CN100427832C - Entrainment internally-circulating cooker hood with air curtain - Google Patents

Entrainment internally-circulating cooker hood with air curtain Download PDF

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Publication number
CN100427832C
CN100427832C CNB2005101066825A CN200510106682A CN100427832C CN 100427832 C CN100427832 C CN 100427832C CN B2005101066825 A CNB2005101066825 A CN B2005101066825A CN 200510106682 A CN200510106682 A CN 200510106682A CN 100427832 C CN100427832 C CN 100427832C
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air curtain
air
discharging pipe
smoke discharging
filter screen
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CNB2005101066825A
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CN1940392A (en
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司廷
丁德厚
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Shanshuile Shenzhen Environmental Technologies Co.,Ltd.
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司廷
丁德厚
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Abstract

The invention uses a fan with a cyclone cooking fume entraining means to separate from the cooking fume, so that on the one hand sending air forms an air curtain to isolate air and heat, and on the other hand sending air to a circulation groove makes the airflow rotate to form low-pressure core entrainment of the cooking fume. In the process of removing cooking fume, the centrifugal force produced by the rotary airflow makes the oil stain be separated and be collected in the vertical fume-removing pipeline, and meanwhile the exhausted airflow enters into a return sleeve to remove smoke dust and a peculiar smell through a filter screen and adsorption material and then return to the air inlet of the far for blowing-in again of the fan.

Description

The entrainment internally-circulating cooker hood of band air curtain
Technical field
The present invention relates to a kind of pneumatic dust removal system, especially remove the electronic range hood of oil smoke in the household kitchen environment.
Background technology
Electronic range hood is come into the household electrical appliance ranks, and oneself reaches half a century, but the blower fan of existing drawing-in type lampblack absorber blocks in smoke discharging pipe, the efficient of suction oil smoke is very low, producer has only the energy consumption that strengthens blower fan to remedy, its input power has reached more than 200 watts, and feasible air quantity of discharging and blast are all well beyond " GB/T17713-1999 range hood " request of national standard.We have proposed the Whirl entraining soot device and have declared patent of invention " double vortex three hole entrainment type fume exhaust fan " (application number: 200510065824.8) for this reason.The air-flow of Whirl entraining type cooking fume exhauster utilization rotation entrainments oil smoke, and blower fan and oil smoke are isolated, and the blower fan general power of configuration can be reduced to below 100 watts, and has got rid of many drawbacks of existing drawing-in type lampblack absorber, is the inexorable trend of electronic range hood development.
Yet Whirl entraining type cooking fume exhauster has kept a smoke discharging pipe that leads to outside the kitchen, still will be restricted in the use.At first,, need fan to ward off the air intake channel in addition, make smoke exhaust ventilator that a blast pipe and a smoke exhaust pipe are arranged like this in order to reach the purpose of exempting to clean, in shape with structure on complicated.Secondly, in modern multilayer residence, needing smoke discharging pipe to outdoor smoke evacuation is that a bend pipe could pass from wall, and the feasible like this airflow stability that enters the high speed rotation of smoke discharging pipe changes, not only influence the speed and the flow of inspiration oil smoke, also will dispose the smoke discharging pipe Way out.On the contrary, Whirl entraining type cooking fume exhauster is particularly suitable for upright smoke discharging pipe, because the air-flow of the high speed that Whirl entraining type cooking fume exhauster is discharged rotation, in upright smoke discharging pipe, not only carry stable, and constitute a cover centrifugal separator assembly with upright smoke discharging pipe, the grease in the oil smoke is separated rapidly in short distance by the centrifugal force that eddy flow produces.If but still will be to outdoor smoke evacuation, upright smoke discharging pipe is difficult to use in modern multilayer residence.
Summary of the invention
Whirl entraining type cooking fume exhauster is maximized favourable factors and minimized unfavourable ones in order to allow, synergy makes the transition, and we have developed the entrainment internally-circulating cooker hood of band air curtain of the present invention.
The technical solution used in the present invention is: the blower fan of Whirl entraining soot device is blown on the one hand and is formed air curtain trapping, heat insulation, and the circulating tanks of blowing on the other hand makes air-flow rotate formation low pressure core at a high speed and entrainments oil smoke.In the smoke evacuation process, the centrifugal force that swirling eddy produces separates grease and collects in upright smoke discharging pipe, the air-flow of Pai Chuing enters the backflow sleeve pipe through filter screen and sorbing material is removed flue dust and peculiar smell is got back to air inlet again simultaneously, and be used for blower fan and blow once again, thus can be recycling.The technique effect of obtaining thus has: 1. air curtain can directly be blown by blower fan, does not need to add in addition air-supply arrangement; 2. got rid of and led to outdoor smoke discharging pipe; 3. grease, flue dust and peculiar smell all can be removed, and blower fan is realized exempting to clean; 4. air-flow is recycling, and blower fan is particularly suitable for the luxurious kitchen of modern open type not in indoor direct exhausting.
Feature of the present invention is: the exhaust duct of blower fan has two outlets, and one is connected to the air curtain ajutage, and another is connected to " V " type circulating tanks; Whirl entraining soot device and upright smoke discharging pipe are formed one and are overlapped sorting unit efficiently, in upright smoke discharging pipe outside, backflow sleeve pipe of suit again, the outlet of upright smoke discharging pipe and the air inlet of institute's configuration blower fan all are surrounded, isolate with the outside, between this bilayer sleeve, establish the filtrate of filter screen and absorption peculiar smell again, and on the backflow casing wall, drive relief valve, the inside and outside pressure balance of control smoke exhaust ventilator.
The entrainment internally-circulating cooker hood power of band air curtain is low, and noise is little, and blower fan exempts to clean, and the air curtain trapping is heat insulation, has got rid of simultaneously to lead to outdoor smoke discharging pipe, has become the same electronic range hood that uses with dust catcher.
Description of drawings
Fig. 1 is a vertical section of the present invention structural map.
Fig. 2 is the A-A sectional structural map of Fig. 1.
In the accompanying drawing: 1, smoke discharging pipe, 2, filter screen and sorbing material, 3, relief valve, 4, parabolic type urceolus, 5, the hyperbolic-type horn mouth, 6, the blower fan exhaust duct, 7, centrifugal fan, 8, circulating tanks, 9, the oil smoke inlet, 10, cut oil groove, 11, air curtain ajutage, 12, air inlet, 13, the backflow sleeve pipe, 14, smoke discharging pipe outlet, 15, base plate.
The specific embodiment
In embodiment illustrated in figures 1 and 2, base plate (15) is the platform that each parts is installed, and combines together with exhaust fume collecting hood.The Whirl entraining soot device is extend in the parabolic type urceolus (4) by hyperbolic-type horn mouth (5), constitute a circulating tanks (8) that the cross section is V-shaped, the exhaust duct (6) of centrifugal fan (7) has two outlets, one communicates with circulating tanks (8), and one is connected with air curtain ajutage (11); The middle part of parabolic type urceolus (4) is established and is cut oil groove (10); Upright smoke discharging pipe (1) overcoat reinstalls stream sleeve pipe (13), establishes filter screen and sorbing material (2) and relief valve (3) in the interlayer of this bilayer sleeve; The sealing of the top of backflow sleeve pipe (13), bottom and base plate (15) fuse, and the outlet of smoke discharging pipe (1) all is surrounded with the outside together with air inlet (12) isolates; Relief valve (3) is installed in filter screen and sorbing material (2) below, closes automatically when pressing in releasing pressure automatically when interior pressure is higher than external pressure, external pressure are higher than, and plays the key effect of control smoke exhaust ventilator internal and external pressure balance.
Start centrifugal fan (7) during use, blow to air curtain ajutage (11) on the one hand, form air curtain and realize trapping, heat insulation, blow to circulating tanks (8) on the other hand, the air-flow that revolves in the generation forms the low pressure core, the oil smoke that culinary art is generated entrainments into hyperbolic-type horn mouth (5), and enter upright smoke discharging pipe (1) with last rotational gas flow and discharge, in the smoke evacuation process, the centrifugal force that swirling eddy produces is separated the grease in the oil smoke, the grease of accumulation trickles downwards and is held back eliminating by a section oil groove (10), grease from the air-flow that smoke discharging pipe (1) is discharged is separated, in the process that in backflow sleeve pipe (13), refluxes again through filter screen and sorbing material (12), a small amount of flue dust that contains in the air-flow and peculiar smell also can be filtered absorption and fall, so through centrifugal classification, filtration is adsorbed in the air-flow that is back to air inlet (12) again and has not been contained grease and flue dust and peculiar smell, can recycle and entrainment oil smoke once again, and make centrifugal fan (7) realize exempting to clean.

Claims (1)

1. entrainment internally-circulating cooker hood with air curtain, form by smoke discharging pipe (1), filter screen and sorbing material (2), relief valve (3), parabolic type urceolus (4), hyperbolic-type horn mouth (5), blower fan exhaust duct (6), centrifugal fan (7), circulating tanks (8), section oil groove (10), air curtain ajutage (11), backflow sleeve pipe (13), base plate (15), it is characterized in that: hyperbolic-type horn mouth (5) extend in the parabolic type urceolus (4), constitutes a circulating tanks (8) that the cross section is V-shaped; The exhaust duct (6) of centrifugal fan (7) is provided with two outlets, and an outlet is connected with air curtain ajutage (11), and another outlet communicates with circulating tanks (8); The middle part of parabolic type urceolus (4) is established and is cut oil groove (10); Upright smoke discharging pipe (1) overcoat reinstalls stream sleeve pipe (13), establishes filter screen and sorbing material (2) and relief valve (3) in the interlayer of this bilayer sleeve, and relief valve (3) is installed in filter screen and sorbing material (2) below; The sealing of the top of backflow sleeve pipe (13), bottom and base plate (15) fuse, and the outlet of smoke discharging pipe (1) all is surrounded with the outside together with air inlet (12) isolates; Air curtain ajutage (11) is installed on the base plate (15).
CNB2005101066825A 2005-09-26 2005-09-26 Entrainment internally-circulating cooker hood with air curtain Active CN100427832C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005101066825A CN100427832C (en) 2005-09-26 2005-09-26 Entrainment internally-circulating cooker hood with air curtain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005101066825A CN100427832C (en) 2005-09-26 2005-09-26 Entrainment internally-circulating cooker hood with air curtain

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CN1940392A CN1940392A (en) 2007-04-04
CN100427832C true CN100427832C (en) 2008-10-22

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100436949C (en) * 2007-04-29 2008-11-26 中国科学技术大学 Whirl entraining type cooking fume exhauster
CN102913970B (en) * 2012-10-18 2015-01-14 德意电器股份有限公司 Rotary air curtain rang hood with oil fume filter device
CN103017229A (en) * 2013-01-25 2013-04-03 嵊州市远见机械科技有限公司 Range hood without lampblack discharge
CN103383116A (en) * 2013-05-19 2013-11-06 关云龙 Range hood with jet wind shield protective panel
CN106152205A (en) * 2015-03-10 2016-11-23 任启祥 A kind of artificial spout range hood
CN105972662A (en) * 2016-06-29 2016-09-28 广东万和新电气股份有限公司 Rotary flow guiding devices and range hood using the same
CN106402972A (en) * 2016-11-07 2017-02-15 宁波方太厨具有限公司 Smoke exhauster

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7802041U1 (en) * 1978-01-24 1978-05-03 G. Bauknecht Gmbh, Elektrotechnische Fabriken, 7000 Stuttgart Cooker hood
DE4142474A1 (en) * 1991-12-20 1993-06-24 Bosch Siemens Hausgeraete Cooker hood with parallel ducts over grouped hotplates - directs fumes from each gp. to separate opening into extn. unit contg. one or two blowers
CN2154976Y (en) * 1993-04-15 1994-02-02 上海桅灯厂 Air-curtain cooker hood
JPH11337143A (en) * 1998-05-21 1999-12-10 Ikuji Shimada Gas appliance section not affecting ambient environment
CN2421562Y (en) * 2000-05-30 2001-02-28 曹培龙 Air curtain type fume exhauster
CN2511895Y (en) * 2001-05-18 2002-09-18 刘亚民 Separated cooker hood
CN1506622A (en) * 2002-12-09 2004-06-23 上海开心电器有限公司 Duplex centrifugal blower with great wind rate and less noise for kitchen ventilator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7802041U1 (en) * 1978-01-24 1978-05-03 G. Bauknecht Gmbh, Elektrotechnische Fabriken, 7000 Stuttgart Cooker hood
DE4142474A1 (en) * 1991-12-20 1993-06-24 Bosch Siemens Hausgeraete Cooker hood with parallel ducts over grouped hotplates - directs fumes from each gp. to separate opening into extn. unit contg. one or two blowers
CN2154976Y (en) * 1993-04-15 1994-02-02 上海桅灯厂 Air-curtain cooker hood
JPH11337143A (en) * 1998-05-21 1999-12-10 Ikuji Shimada Gas appliance section not affecting ambient environment
CN2421562Y (en) * 2000-05-30 2001-02-28 曹培龙 Air curtain type fume exhauster
CN2511895Y (en) * 2001-05-18 2002-09-18 刘亚民 Separated cooker hood
CN1506622A (en) * 2002-12-09 2004-06-23 上海开心电器有限公司 Duplex centrifugal blower with great wind rate and less noise for kitchen ventilator

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Free format text: CORRECT: ADDRESS; FROM: 230027 ROOM 730, BUILDING 7, WEST AREA, UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA, MAILBOX NO. 4, HEFEI CITY, ANHUI PROVINCE TO: 518172 NO. 31-33, AIXIN ROAD, CENTRAL WALK, LONGGANG DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE

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Address after: 518172 No. 31-33 love road, Central District, Longgang District, Guangdong, Shenzhen

Patentee after: Shanshuile Shenzhen Environmental Technologies Co.,Ltd.

Address before: 230027 box four, Anhui, Hefei Province, room 7, building 730, west end, University of Science and Technology of China

Co-patentee before: Ding Dehou

Patentee before: Si Ting