Electrolytic hydrogen production high-purity hydrogen purification device
Patent Information
- Application Number
- CN202522605301.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-09
AI Technical Summary
含有氧气的氢气进入反应釜内后，在催化剂的作用下使氧气与氢气生成水，达到去除氧气的目的，然而这种方式在使用时存在如下问题，催化剂在反应釜内位置固定，不能与釜体内各处的气体接触，不能达到充分除氧的目的，除氧效果不好，使用不方便，实用性差
[0013]与现有技术相比本实用新型的有益效果为：在一次除氧筒腔室内对氢气进行除杂反应时，可以使催化剂机构移动，使催化剂机构可以与一次除氧筒腔室内各处的气体接触，对氢气的除杂效果更好，使用方便，可靠性和实用性高。
Smart Images
Figure CN224912127U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hydrogen purification, and in particular to a high-purity hydrogen purification device for electrolytic hydrogen production. Background Technology
[0002] Electrolysis of water is a clean and efficient green hydrogen production technology. However, the hydrogen produced during the electrolysis process usually contains a certain amount of impurities, mainly water vapor and oxygen. Among them, oxygen mainly comes from tiny leaks in the electrolyzer membrane or gas cross-permeation. Although its content is low (usually tens to hundreds of ppm), if it is not removed, it will not only reduce the purity of hydrogen, but may also form an explosive gas mixture during subsequent storage, transportation or use, posing serious safety hazards.
[0003] Currently, catalytic deoxygenation is widely used in industry to purify electrolyzed hydrogen. This method utilizes the chemical reaction between hydrogen and oxygen under the action of a catalyst to produce water (2H2 + O2 → 2H2O), and then removes the generated water through a subsequent drying unit, thereby achieving deep deoxygenation. Commonly used catalysts include supported palladium (Pd) and platinum (Pt) catalysts, which are usually fixed and packed in the reaction vessel or fixed-bed reactor in granular or honeycomb form.
[0004] However, in existing technologies, catalysts are mostly statically fixed inside the reactor, for example, by using support plates, grids, or packing layers to fix them in a specific area. When hydrogen containing oxygen enters the reactor, the catalyst reacts the oxygen and hydrogen to form water, thus removing oxygen. However, this method has the following problems: the catalyst is fixed in position inside the reactor and cannot come into contact with gases throughout the reactor, resulting in incomplete deoxygenation, poor deoxygenation effect, inconvenience, and poor practicality. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an electrolytic hydrogen purification device that allows the catalyst mechanism to move during the hydrogen purification reaction in the primary deoxygenation chamber, enabling the catalyst mechanism to contact the gas at various points in the primary deoxygenation chamber, resulting in better hydrogen purification effect, ease of use, high reliability and practicality.
[0006] This utility model discloses a high-purity hydrogen purification device for electrolytic hydrogen production, comprising a base plate, a support frame, a primary deoxygenation cylinder, and an inlet pipe. The primary deoxygenation cylinder is fixedly mounted on the support frame and has a chamber. The output end of the inlet pipe is connected to the chamber of the primary deoxygenation cylinder, and a valve is installed on the inlet pipe. The device also includes a catalyst mechanism, a moving mechanism, a conveying mechanism, a drying mechanism, and a secondary deoxygenation mechanism. The catalyst mechanism is installed in the chamber of the primary deoxygenation cylinder and has a catalyst mounted on it. The moving mechanism is used to move the catalyst mechanism, and the input end of the conveying mechanism is connected to the primary deoxygenation cylinder. The lower part of the deoxygenation cylinder chamber is connected to the output end of the conveying mechanism, which is connected to the drying mechanism. The drying mechanism has a drying function, and its output end is connected to the secondary deoxygenation mechanism, which has a deoxygenation function. An oxygen concentration monitor is installed on the primary deoxygenation cylinder to detect the oxygen concentration within the chamber. When purifying hydrogen, the hydrogen to be purified is first conveyed to the chamber of the primary deoxygenation cylinder through the inlet pipe. Then, the valve on the inlet pipe is closed. The hydrogen then flows into the chamber of the primary deoxygenation cylinder and reacts with the catalyst in the chamber. In the primary deoxygenation chamber, a catalyst is used to react the small amount of oxygen mixed in with the hydrogen to produce water. Simultaneously, a moving mechanism moves the catalyst within the chamber, allowing it to contact the gas at different locations within the chamber. This promotes the reaction of oxygen in the hydrogen at various points, achieving uniform oxygen removal. Once the oxygen concentration in the primary deoxygenation chamber reaches a specified level, the conveying mechanism and the valve on the inlet pipe are opened, allowing the next batch of hydrogen to be purified to enter the primary deoxygenation chamber through the inlet pipe. Meanwhile, the hydrogen from the primary deoxygenation chamber, after the impurity removal reaction, is conveyed to the drying mechanism. The drying mechanism then dries the moisture in the hydrogen. The dried hydrogen then re-enters the secondary deoxygenation mechanism to remove residual oxygen before being discharged into a dedicated external collection tank. This process, which involves moving the catalyst within the primary deoxygenation chamber to contact the gas at various points, results in better impurity removal, ease of use, and high reliability and practicality.
[0007] Preferably, the catalyst mechanism includes a ring and a carrier. A groove is provided in the primary deoxygenation chamber, and the ring is slidably installed in the groove within the primary deoxygenation chamber. The carrier is fixedly installed on the ring, and a catalyst is placed on the carrier. The ring is mounted on a moving mechanism for moving the ring. The carrier can be made of aluminum alloy or activated carbon; the catalyst can be made of palladium or platinum. When the hydrogen to be purified enters the primary deoxygenation chamber, the hydrogen comes into contact with the catalyst on the carrier, causing the oxygen mixed in the hydrogen to react with the hydrogen under the action of the catalyst to generate water, thereby achieving the purpose of removing oxygen from the hydrogen. This facilitates the removal of impurities from the hydrogen.
[0008] Preferably, the moving mechanism includes a hydraulic cylinder and a push rod. The hydraulic cylinder is fixedly mounted on the base plate, and the power output end of the hydraulic cylinder is provided with a push rod. The push rod is slidably mounted on the primary deoxygenation cylinder, and the upper end of the primary deoxygenation cylinder contacts the lower end of the ring. Opening the hydraulic cylinder causes the push rod to drive the ring to rise and fall, thereby adjusting the height of the carrier. This allows the catalyst on the carrier to contact the gas at different heights in the primary deoxygenation cylinder chamber, facilitating the removal of oxygen from hydrogen.
[0009] Preferably, the conveying mechanism includes a conveying pipe, multiple cooling plates, and a drain pipe. The input end of the conveying pipe is connected to the lower part of the primary deoxygenation chamber. A valve is provided on the left side of the conveying pipe. The lower part of the conveying pipe is U-shaped. The output end of the conveying pipe is connected to the drying mechanism. The cooling ends of the multiple cooling plates are embedded in the side wall of the conveying pipe, and the heat dissipation ends of the multiple cooling plates are located on the outside of the conveying pipe. The output end of the conveying pipe is connected to the drying mechanism. The drain pipe is installed at the U-shaped position at the lower part of the conveying pipe and is equipped with a valve. When hydrogen enters the conveying pipe in the primary deoxygenation chamber, the multiple cooling plates are opened, which lowers the temperature in the conveying pipe. The water vapor in the hydrogen condenses into liquid upon cooling. The liquid water slides down to the lower part of the conveying pipe under the action of gravity. Then, the hydrogen enters the drying mechanism to remove the remaining water vapor. When it is necessary to discharge the liquid water at the lower part of the conveying pipe, the valve on the drain pipe is opened, allowing the water at the lower part of the conveying pipe to be discharged through the drain pipe, which facilitates the removal of water vapor from the hydrogen.
[0010] Preferably, the drying mechanism includes a fixed frame and a drying cylinder. The drying cylinder is fixedly installed on the fixed frame and has a drying chamber. The drying chamber is filled with drying packing material. The output end of the conveying pipe is connected to the upper part of the drying chamber of the drying cylinder. The hydrogen gas that has been condensed and dehydrated enters the drying cylinder through the conveying pipe. Then, the hydrogen gas passes through the drying packing material, and the drying packing material dries the residual moisture in the hydrogen gas, which facilitates the removal of water from the hydrogen gas. The drying packing material can be silica gel packing material.
[0011] Preferably, the secondary deoxygenation mechanism includes a secondary deoxygenation cylinder, a sealing cap, a delivery pump, a discharge pipe, and a connector. The secondary deoxygenation cylinder is fixedly mounted on a fixed frame and has a cavity inside. A selectively permeable membrane is disposed in the middle of the cavity, and the selectively permeable membrane has the function of removing oxygen. The sealing cap is installed at the upper end of the cavity of the secondary deoxygenation cylinder by bolts. The input end of the delivery pump is connected to the drying chamber of the drying cylinder, and the output end of the delivery pump is located inside the cavity of the secondary deoxygenation cylinder, below the selectively permeable membrane. The input end of the discharge pipe is connected to the upper part of the cavity of the secondary deoxygenation cylinder, and the discharge pipe... The input end is located above the selective permeable membrane, and a valve is installed on the discharge pipe. A connector is installed at the output end of the discharge pipe. The selective permeable membrane can be a palladium-silver alloy membrane or a polyimide polymer membrane. It has the function of allowing hydrogen to pass through while retaining oxygen. Connect the hydrogen collection device to the connector, turn on the delivery pump, and let the dried hydrogen enter the lower part of the secondary deoxygenation cylinder cavity. Then, let the hydrogen pass through the selective permeable membrane to remove the residual oxygen in the hydrogen. The purity of the hydrogen is improved through secondary deoxygenation. After that, the hydrogen is discharged to the external collection device through the discharge pipe and connector, which improves the impurity removal effect of the hydrogen.
[0012] Preferably, a temperature sensor is installed on the primary deaerator cylinder, with the sensing section of the temperature sensor located inside the chamber of the primary deaerator cylinder. This arrangement facilitates the monitoring of the temperature inside the chamber of the primary deaerator cylinder. Furthermore, multiple semiconductor cooling plates can be installed on the primary deaerator cylinder, with the cooling end of the cooling plate located inside the chamber of the primary deaerator cylinder and the heat dissipation end located outside the primary deaerator cylinder. When the temperature inside the chamber of the primary deaerator cylinder is too high, the semiconductor cooling plate is activated to lower the temperature inside the chamber of the primary deaerator cylinder.
[0013] Compared with the prior art, the advantages of this utility model are as follows: when hydrogen is subjected to a depurification reaction in the primary deoxygenation chamber, the catalyst mechanism can be moved so that the catalyst mechanism can come into contact with the gas in various parts of the primary deoxygenation chamber, resulting in a better depurification effect on hydrogen, convenient use, and high reliability and practicality. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model; Figure 2 This is a schematic diagram of the second isometric structure of this utility model; Figure 3 It is a structural schematic diagram of hydraulic cylinders, push rods, and rings, etc. Figure 4 This is a cross-sectional structural diagram of a primary deaerator; Figure 5 This is a schematic diagram of the conveying mechanism; Figure 6 This is a cross-sectional structural diagram of the conveying mechanism.
[0015] The following are labels in the attached diagram: 1. Base plate; 2. Support; 3. Primary deaerator; 4. Inlet pipe; 5. Ring; 6. Carrier; 7. Hydraulic cylinder; 8. Push rod; 9. Conveying pipe; 10. Cooling plate; 11. Drain pipe; 12. Fixing frame; 13. Drying cylinder; 15. Secondary deaerator; 16. Sealing cover; 17. Conveying pump; 18. Discharge pipe; 19. Connector. Detailed Implementation
[0016] To facilitate understanding of this invention, a more complete description will be provided below with reference to the accompanying drawings. This invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this invention more thorough and complete.
[0017] Example 1 like Figures 1 to 6The electrolytic hydrogen production high-purity hydrogen purification device of this utility model includes a base plate 1, a support 2, a primary deoxygenation cylinder 3, and an inlet pipe 4. The primary deoxygenation cylinder 3 is fixedly installed on the support 2 and has a chamber. The output end of the inlet pipe 4 is connected to the chamber of the primary deoxygenation cylinder 3, and a valve is installed on the inlet pipe 4. It also includes a catalyst mechanism, a moving mechanism, a conveying mechanism, a drying mechanism, and a secondary deoxygenation mechanism. The catalyst mechanism is installed in the chamber of the primary deoxygenation cylinder 3 and has a catalyst on it. The moving mechanism is used to move the catalyst mechanism, and the conveying mechanism is used for input... The end of the conveying mechanism is connected to the lower part of the primary deoxygenation cylinder 3 chamber. The output end of the conveying mechanism is connected to the drying mechanism, which has a drying function. The output end of the drying mechanism is connected to the secondary deoxygenation mechanism, which has a deoxygenation function. An oxygen concentration monitor is installed on the primary deoxygenation cylinder 3 chamber to detect the oxygen concentration in the chamber. When purifying hydrogen, the hydrogen to be purified is first conveyed to the chamber of the primary deoxygenation cylinder 3 through the inlet pipe 4. Then, the valve on the inlet pipe 4 is closed. The hydrogen then conveyed to the chamber of the primary deoxygenation cylinder 3 chamber reacts with the oxygen in the chamber of the primary deoxygenation cylinder 3 chamber. In the indoor catalyst contact process, under the action of the catalyst, the small amount of oxygen mixed in with the hydrogen reacts with the hydrogen to produce water. Simultaneously, a moving mechanism moves the catalyst unit within the primary deaerator chamber 3, allowing it to contact the gas at different locations within chamber 3. This promotes the reaction of oxygen in the hydrogen at different locations, achieving uniform oxygen removal. Once the oxygen concentration in chamber 3 of the primary deaerator chamber has decreased to a specified level, the conveying mechanism is opened, and the valve on the inlet pipe 4 is opened, allowing the next batch of hydrogen to be purified to enter the primary deaerator chamber through inlet pipe 4. In the deoxygenation cylinder 3, the hydrogen gas that has undergone the impurity removal reaction in the primary deoxygenation cylinder 3 is simultaneously conveyed into the drying mechanism. The drying mechanism then dries the moisture contained in the hydrogen gas. After drying, the hydrogen gas re-enters the secondary deoxygenation mechanism to remove residual oxygen before being discharged into a dedicated external collection tank for hydrogen collection. During the impurity removal reaction of hydrogen gas in the primary deoxygenation cylinder 3 chamber, the catalyst mechanism can be moved, allowing the catalyst mechanism to come into contact with the gas in all parts of the primary deoxygenation cylinder 3 chamber, resulting in better impurity removal effect for hydrogen gas. It is convenient to use and has high reliability and practicality.
[0018] like Figure 1 , Figure 3 and Figure 4The catalyst mechanism includes a ring 5 and a carrier 6. A groove is provided within the primary deoxygenation cylinder 3 chamber, and the ring 5 is slidably installed in the groove within the chamber. The carrier 6 is fixedly installed on the ring 5, and a catalyst is placed on the carrier 6. The ring 5 is mounted on a moving mechanism for moving the ring 5. The carrier 6 can be made of aluminum alloy or activated carbon; the catalyst can be made of palladium or platinum. When the hydrogen to be purified enters the primary deoxygenation cylinder 3 chamber, the hydrogen comes into contact with the catalyst on the carrier 6, causing the oxygen mixed in the hydrogen to react with the hydrogen under the action of the catalyst to produce water, thus achieving the purpose of removing oxygen from the hydrogen; this facilitates the removal of impurities from the hydrogen.
[0019] like Figure 3 The moving mechanism includes a hydraulic cylinder 7 and a push rod 8. The hydraulic cylinder 7 is fixedly installed on the base plate 1. The power output end of the hydraulic cylinder 7 is provided with a push rod 8. The push rod 8 is slidably installed on the primary deoxygenation cylinder 3. The upper end of the primary deoxygenation cylinder 3 is in contact with the lower end of the ring 5. When the hydraulic cylinder 7 is opened, the push rod 8 drives the ring 5 to rise and fall, thereby adjusting the height of the carrier 6. This allows the catalyst on the carrier 6 to come into contact with the gas at different heights in the chamber of the primary deoxygenation cylinder 3, facilitating the removal of oxygen from hydrogen.
[0020] like Figure 1 , Figure 4 , Figure 5 and Figure 6 The conveying mechanism includes a conveying pipe 9, multiple cooling plates 10, and a drain pipe 11. The input end of the conveying pipe 9 is connected to the lower part of the primary deaerator chamber 3. A valve is provided on the left side of the conveying pipe 9. The lower part of the conveying pipe 9 is U-shaped. The output end of the conveying pipe 9 is connected to the drying mechanism. The cooling ends of the multiple cooling plates 10 are embedded in the side wall of the conveying pipe 9, and the heat dissipation ends of the multiple cooling plates 10 are located on the outside of the conveying pipe 9. The output end of the conveying pipe 9 is connected to the drying mechanism. The drain pipe 11 is installed at the U-shaped position at the lower part of the conveying pipe 9. A valve is provided on the drain pipe 11. A valve is installed; after hydrogen enters the delivery pipe 9 through the primary deoxygenation cylinder 3, multiple cooling plates 10 are opened to lower the temperature in the delivery pipe 9, causing the water vapor in the hydrogen to condense into liquid. The liquid water slides down to the lower part of the delivery pipe 9 under the action of gravity. Then, the hydrogen enters the drying mechanism to remove the remaining water vapor. When it is necessary to drain the liquid water at the bottom of the delivery pipe 9, the valve on the drain pipe 11 is opened to allow the water at the bottom of the delivery pipe 9 to be discharged through the drain pipe 11, which facilitates the removal of water vapor from the hydrogen.
[0021] The drying mechanism includes a fixed frame 12 and a drying cylinder 13. The drying cylinder 13 is fixedly installed on the fixed frame 12. A drying chamber is provided on the drying cylinder 13, and drying packing is provided inside the drying chamber of the drying cylinder 13. The output end of the conveying pipe 9 is connected to the upper part of the drying chamber of the drying cylinder 13. The hydrogen gas that has been condensed and dehydrated enters the drying cylinder 13 through the conveying pipe 9. Then the hydrogen gas passes through the drying packing, and the drying packing dries the residual moisture in the hydrogen gas, which facilitates the removal of water from the hydrogen gas. The drying packing can be silica gel packing.
[0022] The secondary deoxygenation mechanism includes a secondary deoxygenation cylinder 15, a sealing cover 16, a transfer pump 17, a discharge pipe 18, and a connector 19. The secondary deoxygenation cylinder 15 is fixedly mounted on a mounting frame 12. A cavity is provided inside the secondary deoxygenation cylinder 15, and a selective permeable membrane is installed in the middle of the cavity. The selective permeable membrane has the function of removing oxygen. The sealing cover 16 is bolted to the upper end of the cavity of the secondary deoxygenation cylinder 15. The input end of the transfer pump 17 is connected to the drying chamber of the drying cylinder 13, and the output end of the transfer pump 17 is located inside the cavity of the secondary deoxygenation cylinder 15, below the selective permeable membrane. The input end of the discharge pipe 18 is connected to the upper part of the cavity of the secondary deoxygenation cylinder 15. The inlet of the discharge pipe 18 is located above the selectively permeable membrane. A valve is installed on the discharge pipe 18, and a connector 19 is installed at the outlet of the discharge pipe 18. The selectively permeable membrane can be a palladium-silver alloy membrane or a polyimide polymer membrane. It has the function of allowing hydrogen to pass through while retaining oxygen. The hydrogen collection device is connected to the connector 19, and the delivery pump 17 is turned on so that the dried hydrogen enters the lower part of the cavity of the secondary deoxygenation cylinder 15. Then, the hydrogen passes through the selectively permeable membrane to remove the residual oxygen in the hydrogen. The purity of the hydrogen is improved through secondary deoxygenation. Then, the hydrogen is discharged to the external collection device through the discharge pipe 18 and the connector 19, which improves the impurity removal effect of the hydrogen.
[0023] Example 2 Based on Example 1, a temperature sensor is installed on the primary deaerator cylinder 3, with the sensing section of the temperature sensor located inside the chamber of the primary deaerator cylinder 3. This arrangement facilitates the monitoring of the temperature inside the chamber of the primary deaerator cylinder 3. Furthermore, multiple semiconductor cooling plates can be installed on the primary deaerator cylinder 3, with the cooling end of the cooling plate located inside the chamber of the primary deaerator cylinder 3 and the heat dissipation end located outside the primary deaerator cylinder 3. When the temperature inside the chamber of the primary deaerator cylinder 3 is too high, the semiconductor cooling plate is opened to lower the temperature inside the chamber of the primary deaerator cylinder 3.
[0024] It should be added that: all electrical equipment in this case is connected to an external controller, which coordinates and controls the operation of each piece of electrical equipment.
[0025] The carrier 6, cooling plate 10, delivery pump 17, and connector 19 of the electrolytic hydrogen production high-purity hydrogen purification device of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A high-purity hydrogen purification device for electrolytic hydrogen production, comprising a base plate (1), a support (2), a primary deoxygenation cylinder (3), and an inlet pipe (4), wherein the primary deoxygenation cylinder (3) is fixedly mounted on the support (2), a chamber is provided inside the primary deoxygenation cylinder (3), the output end of the inlet pipe (4) is connected to the chamber of the primary deoxygenation cylinder (3), and a valve is provided on the inlet pipe (4); characterized in that, It also includes a catalyst mechanism, a moving mechanism, a conveying mechanism, a drying mechanism, and a secondary deoxygenation mechanism. The catalyst mechanism is installed in the chamber of the primary deoxygenation cylinder (3). The catalyst mechanism is equipped with a catalyst. The moving mechanism is used to move the catalyst mechanism. The input end of the conveying mechanism is connected to the lower part of the chamber of the primary deoxygenation cylinder (3). The output end of the conveying mechanism is connected to the drying mechanism. The drying mechanism has a drying function. The output end of the drying mechanism is connected to the secondary deoxygenation mechanism. The secondary deoxygenation mechanism has a deoxygenation function.
2. The electrolytic hydrogen production and high-purity hydrogen purification device as described in claim 1, characterized in that, The catalyst mechanism includes a ring (5) and a carrier (6). A groove is provided in the chamber of the primary deoxygenation cylinder (3). The ring (5) is slidably installed in the groove in the chamber of the primary deoxygenation cylinder (3). The carrier (6) is fixedly installed on the ring (5). The catalyst is provided on the carrier (6). The ring (5) is installed on a moving mechanism. The moving mechanism is used to move the ring (5).
3. The electrolytic hydrogen production and high-purity hydrogen purification device as described in claim 2, characterized in that, The moving mechanism includes a hydraulic cylinder (7) and a push rod (8). The hydraulic cylinder (7) is fixedly installed on the base plate (1). The power output end of the hydraulic cylinder (7) is provided with a push rod (8). The push rod (8) is slidably installed on the primary deaerator (3). The upper end of the primary deaerator (3) is in contact with the lower end of the ring (5).
4. The electrolytic hydrogen production and high-purity hydrogen purification device as described in claim 2, characterized in that, The conveying mechanism includes a conveying pipe (9), multiple cooling plates (10) and a drain pipe (11). The input end of the conveying pipe (9) is connected to the lower part of the primary deaerator (3) chamber. A valve is provided on the left side of the conveying pipe (9). The lower part of the conveying pipe (9) is U-shaped. The output end of the conveying pipe (9) is connected to the drying mechanism. The cooling ends of the multiple cooling plates (10) are embedded in the side wall of the conveying pipe (9). The heat dissipation ends of the multiple cooling plates (10) are located on the outside of the conveying pipe (9). The output end of the conveying pipe (9) is connected to the drying mechanism. The drain pipe (11) is installed in the U-shaped position at the lower part of the conveying pipe (9). A valve is provided on the drain pipe (11).
5. The electrolytic hydrogen production and high-purity hydrogen purification device as described in claim 4, characterized in that, The drying mechanism includes a fixed frame (12) and a drying cylinder (13). The drying cylinder (13) is fixedly installed on the fixed frame (12). A drying chamber is provided on the drying cylinder (13). Drying filler is provided in the drying chamber of the drying cylinder (13). The output end of the conveying pipe (9) is connected to the upper part of the drying chamber of the drying cylinder (13).
6. The electrolytic hydrogen production and high-purity hydrogen purification device as described in claim 5, characterized in that, The secondary deoxygenation mechanism includes a secondary deoxygenation cylinder (15), a sealing cover (16), a delivery pump (17), a discharge pipe (18), and a connector (19). The secondary deoxygenation cylinder (15) is fixedly installed on a fixed frame (12). A cavity is provided inside the secondary deoxygenation cylinder (15). A selective permeable membrane is provided in the middle of the cavity of the secondary deoxygenation cylinder (15). The selective permeable membrane has the function of removing oxygen. The sealing cover (16) is installed on the upper end of the cavity of the secondary deoxygenation cylinder (15) by bolts. The input end of the delivery pump (17) is connected to the drying chamber of the drying cylinder (13). The output end of the delivery pump (17) is located inside the cavity of the secondary deoxygenation cylinder (15). The output end of the delivery pump (17) is located below the selective permeable membrane. The input end of the discharge pipe (18) is connected to the upper part of the cavity of the secondary deoxygenation cylinder (15). The input end of the discharge pipe (18) is located above the selective permeable membrane. A valve is provided on the discharge pipe (18). A connector (19) is provided at the output end of the discharge pipe (18).
7. The electrolytic hydrogen production and high-purity hydrogen purification device as described in claim 1, characterized in that, A temperature sensor is installed on the primary deaerator cylinder (3), and the sensing section of the temperature sensor is located in the chamber of the primary deaerator cylinder (3).