A membrane-type hydrogen production device

Abstract

This utility model provides a membrane hydrogen production device, including a reaction chamber and membrane consumables; the reaction chamber includes a main body and a cover; the internal space of the main body is divided into a closed cavity and an open cavity, and the main body is provided with a liquid inlet and an exhaust port; the open cavity is divided into a raw material chamber and a membrane channel based on an enclosing component; the enclosing component is provided with a membrane material outlet and a membrane material inlet respectively communicating with the membrane channel; a first roller and a second roller are provided in the raw material chamber, and the membrane consumables are wound on the first roller, with one end of the membrane consumables leading out from the first roller, passing through the membrane material outlet, the membrane channel and the membrane material inlet in sequence before being wound on the second roller; the partition structure is provided with side perforations and bottom perforations connecting the membrane channel and the closed cavity; this device achieves continuous, automated and cleaning-free hydrogen production process by encapsulating solid reactants in continuously transportable membrane consumables and cleverly designing the connection method between the membrane channel and the closed cavity.

Description

Technical Field

[0001] This utility model relates to the field of power supply, specifically to a membrane hydrogen production device. Background Technology

[0002] Hydrogen energy is considered a crucial component of the future energy system due to its high energy density and clean products. Current hydrogen production methods mainly include water electrolysis, fossil fuel reforming, biomass hydrogen production, and metal-water reaction hydrogen production. Among these, metal-water reaction hydrogen production has attracted significant attention due to its lack of external power supply, mild reaction conditions, and controllable hydrogen production rate. However, traditional metal-water reaction hydrogen production devices generally suffer from problems such as difficulty in renewing the reaction interface, inconvenience in discharging solid residues, and large fluctuations in hydrogen production rate, making long-term continuous operation difficult. Furthermore, some devices use a one-time feed method, requiring complete disassembly and cleaning after the reaction, resulting in high maintenance costs, a poor user experience, and inconvenience for users. Utility Model Content

[0003] The purpose of this invention is to provide a membrane hydrogen production device. This device encapsulates solid reactants in a membrane consumable and uses a continuous conveying mechanism to allow the membrane consumable to pass sequentially through the reaction zone, thereby achieving continuous and controllable contact between the solid and liquid reactants and producing hydrogen continuously and stably. At the same time, the reaction residue is rolled up along with the membrane consumable, eliminating the need for frequent cleaning and significantly reducing maintenance workload.

[0004] Accordingly, this utility model provides a membrane hydrogen production device, including a reaction chamber and membrane consumables; The reaction chamber includes a main body and a cover; The main body has a partition structure that divides the internal space of the main body into a closed cavity and an open cavity. The main body is provided with a liquid inlet and a vent that communicate with the closed cavity. The open cavity has an open surface, and the cover is installed on the main body and closes the open surface; an enclosing member is provided inside the open cavity, and a raw material compartment is formed between the main body, the cover and the inner side of the enclosing member, and a membrane channel is formed between the main body, the cover, the partition structure and the outer side of the enclosing member; The enclosing component is provided with a membrane material outlet and a membrane material inlet that are respectively connected to the membrane channel; The raw material compartment is provided with a first roller and a second roller. The membrane consumable is wound on the first roller. One end of the membrane consumable is led out from the first roller and passes through the membrane material outlet, the membrane channel and the membrane material inlet in sequence before being wound on the second roller. The partition structure is provided with side perforations and bottom perforations that connect the membrane channel and the closed cavity, and the side perforations are set at a higher height than the bottom perforations.

[0005] In an optional implementation, the height of the side perforation is lower than the height of the membrane material outlet.

[0006] In an optional implementation, the height of the membrane material outlet is higher than the height of the highest point of the enclosed cavity.

[0007] In an optional embodiment, one end of the first roller and / or one end of the second roller protrudes from the cover; One end of the first roller shaft that extends out of the cover is the first driving end, which is used to drive the first roller shaft to rotate. One end of the second roller shaft that extends out of the cover is the second drive end, which is used to drive the second roller shaft to rotate.

[0008] In an optional embodiment, the membrane material outlet is located at the top of the enclosure member.

[0009] In an optional embodiment, the membrane material outlet and the membrane material inlet are an integral opening structure.

[0010] In an optional embodiment, the partition structure is provided with heat dissipation fins on the side facing the enclosed cavity.

[0011] In an optional embodiment, the membrane consumable includes a first membrane material and a second membrane material, wherein the first membrane material and / or the second membrane material are provided with micropores; The first membrane material and the second membrane material are stacked together, and solid particulate consumables are sandwiched between the first membrane material and the second membrane material.

[0012] In an optional embodiment, the first membrane material and / or the second membrane material has self-adhesive properties.

[0013] In an optional implementation, the raw material compartment is divided into a first raw material compartment and a second raw material compartment based on a separation plate; The first roller is disposed in the first raw material chamber, and the film material outlet is connected to the first raw material chamber; The second roller is disposed in the second raw material chamber, and the film material inlet is connected to the second raw material chamber.

[0014] In summary, this utility model provides a membrane-based hydrogen production device. This device uses a membrane consumable to carry the solid reactants of the hydrogen production reaction. Through a special device structure design, utilizing the structural characteristics of the membrane consumable, a relatively controllable continuous hydrogen production function can be achieved in a relatively compact space, offering good ease of use. With a reasonable internal structure design, the membrane consumable is built into the device, allowing it to be used immersed in liquid, thus enabling effective heat dissipation. The solid reactants, using the membrane as a carrier, allow for precise control of the hydrogen production reaction through membrane flow, resulting in good controllability of hydrogen production. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a membrane hydrogen production device according to an embodiment of the present invention.

[0016] Figure 2 This is a front view structural diagram of the membrane hydrogen production device with the cover hidden, according to an embodiment of this utility model.

[0017] Figure 3 This is a cross-sectional structural schematic diagram of a membrane hydrogen production device according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic cross-sectional view of the membrane consumable material according to an embodiment of the present invention. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the membrane hydrogen production device according to an embodiment of the present invention. Figure 2 This is a front view structural diagram of the membrane hydrogen production device with the cap concealed in an embodiment of this utility model. Figure 3 This is a cross-sectional structural schematic diagram of a membrane hydrogen production device according to an embodiment of the present invention.

[0021] This utility model provides a membrane hydrogen production device, which includes a reaction chamber and membrane consumables 3.

[0022] Specifically, the reaction chamber includes a main body 1 and a cover 2.

[0023] Basically, the main body 1 has a partition structure 44, which divides the interior of the main body 1 into a closed cavity and an open cavity. It should be noted that the partition structure 44 is designed according to the required closed cavity structure and the required open cavity structure. In this embodiment of the invention, please refer to the accompanying drawings. Figure 3 The schematic cross-sectional structure of the membrane hydrogen production device shows that the open cavity is embedded into the closed cavity from one side in an embedded manner. Depending on the defined structural features, the open cavity can also be completely surrounded by the closed cavity. In actual design, it needs to be designed according to the requirements.

[0024] Basically, the main body 1 is provided with a liquid inlet 11 and a vent 12 that communicate with the closed cavity. The liquid inlet 11 is used for the input of liquid reactants, and the vent 12 is used for the discharge of hydrogen.

[0025] Compared to a closed cavity, the open cavity has an open surface, which is mainly used for replacing the membrane consumable 3.

[0026] An enclosing member 36 is provided within the open cavity. A cover 2 is installed on the main body 1 and closes the open surface. After installation, the cover 2 is tightly fitted against the side of the enclosing member 36. Correspondingly, depending on the spatial application function, a raw material compartment 33 is formed between the main body 1, the cover 2, and the inner side of the enclosing member 36; a membrane channel 35 is formed between the main body 1, the cover 2, the partition structure 44, and the outer side of the enclosing member 36. The raw material compartment 33 is used for the storage and recycling of membrane consumables 3, and the membrane channel 35 is used for the deployment and reaction of the membrane consumables 3.

[0027] Correspondingly, the enclosing member 36 is provided with a membrane material outlet and a membrane material inlet that are respectively connected to the membrane channel 35 for the unfolding and recycling of the membrane consumable 3. Specifically, the raw material chamber 33 is provided with a first roller 31 and a second roller 32. The membrane consumable 3 is wound around the first roller 31, with one end of the membrane consumable 3 leading out from the first roller 31, passing through the membrane material outlet, the membrane channel 35 and the membrane material inlet in sequence before being wound around the second roller 32.

[0028] In order to enable the solid reactant (membrane consumable 3) and the liquid reactant to react, the partition structure 44 is provided with a perforation connecting the membrane channel 35 and the closed cavity. The height of the perforation is lower than the membrane material outlet to ensure that the liquid reactant is prevented from directly entering the raw material chamber 33 through the membrane material outlet by controlling the input of the liquid reactant.

[0029] It should be noted that in this embodiment of the invention, the raw materials and recycled materials of the membrane consumable 3 are both located in the same space (raw material compartment 33). In actual implementation, the storage spaces for the two materials can be isolated from each other. This embodiment of the invention places the raw materials and recycled materials of the membrane consumable 3 in the same space (raw material compartment 33) primarily to consider the reuse of space (as the membrane material is consumed, the space occupied by the raw materials in the first roller shaft 31 area gradually decreases, while the space occupied by the recycled materials in the second roller shaft 32 area gradually increases), resulting in a smaller overall space occupied by the raw materials and recycled materials. When the storage spaces for the raw materials and recycled materials of the membrane consumable 3 are isolated from each other, if the height of the membrane material inlet is lower than the membrane material outlet, liquid reactants may seep into the space where the recycled materials are stored. This allows the solid reactants in the recycled materials to be completely reacted, which is beneficial for improving the utilization rate of the reactants.

[0030] Furthermore, to prevent liquid reactants from entering the raw material chamber 33, the side perforation 41 is positioned at a height lower than the membrane material outlet. Correspondingly, an effective isolation air column space is formed between the side perforation 41 and the membrane material storage port, isolating the liquid reactants from the raw material chamber 33 under pressure.

[0031] Accordingly, to further improve the isolation performance, the outlet of the membrane material is positioned higher than the highest point of the sealed cavity. In this embodiment, even if the sealed cavity is filled with liquid reactants, based on the principle of communicating vessels, the liquid reactants will not enter the raw material chamber 33. Specifically, according to the gas discharge logic, hydrogen will first fill the membrane channel 35 and the raw material chamber 33, and then be discharged into the sealed cavity through the side perforations, which ensures the sealing of the raw material chamber 33.

[0032] Furthermore, one end of the first roller 31 and / or one end of the second roller 32 protrudes from the cover 2; the end of the first roller 31 protruding from the cover 2 is the first drive end 21, and the end of the second roller 32 protruding from the cover 2 is the second drive end 22. In practical applications, to facilitate the adjustment of the membrane consumable 3, the rotation of the corresponding roller can be controlled externally through the first drive end 21 or the second drive end 22, thereby causing the membrane consumable 3 to move in the membrane channel 35, allowing new membrane consumable 3 to enter the membrane channel 35 to participate in the reaction.

[0033] Preferably, the membrane material outlet is located at the top of the enclosing member 36. Furthermore, in this embodiment of the invention, the membrane material outlet and the membrane material inlet are an integral opening structure, which makes the structure of the membrane hydrogen production device more compact.

[0034] In addition, considering the heat generated during the reaction, the partition structure 44 is provided with heat dissipation fins 43 on the side facing the closed cavity, which absorbs heat by the liquid reactants themselves and can distribute and dissipate heat in real time through the circulation of the liquid reactants.

[0035] Figure 4 This is a schematic cross-sectional view of the membrane consumable material according to an embodiment of the present invention. Specifically, regarding the actual membrane consumable material 3, this embodiment of the present invention provides a structure of the membrane consumable material 3 for reference. Basically, the membrane consumable material 3 includes a first membrane material 51 and a second membrane material 52, wherein the first membrane material 51 and / or the second membrane material 52 are provided with micropores 54; the first membrane material 51 and the second membrane material 52 are stacked together, and solid particulate consumable material 53 is sandwiched between the first membrane material 51 and the second membrane material 52.

[0036] Furthermore, the first membrane material 51 and / or the second membrane material 52 are self-adhesive and can be bonded together to form an integral structure, thereby fixing the solid particle consumables in the middle.

[0037] Specifically, the substrates of the first membrane material 51 and the second membrane material 52 can be selected as 25 µm to 50 µm thick PP / PE composite microporous membrane 54, with a pore size of 0.05 µm to 0.2 µm and a porosity of 40% to 60%. After surface modification, the material surface is ensured to have good contact with the reaction solution. A 5 µm thick EVA hot melt adhesive layer is applied to one side of the membrane material to form self-adhesion. The edges of the two membrane materials can be bonded and the particles encapsulated by hot pressing (temperature 110 ℃, pressure 0.3 MPa, time 1 s). The corresponding solid particle consumable is selected according to the different actual reactions. Specifically, in this embodiment of the present invention, the solid particle consumable 53 is aluminum alloy micro powder with an Al content ≥99.9% and NaOH solid particles with a particle size of 50 µm to 150 µm. The two are uniformly mixed at a mass ratio of 10:1, and the total thickness is controlled at 0.3 mm to 0.8 mm. After being coated on both sides, the solid particle consumable is formed into a continuous "sandwich" structure by micro-heat sealing; the width of the membrane consumable 3 is 30 mm to 60 mm, and the length can reach up to 100 m.

[0038] In actual operation, a sufficient amount of liquid reactant, such as deionized water or a 3-10 wt% sodium chloride solution, is first injected into the sealed cavity through the liquid inlet, ensuring the liquid level does not exceed the lower edge of the side perforations. Then, the first roller is rotated by the drive end, causing the membrane consumable to enter the membrane channel from the membrane material outlet, and then contact the liquid reactant through the side and bottom perforations. The metal components in the solid granular consumable undergo hydrolysis upon contact with water, producing hydrogen gas and releasing heat. The hydrogen gas is discharged through the vent, while the reaction residue is trapped inside the membrane consumable. As the first roller continuously releases new membrane material and the second roller simultaneously rewinds the old membrane material, the reaction interface continuously moves forward, achieving continuous hydrogen production.

[0039] After the reaction has proceeded for a period of time, if the temperature inside the sealed chamber rises, the heat dissipation fins on the partition structure can quickly conduct heat to the liquid reactants and remove it through natural convection or an external circulation pump, maintaining the reaction temperature between 40-60 ℃. This ensures the reaction rate while preventing the membrane material from deforming due to high temperatures. If the membrane consumable needs to be replaced, simply open the cover, cut off the end of the old membrane roll, load the new membrane roll into the first roller, and pull the front end of the new membrane material through the membrane channel and fix it to the second roller. The entire process does not require draining the liquid reactants or cleaning residues, and the maintenance time is no more than 5 minutes.

[0040] It should be noted that the liquid inlet 11 in this embodiment of the present invention adopts a connecting connector design, mainly for connecting pipes. In actual design, if the liquid reactants used come from different environments, the structure of the liquid inlet 11 can be modified accordingly. For example, if outdoor water is used, the liquid inlet 11 can be set as a through hole structure, and the liquid reactants can be added by directly placing the hydrogen production device into the outdoor water. In addition, immersing the entire hydrogen production device in water can also help the hydrogen production device dissipate heat.

[0041] In summary, this utility model provides a membrane-based hydrogen production device. This device uses a membrane consumable to carry the solid reactants of the hydrogen production reaction. Through a special device structure design, utilizing the structural characteristics of the membrane consumable, a relatively controllable continuous hydrogen production function can be achieved in a relatively compact space, offering good ease of use. With a reasonable internal structure design, the membrane consumable is built into the device, allowing it to be used immersed in liquid, thus enabling effective heat dissipation. The solid reactants, using the membrane as a carrier, allow for precise control of the hydrogen production reaction through membrane flow, resulting in good controllability of hydrogen production.

[0042] The above provides a detailed description of a membrane hydrogen production device provided by the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A membrane hydrogen production device, characterized in that, Including reaction chamber and membrane consumables; The reaction chamber includes a main body and a cover; The main body has a partition structure that divides the internal space of the main body into a closed cavity and an open cavity. The main body is provided with a liquid inlet and a vent that communicate with the closed cavity. The open cavity has an open surface, and the cover is installed on the main body and closes the open surface; an enclosing member is provided inside the open cavity, and a raw material compartment is formed between the main body, the cover and the inner side of the enclosing member, and a membrane channel is formed between the main body, the cover, the partition structure and the outer side of the enclosing member; The enclosing component is provided with a membrane material outlet and a membrane material inlet that are respectively connected to the membrane channel; The raw material compartment is provided with a first roller and a second roller. The membrane consumable is wound on the first roller. One end of the membrane consumable is led out from the first roller and passes through the membrane material outlet, the membrane channel and the membrane material inlet in sequence before being wound on the second roller. The partition structure is provided with side perforations and bottom perforations that connect the membrane channel and the closed cavity, and the side perforations are set at a higher height than the bottom perforations.

2. The membrane hydrogen production device as described in claim 1, characterized in that, The height of the side perforation is lower than the height of the membrane material outlet.

3. The membrane hydrogen production device as described in claim 1, characterized in that, The height of the membrane material outlet is higher than the height of the highest point of the enclosed cavity.

4. The membrane hydrogen production device as described in claim 1, characterized in that, One end of the first roller shaft and / or one end of the second roller shaft protrudes from the cover; One end of the first roller shaft that extends out of the cover is the first driving end, which is used to drive the first roller shaft to rotate. One end of the second roller shaft that extends out of the cover is the second drive end, which is used to drive the second roller shaft to rotate.

5. The membrane hydrogen production device as described in claim 1, characterized in that, The membrane material outlet is located at the top of the enclosure component.

6. The membrane hydrogen production device as described in claim 1, characterized in that, The membrane material outlet and the membrane material inlet are an integral open structure.

7. The membrane hydrogen production device as described in claim 1, characterized in that, The partition structure has heat dissipation fins on the side facing the enclosed cavity.

8. The membrane hydrogen production device as described in claim 1, characterized in that, The membrane consumable includes a first membrane material and a second membrane material, wherein the first membrane material and / or the second membrane material are provided with micropores; The first membrane material and the second membrane material are stacked together, and solid particulate consumables are sandwiched between the first membrane material and the second membrane material.

9. The membrane hydrogen production device as described in claim 8, characterized in that, The first membrane material and / or the second membrane material are self-adhesive.

10. The membrane hydrogen production apparatus as described in claim 1, characterized in that, The raw material compartment is divided into a first raw material compartment and a second raw material compartment based on a separation plate; The first roller is disposed in the first raw material chamber, and the film material outlet is connected to the first raw material chamber; The second roller is disposed in the second raw material chamber, and the film material inlet is connected to the second raw material chamber.

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