A low resistance filter device with fluid guiding function

Abstract

This utility model relates to the field of filter technology and discloses a low-resistance filter device with fluid guiding function, including a filter barrel. The filter barrel has a clean air chamber inside, and a filter cartridge is provided on the top wall of the clean air chamber. A vent pipe is provided inside the filter cartridge, and an airflow channel is provided inside the vent pipe. An air outlet is provided on the surface of the vent pipe, and the air outlet is obliquely opened. Through the cooperation between the motor, the first transmission gear, the second transmission gear, the vent pipe, the rotating flange, and other structures, the vent pipe is made to rotate at a uniform speed inside the filter cartridge. By using the obliquely opened air outlet, the gas to be filtered is evenly sprayed and distributed to the entire inner wall of the filter cartridge. This solves the problem of wasted effective filtration area caused by gas concentrating and passing through a local area. It realizes the all-round and high-efficiency utilization of the filter cartridge and can prevent excessive dust accumulation in a local area, reducing the operating resistance of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a low-resistance filter device with fluid guiding function. Background Technology

[0002] Compressed gas filters are a common type of gas purification device that can filter impurities in compressed gas to achieve cleanliness standards. In existing compressed gas filters, compressed gas is typically introduced into the filter through an inlet pipe, where it passes through an internal filter element to filter impurities, and then discharged through an outlet pipe for collection.

[0003] In the prior art, Chinese utility model patent CN219482000U discloses a compressed gas filter. Although the above-mentioned prior art solves the problem of needing to frequently adjust the overall orientation or use additional elbows when connecting the filter to gas collection devices in different locations, in actual use, because the filter adopts a traditional fixed flow channel, after the filtered gas enters from the inlet pipe, its flow path and velocity distribution inside the filter are fixed. The gas will pass through the filter element in a local area near the inlet pipe, while the filter element in other areas is not fully utilized, resulting in a waste of effective filtration area. In addition, the area where the airflow is concentrated will accumulate pollutants first, which will increase the resistance of the filter element when the airflow passes through, shortening the cleaning cycle and service life of the entire filter element. In view of this, we propose a low-resistance filter device with fluid guiding function to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a low-resistance filter device with fluid guiding function, thereby solving the problem of poor practicality of some existing filter devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-resistance filter device with fluid guiding function, comprising a filter barrel, a clean air chamber inside the filter barrel, a filter cartridge on the top wall of the clean air chamber, a vent pipe inside the filter cartridge, an airflow channel inside the vent pipe, an air outlet on the surface of the vent pipe, the air outlet being obliquely opened, the upper end of the vent pipe rotatably extending through the upper side of the filter barrel, a first air inlet pipe at the upper end of the vent pipe, a rotating flange between the first air inlet pipe and the vent pipe, a support frame fixedly fitted outside the first air inlet pipe, the support frame being fixedly connected to the filter barrel, a fixing block fixedly connected to the upper surface of the filter barrel, the fixing block rotatably fitted outside the vent pipe, a cavity inside the fixing block, a transmission component inside the cavity, and support legs outside the filter barrel.

[0006] Preferably, a dust collection hopper is provided on the lower side of the filter cartridge, and a first mounting ring is fixedly fitted on the outside of both the dust collection hopper and the filter cartridge. The two first mounting rings are connected by bolts. A third mounting ring is fixedly fitted on the upper surface of the filter cartridge, and the third mounting ring is also connected to the top wall of the filter cartridge by bolts.

[0007] Preferably, an assembly cover is provided on the lower side of the filter barrel, and a second mounting ring is fixedly fitted on both the assembly cover and the outside of the filter barrel, and the two second mounting rings are connected by bolts.

[0008] Preferably, a movable ring is provided on the outside of the filter barrel, and an air outlet pipe is provided on the outside of the movable ring. Both the air outlet pipe and the movable ring are connected to the inside of the filter barrel.

[0009] Preferably, the transmission assembly includes a first transmission gear, which is rotatably connected to the inside of the cavity via a shaft, and a second transmission gear is fixedly sleeved on the outside of one end of the vent pipe located inside the cavity, and the first transmission gear and the second transmission gear are meshed together.

[0010] Preferably, a motor is fixedly connected to the upper surface of the fixed block, and the output shaft of the motor rotates through the interior of the fixed block and is fixedly connected to the shaft of the first transmission gear.

[0011] Preferably, the filter barrel has an annular chamber inside its side wall, a first backflush channel is formed on the inner wall of the annular chamber, and a second backflush channel is formed on the inner wall of the filter barrel, the second backflush channel and the first backflush channel being connected.

[0012] Preferably, a second air inlet pipe is fixedly connected to the outside of the filter barrel, and the second air inlet pipe is connected to the annular chamber.

[0013] Compared with the prior art, this utility model provides a low-resistance filter device with fluid guiding function, which has the following beneficial effects: 1. This low-resistance filter device with fluid guiding function achieves uniform rotation of the air pipe inside the filter cartridge through the cooperation of the motor, first transmission gear, second transmission gear, air pipe, rotating flange and other structures. By using the obliquely opened air outlet, the gas to be filtered is evenly sprayed and distributed to the entire inner wall of the filter cartridge. This solves the problem of wasted effective filtration area caused by gas concentrating through a local area. It realizes the all-round and high-efficiency utilization of the filter cartridge, and can prevent excessive dust accumulation in a local area, reduce the operating resistance of the equipment and extend the service life of the filter cartridge.

[0014] 2. This low-resistance filter device with fluid guidance function can partially offset the torque required for motor drive by the reaction force generated when the gas is ejected through the oblique air outlet, thus playing an auxiliary driving role and helping to reduce system energy consumption.

[0015] 3. This low-resistance filter device with fluid guidance function can achieve back-flushing and dust removal of the filter cartridge through the cooperation between the annular chamber, the first back-flushing channel and the second back-flushing channel, which further ensures that the equipment operates stably in a low-resistance state for a long time and reduces the frequency of manual maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a low-resistance filter device with fluid guiding function according to this utility model; Figure 2 This is a schematic diagram of the structure of the filter barrel of this utility model; Figure 3 This is a cross-sectional view of the filter barrel of this utility model; Figure 4 This is a cross-sectional view of the vent pipe of this utility model; Figure 5 for Figure 3 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the structure of the first backflush channel of this utility model.

[0017] In the diagram: 1. Filter barrel; 2. Clean air chamber; 3. Filter cartridge; 4. Vent pipe; 5. Airflow channel; 6. Air outlet; 7. Second air inlet pipe; 8. Rotating flange; 9. First air inlet pipe; 10. Support frame; 11. Fixing block; 12. Cavity; 13. Dust collection hopper; 14. First mounting ring; 15. Movable ring; 16. Air outlet pipe; 17. Assembly cover; 18. Second mounting ring; 19. First transmission gear; 20. Second transmission gear; 21. Motor; 22. Third mounting ring; 23. Annular chamber; 24. First backflush channel; 25. Second backflush channel; 26. Support leg. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-6This utility model provides a technical solution: a low-resistance filter device with fluid guiding function, including a filter barrel 1, a clean air chamber 2 inside the filter barrel 1, a filter cartridge 3 for filtering gas on the top wall of the clean air chamber 2, a vent pipe 4 inside the filter cartridge 3, an airflow channel 5 for gas flow inside the vent pipe 4, and an air outlet 6 for ejecting gas on the surface of the vent pipe 4. The air outlet 6 is obliquely opened, so that when the vent pipe 4 rotates, the gas is ejected from the oblique hole, which will generate a reaction force on the air outlet pipe itself, and the generated force can partially offset the torque required by the power source. In addition, the oblique hole can guide the gas to a wider angle, and the rotational motion forces the gas to be more evenly distributed on the inner wall of the entire surrounding filter cartridge 3. The filter barrel 1 is rotated through the upper side of the filter barrel 1. The upper end of the vent pipe 4 is provided with a first air inlet pipe 9 for introducing the gas to be filtered. A rotating flange 8 is provided between the first air inlet pipe 9 and the vent pipe 4 for connection. A support frame 10 is fixedly sleeved on the outside of the first air inlet pipe 9 for support. The support frame 10 is fixedly connected to the filter barrel 1, thereby realizing the support and fixation of the first air inlet pipe 9. A fixing block 11 is fixedly connected to the upper surface of the filter barrel 1. The fixing block 11 is rotatably sleeved on the outside of the vent pipe 4. A cavity 12 is opened inside the fixing block 11. A transmission component is provided inside the cavity 12. A support leg 26 is provided on the outside of the filter barrel 1. The support leg 26 can be raised and lowered. This is a known technology in the art. For details, please refer to the prior art with the publication number CN219482000U. Therefore, it will not be described in detail.

[0020] A dust collection hopper 13 is provided on the lower side of the filter cartridge 3. Both the dust collection hopper 13 and the filter cartridge 3 are fixedly fitted with first mounting rings 14 for installation. The two first mounting rings 14 are connected by bolts. A third mounting ring 22 for installation is fixedly fitted on the upper surface of the filter cartridge 3. The third mounting ring 22 is also connected to the top wall of the filter cartridge 1 by bolts. The first mounting rings 14 facilitate the disassembly of the dust collection hopper 13, and the third mounting ring 22 facilitates the disassembly of the filter cartridge 3, thereby facilitating periodic maintenance and cleaning.

[0021] An assembly cover 17 is provided on the lower side of the filter barrel 1. Both the assembly cover 17 and the filter barrel 1 are fixedly fitted with second mounting rings 18 for installation. The two second mounting rings 18 are connected by bolts. The second mounting rings 18 facilitate the separation of the assembly cover 17 and the filter barrel 1. Subsequently, the dust collection hopper 13 can be disassembled with the help of the first mounting ring 14 and bolts.

[0022] The filter barrel 1 is provided with a movable ring 15 on the outside, and an outlet pipe 16 for discharging the filtered gas is provided on the outside of the movable ring 15. Both the outlet pipe 16 and the movable ring 15 are connected to the inside of the filter barrel 1. The cooperation between the movable ring 15 and the outlet pipe 16 facilitates the discharge of the treated gas.

[0023] In the above embodiments, the movable ring 15 and the air outlet pipe 16 are existing structures, and their assembly method with the filter barrel 1 is a well-known technology in the art. For details, please refer to the prior art with announcement number CN219482000U, so it will not be described again in the text.

[0024] The transmission assembly includes a first transmission gear 19 for transmission. The first transmission gear 19 is rotatably connected to the inside of the cavity 12 via a shaft. A second transmission gear 20, also for transmission, is fixedly sleeved on the outside of one end of the vent pipe 4 located inside the cavity 12. The first transmission gear 19 and the second transmission gear 20 are meshed together. The rotation of the first transmission gear 19 can drive the rotation of the second transmission gear 20, thereby driving the rotation of the vent pipe 4, thus achieving uniform gas distribution inside the filter cartridge 3. Under the action of the rotating flange 8, the first air inlet pipe 9 can remain stable.

[0025] A motor 21 for providing power is fixedly connected to the upper surface of the fixed block 11. The output shaft of the motor 21 rotates through the interior of the fixed block 11 and is fixedly connected to the shaft of the first transmission gear 19 through a coupling. The first transmission gear 19 can be driven to rotate by starting the motor 21 through an external controller.

[0026] In the above embodiments, the motor 21 is also equipped with a power supply, wires, a controller, and a microcomputer, etc. Since these are not the main structures, they will not be described in detail here.

[0027] The filter barrel 1 has an annular chamber 23 inside its side wall. The inner wall of the annular chamber 23 has a first backflush channel 24. The inner wall of the filter barrel 1 has a second backflush channel 25. The second backflush channel 25 and the first backflush channel 24 are connected.

[0028] The filter cartridge 1 is fixedly connected to a second air inlet pipe 7, which is connected to the annular chamber 23. Through the connection of an external air source and the second air inlet pipe 7, the external airflow will enter the interior of the annular chamber 23 and then blow out from the first backflush channel 24 and the second backflush channel 25 to achieve backflushing of the filter cartridge 3, so as to reduce the frequency of cleaning of the filter cartridge 3 by the staff and improve the filtration efficiency of the filter cartridge 3.

[0029] Working principle: In use, this low-resistance filter device with fluid guidance function allows the gas to be filtered to enter through the first inlet pipe 9. Subsequent gas enters the interior of the vent pipe 4 and exits through the outlet 6. Simultaneously, the motor 21, activated by an external controller, drives the first transmission gear 19 to rotate. The rotation of the first transmission gear 19 drives the rotation of the second transmission gear 20, which in turn drives the rotation of the vent pipe 4. This ensures that the gas is evenly distributed inside the filter cartridge 3. The first inlet pipe 9 remains stable under the action of the rotating flange 8. As the vent pipe 4 rotates, gas is ejected from the oblique holes, generating a reaction force on the outlet pipe itself. This force partially offsets the torque required by the power source. Furthermore, the oblique holes guide the gas at a wider angle, and the rotational motion forces the gas to distribute more evenly across the entire inner wall of the surrounding filter cartridge 3. Ultimately, the filter cartridge 3 filters the gas. The treated gas is then easily discharged through the interaction between the movable ring 15 and the outlet pipe 16.

[0030] In addition, by connecting an external air source and a second air inlet pipe 7, external airflow enters the interior of the annular chamber 23 and is then blown out from the first backflush channel 24 and the second backflush channel 25 to achieve backflushing of the filter cartridge 3, thereby reducing the frequency of cleaning the filter cartridge 3 by the staff and improving the filtration efficiency of the filter cartridge 3.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-resistance filter device with fluid guiding function, comprising a filter barrel (1), characterized in that: The filter barrel (1) has a clean air chamber (2) inside. The top wall of the clean air chamber (2) is provided with a filter cylinder (3). The filter cylinder (3) has a vent pipe (4) inside. The vent pipe (4) has an airflow channel (5) inside. The surface of the vent pipe (4) has an air outlet (6) which is obliquely opened. The upper end of the vent pipe (4) rotates through the upper side of the filter barrel (1). The upper end of the vent pipe (4) is provided with a first air inlet pipe (9). A rotating flange (8) is provided between the air inlet pipe (4) and the air vent pipe (4). A support frame (10) is fixedly sleeved on the outside of the first air inlet pipe (9). The support frame (10) is fixedly connected to the filter barrel (1). A fixing block (11) is fixedly connected to the upper surface of the filter barrel (1). The fixing block (11) is rotatably sleeved on the outside of the air inlet pipe (4). A cavity (12) is opened inside the fixing block (11). A transmission component is provided inside the cavity (12). A support leg (26) is provided on the outside of the filter barrel (1).

2. A low-resistance filter device with fluid guiding function according to claim 1, characterized in that: A dust collection hopper (13) is provided on the lower side of the filter cartridge (3). A first mounting ring (14) is fixedly fitted on the outside of both the dust collection hopper (13) and the filter cartridge (3). The two first mounting rings (14) are connected by bolts. A third mounting ring (22) is fixedly fitted on the upper surface of the filter cartridge (3). The third mounting ring (22) is also connected to the top wall of the filter barrel (1) by bolts.

3. A low-resistance filter device with fluid guiding function according to claim 2, characterized in that: An assembly cover (17) is provided on the lower side of the filter barrel (1). A second mounting ring (18) is fixedly fitted on the outside of both the assembly cover (17) and the filter barrel (1). The two second mounting rings (18) are connected by bolts.

4. A low-resistance filter device with fluid guiding function according to claim 3, characterized in that: The filter barrel (1) is provided with a movable ring (15) on the outside, and an air outlet pipe (16) is provided on the outside of the movable ring (15). Both the air outlet pipe (16) and the movable ring (15) are connected to the inside of the filter barrel (1).

5. A low-resistance filter device with fluid guiding function according to claim 4, characterized in that: The transmission assembly includes a first transmission gear (19), which is rotatably connected to the inside of the cavity (12) via a shaft. A second transmission gear (20) is fixedly sleeved on the outside of one end of the vent pipe (4) located inside the cavity (12). The first transmission gear (19) and the second transmission gear (20) are meshed together.

6. A low-resistance filter device with fluid guiding function according to claim 5, characterized in that: A motor (21) is fixedly connected to the upper surface of the fixed block (11). The output shaft of the motor (21) rotates through the interior of the fixed block (11) and is fixedly connected to the shaft of the first transmission gear (19).

7. A low-resistance filter device with fluid guiding function according to claim 6, characterized in that: The filter barrel (1) has an annular chamber (23) inside its side wall. The inner wall of the annular chamber (23) has a first backflush channel (24). The inner wall of the filter barrel (1) has a second backflush channel (25). The second backflush channel (25) and the first backflush channel (24) are connected.

8. A low-resistance filter device with fluid guiding function according to claim 7, characterized in that: The filter barrel (1) is fixedly connected to a second air inlet pipe (7), which is connected to the annular chamber (23).

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