CN218819612U - Novel spiral pipe phase change metal hydride hydrogen storage tank - Google Patents
Novel spiral pipe phase change metal hydride hydrogen storage tank Download PDFInfo
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- CN218819612U CN218819612U CN202223118219.0U CN202223118219U CN218819612U CN 218819612 U CN218819612 U CN 218819612U CN 202223118219 U CN202223118219 U CN 202223118219U CN 218819612 U CN218819612 U CN 218819612U
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- hydrogen storage
- heat exchange
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- exchange tube
- phase change
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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Abstract
The utility model discloses a novel spiral pipe phase transition metal hydride hydrogen storage tank relates to metal hydride hydrogen storage tank structural design field, including the hydrogen storage bed that stores up hydrogen alloy casing cladding, hydrogen storage alloy casing periphery is provided with the stainless steel cladding, cavity packing between stainless steel cladding and the hydrogen storage alloy casing has phase change material, still includes a plurality of roots and inverts the U-shaped pipe in hydrogen storage tank top, the both ends of U-shaped pipe all link there is the spiral heat exchange tube, and the spiral heat exchange tube that U-shaped pipe both ends are connected runs through respectively and stores up hydrogen bed and phase change material, and the lower extreme of spiral heat exchange tube communicates mutually through the power pump. The heat exchange tube design penetrating through the hydrogen storage bed and the phase-change material increases the heat exchange path of the hydrogen storage bed and the phase-change material, and ensures the heat exchange efficiency; meanwhile, the phase-change material can directly absorb the heat which is indirectly absorbed through the heat exchange tube and can also be stored, so that energy conservation and emission reduction are realized.
Description
Technical Field
The utility model relates to a metal hydride hydrogen storage tank structural design field, concretely relates to novel spiral pipe phase transition metal hydride hydrogen storage tank.
Background
The metal hydride hydrogen storage tank is a common hydrogen energy hydrogen storage tank, and has many advantages such as large hydrogen storage amount per unit volume, high safety performance and the like compared with gaseous hydrogen storage and liquid hydrogen storage. However, the metal hydride has a large reaction heat effect in the hydrogen absorption and desorption processes, so that a metal hydride hydrogen storage tank with high heat exchange efficiency needs to be designed.
In the prior art, a heat exchange tube is usually adopted or a phase change material layer is arranged on the periphery of a hydrogen storage tank for heat exchange, the heat exchange tube can be in direct contact with a hydrogen storage substance, the heat exchange efficiency is high, but the heat exchange quantity is difficult to store, and great heat waste exists; and set up the phase change material layer in hydrogen storage tank periphery, though can store the heat of exchange, its area of contact with the hydrogen storage material is less relatively, and heat exchange efficiency is difficult to guarantee.
Therefore, it is necessary to design a hydrogen storage tank which can not only ensure heat exchange efficiency but also store the exchanged energy to realize energy conservation and emission reduction for the prior art.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem among the prior art, the utility model provides a novel spiral pipe phase transition metal hydride hydrogen storage tank to solve prior art and can't satisfy heat exchange efficiency, energy saving and emission reduction's technical problem simultaneously.
The utility model adopts the technical scheme as follows:
the utility model provides a novel spiral pipe phase transition metal hydride stores up hydrogen tank, includes the hydrogen storage bed of hydrogen storage alloy casing cladding, hydrogen storage alloy casing periphery is provided with the stainless steel cladding, the cavity packing between stainless steel cladding and the hydrogen storage alloy casing has phase change material, still includes a plurality of roots and inverts the U-shaped pipe in hydrogen storage tank top, the both ends of U-shaped pipe all link there is the spiral heat exchange tube, and the spiral heat exchange tube that U-shaped pipe both ends are connected runs through hydrogen storage bed and phase change material respectively, and the lower extreme of spiral heat exchange tube communicates through power pump mutually.
Preferably, adjacent different spiral layer tube bodies of the spiral heat exchange tube are communicated through a straight tube, and the middle position of the straight tube passes through the central axis of the spiral heat exchange tube or is close to the central axis of the spiral heat exchange tube.
Preferably, the same spiral layer of the spiral heat exchange tube is provided with two straight tubes respectively connected with the upper spiral layer and the lower spiral layer, and the two straight tubes are arranged in a staggered manner.
Preferably, the lower end of the heat exchange pipe is also connected with a condenser and a heater.
To sum up, compare in prior art, the utility model has the advantages of as follows and beneficial effect:
the heat exchange tube design penetrating through the hydrogen storage bed and the phase-change material increases the heat exchange path of the hydrogen storage bed and the phase-change material, and ensures the heat exchange efficiency; simultaneously, phase change material direct absorption has also can be preserved through the indirect heat absorption of heat exchange tube, has realized energy saving and emission reduction, consequently, the utility model provides a technical scheme can satisfy heat exchange efficiency, energy saving and emission reduction's technical problem simultaneously.
The utility model discloses still increased the straight tube that transversely runs through the interior material of spiral tube on current spiral heat exchange tube's basis, put the hottest position in the material center, pointed to increased heat transfer area, played the effect that makes a result the half a effort doubly.
Drawings
Fig. 1 is a schematic structural view of a hydrogen storage tank provided by the present invention;
fig. 2 isbase:Sub>A schematic sectional view ofbase:Sub>A hydrogen storage tankbase:Sub>A-base:Sub>A provided in example 1;
FIG. 3 isbase:Sub>A schematic sectional view ofbase:Sub>A hydrogen storage tank A-A provided in example 2;
FIG. 4 is a top view of a first embodiment of a spiral-straight tube;
FIG. 5 is a top view of a second embodiment of a spiral-straight tube;
the labels in the figure are respectively: 1. a hydrogen storage bed; 2. a U-shaped conduit; 21. a spiral heat exchange tube; 22. a straight pipe; 3. a phase change material; 4. a stainless steel can; 5. a hydrogen storage alloy shell.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, i.e., the described embodiments are merely illustrative of some, but not all, of the embodiments of the invention.
The utility model discloses in, phase change material does: liNO 3 The heat exchange medium in the heat exchange tube is as follows: and (3) water.
Fig. 1 combines as shown in fig. 2, does the utility model provides a hydrogen storage tank, including the hydrogen storage bed 1 of the 5 claddings of hydrogen storage alloy casing, hydrogen storage alloy casing 5 periphery is provided with stainless steel cladding 4, cavity packing between stainless steel cladding 4 and the hydrogen storage alloy casing 5 has phase change material 3, still includes a plurality of roots and inverts U-shaped pipe 2 in the hydrogen storage tank top, the both ends of U-shaped pipe 2 all link to have spiral heat exchange tube 21, and the spiral heat exchange tube 21 that 2 both ends of U-shaped pipe are connected runs through respectively and stores up hydrogen bed 1 and phase change material 3, the lower extreme of spiral heat exchange tube 21 communicates through the power pump mutually.
The number of the U-shaped conduits 2 is preferably 6 to 12, and the conduits are uniformly distributed in a ring shape, in consideration of the actual size of the tank.
Example 1
As shown in fig. 2,base:Sub>A schematic sectional viewbase:Sub>A-base:Sub>A of one specific embodiment of the hydrogen storage tank is provided for this example.
In this embodiment, all spiral heat exchange tubes 21 are the spiral pipe, compare in the straight tube, and the spiral pipe that this embodiment set up, the area of contact with heat transfer medium is bigger, more can guarantee heat exchange efficiency.
Example 2
As shown in fig. 3,base:Sub>A schematic cross-sectional viewbase:Sub>A-base:Sub>A of another embodiment of the hydrogen storage tank is provided for this example.
In this embodiment, a straight tube 22 is additionally disposed on the spiral heat exchange tube 21, the middle portions of different layers of the spiral tube are connected by the straight tube 22, and the middle position of the straight tube 22 passes through the central axis of the spiral heat exchange tube 21 or the central axis close to the spiral heat exchange tube 21. In this embodiment, two straight pipes 22 respectively connecting the upper spiral layer and the lower spiral layer are disposed on the same spiral layer of the spiral heat exchange pipe 21, and the two straight pipes 22 are disposed in a staggered manner. One such arrangement is shown in FIG. 4, where the two straight tubes 22 are parallel, but not centered on the central axis; another arrangement is shown in fig. 5, where two straight tubes 22 are overlapped, both passing through the central axis.
The effective heat exchange area is increased at the position with the highest heat in a targeted manner, so that the heat exchange efficiency can be obviously improved, and compared with the embodiment, the heat exchange efficiency can be improved by at least 20-40%.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (4)
1. The utility model provides a novel spiral pipe phase transition metal hydride stores up hydrogen jar, includes the hydrogen storage bed of hydrogen storage alloy casing cladding, hydrogen storage alloy casing periphery is provided with the stainless steel cladding, the cavity between stainless steel cladding and the hydrogen storage alloy casing is filled there is phase change material, its characterized in that still includes a plurality of U-shaped pipes of invering in hydrogen storage jar top, the both ends of U-shaped pipe all link there is the spiral heat exchange tube, and the spiral heat exchange tube that U-shaped pipe both ends are connected runs through hydrogen storage bed and phase change material respectively, and the lower extreme of spiral heat exchange tube communicates through the power pump mutually.
2. A novel spiral tube phase change metal hydride hydrogen storage tank as claimed in claim 1, wherein adjacent different spiral layer tubes of the spiral heat exchange tube are communicated through a straight tube, and the middle position of the straight tube passes through the central axis of the spiral heat exchange tube or is close to the central axis of the spiral heat exchange tube.
3. A novel spiral tube phase change metal hydride hydrogen storage canister as claimed in claim 2, wherein the same spiral layer of the spiral heat exchange tube is provided with two straight tubes respectively connected with the upper and lower spiral layers, and the two straight tubes are arranged in a staggered manner.
4. A novel spiral tube phase change metal hydride hydrogen storage canister as claimed in claim 1, wherein a condenser and a heater are further connected to the lower end of said heat exchange tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223118219.0U CN218819612U (en) | 2022-11-23 | 2022-11-23 | Novel spiral pipe phase change metal hydride hydrogen storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223118219.0U CN218819612U (en) | 2022-11-23 | 2022-11-23 | Novel spiral pipe phase change metal hydride hydrogen storage tank |
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| Publication Number | Publication Date |
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| CN218819612U true CN218819612U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223118219.0U Active CN218819612U (en) | 2022-11-23 | 2022-11-23 | Novel spiral pipe phase change metal hydride hydrogen storage tank |
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| CN (1) | CN218819612U (en) |
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2022
- 2022-11-23 CN CN202223118219.0U patent/CN218819612U/en active Active
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