CN214861874U - Air filtering device - Google Patents
Air filtering device Download PDFInfo
- Publication number
- CN214861874U CN214861874U CN202121307383.9U CN202121307383U CN214861874U CN 214861874 U CN214861874 U CN 214861874U CN 202121307383 U CN202121307383 U CN 202121307383U CN 214861874 U CN214861874 U CN 214861874U
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- air
- dust
- casing
- filtration device
- bellying
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Abstract
The utility model relates to an air intake system with multistage air filtering function specifically is an air filter, which comprises a housin, be provided with on the casing with the air inlet and the gas outlet of the inside cavity intercommunication of casing, the bottom of casing has set firmly the bellying of upwards extending, the bellying is from the upper end to its cross section crescent of lower extreme, the end setting of giving vent to anger of the inside cavity of bellying orientation casing, the inside cavity of casing has the water conservancy diversion passageway that makes the air make rotary motion around the bellying. The scheme solves the problem that the maintenance frequency of a secondary filtering device is high when the existing air inlet system with the multistage air filtering function works in a heavy dust environment.
Description
Technical Field
The utility model relates to an air intake system with multistage air filtering function specifically is an air filter.
Background
The existing air inlet system generally carries out multi-stage filtration on air so as to improve the cleanliness of the air. For example, the primary filtering device is used for primary filtering of air to separate impurities with large mass and large volume in the air, and the secondary filtering device is used for fine filtering of the air, so that the impurities with small mass and small volume in the air are separated, and the effect of fully filtering the air is achieved. The existing filtering device for primary air filtration generally adopts a mode of a rotational flow blade to rotate air, so that impurities with large mass and large volume in the air are separated by utilizing centrifugal force generated when the air rotates, and further primary filtration of the air is realized. For example, in the solution disclosed in patent publication No. CN204386780U, the air is whirlwind by the whirlwind blades, so as to realize preliminary filtration of the air. For example, in the technical solution disclosed in patent document CN208330580U, the air is made to form a cyclone by the cyclone blades, thereby achieving the effect of primary filtering of the air.
However, when the air conditioner is operated in a working environment having a high content of impurities such as dust in the air, such as a heavy dust environment like an environment in which a large amount of dust is often generated in a construction site, an environment in which a large amount of dust is generated in an agricultural cultivation environment, the service life of the secondary filter device of the air intake system is greatly reduced, thereby causing a problem of frequent maintenance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air filter to solve current air intake system that has multistage air filtering capability during operation in heavy dirt environment, secondary filter equipment's the high problem of frequency of maintenance.
In order to achieve the above object, the basic scheme of the utility model provides an air filtering device, which comprises a housin, be provided with on the casing with the air inlet and the gas outlet of the inside cavity intercommunication of casing, the bottom of casing has set firmly the bellying that upwards extends, its cross section crescent from the upper end to the lower extreme of bellying, the end setting of giving vent to anger of the inside cavity of bellying orientation casing, the inside cavity of casing has the water conservancy diversion passageway that makes the air make rotary motion around the bellying.
The beneficial effect of this basic scheme lies in: the air gets into and makes rotary motion around the bellying in the water conservancy diversion passageway behind the casing is inside to go upward gradually along the bellying, make the continuous rotary motion of doing of air in the casing, thereby make the impurity that the quality is heavier in the air be in water conservancy diversion passageway's lateral wall department under the centrifugal action, compare with the air filter who uses whirl blade among the prior art, the maintenance frequency of the secondary filter who can effectual reduction air intake system during operation in the heavy dirt environment.
In order to further reduce the maintenance frequency, the outer surface of the convex part is a conical cambered surface.
In order to further reduce the maintenance frequency, the air inlet is tangentially arranged with the flow guide channel.
In order to further reduce the maintenance frequency, a cylindrical baffle plate extending towards the bulge part is arranged around the air outlet, and a first air flow channel is arranged between the bulge part and the baffle plate.
In order to further reduce the maintenance frequency, a dust separation piece is fixedly arranged on the inner side of the baffle, and a second airflow channel is arranged between the dust separation piece and the baffle.
In order to further reduce the maintenance frequency, the dust separation piece is in a transverse plate shape.
In order to further reduce the maintenance frequency, the dust separation element is in the shape of a bowl which is opened towards the bulge.
In order to further reduce the maintenance frequency, a surrounding plate protruding in the opposite direction of the airflow direction is fixedly arranged on the edge of the air outlet, and a third airflow channel is arranged between the surrounding plate and the dust separation piece.
In order to further reduce the maintenance frequency, the axial projection area of one end of the enclosing plate close to the dust separation piece is smaller than the projection area of the dust separation piece.
In order to further reduce the maintenance frequency, a dust exhaust port is arranged on the shell and is tangent to the flow guide channel.
In order to further reduce the maintenance frequency, a dust baffle plate is fixedly arranged at one end of the dust exhaust port communicated with the flow guide channel, and the dust baffle plate extends reversely along the airflow direction.
Drawings
Fig. 1 is a schematic view of an embodiment of an air filter device according to the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the dust-proof device comprises a shell 1, an air inlet 2, a flow guide channel 3, a protruding part 4, a dust exhaust port 5, a dust baffle 6, a first air flow channel 7, a baffle 8, a second air flow channel 9, a dust-proof piece 10, a third air flow channel 11, a coaming 12 and an air outlet 13.
The embodiment is basically as shown in the attached figure 1: an air filtering device comprises a shell 1, wherein the shell 1 in the embodiment is preferably in a cylindrical structure, so that the outer side wall of an inner cavity of the shell 1 is a cylindrical surface, and the shell 1 is formed by buckling an upper part and a lower part; the shell 1 is provided with an air inlet 2 and an air outlet 13 which are communicated with the inner cavity of the shell 1, the air outlet 13 is positioned at the top center of the shell 1 in the embodiment, so that the upper end of the inner cavity of the shell 1 is used as an air outlet end, the air inlet 2 is positioned at the side part of the shell 1, and the air inlet 2 is tangentially arranged with the outer side wall of the inner cavity of the shell 1, so that the shell 1 forms a tangential air inlet arrangement. The bottom of the shell 1 is integrally formed with a convex part 4 extending upwards, the cross section of the convex part 4 is gradually increased from the upper end to the lower end, so that the upper end of the convex part 4 is arranged towards the air outlet end of the inner cavity of the shell 1; the boss 4 in the present embodiment is preferably a conical structure provided coaxially with the housing 1, and the outer surface of the boss 4 is a conical arc surface so that the upper end of the boss 4 is opposed to the air outlet 13. The interior of the housing 1 then has a flow-guiding channel 3 around the projection 4, and the air inlet 2 is tangential to the flow-guiding channel 3, so that air entering the interior of the housing 1 from the air inlet 2 first makes a rotational movement around the projection 4.
A cylindrical baffle 8 extending toward the boss 4 is provided around the outlet 13, and the baffle 8 is integrally formed with the top of the housing 1. The baffle 8 extends downward and surrounds the upper portion of the boss 4, so that the first air flow passage 7 is formed between the baffle 8 and the boss 4. A dust-proof piece 10 is arranged on the inner side of the baffle plate 8 and used for blocking impurities rising along the side wall of the bulge part 4; a second air flow channel 9 is arranged between the dust barrier 10 and the inner wall of the baffle 8. The dust-proof component 10 can be a plate-shaped structure perpendicular to the axis of the boss 4, or can be a groove-shaped structure with an opening facing the boss 4, the dust-proof component 10 in the embodiment is preferably a bowl-shaped structure with an opening facing the boss 4, and the dust-proof component 10 is coaxially connected and fixed with the boss 4. Of course, the dust-proof member 10 can also be fixedly connected to the baffle plate 8 or the casing 1. The edge of the air outlet 13 protrudes towards the dust-proof piece 10 to form a surrounding plate 12, the surrounding plate 12 and the shell 1 are integrally formed, the axial projection area of one end, close to the dust-proof piece 10, of the surrounding plate 12 is smaller than that of the dust-proof piece, and a third airflow channel 11 is arranged between the surrounding plate 12 and the dust-proof piece 10, so that a space opposite to the second airflow channel 9 is formed between the surrounding plate 12 and the baffle plate 8, and further, impurities blocked by the surrounding plate 12 can be temporarily stored conveniently.
A dust outlet 5 is provided on the housing 1 and outside the flow guide channel 3, and in this embodiment, the dust outlet 5 is preferably provided tangentially to the flow guide channel 3. One end of the dust exhaust port 5 communicated with the flow guide channel 3 is provided with a dust baffle plate 6 extending along the airflow direction in the reverse direction, and the dust baffle plate 6 and the shell 1 are integrally formed. The probability that impurities in the air enter the dust exhaust port 5 can be improved through the dust baffle 6, so that the filtering efficiency of the air is improved. The one end that the dirt mouth 5 kept away from water conservancy diversion passageway 3 can discharge the impurity after filtering through setting up the check valve structure for the direction of opening to casing 1 outside, also can collect from dirt mouth 5 exhaust impurity through setting up the collection container that can dismantle the connection with dirt mouth 5.
The specific implementation process is as follows: after entering the housing 1 from the air inlet 2 under the negative pressure, the air to be filtered firstly rotates around the convex part 4 in the flow guide channel 3, so that part of impurities carried in the air move towards the side wall of the housing 1 under the centrifugal action and finally enter the dust exhaust port 5 to be exhausted. Then the air rises spirally along the convex part 4 under the action of negative pressure, and the impurities close to the side wall of the convex part 4 are intercepted under the blocking action of the dust isolating piece 10 and slide to the bottom of the flow guide channel 3 along the side wall of the convex part 4, namely the position close to the bottom edge of the shell 1, so that the impurities perform centrifugal motion again under the action of the rotary motion of the air and finally enter the dust exhaust port 5. Then the air enters into the second air flow channel 9 between the dust separation member 10 and the baffle plate 8 along the first air flow channel 7 between the protruding part 4 and the baffle plate 8, and goes upward along the second air flow channel 9 and moves towards the air outlet 13, and part of impurities carried in the air can move towards the space between the enclosing plate 12 and the baffle plate 8 under the inertia effect, so that the impurities are blocked by the enclosing plate 12, namely, the impurities in the air are filtered again. The air inlet system carries out primary filtration on air by adopting the air filtering device, thereby effectively reducing the maintenance frequency of the secondary filtering device when the air inlet system works in a heavy dust environment and prolonging the service life of the secondary filtering device.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (11)
1. The utility model provides an air filter, includes the casing, be provided with on the casing with the air inlet and the gas outlet of the inside cavity intercommunication of casing, its characterized in that: the bottom of casing sets firmly the bellying that upwards extends, its cross section of bellying from upper end to lower extreme gradually increases, the upper end of bellying sets up towards the end of giving vent to anger of the inside cavity of casing, the inside cavity of casing has the water conservancy diversion passageway that makes air make rotary motion around the bellying.
2. An air filtration device according to claim 1 wherein: the outer surface of the convex part is a conical cambered surface.
3. An air filtration device according to claim 2 wherein: the air inlet is tangent to the flow guide channel.
4. An air filtration device according to any one of claims 1 to 3 wherein: a cylindrical baffle plate extending towards the protruding portion is arranged around the air outlet, and a first air flow channel is arranged between the protruding portion and the baffle plate.
5. An air filtration device according to claim 4 wherein: and a dust-proof piece is fixedly arranged on the inner side of the baffle, and a second airflow channel is arranged between the dust-proof piece and the baffle.
6. An air filtration device according to claim 5 wherein: the dust isolating piece is transversely arranged in a plate shape.
7. An air filtration device according to claim 5 wherein: the dust isolating piece is bowl-shaped with an opening facing the bulge.
8. An air filtration device according to claim 7 wherein: and a third air flow channel is arranged between the enclosing plate and the dust-proof piece.
9. An air filtration device according to claim 8 wherein: the axial projection area of one end of the coaming, which is close to the dust-proof piece, is smaller than that of the dust-proof piece.
10. An air filtration device according to any one of claims 1 to 3 wherein: the shell is provided with a dust exhaust port, and the dust exhaust port is tangent to the flow guide channel.
11. An air filtration device according to claim 10 wherein: and a dust baffle plate is fixedly arranged at one end of the dust exhaust port communicated with the flow guide channel, and the dust baffle plate extends reversely along the airflow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121307383.9U CN214861874U (en) | 2021-06-11 | 2021-06-11 | Air filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121307383.9U CN214861874U (en) | 2021-06-11 | 2021-06-11 | Air filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214861874U true CN214861874U (en) | 2021-11-26 |
Family
ID=78899431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121307383.9U Withdrawn - After Issue CN214861874U (en) | 2021-06-11 | 2021-06-11 | Air filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214861874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113144759A (en) * | 2021-06-11 | 2021-07-23 | 重庆宗申通用动力机械有限公司 | Air filtering device |
-
2021
- 2021-06-11 CN CN202121307383.9U patent/CN214861874U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113144759A (en) * | 2021-06-11 | 2021-07-23 | 重庆宗申通用动力机械有限公司 | Air filtering device |
| CN113144759B (en) * | 2021-06-11 | 2024-07-05 | 重庆宗申通用动力机械有限公司 | Air filtering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20211126 Effective date of abandoning: 20240705 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20211126 Effective date of abandoning: 20240705 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |