Hydrogen release reactor and hydrogen fuel power supply device

Abstract

The utility model discloses a hydrogen release reactor and a hydrogen fuel power supply device. The hydrogen release reactor comprises a reaction barrel, a barrel cover and a cooling fan. A heat dissipation structure is arranged on the outer side of the barrel wall of the reaction barrel, and the heat dissipation fan is arranged at the bottom of the reaction barrel. On one hand, the heat dissipation structure is arranged on the outer side of the barrel wall of the reaction barrel, so that the heat dissipation efficiency of the reaction barrel is improved, and the temperature of the reaction barrel is reduced; and on the other hand, the heat dissipation fan mounted at the bottom of the reaction barrel enhances the air flow rate around the heat dissipation structure, so that the heat of the heat dissipation structure is taken away, and the reaction barrel is cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy and solid-state storage of hydrogen energy, and in particular to a hydrogen release reactor and a hydrogen fuel power supply device. Background Art

[0002] Hydrolysis hydrogen storage materials are a type of solid-state hydrogen storage material. Among the various hydrogen storage materials, hydrolysis hydrogen production materials are irreversible. They store hydrogen in the form of compounds and produce high-purity hydrogen through a hydrolysis reaction. These materials are suitable for on-site hydrogen production, and the resulting hydrogen can be used as a hydrogen source for hydrogen fuel cells. Common solid-state hydrogen storage materials include LiH, MgH2, AlH3, LiAlH4, and NaAlH4.

[0003] Taking LiAlH4 as an example, the chemical reaction equation is:

[0004] LiAlH4+4H2O=LiOH+Al(OH)3↓+4H2↑

[0005] A large amount of heat is generated during the hydrolysis reaction. On the one hand, excessively high temperatures will affect the progress of the chemical reaction and cause uncontrollable factors in the reaction. On the other hand, hydrogen fuel power supply devices generally integrate hydrogen release reactors and hydrogen fuel cells. If the temperature of the hydrogen release reactor is too high, the heat will be transferred to the hydrogen fuel cell, causing the hydrogen fuel cell to be in danger.

[0006] Therefore, how to effectively cool the hydrogen release reactor is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0007] The utility model provides a hydrogen release reactor and a hydrogen fuel power supply device, which can solve the technical problem of excessively high temperature of the hydrogen release reactor in the prior art. The technical solution is as follows:

[0008] In one aspect, a hydrogen release reactor is provided, comprising:

[0009] A reaction barrel, wherein the outer side of the barrel wall of the reaction barrel has a heat dissipation structure;

[0010] a barrel cover, the barrel cover being sealed and connected to the barrel opening at the top of the reaction barrel; and

[0011] A heat dissipation fan is located at the bottom of the reaction barrel.

[0012] Optionally, the heat dissipation structure is a plurality of heat dissipation spokes arranged on the outer side of the cylinder wall of the reaction barrel, and each of the heat dissipation spokes is parallel to the central axis of the reaction barrel.

[0013] Optionally, the reaction barrel further includes a sleeve, which is sleeved outside the reaction barrel, and the inner surface of the sleeve is connected to each of the heat dissipation spokes, and a plurality of heat dissipation spokes and the sleeve form a plurality of gas channels.

[0014] Optionally, the heat dissipation fan is an induced draft fan, and the air inlet of the induced draft fan is close to one end of the bottom of the reaction barrel where the multiple gas channels are close to each other.

[0015] Optionally, the heat dissipation fan is a blower, and the air outlet of the blower is close to one end of the bottom of the reaction barrel where the multiple gas channels are close to each other.

[0016] Optionally, the reaction barrel further includes a filter screen, which is arranged in the reaction barrel near the barrel opening.

[0017] In another aspect, a hydrogen fuel cell power supply device is provided, comprising:

[0018] A washing bottle, the washing bottle having a first air inlet and a first air outlet, wherein the first air outlet is higher than the first air inlet, and the washing bottle is filled with a washing liquid;

[0019] a hydrogen fuel cell having a second air inlet;

[0020] And, as the above hydrogen release reactor, the hydrogen release reactor has a second gas outlet;

[0021] The second air outlet is communicated with the first air inlet via an air duct, and the first air outlet is communicated with the second air inlet via an air duct.

[0022] Optionally, a drain port is provided at the bottom of the gas washing bottle, and the drain port is connected to a drain valve.

[0023] Optionally, the hydrogen fuel power supply device further includes a safety valve, which is connected to the air duct between the first air outlet and the second air inlet.

[0024] Optionally, the hydrogen fuel power supply device further includes an energy storage battery having a charging interface and a discharging interface, wherein the charging interface is electrically connected to the power output end of the hydrogen fuel cell. The beneficial effects brought about by the technical solution provided in the embodiment of the present application include at least:

[0025] A hydrogen release reactor comprises a reaction barrel, a barrel cover, and a heat dissipation fan. The reaction barrel has a heat dissipation structure on its outer wall, and the heat dissipation fan is installed at its bottom. The heat dissipation structure on the outer wall of the reaction barrel improves heat dissipation efficiency and reduces the temperature of the reaction barrel. Furthermore, the heat dissipation fan installed at the bottom of the reaction barrel increases the air flow rate around the heat dissipation structure, thereby removing heat from the heat dissipation structure and cooling the reaction barrel, thereby improving the safety of the hydrogen release reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1 A schematic perspective view of a hydrogen release reactor provided in an embodiment of the present application;

[0028] Figure 2 for Figure 1 Exploded schematic diagram of the hydrogen release reactor;

[0029] Figure 3 for Figure 1 A longitudinal cross-sectional view of a hydrogen release reactor;

[0030] Figure 4 for Figure 1 A transverse cross-sectional view of a hydrogen release reactor;

[0031] Figure 5 Schematic diagram of the principle of the hydrogen fuel power supply device provided in an embodiment of the present application.

[0032] In the above diagram:

[0033] 000-Hydrogen fuel power supply device; 100-Hydrogen release reactor; 101-Reaction barrel; 1011-Heat dissipation spokes; 1012-Cylinder sleeve; 102-Barrel cover; 103-Heat dissipation fan; 104-Filter; 105-Second air outlet; 200-Gas washing bottle; 201-First air inlet; 202-First air outlet; 203-Drain outlet; 204-Drain valve; 300-Hydrogen fuel cell; 301-Second air inlet; 400-Safety valve; 500-Energy storage battery. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] The following description sets forth specific details to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in a variety of other ways than those described herein, and those skilled in the art may make similar generalizations without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Hydrolysis hydrogen storage materials are a type of solid-state hydrogen storage material. Among the various hydrogen storage materials, hydrolysis hydrogen production materials are irreversible. They store hydrogen in the form of compounds and produce high-purity hydrogen through a hydrolysis reaction. These materials are suitable for on-site hydrogen production, and the resulting hydrogen can be used as a hydrogen source for hydrogen fuel cells. Common solid-state hydrogen storage materials include LiH, MgH2, AlH3, LiAlH4, and NaAlH4.

[0037] Taking LiAlH4 as an example, the chemical reaction equation is:

[0038] LiAlH4+4H2O=LiOH+Al(OH)3↓+4H2↑

[0039] The hydrolysis reaction generates a large amount of heat. Excessively high temperatures can affect the chemical reaction, leading to uncontrollable reactions. Furthermore, hydrogen fuel cell power systems typically integrate a hydrogen release reactor and a hydrogen fuel cell. Excessively high temperatures in the hydrogen release reactor can transfer heat to the fuel cell, putting it at risk. Therefore, timely heat dissipation from the hydrogen release reactor to prevent it from overheating is a pressing technical challenge facing those skilled in the art.

[0040] According to the first aspect of the present application, a hydrogen release reactor is provided. Figure 1 and Figure 2 The hydrogen release reactor 100 may include: a reaction barrel 101, a barrel cover 102, and a heat dissipation fan 103. The outer wall of the reaction barrel 101 has a heat dissipation structure; the barrel cover 102 is sealed to the barrel opening at the top of the reaction barrel 101; and the heat dissipation fan 103 is located at the bottom of the reaction barrel 101. In the present application, on the one hand, by providing a heat dissipation structure on the outer wall of the reaction barrel 101, the wall area of ​​the reaction barrel 101 can be increased, thereby promoting heat dissipation. On the other hand, by installing the heat dissipation fan 103 at the bottom of the reaction barrel 101, the air flow rate around the heat dissipation structure can be increased, and the high-temperature air around the heat dissipation structure can be replaced with air at room temperature, which is beneficial for cooling the reaction barrel 101, thereby improving the safety of the hydrogen release reactor. The heat dissipation structure can also be a thin-walled structure provided on the outside of the reaction barrel 101 or a tubular structure with a heat dissipation medium. The heat dissipation structure can be made of materials such as aluminum with excellent thermal conductivity.

[0041] In the embodiment of the present application, the heat dissipation structure comprises a plurality of heat dissipation spokes 1011 disposed on the outer wall of the reaction barrel 101, each of which is parallel to the central axis of the reaction barrel 101. In this case, the heat dissipation spokes 1011 have a large area, and heat from the reaction barrel 101 is transferred to the heat dissipation spokes 1011, where it exchanges heat with the air, thereby reducing the temperature of the reaction barrel 101.

[0042] In the examples of this application, please refer to Figure 3 and Figure 4 The reaction barrel 101 further includes a sleeve 1012, which is sleeved over the reaction barrel 101. The inner surface of the sleeve 1012 is connected to each of the heat dissipation spokes 1011. The plurality of heat dissipation spokes 1011 and the sleeve 1012 form a plurality of gas channels. In this case, since the sleeve 1012 is connected to each of the heat dissipation spokes 1011, two adjacent heat dissipation spokes 1011 and the sleeve 1012 form a circumferentially closed gas channel with both ends connected. The air flow channel is then driven by the heat dissipation fan 103 installed at the bottom of the reaction barrel 101, thereby increasing the air flow rate and improving the heat dissipation efficiency.

[0043] In the embodiment of the present application, the heat dissipation fan 103 may be an induced draft fan, with its air inlet located near one end of the multiple gas channels near the bottom of the reaction barrel 101. The heat dissipation fan 103 may also be a blower, with its air outlet located near one end of the multiple gas channels near the bottom of the reaction barrel 101. This disclosure is not limited to this.

[0044] In the examples of this application, please refer to Figure 2 The reaction barrel 101 further includes a filter 104, which is disposed near the barrel opening in the reaction barrel 101. In this way, solid particles generated in the hydrogen production reaction barrel 101 will be blocked by the filter 104, thereby preventing the solid particles from clogging the air duct.

[0045] According to the second aspect of the present application, a hydrogen fuel power supply device is provided. Figure 5A hydrogen fuel cell power supply device 000 may include: a scrubbing bottle 200, a hydrogen fuel cell 300, and the aforementioned hydrogen release reactor 100. The scrubbing bottle 200 has a first air inlet 201 and a first air outlet 202, wherein the first air outlet 202 is higher than the first air inlet 201, and the scrubbing bottle 200 contains scrubbing liquid; the hydrogen fuel cell 300 has a second air inlet 301; and the hydrogen release reactor 100 has a second air outlet 105; the second air outlet 105 is connected to the first air inlet 201 via an air duct, and the first air outlet 202 is connected to the second air inlet 301 via an air duct. In this embodiment, a mixed gas containing hydrogen and water vapor is discharged from the second outlet of the hydrogen release reactor 100, enters the scrubbing bottle 200 through the air duct via the air inlet 201, and then flows into the scrubbing liquid below the liquid level in the scrubbing bottle 200. The scrubbing liquid cools the high-temperature, water-containing hydrogen entering the hydrogen release reactor 100 and condenses the water vapor, leaving only hydrogen. The hydrogen is then discharged from the first air outlet 202 and supplied to the hydrogen fuel cell 300 via the second air inlet 301. This improves the safety of the hydrogen fuel cell power supply device 000. The scrubbing liquid can be water, or other scrubbing liquids.

[0046] Furthermore, a drain port 203 is provided at the bottom of the washing bottle 200, and the drain port 203 is connected to a drain valve 204. In this way, when the washing bottle 200 has been in operation for a period of time and a large amount of impurities have been deposited in the washing liquid, the used washing liquid can be discharged through the drain port 203 and new washing liquid can be injected.

[0047] Furthermore, the hydrogen fuel cell power supply device 000 further includes a safety valve 400, which is connected to the air duct between the first air outlet 202 and the second air inlet 301. Thus, when the pressure of the hydrogen in the air duct entering the hydrogen fuel cell 300 exceeds the maximum operating pressure required by the hydrogen fuel cell 300, the safety valve 400 opens to release the excess hydrogen, thereby ensuring that the hydrogen supplied to the hydrogen fuel cell 300 is within a safe pressure range.

[0048] The hydrogen fuel cell power supply device 000 also includes an energy storage battery 500 having a charging port and a discharging port. The charging port is electrically connected to the power output terminal of the hydrogen fuel cell 300. The electricity generated by the hydrogen fuel cell 300 can be directly supplied to electrical appliances. When the hydrogen fuel cell 300 generates excess electricity, the excess electricity can be stored in the energy storage battery 500. When the hydrogen fuel cell 300 generates insufficient electricity, the energy storage battery 500 can output electricity for use by the electrical appliances, thereby improving the stability of the hydrogen fuel cell power supply device 000.

[0049] Although this specification has provided a detailed description of the present invention using general instructions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the scope of the present invention, are intended to fall within the scope of protection claimed herein.

Claims

1. A hydrogen release reactor, characterized in that include: A reaction barrel (101), wherein the outer side of the barrel wall of the reaction barrel (101) has a heat dissipation structure; a barrel cover (102), the barrel cover (102) being sealed and connected to the barrel opening at the top of the reaction barrel (101); and a heat dissipation fan (103), the heat dissipation fan (103) being located at the bottom of the reaction barrel (101); The heat dissipation structure is a plurality of heat dissipation spokes (1011) arranged on the outer side of the cylinder wall of the reaction barrel (101), and each heat dissipation spoke (1011) is parallel to the central axis of the reaction barrel (101); The reaction barrel (101) further comprises a sleeve (1012), which is sleeved outside the reaction barrel (101), and the inner surface of the sleeve (1012) is connected to each of the heat dissipation spokes (1011), and the plurality of heat dissipation spokes (1011) and the sleeve (1012) form a plurality of gas channels.

2. The hydrogen release reactor according to claim 1, characterized in that The heat dissipation fan (103) is an induced draft fan, and the air inlet of the induced draft fan is close to one end of the plurality of gas channels close to the bottom of the reaction barrel (101).

3. The hydrogen release reactor according to claim 1, characterized in that The heat dissipation fan (103) is a blower, and the air outlet of the blower is close to one end of the plurality of gas channels close to the bottom of the reaction barrel (101).

4. The hydrogen release reactor (100) according to claim 1, characterized in that The reaction barrel (101) further comprises a filter screen (104), and the filter screen (104) is arranged in the reaction barrel (101) at a position close to the barrel opening.

5. A hydrogen fuel power supply device, characterized in that: include: A washing bottle (200), the washing bottle (200) having a first air inlet (201) and a first air outlet (202), wherein the first air outlet (202) is higher than the first air inlet (201), and the washing bottle (200) is filled with a washing liquid; A hydrogen fuel cell (300), wherein the hydrogen fuel cell (300) has a second air inlet (301); And, the hydrogen release reactor (100) according to any one of claims 1 to 4, wherein the hydrogen release reactor (100) has a second gas outlet (105); The second air outlet (105) is in communication with the first air inlet (201) via an air duct, and the first air outlet (202) is in communication with the second air inlet (301) via an air duct.

6. The hydrogen fuel power supply device according to claim 5, characterized in that: The bottom of the gas washing bottle (200) is provided with a liquid discharge port (203), and the liquid discharge port (203) is connected to a liquid discharge valve (204).

7. The hydrogen fuel power supply device according to claim 5, characterized in that: The hydrogen fuel power supply device (000) further comprises a safety valve (400), wherein the safety valve (400) is connected to the air duct between the first air outlet (202) and the second air inlet (301).

8. The hydrogen fuel power supply device according to claim 5, characterized in that: The hydrogen fuel power supply device (000) further comprises an energy storage battery (500), wherein the energy storage battery (500) has a charging interface and a discharging interface, and the charging interface is electrically connected to the power output end of the hydrogen fuel cell (300).

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