Self-cleaning system for air inlet of air compressor

By designing a self-cleaning system that connects the jet pipe and the exhaust pipe at the air compressor inlet, and using a solenoid valve to control the jet pipe to slide and eject gas to clean the air inlet, the problem of air inlet blockage is solved, and automated cleaning and efficient air intake are achieved.

CN224161815UActive Publication Date: 2026-04-24KOBELCO COMPRESSORS MFG (SHANGHAI) CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KOBELCO COMPRESSORS MFG (SHANGHAI) CORP
Filing Date
2025-06-13
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Air compressor inlets are easily clogged by fine particles and debris, leading to reduced intake efficiency and requiring frequent manual maintenance, which is especially inconvenient in harsh environments.

Method used

Design an air compressor inlet self-cleaning system. The system connects the air inlet to the exhaust pipe and uses a solenoid valve to control the air inlet to slide on a slide rail. Compressed gas is periodically sprayed out to clean the air inlet. The air inlet is equipped with straight and angled air inlets to cover the entire air inlet area. The slide rail is set perpendicular to the air inlet to efficiently cover all air inlets.

Benefits of technology

It enables automatic and regular cleaning of the air compressor inlet, avoiding the hassle of manual maintenance, improving air intake efficiency, and ensuring the stable operation of the air compressor.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to a self-cleaning system for an air inlet of an air compressor. The self-cleaning system comprises a shell of the air compressor, the air inlet formed in the side wall of the shell, an exhaust pipe for outputting compressed air, an air spraying pipe for blowing air to the area of the air inlet, a sliding rail for installing the air spraying pipe in a sliding mode and a driving piece for driving the air spraying pipe to slide. A plurality of straight air injection holes are uniformly formed in one side, close to the air inlet, of the air injection pipe in the length direction of the air injection pipe; the sliding rail is installed on the inner side wall of the shell, and the air spraying pipe and the sliding rail intersect. The sliding direction of the sliding rail and the length direction of the air spraying pipe correspond to an air inlet area composed of the multiple air inlets. The air spraying pipe is communicated with the exhaust pipe through a connecting pipe, and an electromagnetic valve is arranged on the connecting pipe. The electromagnetic valve is regularly controlled to be opened and closed through the system, the air spraying pipe is regularly controlled to slide on the sliding rail, and the air spraying pipe sprays compressed air through the straight air spraying hole to blow away dust or foreign matter attached to the air inlet, so that the effect of regularly self-cleaning the air inlet is achieved.
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Description

Technical Field

[0001] This application relates to the technical field of air compressors, and in particular to a self-cleaning system for an air compressor inlet. Background Technology

[0002] An air compressor is a device used to compress gases, and its construction is similar to that of a water pump. Most air compressors are reciprocating piston type, using rotating vanes or a rotating screw to generate strong air pressure, which absorbs and compresses outside air.

[0003] In related technologies, air compressors need to draw air from the surrounding environment to generate high-pressure gas. Since air often contains many fine particles and lightweight debris, these particles can clog the air compressor's intake as it operates, affecting intake efficiency and the compressor's normal operation. Therefore, after a period of continuous operation, air compressors often require inspection and maintenance to clean clogged intakes and ensure proper air intake. Furthermore, in harsh environments, air compressor intakes are more prone to clogging, necessitating frequent and inconvenient maintenance.

[0004] In view of the above-mentioned related technologies, this application proposes a system for automatically cleaning the air inlet of an air compressor periodically. Utility Model Content

[0005] This application provides a self-cleaning system for the air inlet of an air compressor, which adopts the following technical solution:

[0006] A self-cleaning system for an air compressor inlet includes an air compressor housing, an air inlet disposed on the side wall of the housing, and an exhaust pipe for outputting compressed gas from the air compressor. It also includes a jet pipe for blowing air into the inlet area, a slide rail for slidably mounting the jet pipe, and a driving component for driving the jet pipe to slide. The jet pipe has a set of straight jet holes on the side near the air inlet, and multiple straight jet holes are evenly arranged along the length of the jet pipe. The slide rail is mounted on the inner side wall of the housing, and the jet pipe intersects with the slide rail. The sliding direction of the slide rail and the length direction of the jet pipe correspond to the air inlet area formed by the multiple air inlets. A connecting pipe is provided between the jet pipe and the exhaust pipe, connecting the jet pipe and the exhaust pipe, and a solenoid valve is installed on the connecting pipe.

[0007] By adopting the above technical solution, the jet pipe and the exhaust pipe are connected by a connecting pipe, eliminating the need for them to be directly adjacent, thus facilitating flexible installation of the jet pipe. The system periodically controls the opening and closing of the solenoid valve and the periodic sliding of the jet pipe on the slide rail, outputting compressed gas from the exhaust pipe to the jet pipe. The jet pipe ejects compressed gas through multiple straight jet holes, blowing away dust or foreign objects adhering to the air inlet, preventing blockage and achieving automatic self-cleaning of the air inlet. The solenoid valve can automatically control the flow of high-pressure gas. The sliding direction of the slide rail and the length direction of the jet pipe correspond to the air intake area composed of multiple air inlets. The jet pipe is driven by a drive component to move on the slide rail, and its movement trajectory lies within the air intake area, ensuring that all air inlets are cleaned. Through system control, periodic automatic cleaning of the air inlets can be achieved.

[0008] Preferably, the axis of the direct jet nozzle is perpendicular to the side wall of the housing where the air inlet is located.

[0009] By adopting the above technical solution, the axis of the direct jet nozzle is parallel to the axis of the air inlet. After the compressed gas is ejected from the direct jet nozzle, it can pass straight through the air inlet. The parallel airflow will not cause significant resistance to the normal air intake of the air compressor, avoid local pressure loss caused by the tilt of the jet angle, and ensure the operational stability of the air compressor.

[0010] Preferably, the jet pipe is further provided with an oblique jet hole on the side near the air inlet, the central axis of the oblique jet hole intersects with the central axis of the jet pipe, the straight jet hole and the oblique jet hole are distributed along the circumference of the jet pipe, and oblique jet holes are provided on both sides of the straight jet hole; multiple straight jet holes and oblique jet holes on both sides are evenly arranged along the length of the jet pipe.

[0011] By adopting the above technical solution, multiple oblique jet holes enhance the blowing force against dust or foreign objects attached to the sidewall of the housing at the edge of the air inlet, which is beneficial for removing dust or foreign objects from the sidewall of the housing at the edge of the air inlet.

[0012] Preferably, the straight jet holes and the oblique jet holes are arranged alternately along the length of the jet pipe.

[0013] By adopting the above technical solution, the direct jet nozzles and oblique jet nozzles are arranged alternately along the length of the jet pipe, so that the blowing area of ​​the jet pipe can completely cover the entire air intake area, ensuring the cleaning quality.

[0014] Preferably, the slide rail is a linear guide rail, which is arranged along the length or width of the air intake area, and the length of the slide rail is set to correspond to the length or width of the air intake area; the jet pipe is arranged perpendicular to the slide rail, and the length of the jet pipe is set to correspond to the width or length of the air intake area.

[0015] By adopting the above technical solution, the movement trajectory of the jet pipe on the slide rail can cover the air intake area, ensuring that all air intakes can be cleaned; the jet pipe is set perpendicular to the slide rail so that the jet pipe only needs to move in one direction to cover the air intake, which is more efficient than oblique or multi-axis movement.

[0016] Preferably, the slide rail is located on one side edge of the air intake area, and one end of the jet pipe is slidably mounted on the slide rail.

[0017] By adopting the above technical solution, the slide rail and jet pipe are fixedly installed in this way, avoiding the slide rail and jet pipe blocking part of the air intake area when not in use, thus affecting the air intake efficiency.

[0018] Preferably, a slide table is slidably mounted on the slide rail, and the end of the jet pipe is fixed on the slide table; a connecting plate parallel to the slide table is fixed to the end of the jet pipe, the connecting plate is detachably fixed to the slide table, and the end of the jet pipe is detachably fixed to the connecting pipe.

[0019] By adopting the above technical solution, the jet pipe can be detachably fixed to the slide table of the slide rail through the end-fixed connecting plate, and the jet pipe and the connecting pipe can be detachably fixed. When the jet pipe is damaged, there is no need to replace the entire structure. Just remove the connecting plate and disconnect the jet pipe and the connecting pipe, replace the new jet pipe and the connecting plate, and finally connect the new jet pipe and the connecting pipe, thus saving installation costs.

[0020] Preferably, the jet pipe includes a hollow tube and an end sleeve. The hollow tube is a hollow tube body closed at both ends, and an air passage connector is provided at the end of the hollow tube near the connecting pipe corresponding to the connecting pipe. The end sleeve is a cylinder that extends through both ends, and the end of the hollow tube near the connecting pipe is inserted and fixed in the end sleeve and fixed to the end sleeve. The end sleeve is fixed to the connecting plate.

[0021] By adopting the above technical solution, when the jet pipe is damaged and needs to be replaced, it is only necessary to first disconnect the jet pipe and the connecting pipe, then pull the jet pipe out of the end sleeve, insert the new jet pipe into the end sleeve, and finally connect the new jet pipe and the exhaust pipe, which further saves installation costs.

[0022] Preferably, the driving component includes a ball screw and a drive motor. The ball screw is arranged along the length of the slide rail, and its two ends are rotatably mounted at both ends of the slide rail. The drive motor is mounted on the inner side wall of the housing and located at the end of the slide rail. The output shaft of the drive motor is coaxially fixed with the ball screw. A threaded hole that mates with the ball screw is provided through the slide platform, and the ball screw mates with the threaded hole on the slide platform and passes through the slide platform.

[0023] By adopting the above technical solution, the drive motor rotates the ball screw, which converts the rotational motion into linear motion. The rotation of the ball screw causes the slide table to slide on the slide rail, the slide table causes the connecting plate to slide, and the connecting plate causes the jet pipe to slide.

[0024] Preferably, a filter screen is fixed on the inner sidewall of the housing corresponding to the air intake area.

[0025] By adopting the above technical solution, a filter screen can be installed in the air intake area on the inner side wall of the housing, which can effectively filter out most of the dust or foreign objects. At the same time, the jet pipe will also clean the filter cotton or filter screen, so that the filter cotton or filter screen can be used for a long time without replacement, saving installation costs.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By installing a slide rail on one edge of the air intake area on the inner wall of the air compressor housing, an air jet pipe with multiple direct jet holes, and a connecting pipe connecting the air jet pipe and the exhaust pipe, compressed gas is output from the exhaust pipe to the air jet pipe through the connecting pipe. The air jet pipe sprays compressed gas through the multiple direct jet holes, blowing away dust or foreign objects adhering to the air intake, preventing air intake blockage, and achieving the effect of air intake self-cleaning. By installing a solenoid valve on the connecting pipe, the system periodically controls the opening and closing of the solenoid valve to achieve the effect of periodically cleaning the air intake.

[0028] 2. Multiple oblique jet holes are arranged alternately with the straight jet holes on the jet pipe, so that the blowing area of ​​the jet pipe can completely cover the entire air intake area, ensuring the cleaning quality.

[0029] 3. The length of the slide rail is set to correspond to the length or width of the air intake area, and the jet pipe is set perpendicular to the slide rail. The length of the jet pipe is set to correspond to the width or length of the air intake area, so that the movement trajectory of the jet pipe on the slide rail can cover the air intake area, ensuring that all air intakes can be cleaned. At the same time, the jet pipe only needs to move in one direction to cover the air intake, which is more efficient than oblique or multi-axis movement. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0031] Figure 2 This is a side view diagram of an embodiment of this application.

[0032] Reference numerals: 1. Air inlet; 2. Jet pipe; 21. Hollow tube; 22. End sleeve; 23. Connecting plate; 3. Exhaust pipe; 4. Connecting pipe; 5. Solenoid valve; 6. Sliding assembly; 61. Slide rail; 62. Drive component; 621. Ball screw; 622. Drive motor; 7. Straight jet nozzle; 8. Angled jet nozzle; 9. Housing. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail.

[0034] This application discloses a self-cleaning system for the air inlet of an air compressor.

[0035] refer to Figure 1 A self-cleaning system for an air compressor inlet 1 includes an air compressor housing 9, multiple air inlets 1 disposed on the inner sidewall of the housing 9, a jet pipe 2 for blowing air into the area of ​​the air inlet 1, an exhaust pipe 3 for outputting compressed gas from the air compressor, a connecting pipe 4 connecting the jet pipe 2 and the exhaust pipe 3, a solenoid valve 5, and a sliding assembly 6 for sliding the jet pipe 2. The multiple air inlets 1 form a rectangular air intake area; the sliding assembly 6 is located inside the housing 9, and the jet pipe 2 is slidably mounted on the sliding assembly 6; one end of the connecting pipe 4 is connected to the end of the jet pipe 2 via an air passage connector, and the other end of the connecting pipe 4 is fixed to the sidewall of the exhaust pipe 3 and connected to the exhaust pipe 3; the solenoid valve 5 is mounted on the exhaust pipe 3, and the system periodically controls the opening and closing of the solenoid valve 5 to output compressed gas from the exhaust pipe 3 to the jet pipe 2. In this embodiment, a filter screen is fixedly installed on the inner sidewall of the housing 9 corresponding to the air intake area by bolts.

[0036] refer to Figure 2 The jet pipe 2 includes a hollow tube 21, an end sleeve 22, and a connecting plate 23. The hollow tube 21 is a hollow tube body closed at both ends, and the end of the hollow tube 21 near the connecting pipe 4 is connected to the connecting pipe 4. A straight jet hole 7 and an oblique jet hole 8 are provided along the length of the hollow tube 21 on the side near the air intake area, and the straight jet hole 7 and oblique jet hole 8 are distributed circumferentially along the jet pipe 2. The axis of the straight jet hole 7 is perpendicular to the side wall of the housing 9, and multiple straight jet holes 7 are evenly arranged along the length of the hollow tube 21. The oblique jet holes 8 are distributed along the length of the jet pipe 2. Multiple oblique jet holes 8 are evenly arranged on both sides of the straight jet hole 7. The straight jet hole 7 and the oblique jet hole 8 are arranged alternately along the length direction of the jet pipe 2. The central axis of the oblique jet hole 8 intersects the central axis of the jet pipe 2. The end sleeve 22 is a cylinder that passes through both ends. The end sleeve 22 is fitted on the end of the hollow tube 21 near the connecting tube 4. The hollow tube 21 passes through the sleeve and is locked and fixed to the end sleeve 22 by screws provided on the sleeve. The connecting plate 23 is welded and fixed to one side of the end sleeve 22. The connecting plate 23 is slidably mounted on the sliding assembly 6.

[0037] The length of the jet pipe 2 is set to correspond to the length of the air intake area. Through the above settings, the movement trajectory of the jet pipe 2 on the slide rail 61 can cover the air intake area, ensuring that all air intakes 1 can be cleaned. Moreover, the jet pipe 2 only needs to move in one direction to cover the air intake 1, which is more efficient than oblique or multi-axis movement.

[0038] Reference Figure 1 and Figure 2 The sliding assembly 6 includes a slide rail 61 and a drive component 62. The slide rail 61 is a linear guide rail, welded and fixed to the inner side wall of the housing 9. The slide rail 61 is located at one edge of the air intake area, and is arranged along the width direction of the air intake area, with its length corresponding to the width of the air intake area. The drive component 62 includes a ball screw 621 and a drive motor 622. The ball screw 621 is arranged along the length direction of the slide rail 61, and its two ends are rotatably mounted on the two ends of the slide rail 61 through threaded structures on the slide rail 61. The drive motor 622 is welded and fixed to the inner side of the housing 9. The motor 622 is located at one end of the slide rail 61, and one end of the ball screw 621 is coaxially fixed to the output shaft of the drive component 62 via a coupling. A slide table on the slide rail 61 has a threaded hole that mates with the ball screw 621. The slide table is slidably fixed to the ball screw 621 through the threaded hole. The connecting plate 23 is fixed to the slide table with bolts. The length of the hollow tube 21 corresponds to the length of the air intake area, and the axis of the hollow tube 21 is perpendicular to the slide rail 61, thereby slidably fixing the connecting pipe 4 to the slide rail 61. In other embodiments, the slide rail 61 is arranged along the length of the air intake area, and the length of the slide rail 61 corresponds to the length of the air intake area. The length of the hollow tube 21 corresponds to the width of the air intake area. The slide rail 61 can also be fixed to the inner side wall of the housing 9 with bolts. The drive component 62 can also be a cylinder, and the output shaft of the cylinder is fixed to the slide table by welding.

[0039] When the jet pipe 2 is damaged, disconnect the jet pipe 2 from the connecting pipe 4, remove the connecting plate 23, then fix the new jet pipe 2 to the slide table with bolts connecting plate 23, and then connect the jet pipe 2 to the connecting pipe 4 to complete the replacement of the damaged jet pipe 2, saving installation costs.

[0040] By periodically controlling the opening and closing of the solenoid valve 5, compressed gas is output from the exhaust pipe 3 to the jet pipe 2. The compressed gas is ejected through multiple straight jet holes 7 and oblique jet holes 8 of the jet pipe 2, blowing away dust or foreign objects attached to the air inlet 1, achieving a periodic self-cleaning effect and saving manpower. The drive motor 622 rotates the lead screw, which drives the slide table to move along the guide rail. The connecting plate 23 fixed on the slide table moves with the slide table, thereby driving the jet pipe 2 to move on the slide rail 61. The movement trajectory of the jet pipe 2 can cover the entire air intake area, ensuring that all air inlets 1 can be cleaned.

[0041] The implementation principle of this application embodiment is as follows: Compressed air enters the jet pipe 2 from the exhaust pipe 3 through the connecting pipe 4, and is ejected from the straight jet hole 7 and the oblique jet hole 8 on the jet pipe 2; the drive motor 622 rotates the lead screw, and the rotation of the lead screw drives the slide table to move along the guide rail. The connecting plate 23 fixed on the slide table moves with the slide table, thereby driving the jet pipe 2 to move on the slide rail 61. The movement trajectory of the jet pipe 2 can cover the entire air intake area, ensuring that all air intake ports 1 can be cleaned; when the jet pipe 2 is not in use, the jet pipe 2 moves to the end of the slide rail 61, and the jet pipe 2 will not block part of the air intake area, thus affecting the air intake efficiency; by installing the solenoid valve 5, the system periodically controls the opening and closing of the solenoid valve 5, and periodically turns on the drive motor 622 to control the jet pipe 2 to move on the slide rail 61, so as to output compressed gas from the exhaust pipe 3 into the jet pipe 2, thereby achieving the effect of periodically cleaning the air intake ports 1 automatically.

[0042] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-cleaning system for an air compressor inlet, comprising an air compressor housing (9), an air inlet (1) disposed on the side wall of the housing (9), and an exhaust pipe (3) for outputting compressed gas from the air compressor, characterized in that, It also includes a jet pipe (2) for blowing air into the air inlet (1) area, a slide rail (61) for sliding the jet pipe (2), and a drive component (62) for driving the jet pipe (2) to slide; the jet pipe (2) has a straight jet hole (7) on the side near the air inlet (1), and multiple straight jet holes (7) are evenly arranged along the length of the jet pipe (2); the slide rail (61) is installed on the inner side wall of the housing (9), and the jet pipe (2) is intersected with the slide rail (61); the sliding direction of the slide rail (61) and the length direction of the jet pipe (2) are arranged to correspond to the air intake area composed of multiple air inlets (1); a connecting pipe (4) is provided between the jet pipe (2) and the exhaust pipe (3), the connecting pipe (4) connects the jet pipe (2) and the exhaust pipe (3), and a solenoid valve (5) is provided on the connecting pipe (4).

2. The self-cleaning system for an air compressor inlet according to claim 1, characterized in that, The axis of the direct jet hole (7) is perpendicular to the side wall of the housing (9) where the air inlet (1) is located.

3. The self-cleaning system for an air compressor inlet according to claim 2, characterized in that, The jet pipe (2) is also provided with an oblique jet hole (8) on the side near the air inlet (1). The central axis of the oblique jet hole (8) intersects with the central axis of the jet pipe (2). The straight jet hole (7) and the oblique jet hole (8) are distributed along the circumference of the jet pipe (2). Oblique jet holes (8) are provided on both sides of the straight jet hole (7). Multiple straight jet holes (7) and oblique jet holes (8) on both sides are evenly provided along the length of the jet pipe (2).

4. The self-cleaning system for an air compressor inlet according to claim 3, characterized in that, The straight jet hole (7) and the oblique jet hole (8) are arranged alternately along the length of the jet pipe (2).

5. The self-cleaning system for an air compressor inlet according to claim 1, characterized in that, The slide rail (61) is a linear guide rail, and the slide rail (61) is set along the length or width direction of the air intake area. The length of the slide rail (61) is set to correspond to the length or width of the air intake area. The jet pipe (2) is set perpendicular to the slide rail (61), and the length of the jet pipe (2) is set to correspond to the width or length of the air intake area.

6. The self-cleaning system for an air compressor inlet according to claim 5, characterized in that, The slide rail (61) is located on one side edge of the air intake area, and one end of the jet pipe (2) is slidably mounted on the slide rail (61).

7. The self-cleaning system for an air compressor inlet according to claim 6, characterized in that, A slide table is slidably mounted on the slide rail (61), and the end of the jet pipe (2) is fixed on the slide table; a connecting plate (23) parallel to the slide table is fixed to the end of the jet pipe (2), the connecting plate (23) is detachably fixed to the slide table, and the end of the jet pipe (2) is detachably fixed to the connecting pipe (4).

8. The self-cleaning system for an air compressor inlet according to claim 7, characterized in that, The jet pipe (2) includes a hollow tube (21) and an end sleeve (22). The hollow tube (21) is a hollow tube body closed at both ends. The end of the hollow tube (21) near the connecting pipe (4) is provided with an air passage connector corresponding to the connecting pipe (4). The end sleeve (22) is a cylinder that extends through both ends. The end of the hollow tube (21) near the connecting pipe (4) is inserted and fixed in the end sleeve (22) and fixed to the end sleeve (22). The end sleeve (22) is fixed on the connecting plate (23).

9. The self-cleaning system for an air compressor inlet according to claim 7, characterized in that, The driving component (62) includes a ball screw (621) and a drive motor (622). The ball screw (621) is arranged along the length of the slide rail (61). The two ends of the ball screw (621) are rotatably mounted on the two ends of the slide rail (61). The drive motor (622) is mounted on the inner side wall of the housing (9) and located at the end of the slide rail (61). The output shaft of the drive motor (622) is coaxially fixed with the ball screw (621). A threaded hole that mates with the ball screw (621) is provided through the slide. The screw mates with the threaded hole on the slide and passes through the slide.

10. The self-cleaning system for an air compressor inlet according to claim 1, characterized in that, A filter screen is fixed on the inner side wall of the housing (9) corresponding to the air intake area.