CN201454270U - Filter of range hood - Google Patents

Abstract

The utility model discloses a filter of a range hood, which comprises a front plate, a back plate, air outlets, oil smoke channels and oil discharge outlets, wherein air inlets of the oil smoke channels are uniformly distributed on the front plate; the front plate and the back plate are arranged oppositely and have a certain spacing distance; a longitudinal baffle plate is arranged between the front plate and the back plate, and the space between the front plate and the back plate is divided into square oil smoke channels which are mutually independent through the longitudinal baffle plate; the oil discharge outlets are arranged at the lower ends of the oil smoke channels, and the air outlets are arranged at the upper ends of the oil smoke channels; an air guiding plate which is arranged at the inner sides of the air inlets inclines to the inside of the oil smoke channels; and a gap is formed between the lower edge of the air guiding plate and the longitudinal baffle plate. Compared with the prior art, the utility model has the advantages that the oil smoke exhausting rate is improved by about 20%-30%, the separating effect of oil and gas is obvious, the oil smoke purifying rate reaches more than 90%, and the noise is lowered by more than 10 decibels; the utility model also has the advantages of simple structure, convenient maintenance and cleanness and long service life; and in addition, the filter does not need to be replaced for life, the main engine of the range hood does not need to be disassembled and cleaned, and the discharged air is clean and environment-friendly.

Description

The filter of lampblack absorber

Technical field the utility model relates to a kind of lampblack absorber parts, the particularly filter of lampblack absorber.

Background technology is along with economic development, and the continuous enhancing of the raising of living standards of the people and environmental consciousness uses fume exhausting fan to handle more and more universal to the pernicious gas of restaurant, wineshop, family kitchen.The cooking fume purification apparatus of prior art, mainly contain three classes, one class is to adopt the equipment of electrostatic processes, utilize blower fan oil smoke gas to be introduced in the high voltage electric field of set " cellular " battery lead plate generation of this equipment, and the elaioleucite of oil smoke gas carried out second-time burning, produce carbon dioxide, water and unburned solids; Second class is the equipment of water smoke absorption or water spray processing method, utilize blower fan that oil smoke gas is introduced this equipment,, oil smoke gas is lowered the temperature by the water smoke that sprays in the equipment, gaseous state oil is reduced into fluid oil, and people are called this process " oil, gas separate " usually; The 3rd class is to adopt screen pack, and by the motion path of conversion oil smoke, high-temperature oil smoke fully contacts with the filter walling of flue in the motion process of fume pipeline, and the oil smoke of contact portion is lowered the temperature rapidly, makes the oily gentle separation in the oil smoke; Simultaneously, the tortuous flue path that changes is to the centrifugal action that oil smoke produces, and makes the oily gentle automatic separation in another part oil smoke of high-speed motion, oilyly becomes fluid oil with filter walling of flue perikinetic aggregation, and sticks on the walling of flue, and gas then is discharged from.Above-mentioned three class cooking fume control equipments are because factors such as its structure, cost are applicable to that respectively the fume purifying in different occasions kitchen is handled.The lampblack absorber that is used for family kitchen mainly adopts the filter of filter structure, is the critical component of family kitchen lampblack absorber and cross filter.

At present, use more a kind of network structure filter, adopt one or more layers wire netting or be provided with the metallic plate of through hole, and the screen pack that other materials is made is placed on the passage of soot gas circulation, when soot gas passed through, the oil smoke in the gas contacted with the web plate of filter, and its heat is filtered web plate and absorbs, gaseous state oil in the oil smoke condenses into liquid oil droplet attached on the screen pack, reaches the purpose of separating oil smoke.For strengthening filter effect, adopt the multiple filtration net usually, the filtering holes between each layer is suitably dislocation successively, to increase the contact area of oil smoke and screen pack.Because filter certainly exists clear opening, oil smoke directly passes through from aperture and does not contact with screen pack, thereby the oil smoke separating effect is relatively poor; Simultaneously, because separated oil droplet diminishes the effective area of through hole attached on the screen pack gradually, in addition the oil smoke hole of blocking filter, therefore, filter needs frequent clean or replacing, otherwise lampblack absorber just can't normally use.

Chinese patent publication number CN1416936, open May 14 2003 date, invention and created name " cooking fume filtering plate ", a kind of cooking fume filtering plate is disclosed, comprise header board and back plate, and by air inlet, exhaust outlet and between front wing panel, rear fender forms the oil smoke passage of turnover, though it has certain oil to oil smoke, the gas separating effect, but because of being subjected to its structural limitations, its flue is narrow, the flue path is short, cause the oil smoke clean absorption rate low, the fume purifying rate is low, noise is big to wait deficiency, even the shriek of can empathize sound and similar " birdie ", simultaneously, the oil smoke passage of its filter stops up easily, its cleaning is also very difficult, even oil smoke passage obstruction back mediation, can only change filter.To the improvement of this structure, those skilled in the art also did some effort, attempted by improving the cross sectional shape of front wing panel and rear fender, improve the oil smoke channel path, improve the oil smoke separating effect with realization, but produce little effect, its intrinsic defective can not fundamentally be resolved.

Chinese patent publication number CN2542320, open April 2 2003 date, invention and created name " a kind of grating tank type oil smoke remover ", a kind of grating tank type oil smoke remover is disclosed, be included in to increase on the basis of aforementioned filter stainless steel cloth adsorption layer and whirlwind tube separating layer structure are arranged, though its oil, gas separating effect increase, but there are complex structure, deficiency that manufacturing cost is high, simultaneously, clean absorption rate is low still can't to be solved with the big defective of noise, and cleaning is difficult and oil smoke passage blocking problem is more apparent outstanding.

At present, no matter known be Chinese style or European family kitchen lampblack absorber, its clean absorption rate is about 70%～85%, noise is about 53～58 decibels, no purifying rate index. along with the continuous improvement of people's living standard, people's health perception and environmental consciousness improve constantly, requirement to the family kitchen lampblack absorber is more and more higher, therefore, be badly in need of a kind of clean absorption rate and purifying rate height, noise is little, cleaning is the family kitchen lampblack absorber easily. and on the market a kind of family kitchen cooking fume remover that adopts filter to combine with electrostatic processes has appearred now, its oil smoke clean absorption rate and purifying rate all have bigger raising than common lampblack absorber, but because the filter that adopts still belongs to the version of aforementioned lampblack absorber filter, the noise that it is intrinsic, the defective of aspects such as cleaning can't overcome, simultaneously, the carbon dioxide that the elaioleucite second-time burning produces, unburned solids is emitted in the atmosphere, does not meet modern environmental protection concept, so be further improved.

The summary of the invention the purpose of this utility model is exactly at the deficiencies in the prior art, provide a kind of oil smoke clean absorption rate height, good separating effect, simple in structure, the oil smoke passage does not have obstruction, cleaning is convenient, noise is low, the lampblack absorber main frame exempts to unpick and wash, discharge the lampblack absorber filter of environmental protection.

For achieving the above object, the utility model adopts following technical scheme:

A kind of filter of lampblack absorber, comprise header board, back plate, air outlet, oil smoke passage, oil drain out, the air inlet of oil smoke passage is distributed on the header board, the outline of header board and back plate adapts, header board and back plate are separated with certain distance between being oppositely arranged also, are provided with midfeather between described header board and the back plate, and midfeather is separated into separate rectangle or square oil smoke passage with the space between header board and the back plate, the lower end of oil smoke passage is an oil drain out, and the upper end of oil smoke passage is an air outlet; The inboard wind deflector that is provided with of described air inlet tilts to the oil smoke channel interior, is provided with the gap between the lower limb of wind deflector and the midfeather, and air inlet forms infundibulate by wind deflector and midfeather.Be arranged on the oil collection box of the lampblack absorber of oil smoke passage below, make the outlet oil extraction of oil smoke passage lower end and not oil-feed cigarette.

After adopting as above technical scheme, the oil smoke of disperse above the kitchen range top, under the suction of lampblack absorber blower fan, lower limb and the slit between the midfeather through air inlet, wind deflector enter in the oil smoke passage, because the effect of wind deflector, oil smoke forms swirl shape oil smoke stream in the oil smoke passage at wind deflector rear portion, the oil smoke of vortex contacts successively with speed in the mode of whirlwind with the wall of oil smoke passage in the oil smoke passage or clashes into, and this contact makes the oil of the high-temperature gas in the contact portion oil smoke and steam " cooling rapidly in certain distance " be reduced into fluid oil and water; Another part is because the centrifugal action of whirlwind, oil, water and dust in this a part of oil smoke are separated automatically with air, adhere to and condense on the walling of flue after isolated oil, water and dust and the collision of filter walling of flue, thereby realize that oil, water separate with gas with dust.Sump oil moisture and dust is discharged from the below and oil collection box is collected, and the sump oil of collection is used for iundustrial oil after can concentrating purification.Simultaneously, oil smoke continues to rise to air outlet direction spiral along the oil smoke passage, and continues to carry out separation process, up to discharging from the gas outlet.Because the oil smoke passage is long and oil smoke is the motion mode of vortex, the holdup time of oil smoke in passage is long, so the oil smoke cooling is fully, and oily, thorough, the good separating effect of gas separation, the air cleaning of discharge and meet new environmental protection concept.Simultaneously, air inlet incoming air area of the present utility model is more than 10 times of prior art incoming air area, and the clean absorption rate of oil smoke is compared with 70%～80% of prior art, significantly improves to more than 99%; And the fume purifying rate performance more than 90% of its brilliance, prior art is incomparable especially, and existing national standard or industry standard all do not require the index of fume purifying rate to lampblack absorber; Because the plane of the header board and the back plate of filter is close in the discharge of the oil smoke of filter, counter plate or base plate do not produce the active force perpendicular to the plane, so the noise of the noise in purifying oil fume when work during, reduce more than 10 decibels than the operating noise of the lampblack absorber of prior art much smaller than existing filter purifying oil fume work; And structure of filter is simple; The oil smoke passage that it is straight-through because aisle spare is big, so passage does not have obstruction, it is light, convenient, fast that maintenance is kept a public place clean, and need not changed filter all the life.

In addition, adopt not oil-feed of the lampblack absorber inside cigarette and the dust of the utility model filter, do not have greasy, motor rotation wearing and tearing are very few, main frame need not torn machine open and clean, more reduced and torn the damage of machine cleaning open motor, so use the life-span of soot motor of the present utility model, than much longer times of the life-span of soot motor. and the wind wheel oily dirt free is greasy, need not clean, can not occur in the smoke exhaust ventilator cleaning process that the greasy of colloid is rich in scraping and the phenomenon of having destroyed dynamic equilibrium, prolong the service life of lampblack absorber. so adopt the lampblack absorber main frame of the utility model filter need not unpick and wash, long service life.

Preferably, midfeather is fixedlyed connected with the back plate.Midfeather is the aluminium alloy extrusions that the two is connected to one with the back plate, and the oil smoke channel shape is regular, reduces labor content, the production efficiency height, and maintenance is kept a public place clean convenient.

Preferably, the outside of header board is provided with handle, and handle is fixedlyed connected with the back plate by screw, and handle is positioned at the top of air inlet; The longitudinal section, lower end of the header board groove shape that takes the shape of the letter U, the U-lag width adapts with the gross thickness that back plate and midfeather form; Described oil drain out is located at the bottom of header board lower end U-lag; Guaranteeing that header board is connected on the reliable basis with the back plate, simple in structure and firm.

Preferably, the both sides of header board are equipped with the bound edge of bending backward, and bound edge is positioned at the outside of outermost midfeather on the plate of back; The middle part bound edge that opposite side is provided with in the wind deflector of a side setting and the air inlet in the described air inlet, all constitute one with header board, the middle part bound edge is located at a side of midfeather, there are not cutting edge, fast mouth on the header board, guarantee to safeguard dust alleviation work safety, and, help reducing the air resistance coefficient of air inlet by wind deflector and middle part bound edge that header board bends, thereby further improve separating effect, reduce oil smoke and separate noise.

Preferably, the air inlet upper end is more than the 45mm with the distance of air outlet; Intilted wind deflector, the angle between wind deflector plane and the preceding board plane is α, the angle value of angle α is 25 °～75 °; Air inlet air intake topmost, its eddying motion path is nearest, and the isolation of purified time is the shortest, and suitable distance can be guaranteed clean-up effect; Simultaneously, the angle with rational value can guarantee cigarette machine ventilation maximum, the windage minimum improves oil smoke clean absorption rate, oil, gas separating effect and extremely low noise content, be existing any cigarette machine can't be obtained.

Preferably, the angle value of angle α is 55 ° between wind deflector plane and the preceding board plane, and the vortex that the excessive oil smoke of angle forms in the oil smoke passage is insufficient, and separating effect is not good; Angle too small, the windage of wind deflector is big, and noise is big when oil, gas separation.

Preferably, the gap that is provided with between the lower limb of wind deflector and the midfeather, the width in gap is L, its span is 4～10mm; The size in gap is the width in gap, determines according to the parameters such as physical dimension of oil smoke passage usually.

Preferably, be square at the oil smoke channel cross-section, the desirable gap width L when its length of side B is 25mm is 8mm; , further guarantee the clean-up effect of oil smoke.

Preferably, back plate is made up of the first back plate that cooperatively interacts and the second back plate, is fixedly connected with along the pipe of axis opening at the back side of the first back plate, and pipe is parallel to the seam direction of plate after two; Correspondence position at the second back plate is fixedly connected with the cylinder bar, cylinder bar and pipe interference fits, and the cylinder bar is fixedlyed connected with plate behind another piece by the angle bar plate, and the A/F of pipe is less than cylinder bar diameter, and greater than the thickness of angle bar plate; The distance of first pipe of back on the plate to the cylinder bar of the distance of seam side and the second back plate to the seam side equates; Reduce back plate and midfeather thickness, weight reduction.

The utility model beneficial effect compared with prior art is, the oil smoke clean absorption rate improves about 20%～30%, and oil, gas are remarkable from effect, and the fume purifying rate reaches more than 90%, and noise reduces more than 10 decibels; And simple in structure, safeguard keep a public place clean conveniently, need not change all the life that filter, lampblack absorber main frame exempt to unpick and wash, the clean environmental protection of air discharged, long service life.

Description of drawings Fig. 1 is that axis of no-feathering of the present utility model is surveyed schematic diagram;

Fig. 2 is a structural front view of the present utility model;

Fig. 3 is the A--A cutaway view among the utility model Fig. 2;

Fig. 4 is the C portion enlarged drawing among the utility model Fig. 3;

Fig. 5 is the D--D cutaway view among the utility model Fig. 2.

The specific embodiment is further described the utility model below in conjunction with accompanying drawing:

Referring to Fig. 1, Fig. 2, the filter of lampblack absorber, comprise header board 1, back plate 2, air outlet 4, oil smoke passage 6, oil drain out 7, the air inlet 3 of oil smoke passage 6 is distributed on the header board 1, the outline of header board 1 and back plate 2 adapts, header board 1 and back plate 2 are separated with certain distance between being oppositely arranged also, be provided with midfeather 5 between described header board 1 and the back plate 2, midfeather 5 is separated into separate oil smoke passage 6 with the space between header board 1 and the back plate 2, the lower end of oil smoke passage 6 is an oil drain out 7, and the upper end of oil smoke passage 6 is an air outlet 4; Described air inlet 3 is located at the middle part of oil smoke passage 6, the distance of air inlet 3 upper ends and air outlet 4 is 45mm, the air inlet 3 inboard wind deflectors 61 that are provided with are to oil smoke passage 6 inner inclination, be provided with the gap between the lower limb of wind deflector 61 and the midfeather 5, air inlet 3 forms infundibulate by wind deflector 61 and midfeather 5; The cross section of described oil smoke passage 6 is the square of 25mm for length of side B; Described header board 1 is made by corrosion resistant plate.

Referring to Fig. 3, described midfeather 5 is aluminium alloy extrusions that the two is connected to one with back plate 2.

Referring to Fig. 1, Fig. 3, the outside of described header board 1 is provided with handle 8, and handle 8 is fixedlyed connected with back plate 2 by screw, and handle 8 is positioned at the top of air inlet 3; The longitudinal section, lower end of the header board 1 groove shape that takes the shape of the letter U, the U-lag width adapts with the gross thickness that back plate 2 and midfeather 5 form; Described oil drain out 7 is located at the bottom of header board 1 lower end U-lag.

Referring to Fig. 3, the both sides of described header board 1 are equipped with the bound edge 11 of bending backward, and bound edge 11 is positioned at the outside of outermost midfeather 5 on the plate 2 of back; The middle part bound edge 12 that opposite side is provided with in the wind deflector 61 of a side setting and the air inlet 3 in the described air inlet 3 all constitutes one with header board 1, and middle part bound edge 12 is located at a side of midfeather 5.

Referring to Fig. 4, described intilted wind deflector 61, the angle between wind deflector 61 planes and header board 1 plane is α, the angle value of angle α is 55 °.

Referring to Fig. 4, be provided with the gap that width L is 8mm between the lower limb of described wind deflector 61 and the midfeather 5.

Referring to Fig. 3, described back plate 2 is made up of the first back plate 23 that cooperatively interacts and the second back plate 24, is fixedly connected with the pipe 21 along the axis opening at the back side of the first back plate 23, and pipe 21 is parallel to the seam direction of plate after two; Correspondence position at the second back plate 24 is fixedly connected with cylinder bar 22, cylinder bar 22 and pipe 21 interference fits, cylinder bar 22 is fixedlyed connected with plate behind another piece by angle bar plate 25, and the A/F of pipe 21 is less than cylinder bar 22 diameters, and greater than the thickness of angle bar plate 25; The distance of the pipe 21 of first back on the plate 23 to the cylinder bar 22 of the distance of seam side and the second back plate 24 to the seam side equates.

Operation principle: briefly explain below in conjunction with the course of work to the filter of the utility model lampblack absorber:

The oil of the filter of the utility model lampblack absorber, gas separation process are to realize like this, referring to Fig. 4, spread in the mixing oil smoke of kitchen range top top, under the suction function that the lampblack absorber blower fan produces, enter the lower cavity in the oil smoke passage 6 through the lower limb of air inlet 3, wind deflector 61 and the slit between the midfeather 5, because the effect of wind deflector 61, oil smoke is the left surface of midfeather 5 along the right part sidewall of oil smoke passage 6 obliquely, and the bottom on oil smoke passage 6 right sides operation, and produce collision, refraction with the wall that is touched; Simultaneously, because the blast of oil smoke is far below the blast of outside, slit in the oil smoke passage of wind deflector 61 bottoms, therefore, oil smoke spreads along refractive direction rapidly at the oil smoke passage 6 of wind deflector 61 bottoms, collide the conduit wall of bottom oil smoke passage 6 successively, thereby form the swirl shape oil smoke stream of represented swirl direction among Fig. 4; The vortex oil smoke is the long-time repeatedly collision channel wall that is detained also in the oil smoke passage, the oil smoke of vortex contacts successively with speed in the mode of whirlwind with the wall of oil smoke passage 6 in the oil smoke passage or clashes into, and this contact makes the oil of the high-temperature gas in the contact portion oil smoke and steam " cooling rapidly in certain distance " be reduced into fluid oil and water; Another part is because the centrifugal action of whirlwind, oil, water and dust in this a part of oil smoke are separated automatically with flow air, adhere to and condense on the walling of flue after the collision of the walling of flue of the oil smoke passage 6 of isolated oil, water and dust and filter, thereby realize separating of oil, water and dust and air.

Referring to Fig. 5, flue gas is under the effect of pump drainage blower fan, when continuing vorticla motion, move to the air outlet direction along oil smoke passage 6, form spiralling air therefrom and flow, and carry out above-mentioned " oil, gas " separation process repeatedly, until 4 discharges from the gas outlet, therefore, its oil, gas separate thoroughly, good separating effect, the air cleaning environmental protection of discharge.

The fluid, water and the dust that are trapped in oil smoke passage 6 inwalls are constantly accumulated, are increased, the greasy dirt of accumulation is under the effect of gravity, flow downward along oil smoke passage 6 inwalls, progressively discharge from the oil drain out 7 of lower end, focus on (not shown) after the oil collection box collection by lampblack absorber, be used for iundustrial oil but reclaim after the purified treatment.

Regular maintenance is kept a public place clean only to be needed the stainless steel header board 1 of filter is cleaned and cleaned, and periodic cleaning and cleaning oil collection box get final product.Referring to Fig. 1.

In the time need cleaning to the oil smoke passage 6 of filter, take off filter, soak a few minutes with cleaning agent after, filter rinsed washes, or scrub oil smoke passage 6 with nylon bruss that is similar to test-tube brush or hairbrush and get final product.

In case of necessity,, pull down the attachment screw of handle 8 referring to Fig. 1, after header board 1 is pulled out from the below, can be easily to back, the U-lag medial surface of header board 1, and each face of back plate 2 and midfeather 5 cleans; Then, get final product, keep a public place clean conveniently so the utility model is safeguarded according to above-mentioned opposite order installation.

Claims (9)

1. the filter of a lampblack absorber, comprise header board (1), back plate (2), air outlet (4), oil smoke passage (6), oil drain out (7), the air inlet (3) of oil smoke passage (6) is distributed on the header board (1), it is characterized in that: be provided with midfeather (5) between described header board (1) and the back plate (2), midfeather (5) is separated into separate oil smoke passage (6) with the space between header board (1) and the back plate (2), the lower end of oil smoke passage (6) is oil drain out (7), and the upper end of oil smoke passage (6) is air outlet (4); The inboard wind deflector (61) that is provided with of described air inlet (3) is provided with the gap to oil smoke passage (6) inner inclination between the lower limb of wind deflector (61) and the midfeather (5), and air inlet (3) forms infundibulate by wind deflector (61) and midfeather (5).

2. the filter of lampblack absorber according to claim 1 is characterized in that: described midfeather (5) is fixedlyed connected with back plate (2).

3. the filter of lampblack absorber according to claim 1, it is characterized in that: the outside of described header board (1) is provided with handle (8), and handle (8) is fixedlyed connected with back plate (2) by screw, and handle (8) is positioned at the top of air inlet (3); The longitudinal section, lower end of header board (1) the groove shape that takes the shape of the letter U, the U-lag width adapts with the gross thickness of back plate (2) and midfeather (5) formation; Described oil drain out (7) is located at the bottom of header board (1) lower end U-lag.

4. the filter of lampblack absorber according to claim 1 is characterized in that: the both sides of described header board (1) are equipped with the bound edge (11) of bending backward, and bound edge (11) is positioned at the outside that back plate (2) is gone up outermost midfeather (5); The middle part bound edge (12) that wind deflector (61) that a side is provided with in the described air inlet (3) and the interior opposite side of air inlet (3) are provided with all constitutes one with header board (1), and middle part bound edge (12) is located at a side of midfeather (5).

5. the filter of lampblack absorber according to claim 1 is characterized in that: described air inlet (3) upper end is more than the 45mm with the distance of air outlet (4); Angle between described intilted wind deflector (61) plane and header board (1) plane is α, and the angle value of angle α is 25 °～75 °.

6. the filter of lampblack absorber according to claim 5, it is characterized in that: the angle value of angle α is 55 ° between described wind deflector (61) plane and header board (1) plane.

7. the filter of lampblack absorber according to claim 1 is characterized in that: the gap that is provided with between the lower limb of described wind deflector (61) and the midfeather (5), and the width in gap is L, its span is 4～10mm.

8. the filter of lampblack absorber according to claim 7, it is characterized in that: described width L is 8mm.

9. the filter of a kind of lampblack absorber according to claim 1, described back plate (2) is made up of the first back plate (23) that cooperatively interacts and the second back plate (24), the back side of plate (23) is fixedly connected with the pipe (21) along the axis opening after first, and pipe (21) is parallel to the seam direction of plate after two; Correspondence position at the second back plate (24) is fixedly connected with cylinder bar (22), cylinder bar (22) and pipe (21) interference fits, cylinder bar (22) is fixedlyed connected with plate behind another piece by angle bar plate (25), the A/F of pipe (21) is less than cylinder bar (22) diameter, and greater than the thickness of angle bar plate (25); The distance of pipe (21) on first back plate (23) to the cylinder bar (22) of the distance of seam side and the second back plate (24) to the seam side equates.

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