CN117028837A - Solid-state hydrogen storage device of magnesium-based metal hydride - Google Patents
Solid-state hydrogen storage device of magnesium-based metal hydride Download PDFInfo
- Publication number
- CN117028837A CN117028837A CN202310989022.4A CN202310989022A CN117028837A CN 117028837 A CN117028837 A CN 117028837A CN 202310989022 A CN202310989022 A CN 202310989022A CN 117028837 A CN117028837 A CN 117028837A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- hydrogen storage
- heat
- tank body
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000001257 hydrogen Substances 0.000 title claims abstract description 187
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 187
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 185
- 229910052987 metal hydride Inorganic materials 0.000 title claims abstract description 15
- 150000004681 metal hydrides Chemical class 0.000 title claims abstract description 15
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 13
- 239000011777 magnesium Substances 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 86
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 37
- 239000007789 gas Substances 0.000 claims description 21
- 238000003825 pressing Methods 0.000 claims description 19
- 238000005338 heat storage Methods 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 238000010992 reflux Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 16
- 238000010521 absorption reaction Methods 0.000 description 24
- 238000003795 desorption Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- 238000005192 partition Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000011232 storage material Substances 0.000 description 3
- 229910000619 316 stainless steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910012375 magnesium hydride Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C11/00—Use of gas-solvents or gas-sorbents in vessels
- F17C11/005—Use of gas-solvents or gas-sorbents in vessels for hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0302—Heat exchange with the fluid by heating
- F17C2227/0304—Heat exchange with the fluid by heating using an electric heater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0337—Heat exchange with the fluid by cooling
- F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0367—Localisation of heat exchange
- F17C2227/0369—Localisation of heat exchange in or on a vessel
- F17C2227/0376—Localisation of heat exchange in or on a vessel in wall contact
- F17C2227/0381—Localisation of heat exchange in or on a vessel in wall contact integrated in the wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0367—Localisation of heat exchange
- F17C2227/0388—Localisation of heat exchange separate
Abstract
The invention provides a magnesium-based metal hydride solid-state hydrogen storage device, which comprises an outer tank body and an inner tank body, wherein the inner tank body is arranged on the inner side of the outer tank body, hydrogen storage mechanisms are arranged in layers along the inner side of the inner tank body in an axial direction, the hydrogen storage mechanisms comprise a plurality of box-type fin groups internally provided with hydrogen storage press blocks, the heating mechanisms are arranged in a staggered manner with the hydrogen storage mechanisms along the axial direction of the inner tank body and are used for heating the hydrogen storage mechanisms, and the hydrogen passing mechanisms are arranged along the radial direction of the inner tank body and are used for inputting hydrogen into the inner tank body; in addition, the heat recovery mechanism that sets up can absorb the heat that hydrogen in-process released to can flow back to the internal portion of jar, in order to utilize the heat of holding vessel storage.
Description
Technical Field
The invention relates to the technical field of hydrogen storage, in particular to a magnesium-based metal hydride solid-state hydrogen storage device.
Background
The hydrogen energy is highly valued and widely studied in society as clean and efficient secondary energy, and three practical hydrogen storage modes are mainly adopted: high pressure gaseous hydrogen storage, low temperature liquid hydrogen storage, and solid hydrogen storage based on hydrogen storage materials. The disadvantage of high-pressure gaseous hydrogen storage is that on the one hand the high pressure resistance requirement on the hydrogen storage pressure vessel is high, and on the other hand the energy consumption is high in the hydrogen compression process; the disadvantage of low-temperature liquid hydrogen storage is that the multi-stage compression cooling step is needed to liquefy the hydrogen, a large amount of energy is consumed in the process, and meanwhile, the heat insulation performance of the liquid hydrogen storage container is strictly required, namely, the storage container is required to have good heat insulation performance; the physical solid-state hydrogen storage technology has the advantages of high hydrogen storage density, low pressure, good safety, high hydrogen purity and the like, and is an important direction of the development of the hydrogen storage technology. Although the solid-state hydrogen storage technology can realize the adsorption of hydrogen under certain conditions, the hydrogen storage amount is far lower than the level of commercial application at room temperature, and the hydrogen absorption and desorption efficiency is lower in the whole hydrogen absorption and desorption process, so that the commercial application requirements are difficult to meet.
Disclosure of Invention
The invention provides a solid hydrogen storage device which can effectively improve the hydrogen absorption and desorption efficiency, the hydrogen absorption and desorption stability and the hydrogen storage amount of magnesium-based metal hydride and can effectively utilize heat in the hydrogen absorption and desorption process.
In order to solve the technical problems, the invention adopts the following technical scheme:
a solid state hydrogen storage device of magnesium-based metal hydride, comprising an outer tank body, further comprising:
the inner tank body is arranged on the inner side of the outer tank body;
the hydrogen storage mechanism is arranged in a layered manner along the inner axial direction of the inner tank body, and comprises a plurality of box-type fin groups internally provided with hydrogen storage pressing blocks;
the heating mechanism is arranged along the axial direction of the inner tank body in a staggered manner with the hydrogen storage mechanism and is used for heating the hydrogen storage mechanism; and
the hydrogen introducing mechanism is radially arranged along the inner tank body and is used for inputting hydrogen into the inner tank body.
Preferably, the inner wall of the outer tank body is provided with a heat insulation layer attached to the inner tank body, and the top of the outer tank body is also provided with an end cover in a sealing manner.
Preferably, the box type fin group comprises two parallel mounting plates and at least two box type fins which are arranged between the two mounting plates and are axially distributed along the inner tank body, wherein each box type fin comprises a plurality of transverse partition plates which are arranged at intervals in parallel and a plurality of longitudinal partition plates which are arranged at intervals in parallel and are orthogonally distributed with the transverse partition plates, and the transverse partition plates and the longitudinal partition plates form a plurality of storage tanks for accommodating the hydrogen storage pressing blocks.
Preferably, a supporting frame is further arranged between two adjacent box type fin groups, the supporting frame comprises a first contact part connected with one side box type fin and a second contact part connected with the first contact part in a threaded manner and connected with the other side box type fin, and a gap for accommodating a heating mechanism is arranged between the first contact part and the second contact part.
Preferably, the mounting plate of the bottom-most box fin group is provided with a groove, the groove comprises a central groove coaxially arranged with the box fins and an extension groove radially extending along the box fins from the central groove, a protrusion is further arranged between the box fin group and the supporting frame, and the protrusion comprises a central plate coaxially arranged with the box fins and a protrusion part radially extending along the box fins from the central plate.
Preferably, the heating mechanism comprises a heating pipe arranged at a gap between the first contact part and the second contact part and spirally extending along the first contact part and the second contact part, and a fixing frame for fixing the heating pipe to the mounting plate.
Preferably, the hydrogen passing mechanism comprises a hydrogen passing port arranged on the end cover and a hydrogen passing pipeline which axially penetrates through the hydrogen storage mechanism along the inner tank body and is connected with the hydrogen passing port at the top end, and the bottom end is fixedly connected with the bottommost box-type fin group, wherein through holes uniformly distributed along the length direction of the hydrogen passing pipeline are formed in the side wall of the hydrogen passing pipeline.
Preferably, the solid-state hydrogen storage device of magnesium-based metal hydride further comprises a heat recovery mechanism, wherein the heat recovery mechanism comprises a gas pipe communicated with the inner tank body, a conveying pipe arranged at one end of the gas pipe far away from the inner tank body, a storage tank arranged at one end of the conveying pipe far away from the gas pipe, a heat storage component axially arranged along the storage tank and a heat transfer component arranged at the top of the storage tank and connected with the conveying pipe at the output end.
Preferably, the gas-supply pipe is arranged at one end in the inner tank body and is provided with a filter screen, the heat storage component comprises two fixing rings which are arranged on the inner wall of the storage tank in parallel, a heat absorption plate which is uniformly distributed between the two fixing rings along the radial direction of the storage tank and a heat absorption pipe component which is arranged at the top of the heat absorption plate, and the heat absorption pipe component comprises a liquid storage plate which is arranged at the top of the storage tank, an output part which is connected with the output end of the liquid storage plate, a heat absorption pipe which extends from the output part to the outer wall of the heat absorption plate and a reflux part which is arranged at the input end of the liquid storage plate and is connected with the heat absorption pipe.
Preferably, the heat transfer assembly comprises a suction fan arranged at the top of the liquid storage plate, a return pipe arranged at the output end of the suction fan and a buffer tank arranged on the return pipe, wherein the output end of the buffer tank is connected with the conveying pipe.
According to the technical scheme, the invention has the following beneficial effects:
1. according to the invention, a plurality of grid-shaped box type fin groups are arranged in the inner tank body, the box type fin groups are connected through the supporting frame, the heating mechanism is arranged on the supporting frame, the hydrogen passing mechanism passes through the box type fin groups and the supporting frame and is arranged, the hydrogen storage pressing block is arranged in the storage groove of the box type fin, so that under the action of the heating mechanism, the hydrogen storage mechanism is heated uniformly and rapidly, the hydrogen absorption and desorption efficiency can be obviously improved, the hydrogen storage pressing block is formed by mixing and pressing a powdery magnesium hydride hydrogen storage material and natural expanded graphite, the hydrogen storage density of the hydrogen storage pressing block is effectively improved, the powder effect of the hydrogen storage pressing block is lightened and the heat conduction of the material is further improved due to the addition of the natural expanded graphite, and meanwhile, the heating mechanism is arranged between the two box type fin groups in a spiral disc shape, the heating uniformity is further improved, and the hydrogen storage pressing block arranged in the box type fins can obtain higher hydrogen absorption and desorption speed and hydrogen desorption stability.
2. According to the invention, the heat recovery mechanism is communicated with the inner tank body, so that in the hydrogen absorption and desorption process, the heating mechanism is utilized to heat the hydrogen storage mechanism, hydrogen is transmitted through the hydrogen-passing pipeline, when the heat released in the hydrogen absorption process is required to be absorbed, the gas pipe and the conveying pipe can be utilized to convey the heat into the storage tank, the heat storage component is utilized to store the heat, and then the heat stored by the heat storage component is returned to the inner tank body through the return pipe by utilizing the heat transfer component, so that the heat stored by the storage tank is utilized.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the outer tank;
FIG. 3 is a cut-away view of FIG. 1;
FIG. 4 is an exploded axis view of FIG. 2;
FIG. 5 is an exploded cross-sectional view of FIG. 2;
FIG. 6 is a schematic view of a claw disk seat of a hydrogen passage;
FIG. 7 is a schematic view of a box fin bottom protrusion;
FIG. 8 is a box fin grid space schematic;
FIG. 9 is a schematic view of a cassette fin group;
FIG. 10 is an internal schematic view of a box fin;
FIG. 11 is a schematic view of the bottom angle of FIG. 10;
FIG. 12 is a schematic view of a hydrogen feed line;
FIG. 13 is a schematic view of a support frame;
FIG. 14 is a schematic view of a heat recovery mechanism with a storage tank removed;
FIG. 15 is a schematic view of a heat sink assembly connected to a heat sink;
FIG. 16 is a schematic structural view of the heat absorbing plate;
FIG. 17 is a cutaway view of a cache can;
fig. 18 is a schematic structural view of the connection of the heating pipe and the support frame.
In the figure: 10. an outer can; 110. an end cap; 111. a filter sheet; 120. a fixing bolt; 130. an O-shaped sealing ring; 20. an inner tank; 210. an inner cover plate; 220. a heat-insulating cover plate; 30. a hydrogen storage mechanism; 310. a hydrogen storage briquetting; 320. a mounting plate; 330. box type fins; 331. a transverse partition; 332. a longitudinal separator; 340. a groove; 341. a central slot; 342. an epitaxial groove; 350. a protrusion; 351. a center plate; 352. a boss; 40. a heating mechanism; 410. heating pipes; 420. a fixing frame; 421. a buckling part; 422. a fixing part; 50. a hydrogen introducing mechanism; 510. a hydrogen port; 520. a hydrogen-introducing pipeline; 530. a through hole; 540. a claw disc seat; 60. a thermal insulation layer; 70. a support frame; 710. a first contact portion; 711. a first contact pad; 712. a first connection portion; 720. a second contact portion; 721. a second contact pad; 722. a second connecting portion; 723. the auxiliary plate is connected; 80. a heat recovery mechanism; 810. a gas pipe; 811. a two-way valve; 820. a delivery tube; 821. a first one-way valve; 830. a storage tank; 840. a heat storage assembly; 841. a fixing ring; 842. a heat absorbing plate; 850. a heat transfer assembly; 851. a suction fan; 852. a return pipe; 8521. a second one-way valve; 853. a cache tank; 861. a liquid storage plate; 862. an output unit; 863. a heat absorbing pipe; 864. a reflow section; 870. a frame body.
Detailed Description
A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Examples:
referring to fig. 2, 4 and 5, a solid-state hydrogen storage device for magnesium-based metal hydride comprises an outer tank 10, an inner tank 20, a hydrogen storage mechanism 30, a heating mechanism 40 and a hydrogen passing mechanism 50, wherein the inner tank is arranged at the inner side of the outer tank, the hydrogen storage mechanism is axially layered along the inner side of the inner tank 20, the hydrogen storage mechanism comprises a plurality of box-type fin groups internally provided with hydrogen storage pressing blocks 310, the heating mechanism is axially staggered with the hydrogen storage mechanism 30 along the inner tank and is used for heating the hydrogen storage mechanism, the hydrogen passing mechanism is radially arranged along the inner tank 20 and is used for inputting hydrogen into the inner tank, when the solid-state hydrogen storage device is used, the outer tank 10 is manufactured in advance, the inner tank 20 is fixed, the hydrogen passing mechanism 50, the hydrogen storage mechanism 30 and the heating mechanism 40 are sequentially arranged, the inner tank 20 and the outer tank 10 are sealed, hydrogen fed through the hydrogen passing mechanism 50 is stored in the hydrogen storage mechanism 50 under the action of specific temperature and hydrogen pressure, the hydrogen storage mechanism is stored, the hydrogen storage mechanism is released, when the hydrogen is required to release the hydrogen, the hydrogen storage mechanism is heated, and the hydrogen storage mechanism is released, and the working efficiency can be improved when the hydrogen storage mechanism is required to be released, compared with the hydrogen storage mechanism 30.
The outer tank body 10 and the inner tank body 20 are made of 316 stainless steel, and the outer wall of the inner tank body 20 is coated with a heat-insulating coating to perform heat insulation.
Further, in order to improve the heat insulation effect of the inner tank 20, a heat insulation layer 60 attached to the inner tank 20 is provided on the inner wall of the outer tank 10, the heat insulation layer 60 is made of aluminum silicate fiber, but is not limited to aluminum silicate fiber, meanwhile, an inner cover plate 210 is provided on the top of the inner tank 20, and a heat insulation cover plate 220 is provided on the inner cover plate 210, and the heat insulation cover plate 220 can also be made of aluminum silicate fiber and can be combined with the heat insulation layer to realize the heat insulation effect; in addition, an end cover 110 is arranged on the top of the outer tank body in a sealing way, specifically, the end cover 110 can be fixed with the outer tank body 10 through a fixing bolt 120, and a stainless steel metal O-shaped sealing ring 130 is adopted at the sealing position for sealing treatment.
As a preferred embodiment of the present invention, referring to fig. 8, 9 and 10, the hydrogen storage mechanism 30 is composed of a plurality of box fin groups, each box fin group includes a mounting plate 320 and box fins 330, the number of the mounting plates 320 is two, and the two mounting plates 320 are arranged in parallel and spaced, the number of the box fins 330 is at least two, and the box fins 330 are arranged between the two mounting plates and are distributed along the axial direction of the inner tank 20, further, the box fins include a plurality of transverse baffles 331 and a plurality of longitudinal baffles 332, that is, the number of the transverse baffles 331 and the longitudinal baffles 332 are all arranged in parallel and spaced along the inner side wall of the inner tank 20, and the longitudinal baffles 332 are also distributed along the inner side wall of the inner tank 20 and are orthogonal to the transverse baffles 331, so that a honeycomb structure can be formed by using the plurality of transverse baffles 331 and the longitudinal baffles 332, and as the box fins 330 are matched with the inner diameter of the inner tank 20, a storage groove for accommodating the hydrogen-pressing block 310 can be formed in the axial spacing, and each of the box fins can be placed in the inner tank 20, and the hydrogen-pressing block can be heated at a significantly higher rate when placed in the hydrogen-absorbing block mechanism, and the hydrogen storage rate can be heated, and the hydrogen storage rate can be increased significantly, and the hydrogen storage rate can be heated.
In addition, in order to facilitate replacement of the hydrogen storage compact 310 and other components, two symmetrical hanging rings are provided on the top-most mounting plate 320 of the cassette fin group for easy hanging.
The hydrogen storage compact 310 is made of MgH 2 Mixing with natural expanded graphite, and pressing to obtain final product, wherein the addition of natural expanded graphite can further improve heat transfer capacity and increase MgH 2 The hydrogen absorption and desorption rate can be reduced, in addition, the hydrogen absorption and desorption stress can be reduced, the expansion and pulverization of the hydrogen storage pressing blocks can be prevented, the mixed material is pressed into small pressing blocks with phi of 5 multiplied by 5mm, and the small pressing blocks are placed in the storage grooves of the box-type fins, 7 pressing blocks can be placed in each storage groove, so that 2800 hydrogen storage pressing blocks 310 can be placed in each box-type fin, and the total of 25Kg of hydrogen storage material can provide 1.5Kg of hydrogen.
Further for facilitating the installation of the box fin groups, referring to fig. 13, a supporting frame 70 is further provided between two adjacent box fin groups, the supporting frame comprises a first contact portion 710 and a second contact portion 720, the first contact portion 710 is connected with the box fin to be connected on one side, the second contact portion 720 is in threaded connection with the first contact portion and is connected with the box fin to be connected on the other side, a gap for accommodating the heating mechanism 40 is provided between the first contact portion 710 and the second contact portion 720, specifically, the first contact portion 710 comprises a first contact disc 711 and a first connecting portion 712, the first contact disc 711 is disc-shaped, the first connecting portion 712 is cylindrical and is integrally formed with the first contact disc 711, the cross section of the second contact portion 720 is in an i shape, the supporting frame comprises a second contact disc 721, a second connecting portion 722 and a connecting auxiliary disc 723, the second contact disc 721, the second connecting portion 722 and the connecting auxiliary disc 723 are integrally formed, the second contact disc 721 and the connecting auxiliary disc 723 are arranged at two ends of the second connecting portion 722, when in use, the second contact portion 710 and the first connecting portion 723 are in threaded connection with the first connecting portion 722, and the first connecting portion 722 are arranged in order to realize the inner-side connection, the first contact portion and the first connecting portion and the second connecting portion 722 are in a threaded connection portion, the inner portion and the threaded connection portion is conveniently arranged. The hydrogen absorbing and releasing process is carried out at a specific temperature and hydrogen pressure, so that the heating mechanism needs to be fixed, and the heating mechanism can be arranged in the gap through the bracket because the gap is reserved between the first contact disc 711 and the second contact disc 721, so that the heating mechanism is fixed, and the box-type fins can be heated stably.
In order to facilitate the hydrogen absorption and desorption of the hydrogen storage mechanism 30, holes for the hydrogen passage mechanism 50 to pass through are formed in the first contact plate 711 and the first connection portion 712, so that the hydrogen gas can enter and exit the hydrogen passage mechanism 50.
As a preferred solution of the present invention, referring to fig. 7 and 11, the mounting plate 320 of the bottom-most box fin group is provided with a groove 340, specifically, the groove includes a central groove 341 and an extension groove 342, the central groove 341 is coaxially disposed with the box fin 330, the extension groove 342 extends radially from the central groove along the box fin 330, the purpose of the groove 340 is to fix the bottom-most box fin group with the bottom end of the hydrogen passage mechanism 50, so that, in use, the groove 340 can be used to fix the box fin group that is first placed at the bottom of the inner can 20, and a protrusion 350 is further disposed between the additional box fin group and the support frame 70, specifically, the protrusion 350 is disposed on the mounting plate 320, the protrusion comprises a central disc 351 and a protrusion 352, the central disc 351 and the box fins 330 are coaxially arranged, the protrusion 352 radially extends from the central disc along the box fins 330, and correspondingly, a groove body matched with the protrusion 350 is arranged at the top end of the support frame 70, namely the top of the first contact disc 711, so that after the installation and fixation of the box fin group at the bottommost end are completed, the support frame 70 and the box fin group can be sequentially placed in the inner tank body 20 in a spaced mode, and the stable installation of the box fin group and the support frame 70 is realized by utilizing the mode that the protrusion 350 is matched with the groove body, so that adverse effects on the hydrogen absorption and desorption process due to the instability of the box fin group are prevented, and the hydrogen absorption and desorption efficiency is influenced.
As a preferred solution of the present invention, referring to fig. 18, the heating mechanism 40 includes a heating tube 410 and a fixing frame 420, the heating tube 410 is disposed at a gap between the first contact portion 710 and the second contact portion 720 and extends spirally along the first contact portion 710 and the second contact portion 720, specifically, when the first connection portion 712 is connected with the second connection portion 722, a gap is left between the first contact portion 710 and the second contact portion 720, the gap is used for placing the heating tube 410, that is, the heating tube 410 is spirally wound around the gap, and meanwhile, for fixing the heating tube 410, the fixing frame 420 may be further provided to fix the heating tube 410 on the mounting plate 320, specifically, the fixing frame 420 includes a fastening portion 421 sleeved on an outer wall of the heating tube 410 and a fixing portion 422 fixedly connected with the fastening portion 421 and fixed on the mounting plate 320 by a fastener such as a screw, and when in use, the heating tube 410 is fastened inside the fastening portion 421 and the top of the mounting plate 320 is fixed by the fixing portion 422.
Further, the heating mechanism 40 further includes a heat sensitive probe for detecting the temperature of the hydrogen storage mechanism so as to bring the hydrogen absorption and desorption temperature within a proper range.
As a preferred technical solution of the present invention, referring to fig. 4, 6 and 12, the hydrogen passing mechanism 50 includes a hydrogen passing port 510 and a hydrogen passing pipe 520, the hydrogen passing port 510 is disposed on the end cover 110, and is used for passing hydrogen into or discharging hydrogen from the inner tank 20, and simultaneously, in order to effectively prevent powder formed after pulverization of the hydrogen storage block from flowing out along with the hydrogen, a filter sheet 111 is welded at the hydrogen passing port 510 of the end cover 110, the filter sheet 111 is made of 316 stainless steel, the hydrogen passing pipe 520 axially passes through the hydrogen storage mechanism 30 along the inner tank 20, and the top end of the hydrogen passing pipe 520 is connected with the hydrogen passing port 510, and the bottom end is fixedly connected with the bottom end of the box-type fin group, wherein, in order to further improve the connection effect of the hydrogen passing pipe 520 and the box-type fin group, a tray seat 540 is disposed at the bottom end of the hydrogen passing pipe, and the groove 340 is matched, thereby realizing the fixation of the bottom end of the hydrogen passing pipe 520.
In the present invention, the hydrogen passage 520 is started from the end cover, i.e. the top end is connected with the hydrogen passage 510 on the end cover, the middle shaft is connected with the box type fin group, and the bottom end is connected with the mounting plate 320 of the box type fin group at the bottom end, so that the fixing stability of the hydrogen passage 520 can be improved, and in the hydrogen absorption process, hydrogen enters the inner tank 20 through the hydrogen passage 510, the hydrogen passage 520 and the through hole 530 and reacts with the hydrogen storage block to realize storage, and in the hydrogen release process, the hydrogen stored in the hydrogen storage block is discharged out of the inner tank 20 through the through hole 530, the hydrogen passage 520 and the hydrogen passage 510.
As a preferred technical solution of the present invention, referring to fig. 1 and 3, the solid-state hydrogen storage device for magnesium-based metal hydride further comprises a heat recovery mechanism 80, the heat recovery mechanism comprises a gas pipe 810, a delivery pipe 820, a storage tank 830, a heat storage component 840 and a heat transfer component 850, the gas pipe 810 is connected with the inner tank 20, so that heat in the inner tank 20 can be delivered into the storage tank 830 to store the heat, the delivery pipe 820 is arranged at one end of the gas pipe 810 far from the inner tank 20, the storage tank 830 is arranged at one end of the delivery pipe 820 far from the gas pipe 810, the heat storage component 840 is axially arranged inside the storage tank along the storage tank, the heat transfer component 850 is arranged at the top of the storage tank and the output end is connected with the delivery pipe 820, and when in use, because the hydrogen storage mechanism reacts at a specific temperature, such as 300-400 ℃ and a specific hydrogen pressure, such as 2.4-MPa, to generate metal hydride when hydrogen is absorbed, while releasing heat, in the hydrogen release process, a heating mechanism is required to heat the hydrogen storage mechanism to release hydrogen by decomposing metal hydride, so that an additional heat recovery mechanism can be considered to be arranged outside the outer tank 10, the heat released by the reaction in the hydrogen release process can be absorbed by utilizing the heat recovery mechanism 80, so that the heat can be conveniently and repeatedly conveyed into the inner tank 20 during the hydrogen release process to heat the hydrogen storage mechanism, the hydrogen release efficiency is improved, the gas pipe 810 is communicated with the inner tank 20, specifically, the gas pipe 810 can be arranged corresponding to the supporting frame 70, so that the redundant heat in the inner tank 20 can be conveniently absorbed to the conveying pipe 820, further, in order to improve the heat absorption effect, a fan can be arranged on the conveying pipe 820, and likewise, in order to avoid the pulverization of the hydrogen storage blocks in the inner tank 20 and then discharge the inner tank 20 along with the heat, the filter screen is arranged at one end of the gas pipe 810 arranged in the inner tank body 20, the filter screen is a stainless steel sintered body and can be manufactured by adopting a powder metallurgy method, so that heat in the inner tank body 20 is conveyed into the storage tank 830 for storage through the gas pipe 810 and the conveying pipe 820, and is particularly stored in the heat storage assembly 840, heat can be collected, and when the heat in the storage tank 830 is required to be utilized, the heat transfer assembly 850 can be utilized to convey the heat outwards, so that the full utilization of the heat is realized.
In order to improve the heat storage effect, referring to fig. 14 and 16, the heat storage assembly 840 includes two fixing rings 841, heat absorbing plates 842 and heat absorbing pipe assemblies, the two fixing rings 841 are disposed on the inner wall of the storage tank in parallel and spaced apart, the heat absorbing plates 842 are radially and uniformly distributed along the storage tank 830 and are disposed between the two fixing rings 841, in order to improve the fixing effect on the heat absorbing plates 842, the heat storage assembly 840 further includes a frame 870 for fixing the heat absorbing plates 842, the frame 870 is specifically in a rectangular hollow structure, the heat absorbing plates 842 are clamped in the frame 870, further, in order to improve the fixing effect between the heat absorbing plates 842 and the frame 870, a buckle for fixing the heat absorbing plates 842 is further disposed on the frame 870, the heat absorbing pipe assemblies are disposed on the top of the heat absorbing plates 842, further, the heat absorbing pipe assemblies include a liquid storage plate 861, an output portion 862, a heat absorbing pipe 863 and a backflow portion 864, the liquid storage plate 861 is disposed at the top of the storage tank 830, a liquid inlet and a liquid outlet are disposed on the liquid storage plate 861, and the liquid storage plate 861 stores therein heat absorbing liquid, the output part 862 is connected to the output end of the liquid storage plate, in particular, the output part 862 may be annular so that the heat absorbing liquid enters the output part 862 through the liquid outlet, the heat absorbing pipe 863 extends from the output part to the outer wall of the heat absorbing plate 842, in particular, one end of the heat absorbing pipe 863 is connected to the output part 862 and extends along the side wall of the frame 870 to form an annular structure, the other end is connected to the reflux part 864, the reflux part 864 is disposed at the input end of the liquid storage plate 861, the reflux part 864 may also be annular so that the heat absorbing liquid is convenient to return to the liquid storage plate 861 again through the reflux part 864, in this way, the heat absorbing liquid in the liquid enters the output part 862 through the liquid outlet and flows into the heat absorbing pipe 863 so that the heat in the heat absorbing plate 842, the heat absorbing liquid that absorbs heat enters the return portion 864 and finally returns to the liquid storage plate 861, so that the heat absorbing liquid can circulate along the liquid inlet, the liquid storage plate and the liquid outlet, thereby absorbing the heat stored in the heat absorbing plate 842 to absorb the heat into the liquid storage plate 861.
Further, referring to fig. 15 and 17, the heat transfer assembly includes a suction fan 851, a return pipe 852 and a buffer tank 853, where the suction fan 851 is disposed at the top of the liquid storage plate 861, and may be fixed on the fixing ring 841, the return pipe 852 is disposed at the output end of the suction fan 851, the buffer tank 853 is disposed on the return pipe, a filter screen is disposed in the buffer tank 853, and the output end of the buffer tank is connected to the conveying pipe 820, and when the liquid storage plate 861 absorbs heat from the heat storage plate and needs to utilize the heat, the heat can be absorbed by the suction fan 851, and enters the buffer tank 853 through the return pipe 852, and finally flows back to the conveying pipe 820 through the buffer tank 853, so as to be utilized in the inner tank 20 through the conveying pipe 820.
Further, a filter screen, which is also a stainless steel sintered body and can be manufactured by adopting a powder metallurgy method, is further arranged in the buffer tank 853, and is used for filtering the gas entering the conveying pipe so as to avoid adverse effect on the hydrogen storage mechanism in the inner tank body 20.
Further, in order to improve the efficiency of heat flow, a first check valve 821 is provided on the transfer pipe 820 at a side close to the storage tank 830, a second check valve 8521 is provided on the return pipe 852, and a two-way valve 811 is provided on the gas pipe 810, so that when the heat of the inner tank 20 is transferred to the storage tank 830, the two-way valve 811 is opened, the heat flows along the inner tank-gas pipe-transfer pipe-storage tank to achieve heat storage, and when the heat in the storage tank needs to be utilized, the heat flows along the buffer tank-return pipe-transfer pipe-gas pipe-inner tank.
In the invention, the outer tank 10 is prefabricated, the heat insulation layer 60 and the inner tank 20 are mounted and fixed, the hydrogen storage pressing block 310 is mounted in the storage tank of the box type fins 330, then the box type fins and the support frame 70 are mounted on the hydrogen pipeline 520, the box type fins and the support frame 70 are arranged in the inner tank 20 in a spaced mode, the heating pipe 410 is arranged on the periphery of the support frame 70 in the process of mounting the support frame 70, the inner tank 20 is mounted, the inner cover plate 210 is arranged on the top of the inner tank 20, the heat preservation cover plate 220 is mounted on the inner cover plate 210, so as to realize the sealing of the inner tank 20, the end cover 110 is welded on the top of the outer tank 10 and sealed by a sealing ring, finally the outer tank 10 and the end cover 110 are connected by the fixing bolts 120, and the heat recovery mechanism 80 is arranged on the outer side of the outer tank 10 and communicated with the inner tank 20.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. A solid state hydrogen storage device of magnesium-based metal hydride, comprising an outer tank (10), characterized in that it further comprises:
an inner tank (20) disposed inside the outer tank;
the hydrogen storage mechanism (30) is axially layered along the inner side of the inner tank body (20) and comprises a plurality of box-type fin groups internally provided with hydrogen storage pressing blocks (310);
the heating mechanism (40) is arranged along the axial direction of the inner tank body in a staggered manner with the hydrogen storage mechanism (30) and is used for heating the hydrogen storage mechanism; and
and the hydrogen introducing mechanism (50) is radially arranged along the inner tank body (20) and is used for inputting hydrogen into the inner tank body.
2. The solid hydrogen storage device of magnesium-based metal hydride according to claim 1, wherein the inner wall of the outer tank body (10) is provided with a heat insulation layer (60) attached to the inner tank body (20), and the top of the outer tank body is further provided with an end cover (110) in a sealing manner.
3. The solid state hydrogen storage device of magnesium based metal hydride according to claim 2, wherein the box fin group comprises two parallel arranged mounting plates (320) and at least two box fins (330) arranged between the two mounting plates and axially distributed along the inner tank body (20), the box fins comprising a plurality of parallel spaced transverse baffles (331) and a plurality of parallel spaced longitudinal baffles (332) arranged orthogonal to the transverse baffles (331), wherein the transverse baffles (331) and the longitudinal baffles (332) form a plurality of storage tanks for receiving hydrogen storage compacts (310).
4. A solid state hydrogen storage device as claimed in claim 3, wherein a support frame (70) is further provided between two adjacent cassette fin groups, the support frame comprising a first contact portion (710) connected to one cassette fin and a second contact portion (720) screwed to the first contact portion and connected to the other cassette fin, a gap for accommodating the heating mechanism (40) being provided between the first contact portion (710) and the second contact portion (720).
5. The solid hydrogen storage device as claimed in claim 4, wherein a groove (340) is provided in a mounting plate (320) of a lowermost cassette fin group, the groove including a central groove (341) provided coaxially with the cassette fins (330) and an extension groove (342) extending radially from the central groove along the cassette fins (330), a projection (350) is further provided between the cassette fin group and the support frame (70), the projection including a central plate (351) provided coaxially with the cassette fins (330) and a projection (352) extending radially from the central plate along the cassette fins (330).
6. The solid state hydrogen storage device of claim 4, wherein said heating mechanism (40) comprises a heating tube (410) disposed at a gap between the first contact portion (710) and the second contact portion (720) and extending helically along the first contact portion (710) and the second contact portion (720), and a fixing frame (420) for fixing the heating tube to the mounting plate (320).
7. The solid hydrogen storage device as claimed in claim 6, wherein the hydrogen-introducing mechanism (50) comprises a hydrogen-introducing port (510) formed in the end cover (110), and a hydrogen-introducing pipe (520) axially penetrating the hydrogen storage mechanism (30) along the inner tank body (20) and having a top end connected to the hydrogen-introducing port (510) and a bottom end fixedly connected to the bottommost box-type fin group, wherein through holes (530) are uniformly distributed in a length direction of the hydrogen-introducing pipe on a side wall.
8. The solid state hydrogen storage device of claim 7, further comprising a heat recovery mechanism (80) comprising a gas pipe (810) in communication with the inner vessel (20), a delivery pipe (820) disposed at an end of the gas pipe (810) remote from the inner vessel (20), a storage tank (830) disposed at an end of the delivery pipe (820) remote from the gas pipe (810), a heat storage assembly (840) disposed axially along the storage tank, and a heat transfer assembly (850) disposed at a top of the storage tank and having an output end connected to the delivery pipe (820).
9. The solid-state hydrogen storage device as claimed in claim 8, wherein the gas pipe (810) is disposed at one end of the inner tank body (20) and is provided with a filter screen, the heat storage assembly (840) comprises two fixing rings (841) disposed in parallel on an inner wall of the storage tank, heat absorbing plates (842) radially and uniformly distributed between the two fixing rings (841) along the storage tank (830), and a heat absorbing pipe assembly disposed at a top of the heat absorbing plates (842), the heat absorbing pipe assembly comprises a liquid storage plate (861) disposed at the top of the storage tank (830), an output part (862) connected with an output end of the liquid storage plate, a heat absorbing pipe (863) extending from the output part to an outer wall of the heat absorbing plate (842), and a reflux part (864) disposed at an input end of the liquid storage plate (861) and connected with the heat absorbing pipe (863).
10. The solid state hydrogen storage device of magnesium based metal hydride according to claim 9, wherein the heat transfer assembly comprises a suction fan (851) arranged at the top of the liquid storage plate (861), a return pipe (852) arranged at the output end of the suction fan (851), and a buffer tank (853) arranged on the return pipe, wherein the output end of the buffer tank is connected with the conveying pipe (820).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310989022.4A CN117028837A (en) | 2023-08-08 | 2023-08-08 | Solid-state hydrogen storage device of magnesium-based metal hydride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310989022.4A CN117028837A (en) | 2023-08-08 | 2023-08-08 | Solid-state hydrogen storage device of magnesium-based metal hydride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117028837A true CN117028837A (en) | 2023-11-10 |
Family
ID=88634704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310989022.4A Withdrawn CN117028837A (en) | 2023-08-08 | 2023-08-08 | Solid-state hydrogen storage device of magnesium-based metal hydride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117028837A (en) |
-
2023
- 2023-08-08 CN CN202310989022.4A patent/CN117028837A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6709497B2 (en) | Honeycomb hydrogen storage structure | |
| US7431756B2 (en) | Modular metal hydride hydrogen storage system | |
| US7947119B2 (en) | Hydrogen reservoir and process for filling a hydrogen reservoir | |
| US9409126B2 (en) | Apparatuses and methods for storing and/or filtering a substance | |
| US20030209149A1 (en) | Honeycomb hydrogen storage structure | |
| US6708546B2 (en) | Honeycomb hydrogen storage structure with restrictive neck | |
| CN116357886B (en) | Foam metal hydrogen storage bottle for heat pipe heat exchange and heat transfer method | |
| JP2013503310A (en) | Apparatus and method for storing and / or filtering substances | |
| WO2009070090A1 (en) | Thermal solar energy collector for producing heat and/or cooling | |
| CN103240037A (en) | Oval spiral tube type micro-channel gas-solid phase reactor | |
| US20140238634A1 (en) | Reversible metal hydride thermal energy storage systems, devices, and process for high temperature applications | |
| CN106594518A (en) | Metal hydride hydrogen storage device with efficient heat exchange effect | |
| RU81568U1 (en) | HYDROGEN EXTERNAL SURFACE METAL HYDROGEN CARTRIDGE | |
| CN107202245B (en) | A kind of hydrogen storing apparatus of metal hydrides and working method | |
| CN108240552B (en) | Quick-response hydrogen storage tank and manufacturing method thereof | |
| CN107289803B (en) | A kind of reactor for hydrated salt chemical energy storage | |
| CN117028837A (en) | Solid-state hydrogen storage device of magnesium-based metal hydride | |
| CN114636091A (en) | Solid-state hydrogen storage tank of circulation type heat transfer | |
| CN101235937A (en) | Metal hydride hydrogen-storing device and its preparation method | |
| JP2000111193A (en) | Hydrogen occlusion alloy heat exchanger | |
| CN220957921U (en) | Jacket heat exchange type hydrogen storage and release device | |
| CN117267611A (en) | Efficient and uniform reaction metal hydride hydrogen storage bottle and use method thereof | |
| CN216850012U (en) | All-weather quick response solid hydrogen storage device for fuel cell | |
| CN114352924B (en) | Diffusion type hydrogen storage bottle | |
| CN219493819U (en) | Porous graphite grid temperature regulation and control metal hydrogen storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20231110 |