CN108662657A - A kind of air purification medium unit, air cleaning unit and air purification method - Google Patents
A kind of air purification medium unit, air cleaning unit and air purification method Download PDFInfo
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- CN108662657A CN108662657A CN201810219079.5A CN201810219079A CN108662657A CN 108662657 A CN108662657 A CN 108662657A CN 201810219079 A CN201810219079 A CN 201810219079A CN 108662657 A CN108662657 A CN 108662657A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
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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
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/167—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using catalytic reactions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
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Abstract
The present invention relates to a kind of air purification medium unit, air cleaning unit and air purification methods.The air purification medium unit includes the filter element of upstream, the absorption-desorption unit in middle reaches and the photocatalysis unit in downstream.A kind of air cleaning unit is devised using air purification medium unit simultaneously, forms a set of air purification method.The present invention is directed to the characteristics of photocatalysis and absorption method, and absorption method is combined with photocatalysis so that activated carbon or activated carbon fiber adsorption/desorption-TiO2 photocatalysis technologies become a kind of high efficiency, the air purifying process of long-life.On the one hand, after activated carbon or activated carbon fiber are desorbed so that activated carbon or activated carbon fiber are able to in-situ regeneration, reduce the original period for replacing filter core；On the other hand, the desorption of activated carbon or activated carbon fiber provides the reaction environment of high concentration for the photocatalysis of TiO2, accelerates reaction rate.
Description
Technical field
The present invention relates to air purification field, more particularly to a kind of air purification medium unit, air cleaning unit and
Air purification method.
Background technology
Currently, most of air purifier mainly applies adsorbing medium adsorption technology in the market.Although absorption method is simple
It is single easily to promote, but can only temporarily adsorb a small amount of pollutant, since adsorbing medium is there are adsorption saturation state, the pollution adsorbed
Object is possible to separate out, reenters in air, causes secondary pollution.And adsorbing medium needs to regularly replace, thus it is real
Border is very inconvenient when using.
Invention content
Ventilation, filtering, absorption, ultraviolet-sterilization, photocatalysis are mutually tied the purpose of the present invention is to propose to a kind of, it can be efficient
Purify air purification medium unit, air cleaning unit and the air purification method of air.
To achieve the above object, the present invention provides the filter element of a kind of air purification medium unit, including upstream,
Absorption-the desorption unit in middle reaches and the photocatalysis unit in downstream；The filter element on the flow direction of air successively
Including low efficient filter screen, HEPA high efficiency particulate airs and the filtering of electrostatic electret net；Absorption-the desorption unit includes at least two layers
Absorptive media layers, and heating wire is equipped between two layers of absorptive media layers；The photocatalysis unit further includes and air
At least two perpendicular ultraviolet lamps of flow direction are equipped with photocatalyst net between described two ultraviolet lamps.
Preferably, the material of the absorptive media layers is activated carbon or activated carbon fiber.
Preferably, the material of the absorptive media layers is activated carbon or activated carbon fiber.
Preferably, growth has TiO2 nanostructured layers on the photocatalyst net, and is provided with micron order on the photocatalyst net
Hole.
Preferably, the breast of the TiO2 nanostructured layers being grown on photocatalyst net at least partially class lotus leaf surface
Prominent shape structure.
Further, it is preferable that the photocatalyst net is in continuous fold-line-shaped structure.
Another object of the present invention is to provide a kind of air cleaning unit, including the air purification medium unit,
The air cleaning unit further include the admission line being connected with the filter element and with it is described and photocatalysis unit
The desorption pipeline and outlet pipe being connected, the outlet pipe are connected with indoor environment.
Preferably, the thickness of the absorptive media layers in the absorption-desorption unit is 10~20mm.
Preferably, the desorption pipeline, be respectively arranged with high-power blower and low-power fan in outlet pipe.
Another object of the present invention is to provide a kind of use of air cleaning unit and processing method, it is characterised in that：
Described method includes following steps：
A, the control valve in admission line and outlet pipe is opened, and opens the low-power fan in outlet pipe,
The control valve for closing desorption pipeline enters the air purification by admission line from outdoor or indoor suction source air
Device；
B, low efficient filter screen, HEPA high efficiency particulate airs, electrostatic is passed sequentially through into the air inside air cleaning unit to stay
Pole filter screen, absorptive media layers, photocatalyst net and ultraviolet lamp；
C, after the air cleaning unit uses 3~6 months time, desorption processing is carried out to absorptive media layers.
Preferably, the desorption processing further includes following steps：
(1), admission line and outlet pipe are closed, and is powered to heating wire, and it is 80 to maintain the temperature of absorptive media layers
~110 DEG C；
(2), after 30~60min, admission line is opened, while starting the high-power blower in desorption pipeline, step will be passed through
Suddenly treated, and air is discharged to outdoor along desorption pipeline.
Based on the above-mentioned technical proposal, it is an advantage of the invention that：
The present invention is directed to the characteristics of photocatalysis and absorption method, absorption method is combined with photocatalysis so that activated carbon or work
Property carbon fiber adsorption desorption-TiO2 photocatalysis technologies become a kind of high efficiency, the air purifying process of long-life.On the one hand,
After activated carbon or activated carbon fiber desorption so that activated carbon or activated carbon fiber are able to in-situ regeneration, reduce original replace and filter
The period of core；On the other hand, the desorption of activated carbon or activated carbon fiber provides the reaction of high concentration for the photocatalysis of TiO2
Environment accelerates reaction rate.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is air purification medium unit and schematic device；
Fig. 2 is photocatalysis unit detail drawing；
Wherein：
1~admission line；2~low efficient filter screen；3~HEPA high efficiency particulate airs；4~the filtering of electrostatic electret net；5~electricity
Heated filament；6~absorptive media layers；7~ultraviolet lamp；8~photocatalyst net；9~desorption pipeline；10~outlet pipe；100~big work(
Rate wind turbine；200~low-power fan；A~filter element；B~absorption-desorption unit；C~photocatalysis unit.
Specific implementation mode
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Embodiment 1
The present invention provides a kind of air purification medium unit, air cleaning unit and air purification methods.In this implementation
In the air purification medium unit of example, include the filter element A of upstream, the absorption-desorption unit B in middle reaches and downstream
Photocatalysis unit C, as shown in Figure 1.
Preferably, the filter element A includes low efficient filter screen 2, the efficient mistakes of HEPA successively on the flow direction of air
Strainer 3 and the filtering of electrostatic electret net 4.The low efficient filter screen 2 be called do primary efficient filter screen, thick dirt filter, prefilter,
New wind filter etc., filtrate uses good polyethylene terephthalate PET (non-woven fabrics slightly imitates filter cotton)；Outline border generally use is anti-
Damp water resistant magma wood-fibred cardboard, light weight facilitate installation, smooth appearance beautiful；Internal filter material is compressed using combination inside casing
Design or adhesive technology, it is ensured that the leakproofness of filter screen prevents from revealing；Internal metalwork is prevented through plastic-spraying or zinc-plated processing
Metalwork gets rusty；Non-woven fabrics filtrate outlet air surface is handled by finishing, is prevented non-woven fibre fracture from dispersing and is caused secondary pollution；Gold
Belong to outline border product filtrate easy detachable, capable of washing, the repeatable utilization of outline border；And the filtering surface of filter screen is big, initial resistance is low,
Air quantity is big, dust containing capacity is high, while moisture resistance, up to 100%, heatproof is up to 80 DEG C.Air can be saved using low efficient filter screen
The operating cost of purification medium unit mitigates the workload of follow-up high efficiency particulate air, effectively extends making for high efficiency particulate air
Use the service life.The HEPA high efficiency particulate airs 3 divide PP filter paper, glass fibre, compound PP PET filter paper, melt-blown terylene non-woven fabric and
Five kinds of materials of glass fibre are meltblown, its main feature is that windage is small, dust containing capacity is big, and filtering accuracy is high, and can process as needed
At various sizes and shape；The net efficiency of filter of HEPA high efficiency particulate airs 3 is directly proportional to its surface area, air purification medium unit
In HEPA high efficiency particulate airs 3 be in multilayer folding, expansion below product than fold when increase about 14.5 times, can effectively trap
0.3 micron or more pellet, smog, dust, bacterium etc., and being capable of high temperature resistant, corrosion-resistant and mould proof, the net effect of filter
It can be very outstanding.By in treated the air of HEPA high efficiency particulate airs 3>0.3 micron of particulate matter is removed totally substantially, but
It is<0.3 micron of particulate matter is not handled, and Electrostatic Absorption just works at this time；This media units uses electrostatic
Electret filter screen 4 can be removed as dust, smog, mist particles object, pet soft flocks, mould robe, pollen, bacterium, disease
The advantages that poison, removal rate are up to 99.97%, have resistance low, efficient, long lifespan, can simultaneously be effectively prevents subtle
Grain blocks the capillary in the adsorbing medium of subsequent processes, extends the service life of adsorbing medium.
Preferably, the absorption-desorption unit B includes at least two layers of absorptive media layers 6, and adsorbs and be situated between at described two layers
Heating wire 5 is equipped between matter layer 6.It is removed substantially totally by particulate matter in filter element A treated air, but the inside
Toxic gas and the substances such as germ there is no removing, just need the suction-operated of adsorbing medium at this time；In this air
In purification medium unit, activated carbon or activated carbon fiber may be used in adsorbing medium.
Wherein activated carbon is a kind of very tiny carbon granule, there is prodigious surface area, and is also had in carbon granule more tiny
Hole-capillary, this capillary has very strong adsorption capacity, since the surface area of carbon granule is very big, so can be miscellaneous with gas
Matter comes into full contact with；When gas pollutant encounters capillary, the powerful absorption field of force can be immediately by gas point around activated carbon hole
In sub- inlet hole, have the function that purify air.And activated carbon fiber (Activated Carbon Fiber, abbreviation ACF) is
Carbon fiber-containing through overactivation, by certain carbon fiber-containing, (such as phenolic aldehyde base fiber, PAN bases fiber, glutinous glue based fibre, asphaltic base are fine
Dimension etc.) pass through high-temperature activation, so that its surface is generated nano level aperture, increases specific surface area, to change its physicochemical characteristic；
After carbon fiber-containing high-temperature activation, fiber surface is covered with micropore (being occupied before hydrogen, oxygen atom volatilization), and aperture is one
The inner surface of these micropores is unfolded in ten a ten thousandths of hairline, and the developed area of 1g active carbon fiber felts is up to
1600m2, these micropores play the role of adsorbing smell；From physics it is found that the surface of object externally has suction, surface
Bigger adsorption capacity is bigger, and activated carbon fiber is exactly based on the effect absorption periphery molecule of this Van der Waals force and securely and micropore
Among.Compared with activated carbon, activated carbon fiber micropore size smaller and it is uniform, structure is simpler, for absorption organic gas inhale
Attached rate faster, adsorption rate higher, and be easier be desorbed.
Further, it is preferable that the photocatalysis unit C further includes and perpendicular at least two purple of air-flow direction
Outer lamp 7 is equipped with photocatalyst net 8 between described two ultraviolet lamps 7.The ultraviolet light that the ultraviolet lamp 7 radiates can destroy bacterium
The molecular structure of DNA (DNA) or RNA (ribonucleic acid) in virus, cause growth cell death and (or)
Regenerative cell is dead, achievees the effect that sterilizing；And ultraviolet germicidal effect is stronger, but to the penetration capacity of object
It is very weak, thus using when be easy to protect, it is only necessary to entire media units are closed using opaque material.Another party
Face, ultraviolet light can become light-catalysed light source；The photocatalyst of this purification medium unit can select nano TiO 2, be one
Kind n-type semiconductor has strong oxidisability, photocatalysis technology directly to use the affected oxidants of TiO2 in air, can aoxidize big
It is finally degraded to the innocuous substances such as CO2 by partial organic pollutants and inorganic pollutants, and its reaction condition is mild
(room temperature, normal pressure), activity is high, and thermal stability is good, cheap, harmless.
Nano TiO 2 structure sheaf is grown in metal mesh with micron order hole to this media units or cloth is online, and
The structure of the nano TiO 2 is the papillary structure of class lotus leaf surface, to form photocatalyst net 8, on 8 surface of the photocatalyst net
Nano-scale particle greatly increase the contact area of gas and TiO2 photocatalysts, while the higher specific surface of nano TiO 2
Product is but also its surface can be provided the catalysis reacting environment of a higher concentration, improved and urged with absorbed portion pernicious gas
Change efficiency, under the excitation of ultraviolet light, nano TiO 2 becomes a kind of active oxidant, and organic pollution is largely catalyzed to drop
Solution；The bactericidal effect of ultraviolet light is cooperateed with simultaneously so that pollutants in air is purified.
Further, it is preferable that the photocatalyst net 8 is in continuous fold-line-shaped structure.As shown in Fig. 2, this continuous fold-line-shaped
Structure equally greatly increases the contact area of gas and photocatalyst, is effectively improved photocatalytic degradation efficiency.It is preferred that
Ground, in order to obtain preferable photocatalysis effect, the folding angles of the photocatalyst net 8 should can so obtain within 60 °
Larger air contact area is conducive to enhance contaminant degradation effect.
By the catharsis of above-mentioned several units, the sky being finally purified inside air purification medium unit
Gas is transported to interior so that gathers around there are one comfortable air environment interior.
Embodiment 2
In the present embodiment, a kind of air cleaning unit is provided, as shown in Figure 1, the air cleaning unit includes described
Air purification medium unit, the air cleaning unit further include the admission line 1 that is connected with the filter element A with
And with the desorption pipeline 9 being connected with photocatalysis unit C and outlet pipe 10, the outlet pipe 10 and indoor ring
Border is connected.
Preferably, the thickness of the absorptive media layers 6 in the absorption-desorption unit B is 10~20mm.
Preferably, the desorption pipeline 9, be respectively arranged with high-power blower 100 and low-power fan in outlet pipe 10
200.Wherein, according to the size of Air purification area, the power selection of high-power blower is 50~300W, small-power wind
The power of machine is 20~100W, and the actual power of high-power blower is more than the actual power of low-power fan..
The specific work process of the air cleaning unit of the present invention is as follows：
A, the control valve in admission line 1 and outlet pipe 10 is opened, and opens the small-power in outlet pipe 10
Wind turbine 200 closes the control valve of desorption pipeline 9, by admission line 1 from described in outdoor or indoor suction source air entrance
Air cleaning unit.
B, into the air inside air purification medium unit by low efficient filter screen 2, the large particle in air is cut
It stays on low efficient filter screen 2.
C, decline from particle concentration inside the air that low efficient filter screen 2 comes out, and grain size reduces, and passes through at this time
The filtration of HEPA high efficiency particulate airs 3, in air>0.3 micron of particulate matter is substantially completely trapped.
D, by treated the air of HEPA high efficiency particulate airs 3>0.3 micron of particulate matter is removed totally, still substantially
<0.3 micron of particulate matter is not handled, and air enters the filtering of electrostatic electret net 4 at this time, utilizes what is injected in material
The suction-operated of electrostatic charge, in air<0.3 micron of particulate matter is adsorbed.So far, the particulate matter in the air of source is in the present apparatus
In removing work complete.
E, after particulate matter is removed, it is also necessary to in air pernicious gas and germ etc. handle, just need at this time
Utilize the suction-operated of absorptive media layers 6.This stratum reticulare is made of activated carbon or activated carbon fiber, in the present embodiment, setting
Two layers of this structure, to improve adsorption efficiency；Adsorption efficiency and desorption efficiency, the suction in desorption unit B are considered simultaneously
The thickness of attached dielectric layer 6 is selected in 10~20mm.In the present apparatus, Cellular Networks are made using activated carbon fiber, pollution can be improved
The contact area of object and activated carbon fiber, and then can effectively improve the adsorption efficiency of activated carbon fiber, at the same while being desorbed also can
It is enough more efficiently to absorb heat.Certainly, to those skilled in the art it can be appreciated that activated carbon can also be filled in
Between double layer of metal net or high-temperature resistant composite material net, to form absorptive media layers 6, it is applied to the present apparatus.
F, by the processing of absorptive media layers 6, most pernicious gases and germ are handled, and are not inhaled completely at this time
Attached a small amount of pernicious gas and germ enter the zone of action of photocatalyst net 8 and ultraviolet lamp 7.Photocatalyst net 8 described in the present apparatus
It makes a living and the metal mesh with micron order hole folded in continuous fold-line-shaped with nano TiO 2 or arranges net, as shown in Fig. 2,
And the papillary structure that the structure of the nano TiO 2 is class lotus leaf surface, greatly increases gas and TiO2 photocatalysts
Contact area, while the higher specific surface area of nano TiO 2 is but also its surface can provide one with absorbed portion pernicious gas
The catalysis reacting environment of a higher concentration, improves catalytic efficiency.Ultraviolet light is radiated by ultraviolet lamp 7, germ is killed, with
This simultaneously, under the excitation of ultraviolet light, pernicious gas is degraded by catalytic to the productions such as harmless carbon dioxide by nanometer TiO_2 light-catalysis
Object.
G, by above-mentioned processing, outlet pipe 10 is led into interior, the air come out from outlet pipe 10 is very clean
Only.
H, after entire air cleaning unit uses 3~6 months time, adsorbing medium can be closer to saturation state, this
Sample just needs to carry out desorption processing to adsorbing medium.When work is desorbed, admission line 1 and outlet pipe 10 are first closed, gives electric heating
Silk 5 is powered, and passes through the temperature sensor (not shown) on absorptive media layers 6 at this time so that on absorptive media layers 6
Temperature maintain 100 DEG C or so；After this temperature is maintained 30~60min, admission line 1 is opened, while being desorbed in pipeline
High-power blower 100 brings into operation, and outdoor is discharged along desorption pipeline 9 in these air with larger air quantity；Repeat above-mentioned desorption
Process 2 times, to ensure that absorptive media layers 6 are desorbed completely.
Embodiment 3
The present invention also provides a kind of use of air cleaning unit and processing methods；In conjunction with shown in Fig. 1, in this implementation
In example, it is as follows：
A, the control valve in admission line 1 and outlet pipe 10 is opened, and opens the small-power in outlet pipe 10
Wind turbine 200 closes the control valve of desorption pipeline 9, by admission line 1 from described in outdoor or indoor suction source air entrance
Air cleaning unit.
Wherein, for superstructure facility, source air can be indoor or outdoors air；For small space or people's ratio
Less place, source air can be room airs, constantly be carried out at cycle to room air by air cleaning unit
Reason so that the pollutant concentration inside entire place is maintained at a very low level.
But for hypogee facility, because of space relative closure, needs to be aerated whole building facility and change
Gas, so source air can only be outdoor air, the admission line 1 of such air cleaning unit can be with hypogee facility
Ventilation shaft end is connected, and on the one hand ensure that and entirely descends building facilities ventilation incessantly for a long time, makes simultaneously
The air of entrance is purified, and the air changed is the air of high quality；On the other hand, the air of flowing makes building material
In the concentration of radioactive radon remain at a relatively low level.
B, into the air inside air purification medium unit pass sequentially through low efficient filter screen 2, HEPA high efficiency particulate airs 3,
The filtering of electrostatic electret net 4, absorptive media layers 6, photocatalyst net 8 and ultraviolet lamp 7.By including low efficient filter screen 2, HEPA efficient
Filter screen 3, the filtering of electrostatic electret net 4 filter element A filtration, the solid particulate matter in the air of source removed by the present apparatus
To the greatest extent.Again by the suction-operated of absorptive media layers 6, pernicious gas, germ in the air of source are largely adsorbed.Later partly not
The pernicious gas that is adsorbed, germ pass through the ultraviolet light photocatalysis base including photocatalyst net 8 and the photocatalysis unit C of ultraviolet lamp 7
This is degradable.
C, by above-mentioned processing, escape pipe 10 is led into interior, the air come out from outlet pipe 10 is very clean
Only.
D, after entire air cleaning unit uses 3~6 months time, adsorbing medium can be closer to saturation state, this
Sample just needs to carry out desorption processing to adsorbing medium, to prevent anti-avulsion it is attached fall pollutant get in, cause secondary pollution.By
In the adsorbance of substance reduced with the raising of temperature, the temperature of adsorbing medium is increased, the group adsorbed can be made
Divide and be desorbed, this method is also referred to as alternating temperature desorption, and the temperature in whole process is mechanical periodicity.The present invention utilizes height
Adsorbing medium is desorbed in temperature so that adsorbing medium is recycled.
Preferably, the desorption processing further includes following steps：
(1), when work is desorbed, admission line 1 and outlet pipe 10 are first closed, is powered to heating wire 5, passes through position at this time
In temperature sensor (not shown) and control media units (not shown) on absorptive media layers 6 so that absorption
Temperature on dielectric layer 6 maintains 100 DEG C or so.Since the thermal desorption temperature of activated carbon is 100 DEG C~260 DEG C, activated carbon
The desorption temperature of fiber is also at 100 DEG C or more, but temperature is higher, activated carbon or activated carbon fiber oxidation consumption in air
It is more serious, and temperature is higher, higher is required for the material of media units other component, so considering, it is preferable that
Heating temperature is selected as 100 DEG C.
(2), when being desorbed, it is preferable that desorption time is selected as 30~60min effects.Studies have shown that activated carbon is particle charcoal
When, desorption needs 30~60min, and when activated carbon is burgy, desorption only needs several seconds, and the desorption specific activity of activated carbon fiber
Charcoal is fast, so should determine desorption time according to the adsorbing medium material specifically selected, to ensure that low energy consumption, but in order to
Ensure that preferably desorption efficiency, desorption time are still selected as 30~60min.At the same time, air purification medium unit is ultraviolet
The TiO2 photocatalysts in photocatalysis region are degraded rapidly the pernicious gas of desorption, it is therefore prevented that direct emission pernicious gas is to big compression ring
Secondary pollution caused by border.After this temperature is maintained 30~60min, admission line 1 is opened, while being desorbed big in pipeline 9
Power Fan 100 brings into operation, and outdoor is discharged along desorption pipeline 9 in these air with larger air quantity.
(3), above-mentioned desorption process is repeated 2 times, to ensure that absorptive media layers 6 are desorbed completely；So far, activated carbon or work
Property carbon fiber be able to be desorbed and can reuse, continue efficiently to adsorb pernicious gas and germ.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
It can modify to the specific implementation mode of the present invention or equivalent replacement is carried out to some technical characteristics；Without departing from this
The spirit of inventive technique scheme should all cover within the scope of the technical scheme claimed by the invention.
Claims (6)
1. a kind of air purification medium unit, it is characterised in that：Filter element (A) including upstream, the absorption-desorption in middle reaches
Unit (B) and the photocatalysis unit (C) in downstream；The filter element (A) includes thick effect successively on the flow direction of air
Filter screen (2), HEPA high efficiency particulate airs (3) and the filtering of electrostatic electret net (4)；Absorption-the desorption unit (B) includes at least
Two layers of absorptive media layers (6), and heating wire (5), the absorptive media layers are equipped between two layers of absorptive media layers (6)
(6) material is activated carbon or activated carbon fiber；The photocatalysis unit (C) further includes perpendicular extremely with air-flow direction
Few two ultraviolet lamps (7) are equipped with photocatalyst net (8) between described two ultraviolet lamps (7), and the photocatalyst net (8) is in continuous
Fold-line-shaped structure, growth has TiO2 nanostructured layers on the photocatalyst net (8), and is provided with micron on the photocatalyst net (8)
Grade hole, the papillary knot of the TiO2 nanostructured layers being grown on photocatalyst net (8) at least partially class lotus leaf surface
Structure.
2. a kind of air cleaning unit, it is characterised in that：It is described including the air purification medium unit described in claim 1
Air cleaning unit further include the admission line (1) being connected with the filter element (A) and with the photocatalysis unit (C)
The desorption pipeline (9) and outlet pipe (10) being connected, the outlet pipe (10) are connected with indoor environment.
3. air cleaning unit according to claim 2, it is characterised in that：Suction in the absorption-desorption unit (B)
The thickness of attached dielectric layer (6) is 10~20mm.
4. air cleaning unit according to claim 2, it is characterised in that：The desorption pipeline (9), outlet pipe (10)
Inside it is respectively arranged with high-power blower (100) and low-power fan (200).
5. use and the processing method of a kind of air cleaning unit, it is characterised in that：Described method includes following steps：
A, the control valve in admission line (1) and outlet pipe (10) is opened, and opens the small work(in outlet pipe (10)
Rate wind turbine (200) closes the control valve of desorption pipeline (9), by admission line (1) from outdoor or indoor suction source air into
Enter the air cleaning unit；
B, low efficient filter screen (2), HEPA high efficiency particulate airs (3), electrostatic are passed sequentially through into the air inside air cleaning unit
Electret filter screen (4), absorptive media layers (6), photocatalyst net (8) and ultraviolet lamp (7)；
C, after the air cleaning unit uses 3~6 months time, desorption processing is carried out to absorptive media layers (6).
6. according to the method described in claim 5, it is characterized in that：The desorption processing further includes following steps：
(1), admission line (1) and outlet pipe (10) are closed, and is powered to heating wire (5), and maintains absorptive media layers (6)
Temperature is 80~110 DEG C；
(2), after 30~60min, admission line (1) is opened, while starting the high-power blower (100) in desorption pipeline (9), it will
By step (1) treated air outdoor is discharged to along desorption pipeline (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810219079.5A CN108662657A (en) | 2018-03-16 | 2018-03-16 | A kind of air purification medium unit, air cleaning unit and air purification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810219079.5A CN108662657A (en) | 2018-03-16 | 2018-03-16 | A kind of air purification medium unit, air cleaning unit and air purification method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108662657A true CN108662657A (en) | 2018-10-16 |
Family
ID=63785199
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810219079.5A Withdrawn CN108662657A (en) | 2018-03-16 | 2018-03-16 | A kind of air purification medium unit, air cleaning unit and air purification method |
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| CN (1) | CN108662657A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822580A (en) * | 2019-11-12 | 2020-02-21 | 上海莒纳新材料科技有限公司 | Air quality control system for closed space and application |
-
2018
- 2018-03-16 CN CN201810219079.5A patent/CN108662657A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822580A (en) * | 2019-11-12 | 2020-02-21 | 上海莒纳新材料科技有限公司 | Air quality control system for closed space and application |
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