Liquid hydrogen storage tank

Abstract

The present invention relates to the technical field of hydrogen energy storage equipment, specifically a liquid hydrogen storage tank, which mainly includes: an outer shell, a heat preservation mechanism, which is located inside the outer shell and is used to insulate the storage tank, a protective mechanism, which is arranged on the outside of the outer shell and is used to protect the outer wall of the outer shell, and a cooling mechanism, which is arranged inside the protective mechanism. When the protective plate is hit, the movable plate moves to squeeze the soft storage bag, and the coolant inside the soft storage bag is sprayed out from the nozzle through the connecting pipe and the three-way pipe. The movable plate drives the movable block to move, and the movable block drives the adjustment plate and the connecting rod to move. The connecting rod drives the rotating rod, the three-way pipe and the nozzle to rotate a certain angle. The nozzle sprays water to cool the outer shell and the protective plate surface, so that the heat of the impact is quickly cooled and not easily transferred to the inside of the storage tank. The liquid hydrogen is not easy to increase the internal pressure due to high-temperature gasification, which ensures that the storage tank is not easy to leak and explode, and improves the safety of the storage tank.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen energy storage equipment, in particular to a liquid hydrogen storage tank. Background Art

[0002] Liquid hydrogen is a liquid obtained by cooling hydrogen gas. It is a colorless, odorless, high-energy, low-temperature liquid fuel, a mixture of parahydrogen and orthohydrogen. Orthohydrogen and parahydrogen are two spin isomers of molecular hydrogen. This isomerism is caused by the two possible couplings of the nuclear spins of the two hydrogen atoms. In order to facilitate the storage of hydrogen energy, people generally compress hydrogen energy into liquid form and then store it in storage tanks to store liquid hydrogen energy.

[0003] When the outer wall of an existing liquid hydrogen storage tank is hit, the impact area is prone to generate high heat. This heat is a potential safety hazard because if it is not cooled in time, it will be quickly transferred to the inside of the storage tank. Once this happens, the liquid hydrogen will vaporize due to the high temperature, causing the internal pressure to rise sharply. This sudden increase in pressure may cause the storage tank to rupture, leak or even explode.

[0004] Therefore, a liquid hydrogen storage tank is proposed. Summary of the invention

[0005] The object of the present invention is to provide a liquid hydrogen storage tank to solve the problems raised by the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A liquid hydrogen storage tank, comprising: an outer shell,

[0008] A supporting leg, arranged below the outer shell;

[0009] A heat preservation mechanism, located inside the outer shell, for thermally insulating the storage tank, the heat preservation mechanism comprising a shell 1 located inside the outer shell;

[0010] A protection mechanism is arranged outside the outer shell and is used to protect the outer wall of the outer shell. The protection mechanism includes two fixing plates fixedly installed on the outer wall of the outer shell, and a fixing box 1 is fixedly installed on the upper ends of the two fixing plates near the side surfaces;

[0011] The cooling mechanism is arranged inside the protection mechanism and is used for spraying water to cool the protection mechanism and the outer shell. The cooling mechanism includes a soft storage bag fixedly installed on the inner wall of the lower end of the fixing box.

[0012] Preferably, a support plate is fixedly installed on the top surface of the support leg, the inner wall of the support plate is fixedly connected to the outer wall of the outer shell, the inner wall of the outer shell is fixedly connected to the outer wall of shell one through a fixing block, and a vacuum chamber is formed between shell one and the outer shell.

[0013] Preferably, an inner liner is fixedly installed on the inner wall of the shell through an insulation layer, an air intake pipe is arranged on the left side of the outer shell, and the right end of the air intake pipe is fixedly penetrated through the outer wall of the outer shell, the outer wall of the shell, the outer wall of the insulation layer and the outer wall of the inner liner to extend into the inner liner.

[0014] Preferably, two fixed boxes 2 are fixedly installed near the sides of the two fixed plates, two movable plates 1 are slidably installed on the inner wall of the fixed box 1, multiple springs 1 are fixedly installed near the sides of the two movable plates 1, and multiple springs 2 are respectively fixedly installed on the inner walls of one side of the inner walls of the two fixed boxes 2.

[0015] Preferably, the other ends of the plurality of springs are respectively fixedly mounted with two movable plates 2, the side surfaces of the two movable plates 2 are respectively slidably connected to the inner walls of the two fixed boxes 2, the front and rear sides of the fixed box 1 are respectively provided with a plurality of groove bodies 1, and the top surfaces of the two fixed boxes 2 are respectively provided with a plurality of groove bodies 2.

[0016] Preferably, the side surfaces of the two movable plates are fixedly connected to the side surfaces of the two movable plates through a plurality of arc plates, the side surfaces of the plurality of arc plates are slidingly connected to the inner walls of the plurality of trough bodies one and the plurality of trough bodies two, the outer walls of the plurality of arc plates are respectively fixedly installed with a plurality of fixing rods, the other ends of the plurality of fixing rods are respectively fixedly installed with a plurality of protective plates, and the outer walls of the plurality of protective plates are respectively penetrated with a plurality of through holes.

[0017] Preferably, the side surfaces of the soft storage bag are respectively connected to the two movable plates in a sliding manner close to the side surfaces, a liquid inlet pipe is fixedly installed through the outer wall of the right end of the soft storage bag, the right end of the liquid inlet pipe is fixedly installed through the inner wall of the fixed box and extends to the outer side of the fixed box, and a one-way valve is fixedly installed at one end of the liquid inlet pipe.

[0018] Preferably, a plurality of connecting tubes are fixedly installed on the outer wall of the lower end of the soft storage bag, and the lower ends of the plurality of connecting tubes are fixedly installed through the inner wall of the lower end of the fixed box and extend to the bottom of the fixed box. The lower ends of the plurality of connecting tubes are rotatably connected to three-way tubes through connectors, and nozzles are fixedly installed on both ends of the plurality of three-way tubes.

[0019] Preferably, a plurality of movable blocks are fixedly installed on the bottom surfaces of the two movable plates, a plurality of movable grooves are opened through the bottom surface of the second fixed box, the side surfaces of the plurality of movable blocks are slidingly connected to the inner walls of the plurality of movable grooves, the bottom surfaces of the plurality of movable blocks are respectively hinged with adjustment plates, and the other ends of the plurality of adjustment plates are respectively hinged with connecting rods and rotating rods.

[0020] Preferably, a plurality of the connecting tube outer walls are respectively fixedly mounted with a fixing sleeve, a plurality of the fixing sleeve bottom surfaces are respectively provided with two arc-shaped grooves, a plurality of the connecting rods have the other ends respectively fixedly connected with a plurality of tee tube outer walls, a plurality of rotating rod upper end outer walls are respectively slidably connected with a plurality of arc-shaped groove inner walls, a plurality of rotating rod upper ends are respectively fixedly mounted with a circular plate, a plurality of the circular plates bottom surfaces are respectively slidably connected with a plurality of fixing sleeve top surfaces.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention is that the protective plate is hit, and at this time, the movable plate moves to squeeze the soft storage bag, and the coolant in the soft storage bag is sprayed out from the nozzle through the connecting pipe and the three-way pipe. When the movable plate moves, it drives the movable block to move, the movable block drives the adjusting plate to move, the adjusting plate drives the connecting rod to move, the connecting rod drives the rotating rod and the three-way pipe to rotate a certain angle, the three-way pipe drives the nozzle to rotate a certain angle, and multiple three-way pipes drive multiple nozzles to rotate in reverse and staggered directions, and then the nozzle sprays water to cool the surface of the outer shell and the protective plate, so that the heat of the impact is quickly cooled and is not easily transferred to the inside of the storage tank. Liquid hydrogen is not easily gasified at high temperature to cause the internal pressure to increase, ensuring that the storage tank is not easily leaked and exploded, and improving the safety of the storage tank.

[0023] When the protective plate is hit, the protective plate drives the fixed rod to move, the fixed rod drives the arc plate to move and extend, the arc plate drives the moving plate 1 and the moving plate 2 to move, the moving plate 1 and the moving plate 2 move and squeeze the spring 1 and the spring 2 respectively, and the moving plate 1 and the moving plate 2 are shock-absorbing and buffered, and then the protective plate is shock-absorbing and buffered, so that the impact force of the collision is buffered and absorbed, and is not easily transmitted to the storage tank, thereby further ensuring the safety of the storage tank;

[0024] By setting the fixing block, shell one, vacuum chamber, thermal insulation layer and liner, the liner is double-insulated under the action of the vacuum chamber and the thermal insulation layer, so that the influence of the external temperature on the liquid hydrogen inside the liner is reduced, the liquid hydrogen is not easy to gasify, and the safety of storage is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is an exploded view of the three-dimensional structure of the present invention;

[0027] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the outer shell of the present invention;

[0028] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0029] Figure 5 It is a cross-sectional schematic diagram of the three-dimensional structure of the fixing box 2 of the present invention;

[0030] Figure 6 It is a cross-sectional schematic diagram of a three-dimensional structure of a fixing box of the present invention;

[0031] Figure 7 It is a schematic diagram of a three-dimensional structure of a fixing box of the present invention;

[0032] Figure 8 It is a partial three-dimensional structure explosion diagram of the present invention;

[0033] Fig. 9 It is a schematic diagram of the three-dimensional structure of the nozzle of the present invention;

[0034] Fig.10 For the present invention Figure 7 Enlarged view of point A in the middle.

[0035] In the figure:

[0036] 1. outer shell; 101. support leg; 102. support plate;

[0037] 2. Insulation mechanism; 201. Fixing block; 202. Shell 1; 203. Vacuum chamber; 204. Insulation layer; 205. Inner liner; 206. Air inlet pipe;

[0038] 3. Protective mechanism; 301. Fixed plate; 302. Fixed box 1; 303. Fixed box 2; 304. Moving plate 1; 305. Spring 1; 306. Spring 2; 307. Moving plate 2; 308. Slot body 1; 309. Slot body 2; 310. Arc plate; 311. Fixed rod; 312. Protective plate.

[0039] 4. Cooling mechanism; 401. Soft storage bag; 402. Liquid inlet pipe; 403. One-way valve; 404. Connecting pipe; 405. Three-way pipe; 406. Connector; 407. Spray nozzle; 408. Moving block; 409. Moving groove; 410. Adjusting plate; 411. Connecting rod; 412. Fixed sleeve; 413. Arc groove; 414. Rotating rod; 415. Round plate. DETAILED DESCRIPTION

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0042] like Figure 1-10 As shown, the present application provides a liquid hydrogen storage tank, including: an outer shell 1, a support leg 101, which is arranged below the outer shell 1, an insulation mechanism 2, which is located inside the outer shell 1 and is used to insulate the storage tank, the insulation mechanism 2 includes a shell 202 located inside the outer shell 1, a protection mechanism 3, which is arranged outside the outer shell 1 and is used to protect the outer wall of the outer shell 1, the protection mechanism 3 includes two fixed plates 301 fixedly installed on the outer wall of the outer shell 1, and a fixing box 302 is fixedly installed on the upper ends of the two fixing plates 301 near the sides, a cooling mechanism 4, which is arranged inside the protection mechanism 3 and is used to spray water to cool the protection mechanism 3 and the outer shell 1, and the cooling mechanism 4 includes a soft storage bag 401 fixedly installed on the inner wall of the lower end of the fixing box 302.

[0043] In this embodiment: through the setting of the insulation mechanism 2, the storage tube is double-insulated, which reduces the influence of the external temperature on the liquid hydrogen inside the storage tank. The liquid hydrogen is not easy to gasify, which ensures the safety of storage. Under the action of the protection mechanism 3, the protection plate 312 performs shock absorption on the impact part, so that the impact force of the impact is buffered and absorbed, and is not easy to be transmitted to the storage tank, further ensuring the safety of the storage tank. Under the action of the cooling mechanism 4, when the protection plate 312 is hit, the nozzle 407 sprays water to cool the surface of the outer shell 1 and the protection plate 312, so that the heat of the impact is quickly cooled and is not easy to be transmitted to the inside of the storage tank. The liquid hydrogen is not easy to increase the internal pressure due to high-temperature gasification, which ensures that the storage tank is not easy to leak and explode, thereby improving the safety of the storage tank.

[0044] Specifically, Figure 1-3 As shown, a support plate 102 is fixedly installed on the top surface of the support leg 101, the inner wall of the support plate 102 is fixedly connected to the outer wall of the outer shell 1, and the inner wall of the outer shell 1 is fixedly connected to the outer wall of the shell 1 202 through a fixing block 201, and a vacuum chamber 203 is formed between the shell 1 202 and the outer shell 1.

[0045] In this embodiment: the support plate 102 is supported by the support legs 101, and the support plate 102 supports and fixes the outer shell 1, so that the outer shell 1 is placed more stably, and through the vacuum cavity 203 formed between the shell 1 202 and the outer shell 1, the vacuum cavity 203 can reduce the heat transfer between the shell 1 202 and the outer shell 1, thereby ensuring the thermal insulation performance of the storage tank.

[0046] Specifically, Figure 1-3 As shown, an inner liner 205 is fixedly installed on the inner wall of the shell 202 through the insulation layer 204, and an air intake pipe 206 is arranged on the left side of the outer shell 1. The right end of the air intake pipe 206 is fixedly passed through the outer wall of the outer shell 1, the outer wall of the shell 202, the outer wall of the insulation layer 204 and the outer wall of the inner liner 205, and extends to the interior of the inner liner 205.

[0047] In this embodiment, the thermal insulation layer 204 is provided between the shell 1 202 and the inner liner 205 . The thermal insulation layer 204 reduces the heat transfer between the inner liner 205 and the shell 1 202 , and further ensures that the inner liner 205 keeps the liquid hydrogen inside warm.

[0048] Specifically, Figure 1-8 As shown, two fixed boxes 303 are fixedly installed near the sides of the two fixed plates 301, two movable plates 304 are slidably installed on the inner wall of the fixed box 1 302, multiple springs 305 are fixedly installed on the two movable plates 304 near the sides, and multiple springs 306 are fixedly installed on the inner walls of one side of the inner walls of the two fixed boxes 303.

[0049] In this embodiment, by setting the spring 1 305, when the moving plate 1 304 is squeezed and moved, the elastic force applied by the spring 1 305 to the moving plate 1 304 makes the moving plate 1 304 be shock-absorbing and buffered, absorbs the energy of movement, and reduces the vibration of the device.

[0050] Specifically, Figure 1-8 As shown, two movable plates 307 are fixedly installed at the other ends of the multiple springs 306, and the sides of the two movable plates 307 are slidingly connected to the inner walls of the two fixed boxes 303 respectively. The front and rear sides of the fixed box 302 are respectively provided with multiple grooves 308, and the top surfaces of the two fixed boxes 303 are respectively provided with multiple grooves 309.

[0051] In this embodiment, by setting the second spring 306, when the second moving plate 307 is squeezed and moved, the elastic force applied by the second spring 306 to the second moving plate 307 makes the second moving plate 307 shock-absorbing and buffered, absorbs the energy of movement, and reduces the vibration of the device.

[0052] Specifically, Figure 1-8As shown, the sides of the two movable plates 1 304 are fixedly connected to the sides of the two movable plates 2 307 through a plurality of arc plates 310, the sides of the plurality of arc plates 310 are slidingly connected to the inner walls of the plurality of trough bodies 1 308 and the plurality of trough bodies 2 309, the outer walls of the plurality of arc plates 310 are respectively fixedly installed with a plurality of fixing rods 311, the other ends of the plurality of fixing rods 311 are respectively fixedly installed with a plurality of protective plates 312, and the outer walls of the plurality of protective plates 312 are respectively penetrated with a plurality of through holes.

[0053] In this embodiment: when the protective plate 312 is hit and squeezed, the protective plate 312 moves, the protective plate 312 drives the fixed rod 311 to move, the fixed rod 311 pushes the arc plate 310 to move and extend, and the arc plate 310 is shock-absorbing and buffered by the moving plate 2 307, the moving plate 1 304, the spring 2 306 and the spring 1 305, so as to ensure that the impact force on the protective plate 312 is not easily transmitted to the storage tank, so as to ensure that the storage tank is not easily damaged and vibrated, thereby improving the safety of the storage tank.

[0054] Specifically, Figure 1-10 As shown, the sides of the soft storage bag 401 are respectively connected to the two movable plates 304 close to the sides for sliding, and a liquid inlet pipe 402 is fixedly installed on the outer wall of the right end of the soft storage bag 401. The right end of the liquid inlet pipe 402 is fixedly installed through the inner wall of the fixed box 302 and extends to the outside of the fixed box 302. A one-way valve 403 is fixedly installed on one end of the liquid inlet pipe 402.

[0055] In this embodiment: through the provision of the liquid inlet pipe 402, the coolant can be conveniently added to the inside of the soft storage bag 401, and through the provision of the one-way valve 403, when the soft storage bag 401 is squeezed, the coolant inside the soft storage bag 401 will not be discharged from the liquid inlet pipe 402, ensuring that the liquid inside the soft storage bag 401 is not easy to leak.

[0056] Specifically, Figure 1-10 As shown, a plurality of connecting tubes 404 are fixedly installed on the outer wall of the lower end of the soft storage bag 401, and the lower ends of the plurality of connecting tubes 404 are fixedly installed through the inner wall of the lower end of the fixing box 302 and extend to the bottom of the fixing box 302. The lower ends of the plurality of connecting tubes 404 are rotatably connected to three-way tubes 405 through connectors 406, and nozzles 407 are fixedly installed at both ends of the plurality of three-way tubes 405.

[0057] In this embodiment: the soft storage bag 401 is squeezed, and the liquid inside the soft storage bag 401 is discharged from the nozzle 407 to the outer wall of the protective plate 312 and the outer shell 1 through the connecting pipe 404 and the three-way pipe 405, thereby ensuring that the heat of the parts of the protective plate 312 and the outer shell 1 that are impacted is cooled, and the heat is not easily transferred to the liquid hydrogen inside the storage tank, ensuring that the liquid hydrogen is not easily vaporized, and the internal pressure of the storage tank is not easily excessive, causing the storage tank to explode and leak, thereby improving the safety of the storage tank.

[0058] Specifically, Figure 1-10 As shown, a plurality of moving blocks 408 are fixedly installed on the bottom surfaces of the two moving plates 304, a plurality of moving grooves 409 are opened through the bottom surface of the fixed box 303, the side surfaces of the plurality of moving blocks 408 are slidingly connected to the inner walls of the plurality of moving grooves 409, the bottom surfaces of the plurality of moving blocks 408 are respectively hinged with adjustment plates 410, and the other ends of the plurality of adjustment plates 410 are respectively hinged with connecting rods 411 and rotating rods 414.

[0059] In this embodiment: by moving the movable plate 304, the movable block 408 is moved, the movable block 408 drives the adjustment plate 410 to move, the adjustment plate 410 drives the connecting rod 411 and the rotating rod 414 to rotate, and then the three-way pipe 405 and the nozzle 407 can be driven to rotate a certain angle to ensure that the nozzle 407 can fully spray water to cool the outer shell 1 and the outer wall of the protective plate 312.

[0060] Specifically, Figure 1-10 As shown, the outer walls of the multiple connecting tubes 404 are respectively fixedly installed with fixing sleeves 412, the bottom surfaces of the multiple fixing sleeves 412 are respectively provided with two arc grooves 413, the other ends of the multiple connecting rods 411 are respectively fixedly connected to the outer walls of the multiple three-way pipes 405, the upper outer walls of the multiple rotating rods 414 are respectively slidably connected to the inner walls of the multiple arc grooves 413, the upper ends of the multiple rotating rods 414 are respectively fixedly installed with circular plates 415, and the bottom surfaces of the multiple circular plates 415 are respectively slidably connected to the top surfaces of the multiple fixing sleeves 412.

[0061] In this embodiment: by rotating the connecting rod 411 and the rotating rod 414, the connecting rod 411 drives the three-way pipe 405 and the nozzle 407 to rotate. When the connecting rod 411 and the rotating rod 414 rotate, the arc groove 413 limits the rotating rod 414. Under the joint action of the circular plate 415, the rotating rod 414 and the connecting rod 411, the three-way pipe 405 and the nozzle 407 can rotate more smoothly and are not easily offset.

[0062] The specific solution is as follows: under the action of the vacuum chamber 203 and the insulation layer 204, the inner liner 205 is double-insulated, reducing the influence of the external temperature on the liquid hydrogen inside the inner liner 205, and the liquid hydrogen is not easy to gasify, thereby ensuring the safety of storage. When the protective plate 312 is hit, the protective plate 312 drives the fixed rod 311 to move, and the fixed rod 311 drives the arc plate 310 to move and extend, and the arc plate 310 drives the movable plate 1 304 and the movable plate 2 307 to move, and the movable plate 1 304 and the movable plate 2 307 move while squeezing the spring 1 305 and the spring 2 306 respectively, and performing shock absorption on the movable plate 1 304 and the movable plate 2 307, and then performing shock absorption on the protective plate 312, so that the impact force of the collision is buffered and absorbed, and is not easily transmitted to the storage tank, thereby further ensuring the safety of the storage tank. At this time, the movable plate 1 304 moves The soft storage bag 401 is squeezed, and the coolant inside the soft storage bag 401 is sprayed out from the nozzle 407 through the connecting pipe 404 and the three-way pipe 405. When the movable plate 304 moves, it drives the moving block 408 to move, and the moving block 408 drives the adjusting plate 410 to move. The adjusting plate 410 drives the connecting rod 411 to move, and the connecting rod 411 drives the rotating rod 414 and the three-way pipe 405 to rotate a certain angle. The three-way pipe 405 drives the nozzle 407 to rotate a certain angle, and multiple three-way pipes 405 drive multiple nozzles 407 to rotate in opposite directions. Then, the nozzle 407 sprays water to cool the surface of the outer shell 1 and the protective plate 312, so that the heat of impact is quickly cooled and not easily transferred to the inside of the storage tank. The internal pressure of liquid hydrogen is not easily increased due to high-temperature gasification, which ensures that the storage tank is not easy to leak and explode, thereby improving the safety of the storage tank.

[0063] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary; within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0064] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A liquid hydrogen storage tank, comprising: The outer shell (1) is characterized in that A supporting leg (101) disposed below the outer shell (1); A heat-insulating mechanism (2) located inside the outer shell (1) and used to insulate the storage tank, the heat-insulating mechanism (2) comprising a shell 1 (202) located inside the outer shell (1); A protection mechanism (3) is arranged outside the outer shell (1) and is used to protect the outer wall of the outer shell (1), the protection mechanism (3) comprising two fixing plates (301) fixedly mounted on the outer wall of the outer shell (1), and a fixing box (302) is fixedly mounted on the upper ends of the two fixing plates (301) near the side surfaces; A cooling mechanism (4) is arranged inside the protection mechanism (3) and is used to spray water to cool the protection mechanism (3) and the outer shell (1), wherein the cooling mechanism (4) comprises a soft storage bag (401) fixedly mounted on the inner wall of the lower end of the fixing box (302); Two fixing boxes (303) are fixedly installed near the sides of the two fixing plates (301); two moving plates (304) are slidably installed on the inner wall of the fixing box (302); a plurality of springs (305) are fixedly installed near the sides of the two moving plates (304); and a plurality of springs (306) are fixedly installed on one side of the inner wall of the two fixing boxes (303); The other ends of the plurality of springs (306) are respectively fixedly mounted with two movable plates (307), the sides of the two movable plates (307) are respectively slidably connected to the inner walls of the two fixed boxes (303), the front and rear sides of the fixed boxes (302) are respectively provided with a plurality of grooves (308), and the top surfaces of the two fixed boxes (303) are respectively provided with a plurality of grooves (309); The side surfaces of the two movable plates (304) are respectively fixedly connected to the side surfaces of the two movable plates (307) via a plurality of arc-shaped plates (310); the side surfaces of the plurality of arc-shaped plates (310) are respectively slidably connected to the inner walls of the plurality of trough bodies (308) and the plurality of trough bodies (309); the outer walls of the plurality of arc-shaped plates (310) are respectively fixedly mounted with a plurality of fixing rods (311); the other ends of the plurality of fixing rods (311) are respectively fixedly mounted with a plurality of protective plates (312); and the outer walls of the plurality of protective plates (312) are respectively penetrated with a plurality of through holes; The side surfaces of the soft storage bag (401) are respectively connected to the two movable plates (304) close to the side surfaces in a sliding manner, and a liquid inlet pipe (402) is fixedly installed through the outer wall of the right end of the soft storage bag (401), and the right end of the liquid inlet pipe (402) is fixedly installed through the inner wall of the fixed box (302) and extends to the outside of the fixed box (302), and a one-way valve (403) is fixedly installed at one end of the liquid inlet pipe (402); A plurality of connecting tubes (404) are fixedly installed through the outer wall of the lower end of the soft storage bag (401); the lower ends of the plurality of connecting tubes (404) are fixedly installed through the inner wall of the lower end of the fixing box (302) and extend to the bottom of the fixing box (302); the lower ends of the plurality of connecting tubes (404) are rotatably connected to three-way tubes (405) through connectors (406); and nozzles (407) are fixedly installed at both ends of the plurality of three-way tubes (405); A plurality of moving blocks (408) are fixedly mounted on the bottom surfaces of the two moving plates (304), a plurality of moving grooves (409) are formed through the bottom surface of the fixed box (303), the side surfaces of the plurality of moving blocks (408) are slidably connected to the inner walls of the plurality of moving grooves (409), the bottom surfaces of the plurality of moving blocks (408) are hingedly connected to adjusting plates (410), and the other ends of the plurality of adjusting plates (410) are hingedly connected to connecting rods (411) and rotating rods (414); The outer walls of the plurality of connecting tubes (404) are respectively fixedly mounted with fixing sleeves (412), the bottom surfaces of the plurality of fixing sleeves (412) are respectively provided with two arc-shaped grooves (413), the other ends of the plurality of connecting rods (411) are respectively fixedly connected to the outer walls of the plurality of three-way tubes (405), the upper outer walls of the plurality of rotating rods (414) are respectively slidably connected to the inner walls of the plurality of arc-shaped grooves (413), the upper ends of the plurality of rotating rods (414) are respectively fixedly mounted with circular plates (415), and the bottom surfaces of the plurality of circular plates (415) are respectively slidably connected to the top surfaces of the plurality of fixing sleeves (412).

2. A liquid hydrogen storage tank according to claim 1, characterized in that: A support plate (102) is fixedly mounted on the top surface of the support leg (101); the inner wall of the support plate (102) is fixedly connected to the outer wall of the outer shell (1); the inner wall of the outer shell (1) is fixedly connected to the outer wall of the shell one (202) via a fixing block (201); and a vacuum chamber (203) is formed between the shell one (202) and the outer shell (1).

3. A liquid hydrogen storage tank according to claim 2, characterized in that: An inner liner (205) is fixedly mounted on the inner wall of the shell one (202) via a heat-insulating layer (204); an air intake pipe (206) is arranged on the left side of the outer shell (1); the right end of the air intake pipe (206) is fixedly penetrated through the outer wall of the outer shell (1), the outer wall of the shell one (202), the outer wall of the heat-insulating layer (204) and the outer wall of the inner liner (205) and extends to the interior of the inner liner (205).

Images