CN111686580A - Microwave electrodeless discharge ultraviolet waste gas treatment device - Google Patents
Microwave electrodeless discharge ultraviolet waste gas treatment device Download PDFInfo
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- CN111686580A CN111686580A CN202010715726.9A CN202010715726A CN111686580A CN 111686580 A CN111686580 A CN 111686580A CN 202010715726 A CN202010715726 A CN 202010715726A CN 111686580 A CN111686580 A CN 111686580A
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- 239000002912 waste gas Substances 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 37
- 239000010815 organic waste Substances 0.000 claims abstract description 29
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 25
- 239000011941 photocatalyst Substances 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 15
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- 229910000497 Amalgam Inorganic materials 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003610 charcoal Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 abstract description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
Images
Classifications
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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
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
-
- 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
- B01D53/88—Handling or mounting catalysts
- B01D53/885—Devices in general for catalytic purification of waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
-
- 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
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
-
- 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
- B01D2259/806—Microwaves
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Toxicology (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a microwave electrodeless discharge ultraviolet waste gas treatment device, which belongs to the technical field of waste gas treatment and comprises a microwave generator, a base, a fan, a shell, an electrodeless low-pressure mercury lamp, a photocatalyst plate and a carbon box; the shell and the fan are fixed above the base, the shell is provided with an air inlet and an air outlet, catalyst cylinders are arranged at the positions of the air inlet and the air outlet, and the photocatalyst plate and the electrodeless low-pressure mercury lamp are arranged in the shell at intervals; the carbon box is arranged at one end close to the air outlet and used for adsorbing a small amount of undecomposed organic waste gas and repeatedly decomposing the organic waste gas, and the fan is positioned at the air outlet and used for guiding the gas to flow out of the shell; the invention adopts the cooperation of microwave, ultraviolet ray and photocatalyst to effectively decompose organic waste gas molecules, and the residual organic waste gas molecules are adsorbed by the carbon box, so that the decomposition is more thorough.
Description
Technical Field
The invention relates to the technical field of organic waste gas treatment equipment, in particular to a microwave electrodeless discharge ultraviolet waste gas treatment device.
Background
At present, for organic waste gas treatment, an ultraviolet catalytic oxidation technology is mainly utilized to decompose organic waste gas, microwaves and a photocatalyst plate are adopted to be matched with ultraviolet rays for decomposition, so that the decomposition rate and effect can be greatly improved, and the organic waste gas is decomposed into harmless water and carbon dioxide; however, a small amount of residual organic waste gas is discharged directly without decomposition, and the treatment of the prior art solution is slightly insufficient for such residual organic waste gas.
Disclosure of Invention
The technical purpose is as follows: aiming at the defects of the prior art, the invention discloses a microwave electrodeless discharge ultraviolet waste gas treatment device which can effectively absorb residual organic waste gas molecules and carry out double decomposition.
The technical scheme is as follows: in order to achieve the technical purpose, the invention adopts the following technical scheme:
a microwave electrodeless discharge ultraviolet waste gas treatment device comprises a base, a shell, a carbon box, a microwave generator, and ultraviolet tubes and photocatalyst plates which are alternately arranged in the shell; the shell is fixed on the base, the upper part and the lower part of the shell are respectively provided with an air inlet and an air outlet, and a fan is arranged at the position of the air outlet of the shell and used for promoting the flow of organic waste gas.
Catalyst cylinders are arranged at the air inlet and the air outlet, air holes are arranged on the catalyst cylinders, and nano Tio is coated on the surfaces of the catalyst cylinders2The organic waste gas is beneficial to flowing and the catalysis is fully carried out; the charcoal box is fixed at one end provided with the air outlet.
Preferably, a vertical mounting plate and a horizontal bracket are arranged in the shell, the horizontal bracket is made of ceramic or plastic materials and is installed in the shell at equal intervals and used for supporting the photocatalyst plates and the carbon box, a group of electrodeless low-pressure mercury lamps is arranged between adjacent photocatalyst plates, the electrodeless low-pressure mercury lamps are fixedly installed on the inner side of the vertical mounting plate, the microwave generator is installed on the outer side surface of the vertical mounting plate and located below each group of electrodeless low-pressure mercury lamps, and the carbon box is fixed below the last group of electrodeless low-pressure mercury lamps.
Preferably, the catalyst cylinder is made of aluminum material, so that the catalyst cylinder and the shell form a closed microwave field while the organic waste gas is communicated.
Preferably, the lamp tube of the electrodeless low-pressure mercury lamp is a quartz tube with the diameter of 19mm, the load of the tube wall is reduced, the service life of the lamp tube is prolonged, the amalgam is used inside to overcome the temperature rise light attenuation and ensure that the lamp tube is always in the highest UVC emission state, and the stainless steel lamp holder is adopted to protect the amalgam and prevent the amalgam from volatilizing in the heating state.
Preferably, the photocatalyst plate is a honeycomb ceramic photocatalyst plate, and the surface of the photocatalyst plate is coated with nano Tio2。
When the microwave electrodeless discharge ultraviolet waste gas treatment device provided by the invention is used, a microwave generator and a fan are started, organic waste gas enters from a gas inlet, is broken by a microwave ultrahigh frequency electromagnetic field and cuts molecular bonds to form smaller molecules, the smaller molecules are further oxidized and decomposed into water and carbon dioxide through an ultraviolet ray and photocatalyst plate, a small amount of residual organic waste gas is absorbed by a carbon box, an electrodeless low-pressure mercury lamp above the carbon box can further decompose the residual organic waste gas, and finally harmless gas is discharged out of a shell through the fan at a gas outlet.
Has the advantages that: the invention uses the cooperation of microwave, ultraviolet ray and photocatalyst plate, and can catalyze organic waste gas efficiently; the carbon box absorbs the residual organic waste gas and further decomposes the organic waste gas, so that the organic waste gas is treated more thoroughly, and the residual amount is small; the catalyst cylinder increases the contact area with the organic waste gas and improves the catalytic effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a rear view of the present invention;
FIG. 4 is a side cross-sectional view of the housing of the present invention;
FIG. 5 is a perspective view of a catalyst cylinder of the present invention;
FIG. 6 is a front view of the photocatalyst plate of the present invention;
wherein, 1-a base, 2-a shell, 3-a carbon box, 4-a electrodeless low-pressure mercury lamp, 5-a photocatalyst plate, 6-a microwave generator and 7-a fan;
201-air inlet, 202-air outlet, 203-catalyst cylinder, 204-vertical mounting plate, 205-horizontal bracket.
Detailed Description
The present invention will be more clearly and completely described below by way of a preferred embodiment in conjunction with the accompanying drawings, without thereby limiting the scope of the invention to the described embodiment.
As shown in fig. 1 and fig. 2, the microwave electrodeless discharge ultraviolet waste gas treatment device provided by the invention comprises a base 1, a shell 2, a carbon box 3, an electrodeless low-pressure mercury lamp 4, a photocatalyst plate 5, a microwave generator 6 and a fan 7; the shell 2 and the fan 7 are fixed above the base 1, the electrodeless low-pressure mercury lamps 4 and the photocatalyst plates 5 are installed in the shell 2 at intervals, the microwave generator 6 is used for generating a high-frequency microwave field with the frequency of 2450 MHz, and the carbon box 3 is fixed in the shell 2 and is positioned below the last group of electrodeless low-pressure mercury lamps 4.
An air inlet 201 and an air outlet 202 are respectively arranged at the upper part and the lower part of the shell 1, catalyst cylinders 203 are respectively arranged at the air inlet 201 and the air outlet 202, the catalyst cylinders 203 are made of aluminum materials, and form a closed microwave cavity with the shell 2; the surface is coated with nano Tio2The air holes are arranged on the periphery of the catalyst, so that the catalyst is beneficial to full contact catalysis with organic waste gas, and the catalytic effect is improved; the blower 7 is connected to the air outlet 202.
A vertical mounting plate 204 for mounting the electrodeless low-pressure mercury lamp 4 and a horizontal bracket 205 for supporting the photocatalyst plate 5 are also arranged in the shell 1, and the horizontal bracket 205 is made of ceramic or plastic; the microwave generator 6 is fixed on the outer side surface of the vertical mounting plate 204 and is positioned below each group of electrodeless low-pressure mercury lamps 4; the electrodeless low-pressure mercury lamp 4 is made of quartz tubes, the diameter of the quartz tubes is 19mm, and the stainless steel lamp holder is used for protecting the amalgam inside, so that the amalgam is prevented from being reduced due to heating volatilization, and the emission state is prevented from being influenced.
When the microwave/low-pressure mercury lamp photocatalyst is used, the microwave generator 6 and the fan 7 are started, organic waste gas enters the shell 2 from the air inlet 201 under the action of the fan 7, small molecules are formed by breaking and cutting molecular bonds of a microwave ultrahigh-frequency electromagnetic field, and the nano Tio on the photocatalyst plate 5 is irradiated while the electrodeless low-pressure mercury lamp 4 breaks the bonds of the small molecules2Generates a large amount of hydroxyl oxidation groups-HO and electron hole pairs to play a stronger role in catalytic oxidation,finally, the organic waste gas is decomposed into harmless water and carbon dioxide, a small amount of residual organic waste gas is absorbed by the carbon box 3, and the residual organic waste gas is decomposed again by the electrodeless low-pressure mercury lamp 4 above the carbon box 3 and finally discharged out of the shell.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (8)
1. A microwave electrodeless discharge ultraviolet waste gas treatment device is characterized in that: comprises a base (1), a shell (2), a carbon box (3) for absorbing residual organic waste gas, an electrodeless low-pressure mercury lamp (4), a photocatalyst plate (5) and a microwave generator (6); the shell (2) is fixed above the base (1), the upper portion and the lower portion of the shell (2) are respectively provided with the air inlet (201) and the air outlet (202), the charcoal box (3) is installed inside the shell (2) and fixed at one end close to the air outlet (202), and the electrodeless low-pressure mercury lamp (4) and the photocatalyst plate (5) are installed inside the shell (2).
2. The microwave electrodeless discharge ultraviolet waste gas treatment device as claimed in claim 1, wherein: the gas inlet (201) and the gas outlet (202) are both provided with catalyst cylinders (203), and the catalyst cylinders (203) are provided with gas holes for gas circulation; the base (1) is further provided with a fan (7), and the fan (7) is connected with the air outlet (202).
3. The microwave electrodeless discharge ultraviolet waste gas treatment device as claimed in claim 1, wherein: set up vertical mounting panel (204) and horizontal bracket (205) in casing (2), horizontal bracket (205) and casing (2) and vertical mounting panel (204) fixed connection, equal interval distribution in casing (2), photocatalyst board (5) are located horizontal bracket (205) top, set up electrodeless low pressure mercury lamp (4) between adjacent photocatalyst board (5), fix and be located casing one side vertical mounting panel (204), microwave generator (6) are fixed at the lateral surface of vertical mounting panel (204), are located the below of every electrodeless low pressure mercury lamp (4) of group, a set of electrodeless low pressure mercury lamp (4) that are used for decomposing remaining organic waste gas are installed to charcoal case (3) top.
4. The microwave electrodeless discharge ultraviolet waste gas treatment device as claimed in claim 3, wherein: the horizontal bracket (205) and the vertical mounting plate (204) are made of ceramic or plastic materials.
5. The microwave electrodeless discharge ultraviolet waste gas treatment device as claimed in claim 1, wherein: the microwave frequency of the microwave generator (6) is 2450 MHz.
6. The microwave electrodeless discharge ultraviolet waste gas treatment device as claimed in claim 1, wherein: the lamp tube of the electrodeless low-pressure mercury lamp (4) is a quartz tube with the diameter of 19mm, and the lamp cap is made of stainless steel.
7. The microwave electrodeless discharge ultraviolet waste gas treatment device as defined in claim 6, wherein: the electrodeless low-pressure mercury lamp (4) uses amalgam.
8. The microwave electrodeless discharge ultraviolet waste gas treatment device as claimed in claim 1, wherein: the photocatalyst plate (5) is a honeycomb ceramic photocatalyst plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010715726.9A CN111686580A (en) | 2020-07-23 | 2020-07-23 | Microwave electrodeless discharge ultraviolet waste gas treatment device |
| PCT/CN2020/104994 WO2022016565A1 (en) | 2020-07-23 | 2020-07-28 | Microwave electrodeless discharging ultraviolet exhaust gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010715726.9A CN111686580A (en) | 2020-07-23 | 2020-07-23 | Microwave electrodeless discharge ultraviolet waste gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111686580A true CN111686580A (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010715726.9A Pending CN111686580A (en) | 2020-07-23 | 2020-07-23 | Microwave electrodeless discharge ultraviolet waste gas treatment device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111686580A (en) |
| WO (1) | WO2022016565A1 (en) |
Citations (10)
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| CN206027444U (en) * | 2016-09-05 | 2017-03-22 | 苏州宝典环保科技有限公司 | Photocatalysis organic waste gas purifying system |
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| CN210495916U (en) * | 2019-04-04 | 2020-05-12 | 陕西青朗万城环保科技有限公司 | Microwave electrodeless ultraviolet waste gas treatment device |
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2020
- 2020-07-23 CN CN202010715726.9A patent/CN111686580A/en active Pending
- 2020-07-28 WO PCT/CN2020/104994 patent/WO2022016565A1/en active Application Filing
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| CN206027444U (en) * | 2016-09-05 | 2017-03-22 | 苏州宝典环保科技有限公司 | Photocatalysis organic waste gas purifying system |
| JP2018143636A (en) * | 2017-03-08 | 2018-09-20 | 国立大学法人九州大学 | Reaction tube and air purification device |
| CN207591590U (en) * | 2017-11-20 | 2018-07-10 | 北京万向新元环保工程技术有限公司 | A kind of compound photodegradation-oxidation equipment |
| CN207970701U (en) * | 2017-12-29 | 2018-10-16 | 中山市巨川环保设备有限公司 | A kind of waste gas purification apparatus |
| CN108392981A (en) * | 2018-05-08 | 2018-08-14 | 陕西青朗万城环保科技有限公司 | A kind of ozone abater |
| CN208694709U (en) * | 2018-06-11 | 2019-04-05 | 闽南师范大学 | A kind of photochemical catalytic oxidation equipment |
| CN208786131U (en) * | 2018-09-07 | 2019-04-26 | 望都县君荣铸造有限公司 | A kind of moulding machine emission-control equipment |
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| Publication number | Publication date |
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| WO2022016565A1 (en) | 2022-01-27 |
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