Centrifugal oil mist purifier

Abstract

The utility model provides a centrifugal oil mist purifier, which is applied to the technical field of purifiers, and adopts the technical scheme that the centrifugal oil mist purifier comprises a box body, an air suction opening and an air exhaust opening are respectively formed in the box body, and a centrifugal fan for generating negative pressure to suck air into the box body from the air suction opening is fixedly arranged in the box body; the first filtering module is arranged in the box body and is used for filtering air sucked into the box body; the oil guide plate is spirally fixed on the inner wall of the box body, and the first filtering module is arranged in the oil guide plate in a circling manner; the bottom of the oil guide plate is connected with an oil discharge pipe fixed on the box body; the spiral oil guide plate has the technical effects that the spiral oil guide plate is ingeniously designed, so that the effect of guiding flow to disperse air flow can be achieved, oil can flow into the oil discharge pipe along the track of the spiral oil guide plate, and the oil can be better discharged and recycled; and multi-stage filtration is configured, and better filtration performance is ensured by adopting multiple layers of filter cotton and the main filter element.

Description

Technical Field

[0001] This utility model relates to the field of air purifier technology, and in particular to a centrifugal oil mist purifier. Background Technology

[0002] With economic development, global manufacturing is increasingly shifting to China. my country's machine tool industry is transitioning from a growth phase to a period of rapid development and maturity, becoming the world's largest machine tool manufacturing and processing nation. High-speed and ultra-high-speed CNC machine tools (especially high-speed milling machines and grinding machines) generate significant amounts of cutting heat during operation. The cutting fluid used for lubrication and cooling readily vaporizes and atomizes when it encounters high-temperature and high-speed rotating metal parts, resulting in large amounts of oil mist and other pollutants. These pollutants contain polychlorinated biphenyls (PCBs), which easily cause toxic fumes to disperse in the air. Besides polluting the environment, these fumes can also adhere to the skin and eyes of workers, harming their physical and mental health. Directly releasing the oil mist outdoors damages the environment and wastes the machine tool cutting fluid that could be purified and recycled.

[0003] To ensure the safety of workers, oil mist purifiers are usually installed in the processing workshop. However, the oil mist purifiers currently on the market cannot effectively recover the atomized cutting fluid when purifying the air in the production workshop, thus resulting in a waste of resources. Utility Model Content

[0004] The purpose of this invention is to provide a centrifugal oil mist purifier, which has the advantage of recovering oil while purifying the air.

[0005] To achieve the above and other related objectives, this utility model provides the following technical solution:

[0006] A centrifugal oil mist purifier includes:

[0007] The box is provided with an air intake and an air exhaust. A centrifugal fan is fixedly installed inside the box to generate negative pressure and draw air into the box from the air intake.

[0008] The first filter module is disposed inside the box and is used to filter the air drawn into the box.

[0009] An oil guide plate is spirally fixed to the inner wall of the housing, and the oil guide plate encircles the first filter module inside; the bottom of the oil guide plate is connected to an oil drain pipe fixed on the housing.

[0010] In one embodiment of this utility model, the air intake is located at the bottom of the box, and the air exhaust is located at the top of the box; a mounting bracket is fixedly installed inside the box.

[0011] In one embodiment of the present invention, the centrifugal fan includes a motor fixed on a mounting frame and an impeller fixedly connected to the output shaft of the motor, wherein the impeller is disposed near the air inlet.

[0012] In one embodiment of this utility model, a cylindrical support net is fixedly provided on the mounting frame; the support net surrounds the exhaust port.

[0013] In one embodiment of this utility model, the first filter module is a cylindrical filter cotton installed on a support net.

[0014] In one embodiment of the present invention, a second filter module is installed on the housing; the second filter module includes a filter frame fixedly installed on the top of the housing and a main filter element fixedly installed inside the filter frame, wherein the main filter element surrounds the exhaust port.

[0015] In one embodiment of the present invention, the side wall at the bottom of the box is an upwardly convex conical slope.

[0016] In one embodiment of this utility model, an oil drain hole is provided on the oil drain pipe near the bottom inner wall of the box.

[0017] As described above, the centrifugal oil mist purifier of this utility model has the following beneficial effects:

[0018] 1. The centrifugal fan generates negative pressure suction within the chamber, drawing in polluted air from around the machine tool. The centrifugal force generated by the fan's rotating vortex accelerates the coalescing of oil mist within the chamber, easily converting it into liquid oil. A portion of this liquid falls onto a conical inclined surface under its own weight. When sufficient oil accumulates on the inclined surface, it flows through the drain hole into the drain pipe. The remaining oil falls onto a guide plate and is guided into the drain pipe for recycling. Oil mist that has not yet been converted into liquid is filtered by the first filtration module and discharged through the exhaust port. This process achieves both air purification and oil recycling.

[0019] 2. The guide plate is spirally set on the inner wall of the box and encloses the first filter module. Under the action of the centrifugal fan, the airflow entering the box spirals upward. The oil mist in the spirally upward airflow gathers and forms oil droplets that need to drip downward. The spiral guide plate can better guide the oil droplets on the inner wall of the box.

[0020] 3. The second filter module works in conjunction with the first filter module to improve the overall purification effect of the oil mist purifier. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the second filter module installed according to an embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of the overall structure of the second filter module installed according to an embodiment of the present invention;

[0024] Figure 4 This is a cross-sectional view of the overall structure of the second filter module installed according to an embodiment of the present invention.

[0025] Figure 5 yes Figure 4 Enlarged diagram of part A in the middle.

[0026] Reference numerals: 1. Housing; 2. Air inlet; 3. Air outlet; 4. Centrifugal fan; 41. Motor; 42. Impeller; 7. First filter module; 8. Oil guide plate; 9. Oil drain pipe; 10. Mounting bracket; 11. Support mesh; 12. Second filter module; 121. Filter frame; 122. Main filter element; 15. Conical slope; 16. Oil drain hole; 17. Mesh plate. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0028] Please see Figures 1 to 5 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0029] Please see Figures 1 to 5This utility model provides a centrifugal oil mist purifier, including a housing 1, a centrifugal fan 4, an oil guide plate 8, a first filter module 7, and a second filter module 12. The housing 1 is provided with an air intake 2 and an air exhaust 3. In this embodiment, the air intake 2 is located at the bottom of the housing 1, and a mesh plate 17 is welded and fixed at the air intake 2 to prevent foreign objects from entering the purifier. The air exhaust 3 is located at the top of the housing 1. A mounting frame 10 is welded and fixed inside the housing 1. The centrifugal fan 4 is fixedly installed inside the housing 1 and is used to generate negative pressure to draw air into the housing 1 from the air intake 2. In this embodiment, the centrifugal fan 4 includes a motor 41 and an impeller 42. The motor 41 is bolted to the upper end of the mounting frame 10, and the output shaft of the motor 41 passes through the mounting frame 10 and is fixedly connected to the impeller 42. The impeller 42 is located below the mounting frame 10 and is close to the air intake 2 and coaxial with the air intake 2.

[0030] Please see Figures 1 to 5 A support net 11 is welded and fixed to the upper end of the mounting frame 10. In this embodiment, the support net 11 is a cylindrical structure, in which the motor 41 is encircled within the support net 11. The first filter module 7 is set inside the housing 1 and is used to filter the air drawn into the housing 1. In this embodiment, the first filter module 7 is a multi-layer filter cotton. The multi-layer filter cotton is made of a multi-layer composite material of polyester and glass fiber, which can intercept and capture particulate pollutants. The multi-layer filter cotton is a cylindrical structure, and the multi-layer filter cotton is sleeved on the support net 11. The two ends of the multi-layer filter cotton abut against the inner wall of the mounting frame 10 and the top of the housing 1, respectively. The support net 11 encircles the exhaust port 3, so that the oil mist entering the housing 1 can be filtered through the multi-layer filter cotton and discharged from the exhaust port 3.

[0031] Please see Figures 1 to 5 The oil guide plate 8 is spirally welded and fixed to the inner wall of the box 1. The bottom of the box 1 is welded and fixed with an oil drain pipe 9. One end of the oil guide plate 8 is connected to the oil drain pipe 9. The spiral oil guide plate 8 contains multiple layers of filter cotton rings. Under the action of the centrifugal fan 4, the airflow entering the box 0 spirals upward. The oil mist in the spirally upward airflow gathers and forms oil droplets that need to drip downward. The spiral guide plate can better guide the oil droplets on the inner wall of the box.

[0032] In this embodiment, the side wall of the bottom of the box 1 is a conical slope 15 that protrudes upwards, and an oil drain hole 16 is opened on the oil drain pipe 9 near the bottom inner wall of the box 1; the design of the conical slope 15 can make the oil accumulated at the bottom of the box 1 drain more smoothly from the oil drain hole 16.

[0033] Please see Figure 2 , Figure 3 and Figure 4The second filter module 12 is detachably and fixedly installed on the housing 1 located on the exhaust port 3. The detachable fixing method between the second filter module 12 and the housing 1 can be bolt fixing or buckle fixing. In this embodiment, the second filter module 12 includes a filter frame 121 installed on the top of the housing 1 and a main filter element 122 fixedly installed in the filter frame 121. The main filter element 122 surrounds the exhaust port 3. The air that has undergone the first filtration by the first filter module 7 is discharged from the exhaust port 3 and enters the second filter module 12. The air is then discharged after undergoing the second filtration by the main filter element 122. The second filter module 12 works in conjunction with the first filter module 7 to improve the overall purification effect of the oil mist purifier. The second filter module 12 is an optional accessory and is suitable for occasions with higher air cleanliness requirements.

[0034] Brief description of the operation process: The centrifugal fan 4 generates negative pressure suction inside the housing 1, thereby drawing the polluted air around the machine tool into the housing 1; the centrifugal force generated by the rotating vortex of the centrifugal fan 4 accelerates the coalescence, causing the oil mist in the housing 1 to easily combine and transform into liquid oil. Part of the oil falls onto the conical inclined surface 15 under its own weight. When a large amount of oil accumulates on the conical inclined surface 15, it enters the oil drain pipe 9 through the oil drain hole 16; the other part of the oil falls onto the guide plate and enters the oil drain pipe 9 through the guide plate, and is discharged through the oil drain pipe 9 for recycling; the oil mist that has not been transformed into liquid is filtered by the first filter module 7 and discharged through the exhaust port 3 and enters the second filter module 12, and is discharged after a second filtration by the second filter module 12.

[0035] In summary, this utility model features a compact structure and small footprint; it employs a high-efficiency fan, resulting in lower noise and vibration; the ingeniously designed spiral oil guide plate 8 serves both to guide and disperse airflow, and to direct the oil along its trajectory into the drain pipe 9; it incorporates multi-stage filtration, using multiple layers of filter cotton and a main filter element 122 to ensure excellent filtration performance; and the bottom of the housing 1 features a special conical design to facilitate better oil discharge and recycling. The recycled oil can be returned to the machine tool for reuse, thus meeting the needs of various complex working environments and providing personnel with a clean working environment. Therefore, this utility model effectively overcomes the various shortcomings of existing technologies and possesses high industrial application value.

[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A centrifugal oil mist purifier characterized by comprising: Include: Box (1), the box (1) is respectively provided with suction port (2) and exhaust port (3), the box (1) is fixedly provided with centrifugal fan (4) for generating negative pressure to suck air from suction port (2) into the box (1) inside; First filter module (7), the first filter module (7) is arranged in the box (1) and is used for filtering the air sucked into the box (1); The oil guide plate (8) is spirally fixed on the inner wall of the box (1), and the oil guide plate (8) is arranged in the first filter module (7); the bottom of the oil guide plate (8) is connected with the oil discharge pipe (9) fixed on the box (1).

2. A centrifugal oil mist coalescer according to claim 1 wherein, The suction port (2) is opened in the bottom of the box (1), and the exhaust port (3) is opened in the top of the box (1); the box (1) is fixedly provided with mounting bracket (10) inside.

3. A centrifugal oil mist coalescer according to claim 2, wherein The centrifugal fan (4) includes motor (41) fixed on the mounting bracket (10) and impeller (42) fixedly connected with the output shaft of the motor (41), and the impeller (42) is arranged on the side close to the suction port (2).

4. A centrifugal oil mist coalescer according to claim 2 wherein, The mounting bracket (10) is fixedly provided with the support net (11) of cylindrical structure; the support net (11) is arranged in the exhaust port (3).

5. A centrifugal oil mist coalescer according to claim 4 wherein, The first filter module (7) is the filter cotton of cylindrical structure installed on the support net (11).

6. A centrifugal oil mist coalescer according to claim 1 wherein, The box (1) is provided with second filter module (12); The second filter module (12) includes filter frame (121) fixedly installed on the top of the box (1) and main filter core (122) fixedly installed in the filter frame (121), and the main filter core (122) is arranged in the exhaust port (3).

7. A centrifugal oil mist coalescer according to claim 1 wherein, The sidewall of the bottom of the box (1) is the upwardly convex conical slope (15).

8. A centrifugal oil mist coalescer according to claim 7 wherein, The oil discharge pipe (9) close to the inner wall of the bottom of the box (1) is provided with oil discharge hole (16).

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