CN108224525B - Range hood capable of removing oil by means of speed regulation and vortex generation - Google Patents

Range hood capable of removing oil by means of speed regulation and vortex generation Download PDF

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Publication number
CN108224525B
CN108224525B CN201810188648.4A CN201810188648A CN108224525B CN 108224525 B CN108224525 B CN 108224525B CN 201810188648 A CN201810188648 A CN 201810188648A CN 108224525 B CN108224525 B CN 108224525B
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oil
range hood
vortex
main body
oil smoke
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CN108224525A (en
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陈小平
李健鹏
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Foshan Viomi Electrical Technology Co Ltd
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Foshan Viomi Electrical Technology Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/20Removing cooking fumes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/14Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Ventilation (AREA)

Abstract

A range hood for removing oil by speed regulation and eddy generation is provided with a range hood main body and an oil-smoke separation assembly capable of generating centrifugal force to remove oil, wherein the oil-smoke separation assembly is assembled inside the range hood main body in a transmission manner. The oil fume separation component is provided with an oil fume separation main body, a variable speed motor and a vortex generation device set which enables gas to generate vortex, the vortex generation device set is integrally assembled on the surface of the oil fume separation main body, the variable speed motor is in transmission connection with the oil fume separation main body, and the variable speed motor is electrically connected with an external power supply. The centrifugal force generated by the oil smoke gas of the oil smoke separation assembly of the range hood is adjusted, and the vortex generating device group enables the gas to generate vortex to increase the collision rate of the oil smoke particles and form large particles, so that the oil removing effect of the range hood is greatly improved. Meanwhile, the oil smoke machine can avoid the contact of a large amount of oil smoke particle-containing gas and the wind wheel, greatly improve the separation effect of the oil smoke particles and reduce the noise generated by the accumulated oil stain of the wind wheel.

Description

Range hood capable of removing oil by speed regulation and eddy current generation
Technical Field
The invention relates to the field of range hoods, in particular to a range hood for removing oil by speed regulation and vortex generation.
Background
In the range hood in the prior art, oil smoke is separated basically only by means of centrifugal force generated by rotation of a wind wheel, only a small part of oil smoke particles can be removed, the separation effect is low, and a large amount of oil smoke particles are remained in exhausted gas, so that air pollution is caused. And the wind wheel directly contacts with the oil smoke, and oil smoke particles can be adhered to the wind wheel after long-term use, so that the wind wheel works under load, and the working efficiency of the wind wheel is seriously influenced, thereby reducing the whole smoking effect.
Therefore, aiming at the defects of the prior art, the range hood for removing oil by speed regulation and vortex generation is necessary to solve the defects of the prior art.
Disclosure of Invention
The invention aims to avoid the defects of the prior art and provides a range hood for removing oil by speed regulation and vortex generation. The centrifugal force generated by the oil smoke gas of the oil smoke separation assembly of the range hood is adjusted, and the vortex generating device group enables the gas to generate vortex to increase the collision rate of the oil smoke particles and form large particles, so that the oil removing effect of the range hood is greatly improved.
The above object of the present invention is achieved by the following technical means.
The range hood capable of removing oil through speed regulation and eddy flow generation is provided with a range hood main body and a range hood capable of removing oil through centrifugal force, and the oil smoke separation assembly is assembled inside the range hood main body in a transmission mode.
The oil smoke separation component is provided with an oil smoke separation main body, a variable speed motor and a vortex generating device set which enables gas to generate vortex, the vortex generating device set is integrally assembled on the surface of the oil smoke separation main body, the variable speed motor is in transmission connection with the oil smoke separation main body, and the variable speed motor is electrically connected with an external power supply.
Preferably, the variable speed motor is provided with a controller and a motor main body, and the controller is electrically connected to the motor main body.
Preferably, the controller is a transformer or a frequency converter.
Preferably, the vortex flow generating device group is provided with a cooling body, and the cooling body is fixedly assembled on the surface of the vortex flow generating device group.
Preferably, the cooling body is a metal cooling body.
Preferably, the metal cooling body is at least one of a stainless steel body, an iron body, a copper body, and an aluminum body.
Preferably, the oil smoke separation main part is provided with many concentric tubes, rotation axis and a plurality of eaves portion structure that the axis coincides, the rotation axis respectively with the fixed connection of many concentric tubes's one end, a plurality of eaves portion structures are to encircle the setting and fixed mounting in the other end of the concentric tube that corresponds, the rotation axis is connected with the motor main part transmission.
The side, facing the ground when the oil smoke separation assembly is installed, of the oil smoke separation assembly is defined as the lower side, and concentric pipes which are outward from a center shaft are sequentially defined as a 1 st concentric pipe, an i th concentric pipe, an n-1 th concentric pipe and an n th concentric pipe, wherein i is more than or equal to 2 and less than or equal to n, and n is a positive integer.
Height of No. 1 concentric tube is H 1 Venture...., height of ith concentric tubeIs H i Said n-1 concentric tubes have a height H n-1 The height of the n-th concentric tube is H n ,H 1 Has the maximum value of H n The value of (c) is minimal.
Preferably, the vortex generating device assembly is fixedly mounted on an outer surface of the concentric tube and surrounds a joint between the eaves structure and the concentric tube, and the vortex generating device assembly is mounted on an upper surface of the eaves structure.
Each vortex generating device group consists of one or more vortex generating sub-devices in the same eaves structure.
Preferably, the vortex generating device groups are m, m is any positive integer greater than 0, and the m vortex generating device groups are respectively fixedly installed on the outer surfaces of the concentric tubes and surround the connection part of the eaves part structure and the concentric tubes.
Preferably, above-mentioned cigarette machine main part is provided with shell, convulsions subassembly and oil collecting device, and the convulsions subassembly is fixed to be assembled in the inside of shell, and oil smoke separation subassembly transmission is assembled in the inside of shell and is located the below of convulsions subassembly, and oil collecting device assembles in the bottom of shell.
Preferably, the casing is provided with a plurality of casing air inlets and annular sheets matched with the plurality of casing air inlets, the annular sheets are fixedly installed or integrally connected to the corresponding inner surface of the casing and positioned at the edges of the casing air inlets, and the annular sheets correspond to the casing air inlets one to one.
Preferably, the air draft assembly is provided with a fan, a wind wheel and a volute, the fan and the wind wheel are assembled inside the volute, the wind wheel is in transmission connection with the fan, the volute is fixedly installed inside the shell, an air inlet of the volute is communicated with an air outlet above the concentric tube, and an air outlet of the volute is communicated with an air outlet of the cigarette machine main body.
Preferably, the concentric tube is formed by a plurality of broken lines surrounding the central axis, and the intersection position of two adjacent line segments on the inner wall of the concentric tube is a vortex generation position.
Preferably, the diameter of one end of the concentric tubes is larger than the diameter of the other end.
Preferably, at least one eave structure is fixedly connected to the other end of the concentric tube.
Preferably, the concentric tubes are provided with turbulence means which are seamlessly connected around the ends of one end of the concentric tubes.
Preferably, the eaves structure is provided with a plurality of through holes.
The invention relates to a range hood for removing oil by speed regulation and eddy current generation, which is provided with a range hood main body and an oil-smoke separation assembly capable of generating centrifugal force to remove oil, wherein the oil-smoke separation assembly is assembled in the range hood main body in a transmission manner. The oil smoke separation component is provided with an oil smoke separation main body, a variable speed motor and a vortex generating device set which enables gas to generate vortex, the vortex generating device set is integrally assembled on the surface of the oil smoke separation main body, the variable speed motor is in transmission connection with the oil smoke separation main body, and the variable speed motor is electrically connected with an external power supply. The centrifugal force generated by the oil smoke gas of the oil smoke separation component of the range hood is adjusted, and the vortex generating device group enables the gas to generate vortex to increase the collision rate of oil smoke particles and form large particles, so that the oil removing effect of the range hood is greatly improved. Simultaneously, the oil smoke machine can avoid the contact of a large amount of oil smoke particle-containing gas and the wind wheel, greatly improve the separation effect of the oil smoke particles and reduce the noise generated by the accumulated oil stain of the wind wheel.
Drawings
The invention is further illustrated by means of the attached drawings, the content of which is not in any way limiting.
Fig. 1 is a schematic structural diagram of an embodiment 1 of a range hood for removing oil by speed regulation and vortex generation according to the invention.
Fig. 2 is a schematic structural diagram of the oil-smoke separation main body in fig. 1.
Fig. 3 is a perspective view of the oil smoke separating body in fig. 1.
Fig. 4 is a highly schematic view of the concentric tubes of fig. 1.
Fig. 5 is a perspective view of the housing and oil catcher of the present invention.
Fig. 6 is a simulation diagram of the flow of soot body gas according to the present invention.
In fig. 1 to 6, there are included:
oil smoke separation component 1, oil smoke separation main body 11, concentric pipe 111, spoiler 1111, vortex generation position 1112, rotating shaft 112, eaves structure 113, through hole 1131, vortex generation device group 12, cooling body 121, variable speed motor 13,
A housing 2, a housing air inlet 21, a ring-shaped sheet 22,
The oil collecting device 3, the air draft assembly 4, the wind wheel 41, the fan 42 and the volute 43.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1.
A range hood capable of removing oil through speed regulation and eddy generation is provided with a range hood main body and an oil smoke separation assembly 1 capable of generating centrifugal force to remove oil, wherein the oil smoke separation assembly 1 is assembled inside the range hood main body in a transmission mode, as shown in figures 1 to 6.
The oil smoke separation component 1 is provided with an oil smoke separation main body 11, a variable speed motor 13 and a vortex generating device group 12 which enables gas to generate vortex, the vortex generating device group 12 is integrally assembled on the surface of the oil smoke separation main body 11, the variable speed motor 13 is in transmission connection with the oil smoke separation main body 11, and the variable speed motor 13 is electrically connected with an external power supply.
The variable speed motor 13 is provided with a controller and a motor main body, and the controller is electrically connected to the motor main body. The controller of the present invention is preferably a frequency converter, and the controller may also be a transformer, and the specific implementation is determined according to the actual situation.
When the amount of the oil smoke gas in the external environment is large, the controller controls the rotating speed of the motor main body to increase, and when the amount of the smoke gas in the external environment is small, the controller controls the rotating speed of the motor main body to decrease.
The vortex generating device group 12 is provided with a cooling body 121, and the cooling body 121 is fixedly assembled on the surface of the vortex generating device group 12. The cooling body 121 is a metal cooling body 121. The metal cooling body 121 of the present embodiment is preferably a stainless steel body, and may be one or more of an iron body, a copper body, an aluminum body, and the like.
The metal cooling body 121 of the stainless steel body has advantages of low price and corrosion resistance.
The oil smoke separation main part 11 is provided with a plurality of concentric tubes 111, a rotating shaft 112 and a plurality of eaves structures 113, the rotating shaft 112 is respectively fixedly connected with one end of the concentric tubes 111, the eaves structures 113 are arranged around and fixedly installed at the other end of the corresponding concentric tube 111, and the rotating shaft 112 is in transmission connection with the motor main part.
The side, facing the ground when the oil smoke separation assembly 1 is installed, of the oil smoke separation assembly is defined as the lower side, and concentric tubes 111 outwards from a middle shaft are sequentially defined as a 1 st concentric tube, an i th concentric tube, an n-1 th concentric tube, an n th concentric tube, wherein i is more than or equal to 2 and less than or equal to n, and n is a positive integer.
Height of the 1 st concentric tube is H 1 Said i Said n-1 concentric tubes have a height H n-1 The height of the n-th concentric tube is H n ,H 1 Has the maximum value of H n The value of (c) is minimal.
The vortex generating device group 12 is fixedly installed on the outer surface of the concentric tube 111 and surrounds the connection part of the cornice structure 113 and the concentric tube 111, and the vortex generating device group 12 is installed on the upper surface of the cornice structure 113. Each vortex generating device group 12 is made up of one or more vortex generating sub-devices in the same eave structure 113.
The vortex generating device groups 12 are m, m is any positive integer larger than 0, and the m vortex generating device groups 12 are respectively and fixedly installed on the outer surface of the concentric pipe 111 and surround the joint of the eaves structure 113 and the concentric pipe 111. The vortex generating device group 12 of the invention has the function of enabling the gas to generate vortex, increasing the collision rate of oil smoke particles and forming large particles, thereby improving the oil removing capability.
N =3 in the present embodiment, that is, the concentric tubes 111 in the present embodiment are provided with 3. In the present embodiment, m =2, that is, the vortex generating device group 12 is provided with 2, one is provided in the 3 rd concentric tube, and the other is provided in the 2 nd concentric tube. The number of concentric tubes 111 of the present invention can be any positive integer, and the vortex generating device assembly 12 can be less than or equal to any positive integer number of concentric tubes 111.
The cigarette machine main part is provided with shell 2, convulsions subassembly 4 and oil collecting device 3, and convulsions subassembly 4 fixed mounting is in the inside of shell 2, and oil smoke separation subassembly 1 transmission is assembled in the inside of shell 2 and is located the below of convulsions subassembly 4, and oil collecting device 3 assembles in the bottom of shell 2.
The housing 2 is provided with a plurality of housing air inlets 21 and a plurality of annular sheets 22 matching with the housing air inlets 21, the annular sheets 22 are integrally connected with the corresponding inner surface of the housing 2 and are positioned at the edge of the housing air inlets 21, the annular sheets 22 are in one-to-one correspondence with the housing air inlets 21, the annular sheets 22 of the present invention can also be fixedly installed on the housing, and the specific implementation is determined by implementation. The ring-shaped piece 22 functions to generate a vortex when the oil smoke gas enters the housing 2, and simultaneously prevents oil smoke particles from being thrown out of the external space from the housing air inlet 21 of the housing 2 when being thrown out of the oil smoke separation assembly 1.
The air exhaust assembly 4 is provided with a fan 42, a wind wheel 41 and a volute 43, the fan 42 and the wind wheel 41 are assembled inside the volute 43, the wind wheel 41 is in transmission connection with the fan 42, the volute 43 is fixedly installed inside the shell 2, an air inlet of the volute 43 is communicated with an air outlet above the concentric tube 111, and an air outlet of the volute 43 is communicated with an air outlet of the cigarette machine main body.
The concentric tube 111 is formed by a line segment formed by a plurality of broken lines surrounding the middle axis for a circle, and the intersection position of two adjacent line segments on the inner wall of the concentric tube 111 is a vortex generation position 1112. The shape of the concentric tube 111 of the invention has the function of enabling the oil smoke gas to generate vortex on the inner wall of the concentric tube 111, thereby improving the efficiency of removing the oil smoke.
The diameter of one end of the concentric tube 111 is larger than the diameter of the other end. One end of the concentric tube 111 is connected to the air exhaust assembly 4, i.e. the air outlet of the concentric tube 111, and the other end of the concentric tube 111 is the air inlet of the concentric tube 111, and it can be known from the venturi effect that the larger the area through which the fluid flows, the smaller the flow rate, i.e. the speed of one end of the gas concentric tube 111 is higher than the speed of the other end of the concentric tube 111. According to bernoulli's law, the higher the speed of the gas, the lower the pressure, so that the pressure at the end of the concentric tube 111 connected with the ventilation assembly 4 is high, and the pressure at the air inlet of the concentric tube 111 is low, thereby increasing the pressure difference between the air inlet of the concentric tube 111 and the external environment, so as to promote the oil smoke gas to enter, and improve the oil absorption effect.
The other end of the concentric tube 111 of the present invention may be fixedly connected with at least one eave structure 113, or the other end of the concentric tube 111 may be fixedly connected with only one eave structure 113. The other end of the 1 st concentric tube of this embodiment is connected with two eaves structure 113. The effect of two eaves portion structures 113 of 1 st concentric union coupling has reduced the space volume between 1 st concentric pipe and the 2 nd concentric pipe to reduce the area of the air inlet of the 2 nd concentric pipe, improved gaseous admission speed, increase the inside and exterior space's of concentric pipe 111 pressure differential.
The concentric tube 111 is provided with a spoiler 1111, and the spoiler 1111 is seamlessly connected around the end connected to one end of the concentric tube 111. The turbulence device 1111 is used for generating turbulence for the oil smoke gas, thereby improving the oil removing capability.
The eave structure 113 is provided with a plurality of through holes 1131. Through-hole 1131's effect can be when oil smoke separating component 1 is rotatory, and the oil particle that will assemble into the large granule breaks away from inside oil smoke separating component 1, improves the separation effect of oil smoke particle greatly.
The working principle of the range hood is as follows: the range hood is opened, the motor drives the oil smoke separation component 1, the wind wheel 41 of the air draft component 4 rotates simultaneously, oil smoke particles are separated in seven layers in the range hood, and finally the oil smoke particles are discharged from an almost clean gas through the gas outlet. The seven-layer separation is specifically as follows:
first layer separation, inertial separation: the oil smoke enters the interior of the range hood through the shell air inlet 21 of the shell 2, and the oil smoke enters the annular sheet 22 after entering the shell air inlet 21, because of the pressure difference between the interior of the shell 2 and the external environment and the sudden change of the area of the shell air inlet 21, the air flow speed is accelerated, and the inertia momentum is relatively increased. And the oil smoke will form a very thin boundary layer around the ring-shaped sheet 22, and because the outer shell air inlet 21 of the outer shell 2 forms an included angle with the ring-shaped sheet 22, the oil smoke is forced to flow upwards to enter the oil smoke separation assembly 1 after flowing downwards along the ring-shaped sheet 22, so that the heavier oil separates from the crude oil smoke flow field in the downward inertial motion and moves downwards to be collected in the oil collection device 3 at the bottom of the outer shell 2, and the first inertial separation is realized.
Second layer separation, vortex separation: the oil smoke particles separated by the first layer further generate flow field separation in the downward and upward flowing direction of the annular sheet 22, and the oil smoke particles cause an unstable flow field under the flow field separation to further form a vortex. The flow field or vortex interacts with the adjacent flow field or vortex, forming a non-stop rotating flow field on the ring-shaped plate 22, and the rotating vortex reaches the maximum vortex amount. The remaining light oil smoke will not stop at the rotating vortex of the annular sheet 22 and accumulate, and when a certain weight is accumulated, the flow field will not support the weight of the oil drop, and will fall downwards or flow along the annular sheet 22 to the oil collecting device 3.
Third layer separation, centrifugal separation: the rotation of the eave structure 113 following the concentric tube 111 creates a centrifugal force that interacts with the attraction of the extraction assembly 4. After the second separation, the remaining lighter oil smoke firstly contacts the outermost end of the eaves structure 113 and then enters the concentric tube 111 when entering the concentric tube 111, the centrifugal force at the outermost end of the eaves structure 113 can separate or block part of the fluid or the oil smoke particles from entering the concentric tube 111 and move outwards, the fluid or the oil smoke particles are thrown out at a higher tangential speed, the thrown particles can fall on the annular sheet 22, and finally the oil smoke particles flow to the oil collecting device 3 along the annular sheet 22.
Fourth layer separation, inertial separation and centrifugal separation: after the third layer of separation, the remaining oil smoke with lighter weight is simultaneously subjected to centrifugal force and attractive force, but the relative attractive force is greater than the centrifugal force. Some of the oil smoke will flow through the through holes 1131 to the adjacent eaves structure 113, and due to inertia effect, the oil smoke and the oil smoke particles are gathered into larger oil smoke particles and flow downward, and due to centrifugal force effect, the oil smoke particles are thrown out at a higher tangential speed and finally flow along the ring-shaped sheet 22 to the oil collecting device 3.
Fifth layer separation, cyclonic centrifugal force and secondary vortex generation of concentric tubes 111: the inner wall of the concentric tube 111 rotates to form a cyclone, fluid or particles in the tube move towards the wall of the tube in the low-pressure region under the action of centrifugal force, the tube wall forms a high tangential velocity, and part of oil smoke is blocked from flowing upwards. In addition, the residual oil smoke can form vortex in the vortex generating device, and the vortex generating device does not stop rotating, so that the oil smoke is captured and cannot escape from the pipeline. After the attraction force and the centrifugal force are removed, the oil smoke which continuously rotates from the secondary vortex and moves at the pipe wall in a high tangent mode flows downwards along the inner pipe wall due to gravity and is collected to the oil collecting device 3.
The sixth layer is separated, and the turbulence device 1111 is separated: the spoiler 1111 at one end of the concentric tube 111 generates flow field separation on the remaining oil smoke, and the oil smoke is captured by the vortex which prevents part of the oil smoke from flowing upwards and rotating automatically due to the instability of the flow field.
Seventh layer separation, centrifugal separation of wind wheel 41: after the first six layers of separation, a small amount of very light oil smoke particles are sucked into the wind wheel 41 of the air draft assembly 4 due to pressure difference, the rotating wind wheel 41 forms centrifugal force to throw the remaining small amount of oil smoke particles onto the inner wall of the fan 42, and finally nearly clean air is discharged outside through the air outlet.
The centrifugal force generated by the oil smoke gas of the oil smoke separation component 1 of the range hood is adjusted, and the vortex generating device group 12 enables the gas to generate vortex to increase the collision rate of the oil smoke particles and form large particles, so that the oil removing effect of the range hood is greatly improved. Meanwhile, the oil smoke machine can avoid the contact of a large amount of oil smoke particle-containing gas and the wind wheel 41, greatly improve the separation effect of the oil smoke particles and reduce the noise generated by the accumulated oil stain of the wind wheel 41.
Example 2.
The utility model provides a lampblack absorber of deoiling through speed governing and production vortex, other characteristics are the same with embodiment 1, the difference lies in: n =4 in the present embodiment, that is, 4 concentric tubes 111 in the present embodiment are provided. In the present embodiment, m =2, that is, the vortex generating device group 12 is provided in 2, one is provided in the 4 th concentric tube, and the other is provided in the 3 rd concentric tube. While the concentric tubes 111 of this embodiment correspond one-to-one to the eave structures 113.
This lampblack absorber through speed governing and production vortex deoiling compares with embodiment 1, has increased a concentric tube 111, has also increased oil smoke separation subassembly 1 in the inside space volume of shell 2 promptly to reduced the area of concentric tube 111 air inlet, improved gaseous admission speed, increased the pressure differential of concentric tube 111 inside and exterior space, thereby can improve the separation rate of oil smoke particle.
Example 3.
The utility model provides a lampblack absorber of deoiling through speed governing and production vortex, other characteristics are the same with embodiment 1, the difference lies in: the metal cooling member 121 of the present embodiment is preferably a copper member.
The thermal conductivity of the copper body of this example was 377W/m.K, and the thermal conductivity of the stainless steel body of example 1 was only 16W/m.K. The coefficient of heat conductivity of the copper body is higher than the stainless steel body far away, so the lampblack absorber of this embodiment can condense the oil smoke more fast, and the oil collecting capacity is higher.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (9)

1. The utility model provides a lampblack absorber of deoiling through speed governing and production vortex which characterized in that: the range hood is provided with a range hood main body and an oil smoke separation assembly capable of generating centrifugal force to remove oil, and the oil smoke separation assembly is assembled in the range hood main body in a transmission manner;
the oil fume separation component is provided with an oil fume separation main body, a variable speed motor and a vortex generation device group which enables gas to generate vortex, the vortex generation device group is integrally assembled on the surface of the oil fume separation main body, the variable speed motor is in transmission connection with the oil fume separation main body, and the variable speed motor is electrically connected with an external power supply;
the oil smoke separation main part has many concentric tubes, rotation axis and a plurality of eaves portion structure of axis coincidence, and the rotation axis is the fixed connection with the one end of many concentric tubes respectively, and a plurality of eaves portion structures are around setting up and fixed mounting in the other end of the concentric tube that corresponds, and the rotation axis is connected with the motor main part transmission.
2. The range hood according to claim 1, wherein the range hood is capable of removing oil by means of speed regulation and vortex generation, and is characterized in that: the variable speed motor is provided with a controller and a motor main body, and the controller is electrically connected with the motor main body.
3. The range hood according to claim 2, wherein the range hood is capable of removing oil by means of speed regulation and vortex generation, and is characterized in that: the controller is a transformer or a frequency converter.
4. A range hood according to claim 3 for removing oil by speed regulation and vortex generation, characterized in that: the vortex generating device group is provided with a cooling body, and the cooling body is fixedly assembled on the surface of the vortex generating device group.
5. The range hood capable of removing oil through speed regulation and vortex generation according to claim 4, wherein the range hood comprises: the cooling body is a metal cooling body;
the metal cooling body is at least one of a stainless steel body, an iron body, a copper body or an aluminum body.
6. The range hood according to claim 5, wherein the range hood is capable of removing oil by means of speed regulation and vortex generation, and is characterized in that: defining one side of the oil fume separation component, which faces the ground when the oil fume separation component is installed, as a lower part, and sequentially defining concentric pipes from a central shaft to the outside as a 1 st concentric pipe, an i th concentric pipe, an i.
Height of the 1 st concentric tube is H 1 Said i Said n-1 concentric tubes have a height H n-1 The height of the n-th concentric tube is H n ,H 1 Has the maximum value of H n The value of (c) is minimal.
7. The range hood of claim 6, wherein the range hood is capable of removing oil by speed regulation and vortex generation, and the range hood is characterized in that: the vortex generating device group is fixedly arranged on the outer surface of the concentric tube and surrounds the joint of the cornice structure and the concentric tube, and the vortex generating device group is arranged on the upper surface of the cornice structure;
each vortex generating device group consists of one or more vortex generating sub-devices in the same eaves structure.
8. The range hood according to claim 7, wherein the range hood is capable of removing oil by means of speed regulation and vortex generation, and is characterized in that: the vortex generating device group is provided with m, m is for being greater than 0 arbitrary positive integer, and m vortex generating device group is fixed mounting respectively in the surface of concentric tube and around in the junction of eaves portion structure and concentric tube.
9. The range hood of claim 8, wherein the range hood is capable of removing oil by speed regulation and vortex generation, and the range hood is characterized in that: the range hood main body is provided with a shell, an air draft assembly and an oil collecting device, the air draft assembly is fixedly assembled inside the shell, the oil smoke separating assembly is assembled inside the shell in a transmission mode and located below the air draft assembly, and the oil collecting device is assembled at the bottom of the shell;
the shell is provided with a plurality of shell air inlets and annular sheets matched with the plurality of shell air inlets, the annular sheets are fixedly installed or integrally connected to the corresponding inner surface of the shell and positioned at the edges of the shell air inlets, and the annular sheets correspond to the shell air inlets one to one;
the air draft assembly is provided with a fan, a wind wheel and a volute, the fan and the wind wheel are assembled inside the volute, the wind wheel is in transmission connection with the fan, the volute is fixedly installed inside the shell, an air inlet of the volute is communicated with an air outlet above the concentric pipe, and an air outlet of the volute is communicated with an air outlet of the cigarette machine main body;
the concentric tube is formed by a line segment consisting of a plurality of broken lines surrounding the middle shaft for a circle, and the intersection position of two adjacent line segments on the inner wall of the concentric tube is a vortex generation position;
the diameter of one end of the concentric tube is larger than that of the other end;
the other end of the concentric tube is fixedly connected with at least one eaves structure;
the concentric tube is provided with a turbulence device, and the turbulence device is connected to the tail end of one end of the concentric tube in a seamless surrounding manner;
the eaves structure is provided with a plurality of through-holes.
CN201810188648.4A 2018-03-07 2018-03-07 Range hood capable of removing oil by means of speed regulation and vortex generation Active CN108224525B (en)

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CN201810188648.4A CN108224525B (en) 2018-03-07 2018-03-07 Range hood capable of removing oil by means of speed regulation and vortex generation

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Application Number Priority Date Filing Date Title
CN201810188648.4A CN108224525B (en) 2018-03-07 2018-03-07 Range hood capable of removing oil by means of speed regulation and vortex generation

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210448A (en) * 1987-09-30 1989-06-07 Tiong Ee Ong Cooker hood with oil extraction
US5395410A (en) * 1993-12-21 1995-03-07 Jang; Sun-Sing Fume exhauster
CN2348289Y (en) * 1998-10-28 1999-11-10 卞应元 Cooking fume collecting air exhauster
CN105545771A (en) * 2016-01-31 2016-05-04 佛山市顺德区合捷电器实业有限公司 Centrifugal fan module used for range hood
CN205842814U (en) * 2016-07-14 2016-12-28 黄震 A kind of smoke exhaust ventilator reducing environmental pollution

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210448A (en) * 1987-09-30 1989-06-07 Tiong Ee Ong Cooker hood with oil extraction
US5395410A (en) * 1993-12-21 1995-03-07 Jang; Sun-Sing Fume exhauster
CN2348289Y (en) * 1998-10-28 1999-11-10 卞应元 Cooking fume collecting air exhauster
CN105545771A (en) * 2016-01-31 2016-05-04 佛山市顺德区合捷电器实业有限公司 Centrifugal fan module used for range hood
CN205842814U (en) * 2016-07-14 2016-12-28 黄震 A kind of smoke exhaust ventilator reducing environmental pollution

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