CN107965811B - Multistage filtering device for range hood - Google Patents
Multistage filtering device for range hood Download PDFInfo
- Publication number
- CN107965811B CN107965811B CN201710282090.1A CN201710282090A CN107965811B CN 107965811 B CN107965811 B CN 107965811B CN 201710282090 A CN201710282090 A CN 201710282090A CN 107965811 B CN107965811 B CN 107965811B
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- Prior art keywords
- oil filtering
- oil
- air inlet
- air outlet
- adjacent
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- 238000001914 filtration Methods 0.000 title claims abstract description 112
- 239000000779 smoke Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 8
- 239000003517 fume Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 239000006233 lamp black Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
A multistage filter for range hood, first oil filter plate has the polylith and sets up at one of them layer interval side by side, the clearance between two adjacent first oil filter plates forms the main air inlet, the second oil filter plate has the polylith and sets up at another layer interval side by side, the clearance between two adjacent second oil filter plates forms the gas outlet, main air inlet and gas outlet interval distribution, form air current passageway between air inlet and the adjacent gas outlet, be provided with at least one set of oil filter unit in every air current passageway, every set of oil filter unit all includes the oil filter post of length direction interval distribution along main air inlet and gas outlet, it has the auxiliary air inlet that is linked together with the gas outlet to open on first oil filter plate. This multistage filter device is through setting up the oil column of straining, makes the oil smoke realize a lot of diversion and collision at the horizontal and the vertical homoenergetic of air current passageway in the filtration process to, through setting up auxiliary air inlet, make the air input increase of device, thereby further promote the oil filtering effect.
Description
Technical Field
The utility model relates to a filtering device, in particular to a multistage filtering device for a range hood.
Background
When the range hood works, a large amount of oil smoke can be sucked, the sucked oil smoke is easy to accumulate in the air duct to form a large amount of oil dirt, and the formed oil dirt is high in viscosity and is difficult to discharge from the air outlet of the air duct, so that the oil dirt can not only corrode a pipeline, shorten the service life of the range hood, but also improve the use and maintenance cost of the range hood.
In order to solve the problem, the current common practice is to provide a fume filtering device at the air inlet of the range hood, wherein a mode of two layers of perforated filter plates is more common, such as the fume separator of the range hood disclosed in Chinese patent application No. ZL 200620062667.5 (grant publication No. CN 2937877Y), which comprises a frame and fume baffles, wherein the upper fume baffles and the lower fume baffles are arranged in a vertically staggered manner, an air inlet, an air outlet and a reflective air flow channel are formed between the upper fume baffles and the lower fume baffles, the air inlet and the air outlet are arranged in a staggered manner, and the reflective air flow channel is connected with the air inlet and the air outlet. As another example, chinese patent No. ZL 201320201333.1 (issued to the public No. CN 203264452U) discloses a fume filter plate, where the fume filter plate includes a front plate and a rear plate that are opposite and spaced apart, a plurality of first openings are disposed on the front plate, front wing plates folded between the front plate and the rear plate are disposed at edges of the first openings, a plurality of second openings are disposed on the rear plate, rear wing plates folded between the front plate and the rear plate are disposed at edges of the second openings, and any first openings and second openings adjacent to the first openings are staggered from each other so that the front wing plates at edges of the first openings and the rear wing plates adjacent to the first openings are spaced apart from each other and form air passages communicated between the first openings and the second openings, and two ends of the air passages form air flow turning portions.
The two filter plates of the oil smoke filtering device are simply bent to form a bent airflow channel in a staggered mode, after the oil smoke enters the airflow channel from the air inlet, the oil smoke can flow out from the air outlet only through the simple two direction changes, the number of the direction changes of the oil smoke in the airflow channel is small, namely the collision number of the oil smoke and the filter plates is small, in addition, the smoke baffle plate and the wing plates are flat plates, the oil smoke can only change along the bending direction of the smoke baffle plate and the wing plates, and the direction changes cannot be carried out on the surfaces of the smoke baffle plate and the wing plates. In addition, the existing filtering device has the defect of insufficient air inlet quantity, so that the oil filtering effect is affected. It can be seen that the oil fume filtering effect of the oil fume filtering device is still to be further improved.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a multistage filtering device for a range hood, which can realize multiple direction changes and collision of lampblack in the transverse direction and the longitudinal direction of an airflow channel and has enough air inlet quantity.
The technical scheme adopted for solving the technical problems is as follows: this a multistage filter for range hood, including dividing the first oil strain plate and the second oil strain plate of two-layer distribution, its characterized in that: the first oil filtering plates are provided with a plurality of first oil filtering plates and are arranged at intervals side by side on one layer, gaps between two adjacent first oil filtering plates form a main air inlet, the second oil filtering plates are provided with a plurality of second oil filtering plates and are arranged at intervals side by side on the other layer, gaps between two adjacent second oil filtering plates form an air outlet, the main air inlet and the air outlet are distributed at intervals, an air flow channel is formed between the air inlet and the adjacent air outlet, at least one group of oil filtering units are arranged in each air flow channel, each group of oil filtering units comprises oil filtering columns distributed at intervals along the length directions of the main air inlet and the air outlet, and an auxiliary air inlet is formed in the first oil filtering plates and is communicated with the air outlet through the air flow channel.
Preferably, at least two groups of oil filtering units are arranged in each airflow channel, the oil filtering columns of the adjacent groups of oil filtering units are staggered with each other in the length direction of the main air inlet and the air outlet, the auxiliary air inlets are arranged between the adjacent groups of oil filtering units, and the auxiliary air inlets are distributed at intervals along the length direction of the main air inlet and the air outlet. Therefore, the direction change and collision times of the oil smoke in the airflow channel can be increased, and the filtering effect is improved.
In order to improve the oil smoke filtering effect, two groups of convex surfaces and concave surfaces are formed on two opposite side surfaces of the oil filtering column facing the main air inlet and the air outlet respectively, two groups of oil filtering units are arranged, the convex surfaces of the oil filtering columns of the oil filtering units adjacent to the main air inlet face the main air inlet and are outwards protruded in the main air inlet, the convex surfaces of the oil filtering columns of the oil filtering units adjacent to the air outlet face the air outlet and are outwards protruded in the air outlet, and the auxiliary air inlet is arranged at the position of the concave area corresponding to the oil filtering column adjacent to the air outlet. Therefore, the lampblack can realize multiple diversion and collision in the length direction of the air inlet and the air outlet besides realizing multiple diversion and collision in the transverse direction and the longitudinal direction of the air filtering flow channel, so that the oil filtering effect is further improved, and the auxiliary air inlet is arranged at the position of the concave area of the oil filtering column, so that the diversion and the collision are more facilitated.
Preferably, the section of the oil filtering column is arc-shaped or U-shaped or V-shaped. Of course, the cross section of the oil filter column may take other suitable shapes, and most preferably may take the shape of a semicircle.
The oil filter unit may have various mounting structures, and preferably, the oil filter unit adjacent to the main air inlet is provided on the first oil filter plate, and the oil filter unit adjacent to the air outlet is provided on the second oil filter plate.
Preferably, the first oil filter plate and the second oil filter plate can be mutually detached, and the oil filter units are all arranged on the first oil filter plate or on the second oil filter plate.
In order to make the structure of the device more firm, the first oil filter plate, the second oil filter plate and the oil filter unit are of an integrated structure.
Compared with the prior art, the utility model has the advantages that: this a multistage filter equipment for range hood is provided with at least a set of oil filter unit in the air current passageway between air inlet and gas outlet, and every oil filter unit of group all includes the oil filter column of length direction interval distribution along air inlet and gas outlet, and the oil smoke can realize a lot of diversion and collision at air current passageway's horizontal and vertical homoenergetic in the filtration process to, through setting up the auxiliary air inlet that is linked together with the gas outlet, make the air input increase of device, thereby further promote oil filtering effect.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a schematic view of another embodiment of the present utility model;
FIG. 3 is a partial cross-sectional view of a first embodiment of the utility model;
FIG. 4 is an exploded view of a first embodiment of the present utility model;
fig. 5 is an exploded view of a second embodiment of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
Embodiment one:
as shown in fig. 1 to 4, the multi-stage filter device for a range hood in this embodiment includes a first oil filter plate 1 and a second oil filter plate 2, the first oil filter plate 1 and the second oil filter plate 2 are arranged in two layers and horizontally, the first oil filter plate 1 has a plurality of pieces and is arranged at a lower layer side by side interval, a gap between two adjacent first oil filter plates 1 forms a main air inlet 3, the second oil filter plate 2 has a plurality of pieces and is arranged at an upper layer side by side interval, and a gap between two adjacent second oil filter plates 2 forms an air outlet 4. The direction indicated by an arrow A in fig. 1 is taken as a forward direction, the main air inlet 3 and the air outlet 4 are distributed at left and right intervals, and an air flow channel 5 is formed between the main air inlet 3 and the adjacent air outlet 4. An auxiliary air inlet 7 is formed in the first oil filtering plate 1, and the auxiliary air inlet 7 is communicated with the air outlet 4 through an air flow channel 5.
In this embodiment, two sets of oil filtering units are disposed on each airflow channel 5, and the oil filtering unit on the side close to the main air inlet 3 is a first oil filtering unit 6a, and the oil filtering unit on the side close to the air outlet 4 is a second oil filtering unit 6b. The first oil filtering unit 6a and the second oil filtering unit 6b each include oil filtering columns 6 which are distributed at intervals along the longitudinal direction, that is, the front-rear direction, of the main air inlet 3 and the air outlet 4, and the oil filtering columns 6 are vertically arranged. The oil filter columns 6 of the first oil filter unit 6a and the second oil filter unit 6b in the same air flow channel 5 are staggered with each other in the front-rear direction, and the oil filter columns of the two adjacent sets of oil filter units in the two adjacent air flow channels 5 are staggered with each other in the front-rear direction. The auxiliary air inlets 7 are arranged between the adjacent groups of oil filtering units, and the auxiliary air inlets 7 are distributed at intervals along the length direction of the main air inlets 3 and the air outlets 4.
The two opposite sides of the oil filtering column 6 facing the main air inlet 3 and the air outlet 4, namely the left side and the right side, are respectively provided with a convex surface 61 and a concave surface 62, and the section of the oil filtering column 6 is in a semicircular arc shape. And, the convex surface of the oil filtering column 6 of the oil filtering unit adjacent to the main air inlet 3 faces the main air inlet 3 and protrudes outwards from the main air inlet 3, the convex surface of the oil filtering column 6 of the oil filtering unit adjacent to the air outlet 4 faces the air outlet 4 and protrudes outwards from the air outlet 4, and the auxiliary air inlet 7 is arranged at the position of the concave area corresponding to the oil filtering column 6 adjacent to the air outlet.
In this embodiment, the first oil filter plate 1 and the second oil filter plate 2 can be separated from each other, and the oil filter units are all disposed on the first oil filter plate 1.
The oil filtering process of the filtering device of this embodiment is as follows:
firstly, in the air intake process, the oil smoke contacts the outer surface of the first oil filter plate 1 for condensation and filtration; then, after the oil fume enters the main air inlet 3 and the auxiliary air inlet 7, the oil fume path is converted into a horizontal left-right direction from the vertical up-down direction, namely, the oil fume path is bent by 90 degrees and is contacted with the inner surface of the second oil filtering plate 2 for filtering; then, the bent oil fume is contacted and filtered with a first oil filtering unit 6a in the airflow channel 5; then, after passing through the first oil filtering unit 6a, the air flow channel 5 leads to the second oil filtering unit 6b and contacts with the concave surface 62 of the second oil filtering unit 6b for filtering; finally, after passing through the second oil filtering unit 6b, the oil fume is filtered by contacting with the convex surface 61 of the second oil filtering unit 6b in the adjacent airflow channel 5, and then the oil fume path is converted from horizontal to vertical, namely, the oil fume path is bent again by 90 degrees, and the oil fume is discharged from the air outlet 4.
According to the oil filtering process, the lampblack achieves multiple direction changing and collision in the transverse direction (left-right direction) and the longitudinal direction (vertical direction) of the airflow channel 5, and the oil filtering efficiency is greatly improved. In addition, because the oil filtering columns of the filtering device are arranged at intervals and have the concave-convex surfaces, the oil smoke can be fully turned and collided in the front-back direction of the airflow channel 5 in the filtering process, and thus the oil filtering effect is further improved.
Embodiment two:
as shown in fig. 5, the oil filter unit adjacent to the main air inlet 3 is provided on the first oil filter plate 1, and the oil filter unit adjacent to the air outlet 4 is provided on the second oil filter plate 2. The oil filtering process of the device in this embodiment is the same as that of the first embodiment, and will not be described here.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that, for those skilled in the art, many modifications and improvements may be made to the present utility model without departing from the principles of the present utility model, for example, the first oil filter plate, the second oil filter plate, the first oil filter unit and the second oil filter unit may be integrally formed, and two ends of the oil filter column are respectively formed on the inner sides of the first oil filter plate and the second oil filter plate, which are considered as being within the scope of the present utility model.
Claims (3)
1. A multi-stage filter for range hood, including dividing first oil filter plate (1) and second oil filter plate (2) that two-layer distributed, its characterized in that: the first oil filtering plates (1) are provided with a plurality of first oil filtering plates and are arranged at intervals on one layer side by side, gaps between two adjacent first oil filtering plates (1) form a main air inlet (3), the second oil filtering plates (2) are provided with a plurality of second oil filtering plates and are arranged on the other layer side by side at intervals, gaps between two adjacent second oil filtering plates (2) form an air outlet (4), the main air inlet (3) and the air outlet (4) are distributed at intervals, an air flow channel (5) is formed between the main air inlet (3) and the adjacent air outlet (4), at least one group of oil filtering units are arranged in each air flow channel (5), each group of oil filtering units comprises oil filtering columns (6) which are distributed at intervals along the length direction of the main air inlet (3) and the air outlet (4), the first oil filtering plates (1) are provided with auxiliary air inlets (7), the auxiliary air inlets (7) are communicated with the air outlet (4) through the air flow channels (5), at least two groups of oil filtering units (3) are arranged on each air flow channel (5) and are staggered along the length direction of the main air inlet (4) and the auxiliary air inlet (4) along the length direction of the main air inlet (4), the oil filtering column (6) is provided with a convex surface (61) and a concave surface (62) towards two opposite side surfaces of the main air inlet (3) and the air outlet (4) respectively, the oil filtering units are two groups, the convex surface of the oil filtering column (6) of the oil filtering unit adjacent to the main air inlet (3) faces the main air inlet (3) and protrudes outwards in the main air inlet (3), the convex surface of the oil filtering column (6) of the oil filtering unit adjacent to the air outlet (4) faces the air outlet (4) and protrudes outwards in the air outlet (4), the auxiliary air inlet (7) is arranged at a position of a concave area corresponding to the oil filtering column adjacent to the air outlet (4), the section of the oil filtering column (6) is arc-shaped or U-shaped or V-shaped, the oil filtering unit adjacent to the main air inlet (3) is arranged on the first oil filtering plate (1), and the oil filtering unit adjacent to the air outlet (4) is arranged on the second oil filtering plate (2).
2. The multi-stage filtration device for a range hood of claim 1, wherein: the first oil filtering plate (1) and the second oil filtering plate (2) can be mutually detached, and the oil filtering units are arranged on the first oil filtering plate (1) or the second oil filtering plate (2).
3. The multi-stage filtration device for a range hood of claim 1, wherein: the first oil filtering plate (1), the second oil filtering plate (2) and the oil filtering unit are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710282090.1A CN107965811B (en) | 2017-04-26 | 2017-04-26 | Multistage filtering device for range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710282090.1A CN107965811B (en) | 2017-04-26 | 2017-04-26 | Multistage filtering device for range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107965811A CN107965811A (en) | 2018-04-27 |
| CN107965811B true CN107965811B (en) | 2023-11-17 |
Family
ID=61997458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710282090.1A Active CN107965811B (en) | 2017-04-26 | 2017-04-26 | Multistage filtering device for range hood |
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| Country | Link |
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| CN (1) | CN107965811B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008119213A1 (en) * | 2007-03-29 | 2008-10-09 | Ningbo Fotile Kitchen Ware Co., Ltd | An oil smoke filter |
| CN104048340A (en) * | 2014-06-20 | 2014-09-17 | 宁波方太厨具有限公司 | Oil smoke filtering device for extractor hood |
| CN203928065U (en) * | 2014-06-20 | 2014-11-05 | 宁波方太厨具有限公司 | A kind of lampblack filter for range hood |
| CN203928067U (en) * | 2014-06-20 | 2014-11-05 | 宁波方太厨具有限公司 | A kind of lampblack filter for range hood |
| CN203928066U (en) * | 2014-06-20 | 2014-11-05 | 宁波方太厨具有限公司 | A kind of lampblack filter for range hood |
| CN203949249U (en) * | 2014-06-20 | 2014-11-19 | 宁波方太厨具有限公司 | A kind of lampblack filter for range hood |
-
2017
- 2017-04-26 CN CN201710282090.1A patent/CN107965811B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008119213A1 (en) * | 2007-03-29 | 2008-10-09 | Ningbo Fotile Kitchen Ware Co., Ltd | An oil smoke filter |
| CN104048340A (en) * | 2014-06-20 | 2014-09-17 | 宁波方太厨具有限公司 | Oil smoke filtering device for extractor hood |
| CN203928065U (en) * | 2014-06-20 | 2014-11-05 | 宁波方太厨具有限公司 | A kind of lampblack filter for range hood |
| CN203928067U (en) * | 2014-06-20 | 2014-11-05 | 宁波方太厨具有限公司 | A kind of lampblack filter for range hood |
| CN203928066U (en) * | 2014-06-20 | 2014-11-05 | 宁波方太厨具有限公司 | A kind of lampblack filter for range hood |
| CN203949249U (en) * | 2014-06-20 | 2014-11-19 | 宁波方太厨具有限公司 | A kind of lampblack filter for range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107965811A (en) | 2018-04-27 |
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