CN108386884B - Resonance type oil smoke filter screen - Google Patents
Resonance type oil smoke filter screen Download PDFInfo
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- CN108386884B CN108386884B CN201810188666.2A CN201810188666A CN108386884B CN 108386884 B CN108386884 B CN 108386884B CN 201810188666 A CN201810188666 A CN 201810188666A CN 108386884 B CN108386884 B CN 108386884B
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- oil smoke
- air inlet
- filter
- spring
- filtering device
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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
Abstract
A resonance type oil smoke filter screen is provided with a non-planar filter device for filtering oil smoke and a resonance body with elastic potential energy; the resonance body is arranged on the filtering device; the filter device is arranged as an anti-falling filter device; the filtering device is a plastic filtering device or a metal filtering device; the outer surface of the filtering device is used as a guide surface of the oil smoke moving direction, and is not provided with a covering area for gathering the oil smoke; at least one air inlet is arranged at the position of a non-covering area of the filter device; the oil smoke moves along the outer surface of the filtering device 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; the filtering device is provided with q air inlets; the resonance type oil smoke filter screen can filter oil smoke when in use, and oil stains attached to the filter device are thrown out by the resonance body.
Description
Technical Field
The invention relates to the technical field of oil smoke filtration, in particular to a resonance type oil smoke filter screen.
Background
The range hood is one of essential appliances in modern families. The range hood is arranged above the kitchen gas stove and used for absorbing oil smoke generated during cooking, discharging the oil smoke out of a room and reducing oil smoke pollution in a kitchen. However, when the range hood is used, part of the range hood, such as a wind wheel on the range hood, can be covered by high-concentration oil smoke; the adsorbed fumes can degrade the fume extraction function and cause noise problems due to resonance, etc., thereby affecting the overall performance of the range hood.
Therefore, it is necessary to provide a resonant type soot filter to overcome the deficiencies of the prior art.
Disclosure of Invention
The invention aims to avoid the defects of the prior art and provides a resonance type oil smoke filter screen which can separate oil smoke from high-concentration oil smoke particles in the using process and throw oil stains away by utilizing the resonance principle.
The above object of the present invention is achieved by the following means.
Providing a resonance type oil smoke filter screen which is provided with a non-planar filter device for filtering oil smoke and a resonance body with elastic potential energy;
the resonance body is arranged in the filter device.
The filter device is arranged as an anti-falling filter device;
the filtering device is a plastic filtering device or a metal filtering device.
The outer surface of the filtering device is used as a guide surface of the oil smoke moving direction, and is not provided with a covering area for gathering the oil smoke;
at least one air inlet is arranged at the position of a non-covering area of the filter device;
the oil smoke moves along the outer surface of the filtering device and is sucked into the interior of the main body of the smoke machine by at least one air inlet arranged at the position of the non-covering area.
The filtering device 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, 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 coordinates of the central points of the q air inlets on the three-dimensional coordinate axis are P0 (0, 0) and P1 (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 filter device is also provided with q air inlet surfaces, the q air inlet surfaces are spliced to form the filter device, 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,q Center point P of air inlet 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 or non-planar structures, and any one air inlet surface is seamlessly spliced with other adjacent air inlet surfaces.
The resonance body is provided with m elastic pieces; the minimum elastic potential energy of the elastic part is more than 0; one end of the elastic element is fixed on the fixing frame on the fixing body, and the other end of the elastic element is suspended in the air; m is more than or equal to 1, and m is a positive integer.
The elastic part is a spring; natural frequency of the spring f s ；
Wherein:
d coil : diameter of coil
D Spring Diameter of spring
G shear modulus
n T Bus turns.
The outer wall surface of the spring is coated with a cooling condensation layer.
The cooling and condensing layer is provided with a metal coating or a ceramic coating.
The spring is also provided with F first concave holes which are concave in the outer wall surface of the spring, F is more than or equal to 1, and F is a positive integer;
the maximum concave distance of the first concave hole is D Inner concave ，D Inner concave Is greater than 0; the maximum aperture of the first concave hole is D Pore diameter ，D Pore diameter ＞0，D Spring ≥D Pore diameter 。
The invention discloses a resonance type oil smoke filter screen which is provided with a non-planar filtering device for filtering oil smoke and a resonance body with elastic potential energy; the resonance type oil smoke filter screen can filter oil smoke when in use, and oil stains attached to the filter device are thrown out by the resonance body.
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 filter device of a resonant type oil smoke filter screen according to the present invention.
Fig. 2 is a sectional view of a portion a of fig. 1.
Fig. 3 is a cross-sectional view of the first recess portion of fig. 1.
Fig. 4 is a schematic structural view of the housing.
In fig. 1 to 4, includes:
a resonance body 300, a spring 301, a cooling condensation layer 302, and a first concave hole 303;
Detailed Description
The invention is further described with reference to the following examples.
Example 1.
A resonance type oil smoke filter screen, as shown in fig. 1 to 4, which is provided with a non-planar filtering device for filtering oil smoke and a resonance body with elastic potential energy;
the resonance body is arranged in the filtering device; the filter device is arranged to prevent falling
The filtering device is a plastic filtering device; the outer surface of the filtering device is used as a guide surface of the moving direction of the oil smoke, and is not provided with a covering area for gathering the oil smoke;
at least one air inlet 21 is arranged at the position of the non-covering area of the filter device;
the oil smoke moves along the outer surface of the filtering device and is sucked into the interior of the main body of the range hood by at least one air inlet 21 arranged in a non-covering area.
The filtering device is provided with q air inlets 21;
the central point of each air inlet 21 is P0 and P respectively 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 central point P is any one of the lowest positions of the central points of the air inlets 21 0 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 straight lines perpendicular to each other 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 coordinates of the central points of the q air inlets 21 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;
the filter device is also provided with q air inlet surfaces, the q air inlet surfaces are spliced to form the filter device, 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 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. In this embodiment, the filtering device is spherical, and the plurality of air inlets 21 are uniformly distributed on the spherical surface.
The resonance body is provided with m elastic pieces; the minimum elastic potential energy of the elastic part is more than 0; one end of the elastic element is fixed on the fixing frame on the fixing body, and the other end of the elastic element is suspended in the air; m is more than or equal to 1, and m is a positive integer.
The elastic piece is a spring; natural frequency of the spring f s ；
Wherein:
d coil : diameter of coil
D Spring : diameter of spring
G: shear modulus
n T : the number of bus turns.
The outer wall surface of the spring is coated with a cooling condensation layer.
The cooling and condensing layer is provided with a metal coating or a ceramic coating.
The spring is also provided with F first concave holes which are inwards concave to the outer wall surface of the spring, F is more than or equal to 1, and F is a positive integer;
the maximum concave distance of the first concave hole is D Inner concave ，2V≥D Inner concave Is greater than 0; the maximum aperture of the first concave hole is D Pore diameter ，D Pore diameter ＞0，D Spring ≥D Pore diameter 。
Wherein:
d coil : diameter of coil
D Spring : diameter of spring
G: shear modulus
n T : number of bus turns.
The first natural frequency of the coil of the spring 301 can be obtained by a concept similar to a long rod:
K: spring rate
ρ: density of material
Vol: volume of
m Bullet : spring quality
The stiffness of the spring 301 can be further described in terms of the shear modulus, geometry, and effective coil count of the spring 301
Meanwhile, the volume of the spring 301 may be expressed as
Thus, the first natural frequency of the coil of spring 301 can be modified to be:
wherein:
d coil : coil diameter
D Spring : diameter of spring
G: shear modulus
n T : the number of bus turns.
Wherein the frequency of vortex shedding can be described as
St: strottle Laoha number
U: the fluid flow rate.
When the first natural frequency of the spring 301 design is close to the frequency of vortex shedding, a phenomenon of spring 301 resonance occurs, i.e. f s ≈f v 。
Wherein, the outer wall surface of the spring 301 is covered with a cooling condensation layer 302;
wherein the cooling condensation layer 302 is provided as a metal coating; the main purpose of the metal coating is to enable oil smoke in the air to be condensed on the metal coating under the sudden change of temperature, and as common knowledge of persons skilled in the art, the material of the metal may be selected from copper or alloy or other materials of different materials, which will not be described in detail as common knowledge of persons skilled in the art.
Wherein the spring 301 is also provided with F first concave holes 303 which are concave in the outer wall surface of the spring 301, F is more than or equal to 1, and F is a positive integer; in this embodiment, F is 2, and it is specifically described that in actual use, random changes can be made as necessary.
The maximum concave distance of the first concave hole 303 is D concave, and the D concave is more than 0; the maximum aperture of the first concave hole 303 is D aperture, D aperture is more than 0 Spring The aperture is more than or equal to D;
the connecting end of the spring 301 and the multi-stage oil fume separation main body 103 is defined as a starting end; the relative distance between the spring 301 from the starting end to the other end is L Initiation Domain The outer wall of the region is coated with an oleophobic coating 104; d Spring ＞L Initiation Domain ＞0。
Y springs 301 are provided, Y is more than or equal to 1, Y is a positive integer, Y =6 in the embodiment specifically means that Y is not only 6, but also can be set to values of 1, 2, 3, 4 and the like according to actual needs, and each spring 301 only needs to be kept a certain distance so long as the natural frequency f between the swinging springs 301 is not influenced when the swinging springs 301 are used s And the local area can be kept to shake back and forth, and as common knowledge of ordinary technicians in the field, detailed description of a specific setting mode is omitted.
When the oil smoke particle in the air is when passing through the filter screen, make the oil smoke produce the condensation on the filter screen surface, the in-process of recondensing, again because be provided with 2 first shrinkage pool 303, make the outer wall surface at the oil body of getting rid of have produced unevenness's outer wall surface, increased the condensation area to the oil smoke particle, when the oil smoke that condenses forms the certain degree at the oil body surface of getting rid of, the oil smoke that condenses on the oil body of getting rid of makes the gravitational potential energy who gets rid of the oil body increase, the motion that makes a round trip from top to bottom produces, and then throws away the oil smoke.
The invention discloses a resonance type oil smoke filter screen which is provided with a non-planar filtering device for filtering oil smoke and a resonance body with elastic potential energy; the resonance type oil smoke filter screen can filter oil smoke when in use, and utilizes the resonance body to throw away oil stains attached to the filter device.
Example 2.
The other structures of the resonance type oil smoke filter screen are the same as those of the embodiment 1, and the difference is that the filter device is a metal filter device; be metal filter equipment through changing filter equipment, can make the oil smoke produce the condensation more easily when filter equipment, can carry out better filter effect to the oil smoke.
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 (8)
1. A resonance type oil smoke filter screen is characterized in that: the device is provided with a non-planar filtering device for filtering oil smoke and a resonance body with elastic potential energy, wherein the resonance body is arranged in the filtering device;
the resonance body is provided with m elastic pieces, the minimum elastic potential energy of the elastic pieces is more than 0, one end of each elastic piece is fixed on the fixed frame on the fixed body, and the other end of each elastic piece is suspended in the air; m is more than or equal to 1, and m is a positive integer;
the elastic piece is a spring, the spring is provided with F first concave holes which are concave in the outer wall surface of the spring, F is more than or equal to 1, and F is a positive integer.
2. The resonant type oil smoke filter screen according to claim 1, characterized in that:
the filter device is arranged as an anti-falling filter device;
the filtering device is a plastic filtering device or a metal filtering device.
3. The resonant soot filter of claim 2, wherein:
the outer surface of the filtering device 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 arranged at the position of a non-covering area of the filter device;
the oil smoke moves along the outer surface of the filtering device and is sucked into the interior of the main body of the smoke machine by at least one air inlet arranged at the position of the non-covering area.
4. The resonant soot filter of claim 3, wherein:
the filtering device 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 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 straight lines perpendicular to each other 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 At least storeA coordinate in one Z axis is not 0;
the filter device is also provided with q air inlet surfaces, the q air inlet surfaces are spliced to form the filter device, 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 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.
5. The resonant soot filter according to any one of claims 1 to 4, wherein:
the natural frequency of the spring is f s ；
Wherein:
d coil : the diameter of the coil;
D spring : the diameter of the spring;
g: a shear modulus;
n T : the number of bus turns.
6. The resonant soot filter of claim 5, wherein: the outer wall surface of the spring is covered with a cooling condensation layer.
7. The resonant type lampblack filter screen according to claim 6, characterized in that: the cooling and condensing layer is provided with a metal coating or a ceramic coating.
8. The resonant soot filter of claim 7, wherein said filter is a hollow filter: the maximum concave distance of the first concave hole is D Inner concave ，D Inner concave Is greater than 0; the maximum aperture of the first concave hole is D Pore diameter ，D Pore diameter ＞0，D Spring ≥D Pore diameter 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188666.2A CN108386884B (en) | 2018-03-07 | 2018-03-07 | Resonance type oil smoke filter screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188666.2A CN108386884B (en) | 2018-03-07 | 2018-03-07 | Resonance type oil smoke filter screen |
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| Publication Number | Publication Date |
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| CN108386884A CN108386884A (en) | 2018-08-10 |
| CN108386884B true CN108386884B (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810188666.2A Active CN108386884B (en) | 2018-03-07 | 2018-03-07 | Resonance type oil smoke filter screen |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1138628A (en) * | 1955-12-16 | 1957-06-17 | Advanced sieving and filtering device | |
| FR1169157A (en) * | 1957-03-07 | 1958-12-23 | Improvements to industrial filters | |
| US4253508A (en) * | 1979-01-19 | 1981-03-03 | Bodai Industries, Inc. | Selective filtering of tobacco smoke by enhanced filtration efficiency |
| EP0050884A1 (en) * | 1980-10-29 | 1982-05-05 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Resonant chamber atomiser for liquids |
| CN103196166A (en) * | 2013-03-07 | 2013-07-10 | 湖北酒总厨业有限公司 | Combined type fume purification device |
| RU171836U1 (en) * | 2016-07-18 | 2017-06-19 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | VIBRATION FILTER FOR CLEANING GASES FROM DISPERSED SOLID PARTICLES |
| CN206377718U (en) * | 2016-12-22 | 2017-08-04 | 衢州艾尚工业设计有限公司 | A kind of lampblack absorber filter |
-
2018
- 2018-03-07 CN CN201810188666.2A patent/CN108386884B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1138628A (en) * | 1955-12-16 | 1957-06-17 | Advanced sieving and filtering device | |
| FR1169157A (en) * | 1957-03-07 | 1958-12-23 | Improvements to industrial filters | |
| US4253508A (en) * | 1979-01-19 | 1981-03-03 | Bodai Industries, Inc. | Selective filtering of tobacco smoke by enhanced filtration efficiency |
| EP0050884A1 (en) * | 1980-10-29 | 1982-05-05 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Resonant chamber atomiser for liquids |
| CN103196166A (en) * | 2013-03-07 | 2013-07-10 | 湖北酒总厨业有限公司 | Combined type fume purification device |
| RU171836U1 (en) * | 2016-07-18 | 2017-06-19 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | VIBRATION FILTER FOR CLEANING GASES FROM DISPERSED SOLID PARTICLES |
| CN206377718U (en) * | 2016-12-22 | 2017-08-04 | 衢州艾尚工业设计有限公司 | A kind of lampblack absorber filter |
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