CN215981985U - Electrical heating type metal hydrogen storage and release system - Google Patents
Electrical heating type metal hydrogen storage and release system Download PDFInfo
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- CN215981985U CN215981985U CN202121259078.7U CN202121259078U CN215981985U CN 215981985 U CN215981985 U CN 215981985U CN 202121259078 U CN202121259078 U CN 202121259078U CN 215981985 U CN215981985 U CN 215981985U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
An electric heating type metal hydrogen storage and discharge system comprises a hydrogen storage container, wherein the side surface of the hydrogen storage container is respectively provided with an air inlet and an air outlet, and the air inlet is connected with a high-pressure air blowing device through a cold air pipeline; the inner cavity of the hydrogen storage container is provided with a plurality of hydrogen storage metal tanks, the hydrogen outlet end of each hydrogen storage metal tank is connected with a first pipeline, the first pipeline is respectively connected with a second pipeline and a third pipeline through a tee joint, the second pipeline is connected with a hydrogen fuel cell, the end part of the third pipeline is connected with a hydrogen source, the hydrogen storage metal tanks are internally provided with electric heating pipes, the electric heating pipes penetrate through the bottoms of the hydrogen storage metal tanks and the hydrogen storage container and are hermetically connected with the hydrogen storage metal tanks, and the input ends of the electric heating pipes are electrically connected with a heating controller. The utility model overcomes the defects of the prior art, can more directly finish heat transfer, has no loss in the heat transfer process, has high system starting speed, and can effectively reduce the weight of the system by matching with the multi-pipe metal hydrogen storage container.
Description
Technical Field
The utility model relates to the technical field of metal hydrogen storage, in particular to an electric heating type metal hydrogen storage and discharge system.
Background
High-pressure hydrogen storage is the main hydrogen storage mode at present, the technology is mature, but the hydrogen storage density is low (about 2 percent), in order to reach higher hydrogen storage density, the hydrogen storage pressure needs to be improved, and the high-pressure hydrogen storage tank at present is mainly in the grades of 35MPa and 70 MPa. Although the high-pressure hydrogen storage can be matched with hydrogen-burning power generation, heating and hydrogen fuel cells, the use of the high-pressure hydrogen storage tank has great risk, so that the high-pressure hydrogen storage tank is difficult to be applied to the civil market in a large scale.
The low-temperature liquid is to cool the hydrogen to below-253 ℃ so as to liquefy the hydrogen, thereby realizing high-density storage (more than 10%). But the difficulty of temperature reduction and heat preservation is difficult to use in the civil market, and the method is only used in the field of aerospace at present.
The hydrogen storage of organic matter is to store hydrogen in organic matter under normal temperature and pressure, the hydrogen storage density of the technology is high (about 6%), but the purity of hydrogen released after the hydrogen storage of organic matter is limited, and the hydrogen can not be directly used in hydrogen fuel cell, and needs to be purified. Under the existing conditions, the cost of purifying hydrogen is very high, so that the organic hydrogen storage is generally used for hydrogen combustion power generation and heating.
The solid hydrogen storage at normal temperature and normal pressure is a technology of storing hydrogen by using metal hydride, the density of the hydrogen storage is higher (6-7.5 percent), and the hydrogen storage is at normal temperature and normal pressure in a container, and only needs to be heated when releasing hydrogen, so the solid hydrogen storage is safer, and can be used in more occasions such as buildings, vehicles and even households in the future. In the prior art, high-temperature heat conduction oil is mainly used as a medium for transferring heat, so that the effects of heat release during hydrogen charging and heating during hydrogen discharging are achieved. However, the high-temperature heat-conducting oil system has the disadvantages of complex structure, high energy consumption, slow start and poor reliability.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides the electric heating type metal hydrogen storage and discharge system, which overcomes the defects of the prior art, has reasonable design, can more directly finish heat transfer, has no loss in the heat transfer process, has high system starting speed, and can effectively reduce the weight of the system by matching with a multi-pipe metal hydrogen storage container. The system is in a modular design, can be matched according to needs, and can be widely applied to moving and fixing metal hydrogen storage equipment.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
an electric heating type metal hydrogen storage and discharge system comprises a hydrogen storage container, wherein the side surface of the hydrogen storage container is respectively provided with an air inlet and an air outlet, the air inlet is connected with one end of a cold air pipeline, the other end of the cold air pipeline is connected with the output end of a high-pressure air blowing device, and the air outlet is connected with an exhaust pipeline;
the hydrogen storage container inner chamber is provided with a plurality of hydrogen storage metal tank, the one end on first pipeline is connected to the hydrogen exit end of hydrogen storage metal tank, the other end on first pipeline is connected with second pipeline and third pipeline respectively through the tee bend, the tip on second pipeline is connected with hydrogen fuel cell's hydrogen entry end, the end connection hydrogen source on third pipeline, hydrogen storage metal tank internally mounted has electric heating pipe, electric heating pipe pass hydrogen storage metal tank and hydrogen storage container's bottom and with hydrogen storage metal tank sealing connection, electric heating pipe's input and heating controller electric connection.
Preferably, the first pipeline, the second pipeline and the third pipeline are respectively provided with a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, and the first pipeline is also fixedly provided with a cooler and a first pressure sensor.
Preferably, a first temperature sensor and a flowmeter are respectively installed on the cold air pipeline, and a second temperature sensor is fixedly installed on the exhaust pipeline.
Preferably, temperature sensors are fixedly mounted in the hydrogen storage metal tanks.
Preferably, a pressure reducer, a mass flow controller and a second pressure sensor are fixedly mounted on the second pipeline respectively.
Preferably, the electric quantity output end of the hydrogen fuel cell is connected with the electric quantity input ends of the lithium battery and the heating controller, the water discharge end of the hydrogen fuel cell is connected with the electrolytic water tank through a pipeline, the hydrogen outlet end of the electrolytic water tank is connected with the hydrogen compressor through a pipeline, and the output end of the hydrogen compressor is communicated with the third pipeline.
Preferably, the electric quantity input end of lithium cell still is connected with solar cell's electric quantity output end, the electric quantity output end of lithium cell respectively with high-pressure air-blast device, heating controller and hydrogen compressor electric connection.
Preferably, the high-pressure air blowing device comprises an air compressor and a compressed air storage tank, the output end of the air compressor is connected with the air inlet end of the compressed air storage tank, and the air outlet end of the compressed air storage tank is connected with a cold air pipeline.
Preferably, the high pressure air blowing device is a high pressure fan.
The utility model provides an electric heating type metal hydrogen storage and discharge system. The method has the following beneficial effects: the heat transfer can be completed more directly, the heat transfer process is not lost, the starting speed of the system is high, and the weight of the system can be effectively reduced by matching with the multi-pipe metal hydrogen storage container. The system is in a modular design, can be matched according to needs, and can be widely applied to moving and fixing metal hydrogen storage equipment.
Drawings
In order to more clearly illustrate the present invention or the prior art solutions, the drawings that are needed in the description of the prior art will be briefly described below.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a portion of the present invention;
the reference numbers in the figures illustrate:
1. a hydrogen storage vessel; 2. an air inlet; 3. an exhaust port; 4. a cold air duct; 5. a high pressure blower device; 6. an exhaust duct; 7. a hydrogen storage metal can; 8. a first pipeline; 9. a second pipeline; 10. A third pipeline; 11. a hydrogen fuel cell; 12. an electric heating tube; 13. a heating controller; 14. a first solenoid valve; 15. a second solenoid valve; 16. a third electromagnetic valve; 17. a first temperature sensor; 18. a second temperature sensor; 19. a flow meter; 20. a cooler; 21. a first pressure sensor; 22. a temperature sensor; 23. a pressure reducer; 24. a mass flow controller; 25. A second pressure sensor; 26. a lithium battery; 27. an electrolytic water tank; 28. a hydrogen compressor; 29. A solar cell.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings.
In the first embodiment, as shown in fig. 1-2, an electrically heated metal hydrogen storage and discharge system includes a hydrogen storage container 1, a gas inlet 2 and a gas outlet 3 are respectively disposed on side surfaces of the hydrogen storage container 1, the gas inlet 2 is connected to one end of a cold air duct 4, the other end of the cold air duct 4 is connected to an output end of a high-pressure air blower 5, and the gas outlet 3 is connected to a gas exhaust duct 6;
the inner cavity of the hydrogen storage container 1 is provided with a plurality of hydrogen storage metal tanks 7, the hydrogen outlet end of the hydrogen storage metal tanks 7 is connected with one end of a first pipeline 8, the other end of the first pipeline 8 is respectively connected with a second pipeline 9 and a third pipeline 10 through a tee joint, the end part of the second pipeline 9 is connected with the hydrogen inlet end of a hydrogen fuel cell 11, the end part of the third pipeline 10 is connected with a hydrogen source, the hydrogen storage metal tanks 7 are internally provided with electric heating pipes 12, the electric heating pipes 12 penetrate through the bottoms of the hydrogen storage metal tanks 7 and the hydrogen storage container 1 and are hermetically connected with the hydrogen storage metal tanks 7, and the input ends of the electric heating pipes 12 are electrically connected with a heating controller 13.
In this embodiment, the first, second and third pipelines 8, 9 and 10 are respectively provided with a first solenoid valve 14, a second solenoid valve 15 and a third solenoid valve 16, and the first pipeline 8 is also fixedly provided with a cooler 20 and a first pressure sensor 21.
The working principle is as follows:
first, taking a solid magnesium-based hydrogen storage material as an example, when the magnesium-based hydrogen storage material is charged and discharged with hydrogen, the reaction equation is as follows:
namely, exothermic reaction is carried out when hydrogen is charged, endothermic reaction is carried out when hydrogen is discharged, and the ideal reaction temperature is 350 ℃.
When discharging hydrogen, the heating controller 13 is started to control and heat the electric heating pipe 12, in this embodiment, the electric heating pipe 12 is a radiant electric heating pipe, the electric heating pipe 12 heats the hydrogen storage material in the hydrogen storage metal tank 7 through the electric heating pipe 12, when the hydrogen storage container is heated to 200 ℃, a small amount of hydrogen is discharged, the hydrogen discharging speed continuously rises along with the rise of the temperature, and the maximum hydrogen discharging speed is reached until 380 ℃, and at this time, the hydrogen output quantity can be controlled by adjusting the heating power of the electric heating pipe 12 according to the hydrogen using requirement. The hydrogen generated by the hydrogen storage metal tank 7 is cooled to below 80 ℃ by a cooler 20 on the first pipeline 8, then passes through the first pressure sensor 21 to the first electromagnetic valve 14, and when the pressure monitored by the first pressure sensor 21 exceeds 1.3MPa, the first electromagnetic valve 14 and the second electromagnetic valve 15 are opened to output the hydrogen. When the work is stopped, the electric heating pipe 12, the first electromagnetic valve 14 and the second electromagnetic valve 15 are closed, and the system can be completely closed. If the first pressure sensor 21 fails to exceed a value of 0.3MPa at start-up or operation, it can be assumed that the hydrogen gas in the multi-tube hydrogen storage vessel has been exhausted and needs to be charged.
In the present embodiment, the temperature sensors 22 may be fixedly mounted in the hydrogen storage metal tanks 7. The temperature in each hydrogen storage metal tank 7 in the hydrogen storage container 1 is monitored by the temperature sensor 22, and the heating controller 13 can control the heating power according to the temperature data of the temperature sensor 22 to ensure that the temperature in each hydrogen storage metal tank 7 is below 550 ℃. At the same time, the temperature sensor 22 can also be used to monitor whether the electric heating tubes 12 are working properly.
When charging hydrogen, firstly starting the electric heating pipe 12 through the heating controller 13 to preheat the hydrogen storage metal tank 7 to 250 ℃, then opening the first electromagnetic valve 14 and the third electromagnetic valve 16 to enable hydrogen to enter the hydrogen storage metal tank 7 through the third pipeline 10 and the first pipeline 8, and because heat is released during charging hydrogen, after charging hydrogen for a period of time, closing the electric heating pipe 12, opening the high-pressure air blowing device 5, and conveying air into the hydrogen storage container 1 through the high-pressure air blowing device 5 for cooling;
in this embodiment, a first temperature sensor 17 and a flow meter 19 may be respectively mounted on the cold air duct 4, and a second temperature sensor 18 may be fixedly mounted on the exhaust duct 6. Therefore, when the on-off of the electric heating pipe 12 is controlled, the judgment can be carried out through the first temperature sensor 17 and the second temperature sensor 18, and when the numerical value of the second temperature sensor 18 is greater than that of the first temperature sensor 17, the electric heating pipe 12 can be closed and the high-pressure air blowing device 5 can be opened for cooling; if the hydrogen storage container 1 cannot be cooled effectively during charging, the third electromagnetic valve 16 can be closed when the value of the second temperature sensor 18 reaches 480 ℃ or the value of the temperature sensor 22 is greater than 520 ℃, the charging can be temporarily stopped, and the third electromagnetic valve 16 can be opened to resume the charging when the value of the second temperature sensor 18 is reduced to below 400 ℃. When the values of the first temperature sensor 17 and the second temperature sensor 18 are close and the value of the temperature sensor 22 is less than 250 ℃, the hydrogen charging is considered to be finished, the first electromagnetic valve 14 and the third electromagnetic valve 16 are closed, and the hydrogen charging is stopped.
Through foretell technical scheme and the work flow of putting hydrogen or filling hydrogen, can realize solid-state metal hydrogen storage device's trend practical, adopt heating controller 13 heating to start through this application system, hydrogen direct output, hydrogen output and heating power are directly proportional, can provide stable normal atmospheric temperature, ordinary pressure hydrogen source, and the system is simple, and control is convenient, safe in utilization.
In the second embodiment, as a further scheme of the first embodiment, a pressure reducer 23, a mass flow controller 24 and a second pressure sensor 25 are respectively fixedly mounted on the second pipeline 9. The hydrogen conveyed in the second pipeline 9 is reduced to 1.3MPa through the pressure reducer 23, and then the hydrogen with the flow rate of 1g/s and the pressure of 1MPa is sent to the hydrogen fuel cell 11 for combustion power generation under the control of the second pressure sensor 25, wherein the numerical value of the second pressure sensor 25 can be used as the control parameter of the first mass flow controller 25.
In a third embodiment, as a further scheme of the first embodiment, an electric quantity output end of the hydrogen fuel cell 11 is connected with electric quantity input ends of the lithium battery 26 and the heating controller 13, a water discharge end of the hydrogen fuel cell 11 is connected with an electrolytic water tank 27 through a pipeline, a hydrogen gas outlet end of the electrolytic water tank 27 is connected with a hydrogen gas compressor 28 through a pipeline, and an output end of the hydrogen gas compressor 28 is communicated with the third pipeline 10.
The electric quantity input end of the lithium battery 26 is further connected with the electric quantity output end of the solar battery 29, and the electric quantity output end of the lithium battery 26 is electrically connected with the high-pressure air blowing device 5, the electrolytic water tank 27, the heating controller 13 and the hydrogen compressor 28 respectively.
Therefore, in daytime, the solar battery 29 generates power to be charged into the lithium battery 26, when certain electric quantity exists, the electrolytic water tank 27 is driven to generate hydrogen, the hydrogen is pressurized by the hydrogen compressor 28 and is charged into the multi-tube hydrogen storage container through the electromagnetic valve 3 and the electromagnetic valve 2, and the lithium battery simultaneously drives the fan 2 to cool the multi-tube hydrogen storage container. At night, the lithium battery drives the electric heating pipe X to heat the multi-pipe hydrogen storage container, hydrogen is also discharged and sent to the hydrogen fuel cell 11 through the second electromagnetic valve 15, the first electromagnetic valve 14, the pressure reducer 23 and the mass flow controller 24, the electric part generated by the hydrogen fuel cell 11 drives the electric heating pipe 12, and the part is sent back to the lithium battery 26 to be output.
In a fourth embodiment, as a further scheme of the first embodiment, the high-pressure air blower device 10 may adopt a high-pressure blower structure or a combined structure of an air compressor and a compressed air storage tank, wherein an output end of the air compressor is connected with an air inlet end of the compressed air storage tank, and an air outlet end of the compressed air storage tank is connected with the cold air duct 4. When the hydrogen storage container needs to be cooled, the high-pressure fan or the compressed air storage tank is used for providing high-pressure air needed for cooling, and the rapid cooling of the hydrogen storage container is assisted.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An electrical heating type metal hydrogen storage and discharge system is characterized in that: the device comprises a hydrogen storage container (1), wherein the side surface of the hydrogen storage container (1) is respectively provided with an air inlet (2) and an air outlet (3), the air inlet (2) is connected with one end of a cold air pipeline (4), the other end of the cold air pipeline (4) is connected with the output end of a high-pressure air blowing device (5), and the air outlet (3) is connected with an air exhaust pipeline (6);
the hydrogen storage container (1) inner chamber is provided with a plurality of hydrogen storage metal tank (7), the one end of first pipeline (8) is connected to the hydrogen exit end of hydrogen storage metal tank (7), the other end of first pipeline (8) is connected with second pipeline (9) and third pipeline (10) respectively through the tee bend, the tip of second pipeline (9) is connected with the hydrogen entry end of hydrogen fuel cell (11), the end connection hydrogen source of third pipeline (10), hydrogen storage metal tank (7) internally mounted has electric heating pipe (12), electric heating pipe (12) pass the bottom of hydrogen storage metal tank (7) and hydrogen storage container (1) and with hydrogen storage metal tank (7) sealing connection, the input and the heating controller (13) electric connection of electric heating pipe (12).
2. An electrically heated metal hydrogen storage and discharge system according to claim 1, wherein: the device is characterized in that a first electromagnetic valve (14), a second electromagnetic valve (15) and a third electromagnetic valve (16) are respectively arranged on the first pipeline (8), the second pipeline (9) and the third pipeline (10), and a cooler (20) and a first pressure sensor (21) are further fixedly arranged on the first pipeline (8).
3. An electrically heated metal hydrogen storage and discharge system according to claim 1, wherein: install first temperature sensor (17) and flowmeter (19) on cold wind pipeline (4) respectively, fixed mounting has second temperature sensor (18) on exhaust duct (6).
4. An electrically heated metal hydrogen storage and discharge system according to claim 1, wherein: temperature sensors (22) are fixedly arranged in the hydrogen storage metal tanks (7).
5. An electrically heated metal hydrogen storage and discharge system according to claim 1, wherein: and a pressure reducer (23), a mass flow controller (24) and a second pressure sensor (25) are respectively and fixedly arranged on the second pipeline (9).
6. An electrically heated metal hydrogen storage and discharge system according to claim 1, wherein: the electric quantity output end of the hydrogen fuel cell (11) is connected with the electric quantity input ends of the lithium battery (26) and the heating controller (13), the water discharge end of the hydrogen fuel cell (11) is connected with the electrolytic water tank (27) through a pipeline, the hydrogen outlet end of the electrolytic water tank (27) is connected with the hydrogen compressor (28) through a pipeline, and the output end of the hydrogen compressor (28) is communicated with the third pipeline (10).
7. An electrically heated metal hydrogen storage and discharge system according to claim 6, wherein: the electric quantity input end of the lithium battery (26) is also connected with the electric quantity output end of the solar battery (29), and the electric quantity output end of the lithium battery (26) is electrically connected with the high-pressure air blowing device (5), the heating controller (13), the electrolytic water tank (27) and the hydrogen compressor (28) respectively.
8. An electrically heated metal hydrogen storage and discharge system according to claim 1, wherein: the high-pressure air blowing device (5) comprises an air compressor and a compressed air storage tank, the output end of the air compressor is connected with the air inlet end of the compressed air storage tank, and the air outlet end of the compressed air storage tank is connected with the cold air pipeline (4).
9. An electrically heated metal hydrogen storage and discharge system according to claim 1, wherein: the high-pressure air blowing device (5) is a high-pressure fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121259078.7U CN215981985U (en) | 2021-06-07 | 2021-06-07 | Electrical heating type metal hydrogen storage and release system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121259078.7U CN215981985U (en) | 2021-06-07 | 2021-06-07 | Electrical heating type metal hydrogen storage and release system |
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| CN215981985U true CN215981985U (en) | 2022-03-08 |
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| CN202121259078.7U Active CN215981985U (en) | 2021-06-07 | 2021-06-07 | Electrical heating type metal hydrogen storage and release system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236969A (en) * | 2021-06-07 | 2021-08-10 | 福托伟阀门(上海)有限公司 | Electrical heating type metal hydrogen storage and release system |
| CN114659025A (en) * | 2022-03-25 | 2022-06-24 | 海南天宇科技集团有限公司 | Hydrogen cylinder module with low-pressure alloy hydrogen storage bottle matched with medium-pressure hydrogen storage bottle |
-
2021
- 2021-06-07 CN CN202121259078.7U patent/CN215981985U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236969A (en) * | 2021-06-07 | 2021-08-10 | 福托伟阀门(上海)有限公司 | Electrical heating type metal hydrogen storage and release system |
| CN113236969B (en) * | 2021-06-07 | 2024-04-26 | 福托伟阀门(上海)有限公司 | Electrical heating type metal hydrogen storage and release system |
| CN114659025A (en) * | 2022-03-25 | 2022-06-24 | 海南天宇科技集团有限公司 | Hydrogen cylinder module with low-pressure alloy hydrogen storage bottle matched with medium-pressure hydrogen storage bottle |
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