Filter device of air compressor

Abstract

The utility model provides a filtering device of an air compressor, and belongs to the field of compressor filtering. The problems that a filter element in a traditional ash removal mode is prone to damage, the filter element shakes easily under the action of wind pressure, and a sliding limiting part is prone to damage are solved. The device comprises a filter cavity, the filter cavity is provided with an air inlet end and an air outlet end, a filter part is arranged between the air inlet end and the air outlet end in a sliding mode, and an ash discharge port is formed in the position, below the filter part, of the wall face of the filter cavity; the flow guide protection part is arranged on the side, close to the air inlet end, of the filtering part and used for dividing airflow to act on the corresponding side end face of the filtering part; wherein during filtering, airflow enters the filtering cavity from the air inlet end, is filtered by the filtering part and then is discharged from the air outlet end, the filtering part is pushed against the inner wall of the filtering cavity, and during ash removal, the filtering part periodically knocks the inner wall of the filtering cavity under the action of the ash removal driving assembly. The pre-filter unit is mainly used as the pre-filter unit of the compressor.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the compressor filter field, especially, relate to an air compressor filter device. BACKGROUND

[0002] Air compressor needs to filter the airflow when using, guarantee the stable operation of itself.

[0003] The traditional filter device has some self-cleaning mechanism when using, for the reciprocating vibration knocking type cleaning method, most of them are through the knocking part to knock the filter core, which is easy to damage the filter core. Some others use the filter core itself to slide and knock the inner wall of the filter cavity, but the sliding limiting part is easy to slip under the action of vibration and knocking, which leads to unstable cleaning process and damage of the limiting part. During the non-cleaning stage, the filter core is easy to shake under the action of wind pressure, mainly because the structure of the filter core and the sliding track is not reasonable enough. SUMMARY

[0004] Therefore, the utility model aims at providing an air compressor filter device to solve the problems of damage of the filter core, shaking of the filter core under the action of wind pressure and damage of the sliding limiting part.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an air compressor filter device, comprising:

[0006] A filter cavity is provided with an air inlet end and an air outlet end, a filter part is slidably arranged between the air inlet end and the air outlet end, and a dust discharge port is arranged below the filter part on the wall surface of the filter cavity.

[0007] A flow guide protection part is arranged on the side of the filter part close to the air inlet end, which is used to shunt the airflow to the corresponding side end face of the filter part.

[0008] During filtration, the airflow enters the filter cavity from the air inlet end, is filtered by the filter part, and is discharged from the air outlet end. The filter part is pushed against the inner wall of the filter cavity. During cleaning, the filter part periodically knocks the inner wall of the filter cavity under the action of the cleaning drive assembly.

[0009] Further, a wear-resistant pressurizing part is arranged in the filter cavity, the outer shape of the wear-resistant pressurizing part is adapted to the inner diameter of the filter cavity, the end face away from the airflow is connected to the movable end of the second drive part, and the second drive part is used to drive the wear-resistant pressurizing part to move in the filter cavity.

[0010] Further, the airflow is reversed by the wear-resistant pressurizing part before being blown out from the air outlet end.

[0011] Further, a sealing ring is arranged on the peripheral wall of the wear-resistant pressurizing part.

[0012] Furthermore, the wear-resistant pressure part is detachably connected to the movable end of the second drive part.

[0013] Furthermore, the flow guiding and protective part is a conical rotating body, and the dust removal drive assembly is disposed inside the flow guiding and protective part.

[0014] Furthermore, the flow-guiding and protective part is threadedly connected to the filter part.

[0015] Furthermore, the filter section is cylindrical in shape, with filter holes provided on the side near the air inlet and on the peripheral wall, and the flow guiding and protection section is connected to the middle of the end face of the filter section near the air inlet.

[0016] Furthermore, a sliding path portion is provided on the inner wall of the filter chamber, and a limiting portion is provided at the other end of the sliding path portion. The filter portion slides on the sliding path portion and is located between the inner wall of the filter chamber and the limiting portion. An elastic portion is provided between the filter portion and the limiting portion. When the elastic portion is relaxed, the filter portion pushes against the inner wall of the filter chamber.

[0017] Furthermore, the dust removal drive assembly includes an eccentric part and a first drive part. The eccentric part is rotatably connected to the filter part, and the rotating end of the first drive part is connected to the eccentric part to drive the eccentric part to rotate and form a polarization force.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This filter structure can perform self-cleaning. During the non-cleaning stage, it can tightly adhere to the inner wall of the filter chamber under the action of wind pressure. At the same time, with the assistance of the elastic part, the tightness of the fit is further ensured, which can ensure effective filtration and prevent gaps from reducing the filtration effect. During the cleaning stage, the filter part reciprocates by vibration and is struck by the edge of the barrel structure, which reduces damage to the filter part and extends its service life.

[0020] 2. This filter structure features a wear-resistant pressurizing section at the airflow reversal point, which can redirect the airflow and reduce wear on the pipeline. The wear-resistant pressurizing section is adapted to the inner diameter of the pipeline. When the filter becomes clogged and tapping is ineffective, the movement of the wear-resistant pressurizing section pressurizes the pipeline and acts on the filter pores, improving the cleaning effect and clearing the pipeline. Regular use will create pressure changes throughout the device, helping the pipeline operate under healthier conditions. Attached Figure Description

[0021] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0022] Figure 1 This is a first-view structural schematic diagram of an air compressor filter device according to the present invention;

[0023] Figure 2 This is a second-view structural schematic diagram of an air compressor filter device according to the present invention;

[0024] Figure 3 This is a front view of an air compressor filter device according to the present invention.

[0025] Figure 4 The present utility model Figure 3 Sectional view along axis AA;

[0026] Figure 5 The present utility model Figure 3 BB-direction sectional view;

[0027] Figure 6 This is a schematic diagram of the structure of the dust removal drive assembly described in this utility model.

[0028] Filter chamber 1; air inlet 2; ash discharge port 3; filter section 4; sliding path section 5; elastic section 6; limiting section 7; air guiding and protection section 8; eccentric section 9; first drive section 10; reversing chamber 11; air outlet 12; wear-resistant pressurizing section 13; second drive section 14; support section 15. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0030] It should be noted that the descriptions of "left," "right," "left side," "right side," "upper part," "lower part," "top," and "bottom" in this utility model are defined based on the orientation or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and are not intended to indicate or imply that the described structure must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0031] In the description of this utility model, unless otherwise expressly 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.

[0032] Referring to the accompanying drawings, this embodiment of an air compressor filtration device includes:

[0033] The filter chamber 1 has an air inlet 2 and an air outlet 12. A filter section 4 is slidably disposed between the air inlet 2 and the air outlet 12. A dust discharge port 3 is disposed on the wall of the filter chamber 1 below the filter section 4. The filter chamber 1 is divided into two parts. One part serves as an air inlet box, with the air inlet 2 disposed on the air inlet box for airflow entry. A flange is disposed on the peripheral wall of the air inlet 2 for easy connection with other components. The other part is a reversing chamber 11 for airflow reversal. A wear-resistant pressurizing part 13 is disposed at the corner of the reversing chamber 11. The air outlet 12 is disposed on the reversing chamber 11 and at a certain angle to the flow direction, which can reduce the wear caused by the reversal of gas flow. The position of the filter section 4 ensures that it fits tightly against the inner wall of the filter chamber 1 under the action of the incoming flow, thus ensuring the filtration effect. On the other hand, by setting the airflow guide and protection part 8 on the side of the filter part 4 near the air inlet 2, the airflow can be diverted to the corresponding side end face of the filter part 4. Due to the diversion effect, on the one hand, the filter holes at each position can be effectively utilized, improving filtration efficiency and reducing air loss. On the other hand, the angle of the gas flowing through each filter hole can be changed, thereby reducing the cavitation effect caused by a single gas flow direction while ensuring gas flow efficiency.

[0034] During filtration, the airflow enters the filter chamber 1 from the air inlet 2, is filtered by the filter section 4, and is discharged from the air outlet 12. The filter section 4 is pushed against the inner wall of the filter chamber 1. During cleaning, the filter section 4 periodically taps the inner wall of the filter chamber 1 under the action of the cleaning drive assembly.

[0035] In this embodiment, a wear-resistant pressurizing part 13 is provided inside the filter chamber 1. The shape of the wear-resistant pressurizing part 13 is adapted to the inner diameter of the filter chamber 1. The end face away from the airflow is connected to the movable end of the second drive part 14. The second drive part 14 is used to drive the wear-resistant pressurizing part 13 to move inside the filter chamber 1. The airflow is reversed by the wear-resistant pressurizing part 13 before being blown out from the air outlet 12. This can reduce the wind erosion effect on the pipeline and extend the service life of the pipeline. The second drive part 14 is specifically configured as a hydraulic cylinder. The cylinder body is mounted on the outer wall of the reversing cavity 11 through the support part 15. The hydraulic rod can slide through the outer wall of the reversing cavity 11 into the interior and connect to the wear-resistant pressurizing part 13. The wear-resistant pressurizing part 13 is specifically configured as a piston. A sealing ring is provided on the peripheral wall of the piston. The sealing ring can cooperate with the part communicating between the filter chamber 1 and the reversing cavity 11 during the piston movement, thereby causing pressure changes in the cavities on both sides of the piston during the movement. On one hand, it can effectively clean the filter section 4 within the filter chamber 1, and on the other hand, it can apply pressure changes to the other chamber and the connected pipeline to help unclog the pipeline and extend its service life. A wear-resistant protective layer, such as high-manganese steel plate, is installed on the piston's windward side. This wear-resistant protective layer is fixed to the piston with bolts, and the piston is detachably connected to the hydraulic rod with bolts, facilitating replacement during later maintenance. The second drive unit 14 can also be configured as other types of linear drive components according to actual needs, and a reasonable selection can be made based on the specific requirements.

[0036] In this embodiment, the wear-resistant pressure part 13 is detachably connected to the movable end of the second drive part 14, improving the convenience of installation, disassembly, and maintenance.

[0037] In this embodiment, the flow guiding and protective part 8 is a conical rotating body, and the dust removal drive assembly is disposed inside the flow guiding and protective part 8. The flow guiding and protective part 8 is a conical rotating body with rounded corners on the windward side, which helps reduce wind loss and guides the gas reasonably in all directions. This allows the air to move along the filter part 4, pass through the filter holes, and leave the filtration area. During this process, since the filter part 4 is cylindrical, filter holes are provided on the side near the air inlet end 2 and on the peripheral wall. The flow guiding and protective part 8 is connected to the middle of the end face of the filter part 4 near the air inlet end 2. With a large area and different directions of filter holes, the gas flows along the barrel wall and passes through the filter holes from different positions and angles, reducing directional cavitation and extending the service life of the filter part 4. At the same time, this filtration method can reduce the clogging rate.

[0038] In this embodiment, the flow guiding and protective part 8 is threadedly connected to the filter part 4, improving assembly and disassembly efficiency.

[0039] In this embodiment, a sliding path portion 5 is provided on the inner wall of the filter chamber 1, and a limiting portion 7 is provided at the other end of the sliding path portion 5. The filter portion 4 is slidably disposed on the sliding path portion 5 and located between the inner wall of the filter chamber 1 and the limiting portion 7. An elastic portion 6 is provided between the filter portion 4 and the limiting portion 7. When the elastic portion 6 is relaxed, the filter portion 4 is pushed against the inner wall of the filter chamber 1. The limiting part 7 is specifically a nut, and the sliding path part 5 is a smooth rod with a threaded free end. The nut and the free end are connected to form a limiting path. After the fixed end of the rod is welded to the inner wall of the filter chamber 1, a shock-resistant layer is set around the edge of the opening of the filter part 4, also made of high manganese steel. Then, a sealing ring is installed by slotting, and a through hole is set to mate with the rod. After the through hole mates with the rod, one side of the shock-resistant layer is pushed against the inner wall of the filter chamber 1. Then, an elastic part 6 is fitted onto each rod, specifically a spring. Then, the nut is installed. Due to the wind pressure, the filter chamber 1 is normally pushed against the inner wall of the filter chamber 1. The spring does not need to contact the limiting part 7 in the normal state, so no special limiting structure is needed for the nut to ensure stability. During the dust cleaning stage, the spring will be compressed, and the force is axial, which will not cause the nut to loosen.

[0040] In this embodiment, the dust removal drive assembly includes an eccentric part 9 and a first drive part 10. The eccentric part 9 is rotatably connected to the filter part 4, and the rotating end of the first drive part 10 is connected to the eccentric part 9 to drive the eccentric part 9 to rotate and generate a polarization force. Specifically, the eccentric part 9 is an eccentric block, and the first drive part 10 is a motor. The motor drives the eccentric part 9 to rotate and generate a polarization force. Under the cooperation of the polarization force and the spring, the filter part 4 moves away from the inner wall of the filter chamber 1 and then moves closer to strike it, completing the dust removal action. The cleaned dust is discharged from the ash discharge port 3, which can be connected to a closed ash hopper.

[0041] Under normal filtration conditions, the ash discharge port 3 is closed, and the airflow enters from the air inlet 2, is filtered by the filter section 4, and is discharged from the air outlet 12.

[0042] During cleaning, vibration cleaning can be selected, or pressure cleaning can be performed simultaneously with the wear-resistant pressurizing part 13 to clean the entire pipeline. In applications requiring reversing pipelines, the wear-resistant pressurizing part 13, often serving as the initial air inlet structure, can reduce wear on the reversing pipeline, thereby extending the maintenance cycle of the entire pipeline, which is of great significance for practical engineering.

[0043] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. An air compressor filtration device, characterized by, The utility model relates to a filter cavity (1) is provided with the air inlet end (2) and the air outlet end (12), the air inlet end (2) and the air outlet end (12) between slidingly provided with filter part (4), the filter cavity (1) wall surface below filter part (4) is provided with the ash outlet (3); The flow guide protection part (8) is arranged on the side of the filter part (4) close to the air inlet end (2) and is used for shunting the airflow to the corresponding side end face of the filter part (4). During filtering, the airflow enters the filter cavity (1) from the air inlet end (2), is filtered through the filter part (4), and is discharged from the air outlet end (12), the filter part (4) is pushed against the inner wall of the filter cavity (1), and during ash removal, the filter part (4) is periodically knocked against the inner wall of the filter cavity (1) under the action of the ash removal driving assembly. The filter cavity (1) is provided with a wear-resistant pressurizing part (13), the wear-resistant pressurizing part (13) is matched with the inner diameter of the filter cavity (1) in shape, the end face away from the airflow is connected with the movable end of the second driving part (14), and the second driving part (14) is used for driving the wear-resistant pressurizing part (13) to move in the filter cavity (1).

2. An air compressor filter apparatus as defined in claim 1, wherein: The airflow is reversed through the wear-resistant pressurizing part (13) before being blown out from the air outlet end (12).

3. An air compressor filter apparatus as claimed in claim 2, wherein: The wear-resistant pressurizing part (13) is provided with a sealing ring on the peripheral wall.

4. An air compressor filter apparatus as defined in claim 2, wherein: The wear-resistant pressurizing part (13) and the movable end of the second driving part (14) are detachably connected.

5. An air compressor filter apparatus as defined in claim 2, wherein: The flow guide protection part (8) is a conical rotary body, and the ash removal driving assembly is arranged in the flow guide protection part (8).

6. An air compressor filter apparatus as defined in claim 1, wherein: The flow guide protection part (8) is screw-connected with the filter part (4).

7. An air compressor filter apparatus as claimed in claim 6, wherein: The filter part (4) is in the shape of a barrel, is provided with filter holes on the side close to the air inlet end (2) and the peripheral wall, and the flow guide protection part (8) is connected to the middle part of the end face of the filter part (4) close to the air inlet end (2).

8. An air compressor filter apparatus as defined in claim 1, wherein: The filter cavity (1) is provided with a sliding path part (5) on the inner wall, the other end of the sliding path part (5) is provided with a limiting part (7), the filter part (4) is slidably arranged on the sliding path part (5) and is located between the inner wall of the filter cavity (1) and the limiting part (7), an elastic part (6) is arranged between the filter part (4) and the limiting part (7), and the filter part (4) is pushed against the inner wall of the filter cavity (1) when the elastic part (6) is in a relaxed state.

9. An air compressor filter arrangement according to any one of claims 1 to 8, wherein: The ash removal driving assembly comprises an eccentric part (9) and a first driving part (10), the eccentric part (9) is rotationally connected to the filter part (4), the rotating end of the first driving part (10) is connected with the eccentric part (9) and is used for driving the eccentric part (9) to rotate to form a polarization force.

10. An air compressor filter apparatus as claimed in claim 9, wherein: ​

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