Air filtering device of fuel cell

Abstract

The utility model discloses an air filtering device of a fuel cell, which comprises a suction pipe, a filtering shell, an air uniformizing assembly, a plurality of dehumidification plates, a drainage assembly, a filter element assembly and an air conveying pipe, the filtering shell comprises a dehumidification chamber and a filtering chamber, and the suction pipe is communicated with the dehumidification chamber; the air uniformizing assembly is arranged on the filtering shell and located in the dehumidification cavity, one end of the air uniformizing assembly communicates with the suction pipe, and the other end of the air uniformizing assembly communicates with the dehumidification cavity; the multiple dehumidification plates are arranged on the filtering shell and located in the dehumidification cavity, and the multiple dehumidification plates are located on one side of the air uniformizing assembly; the drainage assembly is used for automatically draining water in the dehumidification chamber; the filter element assembly is arranged on the filter shell and located in the filter cavity. And the air conveying pipe is communicated with the filtering chamber. Therefore, water can be automatically drained, and humid air can be pretreated, so that the air filtering effect is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of fuel cells, and in particular to an air filtration device for fuel cells. Background Technology

[0002] Fuel cells require air as an oxidant for electrochemical reactions; therefore, air filtration plays a crucial role in their proper operation. Air may contain dust, particulate matter, and other pollutants, which can affect fuel cell performance, cause corrosion, blockage, or premature failure. Therefore, air filtration removes these harmful substances, providing clean air to the fuel cell to maintain its efficient and stable operation.

[0003] The original air filtration device directly draws in air for filtration. After filtration, the air is delivered to the fuel cell as an oxidant, thus completing the air filtration. After long-term use, the relevant personnel can manually drain the water generated during the filtration process periodically (the water is generated because when air with a high moisture content passes through the low-temperature filtration device, the moisture in the air will condense and accumulate in the filtration device).

[0004] However, air filters that directly draw in humid air (which contains water droplets or water vapor) can contaminate the filters with water vapor or other liquids. Excessive moisture can also cause corrosion or blockage of the filters, affecting their filtration efficiency. In addition, manual drainage requires human intervention and regular maintenance, which increases maintenance costs. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, the purpose of this utility model is to provide an air filtration device for a fuel cell that can automatically drain water and pre-treat humid air to prevent excessive moisture from corroding or clogging the filtration device, thereby ensuring the air filtration effect.

[0007] To achieve the above objectives, this utility model proposes an air filtration device for a fuel cell, comprising an intake pipe, a filter housing, an air distribution assembly, multiple dehumidifiers, a drainage assembly, a filter element assembly, and an air supply pipe. The filter housing includes a dehumidification chamber and a filter chamber, with the intake pipe communicating with the dehumidification chamber. The air distribution assembly is mounted on the filter housing and located within the dehumidification chamber, with one end communicating with the intake pipe and the other end communicating with the dehumidification chamber. Multiple dehumidifiers are respectively mounted on the filter housing and located within the dehumidification chamber, with the multiple dehumidifiers positioned on one side of the air distribution assembly. The drainage assembly includes a drainage tank, a connector, and a buoyancy plate. The drainage tank is located at the bottom of the filter housing and communicates with the dehumidification chamber, with a drainage hole at the bottom. The connector is slidably mounted within the drainage tank and connects to the drainage hole. The buoyancy plate is positioned above the connector. The filter element assembly is mounted on the filter housing and located within the filter chamber. The air supply pipe communicates with the filter chamber.

[0008] This invention relates to an air filtration device for a fuel cell, which can automatically drain water and pre-treat humid air to prevent excessive moisture from corroding or clogging the filtration device, thereby ensuring the air filtration effect.

[0009] In addition, the air filtration device for a fuel cell proposed in this application may also have the following additional technical features:

[0010] Specifically, the connector includes a sliding block and a plug-in block. The sliding block is slidably connected to the drainage tank and has a through-hole for water permeability. A buoyancy plate is positioned above the sliding block. The plug-in block is positioned at the bottom of the sliding block and is plugged into the drain hole.

[0011] Specifically, a metal filter is installed at one end of the inhalation tube.

[0012] Specifically, the air distribution assembly includes an air distribution duct and multiple air distribution plates. One end of the air distribution duct is connected to the suction pipe, and the other end of the air distribution duct is connected to the dehumidification chamber. The multiple air distribution plates are respectively installed inside the air distribution duct.

[0013] Specifically, the filter assembly includes an activated carbon filter and two particulate filters, with the activated carbon filter located in the middle of the two particulate filters.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the structure of an air filtration device for a fuel cell according to an embodiment of the present invention;

[0017] Figure 2 This is a cross-sectional schematic diagram of an air filtration device for a fuel cell according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of a wind equalization component according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of a drainage component according to an embodiment of the present invention.

[0020] As shown in the figure: 1. Inhalation pipe; 10. Metal filter screen; 2. Filter housing; 20. Dehumidification chamber; 21. Filter chamber; 3. Air distribution assembly; 30. Air distribution duct; 31. Air distribution plate; 4. Dehumidification plate; 5. Drainage assembly; 50. Drainage box; 500. Drain hole; 51. Connector; 510. Sliding block; 511. Connector block; 52. Buoyancy plate; 6. Filter element assembly; 60. Activated carbon filter element; 61. Granular filter element; 7. Air duct. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0022] The air filtration device for a fuel cell according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0023] like Figures 1-4 As shown, the air filtration device for the fuel cell in this embodiment of the present invention may include an intake pipe 1, a filter housing 2, an air distribution assembly 3, multiple dehumidification plates 4, a drainage assembly 5, a filter element assembly 6, and an air supply pipe 7.

[0024] The filter housing 2 may include a dehumidification chamber 20 and a filter chamber 21, and the suction pipe 1 is connected to the dehumidification chamber 20.

[0025] It should be noted that the suction pipe 1 described in this embodiment is connected to a booster pump (not shown in the figure) to ensure the inflow of air.

[0026] The air distribution component 3 is mounted on the filter housing 2 and located inside the dehumidification chamber 20. One end of the air distribution component 3 is connected to the suction pipe 1, and the other end of the air distribution component 3 is connected to the dehumidification chamber 20.

[0027] In this embodiment, the air distribution component 3 is used to evenly distribute the air in the suction pipe 1 onto the dehumidification plate 4, thereby ensuring the dehumidification effect of the dehumidification plate 4.

[0028] Multiple dehumidification plates 4 are respectively disposed on the filter housing 2 and located in the dehumidification chamber 20, and the multiple dehumidification plates 4 are located on one side of the air distribution assembly 3.

[0029] It should be noted that the dehumidifying plate 4 described in this embodiment is corrugated. Multiple corrugated dehumidifying plates 4 are evenly arranged vertically to form multiple corrugated flow channels. Humid air enters from one end of the flow channel and repeatedly hits the walls (hitting the walls means that the humid air comes into contact with the dehumidifying plate 4), causing the dehumidifying plate 4 to absorb water vapor and form water droplets. These droplets then slide from the bottom of the corrugated plate to the bottom of the dehumidification chamber 20, where they are concentrated at the drainage component 5. Furthermore, the dehumidifying plate 4 can be made of commercially available dehumidifying materials, thereby improving its dehumidification effect.

[0030] It should be noted that one end of the dehumidification plate 4 described in this embodiment is tilted downwards, thereby ensuring that the water droplets condensed on the dehumidification plate 4 slide off the dehumidification plate 4 and avoid water accumulation on the dehumidification plate 4.

[0031] The drainage assembly 5 may include a drainage tank 50, a connector 51, and a buoyancy plate 52.

[0032] The drain box 50 is located at the bottom of the filter housing 2 and communicates with the dehumidification chamber 20. A drain hole 500 is provided at the bottom of the drain box 50. The connector 51 is slidably disposed in the drain box 50 and is inserted into the drain hole 500. The buoyancy plate 52 is disposed above the connector 51. The filter element assembly 6 is disposed on the filter housing 2 and located in the filter chamber 21. The air duct 7 communicates with the filter chamber 21.

[0033] It should be noted that the diameter of the buoyancy plate 52 described in this embodiment is smaller than the diameter of the drainage tank 50, thereby preventing the buoyancy plate 52 from being jammed by the drainage tank 50, and the buoyancy of the buoyancy plate 52 is greater than the weight of the connector 51, thereby enabling the connector 51 to be lifted.

[0034] Specifically, in actual operation, relevant personnel start the device, and the controller (not shown in the figure) controls the booster pump to work, allowing external air to enter the dehumidification chamber 20 through the intake pipe 1. The air is then evenly dispersed by the air distribution component 3, ensuring that the air delivered to the dehumidification chamber 20 is uniformly dispersed. Multiple dehumidification plates 4 then uniformly dehumidify the air. After dehumidification, the air is filtered by the filter element assembly 6 and delivered to the fuel cell (not shown in the figure) through the air supply pipe 7, thus completing the air filtration. Additionally, the water vapor adsorbed by the dehumidification plates 4 condenses into droplets, which slide to the bottom of the dehumidification chamber 20 and flow into the drain tank. When a certain amount of water accumulates in the drain tank, the water causes the buoyancy plate 52 to rise. The buoyancy plate 52 then causes the connector 51 to open the drain hole 500, allowing water to flow out, thus achieving automatic drainage of the device.

[0035] In one embodiment of this utility model, such as Figures 2-4 As shown, the connector 51 may include a sliding block 510 and a connector block 511.

[0036] The sliding block 510 is slidably connected to the drainage box 50, and a water-permeable hole is provided through the sliding block 510. The buoyancy plate 52 is located above the sliding block 510, and the plug-in block 511 is located at the bottom of the sliding block 510 and is plugged into the drain hole 500.

[0037] It is understandable that by setting up the water-permeable holes (not shown in the figure), the water pressure on the sliding block 510 is prevented from increasing the weight of the sliding block 510, thus preventing the buoyancy plate 52 from floating and lifting the sliding block 510.

[0038] In one embodiment of this utility model, such as Figures 2-4 As shown, a metal filter screen 10 is provided at one end of the inhalation tube 1.

[0039] Understandably, the metal filter 10 is designed to prevent pebbles and large particles from being drawn into the filter housing 2.

[0040] In one embodiment of this utility model, such as Figures 2-4 As shown, the air distribution assembly 3 may include an air distribution duct 30 and multiple air distribution plates 31.

[0041] One end of the air distribution duct 30 is connected to the suction pipe 1, and the other end of the air distribution duct 30 is connected to the dehumidification chamber 20. Multiple air distribution plates 31 are respectively installed inside the air distribution duct 30.

[0042] It should be noted that the multiple air distribution plates 31 described in this embodiment have different tilt angles, so that the air is dispersed by the air distribution plates 31 at different angles, thus ensuring the air distribution effect of the air distribution plates 31.

[0043] In one embodiment of this utility model, such as Figures 2-4 As shown, the filter element assembly 6 may include an activated carbon filter element 60 and two particulate filter elements 61, with the activated carbon filter element 60 located in the middle of the two particulate filter elements 61.

[0044] It should be noted that the activated carbon filter element 60 and the particulate filter element 61 described in this embodiment are common filter elements on the market. The activated carbon filter element 60 can purify harmful gases in the air and ensure the reaction quality of the fuel cell, while the particulate filter element 61 can filter fine particles and dust in the air, thereby ensuring the cleanliness of the air.

[0045] Specifically, during actual operation, relevant personnel start the device, and the controller (not shown in the figure) controls the booster pump to work, so that external air enters the dehumidification chamber 20 from the suction pipe 1, and passes through the air distribution plate 31 to distribute the air evenly in the dehumidification chamber 20. This allows multiple dehumidification plates 4 to dehumidify the air evenly. After dehumidification, the air is filtered by the activated carbon filter element 60 and two particulate filter elements 61 and then transported from the air supply pipe 7 to the fuel cell (not shown in the figure), thus completing the air filtration. In addition, the water vapor adsorbed by the dehumidifying plate 4 condenses into droplets, slides down to the bottom of the dehumidifying chamber 20, and flows into the drain tank. When a certain amount of water accumulates in the drain tank, the water drives the buoyancy plate 52 to rise, the buoyancy plate 52 drives the sliding block 510 to rise, and the water on the sliding block 510 flows through the bottom of the permeable hole box of the sliding block 510. The rise of the sliding block 510 drives the plug block 511 to rise and opens the drain hole 500, allowing water to flow out from the drain hole 500, thereby realizing the automatic drainage of this device.

[0046] In summary, the air filtration device of the fuel cell in this embodiment of the present invention can automatically drain water and pre-treat humid air to prevent excessive moisture from corroding or clogging the filtration device, thereby ensuring the air filtration effect.

[0047] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An air filtration device for a fuel cell, characterized in that, It includes an intake pipe, filter housing, air distribution assembly, multiple dehumidifiers, drainage assembly, filter element assembly, and air delivery duct. The filter housing includes a dehumidification chamber and a filter chamber, and the suction pipe is connected to the dehumidification chamber; The air distribution assembly is disposed on the filter housing and located in the dehumidification chamber. One end of the air distribution assembly is connected to the suction pipe, and the other end of the air distribution assembly is connected to the dehumidification chamber. Multiple dehumidification plates are respectively disposed on the filter housing and located in the dehumidification chamber, and the multiple dehumidification plates are located on one side of the air distribution assembly; The drainage assembly includes a drainage tank, connectors, and a buoyancy plate, wherein... The drainage box is located at the bottom of the filter housing and communicates with the dehumidification chamber, and a drainage hole is provided at the bottom of the drainage box; The connector is slidably disposed inside the drainage tank and is inserted into the drain hole; The buoyancy plate is positioned above the connector; The filter element assembly is disposed on the filter housing and located within the filter chamber; The air supply pipe is connected to the filter chamber.

2. The air filtration device for a fuel cell according to claim 1, characterized in that, The connector includes a sliding block and a plug-in block, wherein... The sliding block is slidably connected to the drainage tank, and a water-permeable hole is provided through the sliding block, and the buoyancy plate is arranged above the sliding block; The plug-in block is located at the bottom of the sliding block and is plugged into the drain hole.

3. The air filtration device for a fuel cell according to claim 1, characterized in that, A metal filter screen is provided at one end of the inhalation tube.

4. The air filtration device for a fuel cell according to claim 1, characterized in that, The air distribution assembly includes an air distribution duct and multiple air distribution plates, wherein... One end of the air distribution duct is connected to the suction pipe, and the other end of the air distribution duct is connected to the dehumidification chamber; Multiple air distribution plates are respectively disposed inside the air distribution duct.

5. The air filtration device for a fuel cell according to claim 1, characterized in that, The filter assembly includes an activated carbon filter element and two particulate filter elements, with the activated carbon filter element located in the middle of the two particulate filter elements.

Images