CN104848277A

CN104848277A - Novel air-blown type range hood

Info

Publication number: CN104848277A
Application number: CN201410732380.8A
Authority: CN
Inventors: 章建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-06
Filing date: 2014-12-06
Publication date: 2015-08-19

Abstract

The present invention provides a novel air-blown type range hood, which comprises two parts: an upper fume evacuation mechanism and a lower air-blowing mechanism. The fume evacuation mechanism comprises an oil-gathering unit, a fume-collection duct, a fume-evacuation duct and a fume-evacuation fan. The air-blowing mechanism comprises an air-blowing fan, an air feeding duct and a blow-off nozzle. The air-blowing mechanism blows off an air flow to drive cooking fumes to enter the fume evacuation mechanism. Meanwhile, the air flow forms an air curtain to surround cooking fumes, so that the cooking fumes cannot spread around. The range hood of the present invention has fewer parts and is high in fume evacuation rate, strong in anti-interference capability, convenient to clean, small in profile, clean and tidy.

Description

Novel blow wind fume exhaustiing fan

The present invention relates to household appliance technical field, is a kind of oil soot exhaustor---blow wind fume exhaustiing fan.

Smoke exhaust in the market, to be top suction type or side-suction type be all utilizes blower fan to produce suction inspiration oil smoke to be got rid of, the free rate of oil smoke depend on blower fan suction and and oil smoke between distance, reach higher free rate and just need smoking port position as far as possible close to frying pan and the higher blower fan of power, such design can be with the problem of serving, one, and when this makes to cook, operating space is little, especially side-absorption type smoke exhaust ventilator from frying pan very close to, interventional operations.And the casing position of top suction type is lower, have compressed operating space, easy impact operations person's head.Its two, extraneous air flowing easily produces larger interference to inspiration oil smoke makes oil smoke spread apart, and especially top suction type smoke exhaust, distance oil smoke is comparatively far away, and the time of air flow interaction is longer, possibility is larger.

The invention provides a kind of design completely newly, its principle and traditional smoke exhaust rely on suction completely different, it utilizes the induction of the air-flow of blowout to drive oil smoke to enter smoke collection pipe, a few bundle air-flow formation air curtain space encirclement oil smoke makes it spread simultaneously, and in the horizontal smoke exhaust pipe on smoke collection pipe top, air-flow laterally blows discharge oil smoke.In whole process, oil smoke is driven by air-flow, and follow air-flow and enter smoke collection pipe fast, diffusion time is few.Air curtain parcel oil smoke makes it not easily spread, and completely cutting off simultaneously due to air curtain, the interference of external air flow to oil smoke is isolated, and therefore oil smoke not easily dispels.Whole smoke evacuation process fan blade does not contact with oil smoke all the time, easy to clean.The parts of product are few, and volume is little, do not have an impact to cooking operation.

Summary of the invention:

In the present invention, a whole set of products is made up of two parts, as shown in Fig. 1, one be top smoke exhaust mechanism, comprise oil collector sump tank 1, smoke collection pipe 2, smoke exhaust pipe 3 and draft fan 4, two be below blower mechanism, comprise blower fan 5, air supply duct 6 and blowing mouth 7, can be arranged at the kitchen range top inner, also can blowing device be set in addition and be placed on the kitchen range top.Several blowing mouth is arranged around frying pan, blowing mouth blowout air-flow upwards, air-flow drives oil smoke fast upward motion, a few bundle air-flow forms air curtain and surrounds cavity simultaneously, that the air-flow of the one fixed width of 4 blowing mouths blowout from bottom to top flows shown in Fig. 1, four road air curtains surround square space, its cross section of the cavity formed is less, see view A-A and B-B, last cavity enters in horn-like smoke collection pipe 2 entrance, now the cross-sectional area of air curtain cavity is less than the mouth of pipe of smoke collection pipe 2, ensures that oil smoke all enters fume extractor.Connect the smoke exhaust pipe 3 of a level above smoke collection pipe 2, smoke exhaust pipe side draft fan 4 is dried, and oil smoke is flown out to opposite side, arranges oil collector sump tank 1 and collects waste oil so that cleaning flying out in way.

The cooking fume-collecting rate nearly 100% of this design, it is as follows that it collects mechanism of oil smoke, 1) high velocity air of blower fan 5 blowout plays induced effect, and oil smoke will along with air-flow fast upward motion, and the direction of motion is determined not easily to run chaotically everywhere, and decreases diffusion time.2) air curtain that a few bundle air-flow is formed surrounds oil smoke, limits oil smoke and spreads to surrounding.3) air-flow upwards drives oil smoke upwards to flow and adds that deep fat cigarette itself has automatic uptrend, and cause pressure drop in air curtain space, ecto-entad moves by the air of surrounding, stops oil smoke outwards to move diffusion.4) suction that smoke collection pipe 2 upper horizontal smoke exhaust pipe 3 high speed flowing gas produces makes oil smoke collect to smoke collection pipe 2 and smoke exhaust pipe 3 further.Through above several machining function, oil smoke can be limited in cavity that air curtain surrounds and to enter rapidly in smoke collection pipe 2 and smoke exhaust pipe 3 and discharge.Meanwhile, such design also makes fan leaf not contact oil smoke, is convenient to cleaning, and overall structure is simple, is convenient to manufacture and maintenance.

Oil smoke upwards time the negative pressure that causes can attract the gas of surrounding, if surrounding is shut by air curtain completely, negative pressure will be forced to extracting gases from air curtain, can destroy the integrality of air curtain, and destroy oil smoke ascendant trend.There is space between several blowing mouth in this design, make gas be able to supplement from the external world, and maintain the integrality of air curtain, be conducive to the eliminating of oil smoke.

The feature of this oil soot exhaustor is as follows:

1) oil fume free rate is high: through above-mentioned 4 kinds of machining functions, make oil fume free rate close to 100%.2) antijamming capability is strong: due to completely cutting off of air curtain, and the interference of ambient air stream movable property life can be isolated by air curtain to a great extent, and oil smoke is not disturbed by external air flow, reduces the possibility of diffusion.3) to manufacture and easy to maintenance: structure is simple, and parts are few.4) easy to clean: fan leaf does not contact oil smoke, what eliminate that daily cleaning fan brings is constant.5) profile is clean and tidy: parts are few and size is little, occupy little space, and its top need not large-area petticoat pipe, does not produce interference to operator.

Accompanying drawing illustrates:

Fig. 1 is blow wind fume exhaustiing fan principle schematic, and in figure, each part is: 1, oil collector sump tank, 2, smoke collection pipe, 3, smoke exhaust pipe, 4, draft fan, 5, blower fan, 6, air supply duct, 7, blowing mouth.

Fig. 2 is A-A and B-B place sectional view in Fig. 1, can find out that more up air curtain Space Cross Section is less.

Detailed description of the invention:

This oil soot exhaustor comprises two parts, 1) top is collection cigarette fume extractor, by oil collector sump tank 1, smoke collection pipe 2, smoke exhaust pipe 3, draft fan.Smoke collection pipe 2 mouth of pipe is vertically downward also in horn mouth shape, and smoke collection pipe 2 top is communicated with horizontally disposed smoke exhaust pipe 3.Smoke exhaust pipe 3 one end arranges the outlet that wind levels is blowed to the other end by draft fan 4.2) bottom is blowing device, is made up of blower fan 5, air supply duct 6 and blowing mouth 7, and pipeline is arranged around the kitchen range top in the form of a ring, and blowing mouth is installed in the appropriate location of pipeline.

During work, the blower fan 5 of bottom is blown, air-flow enters blowing mouth 7 along air supply duct 6, after a few bundle air-flow blows out from blowing mouth 7, drives oil smoke makes it move upward along with air-flow by swiftly flowing air-flow, and the air curtain of air-flow formation is simultaneously by space closed for formation one, oil smoke is limited in cannot spreading in this space, such air-flow enters the entrance of the smoke collection pipe 2 of top with oil smoke, and enters smoke exhaust pipe 3 by smoke collection pipe 2, as shown in Figure 1.Draft fan 4 blow flow of smoke exhaust pipe 3 one end, blows to the outlet of the other end by oil smoke, be provided with the oil collector sump tank 1 collecting waste oil and collect oil smoke in smoke exhaust pipe 3.

Claims

1. a novel blow wind fume exhaustiing fan, it is characterized in that not utilizing suction to get rid of oil smoke, but utilize the high velocity air of the blowing mouth blowout being distributed in frying pan surrounding to drive oil smoke to move to smoke collecting port, air-flow forms air curtain parcel oil smoke simultaneously, make it spread, reach very high free rate.

2. blow wind fume exhaustiing fan described in claim 1 comprises two parts, and one is the collection cigarette fume extractor of top, and two is that below is distributed in the blowing device (also can be made of one with the kitchen range top, be positioned over kitchen range top inside) of kitchen range top surrounding.

3. collect cigarette fume extractor described in claim 2 to be made up of oil collector sump tank, smoke collection pipe, smoke exhaust pipe, draft fan; The smoke collection pipe mouth of pipe is downward, and in horn mouth shape, oil smoke upwards enters smoke collection pipe by the mouth of pipe, and smoke collection pipe top is communicated with smoke exhaust pipe, and oil smoke enters smoke exhaust pipe from here; Smoke exhaust pipe one end arranges draft fan, and utilize high velocity air to blow outside oil smoke discharge chamber, fan does not contact with oil smoke.

4. blowing device described in claim 2 is made up of blower fan, pipeline and several blowing mouth, and a few bundle air-flows of blowing mouth blowout form taper cavity, and the vertex of a cone of cavity enters smoke collection pipe mouth; Cavity bottom is respectively restrainted between air-flow space and surrounding air UNICOM, and top is completely cut off by air curtain and surrounding air, and oil smoke is wrapped in indiffusion in cavity.