Low-temperature storage tank and fluid transportation equipment

Abstract

The invention discloses a low-temperature storage tank and fluid transportation equipment, and relates to the technical field of fluid transportation, and the low-temperature storage tank comprises a protective shell and an enclosure system. The protective shell is provided with an assembly cavity. The enclosure system is installed in the assembly cavity, the enclosure system can cover the inner wall of the assembly cavity and form a containing cavity, and the containing cavity can store low-temperature fluid. The enclosure system comprises a plurality of heat insulation units spliced with one another and splicing assemblies arranged on the heat insulation units, each splicing assembly comprises at least one group of first splicing part and second splicing part which are matched with each other, and the first splicing parts are detachably connected with the second splicing parts. A heat passage is formed between every two adjacent heat insulation units, a first sealing face is arranged on the first splicing part, a second sealing face is arranged on the second splicing part, and in the low-temperature fluid storage process, the first sealing faces and the second sealing faces abut against each other and block the heat passages. The situation of cold leakage between the two heat insulation units can be reduced or even prevented through the structure which is more shrunk and tighter in sealing.

Description

Technical Field

[0001] The present application relates to the technical field of fluid transportation, and particularly to a cryogenic storage tank and a fluid transportation device. Background Art

[0002] A cryogenic storage tank is a container for storing cryogenic liquids (such as liquefied natural gas, liquid oxygen, liquid nitrogen, etc.). Its enclosure system refers to the shell and insulation layer of the storage tank. The design and material selection of these structures must be able to adapt to and maintain the cryogenic environment inside the storage tank to prevent heat from entering and causing the liquid to warm up, thereby ensuring the stability and safety of the stored substance.

[0003] However, the existing cryogenic storage tanks are difficult to assemble, often requiring a combination of multiple fixing methods for fixing, and are prone to cold leakage. Summary of the Invention

[0004] The present application provides a cryogenic storage tank and a fluid transportation device, which can not only improve the overall performance of the enclosure system through a structure that seals more tightly as it contracts, but also ensure the safety and stability of cryogenic fluids during storage, reducing or even preventing cold leakage between two insulation units.

[0005] In a first aspect, the present application provides a cryogenic storage tank, including a protective shell and an enclosure system. The protective shell has an assembly cavity. The enclosure system is installed in the assembly cavity. The enclosure system can cover the inner wall of the assembly cavity and form a containing cavity, and the containing cavity can store cryogenic fluids.

[0006] Wherein, the enclosure system includes a plurality of mutually spliced insulation units and a splicing component arranged on the insulation units. The splicing component includes at least one set of mutually adapted first splicing part and second splicing part, and the first splicing part and the second splicing part are detachably connected.

[0007] There is a gap between two adjacent insulation units, forming a heat path. A first sealing surface is arranged on the first splicing part, and a second sealing surface is arranged on the second splicing part. During the storage of cryogenic fluids, the insulation units at least partially contract towards the central region, and the first sealing surface and the second sealing surface abut against each other to block the heat path.

[0008] The design and structure of the cryogenic storage tank in the above structure include two main parts: the protective shell and the enclosure system. The protective shell can enclose to form an assembly cavity, which is the basis for installing the enclosure system. The enclosure system can be installed in the assembly cavity. The main function of the enclosure system is to cover the inner wall of the assembly cavity and form a containing cavity for storing cryogenic fluids. The function of the containing cavity is to store and maintain cryogenic fluids to ensure that they are within the specified temperature range for safe and effective use.

[0009] The enclosure system consists of the splicing of multiple heat insulation units, and the heat insulation units are tightly connected together through splicing components. The splicing components can include at least one set of adapted first splicing parts and second splicing parts, and a detachable connection can be achieved between the first splicing part and the second splicing part. This design allows for the maintenance or replacement of components of the system when needed, without having to completely disassemble the entire structure.

[0010] A first sealing surface is provided on the first splicing part, and a second sealing surface is provided on the second splicing part. These two sealing surfaces play a role in strengthening the seal and preventing cold leakage during the storage of cryogenic fluids. When the heat insulation unit shrinks at least partially towards the central region due to temperature changes, the first sealing surface and the second sealing surface will abut against each other and tightly block the heat path. The ingenuity of this design lies in that as the temperature decreases and the heat insulation unit shrinks, the blocking effect will become tighter, thus effectively reducing or even preventing the occurrence of cold leakage. This structure where the tighter the shrinkage, the tighter the seal not only improves the overall performance of the enclosure system but also ensures the safety and stability of cryogenic fluids during storage, reducing or even preventing cold leakage between two heat insulation units.

[0011] In some examples, the heat insulation unit includes a first mounting plate, a heat insulation main body, and a second mounting plate. The first mounting plate is connected to the inner wall of the mounting cavity, the heat insulation main body is connected to the first mounting plate, and the second mounting plate is connected to the heat insulation main body.

[0012] The splicing components are arranged on the periphery of the heat insulation main body. Among two adjacent heat insulation main bodies, the first splicing part is arranged on one heat insulation main body, and the second splicing part is arranged on the other heat insulation main body. The first splicing part and the second splicing part can be slidably connected during the assembly process of the heat insulation unit.

[0013] The heat insulation unit is composed of multiple parts, including a first mounting plate, a heat insulation main body, and a second mounting plate. Specifically, the first mounting plate is connected to the inner wall of the mounting cavity, ensuring a firm connection between the heat insulation unit and the mounting cavity. The heat insulation main body, as the core part, is not only connected to the first mounting plate but also to the second mounting plate, thus forming an integral heat insulation structure. The second mounting plate is located on the other side of the heat insulation main body and forms a firm connection with the heat insulation main body, working together to improve the overall heat insulation performance. A shielding component can also be installed on the second mounting plate.

[0014] In addition, to further enhance the assembly efficiency and stability of the thermal insulation unit, the splicing components can be arranged on the peripheral side of the thermal insulation main body. Between two adjacent thermal insulation main bodies, a first splicing part and a second splicing part are designed. The first splicing part is arranged on one of the thermal insulation main bodies, while the second splicing part is arranged on the other thermal insulation main body. During the assembly process of the thermal insulation unit, these two splicing parts can achieve precise sliding connection, ensuring that all parts of the thermal insulation unit can be seamlessly butted, thus achieving a fast and stable assembly effect. This design not only improves the assembly convenience but also ensures the reliability and durability of the thermal insulation unit in practical applications.

[0015] In some examples, the first splicing part is a convex structure, and the second splicing part is a groove structure. The convex structure is provided with at least one extension area, and at least one sealing area is arranged in the groove structure. The extension area is at least partially located in the sealing area.

[0016] The first sealing surface is arranged on the extension area, and the second sealing surface is arranged on the sealing area.

[0017] The above-mentioned splicing design of the convex and the groove not only facilitates the sliding connection between the two but also effectively enhances the sealing performance at the splicing part. When the extension area of the first splicing part is completely embedded in the sealing area of the second splicing part, the first sealing surface and the second sealing surface are closely attached to form a reliable sealing barrier, effectively preventing the heat exchange between the inside and outside of the cryogenic storage tank and further improving the thermal insulation effect. At the same time, this design also has a certain self-locking function, making the splicing part not easy to loosen when subjected to external forces, ensuring the stability and safety of the thermal insulation unit. In addition, the specific shapes and sizes of the sealing area and the extension area can be adjusted according to actual needs to adapt to cryogenic storage tanks of different specifications and sizes, improving the applicability and flexibility of this splicing structure.

[0018] In some examples, the cross-sectional dimension of the convex structure is smaller than that of the groove structure, and the convex structure can be slidably connected and filled into the groove structure.

[0019] The above-mentioned design enables the convex structure to slide more smoothly into the groove structure, reducing the resistance and difficulty during splicing. At the same time, since the cross-sectional dimension of the convex structure is smaller than that of the groove structure, there will be a certain gap between the two after the convex structure is completely embedded in the groove. This gap can be used to fill sealing materials such as rubber pads and silica gels to further enhance the blocking effect. In addition, the sliding connection between the convex structure and the groove structure also has a certain guiding effect, making the splicing process more accurate and fast, and avoiding splicing failures caused by misalignment. This design not only improves the connection stability but also enhances the splicing efficiency and accuracy, bringing convenience to the manufacturing and maintenance of cryogenic storage tanks.

[0020] In some examples, first splicing parts are provided on opposite sides of the heat insulation unit. Alternatively, second splicing parts are provided on both sides of the heat insulation unit. Alternatively, a first splicing part is provided on one of the opposite sides of the heat insulation unit, and a second splicing part is provided on the other side.

[0021] When both opposite sides of the heat insulation unit are second splicing parts, two first splicing parts are spliced to form a bidirectional connecting part, and two layers of the bidirectional connecting part can be respectively connected to a groove structure.

[0022] This design makes the connection between heat insulation units more diversified and enables flexible splicing according to different scenarios and requirements. When both opposite sides of the heat insulation unit are set as second splicing parts, two first splicing parts can be spliced to form a bidirectional connecting part. The two-layer structure of this bidirectional connecting part can be respectively connected to two groove structures, thereby realizing the bidirectional connection between heat insulation units. This bidirectional connection method not only enhances the connection stability but also improves the overall strength of the structure, making the cryogenic storage tank safer and more reliable when withstanding internal and external pressures. At the same time, this design also provides more convenience and flexibility for the manufacturing and maintenance of cryogenic storage tanks.

[0023] In some examples, a first sealing gasket is provided on the first sealing surface, and a second sealing gasket is provided on the second sealing surface.

[0024] The design of these two sealing gaskets further improves the sealing performance between heat insulation units. The first sealing gasket and the second sealing gasket are respectively attached to the first sealing surface and the second sealing surface, ensuring that there is no leakage problem when the heat insulation units are spliced. At the same time, the material of the sealing gasket should not only ensure good blocking effect but also have certain elasticity and wear resistance to meet the requirements of cryogenic storage tanks in different working environments. Such a design not only improves the splicing quality of heat insulation units but also provides a strong guarantee for the long-term stable operation of cryogenic storage tanks.

[0025] In some examples, a first strengthening part is provided on the first splicing part, and a second strengthening part is provided on the second splicing part.

[0026] The first splicing part includes a first strengthening part, while the second splicing part includes a second strengthening part. Such a design aims to enhance the strength of the structure, thereby effectively reducing the risk of damage that may occur during use.

[0027] The setting of the first strengthening part and the second strengthening part enables the heat insulation unit to be more stable when spliced, enhancing the load-bearing capacity of the entire structure. Specifically, the first strengthening part may be designed as a reinforcing structure matching the first splicing part, such as a reinforcing plate or a reinforcing rib, which can increase the mechanical strength of the first splicing part and prevent deformation or damage due to excessive stress during the splicing process. Similarly, the second strengthening part also enhances the strength of the second splicing part in a similar way.

[0028] In some examples, the first reinforcing part is embedded in the first splicing part, and the second reinforcing part is embedded in the second splicing part.

[0029] Alternatively, the first reinforcing part wraps the surface of the first splicing part, and the second reinforcing part wraps the surface of the second splicing part.

[0030] Such an embedded or wrapped design not only further improves the structural stability but also optimizes the assembly efficiency of the heat insulation unit during splicing. The embedded design enables the reinforcing part to be closely combined with the splicing part, reducing the gaps caused by loose connections, thereby effectively preventing heat transfer and improving the heat insulation performance.

[0031] The wrapped design, on the other hand, enhances the supporting effect of the reinforcing part on the splicing part by increasing the contact area, making the entire structure more uniform when stressed and reducing the risk of local stress concentration. In addition, this design also facilitates the maintenance and replacement of the reinforcing part, improving the maintainability and service life of the cryogenic storage tank.

[0032] In some examples, the convex structure includes at least one of a T-shaped convex, an L-shaped convex, a dovetail-shaped convex, an F-shaped convex, a Z-shaped convex, and an H-shaped convex.

[0033] The convex structure can include various different shapes, such as a T-shaped convex, an L-shaped convex, a dovetail-shaped convex, an F-shaped convex, a Z-shaped convex, and an H-shaped convex, etc. These are just a part of them. In addition to these specific shapes, other various different convex structure designs can also be adopted. Moreover, these convex structures are not limited to a single form, and they can be a combination of multiple different convex structures, thus creating more complex and diverse surface textures.

[0034] In a second aspect, the present application provides a fluid transportation device, including the above-mentioned cryogenic storage tank and a device main body, and the cryogenic storage tank is arranged on the device main body.

[0035] The fluid transportation device can be an air transportation device, a land transportation device, a river transportation device, or a sea transportation device, which is specifically set according to needs.

[0036] During the fluid transportation process, the cryogenic storage tank is used to store and transport various liquid or gaseous substances that need to be stored at low temperatures, such as liquefied natural gas, liquid oxygen, liquid nitrogen, etc. The fluid transportation device provided by the present application, by adopting the thin film enclosure system of the above-mentioned cryogenic storage tank, can ensure the high-efficiency heat insulation performance of the storage tank during transportation, effectively preventing the deterioration of the substance quality or safety hazards caused by heat transfer.

[0037] In addition, the fluid transportation equipment is designed in a flexible and diverse manner, and different transportation modes such as air transportation, land transportation, river transportation, or sea transportation can be selected according to actual needs. It is widely used in various fields such as industry, medicine, and scientific research. In air transportation equipment, the cryogenic storage tank can be fixed in the aircraft cargo hold, and through special fixing devices and shock absorption systems, its stability and safety during flight are ensured. In land transportation equipment, the cryogenic storage tank can be installed on transportation tools such as trucks and trains, equipped with professional cooling systems and monitoring systems to real-time monitor the temperature and pressure inside the storage tank, ensuring the safety and reliability of the transportation process. In river transportation and sea transportation equipment, the cryogenic storage tank is usually fixed in the cargo hold of the ship, and through professional fixing and heat insulation measures, the impact of wind waves and temperature changes on the substances inside the storage tank is effectively resisted. Brief Description of the Drawings

[0038] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings required for the description of the examples or the prior art. Obviously, the drawings described below are only some examples of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0039] Figure 1 It is a schematic structural diagram of a heat insulation unit in a cryogenic storage tank in an example of the present application.

[0040] Figure 2 It is another schematic structural diagram of a heat insulation unit in a cryogenic storage tank in an example of the present application.

[0041] Figure 3 It is another schematic structural diagram of a heat insulation unit in a cryogenic storage tank in an example of the present application.

[0042] Figure 4 It is an exploded schematic structural diagram when two adjacent heat insulation units in a cryogenic storage tank in an example of the present application are spliced.

[0043] Figure 5 It is a schematic structural diagram after two adjacent heat insulation units in a cryogenic storage tank in an example of the present application are spliced.

[0044] Figure 6 It is an enlarged schematic structural diagram of the splicing component at location A after two adjacent heat insulation units in a cryogenic storage tank in an example of the present application are spliced.

[0045] Figure 7 It is an enlarged schematic structural diagram of the cold leakage through the heat transfer path before two adjacent heat insulation units in a cryogenic storage tank in an example of the present application contract towards their own central regions after assembly.

[0046] Figure 8Schematic diagram of the structure where adjacent two heat insulation units in a cryogenic storage tank of an example of this application are spliced and the heat insulation units shrink to block the heat path.

[0047] Figure 9 Schematic enlarged view of the structure of the splicing component at B when adjacent two heat insulation units in a cryogenic storage tank of an example of this application are spliced and the heat insulation units shrink to block the heat path.

[0048] Figure 10 Schematic enlarged view of the structure where adjacent two heat insulation units in a cryogenic storage tank of an example of this application shrink towards their own middle regions respectively and block the heat path after storing liquid.

[0049] Figure 11 Schematic enlarged view of the structure when a first strengthening part and a second strengthening part are arranged at the position of the splicing component in an example of this application.

[0050] Figure 12 Schematic exploded view of the structure of another splicing method of at least two heat insulation units in a cryogenic storage tank of an example of this application.

[0051] Figure 13 Schematic exploded view of the structure of another splicing method of at least two heat insulation units in a cryogenic storage tank of an example of this application.

[0052] Figure 14 Schematic exploded view of the structure of another splicing method of at least two heat insulation units in a cryogenic storage tank of an example of this application.

[0053] Figure 15 Schematic exploded view of the structure of another splicing method of at least two heat insulation units in a cryogenic storage tank of an example of this application.

[0054] Reference signs: 100, heat insulation unit; 110, first assembly plate; 120, heat insulation main body; 130, second assembly plate; 200, splicing component; 210, first splicing part; 211, extension area; 212, first sealing surface; 220, second splicing part; 221, sealing area; 222, second sealing surface; 230, bidirectional connecting piece; 240, first strengthening part; 250, second strengthening part. Detailed implementation manners

[0055] In order to make the purpose, technical solutions and advantages of this application clearer, the following further details this application in combination with the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain this application and are not used to limit this application.

[0056] To solve the above technical problems, please refer to Figures 1-15As shown, the first aspect of the present application proposes a cryogenic storage tank, which can improve the overall performance of the enclosure system through a structure that seals more tightly as it shrinks, not only ensuring the safety and stability of cryogenic fluids during storage, but also reducing or even preventing cold leakage between the two insulation units.

[0057] Figures 1-3 The structural schematic diagrams of three insulation units in the cryogenic storage tank are shown. Figure 4 The structural explosion schematic diagram when two adjacent insulation units in the cryogenic storage tank are spliced is shown.

[0058] Referring Figures 5-10 , in some examples, the cryogenic storage tank includes a protective shell and an enclosure system. The protective shell has an assembly cavity. The enclosure system is installed in the assembly cavity, and the enclosure system can cover the inner wall of the assembly cavity and form a containment cavity, and the containment cavity can store cryogenic fluids.

[0059] Among them, the enclosure system includes a plurality of spliced insulation units 100 and a splicing assembly 200 arranged on the insulation unit 100. The splicing assembly 200 includes at least one set of mutually adapted first splicing part 210 and second splicing part 220, and the first splicing part 210 and the second splicing part 220 are detachably connected.

[0060] There is a gap between two adjacent insulation units 100 and a heat path is formed. A first sealing surface 212 is arranged on the first splicing part 210, and a second sealing surface 222 is arranged on the second splicing part 220. During the storage of cryogenic fluids, the insulation unit 100 shrinks at least partially towards the central area, and the first sealing surface 212 and the second sealing surface 222 are abutted against each other to block the heat path.

[0061] In the above structure, the design and construction of the cryogenic storage tank include two main parts: the protective shell and the enclosure system. The protective shell can enclose to form an assembly cavity, which is the basis for installing the enclosure system. The enclosure system can be installed in the assembly cavity, and the main function of the enclosure system is to cover the inner wall of the assembly cavity and form a containment cavity for storing cryogenic fluids. The function of the containment cavity is to store and maintain cryogenic fluids to ensure that they are within the specified temperature range for safe and effective use.

[0062] The enclosure system includes the splicing of a plurality of insulation units 100, and the insulation units 100 are tightly connected together through the splicing assembly 200. The splicing assembly 200 can include at least one set of mutually adapted first splicing part 210 and second splicing part 220, and a detachable connection can be achieved between the first splicing part 210 and the second splicing part 220. This design allows for the maintenance or replacement of components when needed without having to completely disassemble the entire structure.

[0063] A first sealing surface 212 is provided on the first splicing part 210, and a second sealing surface 222 is provided on the second splicing part 220. These two sealing surfaces play a role in strengthening the seal to prevent cold leakage during the storage of cryogenic fluids. When the heat insulation unit 100 shrinks at least partially towards the central region due to temperature changes, the first sealing surface 212 and the second sealing surface 222 will abut against each other and tightly block the heat path. As the temperature decreases and the heat insulation unit 100 shrinks, the blocking effect will become tighter, thus effectively reducing or even preventing cold leakage. This structure where the tighter the shrinkage, the tighter the seal not only improves the overall performance of the enclosure system but also ensures the safety and stability of cryogenic fluids during storage, reducing or even preventing cold leakage between the two heat insulation units 100.

[0064] In the above structure, the heat path refers to the path through which heat may be transferred by means of material conduction, convection, or radiation in heat preservation equipment such as cryogenic storage tanks. The heat path in this application can specifically refer to the gap area between two adjacent heat insulation units 100 (refer to Figures 5-7 ). In a cryogenic storage tank, effectively blocking the heat path is crucial for maintaining the storage temperature of cryogenic fluids.

[0065] Through the above design, the enclosure system of the cryogenic storage tank can block the heat path and ensure that cryogenic fluids can be stably stored in a set low-temperature environment. The enclosure system is composed of multiple heat insulation units 100 spliced together, and these heat insulation units 100 are connected by a splicing component 200. The splicing component 200 includes a first splicing part 210 and a second splicing part 220, and the first splicing part 210 and the second splicing part 220 are connected together in a detachable manner, facilitating installation and maintenance.

[0066] On the first splicing part 210 and the second splicing part 220, a first sealing surface 212 and a second sealing surface 222 are respectively provided. When cryogenic fluids are stored in the accommodation cavity, due to the thermal expansion and contraction effect caused by temperature differences, the heat insulation unit 100 will shrink at least partially towards the central region. This shrinkage causes the first sealing surface 212 and the second sealing surface 222 to abut tightly, thus forming an effective heat blocking barrier (refer to Figures 8-10 ). This design not only enhances the overall structural stability of the enclosure system but also significantly improves the heat blocking efficiency.

[0067] Refer to Figures 5-10 , in some examples, the heat insulation unit 100 includes a first assembly plate 110, a heat insulation main body 120, and a second assembly plate 130. The first assembly plate 110 is connected to the inner wall of the assembly cavity, the heat insulation main body 120 is connected to the first assembly plate 110, and the second assembly plate 130 is connected to the heat insulation main body 120.

[0068] The splicing component 200 is arranged on the peripheral side of the heat insulation main body 120. Among two adjacent heat insulation main bodies 120, the first splicing part 210 is arranged on one of the heat insulation main bodies 120, and the second splicing part 220 is arranged on the other heat insulation main body 120. The first splicing part 210 and the second splicing part 220 can be slidably connected during the assembly process of the heat insulation unit 100.

[0069] The heat insulation unit 100 is composed of multiple parts, including a first assembly plate 110, a heat insulation main body 120, and a second assembly plate 130. Specifically, the first assembly plate 110 is connected to the inner wall of the assembly cavity, ensuring a firm combination between the heat insulation unit 100 and the assembly cavity. The heat insulation main body 120, as the core part, is not only connected to the first assembly plate 110 but also connected to the second assembly plate 130, thus forming an integral heat insulation structure. The second assembly plate 130 is located on the other side of the heat insulation main body 120, forming a firm connection with the heat insulation main body 120 and working together to improve the overall heat insulation performance. A shielding component can also be installed on the second assembly plate 130.

[0070] In addition, to further enhance the assembly efficiency and stability of the heat insulation unit 100, the splicing component 200 can be arranged on the peripheral side of the heat insulation main body 120. Between two adjacent heat insulation main bodies 120, a first splicing part 210 and a second splicing part 220 are designed. The first splicing part 210 is arranged on one of the heat insulation main bodies 120, while the second splicing part 220 is arranged on the other heat insulation main body 120. During the assembly process of the heat insulation unit 100, these two splicing parts can achieve precise sliding connection, ensuring that all parts of the heat insulation unit 100 can be seamlessly butted, thus achieving a fast and stable assembly effect. This design not only improves the assembly convenience but also ensures the reliability and durability of the heat insulation unit 100 in practical applications.

[0071] Both the first assembly plate 110 and the second assembly plate 130 can be made of high-strength and corrosion-resistant materials to ensure that their structural stability and durability can still be maintained in a low-temperature environment. The connection method between the first assembly plate 110 and the inner wall of the assembly cavity can be welding, bolt connection, or other reliable connection methods to ensure the sealing and firmness of the connection part. The heat insulation main body 120 uses high-efficiency heat insulation materials, such as polyurethane foam, vacuum insulation panels, etc. These materials have extremely low thermal conductivity and can effectively block the transfer of heat, maintaining the low-temperature environment inside the cryogenic storage tank. At the same time, the design of the heat insulation main body 120 also needs to consider its mechanical strength and corrosion resistance to ensure that it will not deform or be damaged during long-term use.

[0072] Refer to Figures 5-10, in some examples, the first splicing part 210 is a convex structure, the second splicing part 220 is a groove structure, the convex structure is provided with at least one extension area 211, at least one sealing area 221 is arranged in the groove structure, and at least part of the extension area 211 is in the sealing area 221.

[0073] The first sealing surface 212 is arranged on the extension area 211, and the second sealing surface 222 is arranged on the sealing area 221.

[0074] The above-mentioned splicing design of convex and groove is not only convenient for the sliding connection between the two, but also can effectively enhance the sealing performance at the splicing part. When the extension area 211 of the first splicing part 210 is completely embedded in the sealing area 221 of the second splicing part 220, the first sealing surface 212 and the second sealing surface 222 are closely attached to form a reliable sealing barrier, effectively preventing the heat exchange between the inside and outside of the cryogenic storage tank and further improving the heat insulation effect. At the same time, this design also has a certain self-locking function, making the splicing part not easy to loosen when subjected to external forces, ensuring the stability and safety of the heat insulation unit 100. In addition, the specific shapes and sizes of the sealing area 221 and the extension area 211 can be adjusted according to actual needs to adapt to cryogenic storage tanks of different specifications and sizes, improving the applicability and flexibility of this splicing structure.

[0075] In some examples, the cross-sectional dimension of the convex structure is smaller than that of the groove structure, and the convex structure can be slidably connected and filled into the groove structure.

[0076] The above-mentioned design enables the convex structure to slide into the groove structure more smoothly, reducing the resistance and difficulty during splicing. At the same time, since the cross-sectional dimension of the convex structure is smaller than that of the groove structure, there will be a certain gap between the two when the convex structure is completely embedded in the groove, and this gap can be used to fill sealing materials such as rubber pads and silica gels to further enhance the blocking effect. In addition, the sliding connection between the convex structure and the groove structure also has a certain guiding effect, making the splicing process more accurate and fast, and avoiding splicing failure caused by misalignment. This design not only improves the connection stability, but also enhances the splicing efficiency and accuracy, bringing convenience to the manufacture and maintenance of cryogenic storage tanks.

[0077] In some examples, the first splicing parts 210 are arranged on both opposite sides of the heat insulation unit 100.

[0078] Or, the second splicing parts 220 are arranged on both sides of the heat insulation unit 100.

[0079] Or, the first splicing part 210 is arranged on one side of the heat insulation unit 100, and the second splicing part 220 is arranged on the other side.

[0080] When both opposite sides of the heat insulation unit 100 are the second splicing parts 220, the two first splicing parts 210 are spliced to form a bidirectional connecting part 230, and two layers of the bidirectional connecting part 230 can be respectively connected to a groove structure.

[0081] The above structure illustrates three setting modes of the heat insulation unit 100. The heat insulation unit 100 of the present application is not limited to the above three structures. Specifically, the first splicing parts 210 are provided on both opposite sides of the heat insulation unit 100. It is also possible that the second splicing parts 220 are provided on both sides of the heat insulation unit 100. Or, the first splicing part 210 is provided on one side of the opposite sides of the heat insulation unit 100, and the second splicing part 220 is provided on the other opposite side.

[0082] When the second splicing parts 220 are provided on both opposite sides of the heat insulation unit 100, the two first splicing parts 210 can be spliced together to form a bidirectional connecting part 230. The two-layer structure of this bidirectional connecting part 230 can be respectively connected to a groove structure.

[0083] This design makes the connection between the heat insulation units 100 more diversified and can be flexibly spliced according to different scenarios and requirements. When the second splicing parts 220 are provided on both opposite sides of the heat insulation unit 100, the two first splicing parts 210 can be spliced to form a bidirectional connecting part 230. The two-layer structure of this bidirectional connecting part 230 can be respectively connected to two groove structures, thereby realizing the bidirectional connection between the heat insulation units 100. This bidirectional connection method not only enhances the connection stability but also improves the overall strength of the structure, making the cryogenic storage tank safer and more reliable when bearing internal and external pressures. At the same time, this design also provides more convenience and flexibility for the manufacture and maintenance of the cryogenic storage tank.

[0084] In some examples, a first sealing gasket is provided on the first sealing surface 212, and a second sealing gasket is provided on the second sealing surface 222.

[0085] In the area of the first sealing surface 212, a first sealing gasket is specifically configured. Such a design is to further ensure the reliability of the blocking effect. Similarly, a second sealing gasket is carefully installed at the corresponding position of the corresponding second sealing surface 222 to provide double sealing protection. The setting of these two sealing gaskets not only enhances the tightness of the seal but also effectively prevents the leakage of cold of liquid or gas, thereby ensuring the heat insulation performance of the overall equipment or system.

[0086] The design of these two gaskets further enhances the sealing performance between the heat insulation units 100. The first gasket and the second gasket are respectively attached to the first sealing surface 212 and the second sealing surface 222, ensuring that there is no leakage problem when the heat insulation units 100 are spliced. At the same time, the material of the gasket should not only ensure good blocking effect, but also have certain elasticity and wear resistance to meet the requirements of cryogenic storage tanks in different working environments. Such a design not only improves the splicing quality of the heat insulation units 100, but also provides a strong guarantee for the long-term stable operation of cryogenic storage tanks.

[0087] Referring to Figure 11 , in some examples, the first splicing portion 210 is provided with a first strengthening portion 240, and the second splicing portion 220 is provided with a second strengthening portion 250.

[0088] The first splicing portion 210 includes a first strengthening portion 240, while the second splicing portion 220 includes a second strengthening portion 250. Such a design aims to enhance the strength of the structure, thereby effectively reducing the risk of damage that may occur during use.

[0089] The settings of the first strengthening portion 240 and the second strengthening portion 250 enable the heat insulation units 100 to be more stable when spliced, enhancing the load-bearing capacity of the entire structure. Specifically, the first strengthening portion 240 may be designed as a strengthening structure that matches the first splicing portion 210, such as a reinforcing plate or a reinforcing rib, which can increase the mechanical strength of the first splicing portion 210 and prevent deformation or damage due to excessive stress during the splicing process. Similarly, the second strengthening portion 250 also enhances the strength of the second splicing portion 220 in a similar manner.

[0090] Such a design not only improves the stability of the heat insulation units 100 themselves, but also helps to ensure the safety and reliability of the entire cryogenic storage tank during long-term use. In addition, the material and shape of the strengthening portion may also be specially designed to meet the usage requirements in a low-temperature environment, further improving the performance of the cryogenic storage tank.

[0091] In some examples, the first strengthening portion 240 is embedded in the first splicing portion 210, and the second strengthening portion 250 is embedded in the second splicing portion 220.

[0092] Alternatively, the first strengthening portion 240 wraps the surface of the first splicing portion 210, and the second strengthening portion 250 wraps the surface of the second splicing portion 220.

[0093] In the above structure, the first strengthening portion 240 is embedded and fixed inside the first splicing portion 210, while the second strengthening portion 250 is embedded and fixed inside the second splicing portion 220.

[0094] In addition, there is another case where the first reinforcing portion 240 is designed to wrap and cover the surface of the first splicing portion 210. Such a design can enhance the structural strength of the first splicing portion 210, especially when the first splicing portion 210 has a certain convex structure, the first reinforcing portion 240 will cover its outer surface. Similarly, the second reinforcing portion 250 is also designed to wrap and cover the surface of the second splicing portion 220 to enhance its structural strength, especially when the second splicing portion 220 has a groove structure, the second reinforcing portion 250 will cover its inner surface.

[0095] Such an embedded or wrapped design not only further improves the stability of the structure, but also optimizes the assembly efficiency of the thermal insulation unit 100 during splicing. The embedded design allows the reinforcement part to be tightly combined with the splicing part, reducing the gap caused by loose connection, thereby effectively preventing the transfer of heat and improving the thermal insulation performance.

[0096] The wrap-around design increases the contact area and strengthens the support of the reinforcement to the joint, making the entire structure more uniform when subjected to stress and reducing the risk of local stress concentration. In addition, this design also facilitates the maintenance and replacement of the reinforcement, improving the maintainability and service life of the cryogenic storage tank.

[0097] Please refer to Figure 12 , Figure 13 , Figure 14 as well as Figure 15 , this patent application describes in detail four other different enclosure system assembly methods. According to the actual application and needs, users can choose the most suitable assembly method. It is worth noting that the assembly methods covered by this patent application are not limited to the five methods mentioned above, but provide more options.

[0098] In some examples, the protrusion structure includes at least one of a T-shaped protrusion, an L-shaped protrusion, a dovetail-shaped protrusion, an F-shaped protrusion, a Z-shaped protrusion, and an H-shaped protrusion.

[0099] The raised structures can include many different shapes, such as T-shaped raised, L-shaped raised, dovetail-shaped raised, F-shaped raised, Z-shaped raised, and H-shaped raised, to name a few. In addition to these specific shapes, a variety of other raised structure designs can also be used. In addition, these raised structures are not limited to a single form, they can be a combination of multiple different raised structures, thereby creating more complex and diverse surface textures.

[0100] The design of these protruding structures not only increases the surface area of the first splicing part 210, improves the bonding force with the first strengthening part 240, but also, through its unique shape, can more effectively disperse stress when stressed, avoiding structural damage caused by stress concentration. For example, the T-shaped protrusion and the L-shaped protrusion can guide the stress distribution in a specific direction while providing additional support; the dovetail-shaped protrusion increases the biting area with the strengthening part due to its unique shape, improving the overall stability of the structure; the F-shaped protrusion, Z-shaped protrusion, and H-shaped protrusion provide more connection points and support surfaces through their complex structural forms, further enhancing the connection strength between the splicing part and the strengthening part. Such a design not only improves the structural safety of the cryogenic storage tank but also provides a strong guarantee for its stable operation in various complex environments.

[0101] In a second aspect, the present application can also provide a fluid transportation device, including a cryogenic storage tank and a device main body, and the cryogenic storage tank is arranged on the device main body.

[0102] The fluid transportation device can be an air transportation device, a land transportation device, a river transportation device, or a sea transportation device, which is specifically set according to needs.

[0103] During the fluid transportation process, the cryogenic storage tank is used to store and transport various liquid or gaseous substances that need to be stored at low temperatures, such as liquefied natural gas, liquid oxygen, liquid nitrogen, etc. The fluid transportation device provided by the present application can ensure the high-efficiency heat insulation performance of the storage tank during transportation by adopting the above-mentioned thin-film enclosure system of the cryogenic storage tank, effectively preventing the deterioration of the substance quality or potential safety hazards caused by heat transfer.

[0104] In addition, the design of the fluid transportation device is flexible and diverse. Different transportation methods such as air transportation, land transportation, river transportation, or sea transportation can be selected according to actual needs, and it is widely used in various industrial, medical, scientific research, and other fields. In the air transportation device, the cryogenic storage tank can be fixed in the aircraft cargo hold, and through special fixing devices and shock absorption systems, ensure stability and safety during flight. In the land transportation device, the cryogenic storage tank can be installed on transportation tools such as trucks and trains, equipped with professional cooling systems and monitoring systems to monitor the temperature and pressure inside the storage tank in real time, ensuring the safety and reliability of the transportation process. In the river transportation and sea transportation devices, the cryogenic storage tank is usually fixed in the cargo hold of the ship, and through professional fixing and heat insulation measures, effectively resist the influence of wind waves and temperature changes on the substances inside the storage tank.

[0105] The design of the fluid transportation device fully considers the safety and stability of the cryogenic storage tank in various transportation environments. The high-efficiency heat insulation performance of the enclosure system ensures that the low-temperature substances inside the storage tank will not be affected by external temperature changes during long-distance transportation. At the same time, the close combination of the device main body and the cryogenic storage tank improves the overall transportation efficiency and safety.

[0106] Whether it is the strictly controlled low-temperature environment in air transportation equipment or the complex climate conditions that may be faced in land, river, and sea transportation, the fluid transportation equipment of the present application can provide reliable protection. This fluid transportation equipment is not only applicable to the transportation of temperature-sensitive substances in specific industries such as pharmaceuticals and chemicals, but also widely used in fields such as food and cold chain logistics to meet the low-temperature transportation needs of different industries.

[0107] The design of the fluid transportation equipment fully considers the heat insulation performance and safety of the low-temperature storage tank. By applying the low-temperature storage tank enclosure system as described above to the low-temperature storage tank, it is ensured that the storage tank can maintain an efficient heat insulation effect under various transportation conditions, preventing the stored substances from being damaged or endangered due to temperature changes. The integrated design of the equipment body and the low-temperature storage tank not only improves the stability of the overall structure but also optimizes the space utilization, making the fluid transportation more efficient and economical.

[0108] Whether it is air, land, river, or sea transportation, the fluid transportation equipment can meet the needs of different transportation modes. Its flexible configuration and strong heat insulation performance make it an ideal choice for various low-temperature fluid transports. At the same time, the reliability and durability of the equipment have also been rigorously tested and verified to ensure stable operation in various harsh environments.

[0109] In the accompanying drawings of the present application, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0110] The above are only the preferred examples of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A cryogenic storage tank, characterized in that: include: A protective housing having an assembly cavity; A containment system installed in the assembly cavity, wherein the containment system can cover the inner wall of the assembly cavity and form a containing cavity, wherein the containing cavity can store a cryogenic fluid; The enclosure system comprises a plurality of heat insulation units spliced ​​to each other and a splicing assembly arranged on the heat insulation units, wherein the splicing assembly comprises at least one set of matching first splicing parts and second splicing parts, and the first splicing parts are detachably connected to the second splicing parts; There is a gap between two adjacent insulation units to form a heat path. A first sealing surface is provided on the first splicing portion, and a second sealing surface is provided on the second splicing portion. During the storage of the low-temperature fluid, the insulation unit at least partially shrinks toward the central area, and the first sealing surface and the second sealing surface abut against each other and block the heat path.

2. The cryogenic storage tank according to claim 1, characterized in that: The heat insulation unit comprises a first assembly plate, a heat insulation body and a second assembly plate, wherein the first assembly plate is connected to the inner wall of the assembly cavity, the heat insulation body is connected to the first assembly plate, and the second assembly plate is connected to the heat insulation body; The splicing assembly is arranged on the peripheral side of the insulation body. In two adjacent insulation bodies, the first splicing part is arranged on one of the insulation bodies, and the second splicing part is arranged on the other insulation body. The first splicing part and the second splicing part can be slidably connected during the assembly process of the insulation unit.

3. The cryogenic storage tank according to claim 1, characterized in that: The first joint portion is a convex structure, the second joint portion is a concave structure, the convex structure is provided with at least one extension area, the concave structure is provided with at least one sealing area, and the extension area is at least partially located in the sealing area; The first sealing surface is arranged in the extension area, and the second sealing surface is arranged in the sealing area.

4. The cryogenic storage tank according to claim 3, characterized in that: The cross-sectional size of the protrusion structure is smaller than the cross-sectional size of the groove structure, and the protrusion structure can be slidably connected and filled into the groove structure.

5. The cryogenic storage tank according to claim 3, characterized in that: The first splicing part is provided on both opposite sides of the heat insulation unit; or, the second splicing part is provided on both opposite sides of the heat insulation unit; or, the first splicing part is provided on one of the two opposite sides of the heat insulation unit, and the second splicing part is provided on the other side; When both opposite sides of the heat insulation unit are the second splicing parts, two of the first splicing parts are spliced ​​to form a two-way connecting member, and the two layers of the two-way connecting member can be connected to one of the groove structures respectively.

6. The cryogenic storage tank according to claim 3, characterized in that: The protrusion structure includes at least one of a T-shaped protrusion, an L-shaped protrusion, a dovetail-shaped protrusion, an F-shaped protrusion, a Z-shaped protrusion, and an H-shaped protrusion.

7. The cryogenic storage tank according to any one of claims 1 to 6, characterized in that: A first sealing gasket is arranged on the first sealing surface, and a second sealing gasket is arranged on the second sealing surface.

8. The cryogenic storage tank according to any one of claims 1 to 6, characterized in that: The first splicing portion is provided with a first reinforcement portion, and the second splicing portion is provided with a second reinforcement portion.

9. The cryogenic storage tank according to claim 8, characterized in that: The first reinforcement portion is embedded in the first splicing portion, and the second reinforcement portion is embedded in the second splicing portion; Alternatively, the first reinforcement portion wraps around the surface of the first splicing portion, and the second reinforcement portion wraps around the surface of the second splicing portion.

10. A fluid transport device, characterized in that: It comprises the cryogenic storage tank and the equipment body according to any one of claims 1 to 9, wherein the cryogenic storage tank is arranged on the equipment body.

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