CN214928846U

CN214928846U - Single-structure air filter

Info

Publication number: CN214928846U
Application number: CN202121266243.1U
Authority: CN
Inventors: 杨强; 杨汉卿; 毛嘉豪
Original assignee: Zhongche Tianjin Rail Transit Equipment Co ltd
Current assignee: Tianjin Zhongxin Rail Transit Equipment Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-11-30
Anticipated expiration: 2031-06-08

Abstract

The utility model relates to an air dust removal technical field discloses a unijunction structure air cleaner, including non-closed shell and the air filter core of fixed in the shell, shell both ends opening sets up in order to constitute air cleaner's air intake and air outlet, air filter core include with two the same and symmetry setting's of shell fixed connection's structure guide plate, two interval between guide plate and the shell lateral wall is crescent to air outlet one side by the air intake. The device can provide clean air with large granule thing, small particle thing and floater and air separation steadily, and overall structure is simple, and easy to assemble is practical.

Description

Single-structure air filter

Technical Field

The utility model relates to an air dust removal technical field, concretely relates to unistructure air cleaner.

Background

In the current society, rail transportation means mainly comprise transportation carriers such as diesel locomotives, electric locomotives, motor train units, high-speed rails, carriages of passenger cars and trucks, light rails, subways and the like, and road transportation means mainly comprise automobiles. Their normal operation requires the intake of a large amount of air to meet the requirements of combustion of the internal combustion engine, heat dissipation of electronic and mechanical components, and cooling of air conditioning and other facilities. Along with the suction of a large amount of air, a large amount of impurities such as sand, catkin, plant leaves, paper scraps, plastics and the like exist in the air, the impurities enter the air, the abrasion is caused to an internal combustion engine and the like, the service life of the internal combustion engine is shortened, and an air filter is required to be installed in an air supply channel in order to prevent the impurities from entering the air supply channel.

The existing air filter mostly adopts centrifugal force to separate impurities from air, and then filters through a filter element, thereby obtaining clean air. For example, cyclone filters operate on the principle of a device that uses centrifugal force to separate solid particles or liquid droplets from a gas stream. When the gas flow containing liquid or impurities enters the filter, the gas flow can generate strong vortex motion due to the design of the rotary vortex in the cyclone cylinder, so that strong centrifugal force is formed, and solid particles and liquid impurities are attached to the cyclone cylinder. The impurities are separated from the gas stream and accumulate in the dust zone of the vessel. The purified gas leaves the cyclone filter and enters one or more filter elements of the next stage to filter out small solid particles.

Above-mentioned air cleaner utilizes centrifugal force can filter great particulate matter impurity, play certain dust removal effect, but the structure is complicated, and occupation space is great, in addition, can't detach tiny dust of tiny particle or the less impurity of proportion (especially plant piece, catkin, flotage such as poplar wadding), especially in the season that floats heavy or the feather is more, a large amount of flocculent impurities get into, easily cause air cleaner to block, reduce air filter's life, influence the use of equipment such as internal-combustion engine simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a not enough to prior art exists, the utility model aims to provide a unistructure air cleaner, the device can provide clean air with large granule thing, little particulate matter and floater and air separation steadily, and overall structure is simple, and is easy to assemble practicality.

In order to achieve the above object, the present invention provides the following technical solutions:

a single-structure air filter comprises a non-closed shell and an air filter element fixed in the shell, wherein openings at two ends of the shell are arranged to form an air inlet and an air outlet of the air filter, the air filter element comprises two guide plates which are fixedly connected with the shell and have the same structure and are symmetrically arranged, and the distance between the two guide plates and the side wall of the shell is gradually increased from the air inlet to one side of the air outlet;

a dust removal channel is formed between the two guide plates, an air exhaust channel is formed between each guide plate and the side wall of the shell, air enters from the air inlet and passes through the dust removal channel to separate air containing impurities, and clean air enters the air exhaust channel through the guide plates and is exhausted through the air outlet.

The utility model discloses in, it is further, the guide plate includes the water conservancy diversion piece that a plurality of parallels and interval set up, forms the water conservancy diversion passageway between per two water conservancy diversion pieces, and clean air gets into the passageway of airing exhaust along the water conservancy diversion passageway.

The utility model discloses in, preferred, every distance between water conservancy diversion piece and the shell is crescent along the direction of air intake to air outlet.

The utility model discloses in, it is further, air filter is close to the one end of air outlet and is connected with two dust removal boards, two form the dust removal mouth between the dust removal board, the dust removal mouth with dust removal channel intercommunication, the air that contains magazine discharges back the atmosphere through the dust removal mouth after dust removal channel flows.

The utility model discloses in, it is preferred, water conservancy diversion piece axial cross-section is wing, the water conservancy diversion piece includes the flow guide face of outer convex and the water conservancy diversion face of level and smooth setting.

The utility model discloses in, it is further, the guide plate passes through the mounting bracket to be fixed on the shell inner wall.

The utility model discloses in, preferred, be close to air intake one side the last extension mounting bar of shell inner wall, the mounting bracket is fixed on the mounting bar.

The utility model discloses in, it is further, the mounting bracket sets up the middle part of guide plate.

The utility model discloses in, it is further, be close to be provided with a plurality of protruding pieces that are used for providing the resistance for the air current on the shell inner wall of air intake.

The utility model discloses in, it is further, the mounting panel is stretched out to the shell both sides.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a simplex structure air cleaner introduces the external air that flows from the air intake, and the air removes dust after flowing into the dust removal passageway, and clean air can get into the passageway of airing exhaust along the water conservancy diversion passageway and discharge, and the air that contains impurity can be discharged back to the atmosphere along with the air current through the dust removal mouth, thereby has realized the separation of clean air and impurity, provides clean air steadily, and the impurity of having avoided gathering blocks up air dust collector, and can guarantee to normally work for a long time under the condition of not clearing up; the utility model discloses in, the air gets into from the air intake, and the air flow rate of air intake is great relatively, along dust removal passageway to the dust removal mouth direction flow in-process, and air flow rate can reduce, and this scheme makes the interval between guide plate and the shell lateral wall crescent to air outlet one side by the air intake, at the air along the dust removal passageway flow in-process that narrows down gradually, the velocity of flow can not obviously descend to dust collection efficiency has further been promoted. The utility model adopts two symmetrically arranged guide plates to combine the air filter element, has simple structure and small occupied space, and the shell can be directly installed with the ventilation opening of a bullet train and the like through the installation plate, thereby being convenient to install and dismantle; the utility model discloses a non-closed rectangle shell compares in circular, has increased the air volume, improves dust collection efficiency.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the present invention, which is shown in FIG. II;

FIG. 3 is a sectional view of the structure of FIG. I;

FIG. 4 is a sectional view of the present invention, which is shown in FIG. II;

fig. 5 is a schematic structural view of an airfoil-shaped guide vane of the present invention;

fig. 6 is a schematic cross-sectional structure view of the linear guide vane of the present invention;

fig. 7 is a schematic cross-sectional structure view of the arc-shaped guide vane of the present invention.

In the figure: 1. a housing; 2. an air inlet; 3. a baffle; 30. a flow deflector; 301. a drainage surface; 302. a flow guide surface; 4. a dust removal plate; 40. a dust removal port; 5. a dust removal channel; 6. an air exhaust channel; 7. a raised block; 8. a mounting frame; 10. a flow guide channel; 11. an air outlet; 12. mounting a bar; 13. and (7) mounting the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 2, a preferred embodiment of the present invention provides a unistructure air filter, and aims to provide an air filter with simple structure, easy installation and good dust removal effect, wherein the air filter is installed on the ventilation opening of a rail transportation means such as a high-speed rail or a motor train unit, and is used for filtering impurities in the air.

The utility model provides a unistructuration air cleaner, includes non-closed shell 1 and fixes the air filter in

shell

1, and 1 both ends opening of shell sets up in order to constitute air cleaner's air intake 2 and air outlet 11, shell 1 are the rectangle, compare in circular increase the air volume and be convenient for the installation, adopt both ends opening to set up to the design of air intake 2 and air outlet 11. Meanwhile, through the arrangement of the shell 1, air flow diffusion can be prevented, so that air flow is formed in the air filter element more easily, and the dust removal effect is improved.

In this embodiment, further, the air filter includes two guide plates 3 that are the same as the structure of casing 1 fixed connection and are set up symmetrically, and the interval between two guide plates 3 and the casing 1 lateral wall is from air intake 2 to air outlet 11 one side crescent. Specifically, this scheme adopts guide plate 3 that two symmetries set up, and the both sides and the 1 internal contact of shell of this guide plate 3 can not only make 3 both sides of guide plate receive the holding power, make it connect stably, can prevent the air current dispersion simultaneously, make the air current flow along predetermined passageway.

The utility model discloses in, please refer to fig. 3 to fig. 4 simultaneously, form dust removal channel 5 between two guide plates 3, form air exhaust channel 6 between every guide plate 3 and the shell 1 lateral wall, the air gets into the air separation that will contain impurity through dust removal channel 5 from air intake 2, and clean air gets into air exhaust channel 6 through guide plate 3, discharges through air outlet 11.

In the vertical cross-section of this device, the cross sectional area of two guide plates 3 is reduced to 11 one sides of air outlet by air intake 2 gradually, interval between two guide plates 3 and the 1 lateral wall of shell is crescent to 11 one sides of air outlet by air intake 2 promptly, because the air gets into from air intake 2, the air flow rate of air intake 2 is great relatively, the atmosphere flows the in-process along the inside dust removal passageway 5 of air filter, the gas flow rate can reduce, this scheme is through making the air flow along the inside flow of the air filter that narrows down gradually, and then the velocity of flow can not obviously descend, thereby the speed that the air flows has been increased, the dust collection efficiency is improved.

The utility model discloses in, further, guide plate 3 includes the water conservancy diversion piece 30 that a plurality of parallels and interval set up, forms water conservancy diversion passageway 10 between per two water conservancy diversion pieces 30, and every distance between water conservancy diversion piece 30 and the shell 1 increases along the direction of air intake 2 to air outlet 11 gradually, and water conservancy diversion piece 30 inclines to 2 directions of air intake promptly. The air in the flow guide channel 10 flows obliquely backward relative to the air in the dust removing channel 5, so that a high-pressure area with a pressure greater than the central part of the air flow of the dust removing channel 5 is formed at the joint of the flow guide channel 10 and the dust removing channel 5, the high-pressure area can push the lighter impurities (such as floccules) which are entrapped in the air flow of the dust removing channel 5 and are close to the flow guide channel 10 back to the central position of the dust removing channel 5, so that the lighter impurities cannot enter the flow guide channel 10, and the lighter impurities can continuously move along with the air flow to the dust removing opening 40. And if the heavier impurities (such as sand grains) entrained in the airflow of the dust removing channel 5 reach the flow guide channel 10, the impurities impact the inner wall of the flow guide channel 10 (namely the surface of the flow guide sheet 30), are ejected back to the central position of the dust removing channel 5, and keep moving towards the dust removing opening 40 due to the inertia of the impurities, but do not move towards the flow guide channel 10 at the oblique rear. In addition, impurities (such as rainwater) with high moisture content in the airflow of the dust removing channel 5 can be atomized by the inner wall of the flow guide channel 10 if reaching the flow guide channel 10 and then pushed back to the central position of the dust removing channel 5 by the airflow.

The utility model discloses in, it is further that the one end that air filter is close to air outlet 11 is connected with two dust removal boards 4, forms dust removal mouth 40 between two dust removal boards 4, dust removal mouth 40 with dust removal channel 5 intercommunication, the air that contains magazine is discharged back to the atmosphere through dust removal mouth 40 after dust removal channel 5 flows. In order to increase the gas flow rate at the diversion channel 10 and the dust removal opening 40, a fan can be connected at the dust removal opening 40. Preferably, the dust removing plates 4 comprise a drainage part with the same shape as the flow deflector 30 and a dust discharging part which is integrally formed with the drainage part and vertically upwards, a dust removing opening 40 is formed in a gap between the dust discharging parts of the two dust removing plates 4, the drainage part has the same structure as the flow deflector 30, so that the dust removing channel 5 is designed and connected, and meanwhile, the dust removing opening 40 can be extended to facilitate the outflow of air containing impurities.

In the present embodiment, further, the baffle 3 is fixed on the inner wall of the housing 1 by a mounting frame 8. Specifically, 8 bottoms of mounting bracket can be directly fixed with 1 lateral wall of shell, set up a plurality of draw-in grooves with the outer terminal surface matched with of water conservancy diversion piece 30 on the mounting bracket 8, with water conservancy diversion piece 30 joint one by one in the draw-in groove to make the both sides of water conservancy diversion piece 30 offset with 1 inside wall of shell, so, guarantee the stable installation of water conservancy diversion piece 30. In addition, can also adopt mounting bracket 8 and water conservancy diversion piece 30 integrated into one piece, when using, can directly fix mounting bracket 8 at the shells inner wall and can accomplish the equipment.

In this embodiment, the working principle of the air cleaner is as follows: when air flow with a certain speed exists in the outside air, the air inlet 2 faces the air flowing direction, so that the outside air enters the air filter element from the air inlet 2. The outside air first enters the dust removing channel 5, and impurities exist in the air entering the dust removing channel 5. Because each guide plate 3 has a certain inclination angle, a certain resistance can be generated to the airflow, so that the flow velocity of the side wall is slow, the wall pressure in the dust removing channel 5 is increased, namely the static pressure is increased, the relative flow velocity of the central position of the airflow in the dust removing channel 5 is fast, and the static pressure is small. Therefore, the impurities such as the particles, floccules, water drops and the like entrained by the airflow of the dust removing channel 5 flow along the central line direction of the dust removing channel 5 under the action of the wall pressure. And under the action of unequal static pressure, the impurities are easier to approach the direction of the central line of the dust removing channel 5, thereby being more beneficial to discharging the impurities from the dust removing port 40.

Meanwhile, in the dust removing channel 5, when passing through the position of the flow guide channel 10, a part of air enters the flow guide channel 10 and flows out of the air exhaust channel 6, and the part of air is clean air. The specific principle is as follows: when the airflow enters the guide channel 10 from the dust removing channel 5, part of energy is lost, so that the airflow speed in the guide channel 10 is slower than that in the dust removing channel 5. Therefore, when the air flow containing the impurities in the dust removing channel 5 approaches the guide channel 10, the attraction force at the guide channel 10 is small, and the inertia of the movement of the impurities cannot be overcome, that is, the air flow speed in the dust removing channel 5 is higher than the air flow speed in the guide channel 10, so the impurities cannot enter the guide channel 10, and the clean air and the impurities can be separated by themselves. Wherein, the ratio or difference of the airflow speed in the flow guide channel 10 and the airflow speed in the dust removal channel 5 can be adjusted by adjusting the difference of the cross sections of the two channels and adding power sources such as fans and the like at the channel openings.

Thus, clean air without impurities can enter the exhaust channel 6 from the flow guide channel 10, and impurities such as particulate matters, floating matters and the like are discharged through the dust removal port 40 along with the airflow of the dust removal channel 5, so that the clean air and the impurities are separated by the air filter element. The integral device is simple in structure and convenient to install, clean air is stably provided through the air filter, accumulated impurities are prevented from blocking the air filter, the trouble of manually cleaning the air dust removal device is eliminated, manpower, material resources and financial resources are saved, and long-time normal work under the condition of not cleaning can be guaranteed.

In another preferred embodiment of the present invention, a mounting bar 12 extends from the inner wall of the housing 1 near the air inlet 2, and the mounting frame 8 is fixed on the mounting bar 12. Wherein, the shape of extension strip is unanimous with water conservancy diversion piece 30, not only can reduce the installation of water conservancy diversion piece 30, and the while can be convenient for mounting bracket 8 fixed, mounting bracket 8 sets up the middle part of guide plate 3, so, make the stress of the left and right sides of water conservancy diversion piece 30 even, whole assurance is stable.

In another preferred embodiment provided by the present invention, please refer to fig. 5, the axial section of the flow deflector 30 is wing-shaped, the flow deflector 30 includes a convex flow guiding surface 301 and a smoothly arranged flow guiding surface 302, and the flow guiding surface 301 and the flow guiding surface 302 are smoothly connected, the convex flow guiding surface 301 is a windward surface close to the dust removing channel 5, and the convex flow guiding surface 301 further increases the resistance of the air flow compared with the plane, so as to make the impurities as less as possible close to the flow guiding channel 10. Meanwhile, the convex flow guide surfaces 301 enable a high pressure area to be formed above the flow guide surfaces 302 more easily, and the high pressure area between two adjacent flow guide surfaces 301 has a certain repulsion effect, so that impurities are kept on the middle line position of the dust removing channel 5. Meanwhile, the circumferential guide vanes 30 enable the impurities to be stressed uniformly without eccentricity, so that the impurities can be better concentrated on the central line of the dust removal channel 5.

In another preferred embodiment provided by the present invention, as shown in fig. 6 and 7, the axial cross section of the baffle 30 is a rectangular, arc or polygonal surface (not shown), and the processing process of the baffle 30 with regular and smooth shape is simple compared with that of the wing-shaped baffle 30, which is convenient for the production, use and installation of the baffle 30.

In another preferred embodiment of the present invention, a plurality of protruding blocks 7 for providing resistance to the airflow are disposed on the inner wall of the housing 1 near the air inlet 2. When the air flow enters from the air inlet 2, the convex blocks 7 provide certain resistance for the air flow, so that the wall pressure in the dust removing channel 5 is increased, and impurities in the air flow, particularly floccules, flow in the direction approaching to the central line of the dust removing channel 5 under the action of the wall pressure. The shape of the convex block 7 is not limited too much, and can be trapezoidal, triangular, circular, semicircular or other irregular shapes, and only needs to play a certain role in blocking the flow velocity. Furthermore, the utility model discloses a protruding piece 7 can be for setting up in succession or the interval sets up, and wherein, the protruding piece 7 that the interval set up is compared to the protruding piece 7 of setting up in succession can provide bigger resistance, specifically can set up according to actual need and the size of device in practical application.

In another preferred embodiment of the present invention, as shown in fig. 2, the protrusions are arranged in a trapezoidal shape, i.e. the cross section of the protrusion block 7 is trapezoidal. For the relatively irregular shape, the processing technology of the regular-shaped convex block 7 is simple, and the practicability is strong. The contact area between the convex block 7 with the rectangular cross section and the air inlet 2 of the air inlet pipe is the largest, so that the air flow is blocked most, and the energy loss of the air flow is also the largest. And the triangular or circular shape has smaller resistance and relatively smaller energy loss. Therefore, as preferred scheme, the utility model discloses choose for use but the cross-section is trapezoidal protruding piece 7, trapezoidal inclined plane is relative with air intake 2, when guaranteeing to realize higher hindrance effect to the air current, reduces the energy loss to the air current.

The utility model discloses an in another embodiment, it is preferred, be connected with the induced air device that is used for accelerating the velocity of flow at dust removal mouth 40, the induced air device can be for fan, air pump etc. not only can provide power for dust removal channel 5, has increased the speed that the air flows, has further promoted dust collection efficiency, can guarantee again simultaneously that the velocity of flow of dust removal mouth 40 is greater than air outlet 11, has improved dust removal effect. Simultaneously, when the external air current that does not satisfy needs, then need artificial manufacturing air current to satisfy the needs of air filter equipment work, can set up the induced air device in air intake 2 department, make this device can not rely on external air current and remove impurity, derive clean air to make the application scene of this device more extensive, and realized that air velocity is adjustable, the working process is more high-efficient.

In the utility model provides a another preferred embodiment, the mounting panel 13 is stretched out to the shell 1 both sides, is fixed in the vent department of train through mounting panel 13 with this device fast, filters the air of introducing, makes overall structure simple to operate.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. The single-structure air filter is characterized by comprising a non-closed shell (1) and an air filter element fixed in the shell (1), wherein openings at two ends of the shell (1) are arranged to form an air inlet (2) and an air outlet (11) of the air filter, the air filter element comprises two guide plates (3) which are fixedly connected with the shell (1) and have the same structure and are symmetrically arranged, and the distance between the two guide plates (3) and the side wall of the shell (1) is gradually increased from the air inlet (2) to one side of the air outlet (11);

a dust removal channel (5) is formed between the two guide plates (3), an air exhaust channel (6) is formed between each guide plate (3) and the side wall of the shell (1), air enters from the air inlet (2) and is separated from air containing impurities through the dust removal channel (5), and clean air enters the air exhaust channel (6) through the guide plates (3) and is exhausted through the air outlet (11).

2. A single structure air cleaner according to claim 1, wherein the guide plate (3) comprises a plurality of guide plates (30) arranged in parallel and at intervals, a guide channel (10) is formed between every two guide plates (30), and clean air enters the exhaust channel (6) along the guide channel (10).

3. A single structure air cleaner according to claim 2, wherein the distance between each of the baffles (30) and the housing (1) increases in a direction from the inlet (2) to the outlet (11).

4. The air filter of claim 3, wherein the air filter element is connected with two dust removing plates (4) at one end close to the air outlet (11), a dust removing port (40) is formed between the two dust removing plates (4), the dust removing port (40) is communicated with the dust removing channel (5), and air containing magazines flows along the dust removing channel (5) and then is exhausted back to the atmosphere through the dust removing port (40).

5. A single structure air cleaner according to claim 2 wherein the guide vane (30) is airfoil shaped in axial cross-section, the guide vane (30) comprising an outwardly convex flow guide surface (301) and a smoothly disposed flow guide surface (302).

6. A single structure air cleaner according to claim 2, wherein the deflector (3) is fixed to the inner wall of the housing (1) by means of a mounting bracket (8).

7. A single structure air cleaner according to claim 6 wherein a mounting bar (12) extends outwardly from the inner wall of the housing (1) adjacent the inlet (2), the mounting bracket (8) being secured to the mounting bar (12).

8. A single structure air cleaner according to claim 6 wherein the mounting bracket (8) is provided in the middle of the baffle (3).

9. A single structure air cleaner according to claim 3, wherein a plurality of protrusions (7) for providing resistance to air flow are provided on the inner wall of the housing (1) adjacent to the air inlet (2).

10. A single structure air cleaner according to claim 1 wherein mounting plates (13) extend outwardly from both sides of the housing (1).