CN103335348B - A kind of range hood - Google Patents
A kind of range hood Download PDFInfo
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- CN103335348B CN103335348B CN201310258172.4A CN201310258172A CN103335348B CN 103335348 B CN103335348 B CN 103335348B CN 201310258172 A CN201310258172 A CN 201310258172A CN 103335348 B CN103335348 B CN 103335348B
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- range hood
- airslide
- blower fan
- gas
- spiral case
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Abstract
The invention discloses a kind of range hood, relative airtight housing, dividing plate housing being divided into gas flue and extraction sector installation portion, the airslide be located in gas flue that comprise cooking fume-collecting plate, be communicated with cooking fume-collecting plate, and the blower fan be arranged in institute's extraction sector installation portion and spiral case; Upwards, its gas access seals with the gas vent on spiral case and is communicated with the notch of airslide, and the gas access of blower fan is positioned on the sidewall on range hood top, and the outlet of gas flue is positioned at the top of range hood.Advantage of the present invention comprises: oil smoke can be avoided to enter blower fan, make blower fan from fume pollution, reduces clean, increases the service life; Oil smoke passage of the present invention is simply unobstructed; The more traditional range hood of discharge capacity of blower fan has compared obvious decline; The volume of blower fan and spiral case significantly reduces, and power consumption is also little.
Description
Technical field
The present invention relates to range hood, the range hood that especially a kind of oil smoke is separated with blade.
Background technology
Range hood is widely used in the middle of family kitchen, for cooking in the oil smoke discharge chamber of generation.On market, the principle of hydrodynamics of range hood work can be summarized as substantially: by being arranged on the rotation of the centrifugal fan of range hood inside, negative-pressure sucking is produced at blower fan center, oil smoke below lampblack absorber sucked blower fan, is collected by spiral case after blower fan accelerates, guide outside discharge chamber.
There are two inevitable shortcomings in this operation principle: one, exhaust gases passes has and repeatedly bends, complex-shaped.Especially sharply change from entering blower fan to getting rid of this section of stream condition from volute outlet, energy consumption is very large, and this just requires that rotation speed of fan will just can provide enough greatly enough suction to produce specified throughput.But, improve the increase that rotation speed of fan can bring power consumption and noise.Use high-power blower fan also to make the volume of range hood very large simultaneously.Two, oil smoke mixed airflow has to pass through draught fan impeller.Type ripe on market, no matter how the position of blower fan and deflector changes, oil smoke all could must be discharged via the acceleration of blade, therefore blade in use for some time, inherently at a certain amount of grease of surface deposition, make blower fan no longer keep the dynamic equilibrium state dispatched from the factory, add vibrations and noise.
Also have some technology, " vortex type fume exhaust fan " that such as Chinese patent 01201987.9 proposes, although the blower fan of configuration has been shifted out oil smoke region, spinning updraft is utilized to form negative pressure source, but the suction of this negative pressure source is subject to the restriction of whirl cylinder shape, effective suction and good control can not be reached, fail to put on market.
Summary of the invention
Goal of the invention: the present invention will provide a kind of range hood, to solve the problem.
Technical scheme: a kind of range hood, relative airtight housing, dividing plate housing being divided into gas flue and extraction sector installation portion, the airslide be located in gas flue that comprise cooking fume-collecting plate, be communicated with cooking fume-collecting plate, and the blower fan be arranged in institute's extraction sector installation portion and spiral case; Upwards, its gas access seals with the gas vent on spiral case and is communicated with the notch of airslide, and the gas access of blower fan is positioned on the sidewall on range hood top, and the outlet of gas flue is positioned at the top of range hood.
The gas access place of blower fan arranges screen pack, is provided with arc deflector in gas flue.Gas vent on described spiral case is arranged on the symmetrical center positions of airslide; The inlet connection of described gas vent and airslide arranges sealing ring.Along 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: oil smoke can be avoided to enter blower fan, make blower fan from fume pollution, reduces clean, increases the service life; Oil smoke passage of the present invention is simply unobstructed; The more traditional range hood of discharge capacity of blower fan has compared obvious decline; The volume of blower fan and spiral case significantly reduces, and power consumption is also little.
Accompanying drawing explanation
Fig. 1 is structural perspective 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.
Detailed description of the invention
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 relatively airtight and be communicated with cooking fume-collecting plate;
Dividing plate 3 is for being divided into gas flue airtight part relative to extraction sector installation portion two by housing 2; 4 in gas flue be located at by airslide, and upwards, its gas access seals with the gas vent on spiral case and is communicated with notch; It is inner that blower fan 5 and spiral case 6 are arranged on institute's extraction sector installation portion; 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 gas access place of blower fan; Deflector 8 is arranged on gas flue inside front.Gas vent 11 on spiral case is arranged on the symmetrical center positions of airslide 4; The inlet connection of gas vent and airslide arranges sealing ring.Airslide cross section of fluid channel is up-narrow and down-wide shape, and in trapezoidal or rhombus, upwards, A/F is about 1mm in outlet.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 collects oil smoke and the deflector filtered, be arranged on the high velocity air groove of range hood inside, be arranged on the deflector above range hood edge, and the oil smoke passage be made up of internal partition, top spacer, shell.Be oil smoke runner with high velocity air groove exit normal direction.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, installs centrifugal fan in spiral case.Volute inlet communicates with kitchen, is provided with filter screen.The outlet of high velocity air groove is close to inside flue, and level is installed.Drainage plate above flue is circular arc thin plate, and symmetrical installation also arranges flue outlet in the centre of individual drainage plate.The entrance of high velocity air groove is arranged on filter screen side, and lateral attitude is the symmetrical center positions of airslide, and spiral case is installed and determined according to inner fan blade rotary direction, and the present embodiment is arranged on range hood position to the left.Airslide adds interface channel at two ends 1/4th place, and channel cross-section is rectangle or cylindrical, and top imperforation, end face communicates with airslide.
Operation principle of the present invention is: clean gas flow blower fan and spiral case system produced, be inducted in high velocity air groove by jockey, because airslide opening is very narrow, air-flow can upwards spray at a high speed, and drive airslide ambient air to move upward, below airslide, form negative pressure region, the cooking fume of net filtration is after filtration sucked flue.Overall air-flow moves upward, and is drained to exit discharges by internal partition.
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 high velocity air groove, malleation drives air-flow from the ejection of high velocity air groove, makes oil smoke enter blower fan system, pollutes blade.And the wider design in airflow path bottom can make air-flow fast, be full of whole airslide to low power consuming, make whole annular airflow groove can form the air-flow upwards sprayed, and A/F is very little, air-flow is sharply increased by slit hourly velocity, forms the high velocity air of lower upper ejection.The entrance of airslide is connected with volute outlet, by baffle plate and sealing ring sealing, air-flow can only be sprayed from narrow notch.Annular high velocity air slot is set to is close to internal face, makes to drive air-flow upwards to spray along wall, more easily drives soot gas to move upward, form negative pressure at the lower zone of groove.Simultaneously because the lower surface of groove has inhibition to oil smoke motion, and be arranged in wall place and can reduce oil smoke rising resistance, make oil smoke runner unobstructed.In a still further embodiment, the both sides spacing that optimal design annular airflow groove is longer, spacing is unsuitable excessive, ensures that the flue gas of annular center position effectively can be inhaled into flue.In other embodiments, below deflector is side-suction type deflector, and the integral thickness of range hood diminishes, and can make to change negative-pressure sucking and farthest be embodied.Thin wall barrier is had to separate between spiral case with flue.Its effect one prevents high velocity air near spiral case, forming eddy current, hinders the rising of air-flow; Two is form cavity in spiral case side, for the equipment such as later stage assembling electric control box provide clean space.Arc drainage plate is arranged at flue top, enables the flue gas of rising effectively converge to exit position and discharges, avoid resulting in blockage on flue top.Exhanst gas outlet is positioned at the centre position at flue top, flue gas stream can be made to enter flue outlet with minimum loss and discharge fuselage.Drive the entrance of blower fan be positioned at fuselage front or top and install filter additional, such as screen pack, reduce driving oil droplet content in air-flow further, ensure that blower interior cleans.Particular location is determined jointly by compressor flow and power dissipation ratio.Blower fan adopts centrifugal fan, drives air-flow to be combined by centrifugal fan and spiral case and produces, the sealing joint of spiral case and high velocity air groove, ensures to drive air-flow to be effectively transported to airslide interior and spray.
As shown in Fig. 4 a to Fig. 4 c, the cross section of fluid channel of high velocity air groove has three kinds of embodiment: mode A to be symmetric trapezium cross section, and minor face is the opening of groove, and aperture pitch is 1mm, and long edge lengths is 3mm, is highly 6mm; Mode B is right-angled trapezium, and aperture pitch, long edge lengths are consistent with A with height; Mode C is the cross sectional shape of class rhombus, and opening is 1mm, is highly 6mm, and the widest part spacing is 3mm.
In a word, the invention provides and a kind ofly adopt malleation to drive, oil smoke can be avoided to enter blower fan system and the simply unobstructed range hood of oil smoke runner.The more traditional range hood of discharge capacity of blower fan has compared obvious decline, and simulation result display 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 (5)
1. a range hood, it is characterized in that, relative airtight housing (2), the dividing plate (3) housing (2) being divided into gas flue and extraction sector installation portion, the airslide (4) be located in gas flue that comprise cooking fume-collecting plate (1), be communicated with cooking fume-collecting plate, and the blower fan (5) be arranged in described extraction sector installation portion and spiral case (6); Upwards, its gas access seals with the gas vent on spiral case and is communicated with the notch of airslide, and the gas access of blower fan is positioned on the sidewall on range hood top, and the outlet of gas flue is positioned at the top of range hood;
Gas vent on described spiral case is arranged on the symmetrical center positions of airslide (4); The inlet connection of described gas vent and airslide arranges sealing ring; Along air motion direction, the area of section of airslide reduces gradually;
Described airslide is annular airflow groove and internal face is close in position.
2. range hood as claimed in claim 1, it is characterized in that, the gas access place of blower fan arranges screen pack (7), is provided with arc deflector (8) in gas flue.
3. range hood as claimed in claim 1, it is characterized in that, the cross section of described airslide is trapezoidal or rhombus.
4. range hood as claimed in claim 1, it is characterized in that, the width of rebate of described airslide is 0.6-1.5mm.
5. range hood as claimed in claim 1, 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 CN103335348A (en) | 2013-10-02 |
| CN103335348B true 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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| Country | Link |
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| CN (1) | CN103335348B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444236B (en) * | 2015-12-31 | 2017-09-22 | 青海天地乐科技有限责任公司 | Integrated kitchen range ventilator |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103335348A (en) | 2013-10-02 |
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