Air filter for fuel cell engine

Abstract

The utility model discloses an air filter for fuel cell engine, including casing, apron, air filter core, air outlet piece and sealing element, the casing is equipped with air inlet, air filter core sets up in casing, just air filter core is adjacent air inlet setting, for filtering the gas from air inlet, air outlet piece sets up one end of air filter core through sealing element, and air outlet piece is used for the filtered gas to pass, the apron sets up on casing, is used for with air filter core covers and encloses in casing. The utility model discloses an air filter for fuel cell engine, and its structure arrangement is reasonable, and the connecting place of air outlet piece and air filter core is provided with sealing element, and the sealing performance is good, can guarantee the cleanliness after air filtration.

Description

Technical Field

[0001] This utility model belongs to the field of air filter technology, specifically relating to an air filter for a fuel cell engine. Background Technology

[0002] In rail transit fuel cell engine systems, air filtration primarily relies on the air filter at the very beginning of the air path. However, due to manufacturing processes, traditional air filters are prone to poor sealing, leading to reduced filtration efficiency and making it difficult to achieve the required air cleanliness level of less than 100μm for the fuel cell stack. If the air cleanliness fails to meet this requirement, fine particles will travel through the pipes into the air compressor and fuel cell stack, causing increased wear and reduced lifespan of the air compressor and blockage of the fuel cell stack's airflow channels, resulting in irreversible damage to the stack.

[0003] Currently, there is a lack of a new type of air filter for fuel cell engines to ensure the cleanliness of the filtered air.

[0004] Therefore, a new technology is needed to address the lack of a novel air filter for fuel cell engines in existing technologies. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides an air filter for a fuel cell engine that ensures the cleanliness of the filtered air.

[0006] The present invention adopts the following technical solution:

[0007] An air filter for a fuel cell engine includes a housing, a cover plate, an air filter element, an air outlet, and a seal. The housing has an air inlet. The air filter element is disposed in the housing and adjacent to the air inlet for filtering gas from the air inlet. The air outlet is disposed at one end of the air filter element through the seal and is used to allow filtered gas to pass through. The cover plate is disposed on the housing for sealing the air filter element within the housing.

[0008] Furthermore, the cover plate is hinged to the housing in a flip-up manner.

[0009] Furthermore, the sealing element is a silicone gasket; the air outlet element is connected to one port of the air filter element through the silicone gasket.

[0010] Furthermore, the cover plate is provided with a clamping plate for pressing the air filter element.

[0011] Furthermore, the cover plate is also provided with a reinforcing plate for strengthening the clamping plate.

[0012] Furthermore, the cover plate is placed on the housing, and the clamping plate abuts against one end of the air filter element to further seal and tighten the silicone gasket at the other end of the air filter element.

[0013] Furthermore, the cover plate is provided with a handle.

[0014] Furthermore, the air outlet component is an elbow fitting, one end of which is connected to the air filter element through the sealing element, and the other end of which is used to connect to the air compressor and / or the electric stack.

[0015] Furthermore, the air inlet is a grille-type air inlet.

[0016] Furthermore, the air filter element is a cylindrical body composed of a mesh filter cloth and adsorbent particles; the cylindrical body has an inner cavity, and the air outlet is connected to the inner cavity; the side of the cylindrical body is arranged facing the air inlet; the gas from the air inlet passes through the side of the cylindrical body, enters the inner cavity, and then flows to the air outlet.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention relates to an air filter for a fuel cell engine. It is typically positioned at the very beginning of the air path in the fuel cell engine system. Air enters the air filter element through the air inlet, where harmful components (such as sulfides and carbon monoxide) and dust are filtered out. The resulting clean air then enters the air compressor and fuel cell stack through the air outlet. This air filter for a fuel cell engine features a rational structural arrangement, with a sealing element at the connection between the air outlet and the air filter element, ensuring good sealing performance and guaranteeing the cleanliness of the filtered air, which is beneficial for the normal operation of the air compressor and fuel cell stack. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] Figure 1 This is a three-dimensional schematic diagram of the air filter of this utility model;

[0021] Figure 2 This is a sectional view of the air filter elevation;

[0022] Figure 3 yes Figure 2 A schematic diagram of a medium-sized air filter.

[0023] Figure label:

[0024] 1-Air filter;

[0025] 2-Housing; 21-Air inlet;

[0026] 3-Cover plate; 31-Pressure plate; 32-Reinforcing plate; 33-Handle;

[0027] 4-Air filter element; 41-Inner cavity;

[0028] 5-Air outlet component;

[0029] 6-Seals. Detailed Implementation

[0030] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0031] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0032] Reference Figures 1 to 3 An air filter 1 for a fuel cell engine includes a housing 2, a cover plate 3, an air filter element 4, an air outlet 5, and a seal 6. The housing 2 has an air inlet 21. The air filter element 4 is disposed in the housing 2 and is disposed adjacent to the air inlet 21 for filtering gas from the air inlet 21. The air outlet 5 is disposed at one end of the air filter element 4 through the seal 6 and is used to allow filtered gas to pass through. The cover plate 3 is disposed on the housing 2 for sealing the air filter element 4 in the housing 2.

[0033] Reference Figure 1 In one embodiment, the cover plate 3 is hinged to the housing 2 in a flip-out manner.

[0034] Reference Figures 1 to 3 In one embodiment, the sealing element 6 is a silicone gasket; the air outlet element 5 is connected to one port of the air filter element 4 through the silicone gasket.

[0035] Reference Figures 1 to 3In one embodiment, the cover plate 3 is provided with a clamping plate 31 for pressing the air filter element 4.

[0036] Reference Figure 1 In one embodiment, the cover plate 3 is further provided with a reinforcing plate 32 for reinforcing the clamping plate 31.

[0037] Reference Figure 2 In one embodiment, the cover plate 3 is placed on the housing 2, and the pressing plate 31 abuts against one end of the air filter element 4 to further seal and press the silicone gasket at the other end of the air filter element 4.

[0038] Reference Figure 1 In one embodiment, the cover plate 3 is provided with a handle 33.

[0039] In one embodiment, the air outlet component 5 is a pipe.

[0040] Reference Figure 2 Preferably, the air outlet component 5 is an elbow pipe, one end of which is connected to the air filter element 4 through the sealing element 6, and the other end of which is used to connect to the air compressor and / or the electric stack.

[0041] Reference Figure 2 In one embodiment, the elbow fitting portion is located within the housing 2.

[0042] Reference Figure 1 In one embodiment, the air inlet 21 is a grille-type air inlet.

[0043] Reference Figures 1 to 3 In one embodiment, the air filter element 4 is a cylindrical body composed of a mesh filter cloth and adsorbent particles, which is beneficial to improving the filtration capacity of the air filter 1; the cylindrical body has an inner cavity 41, and the air outlet 5 communicates with the inner cavity 41; the side of the cylindrical body is arranged facing the air inlet 21; the gas from the air inlet 21 passes through the side of the cylindrical body, enters the inner cavity 41, and then flows to the air outlet 5, and finally flows to the air compressor and fuel cell stack.

[0044] Reference Figures 1 to 3In one embodiment, the air filter 1 of this invention has a cover plate 3 connected to the housing 2 via a hinge, and the cover plate 3 can be opened and closed. After opening the cover plate 3, the air filter element 4 can be disassembled and installed. When installing the air filter element 4, the front end of the air filter element 4 is inserted into the air outlet component 5, and the silicone gasket will clamp the air outlet component 5. Then, the cover plate 3 is closed. After the cover plate 3 is closed, the pressing plate 31 will press the air filter element 4 forward, making the end face of the silicone gasket at the front end of the air filter element 4 more tightly connected to the mating surface, thereby improving the sealing effect at the connection between the air filter element 4 and the air outlet component 5, thus ensuring the cleanliness of the filtered air. This invention only needs to satisfy the sealing of one mating surface to achieve the sealing of the entire air filter 1, and the sealing effect is better due to the pressure of the pressing plate 31. The air filter 1 of this invention is easy to install and replace, and has higher operability.

[0045] In one embodiment, the air filter 1 of this utility model has an overall length of 920mm, a width of 240mm, and a height of 200mm. Its structure is more compact, and compared to traditional air filters, the air filter of this utility model is approximately 20% smaller in volume. Air filters are the most important air filtration devices in fuel cell engine systems. However, in rail transit systems, due to space limitations, the space for arranging air filters is limited, and air filters that are too large are difficult to arrange reasonably in rail transit systems. With the advent of this utility model, its more compact structure and smaller size make it easier to apply this air filter to rail transit fuel cell engine systems.

[0046] In one embodiment, the filter element area of ​​a conventional air filter is approximately 2642 cm². 2 The filter element area of ​​the air filter 1 of this utility model is increased by 25% compared with the traditional one, so that the air filter 1 of this utility model has a sufficiently large filter element area and improves the filtration capacity of the air filter 1.

[0047] Preferably, the air filter 1 of this utility model has a more compact structure and a smaller volume, while ensuring that the filter element area is large enough.

[0048] Other aspects of the air filter for a fuel cell engine described in this utility model are found in the prior art and will not be repeated here.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An air filter for a fuel cell engine, characterized by, The device includes a housing, a cover plate, an air filter element, an air outlet component, and a seal. The housing has an air inlet. The air filter element is disposed in the housing and adjacent to the air inlet for filtering gas from the air inlet. The air outlet component is disposed at one end of the air filter element through the seal, and the air outlet component is used to allow filtered gas to pass through. The cover plate is disposed on the housing for sealing the air filter element inside the housing.

2. An air cleaner for a fuel cell engine according to claim 1, wherein The cover plate is hinged to the housing in a flip-up manner.

3. An air cleaner for a fuel cell engine according to claim 1, wherein The sealing element is a silicone gasket; the air outlet element is connected to one port of the air filter element through the silicone gasket.

4. An air cleaner for a fuel cell engine according to claim 3, wherein The cover plate is provided with a clamping plate for pressing the air filter element.

5. An air filter for a fuel cell engine according to claim 4, wherein The cover plate is also provided with a reinforcing plate for strengthening the clamping plate.

6. An air cleaner for a fuel cell engine according to claim 4, wherein The cover plate is placed on the housing, and the clamping plate abuts against one end of the air filter element to further seal and tighten the silicone gasket at the other end of the air filter element.

7. An air cleaner for a fuel cell engine according to claim 1, wherein The cover plate is equipped with a handle.

8. An air cleaner for a fuel cell engine according to claim 1, wherein The air outlet component is an elbow fitting, one end of which is connected to the air filter element through the sealing element, and the other end of which is used to connect to the air compressor and / or fuel cell stack.

9. An air cleaner for a fuel cell engine according to claim 1, wherein The air inlet is a grille-type air inlet.

10. An air filter for a fuel cell engine according to any one of claims 1 to 9, characterized in that The air filter element is a cylindrical body composed of a mesh filter cloth and adsorbent particles; the cylindrical body has an inner cavity, and the air outlet is connected to the inner cavity; the side of the cylindrical body is arranged facing the air inlet.

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