CN204637981U - Photochemical catalytic oxidation waste gas treatment equipment - Google Patents
Photochemical catalytic oxidation waste gas treatment equipment Download PDFInfo
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- CN204637981U CN204637981U CN201520095737.6U CN201520095737U CN204637981U CN 204637981 U CN204637981 U CN 204637981U CN 201520095737 U CN201520095737 U CN 201520095737U CN 204637981 U CN204637981 U CN 204637981U
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- waste gas
- photodestruciton
- process pipeline
- feed channel
- exhaust piping
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Abstract
The utility model discloses a kind of photochemical catalytic oxidation waste gas treatment equipment, this equipment comprises exhaust piping, process pipeline and new feed channel, and exhaust piping is communicated with new feed channel by process pipeline; Process pipeline is provided with filter near one end of exhaust piping, and between filter with new feed channel, be installed on the multistage photodestruciton catalytic unit be connected successively in this process pipeline, waste gas in exhaust piping obtains harmless new gas successively after filter and the process of multi-stage light cracking and catalyzing device, and this harmless new gas is delivered in air by new feed channel; Every grade of photodestruciton catalytic unit includes the waste gas after to filtration to carry out the ultraviolet lamp tube of photodestruciton and carries out light-catalysed catalyst gauze to the waste gas after photodestruciton.The utility model is multipolarity design due to photodestruciton catalytic unit, makes to process in next stage at the waste gas of the non-photodestruciton catalysis of previous stage, to avoid there is untreated waste gas in process pipeline, to reach the sufficient effect of degraded.
Description
Technical field
The utility model relates to exhaust-gas treatment field, particularly relates to a kind of photochemical catalytic oxidation waste gas treatment equipment.
Background technology
VOCs treatment refers to that the organic exhaust gas produced in industrial processes carries out the work for the treatment of of adsorbing, filtering, purifying, usual VOCs treatment has the benzene homologues VOCs treatment such as formaldehyde VOCs treatment, benzene toluene dimethylbenzene, the organic purification of air process such as carbon containing hydrogen-oxygen such as acetone butanone VOCs treatment, ethyl acetate exhaust-gas treatment, mist of oil VOCs treatment.
The feature of VOCs treatment is: organic exhaust gas generally all exist inflammable and explosive, poisonous and harmful, water insoluble, be dissolved in the features such as organic solvent, intractability be large.What generally adopt when VOCs treatment is organic exhaust gas condensation absorption method, absorption method, directly combustion method, absorption process, biological degradation method etc.
At present, there is granule density and cause greatly processing line clogging in the processing method of waste gas, and degradation time deficiency causes can only Partial digestion, therefore there is exhaust-gas treatment not exclusively and the defect such as inefficiency.
Utility model content
For the weak point existed in above-mentioned technology, the utility model provides the photochemical catalytic oxidation waste gas treatment equipment that a kind of use safety, exhaust-gas treatment are complete, degraded is thorough and treatment effeciency is high.
For achieving the above object, the utility model provides a kind of photochemical catalytic oxidation waste gas treatment equipment, and comprise exhaust piping, process pipeline and new feed channel, described exhaust piping is communicated with new feed channel by process pipeline; Described process pipeline is provided with the filter for being tackled by the particle in waste gas near one end of exhaust piping, and between filter with new feed channel, be installed on the multistage photodestruciton catalytic unit be connected successively in this process pipeline, waste gas in exhaust piping obtains harmless new gas successively after filter and the process of multi-stage light cracking and catalyzing device, and this harmless new gas is delivered in air by new feed channel; Every grade of photodestruciton catalytic unit includes the waste gas after to filtration to carry out the ultraviolet lamp tube of photodestruciton and carries out light-catalysed catalyst gauze to the waste gas after photodestruciton.
Wherein, each ultraviolet lamp tube includes the uviol lamp of quartz glass tubing and refractory ceramics, and described uviol lamp is placed in quartz glass tubing, and the inwall of quartz glass tubing is coated with protective layer.
Wherein, the two ends of each quartz glass tubing all by flange connect process pipeline in; And the ultraviolet that each uviol lamp sends contains the ultraviolet light of 184.9nm wavelength period.
Wherein, the surface of each catalyst gauze is coated with Nano titanium dioxide ultramicron.
Wherein, the photodestruciton catalytic unit in described process pipeline has two-stage at least, and spacing between every adjacent two-stage photodestruciton catalytic unit is identical, and spacing in every grade of photodestruciton catalytic unit between ultraviolet lamp tube with catalyst gauze is also identical.
Wherein, described waste gas is one or more in ammonia, hydrogen sulfide, methyl mercaptan, benzene, styrene, carbon disulfide, trimethylamine.
The beneficial effects of the utility model are: compared with prior art, the photochemical catalytic oxidation waste gas treatment equipment that the utility model provides, set up filter and photodestruciton catalytic unit, and photodestruciton catalytic unit comprises ultraviolet lamp tube and catalyst gauze, in this design, the particle in waste gas can be tackled by filter, thus the follow-up technique of guarantee equipment can stablize normal operation; The energy that ultraviolet lamp tube has directly can destroy the chemical bond of organic gas molecule, makes it the living radical group that cracking forms free state, thus increases the reactivity of organic gas molecule; Simultaneously by the oxygen in ultraviolet light cracking mixing air, make it the free oxygen atom of formation and combine to generate ozone, to reach the effect of photodestruciton; Catalyst gauze can move to rapidly its surface and activate by the oxygen that adsorbs and moisture, to reach the effect of photochemical catalytic oxidation; Meanwhile, because photodestruciton catalytic unit is multipolarity design, make to process in next stage at the waste gas of the non-photodestruciton catalysis of previous stage, to avoid there is untreated waste gas in process pipeline, to reach the sufficient effect of degraded.The utility model has use safety, exhaust-gas treatment is complete, degraded is fully thorough and treatment effeciency high.
Accompanying drawing explanation
Fig. 1 is the structural representation of photochemical catalytic oxidation waste gas treatment equipment of the present utility model;
Fig. 2 is photocatalysis principle figure of the present utility model.
Main element symbol description is as follows:
10, exhaust piping 11, process pipeline
12, new feed channel 13, filter
14, photodestruciton catalytic unit 15, flange
141, ultraviolet lamp tube 142, catalyst gauze
1411, quartz glass tubing 1412, uviol lamp.
Detailed description of the invention
In order to more clearly state the utility model, below in conjunction with accompanying drawing, the utility model is further described.
Refer to Fig. 1, the photochemical catalytic oxidation waste gas treatment equipment that the utility model provides, comprise exhaust piping 10, process pipeline 11 and new feed channel 12, exhaust piping 10 is communicated with new feed channel 12 by process pipeline 11; Process pipeline 11 is provided with the filter 13 for being tackled by the particle in waste gas near one end of exhaust piping 10, and between filter 13 with new feed channel 12, be installed on the multistage photodestruciton catalytic unit 14 be connected successively in this process pipeline 11, waste gas in exhaust piping 11 obtains harmless new gas successively after filter 13 and the process of multi-stage light cracking and catalyzing device 14, and this harmless new gas is delivered in air by new feed channel 12; Every grade of photodestruciton catalytic unit 14 includes the waste gas after to filtration to carry out the ultraviolet lamp tube 141 of photodestruciton and carries out light-catalysed catalyst gauze 142 to the waste gas after photodestruciton.The ultraviolet that each ultraviolet lamp tube 141 sends contains the ultraviolet light of 184.9nm wavelength period.The surface of each catalyst gauze 142 is coated with Nano titanium dioxide ultramicron.
Operation principle of the present utility model comprises Four processes:
1, pretreatment: waste gas is by the filter of equipment, and the particle in waste gas can be tackled by its filter, thus the follow-up technique of guarantee equipment can stablize normal operation.
2, photodestruciton: adopt high energy ultraviolet (containing 184.9nm wavelength period ultraviolet light), the energy that this fluorescent tube ultraviolet light has directly can destroy the chemical bond of organic gas molecule, make it the living radical group that cracking forms free state, thus increase the reactivity of organic gas molecule; Simultaneously by the oxygen in ultraviolet light cracking mixing air, make it the free oxygen atom of formation and combine to generate ozone, this reaction equation is UV+O2 → O-+O* (active oxygen) and O+O2 → O3 (ozone)].
3, photocatalysis: containing Nano titanium dioxide ultramicron on catalyst gauze, when to accept wavelength be the Ultraviolet radiation of below 388nm to Nano titanium dioxide ultramicron, its inside excites generation hole-electron pair owing to absorbing luminous energy, i.e. photo-generated carrier, then move to rapidly its surface and activate by the oxygen that adsorbs and moisture, producing the hydroxyl radical free radical (OH) of strong oxidizing property and superoxide anion free radical (O2-) its reaction mechanism as shown in Figure 2:
4, redox: when the hydroxyl radical free radical (OH) of strong oxidizing property, superoxide anion free radical (O2-), ozone and the living radical of organic gas are rolled into a ball and contacted, utilize its Strong oxdiative reproducibility, C-C key, C-H key, C-N key and C-O key etc. in direct bombardment cracking organic exhaust gas, complete a series of redox reaction, finally generate the innocuous gas such as CO2, H2O.
In the present embodiment; each ultraviolet lamp tube 141 includes the uviol lamp 1412 of quartz glass tubing 1411 and refractory ceramics; uviol lamp 1412 is placed in quartz glass tubing 1411, and the inwall of quartz glass tubing 1411 is coated with protective layer (figure does not illustrate).This tubing be made up of quartz glass has extremely low thermal coefficient of expansion, high temperature tolerance, fabulous chemical stability, excellent electrical insulating property, low and stable ultrasonic delay performance, best saturating ultraviolet spectra performance and thoroughly visible ray and near infrared spectrum performance, and have the mechanical performance higher than simple glass, the ultraviolet better effects if of the outer Alto spot pipe 14 of this purple being therefore; Its high-temperature resistant result of uviol lamp 1412 that high temperature ceramic material is made is better, makes the Treatment by Photocatalysis Oxidation better effects if of this waste gas.The two ends of each quartz glass tubing 1411 are all connected in process pipeline 11 by flange 15; And the ultraviolet that each uviol lamp 1412 sends contains the ultraviolet light of 184.9nm wavelength period.Certainly; the mounting means of ultraviolet lamp tube 141 in process pipeline 11 is not limited in this case; can also be by clamping, other mounting means such as be spirally connected; as long as the embodiment of ultraviolet lamp tube 141 at process pipeline 11 internal fixtion can be realized; all belong to the simple deformation to this case or conversion, fall in the protection domain of this case.
In the present embodiment, photodestruciton catalytic unit 14 in process pipeline 11 has two-stage at least, and spacing between every adjacent two-stage photodestruciton catalytic unit 14 is identical, and spacing in every grade of photodestruciton catalytic unit 14 between ultraviolet lamp tube 141 with catalyst gauze 142 is also identical.Adopt multi-stage light cracking and catalyzing device 14, the waste gas that if previous stage has not processed in processing procedure, the photodestruciton catalytic unit that can flow to rear stage processes, and which effectively avoids insufficient degraded of waste gas, reaches exhaust-gas treatment effect thoroughly.Waste gas is one or more in ammonia, hydrogen sulfide, methyl mercaptan, benzene, styrene, carbon disulfide, trimethylamine.Certainly, waste gas can also be some need such as methyl sulfide, the third ethene waste gas to be processed.
Advantage of the present utility model is:
1) set up filter and photodestruciton catalytic unit, and photodestruciton catalytic unit comprises ultraviolet lamp tube and catalyst gauze, in this design, the particle in waste gas can be tackled by filter, thus the follow-up technique of guarantee equipment can stablize normal operation;
2) energy that ultraviolet lamp tube has directly can destroy the chemical bond of organic gas molecule, makes it the living radical group that cracking forms free state, thus increases the reactivity of organic gas molecule; Simultaneously by the oxygen in ultraviolet light cracking mixing air, make it the free oxygen atom of formation and combine to generate ozone, to reach the effect of photodestruciton;
3) catalyst gauze can move to rapidly its surface and activate by the oxygen that adsorbs and moisture, to reach the effect of photochemical catalytic oxidation;
4) because photodestruciton catalytic unit is multipolarity design, make to process in next stage at the waste gas of the non-photodestruciton catalysis of previous stage, to avoid there is untreated waste gas in process pipeline, to reach the sufficient effect of degraded;
5) the utility model has use safety, exhaust-gas treatment is complete, degraded is fully thorough and treatment effeciency high.
Be only several specific embodiment of the present utility model above, but the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (4)
1. a photochemical catalytic oxidation waste gas treatment equipment, is characterized in that, comprise exhaust piping, process pipeline and new feed channel, described exhaust piping is communicated with new feed channel by process pipeline; Described process pipeline is provided with the filter for being tackled by the particle in waste gas near one end of exhaust piping, and between filter with new feed channel, be installed on the multistage photodestruciton catalytic unit be connected successively in this process pipeline, waste gas in exhaust piping obtains harmless new gas successively after filter and the process of multi-stage light cracking and catalyzing device, and this harmless new gas is delivered in air by new feed channel; Every grade of photodestruciton catalytic unit includes the waste gas after to filtration to carry out the ultraviolet lamp tube of photodestruciton and carries out light-catalysed catalyst gauze to the waste gas after photodestruciton; Each ultraviolet lamp tube includes the uviol lamp of quartz glass tubing and refractory ceramics, and described uviol lamp is placed in quartz glass tubing, and the inwall of quartz glass tubing is coated with protective layer; The surface of each catalyst gauze is coated with Nano titanium dioxide ultramicron.
2. photochemical catalytic oxidation waste gas treatment equipment according to claim 1, is characterized in that, the two ends of each quartz glass tubing all by flange connect in process pipeline; And the ultraviolet that each uviol lamp sends contains the ultraviolet light of 184.9nm wavelength period.
3. photochemical catalytic oxidation waste gas treatment equipment according to claim 1, it is characterized in that, photodestruciton catalytic unit in described process pipeline has two-stage at least, and spacing between every adjacent two-stage photodestruciton catalytic unit is identical, and spacing in every grade of photodestruciton catalytic unit between ultraviolet lamp tube with catalyst gauze is also identical.
4. photochemical catalytic oxidation waste gas treatment equipment according to claim 1, is characterized in that, described waste gas is one or more in ammonia, hydrogen sulfide, methyl mercaptan, benzene, styrene, carbon disulfide, trimethylamine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095737.6U CN204637981U (en) | 2015-02-11 | 2015-02-11 | Photochemical catalytic oxidation waste gas treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095737.6U CN204637981U (en) | 2015-02-11 | 2015-02-11 | Photochemical catalytic oxidation waste gas treatment equipment |
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| CN204637981U true CN204637981U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520095737.6U Expired - Fee Related CN204637981U (en) | 2015-02-11 | 2015-02-11 | Photochemical catalytic oxidation waste gas treatment equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029904A (en) * | 2020-03-11 | 2020-04-17 | 常州纵慧芯光半导体科技有限公司 | AlGaAs epitaxial layer illumination oxidation method |
-
2015
- 2015-02-11 CN CN201520095737.6U patent/CN204637981U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029904A (en) * | 2020-03-11 | 2020-04-17 | 常州纵慧芯光半导体科技有限公司 | AlGaAs epitaxial layer illumination oxidation method |
| CN111029904B (en) * | 2020-03-11 | 2020-07-03 | 常州纵慧芯光半导体科技有限公司 | AlGaAs epitaxial layer illumination oxidation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20190211 |