CN104607040A - Dynamic waste gas purification device adopting photo-catalytic oxidation - Google Patents
Dynamic waste gas purification device adopting photo-catalytic oxidation Download PDFInfo
- Publication number
- CN104607040A CN104607040A CN201510029373.6A CN201510029373A CN104607040A CN 104607040 A CN104607040 A CN 104607040A CN 201510029373 A CN201510029373 A CN 201510029373A CN 104607040 A CN104607040 A CN 104607040A
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- China
- Prior art keywords
- waste gas
- photocatalyst
- dispersion liquid
- gas purification
- purification apparatus
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- 239000002912 waste gas Substances 0.000 title claims abstract description 83
- 238000000746 purification Methods 0.000 title claims abstract description 56
- 230000003647 oxidation Effects 0.000 title claims abstract description 16
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 16
- 230000001699 photocatalysis Effects 0.000 title abstract description 9
- 239000011941 photocatalyst Substances 0.000 claims abstract description 89
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 239000006185 dispersion Substances 0.000 claims abstract description 49
- 238000003860 storage Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims description 24
- 230000003287 optical effect Effects 0.000 claims description 17
- 230000003197 catalytic effect Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000000889 atomisation Methods 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract 5
- 238000007146 photocatalysis Methods 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- -1 hydroxyl radical free radical Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Catalysts (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a dynamic waste gas purification device adopting photo-catalytic oxidation. The device is characterized by comprising a waste gas blower, a photocatalyst dispersion liquid storage tank, a photocatalyst circulating pump, a photocatalyst spraying device, gas-water rectifying devices and ultraviolet light sources, wherein the photocatalyst dispersion liquid storage tank is located at the bottom of the waste gas purification device, and a liquid level control device is arranged in the dispersion liquid storage tank and monitors the liquid level in the storage tank; the photocatalyst dispersion liquid storage tank is connected with the photocatalyst circulating pump and conveys the dispersion liquid to the photocatalyst spraying device under the action of the circulating pump; the photocatalyst spraying device is located at the top of the waste gas purification device and is responsible for spraying and atomizing the dispersion liquid; the gas-water rectifying devices are connected below the photocatalyst spraying device and used for sufficiently mixing the photocatalyst dispersion liquid and waste gas; the ultraviolet light sources for exciting a photocatalyst are arranged in the gas-water rectifying devices. The waste gas purification device is simple in structure and high in purification efficiency, and can simultaneously meet demands of household and industrial applications.
Description
Technical field
The present invention relates to a kind of waste gas purification apparatus, particularly relate to a kind of dynamic optical catalytic oxidation waste gas purification apparatus.
Background technology
Current air contaminant treatment industry is a lot of to the method for the complicated organic matter process that organic matter, oxynitrides and itself and many inorganic matter chelatings derive from, and comprises masking method, chemical washing method, biodegradation, physical absorption, Production by Catalytic Combustion Process and with O
3the high-level oxidation technology that oxidizing process, photocatalysis etc. are representative, wherein photocatalysis technology is because of non-secondary pollution, and efficiency is high and actively praised highly.
So-called photocatalysis technology, be exactly that photocatalyst is under the irradiation of light, the electronics of valence band excite by light quantum, transit to conduction band and form free electron, and the hole of positively charged is formed in valence band, utilize the electron-hole pair produced, the hydroxyl radical free radical (OH) becoming oxidability extremely strong in water in medium or oxygen catalytic and ultra-oxygen anion free radical (O
2), active oxygen (HO
2, H
2o
2) etc., traditionally these groups with extremely strong oxidability are called optical active group, the energy equivalence of these optical active groups, can the various organic compound with unstable chemical bond of potent decomposition in the high temperature of 3600K, and the hydrogen contained by it and carbon are become water and carbon dioxide.
Clean owing to possessing, efficient performance, photocatalysis technology is at purification of air and air contaminant treatment, build antifouling process, household (office) Comprehensive Treatment of Pollution, the automobile exhaust pollution comprehensive regulation, the pollution of industrial discharge, all kinds of place antibacterial, antifouling, there is extraordinary application in the fields such as deodorizing.But photocatalysis technology also exists some problems, on the one hand photocatalyst (as titanium dioxide) exists with solid state, contacts to belong to gas-solid two and contact with pernicious gas, and contact area is little and contact probability is also very little, and its air purification efficiency is low; On the other hand, in order to improve purification efficiency, meeting the requirement of mass disposal waste gas, needing to add multiple optical catalyst module, device structure is complicated, is unfavorable for realizing suitability for industrialized production.
Summary of the invention
In order to solve the problems of the prior art; the object of this invention is to provide a kind of energy-efficient dynamic optical catalytic oxidation waste gas purification apparatus; effectively solve the dispersion of photocatalyst, attachment issue; increase the touch opportunity of photocatalyst and light source and waste gas; photochemical catalytic oxidation efficiency is greatly improved; and waste gas purification apparatus structure of the present invention is simple, be convenient to realize scale application.
To achieve these goals, the technical solution used in the present invention: a kind of dynamic optical catalytic oxidation waste gas purification apparatus, comprise the exhaust gas entrance be arranged on below waste gas purification apparatus and the clean gas outlet be arranged on above waste gas purification apparatus, it is characterized in that, described waste gas purification apparatus also comprises waste gas pressure fan, photocatalyst dispersion liquid storage tank, photocatalyst circulating pump, photocatalyst spray equipment, air water fairing and ultraviolet light source; Described waste gas pressure fan is positioned at the side of described waste gas purification apparatus, is responsible for pretreated waste gas to send in waste gas purification apparatus; Described photocatalyst dispersion liquid storage tank is positioned at the bottom of described waste gas purification apparatus, is provided with fluid level control device in described photocatalyst dispersion liquid storage tank, the liquid level in Real-Time Monitoring photocatalyst dispersion liquid storage tank; Described photocatalyst dispersion liquid storage tank is connected with photocatalyst circulating pump, by the effect of photocatalyst circulating pump, photocatalyst dispersion liquid is sent into photocatalyst spray equipment; Described photocatalyst spray equipment is positioned at the top of waste gas purification apparatus, is provided with photocatalyst spray atomizer in described photocatalyst spray equipment, is responsible for carrying out atomization process to photocatalyst dispersion liquid; Be connected with air water fairing below described photocatalyst spray equipment, realize fully mixing of photocatalyst dispersion liquid and waste gas; Described air water fairing inside is provided with the ultraviolet light source of exciting light catalyst.
Wherein, described waste gas purification apparatus is also provided with waste gas distribution apparatus, and described waste gas distribution apparatus is between photocatalyst dispersion liquid storage tank and air water fairing.
As preferably, described air water fairing is at least three grades.
As preferably, described photocatalyst dispersion liquid is the aqueous solution of titanium dioxide.
By waste gas pressure fan, pretreated waste gas is sent into waste gas purification apparatus, waste gas enters air water fairing after waste gas distribution apparatus is uniformly distributed, the photocatalyst dispersion liquid being arranged in photocatalyst dispersion liquid storage tank is thus lifted to photocatalyst spray equipment through the effect of photocatalyst circulating pump, through spray atomizing, enter air water fairing under gravity, photocatalyst dispersion liquid fully mixes in air water fairing with waste gas; Be provided with ultraviolet light source in air water fairing, ultraviolet exciting light catalyst, by the optical active group that the water in waste gas purification apparatus or oxygen catalytic become oxidability extremely strong, organic compound in waste gas decomposition, realizes purification object.In addition, in order to ensure that photocatalyst dispersion liquid is in optium concentration all the time, waste gas purification apparatus of the present invention is provided with fluid level control device in photocatalyst dispersion liquid storage tank, the liquid level in real time in monitoring storage tank, supplements in time because of the moisture evaporated or reaction loss is run off.
In sum, photocatalyst dispersion liquid is carried out spray atomizing process by dynamic optical catalytic oxidation waste gas purification apparatus of the present invention, adds the touch opportunity of photocatalyst and ultraviolet and waste gas, and photocatalyst dispersion liquid is dynamic simultaneously, cyclically use, drastically increase photocatalysis efficiency.Waste gas purification apparatus structure of the present invention is simple, and purification efficiency is high, can meet the demand of family expenses and industrial application simultaneously.
Accompanying drawing explanation
The present invention is further described below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of dynamic optical catalytic oxidation waste gas purification apparatus of the present invention.
Detailed description of the invention
As shown in Figure 1, a kind of dynamic optical catalytic oxidation waste gas purification apparatus, comprise the exhaust gas entrance be arranged on below waste gas purification apparatus and the clean gas outlet be arranged on above waste gas purification apparatus, it is characterized in that, described waste gas purification apparatus also comprises waste gas pressure fan 1, photocatalyst dispersion liquid storage tank 2, photocatalyst circulating pump 3, photocatalyst spray equipment 4, air water fairing 5 and ultraviolet light source 6; Waste gas pressure fan 1 is positioned at the side of waste gas purification apparatus, is responsible for pretreated waste gas to send in waste gas purification apparatus; Photocatalyst dispersion liquid storage tank 2 is positioned at the bottom of described waste gas purification apparatus, is provided with fluid level control device 7 in photocatalyst dispersion liquid storage tank 2, the liquid level in Real-Time Monitoring photocatalyst dispersion liquid storage tank 2; Photocatalyst dispersion liquid storage tank 2 is connected with photocatalyst circulating pump 3, by the effect of photocatalyst circulating pump 3, photocatalyst dispersion liquid is sent into photocatalyst spray equipment 4; Photocatalyst spray equipment 4 is positioned at the top of waste gas purification apparatus, is provided with photocatalyst spray atomizer 8 in photocatalyst spray equipment 4, is responsible for carrying out atomization process to photocatalyst dispersion liquid; Be connected with air water fairing 5 below photocatalyst spray equipment 4, realize fully mixing of photocatalyst dispersion liquid and waste gas; Air water fairing 5 inside is provided with the ultraviolet light source 6 of exciting light catalyst, is also provided with waste gas distribution apparatus 9 in waste gas purification apparatus, and waste gas distribution apparatus 9 is between photocatalyst dispersion liquid storage tank 2 and air water fairing 5.
Waste gas after pretreatment enters waste gas purification apparatus through entrance, be dispersed in waste gas purification apparatus under waste gas distribution apparatus 9 acts on, photocatalyst dispersion liquid is arranged in photocatalyst dispersion liquid storage tank 2, photocatalyst dispersion liquid is risen to photocatalyst spray equipment 4 by photocatalyst circulating pump 3, through spray atomizing process, enter air water fairing 5, be arranged on the ultraviolet light source 6 exciting light catalyst in air water fairing 5, catalytic water or oxygen, produce the optical active group with extremely strong oxidability, organic matter in waste gas decomposition, reaches the effect of purifying exhaust air.
Photocatalyst dispersion liquid is carried out spray atomizing process by dynamic optical catalytic oxidation waste gas purification apparatus of the present invention, add the touch opportunity of photocatalyst and ultraviolet light source and waste gas, photocatalyst dispersion liquid is dynamic simultaneously, uses capable of circulationly, drastically increases photocatalysis efficiency.Waste gas purification apparatus structure of the present invention is simple, and purification efficiency is high, can meet the demand of family expenses and industrial application simultaneously.
Claims (4)
1. a dynamic optical catalytic oxidation waste gas purification apparatus, comprise the exhaust gas entrance be arranged on below waste gas purification apparatus and the clean gas outlet be arranged on above waste gas purification apparatus, it is characterized in that, described waste gas purification apparatus also comprises waste gas pressure fan (1), photocatalyst dispersion liquid storage tank (2), photocatalyst circulating pump (3), photocatalyst spray equipment (4), air water fairing (5) and ultraviolet light source (6);
Described waste gas pressure fan (1) is positioned at the side of described waste gas purification apparatus, is responsible for pretreated waste gas to send in waste gas purification apparatus;
Described photocatalyst dispersion liquid storage tank (2) is positioned at the bottom of described waste gas purification apparatus, is provided with fluid level control device (7), the liquid level in Real-Time Monitoring photocatalyst dispersion liquid storage tank (2) in described photocatalyst dispersion liquid storage tank (2);
Described photocatalyst dispersion liquid storage tank (2) is connected with photocatalyst circulating pump (3), by the effect of photocatalyst circulating pump (3), photocatalyst dispersion liquid is sent into photocatalyst spray equipment (4);
Described photocatalyst spray equipment (4) is positioned at the top of waste gas purification apparatus, is provided with photocatalyst spray atomizer (8) in described photocatalyst spray equipment (4), is responsible for carrying out atomization process to photocatalyst dispersion liquid;
Described photocatalyst spray equipment (4) below is connected with air water fairing (5), realizes fully mixing of photocatalyst dispersion liquid and waste gas;
Described air water fairing (5) inside is provided with the ultraviolet light source (6) of exciting light catalyst.
2. dynamic optical catalytic oxidation waste gas purification apparatus as claimed in claim 1, it is characterized in that, described air water fairing (5) is at least three grades.
3. dynamic optical catalytic oxidation waste gas purification apparatus as claimed in claim 1, it is characterized in that, described waste gas purification apparatus is also provided with waste gas distribution apparatus (9), and described waste gas distribution apparatus (9) is positioned between photocatalyst dispersion liquid storage tank (2) and air water fairing (5).
4. dynamic optical catalytic oxidation waste gas purification apparatus as claimed in claim 1, it is characterized in that, described photocatalyst dispersion liquid is the aqueous solution of titanium dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510029373.6A CN104607040A (en) | 2015-01-21 | 2015-01-21 | Dynamic waste gas purification device adopting photo-catalytic oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510029373.6A CN104607040A (en) | 2015-01-21 | 2015-01-21 | Dynamic waste gas purification device adopting photo-catalytic oxidation |
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| Publication Number | Publication Date |
|---|---|
| CN104607040A true CN104607040A (en) | 2015-05-13 |
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ID=53141846
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510029373.6A Pending CN104607040A (en) | 2015-01-21 | 2015-01-21 | Dynamic waste gas purification device adopting photo-catalytic oxidation |
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| Country | Link |
|---|---|
| CN (1) | CN104607040A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211786A (en) * | 2018-03-23 | 2018-06-29 | 上海映山环保科技有限公司 | A kind of powder photocatalyst organic exhaust gas photocatalytic oxidation device |
| CN110104908A (en) * | 2019-06-12 | 2019-08-09 | 青岛千盛环保科技有限公司 | A kind of hair product waste water efficient denitrification system and efficient denitrification technique |
Citations (3)
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|---|---|---|---|---|
| JP2002338871A (en) * | 2001-05-14 | 2002-11-27 | Shoichi Tojo | Indoor air cleaning method with photocatalyst- containing coating composition |
| CN101590280A (en) * | 2008-05-29 | 2009-12-02 | 北京道顺国际技术开发有限责任公司 | Be provided with the vertical plasma and the photocatalytic air purification device of spray and bubble cleaning |
| CN103316572A (en) * | 2013-07-07 | 2013-09-25 | 合肥工业大学 | Device and method for purifying organic pollutants in gas through heterogeneous catalysis |
-
2015
- 2015-01-21 CN CN201510029373.6A patent/CN104607040A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002338871A (en) * | 2001-05-14 | 2002-11-27 | Shoichi Tojo | Indoor air cleaning method with photocatalyst- containing coating composition |
| CN101590280A (en) * | 2008-05-29 | 2009-12-02 | 北京道顺国际技术开发有限责任公司 | Be provided with the vertical plasma and the photocatalytic air purification device of spray and bubble cleaning |
| CN103316572A (en) * | 2013-07-07 | 2013-09-25 | 合肥工业大学 | Device and method for purifying organic pollutants in gas through heterogeneous catalysis |
Non-Patent Citations (1)
| Title |
|---|
| 茅清希: "《工业通风》", 31 March 1998, 上海：同济大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211786A (en) * | 2018-03-23 | 2018-06-29 | 上海映山环保科技有限公司 | A kind of powder photocatalyst organic exhaust gas photocatalytic oxidation device |
| CN110104908A (en) * | 2019-06-12 | 2019-08-09 | 青岛千盛环保科技有限公司 | A kind of hair product waste water efficient denitrification system and efficient denitrification technique |
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Application publication date: 20150513 |
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