CN201488079U

CN201488079U - Direct-discharge-type smoke exhaust ventilator

Info

Publication number: CN201488079U
Application number: CN2009201778626U
Authority: CN
Inventors: 刘洪华
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-07
Filing date: 2009-09-07
Publication date: 2010-05-26
Anticipated expiration: 2019-09-07

Abstract

The utility model relates to a direct-discharge-type smoke exhaust ventilator which comprises a fan and an oil smoke filter that are connected with an external power supply, a repulsive polar plate, a dust collecting polar plate and a peripheral component, wherein the included angle between an air inlet surface of the smoke exhaust ventilator and the horizontal plane is within the range of 60-89 degrees; a dielectric layer is added in front of the repulsive polar plate of the smoke exhaust ventilator; a bypassing flow plate and a light tube are added at the rear part of the dust collecting polar plate; titanium dioxide powder is coated on the surface layer of the bypassing flow plate and the light tube; hook-shaped structure is added at the end parts of the repulsive polar plate and the dust collecting polar plate; and the light tube is a UVC tube; and the grade of the titanium dioxide powder is nanoscale. The direct-discharge-type smoke exhaust ventilator has reasonable design, can filter more than 99% of oil smoke, directly discharges the filtered oil smoke into the atmosphere, needs no chimney flue, reduces the discharge of harmful substances in the atmosphere, purifies the air, is beneficial to environmental protection, and eliminates the fire hazard caused by oil dirt; furthermore, as the oil smoke is filtered inside the smoke exhaust ventilator for one time and then can be directly discharged into the atmosphere, the cost is saved, large installation position can be selected for the smoke exhaust ventilator, and the smoke exhaust ventilator is convenient for installation.

Description

The straight-line range hood

Technical field

The utility model relates to a kind of cooking apparatus, particularly a kind of straight-line range hood.

Background technology

The range hood of prior art, general and the kitchen sink of blower fan be arranged in parallel, it is the top that air exhauster is positioned at the kitchen sink, be 180 ° of angles with the kitchen sink, and the oil smoke that discharges in the pot just is evacuated in the range hood by blower fan, in the lampblack absorber oil smoke is separated, cigarette enters flue, and isolated oil is then taken in the oil box that is provided with below the blades of range hood and accommodated.

The air intake surface that oil smoke has only buoyancy by high-temperature oil smoke to rise to range hood in the pot is inhaled into, but this process is unsettled, and the buoyancy that oil smoke produces changes with weather, with changing season.Simultaneously, oil smoke spreads apart in uphill process, or is subjected to the influence of beam wind and drifts about, and therefore, can not guarantee that a range hood can be with the whole sucking-offs of oil smoke, let alone filter cleaning fully.

General range hood is located at the top of the kitchen range top, and air intake surface is 1.8m～2.0m overhead, because the shielding action of the kitchen range top, the following air of kitchen range top table top can't flow through pot.

The blower fan of another range hood is vertical with the kitchen sink to be provided with, and promptly the blower fan and the kitchen sink are 90 ° of settings, and the distance of the lampblack absorber of this structure and the kitchen sink needs quite near, exceeds 0.6 meter, and then the smoke pumping effect of blower fan will be affected greatly.

So manufactory just uses high-power, big flow blower fan, general more than 1 kilowatt, big air quantity blower fan brings big mobile wind speed, and big mobile wind speed brings unfavorable to electrodecontamination.The present level of electrodecontamination surpasses 1.5 meter per seconds at wind speed and just can not reach whole purifications.

The range hood of prior art is because the defective of self structure, can't be fully with fume purifying, can only further oil smoke be separated through the cigarette fontanel by the oil smoke that flue will not purify, grease is deposited in cigarette fontanel bottom (or having part to be attached to cigarette fontanel wall), and cigarette enters atmosphere through flue.

But in commercial business district, building chimney may not, many restaurants are closed because of oil smoke discharge is subjected to complaining, some with the device of static also from not chimney, and smolder everywhere, this mainly is because traditional range hood covers on the top of the kitchen range top, has used the result of big flow blower fan.

Find temporarily in the prior art not limited by flue, only depend on range hood inside just oil smoke all can be purified, must oil smoke directly can not entered the range hood of atmosphere through flue.

Summary of the invention

The purpose of this utility model is to overcome the defective of prior art, provides a kind of simple and reasonable for structure, perfect in shape and function, optimization, and fume purifying rate height, the oil smoke that can directly range hood be absorbed enters the straight-line range hood of atmosphere.

The purpose of this utility model is achieved through the following technical solutions:

The straight-line range hood, comprise the blower fan and cooking fume filter, repulsion pole plate and control of dust pole plate and the peripheral assembly that are connected with external power supply, the air intake surface of this lampblack absorber and horizontal plane angle are between 60 °～89 °, the repeller prelaminar part of this lampblack absorber is set up dielectric layer, the dust collecting electrode postlaminar part is set up and is streamed plate and light pipe, the described top layer of streaming plate and light pipe scribbles titania powder, and hook formation is set up in the end of described repulsion pole plate and control of dust pole plate end.

Described light pipe is the UVC pipe.

The rank of described titania powder is a nanoscale.

The utility model can reach following beneficial effect after adopting technique scheme:

1, reasonable in design.The utility model decomposes the filtration of filtration three roads with mechanical filter and electro static filtering and light and is incorporated into one, and is reasonable in design.

2, environmental protection.The utility model is realized the filtration of oil smoke more than 99% on improvements over the prior art, oil smoke after filtering directly can be entered atmosphere, need not flue, reduced the discharging of harmful substance in atmosphere, and purified air, help environmental protection.

3, reduced the danger coefficient of fire.The utility model eliminated grease in the inside of range hood, thereby eliminated the danger that grease causes fire.

4, reduced cost.The utility model adopts the inner purifying oil fume of eliminating of range hood, needs oil smoke is entered flue unlike prior art, purifies once more through flue, oil smoke could be entered atmosphere.Building need design flue in the prior art, and need clean flues at set intervals, expends a large amount of manpower and materials, and the utility model only through the inner primary purification of range hood, just can directly enter atmosphere with oil smoke.

5, simplified building structure.After the utility model came into operation, building need not to design flue, has reduced building cost, and facilitation has been played in the reduction of room rate.

6, easy to install.The utility model needn't be as prior art, the installation position of range hood will be with regard to the position of flue, the kitchen range top can be installed on any position in kitchen, the installation position of range hood selects face big, having overcome that the prior art kitchen is provided with must be with regard to the defective of flue position, the design mobility strong of position, kitchen, lampblack absorber is easy for installation.

Description of drawings

Fig. 1 is the structural representation that repels pole plate and control of dust pole plate in the prior art;

Fig. 2 is the structural representation that repels pole plate and control of dust pole plate in the utility model;

Fig. 3 is the prior art constructions principle schematic;

Fig. 4 is a structural principle schematic diagram of the present utility model;

Fig. 5 is a left view of the present utility model.

Description of reference numerals

1, cooking fume filter 11, blower fan 2, dentation corona electrode (dielectric layer) 3, repel pole plate 4, control of dust pole plate 5, stream plate 6, light pipe 7, ozone filter 8, air intake surface A, air inlet B, air outlet.

The specific embodiment

Below in conjunction with drawings and the specific embodiments the utility model is described in further detail:

Referring to Fig. 1

Fig. 1 is the structural representation that repels pole plate and control of dust pole plate in the prior art.In Fig. 1, described repulsion pole plate 3 and control of dust pole plate 4 are overlap joint setting, and this structure causes oil gas to stay in the limited time of repelling pole plate 3 and control of dust pole plate 4, and oil gas promptly is pumped down to flue without abundant filtration.

Referring to Fig. 2

Fig. 2 is the structural representation that repels pole plate and control of dust pole plate in the utility model.In Fig. 2, described repulsion pole plate 3 has increased a hook formation with the overlap joint inner edge of control of dust pole plate 4 in the termination of left and right sides side, the height of this hook formation is less than the width that repels between pole plate 3 and the control of dust pole plate 4, be unlikely to seam is stopped up, this structure has increased the resistance of oil with air current flow, thereby increased the efficient of mechanical cooking fume filter, about percent 90 granular substance is filtered by it in the oil smoke, has improved the purifying rate of oil smoke greatly.

Referring to Fig. 3

Fig. 3 is the prior art constructions principle schematic.In Fig. 3, range hood comprises the blower fan 11 that is connected with power supply, be located at the cooking fume filter 1 of blower fan 11 front portions, repel pole plate 3 and control of dust pole plate 4 and peripheral assembly, when blower fan 11 is evacuated to cooking fume filter 1 with the oil smoke in the pot, simultaneously, oil smoke through repel pole plate 3 and control of dust pole plate 4, air outlet B drains into flue, there is defective in the range hood structure of this structure, oil smoke time of staying in range hood is short, range hood can not need the complete purification filtering of oil smoke through the further purifying oil fume of flue.

Referring to Fig. 4

Fig. 4 is a structural principle schematic diagram of the present utility model.In Fig. 4, the straight-line range hood is set up dentation corona electrode 2 (dielectric layer) in the front portion of repelling pole plate 3 on the prior art basis, be added with pulse voltage on the described dentation corona electrode 2, its mean value is 12,000 volt, it and ground connection pole plate constitute corona field, when the air-flow that has a small amount of oil smoke enters, granular substance more than 5 microns is with electric charge, the control of dust pole plate 4 absolutely eliminations that are grounded then.

Described repulsion pole plate 3 has with the identical electric charge of dentation corona electrode 2, when pollutant flows through, repelled and flown to control of dust pole plate 4, add upper dielectric layer above the repulsion pole plate 3 of the present utility model, repulsion pole plate 3 has added and can add higher voltage behind the dielectric layer, therefore, make the oil smoke in the air-flow that flows through be subjected to bigger repulsive force, make electrostatic cleaner that higher purification efficiency be arranged.

In addition, the grain flow mistake of carbon and so on is arranged in air-flow, it can cause electric arc on repulsion pole plate 3 and control of dust pole plate 4, and this electric arc weakens high voltage electric field, thereby has reduced the efficient that purifies.After repulsion pole plate 3 adds upper dielectric layer, there is higher voltage just to have electric arc and produces, so improved the efficient of electrostatic cleaner and the stability of work.

Smell remaining in the oil smoke is not remove filtering through preceding twice, and general, activated carbon is adopted in the removal of smell, and still, the activated carbon vapour lock is big, and saturated easily, and activated carbon costs an arm and a leg.

The utility model has been set up behind control of dust pole plate 4 and has been streamed plate 5 and light pipe 6, and described effect of streaming plate 5 is that air-flow is formed whirlpool in the behind of opening, makes air-flow center on light pipe 6 and flows, and allows more times of smell in the air-flow be subjected to the irradiation of light.

The described surface of streaming plate 5 and light pipe 6 all scribbles nano level titania powder, and described light pipe is the UVC pipe, the ultraviolet light of two kinds of wavelength of its emission C-band, and a kind of wavelength has the function that the long molecular link of organic gas is interrupted; Another kind of wavelength has the function that oxygen molecule is resolved into oxygen atom and form ozone simultaneously; Ozone can be with the smell oxidation.

Simultaneously, under the catalytic action of titanium dioxide, the irradiation of ultraviolet light is decomposed the moisture in the air-flow and the generation of hydroxyl (0H) is arranged.Hydroxyl is a strong oxidizer.Like this, decompose section at light, all smells are decomposed and discharge with air-flow.

The utility model has been set up ozone filter 7 between light pipe 6 and blower fan 11, described ozone filter 7 all filters the smell of oil smoke, reaches smell and purifies fully.

Exhaust velocity of the present utility model is greater than 15 meter per seconds, and the effect of air outlet B is to drive the outlet ambient air, and the mixing of trying one's best is with the dispersion of heat and the decomposition of ozone in the acceleration air-flow.

Referring to Fig. 5

Fig. 5 is a left view of the present utility model.In Fig. 5, the air intake surface 8 of described straight-line range hood and horizontal plane angle (can be provided with) between 60 °～89 ° as required, and greater than 10cm, bottom thickness is greater than 20cm apart from kitchen range top distance in the bottom of range hood.

Selecting for use of blower fan: greater than 1500 cubic metres/hour, pressure is greater than 200 handkerchiefs, and on one meter width, the air intake surface wind speed is greater than 2.0 meter per seconds. its to the engagement range of oil smoke greater than 60 centimetres.

The setting of this structure has overcome the defective of prior art air intake surface horizontal by 180 ° and 90 ° settings, makes range hood thorough more comprehensively to the seizure of oil smoke.

Other technologies of the present utility model can adopt prior art.

Most preferred embodiment of the present utility model is illustrated, and the further expansion that those of ordinary skill in the art makes according to the utility model all falls into protection domain of the present utility model.

Claims

1. straight-line range hood, comprise the blower fan and cooking fume filter, repulsion pole plate and control of dust pole plate and the peripheral assembly that are connected with external power supply, it is characterized in that: the air intake surface of this lampblack absorber and horizontal plane angle are between 60 °～89 °, the repeller prelaminar part of this lampblack absorber is set up dielectric layer, the dust collecting electrode postlaminar part is set up and is streamed plate and light pipe, the described top layer of streaming plate and light pipe scribbles titania powder, and hook formation is set up in the end of described repulsion pole plate and control of dust pole plate end.

2. straight-line range hood according to claim 1 is characterized in that: described light pipe is the UVC pipe.

3. straight-line range hood according to claim 1 is characterized in that: the rank of described titania powder is a nanoscale.