Polar plate with double isolating layers and electrolytic bath

Abstract

The utility model discloses a polar plate with double isolating layers and an electrolytic bath, relates to the field of hydrogen production by water electrolysis, and in particular relates to the polar plate with the double isolating layers and the electrolytic bath. Comprising a main body, an electrolyte inlet, an oxygen outlet, a hydrogen outlet, scale marks, a floating ball liquid level meter, bolts, an anode, a cathode, a partition plate, a direct-current power supply anode, a direct-current power supply cathode, an anti-corrosion coating and a high-temperature insulating layer. According to the utility model, the anti-corrosion coating and the high-temperature insulating layer are introduced, so that double protection on the polar plate is realized, corrosive substances in electrolyte and high temperature are prevented from damaging the polar plate, and the service life of the polar plate is prolonged; through the bolt fixing design, it is ensured that the polar plate is stable and does not loosen in the electrolysis process, meanwhile, maintenance and replacement operation is simplified, and the maintenance efficiency of equipment is improved; and the floating ball liquid level meter and the scale marks are introduced, so that the liquid level of the electrolyte can be monitored in real time, and the problem of equipment failure or reaction efficiency caused by abnormal liquid level is avoided, thereby improving the safety and operation efficiency of the equipment.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen production by water electrolysis, and more specifically to a plate and an electrolytic cell with a double isolation layer. Background Art

[0002] In existing electrolysis equipment, plates and electrolytic cells, as key components in the electrolysis process, are widely used in fields such as chemical industry, electroplating, and chlor-alkali industry. However, traditional electrolytic cell designs usually have some defects, especially in terms of plate durability, maintenance convenience, and operation monitoring. An existing composite plate and electrolytic cell for an electrolytic cell (Publication No.: CN220926975U) has the following drawbacks and needs further improvement.

[0003] 1. Traditional equipment uses a single conductive material that is directly exposed to the electrolyte. One of the defects of this design is that the plate is easily eroded by corrosive chemical substances in the electrolyte. During long-term use, corrosion will weaken the conductive performance of the plate, reduce the electrolysis efficiency, and increase energy consumption. More importantly, when the plate is severely corroded, it may cause equipment damage and affect the stability of the entire electrolysis process. Since the plates of traditional equipment lack the ability to withstand high temperatures, in a high-temperature electrolysis environment, the materials of the plates are prone to deformation or failure, and in severe cases, it may even pose a safety hazard. Therefore, there is an urgent need for a plate and an electrolytic cell with the function of a double isolation layer.

[0004] 2. Traditional equipment does not have a detachable design. The installation and disassembly process of the plates usually requires professional operation and consumes a large amount of time and manpower. This structure makes equipment maintenance more complex and inefficient, especially in industrial environments where the plates need to be frequently cleaned or replaced. Once the plate is damaged or has problems, it often requires shutdown for maintenance, affecting production efficiency. And due to the lack of the ability to quickly disassemble and assemble in traditional equipment, the entire repair process may be very cumbersome. Therefore, there is an urgent need for a plate and an electrolytic cell with a detachable design.

[0005] 3. Traditional equipment lacks a monitoring design, resulting in situations where the electrolyte is too much or too little, thus affecting the efficiency of the electrolysis reaction. Excessive electrolyte leads to overflow, increasing the workload of cleaning and maintenance and even causing equipment damage. On the other hand, too little electrolyte may result in incomplete reactions, reducing the electrolysis efficiency, increasing energy consumption and costs. In the absence of a liquid level indication function, the operator can only judge the liquid level through experience or manual inspection, which is not only inaccurate but also prone to operating errors. Therefore, there is an urgent need for a plate and an electrolytic cell with a liquid level indication function. Summary of the Invention

[0006] The main purpose of the utility model is to provide a plate and an electrolytic cell with a double isolation layer, which can effectively solve the problems in the background art.

[0007] To achieve the above object, the technical solution adopted by the present utility model is as follows: There is a plate electrode and an electrolytic cell with a double isolation layer. An electrolyte inlet is installed on one side of the main body, an oxygen outlet is installed above the main body, a hydrogen outlet is installed above the main body, a scale mark is installed on one side of the main body, a float level gauge is installed inside the main body, a bolt is installed above the main body, a positive pole of a DC power supply is installed below the main body, and a negative pole of a DC power supply is installed below the main body.

[0008] For the above-mentioned plate electrode and electrolytic cell with a double isolation layer, an anode is installed inside the main body, a cathode is installed inside the main body, and a separator is installed inside the main body.

[0009] For the above-mentioned plate electrode and electrolytic cell with a double isolation layer, an anti-corrosion coating is installed outside the main body, and a high-temperature insulation layer is installed inside the anti-corrosion coating.

[0010] For the above-mentioned plate electrode and electrolytic cell with a double isolation layer, the bolt can rotate according to the internal spiral through several round holes above the main body.

[0011] For the above-mentioned plate electrode and electrolytic cell with a double isolation layer, the anti-corrosion coating and the high-temperature insulation layer adopt a detachable design.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] 1. By adding an anti-corrosion coating and a high-temperature insulation layer, the present utility model can solve the problems that the plate electrode in the traditional electrolytic cell is easily corroded and damaged by high temperature. The anti-corrosion coating can block the corrosive substances in the electrolyte, thereby protecting the conductivity of the plate electrode and prolonging its service life. The introduction of the anti-corrosion coating can maintain the stable conductivity of the plate electrode and improve the efficiency of the entire electrolysis process. In addition, the second-layer high-temperature insulation layer is to solve the problem that the plate electrode deforms or fails in a high-temperature environment. The electrolysis process is often accompanied by a relatively high temperature, and the plate electrode material without heat insulation protection may have its performance degraded due to thermal expansion or high-temperature oxidation. The high-temperature insulation layer can not only withstand the high temperature generated during the electrolysis process, but also prevent the plate electrode from overheating, thereby maintaining the operation stability of the equipment.

[0014] 2. By adding a slot-type card slot and a bolt, the present utility model can ensure that the plate electrode will not loosen or shift during the electrolysis process, ensuring the stability of the electrolysis reaction. At the same time, the bolt design simplifies the maintenance operation. Maintenance personnel can easily disassemble or tighten the bolt, replace or clean the plate electrode, shortening the downtime and improving the production efficiency. In addition, as a common fixing component, the bolt has a low manufacturing cost and is easy to operate, and is suitable for use in various electrolytic equipment, improving the maintenance efficiency and operation stability of the equipment as a whole.

[0015] 3. The utility model adds a float level gauge, and the scale markings can float up and down with the liquid level of the electrolyte, reflecting the change of the liquid level in real time, ensuring that the operator can always master the accurate height of the liquid in the electrolytic cell. Through the scale markings, the operator can clearly see the position of the current liquid level, thus avoiding the situation of too high or too low electrolyte. When the electrolyte is too high, overflow may cause equipment damage or increase the cleaning difficulty; when the electrolyte is too low, it may lead to incomplete electrolysis reaction, affecting product quality or increasing energy consumption. The addition of the liquid level monitoring system can not only improve the reaction efficiency and safety, but also reduce the failure risk caused by out-of-control liquid level. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 is a flow chart of the overall structure of the utility model.

[0018] In the figure: 1, main body; 2, electrolyte inlet; 3, oxygen outlet; 4, hydrogen outlet; 5, scale markings; 6, float level gauge; 7, bolt; 8, anode; 9, cathode; 10, partition; 11, positive pole of DC power supply; 12, negative pole of DC power supply; 13, anti-corrosion coating; 14, high-temperature insulation layer. Detailed Embodiments

[0019] In order to make the technical means, creative features, achieved purposes and effects of the utility model easy to understand, the following further elaborates the utility model in combination with specific embodiments.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Embodiment

[0022] Please refer to FIGS. 1-2. The present utility model provides a technical solution:

[0023] A plate electrode and an electrolytic cell with a double isolation layer. An electrolyte inlet 2 is installed on one side of the main body 1, an oxygen outlet 3 is installed above the main body 1, a hydrogen outlet 4 is installed above the main body 1, a scale mark 5 is installed on one side of the main body 1, a float level gauge 6 is installed inside the main body 1, a bolt 7 is installed above the main body 1, a positive electrode of a DC power supply 11 is installed below the main body 1, and a negative electrode of a DC power supply 12 is installed below the main body 1.

[0024] The following are the specific implementation manners of the components of the present utility model:

[0025] 1. Main body: The main body is the core container of the entire electrolytic cell, responsible for accommodating the electrolyte and main components such as electrodes. The structural design of the main body not only needs to ensure good sealing performance but also has sufficient strength to resist the internal and external pressures generated during the electrolysis process. Usually, various inlets and outlets are reserved on one side and the top of the main body to facilitate the entry and exit of the electrolyte and the discharge of the generated gas.

[0026] 2. Electrolyte inlet: The electrolyte inlet is located on one side of the main body and is used to safely and stably inject the electrolyte into the electrolytic cell. A sealing valve or a flow control device is usually equipped at the inlet to prevent the leakage of the electrolyte and ensure the adjustability of the flow rate during the injection process, so as to precisely control the amount and flow rate of the electrolyte.

[0027] 3. Oxygen outlet: The oxygen outlet is located at the top of the main body and is used to discharge the oxygen generated during the electrolysis process. This outlet is connected to a conduit system, which can safely discharge the oxygen from the electrolytic cell or introduce it into a gas recovery device to ensure that the gas pressure inside the device remains balanced and avoid potential safety hazards caused by gas accumulation.

[0028] 4. Hydrogen outlet: The hydrogen outlet is also set at the top of the main body. Similar to the oxygen outlet, its main function is to discharge the hydrogen generated during the electrolysis process. The design of the hydrogen outlet should ensure the smooth discharge of the gas to avoid excessive accumulation of hydrogen in the cell. In addition, the hydrogen can be guided to a safe area or used for industrial applications through the conduit system.

[0029] 5. Scale mark: The scale mark is usually located on the outside of the electrolytic cell and is used to indicate the liquid level height of the electrolyte. Through a transparent observation window or an external scale, the operator can clearly see the change in the liquid level, thereby precisely controlling the amount of the electrolyte and ensuring that the electrolysis process is carried out at the optimal liquid level.

[0030] 6. Float level gauge: The float level gauge is installed inside the electrolytic cell to monitor the height of the electrolyte in real time. When the liquid level rises or falls, the float will move accordingly, and through mechanical or electronic devices, it will display the current liquid level, helping the operator to keep the electrolyte within the set range and preventing the liquid level from being too high or too low from affecting the electrolysis effect.

[0031] 7. Bolt: Bolts are used to fix and connect different components of the electrolytic cell, especially playing a key role in the fixation of the electrode plate and the main body. The bolt design can be fixed or disassembled by rotation, providing a convenient detachable function, making the maintenance and replacement of the electrode plate more efficient.

[0032] 8. Anode: The anode is the positive electrode where oxygen is generated during the electrolysis process. The anode is usually made of materials with good corrosion resistance and electrical conductivity, capable of withstanding long-term electrolysis reactions and maintaining efficient oxidation-reduction reactions. The anode is installed inside the electrolytic cell and is connected to the power supply to provide energy for the electrolysis reaction.

[0033] 9. Cathode: The cathode is the negative electrode where hydrogen is generated during the electrolysis process. The cathode is also made of metal materials with good electrical conductivity, and its durability must ensure that it will not be corroded during the electrolysis process. The cathode is installed opposite the anode inside the electrolytic cell to form a stable electrolysis system.

[0034] 10. Diaphragm: The diaphragm is used to separate the anode and the cathode, preventing them from coming into direct contact, while allowing the electrolyte to flow freely. The diaphragm is usually made of insulating materials, which can block by-products or impurities in the electrolyte from affecting the electrolysis reaction and ensure the efficient progress of electrolysis.

[0035] 11. Positive pole of DC power supply: The positive pole of the DC power supply is connected to the anode, providing current to keep the electrolysis reaction ongoing. This positive pole must ensure a stable current input to maintain the reaction rate between the anode and the electrolyte unchanged. The design of the positive pole needs to have high electrical conductivity and ensure its tight connection with the power supply device.

[0036] 12. Negative pole of DC power supply: The negative pole of the DC power supply is connected to the cathode, providing a stable negative current for the electrolysis reaction. The electrical conductivity of the negative pole has an important impact on the efficiency of the electrolysis system, ensuring the efficient generation of hydrogen during the reaction process. The material and connection design of the negative pole should cooperate with the positive pole to form a complete electrolysis circuit.

[0037] 13. Anti-corrosion coating: The anti-corrosion coating is located on the outside of the main body, used to prevent corrosive chemical substances in the electrolyte from eroding the main body of the electrolytic cell. This coating is composed of corrosion-resistant materials, such as special coatings or composite materials, which can significantly extend the service life of the equipment and reduce the maintenance requirements of the equipment.

[0038] 14. High-temperature insulation layer: The high-temperature insulation layer is located inside the anti-corrosion coating, and its main function is to protect the stability of the electrolytic cell during high-temperature electrolysis reactions. It can effectively isolate the high temperature generated during the electrolysis process, prevent heat transfer to other components of the equipment, and ensure the safe progress of the electrolysis reaction under high-temperature conditions.

[0039] The following is the specific technical logic implementation method of the innovation points of the present utility model:

[0040] 1. Technical logic implementation of the anti-corrosion coating and the high-temperature insulation layer: The present utility model realizes double protection of the electrode plate by adding an anti-corrosion coating and a high-temperature insulation layer on the surface of the electrode plate. As the first line of defense, the anti-corrosion coating uses corrosion-resistant materials, such as special coatings or composite materials, to form an isolation layer on the surface of the electrode plate, preventing corrosive substances such as acids and alkalis in the electrolyte from directly contacting the electrode plate metal and reducing the impact of corrosion on the conductivity. This protective layer is achieved through coating materials with good chemical stability, effectively extending the service life of the electrode plate. The high-temperature insulation layer, on the other hand, forms the second line of defense under the anti-corrosion coating, capable of withstanding the high temperature generated during electrolysis and preventing the electrode plate from deforming or failing due to thermal expansion or high-temperature oxidation. The high-temperature insulation layer is usually composed of ceramics or other high-temperature-resistant materials, which can isolate the influence of high temperature on the electrode plate, thus ensuring that the electrode plate can still maintain stable conductivity and mechanical strength in a high-temperature environment. This double-layer isolation design solves the problems of easy corrosion and high-temperature damage of the electrode plate in traditional electrolysis equipment through the optimization of coating technology and materials.

[0041] 2. Technical logic implementation of the bolt fixation and detachable structure: The present utility model realizes the stable installation and convenient maintenance of the electrode plate through the slot-type card slot and bolt structure. As the fixing component, the bolt is installed above the main body of the electrolytic cell and firmly fixes the electrode plate in the cell body by means of spiral rotation. The design of the bolt ensures that the electrode plate will not loosen or shift due to vibration or other mechanical stresses during electrolysis, guaranteeing the stability of the electrolysis reaction. The slot-type card slot provides additional fixing support, and the electrode plate can be fixed in a predetermined position through the card slot, avoiding operation errors. At the same time, the detachable nature of the bolt structure simplifies the equipment maintenance process. Maintenance personnel can easily disassemble the electrode plate by rotating the bolt and perform cleaning or replacement without complex tools. This design not only improves the maintenance efficiency of the equipment but also shortens the downtime and enhances the overall production efficiency, making it suitable for electrolysis equipment that requires frequent maintenance.

[0042] 3. Technical Logic Implementation of Float-Level Gauge and Scale Markings: The liquid-level monitoring system achieves precise control of the electrolyte liquid level through the combination of a float-level gauge and scale markings. The float-level gauge is installed inside the electrolytic cell, capable of floating up and down with the change of the liquid level, and transmitting the liquid-level signal to the external display device through a floating device, ensuring that the operator can grasp the liquid-level height in real time. The scale markings are located outside the electrolytic cell, usually cooperating with a transparent window to directly display the liquid-level range of the electrolyte, helping the operator quickly determine whether the liquid level is within the safe range. When the liquid level is too high, the system will remind the operator to take measures to avoid overflow, preventing the electrolyte from damaging the equipment or causing cleaning troubles; when the liquid level is too low, the system will prompt the operator to supplement the electrolyte to avoid incomplete electrolysis reactions or a decline in product quality. Through this liquid-level monitoring system, the equipment can operate efficiently, reducing the risk of failures caused by abnormal liquid levels and enhancing the safety and automation level of the entire electrolysis process.

[0043] The following is the working process of the present utility model:

[0044] 1. Preparation: First, ensure that the main body of the electrolytic cell is correctly installed and sealed. The operator injects an appropriate amount of electrolyte into the electrolytic cell through the electrolyte inlet, and the float-level gauge reflects the height of the electrolyte in real time as the liquid level changes. Through the scale markings, the operator can intuitively judge whether the electrolyte has reached the predetermined liquid-level height. After ensuring that the liquid level is within the set range, the electrolytic cell is ready to enter the working state.

[0045] 2. Power-on and Startup: The operator connects the DC power supply, with the positive pole of the DC power supply connected to the anode and the negative pole connected to the cathode. The current is transmitted through the power supply to the anode and the cathode, and the electrolysis reaction begins. Oxygen is generated at the anode and hydrogen is generated at the cathode. The oxygen and hydrogen are respectively discharged from the equipment through the oxygen outlet and the hydrogen outlet. During the electrolysis process, the anti-corrosion coating effectively protects the electrode plates from being eroded by corrosive substances in the electrolyte, while the high-temperature insulation layer ensures that the electrode plates will not deform or fail in a high-temperature environment, guaranteeing the continuous and stable progress of the electrolysis reaction.

[0046] 3. Monitoring and Maintenance: During the operation of the equipment, the operator can always grasp the change of the electrolyte liquid level in the electrolytic cell through the liquid-level monitoring system (float-level gauge and scale markings), ensuring that the liquid level is within the safe range. If the liquid level is too low, the operator can supplement the electrolyte through the electrolyte inlet; if the liquid level is too high, the system will prompt that it is necessary to discharge the excess electrolyte. When maintenance is required, the bolt design allows the operator to easily disassemble or replace the electrode plates, simplifying the cleaning and maintenance work of the equipment. After the electrolysis reaction ends, turn off the power supply, drain the electrolyte, and conduct necessary equipment inspections and maintenance to ensure the smooth progress of the next operation.

[0047] The following are the parameters of the present utility model:

[0048] Parameter Name Parameter Description Oxygen Outlet Diameter 25mm Hydrogen Outlet Diameter 25mm Float Level Gauge Range 0 - 500mm Scale Identification Accuracy ±1mm Anode Material Titanium Cathode Material Nickel Separator Material Ceramic Polymer Anticorrosion Coating Thickness 0.5 - 2mm

[0049] Temperature Resistance Range of High - Temperature Insulation Layer -50℃ to 500℃ Bolt Specification M10 DC Power Supply Voltage Range 5V - 100V

[0050] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An electrolytic cell with a double isolation layer, comprising a main body (1), characterized in that: An electrolyte inlet (2) is installed on one side of the main body (1), an oxygen outlet (3) is installed above the main body (1), a hydrogen outlet (4) is installed above the main body (1), a scale mark (5) is installed on one side of the main body (1), a float level gauge (6) is installed inside the main body (1), a bolt (7) is installed above the main body (1), a positive electrode of a DC power supply (11) is installed below the main body (1), and a negative electrode of a DC power supply (12) is installed below the main body (1).

2. An electrolytic cell with a double isolation layer according to claim 1, characterized in that: An anode (8) is installed inside the main body (1), a cathode (9) is installed inside the main body (1), and a partition (10) is installed inside the main body (1).

3. An electrolytic cell with a double isolation layer according to claim 1, characterized in that: An anti-corrosion coating (13) is installed outside the main body (1), and a high-temperature insulation layer (14) is installed inside the anti-corrosion coating (13).

4. The electrolytic cell with a double isolation layer according to claim 1, characterized in that: The bolt (7) can rotate in a spiral inside through several round holes above the main body (1).

5. The electrolytic cell with a double isolation layer according to claim 3, characterized in that: The anti-corrosion coating (13) and the high-temperature insulation layer (14) are designed to be detachable.

6. A plate with a double isolation layer, characterized in that: It includes an electrolytic cell with a double isolation layer according to any one of claims 1 to 5.

Images