CN108167904B - Inside air current evenly distributed formula lampblack absorber - Google Patents
Inside air current evenly distributed formula lampblack absorber Download PDFInfo
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- CN108167904B CN108167904B CN201810188646.5A CN201810188646A CN108167904B CN 108167904 B CN108167904 B CN 108167904B CN 201810188646 A CN201810188646 A CN 201810188646A CN 108167904 B CN108167904 B CN 108167904B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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Abstract
The utility model provides an inside air current evenly distributed formula lampblack absorber, is provided with cigarette machine main part and makes inside air current evenly distributed's oil smoke separator, and oil smoke separator transmission is installed inside the cigarette machine main part. The oil smoke separator is provided with many concentric tubes of axis coincidence and a plurality of eaves portion structure that is used for separating the air current, and a plurality of eaves portion structures are to encircle setting up and fixed mounting in the other end of the concentric tube that corresponds, and the one end of many concentric tubes is fixed connection and transmission each other and installs inside the cigarette machine main part. The level at which each eaves structure is mounted is unequal. This eaves portion structure of inside air current evenly distributed lampblack absorber can evenly get into the inside deoiling of concentric tube with the air current of gathering to improve whole deoiling ability. Meanwhile, the oil fume separator of the range hood with the uniformly distributed multiple internal airflows can generate additional centrifugal force, can effectively remove oil fume particles, prevents the oil fume particles from entering the air draft assembly, can prevent air containing the oil fume particles from contacting with the wind wheel, and greatly improves the separation effect of the oil fume particles.
Description
Technical Field
The invention relates to the field of range hoods, in particular to a range hood with uniformly distributed internal airflow.
Background
The fume exhauster is also called as fume exhauster, and is a kitchen electric appliance for purifying kitchen environment. The range hood is arranged above a kitchen stove, can rapidly pump away wastes burnt by the stove and oil smoke harmful to human bodies generated in the cooking process, and exhaust the wastes and the oil smoke to the outside, reduces pollution, purifies air, and has the safety guarantee effects of gas defense and explosion prevention.
In the prior art, the range hood has three forms of top suction, side suction and lower discharge. However, the three kinds of range hoods make the gas directly enter the volute through the wind pipe by means of the rotation of the wind wheel, and the distribution of the generated gas flow is uneven, so that the gas with a large amount of residual oil smoke particles is easily discharged out of the external environment to pollute the environment.
Therefore, aiming at the defects of the prior art, the range hood with the uniformly distributed internal airflow 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 provide the range hood with uniformly distributed internal airflow. This inside air current evenly distributed lampblack absorber has the advantage of carrying out the oil.
The above object of the present invention is achieved by the following technical means.
The utility model provides an inside air current evenly distributed formula lampblack absorber is provided with cigarette machine main part and the oil smoke separator that makes inside air current evenly distributed, and oil smoke separator transmission is installed inside cigarette machine main part.
Preferably, above-mentioned oil smoke separator is provided with many concentric tubes of axis coincidence and a plurality of eaves portion structure that are used for separating the air current, and a plurality of eaves portion structures are to encircle the setting and fixed mounting in the other end of the concentric tube that corresponds, and the one end of many concentric tubes is fixed connection and transmission each other and installs inside cigarette machine main part.
The level at which each eaves structure is mounted is unequal.
The side, facing the ground when the oil fume separator is installed, of the oil fume separator is defined as the lower side, and concentric tubes from the middle shaft to the outside are sequentially defined as a 1 st concentric tube, an i concentric tube, an n-1 concentric tube and an n concentric tube, wherein i is more than or equal to 2 and less than or equal to n, and n is a positive integer.
Preferably, the horizontal height of the eaves structure fixedly connected with the other end of the n-th concentric tube and the eaves structure fixedly connected with the other end of the n-1-th concentric tube is D, and D is more than or equal to 5mm and less than or equal to 300mm.
The other end of each concentric tube is fixedly connected with at least one eaves structure.
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.
Preferably, 1.1H mentioned above n ≤H i ≤10H n And 0.5H i-1 ≤H i ≤3H i-1 。
Preferably, the eave structure is provided with a plurality of through holes.
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 above oil smoke separator is further provided with a vortex generating device set, the vortex generating device set is fixedly installed 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 set is installed 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.
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, the concentric tube is formed by a line segment formed by a plurality of broken lines surrounding the middle shaft for one circle, 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, above-mentioned cigarette machine main part is provided with shell, convulsions subassembly and oil collecting device, and the shell assembly is in the surface of cigarette machine main part, and the transmission of oil smoke separator is installed in the inside of shell, and the fixed assembly of convulsions subassembly is in the inside top that just is located oil smoke separator of shell, and oil collecting device assembles the bottom in the 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 oil smoke separator is provided with a rotating shaft, the rotating shaft is fixedly connected with one end of each of the concentric tubes, and the rotating shaft is in transmission connection with a motor of the cigarette machine main body.
Preferably, the air draft assembly is provided with a fan, a wind wheel and a volute, the fan is assembled inside the volute, the wind wheel is in transmission connection with the fan, the volute is fixedly installed inside the cigarette machine main body, 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.
Preferably, the housing is a spherical housing.
The invention relates to a range hood with uniformly distributed internal airflow, which is provided with a range hood main body and an oil-smoke separator for uniformly distributing the internal airflow, wherein the oil-smoke separator is arranged in the range hood main body in a transmission way. The oil smoke separator is provided with many concentric tubes of axis coincidence and a plurality of eaves portion structure that is used for separating the air current, 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 one end fixed connection and the transmission of each other of many concentric tubes are installed inside the cigarette machine main part. The level at which each eave structure is mounted is unequal. This eaves portion structure of inside air current evenly distributed lampblack absorber can evenly get into the inside deoiling of concentric tube with the air current of gathering to improve whole deoiling ability. Meanwhile, the oil fume separator of the range hood with the uniformly distributed multiple internal air flows can generate additional centrifugal force, can effectively remove oil fume particles, prevents the oil fume particles from entering the air draft assembly, can prevent air containing the oil fume particles from contacting a wind wheel, and greatly improves the separation effect of the oil fume particles.
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 with an internal airflow uniformly distributed according to the present invention.
Fig. 2 is a schematic structural view of the oil smoke separator in fig. 1.
Fig. 3 is a schematic horizontal height D of the eaves structure of the nth concentric tube and the eaves structure of the (n-1) th concentric tube of the soot separator in fig. 1.
Fig. 4 is a highly schematic view of the concentric tubes of fig. 2.
Fig. 5 is a schematic structural diagram of the housing and the oil collecting device.
Fig. 6 is a simulated oil smoke gas flow diagram of the present invention.
Fig. 7 is a sectional perspective view of the soot separator.
In fig. 1 to 7, there are included:
a lampblack separator 1, a concentric tube 11, a spoiler 111, a rotating shaft 12, an eave structure 13, a through hole 131, a vortex generating device group 14, a vortex generating position 15,
The oil collecting device comprises a shell 2, a shell air inlet 21, an annular sheet 22, an oil collecting device 3 and a motor 4.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1.
A range hood with uniformly distributed internal airflow is provided with a range hood main body and an oil smoke separator 1 which enables the internal airflow to be uniformly distributed, wherein the oil smoke separator 1 is installed inside the range hood main body in a transmission mode, as shown in figures 1 to 7.
The purpose of the unequal level of each eaves structure 13 is to provide a more even distribution of the airflow rate.
The side, facing the ground when the oil fume separator 1 is installed, of the oil fume separator is defined as the lower side, and concentric tubes 11 outwards from a middle shaft are sequentially defined as a 1 st concentric tube, an i concentric tube, an n-1 concentric tube and an n concentric tube, wherein i is more than or equal to 2 and less than or equal to n, and n is a positive integer.
The horizontal height of the eaves structure 13 fixedly connected with the other end of the n-th concentric tube and the eaves structure 13 fixedly connected with the other end of the n-1-th concentric tube is D, preferably D is 50mm, and D can be any value within the range of 5 mm-300 mm, and the specific situation is determined. The other end of each concentric tube 11 is fixedly connected with at least one eaves structure 13.
The horizontal height D of the eaves structure 13 fixedly connected with the other end of the n-th concentric tube and the eaves structure 13 fixedly connected with the other end of the n-1-th concentric tube is too high, so that the space between the n-th concentric tube and the n-1-th concentric tube is increased, the air flow speed of the part of space entering the n-th concentric tube is reduced, the pressure difference between the n-th concentric tube and the external space is reduced, and the effect of the range hood is influenced.
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. 1.1H n ≤H i ≤10H n And 0.5H i-1 ≤H i ≤3H i-1 。
The eave structure 13 is provided with a plurality of through holes 131. The through holes 131 are used for gathering large oil particles when the oil fume separator 1 rotates, and the oil particles are separated from the inside of the oil fume separator 1, so that the separation effect of the oil fume particles is greatly improved.
The concentric tubes 11 are provided with flow perturbation means 111, the flow perturbation means 111 being connected seamlessly around the end of one end of the concentric tubes 11. The turbulence device 111 functions to generate a vortex flow of the soot gas, thereby improving the oil removing capability.
The oil smoke separator 1 is further provided with an eddy current generating device group 14, the eddy current generating device group 14 is fixedly installed on the outer surface of the concentric tube 11 and surrounds the joint of the cornice structure 13 and the concentric tube 11, and the eddy current generating device group 14 is installed on the upper surface of the cornice structure 13. Each group 14 of vortex generating devices consists of one or more vortex generating sub-devices of the same eaves structure 13.
The number of the vortex generating device groups 14 is m, m is any positive integer larger than 0, and the m vortex generating device groups 14 are respectively and fixedly installed on the outer surface of the concentric pipe 11 and surround the joint of the eaves structure 13 and the concentric pipe 11.
N =3 in the present embodiment, that is, 3 concentric tubes 11 in the present embodiment are provided. In the present embodiment, m =2, that is, the vortex generating device group 14 is provided in 2, one is provided in the 3 rd concentric tube 11, and the other is provided in the 2 nd concentric tube. The number of concentric tubes 11 of the present invention can be any positive integer, and the set of vortex generating devices 14 can be less than or equal to any positive integer number of concentric tubes 11. The vortex generating device group 14 of the present invention is used for generating vortex for the oil smoke gas, thereby improving the oil removing capability.
The concentric tube 11 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 11 is a vortex generation position 15. The shape of the concentric tube 11 of the invention has the function of enabling the oil smoke gas to generate vortex on the inner wall of the concentric tube 11, thereby improving the efficiency of removing the oil smoke.
The diameter of one end of the concentric tube 11 is larger than the diameter of the other end. One end of the concentric tube 11 is the end connected with the air draft assembly, namely the air outlet of the concentric tube 11, the other end of the concentric tube 11 is the air inlet of the concentric tube 11, and according to the venturi effect, the larger the area through which the fluid flows, the smaller the flow rate is, namely, the speed of one end of the gas concentric tube 11 is higher than the speed of the other end of the concentric tube 11. According to bernoulli's law, the higher the speed of the gas, the lower the pressure, so the pressure at the end of the concentric tube 11 connected with the air draft assembly is high, and the pressure at the air inlet of the concentric tube 11 is low, thereby increasing the pressure difference between the air inlet of the concentric tube 11 and the external environment, so as to promote the oil smoke gas to enter, and improve the oil absorption effect.
The cigarette machine main part is provided with shell 2, convulsions subassembly and oil collecting device 3, and shell 2 assembles in the surface of cigarette machine main part, and the transmission of oil smoke separator 1 is installed in the inside of shell 2, and the fixed assembly of convulsions subassembly is in the inside top that just is located oil smoke separator 1 of shell 2, 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 soot gas enters the housing 2, and to prevent soot particles from being thrown out of the outer space from the housing inlet 21 of the housing 2 when the soot particles are thrown out of the soot separator 1.
The oil smoke separator 1 is provided with a rotating shaft 12, the rotating shaft 12 is fixedly connected with one end of each of the concentric tubes 11, and the rotating shaft 12 is in transmission connection with the motor 4 of the cigarette machine main body.
The air draft assembly is provided with a fan, a wind wheel and a volute, the fan is assembled inside the volute, the wind wheel is in transmission connection with the fan, the volute is fixedly installed at the air inlet of the volute inside the cigarette machine main body and communicated with the air outlet above the concentric pipe 11, and the air outlet of the volute is communicated with the air outlet of the cigarette machine main body. The housing 2 of the present invention is a spherical housing 2.
The working principle of the range hood is as follows: the range hood is started, the motor 4 drives the oil fume separator 1, the wind wheel of the air draft assembly rotates simultaneously, oil fume particles are separated in seven layers in the range hood, and finally the oil fume 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: lampblack enters the interior of the range hood through the shell air inlet 21 of the shell 2, and 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 and enter the oil smoke separator 1 after flowing downwards along the ring-shaped sheet 22, so that the heavier oil moves downwards separately from the crude oil smoke flow field in the downward inertial motion and is collected in the oil collecting 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 the vortex flow and the adjacent flow field or the vortex flow are mutually influenced mutually, a continuously rotating flow field is formed on the annular sheet 22, and the rotating vortex flow reaches the maximum vortex quantity. 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 13 following the concentric tubes 11 creates a centrifugal force that interacts with the attractive force of the wind wheel. After the second separation, the remaining lighter oil smoke contacts the outermost end of the eaves structure 13 before entering the concentric tube 11, the centrifugal force at the outermost end of the eaves structure 13 can separate or block the partial fluid or oil smoke particles from the concentric tube 11 and move outwards, and then the particles are thrown away at a higher tangential speed, and the thrown particles can fall on the annular sheet 22, and finally the oil smoke flows 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 to the adjacent eaves structure 13 through the through holes 131, and will be gathered with other oil smoke or oil smoke particles into larger oil smoke particles to flow downward due to the inertia effect, and the oil smoke particles will be thrown out at a higher tangential speed due to the centrifugal force effect and finally flow to the oil collecting device 3 along the ring-shaped pieces 22.
Fifth layer separation, cyclonic centrifugal force and secondary vortex generation of concentric tubes 11: the inner wall of the concentric tube 11 rotates to form a cyclone, the concentric tube 11 is a low-pressure area, fluid or particles in the tube move towards the wall of the tube 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 rotate without stopping, so that the oil smoke is captured and is not allowed to 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 spoiler 111 is separated: the turbulence device 111 at one end of the concentric tube 11 generates flow field separation on the remaining oil smoke, and by means of the flow field separation, part of the oil smoke is blocked by instability of the flow field and does not flow upwards or capture the oil smoke by a self-rotating vortex.
Separating a seventh layer, and separating a wind wheel by centrifugal force: after the separation of the first six layers, a small amount of very light oil smoke particles are left and sucked into the wind wheel of the air draft assembly due to pressure difference, the rotating wind wheel forms centrifugal force to throw the remaining small amount of oil smoke particles onto the inner wall of the fan, and finally nearly clean gas is discharged outside through the air outlet.
This inside air current evenly distributed lampblack absorber's eaves portion structure 13 can evenly get into the inside deoiling of concentric tube 11 with the air current of gathering to improve whole deoiling ability. Meanwhile, the oil fume separator 1 of the range hood with the uniformly distributed multiple internal airflows can generate additional centrifugal force, can effectively remove oil fume particles, prevents the oil fume particles from entering the air draft assembly, can prevent air containing the oil fume particles from contacting a wind wheel, and greatly improves the separation effect of the oil fume particles.
Example 2.
A range hood with uniformly distributed internal airflow has the same other characteristics as embodiment 1, except that: the horizontal height D of the eaves structure 13 fixedly connected with the other end of the n-th concentric tube and the eaves structure 13 fixedly connected with the other end of the n-1-th concentric tube is 30mm.
Compared with the embodiment 1, the horizontal height D of the eaves structure 13 fixedly connected with the other end of the n-th concentric tube and the eaves structure 13 fixedly connected with the other end of the n-1-th concentric tube is smaller, the space between the n-th concentric tube and the n-1-th concentric tube is smaller, the air flow speed entering the inside of the n-th concentric tube is improved, the pressure difference between the n-th concentric tube and the external space is increased, and therefore the effect of the range hood is improved.
Example 3.
The utility model provides an inside air current evenly distributed lampblack absorber, other characteristics are the same with embodiment 1, the difference lies in: n =4 for the present embodiment, i.e. 4 concentric tubes 11 for the present embodiment are provided. In the present embodiment, m =2, that is, the vortex generating device group 14 is provided in 2, one is provided in the 4 th concentric tube 11, and the other is provided in the 3 rd concentric tube 11. While the concentric tubes 11 of this embodiment correspond one-to-one to the eave structures 13.
This inside air current evenly distributed lampblack absorber compares with embodiment 1, has increased a concentric tube 11, has also increased oil smoke separator 1 in the inside space volume of shell 2 to reduce the area of 11 air inlets of concentric tube, improved gaseous admission speed, increase the pressure differential of 11 inside and outside spaces of concentric tube, thereby can improve the separation rate of oil smoke particle.
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 an inside air current evenly distributed lampblack absorber which characterized in that: the range hood is provided with a range hood main body and an oil smoke separator which enables internal airflow to be uniformly distributed, and the oil smoke separator is arranged in the range hood main body in a transmission way;
the oil fume separator is provided with a plurality of concentric tubes with coincident center axes and a plurality of eaves structures for separating air flow, the eaves structures are arranged in a surrounding manner and fixedly installed at the other ends of the corresponding concentric tubes, and one ends of the concentric tubes are mutually fixedly connected and are installed in the smoke machine main body in a transmission manner; the horizontal height of each eave structure when installed is unequal;
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 oil fume separator is also provided with an eddy current generating device group, the eddy current generating device group is fixedly arranged on the outer surface of the concentric tube and surrounds the joint of the eaves structure and the concentric tube, and the eddy current generating device group is arranged on the 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.
2. The range hood with the uniformly distributed internal airflow, according to claim 1, wherein: defining one side of the oil fume separator, which faces the ground when the oil fume separator is installed, as a lower part, and sequentially defining concentric pipes from a middle shaft to the outside as a 1 st concentric pipe, an i concentric pipe, an n-1 concentric pipe and an n concentric pipe, wherein i is more than or equal to 2 and less than or equal to n, and n is a positive integer;
the horizontal height of the eaves structure fixedly connected with the other end of the nth concentric tube and the eaves structure fixedly connected with the other end of the (n-1) th concentric tube is D, and D is more than or equal to 5mm and less than or equal to 300mm.
3. The range hood with the uniformly distributed internal airflow according to claim 2, wherein: the other end of each concentric tube is fixedly connected with at least one eaves structure.
4. The range hood with the uniformly distributed internal airflow according to claim 3, wherein: 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.
5. The range hood with the uniformly distributed internal airflow according to claim 4, wherein: the 1.1H n ≤H i ≤10H n And 0.5H i-1 ≤H i ≤3H i-1 。
6. The range hood with the uniformly distributed internal airflow according to claim 5, wherein: the eaves structure is provided with a plurality of through-holes.
7. The range hood with the uniformly distributed internal airflow, according to claim 6, wherein: the vortex generating device groups are provided with m vortex generating device groups, wherein m is any positive integer larger than 0, and the m vortex generating device groups are respectively fixedly arranged on the outer surfaces of the concentric tubes and surround the connection part of the eaves part structure and the concentric tubes;
the concentric tube is formed by a line segment consisting of a plurality of broken lines surrounding the center shaft for one 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 tubes is larger than the diameter of the other end.
8. The range hood with the uniformly distributed internal airflow, according to claim 7, wherein: the range hood main body is provided with a shell, an air draft assembly and an oil collecting device, the shell is assembled on the outer surface of the range hood main body, the oil smoke separator is installed inside the shell in a transmission mode, the air draft assembly is fixedly assembled inside the shell and located above the oil smoke separator, 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 the cyclic annular piece that matches with a plurality of shell air inlets, cyclic annular piece fixed mounting or integrated connection in the internal surface that the shell corresponds and with be located the edge of shell air inlet, cyclic annular piece and shell air inlet one-to-one.
9. The range hood with the uniformly distributed internal airflow according to claim 8, wherein: the oil smoke separator is provided with a rotating shaft, the rotating shaft is respectively and fixedly connected with one end of the concentric tubes, and the rotating shaft is in transmission connection with a motor of the cigarette machine main body;
the air exhaust assembly is provided with a fan, a wind wheel and a volute, the fan is assembled inside the volute, the wind wheel is in transmission connection with the fan, the volute is fixedly installed inside the cigarette machine main body, 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 shell is a spherical shell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810188646.5A CN108167904B (en) | 2018-03-07 | 2018-03-07 | Inside air current evenly distributed formula lampblack absorber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188646.5A CN108167904B (en) | 2018-03-07 | 2018-03-07 | Inside air current evenly distributed formula lampblack absorber |
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Citations (4)
| 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 |
| CN205026767U (en) * | 2015-07-24 | 2016-02-10 | 黄耀栋 | Fume purifying device |
| CN205842814U (en) * | 2016-07-14 | 2016-12-28 | 黄震 | A kind of smoke exhaust ventilator reducing environmental pollution |
-
2018
- 2018-03-07 CN CN201810188646.5A patent/CN108167904B/en active Active
Patent Citations (4)
| 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 |
| CN205026767U (en) * | 2015-07-24 | 2016-02-10 | 黄耀栋 | Fume purifying device |
| CN205842814U (en) * | 2016-07-14 | 2016-12-28 | 黄震 | A kind of smoke exhaust ventilator reducing environmental pollution |
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| CN108167904A (en) | 2018-06-15 |
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