CN107289526A - Air purifier and air purification method - Google Patents
Air purifier and air purification method Download PDFInfo
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- CN107289526A CN107289526A CN201710530913.8A CN201710530913A CN107289526A CN 107289526 A CN107289526 A CN 107289526A CN 201710530913 A CN201710530913 A CN 201710530913A CN 107289526 A CN107289526 A CN 107289526A
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- air
- photocatalyst
- helical blade
- convolution
- led
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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
- 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
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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
-
- 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
- F24F8/167—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
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
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- 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)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention provides a kind of air purifier and air purification method, it is related to technical field of air purification.The air purifier includes convolution air channel and multiband LED/light source, the air inlet and air outlet in convolution air channel are respectively arranged with screen pack, convolution is provided with helical blade in air channel, the surface spraying of screen pack and helical blade has photocatalyst, the centre that is axially disposed within helical blade of the multiband LED/light source through helical blade edge convolution air channel.Relative to prior art, the air purifier that the present invention is provided in convolution air channel by setting surface to scribble the helical blade of photocatalyst, area and the time of air and photocatalyst contact are added, the effect of air cleaning is effectively improved, and the service life of multiband LED/light source is longer.In addition, the air purification method of the invention provided can decompose organic matter without producing secondary pollution, and harmful bacteria can be killed by adding ultraviolet light in multiband LED/light source, disease carrying germ propagation is reduced.
Description
Technical field
The present invention relates to technical field of air purification, in particular to a kind of air purifier and air purification method.
Background technology
Under the general worsening overall background of environment, (especially winter in the case that particularly air flow is not strong indoors
During heating and summer air-conditioning), influence and endanger even more serious that atmosphere pollution dirt particle and its smell and bacterium are brought；Separately
Outside, it is indoor also have a large amount of synthesis chemical materials be used for formaldehyde, nitrogen oxides, benzene (VOC one kind) that indoor and outdoor decoration is produced,
The nuisances such as TVOC (including many odor molecules).
Air purifier species in the market is various, there is certain air-cleaning function, is generally circulated using blower fan
Air, while being purified using the filtration of filter cotton and the suction-operated of activated carbon to air.Although these devices have
Certain adsorption treatment particulate matter effect, but because it is often placed in house corner, it is necessary to whole by being carried out to room air
Body systemic circulation and progressively filtering can just be played a part of purifying air.For this existing air purifier, it is even more then
Just progressively room air is purified after air pollutants are fully spread, it produces formaldehyde, nitrogen oxides, benzene to finishing
The poor filtration effect of the nuisances such as (VOC one kind), TVOC (including many odor molecules), time-consuming, it is difficult to effectively eliminate or
The air pollutants of finishing generation and the harm of the aerial harmful bacteria of floating are reduced, and the pollutant filtered out is retained
On screen pack, if the cleaning for carrying out screen pack not in time is changed, it is easy to cause secondary pollution.
The content of the invention
It is an object of the invention to provide a kind of air purifier and air purification method, it can be effectively improved above-mentioned ask
Topic.
What embodiments of the invention were realized in：
In a first aspect, the embodiments of the invention provide a kind of air purifier, it includes convolution air channel and multiband LED light
Source, the air inlet and air outlet in the convolution air channel, which are respectively arranged with screen pack, the convolution air channel, is provided with helical blade,
The surface spraying of the screen pack and the helical blade has photocatalyst, and the multiband LED/light source passes through the helical blade
Along the centre for being axially disposed within the helical blade in the convolution air channel, the multiband LED/light source and the helical blade
Relative position fix.
In preferred embodiments of the present invention, the air purifier also includes fan, and the fan is arranged at the mistake
Side of the filter screen away from the convolution air channel.
In preferred embodiments of the present invention, the multiband LED/light source includes two fixed plates and light tube group, the lamp
The two ends of pipe group are fixedly connected with described two fixed plates respectively, and the light tube group is fixed on the spiral shell through the helical blade
The centre of vane piece.
In preferred embodiments of the present invention, it is provided with the helical blade and the LED lamp tube number in the light tube group
Measure each LED lamp tube in corresponding mounting hole, the light tube group pass through it is every in corresponding mounting hole, the light tube group
The two ends of individual LED lamp tube are fixedly connected with described two fixed plates respectively.
In preferred embodiments of the present invention, the light tube group excites pipe including at least one photocatalyst and at least one is killed
Malicious sterile tube.
In preferred embodiments of the present invention, the photocatalyst is TiO2, the light tube group exists including two wavelength bands
280~380nm TiO2Photocatalyst swashs LED.
In preferred embodiments of the present invention, the light tube group includes LED exterminating bacterium of the peak wavelength in 254nm
Pipe.
In preferred embodiments of the present invention, the light tube group includes LED exterminating bacterium of the peak wavelength in 185nm
Pipe.
In preferred embodiments of the present invention, the inwall in the convolution air channel scribbles photocatalyst, and the helical blade is by energy
The material for enough launching light through the multiband LED/light source is made.
Second aspect, the embodiment of the present invention additionally provides a kind of air purification method, net applied to air as described above
Change device, the air purification method includes：The irradiation of multiband LED/light source is arranged on the photocatalyst on screen pack, inspires electronics
And produce electron-hole pair；The electron-hole pair moves to rapidly the surface and active material surface of the photocatalyst material
The oxygen and water of absorption, produce oxidability extremely strong free hydroxy and active oxygen；The free hydroxy and active oxygen and warp
Oxidation reaction occurs for the organic matter for crossing the photocatalyst, the organic matter is decomposed into carbon dioxide and water.
Air purifier and air purification method provided in an embodiment of the present invention, by convolution air channel air inlet and go out
Air port sets the screen pack for being coated with photocatalyst respectively, and the air by air channel of circling round has been carried out front and rear to filter twice；Returning
Whirlwind sets helical blade in road, makes to form helical channel structure in convolution air channel, and the air into convolution air channel can be in convolution
Convolution wind is formed in air channel, air is fully contacted with the helical blade surface for scribbling photocatalyst；Multiband LED/light source is passed through
Helical blade and along the centre for being axially disposed within helical blade in convolution air channel, can make the medial surface and helical blade of screen pack
Each surface can be irradiated to by multiband LED/light source, play a part of maximizing activation photocatalyst.With prior art phase
Than the air purifier and air purification method that the present invention is provided make air include carefully by spraying photocatalyst on screen pack
Harmful organic substance including bacterium virus is broken down into harmless water and carbon dioxide when by screen pack, without remaining in
On filter screen, secondary pollution is eliminated；And the helical blade design for scribbling photocatalyst also considerably increases connecing for photocatalyst and air
Contacting surface is accumulated and the time, the harmful substance in air is fully reacted, is effectively improved the effect and efficiency of air cleaning；In addition,
The resonance light source commonly used in photochemical reaction is compared using multiband LED/light source, its energy consumption is low, service life is longer, and air
The overall structure of clarifier is more simplified, and is applicable to numerous places.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
The structural representation for the air purifier that Fig. 1 provides for first embodiment of the invention；
The structural representation for the multiband LED/light source that Fig. 2 provides for first embodiment of the invention；
The structural representation for helical blade and the light tube group assembling that Fig. 3 provides for first embodiment of the invention；
The FB(flow block) for the air purification method that Fig. 4 provides for second embodiment of the invention.
Icon：100- convolutions air channel；200- multiband LED/light sources；220- light tube groups；240- fixed plates；300- screen packs；
400- helical blades；420- mounting holes；500- fans；1000- air purifiers.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, term " in ", " on ", " under ", "left", "right", " interior ", " outer "
Orientation or position relationship Deng instruction are that, based on orientation shown in the drawings or position relationship, or the invention product is used when using
The orientation or position relationship often put, are for only for ease of the description present invention and simplify description, rather than indicate or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the present invention
Limitation.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying phase
To importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
It is to be slightly tilted.As " level " only refers to that its direction, with respect to more level for " vertical ", is not the expression structure
Must be fully horizontal, but can be slightly tilted.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
In addition, the term such as " input ", " output ", " feedback ", " formation " is understood as describing a kind of optics, electricity change
Or the processing of optics, electricity.As " formation " only refers to optical signal or electric signal by there occurs after the element, instrument or device
Change optically or electrically so that the optical signal or the electric signal are processed, and then obtain implementation technical scheme
Or the signal required for solution technical problem.
In the specific embodiment accompanying drawing of the present invention, for each element in more preferable, clearer description air purifier
The annexation of each several part in operation principle, performance described device, the relative position simply substantially distinguished between each element is closed
System, can not be constituted to the optical path direction in element or structure, the order of connection and Each part size, size, the limit of shape
It is fixed.
First embodiment
Fig. 1 is refer to, a kind of air purifier 1000 is present embodiments provided, it includes convolution air channel 100 and multiband
LED/light source 200.The convolution air channel 100 is to distinguish on hollow tubular passage, the air inlet at its two ends and the position of air outlet
It is provided with screen pack 300, the screen pack 300 and is coated with photocatalyst.The centre in the convolution air channel 100 is provided with helical-blade
Piece 400, the surface of the helical blade 400 is equally coated with photocatalyst.The multiband LED/light source 200 passes through the spiral
Blade 400, and the direction of the center line axis along the convolution air channel 100 is arranged on the centre of the helical blade 400, it is described many
The relative position of wave band LED/light source 200 and the helical blade 400 is fixed.
In the present embodiment, the air purifier 1000 also includes fan 500, and the fan 500 is arranged at the filtering
Side of the net 300 away from the convolution air channel 100.Because the air inlet and air outlet in air channel 100 of circling round are provided with screen pack
300, in order to reach preferably air circulation effect, in the outside of air inlet filter screen 300 and the outside of air outlet screen pack 300
Fan 500 is provided with simultaneously, the direction of rotation of this two groups of fans 500 can be identical, to accelerate air in air purifier
Circulation in 1000.
In the present embodiment, the helical blade 400 and the convolution air channel 100 are coaxial, the screen pack by air channel 100 of circling round
One end of 300 inner sides starts, and is extended spirally along the central axis in the madial wall wraparound whirlwind road 100 in convolution air channel 100, until returning
The other end in whirlwind road 100, forms helical channel structure, the multiband LED/light source 200 then edge in convolution air channel 100
The central axial direction in convolution air channel 100 is fixed on the centre of helical blade 400.It is understood that in the operating condition, it is empty
The fan 500 that gas is set on the outside of the air inlet in air channel 100 of circling round enters, and the screen pack 300 by air inlet carries out first
Secondary filtering, is entered back into convolution air channel 100, and the helical duct constituted along helical blade 400 is formed back in convolution air channel 100
Whirlwind carries out filtering for second simultaneously, eventually passes the screen pack 300 at the convolution air outlet of air channel 100 and carries out third time filtering,
Discharged by the fan 500 in the outside of air outlet screen pack 300.
It refer in Fig. 2, the present embodiment, the multiband LED/light source 200 includes two fixed plates 240 and light tube group
220, the two ends of the light tube group 220 are fixedly connected with described two fixed plates 240 respectively, and the light tube group 220 is described in
Helical blade 400 is fixed on the centre of the helical blade 400, and the fixed plate 240 is used to fix in the light tube group 220
Relative position between multiple LED lamp tubes.
In the present embodiment, the light tube group 220 can by many different-wavebands LED lamp tube group 220 into.The present embodiment is adopted
TiO2Photocatalyst is anatase structured, and its energy is 3.2eV away from (band gap), and corresponding lambda1-wavelength is 380nm, when making
It is more than 3.2eV light irradiation TiO with photon energy2During photocatalyst material, the valence-band electrons of material are due to absorbing photon energy quilt
Excite and transit to conduction band, valence band location formation hole originally, it is photo-generated carrier, photo-generated carrier to produce electron-hole pair
The rapid surface for moving to material, the oxygen and moisture of active material adsorption produce the free hydrogen with extremely strong oxidability
Epoxide and active oxygen, it can occur redox reaction with organic matter, decompose the various organic compounds with unstable chemical bond
Thing and part inorganic matter, and the cell membrane of bacterium and the protein carrier of solidification virus can be destroyed, make organic matter, bacterium, virus
Carbon dioxide and water are decomposed into Deng thorough, thus with excellent air purification effect.
Corresponding to TiO2Photocatalyst, when designing light tube group 220, the light tube group 220 is needed comprising at least one transmitting
Photon energy is more than 3.2eV TiO2Photocatalyst excites pipe to be used to activate photocatalyst.In the present embodiment, in order to ensure light tube group
The light intensity and scope of the ultraviolet lights of 220 transmittings can cover in clarifier each scribble the position of photocatalyst, light tube group 220
The interior TiO for being provided with two wavelength bands being distributed by axial symmetry of the central axis in air channel 100 of circling round in 280~380nm2Light
Catalyst swashs LED.
Inventor has found in research and experiment, excites photocatalyst to carry out photochemical effect when using ultraviolet leds fluorescent tube
When, the free hydroxy and active oxygen of generation are excited to the oxidation Decomposition of the microorganisms such as bacterium, its reality different from conventional light
Killing ability to microorganism is stronger, the reason is that ultraviolet light is in the case where no photocatalyst is acted on, it may have very strong
Sterilization capability.The process of ultraviolet light sterilization belongs to biochemical oxidation reaction, its mechanism of action and the photoproduction in photocatalyst reaction
Active group (free hydroxy, active oxygen etc.) is different to the destruction principle of bacterium, and ultraviolet light can be done directly on nucleus, its
Protein chain can be cut off in high-energy, makes cell directly dead；Or required enzyme in cellular activity is lost activity；Or with it is thin
The inhereditary material of bacterium or virus is had an effect, and is destroyed bacterium, the metabolism of virus and reproductive process.
Thus inventor is summed up, and air cleaning is carried out in the photoproduction active group produced using ultraviolet excitation photocatalyst
While, also the microorganisms such as bacterium can directly be killed by same ultraviolet source simultaneously, greatly improve air cleaning
Effect and the efficiency that utilizes of light source.
After further research, inventor learns, the ultraviolet acted on biologically is main by three different-waveband structures
Into wherein the biological effect of the ultraviolet of 225~285nm wave bands is most notable, the scission of link ability to microorganism is most strong, i.e. sterilizing effect
It is really best.
Therefore, when designing light tube group 220, the light tube group 220 can set at least one ultraviolet exterminating bacterium pipe.
In the present embodiment, the light tube group 220 has selected a peak wavelength in 254nm LED exterminating bacterium pipes, and a peak value
LED exterminating bacterium pipe of the wavelength in 185nm.The TiO used due to the present embodiment2Photocatalyst only needs the light of below 380nm wavelength
Generation photocatalysis effect can be activated, above-mentioned 254nm and 185nm two LED exterminating bacteriums Guan Junke are same what is directly sterilized
When activate photocatalyst, serve the effect of Double-sterilization, and use low pressure mercury lamp to enter as ultraviolet source relative to traditional
The mode of row biological antibiotic, the present embodiment uses LED lamp tube pollution-free and the life-span is longer as ultraviolet source.
In the present embodiment, two TiO2Photocatalyst swashs LED with two LED exterminating bacteriums Guan Jun with air channel of circling round
100 central axis is set in rotationally symmetrical, and the two ends of this four LED lamp tubes are fixed by two fixed plates 240 respectively.This implementation
In example, the shape of two fixed plates 240 is circular slab, and the line of centres of two fixed plates 240 is just in convolution air channel 100
On central axis, the light for enabling light tube group 220 to send is covered on each position in convolution air channel 100.
It refer in Fig. 3, the present embodiment, be provided with the helical blade 400 and the LED in the light tube group 220
The corresponding mounting hole 420 of pipe quantity, the light tube group 220 when mounted, first passes through each LED lamp tube on helical blade 400
Corresponding mounting hole 420, when the two ends of all LED lamp tubes are stretched out from the both sides of mounting hole 420, by the light tube group
The two ends of each LED lamp tube in 220 are fixedly connected with described two fixed plates 240 respectively.It is understood that LED lamp tube
External diameter it is roughly the same with the aperture of the upper installing hole 420 of helical blade 400, enable LED lamp tube by coordinate mounting hole 420 with
The relative position of helical blade 400 is fixed, and multiple LED lamp tubes are solid all with one positioned at one end of the same side in light tube group 220
Fixed board 240 is fixed, and both sides using two fixed plates 240, make fixed plate 240, light tube group 220 and helical blade 400 altogether
Relative position is fixed, and overall structure is relatively reliable.Particularly, damping glue can be set at mounting hole 420 to consolidate light tube group 220
It is fixed.
In the present embodiment, the screen pack 300 is nanofiltration net 300, and it includes five layers of filtering, and it is near fan
The 500 three first layers material larger to volume in the air such as dust, acarid carries out preliminary filtering, near helical blade
The 4th layer of 400 and layer 5 are coated with TiO2Photocatalyst carries out air cleaning.It is preferred that, except helical blade 400 and screen pack
Scribbled on 300 outside photocatalyst, the inwall in convolution air channel 100 can also spray photocatalyst, further to increase air and photocatalyst
Contact area, strengthen air cleaning effect.
In the present embodiment, in order that the light that light tube group 220 is sent can be irradiated to convolution air channel 100 in each scribble light touch
The position of matchmaker, in addition to the diffusing reflection of the convolution internal structure of air channel 100 in itself, the helical blade 400 and fixed plate 240 are all
The material that can use can launch light through multiband LED/light source 200 makes, and so ensure that and incides screen pack 300
The 4th, layer 5 and helical blade 400, the light intensity of the convolution inwall of air channel 100 everywhere can effectively activate photocatalyst
Reaction.
Table 1 is refer to, the experimental result that removing and harmful gas is tested is gone for the air purifier 1000 that the present embodiment is provided.This
Experiment is concretely comprised the following steps：After an indoor 0.5h that 5.0mL formaldehyde and 6.0mL ammonia solution volatilize naturally, this implementation is opened
Air purifier 1000 in example, gathers air sample at newly finishing building, is designated as initial mass concentration；In air cleaning after 2h
Air sample is gathered at the air outlet of device 1000,2h mass concentrations are designated as；Formaldehyde, the concentration of ammonia in detection air sample, meter
Calculate the PARA FORMALDEHYDE PRILLS(91,95) of this air purifier 1000, the removal efficiency of ammonia.Wherein, removal efficiency=[(initial mass concentration -2h quality
Concentration)/initial mass concentration] × 100%.
Table 1
Table 2 is refer to, the experimental result of the disinfection of air purifier 1000 experiment provided for the present embodiment.This experiment
Concretely comprise the following steps：In animal farm, the air purifier 1000 in the present embodiment is tried out, the air inlet of air purifier 1000 is determined
The air-borne bacteria sum at place, is designated as initial concentration；Air-borne bacteria sum is determined at air outlet after 2h, 2h concentration is designated as；
Benzene, the concentration of TOVC in detection air sample, calculate the removal efficiency of air purifier 1000.It is real
Testing result is：It is 5700m at total number of bacteria import-3, exit is 520m-3, 2h clearances are 90.9%；Benzene mass concentration is entered
It is 0.4115mg.m at mouthful-3, exit is 0.0030mg.m-3, 2h clearances are 99.3%；TOVC enters
Mass concentration is 0.529mg.m at mouthful-3, exit is 0.0713mg.m-3, 2h clearances are 86.5%.
Table 2
The air purifier 1000 that the present embodiment is provided, while make use of photocatalyst and ultraviolet both physical agents to exist
Specificity, uniformity, complementarity and synergistic effect in exterminating bacterium, every demand for air cleaning are designed, its
Good purification, purification efficiency are high, effect lasting stability, and will not produce secondary pollution, and structure is simplified, maintenance cost is low and behaviour
Make easy, be widely portable to the air cleaning in various contaminated places.
Second embodiment
Fig. 4 is refer to, a kind of air purification method is present embodiments provided, applied to the air in above-mentioned first embodiment
Clarifier.The air purification method includes：
Step S600：The irradiation of multiband LED/light source is arranged on the photocatalyst on screen pack, inspires electronics and produces electricity
Son-hole pair；
Step S610：The electron-hole pair moves to rapidly the surface and active material surface of the photocatalyst material
The oxygen and water of absorption, produce oxidability extremely strong free hydroxy and active oxygen；
Step S620：The free hydroxy and active oxygen and the organic matter generation oxidation reaction by the photocatalyst,
The organic matter is set to be decomposed into carbon dioxide and water.
The air purification method that the present embodiment is provided, the Strong oxdiative active group such as the free hydroxy generated through photocatalyst reaction
Organic pollution can thoroughly be decomposed into harmless water and carbon dioxide by group, it is to avoid secondary pollution, also greatly reduce sky
The maintenance cost of gas purifier, is truly realized environmentally friendly, sustainable air cleaning.
In summary, air purifier and air purification method provided in an embodiment of the present invention, by convolution air channel
Air inlet and air outlet set the screen pack for being coated with photocatalyst respectively, the air by air channel of circling round has been carried out it is front and rear twice
Filtering；Helical blade is set in convolution air channel, makes to form helical channel structure in convolution air channel, into the air in convolution air channel
Convolution wind can be formed in convolution air channel, air is fully contacted with the helical blade surface for scribbling photocatalyst；By multiband LED
Light source can make the medial surface and spiral shell of screen pack through helical blade and along the centre for being axially disposed within helical blade in convolution air channel
Each surface of vane piece can be irradiated to by multiband LED/light source, play a part of maximizing activation photocatalyst.With it is existing
Technology is compared, and the air purifier and air purification method that the present invention is provided are made in air by spraying photocatalyst on screen pack
Harmless water and carbon dioxide is broken down into when by screen pack including the harmful organic substance including bacterial virus, without residual
Stay on screen pack, eliminate secondary pollution；And the helical blade design for scribbling photocatalyst also considerably increases photocatalyst and sky
The contact area of gas and time, the harmful substance in air is fully reacted, effectively improve the effect and efficiency of air cleaning；
In addition, comparing the resonance light source commonly used in photochemical reaction using multiband LED/light source, its energy consumption is low, service life is longer, and
The overall structure of air purifier is more simplified, and is applicable to numerous places.It the foregoing is only the preferred embodiments of the present invention
, it is not intended to limit the invention, for those skilled in the art, the present invention can have various modifications and variations.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (10)
1. a kind of air purifier, it is characterised in that including convolution air channel and multiband LED/light source,
The air inlet and air outlet in the convolution air channel are respectively arranged with screen pack, the convolution air channel and are provided with helical-blade
The surface spraying of piece, the screen pack and the helical blade has photocatalyst,
The be axially disposed within helical blade of the multiband LED/light source through the helical blade along the convolution air channel
Centre, the relative position of the multiband LED/light source and the helical blade is fixed.
2. air purifier according to claim 1, it is characterised in that the air purifier also includes fan, described
Fan is arranged at side of the screen pack away from the convolution air channel.
3. air purifier according to claim 1, it is characterised in that the multiband LED/light source includes two fixations
Plate and light tube group, the two ends of the light tube group are fixedly connected with described two fixed plates respectively, and the light tube group passes through the spiral shell
Vane piece is fixed on the centre of the helical blade.
4. air purifier according to claim 3, it is characterised in that be provided with the helical blade and the fluorescent tube
Each LED lamp tube in the corresponding mounting hole of LED lamp tube quantity in group, the light tube group passes through corresponding mounting hole,
The two ends of each LED lamp tube in the light tube group are fixedly connected with described two fixed plates respectively.
5. air purifier according to claim 3, it is characterised in that the light tube group includes at least one photocatalyst and swashed
Hair pipe and at least one exterminating bacterium pipe.
6. air purifier according to claim 5, it is characterised in that the photocatalyst is TiO2, the light tube group includes
TiO of two wavelength bands in 280~380nm2Photocatalyst swashs LED.
7. air purifier according to claim 5, it is characterised in that the light tube group exists including a peak wavelength
254nm LED exterminating bacterium pipes.
8. air purifier according to claim 5, it is characterised in that the light tube group exists including a peak wavelength
185nm LED exterminating bacterium pipes.
9. air purifier according to claim 1, it is characterised in that the inwall in the convolution air channel scribbles photocatalyst,
The helical blade is made up of the material that can launch light through the multiband LED/light source.
10. a kind of air purification method, it is characterised in that applied to the air cleaning as described in any one of claim 1 to 9
Device, the air purification method includes：
The irradiation of multiband LED/light source is arranged on the photocatalyst on screen pack, inspires electronics and produces electron-hole pair；
The electron-hole pair moves to rapidly the surface of the photocatalyst material and the oxygen and water of active material adsorption,
Produce oxidability extremely strong free hydroxy and active oxygen；
The free hydroxy and active oxygen make the organic matter point with occurring oxidation reaction by the organic matter of the photocatalyst
Solve as carbon dioxide and water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710530913.8A CN107289526A (en) | 2017-06-30 | 2017-06-30 | Air purifier and air purification method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710530913.8A CN107289526A (en) | 2017-06-30 | 2017-06-30 | Air purifier and air purification method |
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| CN107289526A true CN107289526A (en) | 2017-10-24 |
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| CN201710530913.8A Pending CN107289526A (en) | 2017-06-30 | 2017-06-30 | Air purifier and air purification method |
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| CN (1) | CN107289526A (en) |
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| CN108458415A (en) * | 2018-02-02 | 2018-08-28 | 晖保智能科技（上海）有限公司 | A kind of ultraviolet light and TiO2Photocatalyst is combined the air cleaning unit and its purification method of sterilizing |
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| CN111589300A (en) * | 2020-05-22 | 2020-08-28 | 上海电力大学 | Device for removing pollutants through self-production electro-optic catalysis based on waste gas driving |
| EP3951274A1 (en) * | 2020-08-06 | 2022-02-09 | Nanoproject S.r.l. | Air purifying apparatus |
| CN112408159A (en) * | 2020-09-29 | 2021-02-26 | 浙江鼎信空调科技(集团)有限公司 | Negative pressure type elevator with disinfection function |
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Application publication date: 20171024 |