High-efficiency low-resistance fiber layer air filter element for high-speed rail

Abstract

The utility model relates to a high-efficiency low-resistance fiber layer air filter element for a high-speed rail, which comprises a coarse impurity filter screen layer, and a plurality of arrayed clamping grooves are formed in the side wall of the coarse impurity filter screen layer; the coarse impurity filter screen layer is provided with a clamping groove, the fine impurity filter screen layer is arranged on the face, provided with the clamping groove, of the coarse impurity filter screen layer, the fine impurity filter screen layer and the coarse impurity filter screen layer are used for filtering air, and the coarse impurity filter screen layer, the clamping groove, the fine impurity filter screen layer, the connecting protrusions, the first through holes and the second through holes are used; according to the filter element, the adjoining property of connection between the coarse impurity filter screen layer and the fine impurity filter screen layer can be better improved by increasing the contact area, the risk of cracking between the coarse impurity filter screen layer and the fine impurity filter screen layer is greatly reduced, and meanwhile, the filtering permeability can be improved and the resistance can be reduced while the filtering efficiency is improved; the filtering efficiency and sufficiency are favorably improved, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of new materials technology for high-speed rail, and in particular to a high-efficiency, low-resistance fiber layer air filter core for high-speed rail. Background Technology

[0002] Fiber layer air filter core is a key component used to filter dust and impurities in the air. Fiber layer air filter core can be used in the air conditioning equipment on high-speed trains to filter the air entering the air conditioning equipment, which helps to improve the cleanliness of the high-speed train interior, prevent air with more impurities from entering the high-speed train interior and causing serious pollution, and at the same time help to improve the cleanliness and service life of the air conditioning equipment.

[0003] A search revealed Chinese patent CN207203653U, which discloses a high-efficiency, low-resistance fiber layer air filter core for high-speed rail. This core is composed of a fine impurity filter layer and a coarse fiber mesh layer, which are gradient-layered, needle-punched, and thermally bonded. The fiber layers of this high-efficiency, low-resistance fiber layer air filter core have a three-dimensional cross-linked structure. The fine impurity filter layer has a density of 50-200 g / m², and the coarse fiber mesh layer also has a density of 50-200 g / m². The fibers in this high-efficiency, low-resistance fiber layer air filter core have been transformed from a two-dimensional distribution to a three-dimensional cross-linked structure, and the mesh pores are more uniform. This significantly improves the particulate matter interception efficiency while minimally increasing the resistance. It exhibits both extremely low resistance and remarkably high filtration efficiency, making it particularly suitable for the high-speed rail field.

[0004] This patent only improves filtration efficiency, but it cannot improve the connection effect between filter layers by increasing the connection surface area. During long-term use, the filter element is prone to cracking between the fine and coarse fiber mesh, which is not conducive to improving the service life of the filter element. At the same time, it cannot improve filtration efficiency while also improving filtration permeability and reducing resistance. It is easy for the filter element to become clogged and reduce permeability, which is not conducive to improving filtration efficiency and sufficiency. Utility Model Content

[0005] Existing patents only improve filtration efficiency but cannot enhance the connection between filter layers by increasing the connection surface area. This leads to problems such as cracking between the fine and coarse fiber meshes during prolonged use, which shortens the filter core's lifespan. Furthermore, these patents cannot simultaneously improve filtration efficiency while also increasing permeability and reducing resistance, leading to filter core clogging and reduced permeability. Therefore, this invention provides a high-efficiency, low-resistance fiber layer air filter core for high-speed rail applications.

[0006] The technical solution adopted in this utility model is: a high-efficiency, low-resistance fiber layer air filter core for high-speed rail, comprising:

[0007] A coarse impurity filter layer, wherein the sidewall of the coarse impurity filter layer is provided with a plurality of slots arranged in a row;

[0008] A fine impurity filter layer is installed on the side of the coarse impurity filter layer where the slots are formed. The fine impurity filter layer and the coarse impurity filter layer are used to filter air. The side wall of the fine impurity filter layer is fixedly equipped with connecting protrusions that are respectively inserted into each of the slots. The connecting protrusions and the slots are used to increase the connection area between the coarse impurity filter layer and the fine impurity filter layer.

[0009] Furthermore, the coarse impurity filter layer has multiple through holes I inside, and the fine impurity filter layer has multiple through holes II inside. The through holes I and the through holes II are used to improve the permeability of the coarse impurity filter layer and the fine impurity filter layer.

[0010] Furthermore, an outer filter layer is bonded to the side of the coarse impurity filter layer that is away from the fine impurity filter layer.

[0011] Furthermore, the outer filter layer has multiple filter grooves arranged in a row on the side away from the coarse impurity filter layer.

[0012] Furthermore, the coarse impurity filter layer and the fine impurity filter layer are made by needle punching or thermal bonding processes.

[0013] Furthermore, the coarse impurity filter layer and the fine impurity filter layer are made of flame-retardant synthetic fibers.

[0014] The beneficial effects of this utility model are:

[0015] This invention, through the design of a coarse impurity filter layer, a slot, a fine impurity filter layer, and a connecting protrusion, can improve the tightness of the connection between the coarse and fine impurity filter layers by increasing the contact area. This greatly reduces the risk of cracking between the coarse and fine impurity filter layers and helps to extend the service life of the filter element.

[0016] Secondly, by setting up a coarse impurity filter layer, a slot, a fine impurity filter layer, a connecting protrusion, a through hole one, and a through hole two, this utility model can improve filtration efficiency while also improving filtration permeability and reducing resistance. This is beneficial for improving filtration efficiency and completeness, and can reduce the frequency of cleaning and unclogging the filter element. Attached Figure Description

[0017] Figure 1 This is a cross-sectional front view of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional right view of the structure of this utility model;

[0019] Figure 3 This is a front view structural diagram of the present invention;

[0020] Figure 4 This is the utility model Figure 3 A magnified structural diagram of A in the diagram.

[0021] The markings in the diagram are: 1. Coarse impurity filter layer; 2. Slot; 3. Fine impurity filter layer; 4. Connecting protrusion; 5. Through hole one; 6. Through hole two; 7. Outer filter layer; 8. Filter tank. Detailed Implementation

[0022] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described below.

[0025] In order to solve the problems existing in the background technology, this application proposes the following technical solution: a high-efficiency low-resistance fiber layer air filter core for high-speed rail.

[0026] The specific technical solution includes a coarse impurity filter layer 1 and a fine impurity filter layer 3;

[0027] like Figure 1-4As shown, the coarse impurity filter layer 1 has multiple slots 2 arranged in a row on its side wall. The coarse impurity filter layer 1 can filter larger impurities in the air. The multiple slots 2 can engage with multiple connecting protrusions 4, facilitating the connection between the connecting protrusions 4 and the coarse impurity filter layer 1. The fine impurity filter layer 3 is installed on the side of the coarse impurity filter layer 1 with the slots 2. The fine impurity filter layer 3 can filter smaller impurities in the air. The fine impurity filter layer 3 and the coarse impurity filter layer 1 are used to filter the air. The side wall of the fine impurity filter layer 3 is fixedly equipped with connecting protrusions 4, which are respectively inserted into each slot 2. The connecting protrusions 4 can connect with the slots 2, and the connecting protrusions 4 can drive the fine impurity filter layer 3 to connect with the slots 2. The protrusion 4 and the slot 2 are used to increase the connection area between the coarse impurity filter layer 1 and the fine impurity filter layer 3. The coarse impurity filter layer 1 and the fine impurity filter layer 3 are made by needle punching or thermal bonding. The needle punching or thermal bonding process can facilitate the connection between the coarse impurity filter layer 1 and the fine impurity filter layer 3, and at the same time, it can fix the connection between the protrusion 4 and the slot 2. The material used for the coarse impurity filter layer 1 and the fine impurity filter layer 3 is flame-retardant synthetic fiber. The flame-retardant synthetic fiber is made of electrostatic electret meltblown nonwoven fabric material. This material is made of polypropylene fiber. Through electrostatic charging treatment, the fiber diameter can be between 2 and 5 μm, which can better filter the small particles in the air. Moreover, the flame-retardant synthetic fiber is lightweight, which makes it easier to reduce resistance.

[0028] The side of the coarse impurity filter layer 1 with the slots 2 faces the side of the fine impurity filter layer 3 with the connecting protrusions 4. Each connecting protrusion 4 is inserted into the slot 2, and the connecting protrusion 4 is connected to the slot 2 by needle punching or thermal bonding. The connection between each slot 2 and each connecting protrusion 4 can significantly increase the contact area between the coarse impurity filter layer 1 and the fine impurity filter layer 3. After the coarse impurity filter layer 1 and the fine impurity filter layer 3 are connected, they are then bent towards the fine impurity filter layer 3 and placed into the filter cartridge. Each slot 2 is pressed inward and presses against the connecting protrusion 4. The mutual pressing between the slot 2 and the connecting protrusion 4 can significantly increase the friction between the coarse impurity filter layer 1 and the fine impurity filter layer 3, which can prevent the coarse impurity filter layer 1 and the fine impurity filter layer 3 from cracking rapidly.

[0029] like Figure 1-2 As shown, the coarse impurity filter layer 1 has multiple through holes 5 inside, which can increase the permeability of the coarse impurity filter layer 1. The fine impurity filter layer 3 has multiple through holes 6 inside, which can increase the permeability of the fine impurity filter layer 3. Through holes 5 and through holes 6 are used to improve the permeability of the coarse impurity filter layer 1 and the fine impurity filter layer 3.

[0030] When the coarse impurity filter layer 1 and the fine impurity filter layer 3 filter the air, the filtered air can flow through through hole 5 and through hole 6. Through hole 5 and through hole 6 can reduce the resistance of the filtered air flow, which is conducive to the rapid flow of air and can prevent impurities in the air from quickly clogging the coarse impurity filter layer 1 and the fine impurity filter layer 3.

[0031] like Figure 1-2 and Figure 4 As shown, an outer filter layer 7 is bonded to the side of the coarse impurity filter layer 1 away from the fine impurity filter layer 3. The outer filter layer 7 can perform the first filtration of the air and prevent larger particles from entering the interior of the coarse impurity filter layer 1 and clogging it.

[0032] like Figure 4 As shown, the outer filter layer 7 has multiple filter grooves 8 arranged on the side away from the coarse impurity filter screen layer 1. The filter grooves 8 can easily adsorb larger particles, and facilitate air to enter the outer filter layer 7 from the protruding structure between adjacent filter grooves 8, which is conducive to rapid air circulation.

[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A high-efficiency, low-resistance fiber layer air filter core for high-speed rail, characterized in that, include: A coarse impurity filter layer (1) has multiple slots (2) arranged in a row on its sidewall. A fine impurity filter layer (3) is installed on the side of the coarse impurity filter layer (1) where the slots (2) are provided. The fine impurity filter layer (3) and the coarse impurity filter layer (1) are used to filter air. The side wall of the fine impurity filter layer (3) is fixedly provided with connecting protrusions (4) that are respectively inserted into each of the slots (2). The connecting protrusions (4) and the slots (2) are used to increase the connection area between the coarse impurity filter layer (1) and the fine impurity filter layer (3).

2. The high-efficiency low-resistance fibrous-layer air filter core for high-speed trains according to claim 1, characterized in that, The coarse impurity filter layer (1) has multiple through holes (5) inside, and the fine impurity filter layer (3) has multiple through holes (6) inside. The through holes (5) and the through holes (6) are used to improve the permeability of the coarse impurity filter layer (1) and the fine impurity filter layer (3).

3. The high efficiency low resistance fibrous layer air filter core for high speed trains according to claim 2, characterized in that, An outer filter layer (7) is bonded to the side of the coarse impurity filter layer (1) away from the fine impurity filter layer (3).

4. The high efficiency low resistance fibrous layer air filter core for high speed trains according to claim 3, characterized in that, The outer filter layer (7) has multiple filter grooves (8) arranged on the side away from the coarse impurity filter layer (1).

5. The high-efficiency, low-resistance fiber layer air filter core for high-speed rail according to claim 4, characterized in that, The coarse impurity filter layer (1) and the fine impurity filter layer (3) are made by needle punching or thermal bonding processes.

6. The high efficiency low resistance fibrous layer air filter core for high speed trains according to claim 5, characterized in that, The coarse impurity filter layer (1) and the fine impurity filter layer (3) are made of flame-retardant synthetic fiber.

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