Structure of a self-cleaning air filter assembly

Abstract

The application relates to the technical field of air filters, and discloses a structure of a self-cleaning air filter assembly, which comprises an outer cylinder and a filter cylinder arranged in the inner portion of the outer cylinder, and a gas outlet pipe is welded to the outer wall of the middle portion of the outer cylinder; the filter cylinder arranged in the outer cylinder plays a filtering role on the entering airflow; an engine load sensor can transmit the working state of the engine to a moving mechanism, and a dust concentration sensor can play a detecting role on the dust in the entering gas, can realize real-time monitoring of the dust concentration, and thus the moving mechanism drives the vertical movement of the annular brush to play a cleaning role on the filter cylinder; the dust can enter a dust outlet pipe along with the airflow, and the filtered gas enters the gas outlet pipe, so that the defects of the traditional pulse cleaning system, such as complexity, high cost, fixed blowing frequency and inability to dynamically adjust, are avoided, on-demand cleaning is realized, filter cylinder loss and energy waste caused by excessive cleaning are prevented, the decline of the filtering efficiency caused by dust accumulation is avoided, the air cleanliness entering the engine is ensured, and the maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the field of air filter technology, specifically to the structure of a self-cleaning air filter assembly. Background Technology

[0002] An air filter is a device that removes particulate impurities from the air. It mainly uses physical filtration to intercept dust, particulate matter and other impurities, ensuring that the air entering the engine or mechanical equipment is clean, preventing component wear and ensuring stable equipment operation.

[0003] Currently, air filters generally use a filter screen to filter dust. The dust on the filter screen is usually cleaned by pulse cleaning, which is a complex and costly system with a fixed blowing frequency that cannot be dynamically adjusted according to the dust concentration, easily leading to over-cleaning or dust accumulation. Utility Model Content

[0004] The purpose of this application is to provide a structure for a self-cleaning air filter assembly, which solves the problems mentioned in the background art. Air filters generally use filter screens to filter dust, and the dust on the filter screens is generally cleaned by pulse cleaning. This system is complex, costly, and has a fixed blowing frequency that cannot be dynamically adjusted according to the dust concentration, which can easily lead to over-cleaning or dust accumulation.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This application provides a structure for a self-cleaning air filter assembly, including an outer cylinder and a filter cartridge disposed inside the outer cylinder. An air outlet pipe is welded to the outer wall of the middle part of the outer cylinder, and an engine load sensor is installed on the outer wall of the air outlet pipe. A dust outlet pipe is welded to the outer wall of the outer cylinder on the side away from the air outlet pipe, located above the filter cartridge. An air inlet pipe is fixedly installed at the lower end of the outer cylinder, and a dust concentration sensor is installed on the outer wall of the air inlet pipe. An annular brush is disposed above the filter cartridge, and the position of the annular brush corresponds to the inner ring wall of the filter cartridge. A moving mechanism for vertically moving the annular brush is disposed above the annular brush.

[0007] By adopting the above technical solution, a filter cartridge installed inside the outer cylinder filters the incoming airflow. The engine load sensor transmits the engine's operating status to the moving mechanism, while the dust concentration sensor detects dust in the incoming gas. This real-time monitoring of dust concentration allows the moving mechanism to drive the annular brush to move vertically, cleaning the filter cartridge. The dust is carried by the airflow into the ash outlet pipe, and the filtered gas enters the exhaust pipe. This avoids the shortcomings of traditional pulse cleaning systems, such as complexity, high cost, and fixed blowing frequency that cannot be dynamically adjusted. It enables on-demand cleaning, prevents filter cartridge wear and energy waste caused by over-cleaning, avoids filtration efficiency reduction due to dust accumulation, ensures the cleanliness of the air entering the engine, and reduces maintenance costs.

[0008] Optionally, the moving mechanism includes a cylinder cover fixedly installed on the upper end of the outer cylinder, and an electric push rod is fixedly installed on the upper end of the cylinder cover.

[0009] By adopting the above technical solution, the outer cylinder can fix the cylinder cover, the cylinder cover can open and close the upper end of the outer cylinder, and the cylinder cover can fix the electric push rod.

[0010] Optionally, the telescopic end of the electric push rod slides through the cylinder cover, and a lifting plate is fixedly installed on the telescopic end of the electric push rod. The outer wall of the lifting plate is fixedly installed with the annular brush.

[0011] By adopting the above technical solution, the electric push rod can drive the lifting plate to move vertically, and the lifting plate can drive the annular brush to move vertically, thereby facilitating the cleaning of the inner wall of the filter cartridge by the annular brush.

[0012] Optionally, a threaded ring is welded to the lower end of the filter cartridge, and the threaded ring is threadedly connected to the inner wall of the outer cylinder.

[0013] By adopting the above technical solution, the filter cartridge can be positioned and installed by connecting the threaded ring to the inner wall of the outer cylinder.

[0014] Optionally, a support ring is welded to the inner wall of the outer cylinder located between the air outlet pipe and the ash outlet pipe, and a positioning ring is placed at the upper end of the support ring.

[0015] By adopting the above technical solution, the outer cylinder can fix the support ring, while the support ring can support and position the positioning ring.

[0016] Optionally, the inner wall of the positioning ring is welded to the upper end of the filter cartridge, and two handles are fixedly installed on the upper end of the positioning ring.

[0017] By adopting the above technical solution, the filter cartridge can fix the positioning ring, thereby further positioning the filter cartridge. The handle makes it convenient for workers to turn the filter screen and facilitates the fixed installation of the threaded ring and the inner wall of the outer cylinder.

[0018] Optionally, a solenoid valve is installed on the outer wall of the ash discharge pipe.

[0019] By adopting the above technical solution, the solenoid valve can be used to open and close the ash discharge pipe.

[0020] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0021] This technical solution uses a filter cartridge inside the outer cylinder to filter the incoming airflow. An engine load sensor transmits the engine's operating status to the moving mechanism, while a dust concentration sensor detects dust in the incoming gas. This real-time monitoring of dust concentration allows the moving mechanism to drive a ring brush to move vertically, cleaning the filter cartridge. Dust is carried by the airflow into the dust outlet pipe, while filtered gas enters the exhaust pipe. This avoids the drawbacks of traditional pulse cleaning systems, such as complexity, high cost, and fixed blowing frequency that cannot be dynamically adjusted. It enables on-demand cleaning, preventing filter cartridge wear and energy waste caused by over-cleaning, avoiding decreased filtration efficiency due to dust accumulation, ensuring the cleanliness of the air entering the engine, and reducing maintenance costs. Attached Figure Description

[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is an axial view schematic diagram of the structure of a self-cleaning air filter assembly according to this application;

[0024] Figure 2 This is a rear cross-sectional view of the structure of a self-cleaning air filter assembly according to this application;

[0025] Figure 3 This application describes the structure of a self-cleaning air filter assembly. Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This application describes the structure of a self-cleaning air filter assembly. Figure 2 Enlarged view of section B in the middle.

[0027] In the diagram: 1. Outer cylinder; 2. Filter cartridge; 3. Ash discharge pipe; 4. Solenoid valve; 5. Air outlet pipe; 6. Air inlet pipe; 7. Dust concentration sensor; 8. Engine load sensor; 9. Annular brush; 10. Threaded ring; 11. Support ring; 12. Positioning ring; 13. Handle; 14. Electric push rod; 15. Lifting plate; 16. Cylinder cover. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-4 This application provides a technical solution: a structure of a self-cleaning air filter assembly, including an outer cylinder 1 and a filter cartridge 2 disposed inside the outer cylinder 1. An air outlet pipe 5 is welded to the outer wall of the middle part of the outer cylinder 1. An engine load sensor 8 is installed on the outer wall of the air outlet pipe 5. A dust outlet pipe 3 is welded to the outer wall of the outer cylinder 1 on the side away from the air outlet pipe 5 above the filter cartridge 2. An air inlet pipe 6 is fixedly installed at the lower end of the outer cylinder 1. A dust concentration sensor 7 is installed on the outer wall of the air inlet pipe 6. An annular brush 9 is disposed above the filter cartridge 2, and the position of the annular brush 9 corresponds to the position of the inner ring wall of the filter cartridge 2. A moving mechanism for vertically moving the annular brush 9 is disposed above the annular brush 9.

[0030] In the technical solution of this application, a filter cartridge 2 is installed inside the outer cylinder 1 to filter the incoming airflow. The engine load sensor 8 can transmit the engine's working status to the moving mechanism, while the dust concentration sensor 7 can detect the dust in the incoming gas and monitor the dust concentration in real time. This allows the moving mechanism to drive the annular brush 9 to move vertically to clean the filter cartridge 2. The dust can enter the ash outlet pipe 3 with the airflow, and the filtered gas enters the air outlet pipe 5. This avoids the shortcomings of traditional pulse cleaning systems, such as complexity, high cost, and fixed blowing frequency that cannot be dynamically adjusted. It achieves on-demand cleaning, prevents filter cartridge 2 wear and energy waste caused by over-cleaning, avoids the decrease in filtration efficiency caused by dust accumulation, ensures the cleanliness of the air entering the engine, and reduces maintenance costs.

[0031] In the technical solution of this application, such as Figure 2 and Figure 4As shown, a threaded ring 10 is welded to the lower end of the filter cartridge 2. The threaded ring 10 is threadedly connected to the inner wall of the outer cylinder 1. The threaded connection between the threaded ring 10 and the inner wall of the outer cylinder 1 can serve as a positioning and installation function for the filter cartridge 2. A support ring 11 is welded to the inner wall of the outer cylinder 1 located between the air outlet pipe 5 and the ash outlet pipe 3. A positioning ring 12 is placed on the upper end of the support ring 11. The outer cylinder 1 can fix the support ring 11, and the support ring 11 can support and position the positioning ring 12. The inner wall of the positioning ring 12 is welded to the upper end of the filter cartridge 2. Two handles 13 are fixedly installed on the upper end of the positioning ring 12. The filter cartridge 2 can fix the positioning ring 12, thereby further positioning the filter cartridge 2. The handles 13 make it convenient for the operator to rotate the filter screen and facilitate the fixed installation of the threaded ring 10 and the inner wall of the outer cylinder 1.

[0032] In the technical solution of this application, such as Figure 1 and Figure 2 As shown, a solenoid valve 4 is installed on the outer wall of the ash discharge pipe 3. The solenoid valve 4 can be used to open and close the ash discharge pipe 3.

[0033] In the technical solution of this application, such as Figures 1-3 As shown, the moving mechanism includes a cylinder cover 16 fixedly installed on the upper end of the outer cylinder 1. An electric push rod 14 is fixedly installed on the upper end of the cylinder cover 16. The outer cylinder 1 can fix the cylinder cover 16, and the cylinder cover 16 can open and close the upper end of the outer cylinder 1. The cylinder cover 16 can also fix the electric push rod 14. The telescopic end of the electric push rod 14 slides through the cylinder cover 16. A lifting plate 15 is fixedly installed on the telescopic end of the electric push rod 14. The outer wall of the lifting plate 15 is fixedly installed with the annular brush 9. The electric push rod 14 can drive the lifting plate 15 to move vertically, and the lifting plate 15 can drive the annular brush 9 to move vertically, thereby facilitating the cleaning of the inner wall of the filter cylinder 2 by the annular brush 9.

[0034] In use, air enters the outer cylinder 1 through the air inlet pipe 6. The dust concentration sensor 7 detects the dust concentration in the gas in real time and feeds the data back to the terminal PLC. The engine load sensor 8 transmits the engine operating status information to the moving mechanism. When the dust concentration reaches the set value or the engine is under a specific load, the electric push rod 14 can drive the lifting plate 15 to move downward. Then, the lifting plate 15 can drive the annular brush 9 to move vertically. The annular brush 9 can clean the inner wall of the filter cylinder 2. After the dust attached to the filter cylinder 2 is brushed off, the solenoid valve on the dust outlet pipe 3... When the 4-way valve is turned on, the dust brushed off can be discharged through the dust outlet pipe 3 with the airflow. The filtered clean air enters the engine through the air outlet pipe 5. When cleaning is completed or the dust concentration is reduced to a reasonable range, the electric push rod 14 drives the ring brush 9 to reset, and the solenoid valve 4 closes the dust outlet pipe 3, waiting for the next cleaning. The solenoid valve 4, electric push rod 14, dust concentration sensor 7, engine load sensor 8 are electrically connected to the external PLC terminal. The dust concentration sensor 7 is model GP2Y1014AU0F, and the engine load sensor 8 is model Bosch LSU 4.9.

Claims

1. The structure of a self-cleaning air filter assembly, characterized in that: The device includes an outer cylinder (1) and a filter cartridge (2) disposed inside the outer cylinder (1). An air outlet pipe (5) is welded to the outer wall of the middle part of the outer cylinder (1). An engine load sensor (8) is installed on the outer wall of the air outlet pipe (5). A dust outlet pipe (3) is welded to the outer wall of the outer cylinder (1) located above the filter cartridge (2) on the side away from the air outlet pipe (5). An air inlet pipe (6) is fixedly installed at the lower end of the outer cylinder (1). A dust concentration sensor (7) is installed on the outer wall of the air inlet pipe (6). An annular brush (9) is provided above the filter cartridge (2), and the position of the annular brush (9) corresponds to the position of the inner ring wall of the filter cartridge (2). A moving mechanism for vertically moving the annular brush (9) is provided above the annular brush (9).

2. The structure of a self-cleaning air filter assembly according to claim 1, characterized in that, The moving mechanism includes a cylinder cover (16) fixedly installed on the upper end of the outer cylinder (1), and an electric push rod (14) is fixedly installed on the upper end of the cylinder cover (16).

3. The structure of a self-cleaning air filter assembly according to claim 2, characterized in that, The telescopic end of the electric push rod (14) slides through the cylinder cover (16), and the telescopic end of the electric push rod (14) is fixedly installed with a lifting plate (15). The outer wall of the lifting plate (15) is fixedly installed with the annular brush (9).

4. The structure of a self-cleaning air filter assembly according to claim 1, characterized in that, The lower end of the filter cylinder (2) is welded with a threaded ring (10), which is threadedly connected to the inner wall of the outer cylinder (1).

5. The structure of a self-cleaning air filter assembly according to claim 4, characterized in that, A support ring (11) is welded to the inner wall of the outer cylinder (1) located between the air outlet pipe (5) and the ash outlet pipe (3), and a positioning ring (12) is placed at the upper end of the support ring (11).

6. The structure of a self-cleaning air filter assembly according to claim 5, characterized in that, The inner wall of the positioning ring (12) is welded to the upper end of the filter cartridge (2), and two handles (13) are fixedly installed on the upper end of the positioning ring (12).

7. The structure of a self-cleaning air filter assembly according to claim 1, characterized in that, A solenoid valve (4) is installed on the outer wall of the ash discharge pipe (3).

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