CN115810770A - System for heating solid hydrogen storage bottle by utilizing waste heat - Google Patents
System for heating solid hydrogen storage bottle by utilizing waste heat Download PDFInfo
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- CN115810770A CN115810770A CN202211493851.5A CN202211493851A CN115810770A CN 115810770 A CN115810770 A CN 115810770A CN 202211493851 A CN202211493851 A CN 202211493851A CN 115810770 A CN115810770 A CN 115810770A
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Abstract
The invention provides a system for heating a solid hydrogen storage bottle by utilizing waste heat, which comprises the solid hydrogen storage bottle, an air-cooled hydrogen fuel pile, a fan, a box body and an air duct clapboard, wherein a first air port and a second air port are reserved in the box body, the first air port of the box body is connected with an air outlet of the fan, the air-cooled hydrogen fuel pile is connected with an air inlet of the fan, the air duct clapboard is arranged between the outer wall of the solid hydrogen storage bottle and the side wall of the box body, air flows through the air-cooled hydrogen fuel pile and the box body under the action of the fan, the air absorbs the waste heat of the air-cooled hydrogen fuel pile to form hot air, and the hot air flows through the box body to heat the solid hydrogen storage bottle. The system heats the solid hydrogen storage bottle by utilizing waste heat generated when the air-cooled hydrogen fuel pile works, so that the energy efficiency utilization is improved. The air duct partition plate is arranged to prolong the retention time of hot air in the box body, and improve heat transfer. By adding the heat conduction fins, the heat transfer effect is improved.
Description
Technical Field
The invention relates to the technical field of hydrogen storage, in particular to a system for heating a solid hydrogen storage bottle by utilizing waste heat.
Background
The solid hydrogen storage bottle stores hydrogen, and when the hydrogen is released from the hydrogen storage alloy, the alloy needs to continuously absorb external heat through the bottle body. If no external heat source is used for continuously heating the bottle body, the surface temperature of the hydrogen bottle and the ambient temperature are quickly reduced, and the low temperature prevents the solid hydrogen storage bottle from further discharging hydrogen.
In the prior art, a thermocouple is mostly adopted to heat a bottle body of the solid hydrogen storage bottle, or an electric heating wire is adopted to heat natural wind, then the heated wind is used to heat the solid hydrogen storage bottle, both the solid hydrogen storage bottle and the electric heating wire need to consume certain extra electric energy, and the energy efficiency utilization is very low.
Therefore, a system for utilizing waste heat to heat a solid-state hydrogen storage cylinder is needed.
Disclosure of Invention
The invention aims to provide a system for heating a solid hydrogen storage bottle by utilizing waste heat, which heats the solid hydrogen storage bottle by utilizing the waste heat generated by an air-cooled hydrogen fuel galvanic pile, so that the solid hydrogen storage bottle can continuously discharge hydrogen, and the energy efficiency utilization is greatly improved.
In order to achieve the above purpose, the invention provides the following technical scheme:
a system for heating a solid hydrogen storage bottle by utilizing waste heat comprises the solid hydrogen storage bottle, an air-cooled hydrogen fuel pile, a fan, a box body and an air duct partition plate, wherein the solid hydrogen storage bottle is arranged in the box body, a first air port and a second air port are reserved in the box body, the first air port of the box body is connected with an air outlet of the fan, the air-cooled hydrogen fuel pile is connected with an air inlet of the fan, the air duct partition plate is arranged between the outer wall of the solid hydrogen storage bottle and the side wall of the box body, air flows through the air-cooled hydrogen fuel pile and the box body under the action of the fan, absorbs the waste heat of the air-cooled hydrogen fuel pile to form hot air, and the hot air flows through the box body to heat the solid hydrogen storage bottle.
Further, in the above system for heating the solid hydrogen storage bottle by using waste heat, the box body includes a first side wall, a second side wall, a third side wall and a fourth side wall which are connected in sequence, the first air port is arranged at the lower part of the first side wall, the second air port is arranged at the lower part of the third side wall, and the two solid hydrogen storage bottles are respectively a first solid hydrogen storage bottle and a second solid hydrogen storage bottle.
Further, in the above system for heating the solid hydrogen storage bottles by using the waste heat, the first solid hydrogen storage bottle and the second solid hydrogen storage bottle are arranged in a close manner, the two air duct partition plates are respectively a first air duct partition plate and a second air duct partition plate, the first air duct partition plate is arranged between the outer wall of the first solid hydrogen storage bottle and the second side wall of the box body, the second air duct partition plate is arranged between the outer wall of the second solid hydrogen storage bottle and the fourth side wall of the box body, the lower end of the first air duct partition plate is connected with the bottom plate of the box body, the upper end of the first air duct partition plate is not connected with the top plate of the box body, the lower end of the second air duct partition plate is connected with the bottom plate of the box body, the upper end of the second air duct partition plate is not connected with the top plate of the box body, and the spaces on two sides of the first air duct partition plate and the second air duct partition plate are communicated and form a channel for hot air to circulate in the box body.
Further, in the system for heating the solid hydrogen storage bottle by using the waste heat, the distance between the upper end of the first air duct partition plate and the top plate of the box body is 40mm-70mm, and the distance between the upper end of the second air duct partition plate and the top plate of the box body is 40mm-70mm.
Furthermore, in the system for heating the solid hydrogen storage bottle by using the waste heat, seven air duct partition plates are arranged, namely a third air duct partition plate, a fourth air duct partition plate, a fifth air duct partition plate, a sixth air duct partition plate, a seventh air duct partition plate, an eighth air duct partition plate and a ninth air duct partition plate, the third air duct partition plate is arranged between the first solid hydrogen storage bottle and the second solid hydrogen storage bottle, the upper end of the third air duct partition plate is connected with the top plate of the box body, the lower end of the third air duct partition plate is connected with the bottom plate of the box body, the fourth air duct partition plate is arranged between the first solid hydrogen storage bottle and the first side wall, the upper end of the fourth air duct partition plate is not connected with the top plate of the box body, the lower end of the fourth air duct partition plate is connected with the bottom plate of the box body, and the fifth air duct partition plate is arranged between the first solid hydrogen storage bottle and the second side wall, the upper end of the fifth air duct partition plate is connected with the top plate of the box body, the lower end of the fifth air duct partition plate is not connected with the bottom plate of the box body, the sixth air duct partition plate is arranged between the first solid-state hydrogen storage bottle and the third side wall, the upper end of the sixth air duct partition plate is not connected with the top plate of the box body, the lower end of the sixth air duct partition plate is connected with the bottom plate of the box body, the seventh air duct partition plate is arranged between the second solid-state hydrogen storage bottle and the third side wall, the upper end of the seventh air duct partition plate is not connected with the top plate of the box body, the lower end of the seventh air duct partition plate is connected with the bottom plate of the box body, the eighth air duct partition plate is arranged between the second solid-state hydrogen storage bottle and the fourth side wall, and the upper end of the eighth air duct partition plate is connected with the top plate of the box body, the lower extreme of eighth wind channel baffle with the bottom plate of box is not connected, the solid-state hydrogen storage bottle of second with be provided with between the first lateral wall ninth wind channel baffle, the upper end of ninth wind channel baffle with the roof of box is not connected, the lower extreme of ninth wind channel baffle with the bottom plate of box is connected, by first lateral wall fourth wind channel baffle the outer wall of first solid-state hydrogen storage bottle third wind channel baffle the outer wall of second solid-state hydrogen storage bottle with the region that ninth wind channel baffle encloses in proper order is first region, first wind gap with first region intercommunication, by first lateral wall the second lateral wall fifth wind channel baffle the outer wall of first solid-state hydrogen storage bottle with the region that fourth wind channel baffle encloses in proper order is the second region, by first lateral wall ninth wind channel baffle, the outer wall of second solid-state hydrogen storage bottle, the eighth wind channel baffle with the region that fourth lateral wall encloses in proper order is the third wind channel region, by the region baffle, the solid-state hydrogen storage bottle and the region that the third wind channel baffle encloses in proper order, the fourth wind channel baffle, the region outer wall encloses the eighth wind channel baffle, the solid-state hydrogen storage bottle and the fourth wind channel baffle become the region, the third wind channel baffle, the region outside wall that the solid-state hydrogen storage bottle encloses the fourth wind channel baffle and the fourth wind channel baffle are enclosed by the region, the eighth wind channel baffle in proper order.
Further, in the above system for heating a solid hydrogen storage bottle using waste heat, the first region, the second region, the fourth region, and the sixth region are sequentially communicated to form one passage for hot air to flow through the tank, and the first region, the third region, the fifth region, and the sixth region are sequentially communicated to form another passage for hot air to flow through the tank.
Further, in the above system for heating the solid hydrogen storage bottle by using waste heat, the outer wall of the solid hydrogen storage bottle is provided with heat conducting fins.
Further, in the above system for heating the solid hydrogen storage bottle by using waste heat, the heat conducting fins are provided with a plurality of fins, and the plurality of fins extend from the upper end of the solid hydrogen storage bottle to the lower end of the solid hydrogen storage bottle.
Further, in the above system for heating the solid hydrogen storage bottle by using waste heat, the heat conducting fin has a sheet structure, a tubular structure, a folded structure, or a spiral structure.
Further, in foretell system that utilizes used heat to give heating of solid-state hydrogen storage bottle, the fan is simultaneously taken and is just blowing and blowback function, when the fan is just blowing, the process air of air-cooled hydrogen fuel galvanic pile heating is in follow under the wind pressure of fan first wind gap flows in the box, flow in the hot-blast heating in the box behind the solid-state hydrogen storage bottle by the second wind gap flows out the box, during the fan blowback, the air is in under the effect of fan, by the second wind gap flows in the box flows in air heating in the box behind the solid-state hydrogen storage bottle by first wind gap flows out, flows out the air process of box flows through behind the fan air-cooled hydrogen fuel galvanic pile.
The system heats the solid hydrogen storage bottle by utilizing the waste heat generated by the air-cooled hydrogen fuel pile during working, so that the hydrogen storage alloy can continuously discharge hydrogen, the solid hydrogen storage bottle is heated without consuming extra electric energy to generate heat, and the energy efficiency utilization is improved. The solid hydrogen storage bottle is arranged in a sealed box body, hot air enters through a first air port of the box body, flows in the box body for a circle and flows out from a second air port of the box body, a high-temperature cavity environment is formed in the box body, and the flowing hot air heats the solid hydrogen storage bottle in the box body. The structure of the air channel in the box body is optimized by arranging the air channel partition plate in the box body, so that the stay time of hot air in the box body is prolonged, and the heat transfer is improved. The heat conduction area between hot air and the bottle body of the solid hydrogen storage bottle is enlarged by adding the heat conduction fins attached to the solid hydrogen storage bottle, and the heat conduction effect is improved. By changing the running direction of the fan, the problem that the air temperature in nature is high in summer high temperature and cannot cool the air-cooled hydrogen fuel cell stack is solved, and the problem of heating the solid hydrogen storage bottle can be solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:
fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is another schematic perspective view of an embodiment of the invention.
Fig. 3 is a schematic perspective view of another embodiment of the present invention.
Fig. 4 is a schematic top view of fig. 3.
Fig. 5 is a right-view structural diagram of fig. 3.
Fig. 6 is a schematic top view of a fan and a box according to another embodiment of the invention.
Fig. 7 is a rear view structural diagram of fig. 6.
Fig. 8 is a right-view structural diagram of fig. 6.
Fig. 9 is a front view of the structure of fig. 6.
Fig. 10 is a schematic top view of a first solid state hydrogen storage cylinder and a second solid state hydrogen storage cylinder provided with heat conducting fins in accordance with an embodiment of the present invention.
Fig. 11 is a schematic top view of a first solid state hydrogen storage cylinder and a second solid state hydrogen storage cylinder provided with heat conducting fins in accordance with another embodiment of the present invention.
Fig. 12 is a schematic sectional view at C-C of fig. 8.
Description of reference numerals: 1 a first solid-state hydrogen storage cylinder; 2 a second solid-state hydrogen storage cylinder; 3 air-cooled hydrogen fuel electric pile; 4, a fan; 5, a box body; 50 a first side wall; 51 a second side wall; 52 a third side wall; 53 fourth side wall; 54 a first region; 55 a second region; 56 a third region; 57 a fourth region; 58 a fifth region; 59 a sixth region; 60 first tuyere; 61 a second tuyere; 62 a first duct partition; 63 a second duct partition; 64 third duct partition; 65 a fourth air duct partition; 66 a fifth duct partition; 67 a sixth duct partition; 68 a seventh duct partition; 69 eighth duct baffle; 70 ninth air duct partition; 8 heat conducting fins.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the invention, and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit thereof. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected," "connected," and "disposed" as used herein are intended to be broadly construed, and may include, for example, fixed and removable connections; can be directly connected or indirectly connected through intermediate components; the connection may be a wired electrical connection, a wireless electrical connection, or a wireless communication signal connection, and a person skilled in the art can understand the specific meaning of the above terms according to specific situations.
One or more examples of the invention are illustrated in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the invention. As used herein, the terms "first," "second," and "third," etc. may be used interchangeably to distinguish one component from another, and are not intended to denote the position or importance of the individual components.
As shown in fig. 1 to 12, according to an embodiment of the present invention, a system for heating a solid hydrogen storage bottle by using waste heat is provided, as shown in fig. 1 to 3, the system includes a solid hydrogen storage bottle, an air-cooled hydrogen fuel cell stack 3, a fan 4, a box 5, an air duct partition and a control unit and accessories, wherein the solid hydrogen storage bottle is disposed in the box 5, the box 5 is reserved with a first air port 60 and a second air port 61, the first air port 60 of the box 5 is connected to an air outlet of the fan 4, the air-cooled hydrogen fuel cell stack 3 is connected to an air inlet of the fan 4, the air duct partition is disposed between an outer wall of the solid hydrogen storage bottle and a side wall of the box 5, air flows through the air-cooled hydrogen fuel cell stack 3 and the box 5 under the action of the fan 4, the air flows through the air-cooled hydrogen fuel cell stack 3 to cool the hydrogen storage cell stack 3, the air absorbs the waste heat of the air-cooled hydrogen fuel cell stack 3 to become hot air, the hot air flows through the box 5 to heat the solid hydrogen bottle, the control unit is used for controlling operation of the fan 4, and the accessories are used for connection between the devices. The air is heated by waste heat generated by the air-cooled hydrogen fuel cell stack 3, the solid hydrogen storage bottle in the box body 5 is heated by hot air, the air channel partition plate can prolong the running path of the hot air in the box body 5, the heat exchange effect between the hot air and the solid hydrogen storage bottle is improved, the temperature required by releasing hydrogen in the solid hydrogen storage bottle from hydrogen storage alloy is reached, the solid hydrogen storage bottle can continuously release hydrogen, and the energy efficiency utilization is greatly improved.
Further, as shown in fig. 6, the case 5 includes a first sidewall 50, a second sidewall 51, a third sidewall 52, and a fourth sidewall 53 connected in sequence, the first tuyere 60 is disposed at a lower portion of the first sidewall 50, and the second tuyere 61 is disposed at a lower portion of the third sidewall 52. The parts of the box body 5 except the first air opening 60 and the second air opening 61 are sealed, the second air opening 61 is open, and the second air opening 61 is directly communicated with the atmosphere. The solid hydrogen storage bottles are provided with two solid hydrogen storage bottles, namely a first solid hydrogen storage bottle 1 and a second solid hydrogen storage bottle 2.
Further, as shown in fig. 4 and 5, in an embodiment of the present invention, two air duct partitions are disposed between the first solid-state hydrogen storage bottle 1 and the second solid-state hydrogen storage bottle 2 in a close-fitting manner, the two air duct partitions are a first air duct partition 62 and a second air duct partition 63, the first air duct partition 62 is disposed between the outer wall of the first solid-state hydrogen storage bottle 1 and the second side wall 51 of the box 5, the second air duct partition 63 is disposed between the outer wall of the second solid-state hydrogen storage bottle 2 and the fourth side wall 53 of the box 5, the lower end of the first air duct partition 62 is connected to the bottom plate of the box 5, the upper end of the first air duct partition 62 is not connected to the top plate of the box 5, the lower end of the second air duct partition 63 is connected to the bottom plate of the box 5, and spaces at two sides of the first air duct partition 62 and the second air duct partition 63 are communicated to form a passage for hot air to flow through in the box 5. The axis of the first air duct partition plate 62, the axis of the second air duct partition plate 63, the axis of the first solid-state hydrogen storage bottle 1 and the axis of the second solid-state hydrogen storage bottle 2 are located on the same plane, the inner cavity of the box body 5 is divided into two areas by the first air duct partition plate 62, the second air duct partition plate 63, the first solid-state hydrogen storage bottle 1 and the second solid-state hydrogen storage bottle 2, the two areas are respectively a right cavity and a left cavity, the first air port 60 is communicated with the right cavity, and the second air port 61 is communicated with the left cavity. Air heated by the air-cooled hydrogen fuel cell stack 3 flows into the right cavity from the first air port 60 of the box body 5 under the air pressure of the fan 4, hot air in the right cavity vertically flows upwards from the bottom to the top, then respectively flows into the left cavity by crossing the upper sides of the first air channel partition plate 62 and the second air channel partition plate 63, and hot air in the left cavity vertically flows downwards from the top to the bottom until being converged to the second air port 61 and flows out of the box body 5 through the second air port 61. The hot air flows in the box body 5 in an inverted U shape, and flows through the two solid hydrogen storage bottles in the box body 5 by the length of the bottle bodies, so that the contact time of the hot air and the solid hydrogen storage bottles is prolonged, and the heat transferred to the solid hydrogen storage bottles by the hot air is more if the heat transfer time is long.
Further, the distance between the upper end of the air duct partition plate and the top plate of the box body 5 is 40-70mm, and the distance between the upper end of the second air duct partition plate 63 and the top plate of the box body 5 is 40-70mm.
Further, as shown in fig. 6 to 9, in another embodiment of the present invention, seven air duct partitions are provided, which are respectively a third air duct partition 64, a fourth air duct partition 65, a fifth air duct partition 66, a sixth air duct partition 67, a seventh air duct partition 68, an eighth air duct partition 69 and a ninth air duct partition 70, the third air duct partition 64 is provided between the first solid-state hydrogen storage bottle 1 and the second solid-state hydrogen storage bottle 2, the upper end of the third air duct partition 64 is connected with the top plate of the box body 5, the lower end of the third air duct partition 64 is connected with the bottom plate of the box body 5, the fourth air duct partition 65 is provided between the first solid-state hydrogen storage bottle 1 and the first side wall 50, the upper end of the fourth air duct partition 65 is not connected with the top plate of the box body 5, the lower end of the fourth air duct partition 65 is connected with the bottom plate of the box body 5, the fifth air duct partition 66 is provided between the first solid-state hydrogen storage bottle 1 and the second side wall 51, the upper end of a fifth air duct clapboard 66 is connected with the top plate of the box body 5, the lower end of the fifth air duct clapboard 66 is not connected with the bottom plate of the box body 5, a sixth air duct clapboard 67 is arranged between the first solid-state hydrogen storage bottle 1 and the third side wall 52, the upper end of the sixth air duct clapboard 67 is not connected with the top plate of the box body 5, the lower end of the sixth air duct clapboard 67 is connected with the bottom plate of the box body 5, a seventh air duct clapboard 68 is arranged between the second solid-state hydrogen storage bottle 2 and the third side wall 52, the upper end of the seventh air duct clapboard 68 is not connected with the top plate of the box body 5, the lower end of the seventh air duct clapboard 68 is connected with the bottom plate of the box body 5, an eighth air duct clapboard 69 is arranged between the second solid-state hydrogen storage bottle 2 and the fourth side wall 53, the upper end of the eighth air duct clapboard 69 is connected with the top plate of the box body 5, the lower end of the eighth air duct clapboard 69 is not connected with the bottom plate of the box body 5, a ninth air duct clapboard 70 is arranged between the second solid-state hydrogen storage bottle 2 and the first side wall 50, the upper end of a ninth air duct partition plate 70 is not connected with the top plate of the box body 5, the lower end of the ninth air duct partition plate 70 is connected with the bottom plate of the box body 5, the area sequentially defined by the first side wall 50, a fourth air duct partition plate 65, the outer wall of the first solid-state hydrogen storage bottle 1, a third air duct partition plate 64, the outer wall of the second solid-state hydrogen storage bottle 2 and the ninth air duct partition plate 70 is a first area 54, the area sequentially defined by the first side wall 50, the second side wall 51, a fifth air duct partition plate 66, the outer wall of the first solid-state hydrogen storage bottle 1 and the fourth air duct partition plate 65 is a second area 55, the area sequentially defined by the first side wall 50, the ninth air duct partition plate 70, the outer wall of the second solid-state hydrogen storage bottle 2, the eighth air duct partition plate 69 and the fourth side wall 53 is a third area 56, the area sequentially defined by the second side wall 51, the third side wall 52, the sixth air duct partition plate 67, the outer wall of the first solid-state hydrogen storage bottle 1 and the fifth air duct partition plate 66 is a fourth area 57, the area sequentially defined by the third side wall 52, the third side wall 53, the eighth air duct partition plate 69, the outer wall 68, the sixth solid-state hydrogen storage bottle 2 and the fifth air duct partition plate 68 are a seventh air duct partition plate 59, the seventh air duct partition plate 52, the sixth solid-state hydrogen storage bottle outer wall 52 and the seventh air duct partition plate 68, the seventh air duct partition plate 68 are a seventh air duct partition plate 52, the seventh air duct partition plate 68. The six regions surround a first solid hydrogen storage cylinder 1 and a second solid hydrogen storage cylinder 2. The number of the second tuyere 61 is set to 1 to 3, and when the number of the second tuyere 61 is set to 3, the 3 second tuyeres 61 are respectively communicated with the fourth region 57, the fifth region 58 and the sixth region 59 in the case 5.
Further, the first region 54, the second region 55, the fourth region 57, and the sixth region 59 are sequentially communicated to form one passage for hot air to flow through the casing 5, and the first region 54, the third region 56, the fifth region 58, and the sixth region 59 are sequentially communicated to form the other passage for hot air to flow through the casing 5. After being heated by the air-cooled hydrogen fuel cell stack 3 under the action of the fan 4, the air flows out of the fan 4 and enters the first area 54 of the box body 5, flows vertically upwards in the first area 54, crosses the upper parts of the longitudinal fourth air duct partition plate 65 and the longitudinal ninth air duct partition plate 70, enters the second area 55 and the third area 56 at two sides through split flow, then flows vertically downwards in the second area 55 and the third area 56, flows into the fourth area 57 and the fifth area 58 from the lower parts of the fifth air duct partition plate 66 and the eighth air duct partition plate 69, then flows vertically upwards, crosses the upper parts of the longitudinal sixth air duct partition plate 67 and the longitudinal seventh air duct partition plate 68, merges into the sixth area 59, flows vertically downwards in the sixth area 59, and reaches the second air port 61 of the box body 5, and the specific flow path of the hot air is shown in fig. 6, 9 and 12. The hot air flows through the bottle body length distance of the four solid hydrogen storage bottles in the box body 5, the contact heat transfer time of the hot air and the first solid hydrogen storage bottle 1 and the second solid hydrogen storage bottle 2 is doubled, the contact time is longer, the heat transferred to the first solid hydrogen storage bottle 1 and the second solid hydrogen storage bottle 2 by the hot air is more due to the long heat transfer time, and the temperature required by releasing hydrogen in the solid hydrogen storage bottles from hydrogen storage alloy is ensured.
Further, the outer wall of the solid hydrogen storage bottle is provided with a heat conduction fin 8. When hot air flows through the bottle body of the solid hydrogen storage bottle, the heat conduction fin 8 increases the heat conduction area of the bottle body of the solid hydrogen storage bottle for absorbing heat and wind heat, the heat is firstly transferred to the heat conduction fin 8, and then the heat conduction fin 8 transfers the heat to the solid hydrogen storage bottle. The effect that hot-blast for solid-state hydrogen storage bottle heating in box 5 can further be improved to so setting up, heat exchange efficiency between hot-blast and the solid-state hydrogen storage bottle is improved, guarantees that hydrogen breaks away from the release required temperature in the solid-state hydrogen storage bottle from hydrogen storage alloy.
Further, the heat conducting fins 8 are provided with a plurality of heat conducting fins 8, the plurality of heat conducting fins 8 extend from the upper end of the solid hydrogen storage bottle to the lower end of the solid hydrogen storage bottle, and the plurality of heat conducting fins 8 are uniformly distributed on the periphery of the solid hydrogen storage bottle. The heat conducting fins 8 are of a sheet structure, a tubular structure, a Z-shaped folded structure or a spiral structure, and the heat conducting fins 8 can also be of other structures on the premise that the wind resistance in the box body 5 is not increased. The larger the expansion area of the heat-conducting fins 8 is, the larger the heat transfer area is, the larger the heat conduction quantity is, and the heat exchange efficiency between the hot air and the solid hydrogen storage bottle is further improved. In the embodiment of the present invention, only two arrangement schemes of the heat conducting fins 8 are shown, as shown in fig. 10, the heat conducting fins 8 are Z-shaped folded structures, as shown in fig. 11, the heat conducting fins 8 are sheet structures, and based on the principle of the present technical solution, the designed improvement schemes of other heat conducting fins 8 all belong to the protection scope of the present invention, and the present invention is not described in detail.
Further, the fan 4 simultaneously has the functions of forward blowing and reverse blowing, when the fan 4 is blowing, air heated by the air-cooled hydrogen fuel cell stack 3 flows into the box body 5 from the first air port 60 under the wind pressure of the fan 4, hot wind flowing into the box body 5 heats the solid hydrogen storage bottle and then flows out of the box body 5 from the second air port 61, when the fan 4 is blowing reversely, air flows into the box body 5 from the second air port 61 under the action of the fan 4, the air flowing into the box body 5 heats the solid hydrogen storage bottle and then flows out from the first air port 60, the air flowing out of the box body 5 flows through the air-cooled hydrogen fuel cell stack 3 after passing through the fan 4, and the air-cooled hydrogen fuel cell stack 3 is cooled. The forward blowing of the fan 4 is the direction of the air flow shown in fig. 1, and the backward blowing of the fan 4 is the direction opposite to the direction of the air flow shown in fig. 1.
In non-summer, when the ambient temperature is less than 35 ℃, the fan 4 is blowing, the air flows as shown in figure 1, low-temperature air firstly passes through the air-cooled hydrogen fuel galvanic pile 3, the air cools the hydrogen fuel galvanic pile and absorbs heat to form hot air, the hot air flows into the box body 5 from the first air port 60 under the action of the fan 4 and flows out from the second air port 61, and the solid hydrogen storage bottle is heated in the flowing process of the hot air in the box body 5, so that the heat absorption requirement of the solid hydrogen storage bottle is met.
In summer, when the ambient temperature is 35-45 ℃, the temperature difference is too small due to too high natural wind temperature, so that the air-cooled hydrogen fuel cell stack 3 cannot be cooled, and the fan 4 is reversely blown by the control unit to change the flow direction of air. Under the action of the fan 4, air firstly flows in from the second air port 61 of the box body 5 and then flows out from the first air port 60 of the box body 5, when the air flows through the surface of the solid hydrogen storage bottle, the air with the temperature of 35-45 ℃ heats the solid hydrogen storage bottle, and simultaneously the temperature of the air is cooled, and the temperature of the air is reduced to about 20-25 ℃. The low-temperature air flowing out of the box body 5 flows into the air-cooled hydrogen fuel electric pile 3 again to cool the air-cooled hydrogen fuel electric pile 3.
By changing the operation direction of the fan 4, the problem that the temperature difference of natural wind relative to the air-cooled hydrogen fuel electric pile 3 is small and the air-cooled hydrogen fuel electric pile 3 cannot be cooled in summer is solved, so that the solid hydrogen storage bottle and the air-cooled hydrogen fuel electric pile 3 can be in the proper temperature range required by the self.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
1. the system heats the solid hydrogen storage bottle by utilizing waste heat generated when the air-cooled hydrogen fuel cell stack 3 works, so that the hydrogen storage alloy can continuously discharge hydrogen, the solid hydrogen storage bottle is heated without consuming extra electric energy to generate heat, and the energy efficiency utilization is improved.
2. The solid hydrogen storage bottle is placed in a sealed box body 5, hot air enters through a first air port 60 of the box body 5, rotates for a circle in the box body 5 and flows out of a second air port 61 of the box body 5, a high-temperature cavity environment is formed in the box body 5, and the flowing hot air heats the solid hydrogen storage bottle in the box body 5.
3. The structure of the air duct in the box body is optimized by arranging the air duct partition plate in the box body 5, so that the retention time of hot air in the box body 5 is prolonged, and the heat transfer is improved.
4. By adding the heat-conducting fins 8 attached to the solid hydrogen storage bottle, the heat-conducting area between hot air and the bottle body of the solid hydrogen storage bottle is enlarged, and the heat-conducting effect is improved.
5. By changing the running direction of the fan 4, the problem that the air temperature in nature is high in summer high temperature and cannot cool the air-cooled hydrogen fuel cell stack 3 is solved, and the problem of heating the solid hydrogen storage bottle can be solved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A system for heating a solid hydrogen storage bottle by utilizing waste heat is characterized by comprising the solid hydrogen storage bottle, an air-cooled hydrogen fuel pile, a fan, a box body and an air duct clapboard, wherein,
the solid hydrogen storage bottle is arranged in the box body, a first air port and a second air port are reserved in the box body,
the first air port of the box body is connected with the air outlet of the fan, the air-cooled hydrogen fuel cell stack is connected with the air inlet of the fan,
the air duct partition plate is arranged between the outer wall of the solid hydrogen storage bottle and the side wall of the box body,
air flows through the air-cooled hydrogen fuel electric pile and the box body under the action of the fan, the air absorbs waste heat of the air-cooled hydrogen fuel electric pile to form hot air, and the hot air flows through the box body to heat the solid hydrogen storage bottle.
2. The system for utilizing waste heat to heat a solid state hydrogen storage cylinder according to claim 1,
the box body comprises a first side wall, a second side wall, a third side wall and a fourth side wall which are connected in sequence, the first air opening is arranged at the lower part of the first side wall, the second air opening is arranged at the lower part of the third side wall,
the solid hydrogen storage bottles are provided with two solid hydrogen storage bottles, namely a first solid hydrogen storage bottle and a second solid hydrogen storage bottle.
3. The system for utilizing waste heat to heat a solid state hydrogen storage cylinder according to claim 2,
the first solid hydrogen storage bottle and the second solid hydrogen storage bottle are arranged in a clinging manner, the air channel partition plate is provided with two air channel partition plates which are respectively a first air channel partition plate and a second air channel partition plate,
the first air duct partition is arranged between the outer wall of the first solid-state hydrogen storage bottle and the second side wall of the box body,
the second air duct clapboard is arranged between the outer wall of the second solid-state hydrogen storage bottle and the fourth side wall of the box body,
the lower end of the first air duct partition plate is connected with the bottom plate of the box body, the upper end of the first air duct partition plate is not connected with the top plate of the box body, the lower end of the second air duct partition plate is connected with the bottom plate of the box body, the upper end of the second air duct partition plate is not connected with the top plate of the box body,
the spaces on the two sides of the first air duct partition plate and the second air duct partition plate are communicated and form a channel for hot air to circulate in the box body.
4. The system for utilizing waste heat to heat a solid state hydrogen storage cylinder according to claim 3,
the distance between the upper end of the first air duct partition plate and the top plate of the box body is 40-70mm, and the distance between the upper end of the second air duct partition plate and the top plate of the box body is 40-70mm.
5. The system for utilizing waste heat to heat a solid state hydrogen storage cylinder according to claim 2,
seven air duct partition plates are arranged, namely a third air duct partition plate, a fourth air duct partition plate, a fifth air duct partition plate, a sixth air duct partition plate, a seventh air duct partition plate, an eighth air duct partition plate and a ninth air duct partition plate,
the third air duct clapboard is arranged between the first solid hydrogen storage bottle and the second solid hydrogen storage bottle, the upper end of the third air duct clapboard is connected with the top plate of the box body, the lower end of the third air duct clapboard is connected with the bottom plate of the box body,
the fourth air duct clapboard is arranged between the first solid-state hydrogen storage bottle and the first side wall, the upper end of the fourth air duct clapboard is not connected with the top plate of the box body, the lower end of the fourth air duct clapboard is connected with the bottom plate of the box body,
the fifth air duct clapboard is arranged between the first solid-state hydrogen storage bottle and the second side wall, the upper end of the fifth air duct clapboard is connected with the top plate of the box body, the lower end of the fifth air duct clapboard is not connected with the bottom plate of the box body,
the sixth air duct clapboard is arranged between the first solid-state hydrogen storage bottle and the third side wall, the upper end of the sixth air duct clapboard is not connected with the top plate of the box body, the lower end of the sixth air duct clapboard is connected with the bottom plate of the box body,
the seventh air duct clapboard is arranged between the second solid hydrogen storage bottle and the third side wall,
the upper end of the seventh air duct partition plate is not connected with the top plate of the box body, the lower end of the seventh air duct partition plate is connected with the bottom plate of the box body,
the eighth air duct clapboard is arranged between the second solid hydrogen storage bottle and the fourth side wall,
the upper end of the eighth air duct clapboard is connected with the top plate of the box body, the lower end of the eighth air duct clapboard is not connected with the bottom plate of the box body,
the ninth air duct clapboard is arranged between the second solid hydrogen storage bottle and the first side wall,
the upper end of the ninth air duct partition plate is not connected with the top plate of the box body, the lower end of the ninth air duct partition plate is connected with the bottom plate of the box body,
the area sequentially enclosed by the first side wall, the fourth air duct partition plate, the outer wall of the first solid-state hydrogen storage bottle, the third air duct partition plate, the outer wall of the second solid-state hydrogen storage bottle and the ninth air duct partition plate is a first area, the first air port is communicated with the first area,
the area which is formed by the first side wall, the second side wall, the fifth air duct clapboard, the outer wall of the first solid-state hydrogen storage bottle and the fourth air duct clapboard in turn is a second area,
a region which is sequentially enclosed by the first side wall, the ninth air duct partition plate, the outer wall of the second solid hydrogen storage bottle, the eighth air duct partition plate and the fourth side wall is a third region,
a region sequentially enclosed by the second side wall, the third side wall, the sixth air duct partition plate, the outer wall of the first solid-state hydrogen storage bottle and the fifth air duct partition plate is a fourth region, the second air port is communicated with the fourth region,
a fifth area is formed by the third side wall, the fourth side wall, the eighth air duct partition plate, the outer wall of the second solid-state hydrogen storage bottle and the seventh air duct partition plate in sequence,
and the sixth area is formed by sequentially enclosing the third side wall, the seventh air duct partition plate, the outer wall of the second solid-state hydrogen storage bottle, the third air duct partition plate, the outer wall of the first solid-state hydrogen storage bottle and the sixth air duct partition plate.
6. The system for utilizing waste heat to heat a solid state hydrogen storage cylinder according to claim 5,
the first area, the second area, the fourth area and the sixth area are communicated in sequence to form a passage for hot air to circulate in the box body,
the first area, the third area, the fifth area and the sixth area are communicated in sequence to form another passage for hot air to flow in the box body.
7. The system for utilizing waste heat to heat a solid state hydrogen storage cylinder according to claim 1,
and the outer wall of the solid hydrogen storage bottle is provided with a heat conduction fin.
8. The system for utilizing waste heat to heat a solid hydrogen storage cylinder of claim 7,
the heat conduction fins are provided with a plurality of fins, and the plurality of fins extend from the upper end of the solid hydrogen storage bottle to the lower end of the solid hydrogen storage bottle.
9. The system for utilizing waste heat to heat a solid state hydrogen storage cylinder according to claim 7,
the heat conduction fin is of a sheet structure, a tubular structure, a folded structure or a spiral structure.
10. The system for utilizing waste heat to heat a solid state hydrogen storage cylinder according to claim 1,
the fan has the functions of forward blowing and reverse blowing at the same time,
when the fan blows, the air heated by the air-cooled hydrogen fuel cell stack flows into the box body from the first air opening under the air pressure of the fan, and the hot air flowing into the box body heats the solid hydrogen storage bottle and then flows out of the box body from the second air opening,
when the fan blows back, air flows into the box body from the second air opening under the action of the fan, the air flowing into the box body heats the solid hydrogen storage bottle and then flows out from the first air opening, and the air flowing out of the box body flows through the fan and then flows through the air-cooled hydrogen fuel cell stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211493851.5A CN115810770A (en) | 2022-11-25 | 2022-11-25 | System for heating solid hydrogen storage bottle by utilizing waste heat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211493851.5A CN115810770A (en) | 2022-11-25 | 2022-11-25 | System for heating solid hydrogen storage bottle by utilizing waste heat |
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| CN115810770A true CN115810770A (en) | 2023-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211493851.5A Pending CN115810770A (en) | 2022-11-25 | 2022-11-25 | System for heating solid hydrogen storage bottle by utilizing waste heat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117628399A (en) * | 2024-01-11 | 2024-03-01 | 广东佳邑新能源科技有限公司 | Quick hydrogenation/hydrogen release device based on solid hydrogen storage |
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2022
- 2022-11-25 CN CN202211493851.5A patent/CN115810770A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117628399A (en) * | 2024-01-11 | 2024-03-01 | 广东佳邑新能源科技有限公司 | Quick hydrogenation/hydrogen release device based on solid hydrogen storage |
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