Liquid-cooled hydrogen storage tank and hydrogen storage tank anti-collision structure

Abstract

The application belongs to the technical field of hydrogen storage tanks, and particularly discloses a liquid-cooled hydrogen storage tank and a hydrogen storage tank anti-collision structure. The hydrogen storage tank anti-collision structure comprises a tank body, and an external connecting pipe is connected to the opening of the tank body. The tank body tail is connected with a limiting rod. The opening and the tail of the tank body are respectively sleeved with a first baffle and a second baffle. The spring and the spring sheet are matched to absorb the impact force through the elastic force, and the impact force is eliminated in a rolling manner, so that the external components are prevented from impacting the surface of the tank body, and the horizontal tank body is conveniently protected against impact. If the impact direction of the external components is tangent to the outer side of the outer protection frame, the impact force causes the outer protection frame to drive the first baffle and the second baffle to rotate. At this time, the outer arc frame drives the inner ring to rotate on the surface of the tank body by using the buffer component. The impact force of the external components is eliminated in a rotating and buffering manner, and the vertical tank body is conveniently protected against impact.

Description

Technical Field

[0001] This invention belongs to the field of hydrogen storage tank technology, and specifically relates to a liquid-cooled hydrogen storage tank and a collision-resistant structure for the hydrogen storage tank. Background Technology

[0002] Cryogenic liquid hydrogen storage, as the name suggests, involves converting hydrogen gas into a liquid state for storage. This requires cooling to a low temperature of 20K and then storing the liquefied hydrogen in cryogenic storage tanks. However, existing liquid-cooled hydrogen storage tanks lack external protective structures, making them prone to breakage upon impact, potentially leading to safety accidents.

[0003] Therefore, it is necessary to invent a liquid-cooled hydrogen storage tank and a collision-proof structure for the hydrogen storage tank to solve the above problems. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a liquid-cooled hydrogen storage tank and a collision-resistant structure for the hydrogen storage tank, thereby resolving the issues raised in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydrogen storage tank anti-collision structure, comprising a tank body, wherein an external connecting pipe is connected to the opening of the tank body, characterized in that: a limiting rod is connected to the tail of the tank body, and a first baffle and a second baffle are respectively sleeved at the opening and tail of the tank body, both the first baffle and the second baffle being configured as annular, the first baffle being sleeved on the surface of the external connecting pipe, the second baffle being sleeved on the surface of the limiting rod, an outer protective frame and an inner protective frame are provided between the first baffle and the second baffle, the outer protective frame being located outside the inner protective frame, and the inner protective frame including an inner ring, which is sleeved on the outer circumference of the tank body, and multiple rollers are installed on both sides of the inner ring using screws, and the outer circumference of the rollers is in contact with the outer circumference of the tank body, and the inner ring rotates on the outer circumference of the tank body using multiple rollers, and the rollers are made of rubber material.

[0006] Furthermore, the inner protective frame includes multiple buffer components, each including two opposing sliding rods. The surface of the sliding rods is provided with side grooves corresponding to the inner ring. The sliding rods slide on the surface of the inner ring using the side grooves, and the sliding rods do not contact the outer circumference of the tank. A pressure rod is provided between the two sliding rods. The end of the pressure rod is provided with a first rotating plate and a second rotating plate. The first rotating plate and the second rotating plate correspond one-to-one with the two sliding rods. The outer ends of the first rotating plate and the second rotating plate are both sleeved on the end of the pressure rod. Inserted rods are fixed on the sides of the first rotating plate and the second rotating plate, and the inserted rods are correspondingly inserted into the ends of the sliding rods.

[0007] Furthermore, the buffer component includes an arc-shaped plate, the outer concave surface of which fits against the outer circumferential surface of the pressure rod, and multiple springs are provided between the arc-shaped plate and the inner ring. The outer ends of the springs are connected to the inner convex surface of the arc-shaped plate, and the inner ends of the springs are connected to the outer circumferential surface of the inner ring.

[0008] Furthermore, side rods are fixed on both sides of the inner ring, the side rods correspond to the arc-shaped plate, and multiple support rods are fixed on the surface of the side rods. The inner convex surface of the arc-shaped plate is fixed with a sleeve corresponding to the support rod, and the sleeve is fitted onto the surface of the support rod.

[0009] Furthermore, the outer protective frame includes multiple outer arc frames, each corresponding to a multiple buffer component. The outer arc frames are respectively wrapped around the outside of the pressure rod and the slide rod, and adjacent outer arc frames are connected by spring clips.

[0010] Furthermore, movable rods are fixed on both sides of the outer arc frame, and sliding grooves corresponding to the movable rods are provided on the inner sides of the first and second baffles.

[0011] Furthermore, the outer side of the first baffle is provided with a collar that is sleeved on the external connecting pipe, and the collar is made of rubber material. The outer side of the second baffle is provided with a screw sleeve that is spirally sleeved on the surface of the limiting rod, and the inner side of the screw sleeve is in contact with the outer side of the second baffle.

[0012] The present invention also provides a liquid-cooled hydrogen storage tank, including a cylindrical tank body and the aforementioned anti-collision structure for the hydrogen storage tank.

[0013] The technical effects and advantages of this invention are as follows: 1. This invention absorbs impact force through the elasticity of springs and sheet metal, and eliminates the impact force through rolling, preventing external parts from hitting the tank surface and facilitating collision protection for horizontal tanks; if the impact direction of an external part is tangential to the outer side of the outer protective frame, the impact force causes the outer protective frame to rotate the first baffle and the second baffle. At this time, the outer arc frame uses a buffer component to drive the inner ring to rotate on the tank surface, eliminating the impact force of the external part through rotation and buffering, thus facilitating collision protection for vertical tanks.

[0014] 2. When the spring force absorbs the impact force of external components, the impact force causes the arc plate to move closer to the inner ring. The inner ring uses multiple support rods on the side rod to limit the sleeve, preventing the arc plate from shifting during movement. Both ends of the pressure rod are corresponding to the ends of the slide rod using the first rotating plate and the second rotating plate. The first rotating plate and the second rotating plate limit the pressure rod, and the support rod and the sleeve cooperate to limit the pressure rod on the outside of the arc plate, preventing the pressure rod from shifting under the impact of external components. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of the anti-collision structure of the hydrogen storage tank according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the inner protective frame on the outside of the tank body according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the overall buffer component on the inner ring of an embodiment of the present invention; Figure 4 This is a schematic diagram of some components of the buffer component according to an embodiment of the present invention; Figure 5 This is an overall schematic diagram of the outer protective frame according to an embodiment of the present invention; In the diagram: 1. Tank body; 2. External connecting pipe; 3. Limiting rod; 4. First baffle; 5. Second baffle; 6. Inner ring; 7. Roller; 8. Sliding rod; 9. Pressure rod; 10. First rotating plate; 11. Second rotating plate; 12. Insert rod; 13. Arc plate; 14. Spring; 15. Side rod; 16. Support rod; 17. Sleeve; 18. Outer arc frame; 19. Spring piece; 20. Moving rod; 21. Slide groove; 22. Collar; 23. Screw sleeve. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0017] This invention provides a collision protection structure for a hydrogen storage tank, such as... Figure 1 and Figure 2As shown, the device includes a tank body 1. An external connecting pipe 2 is connected to the opening of the tank body 1, and a limiting rod 3 is connected to the tail of the tank body 1. A first baffle 4 and a second baffle 5 are respectively fitted to the opening and tail of the tank body 1. Both the first baffle 4 and the second baffle 5 are circular. The first baffle 4 is fitted onto the surface of the external connecting pipe 2, and the second baffle 5 is fitted onto the surface of the limiting rod 3. An outer protective frame and an inner protective frame are provided between the first baffle 4 and the second baffle 5. The outer protective frame is located outside the inner protective frame, and the inner protective frame includes an inner ring 6, which is fitted onto the outer circumference of the tank body 1. Multiple rollers 7 are installed on both sides of the inner ring 6 using screws, and the outer circumference of the rollers 7 is in contact with the outer circumference of the tank body 1. The inner ring 6 rotates on the outer circumference of the tank body 1 using the multiple rollers 7, and the rollers 7 are made of rubber material. The outer side of the first baffle 4 is provided with a collar 22 that is sleeved on the external connecting pipe 2, and the collar 22 is made of rubber material. The outer side of the second baffle 5 is provided with a screw sleeve 23 that is spirally sleeved on the surface of the limiting rod 3, and the inner side of the screw sleeve 23 is in contact with the outer side of the second baffle 5. After the first baffle 4 is fitted onto the outer circumference of the external connecting pipe 2, the external connecting pipe 2 is spirally installed at the opening of the tank 1. At this time, the first baffle 4 is positioned at the opening of the tank 1. Then, the second baffle 5 is fitted onto the surface of the limiting rod 3 at the tail of the tank 1. The second baffle 5 is installed at the tail of the tank 1 by the spiral engagement of the screw sleeve 23 and the limiting rod 3. The annular first baffle 4 and the second baffle 5 make it easy for the tank 1 to be in a horizontal position. When an external component impacts the surface of the outer protective frame, the impact force causes the outer protective frame to drive the first baffle 4 and the second baffle 5 to roll. The rolling of the first baffle 4 and the second baffle 5 causes the tank 1 itself to roll. The outer and inner protective frames absorb the impact force and eliminate the impact force by rolling, preventing external components from hitting the surface of the tank 1, thus facilitating the anti-collision protection of the horizontal tank 1.

[0018] The tank 1 is vertically installed on the ground using the limiting rod 3. At this time, the first baffle 4 is horizontally positioned on top of the second baffle 5. The engagement of the screw sleeve 23 with the limiting rod 3 facilitates the second baffle 5 to support the first baffle 4 using the outer protective frame. When an external component impacts the surface of the outer protective frame, the outer and inner protective frames work together to absorb the impact force, preventing the impact force from acting directly on the surface of the tank 1. If the impact direction of the external component is tangent to the outer side of the outer protective frame, the impact force causes the outer protective frame to rotate, driving the first baffle 4 and the second baffle 5 to rotate. The rotating outer protective frame drives the inner protective frame to rotate on the surface of the tank 1. The impact force of the external component is eliminated through rotation and buffering, facilitating the anti-collision protection of the upright tank 1.

[0019] exist Figures 2 to 4In the inner protective frame, there are multiple buffer components. Each buffer component includes two opposing sliding rods 8. The surface of the sliding rod 8 is provided with a side groove corresponding to the inner ring 6. The sliding rod 8 slides on the surface of the inner ring 6 using the side groove, and the sliding rod 8 does not contact the outer circumference of the tank body 1. A pressure rod 9 is provided between the two sliding rods 8. The end of the pressure rod 9 is provided with a first rotating plate 10 and a second rotating plate 11. The first rotating plate 10 and the second rotating plate 11 correspond one-to-one with the two sliding rods 8. The outer ends of the first rotating plate 10 and the second rotating plate 11 are both sleeved on the end of the pressure rod 9. Insert rods 12 are fixed on the sides of the first rotating plate 10 and the second rotating plate 11, and the insert rods 12 are correspondingly inserted into the ends of the sliding rods 8. When the impact force of the external component causes the pressure rod 9 to approach the inner ring 6, the moving pressure rod 9 drives the outer ends of the first rotating plate 10 and the second rotating plate 11 to approach the inner ring 6. Since the bottom ends of the first rotating plate 10 and the second rotating plate 11 are respectively inserted into the ends of the two sliding rods 8, and the sliding rods 8 are slidably sleeved on the surface of the inner ring 6 by means of the side groove, the moving pressure rod 9 causes the first rotating plate 10 and the second rotating plate 11 to rotate. Through the rotation of the first rotating plate 10 and the second rotating plate 11, the two sliding rods 8 are separated from each other.

[0020] The buffer component includes an arc-shaped plate 13, the outer concave surface of which fits against the outer circumferential surface of the pressure rod 9. Multiple springs 14 are disposed between the arc-shaped plate 13 and the inner ring 6. The outer ends of the springs 14 are connected to the inner convex surface of the arc-shaped plate 13, and the inner ends of the springs 14 are connected to the outer circumferential surface of the inner ring 6. When the pressure rod 9 approaches the inner ring 6, the moving pressure rod 9 causes the arc-shaped plate 13 to move closer to the inner ring 6. The moving arc-shaped plate 13 and the inner ring 6 cooperate to compress the multiple springs 14. The elasticity of the springs 14 absorbs the impact force of external components on the pressure rod 9. The rotation of the first rotating plate 10 and the second rotating plate 11 facilitates the sliding of the slide rod 8 to disperse the impact force, ensuring the anti-collision effect of the tank body 1.

[0021] exist Figure 3 and Figure 4 In this design, side rods 15 are fixed to both sides of the inner ring 6, corresponding to the arc-shaped plate 13. Multiple support rods 16 are fixed to the surface of the side rods 15. A retaining sleeve 17 corresponding to the support rod 16 is fixed to the inner convex surface of the arc-shaped plate 13, and the retaining sleeve 17 is fitted onto the surface of the support rod 16. When the pressure rod 9 approaches the inner ring 6, the moving pressure rod 9 drives the arc-shaped plate 13 to move synchronously. At this time, the arc-shaped plate 13 drives the retaining sleeve 17 closer to the support rod 16 until the pressure rod 9 can no longer approach the inner ring 6. The inner ring 6 then uses the multiple support rods 16 on the side rods 15 to limit the retaining sleeve 17, preventing the arc-shaped plate 13 from shifting during movement. Both ends of the pressure rod 9 are corresponding to the ends of the sliding rod 8 using a first rotating plate 10 and a second rotating plate 11. The first rotating plate 10 and the second rotating plate 11 limit the pressure rod 9, and the support rod 16 and the retaining sleeve 17 cooperate to limit the pressure rod 9 outside the arc-shaped plate 13, preventing the pressure rod 9 from shifting due to impacts from external components.

[0022] exist Figure 1and Figure 5 In this structure, the outer protective frame includes multiple outer arc frames 18, each corresponding to a multiple buffer component. Each outer arc frame 18 is fitted over the pressure rod 9 and the sliding rod 8, with adjacent outer arc frames 18 connected by a spring piece 19. An outer arc frame 18 is engaged with the outside of the pressure rod 9. When an external component impacts the outside of the outer arc frame 18, the outer arc frame 18 moves closer to the inner ring 6 under the impact force. The moving outer arc frame 18 drives the pressure rod 9 closer to the inner ring 6. Movable rods 20 are fixed to both sides of the outer arc frame 18. The inner sides of the first baffle 4 and the second baffle 5 are each provided with a groove 21 corresponding to the movable rod 20. When the impact force causes the outer arc frame 18 to approach the inner ring 6, the moving outer arc frame 18 slides within the groove 21 using the movable rod 20 at its end. During movement, the outer arc frame 18 pulls on the spring piece 19, and the spring force of the spring 14 and the spring piece 19 work together to absorb the impact force of the external component.

[0023] The present invention also provides a liquid-cooled hydrogen storage tank, including a cylindrical tank body 1 and the aforementioned hydrogen storage tank anti-collision structure.

[0024] Working principle of this invention: Reference Figures 1 to 5 As shown, after the first baffle 4 is sleeved on the outer circumference of the external connecting pipe 2, the external connecting pipe 2 is spirally installed at the opening of the tank body 1. At this time, the first baffle 4 is positioned at the opening of the tank body 1. Then, the second baffle 5 is sleeved on the surface of the limiting rod 3 at the tail of the tank body 1. The second baffle 5 is installed at the tail of the tank body 1 by using the spiral engagement of the screw sleeve 23 and the limiting rod 3.

[0025] When the impact force of external components causes the pressure rod 9 to approach the inner ring 6, the moving pressure rod 9 drives the outer ends of the first rotating plate 10 and the second rotating plate 11 to approach the inner ring 6. Since the bottom ends of the first rotating plate 10 and the second rotating plate 11 are respectively inserted into the ends of the two sliding rods 8, and the sliding rods 8 are slidably sleeved on the surface of the inner ring 6 using side grooves, the moving pressure rod 9 causes the first rotating plate 10 and the second rotating plate 11 to rotate. Through the rotation of the first rotating plate 10 and the second rotating plate 11, the two sliding rods 8 are separated from each other. When the pressure rod 9 approaches the inner ring 6, the moving pressure rod 9 drives the arc plate 13 to approach the inner ring 6. The moving arc plate 13 cooperates with the inner ring 6 to compress multiple springs 14. The elastic force of the springs 14 absorbs the impact force of external components on the pressure rod 9. The rotation of the first rotating plate 10 and the second rotating plate 11 facilitates the sliding of the sliding rods 8 to disperse the impact force, ensuring the anti-collision effect of the tank body 1.

[0026] When an external component impacts the outer arc frame 18, the outer arc frame 18 moves closer to the inner ring 6 under the impact force. The moving outer arc frame 18 drives the pressure rod 9 closer to the inner ring 6. Movable rods 20 are fixed to both sides of the outer arc frame 18. The inner sides of the first baffle 4 and the second baffle 5 are each provided with a groove 21 corresponding to the movable rod 20. When the impact force causes the outer arc frame 18 to approach the inner ring 6, the moving outer arc frame 18 slides inside the groove 21 using the movable rod 20 at its end. During its movement, the outer arc frame 18 pulls on the spring sheet 19, and the spring force of the spring 14 and the spring sheet 19 work together to absorb the impact force of the external component.

[0027] The annular first baffle 4 and second baffle 5 facilitate the horizontal position of the tank 1. When an external component impacts the surface of the outer protective frame, the impact force causes the outer protective frame to roll the first baffle 4 and second baffle 5. The rolling of the first baffle 4 and second baffle 5 causes the tank 1 itself to roll. The elastic force of the spring 14 and the spring sheet 19 is used to absorb the impact force and eliminate the impact force by rolling, thus preventing external components from hitting the surface of the tank 1 and facilitating the anti-collision protection of the horizontal tank 1.

[0028] The tank 1 is vertically installed on the ground using a limiting rod 3. At this time, the first baffle 4 is horizontally positioned above the second baffle 5. The engagement of the screw sleeve 23 with the limiting rod 3 facilitates the second baffle 5's support of the first baffle 4 using the outer protective frame. When an external component impacts the surface of the outer protective frame, the spring 14 and the spring plate 19 work together to absorb the impact force, preventing the impact force from acting directly on the surface of the tank 1. If the impact direction of the external component is tangential to the outer side of the outer protective frame, the impact force causes the outer protective frame to rotate, driving the first baffle 4 and the second baffle 5. At this time, the outer arc frame 18 uses a buffer component to drive the inner ring 6 to rotate on the surface of the tank 1. The impact force of the external component is eliminated through rotation and buffering, facilitating anti-collision protection for the upright tank 1.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A collision protection structure for a hydrogen storage tank, comprising a tank body (1), wherein an external connecting pipe (2) is connected to the opening of the tank body (1), characterized in that: The tail of the tank (1) is connected to a limiting rod (3). The opening and the tail of the tank (1) are respectively fitted with a first baffle (4) and a second baffle (5). The first baffle (4) and the second baffle (5) are both ring-shaped. The first baffle (4) is fitted onto the surface of the external connecting pipe (2), and the second baffle (5) is fitted onto the surface of the limiting rod (3). An outer protective frame and an inner protective frame are provided between the first baffle (4) and the second baffle (5). The outer protective frame is located outside the inner protective frame, and the inner protective frame includes an inner ring (6). The inner ring (6) is fitted onto the outer circumference of the tank (1). Multiple rollers (7) are installed on both sides of the inner ring (6) using screws. The outer circumference of the rollers (7) is in contact with the outer circumference of the tank (1). The inner ring (6) rotates on the outer circumference of the tank (1) using multiple rollers (7). The rollers (7) are made of rubber material. The inner protective frame includes multiple buffer components, each including two opposing sliding rods (8). The surface of the sliding rods (8) is provided with side grooves corresponding to the inner ring (6). The sliding rods (8) slide on the surface of the inner ring (6) using the side grooves, and the sliding rods (8) do not contact the outer circumference of the tank body (1). A pressure rod (9) is provided between the two sliding rods (8). The end of the pressure rod (9) is provided with a first rotating plate (10) and a second rotating plate (11). The first rotating plate (10) and the second rotating plate (11) correspond one-to-one with the two sliding rods (8). The outer ends of the first rotating plate (10) and the second rotating plate (11) are both sleeved on the end of the pressure rod (9). The sides of the first rotating plate (10) and the second rotating plate (11) are both fixed with insert rods (12), and the insert rods (12) are correspondingly inserted into the ends of the sliding rods (8). The buffer component includes an arc plate (13), the outer concave surface of the arc plate (13) is in contact with the outer circumferential surface of the pressure rod (9), and a plurality of springs (14) are provided between the arc plate (13) and the inner ring (6). The outer end of the spring (14) is connected to the inner convex surface of the arc plate (13), and the inner end of the spring (14) is connected to the outer circumferential surface of the inner ring (6). The outer protective frame includes multiple outer arc frames (18), each of which corresponds to a multiple buffer component. The outer arc frames (18) are respectively wrapped around the outside of the pressure rod (9) and the slide rod (8), and adjacent outer arc frames (18) are connected by spring pieces (19).

2. The anti-collision structure for a hydrogen storage tank according to claim 1, characterized in that: Both sides of the inner ring (6) are fixed with side rods (15), which correspond to the arc plate (13). Multiple support rods (16) are fixed on the surface of the side rods (15). The inner convex surface of the arc plate (13) is fixed with a sleeve (17) corresponding to the support rod (16), and the sleeve (17) is sleeved on the surface of the support rod (16).

3. The anti-collision structure for a hydrogen storage tank according to claim 2, characterized in that: The outer arc frame (18) has a movable rod (20) fixed on both sides, and the inner sides of the first baffle (4) and the second baffle (5) are provided with a sliding groove (21) corresponding to the movable rod (20).

4. The anti-collision structure for a hydrogen storage tank according to claim 3, characterized in that: The outer side of the first baffle (4) is provided with a collar (22) that is sleeved on the external connecting pipe (2), and the collar (22) is made of rubber material. The outer side of the second baffle (5) is provided with a screw sleeve (23) that is spirally sleeved on the surface of the limiting rod (3), and the inner side of the screw sleeve (23) is in contact with the outer side of the second baffle (5).

5. A liquid-cooled hydrogen storage tank, characterized in that: It includes a cylindrical tank (1) and the anti-collision structure for the hydrogen storage tank as described in claim 4.

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