CN108180526B - Non-planar range hood - Google Patents
Non-planar range hood Download PDFInfo
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- CN108180526B CN108180526B CN201810188671.3A CN201810188671A CN108180526B CN 108180526 B CN108180526 B CN 108180526B CN 201810188671 A CN201810188671 A CN 201810188671A CN 108180526 B CN108180526 B CN 108180526B
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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
A non-planar range hood is provided with a range hood main body, an oil smoke separator capable of separating oil smoke particles and a non-planar shell, wherein the non-planar shell is assembled on the outer surface of the range hood main body, and the oil smoke separator is assembled inside the non-planar shell. The outer surface of the non-planar range hood is used as a guide surface of the oil smoke moving direction instead of forming a covering area for gathering the oil smoke, and meanwhile, the oil smoke removing effect can be greatly improved. Meanwhile, the oil smoke separation component also 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 accumulated oil stain of the wind wheel.
Description
Technical Field
The invention relates to the field of range hoods, in particular to a non-planar range hood.
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.
Most of range hoods in the prior art are of a planar structure, so that a hood area for gathering oil smoke is formed, the range hood can surround the oil smoke to improve the oil absorption effect, but the range hood with the shape inevitably increases the width and is not attractive. 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, the working efficiency of the wind wheel is seriously influenced, and the integral smoking effect is reduced.
Therefore, aiming at the defects of the prior art, it is necessary to provide a non-planar range hood to solve the defects of the prior art.
Disclosure of Invention
The invention aims to provide a non-planar range hood to avoid the defects of the prior art. The outer surface of the non-planar range hood is used as a guide surface of the oil smoke moving direction instead of forming a covering area for gathering the oil smoke, and meanwhile, the oil smoke removing effect can be greatly improved.
The above object of the present invention is achieved by the following technical means.
The non-planar range hood is provided with a range hood main body, an oil smoke separator capable of separating oil smoke particles and a non-planar shell, wherein the non-planar shell is assembled on the outer surface of the range hood main body, and the oil smoke separator is assembled inside the non-planar shell.
A plurality of air inlets are distributed on the non-planar shell.
The non-planar shell has a surface area S Non-planar housing The total area of the air inlet is S Air inlet ，0.1S Non-planar housing ≤S Air inlet ≤0.95S Non-planar housing 。
Superior food
Preferably, the outer surface of the non-planar housing serves as a guide surface in a moving direction of the soot, rather than forming a covering region for gathering the soot.
At least one air inlet is arranged at the position of the non-covering area of the non-plane shell.
The lampblack moves along the outer surface of the non-planar shell and is sucked into the interior of the main body of the range hood by at least one air inlet arranged in a non-covering area.
Preferably, the non-planar housing is provided with q air inlets.
The central point of each air inlet is P 0 、P 1 、……、P i 、……、P q-1 (ii) a Q is more than or equal to 2, i is more than or equal to 1 and less than or equal to q-1, i and q are positive integers, and a central point P at any position of the lowest central point of the air inlet is taken as a central point 0 And establishing a three-dimensional coordinate system for the origin.
In passing through P 0 And in a plane parallel to the horizontal plane, through P 0 And two mutually perpendicular straight lines are defined as X-axis and Y-axis, which will pass through P 0 And a line perpendicularly intersecting the X-axis and the Y-axis, respectively, is defined as a Z-axis, P 0 Coordinate in three-dimensional coordinate system is P 0 (X 0 ,Y 0 ,Z 0 )＝P 0 (0,0,0)。
Preferably, the coordinates of the central points of the q air inlets on the three-dimensional coordinate axis are P 0 (0,0,0)、P 1 (X 1 ,Y 1 ,Z 1 )、……、P i (X i ,Y i ,Z i )、……、P q-1 (X q-1 ,Y q-1 ,Z q-1 )，P 0 (0,0,0)≠P i (X i ,Y i ,Z i ) And P is i To P q-1 Has a Z-axis coordinate other than 0.
Preferably, the non-planar housing is further provided with q air inlet surfaces, the q air inlet surfaces are spliced to form the non-planar housing, and each air inlet surface is provided with a corresponding air inlet.
q air inlet surfaces are respectively defined as S 0 、S 1 、...、S i 、...、S q-1 Center point P of q air inlets 0 、P 1 、...、P i 、...、P q-1 Respectively at S 0 、S 1 、...、S i 、...、S q-1 。
The air inlet surface is in at least one of a plane structure or a non-plane structure, and any one air inlet surface is seamlessly spliced with other adjacent air inlet surfaces.
Optionally, the non-planar housing is further provided with annular pieces matching with the plurality of air inlets, the annular pieces are fixedly mounted or integrally connected to the corresponding inner surface of the non-planar housing and located at the edges of the air inlets, and the annular pieces correspond to the air inlets one to one.
Preferably, the included angle formed by the annular sheet and the tangent line of the edge of the corresponding air inlet is C, and C is more than or equal to 20 degrees and less than or equal to 70 degrees.
Preferably, above-mentioned oil smoke separator is provided with many concentric tubes, rotation axis and a plurality of eaves portion structure of axis coincidence, rotation axis respectively with the fixed connection of many concentric tubes's one end, a plurality of eaves portion structures are around setting up and fixed mounting in the other end of the concentric tube that corresponds, the rotation axis is connected with the motor drive of cigarette machine main part.
The side, facing the ground when the oil fume separator is installed, of the oil fume separator is defined as the lower part, and concentric pipes from the middle shaft to the outside are sequentially defined 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 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 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 pipes and surround the connecting part of the eaves structure and the concentric pipes.
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 eave structure is provided with a plurality of through holes.
Preferably, above-mentioned cigarette machine main part is provided with the convulsions subassembly, and the fixed assembly of convulsions subassembly is in the inside of non-planar shell and be located the top of oil smoke separator.
Preferably, the non-planar shell is further provided with a non-planar shell main body and an oil collecting device, the non-planar shell main body is assembled on the outer surface of the cigarette machine main body, the oil collecting device is assembled at the bottom of the non-planar shell main body, and the air inlet and the annular sheet are distributed on the non-planar shell 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.
The invention relates to a non-planar range hood which is provided with a range hood main body, an oil smoke separator capable of separating oil smoke particles and a non-planar shell, wherein the non-planar shell is assembled on the outer surface of the range hood main body, and the oil smoke separator is assembled inside the non-planar shell. A plurality of air inlets are distributed on the non-planar shell. The non-planar shell has a surface area S Non-planar housing The total area of the air inlet is S Air inlet ，0.1S Non-planar housing ≤S Air inlet ≤0.95S Non-planar housing . The outer surface of the non-planar range hood is used as a guide surface of the oil smoke moving direction instead of forming a covering area for gathering the oil smoke, and meanwhile, the oil smoke removing effect can be greatly improved. Simultaneously, the oil smoke separation assembly 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 a wind wheel, greatly improves the separation effect of the oil smoke particles and reduces 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 contents of which are not in any way limitative of the invention.
Fig. 1 is a schematic structural diagram of a non-planar range hood embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of the oil smoke separator in fig. 1.
Fig. 3 is a highly schematic view of the concentric tubes of fig. 2.
Fig. 4 is an external view of the non-planar housing of the present invention.
Fig. 5 is a schematic cross-sectional view of fig. 6.
Fig. 6 is an enlarged view of region Z in fig. 5.
Fig. 7 is a simulation diagram of the flow of soot body gas according to the present invention.
Fig. 8 is a sectional perspective view of the soot separator.
In fig. 1 to 8, 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,
A non-planar housing 2, a non-planar housing main body 21, an air inlet 211, an annular sheet 212, an oil collector 22,
A motor 3 and an air draft assembly 4.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1.
A non-planar range hood is provided with a range hood main body, a lampblack separator 1 capable of separating lampblack particles and a non-planar shell 2, wherein the non-planar shell 2 is assembled on the outer surface of the range hood main body, and the lampblack separator 1 is assembled inside the non-planar shell 2, as shown in figures 1 to 8.
The non-planar housing 2 is distributed with a plurality of air inlets 211, and the surface area of the non-planar housing 2 is S Non-planar housing 2 The total area of the air inlet 211 is S The air inlet 211 ，0.1S Non-planar housing 2 ≤S The air inlet 211 ≤0.95S Non-planar housing 2 . The total area of the air inlet 211 of this embodiment is 0.5 times the surface area of the non-planar housing 2, and may be any multiple of 0.1 to 0.95, where the specific multiple depends on the actual situation.
When the total area of the air inlet 211 is too small, the oil absorption effect of the non-planar range hood can be affected, but when the total area of the air inlet 211 is too large, the air entering the non-planar range hood cannot be accelerated quickly.
The outer surface of the non-planar housing 2 serves as a guide surface in the moving direction of the soot, rather than forming a hood region for gathering the soot.
At least one air inlet is arranged at the position of the non-covering area of the non-plane shell. The smoke moves along the outer surface of the non-plane shell 2 and is sucked into the interior of the main body of the smoke machine by at least one air inlet 21 arranged at the position of the non-covering area.
The non-planar housing 2 is provided with q air intakes 21. The central point of each air inlet 21 is P 0 、P 1 、……、P i 、……、P q-1 (ii) a And isq is more than or equal to 2, i is more than or equal to 1 and less than or equal to q-1, and both i and q are positive integers and take any central point P in the lowest position of the central point of the air inlet 21 0 And establishing a three-dimensional coordinate system for the origin.
In passing through P 0 And in a plane parallel to the horizontal plane, passing through P 0 And two mutually perpendicular straight lines are defined as X-axis and Y-axis, which will pass through P 0 And a line perpendicularly intersecting the X-axis and the Y-axis, respectively, is defined as a Z-axis, P 0 Coordinate in three-dimensional coordinate system is P 0 (X 0 ,Y 0 ,Z 0 )＝P 0 (0,0,0)。
The coordinate of the central point of the q air inlets 21 on the three-dimensional coordinate axis is P 0 (0,0,0)、P 1 (X 1 ,Y 1 ,Z 1 )、……、P i (X i ,Y i ,Z i )、……、P q-1 (X q-1 ,Y q-1 ,Z q-1 )，P 0 (0,0,0)≠P i (X i ,Y i ,Z i ) And P is i To P q-1 Has a Z-axis coordinate other than 0.
The non-planar shell 2 is also provided with q air inlet surfaces, and the q air inlet surfaces are spliced to form the non-planar shell 2, and each air inlet surface is provided with a corresponding air inlet 21.
q air inlet surfaces are respectively defined as S 0 、S 1 、...、S i 、...、S q-1 Center point P of q air intakes 21 0 、P 1 、...、P i 、...、P q-1 Respectively at S 0 、S 1 、...、S i 、...、S q-1 。
The air inlet surfaces are respectively at least one of planar structures or non-planar structures, and any one air inlet surface is seamlessly spliced with other adjacent air inlet surfaces.
The non-planar housing 2 is further provided with a plurality of annular pieces 212 matching with the plurality of air inlets 211, the annular pieces 212 are integrally connected to the corresponding inner surface of the non-planar housing 2 and located at the edges of the air inlets 211, and the annular pieces 212 correspond to the air inlets 211 one to one. The annular sheet 212 of the present invention may be fixedly attached to the non-planar housing 2, and the specific embodiment is determined by the implementation.
The annular plate 212 functions to generate a vortex when the oil smoke gas enters the non-planar housing 2, and prevent oil smoke particles from being thrown out of the external space from the air inlet 211 of the non-planar housing 2 when the oil smoke particles are thrown out of the oil smoke separator 1.
The included angle formed by the annular sheet 212 and the tangent line corresponding to the edge of the air inlet 211 is C, and the included angle C in this embodiment is 60 °, and may be any angle of 20 ° to 70 °, which is determined by actual conditions.
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, 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 The height of the ith concentric tube is 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.
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 eave structure 13.
The number of the vortex generating devices 14 is m, m is any positive integer larger than 0, and the m vortex generating devices 14 are respectively and fixedly installed on the outer surface of the concentric tubes 11 and surround the connection part of the eaves structure 13 and the 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.
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 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 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 4, 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 the gas at one end of the concentric tube 11 is higher than that at 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 that the pressure at the end of the concentric tube 11 connected with the ventilation assembly 4 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 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 structure 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 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 flow disturbance device 111 functions to generate a vortex flow of the soot gas, thereby improving the oil removing capability.
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 cigarette machine main part is provided with convulsions subassembly 4, and convulsions subassembly 4 fixed assembly is in the inside of non-planar shell 2 and is located oil smoke separator 1's top.
The non-planar shell 2 is further provided with a non-planar shell main body 21 and an oil collecting device 22, the non-planar shell main body 21 is assembled on the outer surface of the cigarette machine main body, the oil collecting device 22 is assembled at the bottom of the non-planar shell main body 21, and the air inlet 211 and the annular sheet 212 are distributed on the non-planar shell main body 21.
The air draft assembly 4 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 tube 11, and an air outlet of the volute is communicated with an air outlet of the cigarette machine main body.
The working principle of the non-planar range hood is as follows: and (3) starting the non-planar range hood, driving the oil fume separator 1 by the motor 3, simultaneously rotating the wind wheel of the air draft assembly 4, separating oil fume particles through seven layers in the non-planar range hood, and finally discharging 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 air inlet 211 of the non-planar shell 2, and the oil smoke enters the annular sheet 212 after entering the air inlet 211, because of the pressure difference between the interior of the non-planar shell 2 and the external environment and the abrupt change of the area of the air inlet 211, the air flow speed is accelerated, and the inertia momentum is relatively increased. And the oil smoke can form a very thin boundary layer around the annular sheet 212, and because the air inlet 211 of the non-planar shell 2 forms an included angle with the annular sheet 212, the oil smoke is forced to flow upwards and enter the oil smoke separator 1 after flowing downwards along the annular sheet 212, 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 22 at the bottom of the non-planar 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 from the downward and upward flowing flow in the direction of the annular sheet 212, 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, the continuously rotating flow field is formed on the annular sheet 212, and the rotating vortex flow reaches the maximum vortex quantity. The remaining lighter soot will not stop at the rotating vortex of the annular plate 212 and when a certain weight is accumulated, the flow field will not support the weight of the soot and will fall down or along the annular plate 212 to the oil catcher 22.
Third layer separation, centrifugal separation: the eave structure 13 rotates with the concentric tubes 11 creating a centrifugal force that interacts with the attraction of the extraction assembly 4. 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 entering 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 212 and finally flow to the oil collecting device 22 along the annular sheet 212.
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 will be gathered with other oil smoke or oil smoke particles by inertia to form larger oil smoke particles to flow downward, and due to centrifugal force, the oil smoke particles will be thrown out at a higher tangential speed and finally flow to the oil collecting device 22 along the ring-shaped pieces 212.
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 oil smoke which continuously rotates from the secondary vortex and moves at the pipe wall in a high tangential line flows downwards along the inner pipe wall due to the gravity and is collected to the oil collecting device 22.
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.
Separating a seventh layer, and separating a wind wheel by centrifugal force: after the first six layers of separation, a small amount of very light oil smoke particles are left to be sucked into the wind wheel of the air draft assembly 4 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 outer surface of the non-planar range hood is used as a guide surface of the oil smoke moving direction instead of forming a covering area for gathering the oil smoke, and meanwhile, the oil smoke removing effect can be greatly improved. Meanwhile, the oil smoke separation component also 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 accumulated oil stain of the wind wheel.
Example 2.
A non-planar range hood, the other features are the same as embodiment 1, except that: n =4 for the present embodiment, i.e. 4 concentric tubes 11 for 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 structure 13.
Compared with the embodiment 1, the non-planar range hood has the advantages that one concentric tube 11 is increased, namely, the space volume of the oil-smoke separator 11 inside the non-planar shell 22 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 and the outside space of the concentric tube 11 is increased, and the separation rate of oil-smoke particles can be increased.
Example 3.
A non-planar range hood, the other characteristics are the same as embodiment 1, except that: the included angle formed by the annular sheet 212 and the tangent line corresponding to the edge of the air inlet 211 is C, and the included angle C in this embodiment is 30 °.
Compared with the embodiment 1, the included angle C of the embodiment is smaller, and the oil smoke particles can be effectively prevented from being thrown out of the non-planar shell 2 under the action of centrifugal force.
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 to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A non-planar range hood, its characterized in that: the range hood is provided with a range hood main body, an oil smoke separator capable of separating oil smoke particles and a non-planar shell, wherein the non-planar shell is assembled on the outer surface of the range hood main body, and the oil smoke separator is assembled inside the non-planar shell;
a plurality of air inlets are distributed on the non-planar shell;
the non-planar shell has a surface area S Non-planar housing The total area of the air inlet is S Air inlet ，0.1S Non-planar housing ≤S The air inlet is less than or equal to 0.95S Non-planar housing ；
The non-planar shell is also provided with annular sheets matched with the plurality of air inlets, the annular sheets are fixedly installed or integrally connected to the corresponding inner surface of the non-planar shell and positioned at the edges of the air inlets, and the annular sheets correspond to the air inlets one to one;
the oil smoke separator is provided with a plurality of concentric tubes with coincident center axes, a rotating shaft and a plurality of eaves structures, the rotating shaft is fixedly connected with one end of each concentric tube, the eaves structures are arranged in a surrounding manner and fixedly installed at the other end of the corresponding concentric tube, and the rotating shaft is in transmission connection with a motor of the cigarette machine main body;
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;
height of No. 1 concentric tube is H 1 The height of the ith concentric tube is 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 (d) is minimal;
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 cornice structure;
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 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.
2. A non-planar range hood as defined in claim 1, wherein: the outer surface of the non-planar shell is used as a guide surface of the oil smoke moving direction, and a covering area for gathering the oil smoke is not formed;
at least one air inlet is positioned in a non-covering area of the non-planar shell;
the oil smoke moves along the outer surface of the non-planar shell and is sucked into the main body of the range hood by at least one air inlet arranged in a non-covering area;
the non-planar shell is provided with q air inlets;
the central point of each air inlet is P 0 、P 1 、……、P i 、……、P q-1 (ii) a Q is more than or equal to 2, i is more than or equal to 1 and less than or equal to q-1, and both i and q are positive integers, and the center point P of any one of the lowest positions of the center point of the air inlet is taken as the center point P 0 Establishing a three-dimensional coordinate system for the origin;
in passing through P 0 And in a plane parallel to the horizontal plane, through P 0 And two mutually perpendicular straight lines are defined as X-axis and Y-axis, which will pass through P 0 And a line perpendicularly intersecting the X-axis and the Y-axis, respectively, is defined as a Z-axis, P 0 Coordinate in three-dimensional coordinate system is P 0 (X 0 ,Y 0 ,Z 0 )＝P 0 (0,0,0)；
The coordinate of the central points of the q air inlets on the three-dimensional coordinate axis is P 0 (0,0,0)、P 1 (X 1 ,Y 1 ,Z 1 )、……、P i (X i ,Y i ,Z i )、……、P q-1 (X q-1 ,Y q-1 ,Z q-1 )，P 0 (0,0,0)≠P i (X i ,Y i ,Z i ) And P is i To P q-1 Has at least one Z-axis coordinate other than 0;
the non-planar shell is also provided with q air inlet surfaces, the q air inlet surfaces are spliced to form the non-planar shell, and each air inlet surface is provided with a corresponding air inlet;
q air inlet surfaces are respectively defined as S 0 、S 1 、...、S i 、...、S q-1 Center point P of q air inlets 0 、P 1 、...、P i 、...、P q-1 Are respectively located at S 0 、S 1 、...、S i 、...、S q-1 ；
The air inlet surfaces are respectively at least one of planar structures or non-planar structures, and any one air inlet surface is seamlessly spliced with other adjacent air inlet surfaces.
3. A non-planar range hood as defined in claim 2, wherein: the included angle formed by the annular sheet and the tangent line of the edge of the corresponding air inlet is C, and C is more than or equal to 20 degrees and less than or equal to 70 degrees.
4. A non-planar range hood as defined in claim 3, wherein: 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.
5. A non-planar range hood as claimed in any one of claims 1 to 4, wherein: the cigarette machine main part is provided with convulsions subassembly, convulsions subassembly fixed assembly in the inside of non-planar shell and be located the top of oil smoke separator.
6. A non-planar range hood as claimed in claim 5, wherein: the non-planar shell is also provided with a non-planar shell main body and an oil collecting device, the non-planar shell main body is assembled on the outer surface of the cigarette machine main body, the oil collecting device is assembled at the bottom of the non-planar shell main body, and the air inlet and the annular sheet are distributed on the non-planar shell 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 on an air inlet of the volute inside the cigarette machine main body and 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188671.3A CN108180526B (en) | 2018-03-07 | 2018-03-07 | Non-planar range hood |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188671.3A CN108180526B (en) | 2018-03-07 | 2018-03-07 | Non-planar range hood |
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| CN108180526A CN108180526A (en) | 2018-06-19 |
| CN108180526B true CN108180526B (en) | 2023-01-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CH692516A5 (en) * | 1998-07-29 | 2002-07-15 | Giovanna Sa H | Self-cleaning cooker hood includes a system for circulating a cleaning solution from a reservoir to a spraying device via a filter containing clay balls and back to the reservoir |
| CN201003807Y (en) * | 2007-02-06 | 2008-01-09 | 李长江 | Double vortex gas filter |
| CN107763700B (en) * | 2017-11-27 | 2020-06-09 | 佛山市云米电器科技有限公司 | Range hood with non-planar structure |
| CN107726415B (en) * | 2017-11-27 | 2023-01-03 | 佛山市云米电器科技有限公司 | Surrounding type smoke exhaust ventilator for absorbing oil smoke |
| CN107726409B (en) * | 2017-11-27 | 2020-06-09 | 佛山市云米电器科技有限公司 | Non-planar range hood |
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