CN103697511B - Diffusion drainage device of range hood - Google Patents
Diffusion drainage device of range hood Download PDFInfo
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- CN103697511B CN103697511B CN201310627395.3A CN201310627395A CN103697511B CN 103697511 B CN103697511 B CN 103697511B CN 201310627395 A CN201310627395 A CN 201310627395A CN 103697511 B CN103697511 B CN 103697511B
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- control plate
- diffusion drainage
- smoke control
- diffusion
- range hood
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Abstract
The invention relates to a diffusion drainage device of a range hood. The diffusion drainage device comprises a diffusion drainage smoke control plate which is just opposite to an exhaust fume collecting hood air inlet of the ceiling type range hood, and is characterized in that the diffusion drainage smoke control plate has an inwards concave structure with a high middle part and a low periphery. Compared with the prior art, the diffusion drainage device disclosed by the invention has the advantages that the diffusion drainage smoke control plate having the inwards concave structure with the high middle part and the low periphery can ensure that the pressure distribution on the lower side and the edges of the range hood is improved and reconstructed; compared with a conventional range hood, the range hood has the advantages that the periphery of the diffusion drainage smoke control plate has a venturi effect to ensure that negative pressure is expanded outwards to the edges of the diffusion drainage smoke control plate, and an effective area for sucking oil fume is enlarged by about twice; after oil fume gas rises and contacts the edges of the diffusion drainage smoke control plate, the oil fume gas can move upwards quickly, a negative pressure passage is defined by the diffusion drainage smoke control plate and the inner surface of a smoke collecting cavity at the upper part of the diffusion drainage smoke control plate at the same time, and then the oil fume gas flows inwards to an air inlet of a blower along the negative pressure passage; by virtue of the inwards concave area, the oil smoke diffusion is greatly promoted.
Description
Technical field
The present invention relates to a kind of diffusion drainage device of range hood.
Background technology
Current existing top-sucking kitchen ventilator (is arranged on directly over kitchen range, thin type, dark type or tower range hood, do not comprise side draught and lower-discharging type) mostly version be: top arranges exhaust fume collecting hood and forms concave cavity, exhaust fume collecting hood is provided with air inlet and screen pack; Also have the range hood of a type, as: ZL200910096759.3 " a kind of range hood with smoke deflector ", is characterized in that the smoke deflector being provided with one piece of planar structure at intracavity bottom.But the top-sucking kitchen ventilator of these two kinds of main Types all exists the problem of inhaling not absolute oil cigarette, when oil smoke produces in a large number, oil smoke easily the past, left and right side spreads in a large number.The lampblack absorber essence of these types all only has the cavity of an indent in addition.
Current Urban House is based on high-rise and multilayer, and the soot gas produced after culinary art in kitchen concentrates discharge mainly through common flue.The peak period of cooking, when many users in same unit all concentrate cook and open range hood time, because common flue inner volume is limited, the back pressure of its inside is higher, range hood in the market above-mentioned generally all can cause the working region of the centrifugal blower operating point deflection low discharge producing negative pressure because of the increasing of resistance to flow output, cause the extremely acute deterioration of smoke absorption effect, noise strengthens greatly, sound quality is bad, and customer complaint increases.
In order to solve the problem, the current state of the art is mostly by promoting the air quantity of blower fan as the technical way promoting smoke absorption effect, but we can see from analysis above, promote air quantity, in the rush hour that start is relatively concentrated, the resistance in common flue can be larger, more can worsen the performance of blower fan, and to the range hood user of some little air quantity, the problem that flue gas pours in down a chimney also can be produced.
Summary of the invention
Technical problem to be solved by this invention provides a kind of air quantity that need not improve blower fan just significantly can promote smoke absorption effect for above-mentioned prior art, and the diffusion drainage device of range hood that the ability of anti-exhaust duct resistance also can promote greatly.
The present invention solves the problems of the technologies described above adopted technical scheme: the diffusion drainage device of this range hood is characterized in that: comprise just to the diffusion drainage smoke control plate that the exhaust fume collecting hood air inlet of range hood is arranged, described diffusion drainage smoke control plate has concave inward structure, the time of contact of this structure energy prolong smoke and plate, the decelerating effect to flue gas stream can be played, the indent position of central authorities provides spatial cache to the oil smoke risen simultaneously, the oil smoke continuing to rise provides lasting thrust or diffusion power to the oil smoke arriving diffusion drainage smoke control plate female parts, thus guide oil smoke flow to the both sides of diffusion drainage plate, enter air inlet.
Described diffusion drainage smoke control plate is the concave inward structure high in the middle of meeting, periphery is low, thus makes the oil smoke passage bore formed between diffusion drainage smoke control plate and exhaust fume collecting hood be diminishing trend.So diffusion drainage smoke control plate combines with exhaust fume collecting hood, the smoke collecting chamber of top-sucking kitchen ventilator is made to be formed with upper and lower two, double-deck concave cavity, thus create hydrodynamic effect and the characteristics of motion of compound, greatly improve the gathering of the thermal current under longer path, guide, accelerate in the comprehensive function such as suction, the attached wall that slows down, gas-liquid condensation separation, non-proliferation.
Diversified design can be there is in the mode of appearance of the diffusion drainage smoke control plate of this indent, wherein be preferably, the surrounding side that described diffusion drainage smoke control plate comprises middle plane and is connected with middle plane, between surrounding side and middle plane, there is angle, or, described diffusion drainage smoke control plate comprises multiple side, these sides are interconnected and make the pyramidal structure of diffusion drainage smoke control plate entirety in outer lug, diffusion drainage smoke control plate coordinates with the inner cavity of exhaust fume collecting hood the passage that together form fume-exhausting, also can be that described diffusion drainage smoke control plate comprises n side, n is more than or equal to 2, a side can be only had in these sides to have downward-sloping angle, or two sides can be only had to have downward-sloping angle, also or downward-sloping angle can be had in n-1 side, as long as be formed with concave inward structure.
The middle part of described diffusion drainage smoke control plate can be fixed on exhaust fume collecting hood by a connecting axle.
Certainly, for the ease of clean diffusion drainage smoke control plate, be hinged on exhaust fume collecting hood on rear side of described diffusion drainage smoke control plate, pass through buckle or latch or screw on front side of described diffusion drainage smoke control plate to be connected with exhaust fume collecting hood, like this when needs clean diffusion drainage smoke control plate, to come off on front side of diffusion drainage smoke control plate and the connection of exhaust fume collecting hood, namely turningly on rear side of diffusion drainage smoke control plate to get off, be convenient to user's wiping.
Described diffusion drainage smoke control plate periphery can also arrange sieve plate, filter plate is provided with strip filter opening, can plays the effect of rectification oil strain.
High on front side of when described diffusion drainage smoke control plate is installed, rear side is low, and surveys after diffusion drainage smoke control plate and is provided with strip lubricating cup, be convenient to Oil Guide and accept, receive fluid.
Preferably, the diffusion drainage smoke control plate of described concave inward structure is integrated part.
Compared with prior art, the invention has the advantages that: diffusion drainage smoke control plate has the indent form that centre is high, periphery is low, can make improve with the pressure distribution at edge and reconstruct on the downside of lampblack absorber; Compared with traditional range hood, diffusion drainage smoke control plate periphery, due to the existence of Venturi effect, makes negative pressure extend out to diffusion drainage smoke control plate edge, absorbs the significant surface territory enlarged proximal 2 times of oil smoke; Soot gas rise with diffusion drainage smoke control plate EDGE CONTACT after, can fast upwards, simultaneously the smoke collecting chamber inner surface on diffusion drainage smoke control plate and its top define a negative pressure channel, flue gas inwardly flows to air inlet place along this passage.In structure and the region of the middle indent of diffusion drainage smoke control plate, due to the structure of indent, make the negative pressure in this part region very low, flow of flue gas can be made to slow down, due to the existence of interior concave volume, accommodation can be played, gather the effect of oil smoke, when oil smoke amount is large, the very first time can not slowed down in this region by the oil smoke absorbed and be gathered, simultaneously again because attached wall effect is flowed to offside, and suck blower interior along the edge of offside, compared with the plane diffusion drainage smoke control plate not having this indent, the existence in the region of this indent, significantly improve the problem of oil smoke diffusion.
Accompanying drawing explanation
Fig. 1 is the perspective view of the smoke guide device of top-sucking kitchen ventilator in the embodiment of the present invention one;
Fig. 2 is the perspective view of diffusion drainage smoke control plate in the embodiment of the present invention one;
Fig. 3 is the perspective view (diffusion drainage smoke control plate closure state) of the smoke guide device of top-sucking kitchen ventilator in the embodiment of the present invention two;
Fig. 4 is the perspective view (diffusion drainage smoke control plate takes rear state apart) of the smoke guide device of top-sucking kitchen ventilator in the embodiment of the present invention two;
Fig. 5 is the perspective view of diffusion drainage smoke control plate in the embodiment of the present invention two;
Fig. 6 is the perspective view of the smoke guide device of top-sucking kitchen ventilator in the embodiment of the present invention three;
Fig. 7 is the perspective view of the smoke guide device of top-sucking kitchen ventilator in the embodiment of the present invention four;
Fig. 8 is the perspective view of another kind of form diffusion drainage smoke control plate in the embodiment of the present invention;
Fig. 9 is the perspective view of another form diffusion drainage smoke control plate in the embodiment of the present invention;
Figure 10 is the perspective view of another form diffusion drainage smoke control plate in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one
The smoke guide device of top-sucking kitchen ventilator as shown in Figure 1, comprise just to the diffusion drainage smoke control plate 1 that the exhaust fume collecting hood air inlet of top-sucking kitchen ventilator is arranged, smoke collecting chamber is formed in the exhaust fume collecting hood 2 of top-sucking kitchen ventilator, described diffusion drainage smoke control plate 1 has the concave inward structure that centre is high, periphery is low, so make diffusion drainage smoke control plate 1 combine with exhaust fume collecting hood 2, make the smoke collecting chamber of top-sucking kitchen ventilator be formed with upper and lower two, double-deck concave cavity, also make the oil smoke passage bore formed between diffusion drainage smoke control plate and exhaust fume collecting hood be diminishing trend.
In the present embodiment, the surrounding side 12 that described diffusion drainage smoke control plate 1 comprises middle plane 11 and is connected with middle plane, has angle between surrounding side and middle plane, thus makes diffusion drainage smoke control plate form concave inward structure, shown in Figure 2.Further, the middle part of diffusion drainage smoke control plate is fixed on exhaust fume collecting hood by a connecting axle.
Diffusion drainage smoke control plate has the indent form that centre is high, periphery is low, can make improve with the pressure distribution at edge and reconstruct on the downside of lampblack absorber; Compared with the range hood of traditional flat diffusion drainage smoke control plate, the diffusion drainage smoke control plate periphery of concave inward structure, because first three side, left and right and exhaust fume collecting hood form venturi accelerated passage, increase the speed that oil smoke enters blower fan, still negative pressure also can be made to extend out to diffusion drainage smoke control plate edge, absorb the significant surface territory enlarged proximal 2 times of oil smoke; After the diffusion drainage smoke control plate EDGE CONTACT of soot gas rising and concave inward structure, can fast upwards, simultaneously the diffusion drainage smoke control plate of concave inward structure and the smoke collecting chamber inner surface on its top define a negative pressure channel, flue gas inwardly flows to air inlet place along this passage.In structure and the region of the middle indent of diffusion drainage smoke control plate, due to the structure of indent, make the negative pressure in this part region very low, flow of flue gas can be made to slow down, due to the existence of interior concave volume, accommodation can be played, gather the effect of oil smoke, when oil smoke amount is large, the very first time can not slowed down in this region by the oil smoke absorbed and be gathered, simultaneously again because attached wall effect is flowed to offside, and suck blower interior along the edge of offside, compared with the plane diffusion drainage smoke control plate not having this indent, the existence in the region of this indent, significantly improve the problem of oil smoke diffusion.
Embodiment two
With embodiment one unlike, be hinged on exhaust fume collecting hood 2 on rear side of described diffusion drainage smoke control plate 1, be connected with exhaust fume collecting hood 2 by buckle 3 on front side of described diffusion drainage smoke control plate 1, shown in Fig. 3,4, and in the present embodiment, the area of diffusion drainage smoke control plate 1 middle plane 11 is less than the middle plane area in embodiment one, shown in Figure 5.
Embodiment three
With embodiment one unlike, high on front side of when described diffusion drainage smoke control plate 1 is installed, rear side is low, and survey after diffusion drainage smoke control plate 1 and be provided with strip lubricating cup 4, shown in Figure 6.Diffusion drainage smoke control plate 1 tilts backwards, and arranges strip lubricating cup at rear side, is convenient to Oil Guide and accepts, receives fluid.
Embodiment four
With embodiment two unlike, described diffusion drainage smoke control plate periphery is provided with sieve plate 5, filter plate is provided with strip filter opening, shown in Figure 7.Sieve plate 5 can start the effect of rectification oil strain.
In addition, the structure of described diffusion drainage smoke control plate can also have polytype, and such as diffusion drainage smoke control plate comprises multiple side, and these sides are interconnected and make the pyramidal structure of diffusion drainage smoke control plate entirety in outer lug, respectively see shown in Fig. 7,8,9,10.
Claims (6)
1. a diffusion drainage device for range hood, is characterized in that: comprise just to the diffusion drainage smoke control plate that the exhaust fume collecting hood air inlet of range hood is arranged, described diffusion drainage smoke control plate has concave inward structure; The diffusion drainage smoke control plate of described concave inward structure is integrated part; Described diffusion drainage smoke control plate is the concave inward structure that centre is high, periphery is low, thus makes the oil smoke passage bore formed between diffusion drainage smoke control plate and exhaust fume collecting hood be diminishing trend; High on front side of when described diffusion drainage smoke control plate is installed, rear side is low, and is provided with strip lubricating cup on rear side of diffusion drainage smoke control plate.
2. the diffusion drainage device of range hood according to claim 1, is characterized in that: the surrounding side that described diffusion drainage smoke control plate comprises middle plane and is connected with middle plane, has angle between surrounding side and middle plane.
3. the diffusion drainage device of range hood according to claim 1, is characterized in that: described diffusion drainage smoke control plate comprises multiple side, and these sides are interconnected and make the pyramidal structure of diffusion drainage smoke control plate entirety in outer lug.
4. according to the diffusion drainage device of the range hood in claims 1 to 3 described in any one claim, it is characterized in that: the middle part of described diffusion drainage smoke control plate is fixed on exhaust fume collecting hood by a connecting axle.
5. according to the diffusion drainage device of the range hood in claims 1 to 3 described in any one claim, it is characterized in that: be hinged on exhaust fume collecting hood on rear side of described diffusion drainage smoke control plate, pass through buckle or latch or screw on front side of described diffusion drainage smoke control plate and be connected with exhaust fume collecting hood.
6. the diffusion drainage device of range hood according to claim 1, is characterized in that: described diffusion drainage smoke control plate periphery is provided with sieve plate, filter plate is provided with strip filter opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627395.3A CN103697511B (en) | 2013-11-30 | 2013-11-30 | Diffusion drainage device of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627395.3A CN103697511B (en) | 2013-11-30 | 2013-11-30 | Diffusion drainage device of range hood |
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| Publication Number | Publication Date |
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| CN103697511A CN103697511A (en) | 2014-04-02 |
| CN103697511B true CN103697511B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310627395.3A Active CN103697511B (en) | 2013-11-30 | 2013-11-30 | Diffusion drainage device of range hood |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105091055B (en) * | 2014-05-20 | 2017-12-05 | 樱花卫厨（中国）股份有限公司 | The structure-improved of side extraction cooking fume extractor |
| CN104121614B (en) * | 2014-07-25 | 2016-12-28 | 宁波方太厨具有限公司 | A kind of rectification acceleration dish structure used for range hood |
| CN104165399B (en) * | 2014-07-25 | 2016-09-28 | 宁波方太厨具有限公司 | A kind of rectification acceleration dish structure used for range hood |
| CN104180413B (en) * | 2014-08-22 | 2017-05-03 | 广东海信家电有限公司 | Top-suction extractor hood with smoke deflector |
| CN105202604B (en) * | 2015-10-15 | 2017-08-29 | 宁波方太厨具有限公司 | A kind of range hood of band Dang Yan mechanisms |
| CN108006738B (en) * | 2017-06-07 | 2024-01-16 | 宁波方太厨具有限公司 | Range hood with changeable oil net gap |
| CN109373373A (en) * | 2018-09-20 | 2019-02-22 | 常州大学 | A kind of household cooker hood |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7712167A (en) * | 1976-11-11 | 1978-05-16 | Kemtron Properties Pty Ltd | EXHAUST SYSTEM. |
| CN2147448Y (en) * | 1992-09-25 | 1993-11-24 | 许胜发 | Smog exhauster |
| DE10209693A1 (en) * | 2002-03-06 | 2003-09-18 | Manfred H Langner | Cleaning process for waste air from extractor hoods in large kitchens uses extractor fan with curved intake channel, to deflect intake air along curved surface and through sprayed cleaning fluid |
| CN101701726A (en) * | 2009-10-30 | 2010-05-05 | 美的集团有限公司 | Fume exhaust fan |
| CN202141101U (en) * | 2011-05-12 | 2012-02-08 | 胡树标 | Self-controlled opening-closing structure of range hood guide plate |
| CN202947182U (en) * | 2012-09-21 | 2013-05-22 | 彭吉良 | Kitchen ventilator |
| CN203036721U (en) * | 2012-12-04 | 2013-07-03 | 广东万家乐燃气具有限公司 | Oil-way structure of extractor hood |
| CN203052775U (en) * | 2012-11-13 | 2013-07-10 | 宁波方太厨具有限公司 | Range hood |
| CN203628762U (en) * | 2013-11-30 | 2014-06-04 | 宁波方太厨具有限公司 | Diffusion flow guide device of range hood |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141101B (en) * | 2010-12-29 | 2012-11-07 | 莱州鲁达刹车片有限公司 | Environmental-protection high-speed car brake sheet and warm-pressing process of brake sheet |
-
2013
- 2013-11-30 CN CN201310627395.3A patent/CN103697511B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7712167A (en) * | 1976-11-11 | 1978-05-16 | Kemtron Properties Pty Ltd | EXHAUST SYSTEM. |
| CN2147448Y (en) * | 1992-09-25 | 1993-11-24 | 许胜发 | Smog exhauster |
| DE10209693A1 (en) * | 2002-03-06 | 2003-09-18 | Manfred H Langner | Cleaning process for waste air from extractor hoods in large kitchens uses extractor fan with curved intake channel, to deflect intake air along curved surface and through sprayed cleaning fluid |
| CN101701726A (en) * | 2009-10-30 | 2010-05-05 | 美的集团有限公司 | Fume exhaust fan |
| CN202141101U (en) * | 2011-05-12 | 2012-02-08 | 胡树标 | Self-controlled opening-closing structure of range hood guide plate |
| CN202947182U (en) * | 2012-09-21 | 2013-05-22 | 彭吉良 | Kitchen ventilator |
| CN203052775U (en) * | 2012-11-13 | 2013-07-10 | 宁波方太厨具有限公司 | Range hood |
| CN203036721U (en) * | 2012-12-04 | 2013-07-03 | 广东万家乐燃气具有限公司 | Oil-way structure of extractor hood |
| CN203628762U (en) * | 2013-11-30 | 2014-06-04 | 宁波方太厨具有限公司 | Diffusion flow guide device of range hood |
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| CN103697511A (en) | 2014-04-02 |
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