CN221277892U

CN221277892U - Primary filter assembly, air filter mechanism and vehicle

Info

Publication number: CN221277892U
Application number: CN202323361736.5U
Authority: CN
Inventors: 金建立; 董琪; 陈增辉
Original assignee: Weishi Energy Technology Co Ltd
Current assignee: Weishi Energy Technology Co Ltd
Priority date: 2023-12-11
Filing date: 2023-12-11
Publication date: 2024-07-05
Anticipated expiration: 2033-12-11

Abstract

The application relates to a preliminary filter assembly, an air filtering mechanism and a vehicle, wherein the preliminary filter assembly comprises: a first tube section, a centrifugal separation structure, and a second tube section; the first end of the first pipe section is an air inlet, the second end of the first pipe section is connected with the inlet of the centrifugal separation structure, the outlet of the centrifugal separation structure is communicated with the first end of the second pipe section, and the axis of the first pipe section and the axis of the second pipe section are arranged at an angle; the centrifugal separation structure is provided with a centrifugal separation flow passage, and a particulate matter discharge hole is arranged on the wall surface of the centrifugal separation structure. The technical scheme of the application effectively solves the problem that the air filter in the prior art is large in load and needs to be replaced frequently.

Description

Primary filter assembly, air filter mechanism and vehicle

Technical Field

The application relates to the technical field of air filtration, in particular to a primary filter assembly, an air filtering mechanism and a vehicle.

Background

In the prior art, a great amount of air is required to be inhaled into the engine, and the air is filtered through an air filter, so that the engine is prevented from being damaged.

When a hydrogen fuel cell powered by hydrogen fuel is used, air and hydrogen gas are required to react to provide power. The air needs to be filtered through an air cleaner. However, under some conditions, the filtration load of the air cleaner is large, requiring frequent cleaning or replacement, avoiding a reduction in the life of the fuel cell.

Disclosure of utility model

The application provides a primary filter assembly, an air filtering mechanism and a vehicle, which are used for solving the problem that an air filter in the prior art is high in load and needs to be replaced frequently.

According to the present application there is provided a primary filter assembly comprising: a first tube section, a centrifugal separation structure, and a second tube section; the first end of the first pipe section is an air inlet, the second end of the first pipe section is connected with the inlet of the centrifugal separation structure, the outlet of the centrifugal separation structure is communicated with the first end of the second pipe section, and the axis of the first pipe section and the axis of the second pipe section are arranged at an angle; the centrifugal separation structure is provided with a centrifugal separation flow passage, and a particulate matter discharge hole is arranged on the wall surface of the centrifugal separation structure.

Further, the centrifugal separation structure comprises a separation shell, and the inner wall of the separation shell is a vortex structure so as to form a centrifugal separation flow channel.

Further, the separation housing comprises a first separation housing section and a second separation housing section, the first separation housing section is connected with the first pipe section, the second separation housing section is connected with the second pipe section, the inner diameter of the first separation housing section is gradually increased along the flowing direction of gas, the inner diameter of the second separation housing section is gradually reduced, the inner diameter of the inlet of the second separation housing section is larger than the inner diameter of the second pipe section, and the inner diameter of the outlet of the second separation housing section is identical to the inner diameter of the second pipe section.

Further, the inner diameter of the second tube section is larger than the inner diameter of the first tube section.

Further, the inner diameter of the second pipe section is D, and the inner diameter of the first pipe section is D, wherein D is more than or equal to 1.1D and less than 2D.

Further, the arcuate swirl connected to the inner side of the first separation housing segment in a direction perpendicular to the axis of the second separation housing segment.

Further, the number of the particulate matter discharge holes is plural, and the diameter of each particulate matter discharge hole is between 1.3mm and 3.6 mm.

Further, in the region where the particulate matter discharge hole is provided, the area of the particulate matter discharge hole occupies 0.12 to 0.35 of the region.

According to another aspect of the present application, there is provided an air cleaner mechanism comprising: the filter assembly is connected to the outlet of the primary filter assembly, and the primary filter assembly is the primary filter assembly.

According to another aspect of the present application, there is also provided a vehicle including a vehicle body and an air cleaner mechanism connected to the vehicle body, the air cleaner mechanism being the air cleaner mechanism described above.

By adopting the technical scheme, air enters the first pipe section, enters the centrifugal separation structure through the first pipe section, and particles in the air are thrown out of the particle discharge hole through centrifugal force under the action of the centrifugal separation structure, so that magazine particles in the air can be primarily removed. The axis of first pipeline section and the axis of second pipeline section set up at an angle, and centrifugal separation structure sets up between first pipeline section and second pipeline section, can guarantee like this that gaseous inlet is in the high position, and the particulate matter discharge port sets up in the low position, and the granule is discharged easily, and rainwater etc. that gets into from the high position flows out easily through the particulate matter discharge port moreover. The technical scheme of the application effectively solves the problem that the air filter in the prior art is large in load and needs to be replaced frequently.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 shows a schematic front view of a primary filter assembly of an embodiment of the application;

FIG. 2 shows a schematic top view of the preliminary filter assembly of FIG. 1;

Fig. 3 shows a schematic structural view of the centrifugal separation structure of the preliminary filter assembly of fig. 1.

Wherein the above figures include the following reference numerals:

10. A first pipe section; 20. a centrifugal separation structure; 21. centrifugally separating the flow channel; 22. a particulate matter discharge hole; 23. a first split housing section; 24. a second separation housing section; 25. an arc-shaped scroll guide surface; 30. a second pipe section.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 3, the preliminary filter assembly of the present embodiment includes: a first tube section 10, a centrifugal separation structure 20 and a second tube section 30. The first end of the first pipe section 10 is an air inlet, the second end of the first pipe section 10 is connected to the inlet of the centrifugal separation structure 20, the outlet of the centrifugal separation structure 20 is connected to the first end of the second pipe section 30, and the axis of the first pipe section 10 and the axis of the second pipe section 30 are arranged at an angle. The centrifugal separation structure 20 has a centrifugal separation flow path 21, and a particulate matter discharge hole 22 is provided in a wall surface of the centrifugal separation structure 20.

By applying the technical scheme of the embodiment, air enters the first pipe section 10, enters the centrifugal separation structure 20 through the first pipe section 10, and under the action of the centrifugal separation structure 20, particles in the air are thrown out of the particle discharge hole 22 through centrifugal force, so that magazine particles in the air can be primarily removed. The axis of the first pipe section 10 and the axis of the second pipe section 30 are arranged at an angle, and the centrifugal separation structure 20 is arranged between the first pipe section 10 and the second pipe section 30, so that the gas inlet can be ensured to be at a high position, the particulate matter discharge hole 22 is arranged at a low position, particulates are easy to discharge, and rainwater and the like entering from the high position easily flow out through the particulate matter discharge hole 22. The technical scheme of the embodiment effectively solves the problem that the air filter in the prior art is large in load and needs to be replaced frequently.

It should be noted that, the axis of the first pipe section 10 and the axis of the second pipe section 30 are disposed at an angle, and in this embodiment, the axis of the first pipe section 10 and the axis of the second pipe section 30 are disposed at an angle of 90 °. As other embodiments, other angles of the axis of the first tube segment 10 and the axis of the second tube segment 30 are possible, such as an axis of the first tube segment 10 and an axis of the second tube segment 30 disposed at an angle of 100 degrees, or an axis of the first tube segment 10 and an axis of the second tube segment 30 disposed at an angle of 80 degrees.

As shown in fig. 1 and 3, in the technical solution of the present embodiment, the centrifugal separation structure 20 includes a separation housing, and an inner wall of the separation housing is a vortex structure to form a centrifugal separation flow channel 21. The inner wall of the separation shell is of a vortex structure, so that the structure is firm, and the problems of local stress concentration and the like in the splicing condition are difficult to occur. It should be noted that, the centrifugal separation structure 20 is an injection molding integrated structure, so that the processing is convenient, and the centrifugal separation flow channel 21 is relatively smooth.

As shown in fig. 1 and 2, in the technical solution of the present embodiment, the separation housing includes a first separation housing segment 23 and a second separation housing segment 24, the first separation housing segment 23 is connected to the first pipe segment 10, the second separation housing segment 24 is connected to the second pipe segment 30, in the flowing direction of the gas, the inner diameter of the first separation housing segment 23 gradually increases, the inner diameter of the second separation housing segment 24 gradually decreases, the inner diameter of the inlet of the second separation housing segment 24 is larger than the inner diameter of the second pipe segment 30, and the inner diameter of the outlet of the second separation housing segment 24 is the same as the inner diameter of the second pipe segment 30. The inlet of the second separator housing section 24 has an inner diameter that is larger than the inner diameter of the second pipe section 30, which facilitates the entry of rainwater or the like into the second pipe section 30. The first pipe section 10 is provided with a rain cap, rainwater can also inevitably enter the primary filter assembly, the central shaft of the second separation housing section 24 and the central shaft of the second pipe section 30 are coaxially arranged, the inner diameter of the second separation housing section 24 from the inlet to the outlet gradually contracts, and the lowest point of the second separation housing section 24 is lower than the bottom of the second pipe section 30, so that a small amount of rainwater entering the filter assembly cannot enter the filter assembly through the second pipe section 30.

It will be appreciated that in the technical solution of the present embodiment, the axis of the first separation housing segment 23 is arranged vertically, and the axis of the second separation housing segment 24 is arranged horizontally, i.e. the axis of the first separation housing segment 23 and the axis of the second separation housing segment 24 form an angle of 90 °. The axis of the first separator housing section 23 is thus arranged coaxially with the axis of the first pipe section 10 and the axis of the second separator housing section 24 is arranged coaxially with the axis of the second pipe section 30. As a further embodiment, the axis of the first separation housing segment 23 is at an acute angle to the vertical and the axis of the second separation housing segment 24 is disposed horizontally, wherein the axis of the first separation housing segment 23 is still disposed coaxially with the axis of the first pipe segment 10 and the axis of the second separation housing segment 24 is still disposed coaxially with the axis of the second pipe segment 30. The other arrangements are similar and will not be described in detail herein.

The inlet of the centrifugal separation flow path 21 communicates with the second end of the first pipe section 10, and the second end of the second pipe section 30 communicates with the hydrogen fuel cell through the filter assembly. The axis of the first tube section 10 is disposed at 90 degrees to the axis of the second tube section 30. The centrifugal separation structure separates particles by rotating air so that the centrifugal force of the particles is different from the centrifugal force of the gas. The centrifugal separation structure 20 is provided with a particulate matter discharge hole 22, and the particulate matter discharge hole 22 is located on a side wall of a pipe structure of an air outlet path of the centrifugal separation structure 20. It is possible that the second tube section 30 is connected to the tubes of the filter assembly in a split or integrally formed configuration.

As shown in fig. 1 and 2, in the technical solution of the present embodiment, the inner diameter of the second pipe section 30 is larger than the inner diameter of the first pipe section 10. After the air enters the second tube section 30, the flow rate of the air gradually decreases, which is more advantageous for the next filtering step.

As shown in fig. 1 and 2, in the technical solution of the present embodiment, the inner diameter of the second pipe section 30 is D, and the inner diameter of the first pipe section 10 is D, where 1.1D is equal to or less than D < 2D. The arrangement of the above structure ensures that the diameter of the second pipe section 30 is larger than that of the first pipe section 10 on the one hand, and that the vortex is spiral on the other hand, when the vortex structure is provided, in the direction perpendicular to the axis of the second separation housing section 24, the arc-shaped vortex guiding surface 25 connected to the inner side of the first separation housing section 23 to the axis of the second separation housing section 24 can ensure that the vortex is spiral. The inner side of the first separation housing segment 23 is defined as the right lower end of the first pipe segment 10 in fig. 1. The depth of the swirl grooves may be such that the gas in the first pipe section 10 is guided entirely in a swirling flow. The above-mentioned arc-shaped vortex guide surface 25 is required in addition to the structure of the inner wall of the vortex groove, that is, one side of the centrifugal separation flow passage 21 is the wall surface of the centrifugal separation structure 20, and the other side is the arc-shaped vortex guide surface 25. The arc-shaped scroll guide surface 25 is provided separately, for example, by welding. The centrifugal separation flow passages 21 may be formed by injection molding, that is, the centrifugal separation structure 20 is provided with a convex-concave structure.

As shown in fig. 1, in the technical solution of the present embodiment, in the direction perpendicular to the axis of the second separation housing segment 24, the arc vortex connected to the inner side of the first separation housing segment 23 reaches the central axis of the second separation housing segment 24. The above structure makes the airflow stable, i.e. the vortex airflow rotates around the central axis of the second pipe section 30, and the airflow temperature of each part is not easy to interfere with the airflow quality inspection.

As shown in fig. 2 and 3, in the technical solution of the present embodiment, the number of the particulate matter discharge holes 22 is plural, and the diameter of each particulate matter discharge hole 22 is between 1.3mm and 3.6 mm. The above-mentioned diameter of the particulate matter discharge holes 22 does not cause excessive air loss, and can also discharge particulate matter out of the primary filter assembly. The particulate matter discharge hole 22 is circular, so that the processing is convenient, the particulate matter is easily separated from the gas by the combined action of the centrifugal force and the gravity, and the particulate matter easily leaves the centrifugal separation structure 20.

As shown in fig. 2 and 3, in the technical solution of the present embodiment, in the area where the particulate matter discharge hole 22 is provided, the area of the particulate matter discharge hole 22 occupies 0.12 to 0.35 of the area. Thus, the strength of the centrifugal separation structure 20 is ensured, and meanwhile, the separation effect of particles and impurities is also ensured to be good.

The application also provides an air filtering mechanism, which comprises: the filter assembly is connected to the outlet of the primary filter assembly, and the primary filter assembly is the primary filter assembly.

The application also provides a vehicle, which comprises a vehicle main body and an air filtering mechanism, wherein the air filtering mechanism is connected with the vehicle main body, and the air filtering mechanism is the air filtering mechanism. The vehicle may be an automobile, a train, a bicycle, a motorcycle, or an aircraft. The vehicle may be a hydrogen fuel cell vehicle.

The fuel cell air inlet system is generally composed of a high-level air guide channel, an air filter air inlet pipeline, an air filter air outlet pipeline, an air flow sensor, a fixed bracket and other parts, and has the main functions of providing clean and sufficient air for the fuel cell. High-order induced draft channel: directly connected with the air in the atmosphere to suck the air in the atmosphere. Air filter air inlet pipeline: the high-order induced draft duct is connected with the air filter and is used as an air circulation channel. An air cleaner: the filter element is provided for filtering particulate matters, NO ₂、SO₂, toluene, butane and the like in the air. An air outlet pipeline: the air filter is connected with the air compressor and is used as an air circulation channel. Air flow sensor: the fuel cell intake air amount is detected, and the intake air amount information is converted into an electric signal through connection of a circuit. And (3) fixing a bracket: parts of an air inlet system such as a high-order air guide duct, an air filter and the like are fixed on the whole vehicle. According to the technical scheme, the pre-filter (a preliminary filter assembly) is arranged in front of the air filter, and the main structure and functions of the pre-filter are as follows:

And (3) an air inlet: the air inlet of the prefilter can be directly provided with a rain cap, and a high-order air guide duct of an original air inlet system is canceled.

Swirl passage: the cyclone channel is of a concave groove structure, the rotation center is perpendicular to the direction of the air inlet, and after the air flow enters the prefilter under the action of pressure difference, the air flow moves rotationally along the cyclone channel, so that the main air flow with particles can rotate around the cyclone channel.

Particulate matter discharge hole: the particulate matter discharge hole sets up in the lateral wall of whirl passageway, and the air current of high-speed is rotatory around the whirl passageway, and particulate matter in the air current throws away the prefilter from particulate matter discharge hole 22 under centrifugal force effect, effectively reduces the particulate matter that gets into the main filter of air.

And (3) an air outlet: the main air flow is discharged from the prefilter from the opening and is connected with the air main filter through a pipeline.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be capable of being practiced otherwise than as specifically illustrated and described. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A preliminary filter assembly, comprising:

A first tube section (10), a centrifugal separation structure (20) and a second tube section (30);

the first end of the first pipe section (10) is an air inlet, the second end of the first pipe section (10) is connected with the inlet of the centrifugal separation structure (20), the outlet of the centrifugal separation structure (20) is communicated with the first end of the second pipe section (30), and the axis of the first pipe section (10) and the axis of the second pipe section (30) are arranged at an angle;

The centrifugal separation structure (20) is provided with a centrifugal separation flow passage (21), and a particulate matter discharge hole (22) is arranged on the wall surface of the centrifugal separation structure (20).

2. A primary filter assembly according to claim 1, wherein the centrifugal separation structure (20) comprises a separation housing, the inner wall of which is a swirl structure to form the centrifugal separation flow channel (21).

3. The primary filter assembly according to claim 2, wherein the separation housing comprises a first separation housing section (23) and a second separation housing section (24), the first separation housing section (23) being connected to the first pipe section (10), the second separation housing section (24) being connected to the second pipe section (30), the inner diameter of the first separation housing section (23) gradually increasing and the inner diameter of the second separation housing section (24) gradually decreasing in the direction of flow of the gas, the inner diameter of the inlet of the second separation housing section (24) being larger than the inner diameter of the second pipe section (30), the inner diameter of the outlet of the second separation housing section (24) being the same as the inner diameter of the second pipe section (30).

4. A primary filter assembly according to claim 3, wherein the inner diameter of the second tube section (30) is larger than the inner diameter of the first tube section (10).

5. The primary filter assembly according to claim 4, wherein the second tube section (30) has an inner diameter D and the first tube section (10) has an inner diameter D, wherein 1.1 d.ltoreq.d < 2D.

6. A primary filter assembly according to claim 3, characterized in that the inner side of the first separation housing segment (23) is connected with an arc-shaped vortex to the axis of the second separation housing segment (24) in a direction perpendicular to the axis of the second separation housing segment (24).

7. A primary filter assembly according to any one of claims 1 to 6, wherein the particulate discharge holes (22) are a plurality, each particulate discharge hole (22) having a diameter of between 1.3mm and 3.6 mm.

8. A primary filter assembly according to claim 7, characterized in that in the area where the particulate discharge holes (22) are provided, the area of the particulate discharge holes (22) is 0.12 to 0.35 of the area.

9. An air cleaner mechanism, the air cleaner mechanism comprising: a preliminary filter assembly and a filter assembly, the filter assembly being connected at an outlet of the preliminary filter assembly, the preliminary filter assembly being a preliminary filter assembly according to any one of claims 1 to 8.

10. A vehicle comprising a vehicle body and an air cleaner mechanism coupled to the vehicle body, the air cleaner mechanism being the air cleaner mechanism of claim 9.