CN103335348A - Extractor hood - Google Patents
Extractor hood Download PDFInfo
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- CN103335348A CN103335348A CN2013102581724A CN201310258172A CN103335348A CN 103335348 A CN103335348 A CN 103335348A CN 2013102581724 A CN2013102581724 A CN 2013102581724A CN 201310258172 A CN201310258172 A CN 201310258172A CN 103335348 A CN103335348 A CN 103335348A
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- range hood
- airslide
- gas
- fan
- lampblack
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Abstract
The invention discloses an extractor hood which comprises a lampblack collecting plate, a relatively closed shell communicated with the lampblack collecting plate, a partitioning plate for partitioning the shell into a lampblack channel and an extractor mechanism installing part, an airflow channel arranged in the lampblack channel, a fan and a volute, wherein the fan and the volute are arranged in the extractor mechanism installing part, a channel opening of the airflow channel faces upwards, a gas inlet of the airflow channel is communicated with a gas outlet in the volute in a sealing manner, a gas inlet of the fan is formed in the side wall of the upper part of the extractor hood, and an outlet of the lampblack channel is positioned above the extractor hood. The extractor hood disclosed by the invention has the advantages that lampblack can be prevented from entering the fan to ensure that the fan is free of being polluted by the lampblack, the cleaning procedure is reduced, the service life is prolonged; the lampblack channel is simple and smooth; in comparison with a conventional extractor hood, the extractor hood has the advantage that the displacement of the fan is remarkably reduced; the volumes of the fan and the volute are greatly reduced, and the electricity consumption is decreased.
Description
Technical field
The present invention relates to range hood, the range hood that especially a kind of oil smoke separates with blade.
Background technology
Range hood is widely used in the middle of the family kitchen, is used for cooking the oil smoke that produces and discharges indoor.The principle of hydrodynamics of range hood work can be summarized as substantially on the market: the rotation of the centrifugal fan by being installed in range hood inside, produce negative-pressure sucking at the blower fan center, with the oil smoke suction blower fan of lampblack absorber below, the process blower fan accelerates the back and is collected, guides discharge outdoor by spiral case.
There are two inevitable shortcomings in this operation principle: one, exhaust gases passes has repeatedly bending, and is complex-shaped.Especially sharply change to getting rid of this section stream condition from the spiral case outlet from entering blower fan, energy consumption is very big, and this just requires rotation speed of fan to want enough just to provide enough suction to produce specified throughput greatly.Yet, improve the increase that rotation speed of fan can bring power consumption and noise.Use high-power blower fan to make that also the volume of range hood is very big simultaneously.Two, the oil smoke mixed airflow must pass through draught fan impeller.The type of maturation on the market, no matter how the position of blower fan and deflector changes, oil smoke all must could be discharged via the acceleration of blade, therefore blade in use for some time, must be at a certain amount of grease of surface deposition, make blower fan no longer keep the dynamic equilibrium state that dispatches from the factory, increased vibrations and noise.
Also have some technology, Chinese patent 01201987.9 " the spiral-flow type smoke exhaust ventilator " that propose for example, though the blower fan of configuration has been shifted out the oil smoke zone, utilize the rotation ascending air to form negative pressure source, but the suction of this negative pressure source is subjected to the restriction of whirl cylinder shape, can not reach effective suction and good control, fail to put on market.
Summary of the invention
Goal of the invention: the present invention will provide a kind of range hood, to address the above problem.
Technical scheme: a kind of range hood, the relative airtight housing that comprises the cooking fume-collecting plate, is communicated with the cooking fume-collecting plate, with housing be divided into gas flue and extraction sector installation portion dividing plate, be located at the airslide in the gas flue, and be installed in blower fan and spiral case in institute's extraction sector installation portion; The notch of airslide upwards, its gas access seals with gas vent on the spiral case and is communicated with, the gas access of blower fan is positioned on the sidewall on range hood top, the outlet of gas flue is positioned at the top of range hood.
The place, gas access of blower fan arranges screen pack, is provided with arc deflector in the gas flue.Gas vent on the described spiral case is arranged on the symmetrical centre position of airslide; The entrance junction of described gas vent and airslide arranges sealing ring.Along the air motion direction, the area of section of airslide reduces gradually.The cross section of described airslide is trapezoidal or rhombus.The width of rebate of described airslide is 0.6-1.5mm.Described airslide is annular, near the madial wall of gas flue.
Beneficial effect: advantage of the present invention comprises: can avoid oil smoke to enter blower fan, make blower fan avoid fume pollution, reduce cleaning, increase the service life; Oil smoke passage of the present invention is simply unobstructed; The more traditional range hood of the discharge capacity of blower fan has been compared obvious decline; The volume of blower fan and spiral case significantly reduces, and power consumption is also little.
Description of drawings
Fig. 1 is structure perspective view of the present invention;
Fig. 2 is the structural representation of extraction sector of the present invention;
Fig. 3 is partial sectional view of the present invention;
Fig. 4 a to Fig. 4 c is the cross sectional shape schematic diagram of high velocity air groove of the present invention.
The specific embodiment
As shown in Figure 1 to Figure 3, range hood of the present invention mainly comprises cooking fume-collecting plate 1, housing 2, dividing plate 3, airslide 4, blower fan 5, spiral case 6, screen pack 7 and deflector 8.Housing 2 is airtight relatively and be communicated with the cooking fume-collecting plate;
Dividing plate 3 is used for housing 2 is divided into two relative airtight parts of gas flue and extraction sector installation portion; Airslide is located at 4 in the gas flue, notch upwards, its gas access seals with gas vent on the spiral case and is communicated with; Blower fan 5 and spiral case 6 are installed in institute extraction sector installation portion inside; The gas access of blower fan is positioned on the sidewall on range hood top, and the outlet 10 of gas flue is positioned at the top of range hood.Screen pack 7 is arranged on the place, gas access of blower fan; Deflector 8 is arranged on the gas flue inside front.Gas vent 11 on the spiral case is arranged on the symmetrical centre position of airslide 4; The entrance junction of gas vent and airslide arranges sealing ring.The airslide cross section of fluid channel is up-narrow and down-wide shape, is trapezoidal or rhombus, and outlet makes progress, and A/F is about 1mm.In the present invention, the implication of top comprises side wall upper part or top.
In another embodiment, range hood of the present invention comprises the deflector of collecting oil smoke and filtering, be arranged on the high velocity air groove of range hood inside, be arranged on the deflector of range hood edge top, and the oil smoke passage of being formed by internal partition, top spacer, shell.Exporting vertical direction with the high velocity air groove is the oil smoke runner.The top of oil smoke passage is provided with and is connected to outdoor outlet.The entrance of high velocity air groove is connected with the exit seal of spiral case, and centrifugal fan is installed in the spiral case.Volute inlet communicates with the kitchen, is provided with filter screen.The outlet of high velocity air groove is close to the flue inboard, and level is installed.The drainage plate of flue top is the circular arc thin plate, and symmetry is installed and in the centre of individual drainage plate flue outlet is set.The entrance of high velocity air groove is arranged on filter screen one side, and the lateral attitude is the symmetrical centre position of airslide, and spiral case is installed and decided according to inner fan blade direction of rotation, and the present embodiment is installed in the position that range hood is taken back./ 4th places add interface channel to airslide at two ends, and channel cross-section is rectangle or cylindrical, the top imperforation, and end face communicates with airslide.
Operation principle of the present invention is: with the clean gas flow of blower fan and the generation of spiral case system, be inducted in the high velocity air groove by jockey, because the airslide opening is very narrow, air-flow upwards ejection at a high speed, and drive airslide ambient air moves upward, below airslide, form negative pressure region, the cooking fume of net filtration is after filtration sucked flue.Whole air-flow moves upward, and discharges by internal partition drainage to exit.
In range hood of the present invention, oil smoke passage and driving gas channel are separate.Form check-valves by the one-way gas flow in the high velocity air groove, malleation drives air-flow from the ejection of high velocity air groove, makes oil smoke can't enter blower fan system, pollutes blade.And the wideer design in airflow path bottom can make air-flow fast, low power consuming be full of whole airslide, make the full annular airslide can form the upwards air-flow of ejection, and A/F is very little, air-flow during by slit speed sharply increase, form the high velocity air of going up ejection down.The entrance of airslide is connected with the spiral case outlet, by baffle plate and sealing ring sealing, air-flow can only be sprayed from narrow notch.Annular high velocity air groove position makes to drive air-flow along upwards ejection of wall that easier drive soot gas moves upward, in the lower zone formation negative pressure of groove for being close to internal face.Motion has inhibition because the lower surface of groove is to oil smoke simultaneously, can reduce oil smoke rising resistance and be arranged in the wall place, makes the oil smoke runner unobstructed.In embodiment further, the both sides spacing that optimal design annular airflow groove is long, spacing is unsuitable excessive, guarantees that the flue gas of annular center position can effectively be inhaled into flue.In other embodiments, the below deflector is the side-suction type deflector, and the integral thickness of range hood diminishes, and can make to change negative-pressure sucking and farthest embodied.There is thin wall barrier to separate between spiral case and flue.Its effect one is to prevent that high velocity air from forming eddy current near spiral case, hinders the rising of air-flow; The 2nd, form cavity in spiral case one side, for equipment such as later stage assembling electric control box provide clean space.The arc drainage plate is arranged at the flue top, makes the flue gas of rising can effectively converge to the exit position discharge, avoids resulting in blockage on the flue top.Exhanst gas outlet is positioned at the centre position at flue top, can make flue gas stream enter flue outlet discharge fuselage with the loss of minimum.The entrance that drives blower fan is positioned at fuselage front or top and installs filter additional, and for example screen pack further reduces driving oil droplet content in the air-flow, guarantees the blower fan cleaning inside.Particular location is determined than common by compressor flow and power consumption.Blower fan adopts centrifugal fan, drives air-flow by centrifugal fan and spiral case combination results, and the sealing joint of spiral case and high velocity air groove guarantees to drive air-flow and effectively is transported in the airslide and ejection.
Shown in Fig. 4 a to Fig. 4 c, it is symmetrical trapezoid cross section that the cross section of fluid channel of high velocity air groove has three kinds of embodiment: mode A, and minor face is the opening of groove, and aperture pitch is 1mm, and long edge lengths is 3mm, highly is 6mm; Mode B is right-angled trapezium, and aperture pitch, long edge lengths are with highly consistent with A; Mode C is the cross sectional shape of class rhombus, and opening is 1mm, highly is 6mm, and the widest part spacing is 3mm.
In a word, the invention provides a kind of malleation that adopts drives, can avoid oil smoke to enter blower fan system and the simple unobstructed range hood of oil smoke runner.The more traditional range hood of the discharge capacity of blower fan has been compared obvious decline, and simulation calculation result shows that compressor flow is about 1/3rd of conventional fan.Therefore the volume of blower fan and spiral case all can significantly reduce, and power consumption is also little.
Claims (7)
1. range hood, it is characterized in that, the relative airtight housing (2) that comprises cooking fume-collecting plate (1), is communicated with the cooking fume-collecting plate, with housing (2) be divided into gas flue and extraction sector installation portion dividing plate (3), be located at the airslide (4) in the gas flue, and be installed in blower fan (5) and spiral case (6) in institute's extraction sector installation portion; The notch of airslide upwards, its gas access seals with gas vent on the spiral case and is communicated with, the gas access of blower fan is positioned on the sidewall on range hood top, the outlet of gas flue is positioned at the top of range hood.
2. range hood as claimed in claim 1 is characterized in that, the place, gas access of blower fan arranges screen pack (7), is provided with arc deflector (8) in the gas flue.
3. range hood as claimed in claim 1 or 2 is characterized in that, the gas vent on the described spiral case is arranged on the symmetrical centre position of airslide (4); The entrance junction of described gas vent and airslide arranges sealing ring.
4. range hood as claimed in claim 1 or 2 is characterized in that, along the air motion direction, the area of section of airslide reduces gradually.
5. range hood as claimed in claim 4 is characterized in that, the cross section of described airslide is trapezoidal or rhombus.
6. range hood as claimed in claim 1 or 2 is characterized in that, the width of rebate of described airslide is 0.6-1.5mm.
7. range hood as claimed in claim 1 or 2 is characterized in that, described airslide is annular, near the madial wall of gas flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258172.4A CN103335348B (en) | 2013-06-24 | 2013-06-24 | A kind of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258172.4A CN103335348B (en) | 2013-06-24 | 2013-06-24 | A kind of range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103335348A true CN103335348A (en) | 2013-10-02 |
| CN103335348B CN103335348B (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310258172.4A Active CN103335348B (en) | 2013-06-24 | 2013-06-24 | A kind of range hood |
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| CN (1) | CN103335348B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444236A (en) * | 2015-12-31 | 2016-03-30 | 青海天地乐科技有限责任公司 | Special exhaust device for integrated cooker |
| CN107504531A (en) * | 2017-05-27 | 2017-12-22 | 宁波奇尘电子科技有限公司 | A kind of efficient lampblack absorber |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291601Y (en) * | 1997-04-01 | 1998-09-16 | 汤嘉乐 | Nozzle negative pressure cooking fume remover |
| CN2618080Y (en) * | 2003-02-20 | 2004-05-26 | 曹英军 | Non-clean cooker hood |
| CN2890698Y (en) * | 2006-04-05 | 2007-04-18 | 朱德华 | Air feeding type smoke exhaust system |
| CN201100702Y (en) * | 2007-10-15 | 2008-08-13 | 李一达 | A disassembly free oil smoke suction machine |
| CN202403319U (en) * | 2011-12-05 | 2012-08-29 | 富士工业株式会社 | Circulation type range hood |
| CN202734003U (en) * | 2012-06-02 | 2013-02-13 | 赵跃进 | Airfoil body relay type smoke exhaust ventilator free from being unpicked and washed |
| CN203364210U (en) * | 2013-06-24 | 2013-12-25 | 东南大学 | Range hood |
-
2013
- 2013-06-24 CN CN201310258172.4A patent/CN103335348B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291601Y (en) * | 1997-04-01 | 1998-09-16 | 汤嘉乐 | Nozzle negative pressure cooking fume remover |
| CN2618080Y (en) * | 2003-02-20 | 2004-05-26 | 曹英军 | Non-clean cooker hood |
| CN2890698Y (en) * | 2006-04-05 | 2007-04-18 | 朱德华 | Air feeding type smoke exhaust system |
| CN201100702Y (en) * | 2007-10-15 | 2008-08-13 | 李一达 | A disassembly free oil smoke suction machine |
| CN202403319U (en) * | 2011-12-05 | 2012-08-29 | 富士工业株式会社 | Circulation type range hood |
| CN202734003U (en) * | 2012-06-02 | 2013-02-13 | 赵跃进 | Airfoil body relay type smoke exhaust ventilator free from being unpicked and washed |
| CN203364210U (en) * | 2013-06-24 | 2013-12-25 | 东南大学 | Range hood |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444236A (en) * | 2015-12-31 | 2016-03-30 | 青海天地乐科技有限责任公司 | Special exhaust device for integrated cooker |
| CN107504531A (en) * | 2017-05-27 | 2017-12-22 | 宁波奇尘电子科技有限公司 | A kind of efficient lampblack absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103335348B (en) | 2015-08-26 |
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