CN110006113B - Kitchen air purifier and air purifying method thereof - Google Patents
Kitchen air purifier and air purifying method thereof Download PDFInfo
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- CN110006113B CN110006113B CN201711492449.4A CN201711492449A CN110006113B CN 110006113 B CN110006113 B CN 110006113B CN 201711492449 A CN201711492449 A CN 201711492449A CN 110006113 B CN110006113 B CN 110006113B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/167—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using catalytic reactions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
Abstract
The invention relates to a kitchen air purifier, which comprises a shell with an air inlet and an air outlet, wherein a filtering channel is formed between the air inlet and the air outlet, a filtering fan is arranged in the filtering channel, a negative ion generating component is arranged in the shell, and an air outlet for escaping negative oxygen ions generated by the negative ion generating component is formed in the shell; a first efficient filter screen capable of filtering particles with smaller particle sizes is arranged in the filter channel; the shell is also provided with a dust collecting channel which is arranged in parallel with the filtering channel, and two ends of the dust collecting channel are respectively provided with an air inlet and an air outlet; a primary filter screen and a dust collection fan for filtering particles with coarser particle diameter are arranged in the dust collection channel; and also relates to an air purifying method. The invention can improve the processing capacity of the air purifier, is suitable for kitchen air environment continuously producing pollutants, can carry out graded filtration and comprehensive treatment on kitchen air, and greatly prolongs the service life of each component on the basis of effectively purifying air.
Description
Technical Field
The invention relates to the field of purifiers, in particular to a kitchen air purifier and an air purifying method thereof.
Background
With the improvement of air quality and self health importance of the public, the market of air purifier products is rapidly expanding, however, the existing common air purifier cannot meet the purification requirement of kitchen environment. The kitchen air environment is worse than the general indoor air environment, and compared with the general indoor air environment, the kitchen air environment contains more oil drop particles, decomposition products (VOCs) of edible oil and food which are chemically changed in the heating process, combustion waste gas (carbon monoxide, nitrogen oxides and the like) and are more moist, and the general air purifier has short service life and possibly becomes a new pollution source when being used in a kitchen. In addition, due to the special environment of the kitchen air, the air purifier can play a role in obviously improving the air quality in the kitchen only under the condition that the clean air quantity of the air purifier is larger than the actual exhaust air quantity of the range hood. The air purifier with high clean air quantity in the market at present has a lot, and is more than the actual exhaust air quantity of the range hood, and the air purifier is realized by improving the circulating clean air quantity (more than the clean air quantity) of the range hood, but when the range hood is used in a kitchen, the space of the kitchen is generally smaller, if the circulating clean air quantity of the air purifier is too large, the air flowing state in the kitchen can be greatly changed, the suction effect of the range hood is further influenced, and the escape of oil smoke is aggravated.
In recent years, negative oxygen ions have been increasingly used in air purifiers because they have a good purifying effect on particulate matters in the air. The chinese patent application No. 201410399656.5 (application publication No. CN 105333515A) discloses an intelligent air purifier, which includes a casing, an air inlet, an air outlet, a negative ion generator, a primary filter screen, a high-voltage electrostatic precipitator, a titanium dioxide filter screen, an ultraviolet lamp, a cross-flow fan, an integrated circuit board, and a power supply. The air purifier in the patent can automatically adjust the purification efficiency according to the air quality, is energy-saving and environment-friendly, and is convenient to use.
Compared with the traditional air purifier, the air purifier with the negative ions has the advantages of energy conservation, low noise, no consumption, low use cost and the like. However, both the new type of anion air cleaner and the conventional air cleaner using the filter net have the following problems: the purification effect of fine particles having a relatively small particle diameter in the air is not good, and particularly, fine particles having a very small particle diameter are obtained. Because the particle size of the superfine particle size particles is small, the Brownian motion is strong, the particles are not easy to agglomerate, the particles are difficult to filter even if the particles are settled in the negative ion environment, the particles are not easy to filter out, and if the particle size of the filter screen is reduced, the aim of intercepting the superfine particles is fulfilled, and the resistance of the filter screen is very large.
Disclosure of Invention
The invention aims to provide a kitchen air purifier which can carry out graded purification treatment on particles in air and has a good treatment effect.
The second technical problem to be solved by the invention is to provide a kitchen air purifier with small interference to an air flow field in a kitchen aiming at the prior art.
The third technical problem to be solved by the invention is to provide a kitchen air purifying method which can carry out classified purifying treatment on particles in air and has better treatment effect.
The technical scheme adopted by the invention for solving the first technical problem and the second technical problem is as follows: the kitchen air purifier comprises a shell, wherein the front end of the shell is provided with an air inlet, the rear end of the shell is provided with an air outlet, a filtering channel is formed between the air inlet and the air outlet in the shell, and a filtering fan is arranged in the filtering channel; a first high-efficiency filter screen capable of filtering particles with smaller particle sizes is arranged in the filter channel; a dust collecting channel is also arranged in the shell, the dust collecting channel is arranged in parallel with the filtering channel, and the two ends of the dust collecting channel are respectively provided with the air inlet and the air outlet; the dust collection channel is provided with a primary filter screen and a dust collection fan for filtering particles with coarser particle diameter.
Preferably, a dust collector is further disposed in the dust collection passage, and the dust collector is disposed between the primary filter screen and an air inlet port of the dust collection fan. Through setting up the dust collector in the dust collection passageway, the particle of finer particle diameter in the air can adsorb to the dust collecting plate of dust collector constantly under electrostatic force effect to can filter the particle of finer particle diameter in the air through this dust collector, especially superfine particle diameter particle, with above-mentioned primary filter screen and first high-efficient filter screen cooperation, but the particle of hierarchical processing air different particle diameters.
Preferably, a dust collecting air supply sleeve is arranged between the dust collector and the dust collecting fan, the front port of the dust collecting air supply sleeve is communicated with the air outlet of the dust collector, the rear port of the dust collecting air supply sleeve is communicated with the air inlet port of the dust collecting fan, and the dust collecting air supply sleeve is contracted from the air outlet of the dust collector to the air inlet port of the dust collecting fan.
Preferably, a purifying component is further arranged in the filtering channel, and the purifying component is located between the first efficient filter screen and an air inlet port of the filtering fan.
Further, preferably, the purification assembly comprises at least one of an activated carbon filter screen and a photocatalytic device. Thereby being capable of cooperating with the filter screens and the dust collectors to adsorb and decompose harmful gases and eliminate peculiar smell, and carrying out all-round and deep purification treatment on air.
Preferably, the photocatalytic device includes a photocatalytic carrier having a photocatalyst and an ultraviolet lamp provided in the photocatalytic carrier, and ultraviolet rays emitted from the ultraviolet lamp can be radiated on the photocatalyst of the photocatalytic carrier to induce a strong oxidation reaction.
Further, preferably, gaps through which ultraviolet rays emitted by the ultraviolet lamp penetrate are uniformly distributed on the photocatalytic carrier along the circumferential direction, the side walls surrounding the gaps are respectively coated with the photocatalyst, and the extending direction of the gaps is perpendicular to the setting direction of the ultraviolet lamp in the photocatalytic carrier, so that the ultraviolet rays generated by the ultraviolet lamp can radiate the filtering channel better.
Preferably, the number of the filter fans is two, and the air inlet ports of the filter fans are respectively opposite to the air inlet, and the air outlet ports of the filter fans are respectively opposite to the air outlet. Therefore, the air outlet area of the filtering channel can be further enlarged, and the air outlet speed is reduced on the premise of ensuring the air quantity.
Preferably, the front side of each filter blower is further provided with a filter blower sleeve, the rear port of each filter blower sleeve is respectively communicated with the air inlet port of each filter blower, the front port of each filter blower sleeve is respectively directed towards the purification assembly, and each filter blower sleeve is respectively contracted from the purification assembly to the air inlet port of the filter blower.
Preferably, the air outlet ports of the filter fans are respectively provided with a second efficient filter screen, the aperture of the second efficient filter screen is larger than that of the first efficient filter screen, and the second efficient filter screen is a HEPA efficient filter screen. So that dust is prevented from entering the filtering passage in the unused state of the kitchen air purifier of the present invention.
Preferably, the first efficient filter screen is a HEPA efficient filter screen, so that fine particle size particles in the air can be effectively filtered and purified.
Preferably, the casing has a square shape, the air inlet and the air outlet extend to a large part of the whole front end surface and a large part of the whole rear end surface of the casing respectively, and the filter channel and the dust collecting channel extend along the width direction of the casing respectively. The air inlet and the air outlet adopt a large-area design, and the air inlet and outlet speed can be reduced under the condition of keeping relatively high circulating purified air quantity, so that the interference of the air inlet and outlet air flow to the air flow field in the kitchen is greatly reduced. In addition, the filter channel and the dust collecting channel extend along the width direction of the shell respectively, so that the filter channel and the dust collecting channel are relatively short, and the wind resistance of the air purifier is further reduced.
Preferably, the primary filter screen is arranged at the air inlet corresponding to the filter channel and is arranged at the front side of the first efficient filter screen, so that particles with larger particle sizes in the air entering the filter channel can be filtered and purified. The air outlet that the filtration passageway and dust collecting channel correspond is provided with the air-out filter screen respectively, and this air-out filter screen can avoid when air purifier is not used, and the dust gets into in the air purifier through the air outlet and causes secondary pollution.
Preferably, an air inlet grille and an air outlet grille are respectively arranged in the air inlet and the air outlet, and the air inlet grille and the air outlet grille are respectively positioned at the outer sides of the corresponding primary filter screen and the air outlet filter screen.
Preferably, the negative ion generating assembly comprises a negative ion generator, a substrate, a negative ion emitter, a dust cover and a negative ion emission outlet panel; the negative ion emitting electrodes are uniformly distributed on the substrate, the negative ion emitting outlet panel is a side plate of the shell, the number of the dust covers is in one-to-one correspondence with that of the negative ion emitting electrodes, one end of each dust cover is fixed on the substrate and sleeved on the periphery of the negative ion emitting electrode, through holes which are in one-to-one correspondence with the dust covers and matched with the other end ports of the dust covers are formed in the corresponding positions of the negative ion emitting outlet panel, the other ends of the dust covers are fixed on the negative ion emitting outlet panel, the ports of the other ends of the dust covers are opposite to the corresponding through holes, and the air outlets are formed in the plate surfaces of the negative ion emitting outlet panels on the periphery of the through holes along the circumferential interval.
The invention solves the third technical problem by adopting the technical scheme that: the kitchen air purifying method using the kitchen air purifier is characterized by comprising the following steps:
(1) Starting an anion generator, a dust collector and a dust collection fan, wherein the anion generator assembly emits electrons to the kitchen air environment, so that a high-concentration negative oxygen ion group is formed in the kitchen air environment to purify kitchen air, and the dust collection fan drives air in a kitchen to circulate through a primary filter screen and the dust collector in the dust collection channel to realize primary filtration and purification of the kitchen air;
(2) When the concentration of particles in the kitchen air environment is reduced to a preset threshold value, the negative ion generator continues to operate, the air quantity of the dust collection fans is reduced, the filtering fans and the ultraviolet lamps are started, and the filtering fans drive the air in the kitchen to circulate through the first efficient filter screen and the purifying component in the filtering channel, so that the deep filtration and the purification of the kitchen air are realized.
Preferably, the air volume of each filter fan is 0-2 m 3 And (3) per min, wherein the air quantity of the dust collection fan in the step (1) is 0-3 m 3 And/min, the air volume of the dust collecting fan in the step (2) is 0-1.5 m 3 /min。
Preferably, the ultraviolet lamp is a black light lamp having a wavelength of 365 nm.
Compared with the prior art, the invention has the advantages that: the invention greatly improves the processing capacity of the air purifier through the arrangement of the double channels (the filtering channel and the dust collecting channel), is suitable for the kitchen air environment continuously producing pollutants, and effectively reduces the wind resistance of the whole kitchen by the arrangement of the double channels, thereby reducing the interference to the air flow field in the kitchen and further ensuring the normal operation of the range hood. During operation, firstly through anion and dust collecting channel cooperation to the granule that particle diameter is great in the air of air purification, open the filtration passageway again after handling to a certain extent, through the cooperation of first high-efficient filter screen and anion, the granule that the particle diameter is less in the further filtration air carries out hierarchical filtration and integrated process through anion, elementary filter screen and first high-efficient filter screen kitchen air promptly, on effective air purification's basis, the life of each part is prolonged greatly.
Drawings
FIG. 1 is a schematic view of a kitchen air purifier according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is an exploded view of a kitchen air purifier according to an embodiment of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 in another direction;
FIG. 6 is a schematic diagram of a partial structure of a negative ion generating component according to an embodiment of the present invention;
FIG. 7 is a schematic view of the structure of FIG. 6 in another direction;
FIG. 8 is a schematic view of a photocatalytic carrier according to an embodiment of the present invention;
fig. 9 is a schematic view of another direction of fig. 8.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 9, a kitchen air purifier includes a casing 1, in which the casing 1 is square in shape, a front end face and a rear end face of the casing 1 are respectively provided with an air inlet 12 and an air outlet 13, and the air inlet 12 and the air outlet 13 are respectively extended to a large part of the front end face and the rear end face of the casing 1. In addition, an air particle mass concentration monitoring port 12 is also provided on the front end face of the housing 1 for detecting the particle concentration in the kitchen air. The inside of the casing 1 forms a filtering channel 14 and a dust collecting channel 15 between the air inlet 12 and the air outlet 13, and the filtering channel 14 and the dust collecting channel 15 are disposed up and down in this embodiment and extend along the width direction of the casing 1. The air inlet 12 and the air outlet 13 are designed in a large area, so that the air inlet and outlet speeds can be reduced under the condition of keeping relatively high circulating purified air quantity, and the interference of the air inlet and outlet flows on an air flow field in a kitchen is greatly reduced. In addition, in the present embodiment, the filtering channels 14 and the dust collecting channels 15 extend from the air inlet 12 to the air outlet 13 along the width direction of the casing 1, and when the range hood is used in a kitchen, the filtering channels and the dust collecting channels are consistent with the continuous air flow trace entering the kitchen, so that the generation of irregular fluid large vortex is not induced in the kitchen space, and the effect of the range hood is not affected.
Further, the air inlet 12 and the air outlet 13 are respectively provided with an air inlet grille 21 and an air outlet grille 22, the air inlet 12 and the air outlet 13 corresponding to the two ends of the filtering channel 14 are respectively provided with a primary filter screen 31 and an air outlet filter screen 32, and the air inlet 12 and the air outlet 13 corresponding to the two ends of the dust collecting channel 15 are respectively provided with a primary filter screen 31 and an air outlet filter screen 32. The air inlet grilles 21 are respectively located at the outer sides of the corresponding primary filter screens 31, and the air outlet grilles 22 are respectively located at the outer sides of the corresponding air outlet filter screens 32. The primary filter screen 31 can filter particles with larger particle size, and the air outlet filter screen 32 can prevent dust from entering the air purifier through the air outlet 13 to cause secondary pollution when the air purifier is not in use. In this embodiment, the primary filter screen 31 and the air-out filter screen 32 are made of high-quality polyester synthetic fibers, and can be cleaned, the thickness is thinner, the aperture of the filter mesh is larger, and the filter mesh is mainly used for filtering particles with larger particle diameters in air, and can play a role in protecting all parts at the rear end of the kitchen air purifier.
Still further, the above-mentioned filtering channel 14 is further provided with a first efficient filtering screen 81, a purifying component 4 and a filtering fan 7, which can filter particles with a smaller particle size, wherein the first efficient filtering screen 81 and the purifying component 4 are sequentially disposed between the primary filtering screen 31 and the air inlet 12 of the filtering fan 7 along the direction from the air inlet 12 to the air outlet 13. In this embodiment, the first efficient filter 81 is a HEPA efficient filter, and after the air passes through the primary filter 31 to filter out the particles with larger particle sizes, the air passes through the first efficient filter 81 to filter the particles with extremely fine particle sizes, so that the service life of the first efficient filter 81 can be prolonged and the low wind resistance can be continuously maintained. In addition, the second efficient filter screen 82 is disposed on the air outlet of the filter fan 7 in this embodiment, so that dust can be further prevented from entering the filter channel 14 in the unused state. Preferably, the second high efficiency filter 82 has a larger pore size than the first high efficiency filter 81 so that the filter passage 14 maintains a low windage continuously in use. In this embodiment, the second efficient filter 82 is also a HEPA efficient filter. The HEPA efficient filter screen is made of glass fiber materials, is formed by interweaving very fine organic fibers, has strong capture capacity on particles, small aperture, large adsorption capacity and high purification efficiency, and is characterized in that air can pass through, but fine particles can not pass through. The HEPA used materials in the market at present comprise PP fibers, glass fibers, PP/PET composite materials, melt-blown polyester non-woven fabrics and melt-blown long fibers, wherein the filtering effect of the glass fiber materials is good. The embodiment adopts a HEPA high-efficiency filter screen made of glass fiber with H13 filter grade (EN 1822-2009).
Preferably, in this embodiment, the number of the filtering fans 7 is two, which are arranged in parallel, so that the air outlet area of the filtering channel 14 can be further enlarged, and the air outlet speed can be reduced on the premise of ensuring the air quantity. Correspondingly, the second efficient filter screens 82 are respectively opposite to the air outlets 13 of the two filter fans 7. In addition, a filtering air supply sleeve 71 is further arranged at the front side of each filtering fan 7, the rear port of each filtering air supply sleeve 71 is respectively communicated with the air inlet port of each filtering fan 7, the front port of each filtering air supply sleeve 71 is respectively towards the purification assembly 4, and each filtering air supply sleeve 71 is respectively contracted from the purification assembly 4 to the air inlet port of the filtering fan 7.
Further, the photocatalytic device 42 includes a photocatalytic carrier 421 and an ultraviolet lamp 422 disposed in the photocatalytic carrier 421, and the ultraviolet light emitted from the ultraviolet lamp 422 can be emitted outwards through the photocatalytic carrier 421, preferably, in this embodiment, the photocatalytic carrier 421 is square, and the ultraviolet lamp 422 is a black light lamp with a wavelength of 365 nm. In order to make the ultraviolet light emitted by the ultraviolet lamp 422 radiate onto the photocatalytic carrier 421 better, it is preferable that slits 4214 through which the ultraviolet light emitted by the ultraviolet lamp 422 passes are uniformly distributed on the photocatalytic carrier 421, and the extending direction of the slits 4214 is perpendicular to the arrangement direction of the ultraviolet lamp 422 in the photocatalytic carrier 421. Specifically, in this embodiment, the shape of the photocatalytic carrier 421 is square, which is formed by stacking a plurality of square plate bodies 2411 up and down, the surface of each plate body is coated with a photocatalyst, and the gaps 4214 are formed between adjacent plate bodies 2411, the middle portions of the plate bodies 4211 are respectively formed with mounting holes (in this embodiment, the mounting holes are also square), the mounting holes of the plate bodies 2411 are combined up and down to form a mounting space 4210 for mounting the ultraviolet lamp 422, at least two vertically extending support rods 4212 are uniformly distributed in the mounting space 4210, and the corresponding edges of the mounting holes of the plate bodies 2411 are respectively fixed on the support rods 4212, so that the inside of the photocatalytic carrier 421 forms a stable structure. In this way, the ultraviolet lamp 422 is vertically installed in the installation space 4210, and the ultraviolet rays emitted from the ultraviolet lamp 422 are irradiated on the photocatalyst of the plate body 2411 through the above-mentioned slits 4214 extending horizontally, thereby exciting a strong oxidation reaction to treat harmful substances in the filtering passage 14, thereby purifying air, and at the same time, a part of the ultraviolet rays can also be directly radiated to the filtering passage 14 through the slits 4214.
The dust collection channel 15 is also provided with a dust collector 5 and a dust collection fan 6, the dust collector 5 is arranged between the primary filter screen 31 and an air inlet port of the dust collection fan 6, a dust collection air supply sleeve 61 is arranged between the dust collector 5 and the dust collection fan 6, a front port of the dust collection air supply sleeve 61 is communicated with an air outlet of the dust collector 5, a rear port of the dust collection air supply sleeve 61 is communicated with an air inlet port of the dust collection fan 6, and the dust collection air supply sleeve 61 is contracted from the air outlet of the dust collector 5 to the air inlet port of the dust collection fan 6.
In addition, a negative ion generating assembly 9 is provided in the kitchen air cleaner of the present invention, and the negative ion generating assembly 9 includes a negative ion generator (not shown), a base plate 93, a negative ion emitter 90, a dust cover 92, and a negative ion emission outlet panel 91. Wherein, the negative high voltage output end of the negative ion generator is connected with the total input end 95 of the negative ion generating electrode, the negative ion emitters 90 are uniformly distributed on the substrate 93, the number of the dust-proof covers 92 is one-to-one corresponding to the negative ion emitters 90, one end of each dust-proof cover 92 is fixed on the substrate 93 and sleeved on the periphery of the negative ion emitter 90, through holes 911 which are one-to-one corresponding to the dust-proof covers 92 and matched with the other end ports of the dust-proof covers 92 are arranged at the corresponding positions of the negative ion emission outlet panels 91, the other ends of the dust-proof covers 92 are fixed on the negative ion emission outlet panels 91, the ports of the other ends of the dust-proof covers 92 are opposite to the corresponding through holes 911, and air outlets 94 are arranged on the surfaces of the negative ion emission outlet panels 91 at the periphery of the through holes 911 along the circumferential interval. The dust cover 92 can effectively prevent particles from adhering to the negative ion emitter 90, so that the emission performance of the negative ion generating component 9 is kept from being attenuated, and the service life of the negative ion generating component is prolonged. In this embodiment, a first assembly space 16 for installing the negative ion generating chamber is formed in the housing 1 above and below the filtering passage 14, and the negative ion emitting outlet panel 91 is a top plate of the housing 1 corresponding to the first assembly space 16, so that the air outlet 94 is opened on the top plate, negative ions generated by the negative ion generating component 9 can smoothly escape from the air outlet 94, and accordingly, the negative ion generating air inlets 11 are respectively opened on the side plates on the left and right sides corresponding to the first assembly space 16. During operation, the negative ion generating assembly 9 continuously emits a large amount of electrons outwards, thereby forming a continuous high-concentration negative oxygen ion group and then rapidly and effectively purifying the air in the kitchen. In the present embodiment, a second fitting space 17 is formed below the cabinet 1, and the second fitting space 17 is used for providing power supply, detection, control functions of the air cleaner, and a circuit board (not shown).
The kitchen air purifier of the invention has the following working processes: (1) The negative ion generator, the dust collector 5 and the dust collection fan 6 are started, the negative ion generation assembly 9 emits electrons to the kitchen air environment, so that a high-concentration negative oxygen ion group is formed in the kitchen air environment to purify the kitchen air, and meanwhile, the dust collection fan 6 circularly drives the air in the kitchen to pass through the primary filter screen 31 and the dust collector 5 in the dust collection channel 15, so that primary filtration and purification of the kitchen air are realized. (2) When the particle concentration in the kitchen air environment is reduced to a preset threshold value, the negative ion generator continues to operate, the air quantity of the dust collection fan 6 is reduced, the filtering fans 7 and the ultraviolet lamp 422 are started, and the filtering fans 7 drive the air in the kitchen to circulate through the first efficient filter screen 81 and the purifying component 4 in the filtering channel 14, so that the deep filtration and purification of the kitchen air are realized. Preferably, the air volume of each filter fan 7 in the embodiment is 0-2 m 3 Per min, the air quantity of the dust collecting fan 6 in the step (1) is 0-3 m 3 And the air volume of the dust collecting fan 6 in the step (2) is 0 to 1.5m 3 And/min. The reason why the air volume of the dust collecting fan 6 is reduced here is that: when the concentration of particles in the kitchen air environment falls to a preset threshold (corrected to a threshold) value, the extremely fine particle size particles in the kitchen air are smaller and smaller, and the air quantity of the dust collecting fan 6 is larger, so that the air flow speed in the dust collecting channel 15 is too high, and the adsorption of the particles by the dust collecting plate 51 of the dust collector 5 is not facilitated.
Therefore, the kitchen air purifier can carry out grading treatment on particles in the air, namely, preferentially treat particles with coarser particle size and then treat particles with finer particle size and particles with ultrafine particle size, so that the filtering and purifying capacity of the particles in the air is greatly improved, and particularly, the treatment of the particles with finer particle size and the particles with ultrafine particle size in the air is greatly improved, and the service life of each part is greatly prolonged. Meanwhile, the air in the kitchen is comprehensively treated through superposition of various purification modes such as anions, HEPA high-efficiency filter screens, dust collectors, active carbon filter screens 41, ultraviolet lamps 422 and the like, so that the purification effect is greatly improved. In addition, through the design of air intake 12, air outlet 13, filtration passageway 14 and album dirt passageway 15 for this air purifier can be under the condition that does not influence the interior air flow field of kitchen, does not influence range hood oil absorption fume effect's in the cooking in-process kitchen air environment of purification, has ensured cooking operator's health.
Claims (15)
1. The kitchen air purifier comprises a machine shell (1), wherein the front end of the machine shell (1) is provided with an air inlet (12), the rear end of the machine shell is provided with an air outlet (13), a filtering channel (14) is formed between the air inlet (12) and the air outlet (13) in the machine shell (1), and a filtering fan (7) is arranged in the filtering channel (14), and the kitchen air purifier is characterized in that a negative ion generating component (9) is arranged in the machine shell (1), and an air outlet (94) for negative ions generated by the negative ion generating component (9) to escape is formed in the machine shell (1);
a first high-efficiency filter screen (81) capable of filtering particles with smaller particle sizes is arranged in the filter channel (14);
a dust collecting channel (15) is also arranged in the shell (1), the dust collecting channel (15) is arranged in parallel with the filtering channel (14), and the two ends of the dust collecting channel (15) are respectively provided with the air inlet (12) and the air outlet (13);
a primary filter screen (31) and a dust collecting fan (6) for filtering particles with coarser particle diameters are arranged in the dust collecting channel (15);
the kitchen air purifying method of the kitchen air purifier comprises the following steps:
(1) Starting an anion generator, a dust collector (5) and a dust collection fan (6), wherein an anion generating component (9) emits electrons to the kitchen air environment, so that a high-concentration negative oxygen ion group is formed in the kitchen air environment to purify kitchen air, and meanwhile, the dust collection fan (6) drives air in a kitchen to circulate through a primary filter screen (31) and the dust collector (5) in the dust collection channel (15), so that primary filtration and purification of the kitchen air are realized;
(2) When the concentration of particles in the kitchen air environment is reduced to a preset threshold value, the negative ion generator continues to operate, the air quantity of the dust collection fan (6) is reduced, the filtering fans (7) and the ultraviolet lamps (422) are started, and the filtering fans (7) drive air in the kitchen to circulate through the first efficient filter screen (81) and the purifying component (4) in the filtering channel (14), so that deep filtration and purification of the kitchen air are realized.
2. Kitchen air cleaner according to claim 1, characterized in that a dust collector (5) is also arranged in the dust collecting channel (15), which dust collector (5) is arranged between the primary filter screen (31) and the air inlet port of the dust collecting fan (6).
3. Kitchen air cleaner according to claim 2, characterized in that a dust collecting air supply sleeve (61) is arranged between the dust collector (5) and the dust collecting fan (6), that the front port of the dust collecting air supply sleeve (61) communicates with the air outlet of the dust collector (5), that the rear port communicates with the air inlet port of the dust collecting fan (6), and that the dust collecting air supply sleeve (61) is necked down from the air outlet of the dust collector (5) to the air inlet port of the dust collecting fan (6).
4. Kitchen air purifier according to claim 1, characterized in that the filter channel (14) is further provided with a purification assembly (4), which purification assembly (4) is located between the first high-efficiency filter screen (81) and the air inlet port of the filter fan (7).
5. The kitchen air purifier according to claim 4, characterized in that the purification assembly (4) comprises at least one of an activated carbon filter screen (41) and a photocatalytic device (42).
6. The kitchen air purifier as recited in claim 5, characterized in that the photocatalytic device (42) includes a photocatalytic carrier (421) having a photocatalyst and an ultraviolet lamp (422) provided in the photocatalytic carrier (421), and ultraviolet rays emitted from the ultraviolet lamp (422) can radiate on the photocatalyst of the photocatalytic carrier (421) to induce a strong oxidation reaction.
7. The kitchen air purifier as recited in claim 6, wherein slits (4214) through which ultraviolet rays emitted from the ultraviolet lamp (422) pass are uniformly distributed on the photocatalytic carrier (421) along a circumferential direction, the side walls surrounding the slits (4214) are respectively coated with the photocatalyst, and an extending direction of the slits (4214) is perpendicular to a setting direction of the ultraviolet lamp (422) in the photocatalytic carrier (421).
8. Kitchen air purifier according to claim 4, characterized in that the number of filter fans (7) is two, which are arranged side by side, and that the inlet port of each filter fan (7) is opposite to the inlet opening (12) and the outlet port of each filter fan (7) is opposite to the outlet opening (13).
9. The kitchen air purifier as recited in claim 8, characterized in that a filter air supply sleeve (71) is further provided on a front side of each filter fan (7), a rear port of each filter air supply sleeve (71) is respectively communicated with an air inlet port of each filter fan (7), a front port of each filter air supply sleeve (71) is respectively directed toward the purifying assembly (4), and each filter air supply sleeve (71) is respectively necked down from the purifying assembly (4) to the air inlet port of the filter fan (7).
10. The kitchen air purifier as claimed in claim 9, wherein a second efficient filter screen (82) is provided on the air outlet of each filter fan (7), the second efficient filter screen (82) has a larger pore size than the first efficient filter screen (81), and the second efficient filter screen (82) is a HEPA efficient filter screen.
11. The kitchen air purifier according to any one of claims 1-9, characterized in that the first efficient filter (81) is a HEPA efficient filter.
12. The kitchen air purifier according to any one of claims 1-10, characterized in that the housing (1) has a square shape, and the air inlet (12) and the air outlet (13) extend to a majority of the front end surface and a majority of the rear end surface of the housing (1), respectively;
the filter channels (14) and the dust collecting channels (15) extend along the width direction of the casing (1) respectively.
13. The kitchen air purifier according to any one of claims 1-10, characterized in that the primary filter screen (31) is arranged at the air inlet (12) corresponding to the filter channel (14), and the primary filter screen (31) is arranged at the front side of the first efficient filter screen (81);
the filtering channel (14) and the dust collecting channel (15) are respectively provided with an air outlet filter screen (32) at the corresponding air outlet (13).
14. The kitchen air purifier according to any one of claims 1-10, wherein the negative ion generating assembly (9) comprises a negative ion generator, a base plate (93), a negative ion emitter (90), a dust cover (92) and a negative ion emission outlet panel (91);
negative ion emitters (90) are uniformly distributed on the substrate (93), the negative ion emission outlet panels (91) are side plates on one side of the shell (1), the number of the dustproof sleeves (92) is in one-to-one correspondence with the negative ion emitters (90), one end of each dustproof sleeve (92) is fixed on the substrate (93) and sleeved on the periphery of the negative ion emitter (90), through holes (911) which are in one-to-one correspondence with the dustproof sleeves (92) and are matched with the ports on the other ends of the dustproof sleeves (92) are formed in the corresponding positions of the negative ion emission outlet panels (91), the other ends of the dustproof sleeves (92) are fixed on the negative ion emission outlet panels (91), the ports on the other ends of the dustproof sleeves (92) are opposite to the corresponding through holes (911), and the air outlets (94) are formed in the surfaces of the negative ion emission outlet panels (91) on the periphery of the through holes (911) at intervals along the circumferential direction.
15. The kitchen air purifier according to any one of claims 1-10, characterized in that the air volume of each filter fan (7) is 0-2 m 3 /min, the setThe air quantity of the dust blower (6) in the step (1) is 0-3 m 3 And/min, wherein the air volume of the dust collection fan (6) in the step (2) is 0-1.5 m 3 /min。
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| CN105135539A (en) * | 2015-07-08 | 2015-12-09 | 宁波方太厨具有限公司 | Air purifier for home kitchen |
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| JP3178425U (en) * | 2012-07-04 | 2012-09-13 | 康百事電通股▲分▼有限公司 | Built-in multifunction air purifier for kitchen |
| CN102944048B (en) * | 2012-10-12 | 2014-08-20 | 江苏大学 | Air purifier with automatic working mode switching function and purification method of air purifier |
| US9737842B2 (en) * | 2014-04-25 | 2017-08-22 | Fellowes, Inc. | Air purifier with intelligent sensors and airflow |
| CN204421206U (en) * | 2014-12-26 | 2015-06-24 | 广东美的制冷设备有限公司 | Air cleaning unit and clean air package |
| CN104930565B (en) * | 2015-07-02 | 2017-02-22 | 青岛科瑞新型环保材料集团有限公司 | Kitchen waste heat comprehensive utilization system |
| CN205174575U (en) * | 2015-09-15 | 2016-04-20 | 洪俊彬 | Novel environmental protection and energy saving negative ion air -cleaner |
| CN107449108B (en) * | 2017-07-22 | 2019-12-24 | 广州雅康净化工程有限公司 | Air purification method and air purification system |
| CN207674621U (en) * | 2017-12-30 | 2018-07-31 | 宁波方太厨具有限公司 | A kind of kitchen air purifying device |
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| CN105135539A (en) * | 2015-07-08 | 2015-12-09 | 宁波方太厨具有限公司 | Air purifier for home kitchen |
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