Solid hydrogen storage tank and integrated hydrogen storage device

Abstract

The invention belongs to the technical field of hydrogen storage devices, and discloses a solid hydrogen storage tank and an integrated hydrogen storage device.The solid hydrogen storage tank comprises a shell, a valve is fixedly installed at one end of the shell, a cooling substance feeding valve is fixedly installed at the other end of the shell, and a heat exchange pipe is installed at one end of the cooling substance feeding valve; an embedded heat exchanger is mounted at one end of the heat exchange tube, and a solid hydrogen storage material is mounted in the embedded heat exchanger; the solid hydrogen storage material can release a close packing state among particles in the solid hydrogen storage material to form some gaps, and the gaps can increase the porosity of the storage material, so that the adsorption capacity of the material to hydrogen can be improved after extrusion, and vibration causes the pores in the solid hydrogen storage material to generate a pre-saturation effect, that is, part of the pores are filled in advance, so that the hydrogen storage effect is improved. Therefore, the hydrogen storage characteristic of the solid hydrogen storage material is improved without obvious damage, at the moment, the hydrogen adsorption speed of the solid hydrogen storage material is increased through the two modes, and the time needed by adsorption of the solid hydrogen storage material is saved.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydrogen storage devices, and in particular relates to a solid-state hydrogen storage tank and an integrated hydrogen storage device. Background Art

[0002] Hydrogen energy is a clean, efficient and renewable secondary energy source. However, the storage and transportation of hydrogen has always been a bottleneck restricting the large-scale application of hydrogen energy. There is still a lot of room for exploration in the safety and economy of hydrogen storage. The current hydrogen storage methods mainly include gaseous hydrogen storage, liquid hydrogen storage and solid hydrogen storage. Traditional gaseous hydrogen storage and liquid hydrogen storage methods have the risk of explosion due to excessive pressure or require extremely harsh storage conditions, resulting in limited application scope and high cost. Solid-state hydrogen storage has the advantages of good safety, high volume hydrogen storage density and high hydrogen desorption purity. It has broad market prospects in specific application scenarios and brings new opportunities for the promotion and application of hydrogen energy. During the solid-state hydrogen storage process, thermal effects of hydrogen absorption and desorption will occur, affecting the platform pressure of the hydrogen storage alloy, making it difficult for the hydrogen charging and desorption process to be fully sustained.

[0003] Since the adsorption efficiency of hydrogen by solid hydrogen storage materials in the prior art is too low, rapid hydrogen storage and release are impossible, which increases the time required for hydrogen storage. Summary of the invention

[0004] The present invention aims at the problem that the adsorption efficiency of hydrogen by solid hydrogen storage materials in the prior art is too low, which results in the inability to quickly store and release hydrogen, thereby increasing the time required for hydrogen storage, and proposes the following technical solution:

[0005] A solid hydrogen storage tank comprises: a shell, a valve is fixedly mounted on one end of the shell, a coolant feed valve is fixedly mounted on the other end of the shell, a heat exchange tube is mounted on one end of the coolant feed valve, an embedded heat exchanger is mounted on one end of the heat exchange tube, and a solid hydrogen storage material is mounted inside the embedded heat exchanger;

[0006] An extrusion vibration mechanism is installed at a position near one end of the valve inside the shell, and the extrusion vibration mechanism includes a carbon fiber deflector fixedly installed inside the shell, spring columns are equidistantly and symmetrically embedded on the outside of the carbon fiber deflector, and a movable plate is clamped and installed between a number of the spring columns, a tilting rod is fixedly installed on the outside of the movable plate, a pressing rod is slidably connected to one end face of the tilting rod, a baffle is rotatably connected inside the movable plate, a magnet 1 is embedded and installed at the bottom end of the baffle, a connecting strip is movably installed on the top of the embedded heat exchanger, a magnet 2 is fixedly installed on the top of the connecting strip, and a knocking column is fixedly installed at the bottom end of the connecting strip near the center of gravity of the solid hydrogen storage material.

[0007] As a preferred embodiment of the above technical solution, the movable plate is equidistantly connected to the inside of the movable plate for rotation, and a baffle is installed at the top and bottom ends of the inner wall of the movable plate on both sides of the flip plate, and the baffles are staggered with the vertical center line and the horizontal center line of the movable plate, and an arc-shaped extrusion rod is welded to the top edge of the flip plate, and an arc-shaped bar is sleeved on the outside of the arc-shaped extrusion rod, and the arc-shaped bar is fixedly installed on the top of the baffle located at the top of the flip plate.

[0008] As a preferred embodiment of the above technical solution, a spring rod is embedded in one end of the pressing rod away from the valve, a supporting ring is clamped and installed between a plurality of the spring rods, and the supporting ring is fixedly installed at one end of the housing.

[0009] As a preferred embodiment of the above technical solution, a stirring blade is fixedly installed on the top of the T-shaped column, and the magnetic poles of the bottom end of magnet one and magnet two are opposite.

[0010] As a preferred embodiment of the above technical solution, a spring lifting rod is embedded in the side of the bottom end of the connecting strip away from the second magnet and the spring lifting rod is fixedly installed on the top of the embedded heat exchanger, and the knocking column is convex in shape.

[0011] As a preferred embodiment of the above technical solution, a gas acceleration mechanism is fixedly installed on the inner wall of the carbon fiber air deflector, and the gas acceleration mechanism includes a support column fixedly installed inside the carbon fiber air deflector, a connecting head is fixedly installed on one end of the support column, a connecting pipe is fixedly installed on one end of the connecting head, a conical head is fixedly installed on one end of the connecting pipe, and a Venturi tube is installed on the conical head and the inner wall of the connecting pipe.

[0012] As a preferred embodiment of the above technical solution, an inclined column is fixedly installed between the outer side of the conical head and the supporting column, and the diameter of one end of the conical head close to the stirring blade is smaller than the diameter of the other end.

[0013] As a preferred embodiment of the above technical solution, two pipes are installed inside the valve, one of which is an air inlet pipe and the other is an air outlet pipe. The air inlet pipe runs through the inside of the connector, and an inclination angle is provided at one end of the connector close to the air inlet pipe.

[0014] An integrated hydrogen storage device comprises a bracket, wherein the top end of the shell is symmetrically arranged inside the bracket, and binding belts are symmetrically installed inside the bracket at positions corresponding to the outer side of the shell.

[0015] The beneficial effects of the present invention are:

[0016] (1) It can release the tightly packed state between particles inside the solid hydrogen storage material to form some voids. The voids can increase the porosity of the storage material, thereby increasing the material's ability to adsorb hydrogen after extrusion. The vibration causes the pores inside the solid hydrogen storage material to be pre-saturated, that is, some pores are filled in advance, thereby improving its hydrogen storage properties without obvious damage. At this time, the above two methods increase the speed of hydrogen adsorption by the solid hydrogen storage material, saving the time required for the solid hydrogen storage material to adsorb;

[0017] (2) It can increase the flow rate of hydrogen, thereby increasing the impact force of hydrogen on the stirring blade, thereby facilitating the rotation of the stirring blade and changing the difficulty of rotating the stirring blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic structural diagram of a solid-state hydrogen storage tank in Example 1;

[0019] Figure 2 Shown is a cross-sectional view of the housing in Example 1;

[0020] Figure 3 The figure shows a schematic diagram of the installation structure of the spring lifting rod in Example 1;

[0021] Figure 4 The structure diagram of the extrusion vibration mechanism in Example 1 is shown;

[0022] Figure 5 Shown is a cross-sectional view of the extrusion vibration mechanism in Example 1;

[0023] Figure 6 The example 1 is shown Figure 5 Schematic diagram of the structure of the middle A area;

[0024] Figure 7 The structure diagram of the gas acceleration mechanism in Example 1 is shown;

[0025] Figure 8 Shown is a cross-sectional view of the gas acceleration mechanism in Example 1;

[0026] Fig. 9 What is shown is a schematic diagram of the installation structure of the binding belt in Example 2.

[0027] In the figure: 1. shell; 2. valve; 3. cooling material feed valve; 4. heat exchange tube; 5. embedded heat exchanger; 6. extrusion vibration mechanism; 61. carbon fiber guide cover; 62. spring column; 63. moving plate; 64. tilting rod; 65. pressing rod; 66. spring rod; 67. support ring; 68. T-type column; 69. stirring blade; 610. rotating rod; 611. magnet one; 612. flip plate; 613. baffle bar; 614. arc bar; 615. arc extrusion rod; 616. spring lifting rod; 617. connecting bar; 618. magnet two; 619. knocking column; 7. solid hydrogen storage material; 8. gas acceleration mechanism; 81. support column; 82. connector; 83. connecting pipe; 84. tilting rod; 85. conical head; 86. venturi tube; 9. bracket; 10. binding belt. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0029] Example 1

[0030] The present invention provides a solid-state hydrogen storage tank, such as Figures 1 to 8 As shown, it comprises: a shell 1, a valve 2 is fixedly installed at one end of the shell 1, a cooling material feed valve 3 is fixedly installed at the other end of the shell 1, a heat exchange tube 4 is installed at one end of the cooling material feed valve 3, an embedded heat exchanger 5 is installed at one end of the heat exchange tube 4, and a solid hydrogen storage material 7 is installed inside the embedded heat exchanger 5;

[0031] An extrusion vibration mechanism 6 is installed at a position near one end of the valve 2 inside the shell 1, and the extrusion vibration mechanism 6 includes a carbon fiber deflector 61 fixedly installed inside the shell 1, spring columns 62 are equidistantly and symmetrically embedded on the outside of the carbon fiber deflector 61, and a moving plate 63 is clamped and installed between a plurality of spring columns 62, and a tilting rod 64 is fixedly installed on the outside of the moving plate 63, and a pressing rod 65 is slidably connected to one end surface of the tilting rod 64, and a guide groove is provided inside the tilting rod 64, and a slider is welded at the top of the pressing rod 65 located inside the guide groove for connecting the pressing rod 65 and the tilting rod 64, and a baffle 613 is rotatably connected inside the moving plate 63, and a magnet 1 611 is embedded and installed at the bottom end of the baffle 613, a connecting strip 617 is movably installed at the top of the embedded heat exchanger 5, a magnet 2 618 is fixedly installed at the top of the connecting strip 617, and a knocking column 619 is fixedly installed at the bottom of the connecting strip 617 near the center of gravity of the solid hydrogen storage material 7.

[0032] like Figure 5 and Figure 6As shown, the interior of the movable plate 63 is equidistantly connected to the flip plate 612 for rotation, and a baffle 613 is installed at the top and bottom of the inner wall of the movable plate 63 on both sides of the flip plate 612, and the baffles 613 are staggered with the vertical center line and the horizontal center line of the movable plate 63. One baffle 613 and the bottom end of the flip plate 612 fit each other and are close to the embedded heat exchanger 5, and the other baffle 613 is located at the top of the flip plate 612 and the distance between the baffle and the top of the flip plate 612 is two centimeters. An arc extrusion rod 615 is welded to the edge of the top of the flip plate 612, and an arc bar 614 is sleeved on the outside of the arc extrusion rod 615. The arc bar 614 is fixedly installed on the top of the baffle 613 at the top of the flip plate 612;

[0033] When hydrogen is released, it flows outward, pushing the flip plate 612 to rotate. When the flip plate 612 rotates, the arc-shaped extrusion rod 615 moves. The arc-shaped extrusion rod 615 moves inside the arc-shaped strip 614 and pushes the gas in the arc-shaped strip 614. At this time, the holes inside the moving plate 63 are opened and closed, so that the released gas can enter the outlet pipe of the valve 2 along the moving plate 63, thereby achieving the purpose of exhaust.

[0034] like Figure 5 and Figure 6 As shown, a spring rod 66 is embedded in one end of the pressing rod 65 away from the valve 2, and a support ring 67 is clamped and installed between a plurality of spring rods 66, and the support ring 67 is fixedly installed at one end of the housing 1;

[0035] It can facilitate the resetting of the pressing rod 65 , change the difficulty of resetting the pressing rod 65 , and is used to support the spring rod 66 under the action of the supporting ring 67 , so that the spring rod 66 is fixed.

[0036] like Figure 5 and Figure 6 As shown, a stirring blade 69 is fixedly mounted on the top of the T-shaped column 68, and the bottom end of the magnet 1 611 and the bottom end of the magnet 2 618 have opposite magnetic poles;

[0037] It is possible to facilitate the mutual attraction between the second magnet 618 and the first magnet 611, and drive the T-shaped column 68 to rotate synchronously under the action of the stirring blade 69.

[0038] like Figure 3 and Figure 4 As shown, a spring lifting rod 616 is embedded and installed on the side of the bottom end of the connecting strip 617 away from the second magnet 618, and the spring lifting rod 616 is fixedly installed on the top of the embedded heat exchanger 5, and the knocking column 619 is convex in shape;

[0039] The convex knocking column 619 is used to increase the force range between the solid hydrogen storage material 7 and prevent the solid hydrogen storage material 7 from being damaged due to excessive force, and drives the connecting bar 617 to reset under the action of the spring lifting rod 616, and drives the connecting bar 617 to move in the opposite direction under the action of magnet two 618 and magnet one 611, thereby changing the difficulty of the connecting bar 617 moving back and forth.

[0040] like Figure 7 and Figure 8 As shown, a gas acceleration mechanism 8 is fixedly installed on the inner wall of the carbon fiber air deflector 61, and the gas acceleration mechanism 8 includes a support column 81 fixedly installed inside the carbon fiber air deflector 61, a connector 82 is fixedly installed on one end of the support column 81, a connecting pipe 83 is fixedly installed on one end of the connecting head 82, a conical head 85 is fixedly installed on one end of the connecting pipe 83, and a venturi tube 86 is installed on the inner wall of the conical head 85 and the connecting pipe 83;

[0041] The hydrogen entering the air inlet pipe of valve 2 enters the connecting pipe 83 through the connecting head 82, and enters the venturi tube 86 along the connecting pipe 83. After being accelerated by the venturi tube 86, it is ejected along the conical head 85, thereby changing the flow speed of the hydrogen, and then utilizing the increased gas flow rate to rotate the stirring blade 69.

[0042] like Figure 7 and Figure 8 As shown, an inclined strip 84 is fixedly installed between the outer side of the conical head 85 and the support column 81, and the diameter of one end of the conical head 85 close to the stirring blade 69 is smaller than the diameter of the other end;

[0043] The conical head 85 increases the gas flow rate, thereby increasing the impact force of the gas on the stirring blade 69, causing the stirring blade 69 to rotate, changing the difficulty of rotating the stirring blade 69, and the conical head 85 remains stable under the action of the inclined bar 84, preventing the conical head 85 from shaking.

[0044] like Figure 2 and Figure 8 As shown, two pipes are installed inside the valve 2, one of which is an air inlet pipe and the other is an air outlet pipe. The air inlet pipe runs through the inside of the connector 82, and an inclined angle is provided at one end of the connector 82 close to the air inlet pipe.

[0045] The design of the tilt angle facilitates the air intake pipe to enter the interior of the connector 82 , thereby changing the difficulty of connection between the air intake pipe and the connector 82 .

[0046] Example 2

[0047] The present invention provides an integrated hydrogen storage device, such as Fig. 9As shown, it includes a bracket 9, the top of the housing 1 is symmetrically arranged inside the bracket 9, and a binding belt 10 is symmetrically installed inside the bracket 9 at a position corresponding to the outer side of the housing 1;

[0048] By locking the binding belt 10, the binding belt 10 squeezes the outer shell 1, so that the outer shell 1 is fixed inside the bracket 9, and then the installation of multiple outer shells 1 is completed, thereby forming an integrated hydrogen storage device.

[0049] Working principle: During the actual use of the device, the valve 2 is opened, and the gas is allowed to enter the carbon fiber air deflector 61 along the air intake duct of the valve 2. The gas moves toward the moving plate 63 inside the carbon fiber air deflector 61, and the moving plate 63 is pushed to move. When the moving plate 63 moves, the spring column 62 is stretched, and the T-shaped column 68 is driven to move. At the same time, the moving plate 63 drives the magnet 1 611 to move, so that the magnet 1 611 and the magnet 2 618 are close to each other, and in this process, the moving plate 63 drives the tilting rod 64 When the tilt rod 64 moves, it presses the pressing rod 65, and when the pressing rod 65 presses the spring rod 66, the pressing rod 65 presses the solid hydrogen storage material 7 when it moves. The slight pressing temporarily releases the tightly packed state between the particles inside the solid hydrogen storage material 7, forming some gaps. The gaps can increase the porosity of the storage material, thereby increasing the material's ability to adsorb hydrogen after extrusion. In this process, hydrogen squeezes the flip plate 612, so that the flip plate 612 fits with the baffle 613, thereby sealing the moving plate 63.

[0050] At this time, the hydrogen entering the air inlet pipe of the valve 2 enters the connecting pipe 83 through the connecting head 82, and enters the venturi tube 86 along the connecting pipe 83, and is accelerated by the venturi tube 86 and ejected along the conical head 85, thereby changing the flow speed of the hydrogen, and then using the increased gas flow rate to rotate the stirring blade 69, which can increase the flow speed of the hydrogen, thereby increasing the impact force of the hydrogen on the stirring blade 69, thereby facilitating the rotation of the stirring blade 69 and changing the difficulty of rotating the stirring blade 69;

[0051] The hydrogen gas with increased flow rate impacts the outer side of the stirring blade 69, so that the stirring blade 69 rotates. When the stirring blade 69 rotates, it drives the rotating rod 610 to rotate through the T-shaped column 68. When the rotating rod 610 rotates, it drives the magnet 1 611 to rotate. When the magnet 1 611 rotates, it coincides with the center line of the magnet 2 618 and then separates. In the process of coincidence, when the center lines of the magnet 1 611 and the magnet 2 618 coincide with each other, the magnetic force drives the connecting bar 617 to move. When the connecting bar 617 moves, it drives the spring lifting rod 616 to stretch. When separating, the contraction force of the spring lifting rod 616 drives the knocking column 619 to knock the solid hydrogen storage material 7, so that the solid hydrogen storage material 7 vibrates, thereby causing the pores inside the solid hydrogen storage material 7 to be pre-saturated, that is, filling part of the pores in advance, thereby improving its hydrogen storage characteristics without obvious damage;

[0052] Finally, the cooling material enters the heat exchange tube 4 along the cooling material feed valve 3, and then enters the embedded heat exchanger 5 along the heat exchange tube 4. At this time, the embedded heat exchanger 5 exchanges heat with the solid hydrogen storage material 7, so that the solid hydrogen storage material 7 maintains a suitable temperature;

[0053] Finally, when the temperature of the solid hydrogen storage material 7 changes, hydrogen is released. Since hydrogen flows outward when released, the flow of hydrogen pushes the flip plate 612 to rotate. When the flip plate 612 rotates, the arc-shaped extrusion rod 615 moves. The arc-shaped extrusion rod 615 moves inside the arc-shaped strip 614 and pushes the gas in the arc-shaped strip 614. At this time, the holes inside the movable plate 63 are opened and closed, so that the released gas can enter the exhaust pipe of the valve 2 along the movable plate 63, thereby achieving the purpose of exhaust.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them.

Claims

1. A solid hydrogen storage tank, characterized in that: include: A housing (1), a valve (2) being fixedly mounted on one end of the housing (1), a cooling material feed valve (3) being fixedly mounted on the other end of the housing (1), a heat exchange tube (4) being mounted on one end of the cooling material feed valve (3), an embedded heat exchanger (5) being mounted on one end of the heat exchange tube (4), and a solid hydrogen storage material (7) being mounted inside the embedded heat exchanger (5); An extrusion vibration mechanism (6) is installed at a position near one end of the valve (2) inside the shell (1), and the extrusion vibration mechanism (6) comprises a carbon fiber flow guide (61) fixedly installed inside the shell (1), spring columns (62) are equidistantly and symmetrically embedded on the outer side of the carbon fiber flow guide (61), and a movable plate (63) is clamped and installed between a plurality of the spring columns (62), and a tilting rod (64) is fixedly installed on the outer side of the movable plate (63), and a pressing rod (65) is slidably connected to one end surface of the tilting rod (64), and a blocking bar (613) is rotatably connected inside the movable plate (63), and a magnet 1 (611) is embedded and installed at the bottom end of the blocking bar (613), and a connecting bar (617) is movably installed at the top end of the embedded heat exchanger (5), and a magnet 2 (618) is fixedly installed at the top end of the connecting bar (617), and a knocking column (619) is fixedly installed at the bottom end of the connecting bar (617) near the center of gravity of the solid hydrogen storage material (7).

2. A solid-state hydrogen storage tank according to claim 1, characterized in that: The movable plate (63) is equidistantly rotatably connected to a flip plate (612) inside, and a blocking bar (613) is installed at the top and bottom positions of both sides of the flip plate (612) on the inner wall of the movable plate (63), and the blocking bars (613) are staggered with the vertical center line and the horizontal center line of the movable plate (63), and an arc-shaped extrusion rod (615) is welded to the top edge of the flip plate (612), and an arc-shaped bar (614) is sleeved on the outer side of the arc-shaped extrusion rod (615), and the arc-shaped bar (614) is fixedly installed on the top of the blocking bar (613) located at the top of the flip plate (612).

3. A solid-state hydrogen storage tank according to claim 1, characterized in that: A spring rod (66) is embedded in one end of the pressing rod (65) away from the valve (2), and a support ring (67) is clamped and installed between a plurality of the spring rods (66), and the support ring (67) is fixedly installed on one end of the housing (1).

4. A solid-state hydrogen storage tank according to claim 1, characterized in that: A stirring blade (69) is fixedly mounted on the top of the T-shaped column (68), and the bottom end of the first magnet (611) and the bottom end of the second magnet (618) have opposite magnetic poles.

5. A solid-state hydrogen storage tank according to claim 1, characterized in that: A spring lifting rod (616) is embedded and installed on the side of the bottom end of the connecting strip (617) away from the second magnet (618), and the spring lifting rod (616) is fixedly installed on the top of the embedded heat exchanger (5), and the knocking column (619) is convex in shape.

6. A solid-state hydrogen storage tank according to claim 1, characterized in that: A gas acceleration mechanism (8) is fixedly mounted on the inner wall of the carbon fiber air deflector (61), and the gas acceleration mechanism (8) comprises a support column (81) fixedly mounted inside the carbon fiber air deflector (61), a connector (82) being fixedly mounted on one end of the support column (81), a connecting pipe (83) being fixedly mounted on one end of the connecting head (82), a conical head (85) being fixedly mounted on one end of the connecting pipe (83), and a venturi tube (86) being mounted on the inner wall of the conical head (85) and the connecting pipe (83).

7. A solid-state hydrogen storage tank according to claim 6, characterized in that: An inclined strip (84) is fixedly installed between the outer side of the conical head (85) and the support column (81), and the diameter of one end of the conical head (85) close to the stirring blade (69) is smaller than the diameter of the other end.

8. A solid-state hydrogen storage tank according to claim 2, characterized in that: Two pipes are installed inside the valve (2), one of which is an air inlet pipe and the other is an air outlet pipe. The air inlet pipe runs through the inside of the connector (82), and an inclined angle is provided at one end of the connector (82) close to the air inlet pipe.

9. An integrated hydrogen storage device according to claim 8, characterized in that: It comprises a bracket (9), the top end of the shell (1) is symmetrically arranged inside the bracket (9), and a binding belt (10) is symmetrically installed inside the bracket (9) at a position corresponding to the outer side of the shell (1).

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