CN108266770B - Range hood with oil smoke subassembly in various temperature fields - Google Patents
Range hood with oil smoke subassembly in various temperature fields Download PDFInfo
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- CN108266770B CN108266770B CN201810188656.9A CN201810188656A CN108266770B CN 108266770 B CN108266770 B CN 108266770B CN 201810188656 A CN201810188656 A CN 201810188656A CN 108266770 B CN108266770 B CN 108266770B
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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
- F24C15/2035—Arrangement or mounting of filters
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Abstract
A range hood with a plurality of temperature field oil smoke subassemblies is provided with a range hood main body and an oil smoke subassembly, and the oil smoke subassembly is assembled in the interior of the range hood main body. The oil smoke subassembly is provided with a main device part and a cooling body with a heat conduction coefficient different from that of the main device part, and the cooling body is fixedly assembled on the surface of the main device part. The oil smoke subassembly of the range hood is made of various materials with different heat conductivity coefficients, so that the range hood has different temperature fields, and the oil smoke is rapidly condensed, so that the oil collecting capacity is greatly improved. Meanwhile, the oil smoke subassembly also generates additional centrifugal force to oil smoke gas, so that oil smoke particles can be effectively removed, the contact of the gas containing a large amount of oil smoke particles and a wind wheel can be avoided, the oil smoke particle separation effect is greatly improved, and the noise generated by oil stain accumulated by the wind wheel is reduced.
Description
Technical Field
The invention relates to the field of range hoods, in particular to a range hood with oil smoke subassemblies of various temperature fields.
Background
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 oil fume is separated only by the centrifugal force generated by the rotation of the wind wheel, the separation effect is low, only a small part of oil fume particles can be removed, and a large amount of oil fume particles are remained in discharged gas, so that air pollution is caused.
Therefore, aiming at the defects of the prior art, the range hood with the oil smoke subassembly with various temperature fields is provided to solve the defects of the prior art.
Disclosure of Invention
The invention aims to avoid the defects of the prior art and provide a range hood with oil smoke sub assemblies in various temperature fields. The range hood with the oil smoke subassembly with various temperature fields has different temperature fields, and oil smoke is rapidly condensed, so that the oil collecting capacity is greatly improved.
The above object of the present invention is achieved by the following technical means.
The utility model provides a take lampblack absorber of multiple temperature field oil smoke subassembly, be provided with cigarette machine main part and oil smoke subassembly, the oil smoke subassembly assembles in the inside of cigarette machine main part.
The oil smoke subassembly is provided with a main device part and a cooling body with a heat conduction coefficient different from that of the main device part, and the cooling body is fixedly assembled on the surface of the main device part.
Preferably, the cooling body is a metal cooling body.
More preferably, the metal cooling member is at least one of a stainless steel member, an iron member, a copper member, and an aluminum member.
Preferably, the device host is a carbon fiber device host, a nylon device host, a PBT device host, or an IXEF composite device host.
Preferably, above-mentioned device main part is provided with many concentric tubes of axis coincidence, rotation axis and a plurality of eaves portion structure, 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 that corresponds, and a plurality of eaves portion structures are contained angle fixed connection with the concentric tube that corresponds, and the rotation axis is connected with the motor drive of cigarette machine main part.
The side, facing the ground when the oil smoke subassembly is installed, of the oil smoke subassembly is defined as the lower side, and concentric pipes which are outward from the 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 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 oil smoke subassembly is further provided with a vortex generating device group, the vortex generating device group is fixedly installed on the outer surface of the concentric tubes and surrounds the joint of the cornice structure and the concentric tubes, and the vortex generating device group 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 cooling body is fixedly attached to a surface of the vortex generating device group.
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 eave structure is provided with a plurality of through holes.
Preferably, the concentric tubes are provided with turbulators which are seamlessly connected around the ends of the concentric tubes at one end.
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, at least one eave structure is fixedly connected to the other end of the concentric tube.
Preferably, the range hood main body is provided with a shell, an oil collecting device and an air draft assembly, the oil smoke subassembly is rotatably installed inside the shell, the air draft assembly is fixedly assembled inside the shell, and the oil collecting device is assembled at the bottom of 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, above-mentioned convulsions subassembly is provided with fan, wind wheel and spiral case, and the fan assembles inside the spiral case, and the wind wheel is connected with the fan transmission, and spiral case fixed mounting communicates with each other with the gas outlet of concentric pipe top in the inside air inlet of spiral case of cigarette machine main part, and the gas outlet of spiral case communicates with each other with the gas outlet of cigarette machine main part.
Preferably, the housing is a spherical housing.
The invention discloses a range hood with oil smoke subassembly components in various temperature fields. The oil smoke subassembly is provided with a main device part and a cooling body with a heat conduction coefficient different from that of the main device part, and the cooling body is fixedly assembled on the surface of the main device part. The oil smoke subassembly of the range hood is made of various materials with different heat conductivity coefficients, so that the range hood has different temperature fields, and the oil smoke is rapidly condensed, so that the oil collecting capacity is greatly improved. Meanwhile, the oil smoke subassembly also generates additional centrifugal force to oil smoke gas, so that oil smoke particles can be effectively removed, the contact between the gas containing a large amount of oil smoke particles and the wind wheel can be avoided, the oil smoke particle separation effect is greatly improved, and the noise generated by the oil stain accumulated by the wind wheel is reduced.
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 a range hood embodiment 1 with a plurality of temperature field oil smoke subassembly according to the present invention.
Fig. 2 is a schematic view of the smoke subassembly of fig. 1.
Fig. 3 is a highly schematic view of the concentric tubes of fig. 2.
Fig. 4 is an external view of the housing and the oil collector of the present invention.
Fig. 5 is a simulation diagram of the flow of soot body gas according to the present invention.
Fig. 6 is a sectional perspective view of the oil smoke separating assembly.
In fig. 1 to 6, there are included:
the range hood comprises a lampblack subassembly 1, concentric pipes 11, a flow disturbing device 111, a rotating shaft 12, an eaves structure 13, a through hole 131, a vortex generating device group 14, a cooling body 15 and a vortex generating position 16;
the air-conditioning device comprises a shell 2, a shell air inlet 21, an annular sheet 22, an oil collecting device 3, a motor 4 and an air draft assembly 5.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1.
A range hood with oil smoke subassembly components in various temperature fields is provided with a range hood main body and an oil smoke subassembly component 1, wherein the oil smoke subassembly component 1 is assembled inside the range hood main body, as shown in figures 1 to 4. The cooking fume subassembly 1 is provided with a main part of the device and a cooling body 15 having a thermal conductivity different from that of the main part of the device, and the cooling body 15 is fixedly mounted on a surface of the main part of the device. The cooling body 15 is a metal cooling body 15.
The metal cooling body 15 of the present embodiment is preferably a stainless steel body, and the metal cooling body 15 may be one or more of a stainless steel body, an iron body, a copper body, or an aluminum body.
The device main part of the embodiment may be preferably a carbon fiber device main part, and the device main part may also be a nylon device main part, a PBT device main part, or an IXEF composite device main part, and the specific implementation manner is determined by the actual situation.
Device main part is provided with many concentric tubes 11 of axis coincidence, rotation axis 12 and a plurality of eaves portion structure 13, rotation axis 12 respectively with the fixed connection of many concentric tubes 11's one end, a plurality of eaves portion structures 13 respectively with encircle in the other end of concentric tubes 11, a plurality of eaves portion structures 13 are contained angle fixed connection with the concentric tube 11 that corresponds, rotation axis 12 is connected with the motor 4 transmission of cigarette machine main part.
The side, facing the ground when the oil smoke subassembly 1 is installed, of the oil smoke subassembly is defined as the lower side, and concentric tubes 11 outwards from a central axis 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.
Height of the 1 st concentric tube is H 1 Said i Content 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 lampblack subassembly 1 is further provided with a vortex generating device group 14, the vortex generating device group 14 is fixedly installed on the outer surface of the concentric tubes 11 and surrounds the connection part of the cornice structure 13 and the concentric tubes 11, and the vortex generating device group 14 is installed on the upper surface of the cornice structure 13. 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. Each group 14 of vortex generating devices consists of one or more vortex generating sub-devices of the same eave structure 13.
The vortex generating device groups 14 are m, m is any positive integer larger than 0, and the m vortex generating device groups 14 are sequentially arranged on the outer surface of the concentric tube 11 from far away from the central axis to close to the central axis and surround the connection part of the eave structure 13 and the concentric tube 11.
N =3 in the present embodiment, that is, the concentric tubes 11 in the present embodiment are provided with 3. In this embodiment, m =2, that is, the vortex generating device group 14 is provided in 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 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 cooling body 15 is fixedly mounted on the surface of the vortex generating device group 14.
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 smoke subassembly 1 rotates, and separating the oil particles from the inside of the oil smoke subassembly 1, so that the oil smoke particle separation effect is greatly improved.
The concentric tubes 11 are provided with flow perturbation means 111, the flow perturbation means 111 being seamlessly surrounding the end connected to one end of the concentric tubes 11. The flow disturbance device 111 functions to generate a vortex flow of the soot gas, thereby improving the oil removing capability.
The concentric tube 11 is a concentric tube 11 formed by a plurality of broken lines surrounding the central axis, and the intersection position of two adjacent line segments of the inner wall of the concentric tube 11 is a vortex generation position 16, as shown in fig. 6. 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 and 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 5, 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 it can be known from the venturi effect that 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 pipe 11 connected with the ventilation assembly 5 is high, and the pressure at the air inlet of the concentric pipe 11 is low, thereby increasing the pressure difference between the air inlet of the concentric pipe 11 and the external environment, promoting the oil smoke gas to enter, and improving the oil absorption effect.
The other end of the concentric tubes 11 of the present invention may be fixedly connected with at least one eaves structure 13, or the other end of the concentric tubes 11 may be fixedly connected with only one eaves structure 13. The other end of the 1 st concentric tube of this embodiment is connected with two eaves structure 13. Two eaves portion structures 13 effects of 1 st concentric union coupling have 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 pressure differential of 11 inside and exterior spaces of concentric pipe.
The cigarette machine main part is provided with shell 2, oil collector 3 and convulsions subassembly 5, and oil smoke subassembly 1 rotation mounting is in the inside of shell 2, convulsions subassembly 5 fixed mounting in the inside of shell 2, oil collector 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 fins 22 are provided to generate a vortex when the soot gas enters the housing 2 and to prevent soot particles from being thrown out of the housing inlet 21 of the housing 2 to the outside space when the soot sub-assembly 1 is thrown out.
The air draft assembly 5 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 11, an air outlet of the volute is communicated with an air outlet of the cigarette machine main body, and the shell 2 is a spherical shell 2.
The working principle of the range hood is as follows: the range hood is started, the motor 4 drives the oil smoke subassembly 1, the wind wheel of the air exhaust subassembly 5 rotates simultaneously, oil smoke particles are separated by seven layers in the range hood, and finally, almost clean gas is exhausted from the air outlet again, as shown in fig. 5. 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 to enter the oil smoke subassembly 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 accumulation of the ring-shaped sheet 22, 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 ring-shaped sheet 22 to the oil collecting device 3.
Third layer separation, centrifugal separation: the eaves structure 13 rotates following the concentric tubes 11 creating a centrifugal force which interacts with the force of attraction of the wind wheel. After the second separation, the light oil smoke of remaining part contacts the outermost end of eaves portion structure 13 earlier and gets into concentric tube 11 again when getting into concentric tube 11, and the centrifugal force of eaves portion structure 13 outermost end can leave some fluid or oil smoke particle area or block and get into concentric tube 11 inside and move outward, throws away with higher tangential velocity again, and the particle of throwing away can fall at cyclic annular piece 22, flows to oil collecting device 3 along cyclic annular piece 22 at last.
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 131 to the adjacent eaves 13, and due to inertia, the oil smoke and other oil smoke particles will be gathered into larger oil smoke particles and flow downward, and due to centrifugal force, the oil smoke particles will be thrown out at a higher tangential speed and finally flow along the ring-shaped pieces 22 to the oil collecting device 3.
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, fluid or particles in the tube move towards the wall of the tube in a low-pressure area 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. When the attraction force and the centrifugal force are removed, the continuously rotating secondary vortex and the oil smoke which moves at the pipe wall in a high tangent line flow downwards along the inner pipe wall to be collected in the oil collecting device 3 due to gravity.
The sixth layer is separated, the spoiler 111 is separated: the flow disturbing device 111 at one end of the concentric tube 11 generates flow field separation on the remaining oil smoke, and the flow field separation can block part of the oil smoke from flowing upwards and capturing the oil smoke by the vortex which does not rotate automatically due to the instability of the flow field.
Seventh layer separation, wind wheel centrifugal separation: after the first six layers of separation, a small amount of very light oil smoke particles are left and sucked into the wind wheel of the air draft assembly 5 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.
The oil smoke subassembly 1 of the range hood is made of various materials with different heat conductivity coefficients, so that the range hood has different temperature fields, and the oil smoke is rapidly condensed, so that the oil collecting capacity is greatly improved. Meanwhile, the oil smoke subassembly 1 generates additional centrifugal force to oil smoke gas, can effectively remove oil smoke particles, can avoid the contact of the gas containing a large amount of oil smoke particles and the wind wheel, greatly improves the separation effect of the oil smoke particles and reduces the noise generated by the oil stain accumulated by the wind wheel.
Example 2.
A range hood with oil smoke subassemblies of various temperature fields has the same other characteristics as embodiment 1, and is different in that: the metal cooling member 15 of the present embodiment is preferably a copper member.
The copper body of this example had a thermal conductivity of 377W/m.K, while the stainless steel body of example 1 had a thermal conductivity of only 16W/m.K. The coefficient of heat conductivity of the copper body is far higher than that of the stainless steel body, so that the range hood of the embodiment can condense oil smoke more quickly, and the oil collecting capacity is higher.
Example 3.
A range hood with oil smoke subassemblies of various temperature fields has the same other characteristics as embodiment 1, and is different in that: n =4 in the present embodiment, i.e., 4 concentric tubes 11 in the present embodiment are provided. In this embodiment, m =2, that is, the vortex generating device group 14 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 11 of this embodiment correspond one-to-one to the eave structures 13.
Compared with embodiment 1, the range hood with the oil smoke subassembly with multiple temperature fields has the advantages that one concentric tube 11 is increased, namely, the space volume of the oil smoke subassembly 1 inside the shell 2 is increased, so that the area of an air inlet of the concentric tube 11 is reduced, the gas inlet speed is increased, the pressure difference between the inside of the concentric tube 11 and the outside space is increased, and the separation rate of oil smoke particles can be increased.
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. A take lampblack absorber of multiple temperature field oil smoke subassembly which characterized in that: the range hood is provided with a range hood main body and a lampblack subassembly, wherein the lampblack subassembly is assembled inside the range hood main body;
the oil smoke subassembly is provided with a main device part and a cooling body with a heat conductivity coefficient different from that of the main device part, and the cooling body is fixedly assembled on the surface of the main device part;
the oil smoke subassembly 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 pipe and surrounds the joint of the eaves structure and the concentric pipe, 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;
the cooling body is fixedly assembled on the surface of the vortex generating device group;
the smoke machine main body is provided with a shell, the smoke subassembly is rotatably arranged in the shell, the shell is provided with a plurality of shell air inlets and annular sheets matched with the shell air inlets, the annular sheets are fixedly arranged 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.
2. A range hood with multiple temperature field cooking fume subassemblies as recited in claim 1, wherein: the cooling body is a metal cooling body.
3. A range hood with multiple temperature field cooking fume subassemblies as recited in claim 2, wherein: the metal cooling body is at least one of a stainless steel body, an iron body, a copper body or an aluminum body.
4. A range hood with multiple temperature field cooking fume subassemblies as claimed in claims 2 or 3, wherein: the device main portion is a carbon fiber device main portion, a nylon device main portion, a PBT device main portion, or an IXEF composite device main portion.
5. A range hood with multiple temperature field cooking fume subassemblies as recited in claim 4, wherein: device main part is provided with many concentric tubes, rotation axis and a plurality of eaves portion structure of axis coincidence, and the rotation axis is respectively with the fixed connection of many concentric tubes's one end, and a plurality of eaves portion structures are around setting up and fixed mounting in the other end that corresponds, and a plurality of eaves portion structures are contained angle fixed connection with the concentric tube that corresponds, and the rotation axis is connected with the motor drive of cigarette machine main part.
6. A range hood with multiple temperature field cooking fume subassemblies as recited in claim 5, wherein: defining one side of the oil smoke subassembly, which faces the ground when the oil smoke subassembly 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 The height of the ith concentric tube is H i Content 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 。
7. A range hood with multiple temperature field cooking fume subassemblies as recited in claim 6, wherein: the vortex generating device groups are arranged in number m, wherein m is any positive integer larger than 0, and the m vortex generating device groups are respectively and fixedly arranged on the outer surface of the concentric tube and surround the connection part of the eaves part structure and the concentric tube.
8. A range hood with multiple temperature field cooking fume subassemblies as recited in claim 7, wherein: the eaves structure is provided with a plurality of through holes;
the concentric tubes are provided with turbulence devices, and the turbulence devices are connected to the tail ends of one ends of the concentric tubes in a seamless surrounding manner;
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 tubes is fixedly connected with at least one eaves structure.
9. A range hood with multiple temperature field cooking fume subassemblies as claimed in any one of claims 1 to 8, wherein: the range hood main body is provided with an oil collecting device and an air draft assembly, the air draft assembly is fixedly assembled inside the shell, and the oil collecting device is assembled at the bottom of the shell;
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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| JPH02146442A (en) * | 1988-11-28 | 1990-06-05 | Matsushita Electric Ind Co Ltd | Smoke discharging device |
| CN101156660A (en) * | 2006-10-03 | 2008-04-09 | 株式会社东芝 | Heating cooking machine and cooking method of adding vitamin C |
| CN101249353A (en) * | 2008-04-02 | 2008-08-27 | 王君 | Cooking fume purifier |
| CN101581455A (en) * | 2009-05-06 | 2009-11-18 | 浙江工业大学 | Energy-saving stove |
| CN203274005U (en) * | 2013-04-18 | 2013-11-06 | 武汉力诺王力科技有限公司 | Magnetic oil fume purification and separation device |
| CN106455582A (en) * | 2014-03-12 | 2017-02-22 | 康威瑟姆家电公司 | Steam sensor for cooking devices |
| CN107726409A (en) * | 2017-11-27 | 2018-02-23 | 佛山市云米电器科技有限公司 | A kind of high efficiency on-plane surface lampblack absorber |
| CN107726414A (en) * | 2017-11-27 | 2018-02-23 | 佛山市云米电器科技有限公司 | A kind of smoke exhaust ventilator with axial-flow type wind wheel |
| CN107741045A (en) * | 2017-11-27 | 2018-02-27 | 佛山市云米电器科技有限公司 | A kind of lampblack absorber of band active noise reduction function |
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|---|---|
| CN108266770A (en) | 2018-07-10 |
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