CN108421407A - A kind of plated film UV photooxidations machine and its manufacturing method - Google Patents
A kind of plated film UV photooxidations machine and its manufacturing method Download PDFInfo
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- CN108421407A CN108421407A CN201810188044.XA CN201810188044A CN108421407A CN 108421407 A CN108421407 A CN 108421407A CN 201810188044 A CN201810188044 A CN 201810188044A CN 108421407 A CN108421407 A CN 108421407A
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- Prior art keywords
- photooxidation
- aluminizer
- machines
- antioxidation coating
- light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/007—Separation 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 by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
Abstract
The present invention relates to a kind of plated film UV photooxidations machine and its manufacturing methods, belong to UV photochemical catalytic oxidation waste gas pollution control and treatments field.The present invention has plated one layer of aluminum membranous layer and antioxidation coating with ultraviolet light high reflectance in the interior of UV photooxidation machines, this method is remarkably improved the utilization rate of UV light, realize that honeycomb or foam photocatalyst are maximized by UV light radiation areas, make photocatalyst fully by ultraviolet lighting, generate more strong oxidizing property free radicals, increase the collision probability of UV light and stench and organic pollutant molecule, make to become small molecule compared with the abundant chain rupture of the harmful substance of long chain, the oxidative degradation for promoting exhaust gas, is greatly improved the utilization rate of UV light and the degradation efficiency to exhaust gas；Meanwhile antioxidation coating can also be effectively prevented internal layer aluminium and babinet by pernicious gas, ultraviolet light, strong oxidizing property free radical and ozone corrosiveness, to extend the service life of babinet.
Description
Technical field
The invention belongs to the photochemical catalytic oxidation waste gas pollution control and treatment fields UV more particularly to a kind of plated film UV photooxidations machine and its manufacturers
Method.
Background technology
It is current numerous enterprises problem urgently to be resolved hurrily to find efficiently applicable VOCs Treatment process.Currently, ripe use
Mainly have in the technology of industrial control process VOCs：Combustion method, biological degradation method, active carbon adsorption, photochemical catalytic oxidation,
Plasma method and the combination technique between them.
Wherein, technology one of of the UV technology of catalytic oxidization degradation as popular at present removal VOCs and stench,
It is widely used in terms of handling low concentration VOCs.Its dominant mechanism is：Under the action of high energy ultraviolet, stench and have
The molecular chain rupture of machine pollutant, the oxygen molecule in air, which decomposes, generates free oxygen, and free oxygen institute band positron-electron is uneven,
Ozone is generated after being combined with oxygen molecule；Simultaneously when ultraviolet light is in catalyst TiO2Surface when, the oxygen and moisture of surrounding
Son will produce hydroxyl radical free radical (OH), superoxide radical (O by excitation2 —) and Both peroxyl radical (HO2) etc. it is strong
The active group of oxidisability, therefore, the organic pollution of small molecule chain can be degraded under the action of ozone and a variety of free radicals
Harmless CO2And H2O.But at present UV technology of catalytic oxidization degradation that there are UV light utilization efficiencies is low, exhaust gas decomposition efficiency decline compared with
Fast and honeycomb or foam photocatalyst utilization rate are low (i.e.：Effective light radiation area is smaller) etc. technical problems.
Chinese patent (103261101 B of CN) discloses a kind of photocatalysis element, " bee of the coated catalyst of air stream
Nest shape " target (is similar to aluminum honeycomb photocatalyst), and UV lamp pipe is radiated on photocatalyst to generate bactericidal properties object by emitting UV light
Matter (ozone and a variety of free radicals).The UV illumination that emission source directly emits can be mapped on target by the UV photochemical catalytic oxidations element,
Can the second part UV energy in spontaneous emission in future source be reflected on target.Using mirror-reflection principle and design unique reflection
Structure realizes the higher order reflection of UV light, to improve the ratio that photocatalyst receives UV light energies.But this fully rely on minute surface
The design of reflection needs to match the optical catalyst carrier of specific structure and can be only achieved preferable effect at specific position
Fruit.Therefore, the complicated feature of design and installation causes applicability not strong, and manufacturing cost is relatively high.
Therefore, for UV light utilization efficiencies existing for existing UV technology of catalytic oxidization degradation under low, exhaust gas decomposition efficiency
It drops very fast and honeycomb or foam photocatalyst utilization rate is low (i.e.：Effective light radiation area is smaller) the problems such as, it designs and manufactures
A kind of high-efficient and lasting, economical and practical and UV photooxidation machines for ease of maintenaince realize that the high usage of UV light and honeycomb or foam light touch
Matchmaker receives the high swept area of UV light, has important industrial value and economic and social benefits.
Invention content
For the above-mentioned prior art the problem of, the present invention is intended to provide a kind of plated film UV photooxidations machine and its manufacturer
Method, the present invention has plated one layer of aluminium film with ultraviolet light high reflectance in the interior of UV photooxidation machines, with prior art phase
Than this method is remarkably improved the utilization rate of UV light, i.e. fully reflection, increases UV light and foul gas and volatile organic matter
The collision probability of molecule makes to become small molecule compared with the abundant chain rupture of the harmful substance of long chain, promotes further oxidative degradation,
So that the utilization rate of UV light is greatly improved and to the degradation efficiency of exhaust gas.
An object of the present invention is to provide a kind of UV photooxidation machines of aluminizer.
The second object of the present invention is to provide a kind of UV photooxidation machines with aluminizer and antioxidation coating.
The third object of the present invention is to provide a kind of manufacturing method of the UV photooxidation machines of aluminizer.
The fourth object of the present invention is to provide the UV photooxidations machine of above-mentioned aluminizer and with aluminizer and antioxidation coating
The application of UV photooxidation machines.
For achieving the above object, the invention discloses following technical proposals：
First, the invention discloses a kind of UV photooxidation machines of aluminizer, the aluminium film is plated in table in the babinet of UV photooxidation machines
Face.
Aluminum membranous layer can effectively improve the utilization rate of UV light, and realize honeycomb or foam photocatalyst by UV light radiation areas
It maximizes, aluminizer includes mirror-reflection and diffusing reflection to the reflection of ultraviolet light, wherein mirror-reflection can make reflection light edge
Specific direction reflects away, and irreflexive light is reflected away along any direction.One side of two-part reflection light
Face can increase the collision probability of itself and foul gas and volatile organic contaminant molecule so that compared with the harmful substance of long chain
Abundant chain rupture becomes small molecule, is easy to further oxidative degradation, on the other hand can make photocatalyst fully by ultraviolet lighting,
Generate more strong oxidizing property free radicals so that the degradation efficiency of pernicious gas significantly improves.
Preferably, the aluminium film is plated in the UV lamp pipe and honeycomb or the surrounding case of foam photocatalyst of the adjacent sets of UV photooxidation machines
Internal surface.
The thickness of the aluminium film is 1-50 μm.
Preferably, the thickness of the aluminium film is 20 μm.
The width of the aluminium film can be adjusted according to actual conditions, and the present invention does not limit.
Secondly, the invention discloses a kind of UV photooxidation machines with aluminizer and antioxidation coating, the aluminium film is plated in UV light
The interior of oxygen machine, the antioxidation coating are covered in aluminium film surface.
One layer of fine and close aluminum oxide film that aluminium film surface is oxidized to form is to ultraviolet light (especially 200nm purples below
Outside line) there is stronger absorption, and the ultraviolet light of 185nm is a kind of effective degrade foul gas and organic dirt of volatility
The ultraviolet light of object molecule is contaminated, it can make the decomposition generation free oxygen of the oxygen molecule in air be combined generation ozone with oxygen molecule again, rise
To the effect of oxidative degradation VOCs small molecules；Therefore, it needs to add plating anti-again in aluminium film surface under vacuum after aluminizer
Oxide layer, to improve the reflectivity of 185nm ultraviolet lights, in this way, can not only prevent aluminium film from being aoxidized, moreover it is possible to keep aluminium film
Intrinsic vacuum ultraviolet (referring mainly to the ultraviolet light that wavelength is 185nm) reflectivity, and then improve the degradation efficiency to pernicious gas.
The antioxidation coating is SiO2Or LiF, MgF2、AlF3、LaF3One kind in equal fluorides.
The antioxidation coating evaporates (tungsten, aluminium, platinum boat or Al using hot boat2O3Crucible heating evaporation), electron beam heating steam
A kind of in the techniques such as hair, ion beam sputter depositing carries out plus plating.
The thickness of the antioxidation coating is 1-20 μm.
Again, the invention discloses a kind of manufacturing methods of the UV photooxidation machines of aluminizer, including：It is aluminized using vacuum evaporation
Metallic aluminium is melted by high temperature and is evaporated, make aluminum vapor deposit buildup in UV photooxidation machines under high vacuum state by membrane technology
Interior to get.
Finally, the UV photooxidations the invention discloses the UV photooxidations machine of above-mentioned aluminizer and with aluminizer and antioxidation coating
The application of machine, the application include：For in the catalysis oxidation of foul gas and volatile organic matter, degradation process.
It should be noted that it is most excellent one of the reflecting medium of ultraviolet light to be evaporated in vacuo aluminizer, particularly with wavelength
Reflectivity for the ultraviolet light of 254 nm, aluminium can reach 90% or more, and the reflectivity for the ultraviolet light that wavelength is 185nm can be reached
To 70% or more.Exactly high reflectance feature of the aluminizer to short wave ultraviolet is utilized in the present invention, in the babinet of UV photooxidation machines
Certain thickness aluminum membranous layer is plated in inner surface appropriate position, and the utilization rate of UV light is improved with this, and realizes that honeycomb or foam light touch
Matchmaker is maximized by UV light radiation areas；Meanwhile antioxidation coating can also be effectively prevented internal layer aluminium and babinet by harmful gas
The corrosiveness of body, ultraviolet light, strong oxidizing property free radical and ozone, to extend the service life of babinet.
Compared with prior art, the present invention achieves following advantageous effect：
(1) present invention employs the interiors in UV photooxidation machines to plate the work of the aluminium film with ultraviolet light high reflectance
Skill technology is remarkably improved the utilization rate of UV light, increases the collision probability of itself and foul gas and volatile organic matter molecule,
Make to become small molecule compared with the abundant chain rupture of the harmful substance of long chain, is easy to further oxidative degradation.
(2) present invention employs the interiors in UV photooxidation machines to plate the work of the aluminium film with ultraviolet light high reflectance
Skill technology is, it can be achieved that honeycomb or foam photocatalyst are maximized by UV light radiation areas, you can makes photocatalyst fully by ultraviolet
Illumination generates more strong oxidizing property free radicals so that the degradation efficiency of pernicious gas significantly improves.
(3) present invention adds plating antioxidation coating again in the aluminium film layer surface plated, and can prevent aluminium film surface from aoxidizing to form densification
Aluminum oxide film and cause the reflectivity of 185nm ultraviolet lights to reduce, inner layer material can also be effectively prevented by harmful gas
The corrosiveness of body, ultraviolet light, strong oxidizing property free radical and ozone significantly reduces babinet to extend the service life of babinet
The processing cost of inner surface.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.
Fig. 1 is the box structure diagram of UV photooxidations machine of the present invention.
Fig. 2 is the structural schematic diagram of aluminium plating membrane of the present invention.
The UV photocatalytic oxidation degradation efficiency comparatives that Fig. 3 is 1-4 of the embodiment of the present invention scheme.
In above-mentioned attached drawing, the label respectively represents：101- exhaust gas entrances, 102- flow distribution plates, 103- primary filters, 104-UV
Fluorescent tube, the position of 105- honeycombs or the preferred aluminizer of foam photocatalyst, 106-, 107- air outlets, 201- antioxidation coatings, 202-
Aluminium film, 203-UV photooxidation box body steel plates.
Specific implementation mode
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has logical with the application person of an ordinary skill in the technical field
The identical meanings understood.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular shape
Formula is also intended to include plural form, additionally, it should be understood that, when in the present specification use term "comprising" and/or
When " comprising ", existing characteristics, step, operation, device, component and/or combination thereof are indicated.
As described in background, existing UV technology of catalytic oxidization degradation there are UV light utilization efficiencies low, exhaust gas decomposition
Efficiency declines the problems such as very fast and honeycomb or low foam photocatalyst utilization rate, therefore, a kind of plated film UV light of the present application
Oxygen machine and its manufacturing method, in conjunction with the drawings and specific embodiments, invention is further explained.
As shown in Figure 1, exhaust-gas treatment flow is：Exhaust gas enters box house through tank inlet 101 first, using shunting
Plate 102 and primary filter 103 enter the UV photochemical catalytic oxidation stages, the UV light that UV lamp pipe 104 is sent out and catalyst 105 (honeycomb or
Foam photocatalyst) under the action of, emission molecule is degraded to harmless CO2And H2O。
In the following example, the exhaust gas of different rates is passed through box house from exhaust gas entrance 101, and test air outlet
Exhaust gas concentration at 107, and finally calculate degradation efficiency.
Embodiment 1
The UV photooxidation machine inner surfaces of the present embodiment do not design aluminizer and antioxidation coating.
Embodiment 2
As shown in Fig. 2, the present embodiment is coated with one layer of aluminium film 202, the aluminium in the inner surface of UV photooxidation box bodies steel plate 203
Film 202 is plated in per adjacent two rows of UV lamp pipes 104 and (106 institute in Fig. 1 of the interior between honeycomb or foam photocatalyst 105
The position shown) at, the width of aluminium film is 5cm, and the thickness of aluminium film is 15 μm.
Embodiment 3
With embodiment 2, difference lies in：The present embodiment using hot boat steaming technique the surface of aluminium film 202 add plated one layer it is anti-
Oxide layer 201, the antioxidation coating 201 are MgF2, the thickness of the antioxidation coating 201 is 5 μm.
Embodiment 4
With embodiment 3, difference lies in：All inner surfaces of babinet of UV photooxidation machines plate aluminium film and antioxidation coating, and
The thickness of the aluminium film is 20 μm, and the antioxidation coating 201 is LiF, and the thickness of the antioxidation coating 201 is 10 μm.
Embodiment 5
With embodiment 3, difference lies in：The present embodiment adds plating using electron beam heating steaming technique on the surface of aluminium film 202
The thickness of one layer of antioxidation coating 201, the aluminium film is 50 μm, and the antioxidation coating 201 is SiO2, the antioxidation coating 201
Thickness is 1 μm.
Embodiment 6
With embodiment 3, difference lies in：The present embodiment adds plating using ion aeam sputtering deposition technique on the surface of aluminium film 202
The thickness of one layer of antioxidation coating 201, the aluminium film is 1 μm, and the antioxidation coating 201 is LaF3, the antioxidation coating 201
Thickness be 20 μm.
Embodiment 7
With embodiment 3, difference lies in：The antioxidation coating 201 is AlF3。
The result of calculation of the degradation efficiency of the exhaust gas of different rates is as shown in Figure 3：Comparative example 1 and embodiment 2, can be with
Find out, the exhaust gas decomposition efficiency that the UV photooxidation machines of aluminium film have been plated in babinet has obtained significantly being promoted, and with exhaust rate
Increase, the variation of degradation efficiency is little.This illustrates that aluminizer can not only increase substantially degradation efficiency, additionally it is possible to significantly
Improve the stability of exhaust gas decomposition.
Comparative example 2 and embodiment 3-4, it can be seen that in aluminium film plus after having plated antioxidation coating, degradation efficiency and useless
The stability of gas degradation is had been further upgraded.And the area of aluminizer is bigger, and degradation efficiency is bigger, but suitable
Membrane area of aluminizing needs that two aspects of cost and qualified discharge is combined to consider.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for those skilled in the art
For member, the application can have various modifications and variations.Any modification made by within the spirit and principles of this application,
Equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of UV photooxidation machines of aluminizer, which is characterized in that the aluminium film is plated in the inner surface of UV photooxidation box bodies.
2. the UV photooxidation machines of aluminizer as described in claim 1, which is characterized in that the aluminium film is plated in the adjacent of UV photooxidation machines
The surrounding interior of the UV lamp pipe of group and honeycomb or foam photocatalyst.
3. the UV photooxidation machines of aluminizer as claimed in claim 1 or 2, which is characterized in that the thickness of the aluminium film is 1-50 μm.
4. the UV photooxidation machines of aluminizer as claimed in claim 3, which is characterized in that the thickness of the aluminium film is 20 μm.
5. a kind of UV photooxidation machines with aluminizer and antioxidation coating, which is characterized in that in claim 1-4 any one of them
The aluminium film surface adds plating antioxidation coating.
6. the UV photooxidation machines with aluminizer and antioxidation coating as claimed in claim 5, which is characterized in that the antioxidation coating
For SiO2Or LiF, MgF2、AlF3、LaF3。
7. the UV photooxidation machines with aluminizer and antioxidation coating as claimed in claim 5, which is characterized in that the antioxidation coating
Thickness be 1-20 μm.
8. as claim 5-7 any one of them has the UV photooxidation machines of aluminizer and antioxidation coating, which is characterized in that described
Antioxidation coating is carried out plus is plated using hot boat evaporation, electron beam heating evaporation, a kind of in ion beam sputter depositing technique.
9. the manufacturing method of the UV photooxidation machines of aluminizer according to any one of claims 1-4, which is characterized in that use vacuum
Metallic aluminium is melted by high temperature and is evaporated, make aluminum vapor deposit buildup in UV light under high vacuum state by evaporation plating aluminium membrane technology
The interior of oxygen machine to get.
10. the UV photooxidations machine of aluminizer according to any one of claims 1-4, such as claim 5-8 any one of them have
There are aluminizer and the UV photooxidations machine of antioxidation coating, manufacturing method as claimed in claim 9 organic in foul gas and volatility
Application in the catalysis oxidation of object, degradation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188044.XA CN108421407A (en) | 2018-03-07 | 2018-03-07 | A kind of plated film UV photooxidations machine and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810188044.XA CN108421407A (en) | 2018-03-07 | 2018-03-07 | A kind of plated film UV photooxidations machine and its manufacturing method |
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Effective date of registration: 20200907 Address after: 250061, No. ten, No. 17923, Lixia District, Ji'nan City, Shandong Province Applicant after: Jia Yuxi Address before: 253072 Shandong city of Dezhou Province Economic and Technological Development Zone Song Guan Tun crystal Street Office No. 587 Hua Road (hi tech Innovation Service Center 3-302) Applicant before: SHANDONG GELAN YUNTIAN ENVIRONMENT TECHNOLOGY Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180821 |