A solid-state hydrogen storage device and hydrogen storage method using alloy powder

Abstract

The present invention discloses a solid-state hydrogen storage device and a hydrogen storage method using alloy powder. The hydrogen storage device includes a frame installed in a cabinet, a solid-state hydrogen storage mechanism is installed in the placement grid of the frame, the hydrogen inlets of the solid-state hydrogen storage mechanism are interconnected, the hydrogen outlets of the solid-state hydrogen storage mechanism are interconnected, and an inner lining is filled in the solid-state hydrogen storage mechanism, the inner lining has honeycomb pores uniformly, and alloy powder is filled in each honeycomb pore; the hydrogen storage method includes the processing of the inner lining and the storage and release of hydrogen operations, the processing of the inner lining mainly involves uniformly filling the alloy powder into the inner lining, and then filling the inner lining into the solid-state hydrogen storage mechanism; in the storage and release of hydrogen operations, hydrogen storage is to supply hydrogen to the solid-state hydrogen storage mechanism and take away the heat generated by the reaction of hydrogen and alloy powder, and hydrogen release is to heat the solid-state hydrogen storage mechanism to achieve hydrogen release. The present invention improves the stability of hydrogen storage and greatly increases the hydrogen storage capacity. The present invention is applicable to the technical field of solid-state hydrogen storage.

Description

Technical Field

[0001] The present invention belongs to the technical field of solid-state hydrogen storage, and in particular, relates to a solid-state hydrogen storage device and a hydrogen storage method using alloy powder. Background Art

[0002] Since hydrogen energy has high environmental performance, and compared with other traditional energy sources, it is easier to obtain and will not be exhausted, it is widely used as a new energy source. However, due to the poor stability of hydrogen, hydrogen is generally compressed into liquid hydrogen and stored in a storage tank, and then stored at low temperature. In this way, not only is the operation more troublesome, but the stability of hydrogen cannot be guaranteed. Under the interference of external force collision, electric sparks, and static electricity, it is very easy to cause safety accidents. In order to overcome the above defects, the commonly used means is to make hydrogen react with magnesium-based hydrogen storage alloys to form a stable MH metal hydride, which can be maintained at room temperature; when hydrogen is needed, the metal hydride is heated to break the metal bond between MH, achieve the effect of hydrogen release, and supply it to hydrogen-using equipment, so that the safe storage and use of hydrogen can be achieved. However, the existing magnesium-based hydrogen storage alloys are generally made into plate structures or grid structures, and hydrogen reacts with the surface of the plate structure or grid structure and adheres to the surface of the plate structure or grid structure. However, when using this method to store hydrogen, the amount of hydrogen stored is greatly limited.

[0003] Based on this, a solid-state hydrogen storage device and a hydrogen storage method using alloy powder have been developed to solve the above-mentioned technical problems. Summary of the invention

[0004] The present invention provides a solid-state hydrogen storage device and a hydrogen storage method using alloy powder, which are used to improve the stability of hydrogen storage and greatly increase the hydrogen storage capacity, and can provide a stable hydrogen energy source for hydrogen-using equipment.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A solid-state hydrogen storage device using alloy powder comprises a frame body with a plurality of placement grids installed in a cabinet body, a solid-state hydrogen storage mechanism is installed in each of the placement grids, the hydrogen inlets of the solid-state hydrogen storage mechanism are interconnected, the hydrogen outlets of the solid-state hydrogen storage mechanism are interconnected, an inner lining body is filled in the solid-state hydrogen storage mechanism, the inner lining body has uniform honeycomb pores, and alloy powder is filled in each of the honeycomb pores.

[0007] Furthermore, the solid-state hydrogen storage mechanism includes a first air pipe, an inner fixed cylinder and an outer fixed cylinder which are arranged in sequence from the inside to the outside and whose axes coincide with each other. The circumferential surfaces of the first air pipe and the inner fixed cylinder are covered with capillary pores for hydrogen to pass through. The inner lining body is filled in a first filling cavity between the inner fixed cylinder and the first air pipe, and both ends of the first filling cavity are closed. The space between the inner fixed cylinder and the outer fixed cylinder forms a gas chamber. An air guide pipe is constructed on the outer wall of the outer fixed cylinder, and a first end cover and a second end cover are detachably connected to the axial ends of the outer fixed cylinder. A first joint pipe and a second joint pipe are respectively constructed at both ends of the first air pipe, and the first joint pipe and the second joint pipe extend out of the corresponding first end cover and second end cover respectively.

[0008] Furthermore, a plurality of temperature-control baffles are evenly arranged along the circumference of the first air pipe, each temperature-control baffle extends along the radial direction of the first air pipe to the inner wall of the inner fixed tube and is fixedly connected to the inner fixed tube, and the temperature-control baffles extend along the axial direction of the first air pipe to the first end cover and the second end cover, the first end cover and the second end cover are both trumpet-shaped structures, and the small-diameter end of the trumpet-shaped structure faces away from the outer fixed tube, and a first sleeve and a second sleeve are respectively constructed at the ends of the first end cover and the second end cover away from each other, the first sleeve is sleeved on the outside of the first joint tube, and the second sleeve is sleeved on the outside of the second joint tube, an inlet joint and an outlet joint are respectively constructed on the first sleeve and the second sleeve, and a temperature control cavity is formed in each temperature-control baffle, and the two ends of the temperature control cavity are connected to the first sleeve and the second sleeve through the first end cover and the second end cover, respectively.

[0009] Furthermore, the solid-state hydrogen storage mechanism includes a hydrogen storage tank having a first sealing cover and a second sealing cover detachably connected at both axial ends, the lining body is filled in the hydrogen storage tank, and the axial ends of the hydrogen storage tank are closed, and a plurality of second air pipes parallel to the axis thereof are evenly arranged in the hydrogen storage tank, and the circumferential surface of each second air pipe is covered with capillary pores for hydrogen to pass through, and the two ends of the second air pipe respectively penetrate the two ends of the hydrogen storage tank; a first tube body and a second tube body are respectively constructed at the ends away from each other of the first sealing cover and the second sealing cover.

[0010] Furthermore, a connection port is constructed on the outer peripheral wall of the hydrogen storage tank, the connection port is closed by a cover plate, and a conducting pipe connected to the connection port is constructed on the cover plate.

[0011] Furthermore, the solid-state hydrogen storage mechanism includes a horizontal cylinder whose axial ends are respectively closed by fixed covers, the lining body is filled in the horizontal cylinder, the third air pipe coincides with the axis of the horizontal cylinder, and corresponding fixed covers are extended from both ends of the third air pipe, a temperature control tube is coaxially mounted outside the third air pipe, both ends of the temperature control tube extend out of the horizontal cylinder, and a plurality of temperature control air distribution units are constructed at the position of the temperature control tube located in the horizontal cylinder, and these temperature control air distribution units are arranged at intervals along the axial direction of the temperature control tube.

[0012] Furthermore, the temperature-controlled air distribution unit includes a plurality of temperature-controlled strips evenly arranged along the circumference of the temperature-controlled tube, an air distribution wing is constructed on each temperature-controlled strip, a medium flow channel is formed between the third air pipe and the temperature-controlled tube, the temperature-controlled strip has a temperature-controlled flow channel connected to the medium flow channel, an air flow channel for hydrogen flow is constructed in the air distribution wing, the air flow channel is connected to the third air pipe, and the portion of the air distribution wing located outside the temperature-controlled strip is covered with capillaries connected to the air flow channel.

[0013] The present invention also discloses a hydrogen storage method of the solid-state hydrogen storage device using the alloy powder, comprising the following steps:

[0014] (1) Processing of lining

[0015] Step 1, fix the filling layer structure with honeycomb pores on the supporting mechanism;

[0016] Step 2, controlling the supporting mechanism to support the filling layer structure outwardly, so that the filling layer structure is gradually stretched outwardly, causing the pore size on the filling layer structure to reach a predetermined range;

[0017] Step 3, sprinkle the alloy powder evenly on the filling layer structure, and then use the induced draft fan to suck the alloy powder evenly into the honeycomb pores of the filling layer structure;

[0018] Step 4, stacking the filling layer structures filled with alloy powder together to form an inner lining body, and filling the inner lining body into the solid hydrogen storage mechanism;

[0019] (2) Hydrogen storage and release operations

[0020] Step 1: introducing hydrogen into each solid hydrogen storage mechanism while controlling the temperature of the solid hydrogen storage mechanism, so that the hydrogen enters the lining and reacts with the alloy powder to form a stable compound;

[0021] Step 2, re-pressurizing the hydrogen that has not reacted with the alloy powder and pressing it into the solid hydrogen storage mechanism, so that the hydrogen enters the solid hydrogen storage mechanism cyclically;

[0022] Step 3, continuously injecting hydrogen into the solid hydrogen storage mechanism until the alloy powder is completely reacted;

[0023] Step 4, controlling the temperature of the solid-state hydrogen storage mechanism to keep it at room temperature;

[0024] Step 5: When hydrogen is needed, the solid-state hydrogen storage mechanism is heated, and the hydrogen will separate from the alloy powder and be discharged through the outlet of the solid-state hydrogen storage mechanism.

[0025] Furthermore, the supporting mechanism includes an elastic external support assembly arranged above the annular work platform, an induced draft hood is connected below the annular work platform, a connecting interface at the lower end of the induced draft hood is connected to the exhaust port of the induced draft fan, and the filling layer structure is clamped between the annular work platform and the elastic external support assembly.

[0026] Furthermore, the elastic external support assembly includes an electric cylinder arranged above the annular workbench, a connecting seat is detachably connected to the lower end of the electric cylinder, a plurality of elastic telescopic rods are evenly hinged on the circumference of the connecting seat, an upper arc-shaped clamping block is hinged on the end of each elastic telescopic rod away from the connecting seat, and a vibration motor is installed at the lower end of the connecting seat; a plurality of guide rails are evenly constructed along the circumference of the annular workbench, each of the guide rails extends along the radial direction of the annular workbench, a lower arc-shaped clamping block is slidably connected to each guide rail, the lower arc-shaped clamping block is arranged corresponding to the upper arc-shaped clamping block, and the edge of the filling layer structure is clamped between the lower arc-shaped clamping block and the upper arc-shaped clamping block.

[0027] Since the present invention adopts the above-mentioned structure, the technical progress achieved compared with the prior art is that: the main core component of the hydrogen storage of the present invention is the lining body, which is a fluffy structure made of high-temperature resistant material, and has honeycomb pores. These honeycomb pores are mainly used to accommodate alloy powder and ensure the circulation of hydrogen, so that hydrogen can fully contact and react with the alloy powder to form a stable combination. Compared with the existing plate structure or grid structure, its contact and combination ability with hydrogen is extremely high; and the present invention can adjust the density of the alloy powder filled in the lining body by changing the fluffiness of the lining body, and then adjust the hydrogen storage capacity, that is, the greater the density of the alloy powder in the lining body, the stronger the hydrogen storage capacity, but the density of the alloy powder in the lining body cannot exceed the predetermined range, so that hydrogen is not easy to penetrate into the lining body, thereby affecting the reaction between hydrogen and alloy powder, and when hydrogen is released, hydrogen is separated from the alloy powder, but it is not easy to be discharged through the lining body. The lining body of the present invention is formed by stacking multiple filling layer structures together. Before stacking the filling layer structure, the alloy powder needs to be filled into the filling layer structure in advance. Specifically, the filling layer structure is propped up by a supporting mechanism, and the pore size on the filling layer structure is adjusted according to the degree of support of the supporting mechanism. Then, the alloy powder is evenly sprinkled on the filling layer structure, and the alloy powder gradually penetrates into the pores of the filling layer through vibration and wind suction. In summary, the present invention can effectively improve the stability of hydrogen storage and greatly increase the hydrogen storage capacity, so as to provide stable and sufficient hydrogen energy for hydrogen-using equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0029] In the attached picture:

[0030] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of a structure in which a plurality of first-type solid-state hydrogen storage mechanisms are installed on a frame according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic structural diagram of a first solid-state hydrogen storage mechanism according to an embodiment of the present invention;

[0033] Figure 4 This is an axial structural cross-sectional view of the first solid-state hydrogen storage mechanism according to an embodiment of the present invention;

[0034] Figure 5 It is a partial radial structural cross-sectional view of the first solid-state hydrogen storage mechanism according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic structural diagram of a plurality of second-type solid-state hydrogen storage mechanisms interconnected in an embodiment of the present invention;

[0036] Figure 7 This is a schematic structural diagram of a second solid-state hydrogen storage mechanism according to an embodiment of the present invention;

[0037] Figure 8 It is a partial radial structural cross-sectional view of the second solid-state hydrogen storage mechanism of the invention embodiment;

[0038] Fig. 9 This is a schematic structural diagram of a third solid-state hydrogen storage mechanism according to an embodiment of the present invention;

[0039] Fig.10 This is an axial structural cross-sectional view of a third solid-state hydrogen storage mechanism according to an embodiment of the present invention;

[0040] Fig.11 This is a schematic diagram of the structure of the third solid-state hydrogen storage mechanism of the embodiment of the present invention after removing the horizontal cylinder;

[0041] Fig.12 This is a schematic structural diagram of a temperature-controlled gas distribution unit in a third solid-state hydrogen storage mechanism according to an embodiment of the present invention;

[0042] Fig.13 It is an axial structural cross-sectional view of the temperature control gas distribution unit in the third solid-state hydrogen storage mechanism of the embodiment of the present invention, which is connected with the temperature control pipe and the third gas pipe;

[0043] Fig.14 for Fig.13A schematic diagram of another angle of the structure shown;

[0044] Fig.15 This is a schematic structural diagram of another form of the temperature-controlled gas distribution unit in the third solid-state hydrogen storage mechanism of an embodiment of the present invention;

[0045] Fig.16 This is a schematic diagram of the partial structure of the lining body according to an embodiment of the present invention;

[0046] Fig.17 It is a structural schematic diagram of a support mechanism according to an embodiment of the present invention;

[0047] Fig.18 A schematic structural diagram of the support mechanism of an embodiment of the present invention from another angle;

[0048] Fig.19 This is a schematic diagram of the structure in which the elastic telescopic rod and the upper arc-shaped clamping block are hingedly connected in an embodiment of the present invention;

[0049] Fig. 20 This is a schematic diagram of the structure in which the annular workbench is connected to the lower arc-shaped clamp block via a guide rail according to an embodiment of the present invention;

[0050] Fig.21 It is a schematic structural diagram of a lower arc-shaped clamping block with anti-slip grooves on the upper surface according to an embodiment of the present invention.

[0051] Labeled parts: 100-solid-state hydrogen storage mechanism A, 101-external fixed cylinder, 102-internal fixed cylinder, 103-first air pipe, 104-gas chamber, 105-temperature control baffle, 106-first filling chamber, 107-temperature control chamber, 108-first joint pipe, 109-second joint pipe, 110-air guide pipe, 111-first end cover, 112-first sleeve, 113-inlet joint, 114-second end cover, 115-second sleeve, 116-outlet joint, 200-frame, 300- Cabinet, 400-first connecting pipe, 500-second connecting pipe, 600-third connecting pipe, 700-solid hydrogen storage mechanism B, 701-hydrogen storage tank, 702-second filling chamber, 703-second air pipe, 704-connecting port, 705-cover plate, 706-conducting pipe, 707-first sealing cover, 708-first tube body, 709-second sealing cover, 710-second tube body, 800-fourth connecting pipe, 900-fifth connecting pipe, 1000-sixth connecting pipe, 1001-first connecting Joint, 1002-second connecting joint, 1100-seventh connecting pipe, 1200-eighth connecting pipe, 1300-solid hydrogen storage mechanism C, 1301-horizontal cylinder, 1302-fixed cover, 1303-third air pipe, 1304-temperature control pipe, 1305-third filling chamber, 1306-temperature control air distribution unit, 13061-temperature control strip, 13062-air distribution wing, 13063-temperature control flow channel, 13064-air flow channel, 1307-adapter sleeve, 1308-transmission wheel, 1309-temperature control strip, 1310-air distribution wing, 1311-temperature control flow channel, 1312-air distribution wing, 1313-temperature control flow channel, 1314-air flow channel, 1315-adapter sleeve, 1316-transmission wheel, 1317-transmission wheel, 1318-temperature control strip, 1319-air distribution wing, 1320-temperature control flow channel, 1321-air distribution wing, 1322-air distribution wing, 1323-temperature control flow channel, 1324-air flow channel, 1325-adapter sleeve, 1326-transmission wheel, 1327-transmission wheel, 1328-temperature control strip, 1329-air distribution wing, 1330-temperature control flow channel, 1331-air distribution wing, 1332-air distribution wing, 1333-temperature control flow channel, 1334-air flow channel, 1335-adapter sleeve, 1336-transmission wheel, 1337-transmission wheel, 1338-transmission wheel, 1339-temperature control strip, 133 09-medium circulation channel, 1400-electric cylinder, 1401-connecting seat, 1402-elastic telescopic rod, 14021-connecting sleeve, 14022-connecting rod body, 1403-upper arc clamping block, 1404-vibration motor, 1405-clamping hole, 1500-annular workbench, 1501-guide rail, 1502-lower arc clamping block, 1503-draft hood, 1504-connecting interface, 1505-slider, 1506-clamping pin, 1507-anti-slip pattern, 1600-lining body. DETAILED DESCRIPTION

[0052] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0053] The present invention discloses a solid-state hydrogen storage device using alloy powder, such as Figure 1-16As shown, it includes a cabinet 300, in which a frame 200 is constructed, and the frame 200 is filled with placement grids, and a solid hydrogen storage mechanism is installed in each placement grid, and the hydrogen inlets of these solid hydrogen storage mechanisms are interconnected, and the hydrogen outlets of these solid hydrogen storage mechanisms are also interconnected. The present invention is filled with an inner lining body 1600 in the solid hydrogen storage mechanism, and the inner lining body 1600 has honeycomb pores uniformly, and alloy powder is filled in each honeycomb pore. The solid hydrogen storage mechanism of the present invention is realized in three ways, namely, solid hydrogen storage mechanism A100, solid hydrogen storage mechanism B700 and solid hydrogen storage mechanism C1300. The working principle and advantages of the present invention are as follows: the main core component of the hydrogen storage of the present invention is the lining body 1600, which is a fluffy structure made of high temperature resistant material, and has honeycomb pores in the lining body 1600, which are mainly used to accommodate alloy powder and ensure the circulation of hydrogen, so that hydrogen can fully contact and react with the alloy powder to form a stable combination. Compared with the existing plate structure or grid structure, its contact and combination ability with hydrogen is extremely high; and The present invention can adjust the density of the alloy powder filled in the lining body 1600 by changing the fluffiness of the lining body 1600, and then adjust the hydrogen storage capacity, that is, the greater the density of the alloy powder in the lining body 1600, the stronger the hydrogen storage capacity, but the density of the alloy powder in the lining body 1600 cannot exceed the predetermined range, so that hydrogen is not easy to penetrate into the lining body 1600, thereby affecting the reaction between hydrogen and the alloy powder, and when hydrogen is released, the hydrogen is separated from the alloy powder, but it is not easy to be discharged through the lining body 1600. All solid-state hydrogen storage mechanisms on the frame 200 of the present invention can perform hydrogen storage or hydrogen release operations simultaneously, and can also perform hydrogen storage or hydrogen release operations separately. In summary, it can be seen that the present invention can effectively improve the stability of hydrogen storage and greatly increase the hydrogen storage capacity, so as to provide a stable and sufficient hydrogen energy source for hydrogen-using equipment.

[0054] As a preferred embodiment of the present invention, Figure 3-5As shown, the solid-state hydrogen storage mechanism A100 includes a first air pipe 103, an inner fixed tube 102 and an outer fixed tube 101, wherein the axes of the first air pipe 103, the inner fixed tube 102 and the outer fixed tube 101 coincide and are arranged in sequence from the inside to the outside. In this embodiment, the circumference of the first air pipe 103 and the inner fixed tube 102 are covered with capillaries for hydrogen to pass through, and a first filling cavity 106 is formed between the inner fixed tube 102 and the first air pipe 103. The above-mentioned lining body 1600 is filled in the first filling cavity 106, and both ends of the first filling cavity 106 are closed. In this embodiment, the space between the inner fixed tube 102 and the outer fixed tube 101 forms a gas chamber 104, and an air guide tube 110 is constructed on the outer wall of the outer fixed tube 101, and the air guide tube 110 is connected to the gas chamber 104. The first end cap 111 and the second end cap 114 are detachably connected to the axial ends of the outer fixed tube 101, and the first joint pipe 108 and the second joint pipe 109 are respectively constructed at the two ends of the first air pipe 103, and the first joint pipe 108 and the second joint pipe 109 extend out of the corresponding first end cap 111 and the second end cap 114 respectively. Figure 1 As shown, in this embodiment, the first joint pipes 108 located in the same row are all connected to the first connecting pipe 400, and the second joint pipes 109 located in the same row are connected to another first connecting pipe 400; the air guide pipes 110 located in the same row are connected through the second connecting pipe 500. Hydrogen enters each first joint pipe 108 from the first connecting pipe 400, and enters the corresponding first air pipe 103 through the first joint pipe 108, and then enters the first filling cavity 106 through the capillaries on the first air pipe 103, so that the hydrogen reacts with the alloy powder in the liner 1600, and the unreacted hydrogen enters the gas chamber 104, and enters the second connecting pipe 500 through the air guide pipe 110, and then the hydrogen in the second connecting pipe 500 is recovered and pressurized, so that this part of hydrogen enters the first air pipe 103 again through the first connecting pipe 400. When the hydrogen stored in the lining body 1600 needs to be released, the lining body 1600 is heated so that the alloy powder in the lining body 1600 is heated and releases the bound hydrogen. The released hydrogen enters the gas chamber 104, and then enters the second connecting pipe 500 through the gas guide pipe 110, and is then supplied to the hydrogen-using equipment.

[0055] As a preferred embodiment of the present invention, Figure 4 , 5As shown, a plurality of temperature control baffles 105 are evenly arranged on the first air pipe 103 along its circumference, wherein each temperature control baffle 105 extends along the radial direction of the first air pipe 103 to the inner wall of the inner fixed tube 102, and one end of the temperature control baffle 105 away from the first air pipe 103 is fixedly connected to the inner fixed tube 102, and the temperature control baffle 105 extends along the axial direction of the first air pipe 103 to the first end cover 111 and the second end cover 114. The first end cover 111 and the second end cover 114 of this embodiment are both trumpet-shaped structures, and the small-diameter end of the trumpet-shaped structure is away from the outer fixed tube 101. A first sleeve 112 and a second sleeve 115 are respectively constructed at the ends of the first end cover 111 and the second end cover 114 that are away from each other, wherein the first sleeve 112 is coaxially sleeved outside the first joint pipe 108, and the second sleeve 115 is coaxially sleeved outside the second joint pipe 109, and an inlet joint 113 and an outlet joint 116 are respectively constructed on the first sleeve 112 and the second sleeve 115. In this embodiment, a temperature control cavity 107 is formed in each temperature control baffle 105, and the two ends of the temperature control cavity 107 are connected to the first sleeve 112 and the second sleeve 115 through the conical cavity of the first end cover 111 and the conical cavity of the second end cover 114. Figure 1 As shown, in this embodiment, the inlet joints 113 located in the same row are connected to a third connecting pipe 600, and the outlet joints 116 located in the same row are connected to another third connecting pipe 600. The working principle and advantages of this embodiment are: when performing hydrogen storage operation, heat is generated due to the reaction between the alloy powder and hydrogen, and this part of the heat needs to be taken away in time. In this way, the cooling medium is supplied to the temperature control cavity 107 of each temperature control partition 105 through the inlet joint 113, and then discharged from the outlet joint 116. Since the temperature control partition 105 is always cooled by the cooling medium, the heat generated by the reaction is transferred to the temperature control partition 105, and then the cooling medium takes this part of the heat away. When the hydrogen release operation is performed, the heating medium is supplied to the temperature control cavity 107 of each temperature control partition 105 through the inlet joint 113, and then discharged from the outlet joint 116. Since the temperature control partition 105 is always heated by the heating medium, it serves the purpose of heating the first filling cavity 106. When the temperature of the first filling cavity 106 rises to a predetermined range, the alloy powder in the lining body 1600 releases hydrogen, and the released hydrogen is discharged from the outer fixed cylinder 101 for use.

[0056] As a preferred embodiment of the present invention, Figure 7 , 8As shown, the solid-state hydrogen storage mechanism B700 includes a hydrogen storage tank 701, the axial ends of which are detachably connected with a first sealing cover 707 and a second sealing cover 709, a second filling cavity 702 is formed in the hydrogen storage tank 701, the lining body 1600 is filled in the second filling cavity 702 of the hydrogen storage tank 701, and the axial ends of the hydrogen storage tank 701 are closed. In this embodiment, a plurality of second air pipes 703 are evenly arranged in the hydrogen storage tank 701, and these second air pipes 703 are parallel to the axis of the hydrogen storage tank 701, and the circumferential surface of each second air pipe 703 is covered with capillaries for hydrogen to pass through, and the two ends of the second air pipe 703 respectively penetrate the two ends of the hydrogen storage tank 701. The first sealing cover 707 and the second sealing cover 709 of this embodiment are configured as a conical structure, and the first tube body 708 and the second tube body 710 are respectively configured at the ends away from each other of the first sealing cover 707 and the second sealing cover 709. In this embodiment, a connection port 704 is constructed on the outer peripheral wall of the hydrogen storage tank 701, and the connection port 704 is closed by a cover plate 705. A conducting pipe 706 connected to the connection port 704 is constructed on the cover plate 705. Figure 6 As shown, in this embodiment, the first tube bodies 708 located in the same row are connected through the fourth connecting tube 800, the second tube bodies 710 located in the same row are connected through the fifth connecting tube 900, and the conducting tubes 706 in the same row are connected through the seventh connecting tube 1100, and the fourth connecting tubes 800 arranged up and down are connected through a main pipe, and the fifth connecting tubes 900 arranged up and down are connected through another main pipe, and the two main pipes are connected through the sixth connecting pipe 1000, one of the main pipes is configured with a first connecting joint 1001, and the other main pipe is configured with a second connecting joint 1002; the seventh connecting pipes 1100 arranged up and down are connected through the eighth connecting pipe 1200. In this embodiment, the heat released by hydrogen storage can be absorbed or the heat required for hydrogen release can be provided by cooling or heating the outside of the hydrogen storage tank 701. The working principle and advantages of this embodiment are: when performing hydrogen storage operation, the second tube body 710 is closed, and hydrogen is supplied to each second gas pipe 703 through the first tube body 708, and then enters the second filling cavity 702 through the capillary holes on the second gas pipe 703, so that the hydrogen reacts with the alloy powder in the liner body 1600, and the unreacted hydrogen is recovered through the conductive tube 706, and the recovered hydrogen is pressurized and supplied to the second filling cavity 702 again. When performing hydrogen release operation, the hydrogen storage tank 701 is heated to increase the temperature of the second filling cavity 702, so that the hydrogen is released, and then supplied to the hydrogen-using equipment through the conductive tube 706. The first tube body 708 and the second tube body 710 of this embodiment have the same function and can be used interchangeably. When hydrogen is supplied to the second filling chamber 702 through the first tube body 708, the valve opening on the second tube body 710 can be controlled to control the pressure and flow of the hydrogen, and the hydrogen bypassed through the second tube body 710 returns to the hydrogen supply device.

[0057] As a preferred embodiment of the present invention, Figure 9-15 As shown, the solid-state hydrogen storage mechanism C1300 includes a horizontal cylinder 1301 and a third air pipe 1303, and fixed covers 1302 are detachably connected to the axial ends of the horizontal cylinder 1301, and the two fixed covers 1302 seal the axial ends of the horizontal cylinder 1301, and a third filling cavity 1305 is formed in the horizontal cylinder 1301, and the lining body 1600 is filled in the third filling cavity 1305 of the horizontal cylinder 1301. Among them, the third air pipe 1303 of this embodiment coincides with the axis of the horizontal cylinder 1301, and the corresponding fixed covers 1302 are extended from the two ends of the third air pipe 1303. In this embodiment, a temperature control tube 1304 is coaxially sleeved outside the third air pipe 1303, and both ends of the temperature control tube 1304 extend out of the horizontal cylinder 1301. A plurality of temperature control air distribution units 1306 are constructed at the portion of the temperature control tube 1304 located inside the horizontal cylinder 1301. These temperature control air distribution units 1306 are arranged at intervals along the axial direction of the temperature control tube 1304, and a barrier net is arranged between adjacent temperature control air distribution units 1306. The lining body 1600 is filled between the barrier nets of two adjacent temperature control air distribution units 1306. In this embodiment, a medium flow channel 1309 is formed between the third air pipe 1303 and the temperature control tube 1304, and adapter sleeves 1307 are rotatably connected at both ends of the temperature control tube 1304, and each adapter sleeve 1307 is constructed with a medium joint, and the medium joint is connected to the medium flow channel 1309 through the adapter sleeve 1307 and the connecting hole opened on the temperature control tube 1304. In this embodiment, transmission wheels 1308 are coaxially mounted on both ends of the temperature control tube 1304. The transmission wheels 1308 are driven to drive the temperature control tube 1304 to rotate, so that the temperature control tube 1304 drives the temperature control gas distribution unit 1306 thereon to rotate, so as to realize the rotation of gas distribution for the third filling chamber 1305, and then perform hydrogen storage operation; when hydrogen needs to be released, the temperature control gas distribution unit 1306 is heated to release hydrogen, and at the same time, the third gas pipe 1303 is sucked, and the released hydrogen is discharged through the third gas pipe 1303. Alternatively, an exhaust port is constructed on the outer peripheral wall of the horizontal cylinder 1301, and the released hydrogen can be discharged through the exhaust port and supplied to hydrogen-using equipment or a collection tank, etc.

[0058] As a preferred embodiment of the present invention, Figure 12-14As shown, the temperature control air distribution unit 1306 includes a plurality of temperature control strips 13061 uniformly arranged along the circumference of the temperature control tube 1304, and an air distribution wing 13062 is constructed on each temperature control strip 13061. The temperature control strip 13061 has a temperature control flow channel 13063 connected to the medium flow channel 1309, and an air flow channel 13064 for hydrogen flow is constructed in the air distribution wing 13062. The air flow channel 13064 is connected to the third air pipe 1303, and the portion of the air distribution wing 13062 located outside the temperature control strip 13061 is covered with capillaries connected to the air flow channel 13064. The working principle and advantages of this embodiment are: when storing hydrogen, hydrogen enters the third air pipe 1303, and then enters each air flow channel 13064 synchronously from the third air pipe 1303, and finally enters the third filling cavity 1305 from the capillary holes on the air wing 13062 and reacts with the alloy powder. At the same time, the cooling medium enters the temperature control channel 13063 through the adapter sleeve 1307, and then passes through each temperature control strip 13061 in sequence from the temperature control channel 13063, so that it carries the heat generated by the reaction. When dehydrogenation is performed, the heating medium enters the temperature control channel 13063 through the adapter sleeve 1307, and then passes through each temperature control strip 13061 in sequence from the temperature control channel 13063, so that it heats the third filling cavity 1305, so that the alloy powder dehydrogenates. In order to change the flow direction of hydrogen to make it have a swirl effect, and thereby improve the ability of the hydrogen entering the third filling cavity 1305 to fully react with the alloy powder in the lining body 1600, the measures taken in this embodiment are as follows: Fig.15 As shown, the temperature control strip 13061 and the air wing 13062 are constructed together and are in the shape of fan blades.

[0059] The present invention also discloses a hydrogen storage method of the solid-state hydrogen storage device using the alloy powder, comprising the following steps:

[0060] (1) Processing of lining body 1600

[0061] Step 1, fix the filling layer structure with honeycomb pores on the supporting mechanism;

[0062] Step 2, controlling the supporting mechanism to support the filling layer structure outwardly, so that the filling layer structure is gradually stretched outwardly, causing the pore size on the filling layer structure to reach a predetermined range;

[0063] Step 3, sprinkle the alloy powder evenly on the filling layer structure, and then use the induced draft fan to suck the alloy powder evenly into the honeycomb pores of the filling layer structure;

[0064] Step 4, stacking the filling layer structures filled with alloy powder together to form an inner lining body 1600, and filling the inner lining body 1600 into the solid hydrogen storage mechanism;

[0065] (2) Hydrogen storage and release operations

[0066] Step 1: introducing hydrogen into each solid hydrogen storage mechanism while controlling the temperature of the solid hydrogen storage mechanism, so that the hydrogen enters the lining body 1600 and reacts with the alloy powder to form a stable compound;

[0067] Step 2, re-pressurizing the hydrogen that has not reacted with the alloy powder and pressing it into the solid hydrogen storage mechanism, so that the hydrogen enters the solid hydrogen storage mechanism cyclically;

[0068] Step 3, continuously injecting hydrogen into the solid hydrogen storage mechanism until the alloy powder is completely reacted;

[0069] Step 4, controlling the temperature of the solid-state hydrogen storage mechanism to keep it at room temperature;

[0070] Step 5: When hydrogen is needed, the solid-state hydrogen storage mechanism is heated, and the hydrogen will separate from the alloy powder and be discharged through the outlet of the solid-state hydrogen storage mechanism.

[0071] As a preferred embodiment of the present invention, Fig.17 , 18 As shown, the support mechanism includes an elastic outer support component, an annular workbench 1500 and an induced draft hood 1503. Among them, the elastic outer support component is arranged above the annular workbench 1500, the induced draft hood 1503 is connected to the bottom of the annular workbench 1500, and the elastic outer support component and the induced draft hood 1503 are arranged relative to each other; in this embodiment, a connection interface 1504 is constructed at the lower end of the induced draft hood 1503, and the connection interface 1504 is connected to the exhaust port of the induced draft fan, and the filling layer structure is clamped between the annular workbench 1500 and the elastic outer support component. The working principle and advantage of this embodiment are: the filling layer structure is placed on the annular workbench 1500, and then the elastic outer support component is controlled to press down the filling layer structure, so that the filling layer structure is clamped between the annular workbench 1500 and the elastic outer support component, and then according to the demand, the elastic outer support component is continuously controlled to expand the filling layer structure, and the pores on the filling layer structure are controlled to be within a predetermined range. Afterwards, the alloy powder is filled into the filling layer structure, and synchronously, the induced draft fan is controlled to extract air, so that the alloy powder on the filling layer structure gradually penetrates into the filling layer structure under negative pressure.

[0072] As a preferred embodiment of the present invention, Figure 17-21As shown, the elastic outer support assembly includes an electric cylinder 1400 disposed above the annular workbench 1500, a connecting seat 1401 is detachably connected to the lower end of the electric cylinder 1400, and a plurality of elastic telescopic rods 1402 are evenly hinged in the circumferential direction of the connecting seat 1401. The elastic telescopic rod 1402 includes a connecting sleeve 14021 and a connecting rod body 14022 that are inserted into each other, a connecting spring is installed in the connecting sleeve 14021, one end of the connecting spring is connected to the connecting rod body 14022, one end of the connecting sleeve 14021 away from the connecting rod body 14022 is hinged to the connecting seat 1401, one end of the connecting rod body 14022 away from the connecting seat 1401 is hinged to an upper arc-shaped clamping block 1403, and a vibration motor 1404 is installed at the lower end of the connecting seat 1401. In this embodiment, a plurality of guide rails 1501 are uniformly configured along the circumference of the annular work table 1500, each guide rail 1501 extends along the radial direction of the annular work table 1500, and a lower arc-shaped clamping block 1502 is slidably connected to each guide rail 1501, that is, a slider 1505 is configured at the lower end of the lower arc-shaped clamping block 1502, and the slider 1505 is assembled on the guide rail 1501 and slidably connected to the guide rail 1501. The lower arc-shaped clamping block 1502 is correspondingly arranged to the upper arc-shaped clamping block 1403, and the edge of the filling layer structure is clamped between the lower arc-shaped clamping block 1502 and the upper arc-shaped clamping block 1403. In order to ensure that the lower arc clamping block 1502 and the upper arc clamping block 1403 can be matched stably and to ensure that the edge of the filling layer structure can be tightly clamped, two clamping holes 1405 are provided on the upper arc clamping block 1403, and two clamping pins 1506 are configured on the lower arc clamping block 1502. The two clamping pins 1506 are arranged in a one-to-one correspondence with the two clamping holes 1405. When the lower arc clamping block 1502 and the upper arc clamping block 1403 cooperate with each other, the clamping pins 1506 extend into the corresponding clamping holes 1405. In addition, in this embodiment, anti-slip grooves 1507 are respectively configured on the surfaces of the lower arc clamping block 1502 and the upper arc clamping block 1403 that are close to each other to fully prevent the edge of the filling layer structure from slipping off. The working principle and advantages of this embodiment are as follows: first, the filling layer structure is placed on the lower arc-shaped clamping block 1502 of the annular workbench 1500, and then the electric cylinder 1400 is controlled to move so as to drive the connecting seat 1401 to move downward, and the connecting seat 1401 drives each elastic telescopic rod 1402 to descend synchronously until the upper arc-shaped clamping block 1403 is pressed on the lower arc-shaped clamping block 1502, so as to clamp the edge of the filling layer structure; and the connecting seat 1401 is continued to be driven downward to move according to demand, so that the elastic telescopic rod 1402 gradually opens outward, thereby prompting the upper arc-shaped clamping block 1403 to press the lower arc-shaped clamping block 1502 to move along the guide rail 1501 until the filling layer structure is stretched to a predetermined degree; thereafter, the alloy powder is sprinkled on the filling layer structure, and the vibration motor 1404 is controlled to move, and the induced draft fan is synchronously controlled to move, and under the synchronous action of negative pressure and vibration, the alloy powder gradually and evenly penetrates into the filling layer structure.

[0073] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A solid-state hydrogen storage device using alloy powder, characterized in that: It comprises a frame having a plurality of placement grids installed in a cabinet, a solid hydrogen storage mechanism is installed in each of the placement grids, the hydrogen inlets of the solid hydrogen storage mechanism are interconnected, the hydrogen outlets of the solid hydrogen storage mechanism are interconnected, an inner lining body is filled in the solid hydrogen storage mechanism, the inner lining body has uniform honeycomb pores, and alloy powder is filled in each of the honeycomb pores; The solid-state hydrogen storage mechanism comprises a horizontal cylinder whose axial ends are respectively closed by fixed covers, the lining body is filled in the horizontal cylinder, the third air pipe coincides with the axis of the horizontal cylinder, and the two ends of the third air pipe extend out of corresponding fixed covers respectively, a temperature control tube is coaxially sleeved outside the third air pipe, the two ends of the temperature control tube extend out of the horizontal cylinder, and a plurality of temperature control air distribution units are constructed at the position of the temperature control tube located in the horizontal cylinder, and these temperature control air distribution units are arranged at intervals along the axial direction of the temperature control tube; The temperature-controlled air distribution unit includes a plurality of temperature-controlled strips uniformly arranged along the circumference of the temperature-controlled tube, an air distribution wing is constructed on each temperature-controlled strip, a medium flow channel is formed between the third air pipe and the temperature-controlled tube, the temperature-controlled strip has a temperature-controlled flow channel connected to the medium flow channel, an air flow channel for hydrogen flow is constructed in the air distribution wing, the air flow channel is connected to the third air pipe, and the portion of the air distribution wing located outside the temperature-controlled strip is covered with capillaries connected to the air flow channel.

2. A hydrogen storage method using a solid-state hydrogen storage device using alloy powder as claimed in claim 1, characterized in that: The steps include: (1) Processing of lining Step 1, fix the filling layer structure with honeycomb pores on the supporting mechanism; Step 2, controlling the supporting mechanism to support the filling layer structure outwardly, so that the filling layer structure is gradually stretched outwardly, causing the pore size on the filling layer structure to reach a predetermined range; Step 3, sprinkle the alloy powder evenly on the filling layer structure, and then use the induced draft fan to suck the alloy powder evenly into the honeycomb pores of the filling layer structure; Step 4, stacking the filling layer structures filled with alloy powder together to form an inner lining body, and filling the inner lining body into the solid hydrogen storage mechanism; (2) Hydrogen storage and release operations Step 1: introducing hydrogen into each solid hydrogen storage mechanism while controlling the temperature of the solid hydrogen storage mechanism, so that the hydrogen enters the lining and reacts with the alloy powder to form a stable compound; Step 2, re-pressurizing the hydrogen that has not reacted with the alloy powder and pressing it into the solid hydrogen storage mechanism, so that the hydrogen enters the solid hydrogen storage mechanism cyclically; Step 3, continuously injecting hydrogen into the solid hydrogen storage mechanism until the alloy powder is completely reacted; Step 4, controlling the temperature of the solid-state hydrogen storage mechanism to keep it at room temperature; Step 5: When hydrogen is needed, the solid-state hydrogen storage mechanism is heated, and the hydrogen will separate from the alloy powder and be discharged through the outlet of the solid-state hydrogen storage mechanism.

3. The hydrogen storage method of a solid-state hydrogen storage device using alloy powder according to claim 2, characterized in that: The supporting mechanism includes an elastic external supporting assembly arranged above the annular working platform, an induced draft hood is connected below the annular working platform, a connecting interface at the lower end of the induced draft hood is connected to the exhaust port of the induced draft fan, and the filling layer structure is clamped between the annular working platform and the elastic external supporting assembly.

4. The hydrogen storage method of a solid-state hydrogen storage device using alloy powder according to claim 3, characterized in that: The elastic external support assembly includes an electric cylinder arranged above the annular workbench, a connecting seat is detachably connected to the lower end of the electric cylinder, a plurality of elastic telescopic rods are evenly hinged on the circumference of the connecting seat, an upper arc-shaped clamping block is hinged on the end of each elastic telescopic rod away from the connecting seat, and a vibration motor is installed on the lower end of the connecting seat; a plurality of guide rails are evenly constructed along the circumference of the annular workbench, each of the guide rails extends along the radial direction of the annular workbench, a lower arc-shaped clamping block is slidably connected to each guide rail, the lower arc-shaped clamping block is arranged corresponding to the upper arc-shaped clamping block, and the edge of the filling layer structure is clamped between the lower arc-shaped clamping block and the upper arc-shaped clamping block.

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