Liquid hydrogen transport vehicle, liquid hydrogen storage tank and supporting structure of liquid hydrogen storage tank

Abstract

The invention belongs to the technical field of liquid hydrogen transportation, and provides a liquid hydrogen transport vehicle, a liquid hydrogen storage tank and a supporting structure of the liquid hydrogen storage tank. The supporting structure is used for supporting an inner tank body of the liquid hydrogen storage tank in an outer tank body, and comprises a support fixedly connected with the outer side wall of the inner tank body; the supporting body is provided with a pair of flat base plates, a double-S-shaped supporting plate, an arched plate and a stud which are connected in sequence; and a fastener; wherein the pair of flat base plates are symmetrically arranged at intervals and are connected with the support, the convex cambered surface of the cambered plate is attached to the inner side wall of the outer tank body, and the stud penetrates out of the outer tank body and then is connected with the fastener. The liquid hydrogen storage tank comprises a plurality of sets of supporting structures. The liquid hydrogen transport vehicle comprises a liquid hydrogen storage tank. Through the heat insulation gap formed by bending the pair of flat base plates arranged at intervals and the double-S-shaped supporting plate for multiple times, the heat conduction area can be effectively reduced, the heat conduction path is increased, heat leakage is reduced, and the overall heat insulation performance of the liquid hydrogen storage tank is improved, so that the evaporation rate of liquid hydrogen is reduced, the lossless storage time of the liquid hydrogen storage tank is prolonged, and the difficulty of long-distance transportation of the liquid hydrogen is reduced.

Description

Technical Field

[0001] This invention relates to the field of liquid hydrogen transportation technology, specifically to a liquid hydrogen transport vehicle, a liquid hydrogen storage tank, and its supporting structure. Background Technology

[0002] Liquid hydrogen, commonly known as liquid hydrogen, has a density of 70.8 kg / m³ at -253°C. 3 Liquid hydrogen has a low temperature, low density, and high insulation requirements. In the aerospace field, it is often used as a propellant for rocket launches, and it is now gradually being used in civilian applications as fuel for new energy vehicles.

[0003] After production, liquid hydrogen is typically stored temporarily in tanks before being transported to target users (such as hydrogen refueling stations) by truck. As storage and transportation equipment for liquid hydrogen, the tanks require excellent insulation performance, i.e., low heat leakage, to improve the utilization rate of liquid hydrogen, reduce liquid loss, and increase economic efficiency. Heat leakage from storage tanks occurs through three methods: heat conduction, heat convection, and heat radiation. Heat convection and heat radiation leakage can be addressed by creating a high vacuum and by covering the inner tank with an insulation layer. Heat conduction, however, is primarily generated by the supporting structure, and its design involves not only heat leakage but also structural strength and safety considerations.

[0004] Currently, traditional support structures can ensure the structural strength and safety of liquid hydrogen storage tanks, but they have high thermal conductivity and poor insulation, which leads to a high evaporation rate of liquid hydrogen in the tank, a short time for non-destructive storage of liquid hydrogen, and increases the difficulty of long-distance transportation of liquid hydrogen.

[0005] Therefore, it is necessary to develop a support structure with low heat leakage to meet the insulation performance requirements of liquid hydrogen storage tanks, while reducing the difficulty of long-distance transportation of liquid hydrogen. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a liquid hydrogen transport vehicle, a liquid hydrogen storage tank, and its supporting structure, thereby solving the problems of high thermal conductivity and poor insulation in existing supporting structures, which lead to high evaporation rates of liquid hydrogen in the storage tank, short non-destructive storage time of liquid hydrogen, and increased difficulty in long-distance transportation of liquid hydrogen.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A support structure for a liquid hydrogen storage tank, used to support the inner tank body of the liquid hydrogen storage tank within an outer tank body, the support structure comprising:

[0009] The support is fixedly connected to the outer wall of the inner tank.

[0010] The support body comprises a pair of flat pads, a double S-shaped support plate, an arc-shaped plate, and studs connected in sequence; and

[0011] fastener;

[0012] Among them, a pair of flat pads are arranged symmetrically and at intervals and are connected to the support; the convex arc surface of the arc-shaped plate is in contact with the inner side wall of the outer tank; and the stud passes through the outer tank and is connected to the fastener.

[0013] Optionally, the support has a concave arc surface for welding connection with the outer side wall of the inner tank. The side of the support away from the inner tank is provided with a flat boss. Two sets of screws are vertically welded on the flat boss, and three screws are arranged at equal intervals in each set.

[0014] A pair of flat pads are symmetrically and spaced apart and welded to the bottom surface of the double S-shaped support plate. Each flat pad has three through holes at equal intervals.

[0015] The screw passes through the through hole and is threaded with a nut to press the flat washer onto the flat boss;

[0016] The double S-shaped support plate is made into a multi-layered spaced structure with two S-shaped sections connected in the longitudinal section by multiple bending. Each layer has an open end and a closed end.

[0017] The longitudinal section of the bow-shaped plate has a bow-shaped structure and it is welded to the top surface of the double S-shaped support plate;

[0018] The stud is welded to the center of the convex arc surface of the bow-shaped plate, and after passing through the hole opened on the outer tank, it is threadedly connected to the fastener.

[0019] Optionally, it also includes a limiting component to prevent permanent deformation of the double S-shaped support plate.

[0020] Optionally, the limiting component includes wedge-shaped strips movably disposed at the open ends of each layer of the double S-shaped support plate, with rod shafts at both ends of the wedge-shaped strips, and each rod shaft hinged to a slider;

[0021] Each layer of the double S-shaped support plate is provided with a guide rod with blocks at both ends on one side at intervals. The slider is slidably connected to the guide rod and movably abuts against one of the blocks.

[0022] A spring is fitted onto the guide rod, and both ends of the spring are respectively connected to the other stop and slider.

[0023] Each layer of the double S-shaped support plate is provided with a push block with a first inclined surface on the other side, and the slider is provided with a second inclined surface away from the spring, and the second inclined surface slides in cooperation with the first inclined surface.

[0024] Optionally, the inner side of the open end of each layer of the double S-shaped support plate is provided with symmetrical upper and lower baffles.

[0025] The cross-section of the baffle is a right-angled triangle, and the hypotenuse of the baffle can be fitted together with the wedge-shaped surface of the wedge-shaped strip.

[0026] Optionally, the wedge-shaped strip is made of fiberglass.

[0027] A liquid hydrogen storage tank, comprising:

[0028] Multiple sets of any of the above-mentioned support structures;

[0029] The multiple sets of support structures are divided into two groups of equal quantity, and the support structures in each group are evenly distributed circumferentially between the inner tank and the outer tank;

[0030] One set of the support structures is located at the front end of the liquid hydrogen storage tank, away from the external pipeline, with the through hole on the flat pad of its corresponding support body being an elongated hole; the other set of the support structures is located at the rear end of the liquid hydrogen storage tank, near the external pipeline, with the through hole on the flat pad of its corresponding support body being a round hole.

[0031] Optionally, the number of support structures in each group is 6 sets.

[0032] Optionally, the cavity between the inner tank and the outer tank is in a high vacuum state, and the outer wall of the inner tank is covered with an insulation layer, which is made of variable density insulation material through multi-layer winding.

[0033] A liquid hydrogen transport vehicle, comprising:

[0034] The liquid hydrogen storage tank described in any one of the above; and

[0035] A vehicle body with a cab;

[0036] The liquid hydrogen storage tank is fixedly installed on the vehicle body, which is a semi-trailer.

[0037] Compared with the prior art, the beneficial effects of the present invention are:

[0038] 1. The heat insulation gap formed by multiple bends of a pair of spaced flat pads and double S-shaped support plates can effectively reduce the heat conduction area, increase the heat conduction path, reduce heat leakage, and improve the overall heat insulation performance of the liquid hydrogen storage tank, thereby reducing the liquid hydrogen evaporation rate, extending its non-destructive storage time, and reducing the difficulty of long-distance transportation of liquid hydrogen.

[0039] 2. The limiting components protect the double S-shaped support plates from permanent deformation, effectively extending the service life of the support and improving the safety and stability of long-distance liquid hydrogen transportation; at the same time, they maintain the thermal insulation gap between the layers of the double S-shaped support plates, ensuring the overall thermal insulation effect of the liquid hydrogen storage tank.

[0040] 3. Through the combined action of the upper and lower baffles and the wedge-shaped strips, the protection of the double S-shaped support plate can be enhanced, and the insulation gap between the layers of the double S-shaped support plate can be further maintained, thus ensuring the overall insulation effect of the liquid hydrogen storage tank.

[0041] 4. Fiberglass is a poor conductor of heat, which can effectively reduce the efficiency of heat conduction through the fiberglass wedge strips. This protects the double S-shaped support plate while minimizing heat exchange between the layers of the double S-shaped support plate through the wedge strips. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the main structure of the liquid hydrogen transport vehicle in this invention;

[0044] Figure 2 This is a schematic cross-sectional view of the liquid hydrogen storage tank in this invention.

[0045] Figure 3 This is a schematic diagram of the three-dimensional structure of the support;

[0046] Figure 4 A three-dimensional structural diagram of the support body and limiting components;

[0047] Figure 5 for Figure 4 A magnified schematic diagram of the central part of the I structure;

[0048] Figure 6 This is a schematic diagram of the main cross-section of the support body and the limiting components;

[0049] Figure 7 A schematic diagram of the three-dimensional structure of a support body with a through hole in the shape of an elongated strip.

[0050] Figure 8 A schematic diagram of the three-dimensional structure of a support body with a through hole that is round;

[0051] Figure 9 This is a schematic diagram of the three-dimensional structure of the wedge-shaped strip;

[0052] Figure 10 This is a schematic diagram of the three-dimensional structure of the slider. Detailed Implementation

[0053] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0054] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0058] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention.

[0059] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0060] See Figures 1-10 As shown, in a first aspect, the present invention provides a support structure 100 for a liquid hydrogen storage tank, used to support the inner tank body 210 of the liquid hydrogen storage tank 200 within an outer tank body 220. The support structure 100 includes:

[0061] Support 110 is fixedly connected to the outer wall of the inner tank 210;

[0062] Support body 120, which is provided with a pair of flat pads 121, a double S-shaped support plate 122, an arc-shaped plate 123 and a stud 124 connected in sequence; and

[0063] Fastener 130;

[0064] Among them, a pair of flat pads 121 are arranged symmetrically and at intervals and are connected to the support 110. The convex arc surface of the arc plate 123 is in contact with the inner side wall of the outer tank 220. The stud 124 passes through the outer tank 220 and is connected to the fastener 130.

[0065] Specifically, the support 110 has a concave arc surface for welding to fit against the outer wall of the inner tank 210. A flat boss 111 is provided on the side of the support 110 away from the inner tank 210. Two sets of screws 112 are vertically welded to the flat boss 111, with three screws evenly spaced in each set. A pair of flat washers 121 are symmetrically and spacedly welded to the bottom surface of the double S-shaped support plate 122. Each flat washer 121 has three through holes 121A evenly spaced. The screws 112 pass through the through holes 121A and are threaded with nuts (not shown in the figure) to secure the flat washers. 121 is pressed onto the flat boss 111; the double S-shaped support plate 122 is made into a multi-layered spaced structure with two S-shaped sections connected in the longitudinal section by multiple bending (such as stamping), and each layer has an open end and a closed end (i.e., the rest of the parts do not contact except at the bending point); the bow-shaped plate 123 has a bow-shaped structure in the longitudinal section and is welded to the top surface of the double S-shaped support plate 122; the stud 124 is welded to the middle of the convex arc surface of the bow-shaped plate 123, and after it passes through the hole opened on the outer tank 220, it is threadedly connected to the fastener 130 (such as a combination of special nuts and washers). The bottom surface of the double S-shaped support plate 122 contacts the flat boss 111 through a pair of spaced-apart flat pads 121, thus reducing the heat conduction area. Furthermore, the multi-layered, spaced double S-shaped support plate 122 forms heat insulation gaps between layers except at bends, further reducing the heat conduction area. Simultaneously, the multiple bends of the double S-shaped support plate 122 not only extend the heat conduction length, significantly reducing heat leakage that is inversely proportional to length, but also possess elasticity and resilience, absorbing the dynamic loads borne by the liquid hydrogen storage tank 200 during transportation to achieve buffering, thereby improving the structural strength and stability of the liquid hydrogen storage tank 200. In other words, the heat insulation gaps formed by the multiple bends of the pair of spaced-apart flat pads 121 and the double S-shaped support plate 122 effectively reduce the heat conduction area, lengthen the heat conduction path, reduce heat leakage, and improve the overall insulation performance of the liquid hydrogen storage tank, thereby reducing the liquid hydrogen evaporation rate, extending its non-destructive storage time, and reducing the difficulty of long-distance liquid hydrogen transportation.

[0066] The aforementioned support structure 100 also includes a limiting component 140 to prevent permanent deformation of the double S-shaped support plate 122. Specifically, the limiting component 140 includes a wedge-shaped strip 141 movably disposed at the open end of each layer of the double S-shaped support plate 122. Each end of the wedge-shaped strip 141 is provided with a rod shaft 141A, and each rod shaft 141A is hinged to a slider 142. Each layer of the double S-shaped support plate 122 is provided on one side with a guide rod 122B with stops 122A at both ends. The slider 142 is slidably connected to the guide rod 122B (i.e., the slider 142 is fitted on the guide rod 122B) and movably abuts against a stop 122A. A spring 143 is fitted on the guide rod 122B. The two ends of the spring 143 are respectively abutting against another stop 122A and the slider 142. Each layer of the double S-shaped support plate 122 is provided on the other side with a push block 122C with a first inclined surface. The slider 142 is provided with a second inclined surface away from the spring 143, and the second inclined surface slides in cooperation with the first inclined surface. When an external force causes the open ends of each layer of the double S-shaped support plate 122 to tend to close, the pusher block 122C pushes the second inclined plane through the first inclined plane, causing the slider 142 to slide on the guide rod 122B. The spring 143 is compressed, and the slider 142 slides, causing the wedge strip 141 to extend into the open ends of each layer of the double S-shaped support plate 122, thereby preventing it from closing further and thus preventing the double S-shaped support plate 122 from undergoing permanent deformation. When the external force disappears and the open ends of each layer of the double S-shaped support plate 122 recover their deformation under their own action, the spring 143 resets, pushes the slider 142 to slide in the opposite direction, and causes the wedge strip 141 to move out of the open ends of each layer of the double S-shaped support plate 122. In other words, the limiting component 140 can protect the double S-shaped support plate 122 from permanent deformation, effectively extend the service life of the support body 120, and improve the safety and stability of long-distance liquid hydrogen transportation; at the same time, it can maintain the heat insulation gap between the layers of the double S-shaped support plate 122, ensuring the overall heat insulation effect of the liquid hydrogen storage tank.

[0067] To enhance the protection of the double S-shaped support plate 122, the inner side of the open end of each layer of the double S-shaped support plate 122 is provided with symmetrical upper and lower baffles 122D. The cross-section of the baffle 122D is a right-angled triangular structure, and the surface where its hypotenuse is located can be attached to the wedge-shaped surface of the wedge-shaped strip 141. When the wedge strip 141 extends into the open end of each layer of the double S-shaped support plate 122, the wedge-shaped surface of the wedge strip 141 abuts against the inclined surface of the baffle strip 122D. At this time, the closing downward pressure is divided into a radial component pointing to the bow plate 123 (stud 124) and a tangential component pointing to the closed end of each layer of the double S-shaped support plate 122. The radial components at the upper and lower baffle strips 122D cancel each other out, while the tangential component can squeeze each layer of the double S-shaped support plate 122 from its open end to its closed end. This prevents the thermal insulation gap between the layers of the double S-shaped support plate 122 from decreasing or tending to return to its original position due to the closure of the open end, thus achieving the purpose of protecting the double S-shaped support plate 122. In other words, the combined action of the upper and lower baffles 122D and the wedge strips 141 can enhance the protection of the double S-shaped support plate 122, further maintain the thermal insulation gap between the layers of the double S-shaped support plate 122, and ensure the overall thermal insulation effect of the liquid hydrogen storage tank.

[0068] In this embodiment, the wedge strip 141 is preferably made of fiberglass. Fiberglass is a poor conductor of heat, which can effectively reduce the efficiency of heat conduction through the fiberglass wedge strip 141, thereby protecting the double S-shaped support plate 122 while minimizing heat exchange between the layers of the double S-shaped support plate 122 through the wedge strip 141.

[0069] In a second aspect, the present invention provides a liquid hydrogen storage tank 200, comprising:

[0070] Multiple sets of the aforementioned support structures 100;

[0071] Multiple sets of support structures 100 are divided into two groups of equal quantity, with each group of support structures 100 evenly distributed circumferentially between the inner tank 210 and the outer tank 220;

[0072] One set of support structures 100 is located at the front end of the liquid hydrogen storage tank 200, away from the external pipeline, with a through hole 121A on the flat pad 121 of the corresponding support body 120 being an elongated hole. The other set of support structures 100 is located at the rear end of the liquid hydrogen storage tank 200, near the external pipeline, with a through hole 121A on the flat pad 121 of the corresponding support body 120 being a circular hole. The elongated through hole 121A on the flat pad 120 (relative sliding between the support 110 and the flat pad 121) can reduce or release stress concentration caused by thermal expansion and contraction of the inner tank 210. The circular through hole 121A on the flat pad 121 (with the inner tank 210 and outer tank 220 in relatively fixed positions) can protect the external pipeline of the liquid hydrogen storage tank 200 from misalignment, thereby ensuring the overall structural stability of the liquid hydrogen storage tank 200.

[0073] In this embodiment, there are 6 sets of each support structure 100.

[0074] The cavity between the inner tank 210 and the outer tank 220 is in a high vacuum state, and the outer wall of the inner tank 210 is covered with an insulation layer (not shown in the figure). This insulation layer is made of variable density insulation material through multi-layer winding. In this way, the problem of heat leakage due to heat convection and heat radiation between the inner tank 210 and the outer tank 220 can be effectively solved.

[0075] Thirdly, the present invention provides a liquid hydrogen transport vehicle, comprising:

[0076] The liquid hydrogen storage tank 200 mentioned above; and

[0077] Vehicle body 300 with front end (not shown in the picture);

[0078] The liquid hydrogen storage tank 200 is fixedly mounted on the vehicle body 300, which is a semi-trailer. Long-distance transportation of liquid hydrogen is achieved through the transfer via the vehicle body 300.

[0079] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the technical solutions of the present invention. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of the patent of the present invention.

Claims

1. A support structure for a liquid hydrogen storage tank, used to support the inner tank body of the liquid hydrogen storage tank within an outer tank body, characterized in that, The support structure includes: The support is fixedly connected to the outer wall of the inner tank. The support body comprises a pair of flat pads, a double S-shaped support plate, an arc-shaped plate, and studs connected in sequence; and fastener; Among them, a pair of flat pads are arranged symmetrically and at intervals and are connected to the support; the convex arc surface of the arc-shaped plate is in contact with the inner side wall of the outer tank; and the stud passes through the outer tank and is connected to the fastener.

2. The support structure for the liquid hydrogen storage tank according to claim 1, characterized in that: The support has a concave arc surface for welding to fit against the outer wall of the inner tank. The side of the support away from the inner tank is provided with a flat protrusion. Two sets of screws are vertically welded on the flat protrusion, and three screws are arranged at equal intervals in each set. A pair of flat pads are symmetrically and spaced apart and welded to the bottom surface of the double S-shaped support plate. Each flat pad has three through holes at equal intervals. The screw passes through the through hole and is threaded with a nut to press the flat washer onto the flat boss; The double S-shaped support plate is made into a multi-layered spaced structure with two S-shaped sections connected in the longitudinal section by multiple bending. Each layer has an open end and a closed end. The longitudinal section of the bow-shaped plate has a bow-shaped structure and it is welded to the top surface of the double S-shaped support plate; The stud is welded to the center of the convex arc surface of the bow-shaped plate, and after passing through the hole opened on the outer tank, it is threadedly connected to the fastener.

3. The support structure for the liquid hydrogen storage tank according to claim 2, characterized in that, It also includes a limiting component to prevent permanent deformation of the double S-shaped support plate.

4. The support structure for the liquid hydrogen storage tank according to claim 3, characterized in that: The limiting component includes wedge-shaped strips movably disposed at the open ends of each layer of the double S-shaped support plate, with rod shafts at both ends of the wedge-shaped strips, and each rod shaft is hinged to a slider. Each layer of the double S-shaped support plate is provided with a guide rod with blocks at both ends on one side at intervals. The slider is slidably connected to the guide rod and movably abuts against one of the blocks. A spring is fitted onto the guide rod, and both ends of the spring are respectively connected to the other stop and slider. Each layer of the double S-shaped support plate is provided with a push block with a first inclined surface on the other side, and the slider is provided with a second inclined surface away from the spring, and the second inclined surface slides in cooperation with the first inclined surface.

5. The support structure for the liquid hydrogen storage tank according to claim 4, characterized in that: The double S-shaped support plate has symmetrical upper and lower baffles on the inner side of the open end of each layer. The cross-section of the baffle is a right-angled triangle, and the hypotenuse of the baffle can be fitted together with the wedge-shaped surface of the wedge-shaped strip.

6. The support structure for the liquid hydrogen storage tank according to claim 4 or 5, characterized in that, The wedge-shaped strip is made of fiberglass.

7. A liquid hydrogen storage tank, characterized in that, include: Multiple sets of support structures as described in any one of claims 1 to 6; The multiple sets of support structures are divided into two groups of equal quantity, and the support structures in each group are evenly distributed circumferentially between the inner tank and the outer tank; One set of the support structures is located at the front end of the liquid hydrogen storage tank, away from the external pipeline, with the through hole on the flat pad of its corresponding support body being an elongated hole; the other set of the support structures is located at the rear end of the liquid hydrogen storage tank, near the external pipeline, with the through hole on the flat pad of its corresponding support body being a round hole.

8. The support structure for the liquid hydrogen storage tank according to claim 7, characterized in that, The number of support structures described in each group is 6 sets.

9. The support structure for the liquid hydrogen storage tank according to claim 7 or 8, characterized in that, The cavity between the inner tank and the outer tank is in a high vacuum state, and the outer wall of the inner tank is covered with an insulation layer, which is made of variable density insulation material through multi-layer winding.

10. A liquid hydrogen transport vehicle, characterized in that, include: The liquid hydrogen storage tank according to any one of claims 7 to 9; and A vehicle body with a cab; The liquid hydrogen storage tank is fixedly installed on the vehicle body, which is a semi-trailer.

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