Hydrogen-oxygen purification module of a hydrogen production system

Abstract

This application discloses a hydrogen-oxygen purification module for a hydrogen production system, relating to the field of hydrogen-oxygen purification technology. The module includes a housing with an outer sleeve installed inside. A hydrogen purification module is installed inside the housing. Crude oxygen and crude hydrogen are fed into the oxygen purification module and hydrogen purification module, respectively. A hydrogen removal catalyst removes hydrogen from the crude oxygen. The crude hydrogen, influenced by the delayed channel structure within the hydrogen purification module, then enters the reaction zone of the hydrogen purification module. The heat generated during the crude oxygen dehydrogenation catalytic reaction is conducted through a heat-conducting structure to the oxygen removal catalyst used for crude hydrogen, preheating it. Once the oxygen removal catalyst is fully preheated, the crude hydrogen reaches the reaction position and reacts with the preheated catalyst. This eliminates the need for an external heat source to preheat the oxygen removal catalyst, utilizing the heat generated during the crude oxygen dehydrogenation catalytic reaction to maintain the catalyst's activity and improve heat exchange efficiency.

Description

Technical Field

[0001] This application relates to the field of hydrogen and oxygen purification technology, and in particular to a hydrogen and oxygen purification module for a hydrogen production system. Background Technology

[0002] In the hydrogen production system, during alkaline water electrolysis, an alkaline electrolyte such as potassium hydroxide or sodium hydroxide is first added to the water to form an alkaline solution that enhances the water's conductivity. This alkaline solution is then injected into the electrolytic cell, which contains an anode and a cathode and is connected to a DC power supply. After energization, water molecules undergo electrochemical reactions at the electrodes: at the anode, water molecules lose electrons and undergo oxidation, decomposing to produce oxygen and hydrogen ions. Crude oxygen containing a small amount of water vapor and trace amounts of hydrogen is ultimately collected from the anode. At the cathode, water molecules gain electrons and undergo reduction, decomposing to produce hydrogen and hydroxide ions. Crude hydrogen containing a small amount of water vapor and trace amounts of oxygen is ultimately collected from the cathode. During purification, impurities in crude oxygen and crude hydrogen need to be treated separately. For example, crude oxygen contains trace amounts of hydrogen and crude hydrogen contains trace amounts of oxygen. Catalytic impurity removal is usually used. For crude oxygen, it is first passed into a reaction section filled with a hydrogen removal catalyst to remove the small amount of hydrogen in the crude oxygen. For crude hydrogen, it is passed into a reaction chamber filled with an oxygen removal catalyst to remove the trace amounts of oxygen. Therefore, when purifying crude hydrogen and crude oxygen, they need to be purified by a hydrogen-oxygen purification module.

[0003] Most existing purification modules first fill two reaction chambers with catalysts, and then deliver crude oxygen and crude hydrogen to the two reaction chambers respectively, so that they can react with the catalysts inside the reaction chambers for purification. However, when purifying crude hydrogen, it is necessary to preheat the crude hydrogen reaction chamber with an external heat source to achieve the purpose of rapid reaction between crude hydrogen and catalyst. This requires additional heat source preheating during purification, which can easily lead to extra energy consumption, increase purification production costs, and make it more likely to have incomplete reactions, which is not conducive to people's use. Utility Model Content

[0004] The purpose of this application is to address the problem in the prior art that, when purifying crude hydrogen, it is necessary to preheat the crude hydrogen reaction chamber with an external heat source to achieve rapid reaction between crude hydrogen and the catalyst. This requires additional heat source preheating during purification, which easily leads to extra energy consumption, increases purification production costs, and makes incomplete reaction more likely, which is not conducive to user use. This application provides a hydrogen-oxygen purification module for a hydrogen production system.

[0005] To achieve the above objectives, this application specifically adopts the following technical solution: A hydrogen purification module for a hydrogen production system includes a housing, an outer sleeve installed inside the housing, and a hydrogen purification module installed inside the housing. The hydrogen purification module is located inside the outer sleeve. An oxygen purification module is disposed between the housing and the outer sleeve. A heat-conducting structure is disposed between the hydrogen purification module and the oxygen purification module. The interior of the hydrogen purification module is filled with an oxygen removal catalyst, and the interior of the oxygen purification module is filled with a hydrogen removal catalyst. A delay channel is provided inside the hydrogen purification module.

[0006] By adopting the above technical solution, crude oxygen and crude hydrogen are fed into the oxygen purification module and hydrogen purification module, respectively. The hydrogen in the crude oxygen is removed by the hydrogen removal catalyst, while the crude hydrogen, under the influence of the delayed channel structure in the hydrogen purification module, enters the reaction zone of the hydrogen purification module in the next step. The heat generated during the crude oxygen hydrogen removal catalytic reaction is conducted through the heat-conducting structure to the oxygen removal catalyst used for crude hydrogen, preheating it. When the oxygen removal catalyst is fully preheated, the crude hydrogen just reaches the reaction position and reacts with the preheated oxygen removal catalyst. This achieves the goal of maintaining the activity of the oxygen removal catalyst by utilizing the heat generated during the crude oxygen hydrogen removal catalytic reaction without adding an external heat source to preheat the oxygen removal catalyst, thereby improving the heat exchange efficiency.

[0007] Furthermore, the housing includes an outer shell mounted on the ground, with symmetrical coarse oxygen inlets fixedly connected to the bottom end of the outer shell and symmetrical pure oxygen exhaust ports fixedly connected to the top end of the outer shell.

[0008] By adopting the above technical solution, crude oxygen can be delivered to the oxygen purification module through the crude oxygen inlet, while pure oxygen can be discharged through the pure oxygen outlet.

[0009] Furthermore, the hydrogen purification module includes an inner sleeve fixedly connected inside the outer shell. An air inlet pipe is fixedly connected to the top of the outer shell, and a cross-shaped guide frame is fixedly connected to the bottom inner end of the air inlet pipe. Multiple annular baffles are fixedly connected inside the inner sleeve. A pure hydrogen exhaust port is fixedly connected to the bottom of the outer shell. The two ends of the inner sleeve are respectively connected to the air inlet pipe and the pure hydrogen exhaust port. The delay channel includes a spiral conveying pipe fixedly connected to the top of the air inlet pipe.

[0010] By adopting the above technical solution, multiple annular baffles are provided inside the inner sleeve, dividing the inner sleeve into multiple independent deoxygenation reaction chambers.

[0011] Furthermore, the oxygen purification module includes an oxygen channel formed between the outer shell and the outer sleeve, and a plurality of annular guide plates are fixedly connected between the outer shell and the outer sleeve. The oxygen channel is connected to a crude oxygen inlet and a pure oxygen outlet.

[0012] By adopting the above technical solution, an annular guide plate is installed inside the oxygen channel 1 to divide the oxygen channel 1 into multiple hydrogen removal reaction sections.

[0013] Furthermore, the heat-conducting structure includes a plurality of heat-conducting copper tubes fixedly connected to the outer wall of the inner sleeve. The heat-conducting copper tubes are evenly distributed along the axial and circumferential directions of the outer wall of the inner sleeve, and one end of the heat-conducting copper tube extends radially into the oxygen channel.

[0014] By adopting the above technical solution, the generated heat is conducted through a heat-conducting copper pipe to the deoxygenation catalyst inside the inner sleeve.

[0015] Furthermore, the housing also includes a second outer shell mounted on the ground. The top of the second outer shell is provided with a crude hydrogen inlet, and one side of the bottom of the second outer shell is provided with a hydrogen exhaust outlet. One side of the bottom of the second outer shell is provided with a crude oxygen inlet, and the top of the second outer shell is provided with a pure oxygen outlet.

[0016] By adopting the above technical solution, crude oxygen can enter the oxygen purification module through the crude oxygen inlet, and the purified pure oxygen can be discharged through the pure oxygen outlet. Crude hydrogen can be discharged into the hydrogen purification module through the crude hydrogen inlet, and the purified hydrogen can be discharged through the hydrogen exhaust outlet.

[0017] Furthermore, the hydrogen purification module also includes an inner sleeve fixedly connected inside the outer sleeve. The bottom end of the inner sleeve is connected to a spiral conveying pipe II. The inner sleeve serves as a delay channel. Multiple annular baffles are fixedly connected between the inner sleeve and the outer sleeve. Multiple flow guides are provided on the annular baffles. An oxygen deoxygenation reaction zone is formed between the outer sleeve, the annular baffles, and the inner sleeve. The end of the spiral conveying pipe II away from the inner sleeve is located within the oxygen deoxygenation reaction zone.

[0018] By adopting the above technical solution, crude hydrogen is transported to the inner sleeve through the crude hydrogen inlet. As it flows inside the inner sleeve and is spirally transported along the structure of the spiral conveying pipe II, it rises and enters the deoxygenation reaction zone.

[0019] Furthermore, the oxygen purification module also includes an oxygen channel two formed between the outer tube and the outer shell two. An oxygen buffer chamber is opened at the top of the outer shell two. Multiple pure oxygen inlets are opened at the bottom of the oxygen buffer chamber. The oxygen channel two is connected to the pure oxygen inlets. Multiple impellers are installed in the oxygen buffer chamber. The impellers are located above the pure oxygen inlets.

[0020] By adopting the above technical solution, the oxygen after the reaction can flow into the oxygen buffer chamber through the pure oxygen inlet for temporary storage, and the residual heat carried by the pure oxygen after the reaction can be used to preheat the inner sleeve.

[0021] Furthermore, the heat-conducting structure also includes multiple heat-conducting sheets fixedly connected between the outer sleeve and the inner sleeve, with one end of each heat-conducting sheet extending to the inner side of the oxygen channel two.

[0022] By adopting the above technical solution, heat is conducted through the heat-conducting sheet to the inner sleeve, thus preheating the inner sleeve.

[0023] In summary, this application includes at least one of the following beneficial effects; 1. In this application, crude oxygen and crude hydrogen are fed into an oxygen purification module and a hydrogen purification module, respectively. Hydrogen is removed from the crude oxygen using a hydrogen removal catalyst. The crude hydrogen, influenced by the delayed channel structure within the hydrogen purification module, enters the reaction zone of the hydrogen purification module in the next step. The heat generated during the crude oxygen hydrogen removal catalytic reaction is conducted through a heat-conducting structure to the oxygen removal catalyst used for crude hydrogen, preheating it. When the oxygen removal catalyst is fully preheated, the crude hydrogen reaches the reaction position and reacts with the preheated oxygen removal catalyst. This achieves the goal of maintaining the activity of the oxygen removal catalyst without the need for an external heat source to preheat it, improving heat exchange efficiency by utilizing the heat generated during the crude oxygen hydrogen removal catalytic reaction, and also solving the problem of incomplete reaction, further purifying the crude hydrogen.

[0024] 2. In this application, the shell, the hydrogen purification module and the outer sleeve form a concentric double sleeve structure, which makes the hydrogen purification and oxygen purification completely independent and separate, and do not interfere with each other during the reaction. This avoids cross-contamination of crude hydrogen, crude oxygen and corresponding products, ensures that the purification process is uninterrupted, and improves the purification quality of hydrogen and oxygen. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 It is in this application Figure 1 A partial structural diagram; Figure 3 It is in this application Figure 1 A sectional view; Figure 4 This is a schematic diagram of the cross-shaped air deflector in this application; Figure 5 This is another structural diagram of this application; Figure 6 It is in this application Figure 5 Internal structure diagram; Figure 7 It is in this application Figure 5 A schematic diagram of a partial structure; Figure 8 It is in this application Figure 5 A partial sectional view.

[0026] Explanation of reference numerals in the attached figures: 1. Shell; 2. Hydrogen purification module; 3. Outer sleeve; 4. Heat-conducting structure; 5. Oxygen purification module; 11. Outer shell one; 12. Crude oxygen inlet; 13. Pure oxygen exhaust port; 14. Outer shell two; 15. Crude hydrogen inlet; 16. Hydrogen exhaust port; 21. Spiral conveying pipe one; 22. Inlet pipe; 23. Inner sleeve; 24. Annular baffle; 25. Pure hydrogen exhaust port; 221. Cross-shaped flow guide; 26. Inner sleeve; 27. Spiral conveying pipe two; 28. Annular baffle; 29. ​​Flow guide port; 41. Heat-conducting copper pipe; 42. Heat-conducting plate; 51. Oxygen channel one; 52. Annular flow guide plate; 53. Oxygen channel two; 54. Oxygen buffer chamber; 55. Pure oxygen inlet; 56. Fan wheel. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0028] This application discloses a hydrogen and oxygen purification module for a hydrogen production system.

[0029] Example 1, refer to Figure 1 and Figure 2 A hydrogen purification module for a hydrogen production system includes a housing 1, an outer sleeve 3 installed inside the housing 1, and a hydrogen purification module 2 installed inside the housing 1. The hydrogen purification module 2 is located inside the outer sleeve 3. An oxygen purification module 5 is disposed between the housing 1 and the outer sleeve 3. A heat-conducting structure 4 is disposed between the hydrogen purification module 2 and the oxygen purification module 5. The hydrogen purification module 2 is filled with an oxygen removal catalyst, and the oxygen purification module 5 is filled with a hydrogen removal catalyst. A delay channel is provided inside the hydrogen purification module 2.

[0030] First, crude oxygen and crude hydrogen are fed into oxygen purification module 5 and hydrogen purification module 2, respectively. Hydrogen is removed from the crude oxygen using a hydrogen removal catalyst. The crude hydrogen, influenced by the delayed channel structure within hydrogen purification module 2, enters the reaction zone of hydrogen purification module 2 later. During the hydrogen removal process of the crude oxygen, the heat generated during the catalytic reaction is conducted through the heat-conducting structure 4, preheating the hydrogen removal catalyst. This allows the crude oxygen to fully react with the hydrogen removal catalyst in oxygen purification module 5, releasing heat and preheating the hydrogen removal catalyst. At this point, the crude hydrogen reaches the reaction position. The oxygen in crude hydrogen is removed by a deoxygenation catalyst, thus eliminating the need for an external heat source to preheat the catalyst. The heat generated during the crude oxygen dehydrogenation catalytic reaction maintains the activity of the deoxygenation catalyst, improving heat exchange efficiency. Furthermore, the concentric double-sleeve structure formed between the shell 1, the hydrogen purification module 2, and the outer sleeve 3 ensures that hydrogen purification and oxygen purification are completely independent and do not interfere with each other during the reaction. This avoids cross-contamination of crude hydrogen, crude oxygen, and their corresponding products, ensuring that the purification process is interference-free and improving the purification quality of hydrogen and oxygen. At the same time, it facilitates the heat conduction and delivery of the heat-conducting structure 4.

[0031] Reference Figures 1 to 4 The housing 1 includes an outer shell 11 mounted on the ground. Symmetrical coarse oxygen inlets 12 are fixedly connected to the bottom of the outer shell 11, and symmetrical pure oxygen exhaust ports 13 are fixedly connected to the top of the outer shell 11. The hydrogen purification module 2 includes an inner sleeve 23 fixedly connected inside the outer shell 11. An inlet pipe 22 is fixedly connected to the top of the outer shell 11. A cross-shaped guide frame 221 is fixedly connected to the bottom of the inlet pipe 22. Multiple annular baffles 24 are fixedly connected inside the inner sleeve 23. A pure hydrogen exhaust port 25 is fixedly connected to the bottom of the outer shell 11. The two ends of the inner sleeve 23 are respectively connected to the inlet pipe 22 and... The pure hydrogen exhaust port 25 is connected, and the delay channel includes a spiral conveying pipe 21 fixedly connected to the top of the intake pipe 22. The oxygen purification module 5 includes an oxygen channel 51 formed between the outer shell 11 and the outer sleeve 3. Multiple annular guide plates 52 are fixedly connected between the outer shell 11 and the outer sleeve 3. The oxygen channel 51 is connected to the crude oxygen intake port 12 and the pure oxygen exhaust port 13. The heat conduction structure 4 includes multiple heat conduction copper pipes 41 fixedly connected to the outer wall of the inner sleeve 23. The heat conduction copper pipes 41 are evenly distributed along the axial and circumferential directions of the outer wall of the inner sleeve 23, and one end of the heat conduction copper pipe 41 extends radially into the oxygen channel 51.

[0032] A concentric double-sleeve structure is formed by the outer shell 11, the outer sleeve 3, and the inner sleeve 23. An oxygen channel 51 is formed between the outer shell 11 and the outer sleeve 3. The electrolyzed crude oxygen is transported into the oxygen channel 51 through the crude oxygen inlet 12 and reacts with the dehydrogenation catalyst filled inside the oxygen channel 51 to remove hydrogen. The purified oxygen can be discharged through the pure oxygen exhaust port 13. When the crude oxygen enters the crude oxygen inlet 12, the crude hydrogen simultaneously enters the spiral conveying pipe 21. The crude oxygen is transported to the intake pipe 22 and the inner sleeve 23 through the spiral conveyor pipe 21. When the crude oxygen is dehydrogenated, heat is generated. The heat generated is conducted through the heat-conducting copper pipe 41 to the deoxygenation catalyst inside the inner sleeve 23, thereby preheating the deoxygenation catalyst. After the dehydrogenation catalyst is preheated, the crude hydrogen reaches the reaction position inside the inner sleeve 23, so that the crude hydrogen comes into contact with the deoxygenation catalyst and reacts, thus purifying the crude hydrogen. The purified hydrogen can be discharged through the pure hydrogen exhaust port 25.

[0033] The inflow rate of hydrogen is controlled by external pressure. The time it takes for the hydrogen to pass through the spiral tube is determined by the total length of the spiral tube and the pressure. The inner sleeve 23 is equipped with multiple annular baffles 24, which divide the inner sleeve 23 into multiple independent deoxygenation reaction chambers. Each deoxygenation reaction chamber is filled with a deoxygenation catalyst, and adjacent deoxygenation reaction chambers are connected by guide holes on the annular baffles 24. The guide holes are evenly distributed along the circumference. The end of the inlet pipe 22 is equipped with a cross-shaped guide frame 221, which is composed of multiple inclined guide blades, which can guide the crude hydrogen to flow spirally downward along the inner wall of the inner sleeve 23.

[0034] An annular guide plate 52 is provided inside the oxygen channel 51, which divides the oxygen channel 51 into multiple hydrogen removal reaction sections. Each hydrogen removal reaction section is filled with a hydrogen removal catalyst. A spiral guide groove is opened on the annular guide plate 52 to guide the crude oxygen to flow along the spiral path.

[0035] Example 2, refer to Figures 5 to 8A hydrogen purification module for a hydrogen production system includes a housing 1 and an outer shell 2 14 mounted on the ground. The top of the outer shell 2 14 has a crude hydrogen inlet 15, and one side of the bottom of the outer shell 2 14 has a hydrogen exhaust port 16. One side of the bottom of the outer shell 2 14 has a crude oxygen inlet, and the top of the outer shell 2 14 has a pure oxygen outlet. The hydrogen purification module 2 also includes an inner sleeve 26 fixedly connected inside the outer sleeve 3. The bottom end of the inner sleeve 26 is connected to a spiral conveying pipe 27. The inner sleeve 26 serves as a delay channel. Multiple annular baffles 28 are fixedly connected between the inner sleeve 26 and the outer sleeve 3. Multiple guide ports 29 are opened on the annular baffles 28. The outer sleeve 3 and the annular baffles 28... An oxygen deoxygenation reaction zone is formed between the outer sleeve 26 and the inner sleeve 27. The end of the spiral conveying pipe 27 away from the inner sleeve 26 is located in the oxygen deoxygenation reaction zone. The oxygen purification module 5 also includes an oxygen channel 53 formed between the outer sleeve 3 and the outer shell 14. An oxygen buffer chamber 54 is opened at the top of the outer shell 14. Multiple pure oxygen inlets 55 are opened at the bottom of the oxygen buffer chamber 54. The oxygen channel 53 is connected to the pure oxygen inlets 55. Multiple impellers 56 are installed in the oxygen buffer chamber 54. The impellers 56 are located above the pure oxygen inlets 55. The heat conduction structure 4 also includes multiple heat conduction plates 42 fixedly connected between the outer sleeve 3 and the inner sleeve 26. One end of the heat conduction plate 42 extends to the inside of the oxygen channel 53.

[0036] Crude oxygen enters oxygen channel 2 53 through the crude oxygen inlet and reacts with the dehydrogenation catalyst filled inside oxygen channel 2 53, thus purifying the crude oxygen. During the reaction between the crude oxygen and the dehydrogenation catalyst, heat is generated. This heat is conducted through the heat-conducting plate 42 to the inner sleeve 26, preheating both the inner sleeve 26 and the dehydrogenation reaction zone. The reacted oxygen flows into the oxygen buffer chamber 54 through the pure oxygen inlet 55 for temporary storage. The residual heat carried by the reacted pure oxygen preheats the inner sleeve 26, thereby preheating the hydrogen at the crude hydrogen inlet. Afterwards, the oxygen inside the annular partition 24... It can be discharged from the pure oxygen outlet. When the crude oxygen passes through the crude oxygen inlet, the crude hydrogen can be simultaneously transported from the crude hydrogen inlet 15 to the inner sleeve 26. As it flows inside the inner sleeve 26, the crude hydrogen can be gradually preheated and spirally transported along the structure of the spiral conveying pipe 27, and then rise into the deoxygenation reaction zone. The time when the crude hydrogen enters the deoxygenation reaction zone is later than the time when the crude oxygen comes into contact with the deoxygenation catalyst. When the heat-conducting plate 42 has completely preheated the deoxygenation reaction zone, the crude hydrogen just arrives at the deoxygenation reaction zone and reacts with the deoxygenation catalyst, thus deoxygenating the crude hydrogen. The purified hydrogen can flow down through the guide port 29 and be discharged through the hydrogen exhaust port 16.

[0037] Multiple impellers 56 are installed inside the oxygen buffer chamber 54. The impellers 56 are driven by the wind force of the pure oxygen inlet 55, causing them to rotate inside the oxygen buffer chamber 54. This agitates the oxygen distribution inside the oxygen buffer chamber 54, resulting in more uniform heating of the components.

[0038] Working principle: First, crude oxygen and crude hydrogen are fed into oxygen purification module 5 and hydrogen purification module 2 respectively. Hydrogen removal catalysts remove hydrogen from the crude oxygen. The crude hydrogen, influenced by the delayed channel structure within hydrogen purification module 2, enters the reaction zone of hydrogen purification module 2 next. During the dehydrogenation of crude oxygen, the heat generated during the dehydrogenation catalytic reaction is conducted through the heat-conducting structure 4, preheating the dehydrogenation catalyst of the crude hydrogen. This allows the crude oxygen to fully react with the dehydrogenation catalyst in oxygen purification module 5, releasing heat and preheating the dehydrogenation catalyst of the crude hydrogen. At this point, the crude hydrogen just reaches the reaction zone. The oxygen in the crude hydrogen is removed by a deoxygenation catalyst, eliminating the need for an external heat source to preheat the catalyst. The heat generated during the crude oxygen dehydrogenation catalytic reaction maintains the activity of the deoxygenation catalyst, improving heat exchange efficiency. Furthermore, the concentric double-sleeve structure formed between the shell 1, the hydrogen purification module 2, and the outer sleeve 3 ensures that hydrogen purification and oxygen purification are completely independent and do not interfere with each other during the reaction. This avoids cross-contamination of crude hydrogen, crude oxygen, and corresponding products, ensuring that the purification process is interference-free and improving the purification quality of hydrogen and oxygen. At the same time, it facilitates the heat conduction and delivery of the heat-conducting structure 4.

Claims

1. A hydrogen-oxygen purification module for a hydrogen production system, comprising a housing (1), characterized in that: The inner side of the housing (1) is fitted with an outer tube (3), and a hydrogen purification module (2) is installed inside the housing (1). The hydrogen purification module (2) is located inside the outer tube (3). An oxygen purification module (5) is provided between the housing (1) and the outer tube (3). A heat-conducting structure (4) is provided between the hydrogen purification module (2) and the oxygen purification module (5). The hydrogen purification module (2) is filled with an oxygen removal catalyst, and the oxygen purification module (5) is filled with a hydrogen removal catalyst. A delay channel is provided inside the hydrogen purification module (2).

2. The hydrogen and oxygen purification module of a hydrogen production system according to claim 1, characterized in that: The housing (1) includes an outer shell (11) mounted on the ground. The bottom of the outer shell (11) is fixedly connected to symmetrical coarse oxygen inlets (12), and the top of the outer shell (11) is fixedly connected to symmetrical pure oxygen exhaust outlets (13).

3. The hydrogen and oxygen purification module of a hydrogen production system according to claim 2, characterized in that: The hydrogen purification module (2) includes an inner sleeve (23) fixedly connected inside the outer shell (11). An air inlet pipe (22) is fixedly connected to the top of the outer shell (11). A cross-shaped guide frame (221) is fixedly connected to the bottom of the air inlet pipe (22). Multiple annular baffles (24) are fixedly connected inside the inner sleeve (23). A pure hydrogen exhaust port (25) is fixedly connected to the bottom of the outer shell (11). The two ends of the inner sleeve (23) are respectively connected to the air inlet pipe (22) and the pure hydrogen exhaust port (25). The delay channel includes a spiral conveying pipe (21) fixedly connected to the top of the air inlet pipe (22).

4. The hydrogen and oxygen purification module of a hydrogen production system according to claim 2, characterized in that: The oxygen purification module (5) includes an oxygen channel (51) formed between the outer shell (11) and the outer tube (3). Multiple annular guide plates (52) are fixedly connected between the outer shell (11) and the outer tube (3). The oxygen channel (51) is connected to the crude oxygen inlet (12) and the pure oxygen exhaust port (13).

5. The hydrogen and oxygen purification module of a hydrogen production system according to claim 3, characterized in that: The heat-conducting structure (4) includes multiple heat-conducting copper tubes (41) fixedly connected to the outer wall of the inner sleeve (23). The heat-conducting copper tubes (41) are evenly distributed along the axial and circumferential directions of the outer wall of the inner sleeve (23), and one end of the heat-conducting copper tube (41) extends radially into the oxygen channel (51).

6. The hydrogen and oxygen purification module of a hydrogen production system according to claim 1, characterized in that: The housing (1) also includes a second outer shell (14) mounted on the ground. The top of the second outer shell (14) is provided with a crude hydrogen inlet (15), and the bottom side of the second outer shell (14) is provided with a hydrogen exhaust port (16). The bottom side of the second outer shell (14) is provided with a crude oxygen inlet, and the top of the second outer shell (14) is provided with a pure oxygen outlet.

7. The hydrogen and oxygen purification module of a hydrogen production system according to claim 1, characterized in that: The hydrogen purification module (2) also includes an inner sleeve (26) fixedly connected inside the outer sleeve (3). The bottom end of the inner sleeve (26) is connected to a spiral conveying pipe (27). The inner sleeve (26) serves as a delay channel. Multiple annular baffles (28) are fixedly connected between the inner sleeve (26) and the outer sleeve (3). Multiple guide ports (29) are opened on the annular baffles (28). An oxygen removal reaction zone is formed between the outer sleeve (3), the annular baffles (28), and the inner sleeve (26). The end of the spiral conveying pipe (27) away from the inner sleeve (26) is located in the oxygen removal reaction zone.

8. The hydrogen and oxygen purification module of a hydrogen production system according to claim 6, characterized in that: The oxygen purification module (5) also includes an oxygen channel two (53) formed between the outer tube (3) and the outer shell two (14). An oxygen buffer chamber (54) is opened at the top of the outer shell two (14). Multiple pure oxygen inlets (55) are opened at the bottom of the oxygen buffer chamber (54). The oxygen channel two (53) is connected to the pure oxygen inlets (55). Multiple impellers (56) are installed in the oxygen buffer chamber (54). The impellers (56) are located above the pure oxygen inlets (55).

9. The hydrogen and oxygen purification module of a hydrogen production system according to claim 8, characterized in that: The heat-conducting structure (4) also includes a plurality of heat-conducting plates (42) fixedly connected between the outer sleeve (3) and the inner sleeve (26), one end of the heat-conducting plate (42) extending to the inside of the oxygen channel (53).

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