optionally, when the first insulation part 111 is a triangular plate structure, the fixed block 121 is a six-claw structure; when the first insulation part 111 is a square plate structure, the fixed block 121 is a cross structure; when the first insulation part 111 is a regular hexagonal plate structure, the fixed block 121 is a three-claw structure.

[0063] In this embodiment, the liquid tank insulation device 1 further includes an insulating filling layer 15 for filling the gaps between adjacent first insulating portions 111 and the gap between the fixing block 121 and the second insulating portion 112. Optionally, the insulating filling layer 15 is made of an insulating fiber material, including but not limited to glass fiber, ceramic fiber, etc.

[0064] In this embodiment, the thermal insulation protective layer 14 completely covers the surface of the second thermal insulation part 112 and the fixed block 121 away from the first thermal insulation part 111. Optionally, the material of the thermal insulation protective layer 14 is a fiber-reinforced composite material. Further, the material of the thermal insulation protective layer 14 is a carbon fiber reinforced resin composite material.

[0065] In the liquid tank insulation device 1 of this embodiment, the second insulation part 112 is connected to the first insulation part 111 through the insulation reinforcement layer 113. The second insulation part 112 includes a first insulation shell plate 1121, a second insulation shell plate 1122 and a vacuum insulation panel 1123 arranged in sequence from the outside to the inside. The vacuum insulation panel 1123 includes an airtight barrier layer and an insulation core plate 1101 from the outside to the inside. A gas adsorption layer 1103 is provided between the airtight barrier layer and the insulation core plate 1101. The first insulation shell plate 1121 can protect the second insulation part 112 from being damaged. The first insulation part 111, the second insulation shell plate 1122 and the vacuum insulation panel 1123 can ensure that the insulation panel assembly has excellent insulation performance. Effect: Multiple insulation panel assemblies are arranged around the fastening assembly 12, and the gaps between adjacent insulation panel assemblies 11 are filled with insulation filling layers 15. When in use, the fastening assembly 12 can fix the liquid tank insulation device 1 to the surface of the low-temperature liquid tank equipment. The structure of the insulation panel assembly can be set according to the structural adaptability of the low-temperature liquid tank equipment. While ensuring the insulation effect, it effectively avoids quality problems such as cracking, thereby improving the applicability of the liquid tank insulation device 1. The sealing assembly 13 is arranged between the second insulation parts 112 to improve the air tightness and insulation effect of the liquid tank insulation device 1. The outer side of the liquid tank insulation device 1 is provided with an insulation protection layer 14, which can protect the internal structure from being damaged by the external environment and causing a reduction in the insulation effect. The liquid tank insulation device 1 of this embodiment has an excellent insulation effect, can adapt to a variety of complex curved surfaces, effectively reduces the number of insulation panels, reduces the design, manufacturing and installation costs, improves the connection strength between the insulation panels, and can enhance the overall strength of the liquid tank insulation device 1 through reasonable layout.

[0066] Example 2

[0067] This embodiment provides a cryogenic liquid tank device, referring to Figure 14 , including a tank body 3 and a liquid tank insulation system 2 covering the surface of the tank body 3, the liquid tank insulation system 2 includes any one of the liquid tank insulation devices 1 in embodiment one.

[0068] Reference Figure 3 The tank body 3 includes a liquid tank outer plate 31 , and the liquid tank insulation system 2 is connected to the liquid tank outer plate 31 through a fastening assembly 12 so that the first surface 1111 of the first insulation portion 111 is in contact with the liquid tank outer plate 31 .

[0069] Reference Figure 15 and Figure 16The liquid tank insulation system 2 includes a plurality of liquid tank insulation devices 1. The plurality of fastening assemblies 12 of the liquid tank insulation system 2 are distributed in an array on the outer surface of the liquid tank outer plate 31. The insulation plate assembly 11 is connected to the fastening assemblies 12, and the same insulation plate assembly 11 is connected to at least three fastening assemblies 12. Optionally, when the first insulation portion 111 is a triangular plate structure, the fastening assemblies 12 are arranged at the three vertex corners of the triangular plate structure of the first insulation portion 111; when the first insulation portion 111 is a square plate structure, the fastening assemblies 12 are arranged at the four vertex corners of the first insulation portion 111; when the first insulation portion 111 is a regular hexagonal plate structure, the fastening assemblies 12 are arranged at intervals at the three vertex corners of the first insulation portion 111.

[0070] In an optional embodiment, the connecting rod 1221 of the connecting portion 122 of the fastening assembly 12 is a screw, and the fastening head 1222 is a nut. The connecting portion 122 is welded to the surface of the liquid tank outer plate 31. According to design requirements, the insulation board assembly is placed on the surface of the liquid tank outer plate 31 so that it surrounds the connecting portion 122; the fixing block 121 is installed to the end of the connecting portion 122 away from the surface of the liquid tank outer plate 31 through the first through hole 1212, and the fixing block 121 is pressed down by the fastening head 1222 to fix the insulation board assembly to the surface of the liquid tank outer plate 31; between adjacent first insulation parts 111, between the second insulation part 112 and the fixing block 121, and in the fixing block 121 An insulating filling layer 15 is formed in the first groove 1211; the sealing part 131 of the sealing assembly 13 is installed to the side of the fixed block 121 away from the liquid tank outer plate 31 and between the two adjacent second insulating parts 112, and a bonding part 132 is formed between the sealing part 131 and the second insulating part 112, and the expansion part 133 is filled in the second groove 1301 and the third groove 1302 of the sealing part 131. The expansion of the expansion part 133 enables the sealing part 131 to abut against the second insulating part 112 through the bonding part 132; an insulating protective layer 14 is formed on the surface of the second insulating part 112 and the sealing assembly 13 away from the first insulating part 111 to complete the installation of the liquid tank insulation system 2.

[0071] This embodiment provides a low-temperature liquid tank equipment, including a tank body 3 and a liquid tank insulation system 2 covering the surface of the tank body 3. The liquid tank insulation system 2 includes multiple liquid tank insulation devices 1 as described in any of the above embodiments. Therefore, the low-temperature liquid tank equipment of this embodiment also has the beneficial effects of embodiment one.

[0072] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Anyone skilled in the art may modify, alter, or combine the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or variations accomplished by a person of ordinary skill in the art without departing from the spirit and technical concepts disclosed in this application shall be covered by the claims of this application.

Claims

1. A liquid tank insulation device, used in low-temperature liquid tank equipment, characterized in that: include: A plurality of insulation panel assemblies, each comprising a first insulation portion, a second insulation portion, and an insulation reinforcement layer, wherein two opposing outer surfaces of the first insulation portion are respectively designated as a first surface and a second surface, the second insulation portion is located on the second surface, the insulation reinforcement layer is located between the first insulation portion and the second insulation portion and covers the second surface, and a projection of the second insulation portion on the second surface is located within the second surface; a fastening assembly comprising a fixing block and a connecting portion penetrating the fixing block, wherein a plurality of the thermal insulation panel assemblies are distributed around the fastening assembly along a first direction, wherein the fixing block is located on a surface of the thermal insulation reinforcement layer on a side away from the first thermal insulation portion, and wherein the first direction is a direction surrounding and perpendicular to a longitudinal centerline of the fastening assembly; a sealing assembly located between two adjacent second heat insulating portions and on a surface of the fixing block away from the first heat insulating portion; a heat-insulating protective layer, located on a surface of the second heat-insulating portion and the sealing assembly away from the first heat-insulating portion; The second insulation portion includes a first insulation shell plate, a second insulation shell plate, and a vacuum insulation panel. The first insulation shell plate and the second insulation shell plate are both box-shaped structures. The second insulation shell plate is located inside the box-shaped structure of the first insulation shell plate. The second insulation shell plate is made of a hard insulation material. The vacuum insulation panel is located inside the box-shaped structure of the second insulation shell plate. The sealing assembly comprises: a sealing portion, comprising a sealing block and a sealing strip, wherein the sealing block is located on a surface of the fixing block away from the first thermal insulation portion, the sealing strip is located on a surface of the thermal insulation reinforcement layer away from the first thermal insulation portion, and is located between two adjacent second thermal insulation portions; a second groove is provided on a surface of the sealing block away from the first thermal insulation portion, and a third groove is provided on a surface of the sealing strip away from the first thermal insulation portion; and the sealing portion is made of an elastic material; a bonding portion located between the sealing portion and the second heat insulating portion; The expansion portion includes an expansion block and an expansion strip, wherein the expansion block is located in the second groove, and the expansion strip is located in the third groove. The expansion portion is used to make the sealing portion abut against the second insulation portion through the bonding portion.

2. The liquid tank insulation device according to claim 1, characterized in that: The vacuum insulation panel includes an insulation core panel, an airtight barrier layer and a gas adsorption layer. The airtight barrier layer is a box-shaped structure. The insulation core panel is located in the box-shaped structure of the airtight barrier layer. The gas adsorption layer is located between the insulation core panel and the airtight barrier layer.

3. The liquid tank insulation device according to claim 1, characterized in that: The connecting part includes a connecting rod and a fastening head. A first groove is provided on the side of the fixing block away from the first insulation part. A first through hole is opened on the bottom surface of the first groove of the fixing block. The connecting rod passes through the first through hole and is located in the first groove. The fastening head is located in the first groove and connected to the connecting rod.

4. The liquid tank insulation device according to claim 1, characterized in that: The first heat insulating portion is one of a triangular plate structure, a square plate structure and a hexagonal plate structure, and the structure of the second heat insulating portion is the same as that of the first heat insulating portion.

5. The liquid tank insulation device according to claim 4, characterized in that: When the first heat insulating portion is a triangular plate structure, the fixing block is a six-claw structure; When the first heat insulating portion is a square plate structure, the fixing block is a cross-shaped structure; When the first heat insulating portion is a regular hexagonal plate structure, the fixing block is a three-claw structure.

6. The liquid tank insulation device according to claim 1, characterized in that: The liquid tank insulation device further includes an insulation filling layer for filling the gaps between adjacent first insulation parts and the gap between the fixing block and the second insulation part.

7. A cryogenic liquid tank device, characterized in that: A liquid tank thermal insulation system comprising a tank body and a liquid tank thermal insulation system covering a surface of the tank body, wherein the liquid tank thermal insulation system comprises the liquid tank thermal insulation device according to any one of claims 1 to 6; The tank body includes a liquid tank outer plate, and the liquid tank thermal insulation system is connected to the liquid tank outer plate through a fastening assembly so that the first surface of the first thermal insulation part is in contact with the liquid tank outer plate.

8. The cryogenic liquid tank equipment according to claim 7, characterized in that: The liquid tank insulation system includes multiple liquid tank insulation devices, and multiple fastening components of the liquid tank insulation system are distributed in an array on the outer surface of the liquid tank outer plate, and the same insulation plate component is connected to at least three of the fastening components.

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