Air-cooled CO preferential oxidation reaction chamber

Abstract

The utility model relates to the field of CO removal devices, in particular to an air-cooled CO preferential oxidation reaction chamber. Comprising a shell, a fan set, a gas mixing unit and a reaction bin, the reaction bin is fixedly arranged in the shell, the gas mixing unit is fixedly arranged on the outer surface of the shell and communicated with the reaction bin, the fan set is detachably arranged on the shell, a tail gas opening is formed in the shell, and the tail gas opening is communicated with the reaction bin. And the tail gas port is communicated with the reaction bin. Therefore, according to the scheme, the gas mixing unit is arranged, the hydrogen and air mixing effect is enhanced at the position where hydrogen enters the catalyst, the reaction efficiency of the catalyst and CO is guaranteed, then the reaction efficiency of CO is improved, meanwhile, due to the fact that the fan set is arranged, the fan set can rapidly dissipate heat generated by reaction, and the reaction efficiency is prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the field of CO removal devices, and in particular to an air-cooled CO preferential oxidation reaction chamber. Background Technology

[0002] In the methanol reforming process for hydrogen production, hydrogen often contains a certain amount of carbon monoxide (CO). If hydrogen containing CO is directly introduced into the fuel cell stack, the carbon monoxide will severely damage the electrode materials, thus affecting the stack's performance and lifespan. Therefore, before hydrogen enters the stack, the carbon monoxide must be effectively filtered and removed. To achieve this, a catalyst called CO-preferential oxidation is typically used for impurity removal.

[0003] However, the preferential oxidation of CO requires oxygen from the air to support the reaction. Currently, a common method is to introduce hydrogen gas into the reaction chamber and create pores in the chamber walls to allow air to enter and mix with the hydrogen. However, due to the relatively high concentration of hydrogen, the mixing effect between air and hydrogen is not ideal. This insufficient mixing prevents the catalyst from fully exerting its function, with only a portion participating in the reaction, thus significantly reducing the effectiveness of carbon monoxide removal.

[0004] To address this issue, researchers and engineers are exploring various methods to improve the mixing of air and hydrogen. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an air-cooled CO preferential oxidation reaction chamber to solve the problem of poor CO removal effect.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A wind-cooled CO preferential oxidation reaction chamber includes a shell, a fan assembly, a gas mixing unit and a reaction chamber. The reaction chamber is fixedly disposed inside the shell, the gas mixing unit is fixedly disposed on the outer surface of the shell and is connected to the reaction chamber, the fan assembly is detachably disposed on the shell, and the shell is provided with an exhaust port, which is connected to the reaction chamber.

[0007] Furthermore, the gas mixing unit includes a connecting pipe, a hydrogen interface, an air interface, a gas duct, and a mixing plate. The gas duct is connected to the reaction chamber through the connecting pipe. The mixing plate is fixedly disposed inside the gas duct. The hydrogen interface and the air interface are both connected to the gas duct. The mixing plate has a spiral plate structure.

[0008] Furthermore, multiple mixing plates are provided, and the multiple mixing plates are arranged along the length direction of the air passage.

[0009] Furthermore, the fan assembly includes an intake fan and an exhaust fan, which are detachably mounted on both sides of the housing.

[0010] Furthermore, the reaction chamber includes an upper sealing plate, a lower sealing plate, an inner wall, and an outer wall. The outer wall is fitted over the outer side of the inner wall. The upper sealing plate is positioned at the upper end of the integral formed by the inner wall and the outer wall. The lower sealing plate is positioned at the lower end of the integral formed by the inner wall and the outer wall. Multiple partitions are evenly distributed between the inner wall and the outer wall. Gaps are left between the partitions and the upper and lower sealing plates. The gas mixing unit communicates with the upper part of the reaction chamber through the gap. The exhaust port communicates with the lower part of the reaction chamber through the gap.

[0011] Furthermore, fins are fixedly provided on the inner side of the inner wall.

[0012] Furthermore, the outer wall is provided with a plurality of thermocouple monitoring ports, which extend through the housing to the outside of the housing.

[0013] This invention provides an air-cooled CO preferential oxidation reaction chamber, comprising a shell, a fan assembly, a gas mixing unit, and a reaction chamber. The reaction chamber is fixedly disposed inside the shell, and the gas mixing unit is fixedly disposed on the outer surface of the shell and communicates with the reaction chamber. The fan assembly is detachably disposed on the shell, and the shell has an exhaust port that communicates with the reaction chamber. Thus, by incorporating the gas mixing unit, this design enhances the mixing effect of hydrogen and air before hydrogen enters the catalyst, ensuring the reaction efficiency of the catalyst and CO, thereby increasing the CO reaction efficiency. Simultaneously, the fan assembly rapidly dissipates the heat generated by the reaction, preventing it from affecting the reaction efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a wind-cooled CO preferential oxidation reaction chamber according to the present invention;

[0015] Figure 2 This is a schematic diagram of the gas mixing unit structure of a wind-cooled CO preferential oxidation reaction chamber according to the present invention;

[0016] Figure 3 This is a schematic diagram of the reaction chamber structure of a wind-cooled CO preferential oxidation reaction chamber according to the present invention.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Shell, 2. Suction fan, 3. Exhaust fan, 4. Gas mixing unit, 401. Connecting pipe, 402. Air interface, 403. Hydrogen interface, 404. Gas duct, 405. Mixing plate, 5. Reaction chamber, 501. Upper sealing plate, 502. Lower sealing plate, 503. Inner wall, 504. Outer wall, 505. Fins, 6. Thermocouple monitoring port, 7. Exhaust port. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "center", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-3 As shown, this utility model provides an air-cooled CO preferential oxidation reaction chamber, including a shell 1, a fan assembly, a gas mixing unit 4, and a reaction chamber 5. The reaction chamber 5 is fixedly disposed inside the shell 1, and the gas mixing unit 4 is fixedly disposed on the outer surface of the shell 1, communicating with the reaction chamber 5. The fan assembly is detachably disposed on the shell 1, and the shell 1 is provided with an exhaust port 7, which communicates with the reaction chamber 5. Thus, by setting up the gas mixing unit 4, this solution enhances the mixing effect of hydrogen and air before hydrogen enters the catalyst, ensuring the reaction efficiency of the catalyst and CO, thereby increasing the CO reaction efficiency. Simultaneously, due to the fan assembly, the heat generated by the reaction can be quickly dissipated to avoid affecting the reaction efficiency.

[0023] The air-cooled CO preferential oxidation reaction chamber of this utility model, such as Figures 1-3As shown, based on the previously described technical solution, the gas mixing unit 4 can also be configured as follows: It includes a connecting pipe 401, a hydrogen interface 403, an air interface 402, a gas duct 404, and a mixing plate 405. The gas duct 404 is connected to the reaction chamber 5 via the connecting pipe 401. The mixing plate 405 is fixedly disposed inside the gas duct 404. The hydrogen interface 403 and the air interface 402 are both connected to the gas duct 404. The mixing plate 405 has a spiral plate structure. In this way, connecting the gas duct 404 to the reaction chamber 5 via the connecting pipe 401 ensures smooth gas flow, thereby improving mixing efficiency. Furthermore, the connection of the hydrogen interface 403 and the air interface 402 to the gas duct 404 makes gas input more direct and convenient, while ensuring uniform mixing of the two gases. The mixing plate 405, as a spiral plate structure, not only increases the path length of gas flow but also promotes thorough gas mixing through its spiral shape, further improving mixing uniformity. This structural design enables the gas mixing unit 4 to effectively reduce turbulence and dead zones during the gas mixing process, thereby improving mixing efficiency and reaction uniformity.

[0024] The air-cooled CO preferential oxidation reaction chamber of this utility model, such as Figures 1-3 As shown, based on the technical solution described above, another option is to have multiple mixing plates 405 arranged along the length of the air passage 404. This arrangement of the mixing plates 405 effectively improves the mixing efficiency of the airflow and fuel. The multiple mixing plates 405 arranged along the length of the air passage 404 ensure that the fuel and air are fully mixed before entering the combustion chamber.

[0025] It is understandable that the air mixing plate 405 can be arranged in a spiral shape;

[0026] Spiral mixing plates 405 are provided in the air passage 404, and these mixing plates 405 are arranged in a spiral shape along the length of the air passage 404. The arrangement of the spiral mixing plates 405 can increase the rotational motion of the airflow, further promoting the mixing of fuel and air. This arrangement can improve the mixing efficiency and help to form a more uniform air-fuel mixture in the combustion chamber.

[0027] It can also be understood that the air mixing panel 405 can be a staggered arrangement of air mixing panels 405;

[0028] Two or more sets of mixing plates 405 are arranged in the air passage 404, and these mixing plates 405 are staggered so that the airflow changes direction as it passes through each set of mixing plates 405. The staggered arrangement of the mixing plates 405 can break the straight-line movement of the airflow, increase the contact area and contact time between the airflow and the fuel, thereby improving the mixing efficiency. This arrangement also helps to form a uniform air-fuel mixture in the combustion chamber, improving combustion efficiency.

[0029] The air-cooled CO preferential oxidation reaction chamber of this utility model, such as Figures 1-3 As shown, based on the technical solution described above, the fan assembly can also include an intake fan 2 and an exhaust fan 3, which are detachably mounted on opposite sides of the housing 1. In this way, by detachably mounting the intake fan 2 and exhaust fan 3 on opposite sides of the housing 1, the fan assembly achieves efficient and flexible airflow management. The intake fan 2 is responsible for drawing air in from a specific area, while the exhaust fan 3 expels air. This layout ensures continuous air circulation and improves heat dissipation efficiency. Furthermore, the detachable design of the fans makes maintenance and replacement more convenient, extends the service life of the equipment, and allows for flexible replacement of fans with different performance characteristics according to different usage environments and needs, thereby achieving optimal ventilation.

[0030] The air-cooled CO preferential oxidation reaction chamber of this utility model, such as Figures 1-3 As shown, based on the technical solution described above, the reaction chamber 5 can also be: an upper sealing plate 501, a lower sealing plate 502, an inner wall 503, and an outer wall 504. The outer wall 504 is sleeved on the outside of the inner wall 503. The upper sealing plate 501 is positioned at the upper end of the integral formed by the inner wall 503 and the outer wall 504. The lower sealing plate 502 is positioned at the lower end of the integral formed by the inner wall 503 and the outer wall 504. Multiple partitions are evenly distributed between the inner wall 503 and the outer wall 504. Gaps are left between the partitions and the upper sealing plate 501 and the lower sealing plate 502. The gas mixing unit 4 is connected to the gap at the upper part of the reaction chamber 5. The exhaust port 7 is connected to the gap at the lower part of the reaction chamber 5.

[0031] The design of the reaction chamber 5, through the upper sealing plate 501 and the lower sealing plate 502, completely seals the cavity formed by the inner wall 503 and the outer wall 504, thereby ensuring the airtightness of the entire reaction process. This airtight design effectively prevents the leakage of harmful gases that may be generated during the reaction, ensuring the safety of operators and protecting the environment. Furthermore, a series of baffles are installed between the inner wall 503 and the outer wall 504, which significantly increase the surface area inside the reaction chamber 5. This increased surface area helps improve reaction efficiency because more reactants can contact the reaction surface, thereby accelerating the reaction process. Simultaneously, these baffles also greatly improve heat exchange efficiency because they increase the heat transfer area, allowing the heat generated during the reaction to be removed more quickly, thus maintaining a stable reaction temperature.

[0032] Meanwhile, the appropriate gaps between these partitions and the upper sealing plate 501 and lower sealing plate 502 provide the necessary space for the gas mixing unit 4 and the exhaust port 7. These gaps allow the gas mixing unit 4 to communicate with the upper part of the reaction chamber 5, ensuring that the reactant gas can enter the catalyst between the partitions, thereby improving the uniformity and consistency of the reaction. The communication between the exhaust port 7 and the lower part of the reaction chamber 5 ensures that the exhaust gas generated during the reaction can be effectively discharged, avoiding the accumulation of exhaust gas in the reaction chamber 5, and further improving the safety of the reaction process.

[0033] This structural design not only optimizes the reaction process, making it more efficient and controllable, but also significantly improves the efficiency and safety of reaction chamber 5. Through this design, reaction chamber 5 can operate under more stable and safer conditions, thus providing reliable technical support for industrial production.

[0034] The air-cooled CO preferential oxidation reaction chamber of this utility model, such as Figures 1-3 As shown, based on the technical solution described above, another option is to have fins 505 fixedly disposed on the inner side of the inner wall 503. This design, with fins 505 fixedly disposed on the inner side of the inner wall 503, can significantly improve heat exchange efficiency. By increasing the heat exchange area, the fins 505 allow the fluid to be absorbed more effectively as it passes through the inner wall 503. Furthermore, the presence of the fins 505 can also promote fluid turbulence, further enhancing the heat exchange process.

[0035] The air-cooled CO preferential oxidation reaction chamber of this utility model, such as Figures 1-3As shown, based on the previously described technical solution, another option is to have multiple thermocouple monitoring ports 6 provided on the outer wall 504, with the thermocouple monitoring ports 6 extending through the housing 1 to the outside of the housing 1. In this way, by providing multiple thermocouple monitoring ports 6 on the outer wall 504 and extending these ports through the housing 1 to the outside of the housing 1, real-time monitoring of the internal temperature of the housing 1 can be achieved. This design allows operators or automated systems to accurately measure and control the temperature inside the reaction chamber, thereby ensuring that the equipment operates within the optimal temperature range and improving the stability and service life of the equipment. Furthermore, the multiple monitoring ports provide more comprehensive monitoring of the temperature distribution, helping to promptly detect and resolve potential overheating problems and avoid equipment damage or safety accidents caused by abnormal temperatures.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wind-cooled CO preferential oxidation reaction chamber, characterized in that: The device includes a housing (1), a fan assembly, a gas mixing unit (4), and a reaction chamber (5). The reaction chamber (5) is fixedly disposed inside the housing (1). The gas mixing unit (4) is fixedly disposed on the outer surface of the housing (1) and is connected to the reaction chamber (5). The fan assembly is detachably disposed on the housing (1). The housing (1) is provided with an exhaust port (7) and is connected to the reaction chamber (5).

2. The air-cooled CO preferential oxidation reaction chamber according to claim 1, characterized in that: The gas mixing unit (4) includes a connecting pipe (401), a hydrogen interface (403), an air interface (402), a gas duct (404), and a mixing plate (405). The gas duct (404) is connected to the reaction chamber (5) through the connecting pipe (401). The mixing plate (405) is fixedly installed inside the gas duct (404). The hydrogen interface (403) and the air interface (402) are both connected to the gas duct (404). The mixing plate (405) has a spiral plate structure.

3. The air-cooled CO preferential oxidation reaction chamber according to claim 2, characterized in that: Multiple mixing plates (405) are provided, and the multiple mixing plates (405) are arranged along the length direction of the air passage (404).

4. The air-cooled CO preferential oxidation reaction chamber according to claim 1, characterized in that: The fan assembly includes an intake fan (2) and an exhaust fan (3), which are detachably mounted on both sides of the housing (1).

5. The air-cooled CO preferential oxidation reaction chamber according to claim 1, characterized in that: The reaction chamber (5) includes an upper sealing plate (501), a lower sealing plate (502), an inner wall (503), and an outer wall (504). The outer wall (504) is fitted outside the inner wall (503). The upper sealing plate (501) is positioned at the upper end of the integral formed by the inner wall (503) and the outer wall (504). The lower sealing plate (502) is positioned at the lower end of the integral formed by the inner wall (503) and the outer wall (504). Multiple partitions are evenly distributed between the inner wall (503) and the outer wall (504). There are gaps between the partitions and the upper sealing plate (501) and the lower sealing plate (502). The gas mixing unit (4) is connected to the gap at the upper part of the reaction chamber (5). The exhaust port (7) is connected to the gap at the lower part of the reaction chamber (5).

6. The air-cooled CO preferential oxidation reaction chamber according to claim 5, characterized in that: Fins (505) are fixedly provided on the inner side of the inner wall (503).

7. The air-cooled CO preferential oxidation reaction chamber according to claim 5, characterized in that: The outer wall (504) is provided with a plurality of thermocouple monitoring ports (6), which extend through the housing (1) to the outside of the housing (1).

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