A magnesium-based solid material heating cycle hydrogen storage device, system and hydrogen storage method

Abstract

The application discloses a magnesium-based solid material heating circulation hydrogen storage device, system and hydrogen storage method, which comprises a hydrogen storage tank, an elastic self-tight heating sleeve and a heating controller; magnesium-based hydrogen storage material powder is filled in the hydrogen storage tank, the elastic self-tight heating sleeve is sleeved on the outer wall of the hydrogen storage tank, and the elastic self-tight heating sleeve is connected with the heating controller. The hydrogen storage tank filled with magnesium-based solid hydrogen storage material powder is used for hydrogen storage, compared with traditional hydrogen storage modes such as gaseous and liquid states, the hydrogen storage density is improved, and the pressure of the hydrogen storage tank is greatly reduced, the hydrogen storage tank only needs to bear a pressure of about 3 MPa to complete the hydrogen storage work, and the safety of hydrogen energy storage hydrogen can be greatly improved through the solid hydrogen storage mode.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of magnesium-based solid-state hydrogen storage, and particularly relates to a magnesium-based solid-state material heating cycle hydrogen storage device, system and hydrogen storage method. BACKGROUND

[0002] At present, the advantages of hydrogen energy, such as cleanness, low carbon, high efficiency, renewability and zero carbon emission, have a very significant impact on global climate change, sustainable development and international energy situation, and have become the mainstream direction of world new energy development. According to the prediction report released by the Energy Agency, the global demand for hydrogen will reach 520 million tons in 2070. So far, 131 large-scale hydrogen energy development projects have been started worldwide, and hydrogen energy will account for 25% of the total global energy consumption in 2050. In the future, hydrogen energy technology will be the mainstream technical innovation direction of modern energy technology and energy revolution. However, there is a problem of low utilization rate at present, and with the development of hydrogen energy industry and the continuous expansion of application range, the storage and transportation bottleneck problems in the preparation, storage and transportation of hydrogen energy are more obvious.

[0003] In terms of hydrogen storage and transportation, high-pressure gaseous hydrogen storage is a relatively mature hydrogen storage method, but its application is limited due to low safety and low hydrogen storage density. With the increasing demand for hydrogen storage density in the market, the pressure of high-pressure hydrogen storage containers is increasing, and the safety is at greater risk. The market demand for high-capacity and high-safety solid-state hydrogen storage materials will continue to increase, and at the same time, the preparation cost of large-scale hydrogen storage materials is required to be continuously reduced.

[0004] Traditional solid-state hydrogen storage technology often has many problems in use, such as large volume, inconvenient transportation, poor hydrogen storage performance, alloy easy to powder and the like, especially cannot reach the hydrogen absorption and desorption conditions through the adjustment of the hydrogen storage device itself, so that the solid-state hydrogen storage technology with both hydrogen storage and hydrogen absorption and desorption functions cannot be realized, which greatly reduces the efficiency of the hydrogen storage technology in use. SUMMARY

[0005] The purpose of the present application is to solve the problems in the prior art, and to provide a magnesium-based solid-state material heating cycle hydrogen storage device, system and hydrogen storage method, which solves the problems of large volume, inconvenient transportation, poor hydrogen storage performance, alloy easy to powder and low safety in the prior art.

[0006] To achieve the above purpose, the following technical solutions are adopted in the present application:

[0007] A magnesium-based solid-state material heating cycle hydrogen storage device, comprising a hydrogen storage tank, an elastic self-tightening heating sleeve and a heating controller.

[0008] The magnesium-based hydrogen storage material powder is filled in the hydrogen storage tank, the elastic self-tightening heating sleeve is sleeved on the outer wall of the hydrogen storage tank, and the elastic self-tightening heating sleeve is connected with the heating controller.

[0009] Further, the hydrogen storage tank is in clearance fit with an elastic self-tight heating sleeve, the elastic self-tight heating sleeve is connected with a heating controller through a heating wire, and a high-temperature rubber sleeve is sleeved on the heating wire.

[0010] Further, the elastic self-tight heating sleeve is provided with a sleeve sliding groove on both sides, and the front end of the elastic self-tight heating sleeve is provided with a 0.25° folding angle.

[0011] Further, the elastic self-tight heating sleeve comprises a heating plate and a stainless steel sleeve, the heating plate is arranged on the stainless steel sleeve, and the heating plate is a tantalum sheet heating plate.

[0012] Further, the hydrogen storage tank is provided with a metal separation net, and the metal separation net is fixedly connected with the hydrogen storage tank shell.

[0013] Further, one side of the metal separation net is filled with activated carbon filter sponge, and the other side of the metal separation net is filled with magnesium-based hydrogen storage material powder.

[0014] Further, one end of the hydrogen storage tank is provided with a hydrogen storage tank opening, one side of the hydrogen storage tank opening is fixedly connected with a dust filter, and the other side of the dust filter is filled with activated carbon filter sponge.

[0015] A heating cycle hydrogen storage system composed of the magnesium-based solid material heating cycle hydrogen storage device, comprising a plurality of magnesium-based solid material heating cycle hydrogen storage devices, a plurality of hydrogen storage tanks are arranged in parallel, the hydrogen storage tank openings of the plurality of hydrogen storage tanks are oriented to the same side, and the plurality of elastic self-tight heating sleeves are filled with heat preservation cotton.

[0016] The plurality of hydrogen storage tanks are connected with each other through gas guide pipes, the gas guide pipes are fixedly connected with the hydrogen storage tank openings, and the gas guide pipes are fixedly connected with gas outlets and gas inlets.

[0017] Further, the plurality of hydrogen storage tanks comprise a plurality of layers, and the plurality of layers of the hydrogen storage tanks are connected in parallel through the gas guide pipes.

[0018] A hydrogen storage method, comprising:

[0019] The hydrogen storage method: hydrogen is transported to the magnesium-based hydrogen storage material powder in the plurality of hydrogen storage tanks through the gas inlet and the gas guide pipe;

[0020] The elastic self-tight heating sleeve starts to heat the hydrogen storage tank through the heating controller, the magnesium-based hydrogen storage material powder starts to absorb hydrogen after the hydrogen storage tank is heated to a specified temperature, and the heating is stopped after the hydrogen absorption is completed.

[0021] Hydrogen releasing method: the hydrogen storage tank is heated by the elastic self-tight heating sleeve controlled by the heating controller, the magnesium-based hydrogen storage material powder starts to release hydrogen after the hydrogen storage tank is heated to the specified temperature, the hydrogen is discharged from the hydrogen storage tank through the gas guide pipe and the gas outlet, and the hydrogen storage tank stops discharging hydrogen after the heating is stopped.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] The present application provides a kind of magnesium-based solid material heating cycle hydrogen storage device and system, use single hydrogen storage tank or after parallel paving arrangement and / or parallel stratified arrangement mutual communication, and elastic self-tight heating sleeve is sleeved on the outer wall of hydrogen storage tank, elastic self-tight heating sleeve is connected heating controller, fill magnesium-based hydrogen storage material powder in hydrogen storage tank.The present application stores hydrogen by hydrogen storage tank equipped with magnesium-based solid hydrogen storage material powder, and hydrogen storage of magnesium-based solid hydrogen storage material is stored in solid material by physical adsorption or chemical reaction.Hydrogen storage of solid material has high volume hydrogen storage density compared with traditional hydrogen storage mode such as gaseous and liquid, does not need high pressure container and heat insulation container, can store a large amount of hydrogen in relatively small space, and hydrogen storage performance is good, there is no explosion danger, can obtain high purity hydrogen and operation is simple, can effectively overcome the deficiency of gas, liquid two hydrogen storage modes.Magnesium-based solid hydrogen storage material of the present application is compared with other solid hydrogen storage materials, and hydrogen storage capacity is high, and the price is low, and the resources are abundant, and the hydrogen storage density is higher, which greatly reduces the pressure of hydrogen storage tank, and hydrogen storage work can be completed by hydrogen storage tank loaded with about 3MPa pressure, and the safety of hydrogen energy storage is greatly improved.

[0024] Further, by opening sleeve sliding groove on both sides of elastic self-tight heating sleeve, the front end of the sleeve is divided into two halves, and the two halves of the sleeve are bent inward with an angle of 0.25°, so that the diameter of the opening of the elastic self-tight heating sleeve is slightly smaller than the cylinder diameter. When the hydrogen storage tank is sleeved, the two halves of the front end of the sleeve are separated outward by external force, and the heating sleeve is sleeved on the hydrogen storage tank. After the sleeve is sleeved, the external force is removed, so that the two halves of the front end of the elastic self-tight heating sleeve have a clamping force in the natural state, and the hydrogen storage tank is fixed in the sleeve.

[0025] Further, by dividing the magnesium-based solid hydrogen storage material into multiple hydrogen storage tanks, the hydrogen storage material can be heated uniformly during hydrogen absorption or hydrogen release, and the magnesium-based solid hydrogen storage material can be used to the greatest extent, thereby improving the hydrogen storage density and hydrogen storage efficiency. The tank openings of the hydrogen storage tanks are uniformly oriented to one side, and the hydrogen storage tanks are connected in parallel through the gas guide pipe and the tank openings, so that the multiple hydrogen storage tanks are connected in parallel through the gas guide pipe. This not only facilitates quick replacement of the hydrogen storage tanks and improves work efficiency during use, but also ensures that the hydrogen in the hydrogen storage tanks is connected, the gas pressure is dispersed, the gas pressure in each hydrogen storage tank is uniform, and the safety of hydrogen storage is improved.

[0026] The application also provides a hydrogen storage method of the magnesium-based solid material heating cycle hydrogen storage device. The hydrogen storage tank is heated by an elastic self-tight heating sleeve and an electric heating method. When the temperature reaches a specified temperature, the heating controller controls the temperature, so that the magnesium-based solid hydrogen storage material in the hydrogen storage tank reaches a specified condition to perform hydrogen absorption or hydrogen release operation, thereby storing hydrogen energy, or using the stored hydrogen energy in the form of hydrogen. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0028] Figure 1 It is a schematic diagram of the overall structure of the magnesium-based solid material heating cycle hydrogen storage device of the present application.

[0029] Figure 2 It is a three-dimensional schematic diagram of the elastic self-tight heating sleeve of the present application.

[0030] Figure 3 It is a three-dimensional schematic diagram of the hydrogen storage tank of the present application.

[0031] Figure 4 It is a schematic diagram of the internal structure of the hydrogen storage tank of the present application.

[0032] Among them: 1-hydrogen storage tank, 2-elastic self-tight heating sleeve, 3-heating controller, 4-heating wire, 5-sleeve sliding groove, 6-gas guide pipe, 7-gas outlet, 8-gas inlet, 101-hydrogen storage tank shell, 102-magnesium-based hydrogen storage material powder, 103-metal mesh, 104-activated carbon filter sponge, 105-dust filter, 106-hydrogen storage tank mouth. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the application without creative labor fall within the scope of the application.

[0035] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0036] In the description of the embodiments of the application, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the application is usually placed, only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0038] In the description of the embodiments of the application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0039] The application will be described in further detail below in conjunction with the accompanying drawings:

[0040] Referring to Figures 1 to 4 The application provides a magnesium-based solid material heating and circulating hydrogen storage device, which comprises a hydrogen storage tank 1, an elastic self-tight heating sleeve 2, a heating controller 3, a heating wire 4 and a sleeve sliding groove 5.

[0041] The hydrogen storage tank 1 is filled with magnesium-based hydrogen storage material powder 102, and an elastic self-tight heating sleeve 2 is sleeved on the outer wall of the hydrogen storage tank 1, the elastic self-tight heating sleeve 2 is connected to a heating controller 3 through a heating wire 4, and a high-temperature rubber sleeve is sleeved on the heating wire 4, and the hydrogen storage tank 1 and the elastic self-tight heating sleeve 2 are in clearance fit.

[0042] The magnesium-based solid material heating cycle hydrogen storage system also comprises a gas guide pipe 6, an air outlet 7 and an air inlet 8. Figure 1 As shown in the figure, a plurality of hydrogen storage tank bodies 1 are horizontally and parallelly placed, the hydrogen storage tank openings 106 are uniformly directed to one side, and there is a certain interval between the hydrogen storage tanks 1. The plurality of hydrogen storage tanks 1 are connected in parallel through the gas guide pipe 6, the gas guide pipe 6 is fixedly connected with the hydrogen storage tank openings 106, the gas guide pipe 6 is fixedly connected with the air outlet 7 and the air inlet 8, hydrogen is input into the hydrogen storage tank 1 through the air inlet 8 and is discharged through the air outlet 7. An elastic self-tight heating sleeve 2 is sleeved on the outer wall of each hydrogen storage tank 1, the elastic self-tight heating sleeve 2 is connected to a heating controller 3 through a heating wire 4, and a high-temperature rubber sleeve is sleeved on the heating wire 4. The hydrogen storage tank 1 and the elastic self-tight heating sleeve 2 are in clearance fit, and the plurality of hydrogen storage tanks 1 sleeved with the elastic self-tight heating sleeve 2 are filled with heat preservation cotton.

[0043] As shown in the figure, the elastic self-tight heating sleeve 2 is provided with sleeve sliding grooves 5 on both sides, so that the front end of the sleeve is divided into two parts, and the front end of the elastic self-tight heating sleeve 2 is provided with a 0.25° angle, so that the diameter of the opening of the elastic self-tight heating sleeve 2 is slightly smaller than the diameter of the sleeve. Figure 2

[0044] As shown in the figure, the hydrogen storage tank 1 is provided with a metal screen 103, an activated carbon filter sponge 104 and a dust filter 105, and is filled with a certain amount of magnesium-based hydrogen storage material powder 102, and the powder does not fill the entire tank body, and a certain space is left in the tank body for storing hydrogen. The dust filter 105 is fixedly connected with the hydrogen storage tank opening 106, the activated carbon filter sponge 104 is placed between the dust filter 105 and the metal screen 103, and the metal screen 103 is fixedly connected with the hydrogen storage tank shell 101, so as to separate the activated carbon filter sponge 104 and the magnesium-based hydrogen storage material powder 102. Figure 4

[0045] The hydrogen storage method of the magnesium-based solid material heating cycle hydrogen storage device of the present application comprises the following steps:

[0046] ​​When the hydrogen storage device is used, hydrogen is transported to the magnesium-based hydrogen storage material powder 102 in the hydrogen storage tanks 1 through the gas inlet 8 and the gas guide pipe 6. The elastic self-tight heating sleeve 2 starts to heat the hydrogen storage tanks 1 through the heating controller 3, and when the hydrogen storage tanks 1 are heated to the specified temperature, the magnesium-based hydrogen storage material powder 102 starts to absorb hydrogen, and the heating is stopped when the hydrogen absorption is completed.

[0047] When the hydrogen storage tanks 1 need to release hydrogen, the elastic self-tight heating sleeve 2 is controlled by the heating controller 3 to heat the hydrogen storage tanks 1, and when the heating reaches the specified temperature, the magnesium-based hydrogen storage material powder 102 starts to release hydrogen, and the hydrogen is discharged from each hydrogen storage tank 1 through the gas guide pipe 6 from the gas outlet 7. After the heating is stopped, the hydrogen storage tanks 1 stop discharging hydrogen, thereby realizing the functions of safe hydrogen storage and efficient hydrogen absorption and release.

[0048] Embodiment 1:

[0049] The hydrogen storage method of the magnesium-based solid material heating cycle hydrogen storage device of the present application is as follows:

[0050] 1) The 21 hydrogen storage tanks 1 are connected in parallel through the gas guide pipe 6, and the hydrogen storage tanks 1 are arranged in three layers, seven in each layer, and the tank bodies are horizontally placed, and the tank openings 106 are uniformly directed to one side, and the hydrogen storage tanks 1 are spaced apart by 10 mm.

[0051] 2) The 21 hydrogen storage tanks 1 are combined with the 21 elastic self-tight heating sleeves 2, wherein the two halves of the front section of the sleeve are separated outward by external force, so that the elastic self-tight heating sleeve 2 can be sleeved on the outer wall of the hydrogen storage tank 1, and after the external force is removed, the elastic self-tight heating sleeve 2 is fixed on the outer wall of the hydrogen storage tank 1;

[0052] 3) The insulating cotton is filled in the gaps of the 21 hydrogen storage tanks 1;

[0053] 4) Hydrogen is introduced into the gas inlet 8;

[0054] 5) The hydrogen is transported to the 21 hydrogen storage tanks 1 through the gas guide pipe 6 and fully contacts with the magnesium-based solid hydrogen storage material powder 102;

[0055] 6) The elastic self-tight heating sleeve 2 is controlled by the heating controller 3 to heat the hydrogen storage tanks 1;

[0056] 7) When the heating reaches the hydrogen absorption condition temperature, the magnesium-based solid hydrogen storage material powder 102 starts to absorb hydrogen;

[0057] 8) When the hydrogen release work is performed, after repeating steps 1) to 6), the magnesium-based solid hydrogen storage material powder 102 starts to release hydrogen when the elastic self-tight heating sleeve 2 is heated to the hydrogen release condition temperature by the heating controller 3.

[0058] The preferred embodiments of the present application have been described above with the intent to enable those skilled in the art to make and use it. Various modifications to the preferred embodiments will be obvious to those skilled in the art and the principles and applications disclosed can be used together with other applications and as components in undreamed of applications. The present application should not be limited to the embodiments described above, but can be practiced with modification and alteration within the scope and spirit of the present application. Accordingly, the disclosure of the preferred embodiments of the present application are intended to be illustrative only and not limiting of the scope of the present application, which is set forth in the following claims.

Claims

1. A magnesium-based solid-state material heating cycle hydrogen storage device, characterized by, It comprises a hydrogen storage tank (1), an elastic self-tight heating sleeve (2) and a heating controller (3). The hydrogen storage tank (1) is filled with magnesium-based hydrogen storage material powder (102), the elastic self-tight heating sleeve (2) is sleeved on the outer wall of the hydrogen storage tank (1), and the elastic self-tight heating sleeve (2) is connected with the heating controller (3). The hydrogen storage tank (1) is provided with a metal screen (103), and the metal screen (103) is fixedly connected with the hydrogen storage tank shell (101). One side of the metal screen (103) is filled with activated carbon filter sponge (104), and the other side of the metal screen (103) is filled with magnesium-based hydrogen storage material powder (102). One end of the hydrogen storage tank (1) is provided with a hydrogen storage tank opening (106), one side of the hydrogen storage tank opening (106) is fixedly connected with a dust filter (105), and the other side of the dust filter (105) is filled with activated carbon filter sponge (104). The hydrogen storage tank (1) and the elastic self-tight heating sleeve (2) are gap-fitted, the elastic self-tight heating sleeve (2) is connected with the heating controller (3) through a heating lead wire (4), and a high-temperature rubber sleeve is sleeved on the heating lead wire (4). Both sides of the elastic self-tight heating sleeve (2) are provided with sleeve sliding grooves (5), and the front end of the elastic self-tight heating sleeve (2) is provided with a 0.25° angle.

2. The magnesium-based solid material heating and cyclic hydrogen storage device of claim 1, wherein, The elastic self-tight heating sleeve (2) comprises a heating plate and a stainless steel sleeve, the heating plate is arranged on the stainless steel sleeve, and the heating plate is a tantalum sheet heating plate.

3. A heating cycle hydrogen storage system consisting of the heating cycle hydrogen storage device of any one of claims 1 to 2, characterized in that, It comprises a plurality of magnesium-based solid material heating and circulating hydrogen storage devices, a plurality of hydrogen storage tanks (1) are arranged in parallel, the hydrogen storage tank openings (106) of the plurality of hydrogen storage tanks (1) are on the same side, and thermal insulation cotton is filled between the plurality of elastic self-tight heating sleeves (2). The plurality of hydrogen storage tanks (1) are connected with each other through gas guide pipes (6), the gas guide pipes (6) are fixedly connected with the hydrogen storage tank openings (106), and gas outlets (7) and gas inlets (8) are fixedly connected with the gas guide pipes (6).

4. The hydric heating cycle hydrogen storage system of claim 3 wherein, The plurality of hydrogen storage tanks (1) comprise a plurality of layers, and the plurality of layers of the hydrogen storage tanks (1) are connected in parallel through the gas guide pipes (6).

5. A method of storing hydrogen in the hydrogen storage system of any one of claims 3-4, wherein the method comprises: It comprises: A hydrogen storage method: hydrogen is transported to the magnesium-based hydrogen storage material powder (102) in the plurality of hydrogen storage tanks (1) through the gas inlets (8) and the gas guide pipes (6); The elastic self-tight heating sleeve (2) starts to heat the hydrogen storage tank (1) through the heating controller (3), and after the hydrogen storage tank (1) is heated to a specified temperature, the magnesium-based hydrogen storage material powder (102) starts to absorb hydrogen, and after the hydrogen absorption is completed, the heating is stopped; A hydrogen release method: the elastic self-tight heating sleeve (2) heats the hydrogen storage tank (1) through the heating controller (3), and after the hydrogen storage tank (1) is heated to a specified temperature, the magnesium-based hydrogen storage material powder (102) starts to release hydrogen, the hydrogen is discharged from the hydrogen storage tank (1) through the gas guide pipes (6) and the gas outlets (7), and after the heating is stopped, the hydrogen storage tank (1) stops discharging hydrogen.

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