CN110882624A - Photo-oxygen catalytic waste gas purifier - Google Patents
Photo-oxygen catalytic waste gas purifier Download PDFInfo
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- CN110882624A CN110882624A CN201811047563.0A CN201811047563A CN110882624A CN 110882624 A CN110882624 A CN 110882624A CN 201811047563 A CN201811047563 A CN 201811047563A CN 110882624 A CN110882624 A CN 110882624A
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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
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
- B01D53/8603—Removing sulfur compounds
- B01D53/8612—Hydrogen sulfide
-
- 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
- B01D53/8621—Removing nitrogen compounds
- B01D53/8634—Ammonia
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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
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/91—Bacteria; Microorganisms
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Toxicology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a photo-oxidation catalytic waste gas purifier, and relates to the technical field of industrial waste gas purification. The novel ozone purifier comprises a purifier body, a primary filtering unit, a C-band ultraviolet device, an ozone generator and a filtering unit, wherein the primary filtering unit is installed at a waste gas inlet of the purifier body and is made of activated carbon fiber cotton, the filtering unit is installed at a purified gas outlet of the purifier body, and the C-band ultraviolet device and the ozone generator are installed between the primary filtering unit and the filtering unit. The invention has the advantages of good purification effect, high purification efficiency, low cost, good practicability, no toxic or side effect on human bodies, environmental protection, no pollution and easy popularization and use.
Description
Technical Field
The invention relates to the technical field of industrial waste gas purification, in particular to a photo-oxidation catalytic waste gas purifier.
Background
At present, with the development of industrial economy and technology, industrial production modes are more and more diversified, waste gas is inevitably discharged in industrial production and processing, and the waste gas discharged by industry contains a large amount of various harmful gases, such as: ammonia, trimethylamine, hydrogen sulfide, methylthiohydrogen, methyl mercaptan, methyl sulfide, butyl acetate, ethyl acetate, dimethyldisulfide, carbon disulfide and styrene, sulfide H2S, VOC, benzene, toluene, xylene, etc., which are harmful to human health and affect the environment.
The waste gas purifier is mainly used for purifying waste gas generated in the processes of production, processing, manufacturing, cleaning, maintenance and the like of industrial equipment, the existing purifying equipment generally still adopts the traditional air purifying treatment modes such as ozone and the like, so that the content of harmful substances in the industrial waste gas is reduced to the environmental protection emission standard, but the purifying treatment method has higher cost, still has harmful elements to be discharged into air and a clean water source, has harm to the surrounding environment, has toxic and side effects on a human body, has low purifying efficiency and poor purifying effect, and cannot meet the requirement of purifying the industrial waste gas. Based on this, it is especially necessary to design a novel photo-oxidation catalysis exhaust gas purifier.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a photo-oxidation catalysis waste gas purifier which is simple in structure, reasonable in design, good in purification effect, high in purification efficiency, low in cost, good in practicability, free of toxic and side effects on a human body, environment-friendly, free of pollution and easy to popularize and use.
In order to achieve the purpose, the invention is realized by the following technical scheme: photo-oxidation catalysis exhaust gas purifier, including clarifier body, primary filter unit, C wave band ultraviolet device, ozone generator, filter unit, the primary filter unit is installed to the waste gas import department of clarifier body, and filter unit is installed in the purified gas exit department of clarifier body, installs C wave band ultraviolet device, ozone generator between primary filter unit and the filter unit.
Preferably, the primary filter unit is made of activated carbon fiber cotton, and a plasma device can be optionally arranged on the rear side of the primary filter unit.
Preferably, the filter unit adopts a PM2.5 filter screen.
Preferably, the purifier body is arranged on the bracket, the purifier body is fixedly connected with the bracket, and the purifier body is hermetically connected with the exhaust pipelines at two ends.
Preferably, the temperature of the exhaust gas entering the purifier body from the exhaust gas inlet is controlled below about 60 ℃.
Preferably, the front end of the purifier body is provided with a water spraying degradation device which can degrade large particles in the organic waste gas, so that the internal cleanliness and service life of the purifier are ensured, and the maintenance time is prolonged.
The invention has the beneficial effects that: (1) the purification effect is good, the purification efficiency is high, the environment is protected, no pollution is caused, and the requirement on industrial waste gas purification is met.
(2) The air purifier is nontoxic and free of any side effect, exceeds the traditional air purifier such as ozone and the like, can continuously sterilize and remove dust in the environment with people in the field, has no toxic or side effect on human bodies, can widely intercept and kill various bacteria in the air, has the killing rate of more than 99.9 percent on legionella bacteria, staphylococcus aureus, bacillus subtilis, black variant spores and natural bacteria, effectively removes inhalable particles and achieves the cleanliness of 1-10 ten thousand grades.
(3) Eliminate the peculiar smell of the pollution harmful gas, and has low cost, good practicability and wide application prospect.
Drawings
The invention is described in detail below with reference to the drawings and the detailed description;
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1, the following technical solutions are adopted in the present embodiment: photo-oxidation catalysis exhaust gas purifier, including clarifier body 1, filter unit 2 just, C wave band ultraviolet device 3, ozone generator 4, filter unit 5, filter unit 2 is just installed to 6 departments of waste gas import of clarifier body 1, filter unit 2 just adopts activated carbon fiber cotton, filter unit 5 is installed to 7 departments of purified gas export of clarifier body 1, filter unit 5 adopts the PM2.5 filter screen, install C wave band ultraviolet device 3 between filter unit 2 just and the filter unit 5, ozone generator 4.
It is worth noting that the temperature of the waste gas entering from the waste gas inlet 6 at the left side of the purifier body 1 needs to be controlled below 60 ℃ to ensure the purification effect and the service life of the equipment, and the front end of the purifier body 1 is provided with a water spraying degradation device which can degrade large particles in the organic waste gas, thereby ensuring the cleanness and the service life of the interior of the purifier and prolonging the maintenance time; when the purifier body 1 is installed on the support, the purifier body needs to be tightly connected with the support, and the connection between the purifier body and the exhaust pipelines at two ends needs to be sealed.
In the embodiment, after waste gas discharged by industrial equipment enters a purifier body 1 through a waste gas inlet 6, the waste gas firstly enters a primary filtering unit 2 to remove large pollution particles and most harmful elements in the waste gas, a plasma device 8 can be selectively arranged at the rear side of the primary filtering unit 2 according to the use condition, the pretreated waste gas enters an electric field, and dust in the waste gas can be effectively removed through crushing, decomposition and adsorption of a high-voltage electric field, meanwhile, the harmful gas is eliminated by combining C-band ultraviolet rays and ozone by utilizing the principle of combining a pulse corona discharge adsorption technology, wherein the C-band ultraviolet rays are mainly used for removing decomposition and fission of gases such as hydrogen sulfide, ammonia, benzene, toluene, xylene, formaldehyde, ethyl acetate, ethane, acetone, urethane, resin and the like, so that organic matters are changed into inorganic compounds, the air purification efficiency is improved, and a filtering unit 5 arranged at the right end of the equipment can filter the residual waste gas, the purification quality is improved, and cleaner air is discharged.
The specific embodiment utilizes high-energy high-ozone UV light beam to irradiate the waste gas, so as to crack the molecular chain structure of the industrial waste gas, and the molecular chain of the organic or inorganic high-molecular malodorous compound is degraded and converted into low-molecular compound, such as CO, under the irradiation of the high-energy UV light beam2、H2O, etc.; the high-energy high-ozone UV light beam is utilized to decompose oxygen molecules in the air to generate free oxygen, namely active oxygen, and the free oxygen needs to be combined with the oxygen molecules because positive and negative electrons carried by the free oxygen are unbalanced, so that ozone is generated. UV + O2→ O- + O (active oxygen); o + O2→O3(ozone), ozone has extremely strong oxidizing action on organic matters, and has instant effect of removing industrial waste gas and other irritant odor. After industrial waste gas is input into the purification equipment by utilizing the exhaust equipment, the purification equipment utilizes high-energy UV ultraviolet light beams and ozone to carry out a synergistic decomposition oxidation reaction on the industrial waste gas, so that the industrial waste gas is degraded and converted into low molecular compounds, water and carbon dioxide,then the air is exhausted outdoors through an exhaust pipeline; the molecular bond of bacteria in the industrial waste gas is cracked by high-energy UV light beams, nucleic acid (DNA) of the bacteria is destroyed, and then oxidation reaction is carried out by ozone, so that the purposes of purifying and killing the bacteria are thoroughly achieved.
The specific implementation mode can effectively eliminate the peculiar smell of the polluted harmful gas, the primary electrons are accelerated in the electric field and impact oxygen molecules in the air, when the energy exceeds the ionization potential of the oxygen molecules, the oxygen molecules are quickly ionized, and the oxygen molecules losing electrons are changed into positive-polarity oxygen ions (O)2(+) of the electron and the released electron is combined with another neutral oxygen molecule to become a negative oxygen ion (O)2-) resulting in two-stage differentiation of oxygen ions and adsorption of neutral oxygen molecules to form O2+、O2-、O2The ion group aggregated by the iso-oxygen has strong oxidizability, and can oxidize and decompose harmful components in the polluted air into harmless products and water in a short time; o is2+e(3.6eV)→·O+O； H2O+e(5.09eV)→·OH+HO+·OH→·OH2The research shows that: the oxidation potential (2.8eV) of active free radical OH is 35% higher than that (2.07eV) of ozone with strong oxidability, the reaction speed of OH free radical and organic matter is several orders of magnitude higher, and the reaction of OH free radical to oxidized pollutant is nonselective, and can initiate chain reaction to directly oxidize most harmful substances in polluted air into carbon dioxide and water or mineral matter. The action mechanism is as follows:
H2S+·OH→HS+H2O
HS+O2+O2＋+O2－→SO3+H2O
NH3·OH→NH2+H2O
NH2+O2+O2＋+O2→→NOX+H2O
CH2O+ O2＋+O2→+·OH→H·COOH+H2O
practice proves that most harmful substances in polluted air with a certain concentration can be oxidized and decomposed within a short time, and the conversion rate is above 90% on average.
The structure of the specific implementation mode is more reasonable, and the device can be installed indoors or outdoors, but enough space is provided for maintenance and repair; in addition, the equipment is periodically maintained and cleaned once for one to three months according to the use condition, the box body of the purifier is reliably grounded, the ultraviolet tube is not allowed to collide in the installation process, foreign matters are strictly prevented from falling into the purifier, the equipment is externally connected with a 380V power supply, the processing air quantity is 3000m for each hour, and the purifier is widely applied to the industries of kraft pulp, oil refining, coking, petrifaction, coal gas, excrement processing, pharmacy, pesticides, synthetic resin, synthetic fiber, rubber, nitrogen fertilizer, nitric acid, coking, excrement processing, meat processing, aquatic product processing, food ingredients, essence, livestock product processing, leather, bone glue, paint, solvents, printing ink printing, garbage processing, medicine and the like, and has wide application prospect.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. Light oxygen catalysis exhaust gas purifier, a serial communication port, including clarifier body (1), just strain unit (2), C wave band ultraviolet device (3), ozone generator (4), filter unit (5), exhaust gas inlet (6) department of clarifier body (1) installs and just strains unit (2), filter unit (5) are installed in purified gas outlet (7) department of clarifier body (1), just strain and install C wave band ultraviolet device (3) between unit (2) and filter unit (5), ozone generator (4).
2. A photo-oxygen catalytic waste gas purifier as claimed in claim 1, wherein the primary filter unit (2) is provided with a plasma device (8) at the rear side thereof.
3. The photo-oxidation catalytic waste gas purifier as claimed in claim 1, wherein the primary filter unit (2) is made of activated carbon fiber cotton.
4. A photo-oxygen catalytic waste gas purifier as claimed in claim 1, characterized in that said filter unit (5) employs a PM2.5 filter screen.
5. The photo-oxidation catalytic waste gas purifier as claimed in claim 1, wherein the purifier body (1) is mounted on a bracket, the purifier body (1) is tightly connected with the bracket, and the purifier body (1) is hermetically connected with the exhaust ducts at two ends.
6. The photo-oxidation catalytic waste gas purifier as claimed in claim 1, wherein the temperature of the waste gas entering the purifier body (1) from the waste gas inlet (6) is controlled at 60 ℃, so that the purifying effect and the service life of the equipment are ensured.
7. The photo-oxidation catalytic waste gas purifier as claimed in claim 1, wherein the front end of the purifier body (1) is provided with a water spray degradation device capable of degrading large particles in organic waste gas, so as to ensure the cleanness and service life of the interior of the purifier and prolong the maintenance time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047563.0A CN110882624A (en) | 2018-09-10 | 2018-09-10 | Photo-oxygen catalytic waste gas purifier |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006134149A1 (en) * | 2005-06-15 | 2006-12-21 | Brandenburgische Technische Universität Cottbus | Method and system for photocatalytically cleaning air and waste water |
| CN205925438U (en) * | 2016-08-19 | 2017-02-08 | 宁波市嘉隆节能环保科技有限公司 | Light oxygen catalytic purification device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006134149A1 (en) * | 2005-06-15 | 2006-12-21 | Brandenburgische Technische Universität Cottbus | Method and system for photocatalytically cleaning air and waste water |
| CN205925438U (en) * | 2016-08-19 | 2017-02-08 | 宁波市嘉隆节能环保科技有限公司 | Light oxygen catalytic purification device |
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Application publication date: 20200317 |