Oil smoke removal cover and manufacturing method

Abstract

The invention discloses an oil smoke removal cover and a manufacturing method, the oil smoke removal cover comprises an oil smoke separation shell, a motor and an oil smoke separation disc, the motor and the oil smoke separation disc are located in the shell, the oil smoke separation disc is controlled by the motor to rotate, an air inlet is formed in the front of the oil smoke separation disc, and a back plate corresponding to the oil smoke separation disc is arranged in the oil smoke separation shell; the ratio of the rotating speed of the motor to the diameter of the oil-smoke separation disc is 1.3-2.8, and the ratio of the distance from the oil-smoke separation disc to the back plate to the diameter of the oil-smoke separation disc is 0.2-0.5. By controlling the rotating speed and the diameter of the oil-smoke separation disc, friction between wind and the oil-smoke separation disc is reduced, and noise is reduced. The noise reduction cover is used for blocking and reflecting noise in places where the noise is large, and the noise is prevented from being spread to people.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen fume exhaust equipment, and in particular to an oil fume hood and a manufacturing method thereof. Background Art

[0002] The household range hoods or commercial smoke exhaust system equipment currently used on the market are essentially composed of smoke hoods, air ducts, and fans, but the shapes, sizes, and powers of these three parts are different.

[0003] The air ducts and fans are very likely to be contaminated with oil after being used for a period of time, which greatly reduces the smoke exhaust effect and requires frequent manual cleaning. To solve this problem, the existing technology is to set at least one high-speed rotating oil fume separation plate at the air inlet of the smoke hood, commonly known as an oil-slinging plate, also called a dynamic interceptor. The principle is: the motor drives the high-speed rotating oil fume separation plate, and the spokes evenly distributed on the oil fume separation plate cut and intercept the oil fume molecules, adsorb them on the spokes, and then throw them out by centrifugation, thereby realizing oil fume separation, ensuring that the air ducts and fans at the rear end are not contaminated by oil fume and avoid frequent cleaning. Its effect is significantly better than the traditional fixed-state interception oil net, but it creates a new problem, that is, the noise is relatively loud.

[0004] Chinese patent application number CN201020056752.7 discloses a dynamic interception and recovery range hood for household kitchens. The range hood uses at least one dynamic physical shield to separate oil fumes at the range hood opening. The effect is remarkable, but the noise is relatively loud. The reason is that the high-speed rotating dynamic interception disk sweeps the wind, generating high-frequency noise, commonly known as "wind whistling". Although a decorative air-distributing oil net is provided in front, it is large and open, and basically does not work. This is why the product has been difficult to promote in the market so far.

[0005] The Chinese patent application number 202121807181.0 discloses a rectangular commercial kitchen fume purification device, which is actually a fume hood with fume separation. The fume hood produces a lot of noise due to the high-speed rotating fume separation plate, and there is no noise reduction treatment, which has a certain impact on the chef. At the same time, the equipment has a complex structure and large size, and the production, transportation and installation costs are relatively high. This is also the reason why the product is difficult to mass-produce and promote. Summary of the Invention

[0006] In order to solve the problem of high noise caused by the above-mentioned oil fume separation plate, the present invention proposes an oil fume hood, which effectively reduces noise by optimizing the design of the oil fume hood structure, and then provides a method for manufacturing the oil fume hood.

[0007] The technical solution adopted by the present invention is to design a fume hood, including an oil fume separation shell, the oil fume separation shell is connected to the air inlet and the air outlet, an oil fume separation disk is provided in the oil fume separation shell and is located between the air inlet and the air outlet, an oil fume separation disk is provided with an oil fume flow hole, the oil fume separation disk is controlled to rotate by a rotating device so that the oil fume passing through is separated, a silencer cover is provided in front of the oil fume separation disk, and the air inlet is opened on the silencer cover; the ratio of the rotation speed of the oil fume separation disk to the diameter of the oil fume separation disk is 1.3 to 2.8 The unit of the rotation speed of the oil fume separation disk is revolutions per minute, the unit of the diameter of the oil fume separation disk is millimeters, and the ratio of the distance from the oil fume separation disk to the back plate of the oil fume separation shell to the diameter of the oil fume separation disk is 0.2 to 0.5; the diameter of the air inlet is smaller than the diameter of the oil fume separation disk, and the difference between the diameter of the circle corresponding to the effective air inlet area of ​​the air inlet converted into a circular area and the diameter of the oil fume separation disk is 60 to 260 mm; the angle between the line from the edge of the air inlet to the edge of the oil fume separation disk and the oil fume separation disk is 26° to 68°.

[0008] In some embodiments, the oil fume separation housing has a back plate corresponding to the oil fume separation disc, and the silencer cover is arranged parallel to the back plate.

[0009] In some embodiments, the air inlet and the air outlet are oriented perpendicular to each other.

[0010] In some embodiments, the air inlet is provided with a protective mesh, and the opening rate of the protective mesh is 40-100%.

[0011] In some embodiments, a reinforcement ring is fixed to the edge of the oil fume separation disk, the thickness of the reinforcement ring in the radial direction of the oil fume separation disk is 0.8 to 4 mm, and the width of the reinforcement ring in the axial direction of the oil fume separation disk is 8 to 40 mm.

[0012] In some embodiments, one end of the reinforcement ring is axially connected to the oil fume separation disk.

[0013] In some embodiments, the other end of the reinforcement ring faces the air inlet.

[0014] In some embodiments, the diameter of the oil fume separation disc is 360-600 mm.

[0015] In some embodiments, the oil fume separation housing includes a coaxial oil fume separation cylinder that sheathes the oil fume separation tray. Oil adsorbed onto the oil fume separation tray is ejected into the oil fume separation cylinder, which has an oil outlet at its bottom. The oil flows through the outlet into an oil sump below the housing. A downwardly curved upper smoke shield is located above the exterior of the air inlet, and side smoke shields are located on both sides of the exterior of the air inlet.

[0016] A method for manufacturing the oil fume removal hood is as follows:

[0017] First, the number of oil fume separation plates is determined according to the oil fume flow rate;

[0018] Then, the lengths of the oil fume separation housing and the upper smoke baffle are determined according to the number of the oil fume separation discs;

[0019] Then, install the oil fume separation cylinder, the oil fume separation plate, and the muffler cover onto the oil fume separation housing;

[0020] Finally, the upper smoke shield is installed above the oil fume separation shell, and the side smoke shields are installed on both sides of the oil fume separation shell.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention reduces the friction between the wind and the oil fume separation disk by controlling the rotation speed and diameter of the oil fume separation disk. The noise generated outside the separation disk is relatively large, and the silencer cover can block the noise, so that the noise is reflected into the shell, preventing it from propagating toward people. The smaller sound waves near the center of the oil fume separation disk are propagated toward the smoke hood through the air inlet due to diffuse reflection. Since the air inlet is narrow and the propagation direction is opposite to the air inlet direction, the propagation toward people is further reduced, and the degreasing and air volume are not affected, thus solving the noise generated during the operation of the oil fume separation disk. The present invention assembles the shell and the smoke baffle into modules with screws, which greatly reduces the production, transportation, and installation costs, and solves the problems of the current commercial oil fume hoods with complex structures, large volumes, and high production and installation costs. It is suitable for large-scale production and promotion and has broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is described in detail below with reference to specific embodiments and accompanying drawings. To illustrate details and facilitate understanding of its principles, the drawings are not necessarily drawn to scale, and similar reference numerals may describe similar components in different views. The accompanying drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Among them:

[0024] Figure 1 It is a cross-sectional schematic diagram of a fume hood.

[0025] Figure 2 It is a schematic diagram of the oil fume separation plate.

[0026] Figure 3 yes Figure 2 AA cross-section diagram.

[0027] Figure 4 It is a schematic diagram of multiple fume hoods connected side by side into one.

[0028] Figure 5 It is a three-dimensional exploded schematic diagram of a fume hood combined with two separation plates.

[0029] Figure: 1. Fume separator housing; 2. Motor; 3. Fume separator plate; 31. Spokes; 4. Air inlet; 5. Sound-absorbing material; 6. Silencer cover; 7. Air outlet; 8. Connecting wires; 9. Oil sump; 10. Upper smoke deflector; 11. Back plate; 12. Reinforcement ring; 13. Fume separator cylinder; 14. Center plate; 15. Air duct; 16. Fan; 17. Side smoke deflector. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention, which are further described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments, and the following embodiments do not limit the inventions involved in the claims. In addition, not all combinations of features described in the embodiments are necessarily required for the solutions of the invention.

[0031] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0032] Example

[0033] like Figure 1 、 2As shown in Figures 3 and 5, a fume removal hood includes an oil fume separation shell 1 located in the shell, the oil fume separation shell 1 is connected to the air inlet 4 and the air outlet 7, the air outlet 7 is usually connected to a fan, so that the oil fume enters the oil fume separation shell 1 from the air inlet 4 and is discharged from the air outlet 7, the oil fume separation shell 1 is provided with an oil fume separation plate 3 located between the air inlet 4 and the air outlet 7, the oil fume separation plate 3 is provided with an oil fume flow hole, the oil fume separation plate 3 is controlled to rotate by a rotating device, so that the passing oil fume is separated, and a silencer cover 6 is provided in front of the oil fume separation plate 3, and the air inlet 4 is opened at the center position of the silencer cover 6 corresponding to the center of the separation plate. When the oil fume separation disc 3 rotates, it generates centrifugal force on the airflow, causing the airflow to move from the center to the edge of the separation disc, thereby reducing the pressure between the air inlet 4 and the separation disc, and generating an adsorption effect on the air inlet 4. In addition, due to the presence of the silencer cover 6, the airflow can only move into the cavity behind the oil fume separation disc 3, so that the airflow between the oil fume separation disc 3 and the silencer cover 6 has a certain flow rate, thereby also generating a negative pressure between the oil fume separation disc 3 and the silencer cover 6. This negative pressure causes the silencer cover 6 to be subjected to the pressure of the external atmosphere. This pressure fixes the area near the air inlet edge of the silencer cover 6 relative to the oil fume separation housing 1, thereby preventing the air inlet edge of the silencer cover 6 from vibrating and generating large noise. Although the rotation of the separation disc will cause the pressure at the edge of the separation disc to be large, because the silencer cover corresponding to this position is fixed to the housing by bolts, the silencer cover at this position is also firmly fixed and does not generate vibration noise. Moreover, the silencer cover can block the noise generated by the edge of the separation disc, so that the noise is reflected into the housing, preventing it from being transmitted to people.

[0034] The oil fume separation shell 1 is provided with an oil fume separation cylinder 13 which is coaxially sleeved on the outside of the oil fume separation plate 3. When the oil fume passes through the oil fume separation plate 3, the rotating oil fume separation plate 3 throws the oil in the oil fume onto the oil fume separation cylinder 13, and the smoke is discharged through the air outlet 7, thereby realizing the separation of the oil fume.

[0035] The rotating device is a motor 2 arranged in the oil fume separation shell 1, and the oil fume separation plate 3 is connected to the rotating shaft of the motor 2. The oil fume separation plate 3 of this embodiment includes a plurality of spokes 31 distributed radially with the rotating shaft as the center, and the gaps between the spokes 31 are the oil fume flow holes.

[0036] The oil fume separation housing 1 includes a back plate 11 corresponding to the oil fume separation tray 3. The motor 2 is located between the back plate 11 and the oil fume separation tray 3. The motor 2 and the oil fume separation tray 3 are located within a cavity within the oil fume separation housing 1, which serves as the oil fume separation chamber. Sound-absorbing material 5 is provided on the back plate 11.

[0037] The diameter of the oil fume separation plate is 360 to 600 mm.

[0038] The ratio of the motor speed to the oil fume separation disc diameter is 1.3 to 2.8, the unit of the oil fume separation disc speed is revolutions per minute, and the unit of the oil fume separation disc diameter is millimeters. That is, the ratio of the motor speed (in revolutions per minute) to the oil fume separation disc diameter (in millimeters) is 1.3 to 2.8. After the motor speed is determined, the diameter of the oil fume separation disc needs to be within an appropriate range to achieve a good noise reduction effect. The faster the oil fume separation disc speed, the greater the noise generated. At the same time, the larger the diameter of the oil fume separation disc, the greater the noise. The smaller the diameter, the smaller the noise, but the air volume is also smaller. In order to ensure the air volume and reduce the noise, it is better to control the motor speed (in revolutions per minute) to the oil fume separation disc diameter (in millimeters) to be 1.3 to 2.8. The optimal solution is: when the oil fume separation disc diameter is large, the ratio is 1.3 to 2, and when the oil fume separation disc diameter is small, the ratio is 2 to 2.8.

[0039] The ratio of the distance from the oil fume separation plate to the back plate of the oil fume separation shell to the diameter of the oil fume separation plate is 0.2 to 0.5, that is, the ratio of the distance from the center point of the oil fume separation plate along the central axis of the oil fume separation plate to the back plate of the oil fume separation shell to the diameter of the oil fume separation plate is 0.2 to 0.5. The ratio of the distance from the oil fume separation plate to the back plate to the diameter of the oil fume separation plate cannot be too small or too large, so that the noise can be partially absorbed by the cavity.

[0040] The farther the oil fume separation plate is from the person, the weaker the sound wave becomes when it is transmitted to the person, but the oil fume separation plate cannot be too close to the back plate of the shell, otherwise it will affect the exhaust effect and separation effect. Therefore, the best ratio of the distance from the center point of the oil fume separation plate along the central axis of the oil fume separation plate to the back plate to the diameter of the oil fume separation plate is 0.2 to 0.5.

[0041] To prevent noise from escaping the separation chamber, a silencer cover 6 is installed at the air inlet 4. The air inlet 4 on the silencer cover 6 is much smaller than the noise-generating oil fume separation disc 3, creating a reverse horn effect that reduces the transmission of sound waves. However, the cover cannot be too small, otherwise it will affect air extraction. If the air inlet is circular, the difference between the oil fume separation disc diameter and the air inlet diameter should be 60 to 260 mm, ensuring an air speed of 4 to 8 meters per second.

[0042] To prevent foreign matter from entering, the air inlet is provided with a protective mesh, the opening rate of which is 40% to 100%. A protective grille or net can be provided at the air inlet as a protective mesh. In this embodiment, a mesh is provided in a certain area on the silencer cover as the air inlet.

[0043] The noise-reducing cover is arranged in parallel with the back plate so that noise is reflected and superimposed between the noise-reducing cover and the back plate to offset part of the energy.

[0044] The diameter of the air inlet is smaller than the diameter of the oil fume separation disk. The difference between the diameter of the circle corresponding to the effective air inlet area converted to a circular area and the diameter of the oil fume separation disk is 60 to 260 mm. That is, if the air inlet is a special shape, the difference between the diameter of the circle converted to the area of ​​the effective air inlet area and the diameter of the oil fume separation disk is 60 to 260 mm. Furthermore, the muffler cover cannot be too close to the oil fume separation disk, otherwise it will affect air extraction, nor too far away, otherwise it will affect noise reduction and smoke collection.

[0045] To ensure that the air inlet 4 does not face people and reduce the impact of noise on people, the front plate and back plate 11 of the separation shell are parallel, and the air inlet 4 is perpendicular to the air outlet 7 so that the noise can be partially offset in the cavity.

[0046] The angle a formed by the line 8 connecting the edge of the air inlet to the edge of the oil fume separation tray and the oil fume separation tray is 26° to 68°. That is, a line drawn from any point on the outer edge of the circular air inlet on the muffler cover to the outer circle of the oil fume separation tray closest to the muffler cover forms an angle of 26° to 68° with the oil fume separation tray.

[0047] A downwardly bent upper smoke baffle is provided above the exterior of the air inlet. An upper smoke baffle 10 is provided above and in front of the exterior of the air inlet 4 to block and eliminate noise reflected from the air inlet 4. The upper smoke baffle 10 can also be a plate that can be rotated and adjusted relative to the main body of the oil fume separation housing 1 to adjust its angle relative to the air inlet 4, allowing the user to adjust it according to actual needs. Side smoke baffles 17 are provided on both sides of the exterior of the air inlet. The side smoke baffles and the upper smoke baffle form a cover located in front of the air inlet to cover the area in front of the air inlet, thereby facilitating the entry of smoke into the air inlet.

[0048] The upper smoke baffle 10 is detachably connected to the oil fume separation housing 1. For example, the upper smoke baffle 10 and the oil fume separation housing 1 can be detachably connected by splicing, which is convenient for transportation and installation, and also convenient for splicing multiple oil fume hoods.

[0049] An oil collecting tank 9 is provided below the oil fume separation plate 3 to collect the oil separated from the oil fume.

[0050] The cooking fumes rise into the smoke bin composed of the upper smoke baffle 10 and the separation shell. Due to the action of the external fan and the separation plate, the oil smoke in the smoke bin enters the oil smoke separation shell 1 through the air inlet 4 on the silencer cover 6. The high-speed rotating oil smoke separation plate 3 sweeps the passing oil smoke, so that the oil is adsorbed on the oil smoke separation plate 3 and thrown out to the inner wall of the oil smoke separation cylinder 13 by centrifugal force. Due to gravity, it flows into the oil collecting tank 9 through the oil discharge port at the bottom of the oil fume separation cylinder 13, and the clean air enters the air duct system through the upper air outlet 7 of the separation shell.

[0051] A reinforcement ring is fixed to the edge of the oil fume separation disc. Its radial thickness is 0.8 to 4 mm, for example, 1.5 mm or 2 mm. Its axial width is 8 to 40 mm. The reinforcement ring is connected to the ends of the spokes, securing them and preventing noise caused by deformation during high-speed rotation.

[0052] The radius of the traditional oil fume separation disc 3 is small, so the rotation speed is fast. In order to reduce the resistance, its reinforcement ring is thinner. When the separation disc rotates at high speed, the edge with smaller width easily generates noise when interacting with the air. At the same time, since the traditional reinforcement ring is thinner, it only serves to connect the ends of the spokes 31 and cannot prevent the edge of the separation disc from warping and vibrating when it rotates.

[0053] The reinforcing ring 12 of this embodiment is thinner in radial direction and wider in axial direction. Under the same quality, it has better ability to prevent the edge of the disk from warping and deformation, can prevent the end from vibrating during rotation, and significantly and effectively reduce "wind whistling".

[0054] Furthermore, one end of the reinforcing ring 12 is axially connected to the oil fume separation disc 3 , that is, the spoke 31 is axially connected to one end face of the reinforcing ring 12 , so that the reinforcing ring 12 is more capable of resisting deformation of the oil fume separation disc 3 .

[0055] The other end of the reinforcement ring 12 faces the air inlet 4, that is, the end surface of the reinforcement ring 12 not connected to the spokes 31 faces the air inlet 4, so that the reinforcement ring 12 is located between the oil fume separation disc 3 and the muffler cover 6. In this way, the reinforcement ring 12 helps to block the flue gas entering from the air inlet from flowing radially along the oil fume separation disc 3, thereby allowing the oil fume to pass between the spokes 31, thereby facilitating the oil to adhere to the spokes 31. In other words, the reinforcement ring 12 blocks the radial flow of airflow, preventing airflow from flowing through the gap between the oil fume separation cylinder 13 and the oil fume separation disc 3.

[0056] Since the spokes on the oil fume separation plate are connected to the end sides of the reinforcement ring instead of the middle, the influence of the reinforcement ring on the outward oil throwing of the separation plate can be reduced, which is conducive to the oil being thrown out of the separation plate along the spokes and reducing the obstruction of the cylindrical reinforcement ring to oil throwing. In other words, the reinforcement ring is arranged in this way. While improving the strength, it also has the effect of preventing the oil fume from short-circuiting and losing from the sides, and at the same time avoids the obstruction to oil throwing.

[0057] The oil fume separation disk 3 is provided with a central disk 14 corresponding to the air inlet 4, so that the oil fume entering from the air inlet 4 is blocked by the central disk 14 and then flows radially along the oil fume separation disk 3, that is, the central disk 14 plays a role in guiding and dispersing the oil fume in the radial direction.

[0058] like Figure 4 As shown, when the range hood of this embodiment is used in spaces with large amounts of oil smoke, such as hotels and restaurants, multiple range hoods can be connected in parallel to form a large fume collection hood, which is then connected to a high-power fan 16 through an air duct 15. This is suitable for separating oil smoke in large commercial spaces. When the range hood is used in homes with smaller amounts of oil smoke, a fan can be connected to the air outlet of the range hood, thereby integrating the range hood and fan into a range hood.

[0059] The manufacturing method of the oil fume hood is as follows:

[0060] First, the number of oil fume separation plates is determined according to the oil fume flow rate;

[0061] Then, the lengths of the oil fume separation housing and the upper smoke baffle are determined according to the number of the oil fume separation discs;

[0062] Then, the oil fume separation cylinder, the oil fume separation plate, and the muffler cover are installed on the oil fume separation housing, and the oil fume separation plate is arranged along the length direction of the oil fume separation housing;

[0063] Finally, an upper smoke baffle is installed above the oil fume separation shell, and side smoke baffles are installed on both sides of the oil fume separation shell, thereby forming an oil fume hood with multiple oil fume separation plates.

[0064] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A fume hood, comprising an oil fume separation shell and a fume baffle, wherein the oil fume separation shell is connected to an air inlet and an air outlet, wherein an oil fume separation disk is disposed in the oil fume separation shell and is located between the air inlet and the air outlet, wherein an oil fume flow hole is disposed on the oil fume separation disk, and wherein the oil fume separation disk is controlled to rotate by a rotating device so that the oil fume passing through is separated, characterized in that: A silencer cover is correspondingly arranged in front of the oil fume separation disk, and the air inlet is opened on the silencer cover; the ratio of the rotation speed of the oil fume separation disk to the diameter of the oil fume separation disk is 1.3-2.8, the unit of the rotation speed of the oil fume separation disk is revolutions / minute, the unit of the diameter of the oil fume separation disk is millimeters, and the ratio of the distance from the oil fume separation disk to the back plate of the oil fume separation shell to the diameter of the oil fume separation disk is 0.2-0.5; the diameter of the air inlet is smaller than the diameter of the oil fume separation disk, and the difference between the corresponding circular diameter after the effective air inlet area of ​​the air inlet is converted into a circular area and the diameter of the oil fume separation disk is 60-260 mm; the angle between the line from the edge of the air inlet to the edge of the oil fume separation disk and the oil fume separation disk is 26°-68°.

2. The oil fume removal hood according to claim 1, characterized in that: The oil fume separation shell has a back plate corresponding to the oil fume separation disc, and the muffler cover is arranged parallel to the back plate.

3. The oil removal hood according to claim 1 or 2, characterized in that: The air inlet and the air outlet are directed perpendicularly to each other.

4. The oil fume removal hood according to claim 1, characterized in that: The air inlet is provided with a protective mesh, and the opening rate of the protective mesh is 40-100%.

5. The oil fume removal hood according to claim 1, characterized in that: A reinforcing ring is fixed to the edge of the oil fume separation disk. The thickness of the reinforcing ring in the radial direction of the oil fume separation disk is 0.8 to 4 mm, and the width of the reinforcing ring in the axial direction of the oil fume separation disk is 8 to 40 mm.

6. The oil fume removal hood according to claim 5, characterized in that: One end of the reinforcement ring is axially connected to the oil fume separation disk.

7. The de-oiling fume hood according to claim 6, characterized in that: The other end of the reinforcement ring faces the air inlet.

8. The oil fume removal hood according to claim 1, characterized in that: The diameter of the oil fume separation plate is 360 to 600 mm.

9. The oil-removing fume hood according to claim 1, characterized in that: The oil fume separation shell is provided with an oil fume separation cylinder which is coaxially sleeved on the outside of the oil fume separation plate. When the oil fume passes through the oil fume separation plate, the rotating oil fume separation plate throws the oil in the oil fume onto the oil fume separation cylinder. An oil flow port is provided at the bottom of the oil fume separation cylinder. A downwardly bent upper smoke baffle is provided above the outside of the air inlet, and side smoke baffles are provided on both sides of the outside of the air inlet.

10. A method for manufacturing the oil fume hood as claimed in claim 9, characterized in that: First, the number of the oil fume separation plates is determined according to the oil fume flow rate; Then, the lengths of the oil fume separation housing and the upper smoke baffle are determined according to the number of the oil fume separation discs; Then, the oil fume separation cylinder, the oil fume separation plate, and the muffler cover are installed on the oil fume separation housing; Finally, an upper smoke baffle is installed above the oil fume separation shell, and side smoke baffles are installed on both sides of the oil fume separation shell.

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