CN220856623U - Hydrogen energy conversion system based on solid-state hydrogen storage - Google Patents
Hydrogen energy conversion system based on solid-state hydrogen storage Download PDFInfo
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- CN220856623U CN220856623U CN202322443790.8U CN202322443790U CN220856623U CN 220856623 U CN220856623 U CN 220856623U CN 202322443790 U CN202322443790 U CN 202322443790U CN 220856623 U CN220856623 U CN 220856623U
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 334
- 239000001257 hydrogen Substances 0.000 title claims abstract description 332
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 332
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 84
- 239000007789 gas Substances 0.000 claims abstract description 49
- 239000007787 solid Substances 0.000 claims abstract description 44
- 238000002156 mixing Methods 0.000 claims abstract description 39
- 238000002485 combustion reaction Methods 0.000 claims abstract description 33
- 239000011232 storage material Substances 0.000 claims abstract description 13
- 239000000446 fuel Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 7
- 229910052749 magnesium Inorganic materials 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910000861 Mg alloy Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910012375 magnesium hydride Inorganic materials 0.000 description 1
- -1 magnesium hydrides Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Fuel Cell (AREA)
Abstract
The utility model discloses a hydrogen energy conversion system based on solid hydrogen storage, which comprises a hydrogen energy conversion device, a hydrogen mixing device, a solid hydrogen storage device and a gaseous hydrogen storage device; the hydrogen energy conversion device comprises a hydrogen combustion chamber and a tail gas outlet; the solid hydrogen storage device is positioned at the tail gas outlet, is internally stored with solid hydrogen storage materials and is communicated with the hydrogen mixing device; the gaseous hydrogen storage device stores hydrogen in the gaseous hydrogen storage device and is communicated with the hydrogen mixing device, the hydrogen mixing device is communicated with the hydrogen combustion chamber, and hydrogen with preset pressure is introduced into the hydrogen combustion chamber. According to the utility model, the high-heat tail gas is generated by utilizing the reaction of the hydrogen and the oxygen in the hydrogen energy conversion device, so that a heat energy source is provided for the solid-state hydrogen storage device to release hydrogen, the solid-state hydrogen storage device can be heated to release hydrogen without external heat supply, and the energy utilization rate is improved.
Description
Technical Field
The utility model belongs to the technical field of hydrogen energy conversion, and particularly relates to a hydrogen energy conversion system based on solid-state hydrogen storage
Background
The magnesium-based metal hydrogen storage material can be used as a hydrogen source and matched with an oxyhydrogen fuel cell, and is applied to the fields of various ship equipment and the like as a power system. Compared with the high-pressure gaseous and liquid hydrogen storage methods, the method has the advantages that the occupied space for storing hydrogen with the same quality by adopting the magnesium-based solid hydrogen storage material is minimum, the method has the outstanding advantages of easy operation, convenient transportation, low cost, safety, long-term storage and the like, and becomes a hydrogen storage mode with the most development potential.
The magnesium-based hydrogen storage material has the advantages of high theoretical capacity, wide and easily available raw materials and the like, but the temperature required by hydrogen release is too high. The main reason is that magnesium hydrides have a high thermodynamic stability. The hydrogen can be efficiently released when the equilibrium pressure of H 2 is 1bar, and the proper hydrogen release enthalpy is 30-40kJ/mol H 2; whereas MgH 2 has a hydrogen evolution enthalpy up to 78kJ/mol H 2 and H therein is too stable, thus requiring a higher temperature for evolution. The magnesium-based hydrogen storage material is required to maintain a high-temperature state for hydrogen storage, and the material filling container is required to be additionally heated, so that excessive power consumption is caused, the energy consumption provides great challenges for the market operation cost, the application of the magnesium-based hydrogen storage material in various fields is greatly limited, and therefore, the hydrogen use scene with cheap heat sources and hydrogen is required to be found, so that the advantages of the magnesium-based solid hydrogen storage can be more highlighted.
Patent CN216250820U discloses a magnesium-based solid-state hydrogen storage power generation system. The hydrogen storage tank is internally provided with a heat conduction oil pipe, the hydrogen storage tank is communicated with a hydrogen inlet of the SOFC electric pile through the hydrogen inlet pipe, the hydrogen inlet pipe is provided with a first valve, a first heat exchanger, a first temperature sensor, a hydrogen heating device and a second valve, the waste gas recovery device is communicated with a waste gas outlet of the SOFC electric pile, the air preheater is communicated with an air inlet of the SOFC electric pile, the SOFC electric pile is provided with a heat exchange coil, the heat exchange coil and the heat conduction oil pipe form a closed loop, the first oil pipe is provided with a second temperature sensor, a circulating pump and a heat conduction oil heater, the waste gas recovery device is communicated with a tube pass or a shell pass of the first heat exchanger through a second waste gas pipe, and the waste gas recovery device is communicated with the air preheater through a third waste gas pipe. Although the magnesium alloy hydrogen storage system and the SOFC power generation system can be combined, the magnesium alloy hydrogen storage system needs to be heated and discharged through a heat conduction oil heater, heat generated by the SOFC power generation system cannot be directly utilized, and the hydrogen generated by the magnesium alloy hydrogen storage system needs to be connected with a heat exchanger through a pipeline for heat exchange, so that the heat utilization rate is relatively low.
Therefore, how to provide a hydrogen production system based on the solid hydrogen storage material for releasing hydrogen by heating, which effectively utilizes the high-heat tail gas generated by the reaction of a hydrogen gas turbine and occupies a small volume, is a problem to be solved by the person skilled in the art.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model provides a hydrogen energy conversion system based on solid hydrogen storage, which can utilize high-heat tail gas generated by reaction and has small occupied volume.
The utility model provides a hydrogen energy conversion system based on solid hydrogen storage, which comprises a hydrogen energy conversion device, a hydrogen mixing device, a solid hydrogen storage device and a gaseous hydrogen storage device;
The hydrogen energy conversion device comprises a hydrogen combustion chamber and a tail gas outlet;
The solid hydrogen storage device is positioned at the tail gas outlet, is internally stored with solid hydrogen storage materials and is communicated with the hydrogen mixing device;
The gaseous hydrogen storage device stores hydrogen in the gaseous hydrogen storage device and is communicated with the hydrogen mixing device;
The hydrogen mixing device is communicated with the hydrogen combustion chamber and is used for introducing hydrogen with a preset pressure into the hydrogen combustion chamber.
Further, the hydrogen energy conversion system comprises a first pipeline and a second pipeline;
The hydrogen mixing device comprises a mixing buffer chamber communicated with the hydrogen combustion chamber;
The solid-state hydrogen storage device is communicated with the mixing buffer chamber through a first pipeline, and the gaseous hydrogen storage device is communicated with the mixing buffer chamber through a second pipeline.
Because the hydrogen supply pressure of the two pipelines is different, the mixed buffer chamber can play a role in buffering the pressure fluctuation of the hydrogen after receiving the hydrogen of the two pipelines, and the hydrogen is ensured to be supplied to the hydrogen combustion chamber under stable pressure in the hydrogen supply process.
Further, the first pipeline and the second pipeline are respectively provided with a hydrogen storage valve and a pressure gauge, and the hydrogen mixing device further comprises a controller which is in communication connection with the hydrogen storage valves and the pressure gauges.
The first pipeline hydrogen storage valve controls the hydrogen supply rate of the solid-state hydrogen storage device, and the second pipeline hydrogen storage valve controls the hydrogen supply rate of the gaseous hydrogen storage device.
The pressure gauge can measure the hydrogen pressure in the pipeline and transmit data to the controller;
After the first pipeline reaches the preset pressure, the controller gradually opens a hydrogen storage valve of the first pipeline where the solid hydrogen storage device is positioned, and hydrogen of the solid hydrogen storage device and the gaseous hydrogen storage device enter a mixing buffer chamber to be mixed and simultaneously supply hydrogen for the hydrogen energy conversion device; after the pressure of the first pipeline is stable, a hydrogen storage valve of a second pipeline where the gaseous hydrogen storage device is positioned is closed, and at the moment, the hydrogen energy conversion device is completely driven by hydrogen provided by the solid hydrogen storage device.
Further, the first pipeline and the second pipeline are provided with one-way valves.
The one-way valve can prevent hydrogen from entering the other pipeline due to pressure difference in the hydrogen supplying process of the first pipeline and the second pipeline.
Further, a cooler is also arranged on the first pipeline.
The cooler may cool the heated evolved hydrogen gas to a desired temperature for supply to the mixing buffer chamber.
Further, the hydrogen energy conversion system also comprises a heat exchange device, the heat exchange device comprises a tail gas heat exchange channel communicated with the tail gas outlet and heat exchange fins arranged in the tail gas heat exchange channel, the solid hydrogen storage device is positioned in the tail gas heat exchange channel, and the heat exchange fins are positioned between the solid hydrogen storage device and the inner wall of the tail gas heat exchange channel.
The heat exchange fins are effective to transfer heat from one medium to another, thereby effecting heat transfer. The heat exchange fin has the characteristics of good heat conduction performance, compact structure, small occupied space, low maintenance cost, long service life, difficult damage, long-term stable work, high-efficiency heat exchange effect and energy conservation.
Further, the solid-state hydrogen storage device comprises a plurality of storage chambers, and the storage chambers are communicated with the first pipeline.
The heat exchange area of the hydrogen and tail gas heat exchange channels can be increased by the storage chambers, the heat exchange efficiency is improved, and the 316 stainless steel is preferably selected as the storage chamber material for further improving the heat exchange efficiency.
Further, the hydrogen energy conversion device is a hydrogen internal combustion engine, a hydrogen gas turbine or a solid oxide fuel cell. The hydrogen energy conversion device can be selected according to different use situations.
Further, the hydrogen energy conversion device is a hydrogen internal combustion engine or a hydrogen gas turbine, and comprises an output rotating shaft connected with the load.
Further, the hydrogen energy conversion device is a solid oxide fuel cell, and the hydrogen energy conversion device comprises an electric energy output end connected with the load.
The utility model provides a hydrogen energy conversion system based on solid-state hydrogen storage, which at least comprises the following beneficial effects:
(1) According to the utility model, the high-heat tail gas generated by the reaction of the hydrogen and the oxygen in the hydrogen energy conversion device is utilized to provide a heat energy source for the solid-state hydrogen storage device to release hydrogen, so that the solid-state hydrogen storage device can be heated to release hydrogen without external heat supply, and the energy utilization rate is improved.
(2) The solid-state hydrogen storage device is directly arranged at the tail gas discharge position of the hydrogen energy conversion device, the high-temperature tail gas has small heat loss, the solid-state hydrogen storage device and the tail gas discharge position are integrated, the occupied volume of the conversion system is reduced, more space is provided for the initial hydrogen supply device, and the frequency of replacing the gaseous hydrogen storage device is reduced.
Drawings
FIG. 1 is a schematic diagram of a hydrogen energy conversion system based on solid state hydrogen storage according to the present utility model;
Fig. 2 is a schematic structural diagram of a hydrogen energy conversion system according to an embodiment of the present utility model.
Reference numerals illustrate:
The device comprises a 1-solid hydrogen storage device, a 2-cooler, a 3-gaseous hydrogen storage device, a 4-hydrogen mixing device, a 5-hydrogen energy conversion device, a 6-one-way valve, a 7-hydrogen storage valve, an 8-pressure gauge, a 9-hydrogen combustion chamber and a 10-load.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terminology used in the embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or device comprising such elements.
Referring to fig. 1, the utility model discloses a hydrogen energy conversion system based on solid hydrogen storage, which can comprise a hydrogen energy conversion device 5, a hydrogen mixing device 4, a solid hydrogen storage device 1 and a gaseous hydrogen storage device 3;
Hydrogen energy conversion device 5 includes hydrogen gas combustion chamber 9 a tail gas outlet; in a practical application scenario, the hydrogen energy conversion device 5 is a hydrogen internal combustion engine, a hydrogen gas turbine or a solid oxide fuel cell. When the hydrogen energy conversion device 5 is a hydrogen internal combustion engine or a hydrogen gas turbine, the hydrogen energy conversion device 5 includes an output shaft connected to the load 10. The output shaft may be directly connected to a structure requiring work, such as an automobile, factory, etc. When the hydrogen energy conversion device 5 is a solid oxide fuel cell, the hydrogen energy conversion device 5 includes an electrical energy output connected to the load 10. The electric energy output by the electric energy output end can be stored or can be directly connected with the electric end for small-size.
The utility model adopts a hydrogen internal combustion engine, a hydrogen gas turbine or a solid oxide fuel cell, mainly considers the common characteristics of the three, and firstly, hydrogen is needed, and secondly, high-temperature tail gas is generated, and the temperature is far more than 300 ℃. The generated high-temperature tail gas can provide heat sources for the hydrogen release reaction of the solid hydrogen storage device 1, and compared with the existing high-temperature tail gas which is mostly used for heating or discharging, the energy utilization rate of the whole system can be improved. Taking a hydrogen internal combustion engine as an example, the efficiency of the hydrogen internal combustion engine is about 35-45%, that is, only 1/3 of the energy released by the combustion of the fuel can be used as useful work output, and the rest 2/3 of the energy is dissipated into the atmosphere in the form of waste heat such as exhaust gas emission, cooling medium or heat radiation of the engine body, so that the internal combustion engine has low energy and becomes an important cause of large carbon emission of the internal combustion engine. If the waste heat can be effectively utilized, the efficiency (about 10-15%) of the internal combustion engine can be greatly improved. The solid-state hydrogen storage device 1 can provide a large amount of stable hydrogen for the scenes, replace the original fossil energy sources and reduce the carbon emission. The solid-state hydrogen storage device 1 has the dual effects of synergy and carbon reduction when applied to the application scenes.
Referring to fig. 1 and 2, the solid-state hydrogen storage device 1 is located at an exhaust outlet, in which solid-state hydrogen storage materials are stored and communicated with the hydrogen combustion chamber 9, and the solid-state hydrogen storage device 1 can directly utilize energy in high-temperature exhaust gas discharged from the exhaust outlet, so as to improve the energy utilization rate of the hydrogen energy conversion device 5. Wherein, the solid-state hydrogen storage device 1 can comprise a plurality of storage chambers, and the contact area between the solid-state hydrogen storage device 1 and the tail gas can be increased, thereby improving the heat exchange efficiency. The hydrogen energy conversion system of the utility model further comprises a heat exchange device, and in one application scenario, the heat exchange device can comprise a tail gas heat exchange channel communicated with the tail gas outlet and heat exchange fins arranged in the tail gas heat exchange channel, wherein the solid hydrogen storage device 1 is positioned in the tail gas heat exchange channel, and the heat exchange fins are positioned between the solid hydrogen storage device 1 and the inner wall of the tail gas heat exchange channel. The heat exchange fins can effectively transfer the heat in the tail gas to the solid hydrogen storage device 1, so that heat transfer is realized, and the utilization rate of the heat of the tail gas is improved. In another application scenario, the heat exchange device comprises a heat exchange shell and a heat exchange liner, wherein the heat exchange shell is made of heat insulation materials, the diameter of the heat exchange shell is matched with the diameter of a tail gas outlet of the hydrogen energy conversion device 5, the heat exchange liner is made of heat conduction materials and is fixed on the inside of the heat exchange shell, the heat exchange liner is an annular cylinder body, a plurality of bulges extending towards an axis are arranged on the inner wall of the heat exchange liner, the distance between every two adjacent bulges is matched with the size of a storage chamber of the solid-state hydrogen storage device 1, a plurality of spiral channels are arranged in the inside of the heat exchange liner, a plurality of straight-line channels are arranged in the bulges of the heat exchange liner along the axis direction of the heat exchange liner, inlets of the spiral channels and the straight-line channels are communicated with the tail gas outlet, and the outlets are far away from the tail gas outlet. Through the arrangement of the heat exchange liner, the spiral channel and the linear channel, the tail gas energy discharged by the hydrogen energy conversion device 5 can be recycled. Through the arrangement of the spiral channel, the path of the tail gas in the heat exchange liner can be increased, so that the utilization of the heat of the tail gas is further improved. In addition, through the straight line passageway that sets up, can be when realizing utilizing the tail gas heat, heat the tail gas at spiral passageway rear portion, make it can improve the utilization ratio to tail gas heat, can also heat the solid-state hydrogen storage material of apotheca rear end to guarantee the hydrogen homogeneity of putting of solid-state hydrogen storage material in the solid-state hydrogen storage device 1.
The gaseous hydrogen storage device 3 stores hydrogen therein and communicates with the hydrogen combustion chamber 9. The initial starting of the hydrogen energy conversion device 5 can be realized through the arranged gaseous hydrogen storage device 3, so that the starting hydrogen can be provided for the hydrogen energy conversion device 5 in an initial stage, and the hydrogen is stopped to be conveyed into the hydrogen energy conversion device 5 after the solid hydrogen storage device 1 works stably (i.e. generates stable hydrogen).
In an actual application scenario, the hydrogen energy conversion system of the present utility model may further include a first pipeline and a second pipeline; the hydrogen mixing device 4 may include a mixing buffer chamber in communication with the hydrogen combustion chamber 9; the solid-state hydrogen storage device 1 is communicated with the mixing buffer chamber through a first pipeline, and the gaseous hydrogen storage device 3 is communicated with the mixing buffer chamber through a second pipeline. By arranging the mixing buffer chamber, the situation that hydrogen is not consistent or the hydrogen pressure is unstable when the solid hydrogen storage device 1 and the gaseous hydrogen storage device 3 are independently introduced into the hydrogen energy conversion device 5 can be avoided, and the situation that the hydrogen energy conversion device is down or cannot continuously run is caused. The mixing buffer chamber can also mix the hydrogen of the solid hydrogen storage device 1 and the hydrogen of the gaseous hydrogen storage device 3, so that the hydrogen introduced into the hydrogen energy conversion device 5 has a preset pressure in the process of continuously releasing the hydrogen of the solid hydrogen storage device 1, and the conditions required by hydrogen energy conversion in the hydrogen energy conversion device 5 can be met. In general, the utility model can improve the operational stability of the hydrogen energy conversion device 5 by means of the mixing buffer chamber.
In an actual application scene, the first pipeline is communicated with the plurality of storage chambers, and hydrogen in the plurality of storage chambers is introduced into the mixing buffer chamber. Wherein, all be equipped with hydrogen storage valve 7 and manometer 8 on first pipeline and the second pipeline, hydrogen mixing arrangement 4 still includes the controller with hydrogen storage valve 7 and manometer 8 communication connection. The hydrogen supply rate of the solid-state hydrogen storage device 1 can be controlled by the hydrogen storage valve 7 of the first pipeline, the hydrogen supply rate of the gaseous hydrogen storage device 3 can be controlled by the hydrogen storage valve 7 of the second pipeline, and the hydrogen pressure in the first pipeline and the second pipeline can be monitored by the pressure gauge 8 and data can be transmitted to the controller. After the hydrogen generated by the solid hydrogen storage device 1 reaches the preset pressure, the controller gradually opens the hydrogen storage valve 7 on the first pipeline, and the hydrogen in the first pipeline and the hydrogen in the second pipeline enter the mixing buffer chamber to be mixed, so that the hydrogen energy conversion device 5 is supplied with energy together. After the hydrogen release pressure of the solid-state hydrogen storage device 1 is stabilized, the hydrogen storage valve 7 on the second pipeline can be closed, and the hydrogen energy conversion device 5 is completely driven by the hydrogen in the first pipeline. Further, when the hydrogen release pressure of the solid hydrogen storage device 1 is unstable, the controller controls the hydrogen storage valve 7 on the second pipeline to supplement hydrogen, so that the hydrogen in the first pipeline and the hydrogen in the second pipeline are mixed in the mixing buffer chamber to reach the preset pressure. In addition, all be equipped with check valve 6 on first pipeline and second pipeline, can avoid when the hydrogen pressure in first pipeline and the second pipeline is different through setting up check valve 6, hydrogen reverse entering first pipeline or second pipeline causes hydrogen energy conversion device 5 unable realization energy conversion under the predetermined condition. Furthermore, the first pipeline is also provided with a cooler 2, so that the hydrogen generated by the solid hydrogen storage device 1 can be cooled, and potential safety hazards caused by conveying high-temperature hydrogen are avoided.
The hydrogen energy conversion system of the utility model takes a hydrogen gas turbine as an example to describe the working mode, and comprises the following specific steps:
S1, a hydrogen storage valve of the second pipeline is opened, and hydrogen in the gaseous hydrogen storage device enters the mixing buffer chamber through the hydrogen storage valve and the one-way valve under the action of pressure.
S2: the hydrogen energy conversion device consumes hydrogen and sucks air for combustion;
S3.1: the gas is combusted, a turbine impeller of the hydrogen energy conversion device is driven to rotate along a main shaft of the turbine, and torque is transmitted to a load to be driven by an output shaft;
S3.2: after combustion, the high-temperature tail gas is discharged, part of heat is returned to an air inlet of the hydrogen combustion chamber by an internal circulation system of the hydrogen energy conversion device to heat air, and part of the heat is absorbed by heat exchange fins in the heat exchange device;
S4: continuing the steps S1-S3, and transferring heat to the solid-state hydrogen storage device through the heat exchange device;
S5: after the solid-state hydrogen storage device reaches the reaction temperature, the solid-state hydrogen storage material is decomposed to generate hydrogen, the pressure of the first pipeline rises, and the cooler cools the released hydrogen;
S6: after the first pipeline reaches the preset pressure, the controller gradually opens a hydrogen storage valve on the first pipeline, and hydrogen in the first pipeline and hydrogen in the second pipeline enter a mixing buffer chamber to be mixed, and simultaneously supplies energy for the hydrogen energy conversion device;
And S7.1, after the pressure of the first pipeline is stable, closing a hydrogen storage valve on the second pipeline, wherein the hydrogen energy conversion device is completely driven by the hydrogen of the first pipeline.
S7.2: the pressure of the first pipeline fluctuates due to temperature and power, and the controller controls the hydrogen storage valve on the second pipeline to supplement the needed hydrogen by using the gaseous hydrogen storage device.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model. It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The hydrogen energy conversion system based on the solid-state hydrogen storage is characterized by comprising a hydrogen energy conversion device, a hydrogen mixing device, a solid-state hydrogen storage device and a gaseous hydrogen storage device;
The hydrogen energy conversion device comprises a hydrogen combustion chamber and a tail gas outlet;
The solid hydrogen storage device is positioned at the tail gas outlet, is internally stored with solid hydrogen storage materials and is communicated with the hydrogen mixing device;
The gaseous hydrogen storage device stores hydrogen in the gaseous hydrogen storage device and is communicated with the hydrogen mixing device;
The hydrogen mixing device is communicated with the hydrogen combustion chamber and is used for introducing hydrogen with a preset pressure into the hydrogen combustion chamber.
2. The hydrogen energy conversion system of claim 1, wherein the hydrogen energy conversion system comprises a first conduit and a second conduit;
The hydrogen mixing device comprises a mixing buffer chamber communicated with the hydrogen combustion chamber;
The solid-state hydrogen storage device is communicated with the mixing buffer chamber through a first pipeline, and the gaseous hydrogen storage device is communicated with the mixing buffer chamber through a second pipeline.
3. The hydrogen energy conversion system according to claim 2, wherein the first pipeline and the second pipeline are provided with a hydrogen storage valve and a pressure gauge, and the hydrogen mixing device further comprises a controller in communication connection with the hydrogen storage valve and the pressure gauge.
4. The hydrogen energy conversion system according to claim 2, wherein the first pipe and the second pipe are each provided with a check valve.
5. The hydrogen energy conversion system according to any one of claims 2 to 4, wherein a cooler is further provided on the first pipe.
6. The hydrogen energy conversion system of claim 1, further comprising a heat exchange device comprising a tail gas heat exchange channel in communication with the tail gas outlet and heat exchange fins disposed within the tail gas heat exchange channel, the solid state hydrogen storage device being located within the tail gas heat exchange channel, the heat exchange fins being located between the solid state hydrogen storage device and an inner wall of the tail gas heat exchange channel.
7. The hydrogen energy conversion system according to claim 1 or 6, wherein the solid state hydrogen storage device comprises a plurality of storage chambers, each of the plurality of storage chambers being in communication with the first conduit.
8. The hydrogen energy conversion system according to claim 1, wherein the hydrogen energy conversion device is a hydrogen internal combustion engine, a hydrogen gas turbine, or a solid oxide fuel cell.
9. The hydrogen energy conversion system of claim 8, wherein the hydrogen energy conversion device is a hydrogen internal combustion engine or a hydrogen gas turbine, and the hydrogen energy conversion device includes an output shaft coupled to the load.
10. The hydrogen energy conversion system of claim 8, wherein the hydrogen energy conversion device is a solid oxide fuel cell and the hydrogen energy conversion device includes an electrical power output coupled to the load.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322443790.8U CN220856623U (en) | 2023-09-08 | 2023-09-08 | Hydrogen energy conversion system based on solid-state hydrogen storage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322443790.8U CN220856623U (en) | 2023-09-08 | 2023-09-08 | Hydrogen energy conversion system based on solid-state hydrogen storage |
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| CN220856623U true CN220856623U (en) | 2024-04-26 |
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