Hydrogen production device and method based on aluminum-water reaction

Abstract

The invention discloses a hydrogen production device and method based on aluminum-water reaction. The hydrogen production device comprises a reaction container, a water inlet pipe, a hydrogen outlet pipe, a bearing assembly, an aluminum alloy bar, a blow-off pipe, a monitoring assembly and a controller. The bearing assembly is fixedly arranged in the reaction container, and the multiple aluminum alloy bars are located in the bearing assembly; the water inlet pipe, the blow-off pipe and the hydrogen outlet pipe are respectively communicated with the reaction container; all the aluminum alloy bars in the reaction container are always located below the liquid level; the aluminum alloy bar reacts with water to generate hydrogen and reaction heat; the monitoring assembly is used for acquiring pressure data, temperature data and liquid level data in the reaction container in real time and transmitting the data to the controller; the controller can control the on-off of the water inlet pipe according to temperature data and control the on-off of the blow-off pipe according to liquid level data, and reaction heat is taken out through the discharge of inlet water and a reaction solution, so that the temperature and the liquid level in the reaction container are dynamically stable; and the controller can control the on-off of the hydrogen outlet pipe according to the pressure data, so that the discharge of hydrogen is controlled, and the pressure in the reaction container is dynamically stable. The reaction rate of hydrogen can be controlled, large-scale preparation of hydrogen is achieved, stable supply of hydrogen is guaranteed, the structure is compact, and practicability is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydrogen production, and in particular relates to a hydrogen production device and method based on aluminum-water reaction. Background Art

[0002] Hydrogen energy has the advantages of high-density energy, cleanliness and high efficiency. The current hydrogen energy implementation strategy has become one of the important directions of our country. There are many methods for producing hydrogen energy on the market, and the production of hydrogen by aluminum-water reaction is considered to be one of the most promising methods.

[0003] However, in the process of aluminum and water reacting to generate hydrogen, aluminum powder is often used. Aluminum powder will react quickly with water first, so that the reaction rate is not a constant value. At the same time, the reaction rate is also affected by factors such as temperature and pressure, resulting in significant fluctuations in hydrogen production. This makes it difficult to control the reaction rate of hydrogen, and thus makes it difficult to provide a large and stable supply of hydrogen flow. In addition, aluminum-water hydrogen production also needs to overcome difficulties such as reaction product emissions and hydrogen purification, which places high demands on the structural design of the hydrogen production device. Summary of the invention

[0004] In view of this, the present invention provides a hydrogen production device and method based on aluminum-water reaction, which can control the reaction rate of hydrogen, realize large-scale preparation of hydrogen and ensure a stable supply of hydrogen, and has a compact structure and strong practicality.

[0005] The present invention is achieved through the following technical solutions:

[0006] A hydrogen production device based on aluminum-water reaction, comprising: a reaction container, a water inlet pipe, a hydrogen outlet pipe, a bearing assembly, an aluminum alloy bar, a sewage pipe, a monitoring assembly and a controller;

[0007] The bearing assembly is fixedly arranged in the reaction container, and a plurality of aluminum alloy bars are located in the bearing assembly;

[0008] The water inlet pipe, the sewage pipe and the hydrogen outlet pipe are respectively connected to the reaction container. The water inlet pipe is used to feed water into the reaction container, the sewage pipe is used to discharge the reaction solution; and the hydrogen outlet pipe is used to discharge hydrogen.

[0009] All aluminum alloy bars in the reaction vessel are always below the liquid surface; the aluminum alloy bars react with water to produce hydrogen and reaction heat;

[0010] The monitoring component is connected to the controller for communication; the monitoring component is used to obtain the pressure data, temperature data and liquid level data in the reaction container in real time and transmit them to the controller;

[0011] The controller can control the on-off of the water inlet pipe according to the temperature data, and the on-off of the sewage pipe according to the liquid level data. The reaction heat is discharged through the water inlet and the discharge of the reaction solution, so that the temperature and liquid level in the reaction container are dynamically stable.

[0012] The controller can control the opening and closing of the hydrogen outlet pipe according to the pressure data, thereby controlling the discharge of hydrogen and making the pressure in the reaction container dynamically stable.

[0013] Furthermore, the bearing assembly includes more than two support frames and a plurality of material frames; the more than two support frames are fixedly arranged in parallel in the reaction container;

[0014] The support frame is a frame structure, and a number of bayonet holes are arranged on the support frame;

[0015] The top of the material frame is open, and the side walls and the bottom are provided with a plurality of through holes;

[0016] The material frame passes through the bayonet settings on two or more support frames in sequence;

[0017] A number of aluminum alloy bars are placed in each material frame.

[0018] Further, the hydrogen production device also includes a water jacket;

[0019] The reaction vessel is a rotating body;

[0020] The water jacket is coaxially arranged around the outer circumference of the reaction container, and an annular cavity is formed between the water jacket and the reaction container. The annular cavity is filled with a cooling medium, and the cooling medium exchanges heat with an external cooling device.

[0021] Furthermore, the middle portion of the hydrogen outlet pipe is spirally arranged around the outer circumference of the reaction container and is located in the annular cavity.

[0022] Further, the monitoring components include a temperature sensor, a pressure sensor and a level gauge;

[0023] The pressure sensor and the temperature sensor are both arranged on the reaction container. The pressure sensor is used to obtain the pressure data on the liquid surface, and the temperature sensor is used to obtain the temperature data below the liquid surface. The liquid level meter is connected to the reaction container through the upper pipeline and the lower pipeline respectively, displays the liquid level height in the reaction container in real time, and obtains the liquid level data and transmits it to the controller.

[0024] Furthermore, the number of pressure sensors is more than two, and the number of temperature sensors is more than two.

[0025] Furthermore, a water inlet valve is provided on the water inlet pipe, a sewage valve is provided on the sewage pipe, and an air outlet valve is provided on the hydrogen outlet pipe; the water inlet valve, sewage valve and air outlet valve are respectively connected to the controller for communication;

[0026] The controller can control the on-off of the water inlet pipe by controlling the opening and closing of the water inlet valve; the controller can control the on-off of the sewage pipe by controlling the opening and closing of the sewage valve; the controller can control the on-off of the hydrogen outlet pipe by controlling the opening and closing of the gas outlet valve.

[0027] A method for producing hydrogen based on aluminum-water reaction, based on a hydrogen production device based on aluminum-water reaction, the method is:

[0028] When the temperature data is greater than the set upper limit temperature, the controller controls the water inlet valve to open, and water enters the reaction container from the water inlet pipe; when the temperature data is lower than the lower limit temperature, the controller controls the water inlet valve to close;

[0029] When the liquid level data is greater than the set upper limit liquid level, the controller controls the drain valve to open, and when the liquid level data is less than the set lower limit liquid level, the controller controls the drain valve to close;

[0030] When the pressure data is greater than the upper pressure limit, the controller controls the outlet valve to open; when the pressure data is less than the lower pressure limit, the controller controls the outlet valve to close.

[0031] Beneficial effects:

[0032] (1) The present invention provides a hydrogen production device based on aluminum-water reaction. First, the aluminum alloy rod reacts with water to produce hydrogen. Compared with the reaction of aluminum powder with water, the reaction rate is slower, more controllable, and the reaction is more durable. With continuous water inflow, a large amount of stable hydrogen production can be achieved. Secondly, water is not only a reactant, but also cooling water. The controller controls the water inflow and sewage discharge, which can achieve the dynamic stability of the liquid level and temperature in the reaction container. The controller controls the discharge of hydrogen, which can achieve the dynamic stability of the pressure in the reaction container, thereby controlling the reaction rate of hydrogen. Finally, a sewage pipe is provided to take away the reactants and discharge the reaction products.

[0033] (2) The bearing structure of the present invention can place a large number of aluminum alloy rods in the reaction container at one time to ensure the large-scale production of hydrogen. Moreover, the support frame is a frame structure with an open top and through holes on the side walls and the bottom. On the one hand, it is convenient to use water to flush the reactant impurities on the surface of the aluminum alloy rods, and on the other hand, it is convenient for the hydrogen to rise and be discharged.

[0034] (3) The water jacket of the present invention is coaxially arranged around the outer circumference of the reaction container, and the cooling medium in the water jacket can cool the reaction container.

[0035] (4) The middle portion of the hydrogen outlet pipe of the present invention is spirally arranged on the outer circumference of the reaction vessel and is located in the annular cavity. On the one hand, the spirally arranged hydrogen outlet pipe can extend the hydrogen outlet path, which is convenient for stabilizing the pressure of the output hydrogen and controlling the output speed of the hydrogen; on the other hand, the hydrogen generated from the reaction vessel is cooled, and the water vapor contained in the hydrogen can be condensed, thereby improving the purity of the hydrogen.

[0036] (5) The number of pressure sensors of the present invention is more than two, and the number of temperature sensors is more than two, which can realize all-round measurement of pressure data and temperature data, and facilitate stable and reliable control of the reaction process.

[0037] (6) The present invention provides a hydrogen production method based on aluminum-water reaction, in which the control of each valve is independent of each other and does not interfere with each other. Through the feedback of each collected signal, the intermittent opening of the water inlet valve, the sewage valve and the gas outlet valve can maintain the dynamic stability of the temperature, liquid level and pressure in the reaction zone, which is convenient for controlling the reaction rate and then controlling the hydrogen production rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic diagram of a hydrogen production device based on aluminum-water reaction;

[0039] Figure 2 It is a schematic diagram of the support frame (two rows of bayonet);

[0040] Figure 3 It is the axonometric view of the support frame (four rows of bayonet);

[0041] Figure 4 It is the axonometric view of the material frame;

[0042] Among them, 1-head, 2-temperature sensor, 3-pressure sensor, 4-water inlet pipe, 5-water jacket, 6-hydrogen outlet pipe, 7-tank body, 8-support frame, 81-crossbeam, 82-vertical beam, 83-bayonet, 9-material frame, 10-drain pipe, 11-liquid level meter, 12-water inlet valve, 13-drain valve, 14-gas outlet valve, 15-controller. DETAILED DESCRIPTION

[0043] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0044] Embodiment 1:

[0045] This embodiment provides a hydrogen production device based on aluminum-water reaction, see the attached Figure 1 , including a reaction vessel, a water inlet pipe 4, a hydrogen outlet pipe 6, a bearing assembly, an aluminum alloy bar, a sewage pipe 10, a monitoring assembly and a controller 15;

[0046] The bearing assembly is fixedly arranged in the reaction container, and a plurality of aluminum alloy bars are located in the bearing assembly;

[0047] The water inlet pipe 4, the sewage pipe 10, and the hydrogen outlet pipe 6 are respectively connected to the reaction container. The water inlet pipe 4 is used to feed water into the reaction container, the sewage pipe 10 is used to discharge the reaction solution; and the hydrogen outlet pipe 6 is used to discharge hydrogen.

[0048] All aluminum alloy bars in the reaction container are always below the liquid surface; the aluminum alloy bars react with water to produce hydrogen and reaction heat; the reaction heat increases the temperature in the reaction container, and the generated hydrogen increases the pressure in the reaction container;

[0049] The monitoring component is in communication with the controller 15; the monitoring component is used to obtain the pressure data, temperature data and liquid level data in the reaction container in real time and transmit them to the controller 15;

[0050] The controller 15 can control the on-off of the water inlet pipe 4 according to the temperature data, and control the on-off of the sewage pipe 10 according to the liquid level data, and discharge the reaction heat by the water inlet and the reaction solution, so that the temperature and liquid level in the reaction container are dynamically stable;

[0051] The controller 15 can control the opening and closing of the hydrogen outlet pipe 6 according to the pressure data, thereby controlling the discharge of hydrogen and making the pressure in the reaction container dynamically stable.

[0052] The present embodiment provides a hydrogen production device based on aluminum-water reaction. First, the aluminum alloy rod reacts with water to produce hydrogen. Compared with the reaction of aluminum powder with water, the reaction rate is slower, more controllable, and the reaction is more durable. Water is continuously fed in, and a large amount of stable hydrogen production can be achieved. Secondly, water is not only used as a reactant, but also as cooling water. The controller is used to control water inlet and sewage discharge, and the liquid level and temperature in the reaction container can be dynamically stabilized. The controller is used to control the discharge of hydrogen, and the pressure in the reaction container can be dynamically stabilized, thereby controlling the reaction rate of hydrogen. Finally, a sewage pipe 10 is provided to take away the reactants and discharge the reaction products.

[0053] In one embodiment, the bearing assembly includes more than two support frames 8 and a plurality of material frames 9; more than two support frames 8 are fixedly arranged in parallel in the reaction container;

[0054] See attached Figure 2 and 3 The support frame 8 is a frame structure, including a plurality of cross beams 81 and a plurality of vertical beams 82, wherein the plurality of cross beams 81 are arranged from top to bottom; the plurality of vertical beams 82 are arranged perpendicular to the plurality of cross beams 81 and at equal intervals; the vertical beams 82 and the cross beams 81 intersect to form a plurality of bayonet holes 83;

[0055] See attached Figure 4The material frame 9 is open at the top and is a rectangular parallelepiped. The side walls and the bottom of the material frame 9 are provided with a number of through holes, so that more than two support frames 8 are arranged in the horizontal direction, and the support frames 8 are placed vertically. The length direction of the material frame 9 is along the horizontal direction, and passes through the bayonet 83 on the more than two support frames 8 in sequence; the aluminum alloy bar is located in the material frame 9; in the specific embodiment, two support frames 8 are used, and multiple aluminum alloy bars can be placed in a single material frame 9, and the bayonet on the support frame 8 can be two rows, three rows or four rows, etc.;.

[0056] Furthermore, the material frame 9 is welded by using a 0.5 mm thick stainless steel perforated plate, and the intervals between adjacent left and right material frames and adjacent upper and lower material frames are greater than 4 mm.

[0057] The load-bearing component structure provided in this embodiment can place a large number of aluminum alloy bars in the reaction container at one time to ensure the large-scale production of hydrogen; moreover, the support frame 8 is a frame structure, the top of the material frame 9 is open, and the side walls and the bottom are provided with through holes. On the one hand, it is convenient to use water to flush the reactant impurities on the surface of the aluminum alloy bar (the aluminum alloy bar will expand when reacting with water, and the reactant impurities produced by the expansion will adhere to the surface of the aluminum alloy bar, affecting the further reaction of aluminum and water), and on the other hand, it can facilitate the rising and discharge of hydrogen.

[0058] In one embodiment, the reaction container is a rotating body, and the axial direction is along the aforementioned longitudinal direction; Figure 1 , the reaction vessel comprises a tank body 7 and a head 1;

[0059] The tank body 7 is a cylindrical shell structure with one end open and the other end closed. The closed end of the tank body 7 is an outwardly convex arc surface. The head 1 is an arc surface structure with an outwardly turned flange provided on the edge. The head 1 is connected to the open end of the tank body 7 through the flange, and the convex surface of the head 1 faces the outside of the tank body 7. The head 1 and the tank body 7 form a closed space.

[0060] In one embodiment, the monitoring assembly includes a temperature sensor 2, a pressure sensor 3 and a level gauge 11;

[0061] The pressure sensor 3 and the temperature sensor 2 are both arranged on the reaction container. The pressure sensor 3 is used to obtain the pressure data on the liquid surface, and the temperature sensor 2 is used to obtain the temperature data below the liquid surface. The liquid level meter 11 is connected to the reaction container through the upper pipeline and the lower pipeline respectively, and displays the liquid level height in the reaction container in real time, and obtains the liquid level data and transmits it to the controller 15.

[0062] Furthermore, the number of pressure sensors 3 is more than two, which are dispersedly arranged on the closed end of the tank body 7 and the head 1, and the number of temperature sensors 2 is more than two, which are dispersedly arranged on the closed end of the tank body 7 and the head 1; thereby achieving all-round measurement of pressure data and temperature data, which is convenient for stable and reliable control of the reaction process.

[0063] Specifically, the temperature sensor 2 is a thermocouple and is arranged at the bottom end of the head 1; the pressure sensor 3 is arranged at the top end of the head 1; the liquid level meter 11 is arranged outside the closed end of the tank body 7, and the upper pipeline and the lower pipeline of the liquid level meter 11 pass through the closed end of the tank body 7 respectively and are connected to the tank body 7.

[0064] In one embodiment, a water inlet valve 12 is provided on the water inlet pipe 4, a sewage valve 13 is provided on the sewage pipe 10, and an outlet valve 14 is provided on the hydrogen outlet pipe 6; the water inlet valve 12, the sewage valve 13 and the outlet valve 14 are respectively connected to the controller 15 for communication;

[0065] The controller 15 can control the on-off of the water inlet pipe 4 by controlling the opening and closing of the water inlet valve 12; the controller 15 can control the on-off of the sewage pipe 10 by controlling the opening and closing of the sewage valve 13; the controller 15 can control the on-off of the hydrogen outlet pipe 6 by controlling the opening and closing of the gas outlet valve 14.

[0066] In one embodiment, the aluminum alloy rod is selected from a material that can react with water to generate hydrogen at room temperature.

[0067] Working principle:

[0068] Aluminum alloy bars are used to react with water. Since the reaction rate of aluminum alloy bars with water is slower than that of aluminum powder, a large number of aluminum alloy bars can be placed at one time to react with water, thereby achieving a large amount of stable preparation of hydrogen;

[0069] The controller 15 is used to control the water inlet and outlet in the reaction container. On the one hand, the reaction heat can be removed by the water inlet and outlet to maintain the dynamic stability of the temperature in the reaction container, thereby controlling the reaction rate of hydrogen; on the other hand, the reaction impurities on the surface of the aluminum alloy rod can be washed away by the water inlet and outlet to ensure the stable preparation of hydrogen.

[0070] By controlling the hydrogen output by the controller 15 , the dynamic stability of the pressure in the reaction container can be controlled, thereby controlling the reaction rate of the hydrogen.

[0071] Embodiment 2:

[0072] This embodiment, based on the embodiment 1, further comprises a water jacket 5;

[0073] The water jacket 5 is coaxially arranged around the outer circumference of the reaction container, and an annular cavity is formed between the water jacket 5 and the reaction container. The annular cavity is filled with a cooling medium, and the cooling medium exchanges heat with an external heat exchanger or other cooling device. In a specific embodiment, the cooling medium enters from the bottom of the water jacket 5 and is discharged from the top of the water jacket 5;

[0074] The middle part of the hydrogen outlet pipe 6 is spirally arranged around the outer circumference of the reaction container and is located in the annular cavity;

[0075] In addition to cooling the reaction vessel, the cooling water jacket 5 has the function of cooling the reaction vessel; on the one hand, the spirally arranged hydrogen outlet pipe 6 can extend the hydrogen outlet path, which is convenient for stabilizing the output pressure of hydrogen and controlling the output speed of hydrogen; on the other hand, the hydrogen generated from the reaction vessel is cooled, and the water vapor contained in the hydrogen can be condensed to improve the purity of the hydrogen.

[0076] Embodiment 3:

[0077] This embodiment, based on Embodiment 1 or Embodiment 2, provides a method for producing hydrogen based on aluminum-water reaction, which can effectively control the temperature and pressure in the reaction container, thereby controlling the reaction rate of hydrogen. The method is:

[0078] The controller 15 controls the water inlet valve 12 to open, and water enters the reaction container from the water inlet pipe 4 until all the aluminum alloy bars are immersed, and the controller 15 controls the water inlet valve 12 to close;

[0079] The temperature sensor 2 obtains the temperature data in the reaction container in real time and transmits it to the controller 15. When the temperature data is greater than the set upper limit temperature (if there are multiple temperature data, that is, when any temperature data is greater than the set upper limit temperature), the controller 15 controls the water inlet valve 12 to open, and water enters the reaction container from the water inlet pipe 4; when the temperature data is lower than the lower limit temperature, the controller 15 controls the water inlet valve 12 to close;

[0080] The liquid level meter 11 obtains the liquid level data in the reaction container in real time and transmits it to the controller 15. When the liquid level data is greater than the set upper limit liquid level, the controller 15 controls the drain valve 13 to open; when the liquid level data is less than the set lower limit liquid level, the controller 15 controls the drain valve 13 to close;

[0081] The pressure sensor 3 acquires the pressure data in the reaction container in real time and transmits it to the controller 15. When the pressure data is greater than the upper pressure limit, the controller 15 controls the outlet valve 14 to open; when the pressure data is less than the lower pressure limit, the controller 15 controls the outlet valve 14 to close.

[0082] In the hydrogen production method based on aluminum-water reaction provided in this embodiment, the control of each valve is independent of each other and does not interfere with each other. Through the feedback of each collected signal, the intermittent opening of the water inlet valve, the sewage valve and the gas outlet valve can maintain the temperature, liquid level and pressure of the reaction zone relatively stable, which is convenient for controlling the reaction rate and then controlling the hydrogen production rate. After the hydrogen comes out of the hydrogen production device, it goes through the processes of cooling, washing, filtering, drying, decompression, etc. to enter the target device (such as a fuel cell) to participate in the reaction.

[0083] Furthermore, before using the above steps to produce hydrogen, argon and hydrogen are required to be used in sequence to replace the impurity gases in the reaction container and each pipeline.

[0084] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogen production device based on aluminum-water reaction, characterized in that: include: Reaction vessel, water inlet pipe, hydrogen outlet pipe, load-bearing assembly, aluminum alloy bar, sewage pipe, monitoring assembly and controller; The bearing assembly is fixedly arranged in the reaction container, and a plurality of aluminum alloy bars are located in the bearing assembly; The water inlet pipe, the sewage pipe and the hydrogen outlet pipe are respectively connected to the reaction container. The water inlet pipe is used to feed water into the reaction container, the sewage pipe is used to discharge the reaction solution; and the hydrogen outlet pipe is used to discharge hydrogen. All aluminum alloy bars in the reaction vessel are always below the liquid surface; the aluminum alloy bars react with water to produce hydrogen and reaction heat; The monitoring component is connected to the controller for communication; the monitoring component is used to obtain the pressure data, temperature data and liquid level data in the reaction container in real time and transmit them to the controller; The controller can control the on-off of the water inlet pipe according to the temperature data, and the on-off of the sewage pipe according to the liquid level data. The reaction heat is discharged through the water inlet and the discharge of the reaction solution, so that the temperature and liquid level in the reaction container are dynamically stable. The controller can control the opening and closing of the hydrogen outlet pipe according to the pressure data, thereby controlling the discharge of hydrogen and making the pressure in the reaction container dynamically stable.

2. A hydrogen production device based on aluminum-water reaction as claimed in claim 1, characterized in that: The bearing assembly includes more than two support frames and a plurality of material frames; the more than two support frames are fixedly arranged in parallel in the reaction container; The support frame is a frame structure, and a number of bayonet holes are arranged on the support frame; The top of the material frame is open, and the side walls and the bottom are provided with a plurality of through holes; The material frame passes through the bayonet settings on two or more support frames in sequence; A number of aluminum alloy bars are placed in each material frame.

3. A hydrogen production device based on aluminum-water reaction as claimed in claim 1, characterized in that: Also includes water jacket; The reaction vessel is a rotating body; The water jacket is coaxially arranged around the outer circumference of the reaction container, and an annular cavity is formed between the water jacket and the reaction container. The annular cavity is filled with a cooling medium, and the cooling medium exchanges heat with an external cooling device.

4. A hydrogen production device based on aluminum-water reaction as claimed in claim 3, characterized in that: The middle part of the hydrogen outlet pipe is spirally arranged around the outer circumference of the reaction container and is located in the annular cavity.

5. A hydrogen production device based on aluminum-water reaction as claimed in any one of claims 1 to 4, characterized in that: Monitoring components include temperature sensors, pressure sensors, and level gauges; The pressure sensor and the temperature sensor are both arranged on the reaction container. The pressure sensor is used to obtain the pressure data on the liquid surface, and the temperature sensor is used to obtain the temperature data below the liquid surface. The liquid level meter is connected to the reaction container through the upper pipeline and the lower pipeline respectively, displays the liquid level height in the reaction container in real time, and obtains the liquid level data and transmits it to the controller.

6. A hydrogen production device based on aluminum-water reaction as claimed in claim 5, characterized in that: The number of pressure sensors is two or more, and the number of temperature sensors is two or more.

7. A hydrogen production device based on aluminum-water reaction as claimed in any one of claims 1 to 4, characterized in that: The water inlet pipe is provided with a water inlet valve, the sewage pipe is provided with a sewage valve, and the hydrogen outlet pipe is provided with an air outlet valve; the water inlet valve, sewage valve and air outlet valve are respectively connected to the controller for communication; The controller can control the on-off of the water inlet pipe by controlling the opening and closing of the water inlet valve; the controller can control the on-off of the sewage pipe by controlling the opening and closing of the sewage valve; the controller can control the on-off of the hydrogen outlet pipe by controlling the opening and closing of the gas outlet valve.

8. A method for producing hydrogen based on aluminum-water reaction, characterized in that: Based on the hydrogen production device based on aluminum-water reaction as described in claim 7, the method is: When the temperature data is greater than the set upper limit temperature, the controller controls the water inlet valve to open, and water enters the reaction container from the water inlet pipe; when the temperature data is lower than the lower limit temperature, the controller controls the water inlet valve to close; When the liquid level data is greater than the set upper limit liquid level, the controller controls the drain valve to open, and when the liquid level data is less than the set lower limit liquid level, the controller controls the drain valve to close; When the pressure data is greater than the upper pressure limit, the controller controls the outlet valve to open; when the pressure data is less than the lower pressure limit, the controller controls the outlet valve to close.

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