Oil fume purifier

Abstract

The oil fume purifier comprises a separating disc and a power device, the separating disc comprises a fixed disc and a plurality of intercepting blades, gaps through which oil fume flows are formed between adjacent intercepting blades, all or part of the intercepting blades are provided with heating portions for heating the intercepting blades, and the power device is fixedly connected with the fixed disc and used for providing power for driving the fixed disc to rotate the plurality of intercepting blades. The oil fume purifier provided by the embodiment of the present application utilizes the heating portions to heat the intercepting blades, so that when the oil fume flow passes through the intercepting blades for interception, the oil fume flow will not be condensed and adhered to the intercepting blades due to the condensation effect of the intercepting blades, the surface of the intercepting blades is not attached or substantially not attached with grease and / or solid mixture, so that not only the oil fume interception efficiency of the intercepting blades can be effectively ensured, but also the intercepting blades do not need to be cleaned frequently, and the cleaning work of the separating disc is greatly simplified.

Description

Technical Field

[0001] This invention relates to the field of oil fume separation technology, and in particular to an oil fume purifier. Background Technology

[0002] With the booming development of the catering industry, restaurants, hotels, and other catering businesses, as well as modern families, generate a large amount of oily fumes during the cooking process. If these fumes are not treated in time, they will not only harm the health of the cooks, but also pollute the atmospheric environment.

[0003] Therefore, devices that separate and purify cooking fumes (such as range hoods) have become an effective means of treating cooking fumes. However, after prolonged use, the separation discs of range hoods (especially the interceptor blades, which are mainly used to separate the airflow of cooking fumes) accumulate a large amount of grease and / or solid-liquid mixtures. These grease and / or solid-liquid mixtures severely affect the efficiency of the interceptor blades in separating cooking fumes. Therefore, in order to improve the efficiency of the interceptor blades in separating cooking fumes and reduce the adhesion of grease and / or solid-liquid mixtures on the interceptor blades, frequent cleaning of the interceptor blades is necessary. The traditional cleaning method usually involves disassembling the entire separation disc from the range hood to clean the interceptor blades. However, this cleaning method is very cumbersome and the cleaning effect is not ideal. Summary of the Invention

[0004] This invention discloses an oil fume purifier that can effectively heat the oil fume separation disc, thereby reducing the adhesion of grease and / or solid mixtures on the separation disc, eliminating the need for additional cleaning, and providing an ideal anti-oil sticking effect.

[0005] To achieve the above objectives, embodiments of the present invention disclose an oil fume purifier, including...

[0006] A separation disc, comprising a fixed disc and a plurality of elongated fume-intercepting blades, the plurality of fume-intercepting blades being radially distributed and fixed to the fixed disc, with gaps forming between adjacent fume-intercepting blades for the passage of fume airflow, and all or part of the fume-intercepting blades being provided with one or more heating elements for heating the fume-intercepting blades; and

[0007] A power unit, which is fixedly connected to the fixed plate, is used to provide the fixed plate with the power to drive the plurality of intercepting fan blades to rotate, so that the plurality of intercepting fan blades intercept and separate the grease and / or solid mixture in the oil fume airflow.

[0008] As an optional implementation, in an embodiment of the present invention, the heating part is a mounting cavity for inserting a heating element, a heating cavity for filling with a heating medium, or a heating channel for introducing a heating medium.

[0009] As an optional implementation, in an embodiment of the present invention, the heating part is a heating channel for introducing the heating medium;

[0010] The fixed plate is provided with a first cavity for introducing the heating medium, and the first cavity is connected to each of the intercepting fan blades provided with the heating channel.

[0011] As an optional implementation, in an embodiment of the present invention, the heating channel extends along the length extension direction of the intercepting fan blade, and the heating channel may be of the same length or different length from the intercepting fan blade.

[0012] As an optional implementation method, in an embodiment of the present invention,

[0013] The heating section is a heating chamber for filling with a heating medium;

[0014] The fixed plate is provided with a first cavity for filling with a heating medium, and the first cavity is connected to each of the intercepting fan blades provided with the heating cavity.

[0015] As an optional implementation, in an embodiment of the present invention, the heating cavity extends along the length of the intercepting fan blade, and the heating cavity may be the same length or different length from the intercepting fan blade.

[0016] As an optional implementation method, in an embodiment of the present invention,

[0017] The heating section is a mounting cavity for inserting a heating element;

[0018] The fixed plate is provided with a first cavity for supplying power to the heating element, and the first cavity is connected to each of the intercepting fan blades provided with the heating element.

[0019] As an optional implementation method, in an embodiment of the present invention,

[0020] One end of the intercepting blade is provided with a root, which is used to fix it to the fixing plate;

[0021] For the intercepting fan blade equipped with the heating part, the root of the intercepting fan blade is provided with a connecting part that communicates with the heating part, and the connecting part communicates with the first cavity. The first cavity, the connecting part, and the heating part together form a first channel for introducing the heating medium.

[0022] As an optional implementation, in an embodiment of the present invention, the fixed disk is further provided with a circumferential groove and an annular groove. The circumferential groove is arranged along the circumference of the fixed disk and opens outward. The annular groove is disposed in the fixed disk and communicates with the circumferential groove. The angle between the opening direction of the circumferential groove and the opening direction of the annular groove is a right angle, an obtuse angle, or an acute angle. The root is inserted into the circumferential groove, and the end face of the root surrounds the annular groove and together with the bottom surface of the annular groove forms the first cavity.

[0023] As an optional implementation method, in an embodiment of the present invention,

[0024] The fixed plate includes an upper fixed plate portion and a lower fixed plate portion. The upper fixed plate portion and the lower fixed plate portion are connected and the circumferential groove is formed at the connection between the upper fixed plate portion and the lower fixed plate portion.

[0025] The bottom surface of the annular groove is provided with a first protrusion, and the end face of the root surrounds the outer periphery of the first protrusion and together with the upper surface of the first protrusion and the lower surface of the upper fixed plate portion, forms the first cavity.

[0026] As an optional implementation, in an embodiment of the present invention, a second protrusion is provided on the side of the upper fixed plate portion facing the lower fixed plate portion, and the second protrusion is engaged with the first protrusion to form the circumferential groove between the upper fixed plate portion and the lower fixed plate portion.

[0027] As an optional implementation, in an embodiment of the present invention, the first protrusion is provided with a plurality of positioning posts, which are arranged along the center of the first protrusion. The second protrusion is provided with a plurality of positioning holes corresponding to the plurality of positioning posts. The plurality of positioning holes are fixed to the plurality of positioning posts by fasteners, so as to realize the fixed connection between the upper fixed plate portion and the lower fixed plate portion.

[0028] As an optional implementation, in an embodiment of the present invention, the root portion includes a snap-fit ​​portion and an insertion portion extending outward from the snap-fit ​​portion, the insertion portion being used to insert into the circumferential groove, and the snap-fit ​​portion being used to snap into the annular groove.

[0029] As an optional implementation, in an embodiment of the present invention, the snap-fit ​​portion and / or the insertion portion is a wedge-shaped block, and the thickness of the wedge-shaped block gradually decreases from the center away from the center of the separation disc to the center of the separation disc.

[0030] As an optional implementation, in an embodiment of the present invention, the cross-section of the intercepting blade is any one or any combination of V-shaped, W-shaped, Z-shaped, or polygonal.

[0031] As an optional implementation, in an embodiment of the present invention, the cross-section of the intercepting blade is V-shaped, including a long strip-shaped first sub-blade and a second sub-blade connected to the first sub-blade, wherein the first sub-blade and / or the second sub-blade are provided with the heating part.

[0032] As an optional implementation, in an embodiment of the present invention, the cross-section of the intercepting blade is V-shaped, including a long strip-shaped first sub-blade and a second sub-blade, a long side of the second sub-blade is connected to a long side of the first sub-blade to form an intersection, and the heating part is disposed at the intersection.

[0033] As an optional implementation method, in an embodiment of the present invention,

[0034] The intercepting blade includes a long strip-shaped first sub-blade and a second sub-blade. A long side of the second sub-blade is connected to a long side of the first sub-blade to form an intersection, so that the cross-section of the intercepting blade is V-shaped.

[0035] The concave side of the V-shaped cross-section of the intercepting blade is the inner side of the intercepting blade, and the side opposite to the concave side of the V-shaped cross-section is the outer side of the intercepting blade.

[0036] The intersecting portion is provided with a protruding strip, the length extension direction of the protruding strip is in the same direction as the length extension direction of the first sub-blade, the protruding strip is located inside the intercepting wind blade, and the heating part is located between the protruding strip and the intersecting portion.

[0037] As an optional implementation, in an embodiment of the present invention, the outer boundary of the cross-section of the protrusion along its length direction is arc-shaped, wavy, polygonal, or a combination thereof.

[0038] As an optional implementation, in an embodiment of the present invention, the angle bisectors of each of the intercepting blades coincide, and the first sub-blade and the second sub-blade of the intercepting blade are symmetrical about the angle bisector of the intercepting blade.

[0039] As an optional implementation, in an embodiment of the present invention, the power device includes a power mechanism and a bracket. The power mechanism is fixedly installed on the bracket, and the rotating shaft of the power mechanism is fixedly connected to the fixed disk. The rotating shaft of the power mechanism is provided with a second cavity communicating with the first cavity, and the second cavity is used to introduce the heating medium into the first cavity.

[0040] As an optional implementation, in an embodiment of the present invention, the second cavity is provided with a plurality of first through holes at the position where the rotating shaft is connected to the fixed disk. The first through holes are connected to the first cavity and are used to transport the heating medium in the second cavity to the first cavity.

[0041] As an optional implementation, in an embodiment of the present invention, the fume purifier further includes an oil receiving tray, the separation tray is located inside the oil receiving tray, and the bracket is connected to the oil receiving tray so that the power mechanism is located above the oil receiving tray.

[0042] As an optional implementation, in an embodiment of the present invention, the bottom of the oil receiving tray is provided with an oil fume passage for the oil fume airflow to rise to contact the separation tray. The edge of the oil fume passage is provided with an annular plate protruding towards the inside of the oil receiving tray. The annular plate, the bottom wall of the oil receiving tray, and the inner side wall of the oil receiving tray form an oil receiving space for receiving the grease and / or solid mixture in the oil fume airflow intercepted and separated by the intercepting fan blades.

[0043] As an optional implementation, in an embodiment of the present invention, the annular plate is integrally formed on the edge of the fume passage, and when the separating disc is located in the oil receiving tray, the lower surface of the separating disc is spaced from the upper surface of the annular plate, and the outer edge of the separating disc is located in the oil receiving space.

[0044] Preferably, the bracket includes an upper surface and a lower surface disposed opposite to each other. The upper surface is provided with a positioning hole extending through to the lower surface. The power mechanism includes a motor having the rotating shaft and an extension plate circumferentially disposed around the motor. The motor passes through the positioning hole from bottom to top. The extension plate is fixedly connected to the lower surface of the bracket. The rotating shaft extends downward from the positioning hole and extends into the oil receiving tray and is fixedly connected to the fixed plate.

[0045] As an optional implementation, in an embodiment of the present invention, the cross-sectional shape of the heating part along its length direction is one or any combination of a circle, an ellipse, a fan shape or a polygon.

[0046] As an optional implementation, in an embodiment of the present invention, all or part of the intercepting fan blades are provided with a turbulence structure for generating turbulence when the oil fume airflow passes through the gap.

[0047] As an optional implementation, in an embodiment of the present invention, the intercepting fan blade with the heating part is further provided with the turbulence structure.

[0048] As an optional implementation method, in an embodiment of the present invention,

[0049] The cross-section of the intercepting blade has one or more bends, one side of the cross-section is the inner side of the intercepting blade, and the other side of the cross-section is the outer side of the intercepting blade;

[0050] One or more of the aforementioned turbulence structures are provided on the outer side of all or part of the intercepting blades, and / or one or more of the aforementioned turbulence structures are provided on the inner side of all or part of the intercepting blades.

[0051] As an optional implementation method, in an embodiment of the present invention,

[0052] The oil fume purifier is characterized in that the intercepting fan blade includes a long strip-shaped first sub-blade and a second sub-blade, with a long side of the first sub-blade connected to a long side of the second sub-blade, so that the cross-section of the intercepting fan blade is a V-shaped cross-section.

[0053] The concave side of the V-shaped cross-section is the inner side of the intercepting blade, and the opposite side is the outer side of the intercepting blade.

[0054] For the intercepting fan blade equipped with the aforementioned turbulence structure, the turbulence structure is provided on the outer side of the intercepting fan blade, and the heating element is provided on the inner side of the intercepting fan blade.

[0055] As an optional implementation, in an embodiment of the present invention, the intersection of the second sub-blade and the first sub-blade forms an intersection portion, the intersection portion including a first intersection portion located on the outer side of the intercepting blade and a second intersection portion located on the inner side of the intercepting blade, the turbulence structure being disposed in the first intersection portion and the heating portion being disposed in the second intersection portion.

[0056] As an optional implementation, in an embodiment of the present invention, the second intersecting portion is provided with the protrusion, and the heating part is disposed between the protrusion and the second intersecting portion.

[0057] As an optional implementation, in an embodiment of the present invention, the length extension direction of the convex strip is in the same direction as the length extension direction of the first sub-blade, and the outer boundary of the cross-section of the convex strip along its length direction is arc-shaped, wavy, zigzag, or a combination thereof.

[0058] As an optional implementation method, in an embodiment of the present invention,

[0059] For an intercepting fan blade equipped with the aforementioned turbulence structure, the end of the intercepting fan blade closer to the center of the separation disk is the first end, and the end farther from the center of the separation disk is the second end.

[0060] The turbulence structure is a long strip-shaped protrusion, a groove, or a combination of both. The turbulence structure extends from the first end to the second end. Alternatively, the length direction of the turbulence structure extends along the length direction of the intercepting blade, and the length of the turbulence structure is less than the length of the intercepting blade.

[0061] As an optional implementation, in an embodiment of the present invention, the outer boundary of the cross-section of the turbulence structure along its length direction is arc-shaped, wavy, polygonal, or a combination thereof.

[0062] As an optional implementation, in an embodiment of the present invention, the heating element is a heating wire or a heating tube, and the heating medium is a liquid and / or a gas.

[0063] As an optional implementation, in an embodiment of the present invention, the intercepting fan blades of the separation disk are distributed in multiple layers, and each layer of the intercepting fan blades includes multiple intercepting fan blades.

[0064] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0065] The fume purifier provided in this invention provides one or more heating elements on the intercepting fan blade for heating the fan blade. By heating the fan blade with these heating elements, the oil fume airflow will not condense and adhere to the fan blade when it passes through it. This ensures that the surface of the fan blade is free of or substantially free of grease and / or solid mixtures, thus effectively guaranteeing the oil fume interception efficiency of the fan blade and eliminating the need for frequent cleaning of the fan blade, greatly simplifying the cleaning of the separation disc.

[0066] Furthermore, the fume purifier provided in this embodiment of the invention, by setting a second cavity on the rotating shaft of the power mechanism and a first cavity on the fixed plate, and connecting the first cavity with the second cavity and the heating unit, allows heating medium to be delivered from the second cavity to the first cavity into the heating unit, thereby heating the intercepting fan blades. This internal heating method not only provides ideal heating effect but also reduces heat loss, making it more environmentally friendly and energy-efficient.

[0067] Furthermore, the fume purifier provided in this embodiment of the invention, by setting a turbulent flow structure on the intercepting fan blade to create turbulence when the fumes pass through the gap, can generate turbulence at the location of the fumes when they pass through the turbulent flow structure during the separation of the fumes by the separating disc. This not only causes a large number of oil droplets to accumulate at this location, but also slows down the speed of the fumes passing through this location, thereby extending the speed of the fumes passing through the gap of the intercepting fan blade, so that as many oil droplets as possible are separated, resulting in a better fume separation effect. Attached Figure Description

[0068] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0069] Figure 1 This is a schematic diagram of the structure of the fume purifier disclosed in Embodiment 1 of the present invention;

[0070] Figure 2 This is a structural schematic diagram of the fume purifier disclosed in Embodiment 1 of the present invention from another perspective.

[0071] Figure 3 This is a schematic diagram of the internal structure of the fume purifier disclosed in Embodiment 1 of the present invention;

[0072] Figure 4 This is a schematic diagram of the structure of the separation disc disclosed in Embodiment 1 of the present invention;

[0073] Figure 5 This is a schematic diagram of the intercepting wind turbine blade disclosed in Embodiment 1 of the present invention;

[0074] Figure 6 This is a structural schematic diagram of the intercepting wind blade disclosed in Embodiment 1 of the present invention from another perspective;

[0075] Figure 7 This is a schematic diagram of the structure of the fixed disk disclosed in Embodiment 1 of the present invention;

[0076] Figure 8 This is an internal sectional view of the fixed disk disclosed in Embodiment 2 of the present invention;

[0077] Figure 9 This is a schematic diagram of the connection between the fixed plate (the upper fixed plate part is omitted) and the intercepting fan blade disclosed in Embodiment 1 of the present invention;

[0078] Figure 10 This is a side view of the heating element disposed between the intersecting portion and the protruding strip, as disclosed in Embodiment 1 of the present invention;

[0079] Figure 11 These are schematic diagrams illustrating different heating element configurations disclosed in Embodiment 1 of the present invention.

[0080] Figure 12 This is a schematic diagram of the structure of the separation disk as a double-layer separation disk disclosed in Embodiment 1 of the present invention;

[0081] Figure 13 This is a schematic diagram of the structure of the first sub-blade and / or the second sub-blade having a heating part, as disclosed in Embodiment 2 of the present invention;

[0082] Figure 14 This is a schematic diagram of the heating part provided on the intersecting part, the first sub-blade and / or the second sub-blade as disclosed in Embodiment 3 of the present invention;

[0083] Figure 15 This is a side view of the heating element disposed inside the intercepting fan blade as disclosed in Embodiment 4 of the present invention;

[0084] Figure 16 This is a schematic diagram of the heating part disposed inside the intercepting fan blade and the intercepting fan blade having a protrusion strip disclosed in Embodiment 5 of the present invention;

[0085] Figure 17 This is a schematic diagram of the intercepting fan blade with the turbulence structure disclosed in Embodiment Six of the present invention;

[0086] Figure 18 This is a schematic diagram of the turbulence structure disclosed in Embodiment Six of the present invention, which is a protrusion or a groove;

[0087] Figure 19 This is a schematic diagram of the turbulence structure disclosed in Embodiment Six of the present invention, which is a single protrusion;

[0088] Figure 20 These are schematic diagrams of different cross-sectional shapes of the turbulence structure disclosed in Embodiment Six of the present invention;

[0089] Figure 21 This is a schematic diagram of the turbulence structure disclosed in Embodiment Six of the present invention, which consists of multiple protruding pillars. Detailed Implementation

[0090] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0091] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0092] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0093] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0094] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0095] This invention discloses an oil fume purifier that can effectively heat the oil fume separation disc, thereby reducing the adhesion of grease and / or solid mixtures on the separation disc, eliminating the need for additional cleaning, and providing an ideal anti-oil sticking effect.

[0096] The fume purifier provided in Embodiment 3 of the present invention will be described in detail below with reference to the accompanying drawings.

[0097] Example 1

[0098] Please refer to the following: Figures 1 to 4 Embodiment 1 of the present invention discloses an oil fume purifier, including a separation disk 1 and a power unit 2. The separation disk 1 includes a fixed disk 11 and a plurality of elongated intercepting fan blades 12 radially distributed around the center of the fixed disk 11. One end of each intercepting fan blade 12 is fixedly connected to the fixed disk 11. A gap 12a is formed between adjacent intercepting fan blades 12 for oil fume to pass through. All or part of the intercepting fan blades 12 are provided with one or more heating parts 12b for heating the intercepting fan blades 12. The power unit 2 is fixedly connected to the fixed disk 11 and is used to provide the fixed disk 11 with the power to drive the plurality of intercepting fan blades 12 to rotate, so that the plurality of intercepting fan blades 12 intercept and separate grease and / or solid mixtures in the oil fume.

[0099] Specifically, the intercepting fan blade 12 refers to a long, strip-shaped structure that can be installed on the fixed disk 11 of the oil fume separation disk 1, and rotates along with the fixed disk 11 when it rotates under external force, thereby achieving the interception and separation of grease and / or solid mixtures in the oil fumes. Preferably, the intercepting fan blade 12 is a flat, long strip structure. The purpose of using a flat, long strip structure for the intercepting fan blade 12 is that since the intercepting fan blade 12 needs to rotate at high speed to intercept the oil fume airflow, if the thickness of the intercepting fan blade 12 is too large, it may affect the rotational speed of the intercepting fan blade 12, which may affect the effectiveness of the intercepting fan blade 12 in intercepting the oil fume airflow. Therefore, the intercepting fan blade 12 of the present invention preferably adopts a flat, long strip structure.

[0100] It should be understood that when the intercepting fan blades 12 are installed on the fixed plate 11 of the oil fume separation plate 1, in order to improve the oil fume separation efficiency, the number of intercepting fan blades 12 should be multiple, specifically 100 to 300. Furthermore, a gap 12a should be formed between two adjacent intercepting fan blades 12 so that the oil fume airflow can enter into the gap 12a and contact the intercepting fan blades 12, thereby achieving the purpose of oil fume separation.

[0101] When the intercepting fan blades 12 are installed on the oil fume separation disc 1 and the disc 1 rotates at a certain speed, the oil fume airflow enters the disc 1 from one side. When the oil fume airflow passes through the gap 12a between adjacent intercepting fan blades 12, the grease, particulate matter, etc. in the oil fume will collide with the surfaces of the intercepting fan blades 12 on both sides of the gap 12a and be adsorbed onto the sides of the intercepting fan blades 12, and then thrown out along the radial direction of the intercepting fan blades 12, thereby achieving the oil fume separation effect. To provide the power for the oil fume airflow to pass through the separation disc 1, a negative pressure fan can be used to provide the suction power for the oil fume, or the suction power generated by the separation disc 1 itself can be used.

[0102] In this embodiment, the fixed connection between the intercepting fan blade 12 and the fixed plate 11 can be achieved by welding, riveting, bolt and screw connection, snap-fit ​​connection, pin connection, elastic deformation connection, locking connection, or plug-in connection, etc. Taking riveting as an example, if the intercepting fan blade 12 is riveted to the fixed plate 11, then any end of the intercepting fan blade 12 can be riveted to the fixed plate 11.

[0103] In this patent, the intercepting fan blade 12 has a heating element 12b, which can be used to heat the intercepting fan blade 12, thereby increasing its temperature. When the oil fume airflow passes through the intercepting fan blade 12, compared with the intercepting fan blade 12 without the heating element 12b, it not only does not affect the separation of the oil fume airflow, but also prevents the oil fume airflow from condensing and adhering on the surface of the intercepting fan blade 12. This allows the grease and / or solid mixture of the oil fume airflow to be thrown out, thereby improving the separation rate of the oil fume airflow to a certain extent, and also reducing the cleaning frequency of the intercepting fan blade 12.

[0104] It should be understood that the heating element 12b can be installed on the intercepting fan blade 12 or inside the intercepting fan blade 12.

[0105] In this embodiment, the heating part 12b can be a mounting cavity for inserting a heating element, a heating cavity for filling with a heating medium, or a heating channel for introducing a heating medium. Specifically, the heating element can be a heating wire, a heating tube, or a heating plate, and the heating medium can be a high-temperature liquid and / or a high-temperature gas, such as a high-temperature liquid, steam, or vapor.

[0106] As an optional implementation, the heating unit 12b can be a heating channel for introducing the heating medium. As described above, the heating medium is a high-temperature liquid and / or a high-temperature gas. Therefore, to achieve the delivery of the heating medium, a first cavity 11a for introducing the heating medium is provided on the fixed plate 11 connected to the intercepting fan blade 12. The first cavity 11a is connected to each of the intercepting fan blades 12 equipped with the heating channel, thereby delivering the heating medium to each of the intercepting fan blades 12. Specifically, the heating channel can be a through hole provided in the intercepting fan blade 12. The heating medium flows from the first cavity 11a to the heating channel and then escapes from the heating channel. During the flow of the heating medium through the heating channel of the intercepting fan blade 12, it conducts its own heat to the intercepting fan blade 12, causing the intercepting fan blade 12 to heat up. This prevents the grease and / or solid mixture in the oil fume from condensing on the intercepting fan blade 12, thus achieving an anti-oil-sticking effect.

[0107] As another optional implementation, the heating unit 12b is a heating chamber for filling with a heating medium. As mentioned above, the heating medium is a high-temperature liquid and / or a high-temperature gas. Therefore, in order to realize the delivery of the heating medium, a first cavity 11a for introducing the heating medium is provided on the fixed plate 11 connected to the intercepting fan blade 12. The first cavity 11a is connected to each intercepting fan blade 12 with the heating cavity, thereby realizing the delivery of the heating medium to each intercepting fan blade 12. Specifically, the heating cavity can be a blind hole provided in the intercepting fan blade 12. After the heating medium flows from the first cavity 11a into the heating cavity, it stays in the heating cavity, thereby allowing the heating medium to conduct its own heat to the intercepting fan blade 12. Since the heating cavity is a blind hole, the heat loss is small, thereby better ensuring the temperature of the intercepting fan blade 12, so that the grease and / or solid mixture in the oil fume airflow will not condense on the intercepting fan blade 12, thereby achieving the effect of preventing oil sticking.

[0108] As another optional implementation, the heating part 12b is a mounting cavity for inserting a heating element. As described above, the heating element can be a heating wire, a heating tube, or a heating plate. Therefore, to achieve energized heating of the heating element, a first cavity 11a for supplying power to the heating element is provided on the fixing plate 11. The first cavity 11a is connected to each intercepting fan blade 12 with the mounting cavity. Specifically, the mounting cavity can be a through hole or a blind hole. A circuit board can be installed in the first cavity 11a to introduce external electricity into the heating element in each intercepting fan blade 12, thereby heating the intercepting fan blade 12 and preventing grease and / or solid mixtures in the fumes from condensing on the intercepting fan blade 12, thus achieving an anti-grease-sticking effect.

[0109] Therefore, regardless of whether a heating element or a heating medium is used, since the heating part 12b is always a heating cavity or a heating channel, when heating the intercepting fan blade 12 with a heating element or a heating medium, it adopts an internal heating method. This method can not only reduce heat loss, but also has higher heating efficiency and is more environmentally friendly and efficient.

[0110] Furthermore, traditional cleaning methods for the separator 1 typically involve disassembling it and cleaning it separately, or spraying high-temperature steam or liquid onto the outside of the separator 1. However, both of these methods have limitations. Disassembling the separator 1 before cleaning increases the cleaning steps, making disassembly and assembly cumbersome. Moreover, due to the large number of interceptor blades 12 and the small gap 12a between adjacent blades, cleaning is difficult, time-consuming, and labor-intensive, often resulting in incomplete cleaning of hard-to-reach areas and unsatisfactory cleaning results. Spraying high-temperature liquid directly onto the outside of the separator 1 requires a large amount of liquid, and similarly, it misses some hard-to-reach areas of the interceptor blades 12, wasting liquid and yielding unsatisfactory cleaning results.

[0111] In this patent, a heating section 12b is provided in the intercepting fan blade 12. The heating section 12b is used to house the heating element and / or to introduce the heating medium. Compared with the traditional separation disc 1, since the heating medium and / or heating element are located in the heating section 12b of the intercepting fan blade 12, the heating of the intercepting fan blade 12 is all-round. As can be seen from the phenomenon that oil droplets condense under low temperature, as long as the intercepting fan blade 12 maintains a certain heating temperature, the oil droplets will not condense and adhere to the intercepting fan blade 12 when passing through it. This means that there is basically no grease adhering to the surface of the intercepting fan blade 12. Therefore, there is no need to clean it, achieving true cleaning-free operation.

[0112] Furthermore, since the heating medium and heating element of this patent do not come into direct contact with the external environment, the heat loss is small when heating the intercepting fan blade 12, and the intercepting fan blade 12 can be heated quickly, making it more energy-efficient and effective.

[0113] Furthermore, the heating part 12b of this patent is disposed in the intercepting fan blade 12. During the process of intercepting and separating the oil fume airflow by the intercepting fan blade 12, the heating part 12b can be continuously supplied with the heating medium or keep the heating element powered on. This can solve the problem of grease adhesion during the oil fume separation process. It does not affect the oil fume separation and interception of the intercepting fan blade 12, and there is no need to wait for the grease separation to be completed before the heating medium can be supplied or the heating element can be turned on. Therefore, the anti-oil sticking design is more efficient, and the cook does not need to set aside extra time to control the heating element or the supply of heating medium. The operation is more convenient and simple.

[0114] It is understandable that, in order to further improve the anti-oil-sticking effect of the fan blade 12, the heating medium can be introduced or the heating element can be turned on before cooking begins, and then after cooking is finished, the heating medium can continue to be introduced or the heating element can be turned on for a period of time, such as 1 minute, 2 minutes, 3 minutes, etc.

[0115] In this embodiment of the invention, the heating part 12b is a heating channel provided on the intercepting fan blade 12, and the heating medium is steam, as an example for explanation.

[0116] Combination Figures 5 to 9 As shown, in order to deliver the heating medium to the heating channel of the intercepting fan blade 12, a root portion 12c is provided at one end of the intercepting fan blade 12, which is used to fix it to the fixed plate 11. For the intercepting fan blade 12 with the heating channel, the root portion 12c of the intercepting fan blade 12 has a connecting portion 120 that communicates with the heating part 12b, and the connecting portion 120 communicates with the first cavity 11a, so that the first cavity 11a, the connecting portion 120 and the heating part 12b together form a first channel for the heating medium to enter. That is to say, when the heating medium is introduced into the heating channel of the intercepting fan blade 12, it is mainly done by inputting the heating medium into the first cavity 11a of the fixed plate 11, delivering the heating medium to the connecting portion 120 through the first cavity 11a, and then finally delivering it into the heating channel through the connecting portion 120. This method of introducing the heating medium is mainly because:

[0117] As described above, the intercepting fan blade 12 is a flat, elongated blade, and there are a large number of intercepting fan blades 12 on the separation disc 1. The heating channel is located on the intercepting fan blade 12. In this case, if the heating medium (taking steam as an example) is not introduced through the first cavity 11a of the fixed disc 11, but instead directly aligned with the intercepting fan blade 12 on the separation disc 1 through an external steam pipe, taking 100 intercepting fan blades 12 with the heating channel as an example, the steam pipe would need to branch into 100 small pipes directly connected to each intercepting fan blade 12. The pipe connection would be very complex, and this would increase the weight of the entire separation disc 1. In addition, since the intercepting fan blade 12 needs to rotate at high speed when intercepting the oil fume airflow, in order to ensure that the pipe can be aligned with the heating channel of the intercepting fan blade 12, the pipe would rotate under the drive of the intercepting fan blade 12, which is a very impractical design. In addition, even if the pipe does not rotate under the drive of the intercepting fan blade 12, since the pipe needs to transport the heating medium to the corresponding intercepting fan blade 12, if the intercepting fan blade 12 is rotating at high speed, the pipe cannot be aligned with the heating channel of the intercepting fan blade 12. Therefore, even if the intercepting fan blade 12 needs to be heated, it can only be done after the intercepting fan blade 12 has stopped rotating.

[0118] Therefore, in this patent, the heating medium is delivered to the first cavity 11a of the fixed plate 11. Through the connection between the first cavity 11a and the connecting part 120, the heating medium can be delivered to the heating channel of the intercepting fan blade 12. Since the intercepting fan blade 12 rotates at high speed under the drive of the fixed plate 11, the heating medium can still be introduced to heat the intercepting fan blade 12 even during the high-speed operation of the intercepting fan blade 12. This does not affect the oil fume separation of the intercepting fan blade 12, and at the same time, it can prevent grease from adhering to the intercepting fan blade 12.

[0119] Furthermore, to ensure the intercepting fan blade 12 can be fixed to the fixing plate 11, the fixing plate 11 is also provided with a circumferential groove 11b and an annular groove 11c. The circumferential groove 11b is arranged along the circumference of the fixing plate 11 and opens outward. The annular groove 11c is located in the fixing plate 11 and communicates with the circumferential groove 11b. The angle between the opening direction of the circumferential groove 11b and the opening direction of the annular groove 11c is a right angle, an obtuse angle, or an acute angle. The root portion 12c is inserted into the circumferential groove 11b, and the end face of the root portion 12c surrounds the annular groove 11c and together with the bottom surface of the annular groove 11c, forms the first cavity 11a. In other words, the first cavity 11a is formed by the annular groove 11c in the fixing groove and the end face of the root portion 12c. By adopting this forming method, the connecting part 120 of the root 12c can be directly connected to the first cavity 11a, thereby realizing the direct delivery of the heating medium to the connecting part 120, and then to the heating channel of the intercepting fan blade 12.

[0120] Specifically, the fixed disk 11 can be circular or cylindrical. The center of the circumferential groove 11b is the center of the fixed disk 11, and the center of the annular groove 11c is also the center of the fixed disk 11.

[0121] Furthermore, the fixing plate 11 includes an upper fixing plate portion 11d and a lower fixing plate portion 11e. The upper fixing plate portion 11d and the lower fixing plate portion 11e are connected and a circumferential groove 11b is formed at the connection between the upper fixing plate portion 11d and the lower fixing plate portion 11e. A first protrusion 111 is provided on the bottom surface of the annular groove 11c. The end face of the root portion 12c surrounds the outer periphery of the first protrusion 111 and together with the upper surface of the first protrusion 111 and the lower surface of the upper fixing plate portion 11d, forms the first cavity 11a. Specifically, the upper fixing plate portion 11d is a circular disc structure, and the lower fixing plate portion 11e is also a circular disc structure. The diameter of the upper fixing plate portion 11d is equal to the diameter of the lower fixing plate portion 11e. When the upper fixing plate portion 11d and the lower fixing plate portion 11e are mated and installed, the center of the upper fixing plate portion 11d and the center of the lower fixing plate portion 11e are collinear.

[0122] Furthermore, the first protrusion 111 is a circular protrusion, which is disposed on the bottom surface of the annular groove 11c. It should be noted that the upper surface of the first protrusion 111 should be higher than the upper surface of the annular groove 11c. This is so that when the upper fixed plate portion 11d and the lower fixed plate portion 11e are connected, the circumferential groove 11b can be formed between the upper fixed plate portion 11d and the lower fixed plate portion 11e. In other words, the circumferential groove 11b is not formed by directly opening it on the fixed plate 11, but by the connection between the first protrusion 111 and the upper fixed plate 11.

[0123] Specifically, since there are a large number of intercepting blades 12, in order to ensure that the circumferential groove 11b can accommodate the insertion of so many root portions 12c, a second protrusion 112 can also be provided on the lower surface of the upper fixed plate portion 11d. The second protrusion 112 is precisely engaged with the first protrusion 111. Thus, when the lower fixed plate portion 11e and the upper fixed plate portion 11d are engaged, since the upper surface of the first protrusion 111 is higher than the upper surface of the annular groove 11c, and the lower surface of the second protrusion 112 is higher than the lower surface of the upper fixed plate portion 11d, the upper surface of the first protrusion 111 is higher than the upper surface of the annular groove 11c. Therefore, the circumferential groove 11b is formed precisely between the upper fixed plate portion 11d and the lower fixed plate portion 11e. When the root portion 12c is inserted into the circumferential groove 11b, the root portion 12c can simultaneously contact both the upper fixed plate portion 11d and the lower fixed plate portion 11e. When the upper fixed plate portion 11d and the lower fixed plate portion 11e are tightly connected, the root portion 12c provided in the circumferential groove 11b is also tightly secured in the circumferential groove 11b. Thus, there is no need for additional fastening design for the root portion 12c, and the fastening method is simpler and more reliable.

[0124] Furthermore, in order to securely connect the upper fixed plate portion 11d and the lower fixed plate portion 11e without affecting the formation of the first cavity 11a, and then fix them to the root 12c of the circumferential groove 11b, a plurality of first positioning components 111a can be provided on the first protrusion 111. These multiple first positioning components 111a can be arranged along the center of the first protrusion 111. Similarly, a plurality of second positioning components 112a are provided on the second protrusion 112 corresponding to the multiple first positioning components 111a. These multiple second positioning components 112a are fixed to the multiple first positioning components 111a by fasteners, thereby achieving a fixed connection between the upper fixed plate portion 11d and the lower fixed plate portion 11e. Specifically, the first positioning component 111a can be a positioning post, and the second positioning component 112a can be a positioning hole. Alternatively, the first positioning component 111a can be a positioning hole, and the second positioning component 112a can be a positioning post. The number of the first positioning component 111a and the second positioning component 112a can be three, four, five, or more, respectively. In this embodiment of the invention, six of each of the first positioning component 111a and the second positioning component 112a are used as an example. Preferably, the first positioning component 111a is a positioning post and the second positioning component 112a is a positioning hole. In addition, the fastener can be a bolt, rivet, etc. The positioning post and the positioning hole are connected by the bolt or rivet, thereby fixing the upper fixed plate part 11d and the lower fixed plate part 11e, and further fixing the root part 12c in the circumferential groove 11b.

[0125] In this embodiment, the root portion 12c includes an insertion portion 121 extending outward from one end of the intercepting fan blade 12 and a snap-fit ​​portion 122 extending downward from the insertion portion 121. That is, the snap-fit ​​portion 122 and the insertion portion 121 form an approximately L-shaped structure. The insertion portion 121 and the snap-fit ​​portion 122 are respectively used to install onto the fixing plate 11 of the fume separation disc 1, so that the intercepting fan blade 12 is fixed to the fixing plate 11. Specifically, the root portion 12c is a short strip-shaped piece, and the length ratio of the root portion 12c to the length of the intercepting fan blade 12 can be 1:10 to 1:15. Preferably, the length ratio of the root portion 12c to the length of the intercepting fan blade 12 can be 1:10, 1:11, 1:12, 1:13, 1:14, or 1:15, etc.

[0126] The length ratio between the root 12c and the intercepting blade 12 is limited to avoid an excessively large length ratio between the root 12c and the intercepting blade 12, which would result in insufficient connection strength between the root 12c and the intercepting blade 12, potentially causing breakage at the connection between the root 12c and the intercepting blade 12 during high-speed rotation.

[0127] Furthermore, when the root portion 12c is connected to the fixed disk 11, the insertion portion 121 can be inserted into the circumferential groove 11b, while the snap-fit ​​portion 122 can be snapped into the annular groove 11c. Specifically, the leaf root portion 12c can be wedge-shaped as a whole, for example, both the insertion portion 121 and the snap-fit ​​portion 122 can be wedge-shaped, or only the insertion portion 121 can be wedge-shaped, while the snap-fit ​​portion 122 does not necessarily have to be wedge-shaped.

[0128] In this embodiment, the leaf root 12c is preferably wedge-shaped.

[0129] The reason for adopting a flat wedge-shaped design for the insertion part 121 is that, when the intercepting fan blades 12 are installed on the fixed plate 11 of the oil fume separation disc 1, a large number of intercepting fan blades 12 are installed on the fixed plate 11 to ensure the oil fume separation effect. Since the intercepting fan blades 12 are radially distributed on the fixed plate 11, the insertion part 121 should preferably be wedge-shaped in order to ensure that the insertion parts 121 of adjacent intercepting fan blades 12 are tightly connected to the fixed plate 11. This not only facilitates the installation and connection of two adjacent intercepting fan blades 12, but also avoids the blade root 12c from breaking due to insufficient strength during high-speed rotation.

[0130] Specifically, the tilt angle of the insertion part 121 can be θ, where 1° ≤ θ ≤ 4°. For example, θ can be 1°, 1.5°, 2°, 2.5°, 3°, 3.5°, 4°, etc. This tilt angle cannot be too large. If it is too large, it will not be conducive to the fit of the roots 12c of the two adjacent intercepting blades 12, thus affecting the size of the gap 12a formed by the two adjacent intercepting blades 12. If the tilt angle is too small, the thickness of the end of the insertion part 121 will be small, which may lead to insufficient strength of the root 12c itself, and it may break during high-speed rotation. Therefore, the tilt angle should be kept approximately within the value of 1° ≤ θ ≤ 4°.

[0131] In this embodiment, since the intercepting fan blades 12 need to be installed on the fixed plate 11 during actual use, and in order to improve the oil fume separation efficiency, the number of intercepting fan blades 12 is relatively large. The insertion part 121 has an inclined surface. In order to further facilitate the close connection of two adjacent intercepting fan blades 12, a third protrusion can be provided on the inclined surface. The third protrusion is used to make the root 12c of the two adjacent intercepting fan blades 12 have a gap smaller than the minimum value of the gap 12a when they are connected. This gap can be filled with adhesive (not shown), so that the root 12c of the two adjacent intercepting fan blades 12 can be bonded together. Specifically, the third protrusion can be set at the center of the inclined surface, and the protrusion height of the third protrusion should be less than one-tenth to one-ninth of the thickness of the root 12c itself, so as to control the size of the gap formed between the root 12c of the two adjacent intercepting fan blades 12.

[0132] Limiting the size of this gap is primarily to prevent the gap 12a between two adjacent interceptor blades 12 from becoming too large, which would affect the oil fume separation effect. It also reduces the amount of adhesive used, thus avoiding waste. If the gap 12a is too small, there will be too little adhesive between the roots 12c of two adjacent gaps 12a, making it difficult for the adhesive to function properly and preventing the roots 12c of the two adjacent gaps 12a from being firmly bonded together.

[0133] In addition, by filling the gaps with adhesive, not only can the roots 12c of the two adjacent intercepting blades 12 be fixed, but the airtightness of the adhesive can also be used to prevent the fumes from being directly discharged from the roots 12c of the two adjacent intercepting blades 12. As a result, the fumes can only be discharged after being separated at the end of the intercepting blade 12 away from the roots 12c, which further improves the separation effect of the fumes.

[0134] Combination Figure 5 , Figure 6 , Figure 10 and Figure 11As shown, the cross-section of the intercepting blade 12 has one or more bends. Specifically, since the intercepting blade 12 is elongated, the cross-section is a cross-section perpendicular to the length of the intercepting blade 12. This cross-section can be any shape with bends, such as V-shaped, W-shaped, polygonal, N-shaped, or Z-shaped. For example, when the cross-section is V-shaped, it has a single bend; when the cross-section is W-shaped, it has three bends; when the cross-section is polygonal, such as parallelogram, rhombus, square, rectangle, pentagon, hexagon, octagon, etc., it has at least four bends; when the cross-section is Z-shaped, it has two bends, and similarly, when the cross-section is N-shaped, it also has two bends.

[0135] Preferably, the cross-section of the intercepting blade 12 is V-shaped, including a long strip-shaped first sub-blade 12d and a second sub-blade 12e connected to the first sub-blade 12d, wherein the first sub-blade 12d and / or the second sub-blade 12e are provided with the heating part 12b.

[0136] As an optional implementation, the first sub-blade 12d is provided with the heating part 12b, which can be provided inside the first sub-blade 12d or on the first sub-blade 12d.

[0137] As another optional implementation, the second sub-blade 12e is provided with the heating part 12b, which can be provided inside the second sub-blade 12e or on the second sub-blade 12e.

[0138] As another alternative implementation, the heating part 12b is provided on the first sub-blade 12d and the second sub-blade 12e respectively.

[0139] In another optional embodiment, the connection between the second sub-blade 12e and the first sub-blade 12d forms an intersection, and the heating part 12b can be disposed at this intersection, that is, the heating part 12b can be disposed at the connection between the first sub-blade 12d and the second sub-blade 12e. Specifically, since the cross-sectional shape of the intercepting blade 12 is V-shaped, and the first sub-blade 12d and the second sub-blade 12e are elongated, a long side of the first sub-blade 12d connects with a long side of the second sub-blade 12e to form an intersection, and the heating part 12b is disposed at this intersection. It can be understood that the heating part 12b can be disposed within the intersection or on the intersection.

[0140] As another optional implementation, a protrusion 123 may be provided on the intersection. The length extension direction of the protrusion 123 is the same as the length extension direction of the first sub-blade 12d. The protrusion 123 may be located on the inner side of the intercepting fan blade 12, and the heating part 12b may be located between the protrusion 123 and the intersection. Specifically, since the cross-section of the intercepting fan blade 12 is V-shaped, the concave side of the V-shape is the inner side of the intercepting fan blade 12, and the side opposite to the concave side of the V-shaped cross-section is the outer side of the intercepting fan blade 12. That is, the protrusion 123 is provided on the concave side of the V-shaped cross-section and on the intersection. In this way, since the heating element 12b is located at the intersection of the first sub-blade 12d and the second sub-blade 12e, the heating element 12b can simultaneously heat the first sub-blade 12d and the second sub-blade 12e. This replaces the design that would require increasing the thickness of the first sub-blade 12d and the second sub-blade 12e if the heating element 12b were located inside the first sub-blade 12d and the second sub-blade 12e, thus reducing the weight of the intercepting blade 12 itself.

[0141] The present invention will be described using the example of the heating part 12b being disposed between the protrusion 123 and the intersecting part.

[0142] In this embodiment, the protrusion 123 extends along the length direction of the intercepting blade 12, and the extension length of the protrusion 123 is equal to or unequal to the extension length of the intercepting blade 12.

[0143] As an optional implementation, the protrusion 123 extends along the length direction of the intercepting fan blade 12, and the length of the protrusion 123 is equal to the length of the intercepting fan blade 12. In this case, the heating part 12b disposed between the protrusion 123 and the intersecting part can be a through hole, that is, the heating part 12b is disposed through the length direction of the protrusion 123.

[0144] As another alternative implementation, the protrusion 123 extends along the length of the intercepting fan blade 12, and the length of the protrusion 123 is equal to the length of the intercepting fan blade 12. In this case, the heating part 12b disposed between the protrusion 123 and the intersection can be a blind hole, that is, the heating part 12b does not penetrate the protrusion 123.

[0145] In another optional implementation, the length of the protrusion 123 is not equal to the length of the intercepting fan blade 12, and the length of the protrusion 123 is less than the length of the intercepting fan blade 12. In this case, the heating part 12b disposed between the protrusion 123 and the intersecting part can be a through hole, that is, the heating part 12b passes through the protrusion 123.

[0146] In another alternative implementation, the length of the protrusion 123 is not equal to the length of the intercepting fan blade 12, and the length of the protrusion 123 is less than the length of the intercepting fan blade 12. In this case, the heating part 12b disposed between the protrusion 123 and the intersecting part can be a blind hole, that is, the heating part 12b does not penetrate the protrusion 123.

[0147] The present invention is illustrated in Embodiment 1 with the convex strip 123 being of the same length as the intercepting fan blade 12 and the heating part 12b being a through hole.

[0148] Furthermore, the outer boundary of the cross-section of the protrusion 123 along its length direction can be arc-shaped, wavy, polygonal, or a combination thereof. Specifically, the outer boundary of the cross-section of the protrusion 123 can be a convex and outward-facing boundary. For example, if the outer boundary of the cross-section of the protrusion 123 is arc-shaped, then the protrusion 123 is a cylindrical protrusion, an elliptical cylindrical protrusion, or a spherical protrusion. If the cross-section of the protrusion 123 is polygonal, such as a two-fold line, a three-fold line, or a four-fold line, then the aerodynamic structure can be a triangular pyramid, a square prism, a cuboid, etc.

[0149] Furthermore, the outer boundary of the cross-section of the protrusion 123 can be a combination of arc and wave, or a combination of arc and polygonal lines, or a combination of wave and polygonal lines, etc.

[0150] Furthermore, since the cross-section of the intercepting blade 12 is V-shaped, an angle is formed between the first sub-blade 12d and the second sub-blade 12e. This angle can be 30° to 150°. When the convex strip 123 is provided on the intersection, the center of the convex strip 123 can be on the bisector of the angle.

[0151] Furthermore, since the heating element 12b is disposed between the intersecting portion and the protrusion 123, the cross-sectional shape of the heating element 12b along its length direction can be one or any combination of a circle, an ellipse, a fan shape, or a polygon. That is to say, regardless of whether the heating element 12b is a through hole or a blind hole, the heating element 12b can be a circular hole, an elliptical hole, a fan-shaped hole, or a polygonal hole, etc.

[0152] Combined again Figure 1 , Figure 4 and Figure 5As shown, in this embodiment, the intercepting fan blade 12 has an axisymmetric structure, that is, the first sub-blade 12d and the second sub-blade 12e of the intercepting fan blade 12 are symmetrical about the bisector of the intercepting fan blade 12. Specifically, when the intercepting fan blade 12 is applied to the fume separation disc 1 and installed on the fixing plate, the bisectors of each intercepting fan blade 12 coincide. The purpose of limiting the bisectors of each intercepting fan blade 12 to coincide and the intercepting fan blade 12 to have an axisymmetric structure is to ensure that when the fume separation disc 1 rotates, the fume airflow only enters or exits through the gap 12a of the fume separation disc 1, and does not exit directly from the bottom and / or top of the fume separation disc 1, thereby ensuring that the fume airflow can be intercepted and separated within the gap 12a.

[0153] It can be understood that the degree of overlap of the angle bisectors of each intercepting fan blade 12 depends on the actual installation process and the machining accuracy of the intercepting fan blade 12. They often cannot be perfectly aligned, but as long as they are approximately aligned, the purpose of this invention can be achieved. That is, to achieve direct discharge of oil-free airflow above and / or below the oil fume separation disc 1.

[0154] Combination Figure 1 , Figure 2 and Figure 12 As shown, in this embodiment, the plurality of intercepting blades 12 are arranged in a ring around the center of the fixed disk 11, and along the height extension direction of the fixed disk 11, the plurality of intercepting blades 12 can be arranged in a single layer or multiple layers on the fixed disk 11. Specifically, as shown... Figure 1 As shown, Figure 1 The diagram shows the arrangement of the multiple intercepting blades 12 in a single layer on the fixed disk 11. Since the fixed disk 11 has a circular disc structure, the intercepting blades 12 are arranged in a ring along the center of the fixed disk 11. Figure 12 As shown, Figure 12 The diagram shows the multiple intercepting fan blades 12 arranged in two layers on the fixed plate 11. For example... Figure 12 As shown, along the height extension direction of the fixed disk 11, the intercepting fan blades 12 are designed in two layers, and there should be a gap between the two layers of intercepting fan blades 12 to avoid them contacting each other and affecting rotation during high-speed rotation. It is understood that in other embodiments, the number of layers of intercepting fan blades 12 on the fixed disk 11 may be three, four or more.

[0155] Furthermore, it can be understood that when the intercepting fan blade 12 is designed as a two-layer structure on the fixed plate 11, the orientation of the upper and lower intercepting fan blades 12 can be the same or opposite, for example, as Figure 12 As shown in part a, the upper and lower layers of intercepting fan blades 12 are placed in the same direction, that is, the first included angle α of the upper and lower layers of intercepting fan blades 12 faces the same direction; as Figure 12As shown in part b, the upper and lower intercepting blades 12 can also be placed in the same direction, that is, the first included angle α of the upper and lower intercepting blades 12 faces opposite directions.

[0156] See again Figures 1 to 4 In this embodiment, the power unit 2 includes a bracket 21 and a motor mechanism 22. The motor mechanism 22 is fixedly connected to the bracket 21 and to the fixed disk 11, and is used to drive the fixed disk 11 to rotate. Specifically, the bracket 21 may include an upper surface 21a and a lower surface that are disposed opposite to each other. The upper surface 21a is provided with a positioning hole that extends to the lower surface. The motor mechanism 22 includes a motor 22a with the rotating shaft 221 and an extension plate 22b that is arranged around the motor 22a. The motor 22a passes through the positioning hole from bottom to top, and the extension plate 22b is fixedly connected to the lower surface of the bracket 21. With this configuration, when the motor 22a is connected to the bracket 21, the motor 22a passes through the positioning hole from bottom to top, and the extension plate 22b is fixed to the lower surface of the bracket 21. In this way, when the motor 22a is being repaired, only the screws / bolts fixing the motor 22a to the bracket 21 need to be removed, so that the motor 22a can be disengaged from the positioning hole from top to bottom, thereby achieving quick disassembly and repair of the motor 22a without removing the bracket 21.

[0157] Furthermore, in order to introduce the heating medium into the first cavity 11a of the fixed disk 11, a second cavity 221a is provided on the rotating shaft 221, which is connected to the first cavity 11a. The second cavity 221a is used to introduce the heating medium into the first cavity 11a. That is, since the motor 22a drives the fixed disk 11 to rotate, the second cavity 221a is provided on the rotating shaft 221 and can be connected to the rotating shaft 221 through an external pipe, thereby realizing the direct delivery of the heating medium to the first cavity 11a via the rotating shaft 221. This arrangement not only does not increase the overall volume of the fume purifier, but also makes the delivery of the heating medium from the rotating shaft 221 more direct and efficient.

[0158] Furthermore, the second cavity 221a is provided with a plurality of first through holes 221b at the position where the rotating shaft 221 is connected to the fixed disk 11. The plurality of first through holes 221b are connected to the first cavity 11a and are used to transport the heating medium in the second cavity 221a to the first cavity 11a. Specifically, since the motor 22a is connected to the fixed disk 11 by the rotating shaft 221 passing through the shaft hole on the fixed disk 11, the plurality of first through holes 221b can be opened at the position corresponding to the first cavity 11a when the rotating shaft 221 of the motor 22a passes through the fixed disk 11. That is, the first through holes 221b can be opened approximately at the middle position of the rotating shaft 221 along the height direction. In practical applications, the pipe carrying the heating medium can be installed near the motor 22a, so that the pipe carrying the heating medium can deliver steam to the second cavity 221a of the rotating shaft 221 of the motor 22a, and deliver it to the first cavity 11a through the first through holes 221b, and then deliver the heating medium to the heating part 12b through the connecting part 120 of the root 12c, so that the heating medium reaches the intercepting fan blade 12 and realizes the heating of the intercepting fan blade 12.

[0159] It should be understood that since the rotating shaft 221 needs to transport the heating medium, the rotating shaft 221 is preferably a shaft with a hollow center. In order not to affect the service life of the motor 22a, the temperature of the heating medium should not be too high, and should be approximately no higher than the operating temperature of the motor 22a. For example, the temperature of the heating medium can be 40 to 70°C.

[0160] This patent uses the rotating shaft 221 of the motor 22a as the conveying channel for the heating medium, which enables the heating medium to be conveyed from the inside to the intercepting fan blade 12. Compared with the method of conveying directly to the separation plate 1 through the steam pipe or hot water pipe, the structure is simpler and can also achieve internal conveying heating, which is highly efficient, and does not affect the intercepting fan blade 12's interception and separation of oil fume airflow.

[0161] The following is a brief description of the process of introducing the heating medium (taking steam as an example) into the oil fume separator:

[0162] Before the motor 22a of the oil fume separator starts to separate oil fumes, steam is introduced into the second cavity 221a of the rotating shaft 221 of the motor 22a through a steam pipe, so that it is transported to the first cavity 11a through the first through hole 221b, and then transported to the connecting part 120 through the first cavity 11a, and then transported to the heating part 12b through the connecting part 120. After steam has been introduced for a period of time, the motor 22a is started to begin separating the cooking fumes. At this time, since the heating section 12b is filled with steam, the temperature of the first sub-blade 12d and the second sub-blade 12e rises. When the fumes pass through the first sub-blade 12d and the second sub-blade 12e, the grease will not adhere to the first sub-blade 12d and the second sub-blade 12e due to the large temperature difference. In this way, the first sub-blade 12d and the second sub-blade 12e can achieve the effect of separating the grease in the fumes, while preventing grease from adhering to the surface of the first sub-blade 12d and the second sub-blade 12e, thus achieving a true anti-grease effect.

[0163] In this embodiment, to collect the grease and / or solid mixture separated and thrown out by the separating disc 1, the fume purifier of the present invention further includes an oil receiving tray 3. The separating disc 1 is located inside the oil receiving tray 3, and the bracket 21 is connected to the oil receiving tray 3 so that the power unit 2 is located above the oil receiving tray 3. When the motor mechanism 22 is connected to the fixed plate 11, the rotating shaft 221 of the motor mechanism 22 is fixedly connected to the fixed plate 11, thereby driving the fixed plate 11 to rotate. Specifically, during connection, the separating disc 1 is located inside the oil receiving tray 3, and the rotating shaft 221 of the motor 22a extends downward from the positioning hole and into the oil receiving tray 3 to be fixedly connected to the fixed plate 11. In actual use, the oil receiving tray 3 is set above the stove and is used to allow oil fumes to pass through the oil receiving tray 3 into the separating disc 1 for oil fume separation. In order to achieve both allowing oil fumes to pass into the separating disc 1 and collecting the oil droplets or solid particles thrown out by the separating disc 1, the oil receiving tray 3 can be a circular disc structure adapted to the shape of the separating disc 1.

[0164] Furthermore, as described above, the intercepting fan blade 12 is provided with a heating part 12b, and the heating part 12b is a through hole. Since the separating plate 1 is located inside the oil receiving plate 3, when the heating medium is introduced into the heating part 12b, the heating medium can be thrown outward from the intercepting fan blade 12 and enter the oil receiving plate 3, so that the heating medium can also heat the oil receiving plate 3, and the oil receiving plate 3 can also achieve the effect of preventing oil sticking.

[0165] In this embodiment, when the separating disc 1 is located inside the oil receiving disc 3, there is a gap between the outer edge of the separating disc 1 (i.e., the end of the intercepting fan blade 12 away from the root 12c) and the inner sidewall of the oil receiving disc 3. When the separating disc 1 separates the fumes, the outer edge of the separating disc 1 can form a wind barrier to prevent the fumes from passing directly through this gap. Specifically, as described above, the intercepting fan blade 12 has an axisymmetric structure and is a V-shaped fan blade. Therefore, when the fumes arrive at the separating disc 1 through the oil receiving disc 3, the intercepting fan blade 12 rotates at high speed under the drive of the motor mechanism 22, forming a high-speed rotating vortex at the end of the intercepting fan blade 12. This prevents the fumes from passing directly through the gap between the end of the intercepting fan blade 12 and the oil receiving disc 3, thus forcing the fumes to enter only through the gap 12a formed between two adjacent intercepting fan blades 12, thereby achieving the separation of the fumes. Therefore, it can be understood that the wind barrier described in this invention actually refers to the vortex generated by the high-speed rotation of the ends of the intercepting blades 12 under the drive of the motor mechanism 22.

[0166] Furthermore, to allow oil fumes to rise from the oil receiving tray 3 to the separation tray 1 and enter the separation tray 1, the bottom of the oil receiving tray 3 is provided with an oil fume passage 3a for the oil fumes to rise and contact the separation tray 1. The edge of the oil fume passage 3a is provided with an annular plate 3b protruding towards the inside of the oil receiving tray 3. The annular plate 3b, the bottom wall of the oil receiving tray 3, and the inner side wall of the oil receiving tray 3 form an oil receiving space for receiving the solid-liquid mixture (i.e., a mixture of oil droplets and solid particles). Specifically, the oil fume passage 3a is located at the center of the bottom of the oil receiving tray 3, and the center of the oil fume passage 3a is collinear with the center of the oil receiving tray 3. The fume passage 3a is a circular hole with a diameter smaller than the outer diameter of the separation disk 1. That is, the projection of the fume passage 3a on the separation disk 1 is located inside the separation disk 1. This allows the fumes to enter the separation disk 1 through the fume passage 3a, while also ensuring that the diameter of the fume passage 3a is smaller than the separation disk 1 so that the grease and / or solid mixture thrown out through the outer edge of the separation disk 1 can fall into the oil receiving tray 3 instead of dripping into the fume passage 3a.

[0167] Preferably, the diameter of the fume passage 3a is approximately equal to one-third to one-half of the outer diameter of the separation disk 1, so that the fume can enter the separation disk 1 through the fume passage 3a, and at the same time, the grease and / or solid mixture separated and thrown out by the separation disk 1 can fall into the oil receiving space.

[0168] Furthermore, the annular plate 3b is integrally formed on the edge of the fume passage 3a, and the annular plate 3b protrudes towards the inside of the oil receiving tray 3. When the separating disc 1 is located inside the oil receiving tray 3, the plurality of intercepting fan blades 12 are spaced apart from the upper surface 21a of the annular plate 3b, and the end of the plurality of intercepting fan blades 12 away from the fixed disc 11 is located in the oil receiving space. Specifically, the annular plate 3b is mainly used to prevent the grease and / or solid mixture thrown out by the intercepting fan blades 12 from directly seeping or flying into the fume passage 3a through the bottom wall of the oil receiving tray 3, ensuring that the grease and / or solid mixture can only drip into the oil receiving space 31, so that the grease and / or solid mixture can be finally collected in the oil receiving space.

[0169] The fume purifier provided in Embodiment 1 of the present invention provides a second cavity 221a within the rotating shaft 221 of the motor mechanism 22, and a first cavity 11a communicating with the second cavity 221a within the fixed disk 11. A connecting part 120 communicating with the heating part 12b is then provided on the root 12c of the intercepting fan blade 12. This allows the second cavity 221a, the first cavity 11a, the connecting part 120, and the heating part 12b to jointly form a channel for conveying the heating medium, thereby enabling internal heating of the intercepting fan blade 12 and effectively preventing grease from cooling and adhering to the intercepting fan blade 12, thus making the intercepting fan blade 12 truly cleaning-free.

[0170] Furthermore, by adopting the above-mentioned method of forming a channel for conveying the heating medium, the overall structural design is simple and ingenious. There is no need to arrange additional pipes connected to the heating part 12b of the intercepting fan blade 12, which does not affect the oil fume separation of the intercepting fan blade 12 at all. At the same time, the oil fume separation and the heating of the intercepting fan blade 12 can be carried out simultaneously.

[0171] Example 2

[0172] Please see Figure 13 Embodiment 2 of the present invention discloses an oil fume purifier, which differs from the oil fume purifier in Embodiment 1 in that:

[0173] The protrusion 123 is provided at the non-intersecting portion of the first sub-blade 12d and / or the non-intersecting portion of the second sub-blade 12e. The heating part 12b is located between the non-intersecting portion of the first sub-blade 12d and the protrusion 123 and / or between the non-intersecting portion of the second sub-blade 12e and the protrusion 123. In this second embodiment, the heating part 12b is still used as the heating channel for description.

[0174] As a first alternative implementation (such as Figure 13 As shown in part a), the heating part 12b is located between the non-intersecting part of the first sub-blade 12d and the protrusion 123.

[0175] As a second alternative implementation (such as Figure 13As shown in part b), the heating part 12b is located between the non-intersecting part of the second sub-blade 12e and the protrusion 123.

[0176] As a third alternative implementation method (such as...) Figure 13 As shown in part c), the heating part 12b is provided between the non-intersecting part of the first sub-blade 12d and the protrusion 123, and between the non-intersecting part of the second sub-blade 12e and the protrusion 123, respectively.

[0177] In the third embodiment, a ridge 123 is provided on both the first sub-blade 12d and the second sub-blade 12e. Since there are two ridges 123, there are also two heating parts 12b, which makes the heating of the intercepting fan blade 12 more uniform.

[0178] Preferably, in the third embodiment, the protrusions 123 provided on the first sub-blade 12d and the second sub-blade 12e should have a certain gap 12a. Otherwise, if the gap 12a formed between the intercepting fan blades 12 is too small, it will reduce the ventilation volume and affect the interception and separation of the oil fume airflow by the intercepting fan blades 12.

[0179] It should be noted that in this embodiment, the structures of the heating part 12b, the first sub-blade 12d, the second sub-blade 12e, and the protrusion 123 are the same as those in Embodiment 1, and therefore will not be described again.

[0180] The fume purifier provided in this embodiment 2, by setting a heating part 12b on the first sub-blade 12d and / or the second sub-blade 12e, and setting a heating medium in the heating part 12b, can make the temperature of the intercepting fan blade 12 rise more evenly, thereby better achieving the effect of preventing oil sticking.

[0181] Example 3

[0182] Combination Figure 5 as well as Figure 14 As shown, Embodiment 3 of the present invention provides an oil fume purifier, which differs from the oil fume purifier of Embodiment 1 in that:

[0183] Not only is a ridge 123 provided on the intersecting portion, but a heating element 12b is also provided between the ridge 123 and the intersecting portion. Furthermore, ridges 123 are provided on the first sub-blade 12d and / or the second sub-blade 12e. Heating elements 12b are also provided between the first sub-blade 12d and the ridge 123, and / or between the second sub-blade 12e and the ridge 123. In this embodiment, the heating element 12b is used as the heating channel for explanation. The arrangement of the ridge 123 and the heating element 12b can be as follows:

[0184] As a first alternative implementation (such as Figure 14As shown in part a), not only is there a ridge 123 at the intersection, but there is also a ridge 123 at the position where the first sub-blade 12d does not intersect with the second sub-blade 12e. A heating part 12b is provided between the intersection and the ridge 123. At the same time, a heating part 12b is also provided between the non-intersecting part of the first sub-blade 12d and the ridge 123.

[0185] As a second alternative implementation (such as Figure 14 As shown in part b), not only is there a ridge 123 at the intersection, but there is also a ridge 123 at the position where the second sub-blade 12e does not intersect with the first sub-blade 12d. A heating part 12b is provided between the intersection and the ridge 123. At the same time, a heating part 12b is also provided between the non-intersecting position of the second sub-blade 12e and the ridge 123.

[0186] As a third alternative implementation method (such as...) Figure 14 As shown in part c), not only is there a ridge 123 at the intersection, but there is also a ridge 123 at the position where the first sub-blade 12d does not intersect with the second sub-blade 12e, and there is also a ridge 123 at the position where the second sub-blade 12e does not intersect with the first sub-blade 12d. A heating part 12b is provided between the intersection and the ridge 123. At the same time, a heating part 12b is also provided between the non-intersecting position of the first sub-blade 12d and the ridge 123, and a heating part 12b is also provided between the non-intersecting position of the second sub-blade 12e and the ridge 123.

[0187] Of course, it is understandable that although the ridge 123 is provided on the first sub-blade 12d and / or the second sub-blade 12e, it does not mean that a heating element 12b needs to be provided between the ridge 123 and the first sub-blade 12d and / or the second sub-blade 12e. That is, the number of heating elements 12b can be adjusted according to the actual situation. For example, since the intercepting blade 12 itself is a flat strip, its volume is small, so there is no need to provide multiple heating elements 12b, only one or two heating elements 12b are needed.

[0188] The fume purifier provided in this embodiment 3, by providing heating elements 12b at the intersection, the first sub-blade 12d, and the second sub-blade 12e, can make the temperature of the intercepting fan blade 12 rise more evenly, thereby achieving a better anti-oil-sticking effect.

[0189] Example 4

[0190] Combination Figure 5 as well as Figure 15 As shown, Embodiment 4 of the present invention provides an oil fume purifier, which differs from the oil fume purifier of Embodiment 1 in that:

[0191] The heating element 12b is located inside the intercepting fan blade 12, and the intercepting fan blade 12 does not have a protrusion 123. In this embodiment, the heating element 12b is also used as the heating channel for explanation.

[0192] In this embodiment, the heating element 12b is disposed inside the intercepting fan blade 12. Specifically, the arrangement of the heating element 12b inside the intercepting fan blade 12 can be roughly divided into the following situations:

[0193] As a first alternative implementation (such as Figure 15 As shown in part a), the heating part 12b is only provided in the intersecting part.

[0194] As a second alternative implementation (such as Figure 15 As shown in part b), the heating part 12b is only provided inside the first sub-blade 12d.

[0195] As a third alternative implementation method (such as...) Figure 15 As shown in part c), the heating part 12b is only provided in the second sub-blade 12e.

[0196] As a fourth optional implementation method (such as...) Figure 15 As shown in part d), the heating part 12b is provided in the intersection and in the position where the first sub-blade 12d does not intersect with the second sub-blade 12e.

[0197] As a fifth alternative implementation method (such as...) Figure 15 As shown in part e), the heating part 12b is provided in the intersection and in the position where the second sub-blade 12e does not intersect with the first sub-blade 12d.

[0198] As a sixth alternative implementation method (such as...) Figure 15 As shown in part f), the heating part 12b is not provided in the intersection, but is provided inside the first sub-blade 12d where it does not intersect with the second sub-blade 12e, and inside the second sub-blade 12e where it does not intersect with the first sub-blade 12d.

[0199] As a seventh alternative implementation method (such as...) Figure 15 As shown in part g), the heating part 12b is provided in the intersection, the interior of the first sub-blade 12d where it does not intersect with the second sub-blade 12e, and the interior of the second sub-blade 12e where it does not intersect with the first sub-blade 12d.

[0200] Among them, the above seven embodiments can be appropriately thickened on the basis of the conventional intercepting fan blade 12 to place solid heating media such as heating plates, heating wires, and heating tubes, or to allow sufficient passage space for the introduced high-temperature liquids, high-temperature gases, etc., so that the heating media can bring enough heat to heat the intercepting fan blade 12.

[0201] It is understandable that the number and position of the heating elements 12b have a certain impact on the heating speed and uniformity of the intercepting fan blade 12. In the seventh embodiment, three heating elements 12b are spaced apart on the intercepting fan blade 12, which can quickly and evenly heat the intercepting fan blade 12, thereby making the anti-oil sticking effect of the intercepting fan blade 12 better.

[0202] The fume purifier provided in this embodiment 4 has a heating element 12b inside the intercepting fan blade 12. This arrangement allows the heating medium inside the heating element 12b to quickly heat the intercepting fan blade 12, raising its temperature. As a result, the grease and / or solid mixture in the fume will not condense on the intercepting fan blade 12, thus achieving the effect of preventing oil sticking.

[0203] Example 5

[0204] Combination Figure 5 as well as Figure 16 As shown, Embodiment 5 of the present invention provides an oil fume separator, which differs from the oil fume separator of Embodiment 1 of the present invention in that:

[0205] The heating element 12b is located inside the intercepting fan blade 12, and at the same time, the protrusion 123 is provided on the intercepting fan blade 12.

[0206] Specifically, the protrusion 123 can extend the path of the grease and / or solid mixture in the fume airflow through the separation disc 1. When the grease and / or solid mixture in the fume airflow passes through the intercepting fan blade 12 area of ​​the separation disc 1, it will collide with the protrusion 123, and the grease and / or solid mixture in the fume airflow will be stuck below the protrusion 123. Thus, the grease and / or solid mixture in the fume airflow cannot continue to rise and separate from the fume. When the grease and / or solid mixture is stuck by the protrusion 123, it is constantly subjected to centrifugal force, so the grease and / or solid mixture will leave the separation disc 1 radially in the direction of centrifugal force, thereby improving the separation rate of grease and / or solid mixture in the fume.

[0207] Preferably, the protrusion 123 can be disposed at the intersection of the intercepting fan blade 12. The arrangement of the heating element 12b within the intercepting fan blade 12 can be found in the description of Embodiment 4, and will not be repeated here.

[0208] The fume purifier provided in this embodiment, because the heating unit 12b is located inside the intercepting fan blade 12, does not occupy the space of the gap 12a formed between two adjacent intercepting fan blades 12, thus achieving an anti-oil adhesion effect while maintaining a large overall ventilation volume. Furthermore, the protrusions 123 on the intercepting fan blade 12 intercept grease and / or solid mixtures during the separation process, thereby effectively improving the separation rate as most of the grease and / or solid mixtures can be separated from the fume.

[0209] Example 6

[0210] Please refer to the following: Figure 1 , Figures 17 to 21 Embodiment 6 of the present invention discloses an oil fume purifier, which differs from the oil fume purifier of Embodiment 1 of the present invention in that:

[0211] All or part of the intercepting fan blades 12 are provided with a turbulence structure for creating turbulence when the oil fume airflow passes through the gap 12a.

[0212] As can be seen from Example 1, the intercepting fan blade 12 is mainly used to intercept and separate grease and / or solid mixtures in oil fumes. Therefore, in this patent, because there is a turbulence structure 12f on the intercepting fan blade 12, when the oil fume airflow passes through the gap 12a of the intercepting fan blade 12 of the separation disk 1, the oil fume airflow will be more turbulent than that of a fan blade without a turbulence structure 12f, thus forming or aggravating turbulence / vortex. This increases the probability of contact between grease, particulate matter, etc. in the oil fume and the intercepting fan blade 12 and to a certain extent increases the time for the oil fume airflow to pass through the separation disk 1. This reduces the probability that grease, particulate matter, etc. in the oil fume will pass directly through the gap 12a of the intercepting fan blade 12 without being intercepted, thereby improving the ability of the intercepting fan blade 12 to collide with and adsorb grease and particulate matter in the oil fume, and maximizing the oil fume separation effect. The turbulence structure 12f on the intercepting fan blade 12 can be one or more minimum turbulence structure 12f units with turbulence effect. Moreover, the turbulence structure 12f can be set at any position on the intercepting fan blade 12 and can adopt any structure, such as being set on the side, top or bottom surface of the intercepting fan blade 12. Any possible structure that can generate a stronger turbulence effect when the oil fume airflow passes through the gap 12a of the intercepting fan blade 12 is within the protection scope of this patent.

[0213] In the prior art, the fan blades of fluid equipment are made as flat as possible so that working media such as gas and liquid can pass through the fan blades in the shortest time rather than prolonging the time it takes to pass through the fan blades. Some fluid machinery even has strict limits on the surface roughness of the fan blades to ensure that gas and liquid can pass through the fan blades quickly. Therefore, setting a turbulence structure 12f on the surface of the fan blade to increase the probability of contact between the oil fume airflow and the intercepting fan blade 12 and prolong the time it takes to pass through the fan blade is not only not common knowledge in the field, but also a technical means that violates common knowledge in the field.

[0214] It should be understood that the turbulence structure 12f of the present invention refers to a structure provided on the intercepting fan blade 12 that enables the oil fumes to form turbulence on the intercepting fan blade 12 when the oil fumes pass through the intercepting fan blade 12. For example, it can be a protrusion such as a ridge 123, a protrusion, or a protrusion column provided on the intercepting fan blade 12, or a recessed structure such as a pit or groove provided on the intercepting fan blade 12.

[0215] Furthermore, for the intercepting fan blade 12 equipped with the heating part 12b, a turbulence structure 12f may or may not be provided thereon. Specifically, taking the intercepting fan blade 12 equipped with the heating part 12b as an example, a turbulence structure 12f may be provided thereon.

[0216] As shown in Embodiment 1, the cross-section of the intercepting blade 12 may have one or more bends, and one side of the cross-section is the inner side of the intercepting blade 12, and the other side of the cross-section is the outer side of the intercepting blade 12. One or more turbulence structures 12f are provided on the outer side of the intercepting blade 12, and / or one or more turbulence structures 12f are provided on the inner side of the cross-section of the intercepting blade 12. Specifically, the turbulence structure 12f can be provided on the inner side of the cross-section of the intercepting blade 12, or on the outer side of the cross-section of the intercepting blade 12, or the turbulence structure 12f can be provided on both the inner and outer sides of the cross-section of the intercepting blade 12.

[0217] Furthermore, since the cross-section of the intercepting blade 12 is V-shaped and the protrusion 123 is provided on the inner side of the intercepting blade 12, the turbulence-disrupting structure 12f is preferably provided on the outer side of the intercepting blade 12. Specifically, the intersecting portion may include a first intersecting portion 124 located on the outer side of the intercepting blade 12 and a second intersecting portion 125 located on the inner side of the intercepting blade 12. The turbulence-disrupting structure 12f may be provided on the first intersecting portion 124, and the protrusion 123 may be provided on the second intersecting portion 125. That is, the heating portion 12b may be provided between the second intersecting portion 125 and the protrusion 123.

[0218] By adopting this configuration, the turbulence structure 12f is set on the first intersecting part 124, which can improve the oil fume separation rate of the intercepting fan blade 12. Then, the protrusion 123 is set on the second intersecting part 125, and the heating medium in the heating part 12b between the protrusion 123 and the second intersecting part 125 is used to heat the intercepting fan blade 12. This makes the oil fume interception and anti-oil sticking design of the intercepting fan blade 12 independent of each other. Thus, the anti-oil sticking design of the intercepting fan blade 12 can be completed without affecting the oil fume interception and separation of the intercepting fan blade 12.

[0219] Furthermore, the turbulence structure 12f can be integrally formed on the first intersecting portion 124, thereby simplifying the processing steps of the intercepting fan blade 12 and improving processing efficiency. At the same time, the integral forming method can also avoid the possibility of gaps or additional components that may occur when the turbulence structure 12f is designed in parts, which would cause oil droplets to accumulate on the gaps or additional components, making it difficult to clean the intercepting fan blade 12.

[0220] Combination Figures 17 to 21 As shown, in this embodiment, since the intercepting fan blade 12 is a long strip-shaped component, its two ends are a first end 121a and a second end 121b, respectively. The first end 121a and the second end 121b are the two ends along the length direction of the intercepting fan blade 12. The turbulence-disrupting structure 12f can be a long strip-shaped protrusion, a groove, or a combination of both. The turbulence-disrupting structure 12f extends from the first end 121a to the second end 121b, or the length direction of the turbulence-disrupting structure 12f extends along the length direction of the intercepting fan blade 12, and the length of the turbulence-disrupting structure 12f is less than the length of the intercepting fan blade 12. Specifically, when the intercepting fan blade 12 is applied to the fume separation disc 1 and installed on the fixing disc 11 of the fume separation disc 1, the first end 121a of the intercepting fan blade 12 is preferably the end closer to the center of the fume separation disc 1, while the second end 121b of the intercepting fan blade 12 is the end relatively farther away from the center of the fume separation disc 1.

[0221] As an optional implementation, the turbulence-disrupting structure 12f is an elongated protrusion that extends from the first end 121a to the second end 121b, meaning the turbulence-disrupting structure 12f is the same length as the intercepting fan blade 12. Thus, when the intercepting fan blade 12 is used to intercept the oil fume airflow, the entire intersection of the intercepting fan blades 12 can generate turbulence due to the action of the turbulence-disrupting structure 12f, enhancing the turbulence effect.

[0222] As another alternative implementation, the spoiler structure 12f is also an elongated protrusion, but its length is less than that of the intercepting blade 12. For example, the protrusion may be located only near the first end 121a of the intercepting blade 12, or from the first end 121a to approximately the middle, or only near the second end 121b, or from the second end 121b to approximately the middle, and so on. This approach is adopted primarily because: when the intercepting fan blades 12 are applied to the oil fume separation disc 1 for oil fume interception, there are a large number of intercepting fan blades 12. When multiple intercepting fan blades 12 are installed, the second end 121b of the intercepting fan blade 12 usually comes into contact with the oil fume airflow first, while the first end 121a comes into contact with less oil fume airflow. Therefore, if the elongated protrusion is set near the second end 121b, or set from the second end 121b to approximately the middle, the oil fume airflow will generate turbulence when passing through these positions, slowing down the speed of the oil fume airflow through these positions, thereby allowing as much grease and particles as possible to be separated.

[0223] Similarly, if the turbulence structure 12f is a long groove, its arrangement on the intercepting fan blade 12 can be the same as the long protrusion described above, so it will not be described again.

[0224] Similarly, if the turbulence structure 12f is a combination of elongated protrusions and grooves, for example, part of it is set as a protrusion and part of it is set as a groove, then its setting method can be the same as the above-mentioned setting of elongated protrusions, which will not be repeated here.

[0225] Furthermore, when the disturbance structure 12f is an elongated protrusion, the height of the elongated protrusion near the first end 121a is less than or equal to the height of the elongated protrusion near the second end 121b. Specifically, if the height of the elongated protrusion near the first end 121a is equal to its height near the second end 121b, it indicates that the height of the elongated protrusion is uniformly set. If the height of the elongated protrusion near the first end 121a is less than its height near the second end 121b, it indicates that the height of the elongated protrusion can gradually increase from the first end 121a to the second end 121b, or that the height of the elongated protrusion near the first end 121a is relatively small, the height of the elongated protrusion near the middle is relatively large, and the height of the protrusion near the second end 121b is also relatively small, but it should be ensured that the height of the protrusion near the second end 121b is greater than the height of the protrusion near the first end 121a. This design is adopted primarily because: when the intercepting fan blades 12 are used in the oil fume separation disc 1 for oil fume interception, there are a large number of intercepting fan blades 12, and a gap 12a must be formed between adjacent intercepting fan blades 12 to allow the oil fume airflow to pass through. This ensures that the oil fume airflow can contact the intercepting fan blades 12 and the turbulence structure 12f on the intercepting fan blades 12. Since this gap 12a gradually increases from the first end 121a to the second end 121b, if the height of the elongated protrusion at the first end 121a is too high, the gap 12a between adjacent intercepting fan blades 12 at the first end 121a may be too small, which is not conducive to the installation of adjacent intercepting fan blades 12. Furthermore, as mentioned above, when the oil fume airflow enters the gap 12a, it first contacts the second end 121b and the middle position. Therefore, the height of the elongated protrusion at the second end 121b and the middle position can be slightly larger than the height of the protrusion at the first end 121a. This not only reduces the width of the gap 12a, preventing the oil fume airflow from passing through the gap 12a all at once, but also slows down the speed of the oil fume airflow through these positions as much as possible, thereby improving the oil fume separation effect.

[0226] Similarly, when the turbulence structure 12f is an elongated groove, the depth of the elongated groove near the first end 121a is less than or equal to the depth of the elongated groove near the second end 121b. Specifically, the depth of the elongated groove near the first end 121a is less than the depth of the elongated groove near the second end 121b. This is because when the intercepting fan blade 12 is applied to the fume separation disc 1 for fume interception, it is mainly done by installing the first end 121a of the intercepting fan blade 12 to the fume separation disc 1. If the depth of the elongated groove near the first end 121a is large, it is easy to cause insufficient structural strength of the intercepting fan blade 12 at the first end 121a. In this case, the intercepting fan blade 12 may break during high-speed rotation. Therefore, it is preferable that the depth of the elongated groove near the second end 121b is greater than the depth near the first end 121a.

[0227] In this embodiment, when the turbulence structure 12f is a protrusion, a recess, or a combination of both, the intercepting fan blade 12 may have multiple turbulence structures 12f, which are arranged from the first end 121a to the second end 121b. Specifically, among the multiple turbulence structures 12f, the distance between two adjacent turbulence structures 12f near the first end 121a is greater than the distance between two adjacent turbulence structures 12f near the second end 121b.

[0228] Taking a protruding pillar as an example, among these multiple protruding pillars, the distance between two adjacent protruding pillars near the first end 121a can be greater than the distance between two adjacent protruding pillars near the second end 121b. This arrangement can be roughly as follows: the multiple protruding pillars are arranged from sparse to dense from the first end 121a to the second end 121b, or the multiple protruding pillars can be arranged sparsely from the first end 121a towards the middle, then evenly in the middle, and finally densely in the middle towards the second end 121b, and so on. In other words, when multiple protruding pillars are used, there can be multiple ways of uneven arrangement, and these multiple arrangement methods can be adjusted and set according to the actual situation.

[0229] The above arrangement is adopted mainly because: when the intercepting fan blade 12 is applied to the oil fume separation disc 1 for oil fume interception, the oil fume airflow first contacts the second end 121b and the middle position. Therefore, the arrangement of the protruding pillars at the second end 121b and the middle position can be slightly denser than that at the first end 121a, which can slow down the speed of the oil fume airflow through the second end 121b and the middle position as much as possible, thereby improving the oil fume separation effect.

[0230] Similarly, when the turbulence structure 12f is a concave pit, its setting method can be the same as that of the convex pillar, so it will not be described again.

[0231] In this embodiment, the outer boundary of the cross-section of the disturbance structure 12f along its length direction can be arc-shaped, wavy, polygonal, or a combination thereof. Specifically, if the disturbance structure 12f is a protrusion or a convex pillar, then the outer boundary of the cross-section of the disturbance structure 12f is a protruding and outward-facing boundary. If the disturbance structure 12f is a groove or a recess, then the outer boundary of the disturbance structure 12f is an inward-recessed boundary. Specifically, the outer boundary of the cross-section of the disturbance structure 12f can be arc-shaped, that is, the disturbance structure 12f can be a cylinder, an elliptical cylinder, or a sphere; if the cross-section of the disturbance structure 12f is polygonal, such as a two-fold line, a three-fold line, or a four-fold line, then the disturbance structure 12f can be a triangular pyramid, a square prism, a cuboid, etc.

[0232] Furthermore, the outer boundary of the cross-section of the turbulence structure 12f can be a combination of arc and wave, or a combination of arc and broken line, or a combination of wave and broken line, etc.

[0233] The fume purifier provided in Embodiment 6 of the present invention, by setting the turbulence structure 12f on the first intersecting part 124 of the intercepting fan blade 12, causes the fume to continuously rotate at the position of passing the turbulence structure 12f and form turbulence, thereby accumulating a large amount of fume, increasing the probability of collision of fume at the turbulence structure 12f, thereby allowing more oil droplets to be separated and the separation effect to be better.

[0234] The above provides a detailed description of an oil fume purifier disclosed in the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the core idea of ​​an oil fume purifier of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An oil fume purifier, characterized in that, include A separation disc includes a fixed disc and multiple elongated fume intercepting blades. The multiple intercepting blades are radially distributed and fixed to the fixed disc. A gap is formed between two adjacent intercepting blades to allow the flow of fume. All or part of the intercepting blades are directly provided with one or more heating parts for heating the intercepting blades. The heating parts are used to fill or introduce a heating medium. One end of each intercepting blade is provided with a root for being fixed to the fixed disc. For intercepting blades with heating parts, the root of the intercepting blade is provided with a connecting part that communicates with the heating part. The fixed disc is provided with a first cavity, which is connected to each of the heating parts through the connecting part. as well as A power unit is fixedly connected to the fixed plate and is used to provide power for the fixed plate to drive the plurality of intercepting fan blades to rotate, so that the plurality of intercepting fan blades intercept and separate grease and / or solid mixtures in the oil fume airflow. The power unit includes a power mechanism and a bracket. The power mechanism is fixedly installed on the bracket, and the rotating shaft of the power mechanism is fixedly connected to the fixed plate. A second cavity is provided on the rotating shaft of the power mechanism and communicates with the first cavity. The second cavity is used to introduce the heating medium into the first cavity. The second cavity has a plurality of first through holes at the position where the rotating shaft is connected to the fixed disk. The first through holes are connected to the first cavity and are used to transport the heating medium in the second cavity to the first cavity.

2. The fume purifier according to claim 1, characterized in that: The heating element extends along the length of the intercepting fan blade where it is located, and the heating element may be the same length or different length from the intercepting fan blade where it is located.

3. The fume purifier according to claim 1, characterized in that, The first cavity, the connecting portion, and the heating portion together form a first channel for introducing the heating medium.

4. The oil fume purifier according to any one of claims 1 to 3, characterized in that, The fixed disk is also provided with a circumferential groove and an annular groove. The circumferential groove is arranged along the circumference of the fixed disk and opens outward. The annular groove is arranged in the fixed disk and communicates with the circumferential groove. The angle between the opening direction of the circumferential groove and the opening direction of the annular groove is a right angle, an obtuse angle, or an acute angle. The root is inserted into the circumferential groove, and the end face of the root surrounds the annular groove and together with the bottom surface of the annular groove forms the first cavity.

5. The oil fume purifier according to claim 4, characterized in that, The fixed plate includes an upper fixed plate portion and a lower fixed plate portion. The upper fixed plate portion and the lower fixed plate portion are connected and the circumferential groove is formed at the connection between the upper fixed plate portion and the lower fixed plate portion. The bottom surface of the annular groove is provided with a first protrusion, and the end face of the root surrounds the outer periphery of the first protrusion and together with the upper surface of the first protrusion and the lower surface of the upper fixed plate portion, forms the first cavity.

6. The oil fume purifier according to claim 5, characterized in that, The upper fixed plate portion has a second protrusion on one side facing the lower fixed plate portion. The second protrusion is connected to the first protrusion to form the circumferential groove between the upper fixed plate portion and the lower fixed plate portion.

7. The oil fume purifier according to claim 6, characterized in that, The first protrusion is provided with a plurality of first positioning components, which are arranged along the center of the first protrusion. The second protrusion is provided with a plurality of second positioning components corresponding to the plurality of first positioning components. The plurality of second positioning components are fixed to the plurality of first positioning components by fasteners to achieve a fixed connection between the upper fixed plate portion and the lower fixed plate portion.

8. The fume purifier according to claim 4, characterized in that, The root portion includes a snap-fit ​​portion and an insertion portion extending outward from the snap-fit ​​portion. The insertion portion is used to insert into the circumferential groove, and the snap-fit ​​portion is used to snap into the annular groove.

9. The oil fume purifier according to claim 8, characterized in that, The snap-fit ​​portion and / or the insertion portion are wedge-shaped blocks, and the thickness of the wedge-shaped blocks gradually decreases from the center away from the center of the separation disc to the center of the separation disc.

10. The oil fume purifier according to claim 1, characterized in that, The cross-section of the intercepting blade has one or more bends.

11. The oil fume purifier according to claim 10, characterized in that, The cross-section of the intercepting blade is V-shaped, including a long strip-shaped first sub-blade and a second sub-blade connected to the first sub-blade, wherein the first sub-blade and / or the second sub-blade are provided with the heating part.

12. The oil fume purifier according to claim 10, characterized in that, The cross-section of the intercepting blade is V-shaped, including a long strip-shaped first sub-blade and a second sub-blade. A long side of the second sub-blade is connected to a long side of the first sub-blade to form an intersection. The heating part is located at the intersection.

13. The oil fume purifier according to claim 10, characterized in that, The intercepting blade includes a long strip-shaped first sub-blade and a second sub-blade. A long side of the second sub-blade is connected to a long side of the first sub-blade to form an intersection, so that the cross-section of the intercepting blade is V-shaped. The concave side of the V-shaped cross-section of the intercepting blade is the inner side of the intercepting blade, and the side opposite to the concave side of the V-shaped cross-section is the outer side of the intercepting blade. The intersecting portion is provided with a protruding strip, the length extension direction of the protruding strip is in the same direction as the length extension direction of the first sub-blade, the protruding strip is located inside the intercepting wind blade, and the heating part is located between the protruding strip and the intersecting portion.

14. The oil fume purifier according to claim 13, characterized in that, The outer boundary of the cross-section of the protrusion along its length is arc-shaped, wavy, polygonal, or a combination thereof.

15. The oil fume purifier according to any one of claims 11 to 14, characterized in that, The angle bisectors of each of the intercepting blades coincide, and the first sub-blade and the second sub-blade of the intercepting blade are symmetrical about the angle bisector of the intercepting blade.

16. The oil fume purifier according to any one of claims 1 to 3, characterized in that, The fume purifier also includes an oil receiving tray, the separation plate is located inside the oil receiving tray, and the bracket is connected to the oil receiving tray so that the power mechanism is located above the oil receiving tray.

17. The oil fume purifier according to claim 16, characterized in that, The bottom of the oil receiving tray is provided with an oil fume passage for the oil fume airflow to rise to contact the separation tray. The edge of the oil fume passage is provided with an annular plate protruding towards the inside of the oil receiving tray. The annular plate, the bottom wall of the oil receiving tray and the inner side wall of the oil receiving tray form an oil receiving space for receiving the grease and / or solid mixture in the oil fume airflow intercepted and separated by the intercepting fan blades.

18. The fume purifier according to claim 17, characterized in that, The annular plate is integrally formed on the edge of the fume passage. When the separating disc is located inside the oil receiving tray, the lower surface of the separating disc is spaced from the upper surface of the annular plate, and the outer edge of the separating disc is located in the oil receiving space.

19. The oil fume purifier according to any one of claims 1 to 3, characterized in that, The cross-sectional shape of the heating element along its length is one or any combination of a circle, an ellipse, a fan shape, or a polygon.

20. The oil fume purifier according to any one of claims 1 to 3, characterized in that, All or part of the intercepting fan blades are provided with a turbulence structure for creating turbulence when the oil fume airflow passes through the gap.

21. The oil fume purifier according to claim 20, characterized in that, The intercepting fan blade, which is equipped with the heating element, is also provided with the turbulence structure.

22. The oil fume purifier according to claim 21, characterized in that, The cross-section of the intercepting blade has one or more bends, one side of the cross-section is the inner side of the intercepting blade, and the other side of the cross-section is the outer side of the intercepting blade; The outer side of the intercepting blade is provided with one or more of the aforementioned turbulence structures, and / or the inner side of the intercepting blade is provided with one or more of the aforementioned turbulence structures.

23. The oil fume purifier according to claim 22, characterized in that, The intercepting blade includes a long strip-shaped first sub-blade and a second sub-blade, with a long side of the first sub-blade connected to a long side of the second sub-blade, making the cross-section of the intercepting blade a V-shaped cross-section. The concave side of the V-shaped cross-section is the inner side of the intercepting blade, and the opposite side is the outer side of the intercepting blade. For the intercepting fan blade equipped with the aforementioned turbulence structure, the turbulence structure is provided on the outer side of the intercepting fan blade, and the heating element is provided on the inner side of the intercepting fan blade.

24. The oil fume purifier according to claim 23, characterized in that, The intersection of the second sub-blade and the first sub-blade forms an intersection portion, which includes a first intersection portion located on the outer side of the intercepting blade and a second intersection portion located on the inner side of the intercepting blade. The turbulence structure is disposed in the first intersection portion, and the heating part is disposed in the second intersection portion.

25. The oil fume purifier according to claim 24, characterized in that, The second intersecting portion is provided with a protruding strip, and the heating part is disposed between the protruding strip and the second intersecting portion.

26. The oil fume purifier according to claim 25, characterized in that, The length extension direction of the convex strip is in the same direction as the length extension direction of the first sub-blade, and the outer boundary of the cross-section of the convex strip along its length direction is arc-shaped, wavy, zigzag, or a combination thereof.

27. The oil fume purifier according to claim 22, characterized in that, For an intercepting fan blade equipped with the aforementioned turbulence structure, the end of the intercepting fan blade closer to the center of the separation disk is the first end, and the end farther from the center of the separation disk is the second end. The turbulence structure is a long strip-shaped protrusion, a groove, or a combination of both; The turbulence structure extends from the first end to the second end, or the length direction of the turbulence structure extends along the length direction of the intercepting blade, and the length of the turbulence structure is less than the length of the intercepting blade.

28. The oil fume purifier according to claim 27, characterized in that, The outer boundary of the cross-section of the disturbance structure along its length is arc-shaped, wavy, polygonal, or a combination thereof.

29. The oil fume purifier according to any one of claims 1 to 3, characterized in that, The intercepting blades of the separation disk are distributed in multiple layers, and each layer of the intercepting blades includes multiple intercepting blades.

Images