Portable controllable hydrolysis hydrogen production device

Abstract

The invention discloses a portable controllable hydrolysis hydrogen production device which comprises a tank body and a piston, a feeding hole and an exhaust hole are formed in the side surface of the tank body; a through storage chute is formed in the piston, and the piston can move up and down in the tank body; when the piston moves to the bottommost part and blocks the exhaust port, the storage chute is communicated with the feed port and feeds materials into the tank body; when hydrogen in the tank body pushes the piston to move upwards and open the exhaust port, the material storage chute and the feed port are staggered and feed is cut off. According to the device, the piston is driven to longitudinally move through generated hydrogen pressure, so that opening and closing of the feeding hole are realized. The hydrogen production device does not need any external power energy system, has a simple and light pure mechanical structure, reduces the requirements on hydrogen production and use scenes, is more suitable for various portable hydrogen production places, can realize on-site real-time online hydrogen supply, and greatly expands the practical application environments and scenes.

Description

Technical Field

[0001] The invention belongs to the technical field of hydrogen production by hydrolysis, and particularly relates to a portable controllable hydrogen production device by hydrolysis. Background Art

[0002] With growing environmental awareness, clean energy is gaining increasing attention from researchers. Hydrogen, as a high-calorific-value renewable energy carrier, plays a crucial role in achieving carbon neutrality. Furthermore, hydrogen, due to its widespread availability, high energy density, and clean, non-toxic combustion products, has become a highly sought-after green and clean energy source. Hydrogen can be obtained through various methods, primarily through fossil fuel reforming and water electrolysis. However, both methods consume significant amounts of energy, and the resulting hydrogen must be stored and transported before it can be delivered to users, resulting in high costs. These two methods are primarily suitable for large-scale hydrogen production. However, in the field of portable hydrogen production, hydrolysis offers advantages such as simple operation, high hydrogen production efficiency, rapid response, and the ability to provide on-site hydrogen supply at ambient temperature and pressure, making it a more efficient and convenient portable hydrogen production technology. The patent application (CN113371678A) provides a continuously controllable hydrogen production device. However, this device is complex in structure and requires a power system, limiting its portable applications. The invention patent with publication number CN108033428A provides a portable hydrogen production device with a simple structure and easy operation, but the device requires an additional power supply to drive the water pump, and its portable application scenarios are also limited. Summary of the Invention

[0003] Purpose of the invention: The technical problem to be solved by the present invention is to address the deficiencies of the existing technology and provide a purely mechanical reciprocating plunger-controlled hydrogen device to achieve real-time online hydrogen production. At the same time, the device has a simple structure, is small and light, and is easy to carry, greatly expanding the actual application environment and scenarios.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A portable, controllable hydrolysis hydrogen production device comprises a tank body and a piston; a feed port and an exhaust port are provided on the side of the tank body; a penetrating storage chute is provided inside the piston, and the piston can move up and down within the tank body; when the piston moves to the bottom and blocks the exhaust port, the storage chute is connected to the feed port and feeds material into the tank body; when hydrogen in the tank body pushes the piston upward and opens the exhaust port, the storage chute and the feed port are staggered and the feed is cut off.

[0005] To produce hydrogen, the reactants are fed into the tank through the feed port and fall through the piston to the bottom of the tank. The reaction generates pressure, driving the piston to move longitudinally and cut off the feed. When the hydrogen is discharged, reducing the pressure, the piston drops and automatically refills. Therefore, the piston can move longitudinally within the tank, driven by the gas pressure generated by the reaction, without the need for an additional power system.

[0006] Preferably, the cross section of the storage chute is circular.

[0007] In the present invention, the reactants are powders, and the reactant components include but are not limited to magnesium powder, aluminum powder and corresponding catalysts.

[0008] Furthermore, a partition with an L-shaped cross section is provided in the tank body, and the partition is located at the bottom of the piston for limiting and supporting the piston.

[0009] Furthermore, the upper portion of the partition is fixed on the inner wall of the tank body.

[0010] Furthermore, the partition is also provided with a feeding port for communicating with the storage chute. When the piston moves upward, the storage chute and the feeding port are staggered and the feeding is cut off.

[0011] Specifically, the top of the tank body is open and is sealed by a cover body.

[0012] Furthermore, the top opening of the tank body is provided with a step and has an external thread; the inner wall of the cover body has an internal thread; and the cover body and the tank body are covered by the internal and external threads.

[0013] Furthermore, an annular sealing gasket is provided between the cover and the tank body for enhancing the sealing.

[0014] Specifically, the tank body is cylindrical, and the wall thickness of the tank body is 2-4 mm; the partition is located in the upper half of the tank body, and the lower half of the tank body is used to store water and provide a hydrogen production reaction space.

[0015] Specifically, the side surface of the piston contacts the partition plate and the wall surface of the tank body with a slight gap, and enables the piston to slide freely in the longitudinal direction.

[0016] Specifically, the width of the bottom transverse portion of the partition is 2-4 mm, and a portion of the bottom of the piston is supported above the bottom transverse portion of the partition; the top of the partition exceeds the horizontal height of the storage chute when the piston moves to the top.

[0017] Preferably, the device of the present invention can be customized using 3D printing technology and can support the use of a variety of 3D printing materials; it is also suitable for metal materials.

[0018] Furthermore, the exhaust port is connected to an external gas pipe, through which the gas generated in the tank body is transported out, reducing the internal pressure of the tank body, so that the piston falls back to its original position by gravity, and the piston thus moves back and forth longitudinally to achieve continuous feeding. Beneficial effects

[0019] The present invention realizes controllable hydrogen through a reciprocating plunger. The hydrogen production device does not require any external power energy system, that is, the device itself does not have electronic devices and electricity requirements. It is a simple and lightweight pure mechanical structure. This pure mechanical structure reduces the requirements for hydrogen production and use scenarios, and is more suitable for various portable hydrogen production sites, including field hydrogen use scenarios. The present invention controls the feed through a piston, and drives the piston in the device to move longitudinally through the generated hydrogen pressure, thereby realizing the opening and closing of the feed port. The device tank and cover are connected by threads to ensure better loading and unloading and sealing. The device of the present invention effectively controls the feed frequency and quantity through the piston component, realizes a continuous and stable supply of hydrogen, and provides a stable fuel source for hydrogen-using equipment. The hydrogen production device of the present invention ensures a continuous and stable output of hydrogen and precise control of the hydrogen production amount. At the same time, the device has a simple structure, simple operation, small and light body, and is easy to carry. It can realize on-site real-time online hydrogen supply, which greatly expands the actual application environment and scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more apparent.

[0021] Figure 1 It is a schematic diagram of the cross-sectional structure of a hydrolysis hydrogen production device.

[0022] Figure 2 It is a structural schematic diagram of the piston component in the present invention.

[0023] Figure 3 It is a structural schematic diagram of the tank body component in the present invention.

[0024] Figure 4 It is a cross-sectional view of the state in which the piston is lifted in the present invention.

[0025] Figure 5 It is a three-dimensional structural cross-sectional view of the hydrogen production device of the present invention.

[0026] Figure 6 This is a test diagram of the hydrogen production effect of the hydrogen production device of the present invention.

[0027] In the figure, 1-cover, 2-feed port, 3-piston, 4-storage chute, 5-exhaust port, 6-discharge port, 7-L-shaped partition, 8-tank body. DETAILED DESCRIPTION

[0028] The present invention can be better understood with reference to the following examples.

[0029] The structural diagram of the portable controlled hydrolysis hydrogen production device of the present invention is as follows Figure 1 and Figure 5 As shown, it includes a tank body 8 and a piston 3; a feed port 2 and an exhaust port 5 are provided on the side of the tank body 8; a penetrating storage chute 4 is provided inside the piston 3, and the piston 3 can move up and down in the tank body 8; when the piston 3 moves to the bottom and blocks the exhaust port 5, the storage chute 4 is connected to the feed port 2 and feeds the material into the tank body 8; when the hydrogen in the tank body 8 pushes the piston 3 to move upward and opens the exhaust port 5, the storage chute 4 is staggered with the feed port 2 and the feed is cut off.

[0030] To produce hydrogen, reactants are fed into the tank through feed port 2 and fall through the piston to the bottom of the tank. The reaction generates pressure, driving the piston to move longitudinally and cut off the feed. When the hydrogen is discharged, reducing the pressure, the piston drops and automatically refills. Thus, the piston can move longitudinally within the tank, driven by the gas pressure generated by the reaction, without the need for an additional power system.

[0031] In the present invention, the reactants are powders, and the reactant components include but are not limited to magnesium powder, aluminum powder and corresponding catalysts.

[0032] In this embodiment, a partition plate 7 with an L-shaped cross section is further provided in the tank body 8 . The partition plate 7 is located at the bottom of the piston 3 and is used to limit and support the piston 3 .

[0033] In this embodiment, the upper portion of the partition 7 is fixed to the inner wall of the tank body 8 .

[0034] In this embodiment, a feeding port 6 for communicating with the material storage chute 4 is further formed on the partition plate 7. When the piston 3 moves upward, the material storage chute 4 is staggered from the feeding port 6 and the material is cut off.

[0035] In this embodiment, the top of the tank body 8 is open, and the tank body 8 is sealed by the cover body 1.

[0036] In this embodiment, the top opening of the tank body 8 is provided with a step and has an external thread; the inner wall of the cover body 1 has an internal thread; the cover body 1 and the tank body 8 are covered by the internal and external threads.

[0037] In this embodiment, an annular sealing gasket is further provided between the cover body 1 and the tank body 8 for enhancing the sealing.

[0038] like Figure 3As shown, in this embodiment, the tank body is cylindrical, the outer diameter of the tank body 8 is 52 mm, the inner diameter of the tank body 8 is 44 mm, the outer wall thickness of the tank body 8 is 4 mm, and the height of the tank body 8 is 84 mm; the partition 7 is located in the upper half of the tank body 8, and the lower half of the tank body 8 is used to store water and provide a hydrogen production reaction space.

[0039] like Figure 2 As shown, in this embodiment, the side surface of the piston 3 contacts the partition 7 and the wall surface of the tank body 8 with a slight gap, and enables the piston 3 to slide freely in the longitudinal direction.

[0040] In this embodiment, the width of the bottom transverse portion of the partition 7 is 3 mm, and a portion of the bottom of the piston 3 is supported above the bottom transverse portion of the partition 7; the top of the partition 7 exceeds the horizontal height of the storage chute 4 when the piston 3 moves to the top.

[0041] The device of the present invention can be customized using 3D printing technology and can support the use of a variety of 3D printing materials; it is also suitable for metal materials.

[0042] In this embodiment, the exhaust port 5 is connected to an external gas pipe, through which the gas generated in the tank body is transported out, reducing the internal pressure of the tank body, so that the piston falls back to its original position by gravity, and the piston moves back and forth longitudinally to achieve continuous feeding.

[0043] In this invention, the bottom of the tank 8 is used to store water and serve as the hydrogen production reaction site. The circular storage chute 4 inside the piston 3 serves as a storage and feed channel. The reactants can be magnesium powder or aluminum powder. The metal powder is mixed with the catalyst and pressed into a sheet. When used, the sheet composite material is placed into the feed port 2. The water source can be tap water, groundwater, or other water free of large suspended particles.

[0044] The working principle of the device in this embodiment is as follows: Fill the bottom of the tank 8 with an appropriate amount of water, install the piston 3 into the tank 8, cover it with the lid 1 and tighten it. Add the hydrolysis hydrogen production material from the feed port 2, the hydrogen production material will slide along the storage chute 4 through the discharge port 6, and the hydrogen production material will fall into the bottom of the tank 8 and react with the water, instantly generating hydrogen, causing the internal pressure of the tank 8 to increase. Since the piston 3 can move longitudinally and hydrogen is continuously generated, the air pressure will drive the piston 3 to move upward. When the top of the piston 3 is in contact with the lid 1, the air outlet 5 will be fully opened (as shown in the figure). Figure 4As shown, the piston 3 is used to release the internal pressure of the tank 8. As the internal pressure decreases, the piston 3 falls to its original position due to gravity, returning to its original state. To achieve continuous and controllable hydrogen, the piston 3 must be at the top, at which point the feed channel is cut off, and a large amount of hydrogen-producing material is added to the feed port 2. When the piston 3 returns to its original position, the hydrogen-producing material enters the storage chute 4, with a portion falling through the discharge port 6 to the bottom of the tank 8. The huge pressure generated by the reaction drives the piston 3 upward again, cutting off the feed channel. The remaining material is stored in the storage chute 4. This reciprocating process is repeated, and the longitudinal movement of the pressure-regulating piston 3 is used to open and close the feed channel, effectively controlling the release of hydrogen-producing material.

[0045] In order to verify the effective operation of the reciprocating plunger controllable hydrogen device, a hydrogen supply test was conducted on it, mainly collecting the hydrogen produced by the reciprocating plunger controllable hydrogen device through the drainage method. The reciprocating plunger controllable hydrogen device was connected as the hydrogen supply end to the water-filled gas collecting bottle. The components were connected using glass interfaces and rubber tubes. The interfaces were sealed with high vacuum silicone grease. An electronic balance was placed under the drainage port of the water-filled gas collecting bottle (connected to a computer to automatically record the balance reading within a certain period of time). The volume of water discharged from the gas collecting bottle is the volume of hydrogen produced by the system (such as Figure 6 As shown). The hydrogen production raw material used in this test is magnesium powder. As can be seen from the figure, there are two data inflection points at 30s and 60s. These inflection points are the performance of the secondary feeding of the reciprocating plunger controllable hydrogen device, that is, the secondary feeding leads to an increase in instantaneous water discharge. Figure 6 It also shows that after the initial addition of hydrogen-generating material, the device can automatically feed twice, effectively achieving continuous and stable hydrogen supply. If the initial feed volume is increased, the device can automatically feed multiple times, effectively controlling the addition of hydrogen-generating material, thereby providing a stable and continuous hydrogen supply and continuously serving as a hydrogen source.

[0046] The present invention provides a concept and method for a portable, controllable hydrolysis hydrogen production device. Numerous methods and approaches exist for implementing this technical solution. The foregoing merely represents a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are considered within the scope of protection of the present invention. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A portable controllable hydrolysis hydrogen production device, characterized in that: The invention comprises a tank body (8) and a piston (3); a feed port (2) and an exhaust port (5) are provided on the side of the tank body (8); a penetrating storage chute (4) is provided inside the piston (3), and the piston (3) can move up and down in the tank body (8); when the piston (3) moves to the bottom and blocks the exhaust port (5), the storage chute (4) is connected with the feed port (2) and feeds the material into the tank body (8); when the hydrogen in the tank body (8) pushes the piston (3) to move upward and opens the exhaust port (5), the storage chute (4) is staggered with the feed port (2) and the feed is cut off.

2. The controlled hydrolysis hydrogen production device according to claim 1, characterized in that: A partition plate (7) with an L-shaped cross section is also provided in the tank body (8). The partition plate (7) is located at the bottom of the piston (3) and is used to limit and support the piston (3).

3. The controlled hydrolysis hydrogen production device according to claim 2, characterized in that: The upper portion of the partition (7) is fixed to the inner wall of the tank body (8).

4. The controlled hydrolysis hydrogen production device according to claim 3, characterized in that: The partition plate (7) is also provided with a discharge port (6) for communicating with the storage chute (4). When the piston (3) moves upward, the storage chute (4) and the discharge port (6) are staggered and the discharge is cut off.

5. The controlled hydrolysis hydrogen production device according to claim 1, characterized in that: The top of the tank body (8) is open, and the tank body (8) is sealed by a cover body (1).

6. The controlled hydrolysis hydrogen production device according to claim 5, characterized in that: The top opening of the tank body (8) is provided with a step and has an external thread; the inner wall of the cover body (1) has an internal thread; and the cover body (1) and the tank body (8) are covered by the internal and external threads.

7. The controlled hydrolysis hydrogen production device according to claim 6, characterized in that: An annular sealing gasket for enhancing sealing is also provided between the cover body (1) and the tank body (8).

8. The controlled hydrolysis hydrogen production device according to claim 4, characterized in that: The tank body is cylindrical, and the wall thickness of the tank body (8) is 2-4 mm; the partition (7) is located in the upper half of the tank body (8), and the lower half of the tank body (8) is used to store water and provide a hydrogen production reaction space.

9. The controlled hydrolysis hydrogen production device according to claim 4, characterized in that: The side surface of the piston (3) contacts the partition (7) and the wall surface of the tank body (8), and enables the piston (3) to move freely in the longitudinal direction.

10. The controlled hydrolysis hydrogen production device according to claim 4, characterized in that: The width of the bottom transverse portion of the partition (7) is 2-4 mm, and a portion of the bottom of the piston (3) is supported above the bottom transverse portion of the partition (7); the top of the partition (7) exceeds the horizontal height of the storage chute (4) when the piston (3) moves to the uppermost position.

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