CN220873641U - Hydrogen fuel power system and hydrogen energy apparatus - Google Patents
Hydrogen fuel power system and hydrogen energy apparatus Download PDFInfo
- Publication number
- CN220873641U CN220873641U CN202322429790.2U CN202322429790U CN220873641U CN 220873641 U CN220873641 U CN 220873641U CN 202322429790 U CN202322429790 U CN 202322429790U CN 220873641 U CN220873641 U CN 220873641U
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- China
- Prior art keywords
- hydrogen
- fuel cell
- storage device
- power system
- hydrogen storage
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 122
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 122
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 239000000446 fuel Substances 0.000 title claims abstract description 90
- 239000007789 gas Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 13
- 238000004891 communication Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- 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
- Y02E60/50—Fuel cells
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model discloses a hydrogen fuel power system and hydrogen energy equipment, and belongs to the field of hydrogen energy application. The hydrogen storage device is communicated with the fuel cell through a hydrogen pipeline; an air inlet is formed in the windward side of the shell, and the hydrogen storage device is arranged at a position higher than or partially higher than the fuel cell; the fuel power system is operated with the fuel cell being at a temperature greater than the hydrogen storage device and with a gas flow circulation within the housing. According to the utility model, the hydrogen storage device and the fuel cell utilize temperature gradient in the shell, hot air rises and cold air descends, and air flow circulation is formed in the shell, so that the fuel cell needs to release heat in the operation process, the hydrogen storage device needs to absorb heat in the operation process to reach a heat balance state, and therefore, the efficiency of the fuel cell is improved, the required additional cooling parts are reduced, the compactness of the whole device is improved, and the cost is reduced.
Description
Technical Field
The utility model belongs to the field of hydrogen energy application, and particularly relates to a hydrogen fuel power system and hydrogen energy equipment.
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 and the surrounding environment temperature of the hydrogen bottle are quickly reduced, and the low temperature prevents the solid hydrogen storage bottle from further discharging hydrogen.
The power system of the hydrogen energy equipment adopting the low-pressure solid hydrogen storage as the hydrogen source becomes an ideal choice for the green, low-carbon, safe and environment-friendly trip of the economy and society. In general, when the low-pressure hydrogen storage tank works as a hydrogen source, the low-pressure hydrogen storage tank needs to be heated to increase the hydrogen release rate of the low-pressure hydrogen storage tank, so how to fully utilize the waste heat in the hydrogen energy equipment and control the temperature of the low-pressure hydrogen storage tank, the galvanic pile, the corresponding control system and other devices is a problem that needs to be fully considered by the skilled person.
Disclosure of utility model
In order to overcome the technical defects, the utility model provides a hydrogen fuel power system and a hydrogen energy device, so as to solve the problems related to the background technology.
The present utility model provides a hydrogen fuel power system comprising: the hydrogen storage device is communicated with the fuel cell through a hydrogen pipeline, an air inlet is formed in the windward side of the shell, and the hydrogen storage device is arranged at a position higher than or partially higher than the position of the fuel cell;
The fuel power system is operated with the fuel cell being at a temperature greater than the hydrogen storage device and with a gas flow circulation within the housing.
Preferably or alternatively, an air outlet is provided in the lower part of the leeward side of the housing.
Preferably or alternatively, the air outlet or a side thereof adjacent to the air outlet is provided with a heat sink configured to direct a flow of air from within the housing to the outside of the air outlet.
Preferably or alternatively, a controller is further arranged inside the shell, and the controller is in signal connection with the fuel cell and the hydrogen storage device.
Preferably or alternatively, a first chamber and a second chamber for accommodating the fuel cell and the hydrogen storage device, respectively, are formed inside the housing, and the first chamber upper portion, the lower portion, and the second chamber upper portion, the lower portion are communicated with each other.
Preferably or alternatively, a spiral guide vane contacting with the hydrogen storage device is further arranged inside the second containing cavity.
Preferably or alternatively, the exhaust gas discharge port of the fuel cell is communicated with the inside of the second containing cavity, and the exhaust gas generated by the fuel cell is led into the upper part of the spiral guide vane.
Preferably or optionally, the bottom of the second cavity is further provided with a drain hole.
The utility model also provides a hydrogen energy device which comprises the hydrogen fuel power system or adopts the temperature control method.
The utility model relates to a hydrogen fuel power system and hydrogen energy equipment, which have the following beneficial effects compared with the prior art:
1. The hydrogen storage device and the fuel cell utilize temperature gradient in the shell, hot air rises and cold air descends, air circulation is formed in the shell, heat is required to be released in the operation process of the fuel cell, heat is required to be absorbed in the operation process of the hydrogen storage device to reach a heat balance state, and therefore the efficiency of the fuel cell is improved, additional cooling and heating components are reduced, the compactness of the whole device is improved, and the cost is reduced. Meanwhile, air flow or natural wind force formed by running of the vehicle is guided into the shell through the air inlet, so that the flow speed of the air flow and the heat dissipation effect are improved.
2. The utility model improves the heat dissipation efficiency of the whole hydrogen fuel power system by taking the air outlet and the heat dissipation device as the supplementary heat dissipation means, and simultaneously avoids directly leading out excessive hot air to influence the air flow circulation of the whole hydrogen fuel power system.
3. According to the utility model, the shell is divided into the first containing cavity and the second containing cavity to form the flow channel, so that structural support is formed for air flow circulation, the heat exchange time is prolonged, and the stability of air flow circulation is ensured.
4. The spiral guide vane is arranged outside the fuel cell, so that the heat exchange time between the hot air and the hydrogen storage device can be further prolonged, and the heat utilization efficiency is improved.
5. According to the utility model, the tail gas of the fuel cell is directly discharged into the shell (namely the second containing cavity) through the pipeline, and the tail gas is used for heating the hydrogen storage device, so that the heat of the tail gas of the fuel cell is reused.
6. According to the temperature control method, the air flow circulation in the shell is taken as a main part, and the heat dissipation device is taken as an auxiliary heat dissipation adjustment mode, so that the heat balance of the fuel power system is realized, the efficiency of the fuel cell is improved, the required additional cooling parts are reduced, the compactness of the whole device is improved, and the cost is reduced.
Drawings
Fig. 1 is a schematic diagram of a first hydrogen fuel power system according to the present utility model.
Fig. 2 is a schematic diagram of a second hydrogen fuel power system according to the present utility model.
Fig. 3 is a schematic diagram of a third hydrogen fuel power system according to the present utility model.
FIG. 4 is a schematic flow chart of the temperature control method in the utility model.
The reference numerals are:
100. a housing; 110. a first cavity; 120. a second cavity; 130. an air inlet; 140. an air outlet; 150. an upper communication passage; 160. a lower communication passage; 170. spiral guide vanes;
200. a fuel cell;
300. a hydrogen storage device;
400. A fan.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.
The present embodiment provides a hydrogen fuel power system, which is applied to a hydrogen energy device, where the hydrogen energy device may be a hydrogen energy two-wheel vehicle or a hydrogen energy power source, and the present embodiment is discussed by taking a hydrogen energy assisted bicycle or a hydrogen energy bicycle as an example. Referring to fig. 1, the hydrogen fuel power system includes: a housing 100, a fuel cell 200 arranged in the housing 100, and a hydrogen storage device 300, wherein the hydrogen storage device 300 is communicated with the fuel cell 200 through a hydrogen pipeline; an air inlet 130 is provided on the windward side of the housing 100, and the hydrogen storage device 300 is disposed at a position higher or partially higher than the fuel cell 200. Because the hydrogen storage device 300 and the fuel cell 200 utilize a temperature gradient in the housing 100, hot air rises and cold air descends, and air flow circulation is formed in the housing 100, the fuel cell 200 needs to release heat in the operation process, the hydrogen storage device 300 needs to absorb heat in the operation process to reach a thermal equilibrium state, so that the efficiency of the fuel cell 200 is improved, and meanwhile, additional cooling and heating components are reduced, the compactness of the whole device is improved, and the cost is reduced. Meanwhile, the airflow formed by the running of the vehicle is guided into the housing 100 through the air inlet, so that the airflow speed and the heat dissipation effect are improved.
In a further embodiment, the air outlet 140 is disposed at the lower part of the leeward side of the housing 100, and a heat dissipating device, which may be a fan 400, is disposed at the air outlet 140 of the housing 100 or at a side close to the air outlet 140, and the fan 400 is configured to guide a part of air flowing from the inside of the housing 100 to the outside of the air outlet 140. Since the heat generating rate of the fuel cell 200 is greater than the heat absorbing rate of the hydrogen storage device 300, when the ambient temperature is too high or the heat dissipation performance of the housing 100 is poor, the overall temperature of the fuel cell 200 and the hydrogen storage device 300 is still increased when the heat in the housing 100 cannot be removed in time, so that the fan 400 is required to guide part of the air in the housing 100 to flow outside the air outlet 140, and the heat dissipation efficiency of the whole hydrogen fuel power system is improved. When the air heated by the fuel cell 200 flows near the air outlet 140, part of the hot air rises to maintain the air circulation, so that the air outlet 140 is arranged at the lower part of the housing 100, and the rotation speed of the fan 400 needs to be ensured to be within a reasonable range, so that the excessive hot air is prevented from being directly led out to influence the air circulation of the whole hydrogen fuel power system.
In a further embodiment, referring to fig. 3, a controller is further disposed in the housing 100 and is in signal connection with the fuel cell 200 and the hydrogen storage device 300, and the controller is also a heating unit, so that the controller is disposed on a side close to the air inlet 130 and forms an air flow cycle with the hydrogen storage device 300 in the housing 100 by using a temperature gradient, thereby improving the heat utilization rate of the hydrogen storage device 300.
In a further embodiment, a first chamber 110 and a second chamber 120 for accommodating the fuel cell 200 and the hydrogen storage device 300, respectively, are formed inside the housing 100, and the upper and lower parts of the first chamber 110 and the second chamber 120 are communicated with each other, respectively, as an upper communication channel 150 and a lower communication channel 160. The air outside the vehicle enters the first cavity 110 through the air inlet 130, the lower part of the second cavity 120 and the lower part communication channel 160, exchanges heat with the fuel cell 200 to form hot air, and then the hot air reenters the second cavity 120 through the upper part communication channel 150 to exchange heat with the hydrogen storage device 300 to form cold air, and part of the cold air flows out through the air inlet 130, and part of the cold air is recirculated with the air outside the vehicle to further form the first cavity 110.
In addition, a spiral flow deflector 170 contacting with the hydrogen storage device 300 is further disposed in the second cavity 120, and the upper communication channel 150 is aligned with the upper portion of the spiral flow deflector 170, so that the heat exchange time between the hot air and the hydrogen storage device 300 can be prolonged, and the heat exchange effect between the hot air and the hydrogen storage device 300 can be further improved.
When the environmental temperature is too low, the heating rate of the hydrogen storage device 300 is less than that of the overall heat dissipation of the housing 100, and the tail gas of the fuel cell 200 is mainly water vapor and residual oxygen, which generally carries a large amount of heat, so that the tail gas exhaust port of the fuel cell 200 is communicated with the interior of the second accommodating cavity 120 to fully utilize the heat of the tail gas of the fuel cell 200, and the tail gas of the fuel cell 200 is directly discharged into the housing 100 (i.e., the second accommodating cavity 120) through a pipeline, so that the tail gas heats the hydrogen storage device 300, thereby realizing the reutilization of the heat of the tail gas of the fuel cell 200. In order to improve the heat exchange efficiency between the tail gas and the hot air in the second accommodating cavity 120 and the hydrogen storage device 300, a spiral guide vane 170 contacting with the hydrogen storage device 300 is further disposed in the second accommodating cavity 120, on one hand, to improve the heat exchange efficiency between the tail gas and the hydrogen storage device 300, and on the other hand, a drain hole is further disposed at the bottom of the second accommodating cavity 120, the spiral guide vane 170 provides a water vapor liquefaction place and plays a role in guiding water, so as to guide the liquefied water droplets to the drain hole.
In order to facilitate understanding of the technical scheme of the hydrogen fuel power system in this embodiment, a brief description will be given of a temperature control method thereof:
S1, starting a hydrogen fuel power system; specifically, the hydrogen fuel system comprises various valve assemblies, a temperature detection device, a fuel cell 200 electric pile and other devices in the hydrogen fuel system.
S2, acquiring the temperature of the fuel cell 200, the temperature in the shell 100 and the temperature of the hydrogen storage device 300 at intervals of a preset time; the predetermined time interval includes two layers, namely, in a first judging period, the predetermined time interval refers to the time required for the temperature of the hydrogen fuel power system to change to form a relatively stable airflow circulation in the shell 100; secondly, in the following multiple judging periods, the predetermined time interval refers to the time required for re-forming a relatively stable air flow cycle after the fan 400 is turned on. In addition, since the temperature distribution inside the housing 100 is not uniform, the temperature inside the housing 100 specifically includes temperatures of at least two locations, and a weighted average is calculated.
S3, judging whether the temperature of the fuel cell 200 is less than the upper limit of the operation temperature of the fuel cell 200; if not, starting the fan 400 or maintaining the fan 400 in an on state, and running to the next judging period; if yes, executing the next step; on the one hand, the intake of cool air outside the vehicle is increased, and on the other hand, the flow speed of air circulation can be increased, so that the heat dissipation efficiency of the fuel cell 200 is improved.
S4, judging whether the temperature in the shell 100 is less than the upper limit of the running temperature of the hydrogen fuel power system; if yes, keeping the current state, and executing the next step; if not, closing the hydrogen fuel power system;
s5, judging whether the temperature of the hydrogen storage device 300 is less than the upper limit of the operation temperature of the hydrogen storage device 300; if yes, keeping the current state, and returning to the step S2; if not, the fan 400 is started or the power of the fan 400 is increased, and the next judging period is performed. In other words, if the temperature of the hydrogen storage device 300 is normal, the next determination cycle is entered, and the temperature of the fuel cell 200, the temperature in the casing 100, and the temperature of the hydrogen storage device 300 are retrieved at predetermined intervals. The temperature of the hydrogen storage device 300 is too high, and the heat absorption capacity of the hydrogen storage device 300 cannot meet the requirement of the whole air flow circulation temperature, so that the fan 400 needs to be started to assist in heat dissipation, or the power of the fan 400 is increased to damage the air flow circulation, so that forced heat dissipation is realized.
Since the heat generated by the fuel cell 200 is higher than the heat absorption capacity of the hydrogen storage device 300, the control of the upper temperature limit is more focused in the present temperature control method, and the control of the lower temperature limit of the hydrogen storage device 300 is to improve the heat exchange efficiency between the hot air in the second chamber 120 and the hydrogen storage device 300 by introducing the tail gas generated by the fuel cell 200 into the upper portion of the spiral flow deflector 170, which is not specifically developed here.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.
Claims (9)
1. A hydrogen fuel power system, comprising: the hydrogen storage device is communicated with the fuel cell through a hydrogen pipeline, an air inlet is formed in the windward side of the shell, and the hydrogen storage device is arranged at a position higher than or partially higher than the position of the fuel cell;
The fuel power system is operated with the fuel cell being at a temperature greater than the hydrogen storage device and with a gas flow circulation within the housing.
2. The hydrogen fuel power system of claim 1, wherein an air outlet is provided in a lower portion of the leeward side of the housing.
3. The hydrogen fuel power system according to claim 2, wherein the air outlet or a side near the air outlet is provided with a heat sink configured to guide a flow of a part of air from inside the housing to outside the air outlet.
4. The hydrogen fuel power system according to claim 1, wherein a controller is further provided inside the housing, and the controller is in signal connection with the fuel cell and the hydrogen storage device.
5. The hydrogen fuel power system according to claim 1, wherein a first chamber and a second chamber for accommodating the fuel cell and the hydrogen storage device, respectively, are formed inside the housing, and the first chamber upper portion and the lower portion and the second chamber upper portion and the lower portion are communicated with each other.
6. The hydrogen fuel power system of claim 5, wherein the second chamber is further provided with a spiral deflector disposed therein in contact with the hydrogen storage device.
7. The hydrogen fuel power system according to claim 6, wherein the exhaust gas discharge port of the fuel cell communicates with the inside of the second chamber, and the exhaust gas generated from the fuel cell is introduced into the upper portion of the spiral guide vane.
8. The hydrogen fuel power system of claim 7, wherein the second chamber bottom is further provided with a drain hole.
9. A hydrogen energy apparatus comprising the hydrogen fuel power system according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322429790.2U CN220873641U (en) | 2023-09-07 | 2023-09-07 | Hydrogen fuel power system and hydrogen energy apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322429790.2U CN220873641U (en) | 2023-09-07 | 2023-09-07 | Hydrogen fuel power system and hydrogen energy apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220873641U true CN220873641U (en) | 2024-04-30 |
Family
ID=90816394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322429790.2U Active CN220873641U (en) | 2023-09-07 | 2023-09-07 | Hydrogen fuel power system and hydrogen energy apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220873641U (en) |
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2023
- 2023-09-07 CN CN202322429790.2U patent/CN220873641U/en active Active
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