CN104588210A - Range hood and oily fume trapping device thereof - Google Patents

Range hood and oily fume trapping device thereof Download PDF

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Publication number
CN104588210A
CN104588210A CN201310534740.9A CN201310534740A CN104588210A CN 104588210 A CN104588210 A CN 104588210A CN 201310534740 A CN201310534740 A CN 201310534740A CN 104588210 A CN104588210 A CN 104588210A
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CN
China
Prior art keywords
oil smoke
ionization
anode
plate
negative electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310534740.9A
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Chinese (zh)
Inventor
蒋丽
封宗瑜
代光剑
肖德玲
赵亮
翟立鹏
胡永辉
陈家栋
闵岚
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Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201310534740.9A priority Critical patent/CN104588210A/en
Publication of CN104588210A publication Critical patent/CN104588210A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an oily fume trapping device. The oily fume trapping device includes more than 2 oily fume trapping parts, each of the oily fume trapping parts includes a high pressure ionization portion and a dust collecting portion, the high pressure ionization portion has a discharge channel, the dust collecting portion has a strong electric field and a fluid channel, and the oily fume trapping parts are serially arranged. The oily fume trapping device can improve the oily fume one-shot trapping rate and effectively reduce the wind resistance of a whole range hood. The invention also provides a range hood with the oily fume trapping device. The range hood has high oily fume one-shot trapping rate and reduced wind resistance, and a controller is used to control one or more of the oily fume trapping parts in order to reduce the power consumption of the whole range hood.

Description

Lampblack absorber and oil smoke capturing device thereof
Technical field
The present invention relates to field of lampblack purification, more specifically, relate to a kind of lampblack absorber and oil smoke capturing device thereof.
Background technology
At present, the lampblack absorber that people use, be all generally directly oil smoke is discharged to open air from kitchen by air exhauster, centre does not process through any device.This just causes most of oil smoke particle directly to enter outdoor space, severe contamination atmospheric environment.Oil smoke is in fact by the oily object heated, and the smoke particle that volume formed after evaporation is very little is mixed to form with outdoor steam and air.If people live in the air of fume pollution for a long time, easily palpitate quickly, expiratory dyspnea, mood is irascible.Therefore, purification is carried out to oil smoke and seems very important, and the most essential is and will reduce through the smoke particle quantity of lampblack absorber discharged to outdoor.
Existing part lampblack absorber has possessed certain fume purifying function.This lampblack absorber adopts structure as shown in Figure 1.The electrion end 102 of this lampblack absorber, by air ionization, forms ion; Under the air draught effect of blower fan 104, high concentration smoke particle air 101 is inhaled into electrion end 102, and high concentration smoke particle air 101 is charged with ion collision, then moves to the metal screen 103 of ground connection further.Metal screen 103 physically tackles part smoke particle while utilizing electric field action power to adsorb charged smoke particle.Like this, discharged to being exactly low concentration smoke particle air 105 in atmospheric environment.The problem of this structure is, when blower fan 104 lampblack absorber is longer for service time, the smoke particle be adsorbed on netted earth terminal is more, causes complete machine windage larger, increases the Overall Power Consumption of lampblack absorber.
At present, part environment-protecting kitchen ventilator have also contemplated that the problem of complete machine windage, adopts structure as shown in Figure 2 to carry out fume purifying.Oil smoke enters lampblack absorber inside from left side shown in Fig. 2, and high pressure V1 acts on the highfield that corona wire is formed and ionizes surrounding air, makes smoke particle charged.Charged smoke particle enters in the electric field of high pressure V2 formation and is captured.This lampblack absorber solves the problem of windage, but oil smoke capture rate has much room for improvement.
Summary of the invention
For overcoming the deficiencies in the prior art, main purpose of the present invention is to provide a kind of oil smoke capturing device that improve oil smoke capture rate, effectively can reduce lampblack absorber complete machine windage.
Another object of the present invention is to provide one to be had and improves oil smoke capture rate, and complete machine windage is lower, the lampblack absorber of energy-conserving and environment-protective.
For realizing above-mentioned main purpose, the technical solution adopted in the present invention is: oil smoke capturing device, include oil smoke catch parts, this oil smoke catch parts comprises high pressure ionization portion and dust collecting part, and high pressure ionization portion has discharge channel, and dust collecting part has highfield and fluid passage, and, the quantity of oil smoke catch parts be greater than 2 natural number, and N number of oil smoke catch parts is for being arranged in series.
Further, high pressure ionization portion comprises the negative electrode ionization plate of multiple ground connection, the discharge channel for making smoke particle charged is formed between adjacent negative electrode ionization plate, an anode ionization plate is provided with in discharge channel, anode ionization plate is provided with sparking electrode, further, anode ionization plate is connected with high voltage source.
Further, high pressure ionization portion comprises the negative electrode ionization plate of multiple ground connection, the discharge channel for making smoke particle charged is formed between adjacent negative electrode ionization plate, an anode ionization tube is provided with in discharge channel, anode ionization tube is provided with sparking electrode, and anode ionization tube is connected with high voltage source.
Further, sparking electrode is sawtooth pattern or star-like or fish bone well.
Further, dust collecting part comprises the negative electrode collecting plate of multiple anode collecting plate and multiple ground connection, anode collecting plate is connected with high voltage source, anode collecting plate and negative electrode collecting plate are respectively arranged in parallel, and have highfield and form the fluid passage passed through for smoke particle between adjacent anode collecting plate and negative electrode collecting plate.
Further, the side of negative electrode collecting plate towards anode collecting plate is provided with spoiler.
Further, discharge channel is corresponding with two fluid passages is arranged.
Further, N number of oil smoke catch parts composition N level oil smoke catch parts, the anode ionization plate of the oil smoke catch parts of N level and N-1 level respectively with high voltage source VN and high voltage source V n-1be connected, and, high voltage source V n-1magnitude of voltage be less than high voltage source V nmagnitude of voltage.
For realizing another object above-mentioned, the technical solution adopted in the present invention is: a kind of lampblack absorber, comprises the oil smoke capturing device that above each technical scheme defines.
Further, lampblack absorber also comprises controller, and to be used for controlling automatically or manually according to the size of smoke particle concentration in N number of oil smoke catch parts one or more carries out work for this controller.
As can be seen from above-mentioned technical scheme, oil smoke capturing device of the present invention is arranged to the oil smoke catch parts with multiple series connection, effectively can improve oil smoke capture rate, and effectively can reduce lampblack absorber complete machine windage, the lampblack absorber that have employed oil smoke capturing device of the present invention has higher oil smoke capture rate, and reduces complete machine windage, and, control one or more oil smoke catch parts by utilizing controller and carry out work, reach energy-conservation object.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described;
Fig. 1 is the structural representation of background technology lampblack absorber of the present invention;
Fig. 2 is the structural representation of background technology fume purifier of fume of the present invention;
Fig. 3 is the structural representation of oil smoke capturing device of the present invention;
Fig. 4 is the structural representation of the oil smoke catch parts of oil smoke capturing device of the present invention;
Fig. 5 is the sawtooth pattern of oil smoke capturing device of the present invention, the schematic cross-section of star-like sparking electrode;
Fig. 6 is the schematic diagram of sawtooth pattern sparking electrode matrix arrangement in anode ionization plate of oil smoke capturing device of the present invention;
Fig. 7 is that the sawtooth pattern sparking electrode of oil smoke capturing device of the present invention arranges schematic diagram on ionization tube;
Fig. 8 is the motion schematic diagram of smoke particle under electric field force effect of oil smoke capturing device of the present invention;
Fig. 9 is the oil smoke catch parts structural representation with spoiler of oil smoke capturing device of the present invention.
Description of reference numerals:
101, high concentration smoke particle air, 102, electrion end, 103, metal screen, 104, blower fan, 105, low concentration smoke particle air, 1, high pressure ionization portion, 2, dust collecting part, the 3, first discharge channel, the 4, second discharge channel, 5, anode ionization plate, 6, anode ionization tube, 7, spoiler, 8, oil smoke catch parts, 9, negative electrode ionization plate, 10, anode collecting plate, 11, negative electrode collecting plate, 12, first order oil smoke catch parts, 13, second level oil smoke catch parts.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, lampblack absorber of the present invention and oil smoke capturing device thereof are further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
[oil smoke capturing device overall structure]
For lampblack absorber, when the long-pending timing of duct cross-section, the length in whole air channel is relatively long.In order to improve oil smoke capture rate, the present invention adopts and oil smoke capturing device is set to the oil smoke catch parts with two-stage or plural serial stage.
Fig. 3 shows has the first order oil smoke catch parts 12 of series connection and the oil smoke capturing device of second level oil smoke catch parts 13, and first order oil smoke catch parts 12 is identical with the structure of second level oil smoke catch parts 13.Each cigarette catch parts comprises a high pressure ionization portion 1 and a dust collecting part 2, and high pressure ionization portion 1 and a dust collecting part 2 of first order oil smoke catch parts 12 are applied separately high voltage source V 1and V 1', high pressure ionization portion 1 and a dust collecting part 2 of second level oil smoke catch parts 13 are applied separately high voltage source V 2and V 2'.
For the smoke particle that first order oil smoke catch parts 12 does not trap, trapped further by second level oil smoke catch parts 13.High voltage source V 1the magnitude of voltage being applied to high pressure ionization portion 1 discharge tip of first order oil smoke catch parts 12 is slightly less than high voltage source V 2be applied to the magnitude of voltage of high pressure ionization portion 1 discharge tip of second level oil smoke catch parts 13, so, by by high voltage source V 1magnitude of voltage is arranged to be less than high voltage source V 2magnitude of voltage, larger-diameter smoke particle just can be trapped by first order oil smoke catch parts 12 without the need to larger electric field force on the one hand, now first order oil smoke catch parts 12 serves the effect of primary filter, and setting also can reach energy-conserving and environment-protective, improve the effect of oil smoke arresting efficiency so on the other hand.In addition, for the oil smoke capturing device of oil smoke catch parts with the series connection of N level, wherein, N be greater than 3 natural number, be then applied to the voltage V of the high pressure ionization portion discharge tip of N-1 level oil smoke catch parts n-1magnitude of voltage is less than the voltage V of the high pressure ionization portion discharge tip being applied to N level oil smoke catch parts nmagnitude of voltage, by that analogy.
[oil smoke catch parts]
See Fig. 4, the first order oil smoke catch parts of embodiment of the present invention oil smoke capturing device has structure identical with oil smoke catch parts 8 with second level oil smoke catch parts, and this oil smoke catch parts 8 comprises high pressure ionization portion 1, dust collecting part 2 and high voltage source V 1, V 1', high pressure ionization portion 1 has the anode ionization plate 5 of positively charged, and its voltage up to more than 10,000 volts, can have very strong ionization power to smoke particle.When smoke particle from discharge channel 3, second discharge channel 4 in high pressure ionization portion 1 through out-of-date, can be ionized, charge, make smoke particle positively charged.Dust collecting part 2 comprises multiple anode collecting plate 10 of band high pressure positive electricity and the negative electrode collecting plate 11 of ground connection, and each anode collecting plate 10 and negative electrode collecting plate 11 are respectively arranged in parallel, between adjacent anode collecting plate 10 and negative electrode collecting plate 11, produce highfield, and form multiple fluid passage between each adjacent anode collecting plate 10 and negative electrode collecting plate 11.The smoke particle of positively charged is under the effect of blower fan; can pass through from multiple fluid passages of dust collecting part 2; when charged smoke particle from highfield through out-of-date; according to two like magnetic poles repel each other, the principle of opposite sex attraction of electric charge; charged smoke particle can produce yaw motion to negative electrode collecting plate 11, and is finally adsorbed by negative electrode collecting plate 11.
[high pressure ionization portion]
With further reference to Fig. 4, the anode ionization plate 5 of the positively charged that high pressure ionization portion 1 has can be arranged sawtooth pattern or star-like or fish bone well sparking electrode, wherein the cross section of sawtooth pattern or star-like sparking electrode as shown in Figure 5.Adopt the sparking electrode of the above-mentioned type, all types of sparking electrode is all had can realize the pointed shape of discharging, compared with existing filament plate sparking electrode, can produce more that multi-charge is charged for smoke particle.Silk parts in existing filament plate sparking electrode are easily broken, in contrast, the sawtooth pattern that the present invention adopts or reliability that is star-like or fish bone well sparking electrode higher and not easily wreck.
With further reference to Fig. 4, high pressure ionization portion 1 comprises the negative electrode ionization plate 9 of multiple ground connection, forms a discharge channel between adjacent two negative electrode ionization plate 9.High pressure ionization portion 1 comprises multiple discharge channel.Preferably, discharge channel comprises the first discharge channel 3, second discharge channel 4.As one embodiment of the present of invention, one piece of anode ionization plate 5 is set in above-mentioned each discharge channel.
Oil smoke air-flow as shown in Figure 4, enters from left end, and right-hand member flows out.Now just the structure of single discharge channel is described.See Fig. 6, when adopting sawtooth sparking electrode, above-mentioned sawtooth pattern electrode is arranged in anode ionization plate 5 by matrix-style.Preferably, the reverse side of anode ionization plate 5 arranges sawtooth pattern electrode simultaneously.All press matrix-style arrangement sawtooth pattern electrode or fish bone well electrode at the tow sides of anode ionization plate 5, discharge tip terminal number is increased, more charged for smoke particle electric charge can be produced, improve the charged efficiency of oil smoke capturing device.
As another embodiment of the present invention, see Fig. 7, an anode ionization tube 6 is set in above-mentioned each discharge channel.Above-mentioned anode ionization tube 6 arranges sawtooth pattern or star-like or fish bone well sparking electrode, the anode ionization tube 6 shown in Fig. 7 is provided with sawtooth pattern sparking electrode, above-mentioned anode ionization tube 6 is arranged in order along perpendicular to the smoke particle direction of motion.When high pressure ionization portion comprises multiple discharge channel, the anode ionization tube 6 in each discharge channel is connected to high voltage source V respectively by wire 1.Adopt this anode ionization tube structure, add discharge tip terminal number equally, and it is charged for smoke particle to produce more multi-charge, improve the charged efficiency of oil smoke capturing device.
[collecting plate]
Fig. 8 illustrates the motion conditions by electric field force effect in the fluid passage of charged smoke particle between anode collecting plate and negative electrode collecting plate, and wherein, V is the initial velocity that smoke particle enters fluid passage, and this initial velocity is substantially equal to the wind speed of lampblack absorber.As can be seen from Figure 8, when the blower fan wind speed of lampblack absorber is excessive, or smoke particle is charged insufficient, or when the electric field strength E in fluid passage is more weak, smoke particle (charged) will escape into outside dust collecting part, cannot trap, and cause oil smoke capture rate to reduce.Generally, blower fan exhausting amount and the oil smoke amount of lampblack absorber match, and is not easy to change; And improve the voltage in high pressure ionization portion, can ensure that smoke particle is fully charged, when collecting plate district electric-field intensity is certain, improve oil smoke capture rate, but in order to improve the voltage in high pressure ionization portion, needing the voltage module configuring higher quality, adding the cost of oil smoke capturing device, and due to voltage too high, larger electrical safety hidden danger can be brought to complete machine; Voltage based on blower fan exhausting amount and high pressure ionization portion is all not easily changed, therefore, in order to reduce the smoke particle quantity escaped into outside collecting plate 2, the length of anode collecting plate and negative electrode collecting plate can be increased, because lampblack absorber has longer oil smoke passage, and the space of oil smoke passage is comparatively large, the increase of anode collecting plate and negative electrode collecting plate length can realize relatively easily, thus improves oil smoke capture rate of oil smoke capturing device.
See Fig. 4, the dust collecting part 2 of oil smoke catch parts comprises multiple anode collecting plate 10 of band high pressure positive electricity and the negative electrode collecting plate 11 of multiple ground connection, and mutually insulated between anode collecting plate 10 and described negative electrode collecting plate 11.The smoke particle of positively charged is under the effect of blower fan; can pass through from the fluid passage between adjacent anode collecting plate 10 and negative electrode collecting plate 11; and between adjacent anode collecting plate 10 and negative electrode collecting plate 11, there is highfield; therefore; when charged smoke particle from highfield through out-of-date; charged smoke particle can produce yaw motion to negative electrode collecting plate 11, and collides with negative electrode collecting plate 11, is finally adsorbed by negative electrode collecting plate 11.
As shown in Figure 9, as an alternative embodiment of the invention, negative electrode collecting plate 11 is provided with spoiler 7.Preferably, spoiler 7 is protruding.Arrange such spoiler 7 and can hinder passing through of charged smoke particle to a certain extent, extend charged smoke particle through the duration needed for collecting plate district, when electric-field intensity and smoke particle carried charge are a timing, oil smoke capture rate significantly improves.
Preferably, above-mentioned spoiler 7 is arranged on the side of negative electrode collecting plate 11 object gas flow by direction.Because the smoke particle through high pressure ionization portion 1 is with positive electricity; when it enters collecting plate district; charged smoke particle can produce yaw motion to negative electrode collecting plate 11 direction; finally adsorb by negative electrode collecting plate 11; so above-mentioned spoiler 7 to be arranged on the side that negative electrode collecting plate 11 object gas flow passes through; passing through of charged smoke particle can be hindered to a certain extent; extend charged smoke particle through the duration needed for collecting plate district; be conducive to charged smoke particle to be adsorbed by negative electrode collecting plate 11, improve oil smoke capture rate of oil smoke capturing device.
[high pressure ionization portion and collecting plate]
See Fig. 4, high pressure ionization portion 1 comprises the negative electrode ionization plate 9 of multiple ground connection, forms a discharge channel between negative electrode ionization plate 9 adjacent between two.For each discharge channel in high pressure ionization portion, correspondence is provided with multiple fluid passage.In the present embodiment, two fluid passages formed by the negative electrode collecting plate 11 of an anode collecting plate 10 and two ground connection are provided with corresponding to a discharge channel, therefore, through a discharge channel, charged smoke particle enters two fluid passages, two fluid passages, by through charged smoke particle absorption wherein, add oil smoke capture rate of oil smoke capturing device.
[lampblack absorber]
Present invention also offers a kind of lampblack absorber, comprise above-described oil smoke capturing device.The oil smoke capturing device of lampblack absorber has the multistage oil smoke catch parts of series connection, the size of controller smoke particle concentration detected by the sensor at diverse location place in oil smoke passage of lampblack absorber, whether the operation of the oil smoke catch parts of automatic or manual control different stage, thus reduce the Overall Power Consumption of lampblack absorber.
Adopt the lampblack absorber of above-described oil smoke capturing device, both improve the oil smoke arresting efficiency of lampblack absorber, substantially can not increase complete machine windage again, and whether can run according to smoke particle concentration automatic or manual control oil smoke capturing device, reach the effect of energy-conserving and environment-protective.
The above embodiment only have expressed preferred forms of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (10)

1. oil smoke capturing device, comprising:
Oil smoke catch parts, described oil smoke catch parts comprises:
High pressure ionization portion, described high pressure ionization portion has discharge channel;
Dust collecting part, described dust collecting part has highfield and fluid passage;
It is characterized in that:
The quantity of described oil smoke catch parts is N number of, wherein, N be greater than 2 natural number, and described N number of oil smoke catch parts is for being arranged in series.
2. oil smoke capturing device according to claim 1, is characterized in that:
Described high pressure ionization portion comprises the negative electrode ionization plate of multiple ground connection, the discharge channel for making smoke particle charged is formed between adjacent described negative electrode ionization plate, an anode ionization plate is provided with in described discharge channel, described anode ionization plate is provided with sparking electrode, further, described anode ionization plate is connected with high voltage source.
3. oil smoke capturing device according to claim 1, is characterized in that:
Described high pressure ionization portion comprises the negative electrode ionization plate of multiple ground connection, the discharge channel for making smoke particle charged is formed between adjacent described negative electrode ionization plate, an anode ionization tube is provided with in described discharge channel, described anode ionization tube is provided with sparking electrode, and described anode ionization tube is connected with high voltage source.
4. the oil smoke capturing device according to Claims 2 or 3, is characterized in that:
Described sparking electrode is sawtooth pattern or star-like or fish bone well.
5. the oil smoke capturing device according to Claims 2 or 3, is characterized in that:
Described dust collecting part comprises the negative electrode collecting plate of multiple anode collecting plate and multiple ground connection, described anode collecting plate is connected with high voltage source, described anode collecting plate and described negative electrode collecting plate are respectively arranged in parallel, and have highfield and form the fluid passage passed through for smoke particle between adjacent described anode collecting plate and negative electrode collecting plate.
6. oil smoke capturing device according to claim 5, is characterized in that:
The side of described negative electrode collecting plate towards described anode collecting plate is provided with spoiler.
7. oil smoke capturing device according to claim 5, is characterized in that:
Described discharge channel is corresponding with two described fluid passages to be arranged.
8. oil smoke capturing device according to claim 5, is characterized in that:
Described N number of oil smoke catch parts composition N level oil smoke catch parts, the described anode ionization plate of the described oil smoke catch parts of N level and N-1 level respectively with high voltage source V nand high voltage source V n-1be connected, and, described high voltage source V n-1magnitude of voltage be less than described high voltage source V nmagnitude of voltage.
9. a lampblack absorber, is characterized in that: also comprise the oil smoke capturing device as described in claim 1 to 9.
10. lampblack absorber according to claim 9, is characterized in that:
Controller, to be used for controlling automatically or manually according to the size of smoke particle concentration in described N number of oil smoke catch parts one or more carries out work for described controller.
CN201310534740.9A 2013-11-01 2013-11-01 Range hood and oily fume trapping device thereof Pending CN104588210A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106733183A (en) * 2016-12-16 2017-05-31 美的集团股份有限公司 Lampblack filter and lampblack absorber
CN106885283A (en) * 2017-03-31 2017-06-23 广东美的厨房电器制造有限公司 Oil-fume separating device, lampblack absorber and oil smoke separation method
CN108087939A (en) * 2018-01-23 2018-05-29 武汉浩航环保科技有限公司 A kind of disc type soot dust granule object seperator
CN109282337A (en) * 2018-12-10 2019-01-29 杭州老板电器股份有限公司 Kitchen ventilator and its control method
CN110076000A (en) * 2019-05-29 2019-08-02 珠海格力电器股份有限公司 Ionize dust-extraction unit
CN111992335A (en) * 2019-05-27 2020-11-27 无锡凯漫科技有限公司 High-pressure dust collecting device and dust collecting system for filtering fine particles in air

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CN101670311A (en) * 2009-09-29 2010-03-17 东北大学 Double-area multi-stage electrostatic precipitator of reverse airflow dust charge
CN102039222A (en) * 2009-10-20 2011-05-04 吴福吉 High-efficiency labyrinth type air treatment device
CN203577998U (en) * 2013-11-01 2014-05-07 珠海格力电器股份有限公司 Range hood and fume trapping device thereof

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CN2445817Y (en) * 2000-06-07 2001-09-05 李樱花 Module kitchen electrostatic cooker hood
CN201154327Y (en) * 2007-12-29 2008-11-26 武汉科技大学 Three-zone dipolar loading electrostatic agglomeration dust remover
CN201205520Y (en) * 2008-05-23 2009-03-11 清华大学 Silent micro current drain air cleaner
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106733183A (en) * 2016-12-16 2017-05-31 美的集团股份有限公司 Lampblack filter and lampblack absorber
CN106885283A (en) * 2017-03-31 2017-06-23 广东美的厨房电器制造有限公司 Oil-fume separating device, lampblack absorber and oil smoke separation method
CN108087939A (en) * 2018-01-23 2018-05-29 武汉浩航环保科技有限公司 A kind of disc type soot dust granule object seperator
CN109282337A (en) * 2018-12-10 2019-01-29 杭州老板电器股份有限公司 Kitchen ventilator and its control method
CN111992335A (en) * 2019-05-27 2020-11-27 无锡凯漫科技有限公司 High-pressure dust collecting device and dust collecting system for filtering fine particles in air
CN110076000A (en) * 2019-05-29 2019-08-02 珠海格力电器股份有限公司 Ionize dust-extraction unit

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