CN208097815U - A kind of purification device of high penetration support type axial direction photocatalysis treatment pernicious gas - Google Patents
A kind of purification device of high penetration support type axial direction photocatalysis treatment pernicious gas Download PDFInfo
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- CN208097815U CN208097815U CN201820370290.2U CN201820370290U CN208097815U CN 208097815 U CN208097815 U CN 208097815U CN 201820370290 U CN201820370290 U CN 201820370290U CN 208097815 U CN208097815 U CN 208097815U
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- pernicious gas
- axial direction
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Abstract
A kind of purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, including cabinet, it is characterized in that, light pipe ultraviolet source is set in cabinet, in its axial direction of light pipe ultraviolet source outer, light-weight high-polymer filler with light and air-flow high penetration is the nanocatalyst dense packing effect of carrier, pernicious gas enters along one end of light pipe light source, irreversible oxidation-disinfection pernicious gas is induced by light pipe ultraviolet source irradiation carrier nanometer catalyst through detention absorption to pollute, the utility model is suitable for densely populated hospital, waiting station, movie theatre, meeting room etc., and pouity dwelling place, it butchers, sludge workshop, leather processing etc. has the use of the Work places and tunnel space of peculiar smell.If outer packing selects transparent material, and can be used for purifying the illumination in place.
Description
Technical field
The invention belongs to technical field of experiment equipment, be related to photocatalysis treatment pernicious gas experimental facilities, in particular to one
The purification device of kind high penetration support type axial direction photocatalysis treatment pernicious gas.
Background technique
The pernicious gases such as stench are present in livestock and poultry, butcher, food preliminary working, sewage plant sludge workshop, city sewer, spray
It applies, the application such as paint chemical industry, medicine are ground, pesticide, daily chemical product, furniture, electronic material, additive, leather chemicals, Yi Jiche
Stand, hall, theater the confined space.Ingredient has ammonia (NH3), hydrogen sulfide (H2S the formaldehyde, benzene, indoles of TVOC are referred to as) and
(C8H5-NHCH3), trimethylamine ((CH3)3N), methyl mercaptan (CH3SH) class etc..Or there is strong impulse stench taste, also have
Also there is biggish toxicity a bit, be easily combined together with moisture, the grit etc. in air, enter human body with respiratory system, it is right
Each system of human body has different degrees of damage.It is prolonged and repeated by this kind of material incentive, olfactory fatigue can be caused to even result in smell
Failure, working efficiency, judgment and decrease of memory.
Currently used processing technique mainly has absorption process, absorption method, catalytic combustion technology, biotechnology, photocatalytic-oxidation
Change technology, plasma technique and membrane-base absorption technology etc..In view of air purifying process implements removal efficiency, the equipment of operation
Operating cost and maintenance complexity, wherein photocatalysis oxidation technique as a kind of new green environment protection technology have be applicable in model
It encloses extensively without secondary pollution, the advantages such as reaction rate is fast, operating cost is low.Have reaction condition mild, anti-applied to air purification
Thoroughly, almost all there should be Governance Ability to all contaminants in air, more and more be paid attention to by people.
The technical method of photochemical catalytic oxidation is：
(1) when ultraviolet lighting is mapped to semiconductor powder catalyst surface, a large amount of active electrons (e of generation-) and hole (h+),
Show very high activity.Under certain condition, light intensity is stronger, and catalyst can excite more electronics (e-), to generate
The oxidationreduction effectiveness of more light induced electrons and photo-induced hole；In addition, the O on the surface of nm-class catalyst, in air2
And H2O molecule generates stronger living radical component (OH, O by catalysis2 -), thus, have existing for synergistic oxidation degradation
Evil gas component.
(2) make foul gas molecular scission, while exciting and generating hydroxyl radical free radical, active oxygen isoreactivity group and ozone
Equal oxidizing species.These active groups and strong oxidizer can be indiscriminate aoxidized with almost all of odorant
Reaction, makes odorant mineralising H2O、CO2Equal inorganic molecules substance.
(3) dichloride in anatase type grade TiO2The excitation of light induced electron and photo-induced hole needed for photochemical catalyst can be in UV-A
(387.5nm) wave band even can be used solar energy and do excitation light source.
(4) irreversible oxidizing bacteria albumen, the microorganisms such as rapid, the effective eliminating bacteria of energy, virus.
Find out from the mechanism of photocatalytic advanced oxidation, under certain light intensity irradiation, light induced electron and photo-induced hole occur
Oxidation and its catalytic surface product it is related.That is the nanometer particle size on the one hand depending on catalyst itself disperses, in addition
It is exactly that the use dispersion degree implemented can be contacted with pernicious gas.It is tired because recycling in the application due to the particle very little of nanometer Ti02
The problems such as difficult, causes the loss of catalyst to waste, is unfavorable for the industrialization of product.
The characteristics of according to gaseous contamination, smell photocatalysis purifier are mostly that catalyst is attached to netted, cloth-like, microspheroidal support
Surface.And require load that there is good permeability, to light-catalyzed reaction inertia, large specific surface area has pollutant processed
Very strong suction-operated, is easily isolated.It has been reported that be that Ti02 is attached to ceramics, glass fibre, silica gel, molecular sieve, work
Property the particulate carriers such as charcoal on, the work specific surface area of catalyst is improved by increasing actual dispersion degree, meanwhile, and solve and urge
The recycling of agent and the functionization of degradation and industrialization.The suction-operated of carrier provides high concentration for light-catalyzed reaction
The contact environment of pernicious gas, promotes reaction rate.Animal doctor system of Milan, ITA university Guarino etc.；The Xu Xin etc. of China
The trial of relevant air cleaning equipment is had developed using photocatalysis technology.But still there are the irradiation of light path loss (light intensity and biographies
It is defeated to decay apart from exponentially)；Carrier vapour lock and shading loss；It is unfavorable that carrier quality and production shape etc. reduce photocatalytic activity etc.
Factor.
Summary of the invention
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of high penetration support type axial direction light
The purification device of catalytic treatment pernicious gas makes from the carrier structure of catalyst, the stroke mode of light-catalyzed reaction and device
Improvement is made with expansion several respects of environment, is more in line with actual demand.
To achieve the goals above, the technical solution adopted by the present invention is that：
A kind of purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, including cabinet 8, feature exists
In, the setting light pipe ultraviolet source 2 in cabinet 8, its axial dense packing effect loaded nano catalysis in 2 outer of light pipe ultraviolet source
Agent 4, pernicious gas enter from the bottom inlet 6 of cabinet 8, irradiate carrier nanometer catalyst 4 by light pipe ultraviolet source 2 and induce not
Reversible oxidation-sterilizing gas polluter.
The light pipe ultraviolet source 2 is can corresponding UVA, UVC wave band with 4 forbidden band of semiconductor catalyst.
The carrier nanometer catalyst 4 includes carrier 4-2 and semiconductor catalyst 4-1, semiconductor catalyst 4-1 load
In on the surface carrier 4-2.Half adhered on the carrier 4-2 blade face of uniform irradiation high penetration to 2 zero distance of light pipe ultraviolet source
Conductor catalyst 4-1 keeps carrier nanometer catalyst 4 good to light and air-flow logical in all around having for light pipe ultraviolet source 2
Saturating detention effect.
The carrier 4-2 is the high molecular polymer of cm size, is the spherical structure or similar ball of a kind of multi-panel hollow out
The deformation filler of shape structure.In structure, at the middle part of ball along one of reinforcing ring of entire Zhou Changyou, respectively have eight to ten up and down in ring
Two ball clacks, upper and lower ball clack intermesh, and arrange along central axis in radiation.It is big with surface area, mass-transfer efficiency height and weight
Gently, intensity is big, easy for installation, free space is big, high temperature resistant, and corrosion-resistant, surface hydrophilic performance is good, and windage is small, and blade is more, gas velocity
High characteristic.
The semiconductor catalyst 4-1 is nano-TiO2、CdS、ZnO、Fe203、CuO、WO3And SnO2Any one of, or
Any rare earth doped, transient metal doped, noble metal loading, composite semiconductor, the modification of organic dyestuff photosensitizer are repaired
Adorn the product of processing.
Multistage U or S type tandem compound channel, the resistance by loaded catalyst 4 to Diffusion of gas stream are set in the cabinet 8
Absorption-photocatalysis-oxidation disinfection is stayed, increases the residence time of light-catalyzed reaction, to the maximum extent to improve clean-up effect.And it can
According to the needs of use environment, 2 power of light pipe ultraviolet source (related to fluorescent tube length) and wavelength and transparent overwrap are chosen
The illumination function played.
The axial flow blower 3 that mute low power consuming is arranged in the channel provides air force.Axial flow blower 3 may be provided at air-flow
The place that turns back.
Compared with prior art, the beneficial effects of the invention are as follows：
1, present invention uses a kind of high molecular polymer carriers of large scale (cm).Shape is polyhedron empty ball knot
Structure.At the middle part of ball along one of reinforcing ring of entire Zhou Changyou, respectively there are eight to ten two ball clacks up and down in ring.Upper and lower ball clack is mutual
Staggeredly, it is arranged along central axis in radiation.Big with surface area, mass-transfer efficiency is high and light-weight, intensity is big, easy for installation, logical
Permeability is strong (light transmission, ventilative), and corrosion-resistant, surface hydrophilic performance is good, the characteristics such as blade is more, high cycle speed, convenient filling.Nano-TiO2
The attached catalyst carrier that suspension or colloidal sol are obtained through adjuvant provides photocatalytic surfaces and high penetration effect as big as possible
Fruit makes light efficiency and light-catalysed tends to maximize.
2, the present invention chooses high and practical extensively ultraviolet (UV-C, the UV-A) lamp tube light source of cost performance, catalyst carrier edge
Axial stroke direction filling, zero contact without light path lose, the light for giving full play to the light efficiency of light source unit length, and designing accordingly
Source light path diameter effect with uniformity.In conjunction with above-mentioned catalyst carrier feature, for the purification device of single light source,
Photocatalysis treatment of the polluted gas from input end through optical tube length will be realized to outlet end：The light-catalyzed reaction residence time is most
Bigization；Photocatalysis efficiency caused by maximum spreading area catalyst and the saturating effect of best light maximizes；And the windage because of carrier
The maximization of small bring maximum airflow contacting efficiency and operation service efficiency.It connects when using more light pipes, U or S can be formed
The smell photocatalysis purifier that type difference path (residence time) and multi-mode assemble.And the power (its corresponding length) of light pipe
Selection is optimized and combined in combination with the environment space implemented.Air-flow is loaded the efficiently sufficient detention-of closely knit loaded catalyst
It is adsorbing-oxidising, obtain sufficiently lasting irreversible degradation.In limited working space, this process can recycle progress and
Only need power consumption power (single light pipe only hectowatt power, 5000 hour service life).The consumption of no reagent, without secondary pollution, it is non-maintaining, have
Self-cleaning equipment palingenesis.
3, the use of lightweight loaded catalyst and transparent exterior tank material, makes smell photocatalysis purifier have both illumination
Or the function of lamp box advertisement, in station hall, job shop or tunnel traffic；If selecting the light pipe of 185nm frequency range,
While photocatalysis occurs, and the synergistic effect that air generates ozone can be punctured, be more suitable for pouity dwelling place environment degradable pernicious gas
With the needs of sterilization；Built-in axial flow blower, noise is small, at low cost, and riding position selection is convenient.
Therefore, the present invention has apparent progress in terms of carrier, stroke mode and use environment.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is a kind of structural schematic diagram of loaded catalyst of the present invention.
Specific embodiment
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, including cabinet 8,
Multistage U or S type tandem compound channel are set in cabinet 8, and the axial flow blower 3 that mute low power consuming is arranged in channel provides air and moves
Power, axial flow blower 3 may be provided at the place that turns back of air-flow.Pernicious gas enters from the bottom inlet 6 of cabinet 8, is arranged in cabinet 8
Light pipe ultraviolet source 2, its axial dense packing effect carrier nanometer catalyst 4 of 2 outer of light pipe ultraviolet source, light pipe ultraviolet source 2
For UVA, UVC wave band corresponding with semiconductor catalyst 4 forbidden band energy, carrier nanometer catalyst 4 is irradiated by light pipe ultraviolet source 2
Induce irreversible oxidation-sterilizing gas polluter.Detention absorption-photocatalysis-by loaded catalyst 4 to Diffusion of gas stream
Oxidation sterilizing increases the residence time of light-catalyzed reaction, to the maximum extent to improve clean-up effect.
As shown in Fig. 2, carrier nanometer catalyst 4 includes carrier 4-2 and semiconductor catalyst 4-1, semiconductor catalyst
4-1 is carried on the surface carrier 4-2.Adhere on the blade face carrier 4-2 of uniform irradiation high penetration to 2 zero distance of light pipe ultraviolet source
Semiconductor catalyst 4-1.
Carrier 4-2 is the high molecular polymer of cm size, be a kind of multi-panel hollow out spherical structure or similar spherical junctions
The deformation filler of structure.In structure, at the middle part of ball along one of reinforcing ring of entire Zhou Changyou, respectively there are eight to ten two up and down in ring
Ball clack, upper and lower ball clack intermesh, and arrange along central axis in radiation.It is big with surface area, mass-transfer efficiency is high and light-weight,
Intensity is big, easy for installation, free space is big, high temperature resistant, and corrosion-resistant, surface hydrophilic performance is good, and windage is small, and blade is more, high cycle speed
Etc. characteristics.
Semiconductor catalyst 4-1 is nano-TiO2、CdS、ZnO、Fe203、CuO、WO3And SnO2Any one of or it is any
Kind rare earth doped, transient metal doped, noble metal loading, composite semiconductor, at organic dyestuff photosensitizer modifying and decorating
The product of reason.
Specific implementation process of the invention is as follows：
1, it prepares：According to processing environment, optional 10~300 watts of 2 single power of light pipe ultraviolet source are not equal or bigger.And
It is matched with the length dimension of fluorescent tube.Can also the combination of more serial or parallel connections to reach required light efficiency.Less than 380nm wavelength
Light pipe can be with excitation nano TiO2Free radical advanced oxidation occurs for catalyst (anatase titanium dioxide), and 254nm light can sterilize again,
185nm wavelength then punctures air, generates ozone O3Synergistic effects.
2, it operates：The S type harmful gas purifying device of thtee-stage shiplock is as shown in Figure 1.The three light pipe ultraviolet sources 2 prepared
It combines in series, the top of cabinet 8 is the ballast distribution area 1 of light pipe ultraviolet source 2.Cabinet 8 is by transparent material scutum 7
It is isolated into the S type gas circuit of three units.Loaded catalyst 4 is tightly packed with respectively along the trend (axial direction) of light pipe ultraviolet source 2.
Pernicious gas enters Unit the 1st by light pipe ultraviolet source 2 through air inlet partition 5.Along the guiding of axial flow blower 3, flow up.And
It adsorbs with the supported catalyst 4 of high penetration through detention, under the irradiation excitation of light pipe ultraviolet source 2, occurs irreversible advanced
Oxidation and bactericidal effect.In turn, pernicious gas will enter Unit the 2nd and the 3rd according to the water conservancy diversion of axial flow blower 3, further degrade
For purification gas discharge.In this process, photochemical catalytic oxidation is persistently carried out with maximum reaction time.The support type of high penetration
Catalyst 4 provides maximum reaction contact area and maximum light source utilization efficiency.
Light source is the prime cost consumption of smell photocatalysis purifier, and the continuous use service life of usual light pipe ultraviolet source 2 is
5000~9000 hours.As above, according to the situation of series connection light pipe light source, single pipeline can be become or concatenated group of double branch equipped
It sets.
Cm size high molecular polymer carrier selected by the present invention, with a kind of multi-blade spherical structure of multi-panel hollow out.
Big with surface area, mass-transfer efficiency is high, light-weight, permeability strong (light transmission is breathed freely), corrosion-resistant, surface hydrophilic performance, windage
The features such as small, high cycle speed, convenient filling.The loaded catalyst of coating thereon produces pernicious gas ingredient in air-flow stroke
Raw efficient detention absorption, and in the multidirectional through under light exciting irradiation of UV light tube light source zero distance, carry out the maximum residence time
Irreversible free-radical oxidation and bactericidal effect.Suitable for densely populated hospital, waiting station, movie theatre, meeting room etc., and
Pouity dwelling place, butcher, sludge workshop, leather processing etc. have peculiar smell Work places and tunnel space use.If outer packing selection is saturating
Bright material, and can be used for purifying the illumination in place.
Claims (10)
1. a kind of purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, including cabinet (8), feature exists
In setting light pipe ultraviolet source (2) in cabinet (8), in light pipe ultraviolet source (2) outer, its axial dense packing effect support type is received
Rice catalyst (4), pernicious gas enter from the bottom inlet (6) of cabinet (8), are received by light pipe ultraviolet source (2) irradiation support type
Rice catalyst (4) induces irreversible oxidation-sterilizing gas pollution.
2. the purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, feature exist according to claim 1
In the light pipe ultraviolet source (2) is can corresponding UVA, UVC wave band with semiconductor catalyst (4) forbidden band.
3. the purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, feature exist according to claim 1
In the carrier nanometer catalyst (4) includes carrier (4-2) and semiconductor catalyst (4-1), semiconductor catalyst (4-1)
It is carried on the surface carrier (4-2).
4. the purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, feature exist according to claim 3
In the high molecular polymer that, the carrier (4-2) is cm size, be a kind of multi-panel hollow out spherical structure or similar spherical junctions
The deformation filler of structure.
5. the purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, feature exist according to claim 4
In at the middle part of ball along one of reinforcing ring of entire Zhou Changyou, respectively having eight to ten two balls up and down in ring in the spherical structure
Valve, upper and lower ball clack intermesh, and arrange along central axis in radiation.
6. the purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, feature exist according to claim 4
The semiconductor in, light pipe ultraviolet source (2) zero distance adhered on carrier (4-2) blade face of uniform irradiation high penetration is urged
Agent (4-1).
7. the purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, feature exist according to claim 4
In the semiconductor catalyst (4-1) is nano-TiO2、CdS、ZnO、Fe203、CuO、WO3And SnO2Any one of or it is any
Kind rare earth doped, transient metal doped, noble metal loading, composite semiconductor, at organic dyestuff photosensitizer modifying and decorating
The product of reason.
8. the purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, feature exist according to claim 1
In setting Multistage U or S type tandem compound channel, the resistance by loaded catalyst (4) to Diffusion of gas stream in the cabinet (8)
Absorption-photocatalysis-oxidation disinfection is stayed, increases the residence time of light-catalyzed reaction, to the maximum extent to improve clean-up effect.
9. the purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, feature exist according to claim 8
In setting axial flow blower (3) provides air force in the channel.
10. the purification device of high penetration support type axial direction photocatalysis treatment pernicious gas, feature exist according to claim 9
In the place that turns back of air-flow is arranged in the axial flow blower (3).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211784A (en) * | 2018-03-19 | 2018-06-29 | 西安建筑科技大学 | A kind of purifier of high penetration support type axial direction photocatalysis treatment pernicious gas |
| CN112870966A (en) * | 2021-01-20 | 2021-06-01 | 南阳师范学院 | Nano semiconductor photocatalysis device for air purification |
-
2018
- 2018-03-19 CN CN201820370290.2U patent/CN208097815U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211784A (en) * | 2018-03-19 | 2018-06-29 | 西安建筑科技大学 | A kind of purifier of high penetration support type axial direction photocatalysis treatment pernicious gas |
| CN112870966A (en) * | 2021-01-20 | 2021-06-01 | 南阳师范学院 | Nano semiconductor photocatalysis device for air purification |
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Granted publication date: 20181116 |