Air filtering device, air filtering system and vehicle

Abstract

The utility model relates to an air filtering device, an air filtering system and a vehicle, and the air filtering device comprises a shell which is provided with a hollow containing cavity, and the containing cavity is provided with an air inlet and an air outlet; the filter element is arranged in the containing cavity and comprises a plurality of air ducts arranged side by side, the air ducts extend in the opposite direction of the air inlet and the air outlet, every two adjacent air ducts are spaced through a filtering wall, part of air can selectively penetrate through the filtering walls, and blocking walls are arranged in the air ducts; the blocking walls in the adjacent ventilation channels are arranged in a staggered mode in the extending direction of the ventilation channels. In the process that gas passes through the ventilation channel, harmful ingredients in the gas can be continuously adsorbed by the filtering walls around the ventilation channel, the ventilation channel is provided with the blocking wall and the filtering walls, the passing path of the gas entering the air filtering device can be effectively prolonged, and therefore the adsorption effect of the air filtering device on the harmful ingredients in the gas is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle air intake, and in particular, to an air filter device, an air filter system and a vehicle. Background Art

[0002] For the intake system of heavy trucks powered by hydrogen fuel cells, air is used as an oxidant in the fuel cell to react with the hydrogen in the fuel cell. The air contains too many impurities and needs to be filtered before entering the fuel cell. However, the air quality after filtration by the existing chemical air filter is only at the ppm (parts per million) level, and the filtering efficiency of harmful gases is low, resulting in too much harmful gas entering the fuel cell, which will affect the service life of the fuel cell and even cause the reaction to be interrupted in severe cases. Utility Model Content

[0003] The purpose of the present disclosure is to provide an air filtration device, an air filtration system and a vehicle to improve the filtration efficiency of harmful gases and increase the life of fuel cells.

[0004] In order to achieve the above object, the present disclosure provides an air filtering device, comprising:

[0005] A housing is formed with a hollow accommodating cavity, wherein the accommodating cavity is respectively provided with an air inlet and an air outlet; and

[0006] A filter element is arranged in the accommodating cavity, and the filter element includes a plurality of air passages arranged side by side, and the air passages extend in a direction opposite to the air inlet and the air outlet, wherein adjacent air passages are separated by filter walls, and the filter walls can selectively allow part of the gas to pass through, and blocking walls are arranged in the air passages, and the blocking walls in adjacent air passages are staggered in the extension direction of the air passages.

[0007] Optionally, the air passage is a straight channel extending from the air inlet to the air outlet.

[0008] Optionally, the blocking wall is arranged at the end of the air passage, and the blocking walls of two adjacent air passages are arranged at two opposite ends respectively.

[0009] Optionally, the filter wall includes an aluminum base and activated carbon attached to the aluminum base.

[0010] Optionally, the air filtering device further comprises a filling piece, wherein the filling piece is arranged between the filter element and the housing and is used to limit the position of the filter element.

[0011] According to a second aspect of the present disclosure, there is provided an air filtration system, comprising:

[0012] A first air intake pipe, the first air intake pipe is used to connect to a fuel cell;

[0013] an air filter, disposed at an end of the first air intake pipe away from the fuel cell; and

[0014] The air filter device is arranged on the first air intake pipe and is located downstream of the air filter. The air filter device is the above-mentioned air filter device.

[0015] Optionally, the first air inlet pipe comprises:

[0016] A first section, one end of which is connected to the air filter and the other end of which is connected to the air inlet of the air filter device; and

[0017] The second section has one end connected to the air outlet of the air filter device and the other end used to connect to the fuel cell.

[0018] Optionally, the air filter device is connected to the first section and the second section respectively via clamps.

[0019] Optionally, the air filter is connected to a second air intake pipe, the second air intake pipe is connected to the air filter and is located upstream of the air filter, and an air intake end of the second air intake pipe is arranged above the air filter.

[0020] According to a third aspect of the present disclosure, a vehicle is provided, comprising a fuel cell and the above-mentioned air filtration system.

[0021] Through the above technical solution, when the gas passes through the airway, the harmful components therein will be continuously adsorbed by the filter wall around the airway. The airway has a blocking wall and a filter wall, so that the gas in one airway can enter another airway through at least the filter wall before leaving the air filter device through the outlet. It can also effectively extend the path of the gas entering the air filter device, thereby improving the adsorption effect of the air filter device on the harmful components in the gas, so that the quality of the air after filtering by the air filter device can reach the ppb (parts per billion) level.

[0022] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0024] Figure 1 is a schematic diagram of an air filtration system according to an embodiment of the present disclosure.

[0025] Figure 2 is Figure 1 Enlarged view of part A of the foundation.

[0026] Figure 3 It is a schematic diagram of an air filtering device according to one embodiment of the present disclosure.

[0027] Figure 4 is Figure 3 Enlarged view of part B of the foundation.

[0028] Figure 5 is a cross-sectional view of an air filtering device according to one embodiment of the present disclosure.

[0029] Figure 6 It is a single-layer schematic diagram of a filter element of an air filter device according to an embodiment of the present disclosure.

[0030] Description of Reference Numerals

[0031] 1-housing; 11-air inlet; 12-air outlet; 2-filter element; 21-air duct; 22-filter wall; 23-blocking wall; 3-filler; 4-first air inlet pipe; 41-first section; 42-second section; 5-air filter; 6-air filtering device; 7-clamp; 8-second air inlet pipe. DETAILED DESCRIPTION

[0032] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0033] In the present disclosure, unless otherwise stated, directional words such as "upper" and "lower" are defined for the overall arrangement of the air filtration system, and "inner" and "outer" are defined for the outline of the corresponding components. The use of terms such as "first" and "second" is intended to distinguish different components and does not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same reference numerals in different drawings represent the same or similar elements.

[0034] According to one embodiment of the present disclosure, Figures 3 to 6As shown, an air filter device is provided, which may include a housing 1 and a filter element 2. The housing 1 may be formed with a hollow accommodating chamber, and the accommodating chamber is respectively provided with an air inlet 11 and an air outlet 12. The filter element 2 may be arranged in the accommodating chamber, and the filter element 2 includes a plurality of air passages 21 arranged side by side, and the air passages 21 extend in a direction opposite to the air inlet 11 and the air outlet 12, wherein adjacent air passages 21 are separated by filter walls 22, and the filter walls 22 can selectively allow part of the gas to pass through, and a blocking wall 23 is arranged in the air passage 21, and the blocking walls 23 in adjacent air passages 21 are staggered in the extension direction of the air passage 21, so that the gas in one air passage 21 can enter another air passage 21 at least through the filter wall 22. Here, the filter wall 22 can selectively allow part of the gas to pass through means that when the gas in one air passage 21 passes through the filter wall 22, the filter wall 22 can absorb part of the gas, and the other part that is not absorbed enters another air passage 21 through the filter wall 22. By setting the material and structure of the filter wall 22, harmful components in the gas can be selectively adsorbed (as described below), and other components can enter the adjacent air duct 21 after passing through the filter wall 22, and finally leave the air filter device from the outlet 12.

[0035] Through the above technical solution, when the gas passes through the air duct 21, the harmful components therein will be continuously adsorbed by the filter wall 22 around the air duct 21. The air duct 21 has a blocking wall 23 and a filter wall 22, so that the gas in one air duct 21 can enter another air duct 21 through at least the filter wall 22 before leaving the air filter device through the air outlet 12. It can also effectively extend the path for the gas entering the air filter device to pass through, thereby improving the air filter device's adsorption effect on harmful components in the gas, so that the quality of the air after being filtered by the air filter device can reach the ppb (parts per billion) level.

[0036] In addition, the air filter device in the present disclosure can be a disposable product, and its replacement cycle can be 30,000 kilometers to 50,000 kilometers. The replaced air filter device can be recycled and processed to reduce pollution to the environment.

[0037] It should be noted that the filter wall 22 may be composed of an aluminum base and activated carbon attached to the aluminum base. The ratio of the aluminum base to the activated carbon may be adjusted according to filtering requirements. Here, the activated carbon is used to adsorb harmful components in the gas, and the harmful components may be ozone (O 3 ), nitrogen oxides (NO x ), sulfur dioxide (SO 2 ), ammonia (NH 3 ), hydrocarbons (HC), toluene (C 7 H 8) or a mixture thereof, the function of the aluminum base is to construct the shape of the filter element 2, so that the filter element 2 as a whole has a certain support, to prevent it from collapsing and blocking the airway 21, which makes it difficult for the gas to pass through. The material of the filter wall 22 can also be a molecular sieve (a hydrated aluminosilicate microporous crystal), which is not limited in the present disclosure. In addition, the material of the blocking wall 23 can also be aluminum, so that the gas cannot pass through the blocking wall 23.

[0038] Furthermore, if Figure 5 and Figure 6 As shown, the air passage 21 can be a straight channel extending from the air inlet 11 to the air outlet 12. In this way, compared with a curved and complex shape, a straight channel can facilitate the manufacture of the filter element 2 and reduce the manufacturing cost.

[0039] According to one embodiment of the present disclosure, Figures 3 to 6 As shown, the blocking wall 23 can be arranged at the end of the airway 21, and the blocking walls 23 of two adjacent airways 21 can be arranged at opposite ends. In this way, the path of gas flowing in the airway 21 can be effectively extended, and the contact area with the filter wall 22 can be increased, thereby improving the filtering efficiency of the filter element 2 for harmful gases.

[0040] According to one embodiment of the present disclosure, Figure 5 As shown, the air filter device may further include a filler 3, which is disposed between the filter element 2 and the housing 1 and is used to limit the filter element 2 to prevent the filter element 2 from moving in the housing 1 and affecting the filtering effect of the gas. The filler 3 may be a hydrophobic cotton or a foam material, which is not limited in the present disclosure.

[0041] According to the above technical solution, if Figures 1 to 6 As shown, the present disclosure also provides an air filtration system, which may include a first air intake pipe 4, an air filter 5 and an air filter device 6. Among them, the first air intake pipe 4 can be used to connect the fuel cell, the air filter 5 can be arranged at one end of the first air intake pipe 4 away from the fuel cell, and the air filter device 6 can be arranged on the first air intake pipe 4 and located downstream of the air filter 5. Here, the distance between the air filter device 6 and the air intake port of the fuel cell can be no less than 500mm. The air filter 5 can be a traditional air filter for filtering dust and gravel, and the air filter device 6 can be the air filter device mentioned above. The air filter 5 can firstly adsorb impurities such as dust and gravel in the gas, and after the gas is roughly filtered, it enters the air filter device 6 through the first air intake pipe 4. In this way, the service life of the air filter device 6 can be effectively extended, the maintenance and replacement frequency of the air filter device 6 can be reduced, and the maintenance cost can be reduced.

[0042] Furthermore, if Figures 1 to 3As shown, the first air intake pipe 4 may include a first section 41 and a second section 42, one end of the first section 41 may be connected to the air filter 5, and the other end may be connected to the air inlet 11 of the air filter 6, one end of the second section 42 may be connected to the air outlet 12 of the air filter 6, and the other end may be used to connect to the fuel cell. In this way, when the air filter 6 needs to be replaced or repaired, it can be directly removed and replaced. After replacement, only the two ends of the air filter 6 need to be connected to the first section 41 and the second section 42 respectively, without disassembling other components, and installation and replacement are time-saving and labor-saving. The gas flow may be to first enter the first section 41 in the first air intake pipe 4 after adsorbing dust and impurities through the air filter 5, then enter the second section 42 in the first air intake pipe 4 after filtering out harmful gases through the air filter 6, and finally enter the fuel cell. The air filter 6 may be connected to the first section 41 and the second section 42 respectively through the clamp 7, and the first air intake pipe 4 may be a stainless steel pipeline or a steel wire hose, which is not limited in the present disclosure. The clamp 7 may be a worm gear clamp, which may provide high connection pressure and high tightening torque, so that the connection between the air filter device 6 and the first air intake pipe 4 is more firm and reliable, and may also ensure good air tightness.

[0043] According to one embodiment of the present disclosure, Figure 1 As shown, the air filter 5 may be connected to a second air intake pipe 8, which is connected to the air filter 5 and located upstream of the air filter 5, and the air intake end of the second air intake pipe 8 is arranged above the air filter 5. The second air intake pipe 8 is a high-position air intake end, which can effectively extend the air intake pipeline, and at the same time, its air intake port is arranged at a higher position, which can also effectively prevent water from entering the air filter 5, thereby improving the service life of the air filter 5.

[0044] Based on the above scheme, the present disclosure also provides a vehicle, which includes a fuel cell and the above-mentioned air filtration system. The air filtration system can be connected upstream of the fuel cell, and the vehicle has all the beneficial effects of the above-mentioned air filtration system, which will not be repeated here.

[0045] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0046] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0047] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An air filter device, characterized in that: include: The housing is formed with a hollow accommodating cavity, wherein the accommodating cavity is respectively provided with an air inlet and an air outlet; and A filter element is arranged in the accommodating cavity, and the filter element includes a plurality of air passages arranged side by side, and the air passages extend in a direction opposite to the air inlet and the air outlet, wherein adjacent air passages are separated by filter walls, and the filter walls can selectively allow part of the gas to pass through, and blocking walls are arranged in the air passages, and the blocking walls in adjacent air passages are staggered in the extension direction of the air passages.

2. The air filter device according to claim 1, characterized in that: The air passage is a straight channel extending from the air inlet to the air outlet.

3. The air filter device according to claim 1, characterized in that: The blocking wall is arranged at the end of the air passage, and the blocking walls of two adjacent air passages are arranged at two opposite ends respectively.

4. The air filter device according to claim 1, characterized in that: The filter wall comprises an aluminum base and activated carbon attached to the aluminum base.

5. The air filter device according to any one of claims 1 to 4, characterized in that: The air filter device further comprises a filling piece, which is arranged between the filter element and the housing and is used to limit the position of the filter element.

6. An air filtration system, characterized in that: include: A first air intake pipe, the first air intake pipe is used to connect to a fuel cell; An air filter is arranged at an end of the first air intake pipe away from the fuel cell; and An air filter device is arranged on the first air intake pipe and is located downstream of the air filter. The air filter device is the air filter device according to any one of claims 1 to 5.

7. The air filtration system according to claim 6, characterized in that: The first air inlet pipe comprises: A first section, one end of which is connected to the air filter and the other end of which is connected to the air inlet of the air filter device; and The second section has one end connected to the air outlet of the air filter device and the other end used to connect to the fuel cell.

8. The air filtration system according to claim 7, characterized in that: The air filter device is connected to the first section and the second section via clamps respectively.

9. The air filtration system according to claim 6, characterized in that: The air filter is connected to a second air intake pipe, the second air intake pipe is connected to the air filter and is located upstream of the air filter, and an air intake end of the second air intake pipe is arranged above the air filter.

10. A vehicle, characterized in that: The invention comprises a fuel cell and an air filtration system according to any one of claims 6 to 9.

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