Air-cooled hydrogen fuel cell with directional dust removal function
By designing internal and external dust removal modules and air guide plates, a controllable bidirectional radial high-pressure dust removal channel is constructed, realizing directional pulse dust removal and automatic collection from the inside out and from the outside in. This solves the problems of low dust removal efficiency and secondary dust pollution in air-cooled hydrogen fuel cells, and improves dust removal efficiency and heat dissipation stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIE HYDROGEN (SHANGHAI) NEW ENERGY TECH CO LTD
- Filing Date
- 2026-02-28
- Publication Date
- 2026-05-29
AI Technical Summary
Existing air-cooled hydrogen fuel cells have low dust removal efficiency, rely on manual maintenance, and are prone to secondary dust pollution. Furthermore, the existing structure makes it difficult to achieve bidirectional scouring from the inside out and from the outside in, resulting in high maintenance costs, high energy consumption, and limited dust removal efficiency.
It adopts internal and external dust removal modules, and constructs a controllable bidirectional radial high-pressure dust removal channel through air guide plates and dust collection units. Combined with sliding frames and dust guide chambers, it realizes directional pulse dust removal and automatic collection. It uses high-pressure airflow to precisely act on the target area, and combines opening and closing units to realize local fixed-point enhanced dust removal.
It significantly improves dust removal efficiency, reduces maintenance costs and energy consumption, prevents secondary dust diffusion, and ensures heat dissipation stability and dust removal effect.
Smart Images
Figure CN122117962A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of hydrogen fuel cell technology, specifically to an air-cooled hydrogen fuel cell with directional dust removal function. Background Technology
[0002] Air-cooled hydrogen fuel cells are widely used in distributed power generation systems, backup power supplies, and lightweight power equipment due to their relatively simple structure, lack of complex liquid cooling systems, and fast start-up response. These hydrogen fuel cells typically rely on ambient air as the oxygen required for the reaction and as a heat dissipation medium. They contain air channels, heat dissipation fins, and multi-layered stacked structures, and inevitably ingest dust, fiber particles, and other suspended impurities from the air during long-term operation.
[0003] In existing technologies, dust removal in air-cooled hydrogen fuel cells mostly relies on the passive carrying of dust by natural airflow or on the initial interception of incoming air using simple filters. However, these methods still have significant shortcomings in practical use: on the one hand, filters are prone to clogging after long-term operation, leading to increased airflow resistance and affecting battery reaction efficiency and heat dissipation performance; on the other hand, fine dust entering the battery can easily accumulate in airflow corners, heat sink gaps, and localized areas inside the stack, forming dust dead zones that are difficult to remove with conventional airflow.
[0004] Furthermore, most existing dust removal structures lack targeted cleaning capabilities, failing to perform point-to-point cleaning based on the location and extent of dust accumulation. Maintenance typically relies on complete shutdown, disassembly, or manual cleaning, resulting in high maintenance costs, long cycles, and the potential introduction of new pollution risks. Some dust removal structures employing continuous purging methods consume high energy during operation, and their unidirectional airflow makes it difficult to achieve bidirectional scouring of the fuel cell interior from both the inside and outside, limiting dust removal efficiency. Simultaneously, existing technologies generally lack effective means of collecting stripped dust, leading to secondary suspension of dust within the equipment or surrounding environment, making it prone to re-entering the fuel cell system and causing repeated pollution. Summary of the Invention
[0005] To address the aforementioned issues, an air-cooled hydrogen fuel cell with directional dust removal function is provided. By proposing a method for pulsed dynamic removal and collection of dust on the hydrogen fuel cell, the technical problems of low dust removal efficiency, reliance on manual maintenance, and easy secondary pollution of dust in existing air-cooled hydrogen fuel cells are solved.
[0006] To address the problems of existing technologies, this invention provides an air-cooled hydrogen fuel cell with directional dust removal function, comprising: a frame; a hydrogen fuel cell, vertically stacked on the frame and having an internal heat dissipation channel; an internal dust removal module, vertically disposed within the heat dissipation channel, the internal dust removal module having a first and a second air guide plate that can slide relative to each other within the heat dissipation channel, and a first dust collection unit capable of collecting blockages, the first and second air guide plates enclosing a first dust removal zone; and an external dust removal module, vertically disposed outside the hydrogen fuel cell, the external dust removal module having a dust removal chamber, a third and a fourth air guide plate that can slide relative to each other within the dust removal chamber, and a second dust collection unit capable of collecting blockages, the third and fourth air guide plates enclosing a second dust removal zone; in the dust removal state, the first and second dust removal zones are continuously horizontally opposite each other, and when the first dust removal zone is in an air outlet state, the second dust removal zone is in an air inlet state.
[0007] Preferably, the internal dust removal module further includes a first linear actuator capable of adjusting the distance between the first air guide plate and the second air guide plate, and a first adjustment unit capable of adjusting the longitudinal height of the first air guide plate; the first linear actuator is vertically fixedly mounted on the first air guide plate and its driving end passes through the first air guide plate and is fixedly connected to the second air guide plate; the first adjustment unit is vertically fixedly mounted on the hydrogen fuel cell and its adjustment end is fixedly connected to the first air guide plate; the first dust collection unit is horizontally fixedly mounted at the bottom of the second air guide plate.
[0008] Preferably, the first adjustment unit includes a fixed frame, a drive screw vertically disposed on the first air guide plate, and a drive element capable of driving the drive screw to move vertically up and down; the fixed frame is horizontally fixedly disposed on the top of the hydrogen fuel cell; the drive screw is vertically disposed on the first air guide plate and its rod portion passes through the fixed frame and is slidably engaged with the fixed frame; the drive element is fixedly disposed on the fixed frame and is drively connected to the drive screw.
[0009] Preferably, the surface of the second air guide plate is further provided with a first through hole that can guide the dust in the first dust removal zone into the first dust collection unit.
[0010] Preferably, the first dust collection unit is provided with a dust guide chamber capable of discharging dust from the first dust removal zone, a dust guide port radially opened on the side wall of the dust guide chamber, and a sliding frame capable of closing the dust guide port in a non-dust-discharging state; the sliding frame is slidably disposed in the dust guide chamber and has a second through hole at its top for guiding air source into the first dust removal zone; the dust guide port is radially opened on the side wall of the dust guide chamber and disposed near the top of the dust guide chamber; a plurality of dust guide ports are arranged circumferentially along the axis of the dust guide chamber.
[0011] Preferably, the first dust collection unit further includes a dust collection chamber capable of collecting blockages; the dust collection chamber is centrally covered outside the dust guide chamber and communicates with the dust guide port.
[0012] Preferably, the internal dust removal module further includes an opening and closing unit capable of unidirectionally guiding the dust removal air source within the first dust removal zone; the opening and closing unit is fixedly mounted vertically on the first air guide plate and multiple sets are arranged along the center circumference of the first air guide plate.
[0013] Preferably, the external dust removal module further includes a third linear actuator capable of adjusting the distance between the third and fourth air guide plates and a second adjustment unit capable of adjusting the longitudinal height of the third air guide plate; the third linear actuator is vertically fixedly disposed on the third air guide plate and passes through the third air guide plate and is fixedly connected to the fourth air guide plate; the second adjustment unit is fixedly disposed on the top of the hydrogen fuel cell.
[0014] The advantages of this invention compared to the prior art are:
[0015] 1. This invention constructs a controllable bidirectional radial high-pressure dust removal channel by combining an internal dust removal module and an external dust removal module. It can selectively achieve directional pulse dust removal from the inside out or from the outside in according to the operating conditions, effectively solving the problem that dust is easy to accumulate in the flow channel, heat sink and stack body in the traditional structure and is difficult to remove.
[0016] 2. This invention, through the adjustable gap and height design of multiple sets of air guide plates, enables the high-pressure airflow to be spatially constrained and precisely applied to the target area, avoiding ineffective blowing and energy waste, and significantly improving dust removal efficiency and targeting; at the same time, with the help of the automatic air intake / dust guiding structure formed by the sliding frame and the dust guiding chamber, as well as the continuous dust collection cooperation between the dust collection chamber and the external dust collection system, active interception and centralized recycling are achieved in the dust removal process, preventing secondary diffusion of dust;
[0017] 3. This invention selectively opens the air source outlet through the opening and closing unit, thereby achieving localized and targeted enhanced dust removal. This significantly improves the heat dissipation stability of the air-cooled hydrogen fuel cell in a dusty environment without increasing the structural complexity of the fuel cell body. Attached Figure Description
[0018] Figure 1 This is a top view of an air-cooled hydrogen fuel cell with directional dust removal function provided in an embodiment of this application.
[0019] Figure 2 yes Figure 1 Sectional view at point AA.
[0020] Figure 3 yes Figure 2 A magnified view of section B.
[0021] Figure 4 yes Figure 2 A magnified view of a portion of point C.
[0022] Figure 5 This is a side view of an air-cooled hydrogen fuel cell with directional dust removal function provided in an embodiment of this application.
[0023] Figure 6 yes Figure 5 Sectional view of the DD section.
[0024] Figure 7 This is an exploded perspective view of the internal dust removal module in an air-cooled hydrogen fuel cell with directional dust removal function, provided in one embodiment of this application.
[0025] Figure 8 This is a three-dimensional view of the internal dust removal module in an air-cooled hydrogen fuel cell with directional dust removal function, provided in one embodiment of this application.
[0026] The numbers on the map are:
[0027] 1. Rack;
[0028] 2. Hydrogen fuel cells;
[0029] 3. Internal dust removal module; 31. First air guide plate; 32. Second air guide plate; 321. First guide rod; 322. First through hole; 33. First dust removal zone; 34. First dust collection unit; 341. Dust guide chamber; 342. Dust guide port; 343. Sliding frame; 344. Second through hole; 345. Dust collection chamber; 35. First linear actuator; 36. First adjustment unit; 361. Fixing frame; 362. Drive screw; 363. Drive element; 364. Second guide rod; 37. Opening and closing unit; 371. Second linear actuator; 372. Opening and closing plate;
[0030] 4. External dust removal module; 41. Dust removal chamber; 42. Third air guide plate; 43. Fourth air guide plate; 44. Second dust removal zone; 45. Second dust collection unit; 46. Third linear actuator; 47. Second adjustment unit. Detailed Implementation
[0031] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0032] See Figures 1 to 8 The following is illustrated: An air-cooled hydrogen fuel cell with directional dust removal function includes: a frame 1; a hydrogen fuel cell 2, vertically stacked on the frame 1 and having an internal heat dissipation channel; an internal dust removal module 3, vertically disposed within the heat dissipation channel, the internal dust removal module 3 having a first air guide plate 31 and a second air guide plate 32 that can slide relative to each other within the heat dissipation channel, and a first dust collection unit 34 capable of collecting blockages, the first air guide plate 31 and the second air guide plate 32 enclosing a first dust removal zone 33; and an external dust removal module 4. Vertically mounted outside the hydrogen fuel cell 2, the external dust removal module 4 includes a dust removal chamber 41, a third air guide plate 42 and a fourth air guide plate 43 that can slide relative to each other within the dust removal chamber 41, and a second dust collection unit 45 that can collect blockages. The third air guide plate 42 and the fourth air guide plate 43 enclose a second dust removal zone 44. In the dust removal state, the first dust removal zone 33 and the second dust removal zone 44 are continuously horizontally opposite each other. When the first dust removal zone 33 is in an air outlet state, the second dust removal zone 44 is in an air inlet state.
[0033] The hydrogen fuel cells 2 are stacked in a U-shape, and their internal space forms a heat dissipation channel.
[0034] During the heat dissipation and dust removal operations of the hydrogen fuel cell 2, the inner dust removal module 3 and the outer dust removal module 4 enter the working state, so that the first dust removal zone 33, which is enclosed by the first air guide plate 31 and the second air guide plate 32, and the second dust removal zone 44, which is enclosed by the third air guide plate 42 and the fourth air guide plate 43, are arranged horizontally opposite each other in space and correspond to the inner and outer dust removal areas of the hydrogen fuel cell 2. When performing radial dust removal operations on the hydrogen fuel cell 2 from the inside out, that is, air is supplied from the first dust removal zone 33 to the second dust removal zone 44, it is only necessary to activate the external air source connected to the inner dust removal module 3 to generate a pulsed or continuous high-pressure air source. Under the limiting and guiding effect of the first dust removal zone 33, the high-pressure airflow acts radially at high speed in a controlled manner on the blocked area inside the hydrogen fuel cell 2, thereby effectively washing away the dust and impurities attached to the flow channel, heat dissipation structure or stack surface. The removed blockages are propelled into the second dust removal zone 44 by the airflow, where they are intercepted and guided, eventually falling into the corresponding second dust collection unit 45 for centralized collection. When radial dust removal from the outside in is required, a high-pressure air source is generated by driving the external air source connected to the external dust removal module 4 to achieve reverse flushing. The dust removal path and collection logic are consistent with the aforementioned process. The specific locations, heights, and coverage areas of the first dust removal zone 33 and the second dust removal zone 44 can be preset or adjusted according to the structure of the hydrogen fuel cell 2 and the dust accumulation distribution.
[0035] Of course, negative pressure can also be generated in the first dust removal zone 33 or the second dust removal zone 44 near the blockage area to achieve the purpose of unidirectional active dust suction without backflushing and cleaning, thus reducing losses.
[0036] Furthermore, to achieve efficient dust removal, the inner dust removal module 3 and the outer dust removal module 4 operate in concert: specifically, when the inner dust removal module 3 operates, guiding the high-pressure air source through the first dust removal zone 33 to deliver air into the second dust removal zone 44, the outer dust removal module 4 operates simultaneously, driving the external air source connected to it to perform a back suction, creating a negative pressure inside the second dust removal zone 44; through the combination of negative pressure and high-pressure air delivery, a directional airflow from the inside to the outside is formed within the second dust removal zone 44 to guide and carry dust out efficiently. It should be noted that in this embodiment, the air source refers to a device capable of delivering air, such as a blower; while the back suction can be accomplished by a vacuum pump, an induced draft fan, a negative pressure fan, or other induced draft devices.
[0037] See Figure 5 and Figure 6As shown: The internal dust removal module 3 also includes a first linear actuator 35 capable of adjusting the distance between the first air guide plate 31 and the second air guide plate 32, and a first adjustment unit 36 capable of adjusting the longitudinal height of the first air guide plate 31; the first linear actuator 35 is vertically fixed on the first air guide plate 31 and its driving end passes through the first air guide plate 31 and is fixedly connected to the second air guide plate 32; the first adjustment unit 36 is vertically fixed on the hydrogen fuel cell 2 and its adjustment end is fixedly connected to the first air guide plate 31; the first dust collection unit 34 is horizontally fixed at the bottom of the second air guide plate 32.
[0038] The second air guide plate 32 is also vertically provided with a first guide rod 321. The first guide rod 321 is vertically provided on the second air guide plate 32 and the rod part passes through the first air guide plate 31 and slides in cooperation with the first air guide plate 31.
[0039] When it is necessary to adjust the air guide gap between the first air guide plate 31 and the second air guide plate 32 according to different dust removal conditions, the first linear actuator 35 is driven to move the second air guide plate 32 away from or closer to the first air guide plate 31 in a controlled manner until an air guide gap that meets the preset wind pressure and wind speed requirements is formed between the two. After the gap adjustment is completed, the first adjustment unit 36 is driven to move the first air guide plate 31 and the second air guide plate 32, which have completed the gap setting, as a whole in the vertical direction to the corresponding target dust removal height position, so as to ensure that the high-pressure airflow can accurately cover the target dust removal area.
[0040] The first linear actuator 35 is preferably an electric push rod.
[0041] See Figure 5 and Figure 6 As shown: The first adjustment unit 36 is provided with a fixed frame 361, a drive screw 362 vertically arranged on the first air guide plate 31, and a drive element 363 capable of driving the drive screw 362 to move vertically up and down; the fixed frame 361 is horizontally fixedly arranged on the top of the hydrogen fuel cell 2; the drive screw 362 is vertically arranged on the first air guide plate 31 and the rod part passes through the fixed frame 361 and slides in cooperation with the fixed frame 361; the drive element 363 is fixedly arranged on the fixed frame 361 and is connected to the drive screw 362 in a transmission manner.
[0042] The drive element 363 is specifically a screw jack.
[0043] The first adjustment unit 36 further includes a second guide rod 364, which passes through the fixed frame 361 and forms a sliding engagement with it to guide and limit the longitudinal movement of the first air guide plate 31. When it is necessary to adjust the longitudinal dust removal height of the first air guide plate 31, an external power supply is connected to drive the drive element 363 to start. The drive element 363 drives the drive screw 362 to rotate, thereby converting the rotational motion into linear displacement in the vertical direction, and thus smoothly driving the first air guide plate 31 to move up and down within a preset stroke range until the target dust removal height position is reached. The structural form of the first adjustment unit 36 is not limited to the above embodiment; its core is to achieve reliable longitudinal adjustment and stable positioning of the first air guide plate 31.
[0044] See Figure 3 and Figure 7 As shown: The surface of the second air guide plate 32 is also provided with a first through hole 322 that can guide the dust in the first dust removal zone 33 into the first dust collection unit 34.
[0045] When performing radial dust removal from the outside to the inside, the dust and impurities flushed off the outer surface of the hydrogen fuel cell 2 by the external dust removal module 4 move along a preset path under the guidance of airflow and automatically pass through the first through hole 322, and finally enter the first dust collection unit 34 for centralized collection, thereby avoiding secondary diffusion of dust inside the equipment or in the surrounding environment.
[0046] See Figure 3 , Figure 6 and Figure 7 As shown: The first dust collection unit 34 is provided with a dust guide chamber 341 that can guide dust out of the first dust removal zone 33, a dust guide port 342 radially opened on the side wall of the dust guide chamber 341, and a sliding frame 343 that can close the dust guide port 342 in the non-dust guiding state; the sliding frame 343 is slidably disposed in the dust guide chamber 341 and a second through hole 344 is also opened through the top to guide the air source into the first dust removal zone 33; the dust guide port 342 is radially opened on the side wall of the dust guide chamber 341 and disposed near the top of the dust guide chamber 341; multiple dust guide ports 342 are arranged circumferentially along the axis of the dust guide chamber 341.
[0047] The sliding frame 343 is a hollow rectangular chamber with an open bottom. Its external dimensions match the inner wall of the dust collection chamber 341, allowing it to slide up and down within it. The second through hole 344 is provided through the top of the sliding frame 343. In the non-dust removal state, the sliding frame 343 is located at the bottom of the dust collection chamber 341 under its own weight. When performing radial dust removal from the inside out and connecting the dust collection chamber 341 to an external high-pressure air source, the external air supply pipe is first connected to the bottom of the dust collection chamber 341. At this time, high-pressure gas enters the dust collection chamber 341 and pushes the sliding frame 343 to move vertically upward, so that it abuts against the top inner wall of the dust collection chamber 341, thereby connecting the second through hole 344 with the first through hole 322, realizing continuous air supply to the first dust removal zone 33. Meanwhile, since the dust guide port 342 is located on the top of the side wall of the dust guide chamber 341, it is automatically blocked during the upward movement of the sliding frame 343, retaining only the air intake function; when dust removal is performed from the outside to the inside and the bottom of the dust guide chamber 341 is not connected to a high-pressure air source, the sliding frame 343 falls back to the bottom under the action of gravity, and the dust guide port 342 is exposed again, thereby achieving continuous dust guidance.
[0048] See Figure 7 Note: The first dust collection unit 34 also includes a dust collection chamber 345 capable of collecting blockages; the dust collection chamber 345 is centrally covered outside the dust guide chamber 341 and communicates with the dust guide port 342.
[0049] The bottom of the dust collection bin 345 is also fixedly provided with an outlet pipe, which is used to connect with an external dust collection box or a centralized dust removal system, so that the dust collected inside the dust collection bin 345 can be continuously or periodically discharged, avoiding excessive dust accumulation in the dust collection bin 345 and affecting the dust removal efficiency.
[0050] See Figure 6 and Figure 8 As shown: The internal dust removal module 3 also includes an opening and closing unit 37 that can guide the dust removal air source in the first dust removal zone 33 in one direction; the opening and closing unit 37 is fixedly installed vertically on the first air guide plate 31 and multiple sets are arranged along the center circumference of the first air guide plate 31.
[0051] The opening and closing unit 37 is provided in four sets.
[0052] The opening and closing unit 37 consists of an opening and closing plate 372 and a second linear actuator 371 capable of driving the opening and closing plate 372 to slide longitudinally; the opening and closing plate 372 is slidably disposed on one side of the first air guide plate 31 in a vertical state; the second linear actuator 371 is fixedly disposed on the first air guide plate 31 in a vertical state and its driving end is fixedly connected to the top of the opening and closing plate 372.
[0053] When performing high-pressure dust removal from the inside out and further directional restriction of the high-pressure air source is required, the corresponding opening and closing unit 37 can be driven to operate according to the dust removal needs, selectively opening or closing the corresponding side opening, so that the high-pressure airflow is only discharged from the specified direction, thereby achieving precise flushing of the local area.
[0054] See Figure 6 and Figure 8 As shown: The external dust removal module 4 further includes a third linear actuator 46 capable of adjusting the distance between the third air guide plate 42 and the fourth air guide plate 43, and a second adjustment unit 47 capable of adjusting the longitudinal height of the third air guide plate 42; the third linear actuator 46 is vertically fixedly disposed on the third air guide plate 42 and passes through the third air guide plate 42 and is fixedly connected to the fourth air guide plate 43; the second adjustment unit 47 is fixedly disposed on the top of the hydrogen fuel cell 2.
[0055] When it is necessary to adjust the air guide gap between the third air guide plate 42 and the fourth air guide plate 43, the third linear actuator 46 is driven to move the fourth air guide plate 43 away from or closer to the third air guide plate 42 until a preset air guide gap is formed. Then, the second adjustment unit 47 drives both of them to move longitudinally to the target dust removal height. The working principle of the external dust removal module 4 is the same as that of the internal dust removal module 3. The difference is that the third air guide plate 42, the fourth air guide plate 43, and the second dust collection unit 45 are adaptively arranged according to the outer periphery of the hydrogen fuel cell 2, thereby ensuring the external dust removal effect.
[0056] This invention can not only remove blockages in hydrogen fuel cells but also collect the blockages, achieving high removal efficiency and good results.
[0057] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims
1. An air-cooled hydrogen fuel cell with directional dust removal function, characterized in that, include: frame; Hydrogen fuel cells are vertically stacked on the frame and have internal heat dissipation channels. An internal dust removal module is vertically installed in the heat dissipation channel. The internal dust removal module is equipped with a first air guide plate and a second air guide plate that can slide relative to each other in the heat dissipation channel, as well as a first dust collection unit that can collect blockages. The first air guide plate and the second air guide plate enclose a first dust removal zone. An external dust removal module is vertically installed outside the hydrogen fuel cell. The external dust removal module is equipped with a dust removal chamber and a third and fourth air guide plate that can slide relative to each other in the dust removal chamber, as well as a second dust collection unit that can collect blockages. The third and fourth air guide plates enclose a second dust removal zone. In dust removal mode, the first dust removal zone and the second dust removal zone are continuously set horizontally relative to each other. When the first dust removal zone is in an air outlet state, the second dust removal zone is in an air inlet state.
2. An air-cooled hydrogen fuel cell with directional dust removal function according to claim 1, characterized in that, The internal dust removal module also includes a first linear actuator capable of adjusting the distance between the first air guide plate and the second air guide plate, and a first adjustment unit capable of adjusting the longitudinal height of the first air guide plate. The first linear actuator is fixedly mounted vertically on the first air guide plate, and the driving end passes through the first air guide plate and is fixedly connected to the second air guide plate. The first adjustment unit is fixedly mounted vertically on the hydrogen fuel cell and its adjustment end is fixedly connected to the first air guide plate. The first dust collection unit is horizontally fixed at the bottom of the second air guide plate.
3. An air-cooled hydrogen fuel cell with directional dust removal function according to claim 2, characterized in that, The first adjustment unit is provided with a fixed frame, a drive screw vertically arranged on the first air guide plate, and a drive element that can drive the drive screw to rise and fall longitudinally. The mounting bracket is horizontally fixed to the top of the hydrogen fuel cell; The drive screw is vertically disposed on the first air guide plate and the rod portion passes through the fixed frame and slides in cooperation with the fixed frame. The driving element is fixedly mounted on the mounting frame and is connected to the driving screw.
4. An air-cooled hydrogen fuel cell with directional dust removal function according to claim 1, characterized in that, The surface of the second air guide plate is also provided with a first through hole that can guide the dust in the first dust removal zone into the first dust collection unit.
5. An air-cooled hydrogen fuel cell with directional dust removal function according to claim 4, characterized in that, The first dust collection unit is provided with a dust guide chamber that can guide the dust in the first dust removal zone, a dust guide port that is radially opened on the side wall of the dust guide chamber, and a sliding frame that can close the dust guide port in the non-dust guiding state. The sliding frame is slidably disposed in the dust collection chamber and has a second through hole at the top that can guide the air source into the first dust removal zone. The dust guide openings are radially opened on the side wall of the dust guide chamber and are located near the top of the dust guide chamber; multiple dust guide openings are arranged circumferentially along the axis of the dust guide chamber.
6. An air-cooled hydrogen fuel cell with directional dust removal function according to claim 5, characterized in that, The first dust collection unit also includes a dust collection bin capable of collecting blockages; The dust collection chamber is centrally covered and located outside the dust guiding chamber, and is connected to the dust guiding port.
7. An air-cooled hydrogen fuel cell with directional dust removal function according to claim 1, characterized in that, The internal dust removal module also includes an opening and closing unit that can guide the dust removal air source in the first dust removal zone in one direction. The opening and closing unit is fixedly installed vertically on the first air guide plate, and multiple sets are arranged along the center circumference of the first air guide plate.
8. An air-cooled hydrogen fuel cell with directional dust removal function according to claim 1, characterized in that, The external dust removal module also includes a third linear actuator capable of adjusting the distance between the third and fourth air guide plates and a second adjustment unit capable of adjusting the longitudinal height of the third air guide plate. The third linear actuator is vertically fixedly mounted on the third air guide plate and passes through the third air guide plate to be fixedly connected to the fourth air guide plate; The second adjustment unit is fixedly mounted on top of the hydrogen fuel cell.