Double-layer liquid hydrogen storage tank

Abstract

The utility model discloses a double-layer liquid hydrogen storage tank, and relates to the field of liquid hydrogen storage tanks, the double-layer liquid hydrogen storage tank comprises a double-layer hydrogen storage tank body, two symmetrical auxiliary moving mechanisms are arranged below the double-layer hydrogen storage tank body, and each auxiliary moving mechanism comprises a supporting frame fixedly connected to the outer surface of the double-layer hydrogen storage tank body; the device further comprises two symmetrical damping and buffering mechanisms, each damping and buffering mechanism comprises a first damping frame, the inner wall of each first damping frame is connected with a second damping frame in a sliding mode, and the inner wall of each second damping frame is connected with a first damping block in a sliding mode. According to the double-layer liquid hydrogen storage tank, when a vehicle transports the double-layer hydrogen storage tank body, buffering and damping can be conducted on the double-layer hydrogen storage tank body through the damping and buffering mechanism, the situation that the double-layer hydrogen storage tank body is subjected to large shaking and impact when the vehicle bumps during transportation is avoided, and the safety of the double-layer hydrogen storage tank body during transportation is guaranteed; meanwhile, the service life of the double-layer hydrogen storage tank body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid hydrogen storage tanks, in particular to a double-layer liquid hydrogen storage tank. Background Art

[0002] Liquid hydrogen storage tank refers to liquid hydrogen storage tank, which is a low-temperature container for storing liquid hydrogen. It is generally composed of an inner tank, an outer shell, an insulation structure and mechanical components for connection, measuring instruments, safety facilities, liquid and gas injection and discharge piping, accessories, etc. Hydrogen storage tanks are generally divided into polyethylene storage tanks, polypropylene storage tanks, fiberglass storage tanks, ceramic storage tanks, rubber storage tanks, stainless steel storage tanks, etc. according to different materials.

[0003] Liquid hydrogen storage tanks, because liquid hydrogen is easy to volatilize, if the volatilized hydrogen is not cleaned up, it is easy to cause hydrogen static electricity to explode, which is extremely dangerous, so a double-layer storage tank is needed. In addition, the existing liquid hydrogen storage tanks will produce certain vibrations during transportation due to the bumps of the vehicle. At the same time, there is no good shock-absorbing device at the bottom of the liquid hydrogen storage tank, which causes the liquid hydrogen storage tank at the top of the vehicle to be shaken and impacted, making it not very safe to use. To this end, we provide a double-layer liquid hydrogen storage tank to solve the above problems. Summary of the invention

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a double-layer liquid hydrogen storage tank, which solves the problem that the liquid hydrogen storage tank may be shaken and impacted during transportation, resulting in unsafe use.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a double-layer liquid hydrogen storage tank, comprising a double-layer hydrogen storage tank body, two symmetrical auxiliary moving mechanisms are arranged below the double-layer hydrogen storage tank body, and the auxiliary moving mechanism includes a support frame fixedly connected to the outer surface of the double-layer hydrogen storage tank body; it also includes two symmetrical shock-absorbing and buffering mechanisms, and the shock-absorbing and buffering mechanisms include a first damping frame, the inner wall of the first damping frame is slidably connected to the second damping frame, the inner wall of the second damping frame is slidably connected to the first damping block, the upper surface of the first damping block is fixedly connected to the fixing frame, the inner bottom wall of the first damping frame is fixedly connected to four first dampers, the top ends of the four first dampers are fixedly connected to the bottom surface of the second damping frame, the inner wall of the second damping frame is fixedly connected to two symmetrical second dampers, and the ends of the two second dampers close to each other are fixedly connected to the outer surface of the first damping block.

[0006] Furthermore, the inner wall of the support frame is rotatably connected to two symmetrical rotating shafts, the outer surfaces of the two rotating shafts are fixedly connected to supporting legs, and the inner walls of the two supporting legs are rotatably connected to moving wheels.

[0007] By adopting the above technical solution, the moving wheels can be completely retracted into the support frame, and the moving wheels can be extended from the support frame.

[0008] Furthermore, the inner top wall of the support frame is hinged with a hydraulic rod through a pin, and the bottom ends of the two hydraulic rods are hinged to the outer surfaces of the two support legs through the pins respectively.

[0009] By adopting the above technical solution, four hydraulic rods share the same controller, and the bottom ends of the supporting legs and the moving wheels can be pushed out to the bottom of the supporting frame by extending the hydraulic rods.

[0010] Furthermore, the inner wall of the first damping frame is slidably connected to two symmetrical second damping blocks, the upper surfaces of the two second damping blocks are hinged with connecting rods through pins, the bottom surface of the second damping frame is fixedly connected with a hinge seat, and the ends of the two connecting rods away from the second damping blocks are hinged to the inner wall of the hinge seat through pins.

[0011] By adopting the above technical solution, there is a large damping between the second damping block and the inner wall of the first damping frame, thereby buffering the up and down movement of the second damping frame.

[0012] Furthermore, three return springs are fixedly connected to the side surfaces of the two second damping blocks that are away from each other, and one end of each return spring that is away from the second damping block is fixedly connected to the inner wall of the first damping frame.

[0013] By adopting the above technical solution, the reset spring can reset the second damping block after the second damping block moves.

[0014] Furthermore, the fixing frame is matched with the supporting frame, the inner wall of the fixing frame is slidably connected with a limiting block, and the limiting block is matched with the supporting frame.

[0015] By adopting the above technical solution, a limiting groove matched with the limiting block is opened on the outer surface of the supporting frame, and the supporting frame can be fixed in the fixing frame by the limiting block passing through the fixing frame and inserted into the limiting groove of the supporting frame.

[0016] Furthermore, a mounting plate is fixedly connected to the outer surface of the limit block, and four mounting bolts are threadedly connected to the inner wall of the mounting plate, and the four mounting bolts are all adapted to the fixing frame.

[0017] By adopting the above technical solution, the mounting plate and the limit block can be fixed by screwing the mounting bolts into the mounting plate and the fixing frame at the same time.

[0018] Furthermore, the inner wall of the double-layer hydrogen storage tank body is fixedly connected to a plurality of annular partition plates arranged at equal distances, and the outer surface of the double-layer hydrogen storage tank body is fixedly connected to a liquid hydrogen channel.

[0019] By adopting the above technical solution, liquid hydrogen can be added into the interior of the double-layer hydrogen storage tank or drawn out from the double-layer hydrogen storage tank through the liquid hydrogen channel.

[0020] Furthermore, a fixed bottom plate is arranged above the double-layer hydrogen storage tank body, and the first damping frame is fixedly connected to the upper surface of the fixed bottom plate.

[0021] By adopting the above technical solution, reserved holes are provided on the fixed bottom plate, and the fixed bottom plate can be installed in the transport vehicle through the fixed bottom plate and screws.

[0022] Compared with the prior art, this double-layer liquid hydrogen storage tank has the following beneficial effects:

[0023] 1. The utility model is provided with a double-layer hydrogen storage tank body, an auxiliary moving mechanism and a shock-absorbing and buffering mechanism. When a vehicle transports the double-layer hydrogen storage tank body, the shock-absorbing and buffering mechanism can buffer and reduce shocks on the double-layer hydrogen storage tank body, thereby preventing the double-layer hydrogen storage tank body from being subjected to large shaking and impacts during bumpy transportation by the vehicle, ensuring the safety of the double-layer hydrogen storage tank body during transportation, and at the same time increasing the service life of the double-layer hydrogen storage tank body.

[0024] 2. The utility model is provided with an auxiliary moving mechanism. After the vehicle transports the double-layer hydrogen storage tank, the support frame is taken out from the fixed frame and placed on the ground. The four hydraulic rods are controlled to extend synchronously, thereby pushing the support legs to rotate along the rotating shaft and moving the moving wheels to the bottom of the support frame. At this time, the moving wheels are in contact with the ground, and the double-layer hydrogen storage tank can be artificially moved by the moving wheels, so that the double-layer hydrogen storage tank is convenient to move to the desired position.

[0025] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the double-layer hydrogen storage tank of the utility model;

[0028] Figure 3 It is a schematic diagram of the split structure of the support frame and the fixing frame of the utility model;

[0029] Figure 4 It is a three-dimensional structural schematic diagram of a double-layer hydrogen storage tank and a support frame of the utility model;

[0030] Figure 5This is a schematic diagram of the internal structure of the support frame of the utility model;

[0031] Figure 6 It is a schematic diagram of the split structure of the fixing frame, the limiting block and the mounting bolts of the utility model;

[0032] Figure 7 This is a schematic diagram of the internal structure of the first damping frame of the utility model;

[0033] Figure 8 It is a schematic diagram of the internal structure of the second damping frame of the utility model.

[0034] In the figure:

[0035] 1. Double-layer hydrogen storage tank;

[0036] 2. Auxiliary moving mechanism; 21. Support frame; 22. Rotating shaft; 23. Support leg; 24. Moving wheel; 25. Hydraulic rod;

[0037] 3. shock absorbing and buffering mechanism; 31. first damping frame; 32. second damping frame; 33. first damping block; 34. fixing frame; 35. second damping block; 36. connecting rod; 37. hinge seat; 38. first damper; 39. second damper; 310. return spring; 311. limit block; 312. mounting plate; 313. mounting bolt;

[0038] 4. Fixed bottom plate; 5. Annular partition plate; 6. Liquid hydrogen channel. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] See also Figure 1-8The utility model provides a technical solution: a double-layer liquid hydrogen storage tank, comprising a double-layer hydrogen storage tank body 1, the double-layer hydrogen storage tank body 1 is provided with a hollow layer, and the hollow layer is provided with a toluene channel, toluene is rushed into the hollow layer through the toluene channel, toluene will react with hydrogen to form methylcyclohexane, toluene can be pumped out after use, and after hydrogen is desorbed, it is reloaded and reused, so that hydrogen volatilized from liquid hydrogen can be cleaned up, and hydrogen can be prevented from deflagration due to static electricity, and the safety is relatively high. Two symmetrical auxiliary moving mechanisms 2 are arranged below the double-layer hydrogen storage tank body 1, and the auxiliary moving mechanisms 2 include a support frame 21 fixedly connected to the outer surface of the double-layer hydrogen storage tank body 1, and the inner wall of the support frame 21 is rotatably connected to two symmetrical rotating shafts 22, the outer surfaces of the two rotating shafts 22 are fixedly connected to support legs 23, and the inner walls of the two support legs 23 are rotatably connected to moving wheels 24, and the moving wheels 24 can be completely retracted into the support frame 21, and the moving wheels 24 can extend from the support frame 21.

[0041] The inner top wall of the support frame 21 is hinged with a hydraulic rod 25 through a pin shaft, and the bottom ends of the two hydraulic rods 25 are respectively hinged to the outer surfaces of the two support legs 23 through pin shafts. The four hydraulic rods 25 share the same controller. By extending the hydraulic rods 25, the bottom ends of the support legs 23 and the moving wheels 24 can be pushed out to the bottom of the support frame 21.

[0042] It also includes two symmetrical shock-absorbing and buffering mechanisms 3, which include a first damping frame 31, the inner wall of the first damping frame 31 is slidably connected to the second damping frame 32, the inner wall of the second damping frame 32 is slidably connected to the first damping block 33, the upper surface of the first damping block 33 is fixedly connected to a fixing frame 34, the inner bottom wall of the first damping frame 31 is fixedly connected to four first dampers 38, the top ends of the four first dampers 38 are fixedly connected to the bottom surface of the second damping frame 32, the inner wall of the second damping frame 32 is fixedly connected to two symmetrical second dampers 39, the ends of the two second dampers 39 close to each other are fixedly connected to the outer surface of the first damping block 33, and the second damper 39 can buffer the horizontal movement of the first damping block 33.

[0043] The inner wall of the first damping frame 31 is slidably connected to two symmetrical second damping blocks 35, the upper surfaces of the two second damping blocks 35 are hinged with connecting rods 36 through pins, and the bottom surface of the second damping frame 32 is fixedly connected with a hinge seat 37, and the ends of the two connecting rods 36 away from the second damping blocks 35 are hinged to the inner wall of the hinge seat 37 through pins. There is a large damping between the second damping blocks 35 and the inner wall of the first damping frame 31, thereby buffering the up and down movement of the second damping frame 32.

[0044] Three return springs 310 are fixedly connected to the side surfaces of the two second damping blocks 35 that are away from each other, and one end of each return spring 310 away from the second damping block 35 is fixedly connected to the inner wall of the first damping frame 31. The return spring 310 can reset the second damping block 35 after the second damping block 35 moves.

[0045] The fixing frame 34 is matched with the supporting frame 21, and the inner wall of the fixing frame 34 is slidably connected to the limiting block 311, and the limiting block 311 is matched with the supporting frame 21. The outer surface of the supporting frame 21 is provided with a limiting groove matched with the limiting block 311. The limiting block 311 passes through the fixing frame 34 and is inserted into the limiting groove of the supporting frame 21, so that the supporting frame 21 can be fixed in the fixing frame 34.

[0046] The outer surface of the limit block 311 is fixedly connected to a mounting plate 312, and the inner wall of the mounting plate 312 is threadedly connected to four mounting bolts 313, and the four mounting bolts 313 are all compatible with the fixing frame 34. By screwing the mounting bolts 313 into the mounting plate 312 and the fixing frame 34 at the same time, the mounting plate 312 and the limit block 311 can be fixed.

[0047] The inner wall of the double-layer hydrogen storage tank body 1 is fixedly connected with a plurality of annular partition plates 5 arranged at equal distances, and the outer surface of the double-layer hydrogen storage tank body 1 is fixedly connected with a liquid hydrogen channel 6, through which liquid hydrogen can be added to the interior of the double-layer hydrogen storage tank body 1 or extracted from the double-layer hydrogen storage tank body 1.

[0048] A fixed bottom plate 4 is arranged above the double-layer hydrogen storage tank body 1, and the first damping frame 31 is fixedly connected to the upper surface of the fixed bottom plate 4. A reserved hole is arranged on the fixed bottom plate 4, and the fixed bottom plate 4 can be installed in the transport vehicle through the fixed bottom plate 4 and screws.

[0049] Working principle: The fixed base plate 4 is installed on the transport vehicle and the support frame 21 is fixed in the fixed frame 34. During the transportation of the vehicle, when the double-layer hydrogen storage tank body 1 is impacted in the horizontal direction, the first damping block 33 moves in the second damping frame 32 and receives support and buffering from the two second dampers 39. At the same time, the damping between the first damping block 33 and the second damping frame 32 is relatively large, which plays a buffering role. When the double-layer hydrogen storage tank body 1 is impacted in the vertical direction, the first damper 38 will support and buffer the second damping frame 32, and at the same time move up and down through the hinge seat 37, which will pass The second damping block 35 is driven to move in the horizontal direction by the connecting rod 36. There is a large damping between the second damping block 35 and the first damping frame 31. At the same time, the impact in the vertical direction is transmitted to the impact force in the horizontal direction through the connecting rod 36, thereby reducing the force on the first damper 38. At the same time, the reset spring 310 will reset the moved second damping block 35. When the vehicle transports the double-layer hydrogen storage tank body 1, the device can buffer and dampen the double-layer hydrogen storage tank body 1 through the shock-absorbing and buffering mechanism 3, thereby ensuring the safety of the double-layer hydrogen storage tank body 1 during transportation.

[0050] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A double-layer liquid hydrogen storage tank, characterized in that: include: A double-layer hydrogen storage tank body (1), wherein two symmetrical auxiliary movement mechanisms (2) are arranged below the double-layer hydrogen storage tank body (1), and the auxiliary movement mechanism (2) comprises a support frame (21) fixedly connected to the outer surface of the double-layer hydrogen storage tank body (1); Two symmetrical shock absorbing and buffering mechanisms (3), the shock absorbing and buffering mechanisms (3) comprising a first damping frame (31), the inner wall of the first damping frame (31) being slidably connected to a second damping frame (32), the inner wall of the second damping frame (32) being slidably connected to a first damping block (33), the upper surface of the first damping block (33) being fixedly connected to a fixing frame (34), the inner bottom wall of the first damping frame (31) being fixedly connected to four first dampers (38), the top ends of the four first dampers (38) being fixedly connected to the bottom surface of the second damping frame (32), the inner wall of the second damping frame (32) being fixedly connected to two symmetrical second dampers (39), the ends of the two second dampers (39) being close to each other being fixedly connected to the outer surface of the first damping block (33); The inner wall of the first damping frame (31) is slidably connected to two symmetrical second damping blocks (35); the upper surfaces of the two second damping blocks (35) are hinged to connecting rods (36) via pins; the bottom surface of the second damping frame (32) is fixedly connected to a hinge seat (37); the ends of the two connecting rods (36) away from the second damping blocks (35) are hinged to the inner wall of the hinge seat (37) via pins.

2. The double-layer liquid hydrogen storage tank according to claim 1 is characterized in that: The inner wall of the support frame (21) is rotatably connected to two symmetrical rotating shafts (22), the outer surfaces of the two rotating shafts (22) are fixedly connected to supporting legs (23), and the inner walls of the two supporting legs (23) are rotatably connected to moving wheels (24).

3. The double-layer liquid hydrogen storage tank according to claim 2 is characterized in that: The inner top wall of the support frame (21) is hinged with a hydraulic rod (25) via a pin, and the bottom ends of the two hydraulic rods (25) are hinged to the outer surfaces of the two support legs (23) via pins.

4. The double-layer liquid hydrogen storage tank according to claim 1 is characterized in that: Three return springs (310) are fixedly connected to the side surfaces of the two second damping blocks (35) that are away from each other, and one end of each return spring (310) that is away from the second damping block (35) is fixedly connected to the inner wall of the first damping frame (31).

5. The double-layer liquid hydrogen storage tank according to claim 1 is characterized in that: The fixing frame (34) is matched with the supporting frame (21); the inner wall of the fixing frame (34) is slidably connected to a limiting block (311); and the limiting block (311) is matched with the supporting frame (21).

6. The double-layer liquid hydrogen storage tank according to claim 5 is characterized in that: The outer surface of the limiting block (311) is fixedly connected to a mounting plate (312), and the inner wall of the mounting plate (312) is threadedly connected to four mounting bolts (313), and the four mounting bolts (313) are all compatible with the fixing frame (34).

7. The double-layer liquid hydrogen storage tank according to claim 1 is characterized in that: The inner wall of the double-layer hydrogen storage tank body (1) is fixedly connected to a plurality of annular partition plates (5) arranged at equal distances, and the outer surface of the double-layer hydrogen storage tank body (1) is fixedly connected to a liquid hydrogen channel (6).

8. The double-layer liquid hydrogen storage tank according to claim 1 is characterized in that: A fixed bottom plate (4) is provided above the double-layer hydrogen storage tank body (1), and the first damping frame (31) is fixedly connected to the upper surface of the fixed bottom plate (4).

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