Particle separator for fan

Abstract

The particle separator comprises an oil baffle ring fixed to an air inlet of a fan shell through a flange ring, the cross section of the oil baffle ring is in a C shape, a center shaft is arranged in the center of the inner side of the oil baffle ring, and one end of the center shaft is in transmission connection with an impeller shaft in the fan through a clutch mechanism. The central shaft is sleeved and fixedly connected with a shaft sleeve, the shaft sleeve is provided with an oil-smoke separation assembly, the air inlet end of the oil baffle ring is provided with a rough filtration mechanism, and the other end of the central shaft is in transmission connection with the rough filtration mechanism; the oil fume separation assembly comprises a mesh support and two oil fume separation meshes, the two oil fume separation meshes are installed on the two sides of the mesh support, a plurality of oil scraping plates are arranged on the outer side edge of the mesh support, an oil leakage opening is formed in the bottom of the oil baffle ring, and the position, corresponding to the oil leakage opening, of the bottom of the oil baffle ring is fixedly connected with an oil receiving box through a bolt assembly. According to the particle separator for the fan, energy loss is reduced, the operation efficiency and durability of the impeller are improved, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The invention relates to the field of particle separators, in particular to a particle separator for a fan. Background Art

[0002] After working for a period of time, a lot of oil smoke and dust will accumulate on the blades and volute of ordinary fans, and even completely cover the blades. When the motor drives the impeller to operate, the load is greater, and the motor is at risk of overload and burnout. Installing an oil fume separator at the air inlet of the oil fume fan can effectively reduce the oil smoke and dust in the air passing through the fan, reduce the adhesion of large particles such as oil smoke on the fan blades and volute, reduce energy loss, and improve the operating efficiency and durability of the impeller and the service life of the motor. In view of this, we propose a particle separator for the fan. Summary of the invention

[0003] The purpose of the present invention is to provide a particle separator for a fan to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a particle separator for a fan, comprising an oil deflector fixed at the air inlet of the fan casing by a flange ring, the cross section of the oil deflector is C-shaped, a central axis is arranged at the center position of the inner side of the oil deflector, and one end of the central axis is connected to the impeller shaft of the fan through a clutch mechanism, a shaft sleeve is sleeved and fixedly connected on the central axis, and an oil fume separation component is arranged on the shaft sleeve, and a coarse filter mechanism is arranged at the air inlet end of the oil deflector, and the other end of the central axis is connected to the coarse filter mechanism; The oil fume separation assembly includes a mesh bracket and two oil fume separation meshes, the two oil fume separation meshes are installed on both sides of the mesh bracket, a plurality of oil scrapers are arranged on the outer side of the mesh bracket, an oil leakage port is opened at the bottom of the oil deflector ring, and the bottom of the oil deflector ring is fixedly connected to the oil receiving box at the position corresponding to the oil leakage port through a bolt assembly.

[0004] Preferably, the mesh bracket includes an outer rim and an inner rim, and the inner rim is coaxially fixed on the sleeve, and the outer rim and the inner rim are connected by a plurality of radial arc support strips, and the plurality of radial arc support strips are arranged at equal intervals along the circumferential direction, and the plurality of scraper plates are fixed on the outer side edge of the outer rim at equal intervals along the circumferential direction.

[0005] Preferably, the oil fume separation mesh includes an outer ring and a center ring, the outer ring and the center ring are connected by a plurality of circumferential ring strips and radial arc strips, the circumferential ring strips are coaxially arranged with the outer ring and the center ring, and a plurality of radial arc strips are arranged at equal intervals along the circumferential direction, the outer ring on the oil fume separation mesh is riveted to the outer rim on the mesh bracket by rivets, and the center ring on the oil fume separation mesh is riveted to the inner rim on the mesh bracket by rivets.

[0006] Preferably, the radial arc strips uniformly distributed between adjacent circumferential ring strips on the oil fume separation mesh are discontinuous with the radial arc strips uniformly distributed between another adjacent circumferential ring strips.

[0007] Preferably, the coarse filtering mechanism comprises a ring frame fixed on the air inlet of the oil deflector ring, a filter mesh is fixed on the inner side of the ring frame, and a central axis passes through and is rotatably connected to the center of the filter mesh.

[0008] Preferably, the central axis is located on the circumferential wall at one end on the air inlet side of the filter mesh, and a brush roller is rotatably connected to the filter mesh, and the brush roller is arranged perpendicular to the central axis. The end of the brush roller away from the central axis is coaxially fixedly connected to a gear, and a gear ring is coaxially fixedly connected to the ring frame, and the gear and the gear ring are meshingly connected.

[0009] Preferably, the clutch mechanism includes a column tube coaxially fixed at the end of the impeller shaft, and a plug is detachably fixedly connected to the end of the column tube away from the impeller shaft. A slide plate 2 is slidably connected inside the column tube, and the slide plate 2 is connected to the plug through a spring. The column tube, impeller shaft and center axis are coaxially arranged.

[0010] Preferably, an oblique branch pipe is fixed and connected to the side wall of one end of the column close to the impeller shaft, and the end of the oblique branch pipe away from the column is integrally fixed and connected to the slide cylinder, and the slide cylinder is arranged parallel to the column cylinder, and a slide plate is slidably connected inside the slide cylinder.

[0011] Preferably, a support rod corresponding to the slide cylinder is fixed on the peripheral wall of one end of the column tube close to the plug, a slide rod is slidably connected to the support rod, and the slide rod is arranged parallel to the column tube, one end of the slide rod is fixedly connected to a slide plate, and the other end is fixedly connected to a conical friction cylinder, the end with the central axis pointing to the impeller shaft is coaxially fixedly connected to the friction cone, and the conical friction cylinder and the friction cone are coaxially arranged.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the oil fume separation mesh adopts radial arc strips to connect the outer ring and the center ring, which reduces wind resistance, is conducive to guiding the oil to flow to the oil deflector, and reduces the accumulation of oil on the surface of the oil fume separation mesh; an oil leakage port is provided at the bottom of the oil deflector, and an oil collecting box is fixedly installed at the oil leakage port by a bolt assembly, which is easy to disassemble and is conducive to the collection and regular cleaning of oil; the mesh bracket adopts an arc support strip to better disperse the stress generated during work and reduce the risk of structural damage caused by stress concentration; no auxiliary motor is required, and the central axis is connected to the impeller shaft through a clutch mechanism, which reduces energy consumption and equipment cost, and the clutch mechanism protects the impeller shaft during the start and stop working sections of the fan, effectively reducing the oil fume and dust in the air passing through the fan, reducing the adhesion of large particles such as oil fume on the fan blades and volute, reducing energy loss, and improving the operating efficiency and durability of the impeller and the service life of the motor.

[0013] In the present invention, by providing a coarse filtering mechanism, impurities in the air containing oil smoke, such as hair, debris and the like, can be filtered out, thereby preventing the impurities from damaging the blades, and achieving automatic cleaning, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the general assembly cross-sectional structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the oil deflector ring in the present invention; Figure 3 This is a schematic diagram of the structure of the oil fume separation component in the present invention; Figure 4 This is a schematic diagram of the oil fume separation mesh structure of the present invention; Figure 5 It is a schematic diagram of the mesh support structure in the present invention; Figure 6 for Figure 1 A in the figure is an enlarged structural diagram.

[0015] In the figure: 1. fan casing; 2. oil deflector; 3. flange ring; 4. center shaft; 5. oil fume separation assembly; 6. oil collecting box; 7. brush roller; 8. filter mesh; 9. ring frame; 10. gear ring; 11. gear; 12. oil leakage port; 13. oil scraper; 14. bushing; 15. mesh support; 16. oil fume separation mesh; 17. outer ring; 18. center ring; 19. circumferential ring strip; 20. radial arc strip; 21. inner rim; 22. outer rim; 23. radial arc support strip; 24. friction cone; 25. column; 26. oblique branch pipe; 27. slide cylinder; 28. slide plate one; 29. ​​support rod; 30. slide rod; 31. conical friction cylinder; 32. plug; 33. spring; 34. slide plate two. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figures 1 to 6The present invention provides a technical solution: a particle separator for a fan, comprising an oil deflector 2 fixed at the air inlet of a fan casing 1 through a flange ring 3, the cross section of the oil deflector 2 is C-shaped, a central shaft 4 is arranged at the center position of the inner side of the oil deflector 2, and one end of the central shaft 4 is connected to the impeller shaft inside the fan through a clutch mechanism, a shaft sleeve 14 is sleeved and fixedly connected to the central shaft 4, and an oil fume separation component 5 is arranged on the shaft sleeve 14, and a coarse filter mechanism is arranged on the air inlet end of the oil deflector 2, and the other end of the central shaft 4 is connected to the coarse filter mechanism through a clutch mechanism; The oil fume separation component 5 includes a mesh bracket 15 and two oil fume separation meshes 16, the two oil fume separation meshes 16 are installed on both sides of the mesh bracket 15, a plurality of oil scrapers 13 are arranged on the outer side of the mesh bracket 15, an oil leakage port 12 is opened at the bottom of the oil deflector 2, and the bottom of the oil deflector 2 is fixedly connected to the oil receiving box 6 at a position corresponding to the oil leakage port 12 through a bolt assembly.

[0018] In this embodiment, the mesh bracket 15 includes an outer rim 22 and an inner rim 21, and the inner rim 21 is coaxially fixed on the sleeve 14, and the outer rim 22 and the inner rim 21 are connected by a plurality of radial arc support strips 23, and the plurality of radial arc support strips 23 are arranged at equal intervals along the circumferential direction, and the plurality of scraper plates 13 are fixed at equal intervals along the circumferential direction on the outer side edge of the outer rim 22 (the number of radial arc support strips 23 is not unique and can change with the size of the fan inlet).

[0019] In this embodiment, the oil fume separation mesh 16 includes an outer ring 17 and a center ring 18, and the outer ring 17 and the center ring 18 are connected by a plurality of circumferential ring strips 19 and radial arc strips 20. The circumferential ring strips 19 are coaxially arranged with the outer ring 17 and the center ring 18, and a plurality of radial arc strips 20 are arranged at equal intervals along the circumferential direction. The outer ring 17 on the oil fume separation mesh 16 is riveted to the outer rim 22 on the mesh bracket 15 by rivets, and the center ring 18 on the oil fume separation mesh 16 is riveted to the inner rim 21 on the mesh bracket 15 by rivets (the number of radial arc strips 20 and circumferential ring strips 19 is not unique and can be changed with the size of the fan inlet).

[0020] In this embodiment, the radial arc strips 20 evenly distributed between adjacent circumferential ring strips 19 on the oil fume separation mesh 16 are discontinuous with the radial arc strips 20 evenly distributed between another adjacent circumferential ring strips 19 to ensure that the width of the arc strips 20 is uniform.

[0021] In this embodiment, the coarse filtering mechanism includes a ring frame 9 fixed on the air inlet of the oil deflector 2, a filter mesh 8 is fixed on the inner side of the ring frame 9, a central axis 4 passes through and is rotatably connected to the center of the filter mesh 8, the central axis 4 is located on the peripheral wall at one end on the air inlet side of the filter mesh 8 and is rotatably connected to a brush roller 7, and the brush roller 7 is arranged perpendicular to the central axis 4, and the end of the brush roller 7 away from the central axis 4 is coaxially fixedly connected to a gear 11, and a ring gear 10 is coaxially fixedly connected to the ring frame 9, and the gear 11 is meshingly connected to the ring gear 10.

[0022] In this embodiment, the clutch mechanism includes a column 25 coaxially fixed to the end of the impeller shaft, and the end of the column 25 away from the impeller shaft is detachably fixedly connected to a plug 32, and a slide plate 34 is slidably connected inside the column 25, and the slide plate 34 is connected to the plug 32 through a spring 33. The column 25, the impeller shaft and the central axis 4 are coaxially arranged, and an oblique branch pipe 26 is fixed and connected to the side wall of the end of the column 25 close to the impeller shaft, and the end of the oblique branch pipe 26 away from the column 25 is integrally fixed and connected to a slide cylinder 27, and the slide cylinder 27 is arranged parallel to the column 25. A slide plate 28 is slidably connected inside the slide cylinder 27, and the cavity between the slide plate 28 and the slide plate 2 34 inside the column cylinder 25 is filled with liquid. A support rod 29 corresponding to the slide cylinder 27 is fixed on the peripheral wall of one end of the column cylinder 25 close to the plug 32, and a slide rod 30 is slidably connected to the support rod 29, and the slide rod 30 is arranged parallel to the column cylinder 25. One end of the slide rod 30 is fixedly connected to the slide plate 28, and the other end is fixedly connected to the conical friction cylinder 31. The end of the central axis 4 pointing to the impeller shaft is coaxially fixedly connected to the friction cone 24, and the conical friction cylinder 31 is coaxially arranged with the friction cone 24.

[0023] Working principle and advantages of the present invention: When the particle separator for the fan is in use, the working process is as follows: like Figure 1 and Figure 6 As shown, when the fan is started to exhaust oil smoke, the rotation of the impeller shaft synchronously drives the column 25 to rotate, so that while the column 25 rotates, the internal liquid obtains centrifugal force and flows into the slide cylinder 27 through the inclined branch pipe 26, so that the slide plate 28 obtains thrust, so that the slide plate 28 drives the conical friction cylinder 31 to approach the friction cone 24 through the slide rod 30 and contact it, thereby utilizing the friction force to drive the friction cone 24 and the center shaft 4 to rotate, thereby avoiding the load imposed on the impeller shaft by the center shaft 4 due to inertia when the fan is started, thereby protecting the impeller shaft and increasing the service life of the impeller shaft.

[0024] As described above, the impeller shaft rotates and draws the air containing oil smoke into the fan housing 1 through the oil deflector 2. Figure 2As shown, the filter mesh 8 filters out impurities in the air containing oil smoke, such as hair, debris, etc., to prevent the impurities from damaging the blades. The central shaft 4 rotates while driving the brush roller 7 to clean the air inlet side of the filter mesh 8 to brush off the adhered impurities. The coordinated action of the ring gear 10 and the gear 11 enables the brush roller 7 to rotate around its own axis, thereby performing a compound motion, thereby improving the cleaning effect of the filter mesh 8, achieving automatic cleaning, and saving time and effort.

[0025] As described above, the rotation of the central shaft 4 drives the oil fume separation assembly 5 to rotate, so that the radial arc strips 20 of the oil fume separation mesh 16 knock the large particles such as oil fume in the air that is about to enter the fan onto the inner wall of the oil deflector 2. Under the action of gravity, the oil stains slide to the bottom of the oil deflector 2, and the oil stains flow into the oil collecting box 6 through the oil leakage port 12. The oil collecting box 6 is detachable for easy cleaning, and the scraper plate 13 on the mesh bracket 15 scrapes off the oil stains on the inner wall of the oil deflector 2, thereby avoiding the accumulation of oil stains and improving the effect of removing oil stains.

[0026] When the fume exhaust work is finished, the impeller shaft stops rotating, thereby synchronously driving the column barrel 25 to stop rotating, so that the liquid inside the column barrel 25 loses centrifugal force, and under the action of the spring 33, drives the slide plate 2 34 to move right in the column barrel 25, so that the liquid in the slide cylinder 27 is sucked into the column barrel 25 through the inclined branch pipe 26, so that the slide plate 1 28 drives the conical friction cylinder 31 away from the friction cone 24 and resets through the slide rod 30, thereby disconnecting the power connection between the central shaft 4 and the impeller shaft, thereby avoiding the load applied to the impeller shaft by the central shaft 4 due to inertia when the fan stops, thereby protecting the impeller shaft and increasing the service life of the impeller shaft.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0028] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A particle separator for a fan, comprising an oil deflector (2) fixed to an air inlet of a fan housing (1) via a flange ring (3), characterized in that: The cross section of the oil deflector (2) is C-shaped, a central shaft (4) is arranged at the center position of the inner side of the oil deflector (2), and one end of the central shaft (4) is drivingly connected to the impeller shaft inside the fan through a clutch mechanism, a shaft sleeve (14) is sleeved on and fixedly connected to the central shaft (4), and an oil fume separation component (5) is arranged on the shaft sleeve (14), and a coarse filter mechanism is arranged on the air inlet end of the oil deflector (2), and the other end of the central shaft (4) is drivingly connected to the coarse filter mechanism; The oil fume separation assembly (5) comprises a mesh support (15) and two oil fume separation meshes (16), the two oil fume separation meshes (16) being mounted on both sides of the mesh support (15), a plurality of oil scrapers (13) being arranged on the outer side of the mesh support (15), an oil leakage port (12) being arranged at the bottom of the oil deflector (2), and the bottom of the oil deflector (2) corresponding to the position of the oil leakage port (12) being fixedly connected to the oil receiving box (6) by a bolt assembly.

2. A particle separator for a fan according to claim 1, characterized in that: The mesh support (15) comprises an outer rim (22) and an inner rim (21), wherein the inner rim (21) is coaxially fixed on the shaft sleeve (14), and the outer rim (22) and the inner rim (21) are connected via a plurality of radial arc support strips (23), wherein the plurality of radial arc support strips (23) are arranged at equal intervals along a circumferential direction, and the plurality of oil scraping plates (13) are fixed at equal intervals along a circumferential direction on the outer side of the outer rim (22).

3. A particle separator for a fan according to claim 2, characterized in that: The oil fume separation mesh (16) comprises an outer ring (17) and a center ring (18), wherein the outer ring (17) and the center ring (18) are connected via a plurality of circumferential ring strips (19) and radial arc strips (20), wherein the circumferential ring strips (19) are coaxially arranged with the outer ring (17) and the center ring (18), and the plurality of radial arc strips (20) are arranged at equal intervals along the circumferential direction, wherein the outer ring (17) on the oil fume separation mesh (16) is riveted to an outer rim (22) on a mesh support (15) via rivets, and the center ring (18) on the oil fume separation mesh (16) is riveted to an inner rim (21) on the mesh support (15) via rivets.

4. A particle separator for a fan according to claim 3, characterized in that: The radial arc strips (20) uniformly distributed between adjacent circumferential ring strips (19) on the oil fume separation mesh (16) are discontinuous with the radial arc strips (20) uniformly distributed between another adjacent circumferential ring strips (19).

5. A particle separator for a fan according to claim 1, characterized in that: The coarse filtering mechanism comprises a ring frame (9) fixed on the air inlet of the oil deflector (2), a filter mesh (8) being fixed on the inner side of the ring frame (9), and the central axis (4) passing through and being rotatably connected to the center of the filter mesh (8).

6. A particle separator for a fan according to claim 5, characterized in that: The central shaft (4) is located on a peripheral wall at one end of the air inlet side of the filter mesh (8), and is rotatably connected to a brush roller (7), and the brush roller (7) is arranged perpendicular to the central shaft (4). The end of the brush roller (7) away from the central shaft (4) is coaxially fixedly connected to a gear (11), and a ring gear (10) is coaxially fixedly connected to the ring frame (9), and the gear (11) is meshingly connected to the ring gear (10).

7. A particle separator for a fan according to claim 1, characterized in that: The clutch mechanism comprises a column (25) coaxially fixed to the end of the impeller shaft, the end of the column (25) away from the impeller shaft is detachably fixedly connected to a plug (32), a second slide plate (34) is slidably connected inside the column (25), and the second slide plate (34) is connected to the plug (32) via a spring (33), and the column (25), the impeller shaft and the central axis (4) are coaxially arranged.

8. A particle separator for a fan according to claim 7, characterized in that: An oblique branch pipe (26) is fixed and connected to the side wall of one end of the column tube (25) close to the impeller shaft, and the end of the oblique branch pipe (26) away from the column tube (25) is integrally fixed and connected to a slide tube (27), and the slide tube (27) is arranged parallel to the column tube (25), and a slide plate (28) is slidably connected inside the slide tube (27).

9. A particle separator for a fan according to claim 8, characterized in that: A support rod (29) corresponding to the slide cylinder (27) is fixed on the peripheral wall of one end of the column cylinder (25) close to the plug (32); a slide rod (30) is slidably connected to the support rod (29), and the slide rod (30) is arranged parallel to the column cylinder (25); one end of the slide rod (30) is fixedly connected to a slide plate (28), and the other end is fixedly connected to a conical friction cylinder (31); one end of the central axis (4) pointing to the impeller shaft is coaxially fixedly connected to the friction cone (24), and the conical friction cylinder (31) is coaxially arranged with the friction cone (24).

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