CN117704434A - Oil smoke separation net and range hood - Google Patents

Abstract

The invention provides a lampblack separating net and a lampblack absorber, wherein the lampblack separating net comprises a lampblack separating net body, a plurality of groups of air inlet areas and a plurality of groups of guide walls are arranged on the front side surface of the lampblack separating net body, the guide walls are arranged in a backward sunken mode, and the edges of the guide walls extend to the air inlet areas so as to guide lampblack from the front of the lampblack separating net body to the air inlet areas; compared with the prior art, the convex arc-shaped guide surface design of the prior art is abandoned, the guide wall is innovatively arranged to be in a backward concave arrangement mode, so that the oil smoke coming from the front of the oil smoke separation net body contacts with the guide wall, the flow rate of the oil smoke can be reduced by the guide wall which is in a backward concave design and is guided to an air inlet area, the passing time of the oil smoke on the guide wall is prolonged, more oil smoke can be attached to the guide wall, and the oil smoke separation net is enhanced to achieve the oil smoke separation effect.

Description

Oil smoke separation net and range hood

Technical Field

The invention relates to the technical field of range hoods, in particular to a range hood and a range hood.

Background

The fume separation net is used for separating fume. Under the action of a fan of the range hood, the oil smoke generated by cooking can enter the machine after being separated by the oil smoke separating net. Chinese patent CN214581311U discloses an oil filter for range hood and range hood, which realizes the separation of oil fume through a grid air guide column.

However, the effect of the convex arc-shaped grid air guide column on oil collection is poor, and oil smoke is difficult to adhere to the surface of the grid air guide column, so that a lot of oil smoke still enters the range hood after passing through the oil smoke separation net. Therefore, the applicant provides a novel oil smoke separation net structure which can increase oil smoke attached to the surface of an oil net, thereby improving the oil smoke separation effect.

Disclosure of Invention

The invention mainly aims to provide a lampblack separating net and a lampblack absorber, and aims to effectively solve the problem that lampblack separating effect is poor in the prior art.

In order to achieve the above purpose, the technical scheme of the invention is as follows:

the invention provides a lampblack separating net, comprising:

the front side of the oil smoke separating net body is provided with a plurality of groups of air inlet areas and a plurality of groups of guide walls,

the guide wall is arranged in a backward concave manner, and the edge of the guide wall extends to the air inlet area so as to guide the oil smoke from the front of the oil smoke separation net body to the air inlet area.

Compared with the prior art, the convex arc-shaped guide surface design of the prior art is abandoned, the guide wall is innovatively arranged to be in a backward concave arrangement mode, so that the oil smoke coming from the front of the oil smoke separation net body contacts with the guide wall, the flow rate of the oil smoke can be reduced by the guide wall which is in a backward concave design and is guided to an air inlet area, the passing time of the oil smoke on the guide wall is prolonged, more oil smoke can be attached to the guide wall, and the oil smoke separation net is enhanced to achieve the oil smoke separation effect.

In one embodiment, the air inlet area comprises an air inlet groove, and the guide wall is arranged between two adjacent air inlet grooves;

the guide wall comprises two guide surfaces, the two guide surfaces are arranged at an angle, and a streamline is formed at the joint of the two guide surfaces.

In one embodiment, the air inlet area comprises an air inlet groove, and the guide wall is arranged between two adjacent air inlet grooves;

the guide wall comprises a plurality of guide units, and the guide units are distributed along the slotting direction of the air inlet slot; the flow guiding unit comprises a plurality of flow guiding surfaces, a plurality of flow guiding surfaces are arranged at an angle, and a shunt point is formed at the joint of the plurality of flow guiding surfaces.

In one embodiment, the air inlet area comprises an air inlet, and the guide wall is arranged between two adjacent air inlets;

the guide wall comprises a guide unit, the guide unit comprises a plurality of guide surfaces, the guide surfaces are arranged at an angle, and the joint of the guide surfaces forms a diversion point.

In one embodiment, the area of the plurality of groups of air inlet areas occupying the front side surface of the oil smoke separation net body is an air inlet area;

the areas of the plurality of groups of guide walls occupying the front side surface of the oil smoke separation net body are guide areas;

the air inlet area is smaller than the flow guiding area.

In one embodiment, the soot separation net body includes:

the front side surface of the front oil screen is provided with a plurality of air inlet areas and a plurality of guide walls;

a rear oil screen detachably provided at a rear side of the front oil screen; the front side surface of the rear oil screen is provided with a plurality of groups of air outlet areas and a plurality of groups of flow dividing protrusions; the multiple groups of the flow dividing protrusions are arranged in one-to-one correspondence with the multiple groups of the air inlet areas.

In one embodiment, the diverting boss is formed by combining a plurality of first boss sections and a plurality of second boss sections;

the protruding length of the first protruding section is larger than or equal to that of the second protruding section.

In one embodiment, a plurality of the first convex sections and a plurality of the second convex sections are combined so that the longitudinal section of the diverting convex is wavy.

In one embodiment, a plurality of groups of raised lines are arranged on the rear side surface of the front oil screen, and the plurality of groups of raised lines are arranged in one-to-one correspondence with the plurality of groups of air outlet areas; the left side and the right side of each group of raised strips are respectively provided with a group of air inlet areas;

the rear side of preceding oil net is equipped with many longitudinal distribution's oil guide groove, be provided with on the guide groove the sand grip.

The invention also provides a range hood, which comprises the oil fume separation net.

For a better understanding and implementation, the following drawings illustrate the invention in detail.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a front view of a soot separation net of embodiment 1 of the present invention;

FIG. 2 is a cross-sectional view of A-A of FIG. 1;

FIG. 3 is an enlarged view of B in FIG. 2;

fig. 4 is a perspective view of a soot separation net of example 1 of the present invention;

FIG. 5 is an enlarged view of C in FIG. 4;

fig. 6 is a schematic view of a front oil screen of the oil soot separation screen of example 1 of the present invention;

fig. 7 is an enlarged view of D in fig. 6;

fig. 8 is a schematic view of a rear oil screen of the oil soot separating screen of example 1 of the present invention;

fig. 9 is a perspective view of a soot separation net of example 2 of the present invention;

fig. 10 is an enlarged view of E in fig. 9;

fig. 11 is a perspective view of a soot separation net of example 3 of the present invention;

fig. 12 is an enlarged view of F in fig. 11;

fig. 13 is a front view of a soot separation net of embodiment 4 of the present invention;

fig. 14 is a perspective view of a soot separation net of example 4 of the present invention;

fig. 15 is an enlarged view of H in fig. 14;

FIG. 16 is a cross-sectional view of G-G of FIG. 13;

fig. 17 is a cross-sectional view of I-I of fig. 1.

Reference numerals illustrate:

10 front oil net, 110 air inlet groove, 120 guide wall, 121 guide surface, 123 branch line, 124 guide unit, 125 branch point, 130 convex strip, 140 guide oil groove, 150 handle, 160 air inlet, 20 rear oil net, 210 air outlet, 220 branch convex, 221 first convex section, 222 second convex section, 230 oil groove

Detailed Description

In order to better illustrate the present invention, the present invention will be described in further detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the embodiments of the present application, are within the scope of the embodiments of the present application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims. In the description of this application, it should be understood that the terms "first," "second," "third," and the like are used merely to distinguish between similar objects and are not necessarily used to describe a particular order or sequence, nor should they be construed to indicate or imply relative importance. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present invention, it should be understood that the terms "vertical," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present invention.

Under the working action of a fan of the range hood, the oil smoke generated in the cooking process can enter the machine through the oil smoke separation net. The prior art oil smoke separation net basically adopts a convex arc-shaped diversion surface design, and the oil smoke from the front of the oil smoke separation net is split and accelerated to be diverted to the air inlet and then discharged into the machine through the air outlet. However, the effect of the convex arc-shaped diversion surface on oil collection is poor, and the oil smoke is difficult to adhere to the surface of the grid air guide column, so that a lot of oil smoke still enters the range hood after passing through the oil smoke separation net. In order to ensure a better oil smoke separation effect, a part of manufacturers can need to design two layers of middle oil nets or even three layers of middle oil nets in the oil smoke separation net to separate oil smoke, so that the production and manufacturing cost is increased, the whole weight of the oil smoke separation net is increased by phase change, and the oil smoke separation net is not beneficial to being installed on a range hood.

Example 1

Referring to fig. 1 to 8, in order to solve the problem that the oil smoke separation net in the prior art has poor oil smoke separation effect, the invention provides an oil smoke separation net which adopts innovative design and aims to better improve the oil smoke separation effect. Specifically, the oil smoke separation net comprises: the oil smoke separation net body, its leading flank is equipped with multiunit air inlet district and multiunit guide wall 120, wherein, guide wall 120 undercut setting just the edge of guide wall 120 extends to the air inlet district, in order to will come from the oil smoke in oil smoke separation net body the place ahead is guided to the air inlet district.

The oil smoke separation net of this application is installed to the lampblack absorber, gets the electricity at the fan of lampblack absorber and produces suction, is located the air that has the oil smoke of oil smoke separation net body the place ahead is in form the air current under the fan effect, when this air current that has the oil smoke and the leading flank of oil smoke separation net body contact, because guide wall 120 is the backward sunken setting, this just leads to the velocity of flow of this air that has the oil smoke can be slowed down when with guide wall 120 contact to increase the contact time of oil smoke and guide wall 120, make more oil smoke can adhere to on the guide wall 120, strengthen the separation effect of oil smoke separation net to the oil smoke, and then improved the absorption and the removal effect of oil smoke purification granule. In addition, the edge of the guide wall 120 extends into the air inlet area, and the air on the guide wall 120 is guided to the air inlet area by the surface of the guide wall 120 and enters the interior of the oil smoke separation net body, and finally enters the interior of the machine.

In the scene of daily use, because the oil smoke of this application can adhere to at the leading flank of oil smoke separation net body in a large number to the user is at after each time using or after every other time, carries out cleaning treatment through the greasy dirt layer on the guide wall 120 of rag cooperation cleaner to the leading flank of oil smoke separation net body, reduces and demolishs abluent number of times alone after wholly dismantling the lampblack absorber with the oil smoke separation net, and convenience of customers cleans.

In addition, because the design of the guide wall 120 which is arranged in the backward recess of the oil fume separating net body enables the oil fume to be better attached to the front side surface of the oil fume separating net body, so that the quantity of the middle oil nets can be reduced inside the oil fume separating net, the production and manufacturing cost of the oil fume separating net is reduced, and the whole weight of the oil fume separating net is reduced, so that the oil fume separating net is installed on a range hood.

Compared with the prior art, the convex arc-shaped diversion surface 121 design of the prior art is abandoned, the diversion wall 120 is innovatively arranged in a mode of being set to be concave backwards, so that after the lampblack from the front of the lampblack separation net body is contacted with the diversion wall 120, the flow rate of lampblack can be reduced by the diversion wall 120 in the concave backwards design and the lampblack can be guided to an air inlet area, the passing time of the lampblack on the diversion wall 120 is prolonged, more lampblack can be attached to the diversion wall 120, and the lampblack separation net effect on lampblack separation is enhanced.

Regarding the structure of the air inlet area and the guide walls 120, in this embodiment, the air inlet area includes an air inlet slot 110, and the guide walls 120 are disposed between two adjacent air inlet slots 110; the guide wall 120 includes two guide surfaces 121, the two guide surfaces 121 are disposed at an angle, and a split line 123 is formed at a junction of the two guide surfaces 121.

Specifically, each group of the air inlet areas includes an air inlet groove 110, the grooving direction of the air inlet groove 110 is set from top to bottom, the guide wall 120 is disposed between two adjacent air inlet grooves 110 on the left and right, the guide wall 120 is formed by connecting two guide surfaces 121, and a diversion line 123 is formed at the connection position; in addition, the two guide surfaces 121 are disposed at an angle, so that the guide wall 120 is disposed concavely. In an actual use scene, the air with the oil smoke in front of the oil smoke separation net body forms an air flow under the action of the fan, the air flow with the oil smoke is split into left and right air flows when contacting the guide wall 120, and the air flow on the left side is guided into the air inlet groove 110 on the left side of the guide wall 120 by the guide surface 121 on the left side so as to enter the oil smoke separation net body; and the air flow on the right side is guided by the guiding surface 121 on the right side into the air inlet groove 110 on the right side of the guiding wall 120, so as to enter the oil smoke separation net body. In the process of guiding the two air streams to the air inlet groove 110, the air stream coming into contact with the guide wall 120 from the front of the oil smoke separating mesh body is blocked, so that the flow velocity of the air stream is reduced.

Wherein, the oil smoke is attached to the two diversion surfaces 121 and the diversion line 123, so that a user can directly clean the oil stain layers on the two diversion surfaces 121 and the diversion line 123; or the oil drops on the oil stain layer can flow downwards along the diversion surface 121 or the diversion line 123 under the action of self gravity until flowing into the oil collecting cup below the oil smoke separation net, and finally, unified treatment is carried out.

Further, each air inlet slot 110 may be divided into two or three or four sections separated up and down according to the height of the oil smoke separating net, and a long air inlet slot 110 is separately designed into two or three or four sections so as to increase the suction force of a single air inlet slot 110, avoid the shortage of suction force caused by the redundancy of a single air inlet slot 110, and ensure that the air inlet slot 110 has enough suction force to suck the air flow on the periphery side.

In one embodiment, the flow guiding wall 120 is innovatively utilized to absorb the oil smoke from the front of the oil smoke separating mesh body, so that the area of the plurality of groups of air inlet areas occupying the front side surface of the oil smoke separating mesh body is the air inlet area; the areas of the plurality of groups of guide walls 120 occupying the front side surface of the oil smoke separation net body are guide areas 121; the air inlet area is smaller than the flow guide area 121; in this embodiment, the width of the air inlet slot 110 may be reduced, the width of the guide wall 120 may be increased to enable more oil smoke to adhere to the guide wall 120, or the suction force of the air inlet slot 110 may be increased in a phase-changing manner.

In one embodiment, the soot separation net body includes: a front oil screen 10, the front side of which is provided with a plurality of air inlet areas and a plurality of guide walls 120; a rear oil screen 20 detachably provided at a rear side of the front oil screen 10; the front side surface of the rear oil screen 20 is provided with a plurality of groups of air outlet areas and a plurality of groups of flow dividing protrusions 220; the multiple groups of the diversion protrusions 220 are arranged in one-to-one correspondence with the multiple groups of the air inlet areas. In this embodiment, the oil-smoke separation net body is assembled by two parts of the front oil net 10 and the rear oil net 20, specifically, the air with oil smoke flows through the air inlet slot 110 and meets the diversion protrusion 220, the air flow is diverted under the action of the diversion protrusion 220, and the diverted air flow enters the oil-smoke separation net body and flows out of the oil-smoke separation net body through the air outlet area. When the air flows in the oil smoke separation net body, part of oil smoke adheres to the wall surface in the oil smoke separation net body, so that the oil smoke separation effect is realized.

In one embodiment, the diverting boss 220 is formed by combining a plurality of first boss sections 221 and a plurality of second boss sections 222; the protruding length of the first protruding section is equal to the protruding length of the second protruding section, as shown in fig. 17, and in this embodiment, the protruding lengths of the first protruding section and the second protruding section are set to be equal, so that the processing is facilitated.

Further, a plurality of longitudinally distributed oil grooves 230 are formed in the front side surface of the rear oil screen 20, and the diversion protrusions 220 are arranged on the oil grooves 230; after the front oil screen 10 and the rear oil screen 20 are disassembled, and the front side surface of the rear oil screen 20 is cleaned, the oil stain layer on the surface of the diverting protrusion 220 flows downwards along the oil groove 230 along with the cleaning agent, so that cleaning is facilitated. In addition, during the use of the oil fume separating net, the air flow split by the split protrusions 220 may contact with the oil groove 230, so that more oil fume adheres to the surface of the oil groove 230, and the oil fume separating effect is improved.

Further, each group of air outlet areas comprises a plurality of air outlets 210, and the plurality of air outlets 210 in the same group of air outlet areas are distributed from top to bottom, so that the cleaning is convenient.

In one embodiment, a plurality of groups of raised strips 130 are arranged on the rear side surface of the front oil screen 10, and a plurality of groups of raised strips 130 are arranged in one-to-one correspondence with a plurality of groups of air outlet areas; the left and right sides of each of the protruding strips 130 are respectively provided with a group of air inlet areas. The air flow with the oil smoke enters the range hood under the suction action of the air outlet 210, and in the process of being sucked, the air flow contacts with the raised strips 130, so that more oil smoke is attached to the surfaces of the raised strips 130, and the oil smoke separation effect is improved.

In one embodiment, the rear side of the front oil screen 10 is provided with a plurality of longitudinally distributed oil guiding grooves 140, and the protruding strips 130 are disposed on the guiding grooves. After the front oil screen 10 and the rear oil screen 20 are disassembled, and the rear side surface of the front oil screen 10 is cleaned, the oil stain layer on the surface of the raised strips 130 flows downwards along the oil guiding groove 140 along with the cleaning agent, so that cleaning is facilitated. In addition, during the use of the oil fume separating net, the air flow contacts with the oil guiding groove 140, so that more oil fume adheres to the surface of the oil guiding groove 140, and the oil fume separating effect is improved.

In one embodiment, the front oil screen is provided with a handle 150 of hollowed out design.

Example 2

As shown in fig. 9 to 10, this embodiment is substantially the same as embodiment 1, except that the structures of the air intake area and the guide wall 120 are deformed. In this embodiment, the air inlet area includes an air inlet slot 110, and the guide wall 120 is disposed between two adjacent air inlet slots 110; the guide wall 120 includes a plurality of guide units 124, and the plurality of guide units 124 are distributed along the slotting direction of the air inlet slot 110; the flow guiding unit 124 includes a plurality of flow guiding surfaces 121, wherein the plurality of flow guiding surfaces 121 are disposed at an angle, and a splitting point 125 is formed at a joint of the plurality of flow guiding surfaces 121.

Specifically, each group of the air inlet areas includes an air inlet slot 110, the slotting direction of the air inlet slot 110 is set from top to bottom, the guide wall 120 is disposed between two adjacent air inlet slots 110 on the left and right, the guide wall 120 includes a plurality of guide units 124, each guide unit 124 is formed by connecting a plurality of guide surfaces 121, and a split point 125 is formed at the connection position; the plurality of guide surfaces 121 are disposed at an angle, so that the guide wall 120 presents a rhombic concave arrangement.

In an actual use scene, the air with the oil smoke in front of the oil smoke separation net body forms an air flow under the action of the fan, the air flow with the oil smoke is split into left and right air flows when contacting the guide wall 120, and the air flow on the left side is guided into the air inlet groove 110 on the left side of the guide wall 120 by the guide surface 121 on the left side so as to enter the oil smoke separation net body; and the air flow on the right side is guided by the guiding surface 121 on the right side into the air inlet groove 110 on the right side of the guiding wall 120, so as to enter the oil smoke separation net body. In the process of guiding the two air streams to the air inlet groove 110, the air stream coming into contact with the guide wall 120 from the front of the oil smoke separating mesh body is blocked, so that the flow velocity of the air stream is reduced.

Example 3

As shown in fig. 11 to 12, this embodiment is substantially the same as embodiment 2, except that the structures of the air intake area and the guide wall 120 are deformed. In this embodiment, the air inlet area includes an air inlet 160, and the guide wall 120 is disposed between two adjacent air inlets; the guide wall 120 includes a guide unit 124, where the guide unit 124 includes a plurality of guide surfaces 121, the guide surfaces 121 are disposed at an angle, and a splitting point 125 is formed at a joint of the guide surfaces 121.

Specifically, the guide wall 120 is disposed between two adjacent air inlets on the left and right, the guide wall 120 includes a guide unit 124, the guide unit 124 is formed by connecting a plurality of guide surfaces 121, and a split point 125 is formed at the connection position; the plurality of guide surfaces 121 are disposed at an angle, so that the guide wall 120 presents a rhombic concave arrangement.

In an actual use scene, the air with the oil smoke in front of the oil smoke separation net body forms an air flow under the action of the fan, the air flow with the oil smoke is split into left and right air flows when contacting the guide wall 120, and the air flow on the left side is guided into an air inlet on the left side of the guide wall 120 by the guide surface 121 on the left side so as to enter the oil smoke separation net body; and the air flow on the right side is guided by the guiding surface 121 on the right side into the air inlet on the right side of the guiding wall 120, so as to enter the oil smoke separation net body.

Example 4

As shown in fig. 13 to 16, this embodiment is substantially the same as embodiment 2, except that the structures of the air intake area and the guide wall 120 are deformed. In this embodiment, the split-flow protrusion 220 is formed by combining a plurality of first protrusion sections 221 and a plurality of second protrusion sections 222; the protruding length of the first protruding section 221 is greater than that of the second protruding section 222, as shown in fig. 16, in this embodiment, the first protruding section and the second protruding section with the height fluctuation are combined into the split-flow protrusion, so that the air flow entering through the air inlet has different air inlet frequencies under the action of the first protruding section and the second protruding section, thereby preventing the oil smoke separation net from generating noise due to resonance, and realizing the noise reduction function. Preferably, a plurality of the first protrusion sections and a plurality of the second protrusion sections are combined so that a longitudinal section of the diverting protrusion is waved (i.e., a section of the diverting protrusion is waved).

Example 5

The invention also provides a range hood, which comprises the oil fume separation net.

The present invention is not limited to the above-described embodiments, but, if various modifications or variations of the present invention are not departing from the spirit and scope of the present invention, the present invention is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.

Claims (10)

1. A fume separation net, comprising:

the oil smoke separation net body, its leading flank is equipped with multiunit air inlet district and multiunit guide wall, wherein, the guide wall is sunken setting backward just the edge of guide wall extends to the air inlet district is in order to will come from the oil smoke of oil smoke separation net body the place ahead is guided to the air inlet district.

2. The oil and smoke separating net according to claim 1, wherein:

the air inlet area comprises air inlet grooves, and the guide walls are arranged between two adjacent air inlet grooves;

the guide wall comprises two guide surfaces, the two guide surfaces are arranged at an angle, and a streamline is formed at the joint of the two guide surfaces.

3. The oil and smoke separating net according to claim 1, wherein:

the air inlet area comprises air inlet grooves, and the guide walls are arranged between two adjacent air inlet grooves;

the guide wall comprises a plurality of guide units, and the guide units are distributed along the slotting direction of the air inlet slot; the flow guiding unit comprises a plurality of flow guiding surfaces, a plurality of flow guiding surfaces are arranged at an angle, and a shunt point is formed at the joint of the plurality of flow guiding surfaces.

4. The oil and smoke separating net according to claim 1, wherein:

the air inlet area comprises air inlets, and the guide walls are arranged between two adjacent air inlets;

the guide wall comprises a guide unit, the guide unit comprises a plurality of guide surfaces, the guide surfaces are arranged at an angle, and the joint of the guide surfaces forms a diversion point.

5. The oil and smoke separating net according to claim 1, wherein:

the areas of the multiple groups of air inlet areas occupying the front side surface of the oil smoke separation net body are air inlet areas;

the areas of the plurality of groups of guide walls occupying the front side surface of the oil smoke separation net body are guide areas;

the air inlet area is smaller than the flow guiding area.

6. The oil soot separation net according to any one of claims 1 to 5, wherein the oil soot separation net body comprises:

the front side surface of the front oil screen is provided with a plurality of air inlet areas and a plurality of guide walls;

a rear oil screen detachably provided at a rear side of the front oil screen; the front side surface of the rear oil screen is provided with a plurality of groups of air outlet areas and a plurality of groups of flow dividing protrusions; the multiple groups of the flow dividing protrusions are arranged in one-to-one correspondence with the multiple groups of the air inlet areas.

7. The oil and smoke separating mesh of claim 6 wherein:

the split-flow protrusion is formed by combining a plurality of first protrusion sections and a plurality of second protrusion sections;

the protruding length of the first protruding section is larger than or equal to that of the second protruding section.

8. The oil and smoke separating mesh of claim 7 wherein:

the first protruding section and the second protruding section are combined to make the longitudinal section of the split-flow protrusion wave.

9. The oil and smoke separating mesh of claim 6 wherein:

the rear side surface of the front oil screen is provided with a plurality of groups of raised lines, and the plurality of groups of raised lines are arranged in one-to-one correspondence with the plurality of groups of air outlet areas; the left side and the right side of each group of raised strips are respectively provided with a group of air inlet areas;

the rear side of preceding oil net is equipped with many longitudinal distribution's oil guide groove, be provided with on the guide groove the sand grip.

10. A range hood comprising a fume separation screen according to any one of claims 1 to 9.