CN2913898Y - Two-way blast air curtain of inner loop rolling suction type fume extractor - Google Patents
Two-way blast air curtain of inner loop rolling suction type fume extractor Download PDFInfo
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- CN2913898Y CN2913898Y CN 200520006542 CN200520006542U CN2913898Y CN 2913898 Y CN2913898 Y CN 2913898Y CN 200520006542 CN200520006542 CN 200520006542 CN 200520006542 U CN200520006542 U CN 200520006542U CN 2913898 Y CN2913898 Y CN 2913898Y
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- air curtain
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Abstract
The utility model relates to a bidirectional air-supplying air curtain of inner circulation sucking type range hood. A blower of the inner circulation sucking type range hood sends air to an air supply pipe of the air curtain. The air supply pipe is composed of two rows of annular air-curtain air outlets distributed with multiple air-curtain air supply holes, one row of air-curtain air outlets faces downward, and the other row of air-curtain air outlets faces an oil smoke inlet, thereby forming a hood type air curtain with bidirectional air supply. On one hand, the air curtain prevents scattering of oil smoke and guides oil smoke into the oil smoke inlet; on the other hand, the air curtain outputs air flow to lower pressure in the inner circulation sucking type range hood, so as to improve oil smoke sucking speed and operating effect. Meanwhile, the smoke hood is non-contact with the oil smoke, not adhered with oil; and maintenance-free, so the smoke hood can be omitted or replaced with decoration to beatify indoor environment, avoid hindrance to operation, and reduce the size of the range hood.
Description
Technical field
The utility model relates to a kind of air curtain apparatus, in particular for the air curtain apparatus at electronic exhaust fume collecting hood of range hood edge.
Background technology
Air curtain is a kind of invisible curtain wall, extensive use.Remove the electronic range hood of oil smoke in the family kitchen environment, the air curtain that blows is set downwards, be equivalent to extend exhaust fume collecting hood downwards, can improve oil fume pumping-clean rate greatly at its exhaust fume collecting hood edge.But air curtain that blows downwards and the cooking fume inverted running that upwards wafts and rise can form vortex in the exhaust fume collecting hood bottom, influence smoke discharging effect.Directly the electronic range hood of drawing-in type is if will set up air curtain on the market now, and must set up special blower fan is the air curtain air-supply, will certainly increase energy consumption, increases cost, and can not fundamentally solve many drawbacks of drawing-in type lampblack absorber on the present market.The patent of invention that we declare: umbrella cover type churning smoke exhaust (application number: 200310124169.X), and the patent of invention of declaring in the recent period: the entrainment internally-circulating cooker hood (application number: 200510106682.5) of band air curtain, all be that blower fan is shifted out smoke discharging pipe, utilize the air-flow formation low pressure core of rotation to entrainment oil smoke, the blower fan general power of configuration can be reduced to below 100 watts, has abandoned the method for operation of existing drawing-in type lampblack absorber fully.We are cannula-like by the Whirl entraining soot device of development, have eliminated the return air interference through repeatedly software simulation and optimum experimental type selecting, and the artificial eddy flow that this covering device is produced has stable velocity profile.The centrifugal force that utilizes the Whirl entraining oil smoke to produce is separated grease rapidly from oil smoke, process such as absorption after filtration again, can make the gas circulation utilization of Whirl entraining oil smoke, so the entrainment internally-circulating cooker hood of our development has been realized oil, cigarette zero-emission, got rid of and led to outdoor smoke discharging pipe, the electronic range hood that this entrainment internally-circulating cooker hood is become use as dust catcher.We find that in design and experiment if air curtain is not set, along with the operation of smoke exhaust ventilator, intrasystem pressure can improve rapidly, and produces " return air " (some gas of oil suction mouth place that is exactly smoke exhaust ventilator discharges).This phenomenon can utilize hydromechanical principle to explain, when the open loop system and the external world reached balance exactly, the gas flow that enters system should equate with the gas flow of outflow system.When just this entrainment internally-circulating cooker hood has only an oil suction mouth, must produce return air.But when air curtain is set, utilize the air curtain output gas flow to reduce the intrasystem pressure of smoke exhaust ventilator, certain condition just can be eliminated return air down and disturb.We also find simultaneously, suitably strengthen the air output of air curtain, and the speed that this smoke exhaust ventilator entrainments oil smoke is improved, corresponding lifting operational effect, and visible air curtain becomes the part of this smoke exhaust ventilator necessity.Therefore, how air curtain is set and becomes a key technology on the entrainment internally-circulating cooker hood of air curtain " band " practicability road.
Summary of the invention
The purpose of this utility model provides a kind of two-way air-supply air curtain of entrainment internally-circulating cooker hood, and the return air that can overcome entrainment internally-circulating cooker hood disturbs, and strengthens its suction capactity, improves oil fume pumping-clean rate simultaneously.
The technical solution adopted in the utility model is: tube connector stretches out from base plate, connect an outlet of the blower fan of air curtain ajutage and entrainment internally-circulating cooker hood, the air curtain gas outlet of downward air curtain gas outlet being installed on the air curtain ajutage and entering the mouth towards oil smoke, be arranged on the lower edge of exhaust fume collecting hood, the air curtain wind pushing hole is distributed in downward air curtain gas outlet and in the air curtain gas outlet of oil smoke inlet, the exhaust fume collecting hood that two-way air curtain is set links to each other with base plate.Exhaust fume collecting hood is that square straight tube, circular straight tube, umbrella are hood-shaped, also can cancel, and tube connector can be divided into several weeks that is separately positioned on the air curtain ajutage, and the air curtain wind pushing hole is circle or polygon.The tube connector that stretches out from entrainment internally-circulating cooker hood is connected to the air curtain ajutage, go out the interruption-forming air curtain in downward air curtain gas outlet and the air curtain gas that enters the mouth towards oil smoke, the air-flow of output reduces the intrasystem pressure of entrainment internally-circulating cooker hood on the one hand, form an invisible curtain wall on the other hand, both can stop oil smoke to scatter, and can lead oil smoke to enter smoke exhaust ventilator again.The technique effect of obtaining thus has: 1. air curtain can directly be blown by the blower fan of Whirl entraining soot device, does not need to add in addition air-supply arrangement, does not increase cost; 2. the air curtain output gas flow reduces the intrasystem pressure of entrainment internally-circulating cooker hood, and the speed that this smoke exhaust ventilator entrainments oil smoke is improved, and has promoted operational effect; 3. downward air curtain air-flow can stop oil smoke to scatter, and leads oil smoke to enter the oil smoke inlet towards the air curtain air-flow of oil smoke suction side, and oil smoke is all pumped; 4. the air curtain ajutage is arranged on the exhaust fume collecting hood lower edge, makes the not sticking oil of exhaust fume collecting hood, need not clean; 5. can replace exhaust fume collecting hood with jewelry attractive in appearance, both increase aesthetic feeling, not hinder culinary art again; 6. can get rid of exhaust fume collecting hood, both dwindle the volume of smoke exhaust ventilator, can cut down again with material and external packing expense.
This two-way hood-like air curtain that blows that is combined by the annular air curtain gas outlet of two rows is used for entrainment internally-circulating cooker hood can make this smoke exhaust ventilator be tending towards perfect, also is applicable to Whirl entraining type cooking fume exhauster simultaneously.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a vertical section of the present utility model organigram.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Fig. 3 is the B-B cross-sectional schematic of Fig. 2.
Fig. 4 is the air curtain wind pushing hole structural representation of air curtain gas outlet.
In the accompanying drawing: 1. entrainment internally-circulating cooker hood, 2. exhaust fume collecting hood, 3. downward air curtain gas outlet, 4. towards the air curtain gas outlet of oil smoke inlet, 5. base plate, 6. air curtain ajutage, 7. oil smoke inlet, 8. tube connector, 9. air curtain wind pushing hole.
The specific embodiment
In Fig. 1 and Fig. 2, the blower fan of entrainment internally-circulating cooker hood (1) has two outlets, tube connector (8) is received in one of them outlet, air curtain ajutage (6) is arranged on the lower edge of exhaust fume collecting hood (2), combine by downward air curtain gas outlet (3) with towards the air curtain gas outlet (4) that oil smoke enters the mouth, exhaust fume collecting hood (2) is that square straight tube, circular straight tube or umbrella are hood-shaped, links to each other with the base plate (5) of entrainment internally-circulating cooker hood (1).The two-way air-supply air curtain of Xing Chenging can stop oil smoke to scatter thus, can lead oil smoke to enter oil smoke inlet (7) again, the air curtain output gas flow has reduced the intrasystem pressure of entrainment internally-circulating cooker hood (1) simultaneously, makes the speed that this smoke exhaust ventilator entrainments oil smoke improve corresponding lifting operational effect.
In Fig. 3 and Fig. 4, tube connector (8) is provided with several, receives a week of air curtain ajutage (6) respectively, and the aperture direction of junction is from the horizontal by the θ angle.Downward air curtain gas outlet (3) is in vertical direction with the α angle, and the air curtain gas that enters the mouth towards oil smoke exports (4) from the horizontal by the β angle.In order to form uniform air curtain, downward air curtain gas exports (3) and exports distributing in (4) many circles or polygonal air curtain wind pushing hole (9) towards the air curtain gas that oil smoke enters the mouth.Satisfy the model of selected entrainment internally-circulating cooker hood and use mounting condition by regulating α, β, θ angle and corresponding size, thereby reach operational effect.
In this embodiment, two-way air-supply air curtain is surrounded the whole kitchen range top like an invisible cover, and oil smoke is all purified, and exhaust fume collecting hood does not contact with oil smoke simultaneously, and not sticking oil exempts to clean.So can get rid of exhaust fume collecting hood, perhaps replace exhaust fume collecting hood with jewelry attractive in appearance, both increased indoor attractive in appearancely, do not hinder operation, dwindled the volume of smoke exhaust ventilator again, can cut down with material and external packing expense.
Claims (4)
1, a kind of two-way air-supply air curtain of entrainment internally-circulating cooker hood, by entrainment internally-circulating cooker hood (1), exhaust fume collecting hood (2), downward air curtain gas outlet (3), air curtain gas outlet (4) towards the oil smoke inlet, air curtain ajutage (6), tube connector (8), air curtain wind pushing hole (9) is formed, it is characterized in that: tube connector (8) stretches out from base plate (5), connect an outlet of the blower fan of air curtain ajutage (6) and entrainment internally-circulating cooker hood (1), air curtain ajutage (6) is gone up the air curtain gas outlet (4) of downward air curtain gas outlet (3) being installed and entering the mouth towards oil smoke, be arranged on the lower edge of exhaust fume collecting hood (2), air curtain wind pushing hole (9) is distributed in downward air curtain gas outlet (3) and in the air curtain gas outlet (4) of oil smoke inlet (7), the exhaust fume collecting hood (2) that two-way air curtain is set links to each other with base plate (5).
2, the two-way air-supply air curtain of entrainment internally-circulating cooker hood according to claim 1 is characterized in that exhaust fume collecting hood (2) is hood-shaped for square straight tube, circular straight tube, umbrella, also can cancel.
3, the two-way air-supply air curtain of entrainment internally-circulating cooker hood according to claim 1 is characterized in that tube connector (8) can be divided into the week that several are separately positioned on air curtain ajutage (6).
4, the two-way air-supply air curtain of entrainment internally-circulating cooker hood according to claim 1 is characterized in that air curtain wind pushing hole (9) is circle or polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520006542 CN2913898Y (en) | 2005-12-29 | 2005-12-29 | Two-way blast air curtain of inner loop rolling suction type fume extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520006542 CN2913898Y (en) | 2005-12-29 | 2005-12-29 | Two-way blast air curtain of inner loop rolling suction type fume extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2913898Y true CN2913898Y (en) | 2007-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520006542 Expired - Fee Related CN2913898Y (en) | 2005-12-29 | 2005-12-29 | Two-way blast air curtain of inner loop rolling suction type fume extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2913898Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486638A (en) * | 2013-10-08 | 2014-01-01 | 罗琮贵 | Silent rotational-flow, full-absorption and energy-saving range hood with function of locking fume and rotational-flow fume-locking and fume-sending ring |
| CN109028214A (en) * | 2018-09-27 | 2018-12-18 | 成都前锋电子有限责任公司 | The hidden smoke exhaust ventilator of air curtain type |
| CN109268894A (en) * | 2018-10-16 | 2019-01-25 | 珠海格力电器股份有限公司 | Cigarette stove combined system |
| CN110090512A (en) * | 2018-01-27 | 2019-08-06 | 深圳市富能新能源科技有限公司 | Oil gas separator |
| CN110121620A (en) * | 2017-01-06 | 2019-08-13 | 三菱电机株式会社 | Heating device, air exchange system and method for exhausting |
-
2005
- 2005-12-29 CN CN 200520006542 patent/CN2913898Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486638A (en) * | 2013-10-08 | 2014-01-01 | 罗琮贵 | Silent rotational-flow, full-absorption and energy-saving range hood with function of locking fume and rotational-flow fume-locking and fume-sending ring |
| CN110121620A (en) * | 2017-01-06 | 2019-08-13 | 三菱电机株式会社 | Heating device, air exchange system and method for exhausting |
| CN110090512A (en) * | 2018-01-27 | 2019-08-06 | 深圳市富能新能源科技有限公司 | Oil gas separator |
| CN109028214A (en) * | 2018-09-27 | 2018-12-18 | 成都前锋电子有限责任公司 | The hidden smoke exhaust ventilator of air curtain type |
| CN109268894A (en) * | 2018-10-16 | 2019-01-25 | 珠海格力电器股份有限公司 | Cigarette stove combined system |
| CN109268894B (en) * | 2018-10-16 | 2024-04-30 | 珠海格力电器股份有限公司 | Combined system of smoke kitchen range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |