CN110170244B - Light-emitting device packing tower - Google Patents
Light-emitting device packing tower Download PDFInfo
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- CN110170244B CN110170244B CN201910606972.8A CN201910606972A CN110170244B CN 110170244 B CN110170244 B CN 110170244B CN 201910606972 A CN201910606972 A CN 201910606972A CN 110170244 B CN110170244 B CN 110170244B
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- 238000012856 packing Methods 0.000 title claims description 31
- 239000000945 filler Substances 0.000 claims abstract description 30
- 239000012295 chemical reaction liquid Substances 0.000 claims description 15
- 239000011521 glass Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 239000012495 reaction gas Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 4
- 238000007789 sealing Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000006303 photolysis reaction Methods 0.000 abstract 1
- 230000015843 photosynthesis, light reaction Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006552 photochemical reaction Methods 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
-
- 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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biomedical Technology (AREA)
- Toxicology (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The filler tower of the luminescent device is different from the traditional ultraviolet photolysis system in that spherical, short tubular and special-shaped luminescent devices with densely distributed protrusions on the surface are used as the filler in the filler tower, and the luminescent device is densely packed and excited by microwaves to emit light, so that the reactive gas and the liquid directly contact with the surface of the luminescent device, the proportion of the surface area of the luminescent device in the space of the filler tower is increased to the maximum extent, the surface of the luminescent device becomes a main reaction interface, and higher reaction efficiency is obtained.
Description
Technical Field
A light emitting device packed tower. A filler spray tower using a light emitting device as a filler.
Background
The spray packing tower is a chemical device commonly used for gas and liquid exchange, the top end of the tower is provided with a spray device for spraying liquid, the bottom is sprayed with gas, and the liquid and the gas reversely flow. The inside of the column is filled with a packing to increase the contact area of gas and liquid. This is a well-established technique that is commonly used in applications. Wherein the used filler is made of various materials such as metal, ceramic, glass and the like; the shape of the ring is spherical, ring-shaped, sheet-shaped or special-shaped, such as Raschig ring, pall ring … …, and the ring is in the form of integral and loose piles. Fillers made with catalysts are also useful.
Except for the catalyst, all the fillers only act as an interface for gas and liquid exchange, and seldom participate in the exchange process.
In recent years, technology of treating gas and liquid by ultraviolet rays has appeared, free radicals are generated by photochemical reaction, molecular structures are resolved by oxidation, reaction speed and depth are increased, and pollutants are decomposed.
However, these techniques also only utilize the light effect, the distance between the light emitting devices is large, at least 10-50 mm, the surface area of the light emitting device occupies a small portion of the whole reaction space, and the interface function of gas-liquid contact of the surface of the light emitting device itself is not well utilized. Moreover, since the intensity of light is inversely proportional to the square of the distance from the light source, the intensity of the light at the surface of the light device is much greater and the optimal reaction site is the surface of the light emitting device, increasing the specific gravity of the surface area of the light emitting device in a packed tower or photochemical reaction apparatus is of great importance.
Disclosure of Invention
The idea of the invention is as follows: since the surface of the light-emitting device is inevitably in direct contact with the reaction gas and the reaction liquid, the surface of the light-emitting device is used as an interface of gas and liquid contact as much as possible, the contact area of the light-emitting device and the reaction medium is increased as much as possible, and when the contact area is increased to the maximum extent, the light-emitting device is directly used as a filler in a middle-filler tower, therefore, the invention provides a filler tower scheme using the light-emitting device as the filler.
The light-emitting device packing tower is characterized in that: the filling material for the ultraviolet light emitting device is prepared by using ultraviolet light transmitting glass to prepare a hollow spherical body, or using ultraviolet light transmitting glass to prepare a closed short pipe, or using ultraviolet light transmitting glass to prepare a hollow polygon, or using ultraviolet light transmitting glass to prepare a hollow special-shaped body, and filling inert gas into the hollow special-shaped body.
In order to further increase the surface area of the spherical light emitting device and the short tubular light emitting device, increase the reaction area while increasing the gap between the fillers, reduce the resistance of the filler tower, the spherical light emitting device or the tubular light emitting device are each made into densely-packed convex surfaces.
Filling the light emitting device filler into a tower-shaped container or densely stacking the light emitting device filler into the tower-shaped container, and stacking the light emitting device filler stacks to form a light emitting device filler tower, wherein the light emitting devices in the light emitting device filler tower are in close contact with each other, and gaps among the light emitting device fillers are channels of reaction liquid and reaction liquid; the outer wall of the packing tower is provided with a microwave generator, and a waveguide tube guides microwave beams to the packing of the light emitting device; when the light-emitting device filling tower works, reaction liquid is sprayed out from the top of the filling tower and flows downwards along gaps among the light-emitting device filling materials and the surfaces of the light-emitting device filling materials; distributed on the surface of all the light-emitting device fillers; the reaction gas is sprayed out from the bottom of the packing tower, moves upwards along the gaps among the luminescent device packing and the surfaces of the luminescent device packing, is distributed on the surfaces of all the luminescent device packing, and the reaction liquid and the reaction gas are contacted on the surfaces of the luminescent device packing; meanwhile, the microwave device works, under the action of microwaves, the light-emitting device filler emits ultraviolet light to participate in the photochemical process between the reaction liquid and the reaction gas.
The light-emitting device filler is a hollow spherical body made of ultraviolet light-transmitting glass, the diameter of the hollow spherical body is 20-100 mm, and the wall thickness of the hollow spherical body is 2-5 mm; the surface is smooth or densely covered with columnar bulges or hemispherical bulges or conical bulges.
The light-emitting device filler is a closed short pipe made of ultraviolet light-transmitting glass, the diameter of the closed short pipe is 10-100 mm, the length of the closed short pipe is 20-100 mm, and the wall thickness of the closed short pipe is 1-5 mm. The surface is smooth or densely covered with columnar bulges or hemispherical bulges or conical bulges.
The microwave beam generated by the microwave generator is sent to the inside of the ultraviolet light emitting device filling pile through the waveguide tube.
Drawings
Fig. 1 is a schematic view of an example of a packing tower for a light emitting device of the present invention. In the figure, (1) is a reaction liquid ejection head; (2) is a packed column shell; (3) a light emitting device filler and a light emitting device filler stack; (4) a microwave generator; (5) is a waveguide; (6) a reaction liquid tank; (7) a reaction gas inlet pipe.
Detailed description of the preferred embodiments
A small device for treating nitric oxide is characterized in that the diameter of a packed tower is 300mm, the height of the packed tower is 500mm, the packing of an ultraviolet light emitting device is spherical, the diameter of the packed tower is 40mm, the total power of microwaves is 1 kilowatt, reaction liquid is ammonium persulfate or hydrogen peroxide, the concentration of nitric oxide is 800mg/m, the flow rate is 100 m/h, and the treatment result is 6 mg/m.
A small device for treating VOC gas has a packing tower diameter of 300mm, a packing height of 500mm, a spherical packing of 40mm, a total microwave power of 1 kilowatt, no reaction liquid, a concentration of 800mg/m and a flow rate of 100 m/h, and a treatment result of 15 mg/m.
Claims (4)
1. The light-emitting device packing tower is characterized in that: the method comprises the steps of manufacturing a hollow spherical body with densely distributed bulges on the surface by using ultraviolet-light-transmitting glass, or manufacturing a sealing short pipe with densely distributed bulges on the surface by using ultraviolet-light-transmitting glass, or manufacturing a hollow polygonal body with densely distributed bulges on the surface by using ultraviolet-light-transmitting glass, or manufacturing a hollow special-shaped body with densely distributed bulges on the surface by using ultraviolet-light-transmitting glass, and filling inert gas into the hollow special-shaped body to prepare a filler of a light-emitting device; filling the light-emitting device filling material into a tower-shaped container or densely stacking the light-emitting device filling material into the tower-shaped container, and stacking to form a light-emitting device filling material stack, wherein the light-emitting device filling material stack and the tower-shaped container together form a light-emitting device filling tower; the light emitting devices in the light emitting device packing tower are in close contact with each other, and gaps between the light emitting device packing are channels of reaction liquid and reaction liquid; the outer wall of the packing tower is provided with a microwave generator, and a waveguide tube guides microwave beams to the packing of the light emitting device; when the light-emitting device filling tower works, reaction liquid is sprayed out from the top of the filling tower and flows downwards along gaps among the light-emitting device filling materials and the surfaces of the light-emitting device filling materials; distributed on the surface of all the light-emitting device fillers; the reaction gas is sprayed out from the bottom of the packing tower, moves upwards along the gaps among the luminescent device packing and the surfaces of the luminescent device packing, is distributed on the surfaces of all the luminescent device packing, and the reaction liquid and the reaction gas are contacted on the surfaces of the luminescent device packing; meanwhile, the microwave device works, under the action of microwaves, the light-emitting device filler emits ultraviolet light to participate in the photochemical process between the reaction liquid and the reaction gas.
2. The light-emitting device packing tower according to claim 1, wherein the light-emitting device packing is a hollow sphere with densely-packed protrusions on the surface, which is made of ultraviolet-light-transmitting glass, and has a diameter of 20-100 mm and a wall thickness of 2-5 mm; the outer surface of the hollow cylinder is smooth, columnar bulges are densely distributed, hemispherical bulges are densely distributed, or conical bulges are densely distributed.
3. The light-emitting device packing tower according to claim 1, wherein the light-emitting device packing is a closed short pipe with densely packed protrusions on the surface, which is made of ultraviolet light-transmitting glass, and has a diameter of 10-100 mm, a length of 20-100 mm, and a wall thickness of 1-5 mm, and the outer surface is either smooth, or densely packed with columnar protrusions, or densely packed with hemispherical protrusions, or densely packed with conical protrusions.
4. The light emitting device fill tower of claim 1, wherein a microwave beam generated by said microwave generator is directed through said waveguide into said light emitting device fill stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606972.8A CN110170244B (en) | 2019-07-06 | 2019-07-06 | Light-emitting device packing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606972.8A CN110170244B (en) | 2019-07-06 | 2019-07-06 | Light-emitting device packing tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110170244A CN110170244A (en) | 2019-08-27 |
| CN110170244B true CN110170244B (en) | 2023-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910606972.8A Active CN110170244B (en) | 2019-07-06 | 2019-07-06 | Light-emitting device packing tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN110170244B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112121616A (en) * | 2020-09-09 | 2020-12-25 | 华中科技大学 | Flue gas multi-pollutant purification device for coupling microwave ultraviolet light with hydrogen peroxide |
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| CN110170244A (en) | 2019-08-27 |
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Effective date of registration: 20230724 Address after: B608, Shenzhen Industry University Research Base Building, Huazhong University of Science and Technology, No. 9, Yuexing Third Road, High tech Zone Community, Yuehai Street, Nanshan District, Shenzhen, Guangdong 518000 Applicant after: GUANGDONG FENGHE PURIFICATION ENGINEERING Co.,Ltd. Address before: 518000 b801, platform building of Key Laboratory of Virtual University Park, No. 1, Yuexing Second Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen, Guangdong Province Applicant before: Fenghe clean (Shenzhen) new material technology Co.,Ltd. |
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