Screw air compressor with air inlet mesh enclosure capable of rapidly removing dust

Abstract

The screw air compressor comprises an air inlet base, a mainframe box, an air inlet pipe and an air outlet port, the air inlet net cover is arranged in the air inlet pipe, a connecting ring base is integrally formed at the bottom of the air inlet net cover, and the connecting ring base is fixedly connected with the inner wall of the air inlet pipe through bolts; a mounting ring seat is movably arranged on the periphery of the air inlet pipe, a supporting gear ring is fixedly connected to the mounting ring seat, two first supports are fixed to the supporting gear ring at intervals, a second support is fixed between the two first supports, and elastic scraping bristles are densely distributed on the inner sides of the first supports and the second support; the scraping bristles are attached to the surface of the air inlet mesh enclosure, the supporting gear ring is meshed with a transmission gear, the bottom of the transmission gear is connected with a driving mechanism, and the problems that an existing cleaning mode of the air inlet mesh enclosure of the screw air compressor is long in consumed time, poor in cleaning effect and insufficient in real-time performance are solved.

Description

Technical Field

[0001] The invention relates to the field of compressors, and in particular to a screw air compressor with an air intake mesh cover for rapid dust removal. Background Art

[0002] As core industrial power equipment, screw air compressors generate high-pressure air through the meshing of screw rotors to compress air. They are widely used in industries such as machinery manufacturing, mining, and food processing. The air intake system's unobstructed flow directly determines the compressor's operating efficiency and service life. The air intake screen, a key filtering component at the intake end, intercepts impurities such as dust, fibers, and particulate matter, preventing contaminants from entering precision components such as the screw rotor and bearings within the main chassis, thereby preventing equipment failures caused by wear and blockage.

[0003] However, the air intake grilles of existing screw air compressors have significant defects in long-term use: a large amount of dust easily adheres to the surface of the air intake grille, especially in high-dust environments (such as cement plants and foundries). A dense dust layer can form within a few hours, causing a sudden increase in air intake resistance, a decrease in compressor suction volume by more than 30%, a reduction in exhaust efficiency, and a 15%-20% increase in energy consumption.

[0004] Traditional manual cleaning requires periodic downtime to remove the screen, a single operation that takes 30-60 minutes, severely impacting production continuity. Frequent disassembly can also loosen connecting components, reducing equipment sealing and increasing the risk of air leaks. Existing automatic dust removal devices often use fixed brushes or single drive structures, resulting in poor fit between the brush and screen, making dust accumulation in corners difficult to remove. Some devices rely on independent motor drives, consuming additional energy, and have complex transmission structures with high failure rates. Most dust removal devices only operate when the compressor is shut down and cannot be cleaned simultaneously while the compressor is running. This results in dust accumulation during operation that continuously affects air intake efficiency, leaving the main chassis in a "low-air" state for a long time, accelerating wear on the screw rotor and cylinder, and shortening the equipment life by 2-3 years.

[0005] Therefore, it is necessary to provide a new screw air compressor with a fast dust removal air intake screen to solve the above technical problems. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a screw air compressor with a fast dust removal air intake grille, which solves the problems of the existing screw air compressor air intake grille cleaning method being time-consuming, poor cleaning effect and insufficient real-time performance.

[0007] The screw air compressor with an air intake grille and rapid dust removal provided by the present invention comprises an air intake base, a main chassis, an air intake pipe, and an air outlet port. The air intake grille is built into the air intake pipe, and a connecting ring seat is integrally formed at the bottom of the air intake grille. The connecting ring seat is fixedly connected to the inner wall of the air intake pipe by bolts. A mounting ring seat is movably provided on the periphery of the air inlet pipe, a supporting gear ring is fixedly connected to the mounting ring seat, two first brackets are fixed on the supporting gear ring at intervals, a second bracket is fixed between the two first brackets, and the inner sides of the first bracket and the second bracket are densely covered with elastic scraping hairs, and the scraping hairs are in contact with the surface of the air inlet grille; The supporting gear ring engages with the transmission gear, and the bottom of the transmission gear is connected to the driving mechanism.

[0008] In a preferred embodiment, the driving mechanism includes: An air intake box is fixed to the side of the air intake base, wherein a support shaft is movably provided in the air intake box through a bearing, and a top end of the support shaft extends out of the air intake box and is keyed to the transmission gear; The middle section of the support shaft is fitted with a mounting sleeve, and the outer circumference of the mounting sleeve is radially fixed with a plurality of blades; The two sides of the air intake box are respectively connected to the air intake pipe and the air outlet pipe to form an air flow driving channel.

[0009] In a preferred embodiment, one end of the air inlet pipe is connected to the air inlet box, and the other end passes through the air guide ring plate on the top of the air outlet port; The inner diameter of the air guide ring plate is 1 / 3-1 / 2 of the inner diameter of the air outlet port, and the air inlet pipe is welded and sealed with the air outlet port.

[0010] In a preferred embodiment, a valve is installed on the air inlet pipe.

[0011] In a preferred embodiment, a vertical pole is fixed on the air inlet base, a main pipe is installed on one side of the vertical pole, and a plurality of air injection pipes are arranged at intervals on one side of the main pipe, the air injection pipes are connected to the main pipe, and the air outlets of the plurality of air injection pipes are all facing the air inlet mesh cover; The air outlet pipe is communicated with the main pipeline.

[0012] In a preferred embodiment, a motor is installed on the air intake base, and a bevel gear 1 is installed on the output end of the motor; A second bevel gear is installed on the top of the support shaft, and the first bevel gear is meshed with the second bevel gear.

[0013] In a preferred embodiment, a closed transmission is adopted between the bevel gear 1 and the bevel gear 2.

[0014] In a preferred embodiment, the motor is a non-self-locking asynchronous motor.

[0015] In a preferred embodiment, a plurality of sets of baffles are fixed on the air intake base, wherein a slide is provided between two sets of baffles, and the slide is fixed on the air intake base; A pre-filtering screen plate is provided on one side of the air inlet mesh cover, and the bottom of the pre-filtering screen plate is slidably connected to the slideway.

[0016] Beneficial effects of the present invention: 1. The elastic scraping hairs fit tightly and flexibly with the surface of the mesh cover, and the dual effects of 360° rotating scraping and high-pressure airflow blowing greatly improve the dust removal rate, reduce the intake resistance, and greatly increase the compressor suction volume; The pre-filter screen intercepts large particles of impurities, extending the cleaning cycle of the air intake screen to 7-10 days and reducing maintenance frequency.

[0017] 2. Real-time dust removal is achieved through airflow drive during operation without stopping the machine; deep cleaning is carried out by motor drive before and after shutdown, covering the entire life cycle of the equipment; The airflow drive mode uses the high-pressure air generated by the compressor itself as the power source, without the need for additional energy consumption. Compared with the dust removal device driven by an independent motor, it greatly saves energy. The air intake grille is kept unobstructed, avoiding abnormal temperature in the main box due to insufficient air intake, reducing thermal wear between the screw rotor and the cylinder body, and extending the equipment overhaul cycle.

[0018] 3. The transmission components (supporting gear ring, transmission gear, bevel gear) adopt a closed meshing design, which is dustproof and waterproof. The elastic scraper is a wearing part and can be replaced in just 10 minutes without the need for professional tools. The compact structure can be directly modified into various existing screw air compressors (power range 15-315kW). The inner diameter of the air guide ring plate can be adjusted according to the specifications of the outlet port (1 / 10-1 / 7), ensuring stable airflow driving pressure for equipment with different exhaust volumes. It is suitable for dust concentrations of 0.1-5g / m 3 various industrial environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The main structure of the screw air compressor with quick dust removal of the air intake mesh provided by the present invention is a three-dimensional view Figure 1 ; Figure 2 for Figure 1 A schematic diagram of the enlarged structure of shown; Figure 3 A structural view of the air inlet pipe provided by the present invention; Figure 4 The main structure of the screw air compressor with quick dust removal of the air intake mesh provided by the present invention is a three-dimensional view Figure 2 ; Figure 5 for Figure 4 The enlarged structural diagram of B is shown; Figure 6 This is a structural view of the air intake box provided by the present invention.

[0020] Numbers in the figure: 1. Air intake base; 2. Main chassis; 3. Air intake pipe; 4. Air outlet port; 5. Air intake mesh cover; 6. Connecting ring seat; 7. Mounting ring seat; 8. Support gear ring; 9. First bracket; 10. Second bracket; 11. Scraper; 12. Transmission gear; 13. Air intake box; 14. Support shaft; 15. Mounting sleeve; 16. Blade; 17. Air intake pipe; 18. Air outlet pipe; 19. Air guide ring plate; 20. Valve; 21. Vertical pole; 22. Main pipeline; 23. Jet pipe; 24. Motor; 25. Bevel gear one; 26. Bevel gear two; 27. Baffle plate; 28. Slide; 29. ​​Pre-filter plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 as well as Figure 6 ,in Figure 1 The main structure of the screw air compressor with quick dust removal of the air intake mesh provided by the present invention is a three-dimensional view Figure 1 ; Figure 2 for Figure 1 A schematic diagram of the enlarged structure of shown; Figure 3 A structural view of the air inlet pipe provided by the present invention; Figure 4 The main structure of the screw air compressor with quick dust removal of the air intake mesh provided by the present invention is a three-dimensional view Figure 2 ; Figure 5 for Figure 4 The enlarged structural diagram of B is shown; Figure 6 This is a structural view of the air intake box provided by the present invention.

[0023] In the specific implementation process, Figures 1-6As shown, it includes an air intake base 1, a main chassis 2, an air intake pipe 3 and an air outlet port 4. The air intake pipe 3 has a built-in air intake mesh cover 5. The bottom of the air intake mesh cover 5 is integrally formed with a connecting ring seat 6. The connecting ring seat 6 is fixedly connected to the inner wall of the air intake pipe 3 by bolts. A mounting ring seat 7 is movably provided on the periphery of the air intake pipe 3. A supporting gear ring 8 is fixedly connected to the mounting ring seat 7. Two first brackets 9 are fixed on the supporting gear ring 8 at intervals. A second bracket 10 is fixed between the two first brackets 9. The inner sides of the first bracket 9 and the second bracket 10 are densely covered with elastic scraping hairs 11, and the scraping hairs 11 fit the surface of the air intake mesh cover 5.

[0024] The supporting gear ring 8 engages with the transmission gear 12, and the bottom of the transmission gear 12 is connected to the driving mechanism. A plurality of baffles 27 are fixed on the air intake base 1, wherein a slide 28 is provided between two sets of baffles 27, and the slide 28 is fixed on the air intake base 1. A pre-filter screen 29 is provided on one side of the air intake mesh cover 5, and the bottom of the pre-filter screen 29 is slidably connected to the slide 28. Before the equipment is started, the outside air first passes through the pre-filter screen 29, which is slidably installed on the side of the air intake mesh cover 5 through the slide 28, and can pre-filter large particles of impurities such as sand and fiber clumps in the air, reducing the dust accumulation load of the air intake mesh cover 5. The baffle 27 forms lateral protection for the pre-filter screen 29 to avoid displacement caused by airflow impact, and at the same time facilitates the regular extraction of the pre-filter screen 29 for separate cleaning, thereby extending the maintenance cycle of the air intake mesh cover 5.

[0025] The drive mechanism comprises an air intake box 13 fixed to the side of the intake housing 1. A support shaft 14 is movably mounted within the air intake box 13 via a bearing. The top end of the support shaft 14 extends out of the air intake box 13 and is keyed to a transmission gear 12. A mounting sleeve 15 is mounted midway along the support shaft 14, with several blades 16 radially attached to its periphery. The air intake box 13 connects to an air intake pipe 17 and an air outlet pipe 18 on either side, forming an airflow drive channel. High-pressure air enters the air intake box 13 through the intake pipe 17, impacting the blades 16 (8-12 radially arranged blades made of aluminum alloy, 2-3mm thick) within the box. These blades propel the blades, driving the mounting sleeve 15 and the support shaft 14 to rotate (the speed is dynamically adjusted with airflow pressure, ranging from 30-60 rpm). The rotation of the support shaft 14, through the meshing of the transmission gear 12 and the support gear ring 8, drives the bracket and elastic scraper 11 to continuously scrape the air intake grille 5, achieving real-time dust removal during operation and preventing the formation of dust deposits.

[0026] One end of the air intake pipe 17 is connected to the air intake box 13, and the other end passes through the air guide ring plate 19 on the top of the air outlet port 4. The inner diameter of the air guide ring plate 19 is 1 / 10-1 / 7 of the inner diameter of the air outlet port 4. The air intake pipe 17 and the air outlet port 4 are welded and sealed. A valve 20 is installed on the air intake pipe 17. The valve 20 can flexibly adjust the air flow rate of the air intake pipe according to the working conditions: fully open the valve 20 in a high dust environment to enhance the driving and purge force; close the valve 20 in a low dust environment to reduce air flow loss.

[0027] When the device is in use, a small portion of the air compressed by the main chassis 2 enters the interior of the air inlet pipe 17 from the air outlet port 4. Since the opening area of ​​the air inlet pipe 17 is much smaller than the air outlet port 4, the gas pressure inside the air inlet pipe 17 is relatively high. When the gas enters the air inlet box 13, it will drive the blades 16 to move, and then drive the support shaft 14 to rotate. When the support shaft 14 rotates, it will drive the transmission gear 12 to rotate, and then the scraper 17 can scrape the surface of the air inlet mesh cover 5 to prevent it from being blocked.

[0028] A vertical rod 21 is fixed to the air intake base 1. A main pipe 22 is installed on one side of the vertical rod 21. A plurality of jet pipes 23 are arranged at intervals on one side of the main pipe 22. The jet pipes 23 are connected to the main pipe 22. The air outlets of the plurality of jet pipes 23 are all directed toward the air intake screen 5. The air outlet pipe 18 is connected to the main pipe 22. A motor 24 is installed on the air intake base 1. A bevel gear 1 25 is installed on the output end of the motor 24. A bevel gear 26 is installed on the top of the support shaft 14. The bevel gear 1 25 is meshed with the bevel gear 2 26. Before the air compressor is turned on and used, the motor 24 can be started. The rotation of the output end of the motor 24 drives the bevel gear 1 25 to rotate. Under the transmission action of the bevel gear 1 25 and the bevel gear 2 26, the support shaft 14 rotates accordingly. When the support shaft 14 rotates, it drives the transmission gear 12 to rotate. When the transmission gear 12 rotates, it drives the support gear ring 8 to rotate, thereby allowing the scraper 11 on the bracket to clean the surface of the air intake screen 5 to prevent it from being blocked. After the gas drives the blades 16 to rotate, they will come out from the outlet pipe 18 and enter the main pipe 22, and finally be ejected from the injection pipe 23 to the surface of the air inlet mesh cover 5 to further clean the dust on its surface.

[0029] A closed transmission is adopted between the bevel gear 1 25 and the bevel gear 2 26 to increase their service life, and the motor 24 is a non-self-locking asynchronous motor.

[0030] The present invention operates as follows: Before the equipment is started, ambient air first passes through a pre-filter 29, which is slidably mounted on the side of the air intake grille 5 via a slide 28. This pre-filters large particles (such as sand and fiber clumps) from the air, reducing dust accumulation on the air intake grille 5. A baffle 27 provides lateral protection for the pre-filter 29, preventing it from deflecting due to airflow. This also facilitates periodic removal of the pre-filter 29 for separate cleaning, extending the maintenance cycle of the air intake grille 5.

[0031] Before the air compressor is turned on for use, the motor 24 can be started. The output end of the motor 24 rotates, driving the bevel gear 1 25 to rotate. Under the transmission action of the bevel gear 1 25 and the bevel gear 2 26, the support shaft 14 rotates accordingly. When the support shaft 14 rotates, it drives the transmission gear 12 to rotate. When the transmission gear 12 rotates, it drives the support gear ring 8 to rotate, thereby causing the scraper 11 on the bracket to clean the surface of the air inlet grille 5 to prevent it from being blocked. When the device is in use, a small portion of the air compressed by the main chassis 2 enters the interior of the air inlet pipe 17 from the air outlet port 4. Since the opening area of ​​the air inlet pipe 17 is much smaller than the air outlet port 4, the gas pressure inside the air inlet pipe 17 is relatively high. When the gas enters the interior of the air inlet box 13, it drives the blade 16 to move, thereby driving the support shaft 14 to rotate. When the support shaft 14 rotates, it drives the transmission gear 12 to rotate, thereby allowing the scraper 17 to scrape the surface of the air inlet mesh cover 5 to prevent it from being blocked. At the same time, after the gas drives the blades 16 to rotate, they will come out from the outlet pipe 18 and enter the main pipe 22, and finally be sprayed out from the injection pipe 23 to the surface of the air inlet mesh cover 5 to further clean the dust on its surface.

[0032] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0033] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A screw air compressor with an air intake screen for rapid dust removal, comprising an air intake base (1), a main housing (2), an air intake pipe (3) and an air outlet port (4), characterized in that: The air inlet pipe (3) has an air inlet mesh cover (5) built in, and a connecting ring seat (6) is integrally formed at the bottom of the air inlet mesh cover (5), and the connecting ring seat (6) is fixedly connected to the inner wall of the air inlet pipe (3) by bolts; The outer periphery of the air inlet pipe (3) is provided with a mounting ring seat (7) which is fixedly connected to a supporting gear ring (8). Two first brackets (9) are fixed to the supporting gear ring (8) at intervals, and a second bracket (10) is fixed between the two first brackets (9). The inner sides of the first brackets (9) and the second brackets (10) are densely covered with elastic scraping hairs (11), and the scraping hairs (11) are in contact with the surface of the air inlet mesh cover (5); The supporting gear ring (8) engages with a transmission gear (12), and the bottom of the transmission gear (12) is connected to a driving mechanism.

2. The screw air compressor with rapid dust removal of air intake screen according to claim 1, characterized in that: The driving mechanism comprises: An air intake box (13) is fixed to the side of the air intake base (1), a support shaft (14) is movably provided in the air intake box (13) via a bearing, and a top end of the support shaft (14) extends out of the air intake box (13) and is key-connected to the transmission gear (12); A mounting sleeve (15) is sleeved on the middle section of the support shaft (14), and a plurality of blades (16) are fixed radially on the outer periphery of the mounting sleeve (15); The two sides of the air inlet box (13) are respectively connected to the air inlet pipe (17) and the air outlet pipe (18), forming an air flow driving channel.

3. The screw air compressor with quick dust removal of air intake screen according to claim 2, characterized in that: One end of the air inlet pipe (17) is connected to the air inlet box (13), and the other end passes through the air guide ring plate (19) at the top of the air outlet port (4); The inner diameter of the air guide ring plate (19) is 1 / 10-1 / 7 of the inner diameter of the air outlet port (4), and the air inlet pipe (17) and the air outlet port (4) are welded and sealed.

4. The screw air compressor with rapid dust removal of air intake screen according to claim 3, characterized in that: A valve (20) is installed on the air inlet pipe (17).

5. The screw air compressor with rapid dust removal of air intake screen according to claim 4, characterized in that: A vertical pole (21) is fixed on the air inlet base (1), a main pipe (22) is installed on one side of the vertical pole (21), and a plurality of air injection pipes (23) are arranged at intervals on one side of the main pipe (22), the air injection pipes (23) are connected to the main pipe (22), and the air outlets of the plurality of air injection pipes (23) are all directed toward the air inlet mesh cover (5); The air outlet pipe (18) is connected to the main pipe (22).

6. The screw air compressor with rapid dust removal of air intake screen according to claim 5, characterized in that: A motor (24) is mounted on the air intake base (1), and a bevel gear (25) is mounted on the output end of the motor (24); A second bevel gear (26) is mounted on the top of the support shaft (14), and the first bevel gear (25) is meshed with the second bevel gear (26).

7. The screw air compressor with rapid dust removal of air intake screen according to claim 6, characterized in that: A closed transmission is adopted between the bevel gear 1 (25) and the bevel gear 2 (26).

8. The screw air compressor with rapid dust removal through an air intake grille according to claim 5, characterized in that: The motor (24) is a non-self-locking asynchronous motor.

9. The screw air compressor with rapid dust removal through an air intake screen according to claim 5, characterized in that: A plurality of groups of baffles (27) are fixed on the air intake base (1), wherein a slideway (28) is provided between two groups of baffles (27), and the slideway (28) is fixed on the air intake base (1); A pre-filtering screen plate (29) is provided on one side of the air inlet screen (5), and the bottom of the pre-filtering screen plate (29) is slidably connected to the slideway (28).

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