Vertical oil mist purifier

Abstract

The utility model provides a vertical oil mist purifier, which is applied to the technical field of purifiers, and has the technical scheme that the vertical oil mist purifier comprises a box body, a horizontal vortex oil mist separation device, a second-stage filtering module and a third-stage filtering module, a centrifugal fan used for generating negative pressure to suck air into the box body from the air suction opening is arranged in the box body. An air inlet communicated with the air suction opening is formed in one side of the horizontal vortex oil mist separation device, and an air outlet located in the box body is formed in the other side of the horizontal vortex oil mist separation device; an oil outlet is formed in the horizontal vortex oil mist separation device, and an oil storage tank is arranged on the box body below the oil outlet; large-particle oil mist is separated from the air through centrifugal force generated by the horizontal vortex oil mist separation device, is discharged from the oil outlet and then enters the oil storage tank; the oil mist purification device has the technical effects that through multi-stage filtration, the requirements for multi-layer interception and filtration of oil mist are met, and the purification efficiency and the purification degree are high; and the cutting fluid can be recycled.

Description

Technical Field

[0001] This utility model relates to the field of air purifier technology, and in particular to a vertical 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 stage to a period of rapid development and maturity, becoming the world's largest machine tool manufacturing and processing country. In industrial production, when processing equipment cuts metal, the high-speed, high-intensity friction between the equipment and the metal generates oil mist; this oil mist not only pollutes the environment but also adheres to the skin and eyes of workers, harming their physical and mental health.

[0003] Currently, the treatment of oil mist usually involves using exhaust equipment to suck the generated oil mist out of the processing equipment and discharge it directly outdoors. This treatment method causes certain environmental pollution and also wastes the machine tool cutting fluid that could have been purified and recycled. Utility Model Content

[0004] The purpose of this invention is to provide a vertical oil mist purifier, which has the advantages of multi-stage filtration to meet the multi-layer interception and filtration requirements of oil mist, resulting in high purification efficiency and degree; and can also realize the recovery of cutting fluid.

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

[0006] A vertical oil mist purifier includes a housing, on which an air inlet and an air outlet are respectively provided, and a centrifugal fan is provided inside the housing to generate negative pressure to draw air into the housing from the air inlet.

[0007] A horizontal vortex oil mist separator is provided, wherein an air inlet connected to an air intake is provided on one side and an air outlet connected to the interior of the housing is provided on the other side; an oil outlet is provided on the horizontal vortex oil mist separator, and an oil storage tank is provided on the housing below the oil outlet; when air passes through the horizontal vortex oil mist separator, centrifugal force is generated to separate large oil mist particles from the air and discharge them from the oil outlet into the oil storage tank.

[0008] A secondary filtration module is fixedly installed inside a housing located above the horizontal vortex oil mist separator.

[0009] The three-stage filtration module is fixedly installed inside the housing above the two-stage filtration module; the centrifugal fan is located above the three-stage filtration module, and the exhaust port is located on the housing above the centrifugal fan.

[0010] In one embodiment of this utility model, the housing is provided with an oil drain pipe that communicates with the oil storage tank.

[0011] In one embodiment of the present invention, a first support frame is fixedly provided on the inner wall of the box located above the oil storage tank, and the horizontal vortex oil mist separator is fixed on the first support frame.

[0012] In one embodiment of this utility model, channel steel is fixedly provided on both inner walls of the box above the horizontal vortex oil mist separator, and the secondary filtration module is a filter plate, which is inserted into the channel steel.

[0013] In one embodiment of this utility model, a second support frame is fixedly installed on the inner wall of the box located above the filter plate, and the three-stage filtration module is the main filter element, which is snapped onto the second support frame.

[0014] In one embodiment of the present invention, a partition is fixedly provided on the inner wall of the box located above the main filter element, and an air suction ring is provided on the partition.

[0015] A third support frame is fixedly installed on the partition plate. The centrifugal fan includes a motor fixedly installed on the third support frame and an impeller fixedly connected to the motor output shaft. The impeller is located on the side near the suction ring.

[0016] In one embodiment of this utility model, a four-stage filtration module is provided on the housing located at the exhaust port.

[0017] In one embodiment of the present invention, the four-stage filtration module includes a housing fixedly disposed on the outer wall of the housing and a secondary filter element snapped into the housing;

[0018] The secondary filter element is located above the exhaust port, and the outer casing is provided with a secondary exhaust port.

[0019] As described above, the vertical oil mist purifier of this utility model has the following beneficial effects:

[0020] 1. A centrifugal fan generates negative pressure to draw air into the housing from the intake port for filtration before exhausting it from the exhaust port. Large oil mist particles are separated from the air by centrifugal force generated by a horizontal vortex oil mist separator and discharged from the oil outlet into an oil storage tank. The oil collected in the tank can be reused after further purification. Small oil mist particles accompany the air into the next stage for separation and filtration. The main function of the secondary filtration module is to separate and filter most of the small oil mist particles in the air. The air then passes through a tertiary filtration module, which filters out the vast majority of small oil mist particles. The filtered clean air is then exhausted from the exhaust port by the centrifugal fan. This multi-stage filtration of oil mist in the air meets the requirements for multi-layer interception and filtration of oil mist, resulting in high purification efficiency and degree.

[0021] 2. The four-stage filtration module can be installed on the exhaust vent as an optional accessory, suitable for use in situations requiring higher purification precision, to enhance air filtration and purification;

[0022] 3. Modular design, compact structure, and small footprint; the purifier can be placed directly next to the processing equipment that needs purification; no installation required and only minimal maintenance needed, making it both practical and economical. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the door panel when opened according to an embodiment of the present utility model;

[0025] Figure 3 This is a cross-sectional view of the entire embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the airflow trajectory within the entire embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the horizontal vortex oil mist separator according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the internal structure of the horizontal vortex oil mist separator according to an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the airflow trajectory within the horizontal vortex oil mist separator according to an embodiment of the present invention.

[0030] Reference numerals: 1. Housing; 101. Air inlet; 102. Air outlet; 2. Centrifugal fan; 201. Motor; 202. Impeller; 3. Horizontal vortex oil mist separator; 4. Shell; 5. First separation chamber; 6. Second separation chamber; 7. First oil outlet; 8. Second oil outlet; 9. Air inlet; 10. Air outlet; 11. First guide cone; 12. Central shaft; 13. Spiral blade; 14. Support plate; 15. 16. Second guide cone; 17. Third guide cone; 18. Annular mounting plate; 19. Oil reservoir; 20. Secondary filter module; 21. Tertiary filter module; 22. Oil drain pipe; 23. First support frame; 24. Channel steel; 25. Second support frame; 26. Partition plate; 27. Suction ring; 28. Third support frame; 29. ​​Quadruple filter module; 20. Outer shell; 21. Secondary filter element; 22. Secondary exhaust port; 23. Door panel. Detailed Implementation

[0031] 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.

[0032] Please see Figures 1 to 7 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.

[0033] Please see Figure 1 and Figure 2 This utility model provides a vertical oil mist purifier, including a housing 1, a centrifugal fan 2, a horizontal vortex oil mist separation device 3, a secondary filtration module 19, a tertiary filtration module 20, and a quaternary filtration module 28.

[0034] The housing 1 is equipped with an air intake 101 and an air exhaust 102. The air intake 101 is located on the lower side wall of the housing 1 and is used to draw in air containing oil mist. The air exhaust 102 is located on the top of the housing 1 and is used to discharge purified air. The centrifugal fan 2, the horizontal vortex oil mist separator 3, the secondary filter module 19, and the tertiary filter module 20 are all located inside the housing 1 between the air intake 101 and the air exhaust 102. The centrifugal fan 2 is used to generate negative pressure to draw air into the housing 1 from the air intake 101 and filter it through the horizontal vortex oil mist separator 3, the secondary filter module 19, and the tertiary filter module 20 before discharging it from the air exhaust 102.

[0035] A door panel 29 is hinged to the side wall of the housing 1 on the side away from the air intake 101. The secondary filter module 19 and the tertiary filter module 20 can be replaced or the equipment can be repaired by opening the door panel 29.

[0036] Please see Figure 3 and Figure 4 The horizontal vortex oil mist separator 3 is installed inside the housing 1. One side has an air inlet 9 connected to the suction port 101, and the other side has an air outlet 10 connected to the interior of the housing 1. The horizontal vortex oil mist separator 3 has an oil outlet, and an oil storage tank 18 is installed on the housing 1 below the oil outlet. An oil drain pipe 21 connected to the oil storage tank 18 is welded and fixed to the housing 1. Under the action of the centrifugal fan 2, external air enters the horizontal vortex oil mist separator through the air inlet 9. 3. When air passes through the horizontal vortex oil mist separator 3, large oil mist particles are separated from the air under the action of centrifugal force and discharged into the oil storage tank 18 through the oil outlet. The oil storage tank 18 is used to collect the separated oil. The oil storage tank 18 is connected to the oil discharge pipe 21 to facilitate the periodic discharge of the collected oil. The oil can be reused after subsequent purification, thus saving production costs. The air filtered and purified by the horizontal vortex oil mist separator 3 is discharged through the air outlet 10 and enters the interior of the housing 1.

[0037] The first support frame 22 is bolted to the inner wall of the box 1 located above the oil storage tank 18. The horizontal vortex oil mist separator 3 is bolted to the first support frame 22 to ensure its stable operation.

[0038] Please see Figure 3 and Figure 4The secondary filtration module 19 is located inside the housing 1 above the horizontal vortex oil mist separator 3. The main function of the secondary filtration module 19 is to separate and filter most of the small particles of oil mist in the air. Channel steel 23 is bolted to the inner walls on both sides of the housing 1 above the horizontal vortex oil mist separator 3. The secondary filtration module 19 is a filter plate. In this embodiment, the filter screen in the filter plate can be a 3PTFE sintered stainless steel pre-filter screen. The filter plate is inserted into the channel steel 23 for easy installation and replacement.

[0039] Please see Figure 3 and Figure 4 The three-stage filtration module 20 is located inside the housing 1 above the two-stage filtration module 19. The three-stage filtration module 20 can filter out most of the small particles of oil mist in the air, ensuring that clean air is discharged. A second support frame 24 is bolted to the inner wall of the housing 1 above the filter plate. The three-stage filtration module 20 is the main filter element. In this embodiment, the main filter element can be made of multi-layer composite material. The main filter element is snapped onto the second support frame 24 for easy installation and replacement.

[0040] Please see Figure 3 and Figure 4 A partition 25 is bolted to the inner wall of the housing 1 above the three-stage filtration module 20, and a suction ring 26 is provided in the middle of the partition 25; a third support frame 27 is bolted above the partition 25; the centrifugal fan 2 includes a motor 201 and an impeller 202, wherein the motor 201 is bolted to the third support frame 27, and the impeller 202 is fixedly connected to the output shaft of the motor 201, and the impeller 202 is located on the side near the suction ring 26; the exhaust port 102 is located on the side wall of the housing 1 above the motor 201;

[0041] When the centrifugal fan 2 is working, the impeller 202 rotates to generate negative pressure, which can draw in the air filtered by the three-stage filtration module 20 from the suction ring 26 and discharge it through the exhaust port 102.

[0042] Please see Figure 3 and Figure 4 A four-stage filtration module 28 is installed on the housing 1 located at the exhaust vent 102. The four-stage filtration module 28 is suitable for occasions with higher purification precision requirements, further enhancing the filtration and purification of air. The four-stage filtration module 28 includes a housing 281 and a secondary filter element 282. In this embodiment, the secondary filter element 282 can also be made of multi-layer composite material. The housing 281 is bolted to the outer wall of the housing 1, and the secondary filter element 282 is snapped into the housing 281. The secondary filter element 282 is located above the exhaust vent 102, and a secondary exhaust vent 283 is provided on the housing 281.

[0043] Brief description of operation: After the equipment is started, the centrifugal fan 2 generates negative pressure suction, and the polluted air around the machine tool is drawn into the air inlet 9 and filtered first-stage by the horizontal vortex oil mist separator 3. Under the action of centrifugal force, large oil mist particles will fall into the oil storage tank 18 through the oil outlet. The oil collected in the oil storage tank 18 can be reused after subsequent purification. The air with small oil mist particles enters the secondary filtration module 19 for separation and filtration. The main function of the secondary filtration module 19 is to separate most of the small oil mist particles in the air. The air filtered by the secondary filtration module 19 passes through the tertiary filtration module 20 again. The tertiary filtration module 20 can filter out most of the small oil mist particles in the air. The air filtered by the tertiary filtration module 20 is drawn in from the suction ring 26 and discharged through the exhaust port 102.

[0044] If this purifier is used in situations where a higher level of purification is required, a four-stage filtration module 28 is installed on the housing 1. The four-stage filtration module 28 is used to filter extremely fine oil mist in the air. After passing through the four-stage filtration of the purifier, the air containing oil mist becomes clean and dry.

[0045] Please see Figure 5 , Figure 6 and Figure 7 The specific structure of the horizontal vortex oil mist separator 3 is as follows:

[0046] The horizontal vortex oil mist separator 3 includes a housing 4, which is horizontally installed inside the housing 1 and is fixedly connected to the first support frame 22 by bolts. The housing 4 is provided with a first separation chamber 5 and a second separation chamber 6 communicating with the first separation chamber 5. The first separation chamber 5 and the second separation chamber 6 are coaxially arranged, and both the first separation chamber 5 and the second separation chamber 6 are provided with oil outlets at their bottoms. The bottom of the first separation chamber 5 is provided with a first oil outlet 7, and the bottom of the second separation chamber 6 is provided with a second oil outlet 8. The side wall of the first separation chamber 5 near the second separation chamber 6 is inclined, and the side wall of the second separation chamber 6 near the first separation chamber 5 is also inclined.

[0047] An air inlet 9 communicating with the first separation chamber 5 is provided on one side of the housing 4, and an air outlet 10 communicating with the second separation chamber 6 is provided on the other side of the housing 4; an annular mounting plate 17 is welded and fixed on the side wall of the housing 4 near the air inlet 9, and the annular mounting plate 17 is installed on the box 1 near the air intake 101 by bolts.

[0048] A first guide cone 11 is fixedly installed inside the first separation chamber 5. The first guide cone 11 is coaxially arranged with the first separation chamber 5. Several support plates 14 are distributed around the first guide cone 11. The support plates 14 are welded and fixed together with the inner wall of the first separation chamber 5. The bottom surface of the first guide cone 11 is close to the air inlet 9, and the diameter of the bottom surface of the first guide cone 11 is larger than the diameter of the air inlet 9.

[0049] The first guide cone 11 plays a good guiding role in the airflow entering the first separation chamber 5 through the air inlet 9; the airflow will swirl and collide here, and some large oil particles will fall directly to the bottom of the first separation chamber 5 and be discharged from the oil outlet.

[0050] Please see Figure 3 , Figure 4 and Figure 5 A central shaft 12 is provided inside the second separation chamber 6, and the central shaft 12 is coaxially arranged with the second separation chamber 6. Several spiral blades 13 are welded and fixed to the side wall of the central shaft 12, and the spiral blades 13 are welded and fixed to the inner wall of the second separation chamber 6. Guide cones are fixedly provided at both ends of the central shaft 12. The end of the central shaft 12 near the first separation chamber 5 is integrally formed as a second guide cone 15, and the bottom surface of the second guide cone 15 is fixedly connected to the central shaft 12. The first guide cone 11 and the second guide cone 15 are coaxially arranged. The second guide cone 15 is used to guide the airflow to the spiral blades 13. After the airflow is dispersed by the spiral blades 13, it becomes spiral in direction. The airflow is circulated under the inertial force of the spiral, and then centrifugally separated by the third guide cone 16 to accelerate the movement of the airflow. Some large oil particles are separated out under the action of centrifugal force.

[0051] The end of the central shaft 12 away from the first separation chamber 5 is integrally formed as the third guide cone 16, and the bottom surface of the third guide cone 16 is fixedly connected to the central shaft 12. The third guide cone 16 is coaxially arranged with the second guide cone 15. During the airflow process, the tiny oil particles mixed in the airflow continuously impact the third guide cone 16. The tiny particles will be separated from the airflow and fall off with the movement of the larger particles and be discharged from the oil outlet.

[0052] In summary, this utility model's vertical oil mist purifier, through multi-stage filtration and modular design, effectively solves the environmental pollution problem caused by traditional oil mist treatment methods, while simultaneously enabling the recycling of cutting fluid. It boasts advantages such as high purification efficiency, compact structure, and convenient installation and maintenance, making it suitable for various industrial processing environments. Therefore, this utility model effectively overcomes the various shortcomings of existing technologies and possesses high industrial application value.

[0053] 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 vertical oil mist purifier, characterized in that: Includes a housing (1), on which an air intake (101) and an air exhaust (102) are respectively provided, and a centrifugal fan (2) for generating negative pressure to draw air from the air intake (101) into the housing (1) is fixedly provided inside the housing (1); A horizontal vortex oil mist separator (3) is provided with an air inlet (9) on one side that communicates with the air inlet (101) and an air outlet (10) on the other side that communicates with the inside of the housing (1). An oil outlet is provided on the horizontal vortex oil mist separator (3), and an oil storage tank (18) is provided on the housing (1) below the oil outlet. The centrifugal force generated by the horizontal vortex oil mist separator (3) separates large oil mist particles from the air and discharges them from the oil outlet into the oil storage tank (18). A secondary filtration module (19) is installed inside the housing (1) located above the horizontal vortex oil mist separator (3); The three-stage filtration module (20) is located inside the housing (1) above the two-stage filtration module (19); the centrifugal fan (2) is located above the three-stage filtration module (20), and the exhaust port (102) is located on the housing (1) above the centrifugal fan (2).

2. A vertical oil mist purifier according to claim 1, characterized in that: The housing (1) is provided with an oil drain pipe (21) that is connected to the oil storage tank (18).

3. A vertical oil mist purifier according to claim 1, characterized in that: A first support frame (22) is fixedly installed on the inner wall of the box (1) located above the oil storage tank (18), and the horizontal vortex oil mist separator (3) is fixed on the first support frame (22).

4. A vertical oil mist purifier according to claim 1, characterized in that: Channel steel (23) is fixedly installed on both sides of the inner wall of the box (1) above the horizontal vortex oil mist separator (3). The secondary filter module (19) is a filter plate, which is inserted into the channel steel (23).

5. A vertical oil mist purifier according to claim 4, characterized in that: A second support frame (24) is fixedly installed on the inner wall of the box (1) located above the filter plate. The three-stage filtration module (20) is the main filter element, and the main filter element is snapped onto the second support frame (24).

6. A vertical oil mist purifier according to claim 5, characterized in that: A partition (25) is fixedly installed on the inner wall of the box (1) located above the main filter element, and a suction ring (26) is provided on the partition (25); A third support frame (27) is fixedly installed on the partition plate (25). The centrifugal fan (2) includes a motor (201) fixedly installed on the third support and an impeller (202) fixedly connected to the output shaft of the motor (201). The impeller (202) is located on the side close to the suction ring (26).

7. A vertical oil mist purifier according to claim 1, characterized in that: A four-stage filtration module (28) is installed on the housing (1) located at the exhaust port (102).

8. A vertical oil mist purifier according to claim 7, characterized in that: The four-stage filtration module (28) includes a housing (281) fixedly mounted on the outer wall of the housing (1) and a secondary filter element (282) snapped into the housing (281); The secondary filter element (282) is located above the exhaust port (102), and the outer casing (281) is provided with a secondary exhaust port (283).

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