CN106823781A - A kind of air purifier for removing indoor VOCs and preparation method thereof - Google Patents

A kind of air purifier for removing indoor VOCs and preparation method thereof Download PDF

Info

Publication number
CN106823781A
CN106823781A CN201710016531.3A CN201710016531A CN106823781A CN 106823781 A CN106823781 A CN 106823781A CN 201710016531 A CN201710016531 A CN 201710016531A CN 106823781 A CN106823781 A CN 106823781A
Authority
CN
China
Prior art keywords
aluminium flake
vuv
ozone
fixed plate
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710016531.3A
Other languages
Chinese (zh)
Inventor
张彭义
王海燕
郑红
徐同舟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsinghua University
Original Assignee
Tsinghua University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tsinghua University filed Critical Tsinghua University
Priority to CN201710016531.3A priority Critical patent/CN106823781A/en
Publication of CN106823781A publication Critical patent/CN106823781A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8668Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/66Ozone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/32Manganese, technetium or rhenium
    • B01J23/34Manganese
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/30Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/70Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708Volatile organic compounds V.O.C.'s
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/45Gas separation or purification devices adapted for specific applications
    • B01D2259/4508Gas separation or purification devices adapted for specific applications for cleaning air in buildings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/80Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804UV light
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

The present invention relates to a kind of air purifier for removing indoor VOCs and preparation method thereof, belong to technical field of air purification, more particularly to a kind of VUV photocatalysis air purifying device.Air purifier of the invention includes drain pan, photocatalytic degradation unit, ozone decomposed clean unit, fan, top shell, shell body.The present invention can continue at room temperature, VOCs rapidly in degraded room air, while purification secondary pollutant and unnecessary ozone, and simple structure, it is easily manufactured, more healthy living environment can be provided for indoor occupant, the development for photocatalysis air purifying device is significant.

Description

A kind of air purifier for removing indoor VOCs and preparation method thereof
Technical field
The present invention relates to technical field of air purification, more particularly to a kind of VUV photocatalysis air purifying device.
Background technology
In recent years, the control of environmental pollution and improvement are that human society faces and key subjects urgently to be resolved hurrily, people couple The understanding of environmental protection extends to interior by outdoor.Waving for interior is discharged into from gasoline, construction material, furniture, cigarette, electrical equipment etc. Hair property organic chemicals (VOCs) kind up to more than 300, including formaldehyde, benzene homologues, ammonia, dichloro (trichlorine) ethene, an oxygen Change high-risk, the toxic gas high such as carbon, nitrogen dioxide, sulfur dioxide.These chemical substances can trigger human and animal's body machine The dysfunction of energy, long-term suction even can be with diseases such as leukemogenesis, cancers.In face of the severe shape of room air pollution Gesture, people are in the urgent need to seeking a kind of economical and effective and environment-friendly processing method.
The purification style of room air is divided into natural purification method and forces the method for purification.Self-purification is exactly by leading to naturally Wind, windowing ventilation or installation ventilating fan, indoor contaminated air, the lighter field of suitable pollutant are replaced with fresh air Close, while the effect of self-purification depends on the clean-up performance of outdoor environment.It is then using certain technology or skill to force purification Art product makes the quality of room air take a turn for the better, be particularly well-suited to room and office space etc. with sealing and pollutant be difficult to The situation of outdoor diffusion.
Forcing purification can be divided into absorption method and decomposition method two ways again.Absorption method is the conventional process side of room air Method, generally using either physically or chemically air pollutants are collected, such as mechanical filter formula, absorption type, electrostatic, negative Oxonium ion air purifier etc..Such method is preferable for the removal effect of solid grain contamination, has the disadvantage dirty for gaseous state The dye thing particularly removal effect of VOCs is poor.For adsorption cleaning device, over time, sorbing material is up to Saturation, when temperature, wind speed are increased to a certain degree, the pollutant for being adsorbed is possible to separate out, is again introduced into Among room air, it is therefore desirable to which timing updates.
Decomposition method is that gaseous contaminant is degraded by chemically reacting, and eventually becomes harmless material, such as light Catalytic air purifier, ozone air purifier and bioanalysis air purifier, wherein photocatalysis technology is used as a kind of Novel oxygen Change technology is increasingly subject to the concern of domestic and foreign scholars.There is researcher to investigate nano-TiO within 20032The photocatalysis performance of coating with And performance (the HVAC 2002,32,23-25 of several photocatalysis air purifying devices of commercial type;Beijing University of Technology is learned Report 2005,31,58-62), find TiO2Particle have to indoor air pollutants such as nitrogen dioxide, sulfur dioxide and formaldehyde compared with Degradation effect well simultaneously lists some technical problems existing for several photocatalysis air purifying devices, such as nanomaterial loadings Not enough almost play a role firmly or not, its research provides base for the development of photocatalysis air purifying device from now on Plinth.2007, researcher was by WO3Modified P25 is carried on honeycomb aluminum (Indoor Air 2007,17,305-316), in UVC Photocatalytic degradation low concentration VOCs obtains good degradation effect, but the too high high cost of energy consumption under (254nm) light.There is report within 2013 Road is by TiO2(Journal of Hazardous Materials 2013,261,130-138) is supported on carbon fabric fiber, The light catalytic purifying room air under vacuum-ultraviolet light, the relatively low degradation efficiency of energy consumption is higher, but which presence can not be effective Remove the excessive ozone of generation and form pollution.2014, Pd was carried on TiO by researcher2On film, vacuum is purple at room temperature Outer Photocatalytic Degradation of Toluene and ozone obtain good removal effect (Chemical Engineering Journal 2014, 252,337-345), but the method introduce precious metals pd, improve preparation cost be not easy to practical application.
In sum, indoor air cleaner or a new and old technology and the field deposited is also one rising Field.Nowadays, various indoor air cleaners emerge in an endless stream, but all less desirable for clean-up effect.Must be comprehensive The advantage of various cleaning principles, improves its performance, designs the indoor air cleaner of comprehensive stronger multiple purifying effect, Indoor air quality could thoroughly be improved.
By the use of titanium dioxide as photochemical catalyst, the catalytic degradation VOCs under vacuum-ultraviolet light, including hard-degraded substance and Other method is difficult to the contaminant trace species for removing, and ultimately generates CO2And H2O.Although having catalyst inactivation, catalyst to be difficult to admittedly The shortcomings of fixed, concentration reduction degradation efficiency also declines, produces unnecessary ozone therewith, but generally the technology is expected to turn into clean room The effective means of VOCs in interior air.
The content of the invention
The present invention is directed to deficiency of the prior art, proposes a kind of air purifier for removing indoor VOCs, and the present invention can VOCs to continue at room temperature, rapidly in degraded room air, while purification secondary pollutant and unnecessary ozone, and knot Structure is simple, easily manufactured, can provide more healthy living environment for indoor occupant, and the development for photocatalysis air purifying device has It is significant.
A kind of air purifier for removing indoor VOCs, it is characterised in that the clarifier includes drain pan, photocatalytic degradation Unit, ozone decomposed clean unit, fan, top shell, shell body;
There is the drain pan sieve aperture to be flowed into for air and filtering bulky grain debris, and leg is provided with drain pan;
The photocatalytic degradation unit includes VUV lamps, VUV lamp bases, support, titanium sheet, fixed plate, the control of VUV circuit for lamp Device;VUV lamps are fixed on VUV lamp bases, at least one, VUV lamps, and titanium sheet is housed on support, and titanium sheet is fixed on by fixed plate On support, fixed plate realizes that surrounding is sealed to its inner part, while having VUV circuit for lamp control devices, circuit on the outside of fixed plate Control device includes lamp ballast, ballast fixed plate, binding post, and ballast is fixedly mounted in ballast fixed plate, connects Line terminals are connected with power switch;
The ozone decomposed clean unit includes ozone-removing device cabin and the ozone-removing device being placed in it, ozone decomposed Clean unit top is provided with sealing plate and is provided with special air outlet, and fan is embedded at air outlet admittedly, fan and air outlet size phase Adapt to;
There are air outlet, power switch, temperature control panel, wind speed control switch, time control switch in the top shell, electricity Source switch is connected with fan, heating rod, VUV lamp power supplys respectively, and wind speed control switch is connected with fan governor, and time control is opened Close and be connected with heating stick controller;
Shell body is combined with drain pan, top shell and for clarifier part to be encapsulated in the inside.
Fan is additionally provided between the drain pan and photocatalytic degradation unit, for controlling the more multicontaminated air of purification.
The support, fixed plate are the support and fixed plate of steel.
The fixed plate outside is equipped with Weight plate with the corresponding surface of VUV circuit for lamp control devices.
The VUV lamps are 4-9, are fixed on VUV lamp bases in the 4-9 lattice that support is separated into respectively, in support On to be disposed with titanium sheet adjacent with VUV lamps.
It is loaded with titanium dioxide in the titanium sheet, noble metal, cation or anion-modified titanium dioxide and ZnO, WO3、Ga2O3、In2O3And its at least one of modified light catalyst.
The ozone-removing device includes the filter layer formed by screen pack, granule filter material and/or is load Mn oxide Aluminium flake situ regeneration device.
Granule filter material in the filter layer is cocoanut active charcoal, the coal mass active carbon of dipping KI, NACF, One or more in cellular activated carbon or zeolite.
The aluminium flake situ regeneration device of the load Mn oxide is that the Mn oxide loaded on aluminium flake is removal ozone Catalyst, aluminium flake is at least a piece of, and hole is provided with the interspersed heating rod of aluminium flake interlayer or on aluminium flake, and heating rod is interspersed in hole.
A kind of aluminium flake preparation method for loading Mn oxide is as follows:
(1) aluminium flake is carried out into ungrease treatment, water is moistened completely to surface;
(2) permanganate is soluble in water, stirring adds adjuvant ammoniacal liquor or urea after it is fully dissolved, stirring is to equal Even mixing;
(3) aluminium flake obtained by step (1) treatment is put into and is placed in water bath with thermostatic control again into the mixed solution of step (2) and adds Heat;
(4) aluminium flake after the completion of step (3) is taken out, washs and dry;
(5) it is 1-10 with the part by weight of catalyst, water-based adhesive, water:1-5:1-10 prepares catalyst pulp;
(6) in the slurry of aluminium flake immersion step (5) for obtaining step (4), to aluminium base on or aluminium flake on uniform hanging, In -105 DEG C of dryings of room temperature 15 minutes;
(7) after repeat step (6) 3-5 times, it is completely dried the aluminium flake for obtaining loading Mn oxide;
The concentration of permanganate is 0.1-60g/L in the mixed solution, and the concentration of ammoniacal liquor or urea is 1.0-40g/L.
The surface area of the aluminium base is 0.2-28cm with the concentration ratio of permanganate2:0.1-60g/L。
The particle of the catalyst is more than 100 mesh, is birnessite manganese dioxide catalyst;The catalyst pulp PH value is 5-9.
Ungrease treatment in the step (1) is cleaned the grease of aluminum flake surface using cleaning agent, then is washed with clear water Wash;The cleaning agent is the degreasing agent of acid, alkalescence or organic solvent.
Permanganate in the step (2) is water-soluble permanganate, is potassium permanganate, sodium permanganate, permanganic acid amine In one kind or their any combination.
The water bath with thermostatic control heating-up temperature of the step (3) is -95 DEG C of room temperature, and the time is 0.5-12 hours.
The drying temperature of the step (4) is -350 DEG C of room temperature.
The solid content of slurry is 5-50% in the step (5).
The drying of the step (7) be load Mn oxide aluminium flake be put into baking oven in be machined to be completely dried.
Advantages of the present invention is mainly reflected in:
(1) titanium dioxide film materials catalyst and the equal preparation process is simple of Mn oxide, the low cost of aluminium flake load, easily In large-scale production.
(2) advantage that energy consumption is low, degradation rate is high of VUV photocatalysis has been given full play to, the gas to polluting fills The degraded for dividing.
(3) secondary pollution and unnecessary ozone that combined with ozone catalytic decomposition technology is produced to it carry out deep purifying.
(4) Mn oxide of aluminium flake load can recover to remove ozone activity by heating unit in-situ regeneration, while photocatalysis Unit and ozone filter layer can be replaced, so as to reduce the maintenance cost of the clarifier.
Brief description of the drawings
Fig. 1 is the internal structure schematic perspective view of the embodiment of the present invention 1.
Fig. 2 be top shell of the present invention, drain pan schematic diagram, wherein, Fig. 2 a top shell structural representations, Fig. 2 b be bottom case structure signal Figure.
Fig. 3 is the schematic diagram of ozone purification unit of the present invention, wherein, Fig. 3 a are ozone-removing device cabin, active carbon layer, load The aluminium flake situ regeneration device schematic diagram of Mn oxide, Fig. 3 b illustrate for heating rod is interspersed in the aluminium flake hole of load Mn oxide Figure.
Fig. 4 is that photocatalytic degradation unit of the present invention installs 4 or 9 vacuum UV lamp schematic diagrames.
The internal structure schematic perspective view of Fig. 5 embodiment of the present invention 2.
Fig. 6 is schematic appearance of the present invention.
In figure:(1) procapsid (2) Weight plate (3) fixed plate (4) titanium sheet (5) support (6) ozone-removing device cabin (7) heating Rod (8) aluminium carrier sheet (9) blower tray (10) wind speed control switch (11) time control switch (12) temperature control panel (13) Power switch (14) top shell (15) fan (16) filter layer (17) back casing (18) lamp ballast (19) ballast fixed plate (20) Binding post (21) VUV lamp (22) VUV lamp base (23) drain pan (24) aluminium loads film perforation (25) air outlet
Specific embodiment
Embodiment 1
A kind of air purifier for removing indoor VOCs of the invention, as shown in figure 1, the clarifier includes drain pan 23, light (shell body is by procapsid 1 and back casing 17 for catalytic degradation unit, ozone decomposed clean unit, fan 15, top shell 14, shell body Composition);
Drain pan 23 have sieve aperture be used for air flow into and filtering bulky grain debris, be provided with drain pan leg make clarifier and Leave space in placed side.
Photocatalytic degradation unit is used to carry out light-catalyzed reaction, produces ozone to carry out catalytic degradation, light to pollutant VOCs Catalytic degradation unit includes:The VUV lamps 21 on VUV lamp bases 22 are fixed on, VUV lamps are one, the vacuum that the present embodiment is used Ultraviolet lamp is ZW10D15Y-Z212, can launch wavelength for 185nm ultraviolet light, produce ozone.One steel support 5 is used for branch Support titanium sheet 4, titanium sheet 4 is directly fixed on support 5 by fixed plate 3, or is fixed on fixed plate 3 and titanium sheet 4 by screw On support 5, the present embodiment uses fixing form (fixed plate is corresponding with the size of support inside casing) VUV lamp bases 22, VUV Lamp 21, steel support 5, titanium sheet 4 are sealed by fixed plate surrounding and realize physical isolation with VUV circuit for lamp control devices.In fixation The outside of plate is while be provided with VUV (vacuum ultraviolet) circuit for lamp control device, circuit control device includes being fixed on ballast Lamp ballast 18, binding post 20 in fixed plate 19, binding post is connected with power switch, and the present embodiment uses commercially available Lamp ballast, binding post, model are respectively BS-ZSZ101E, JHT4502.Catalyst is loaded with titanium sheet 4, what is loaded urges Agent is titanium dioxide, noble metal, cation or anion-modified titanium dioxide and ZnO, WO3、Ga2O3、In2O3And its change At least one of property photochemical catalyst, titanium sheet 4 is adjacent with vacuum UV lamp 21, and the present embodiment is used and is loaded with porous surface two The titanium sheet 4 of thin film of titanium oxide.
Ozone decomposed clean unit is used to decompose the ozone of photocatalytic degradation unit output, and ozone decomposed clean unit has one Ozone-removing device cabin 6, the polytetrafluoroethylmaterial material that the present embodiment ozone-removing device cabin 6 uses, ozone-removing device is placed in cabin, As shown in Figure 3.Ozone decomposed clean unit top is provided with blower tray and is provided with air outlet, the size of fan 15 and air outlet chi It is very little be adapted, fan 15 is embedded in air outlet admittedly, with ensure transfer out be purification after air, fan can be by wind speed control switch 10 regulation air quantity.The fan that the present embodiment is used for commercially available, model A2V13C38TBT-1.
Ozone-removing device can be individually the filter layer 16 formed by screen pack, granule filter material, or Supported Manganese oxygen The combination of the aluminium flake situ regeneration device, or filter layer of compound and the aluminium flake situ regeneration device of load Mn oxide, As shown in Figure 3.
A kind of form of ozone-removing device of the present invention is filter layer 16, and the granule filter material in filter layer can be coconut activated One or more in charcoal, the dipping coal mass active carbon of KI, NACF, cellular activated carbon or zeolite, this implementation Example uses the coal mass active carbon of dipping KI.
Another form of ozone-removing device of the present invention is the aluminium carrier sheet 8 for loading Mn oxide, is loaded in aluminium carrier sheet Mn oxide be the catalyst for removing ozone, aluminium carrier sheet is at least a piece of, upper and lower in aluminium carrier sheet or interlayer is provided with heating Rod is provided with hole in aluminium carrier sheet, and heating rod 7 is interted in hole, and heating rod 7 is interspersed to be arranged in aluminium carrier sheet interlayer or hole, Not shown in the figure of interlayer, heating rod is arranged in structure in hole as shown in Figure 3 b to heating rod.The manganese loaded in aluminium carrier sheet Oxide realizes that 0.5-2 hours in-situ regeneration recovers catalysis activity at 25-80 DEG C by heating rod.This implementation ozone-removing device The aluminium flake situ regeneration device of the load Mn oxide of use, form is that heating rod is interspersed to be arranged in aluminium load film perforation.
Top shell 14 is provided with air outlet, power switch 13, temperature control panel 12, wind speed control switch 10, the present embodiment The model of use is TG250, time control switch 11, and the model that the present embodiment is used is DKJ-Y120K, controls adding for heating rod Hot timing, power switch is connected with fan, heating rod, VUV lamp power supplys respectively, wind speed control switch and fan governor phase Even, time control switch is connected with heating rod temperature controller.
Drain pan, top shell are fastened on the upper and lower opening of shell body respectively, and clarifier part is encapsulated in into the inside.
Embodiment 2
On the basis of the air purifier of embodiment 1, a wind can be also installed between drain pan and photocatalytic degradation unit Fan, as shown in figure 5, can control to suck more air for needing and purifying.
VUV lamps number in embodiment 1 and 2 can also be 4 or 9, can reach more preferable photocatalytic degradation VOCs effects, As shown in Figure 4.VUV lamp bases 23 are separated into 4 or 9 lattice with steel support, VUV lamps are installed in correspondence lattice, pacified on support 5 Equipped with titanium sheet 4, titanium sheet is adjacent with vacuum UV lamp, and titanium sheet 4 is fixed on support 5 by hollow fixed mount and screw.
Weight plate, the weight of Weight plate can also be installed with VUV circuit for lamp control device opposite faces on the outside of fixed plate Match with VUV circuit for lamp control devices, for keeping balance clarifier is more consolidated.
The preparation method of aluminium carrier sheet 8 of the invention is as follows:
(1) aluminium flake is carried out into ungrease treatment, water is moistened completely to surface;
(2) permanganate is soluble in water, stirring adds adjuvant ammoniacal liquor or urea after it is fully dissolved, stirring is to equal Even mixing;
(3) aluminium flake obtained by step (1) treatment is put into and is placed in water bath with thermostatic control again into the mixed solution of step (2) and adds Heat;
(4) aluminium flake after the completion of step (3) is taken out, washs and dry;
(5) it is 1-10 with the part by weight of catalyst, water-based adhesive, water:1-5:1-10 prepares catalyst pulp;
(6) in the slurry of aluminium flake immersion step (5) for obtaining step (4), to aluminium base on or aluminium flake on uniform hanging, In -105 DEG C of dryings of room temperature 15 minutes;
(7) after repeat step (6) 3-5 times, it is completely dried the aluminium flake for obtaining loading Mn oxide;
The concentration of permanganate is 0.1-60g/L in the mixed solution, and the concentration of ammoniacal liquor or urea is 1.0-40g/L.
The surface area of the aluminium base is 0.2-28cm with the concentration ratio of permanganate2:0.1-60g/L。
The particle of the catalyst is more than 100 mesh, is birnessite manganese dioxide catalyst;The catalyst pulp PH value is 5-9.
Ungrease treatment in the step (1) is cleaned the grease of aluminum flake surface using cleaning agent, then is washed with clear water Wash;The cleaning agent is the degreasing agent of acid, alkalescence or organic solvent.
Permanganate in the step (2) is water-soluble permanganate, is potassium permanganate, sodium permanganate, permanganic acid amine In one kind or their any combination.
The water bath with thermostatic control heating-up temperature of the step (3) is -95 DEG C of room temperature, and the time is 0.5-12 hours.
The drying temperature of the step (4) is -350 DEG C of room temperature.
The solid content of slurry is 5-50% in the step (5).
The drying of the step (7) be load Mn oxide aluminium flake be put into baking oven in be machined to be completely dried.
Concrete example 1:
6g potassium permanganate is weighed, is added into 100mL pure water, ultrasound is to being completely dissolved.It is subsequently added 4mL ammoniacal liquor molten Liquid, stirs and evenly mixs.Quality is removed the grease and oxide layer on surface for the aluminium flake of 20g through degreasing, alkali cleaning, is cleaned with pure water to table Face moistens completely, in then putting into above-mentioned potassium permanganate-ammonia water mixture.This solution is placed at 40 DEG C of water bath with thermostatic control and is reacted 2h.Aluminium flake is taken out, is dried at 60 DEG C, obtain pretreated aluminium flake.
29.44g manganese acetates and 24.24g ferric nitrates are weighed, the water of 400mL is added, ultrasound is complete to manganese acetate and ferric nitrate Dissolving.12.64g potassium permanganate and 2.0g CTAB are weighed, the water of 400mL is added, the solution of gained is stirred continuously, and to it In the mixed solution of manganese acetate and ferric nitrate is dropwise added dropwise.140 DEG C of reactions 2 are small during the solution that will be thoroughly mixed is positioned over reactor When.The Mn oxide centrifugation of generation, washing are placed in 105 DEG C of oven dryings, that is, obtain manganese dioxide-catalyst.Grinding, takes It is standby more than the powder of 100 mesh.
20g manganese dioxide powder body catalysts are weighed, 10g acryloid cements are added, 50g deionized waters mix, consolidate Content is about 25% slurry, and regulation slurry pH is 8, then removes the foam of pulp surface.
Pretreated aluminium flake is immersed in above-mentioned slurry, stirring, to aluminium flake on uniform hanging, then take out 100 Dried 15 minutes at DEG C, be repeated 3 times.After 4 hours are completely dried at 100 DEG C, the manganese oxide catalyst of aluminium flake load is obtained Scavenging material.
Concrete example 2:
6g potassium permanganate is weighed, is added into 100mL pure water, ultrasound is to being completely dissolved.1g urea is subsequently added, is stirred Mix.Quality is removed the grease and oxide layer on surface for the aluminium flake of 20g through degreasing, alkali cleaning, cleans complete to surface with pure water Moistening, in putting into above-mentioned potassium permanganate-urea mixed solution afterwards.This solution is placed at 80 DEG C of water bath with thermostatic control and reacts 3h.Take out Aluminium flake, dries at 105 DEG C, obtains pretreated aluminium flake.
29.44g manganese acetates and 12.12g ferric nitrates are weighed, the water of 400mL is added, ultrasound is complete to manganese acetate and ferric nitrate Dissolving.12.64g potassium permanganate and 2.0g CTAB are weighed, the water of 400mL is added, the solution of gained is stirred continuously, and to it In the mixed solution of manganese acetate and ferric nitrate is dropwise added dropwise.100 DEG C of reactions 2 are small during the solution that will be thoroughly mixed is positioned over reactor When.The Mn oxide centrifugation of generation, washing are placed in 105 DEG C of oven dryings, that is, obtain manganese dioxide-catalyst.Grinding, takes It is standby more than the powder of 100 mesh.
25g manganese dioxide powder body catalysts are weighed, 10g polyurethane binder and 20g deionized waters is added, mixing is obtained Solid content is about 45.5% slurry, and regulation slurry pH is 7.
Pretreated aluminium flake is immersed in above-mentioned slurry, stirring, to aluminium flake on uniform hanging, then take out 100 Dried 15 minutes at DEG C, be repeated 5 times.After 4 hours are completely dried at 100 DEG C, the manganese oxide catalyst of aluminium flake load is obtained Scavenging material.
Air purifier of the invention, primarily efficient filter unit is arranged on low side, filters contaminated air (drain pan, filtering Bulky grain object);Adjacent with primarily efficient filter unit is photocatalytic degradation unit, can produce ozone and carry out light-catalyzed reaction, Catalytic degradation is carried out to the VOCs in air;It is afterwards ozone decomposed unit, is used to purify unnecessary ozone and secondary pollution, Again the air being cleaned is discharged by being arranged on the axial flow blower on top.

Claims (10)

1. it is a kind of remove indoor VOCs air purifier, it is characterised in that the clarifier include drain pan, photocatalytic degradation list Unit, ozone decomposed clean unit, fan, top shell, shell body;
There is the drain pan sieve aperture to be flowed into for air and filtering bulky grain debris, and leg is provided with drain pan;
The photocatalytic degradation unit includes VUV lamps, VUV lamp bases, support, titanium sheet, fixed plate, VUV circuit for lamp control devices; VUV lamps are fixed on VUV lamp bases, at least one, VUV lamps, and titanium sheet is housed on support, and titanium sheet is fixed on support by fixed plate On, fixed plate realizes that surrounding is sealed to its inner part, while there is VUV circuit for lamp control devices on the outside of fixed plate, circuit control Device includes lamp ballast, ballast fixed plate, binding post, and ballast is fixedly mounted in ballast fixed plate, terminals Son is connected with power switch;
The ozone decomposed clean unit includes ozone-removing device cabin and the ozone-removing device being placed in it, ozone decomposed purification Unit top is provided with sealing plate and is provided with special air outlet, and fan is embedded at air outlet admittedly, and fan is adapted with air outlet size;
There are air outlet, power switch, temperature control panel, wind speed control switch, time control switch in the top shell, power supply is opened Pass be connected with fan, heating rod, VUV lamp power supplys respectively, wind speed control switch is connected with fan governor, time control switch and Heating stick controller is connected;
Shell body is combined with drain pan, top shell and for clarifier part to be encapsulated in the inside.
2. clarifier according to claim 1, it is characterised in that be additionally provided between the drain pan and photocatalytic degradation unit Fan, for controlling the more multicontaminated air of purification.
3. clarifier according to claim 1 and 2, it is characterised in that the support, fixed plate are the support of steel and solid Fixed board.
4. clarifier according to claim 1 and 2, it is characterised in that the fixed plate outside controls dress with VUV circuit for lamp The corresponding surface put is equipped with Weight plate.
5. clarifier according to claim 1 and 2, it is characterised in that the VUV lamps are 4-9, respectively in support point It is fixed on VUV lamp bases in the 4-9 lattice being divided into, titanium sheet is disposed with support adjacent with VUV lamps.
6. clarifier according to claim 1 and 2, it is characterised in that be loaded with titanium dioxide in the titanium sheet, your gold Category, cation or anion-modified titanium dioxide and ZnO, WO3、Ga2O3、In2O3And its at least the one of modified light catalyst Kind.
7. clarifier according to claim 1 and 2, it is characterised in that the ozone-removing device is included by screen pack, particle Filter layer and/or be the aluminium flake situ regeneration device for loading Mn oxide that filtrate is formed.
8. clarifier according to claim 7, it is characterised in that the granule filter material in the filter layer is coconut activated One or more in charcoal, the dipping coal mass active carbon of KI, NACF, cellular activated carbon or zeolite.
9. clarifier according to claim 7, it is characterised in that the aluminium flake situ regeneration device of the load Mn oxide That the Mn oxide loaded on aluminium flake is the catalyst for removing ozone, aluminium flake is at least a piece of, in the interspersed heating rod of aluminium flake interlayer or Hole is provided with aluminium flake, heating rod is interspersed in hole.
10. a kind of aluminium flake preparation method of the Mn oxide of load according to claim 9 is as follows:
(1) aluminium flake is carried out into ungrease treatment, water is moistened completely to surface;
(2) permanganate is soluble in water, stirring adds adjuvant ammoniacal liquor or urea after it is fully dissolved, and is stirred until homogeneous mixed Close;
(3) aluminium flake obtained by step (1) treatment is put into the mixed solution of step (2) and is placed in water bath with thermostatic control heating again;
(4) aluminium flake after the completion of step (3) is taken out, washs and dry;
(5) it is 1-10 with the part by weight of catalyst, water-based adhesive, water:1-5:1-10 prepares catalyst pulp;
(6) in the slurry of aluminium flake immersion step (5) for obtaining step (4), to aluminium base on or aluminium flake on uniform hanging, in room The drying 15 minutes of -105 DEG C of temperature;
(7) after repeat step (6) 3-5 times, it is completely dried the aluminium flake for obtaining loading Mn oxide;
The concentration of permanganate is 0.1-60g/L in the mixed solution, and the concentration of ammoniacal liquor or urea is 1.0-40g/L.
The surface area of the aluminium base is 0.2-28cm with the concentration ratio of permanganate2:0.1-60g/L。
The particle of the catalyst is more than 100 mesh, is birnessite manganese dioxide catalyst;The pH value of the catalyst pulp It is 5-9.
Ungrease treatment in the step (1) is cleaned the grease of aluminum flake surface using cleaning agent, then is washed with clear water;Institute State the degreasing agent that cleaning agent is acid, alkalescence or organic solvent.
Permanganate in the step (2) is water-soluble permanganate, in being potassium permanganate, sodium permanganate, permanganic acid amine A kind of or their any combination.
The water bath with thermostatic control heating-up temperature of the step (3) is -95 DEG C of room temperature, and the time is 0.5-12 hours.
The drying temperature of the step (4) is -350 DEG C of room temperature.
The solid content of slurry is 5-50% in the step (5).
The drying of the step (7) be load Mn oxide aluminium flake be put into baking oven in be machined to be completely dried.
CN201710016531.3A 2017-01-10 2017-01-10 A kind of air purifier for removing indoor VOCs and preparation method thereof Pending CN106823781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710016531.3A CN106823781A (en) 2017-01-10 2017-01-10 A kind of air purifier for removing indoor VOCs and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710016531.3A CN106823781A (en) 2017-01-10 2017-01-10 A kind of air purifier for removing indoor VOCs and preparation method thereof

Publications (1)

Publication Number Publication Date
CN106823781A true CN106823781A (en) 2017-06-13

Family

ID=59118505

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710016531.3A Pending CN106823781A (en) 2017-01-10 2017-01-10 A kind of air purifier for removing indoor VOCs and preparation method thereof

Country Status (1)

Country Link
CN (1) CN106823781A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107569987A (en) * 2017-09-28 2018-01-12 彩融电光源技术(上海)有限公司 A kind of processing method and processing device of middle low concentration VOCs gases
CN109985486A (en) * 2019-05-13 2019-07-09 天津市圣宁生物科技有限公司 A kind of novel ozone filter device
CN109999624A (en) * 2019-04-11 2019-07-12 南京大学环境规划设计研究院股份公司 The integration apparatus of adsoption catalysis coupling processing acid waste gas and organic exhaust gas
CN113019306A (en) * 2019-12-25 2021-06-25 广东美的白色家电技术创新中心有限公司 Adsorbing material and preparation method and application thereof
WO2022095619A1 (en) * 2020-11-06 2022-05-12 佛山市顺德区美的电热电器制造有限公司 Air purifier and catalyst preparation method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001246227A (en) * 2000-01-05 2001-09-11 Reiko Udagawa Air cleaner for copier
CN101785872A (en) * 2010-02-09 2010-07-28 清华大学 Air purification part and device with air self-purification function
CN201996882U (en) * 2011-02-25 2011-10-05 广东雪莱特光电科技股份有限公司 Photo-hydrogen ion sterilization module
CN103028358A (en) * 2012-12-25 2013-04-10 同济大学 Photoelectric catalytic reactor based on titanium dioxide nanotube arrays
CN105854592A (en) * 2016-04-28 2016-08-17 清华大学 Air purifying material and preparation method and application thereof
CN106000093A (en) * 2016-07-22 2016-10-12 清华大学 In-situ regenerating device for purifying air and purifier comprising same
CN206508799U (en) * 2017-01-10 2017-09-22 清华大学 A kind of air purifier for removing indoor VOCs

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001246227A (en) * 2000-01-05 2001-09-11 Reiko Udagawa Air cleaner for copier
CN101785872A (en) * 2010-02-09 2010-07-28 清华大学 Air purification part and device with air self-purification function
CN201996882U (en) * 2011-02-25 2011-10-05 广东雪莱特光电科技股份有限公司 Photo-hydrogen ion sterilization module
CN103028358A (en) * 2012-12-25 2013-04-10 同济大学 Photoelectric catalytic reactor based on titanium dioxide nanotube arrays
CN105854592A (en) * 2016-04-28 2016-08-17 清华大学 Air purifying material and preparation method and application thereof
CN106000093A (en) * 2016-07-22 2016-10-12 清华大学 In-situ regenerating device for purifying air and purifier comprising same
CN206508799U (en) * 2017-01-10 2017-09-22 清华大学 A kind of air purifier for removing indoor VOCs

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107569987A (en) * 2017-09-28 2018-01-12 彩融电光源技术(上海)有限公司 A kind of processing method and processing device of middle low concentration VOCs gases
CN109999624A (en) * 2019-04-11 2019-07-12 南京大学环境规划设计研究院股份公司 The integration apparatus of adsoption catalysis coupling processing acid waste gas and organic exhaust gas
WO2020207236A1 (en) * 2019-04-11 2020-10-15 南京大学环境规划设计研究院股份公司 Integrated equipment for adsorption and catalytic coupling treatment of acid waste gas and organic waste gas
CN109999624B (en) * 2019-04-11 2023-12-08 南京大学环境规划设计研究院集团股份公司 Integrated equipment for treating acid waste gas and organic waste gas by adsorption and catalysis coupling
CN109985486A (en) * 2019-05-13 2019-07-09 天津市圣宁生物科技有限公司 A kind of novel ozone filter device
CN109985486B (en) * 2019-05-13 2024-05-31 天津市圣宁生物科技有限公司 Ozone filtering device
CN113019306A (en) * 2019-12-25 2021-06-25 广东美的白色家电技术创新中心有限公司 Adsorbing material and preparation method and application thereof
WO2022095619A1 (en) * 2020-11-06 2022-05-12 佛山市顺德区美的电热电器制造有限公司 Air purifier and catalyst preparation method

Similar Documents

Publication Publication Date Title
CN106823781A (en) A kind of air purifier for removing indoor VOCs and preparation method thereof
CN105597528A (en) Waste gas purification device and process
CN106642487A (en) Fresh air and indoor air purification integrated device and purification method
CN104456755A (en) Bi-power combined type air purifier
CN201578969U (en) Reproducible indoor air purifier
CN110252300A (en) Ag/MnO2Catalyst and its preparation and the application in formaldehyde is gone in room temperature
CN101209411A (en) Active carbon fiber with nano photocatalyst and processing method thereof
CN101360955B (en) Biological process for purifying air in confined rooms and apparatus thereof
CN106000093B (en) A kind of situ regeneration device purifying air and the clarifier containing the device
CN106139743A (en) A kind of preparation method of layer structure air purifying filter mesh sheet
CN106939140A (en) Photocatalyst spray its preparation method
CN108607583A (en) A kind of carbon-based oxyhalogen bismuth composite catalyst of photocatalytic degradation volatile organic matter and its preparation method and application
JP2007275292A (en) Deodorization filter and deodorizing device
CN206508799U (en) A kind of air purifier for removing indoor VOCs
CN107243321A (en) A kind of air cleaning material of long-acting removal organic polluter
CN111215123A (en) Can simultaneously remove COS and H in garbage gasification2S catalyst and preparation method thereof
CN107314456A (en) Can highly effectively removing volatile organic gas vertical indoor air cleaner
CN110227346A (en) A kind of leather and fur products exhaust treatment system
CN103272575B (en) A kind of nanometer titanic oxide composite photochemical catalyst material and preparation method thereof
CN110038425B (en) graphene-TiO 2 Photocatalytic air purifier
CN108212148B (en) Attapulgite clay composite catalyst for removing formaldehyde and preparation method and application thereof
CN104826589A (en) Rice husk containing bactericidal active carbon filter material and preparation method thereof
CN110354892A (en) The preparation method of oxide modifying MCM-48 molecular sieve and its application in denitration collaboration demercuration
CN115870011A (en) Nano-catalyst for efficiently degrading ammonia pollutants and application method thereof
CN108607521A (en) A kind of modified oxidized aluminium base scavenging material and preparation method thereof except formaldehyde

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170613

WD01 Invention patent application deemed withdrawn after publication