Air compressor dust removal filter

Abstract

The application relates to the technical field of air purification, in particular to dust removal and filtration equipment for an air compressor. The equipment comprises a shell communicated with an air outlet of an air compressor body through an air pipe; a base and a purification grid are fixedly installed at the bottom and the top of the shell respectively, an air extraction assembly is arranged at the top of the purification grid, a spraying assembly is fixedly arranged at the shaft center of the shell, a purification grid is arranged between the inner wall of the shell and the outer layer of the spraying assembly in a sleeving mode, and a scraping assembly is arranged between the purification grid and the base in a sleeving mode; after a water pump pumps external water into the central pipe, the water is pressurized through various water inlet interfaces, the water in the central pipe is sprayed into a purification cavity in the form of water mist, the water mist continuously passes through air holes of the purification grid, impurities in the air to be treated are combined with the water mist in the temporary storage cavity, impurities with large particles are condensed from the impurities in the air to be treated, and the impurities with large particles are attached to the outer wall of the purification grid.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, and more specifically, to a dust removal and filtration device for an air compressor. Background Technology

[0002] During operation, air compressors draw in air mixed with dust particles. If this dust directly enters the compressor, it can easily cause wear and tear on core components such as the rotor and valves, shortening the compressor's lifespan. Therefore, the industry commonly equips air compressors with dust removal and filtration devices to purify the intake air. Current air compressor dust filtration systems mostly employ dry filter methods, relying on the filter to intercept solid impurities in the air, thus reducing the risk of dust entering the compressor.

[0003] In existing dry filtration devices, dust continuously accumulates on the filter surface during long-term use, causing filter blockage, increasing airflow resistance, and affecting the air compressor's intake efficiency. Conventional filter cleaning methods mostly involve shutting down the machine for disassembly and cleaning, which is not only cumbersome but also requires interrupting air compressor operation, reducing the equipment's continuous working capacity. Some filter structures rely solely on airflow purging, which has limited effectiveness in cleaning fine dust particles, allowing fine particles to easily penetrate the filter and resulting in insufficient filtration and purification.

[0004] In view of this, we propose a dust removal and filtration device for air compressors to improve the above-mentioned shortcomings. Summary of the Invention

[0005] This invention provides a dust removal and filtration device for air compressors, which solves the problem that the existing air compressor filtration structure has limited cleaning effect on fine dust adhering objects.

[0006] To achieve the above objectives, the dust removal and filtration device for the air compressor includes a housing that is connected to the air outlet of the air compressor body via an air inlet pipe; The bottom and top of the housing are respectively fixedly installed with a base and a purification grid. The top of the purification grid is provided with an air extraction component. A spray component is fixedly installed at the axis of the housing. A purification grid is sleeved between the inner wall of the housing and the outer layer of the spray component. A scraping component is sleeved between the purification grid and the base. A limit frame is fixedly connected to the inner wall of the base. The bottom of the spray assembly is used to connect an external water pump. The air compressor body is used to input the air to be filtered into the housing. The spray assembly is used to spray water mist onto the purification grille. The water mist can isolate the air to be purified from the outside air. The water mist is also used to make the scraping assembly scrape off impurities on the outer wall of the purification grille. The air extraction assembly is used to extract the purified air inside the housing to the outside.

[0007] In the above technical solution, the air compressor body introduces the air to be purified into the housing through the air pipe, and at the same time, the bottom of the scraping component is connected to an external water pump. After the purified air enters the housing, it passes through the side wall of the scraping component and reaches the outer area of ​​the purification grille. Meanwhile, the water source from the outside is pumped into the spray component by the water pump, forming a water mist that is sprayed outward and reaches the inner area of ​​the purification grille. When the purified air reaches the outside of the purification grille, the impurities it contains are intercepted by the purification grille, while the water mist passes through the purification grille and combines with the impurities in the air to be purified, and adheres to the outer surface of the purification grille. As the scraping component rotates, it scrapes off the impurities attached to the outer surface of the purification grille, and these impurities fall from the inside of the housing to the outside. At this time, the power supply of the air extraction component is turned on, which creates a negative pressure above the purification grille, thereby drawing the purified air, which has passed through the scraping component for filtration and the spray component for washing, to the outside of the housing.

[0008] Based on this, the scraping assembly includes a rotating grille, a gear ring, and multiple scrapers. The rotating grille is fixedly connected to the top of the gear ring, the gear ring is rotatably connected to the top of the base, and the scrapers are fixedly connected to the interior of the rotating grille.

[0009] Furthermore, the multiple scrapers are arranged in a ring array about the axis of the rotating grid, and the end of the scraper away from the rotating grid slides against the outside of the purification grid.

[0010] Furthermore, a mounting plate is fixedly connected to the bottom of the limiting frame, a first motor is provided at the bottom of the mounting plate, and a gear for rotating the gear ring is provided above the mounting plate.

[0011] The first motor includes a body and an output shaft. The body of the first motor is fixedly connected to a mounting plate. The output shaft of the first motor is coaxially connected to a gear, and the gear meshes with a gear ring.

[0012] With this design, when the air compressor body introduces the air to be purified into the housing through the air pipe, the air containing impurities passes through the rotating grille and then the power of the first motor is turned on. Its output shaft drives the gear to rotate, and the gear then drives the rotating grille to rotate through the gear ring. Thus, the rotating grille drives the scraper inside to scrape off the impurities attached to the outer wall of the purification grille, so that the impurities can fall to the outside of the housing.

[0013] In another technical solution, the outer side of the purification grille and the inner wall of the rotating grille form a temporary storage cavity, and the ventilation aperture of the purification grille is smaller than that of the rotating grille.

[0014] Preferably, the spray assembly includes a central tube fixedly connected to the top of the limiting frame, and a water inlet is provided at the bottom of the central tube, which is connected to an external water pump through the water inlet.

[0015] Furthermore, the central tube has several atomizing narrow holes on its side wall, and the outer wall of the central tube and the inner wall of the purification grid form a purification chamber. The water inlet is used to pressurize and spray water from inside the central tube.

[0016] In this technical solution, after the water pump draws external water into the central pipe, the water is pressurized through various inlet ports and sprayed as a mist into the purification chamber. This mist then passes through the ventilation holes of the purification grille. Upon reaching the temporary storage chamber, the mist combines with impurities in the air to be treated. These impurities condense into larger particles, which adhere to the outer wall of the purification grille. Simultaneously, the mist inside the purification grille forms a barrier, preventing impurities from the outside air from passing through and reaching the inside. As the scraper rotates with the grille, these impurities are scraped off and fall from the temporary storage chamber to the outside of the housing, thus obtaining clean air.

[0017] In addition, the air extraction assembly includes a limiting plate disposed above the purification grid, a sealing cover is fixedly connected between the limiting plate and the purification grid, a heat dissipation pipe is provided on the side wall of the sealing cover communicating with the outside, and several air vents are provided at the non-center part of the limiting plate.

[0018] The improvement is that an exhaust fan is rotatably connected to the top of the limiting plate, and a second motor is provided at the bottom of the limiting plate inside the sealing cover, with the output shaft of the second motor coaxially connected to the exhaust fan.

[0019] As can be seen from the above scheme, the top of the temporary storage chamber is sealed by a purification grid, and the top of the purification chamber is connected to the outside through a clean air outlet opened on the purification grid. When the second motor drives the limiting plate to rotate, a negative pressure is formed above the clean air outlet, so the purified air inside the purification chamber is drawn to the outside of the shell.

[0020] Based on the above description, the beneficial effects of the present invention compared with the prior art are as follows: After the water pump pumps external water into the central pipe, the water is pressurized through each water inlet and sprayed into the purification chamber in the form of water mist. The water mist continues to pass through the ventilation holes of the purification grid. After the water mist reaches the temporary storage chamber, it combines with impurities in the air to be treated. The impurities in the air to be treated condense into larger particles, which adhere to the outer wall of the purification grid. Meanwhile, the water mist inside the purification grille forms a barrier, preventing impurities in the air outside the grille from passing through and reaching its inner side. As the scraper follows the rotating grille, these impurities are scraped off and fall from the temporary storage chamber to the outside of the housing, thus obtaining clean air. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a partial cross-sectional perspective view of the present invention; Figure 3 This is a perspective view of the inverted partial structure of the present invention; Figure 4 This is a cross-sectional perspective view of the scraping component in this invention; Figure 5 This is one of the cross-sectional perspective views of the spray assembly in this invention; Figure 6 This is a second sectional perspective view of the spray assembly in this invention; Figure 7 This is a top view schematic diagram of the spray assembly in this invention; Figure 8 This is a side view schematic diagram of the air extraction component in this invention.

[0022] The meanings of the labels in the diagram are as follows: 100. Housing; 101. Air compressor body; 102. Vent pipe; 110. Base; 111. Limiting frame; 120. Purification grille; 121. Clean air outlet; 130. Temporary storage chamber; 140. Purification chamber; 200, Scraper assembly; 210, Rotating grille; 220, Gear ring; 230, Gear; 231, Mounting plate; 232, First motor; 240, Scraper blade; 300. Spray assembly; 310. Central tube; 311. Water inlet; 312. Atomizing narrow orifice; 400. Air extraction assembly; 410. Limiting plate; 411. Ventilation groove; 420. Exhaust fan; 430. Second motor; 431. Sealing cover; 432. Heat dissipation pipe. Detailed Implementation

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In existing technologies, during long-term use, dust continuously accumulates on the surface of dry filter screens, causing clogging, increasing airflow resistance, and affecting the air compressor's intake efficiency. Conventional filter cleaning methods often involve shutting down the machine for disassembly and cleaning, which is not only cumbersome but also requires interrupting air compressor operation, reducing the equipment's continuous working capacity. Some filter structures rely solely on airflow purging, which has limited effectiveness in cleaning fine dust particles, allowing fine particles to easily penetrate the filter screen and resulting in insufficient filtration and purification.

[0027] Please see Figure 1 - Figure 3 In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a dust removal and filtration device for an air compressor, the dust removal and filtration device including a housing 100 that is connected to the air outlet of the air compressor body 101 through an air pipe 102. A base 110 and a purification grille 120 are fixedly installed at the bottom and top of the housing 100, respectively. An air extraction component 400 is provided on the top of the purification grille 120. A spray component 300 is fixedly installed at the axis of the housing 100. The purification grille 120 is sleeved between the inner wall of the housing 100 and the outer layer of the spray component 300. A scraping component 200 is sleeved between the purification grille 120 and the base 110. A limit frame 111 is fixedly connected to the inner wall of the base 110. The bottom of the spray assembly 300 is used to connect an external water pump. The air compressor body 101 is used to input the air to be filtered into the housing 100. The spray assembly 300 is used to spray water mist onto the purification grille 120. The water mist can isolate the air to be purified from the outside air. The water mist is also used to make the scraping assembly 200 scrape off the impurities on the outer wall of the purification grille 120. The air extraction assembly 400 is used to extract the purified air inside the housing 100 to the outside.

[0028] During implementation, the air compressor body 101 first introduces the air to be purified into the housing 100 through the air pipe 102. At the same time, the bottom of the scraper assembly 200 is connected to an external water pump. After the purified air enters the housing 100, it passes through the side wall of the scraping component 200 and reaches the outer area of ​​the purification grille 120. Meanwhile, the water source from the outside is pumped into the spray component 300 by the water pump, forming a water mist that is sprayed outward and reaches the inner area of ​​the purification grille 120. After the purified air reaches the outside of the purification grille 120, the impurities contained in it are intercepted by the purification grille 120, while the water mist passes through the purification grille 120 and combines with the impurities in the air to be purified, and adheres to the outer surface of the purification grille 120. During the rotation of the scraping component 200, it scrapes off the impurities attached to the outer surface of the purification grille 120, and these impurities fall from the inside of the housing 100 to the outside. At this time, the power supply of the air extraction component 400 is turned on, which creates a negative pressure above the purification grille 120, thereby drawing the purified air, which has been filtered by the scraping component 200 and washed by the spray component 300, to the outside of the housing 100.

[0029] Next, as Figure 4 As shown, the scraping assembly 200 removes impurities attached to the outside of the purification grille 120. The scraping assembly 200 includes a rotating grille 210, a gear ring 220, and multiple scrapers 240. The rotating grille 210 is fixedly connected to the top of the gear ring 220, and the gear ring 220 is rotatably connected to the top of the base 110. The scrapers 240 are fixedly connected to the inside of the rotating grille 210.

[0030] Furthermore, multiple scrapers 240 are arranged in a ring array about the axis of the rotating grid 210, and the end of the scraper 240 away from the rotating grid 210 slides and fits against the outside of the purification grid 120.

[0031] Furthermore, the bottom of the limiting frame 111 is fixedly connected to the mounting plate 231, the bottom of the mounting plate 231 is provided with a first motor 232, and the top of the mounting plate 231 is provided with a gear 230 for rotating the gear ring 220.

[0032] The first motor 232 includes a body and an output shaft. The body of the first motor 232 is fixedly connected to the mounting plate 231. The output shaft of the first motor 232 is coaxially connected to the gear 230, and the gear 230 meshes with the gear ring 220.

[0033] It should be noted that when the air compressor body 101 introduces the air to be purified into the housing 100 through the air pipe 102, the air containing impurities passes through the rotating grille 210 and then the power supply of the first motor 232 is turned on. Its output shaft drives the gear 230 to rotate, and the gear 230 then drives the rotating grille 210 to rotate through the gear ring 220. As a result, the rotating grille 210 drives the scraper 240 inside it to scrape off the impurities attached to the outer wall of the purification grille 120, so that the impurities can fall to the outside of the housing 100.

[0034] exist Figure 5 - Figure 7 The specific structure of the spray assembly 300 is disclosed. The outer side of the purification grille 120 and the inner wall of the rotating grille 210 form a temporary storage cavity 130. The ventilation hole diameter of the purification grille 120 is smaller than that of the rotating grille 210.

[0035] Preferably, the spray assembly 300 includes a central tube 310 fixedly connected to the top of the limiting frame 111, and a water inlet 311 is provided at the bottom of the central tube 310. The central tube 310 is connected to an external water pump through the water inlet 311.

[0036] Furthermore, several atomizing narrow holes 312 are provided on the side wall of the central tube 310, and the outer wall of the central tube 310 and the inner wall of the purification grid 120 form a purification chamber 140. The water inlet 311 is used to pressurize and spray water out of the central tube 310.

[0037] In other words, after the water pump draws external water into the central pipe 310, the water is pressurized through the various water inlets 311 and sprayed as a mist into the purification chamber 140. This mist then passes through the vents of the purification grille 120. Upon reaching the temporary storage chamber 130, the mist combines with impurities in the air to be treated, causing larger particles to condense and adhere to the outer wall of the purification grille 120. Simultaneously, the mist inside the purification grille 120 forms a barrier, preventing impurities from the air outside the grille from passing through and reaching its inner side. As the scraper 240 rotates with the rotating grille 210, these impurities are scraped off and fall from the temporary storage chamber 130 to the outside of the housing 100, thus obtaining clean air.

[0038] Based on the above explanation, the following will be further explained... Figure 8To explain the preferred effect of the air extraction assembly 400, the air extraction assembly 400 includes a limiting plate 410 disposed above the purification grille 120. A sealing cover 431 is fixedly connected between the limiting plate 410 and the purification grille 120. A heat dissipation pipe 432 is provided on the side wall of the sealing cover 431 in communication with the outside. Several ventilation slots 411 are provided at the non-center part of the limiting plate 410.

[0039] The improvement is that an exhaust fan 420 is rotatably connected to the top of the limiting plate 410, and a second motor 430 is provided at the bottom of the limiting plate 410 inside the sealing cover 431. The output shaft of the second motor 430 is coaxially connected to the exhaust fan 420.

[0040] With the above structural design, since the top of the temporary storage chamber 130 is sealed by the purification grille 120, and the top of the purification chamber 140 is connected to the outside through the clean air outlet 121 opened on the purification grille 120, when the second motor 430 drives the limiting plate 410 to rotate, a negative pressure is formed above the clean air outlet 121, so the purified air inside the purification chamber 140 is drawn to the outside of the housing 100.

[0041] The working principle of this dust removal and filtration equipment will be explained in detail below: First, the air compressor body 101 sends the air to be purified into the housing 100 through the air pipe 102, and at the same time, the external water pump is connected to the bottom of the scraping assembly 200 and the water inlet 311 of the spray assembly 300.

[0042] The air to be purified enters the housing 100, passes through the side wall of the rotating grille 210 of the scraping assembly 200 and enters the temporary storage chamber 130, reaching the outer area of ​​the purification grille 120; the external water source is pumped into the central pipe 310 of the spray assembly 300 by the water pump, and after the water is pressurized through the water inlet 311, it is sprayed into the purification chamber 140 in the form of water mist from the atomizing narrow hole 312, and the water mist passes through the purification grille 120 and enters the temporary storage chamber 130.

[0043] Inside the temporary storage chamber 130, water mist combines with impurities in the air to be purified, causing the impurities to condense into large particles and adhere to the outer wall of the purification grille 120; the water mist inside the purification grille 120 forms a barrier, preventing impurities from passing through the grille and entering the purification chamber 140.

[0044] Next, the first motor 232 drives the gear 230 to rotate, and the gear 230 drives the gear ring 220 and the rotating grille 210 to rotate synchronously. The scrapers 240 distributed in a ring array on the rotating grille 210 slide along the outer wall of the purification grille 120, scraping off the impurities attached to the outer wall. The impurities fall from the temporary storage chamber 130 to the outside of the housing 100.

[0045] Finally, the second motor 430 drives the exhaust fan 420 to operate, creating a negative pressure above the clean air outlet 121; the clean air that has been filtered and washed in the purification chamber 140 is drawn to the outside of the housing 100 by the exhaust fan 420 through the clean air outlet 121 and the ventilation groove 411 of the limiting plate 410.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal and filtration device for an air compressor, comprising a housing (100) connected to the air outlet of an air compressor body (101) via an air inlet pipe (102), characterized in that: The bottom and top of the housing (100) are respectively fixedly installed with a base (110) and a purification grille (120). The top of the purification grille (120) is provided with an air extraction component (400). A spray component (300) is fixedly installed at the axis of the housing (100). The purification grille (120) is sleeved between the inner wall of the housing (100) and the outer layer of the spray component (300). A scraping component (200) is sleeved between the purification grille (120) and the base (110). A limit frame (111) is fixedly connected to the inner wall of the base (110). The bottom of the spray assembly (300) is used to connect an external water pump. The air compressor body (101) is used to input the air to be filtered into the housing (100). The spray assembly (300) is used to spray water mist onto the purification grille (120). The water mist can isolate the air to be purified from the outside air. The water mist is also used to make the scraping assembly (200) scrape off the impurities on the outer wall of the purification grille (120). The air extraction assembly (400) is used to extract the purified air inside the housing (100) to the outside.

2. The dust removal and filtration equipment for air compressors according to claim 1, characterized in that: The scraping assembly (200) includes a rotating grille (210), a gear ring (220), and a plurality of scrapers (240). The rotating grille (210) is fixedly connected to the top of the gear ring (220), which is rotatably connected to the top of the base (110). The scrapers (240) are fixedly connected to the interior of the rotating grille (210).

3. The dust removal and filtration equipment for air compressors according to claim 2, characterized in that: The multiple scrapers (240) are arranged in a ring array about the axis of the rotating grid (210), and the end of the scraper (240) away from the rotating grid (210) slides against the outside of the purification grid (120).

4. The dust removal and filtration equipment for air compressors according to claim 2, characterized in that: The bottom of the limiting frame (111) is fixedly connected to the mounting plate (231), the bottom of the mounting plate (231) is provided with a first motor (232), and the top of the mounting plate (231) is provided with a gear (230) for rotating the gear ring (220).

5. The dust removal and filtration equipment for air compressors according to claim 4, characterized in that: The first motor (232) includes a body and an output shaft. The body of the first motor (232) is fixedly connected to the mounting plate (231). The output shaft of the first motor (232) is coaxially connected to the gear (230). The gear (230) meshes with the gear ring (220).

6. The dust removal and filtration equipment for air compressors according to claim 2, characterized in that: The outer side of the purification grille (120) and the inner wall of the rotating grille (210) form a temporary storage cavity (130), and the ventilation aperture of the purification grille (120) is smaller than that of the rotating grille (210).

7. The dust removal and filtration equipment for air compressors according to claim 1, characterized in that: The spray assembly (300) includes a central tube (310) fixedly connected to the top of the limiting frame (111). The bottom of the central tube (310) is provided with a water inlet (311), and the central tube (310) is connected to an external water pump through the water inlet (311).

8. The dust removal and filtration equipment for air compressors according to claim 7, characterized in that: The central tube (310) has several atomizing narrow holes (312) on its side wall. The outer wall of the central tube (310) and the inner wall of the purification grid (120) form a purification chamber (140). The water inlet (311) is used to pressurize and spray water from inside the central tube (310).

9. The dust removal and filtration equipment for air compressors according to claim 1, characterized in that: The air extraction assembly (400) includes a limiting plate (410) disposed above the purification grille (120). A sealing cover (431) is fixedly connected between the limiting plate (410) and the purification grille (120). A heat dissipation pipe (432) is provided on the side wall of the sealing cover (431) in communication with the outside. Several ventilation slots (411) are provided at the non-center of the limiting plate (410).

10. The dust removal and filtration equipment for air compressors according to claim 9, characterized in that: The top of the limiting plate (410) is rotatably connected to an exhaust fan (420), and the bottom of the limiting plate (410) is provided with a second motor (430) inside a sealing cover (431). The output shaft of the second motor (430) is coaxially connected to the exhaust fan (420).

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