Dehydrogenation device and hydrogen fuel cell

Abstract

The utility model relates to a hydrogen elimination device and a hydrogen fuel cell. The hydrogen elimination device comprises a shell, and a hydrogen elimination module, a gas mixing mechanism and a heat exchange flow channel which are arranged in the shell. The gas mixing mechanism is communicated between a gas inlet port of the shell and a hydrogen elimination inlet of the hydrogen elimination module, and the heat exchange flow channel is communicated between an exhaust port of the shell and a hydrogen elimination outlet of the hydrogen elimination module. And the heat exchange flow channel passes through the outer wall of the gas mixing mechanism and is used for exchanging heat with the outer wall of the gas mixing mechanism. Hydrogen enters the gas mixing mechanism from the gas inlet port and becomes hydrogen-oxygen mixed gas in the gas mixing mechanism, the hydrogen-oxygen mixed gas enters the hydrogen elimination module to eliminate hydrogen, reacted gas discharged from the hydrogen elimination module carries heat and enters the heat exchange flow channel, and the heat exchange flow channel exchanges heat with the outer wall of the gas mixing mechanism. Therefore, the hydrogen-oxygen mixed gas in the gas mixing mechanism is preheated, the hydrogen-oxygen mixed gas carries heat to enter the hydrogen elimination module, a catalyst in the hydrogen elimination module rapidly reaches the reaction temperature, and the overall hydrogen elimination efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of hydrogen processing technology, and in particular to a hydrogen removal device and a hydrogen fuel cell. Background Technology

[0002] With the development of hydrogen treatment technology, current fuel cells still emit small amounts of hydrogen in their exhaust, especially in confined environments. These small, repeated emissions can lead to increased hydrogen concentration and safety hazards. Therefore, adding efficient hydrogen exhaust treatment devices is crucial. Current hydrogen removal devices suffer from slow start-up and low efficiency because the temperature of hydrogen and oxygen on the catalyst surface cannot quickly reach the reaction rate. Utility Model Content

[0003] Therefore, it is necessary to provide a hydrogen removal device and a hydrogen fuel cell to address the problem of low efficiency in existing hydrogen removal solutions.

[0004] A hydrogen removal device, comprising:

[0005] shell;

[0006] The hydrogen elimination module is housed within the outer casing;

[0007] The mixing mechanism is located inside the housing and connects the air inlet of the housing to the hydrogen elimination inlet of the hydrogen elimination module.

[0008] The heat exchange channel connects the exhaust port of the outer shell to the hydrogen elimination outlet of the hydrogen elimination module; and the heat exchange channel passes through the outer wall of the mixing mechanism for heat exchange with the outer wall of the mixing mechanism.

[0009] In one embodiment, the mixing mechanism includes:

[0010] A gas blockage plate is installed inside the housing to divide the housing into a first space A and a second space B; the first space A is connected to the air inlet port and the second space B is connected to the air outlet port; the gas blockage plate is provided with vent holes;

[0011] A gas mixing pipe is installed in the second space B. One end of the gas mixing pipe is connected to the hydrogen elimination inlet, and the other end of the gas mixing pipe is connected to the first space A through a vent hole.

[0012] The hydrogen-oxygen mixing element is installed inside the mixing pipe and is used to mix hydrogen and oxygen that enter the mixing pipe from the vent.

[0013] In one embodiment, it further includes:

[0014] The heat exchange shell is located in the second space B and is covered by the gas blocking plate;

[0015] Both the hydrogen elimination module and the gas mixing mechanism are located between the heat exchange shell and the gas plug plate;

[0016] The heat exchange channel includes a first channel section and a second channel section that are connected to each other;

[0017] A third space C is formed between the outer wall of the hydrogen elimination module and the inner wall of the heat exchange shell, and a fourth space D is formed between the outer wall of the gas mixing mechanism and the inner wall of the heat exchange shell.

[0018] The first flow channel section is formed by merging the third space C and the fourth space D; the second flow channel section is formed between the outer wall of the heat exchange shell and the inner wall of the shell.

[0019] A flow port is provided on the heat exchange shell to connect the fourth space D with the second space B.

[0020] In one embodiment, the interior of the hydrogen removal module is filled with a hydrogen removal catalyst.

[0021] In one embodiment, the housing includes a main body, a first separation portion, and a second separation portion;

[0022] The air intake port is located on the first separator, and the exhaust port is located on the second separator;

[0023] The main body includes a first end and a second end; a first separation part is assembled at the first end of the main body, and a second separation part is assembled at the second end of the second separation part.

[0024] In one embodiment, the first separation section includes an integrally formed air intake section and a diffuser section;

[0025] The air intake port is located on the air intake section, and the diffuser section is located away from the opening of the air intake section and is used to assemble on the first end of the main body.

[0026] The intake section is provided with a first intake channel, and the diffuser section is provided with a second intake channel; the intake port is connected to the first intake channel, and the first intake channel is connected to the second intake channel; the diameter of the second intake channel perpendicular to the length direction is larger than that of the first intake channel.

[0027] And / or,

[0028] The second separation section includes an integrally formed exhaust section and a collection section;

[0029] The exhaust port is located on the exhaust section, and the converging section is located away from the opening of the exhaust section and is used for assembly at the second end of the main body.

[0030] The exhaust section is provided with a first exhaust channel, and the diffuser section is provided with a second exhaust channel; the exhaust port is connected to the first exhaust channel, and the first exhaust channel is connected to the second exhaust channel; the diameter of the second exhaust channel in the direction perpendicular to its own length is larger than that of the first exhaust channel.

[0031] In one embodiment, at least two gas mixing pipes are provided, and the number of vent holes on the gas plug plate corresponds to the number of gas mixing pipes.

[0032] In one embodiment, the heat exchange housing includes a first assembly portion, and the gas plug plate is provided with a second assembly portion;

[0033] The first assembly part and the second assembly part are sealed together so that the heat exchange shell is assembled on the gas plug plate.

[0034] In one embodiment, the hydrogen-oxygen mixing element is arranged inside the mixing pipe along the length of the mixing pipe.

[0035] A hydrogen fuel cell includes the aforementioned hydrogen elimination device, wherein the hydrogen exhaust port of the hydrogen fuel cell is connected to the inlet port of the hydrogen elimination device.

[0036] The aforementioned hydrogen removal device includes: a housing, and a hydrogen removal module, a gas mixing mechanism, and a heat exchange channel disposed inside the housing. The gas mixing mechanism connects the gas inlet port of the housing to the hydrogen removal inlet of the hydrogen removal module, and the heat exchange channel connects the gas outlet port of the housing to the hydrogen removal outlet of the hydrogen removal module. The heat exchange channel passes through the outer wall of the gas mixing mechanism for heat exchange. Hydrogen gas enters the gas mixing mechanism from the gas inlet port, becoming a hydrogen-oxygen mixture within it. This mixture then enters the hydrogen removal module to remove hydrogen. The reacted gas discharged from the hydrogen removal module carries heat and enters the heat exchange channel, where it exchanges heat with the outer wall of the gas mixing mechanism. This preheats the hydrogen-oxygen mixture within the gas mixing mechanism, allowing it to carry heat into the hydrogen removal module and rapidly reach the reaction temperature of the catalyst within the module, thus improving the overall hydrogen removal efficiency.

[0037] A hydrogen fuel cell, including the aforementioned hydrogen removal device, has the aforementioned beneficial effects. Attached Figure Description

[0038] Figure 1 This is a cross-sectional view of the hydrogen removal device provided in an embodiment of this application.

[0039] Figure 2 This is a diagram showing the gas flow direction within the hydrogen removal device provided in the embodiments of this application.

[0040] Figure 3 This is a schematic diagram of the structure of the second separation section provided in an embodiment of this application.

[0041] Figure 4 This is a schematic diagram of the structure of the first separation section provided in an embodiment of this application.

[0042] Figure 5 This is a schematic diagram of the structure of the heat exchange shell provided in an embodiment of this application.

[0043] Figure 6 This is a front view of the gas plug provided in an embodiment of this application.

[0044] Figure 7 This is a schematic diagram of the structure of the hydrogen-oxygen mixing element provided in the embodiments of this application.

[0045] Icon labels:

[0046] 1. Outer casing; 1.1. Air inlet port; 1.2. Exhaust port; 1.3. Main body;

[0047] 1.4 First Separation Section; 1.4.1 Intake Section; 1.4.2 Diffusion Section;

[0048] 1.5 Second Separation Section; 1.5.1 Exhaust Section; 1.5.2 Collection Section;

[0049] 2. Hydrogen removal module; 2.1 Hydrogen removal inlet; 2.2 Hydrogen removal outlet;

[0050] 3. Gas mixing mechanism; 4. Heat exchange flow channel;

[0051] 5. Gas plug; 5.1. Vent hole;

[0052] 6. Gas mixing pipe; 7. Hydrogen-oxygen mixing element; 8. Heat exchange shell; 8.1. Flow port;

[0053] A. First space; B. Second space; C. Third space; D. Fourth space. Detailed Implementation

[0054] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0055] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0056] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0060] See Figure 1 and attached Figure 2 , Figure 1 This is a cross-sectional view of the hydrogen removal device provided in an embodiment of this application. Figure 2 This is a gas flow diagram within the hydrogen removal device provided in this embodiment. The hydrogen removal device includes a housing 1, a hydrogen removal module 2, a gas mixing mechanism 3, and a heat exchange channel 4. Both the hydrogen removal module 2 and the gas mixing mechanism 3 are housed within the housing 1. The housing 1 has an inlet port 1.1 and an exhaust port 1.2, both of which communicate with the interior of the housing 1. The hydrogen removal module 2 has a hydrogen removal inlet 2.1 and a hydrogen removal outlet 2.2. The interior of the hydrogen removal module 2 is used to remove hydrogen gas. Both the hydrogen removal inlet 2.1 and the hydrogen removal outlet 2.2 communicate with the interior of the hydrogen removal module 2. The gas mixing mechanism 3 connects between the inlet port 1.1 and the hydrogen removal inlet 2.1.

[0061] A heat exchange channel 4 is also located inside the outer casing 1, connecting the inlet port 1.1 and the hydrogen removal outlet 2.2. The outer side of the heat exchange channel 4 passes through the outer wall of the mixing mechanism 3. When the gas generated from hydrogen removal carries heat and flows through the outer wall of the mixing mechanism 3, the gas exchanges heat with the outer wall, thereby heating the interior of the mixing mechanism 3. The hydrogen removal module 2 is located inside the outer casing 1 and connects to the outside through the hydrogen removal inlet 2.1 and the hydrogen removal outlet 2.2. It can specifically treat the incoming hydrogen-containing gas for hydrogen removal, achieving efficient hydrogen removal. The mixing mechanism 3, connecting the inlet port 1.1 and the hydrogen removal inlet 2.1, ensures that the incoming gas is fully mixed before entering the hydrogen removal module 2, ensuring that the hydrogen removal module 2 can more effectively handle hydrogen with different concentrations, improving the overall efficiency and stability of hydrogen removal.

[0062] Hydrogen gas enters the mixing mechanism 3 through the inlet port 1.1, where it becomes a hydrogen-oxygen mixture. This mixture then enters the hydrogen elimination module 2 to remove the hydrogen. The gas discharged from the hydrogen elimination module 2 carries heat and enters the heat exchange channel 4. The heat exchange channel 4 exchanges heat with the outer wall of the mixing mechanism 3, thereby preheating the hydrogen-oxygen mixture in the mixing mechanism 3. This allows the hydrogen-oxygen mixture to carry heat into the hydrogen elimination module 2, enabling the catalyst in the hydrogen elimination module 2 to quickly reach the reaction temperature and improving the overall hydrogen elimination efficiency.

[0063] The heat exchange channel 4 is located inside the outer casing 1 and connects the inlet port 1.1 and the hydrogen elimination outlet 2.2. When the gas generated during hydrogen elimination carries heat and flows through the outer wall of the mixing mechanism 3, it can exchange heat with the mixing mechanism 3, thereby heating the interior of the mixing mechanism 3. This fully utilizes the heat generated during hydrogen elimination, improving energy efficiency and reducing overall system energy consumption. Furthermore, the heated mixing mechanism 3 helps the incoming gas mix better, as the increased temperature may make gas molecules more active, promoting the mixing process and further improving the performance of the hydrogen elimination device.

[0064] In one embodiment of this application, reference is made to the appended specification. Figure 3 -Instruction manual included Figure 7 , Figure 3 This is a schematic diagram of the structure of the second separation section provided in an embodiment of this application. Figure 4 This is a schematic diagram of the structure of the first separation section provided in an embodiment of this application. Figure 5 This is a schematic diagram of the structure of the heat exchange shell provided in an embodiment of this application. Figure 6 This is a front view of the gas plug provided in an embodiment of this application. Figure 7 This is a schematic diagram of the structure of the hydrogen-oxygen mixing element provided in the embodiment of this application. The mixing mechanism 3 shown includes a gas plug 5, a mixing pipe 6, and a hydrogen-oxygen mixing element 7. The gas plug 5 is disposed inside the housing 1, dividing the housing 1 into a first space A and a second space B. The first space A is connected to the inlet port 1.1, and the second space B is connected to the exhaust port 1.2; a vent hole 5.1 is provided on the gas plug 5.

[0065] The gas mixing pipe 6 is installed in the second space B. One end of the gas mixing pipe 6 is connected to the hydrogen elimination inlet 2.1, and the other end of the gas mixing pipe 6 is connected to the first space A through the vent 5.1.

[0066] A hydrogen-oxygen mixing element 7 is installed inside the mixing pipe 6 to mix hydrogen and oxygen entering the mixing pipe 6 through the vent 5.1. The heat generated during hydrogen removal, which might otherwise be wasted, is guided to the mixing mechanism 3 for utilization through the design of the heat exchange channel 4. This achieves energy recovery, avoids unnecessary energy loss, and improves the energy efficiency of the entire system.

[0067] By fully utilizing the heat generated during the hydrogen elimination process, the need for external energy input is reduced. This not only lowers the overall energy consumption of the system but also reduces energy costs.

[0068] The heated gas mixing mechanism 3 raises the internal gas temperature, making the gas molecules more active. This increases the collision frequency between different gas molecules, promoting the mixing process. The more uniform gas mixing allows the hydrogen removal module 2 to more effectively process hydrogen-containing gases, improving the hydrogen removal efficiency.

[0069] The increased temperature helps break up the localized aggregation of gas molecules, allowing the gas to be distributed more evenly within the mixing mechanism 3. This ensures that the gas entering the hydrogen elimination module 2 has a consistent composition and concentration, avoiding situations where the local hydrogen concentration is too high or too low, and further improving the performance stability of the hydrogen elimination device.

[0070] The initial temperature and properties of gases may vary under different working environments. By heating the gas mixing mechanism 3 through heat exchange, the temperature and mixing state of the gases can be adjusted to a certain extent, enabling the hydrogen removal device to better adapt to different operating conditions and improving the versatility and reliability of the device.

[0071] Good gas mixing and suitable temperature help the hydrogen removal module 2 to carry out the hydrogen removal reaction more efficiently. The setting of heat exchange channel 4 indirectly improves the working efficiency of the hydrogen removal module 2, enabling the hydrogen removal device to remove hydrogen more quickly and thoroughly, meeting stringent safety and environmental protection requirements. Improved system stability: Through the rational utilization of heat and optimization of gas mixing, the operation of the entire hydrogen removal device is more stable. It reduces performance fluctuations caused by temperature fluctuations or uneven gas mixing, lowers the risk of equipment failure, and extends the service life of the equipment.

[0072] In one embodiment of this application, the hydrogen removal device further includes a heat exchange shell 8, which is disposed in the second space B and covers the gas blocking plate 5.

[0073] Both the hydrogen elimination module 2 and the gas mixing mechanism 3 are disposed between the heat exchange shell 8 and the gas plug 5. The heat exchange channel 4 includes a first channel section and a second channel section that are connected to each other. A third space C is formed between the outer wall of the hydrogen elimination module 2 and the inner wall of the heat exchange shell 8, and a fourth space is formed between the outer wall of the gas mixing mechanism 3 and the inner wall of the heat exchange shell 8.

[0074] The first flow channel section is formed by merging the third space C and the fourth space; the second flow channel section is formed between the outer wall of the heat exchange shell 8 and the inner wall of the outer shell 1. A flow port 8.1 is provided on the heat exchange shell 8, which is used to connect the fourth space and the second space B.

[0075] By setting up a heat exchange shell 8, the hydrogen elimination module 2 and the gas mixing mechanism 3 are placed between the heat exchange shell 8 and the gas plug 5, so that the first flow channel section of the heat exchange channel 4 is formed by the merging of the third space C and the fourth space. This can concentrate the heat exchange area and improve the efficiency of heat exchange; heat can be transferred more effectively between the hot gas generated by the hydrogen elimination module 2 and the gas mixing mechanism 3, making full use of the heat generated during the hydrogen elimination process to heat the gas mixing mechanism 3.

[0076] The heat exchange channel 4 is divided into a first and second interconnected channel section, with the location of each channel section clearly defined. This clear structural design makes the heat flow path more explicit, facilitating the analysis and optimization of the heat exchange process. It also allows for adjustments and improvements to the heat exchange channel 4 during design and maintenance.

[0077] A third space C is formed between the outer wall of the hydrogen removal module 2 and the inner wall of the heat exchange shell 8, and a fourth space is formed between the outer wall of the gas mixing mechanism 3 and the inner wall of the heat exchange shell 8. These two spaces are combined to form the first flow channel section. This design greatly increases the contact area for heat exchange, allowing the hot gas to come into more full contact with the outer wall of the gas mixing mechanism 3, thereby improving the efficiency of heat transfer.

[0078] The structural design of the heat exchange channel 4 helps to achieve a more uniform heat distribution. As the hot gas flows through the first channel section, it can evenly transfer heat to different parts of the mixing mechanism 3, avoiding localized overheating or undercooling. This helps improve the operational stability of the mixing mechanism 3, thereby enhancing the performance of the entire hydrogen removal device.

[0079] The arrangement of the heat exchange shell 8 allows for the compact integration of the hydrogen removal module 2, the gas mixing mechanism 3, and the heat exchange channel 4. This layout reduces the size and footprint of the equipment, making it suitable for applications with limited space. Simultaneously, the compact structure helps reduce heat loss and improve energy efficiency.

[0080] The integrated design makes equipment maintenance more convenient. When it is necessary to inspect or replace the hydrogen removal module 2, the gas mixing mechanism 3, or the heat exchange channel 4, the operation can be carried out more easily. In addition, the heat exchange shell 8 also provides a certain degree of protection, reducing damage to internal components from external factors.

[0081] The flow port 8.1 connects the fourth space with the second space B. Flow port 8.1 facilitates gas flow and circulation. After flowing through the first flow channel section, hot gas can enter the second space B through flow port 8.1 to mix with other gases or undergo further processing. Simultaneously, flow port 8.1 can also regulate gas pressure and flow rate to ensure stable operation of the entire system.

[0082] During the heat exchange process, the heated mixing mechanism 3 helps the incoming gas mix better. The placement of the flow port 8.1 allows the mixed gas to flow more smoothly, further improving the gas mixing effect. This is crucial for improving the performance of the hydrogen removal device, as good gas mixing allows the hydrogen removal module 2 to process hydrogen-containing gas more effectively.

[0083] In one embodiment of this application, the hydrogen removal module 2 is internally filled with a hydrogen removal catalyst. The hydrogen removal module 2 can be designed as a columnar structure, which provides a large reaction surface area within a limited space, facilitating sufficient contact between hydrogen and the hydrogen removal catalyst. Alternatively, a multi-layered plate structure can be used, allowing gas to flow between layers, increasing the contact time and opportunity between the gas and the catalyst. Consideration should be given to providing a gas guiding structure, such as a guide plate or guide channel inside the hydrogen removal module 2, to guide the gas to flow uniformly across the catalyst surface, improving hydrogen removal efficiency. The hydrogen removal inlet 2.1 and hydrogen removal outlet 2.2 should be tightly connected to the gas mixing mechanism 3 and the heat exchange channel 4 to ensure smooth gas flow. Seals can be used to prevent gas leakage. The connection to the heat exchange shell 8 should consider heat transfer efficiency to minimize heat loss. Materials with good thermal conductivity can be used for the connection.

[0084] Hydrogen removal catalysts can specifically include: noble metal catalysts, transition metal oxide catalysts, composite catalysts, etc.

[0085] In one embodiment of this application, the outer casing 1 includes a main body 1.3, a first separation portion 1.4, and a second separation portion 1.5; the air inlet port 1.1 is formed on the first separation portion 1.4, and the exhaust port 1.2 is formed on the second separation portion 1.5; the main body 1.3 includes a first end and a second end; the first separation portion 1.4 is assembled on the first end of the main body 1.3, and the second separation portion 1.5 is assembled on the second end of the second separation portion 1.5.

[0086] In one embodiment of this application, the first separation portion 1.4 includes an integrally formed air intake section 1.4.1 and a diffuser section 1.4.2; the air intake port 1.1 is formed on the air intake section 1.4.1, and the diffuser section 1.4.2, facing away from the opening of the air intake section 1.4.1, is used to assemble onto the first end of the main body portion 1.3; the air intake section 1.4.1 is provided with a first air intake channel, and the diffuser section 1.4.2 is provided with a second air intake channel; the air intake port 1.1 communicates with the first air intake channel, and the first air intake channel communicates with the second air intake channel; the diameter of the second air intake channel perpendicular to the length direction is larger than that of the first air intake channel;

[0087] In some embodiments of this application, the second separation section 1.5 includes an integrally formed exhaust section 1.5.1 and a collection section 1.5.2;

[0088] The exhaust port 1.2 is opened on the exhaust section 1.5.1, and the collection section 1.5.2 is opposite to the opening of the exhaust section 1.5.1 and is used to be assembled on the second end of the main body 1.3;

[0089] The aforementioned exhaust section 1.5.1 is provided with a first exhaust flow channel, and the aforementioned diffuser section 1.4.2 is provided with a second exhaust flow channel; the aforementioned exhaust port 1.2 is connected to the aforementioned first exhaust flow channel, and the aforementioned first exhaust flow channel is connected to the aforementioned second exhaust flow channel; the aperture of the aforementioned second exhaust flow channel in the direction perpendicular to its own length is larger than that of the aforementioned first exhaust flow channel. The intake section 1.4.1 and the diffuser section 1.4.2 are integrally formed, and the intake port 1.1 is opened on the intake section 1.4.1 to ensure that the gas can smoothly enter the hydrogen removal device. The first intake flow channel is connected to the intake port 1.1, providing a clear inflow channel for the gas.

[0090] The second inlet channel of the diffuser section 1.4.2 has a larger aperture perpendicular to its length than the first inlet channel, serving to diffuse and buffer the airflow. When gas enters the second inlet channel with a larger aperture from the smaller aperture first inlet channel, the airflow velocity decreases, and the pressure is alleviated to some extent, preventing the impact of high-speed airflow on subsequent components. It also facilitates a more uniform gas distribution before entering the main body 1.3. This gradually expanding inlet channel design helps reduce airflow turbulence and local pressure differences. A uniform and stable airflow improves the mixing effect of the mixing mechanism 3, making the gas entering the hydrogen elimination module 2 more uniform, thereby improving hydrogen elimination efficiency. The one-piece molding design ensures the stability and sealing of the inlet structure, reducing the risk of gas leakage.

[0091] The exhaust section 1.5.1 and the collecting section 1.5.2 are integrally formed, and the exhaust port 1.2 is opened on the exhaust section 1.5.1, so that the gas after hydrogen removal treatment can be discharged from the device in an orderly manner. The first exhaust flow channel is connected to the exhaust port 1.2, providing a channel for the discharged gas.

[0092] The second exhaust channel in the collecting section 1.5.2 has a larger orifice diameter than the first exhaust channel in the direction perpendicular to its length, which serves to collect and facilitate smooth exhaust. After the gas flows out from the hydrogen elimination module 2 and the mixing mechanism 3, it first enters the first exhaust channel with a smaller orifice diameter, and then enters the second exhaust channel with a larger orifice diameter. This helps to collect the gas and accelerate its discharge, avoiding pressure accumulation caused by poor exhaust.

[0093] The gradually widening exhaust channel design reduces exhaust resistance and improves exhaust efficiency. Rapid discharge of treated gas avoids gas retention within the device, reducing potential secondary reactions and energy loss.

[0094] The one-piece molded structure also ensures the stability and sealing of the exhaust section, ensuring the reliable operation of the exhaust process.

[0095] The special design of the intake and exhaust sections works together to optimize the aerodynamic performance of the hydrogen removal device. Stable and uniform intake and smooth and efficient exhaust help improve the working efficiency of the hydrogen removal module 2 and the mixing mechanism 3, thereby enhancing the overall hydrogen removal performance of the device.

[0096] The one-piece molded structure design improves the overall strength and sealing of the housing 1, reduces the risk of failure due to loose connections or leakage, and enhances the reliability and service life of the device.

[0097] In one embodiment of this application, at least two gas mixing pipes 6 are provided, and the number of ventilation holes 5.1 on the gas plug 5 corresponds to the number of gas mixing pipes 6.

[0098] At least two mixing pipes 6 are provided, allowing the incoming gas to be mixed through multiple different paths. As the gas flows through different mixing pipes 6, it generates different flow velocities and directions, thereby increasing the opportunities for collisions and mixing between gas molecules. This results in more uniform gas mixing and improves the mixing effect.

[0099] Multiple mixing pipes 6 can distribute the pressure during the mixing process, preventing excessive pressure drops in a single pipe. This helps maintain stable gas flow, reduces energy loss, and improves the overall efficiency of the hydrogen removal unit. The arrangement of multiple mixing pipes 6 provides redundancy. If one mixing pipe 6 becomes blocked or malfunctions, the others can still continue to operate, ensuring the stability and reliability of the system.

[0100] Multiple vents 5.1 are correspondingly installed with the gas mixing pipe 6, which allows the gas to be distributed more evenly throughout the hydrogen elimination device. This helps to avoid situations where the local gas concentration is too high or too low, improves the working efficiency of the hydrogen elimination module 2, and reduces potential safety risks.

[0101] Depending on the specific operating conditions, the gas mixing effect can be optimized by adjusting the number of mixing pipes 6 and the size of the vents 5.1. For example, when processing high-flow-rate gas, the number of mixing pipes 6 can be increased to improve mixing efficiency; when processing low-flow-rate gas, the number of mixing pipes 6 can be reduced to decrease system complexity and cost.

[0102] In one embodiment of this application, the heat exchange shell 8 includes a first assembly portion, and the gas plug 5 is provided with a second assembly portion; the first assembly portion and the second assembly portion are sealed together so that the heat exchange shell 8 is assembled on the gas plug 5.

[0103] The sealed connection creates a relatively enclosed space between the heat exchange shell 8 and the gas plug 5, which contains the hydrogen removal module 2 and the gas mixing mechanism 3. This clearly defines the heat exchange area, ensuring that the heat generated by hydrogen removal can be concentrated and transferred within this space, thus improving the efficiency of heat exchange.

[0104] The specific selection of the first assembly part and the aforementioned second assembly part can be set as flange connection and sealing gasket, clamp connection and sealing ring, etc., which will not be elaborated here.

[0105] In one embodiment of this application, the hydrogen-oxygen mixing element 7 is arranged inside the gas mixing pipe 6 along the length of the gas mixing pipe 6.

[0106] Arranging the hydrogen-oxygen mixing element 7 along the length of the gas mixing pipe 6 inside the gas mixing pipe 6 can make full use of the space in the pipe, allowing the gas to be in contact with the mixing element for a longer period of time during the flow process, thereby improving the mixing efficiency.

[0107] A hydrogen fuel cell includes the aforementioned hydrogen elimination device, wherein the hydrogen discharge port of the hydrogen fuel cell is connected to the aforementioned inlet port 1.1 of the hydrogen elimination device.

[0108] Hydrogen fuel cells produce a certain amount of hydrogen emissions during operation. Connecting the hydrogen exhaust port of the hydrogen fuel cell to the inlet port 1.1 of the hydrogen elimination device allows the emitted hydrogen to immediately enter the device for treatment, preventing hydrogen accumulation in the surrounding environment and thus reducing the risk of explosion due to hydrogen leakage, significantly improving the safety of the entire system. The hydrogen elimination device can convert the hydrogen emitted by the hydrogen fuel cell into harmless substances, such as water vapor, thereby reducing the environmental impact of hydrogen. This meets environmental protection requirements and helps promote the sustainable development of hydrogen energy.

[0109] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0110] The above embodiments are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A hydrogen removal device, characterized in that, include: Outer shell (1); Hydrogen removal module (2) is disposed inside the outer casing (1); The gas mixing mechanism (3) is disposed inside the housing (1) and connects the gas inlet (1.1) of the housing (1) with the hydrogen elimination inlet (2.1) of the hydrogen elimination module (2); The heat exchange channel (4) is connected between the exhaust port (1.2) of the outer shell (1) and the hydrogen elimination outlet (2.2) of the hydrogen elimination module (2); and the heat exchange channel (4) passes through the outer wall of the gas mixing mechanism (3) for heat exchange with the outer wall of the gas mixing mechanism (3).

2. The hydrogen removal device according to claim 1, characterized in that, The gas mixing mechanism (3) includes: A gas blockage plate (5) is disposed inside the outer shell (1) to divide the inner shell (1) into a first space A and a second space B; the first space A is connected to the air inlet port (1.1), and the second space B is connected to the exhaust port (1.2); a vent hole (5.1) is provided on the gas blockage plate (5). A gas mixing pipe (6) is provided in the second space B. One end of the gas mixing pipe (6) is connected to the hydrogen elimination inlet (2.1), and the other end of the gas mixing pipe (6) is connected to the first space A through the vent (5.1). A hydrogen-oxygen mixing element (7) is disposed inside the gas mixing pipe (6) for mixing hydrogen and oxygen that enter the gas mixing pipe (6) from the vent (5.1).

3. The hydrogen removal device according to claim 2, characterized in that, Also includes: The heat exchange shell (8) is disposed in the second space B and covers the gas blockage plate (5); The hydrogen removal module (2) and the gas mixing mechanism (3) are both located between the heat exchange shell (8) and the gas blocking plate (5); The heat exchange channel (4) includes a first channel section and a second channel section that are connected to each other; A third space C is formed between the outer wall of the hydrogen removal module (2) and the inner wall of the heat exchange shell (8), and a fourth space D is formed between the outer wall of the gas mixing mechanism (3) and the inner wall of the heat exchange shell (8). The first flow channel section is formed by merging the third space C and the fourth space D; the second flow channel section is formed between the outer wall of the heat exchange shell (8) and the inner wall of the outer shell (1); A flow port (8.1) is provided on the heat exchange shell (8), which is used to connect the fourth space D with the second space B.

4. The hydrogen removal device according to claim 1, characterized in that, The hydrogen elimination module (2) is filled with a hydrogen elimination catalyst.

5. The hydrogen removal device according to claim 1, characterized in that, The outer shell (1) includes a main body (1.3), a first separation part (1.4), and a second separation part (1.5). The air intake port (1.1) is located on the first separation section (1.4), and the exhaust port (1.2) is located on the second separation section (1.5); The main body (1.3) includes a first end and a second end; the first separation part (1.4) is assembled at the first end of the main body (1.3), and the second separation part (1.5) is assembled at the second end of the second separation part (1.5).

6. The hydrogen removal device according to claim 5, characterized in that, The first separation section (1.4) includes an integrally formed air intake section (1.4.1) and a diffuser section (1.4.2). The air intake port (1.1) is opened on the air intake section (1.4.1), and the diffuser section (1.4.2) is opposite to the opening of the air intake section (1.4.1) for assembly at the first end of the main body (1.3); The air intake section (1.4.1) is provided with a first air intake channel, and the diffuser section (1.4.2) is provided with a second air intake channel; the air intake port (1.1) is connected to the first air intake channel, and the first air intake channel is connected to the second air intake channel; the diameter of the second air intake channel perpendicular to the length direction is larger than that of the first air intake channel; And / or, The second separation section (1.5) includes an integrally formed exhaust section (1.5.1) and a collection section (1.5.2). The exhaust port (1.2) is opened on the exhaust section (1.5.1), and the opening of the collecting section (1.5.2) opposite to the exhaust section (1.5.1) is used to assemble the second end of the main body (1.3); The exhaust section (1.5.1) is provided with a first exhaust channel, and the diffuser section (1.4.2) is provided with a second exhaust channel; the exhaust port (1.2) is connected to the first exhaust channel, and the first exhaust channel is connected to the second exhaust channel; the diameter of the second exhaust channel in the direction perpendicular to its own length is larger than that of the first exhaust channel.

7. The hydrogen removal device according to claim 2, characterized in that, The gas mixing pipe (6) is provided with at least two, and the number of ventilation holes (5.1) on the gas plug (5) is provided in accordance with the number of gas mixing pipes (6).

8. The hydrogen removal device according to claim 3, characterized in that, The heat exchange shell (8) includes a first assembly part, and the gas plug plate (5) is provided with a second assembly part; The first assembly part is sealed to the second assembly part so that the heat exchange shell (8) is assembled on the gas plug (5).

9. The hydrogen removal device according to claim 2, characterized in that, The hydrogen-oxygen mixing element (7) is arranged inside the mixing pipe (6) along the length of the mixing pipe (6).

10. A hydrogen fuel cell, characterized in that, The hydrogen elimination device includes any one of the hydrogen exhaust ports of the hydrogen fuel cell and the inlet port (1.1) of the hydrogen elimination device.

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