CN201401850Y

CN201401850Y - Range hood with smoke guide plate

Info

Publication number: CN201401850Y
Application number: CN2009201159289U
Authority: CN
Inventors: 李斌; 董一龙; 赵沛彪; 茅忠群; 诸永定; 曹亚裙
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2009-03-18
Filing date: 2009-03-18
Publication date: 2010-02-10
Anticipated expiration: 2019-03-18

Abstract

A range hood with a smoke guide plate is provided with a machine body, a smoke collecting cover and the smoke guide plate, wherein the smoke collecting cover is equipped with an air inlet, and the smoke guide plate is right opposite to the air inlet and keeps a preset distance from the smoke collecting cover, thereby forming an oil smoke passage between the smoke guide plate and the smoke collecting cover. The range hood is characterized in that the distance between the smoke guide plate and the smoke collecting cover corresponding to the oil smoke passage is gradually reduced from the periphery of the smoke guide plate to the direction of the air inlet. Compared with the prior art, the range hood with a smoke guide plate has the advantages that the smoke guide plate is used for generatingthe wall attachment effect, oil smoke flows uniformly without mixing, and further, the distance between the smoke guide plate and the smoke collecting cover is gradually reduced from the periphery tothe direction of the air inlet, thereby bringing convenience for generating Venturi effect and accelerating smoke absorption via a fan.

Description

A kind of range hood with smoke deflector

Technical field

The present invention relates to the remover apparatus of kitchen cooking flue gas, relate in particular to a kind of range hood with smoke deflector.

Background technology

China utility model patent ZL00263535.6 " the full circular deflector of smoke exhaust " improves traditional smoke exhaust, its structure is: be provided with predetermined fan in casing, and this casing is provided with an inlet scoop and air outlet with respect to the position of fan place, distolateral position, casing inlet scoop is provided with a deflector, maintain predetermined distance between this deflector and inlet scoop, simultaneously, also maintain preset space length between inboard each periphery of this deflector periphery and this casing, and form the smoke guide port of complete all circulating types, when making fan running, must oil smoke be sucked by each smoke guide port around the deflector and discharge.Though this patent has improved smoke exhaust efficiency to a certain extent, but still exist not enough: the one, be the oil smoke intake channel around its deflector, and fan is positioned at the rear of deflector by position intermediate, so the stroke of oil smoke is to walk around deflector earlier, in the middle of bending towards then, cause the oil smoke of four direction interfering with each other easily, cause noise significantly to increase on the one hand, on the other hand the smoke exhaust efficiency of also influence reality by the fan place; The 2nd, because unsettled around the deflector, oil droplet forms and suitable deflector down drips and the back side of deflector has inevitably, so can have a strong impact on user's mood, simultaneously also seem quite unhygienic, so the lower edge of deflector need be overlapped in the inboard of a plate washer, so, make the overall appearance of lampblack absorber seem very not neat on the one hand, make the oil smoke that enters the inlet scoop by the deflector lower edge need rise to the plate washer top edge earlier on the other hand, roll over downwards then, on the deflector lower edge, roll over again to the inlet scoop, make the oil smoke runner of this part become very tortuous, especially have one section part of bending downwards, be unfavorable for very much flowing of high-temperature oil smoke, thereby the actual smoke exhaust efficiency of influence; Moreover oil smoke degree of divergence when the bottom is lower, and is relatively concentrated, so the lower guide mouth is very important discharge flue, the design that obviously has above-mentioned bending shape oil smoke passage is difficult to reach gratifying effect.

The utility model content

Technical problem to be solved in the utility model be provide at the above-mentioned state of the art that a kind of rectification effect is good, oil smoke siphons away rapidly the range hood with smoke deflector.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of range hood with smoke deflector, it has body, exhaust fume collecting hood and smoke deflector, exhaust fume collecting hood is provided with air inlet, smoke deflector maintains predetermined spacing over against this air inlet setting and with exhaust fume collecting hood, thereby be formed with between the two at smoke deflector and exhaust fume collecting hood and hold the oil smoke passage that oil smoke passes through, it is characterized in that the described smoke deflector at corresponding described oil smoke passage place and the circumferential described air inlet direction outside described smoke deflector of the spacing between the described exhaust fume collecting hood are the gesture that reduces gradually.

As preferably, the inlet section that described lobed side outer part of exhaust fume collecting hood air inlet end face two sides and middle part have depression, accordingly, described smoke deflector two sides and described exhaust fume collecting hood air inlet end face keep certain reservation distance with form and the side outer part of described exhaust fume collecting hood between the vertical air inlet of side, the vertical air inlet passage of this side curves inwardly and forms side transverse air-intake mouth, and this side transverse air-intake mouth passage bore ecto-entad reduces gradually.

As preferably, inclination angle, described side transverse air-intake mouth passage longitudinal section is α, and α is the acute angle smaller or equal to 30 °, is the best with 7 °.

Further strengthen Venturi effect, quicken the oil suction cigarette, the initial bore of the vertical air inlet passage of described side is less than the initial bore of described side transverse air-intake mouth passage.

As preferably, the inlet section that outer part and middle part had depression before described exhaust fume collecting hood air inlet end face leading section was lobed, accordingly, the leading section of described smoke deflector and described exhaust fume collecting hood air inlet end face keep certain reservation distance with form and the preceding outer part of described exhaust fume collecting hood between preceding vertical air inlet, transverse air-intake mouth before vertical air inlet passage curves inwardly and forms before being somebody's turn to do, this preceding transverse air-intake mouth passage bore ecto-entad reduces gradually.

As preferably, described before inclination angle, transverse air-intake mouth passage longitudinal section be β, β is the acute angle smaller or equal to 30 °, is the best with 18 °.

Further strengthen Venturi effect, quicken the oil suction cigarette, the initial bore of described preceding vertically air inlet passage is less than the initial bore of transverse air-intake mouth passage before described.

Be convenient to manufacture, described smoke deflector is horizontal, and described exhaust fume collecting hood air inlet end face is by smooth transition in the middle of export-oriented and gradually to the air inlet of lower convexity until described exhaust fume collecting hood.

Compared with prior art, advantage of the present utility model is: smoke deflector is in order to form wall attachment effect, oil smoke flows evenly, crossfire does not take place, spacing between smoke deflector and the exhaust fume collecting hood is the gesture that reduces gradually from outer circumferentially air inlet direction, be convenient to form Venturi effect, quicken flue gas and siphoned away by blower fan, thus oil smoke inhale sooner, cleaner.

Description of drawings

Fig. 1 example structure schematic diagram.

Fig. 2 is the structural representation behind the removal housing.

Fig. 3 is along A-A direction cutaway view (no oil trap).

Fig. 4 is along B-B direction cutaway view (no oil trap).

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Embodiment: with reference to figure 1 and Fig. 2, present embodiment comprises smoke deflector 1, exhaust fume collecting hood 2 and body 3, smoke deflector 1 is horizontal, the inboard has oil trap 5, smoke deflector 1 is located on the exhaust fume collecting hood 2 air inlet end faces by two bolts 4, exhaust fume collecting hood 2 has middle part air inlet 10 (as shown in Figure 3 and Figure 4), and body 33 has blower fan and has air outlet.

As shown in Figure 3 and Figure 4, the leading section of exhaust fume collecting hood 2 air inlet end faces and two side projectioies, outer part 23 and side outer part 22 before forming respectively, medial recess forms inlet section 21.And inlet section 21 by the edge to middle smooth transition and gradually to the air inlet 10 of lower convexity until exhaust fume collecting hood.

The forward and backward end of smoke deflector 1 and two sides and exhaust fume collecting hood 2 air inlet end faces keep certain reservation distance, are formed with the vertical air inlet 6 of side and preceding vertical air inlet 9 between the side outer part of smoke deflector 1 and exhaust fume collecting hood 2.

As shown in Figure 3 and Figure 4, vertical air inlet 6 passages of side curve inwardly and form side transverse air-intake mouth 7, and these side transverse air-intake mouth 7 passage bore ecto-entads reduce gradually, and inclination angle, side transverse air-intake mouth passage longitudinal section is α, α is the acute angle smaller or equal to 30 °, is the best with 7 °.Transverse air-intake mouth 8 before preceding vertically air inlet 9 passages curve inwardly and form, preceding transverse air-intake mouth 8 passage bore ecto-entads reduce gradually, and inclination angle, preceding transverse air-intake mouth passage longitudinal section is β, and β is the acute angle smaller or equal to 30 °, is the best with 18 °.

The initial bore of preceding vertically air inlet 9 passages is less than the initial bore of preceding transverse air-intake mouth 8 passages; The initial bore of vertical air inlet 6 passages of side is less than the initial bore of side transverse air-intake mouth 7 passages.

Operation principle: soot gas runs into smoke deflector 1 in the process that rises, form Koln immediately and reach effect (being wall attachment effect), oil smoke is creeped along smoke deflector 1 attached wall, oil smoke flows and becomes even like this, soot gas also will flow by certain direction simultaneously, crossfire does not take place, and has played the effect of rectification.Through creeping of stretch journey, its oil smoke temperature reduces rapidly, thereby plays the effect of condensation.

Because side transverse air-intake mouth 7 passage bores and preceding transverse air-intake mouth 8 passage bores are by reducing gradually outside to inside, preceding, a left side at smoke deflector become the same Venturi effect of chimney with right trihedral, quicken soot gas and enter body 3, make oil smoke inhale sooner, cleaner, smoke deflector 1 can be plane or curved surface.

Claims

1, a kind of range hood with smoke deflector, it has body, exhaust fume collecting hood and smoke deflector, exhaust fume collecting hood is provided with air inlet, smoke deflector maintains predetermined spacing over against this air inlet setting and with exhaust fume collecting hood, thereby be formed with between the two at smoke deflector and exhaust fume collecting hood and hold the oil smoke passage that oil smoke passes through, it is characterized in that the described smoke deflector at corresponding described oil smoke passage place and the circumferential described air inlet direction outside described smoke deflector of the spacing between the described exhaust fume collecting hood are the gesture that reduces gradually.

2, the range hood of band smoke deflector according to claim 1, it is characterized in that the inlet section that described lobed side outer part of exhaust fume collecting hood air inlet end face two sides and middle part have depression, accordingly, described smoke deflector two sides and described exhaust fume collecting hood air inlet end face keep certain reservation distance with form and the side outer part of described exhaust fume collecting hood between the vertical air inlet of side, the vertical air inlet passage of this side curves inwardly and forms side transverse air-intake mouth, and this side transverse air-intake mouth passage bore ecto-entad reduces gradually.

3, the range hood of band smoke deflector according to claim 2 is characterized in that inclination angle, described side transverse air-intake mouth passage longitudinal section is α, and α is the acute angle smaller or equal to 30 °.

4, the range hood of band smoke deflector according to claim 3 is characterized in that the initial bore of the initial bore of the vertical air inlet passage of described side less than described side transverse air-intake mouth passage.

5, the range hood of band smoke deflector according to claim 2, it is characterized in that the inlet section that lobed preceding outer part of described exhaust fume collecting hood air inlet end face leading section and middle part have depression, accordingly, the leading section of described smoke deflector and described exhaust fume collecting hood air inlet end face keep certain reservation distance with form and the preceding outer part of described exhaust fume collecting hood between preceding vertical air inlet, transverse air-intake mouth before vertical air inlet passage curves inwardly and forms before being somebody's turn to do, this preceding transverse air-intake mouth passage bore ecto-entad reduces gradually.

6, the range hood of band smoke deflector according to claim 5 is characterized in that described preceding inclination angle, transverse air-intake mouth passage longitudinal section is β, and β is the acute angle smaller or equal to 30 °.

7, the range hood of band smoke deflector according to claim 6 is characterized in that the initial bore of the initial bore of described preceding vertically air inlet passage less than transverse air-intake mouth passage before described.

8, according to the range hood of the described band smoke deflector of arbitrary claim in the claim 1 to 7, it is characterized in that described smoke deflector is horizontal, and described exhaust fume collecting hood air inlet end face is by smooth transition in the middle of export-oriented and gradually to the air inlet of lower convexity until described exhaust fume collecting hood.