Simple water electrolysis hydrogen production device

Abstract

The utility model relates to the technical field of hydrogen preparation, in particular to a simple water electrolysis hydrogen production device, which comprises an electrolysis tank and two electrode bars, is simple and practical in integral structural design, and mainly comprises the electrolysis tank, a gas collecting hood, a gas collecting pipe, the electrode bars, electrode plates, a liquid injection pipe, a partition plate, supporting legs and the like. The simple structure enables the device to be easy to machine and assemble in the production process, complex processes and equipment are not needed, so that the production cost is greatly reduced, in the use scene, the device with the simple structure can be rapidly built and put into use, complex installation and debugging are not needed, and in some emergency situations, when hydrogen needs to be rapidly prepared, the device can be used for rapidly preparing hydrogen. The device can be rapidly assembled and start to work, and temporary requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production technology, specifically a simple water electrolysis hydrogen production device. Background Technology

[0002] With the increasing global demand for clean energy, hydrogen, as an efficient and clean energy carrier, has received widespread attention. There are various methods for producing hydrogen, among which water electrolysis hydrogen production technology has become one of the important ways to produce hydrogen in industry due to its pollution-free production process and high hydrogen purity.

[0003] However, existing water electrolysis hydrogen production devices have certain drawbacks in use. Their complex structures, involving multiple components and intricate connections, make manufacturing and assembly difficult, requiring advanced technology and equipment. This complexity can lead to high production costs, making them unsuitable for large-scale procurement or temporary applications, resulting in poor economic efficiency. Furthermore, existing devices rely on complex membranes to separate hydrogen and oxygen, but these membranes require high-quality materials and manufacturing processes, leading to high costs. Additionally, existing devices require disassembly or opening of seals to replenish the electrolyte, which is cumbersome and prone to gas leaks, affecting the device's sealing and safety. Finally, the lack of intuitive electrolyte monitoring methods prevents real-time understanding of electrolyte consumption, potentially leading to electrolyte shortages and reaction interruptions, thus impacting hydrogen production efficiency. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a simple water electrolysis hydrogen production device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a simple water electrolysis hydrogen production device, including an electrolysis tank and two electrode rods. The electrolysis tank is a closed box structure, and two gas collecting hoods are inserted downwards into the top of the electrolysis tank. Both gas collecting hoods are cylindrical structures with closed tops and open bottoms. Both gas collecting hoods communicate with the inside of the electrolysis tank through their bottom openings, and the joints between the two gas collecting hoods and the top of the electrolysis tank are sealed. By setting two gas collecting hoods to separate the two electrode rods, effective separation of hydrogen and oxygen is achieved. During the water electrolysis process, hydrogen and oxygen are generated at the two electrode rods respectively and collected by their respective gas collecting hoods. Because hydrogen and oxygen are collected separately in two independent gas collecting hoods... Within the defined space, the electrodes are prevented from mixing during electrolysis. The two electrode rods are vertically inserted into the top center of the two gas collecting hoods, and the joints between the two electrode rods and the tops of the two gas collecting hoods are sealed. The overall structure of this water electrolysis hydrogen production device is simple and clear, mainly composed of an electrolysis tank, gas collecting hoods, gas collecting pipes, electrode rods, electrode plates, liquid injection pipes, partitions, and support legs. The shapes and connections of these components are relatively simple. The electrolysis tank is a closed box structure, the gas collecting hood is a cylindrical structure with a closed top and an open bottom, the partition is a simple plate structure, and the liquid injection pipe is a transparent tube structure. This simple structure makes the device easy to process and assemble during production, without requiring complex processes and equipment.

[0006] Preferably, the bottom ends of the two gas collecting hoods are separated from the inner wall of the bottom of the electrolysis tank. A partition is fixedly installed in the center of the electrolysis tank, between the two gas collecting hoods. The top of the partition is connected to the inner wall of the top of the electrolysis tank, and the bottom end of the partition is separated from the inner wall of the bottom of the electrolysis tank. The height of one end of the bottom of the partition is lower than the height of one end of the bottom of the gas collecting hood. This design prevents a small amount of gas escaping from the two gas collecting hoods from mixing freely at both ends of the electrolysis tank. During electrolysis, although the gas collecting hoods can effectively collect most of the hydrogen and oxygen, a small amount of gas may still escape from the gap between the bottom of the gas collecting hood and the inner wall of the bottom of the electrolysis tank. Without the partition, these escaping gases may mix in the electrolysis tank, thereby reducing the purity of hydrogen and oxygen. The partition effectively solves this problem by dividing the electrolysis tank into two relatively independent spaces. Even if a small amount of gas escapes, it will be confined to its own space, further reducing the possibility of oxygen and hydrogen mixing.

[0007] Preferably, the bottom of one end of the electrode rod inside the gas collecting hood is higher than the bottom of the gas collecting hood. Several electrode plates are connected to a section of the electrode rod inside the gas collecting hood with equal arc. This design significantly increases the contact area between the electrode and the electrolyte. During water electrolysis, the larger the contact area between the electrode and the electrolyte, the faster the electrolysis reaction rate. This is because the increased contact area between the electrode and the electrolyte allows more electrolyte to come into contact with the electrode surface, thus allowing more water molecules to undergo electrolysis on the electrode surface, producing hydrogen and oxygen. When current passes through the electrode rod, the electrode reaction area on the electrode plates increases, accelerating the water electrolysis reaction rate. Under the same current intensity, an electrode rod with multiple electrode plates can produce more gas than a single electrode rod.

[0008] Preferably, each of the two gas collection hoods has a vertically installed gas collection pipe at its top, and the two gas collection pipes are respectively connected to the inside of the two gas collection hoods.

[0009] Preferably, the bottom of the electrolysis tank is connected to a liquid injection pipe, and the inside of the liquid injection pipe is connected to the inside of the electrolysis tank. The end of the liquid injection pipe away from the electrolysis tank is vertically upward. The liquid injection pipe has a transparent tube structure, and the outer side of the vertically upward end of the liquid injection pipe is marked with graduations. This design makes it very convenient to replenish the electrolyte in the electrolysis tank. During the electrolysis of water to produce hydrogen, the electrolyte will be gradually consumed and needs to be replenished in time to ensure the continuous electrolysis reaction. The electrolyte is replenished into the electrolysis tank through the liquid injection pipe. The liquid dissolution process is simple and quick to operate. The liquid injection tube is connected to the bottom of the electrolysis tank. This structural design ensures that the prepared gas will not escape from the liquid injection tube. Since the density of gas is usually less than that of liquid, gas will rise in the electrolysis tank. However, since the liquid injection tube is located at the bottom of the electrolysis tank, the gas cannot escape through the liquid injection tube. In addition, the liquid injection tube is transparent and has a scale at its vertical end. According to the principle of communicating vessels, the liquid in the electrolysis tank and the liquid in the liquid injection tube are at the same level. By observing the height of the liquid in the liquid injection tube, the remaining liquid in the electrolysis tank can be intuitively understood.

[0010] Preferably, support legs are fixed at all four corners of the bottom of the electrolysis tank.

[0011] The beneficial effects of this utility model are:

[0012] (1) The present invention provides a simple water electrolysis hydrogen production device. The overall structure of the water electrolysis hydrogen production device is simple and clear. This simple structure makes the device easy to process and assemble during the production process. It does not require complex processes and equipment, thereby greatly reducing the production cost. In temporary use scenarios, this simple device can be quickly built and put into use without complicated installation and debugging processes. In some emergency situations where hydrogen needs to be produced quickly, the device can be quickly assembled and start working to meet temporary needs.

[0013] (2) The present invention provides a simple water electrolysis hydrogen production device. In this device, two gas collection hoods are set to separate the two electrode rods, thereby achieving effective separation of hydrogen and oxygen. During the water electrolysis process, hydrogen and oxygen are generated at the two electrode rods respectively and collected by their respective gas collection hoods. Since hydrogen and oxygen are collected in two independent spaces, they are prevented from mixing together during the electrolysis process. Thus, when using hydrogen in the future, there is no need to perform complex separation operations, which improves the purity of hydrogen production and ensures the quality of hydrogen, enabling it to better meet the needs of practical applications. Compared with the diaphragm commonly used in existing hydrogen production equipment, the structure of the gas collection hood is simpler, the manufacturing process is simpler, and the material cost is lower. While ensuring the separation effect of hydrogen and oxygen, the overall cost of the device is greatly reduced. This low-cost separation method makes the device more competitive in the market.

[0014] (3) The present invention provides a simple water electrolysis hydrogen production device. The bottom of the electrolysis tank of the water electrolysis hydrogen production device is connected to a liquid injection pipe. Electrolyte is added to the electrolysis tank through the liquid injection pipe. The operation is simple and quick. There is no need to disassemble the electrolysis tank or open the sealing device, which avoids the risk of gas leakage caused by adding liquid. The liquid injection pipe is connected to the bottom of the electrolysis tank. This structural design ensures that the prepared gas will not escape from the liquid injection pipe. This ensures the sealing of the electrolysis tank, so that hydrogen and oxygen can be effectively collected in the gas collection hood, which improves the efficiency and safety of gas collection. In addition, the liquid injection pipe is transparent and has a scale at the vertical end. According to the principle of communicating vessels, the liquid in the electrolysis tank and the liquid in the liquid injection pipe are at the same level. By observing the height of the liquid in the liquid injection pipe, the remaining liquid in the electrolysis tank can be intuitively understood. This design allows the operator to monitor the consumption of electrolyte in real time and replenish electrolyte in time to ensure the normal progress of the electrolysis reaction. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of a simple water electrolysis hydrogen production device provided by this utility model.

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the gas collection hood structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the assembly structure of the electrode rod and the motor plate of this utility model.

[0020] In the diagram: 1. Electrolysis tank; 2. Gas collecting hood; 3. Gas collecting pipe; 4. Electrode rod; 5. Electrode plate; 6. Liquid injection pipe; 7. Scale; 8. Baffle; 9. Support leg. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figures 1-4As shown, the present invention provides a simple water electrolysis hydrogen production device, comprising an electrolysis tank 1 and two electrode rods 4. The electrolysis tank 1 is a closed box structure, with two gas collecting hoods 2 inserted downwards from the top of the electrolysis tank 1. Both gas collecting hoods 2 are cylindrical structures with closed tops and open bottoms. Both gas collecting hoods 2 communicate with the interior of the electrolysis tank 1 through their bottom openings, and the joints between the two gas collecting hoods 2 and the top of the electrolysis tank 1 are sealed. By setting up two gas collecting hoods 2 to separate the two electrode rods 4, effective separation of hydrogen and oxygen is achieved. During the water electrolysis process, hydrogen and oxygen are generated at the two electrode rods 4 respectively and collected by their respective gas collecting hoods 2. Because hydrogen and oxygen are collected in two separate spaces, they are prevented from mixing during electrolysis. This eliminates the need for complex separation operations when using hydrogen later, improving the purity of the produced hydrogen and ensuring its quality, thus better meeting the needs of practical applications. Compared with the diaphragms commonly used in existing hydrogen production equipment, the gas collecting hood 2 has a simpler structure. Diaphragms in existing hydrogen production equipment usually need to have good chemical stability and ion selectivity, and their materials and manufacturing processes are relatively complex and costly. In contrast, the gas collecting hood 2 is simply a cylindrical structure with a closed top and an open bottom, which has a simple manufacturing process and low material cost. While ensuring the separation effect of hydrogen and oxygen, the overall cost of the device is greatly reduced. This low-cost separation method makes the device more competitive in the market, especially suitable for cost-sensitive applications. Two electrode rods 4 are vertically inserted into the center of the top of two gas collecting hoods 2, and the joints between the electrode rods 4 and the tops of the gas collecting hoods 2 are sealed. The overall structure of this water electrolysis hydrogen production device is simple and clear, mainly composed of an electrolysis tank 1, gas collecting hoods 2, gas collecting pipes 3, electrode rods 4, electrode plates 5, liquid injection pipes 6, partitions 8, and support legs 9. The shapes and connections of these components are... The design is relatively simple. The electrolysis tank 1 is a closed box structure, the gas collecting hood 2 is a cylindrical structure with a closed top and an open bottom, the partition 8 is a simple plate structure, and the liquid injection pipe 6 is a transparent tube structure. This simple structure makes the device easy to process and assemble during production, without the need for complex processes and equipment, thus greatly reducing production costs. In temporary use scenarios, this simple device can be quickly set up and put into use without complicated installation and debugging processes. In some emergency situations where hydrogen needs to be produced quickly, the device can be quickly assembled and start working to meet temporary needs.

[0023] In one optional embodiment of this invention, gaps are left between the bottom ends of the two gas collecting hoods 2 and the inner bottom wall of the electrolysis tank 1. A partition 8 is fixedly installed in the center of the electrolysis tank 1, located between the two gas collecting hoods 2. The top of the partition 8 is connected to the inner top wall of the electrolysis tank 1, and the bottom end of the partition 8 is left with a gap from the inner bottom wall of the electrolysis tank 1. The height of one bottom end of the partition 8 is lower than the height of one bottom end of the gas collecting hood 2. This design ensures that a small amount of gas escaping from the two gas collecting hoods 2 is blocked at both ends of the electrolysis tank 1 by the partition 8, preventing it from mixing freely inside the electrolysis tank 1. During electrolysis, although the gas collecting hoods 2 can effectively collect most of the hydrogen and oxygen, some gas may still be present. A small amount of gas may escape from the gap between the bottom of the gas collecting hood 2 and the inner wall of the bottom of the electrolysis tank 1. Without the presence of the partition 8, these escaped gases may mix in the electrolysis tank 1, thereby reducing the purity of hydrogen and oxygen. The partition 8 effectively solves this problem by dividing the electrolysis tank 1 into two relatively independent spaces. Even if a small amount of gas escapes, it will be confined within its own space, further reducing the possibility of oxygen and hydrogen mixing. This dual protection measure results in higher purity hydrogen produced, which can better meet the application scenarios with high requirements for hydrogen purity, such as fuel cell experiments and high-purity hydrogen production.

[0024] In one optional embodiment of this example, the bottom of one end of the electrode rod 4 inside the gas collecting hood 2 is higher than the bottom of the gas collecting hood 2. A section of the electrode rod 4 inside the gas collecting hood 2 is connected to several electrode plates 5 with equal arc. This design significantly increases the contact area between the electrode and the electrolyte. During water electrolysis, the larger the contact area between the electrode and the electrolyte, the faster the electrolysis reaction rate. This is because the increased contact area between the electrode and the electrolyte allows more electrolyte to contact the electrode surface, resulting in more water molecules undergoing electrolysis on the electrode surface to produce hydrogen and oxygen. When current passes through the electrode rod 4, the electrode reaction area on the electrode plates 5 increases, accelerating the water electrolysis reaction. Under the same current intensity, the electrode rod 4 with multiple electrode plates 5 can produce more gas than a single electrode rod 4. This not only improves the efficiency of hydrogen production and shortens the hydrogen production time, but also reduces the unit hydrogen production cost to a certain extent. For applications requiring rapid hydrogen production, this design has significant advantages.

[0025] In one optional embodiment of this example, each of the two gas collecting hoods 2 is vertically provided with a gas collecting pipe 3 at its top, and the two gas collecting pipes 3 are respectively connected to the interior of the two gas collecting hoods 2.

[0026] In one optional embodiment of this invention, a liquid injection pipe 6 is connected to the bottom of the electrolysis tank 1, and the interior of the liquid injection pipe 6 is connected to the interior of the electrolysis tank 1. The end of the liquid injection pipe 6 away from the electrolysis tank 1 is vertically upward. The liquid injection pipe 6 has a transparent tube structure, and a scale 7 is drawn on the outer side of the vertically upward end of the liquid injection pipe 6. This design makes it very convenient to replenish the electrolyte into the electrolysis tank 1. During the electrolysis of water to produce hydrogen, the electrolyte will be gradually consumed and needs to be replenished in time to ensure the continuous electrolysis reaction. Replenishing the electrolyte into the electrolysis tank 1 through the liquid injection pipe 6 is simple and quick, without disassembling the electrolysis tank 1 or opening the sealing device, avoiding the risk of gas leakage due to liquid replenishment. The liquid injection pipe 6 is connected to the bottom of the electrolysis tank 1. This structural design ensures that the produced gas will not leak. The gas escapes through the injection pipe 6. Since the density of gas is generally less than that of liquid, the gas will rise in the electrolysis tank 1. However, the injection pipe 6 is located at the bottom of the electrolysis tank 1, preventing the gas from escaping through it. This ensures the airtightness of the electrolysis tank 1, allowing hydrogen and oxygen to be effectively collected in the gas collection hood 2, improving the efficiency and safety of gas collection. In addition, the injection pipe 6 is transparent and has a scale 7 at its vertical end. According to the principle of communicating vessels, the liquid in the electrolysis tank 1 and the liquid in the injection pipe 6 are at the same level. By observing the height of the liquid in the injection pipe 6, the remaining liquid in the electrolysis tank 1 can be intuitively understood. This design allows operators to monitor the consumption of electrolyte in real time, replenish electrolyte in a timely manner, and ensure the normal progress of the electrolysis reaction. This transparent injection pipe 6 and scale 7 design also provides convenience for the daily maintenance and management of the device.

[0027] In one optional embodiment of this example, support legs 9 are fixed at the four corners of the bottom of the electrolysis tank 1.

[0028] In use, first, vertically insert the two electrode rods 4 into the top center of the two gas collecting hoods 2 respectively, ensuring a good seal at the connection between the electrode rods 4 and the gas collecting hoods 2 to prevent gas leakage. Insert the gas collecting hoods 2 with the electrode rods 4 into the corresponding positions on the top of the electrolysis tank 1, ensuring that the bottom opening of the gas collecting hood 2 is in communication with the inside of the electrolysis tank 1. At the same time, check the sealing between the gas collecting hood 2 and the top of the electrolysis tank 1 to prevent gas from escaping from the connection. Install the partition 8 in the center position inside the electrolysis tank 1, ensuring that the top of the partition 8 is tightly connected to the inner wall of the top of the electrolysis tank 1, and the bottom is tightly connected to the inner wall of the top of the electrolysis tank 1. An appropriate gap is left on the inner wall of the bottom of the electrolysis tank 1, and the height of the partition 8 is lower than the height of the bottom of the gas collecting hood 2. Support legs 9 are installed at the four corners of the bottom of the electrolysis tank 1 to ensure that the device is placed stably. Two gas collecting pipes 3 are connected to the top of the two gas collecting hoods 2 respectively, ensuring that the gas collecting pipes 3 are in communication with the inside of the gas collecting hoods 2 for collecting hydrogen and oxygen. The liquid injection pipe 6 is connected to the bottom of the electrolysis tank 1, ensuring that the inside of the liquid injection pipe 6 is in communication with the inside of the electrolysis tank 1. Check whether the transparency and scale 7 of the liquid injection pipe 6 are clearly visible. After installation, check the sealing of the entire device. Pay special attention to the connections between the gas collecting hood 2 and the electrolysis tank 1, the electrode rod 4 and the gas collecting hood 2, and the injection pipe 6 and the electrolysis tank 1, ensuring there are no gas leaks. Then, inject electrolyte into the electrolysis tank 1 through the injection pipe 6. During injection, observe the scale 7 on the injection pipe 6 to ensure the electrolyte level reaches the appropriate height in the electrolysis tank 1. The electrolyte level should be higher than the electrode plate 5 at the bottom of the electrode rod 4. Connect the electrode rod 4 to the DC power supply, ensuring the positive and negative terminals are correctly connected. Hydrogen will be generated at the cathode, and oxygen will be generated at the anode. After connecting the power supply, check the... Check if the source voltage and current meet the electrolysis requirements. Finally, turn on the DC power supply to start the water electrolysis process to produce hydrogen. Water molecules in the electrolyte undergo an electrolytic reaction under the action of electrode plate 5. Hydrogen and oxygen are generated at the cathode and anode, respectively, and escape upward through the gas collecting hood 2. Hydrogen and oxygen are collected through the gas collecting pipe 3. Since hydrogen and oxygen are effectively separated by the gas collecting hood 2 and the partition 8, high-purity hydrogen and oxygen can be collected separately. During the collection process, pay attention to the gas generation rate and the gas state in the gas collecting pipe 3 to ensure smooth gas collection.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A simple water electrolysis hydrogen production device, comprising an electrolysis tank (1) and two electrode rods (4), characterized in that: The electrolytic box (1) is a closed box structure. Two gas collecting hoods (2) are inserted downwards at the top of the electrolytic box (1). Both gas collecting hoods (2) are cylindrical structures with closed tops and open bottoms. Both gas collecting hoods (2) are connected to the inside of the electrolytic box (1) through the bottom openings. The joints between the two gas collecting hoods (2) and the top of the electrolytic box (1) are sealed. Two electrode rods (4) are vertically inserted into the top center of the two gas collecting hoods (2). The joints between the two electrode rods (4) and the top of the two gas collecting hoods (2) are sealed.

2. The simplified water electrolysis hydrogen production device according to claim 1, characterized in that: The bottom ends of the two gas collecting hoods (2) are separated from the bottom inner wall of the electrolysis tank (1). A partition (8) is fixedly installed in the center of the electrolysis tank (1) and between the two gas collecting hoods (2). The top of the partition (8) is connected to the top inner wall of the electrolysis tank (1). The bottom end of the partition (8) is separated from the bottom inner wall of the electrolysis tank (1). The height of one end of the bottom of the partition (8) is lower than the height of one end of the bottom of the gas collecting hood (2).

3. A simple water electrolysis hydrogen production device according to claim 2, characterized in that: The bottom of one end of the electrode rod (4) inside the gas collecting hood (2) is higher than the bottom of the gas collecting hood (2). A section of the electrode rod (4) inside the gas collecting hood (2) is connected to several electrode plates (5) with equal arc.

4. A simple water electrolysis hydrogen production device according to claim 1, characterized in that: Both gas collection hoods (2) have vertically installed gas collection pipes (3) at their tops, and the two gas collection pipes (3) are connected to the interior of the two gas collection hoods (2) respectively.

5. A simple water electrolysis hydrogen production device according to claim 1, characterized in that: The bottom of the electrolysis tank (1) is connected to a liquid injection pipe (6), and the inside of the liquid injection pipe (6) is connected to the inside of the electrolysis tank (1). The end of the liquid injection pipe (6) away from the electrolysis tank (1) is vertically upward. The liquid injection pipe (6) is a transparent tube structure. The outer side of the vertically upward end of the liquid injection pipe (6) is marked with a scale (7).

6. A simple water electrolysis hydrogen production device according to claim 1, characterized in that: The electrolysis box (1) has support legs (9) fixed at the four corners of the bottom.

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