CN105135539B - Family kitchen air purifier - Google Patents
Family kitchen air purifier Download PDFInfo
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- CN105135539B CN105135539B CN201510398685.4A CN201510398685A CN105135539B CN 105135539 B CN105135539 B CN 105135539B CN 201510398685 A CN201510398685 A CN 201510398685A CN 105135539 B CN105135539 B CN 105135539B
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- filter screen
- activated carbon
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- air
- carbon felt
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Classifications
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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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Catalysts (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
A kind of family kitchen air purifier includes the shell with front end air inlet and rear end air outlet, is equipped with filtration channel inside the housing, wind turbine is equipped in filtration channel, it is characterised in that：It is equipped in filtration channel for filtering compared with the prime filter device of coarse grain diameter particle and for filtering the rear class filter device compared with fine grain particle, the rotary sieve for stopping and filtering out oiliness particle being additionally provided in filtration channel.The advantage of the invention is that：The family kitchen air purifier is designed for family kitchen air environment, it can keep working normally in the case of lasting sucking oil smoke, remaining oil smoke, burning waste gas and peculiar smell in air in kitchen can effectively be removed, virus, bacterium in killing air, to significantly improve family kitchen air quality, and, it uses first thick rear essence, classification removal is realized to smoke particle so that the service life of each component is greatly prolonged, and meets purifying property requirement after each component synthesis.
Description
Technical Field
The invention relates to an air purification device, in particular to an air purifier for a household kitchen.
Background
During cooking, edible oil forms a mixture of 3 organic forms, namely oil smoke, in gas state, liquid state and solid state under high temperature. Depending on the morphology, the mixture of liquid and solid particles, called oil mist, is divided into settleable and inhalable particles; the gaseous part is Volatile Organic Compounds (VOCs), gaseous pollutants in the household kitchen and also combustion exhaust gases. The particle size of the settleable particles in the oil fume is mainly distributed between 10 and 400um, and the particles can be settled on the ground and the surfaces of other objects under the action of self gravity and the interaction between the particles, so that the air environment of a kitchen cannot be permanently polluted. Generally, particles with the particle size of below 10um are called inhalable particles, namely PM10, the particles are not easy to settle and always float in the air environment of a kitchen, and the particles can be inhaled by a human body and deposited on the respiratory tract, the alveolus and the like to cause diseases and harm the health of the human body. The smaller the particle size of the particles, the deeper the site of entry into the respiratory tract. Particles with a diameter of less than or equal to 2.5um among respirable particles are called respirable lung particles, i.e., PM2.5, and compared with particles with a particle size of more than 2.5um and less than 10um, PM2.5 is more harmful to human body, and VOCs can also form PM2.5 through chemical reaction in air.
The pollution of cooking oil smoke and the harm effect on human health become a very important indoor environmental problem. The range hood is used as an electric appliance for purifying the kitchen environment, exhaust gas burnt by a stove and oil smoke generated in the cooking process can be quickly pumped away and exhausted outdoors, so that the pollution to the air environment in the kitchen is reduced, but it is difficult to completely exhaust the exhaust gas, the oil smoke and peculiar smell only through the range hood, because escape parts always exist in the pumping process, the exhaust gas, the oil smoke and the peculiar smell which cannot be exhausted stay in the kitchen, the health of people is threatened, and the original air quality in the household kitchen cannot be improved by using the range hood. Meanwhile, the demand of the current consumers for the open kitchen of the home is strong, but in the cooking process, once the kitchen is opened, the air environment of the dining room and the living room is affected despite the use of the range hood.
In recent years, as the public attaches importance to the air quality and health, the market for air purifier products is rapidly expanding. However, no air purifier product specially adapted for household kitchen exists so far, which is mainly due to the fact that the air environment of the household kitchen is special, compared with the common indoor air environment, the kitchen air environment contains more oil drop particles, edible oil, decomposition products (VOCs) of food which are chemically changed in the heating process, combustion waste gas (carbon monoxide, nitrogen oxides and the like), and is more humid, and under the indoor air environment, the common air purifier cannot complete the task.
If a common air purifier is placed in an air environment of a household kitchen for use, the air purifier using the granular activated carbon filter screen can be contacted with incoming air firstly, oil drop particles (belonging to liquid granules) exist in the air, the air is more humid, in the using process, the activated carbon granules can absorb a lot of moisture and easily generate peculiar smell, and meanwhile, the oil drops directly contacted with the granular activated carbon filter screen can be adhered to the surfaces of the granules to block adsorption holes, so that after the air purifier is used for a short period of time, the effects of adsorbing harmful gas and removing the peculiar smell can be greatly reduced or even completely lost. For an air purifier using an activated carbon fiber filter screen, the HEPA high-efficiency filter screen can firstly contact incoming air, and can intercept a large amount of oil drop particles and solid particles in the air and absorb moisture in the air. Because the fiber yarn made of the HEPA high-efficiency filter screen is not oleophilic and not hydrophilic (the intercepted oil drop particles and the absorbed water stay on the surface of the fiber), the oil drop particles in the air can be coated on the fiber yarn, and in addition, the intercepted solid particles are added, under the condition, the fiber yarn and the fiber yarn can be quickly glued and adhered together, after the HEPA high-efficiency filter screen is used for a short period of time, the wind resistance of the HEPA high-efficiency filter screen can become large, and the normal use is seriously influenced; the interior of the filter screen becomes moist due to the fact that a large amount of moisture is absorbed, and therefore a convenient environment is provided for the bacteria breeding in a large amount. In addition, for the photolysis link of a common air purifier, the catalytic layer is extremely afraid of oil, and if the oil cannot be removed through the previous links of the photolysis, the catalytic layer can be covered by oil stains to cause the photolysis to lose the effect. Therefore, in the case of a general air cleaner, if it is desired to be used in a kitchen air environment, the above problems are not avoidable, the service life of the air cleaner is greatly shortened due to the particularity of the use environment, its normal use is seriously affected and limited, and it itself becomes a pollution source after a short time of use.
Disclosure of Invention
The invention aims to solve the technical problem of providing a household kitchen air purifier which can filter and purify kitchen air in a grading manner and has good filtering efficiency aiming at the current situation of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: this family kitchen air purifier, which comprises an outer shell, be equipped with front end air intake and rear end air outlet on the shell, be equipped with the filtration passageway between front end air intake and the rear end air outlet in the shell position, be equipped with fan, its characterized in that in the filtration passageway: the filter channel is internally provided with a front stage filter device for filtering particles with larger particle size and a rear stage filter device for filtering particles with smaller particle size, and the filter channel is also internally provided with a rotary filter screen for blocking and filtering oily particles.
Preferably, the pre-filtering device comprises at least one of the following filtering devices: primary filter screen, mechanical filter.
Further preferably, the post-stage filtering device comprises at least one of the following filtering devices: deep deoiling net, oleophobic and hydrophobic filter net and active carbon filter net.
Further preferably, preceding stage filter equipment include primary filter screen and mechanical filter, back stage filter equipment include deep-layer oil removal net, oleophobic hydrophobic filter screen and active carbon filter screen.
The mechanical filter can have multiple structures, preferably, the mechanical filter is arranged between the primary filter screen and the air inlet of the fan, the mechanical filter comprises two rows of cylindrical filter sheets which are arranged oppositely, each cylindrical filter sheet is of a U-shaped groove structure, and the notches of the U-shaped grooves of the two rows of cylindrical filter sheets are opposite and mutually meshed. After the mechanical filter adopts the structure, the filtering effect is better.
In order to enable the deep oil removal net to carry out layered filtration, the deep oil removal net is divided into a front end layer, a middle layer and a rear end layer, the front end layer, the middle layer and the rear end layer are all fiber woven layers, the weaving density of the front end layer is greater than that of the middle layer, and the weaving density of the middle layer is greater than that of the rear end layer. The filtering material of the deep oil removing net adopts a deep filtering structure, and the fibers are woven in a layered mode, so that the deep oil removing net has the characteristics of low wind resistance, high filtering efficiency and long service life. In addition, the fiber filaments used for weaving the filter material can absorb oil, so that the cementing adhesion among fibers in the using process can be avoided, and the service life of the deep oil removing net is prolonged.
In order to obtain better filtering effect, the oleophobic and hydrophobic filter screen is a HEPA high-efficiency filter screen made of glass fiber. Preferably, a HEPA high-efficiency filter screen made of H13 filtering grade glass fiber can be adopted.
In order to increase the external surface area of the activated carbon, the activated carbon filter screen is a filter screen woven by activated carbon fibers and has a fold-shaped structure. Therefore, after the external surface area is increased, the adsorption and impurity removal capacity of the activated carbon can be improved, and the service life can be prolonged.
In order to decompose free harmful substances in the air into substances harmless to human bodies, a photocatalyst device for photolysis of the substances filtered by the activated carbon filter screen is arranged in the filtering channel.
As a preferred scheme of the purifier, the primary filter screen, the mechanical filter and the fan are sequentially arranged at the lower part in the shell from front to back and are close to the front-end air inlet, the deep oil removing net, the oleophobic and hydrophobic filter screen, the activated carbon filter screen and the photocatalyst device are sequentially arranged at the upper part in the shell from front to back, and the air outlet of the fan faces the deep oil removing net.
Preferably, upper portion in the shell is equipped with the housing, deep deoiling net, oleophobic hydrophobic filter screen, active carbon filter screen and photocatalyst device locate the housing in, the housing bottom is opened there is the through-hole, the fan be centrifugal fan, the centrifugal fan air outlet passes through the through-hole orientation deep layer deoiling net, centrifugal fan's air intake orientation mechanical filter.
In order to obtain better filtering effect, the rotary filter screen is arranged on a motor shaft of the centrifugal fan and is over against the mechanical filter.
In order to collect oil drop particles and solid particles blocked by the mechanical filter and the rotary filter screen, an oil collecting box is arranged at the bottom of the shell and is positioned below the mechanical filter and the rotary filter screen.
The photocatalyst device can have multiple structures, preferably, photocatalyst device include casing, first active carbon felt, second active carbon felt, first ultraviolet lamp and second ultraviolet lamp, first active carbon felt and second active carbon felt locate the front and back both sides of casing respectively, first ultraviolet lamp and second ultraviolet lamp locate between first active carbon felt and the second active carbon felt, first active carbon felt just right the active carbon filter screen, second active carbon felt just right the rear end air outlet of shell. Therefore, after the incoming air passes through the photocatalyst device, free harmful substances in the air can be decomposed into substances which are harmless to human bodies, such as volatile organic compounds, carbon monoxide, nitrogen oxides and the like, bacteria and viruses in the air can be killed, and secondary pollution can not be generated.
In order to prevent ultraviolet rays from penetrating through the second activated carbon felt to directly irradiate the human body and causing damage to the human body, a light-shading air outlet cover is additionally arranged at the rear-end air outlet.
Preferably, the first activated carbon felt and the second activated carbon felt are both immobilized with nano-grade TiO2The main wavelength of the first ultraviolet lamp is 254nm, and the main wavelength of the second ultraviolet lamp is 365 nm. TiO2 is used as a photocatalyst (semiconductor material which does not change under the irradiation of light, but can promote chemical reaction and has catalytic function), after absorbing ultraviolet rays in sunlight or illumination light sources, the photocatalyst can generate oxidation reduction reaction under the excitation of ultraviolet ray energy, hydroxyl radicals and superoxide anion radicals with strong oxidizing property are formed on the surface, and harmful substances (various organic compounds and partial inorganic substances) and microorganisms free in the air can be decomposed into harmless carbon dioxide and water, thereby achieving the purposes of purifying the air, sterilizing, deodorizing and the like. The photocatalyst can only be used under the irradiation of ultraviolet rays, and two ultraviolet lamps with main wavelengths of 254nm and 365nm are selected as the photocatalystAs a light source, air can not generate ozone under the irradiation of ultraviolet rays with two wavelengths, the air can not only activate a photocatalyst, but also has strong destructive power of ultraviolet rays with the wavelength of 254nm on microorganisms, after the ultraviolet rays with the wavelength are irradiated on bacteria or viruses, nucleoprotein and ribonucleic acid of bacteria cells or viruses can strongly absorb energy of the wavelength, and the binding state of the protein and the nucleic acid is broken, so that the bacteria or the viruses are killed.
As another preferred scheme of clarifier, rotary filter screen locate mechanical filter and deep deoiling net between be equipped with in the filtration passageway and be used for the drive rotary filter screen pivoted motor, just first effect filter screen, mechanical filter, rotary filter screen and deep deoiling net locate in proper order from preceding upper portion in the shell, just first effect filter screen is just right the front end air intake the below top-down of deep deoiling net has set gradually oleophobic hydrophobic filter screen, active carbon filter screen, photocatalyst device and fan, the air outlet orientation of fan the rear end air outlet.
Preferably, the inside of shell is equipped with the housing, deep deoiling net, oleophobic hydrophobic filter screen, active carbon filter screen, photocatalyst device locate the housing in, the bottom of housing have with the through-hole that the air intake of wind is linked together.
In order to collect oil drop particles and solid particles blocked by the rotary filter screen, an oil collecting box is arranged in the shell and is positioned below the rotary filter screen.
This photocatalyst device of preferred scheme includes casing, first activated carbon felt, second activated carbon felt, first ultraviolet lamp and second ultraviolet lamp, first activated carbon felt and second activated carbon felt locate the upper and lower both sides of casing respectively, first ultraviolet lamp and second ultraviolet lamp locate between first activated carbon felt and the second activated carbon felt, first activated carbon felt just right the activated carbon filter screen, second activated carbon felt just right the air intake of fan.
Compared with the prior art, the invention has the advantages that: the household kitchen air purifier is designed aiming at the household kitchen air environment, after coarse-first and fine-second layered filtering, purification and photo-catalytic device photo-decomposition are adopted, the service life of each part is greatly prolonged, normal work can be kept under the condition of continuously sucking oil smoke, larger oil drop particles and inhalable particles (including smaller oil drop particles in the range of the inhalable particles) in the air can be removed, virus and bacteria in the air are killed, peculiar smell and gaseous pollutants in the air are removed, the greasy feeling of a household kitchen is eliminated, a safe diet environment and a healthy air environment are created, the traditional household kitchen is opened, the environments of a restaurant and a living room cannot be influenced, and the possibility is provided for solving similar problems for the open kitchen.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of each filter assembly and a photocatalyst apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic exploded view of a first embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a mechanical filter according to an embodiment of the present invention;
FIG. 6 is a block diagram of an air purification process according to a first embodiment of the present invention;
fig. 7 is a schematic diagram of a knitting structure of a deep oil removal net according to a first embodiment of the present invention;
FIG. 8 is a schematic view of a home location according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram according to a second embodiment of the present invention;
FIG. 10 is a schematic structural diagram of another angle according to the second embodiment of the present invention;
fig. 11 is a schematic exploded perspective view of a second embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 6, the household kitchen air purifier in this embodiment includes a housing 1, the housing 1 is provided with a front-end air inlet 11 and a rear-end air outlet 12, the housing further has a side plate 13 and a bottom plate 14, a filtering channel is provided inside the housing 1 between the front-end air inlet 11 and the rear-end air outlet 12, and a primary filter screen 2, a mechanical filter 3, a rotary filter screen 4, a fan 5, a deep oil removal screen 6, an oil-repellent hydrophobic filter screen 7, an activated carbon filter screen 8 and a photocatalyst device 9 are sequentially installed in the filtering channel from the front-end air inlet 11 to the rear-end air outlet 12.
Wherein, the primary filter screen 2 and the mechanical filter 3 form a front-stage filter device for filtering particles with thicker particle size, and the deep-layer oil removing screen 6, the oleophobic and hydrophobic filter screen 7 and the active carbon filter screen 8 form a rear-stage filter device for filtering particles with finer particle size.
Specifically, fan 5 is centrifugal fan, primary filter screen 2, mechanical filter 3 and fan 5 locate the inside latter half of shell 1 and be close to front end air intake 11 from preceding backward in proper order, be equipped with housing 18 at the inside first half of shell 1, form the passageway in the housing 18, deep deoiling net 6, oleophobic hydrophobic filter screen 7, active carbon filter screen 8 and photocatalyst device 9 locate in housing 18 from preceding backward in proper order, open the through-hole that is linked together with fan 5 air outlet in the bottom of housing 18, fan 5 air outlet is up and towards deep deoiling net 6, install oil collecting box 10 in the bottom of shell 1, and oil collecting box 10 is located the below of mechanical filter 3 and rotary filter 4. In addition, the rear end of the housing 1 is provided with a control switch 16 and an external power supply line 17.
The general idea on this family kitchen air purifier development is: coarse purification and fine purification, long purification step by step, and superposition of different methods, namely, different purification methods are combined and applied to one block to achieve the purpose of purification in a synergistic manner. When removing particle pollutants, large particles in the air are removed, and medium, small and smaller particles in the air are removed, so that the service life of each purifying component in the purifier is prolonged, and the purifying performance requirements of the purifier are met after all the purifying components are integrated. When the purifier works, air to be purified, which enters the filtering channel from the front-end air inlet 11, sequentially passes through the filtering component for layered filtering and purification and the photocatalyst device 9 for photolysis and then flows out of the rear-end air outlet 12.
The primary filter screen 2 in the embodiment is made of high-quality polyester synthetic fiber, can be cleaned, is thin in thickness and large in filter mesh size, is mainly used for filtering hair, fiber velvet, large particles, leather scraps and the like in air, and can play a role in protecting each part at the rear end of the household kitchen air purifier.
The mechanical filter 3, the rotary screen 4 and the deep oil-removing screen 6 in this embodiment are designed mainly for oil drop particles in the air, but they may also block solid particles. Wherein,
the mechanical filter 3 is arranged between the primary filter screen 2 and the air inlet of the fan 5, the mechanical filter 3 comprises two rows of cylindrical filter sheets 31 which are oppositely arranged, each cylindrical filter sheet 31 is of a U-shaped groove structure, and the notches of the U-shaped grooves of the two rows of cylindrical filter sheets 31 are opposite and mutually meshed. Mechanical filter 3 utilizes inertial collision principle to make, when the air meets blockking of object in the motion process, the air current will change direction and carry out the stream of detouring, tiny oil droplet particle and solid-state granule can follow the air current and flow together in the air, and thick oil droplet particle and solid-state granule can break away from the streamline owing to have great inertia, keep the inertial motion of self, thick oil droplet particle and solid-state granule just collide with the object like this and separate from the air, the granule that it blockked, some can drop to the collection oil box 10 of filter passage below under the action of gravity, some then can adhere on mechanical filter 3's inner wall. The method of adjusting the shape and the gap of the filtering channel is adopted to achieve the purposes of blocking particles with certain sizes, enabling the flowing wind resistance to be appropriate and enabling the channel not to be blocked.
The rotary filter screen 4 is arranged at the air inlet of the fan 5 and is arranged on the motor shaft 51 of the fan 5, and the rotary filter screen 4 is over against the mechanical filter 3. The rotary filter screen 4 effectively intercepts oil drop particles and solid particles in air through dynamic mechanical shielding, simultaneously adopts a physical centrifugal principle, and rotates at a high speed through a specially designed screen disc (used on a household kitchen air purifier, the whole flow is not influenced, and the whole noise is not increased) to generate a centrifugal effect, so that the intercepted oil drop particles and the intercepted solid particles are effectively thrown into an oil guide groove and then flow into an oil collecting box 10, and the aim of purifying incoming air is fulfilled. When the air passes through the rotary filter screen 4, no matter the size of particles in the air, all the particles which can touch the screen disc can be blocked.
As shown in fig. 7, the deep oil removing net 6 is divided into a front end layer 61, an intermediate layer 62 and a rear end layer 63, the front end layer 61, the intermediate layer 62 and the rear end layer 63 are all fiber woven layers, the weaving density of the front end layer 61 is greater than that of the intermediate layer 62, and the weaving density of the intermediate layer 62 is greater than that of the rear end layer 63. The filtering material used by the deep oil removing net 6 is woven by a special mode and a special process, the filtering material has a certain thickness and belongs to a deep filtering structure, the weaving density degree of fibers in the filtering material is different, the fiber tissue is loose, and the formed high porosity increases the holding capacity of impurities. The filter material can be in the future large particle of flowing air is held back at the fibre surface, catches in the internal fiber of the deep front end of filter material with less particle, catches in the internal fiber of the middle of the filter material deep, catches in the internal fiber of the deep rear end of filter material with more tiny particle, and it has high filtration efficiency and high life under the condition of keeping low windage. Different from the common filter screen which directly intercepts the particles larger than the filter mesh on the surface of the filter screen, the deep filter material is characterized in that the particles are captured by dense fiber filaments. The used cellosilk of this filtering material is woven and is made jointly by utilizing vegetable fibre and the fibrous material that can adsorb oil, the oil droplet particle that the filtering material was intercepted just can not stop on the cellosilk surface with absorbent moisture like this but enter into inside the cellosilk, cellosilk and cellosilk just can not be in the same place at the glued adhesion of the combined action of oil droplet particle and solid-state granule down like this, can not influence the normal use that deep deoiling was netted, thereby keep the normal work of clarifier, can not make the life of clarifier shorten because kitchen air circumstance's particularity. The filter material of the deep oil removing net is in a fold shape, the filter area is large, the dust capacity is high, the service cycle is long, the concept of lengthening each step is met, and meanwhile, the fold structure also enhances the strength of the whole oil removing net, so that the oil removing net is not easy to deform under the conditions of being affected with damp and being pressed. The filtering effect of the deep oil removing net on particles can reach the EPA sub-high efficiency filter net standard of E12 filtering grade (EN 1822-2009).
The hydrophobic filter screen 7 of oleophobic in this embodiment is the HEPA high efficiency filter screen of glass fiber material. The HEPA high-efficiency filter screen is the best filter material internationally acknowledged, is formed by interweaving very fine organic fibers, has strong capture capacity on particles, small pore diameter, large adsorption capacity and high purification efficiency, and is characterized in that air can pass through but fine particles cannot pass through. The HEPA used materials on 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 filter effect of the glass fiber materials is good. In this embodiment, a HEPA high efficiency filter screen made of glass fiber with H13 filtration grade (EN 1822-2009) is used.
The activated carbon filter screen 8 in this embodiment is a filter screen woven from activated carbon fibers and has a corrugated structure. The activated carbon is a very good adsorbent, and is prepared by using charcoal, various shells, high-quality coal and the like as raw materials and performing a series of processes such as crushing, sieving, catalyst activation, rinsing, drying, screening and the like on the raw materials through physical and chemical methods. It has the double characteristics of physical adsorption and chemical adsorption, and can adsorb harmful gas and peculiar smell in the air. Most of the active carbon filter screens used in air purifiers on the market at present are manufactured by filling amorphous columnar granular active carbon into aluminum honeycombs, plastic honeycombs, paper honeycombs and the like with through hole structures as carriers. Under the same volume, the specific surface area of the activated carbon fiber is not greatly different from that of the columnar activated carbon, but the external surface area of the activated carbon fiber is 300-1000 times of that of the columnar activated carbon, and the huge external surface area greatly enhances the adsorption and impurity removal capacity of the activated carbon fiber. The active carbon filter screen 8 adopted in the method is formed by tightly arranging and weaving active carbon fibers prepared by taking coconut shells as raw materials, and meanwhile, the filter screen adopts a fold-shaped structure to increase the adsorption area and prolong the service life.
The photocatalyst device 9 in this embodiment includes a casing 91, a first activated carbon felt 92, a second activated carbon felt 93, a first ultraviolet lamp 94 and a second ultraviolet lamp 95, where the first activated carbon felt 92 and the second activated carbon felt 93 are respectively disposed on the front and rear sides of the casing 91, the first ultraviolet lamp 94 and the second ultraviolet lamp 95 are disposed between the first activated carbon felt 92 and the second activated carbon felt 93, the first activated carbon felt 92 faces the activated carbon filter screen 8, and the second activated carbon felt 93 faces the rear air outlet 12 of the casing 1. The first activated carbon felt 92 and the second activated carbon felt 93 are both activated carbon felts immobilized with nano-TiO 2 powder particles (the activated carbon felts are prepared by adopting a polymer bonding material to carry powdery activated carbon on a fiber substrate), the dominant wavelength of the first ultraviolet lamp 94 is 254nm, and the dominant wavelength of the second ultraviolet lamp 95 is 365 nm. TiO2 is used as a photocatalyst (semiconductor material which does not change under the irradiation of light, but can promote chemical reaction and has catalytic function), after absorbing ultraviolet rays in sunlight or illumination light sources, the photocatalyst can generate oxidation reduction reaction under the excitation of ultraviolet ray energy, hydroxyl radicals and superoxide anion radicals with strong oxidizing property are formed on the surface, and harmful substances (various organic compounds and partial inorganic substances) and microorganisms free in the air can be decomposed into harmless carbon dioxide and water, thereby achieving the purposes of purifying the air, sterilizing, deodorizing and the like. The photocatalyst has no strict limitation on the temperature, and can generate oxidation-reduction reaction under the normal temperature condition. The photocatalyst can play a role only under the irradiation of ultraviolet rays, two ultraviolet lamps with the main wavelengths of 254nm and 365nm are selected as light sources, air can not generate ozone under the irradiation of the ultraviolet rays with the two wavelengths, the photocatalyst can be activated, meanwhile, the destructive power of the ultraviolet rays with the wavelength of 254nm to microorganisms is strong, after the ultraviolet rays with the wavelength are irradiated to bacteria or viruses, nucleoprotein and ribonucleic acid of the bacteria cells or the viruses can strongly absorb the energy of the wavelength, and the combination state of the protein and the nucleic acid is broken, so that the bacteria or the viruses are killed. Therefore, after the incoming air passes through the photo-catalytic device 9, the free harmful substances in the air can be decomposed into substances harmless to human body, such as volatile organic compounds, carbon monoxide, nitrogen oxides, etc., and bacteria and viruses in the air can also be killed, and no secondary pollution is generated, i.e. photo-decomposition is performed through the photo-catalytic device 9. In addition, the air outlet 12 at the rear end of the purifier is provided with a light-shading air outlet cover 15, so that ultraviolet rays can be prevented from penetrating through the activated carbon felt and directly irradiating on a human body, and the human body is prevented from being injured.
The household kitchen air purifier in the embodiment has the advantages of almost the same size as a common air purifier, convenience in use and no influence on the internal pattern of a household kitchen. The oil smoke exhausting device can work normally in a special indoor environment of a household kitchen, and the service life of the oil smoke exhausting device cannot be rapidly reduced due to continuous oil smoke suction. The purifier is placed at a proper position in a traditional household kitchen and is matched with a smoke exhaust ventilator for use, so that the purpose that the kitchen is kept open and the air environment of a restaurant and a living room is not influenced in the cooking process of the kitchen can be achieved, and meanwhile, the air environment in the kitchen can be effectively improved in the cooking process. When the cooking operation is finished, the purifier can be used for continuously and circularly purifying the air environment in the kitchen, removing particle pollutants in the air, eliminating peculiar smell and harmful gas in the kitchen and killing viruses and bacteria in the air.
The proper position of the household kitchen purifier needs to be adjusted according to different internal patterns of the household kitchen. The principle of the arrangement is that the purifier cannot be too close to the oil smoke generating source, and the air inlet of the purifier cannot be directly opposite to the oil smoke generating source, so that the oil smoke absorbing effect of the range hood can be deteriorated, and the escape amount of the oil smoke in the suction process is increased. The experiment test result shows that the air environment in the kitchen is effectively improved, and when the air purifier is operated at a proper position in the kitchen, the aim of opening the kitchen without influencing the environments of a restaurant and a living room in the kitchen cooking operation process can be really fulfilled
As shown in fig. 8, the purifier a is prevented from being in the kitchen b, arrow d is the air inlet direction of the door inlet of the restaurant c, the air inlet at the front end of the purifier a faces the restaurant c, and the air inlet flow plays a role in shielding oil smoke in the kitchen b from dissipating to the restaurant c. According to the thought, the proper placement position of the air purifier is selected, and an ideal effect can be achieved when the air purifier is used in a household kitchen.
Example two:
as shown in fig. 9 to 11, the household kitchen air purifier in this embodiment includes a housing 1, the housing 1 is provided with a front air inlet 11 and a rear air outlet 12, the housing further has a side plate 13 and a bottom plate 14, and a filtering channel is disposed inside the housing 1 between the front air inlet 11 and the rear air outlet 12.
In this embodiment, the rotary strainer 4 is disposed between the mechanical filter 3 and the deep oil removal strainer 6, and a motor 19 for driving the rotary strainer to rotate is installed in the filtering passage. Just imitate filter screen 2, mechanical filter 3, rotary filter 4 and deep deoiling net 6 from preceding upper portion of locating in proper order in the shell 1 backward, and just imitate filter screen 2 just to front end air intake the below top-down of deep deoiling net 6 has set gradually and has dredged oily hydrophobic filter screen 7, active carbon filter screen 8, photocatalyst device 9 and fan 5, and fan 5 also adopts centrifugal fan, and the air outlet orientation of fan 5 the rear end air outlet.
The shell 18 is arranged in the shell 1, the deep oil removing net 6, the oil-repellent hydrophobic filter net 7, the active carbon filter net 8 and the photocatalyst device 9 are arranged in the shell 18, and the bottom of the shell 18 is provided with a through hole communicated with an air inlet of the fan 5. An oil collecting box 10 is arranged in the shell 1, and the oil collecting box 10 is positioned below the rotary filter screen 4.
The photocatalyst device 9 in this embodiment includes a casing 91, a first activated carbon felt 92, a second activated carbon felt 93, a first ultraviolet lamp 94 and a second ultraviolet lamp 95, wherein the first activated carbon felt 92 and the second activated carbon felt 93 are respectively disposed on the upper and lower sides of the casing 91, the first ultraviolet lamp 94 and the second ultraviolet lamp 95 are disposed between the first activated carbon felt 92 and the second activated carbon felt 93, the first activated carbon felt 92 faces the activated carbon filter screen 8, and the second activated carbon felt 93 faces the air inlet of the fan 5.
Other structures of this embodiment are the same as those of the first embodiment, and will not be described herein.
Claims (14)
1. The utility model provides a family kitchen air purifier, includes shell (1), be equipped with front end air intake (11) and rear end air outlet (12) on shell (1), be equipped with the filtration passageway between inside front end air intake (11) and the rear end air outlet (12) that is located of shell (1), be equipped with fan (5), its characterized in that in the filtration passageway: the filter channel in be equipped with preceding stage filter equipment that is used for filtering the particle of coarser particle diameter and the back level filter equipment that is used for filtering the particle of finer particle diameter filtration channel in still be equipped with rotary filter screen (4) that are used for blockking and filtering oily particle, preceding stage filter equipment include primary filter screen (2) and mechanical filter (3), back level filter equipment including deep deoiling net (6), oleophobic hydrophobic filter screen (7) and active carbon filter screen (8) the filter channel in still be equipped with photocatalyst device (9) that carry out photolysis to the material after the active carbon filter screen filters, primary filter screen (2), mechanical filter (3) and fan from preceding lower part of locating in shell (1) in proper order backward and be close to front end air intake (11), deep deoiling net (6), oleophobic hydrophobic filter screen (7), Activated carbon filter screen (8) and photocatalyst device (9) locate upper portion in shell (1) from preceding backward in proper order, the air outlet orientation of fan deep deoiling net (6) upper portion in the shell is equipped with housing (18), deep deoiling net (6), oleophobic hydrophobic filter screen (7), activated carbon filter screen (8) and photocatalyst device (9) locate housing (18) in, open housing (18) bottom has the through-hole, fan (5) be centrifugal fan, the centrifugal fan air outlet passes through the through-hole orientation deep deoiling net (6), centrifugal fan's air intake orientation mechanical filter (3).
2. A home kitchen air cleaner as claimed in claim 1, wherein: the mechanical filter (3) is arranged between the primary filter screen (2) and the air inlet of the fan (5), the mechanical filter (3) comprises two rows of cylindrical filter sheets (31) which are arranged oppositely, each cylindrical filter sheet (31) is of a U-shaped groove structure, and the notches of the U-shaped grooves of the two rows of cylindrical filter sheets (31) are opposite and are mutually meshed.
3. A home kitchen air cleaner as claimed in claim 1, wherein: the deep oil removing net (6) is divided into a front end layer (61), a middle layer (62) and a rear end layer (63), the front end layer (61), the middle layer (62) and the rear end layer (63) are all fiber woven layers, the weaving density of the front end layer (61) is larger than that of the middle layer (62), and the weaving density of the middle layer (62) is larger than that of the rear end layer (63).
4. A home kitchen air cleaner as claimed in claim 1, wherein: the oleophobic and hydrophobic filter screen (7) is a HEPA high-efficiency filter screen made of glass fiber.
5. A home kitchen air cleaner as claimed in claim 1, wherein: the active carbon filter screen (8) is a filter screen woven by active carbon fibers and has a fold-shaped structure.
6. A home kitchen air cleaner as claimed in claim 1, wherein: the rotary filter screen (4) is arranged on a motor shaft of the centrifugal fan, and the rotary filter screen (4) is right opposite to the mechanical filter (3).
7. The home kitchen air purifier of claim 6, wherein: an oil collecting box (10) is installed at the bottom of the shell (1), and the oil collecting box (10) is located below the mechanical filter (3) and the rotary filter screen (4).
8. A home kitchen air cleaner as claimed in claim 1, wherein: the method is characterized in that: photocatalyst unit (9) include casing (91), first activated carbon felt (92), second activated carbon felt (93), first ultraviolet lamp (94) and second ultraviolet lamp (95), first activated carbon felt (92) and second activated carbon felt (93) locate both sides around casing (91) respectively, first ultraviolet lamp (94) and second ultraviolet lamp (95) locate between first activated carbon felt (92) and second activated carbon felt (93), first activated carbon felt (92) just right activated carbon filter screen (8), second activated carbon felt (93) just right the rear end air outlet (12) of shell (1).
9. The home kitchen air purifier of claim 8, wherein: and a shading air outlet cover (15) is additionally arranged at the rear end air outlet (12).
10. The home kitchen air purifier of claim 8, wherein: the first activated carbon felt (92) and the second activated carbon felt (93) are both fixedly loaded with nano TiO2The dominant wavelength of the first ultraviolet lamp (94) is 254nm, and the dominant wavelength of the second ultraviolet lamp (95) is 365 nm.
11. A home kitchen air cleaner as claimed in claim 1, wherein: rotary filter screen (4) locate mechanical filter (3) and deep deoiling net (6) between be equipped with in the filtration passageway and be used for the drive rotary filter screen (4) pivoted motor (19), first effect filter screen (2), mechanical filter (3), rotary filter screen (4) and deep deoiling net (6) locate in proper order from forward to backward upper portion in shell (1), just first effect filter screen (2) are just right front end air intake (11) the below top-down of deep deoiling net (6) has set gradually oleophobic hydrophobic filter screen (7), active carbon filter screen (8), photocatalyst device (9) and fan (5), the air outlet orientation of fan (5) the rear end air outlet.
12. A home kitchen air cleaner according to claim 11, wherein: the inside of shell (1) is equipped with housing (18), deep deoiling net (6), oleophobic hydrophobic filter screen (7), active carbon filter screen (8), photocatalyst device (9) locate housing (18) in, the bottom of housing (18) have with the through-hole that the air intake of fan (5) is linked together.
13. A home kitchen air cleaner according to claim 11, wherein: an oil collecting box (10) is arranged inside the shell (1), and the oil collecting box (10) is located below the rotary filter screen (4).
14. A home kitchen air cleaner according to claim 11, wherein: the method is characterized in that: photocatalyst unit (9) include casing (91), first activated carbon felt (92), second activated carbon felt (93), first ultraviolet lamp (94) and second ultraviolet lamp (95), first activated carbon felt (92) and second activated carbon felt (93) locate the upper and lower both sides of casing (91) respectively, first ultraviolet lamp (94) and second ultraviolet lamp (95) locate between first activated carbon felt (92) and second activated carbon felt (93), first activated carbon felt (92) just right activated carbon filter screen (8), second activated carbon felt (93) just right the air intake of fan (5).
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| CN105698297A (en) * | 2016-03-23 | 2016-06-22 | 凯天环保科技股份有限公司 | Combined oil mist purifying unit of air conditioner |
| CN106839028B (en) * | 2017-01-03 | 2019-05-28 | 南京师范大学 | A kind of kitchen fume multistage purification device |
| CN107289527A (en) * | 2017-07-11 | 2017-10-24 | 宁波智正伟盈信息科技有限公司 | It is a kind of to be used for indoor air cleaning unit |
| CN107327957A (en) * | 2017-07-11 | 2017-11-07 | 宁波智正伟盈信息科技有限公司 | It is a kind of to be classified the air cleaning unit of processing |
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| CN110575084B (en) * | 2019-09-24 | 2021-03-16 | 惠州高比烘焙设备有限公司 | Baking method of oven |
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Denomination of invention: Home kitchen air purifier Effective date of registration: 20230721 Granted publication date: 20180717 Pledgee: Bank of China Limited Ningbo Hangzhou Bay New Area sub branch Pledgor: NINGBO FOTILE KITCHEN WARE Co.,Ltd. Registration number: Y2023980049309 |
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