CN112807994A - Nano absorption treatment device for air treatment - Google Patents
Nano absorption treatment device for air treatment Download PDFInfo
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- CN112807994A CN112807994A CN202110073636.9A CN202110073636A CN112807994A CN 112807994 A CN112807994 A CN 112807994A CN 202110073636 A CN202110073636 A CN 202110073636A CN 112807994 A CN112807994 A CN 112807994A
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 84
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- 238000001816 cooling Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000110 cooling liquid Substances 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 36
- 238000009826 distribution Methods 0.000 claims description 18
- 239000004408 titanium dioxide Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 7
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000004887 air purification Methods 0.000 description 2
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 1
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- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
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Images
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
- B01D53/34—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
-
- 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
Abstract
The invention provides a nano absorption treatment device for air treatment, which solves the problems that the catalytic environment condition is difficult to control and the volume is large and the market use is difficult to satisfy in the traditional photocatalysis device, and comprises a structure that a plurality of porous metal plates in the shape of membranes are distributed annularly, so that one side surface of each porous metal plate inclines towards the center, a plurality of porous metal plates are integrated to form an area which is distributed annularly for the porous metal plate, the effective temperature reduction of the porous metal plates is realized by utilizing the lower temperature of cooling liquid in a cooling bin in the purification process, when the device works, the surface temperature of the porous metal plates is lower than the external environment temperature because the contact area between the porous metal plates and the cooling bin is large, when the air in the external environment is slowly pumped to the surface of the porous metal plates by an exhaust fan, a small amount of water film formed by condensed water is formed on the surface of the porous metal plates, the fabrication forms a humidity environment catalyzed by the semiconductor nanomaterials.
Description
Technical Field
The invention relates to a photocatalysis device, in particular to a nano absorption treatment device for air treatment.
Background
The nano semiconductor material has good photocatalysis effect, and is also called as photocatalyst technology. Specifically, the nanoparticles attached to the effective medium are irradiated by a specific light source to react with oxygen in the surrounding water and air to generate strong oxidation. The organic pollutants and part of inorganic pollutants in air or water are photolyzed and eliminated at room temperature, and are directly decomposed into harmless and tasteless substances, and cell walls of bacteria can be destroyed to kill the bacteria, so that the treatment and sterilization of sewage and waste gas are realized.
TiO2Is an N-type semiconductor material whose band structure is discontinuous, typically consisting of a low-level Valence Band (VB) filled with electrons and an empty high-level Conduction Band (CB), separated by a forbidden band. TiO 22When the film is irradiated by human light with energy larger than or equal to the forbidden bandwidth, namely light with the wavelength smaller than or equal to 387.5nm, electrons on the valence band are excited and enter a conduction band to generate high-energy electrons (e-) and holes (h +), and the electrons and the holes are separated and respectively transferred to TiO under the action of an electric field2Different positions on the surface of the particles and adsorbed on the TiO2OH-, H of the surface2O and O2A series of reactions occur to generate high-activity free radicals, which are adsorbed on TiO2The organic matter and partial inorganic matter on the surface of the particles undergo oxidation-reduction reaction to finally generate CO2、H2O and some harmless inorganic ions.
Therefore, the titanium dioxide used as the catalyst has a very wide application prospect in air treatment, but the titanium dioxide has extremely low visible light catalytic efficiency when the photocatalyst is used, so that great technical difficulty exists in the application of the titanium dioxide. In recent years, in order to realize a high catalytic effect of titanium dioxide under visible light irradiation, many scholars and institutions have invested great efforts in research on modified titanium dioxide, for example, means of adding metal oxides, rare earth elements, and the like, but the effect has been very small.
The existing device for realizing the photocatalyst effect by loading titanium dioxide particles on a porous carrier has difficulty in how to realize the collection of the porous carrier in a smaller space and how to improve and maintain the titanium dioxide catalytic effect of the porous carrier all the time.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention firstly provides the nano absorption treatment device for air treatment, so as to solve the problems that the traditional photocatalysis device is difficult to control the catalysis environmental condition and large in size and is difficult to meet the market use.
The technical scheme is that the titanium dioxide composite membrane comprises a plurality of porous metal plates in a membrane shape, wherein the porous metal plates are distributed annularly, one side surface of each porous metal plate is inclined towards a structure at the center, the porous metal plates are gathered to form an area which is distributed annularly for one porous metal plate, three-dimensional communicated pores are arranged on each porous metal plate, and the pores are configured to deposit metatitanic acid by a chemical precipitation method and form a titanium dioxide particle layer attached to the surface of each porous metal plate by calcination; the other side surface of each porous metal plate and the inner side surface of the shell are surrounded to form a plurality of spaced cavities for arranging the condensing device; the ultraviolet lamp also comprises a rod-shaped UV light source positioned at the center of the annular area of the porous metal plates, and a structure that each porous metal plate receives ultraviolet irradiation through the side face obliquely facing to the annular center is realized; the shell isolates the porous metal plate and the UV light source from the outside; the shell is provided with an air inlet and an air outlet for air to enter and exit, and the air inlet is configured to comprise an extraction fan for forcing air to enter; and each cavity forms a sealing structure for containing cooling liquid, and forms a water film structure formed by condensed water formed on the surface of each porous metal plate by air.
In the above or some embodiments, each of the expanded metal plates has a rectangular structure, and ends of adjacent expanded metal plates facing the center are intersected and fixedly connected, and an included angle facing the outside direction forms a space structure of a cavity.
In the above or some embodiments, the condensing device further includes a distribution bin of an annular structure located above each cavity, the distribution bin is configured with an annular cavity for storing liquid, and further includes a liquid distribution port communicated with each cavity, and further includes a liquid filling port located at one side or an upper end of the distribution bin, and further includes a cooling bin integrally formed with an inner side surface of the housing and matching with a space formed by an included angle between each adjacent porous metal plate, the cooling bin is used for storing cooling liquid, and an outer wall of the cooling bin is in close contact with an outer side surface of the porous metal plate at a corresponding position.
In the foregoing or some embodiments, the UV light source is a linear light source, and includes a cylindrical lamp tube made of a transparent material, and a base located at a lower end of the lamp tube, where the base is located and fixed at a bottom position in the housing, and the base is located below the porous metal plate array.
In the above or some embodiments, the base is connected to the casing through a grille, the casing is fixedly sleeved to the lower end of the casing, and the exhaust fan is located below the base and fixedly connected to the base.
In the above or some embodiments, a heat conduction layer made of a heat conduction material is filled between each porous metal plate and the outer wall of the cooling bin.
In the above or some embodiments, a cylindrical fixing rod is arranged at the center inside the cylindrical lamp tube, and a plurality of UV lamp beads are uniformly distributed in a ring shape on the outer circumferential surface of the cylindrical fixing rod; the cylindrical lamp tube is characterized by further comprising a top seat positioned at the upper end of the cylindrical lamp tube, the top seat is positioned at the center of the distribution bin, an upper cover is further covered at the upper end of the shell, and a boss used for being in compression joint with the top seat is arranged at the lower end of the upper cover.
In the above or some embodiments, the heat insulation layer is located outside the shell, and is filled with a material, and the outer shell is used for fixing the thin layer at the outer side face of the shell.
According to the scheme, the air purification function is realized by utilizing the photocatalysis property of the nano semiconductor, the effective cooling of the porous metal plate is realized by utilizing the lower temperature of the cooling liquid in the cooling bin in the purification process, the cooling liquid is preferably liquid with larger specific heat capacity, the temperature of the liquid in the cooling liquid can be kept lower than the temperature of the external environment due to the protection of a heat-insulating layer, when the device works, the surface temperature of the porous metal plate is also lower than the temperature of the external environment due to the large contact area between the porous metal plate and the cooling bin, and when air in the external environment is slowly pumped to the surface of the porous metal plate through the pumping fan, a small amount of water film formed by condensed water can be formed on the surface of the porous metal plate, so that a humidity environment catalyzed by the semiconductor nano material; when the device is used, the multi-hole metal plates are irradiated by adopting fewer UV light sources, so that the problems of large size and high requirement on the UV light sources of the traditional equipment are greatly reduced; and the device can be directly catalyzed by adopting the UV light source, the problem of ultraviolet leakage is not needed to be worried about, and the purification process is quieter and more efficient.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic view of a collection of the medium porous metal plates of the present invention.
FIG. 4 is a schematic view of the structure of the expanded metal according to the present invention.
Fig. 5 is an enlarged schematic view of a portion a of fig. 1.
Detailed Description
The following detailed description is made with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Those of ordinary skill in the art will recognize that the directional terms "upper," "lower," "outer," "inner," etc., are used in a descriptive sense with respect to the figures and are not intended to limit the scope of the claims.
The gas purifier comprises a shell 400, wherein the upper end of the shell 400 is provided with a gas outlet 402 for purified gas, and the gas purifier further comprises a gas inlet 401 positioned at the lower end of the shell 400. In one embodiment as shown in fig. 2, the adjacent expanded metal plates 101 are arranged in a ring shape in a tail-to-tail manner, specifically, the adjacent expanded metal plates 101 form a common end which intersects at a position close to the center of the ring-shaped area, and a cavity facing the inner side of the casing 400 is formed between the adjacent expanded metal plates 101 and is formed along the length of the adjacent expanded metal plates 101, and a polygonal line surface structure inclined to the center of the ring-shaped area 100 is formed facing the adjacent expanded metal plates 101, and the side of the expanded metal plate 101 at the position is used for receiving the irradiation of the UV light source 300 at the center; the folded surface facing the inner side of the casing 400 is formed, the folded surface is in close contact with the outer wall of the cooling bin 204 through the heat conduction layer 205 to form a structure that the cooling bin 204 cools the porous metal plate 101, and the heat conduction material of the heat conduction layer 205 can be selected from metal copper and other materials with good heat conduction. For further convenience of arrangement of the cooling chamber 204, the cooling chamber 204 and the housing 400 may be integrally formed.
The distribution bin 201, in the above or some embodiments, the condensing device 200 further includes a distribution bin 201 of an annular structure above each cavity, the distribution is configured to be provided with an annular cavity for storing liquid, a liquid distribution port 202 communicated with each cavity, and a liquid filling port 203 at one side or an upper end of the distribution bin 201, and a cooling bin 204 is used for storing cooling liquid; the distribution chamber 201 is composed of
In the above or some embodiments, the UV light source 300 is a line-shaped light source, and includes a cylindrical lamp tube 301 made of a transparent material, and a base 302 located at the lower end of the lamp tube 301, wherein the base 302 is located at the bottom position in the housing 400 and fixed, and the base 302 is located below the array of porous metal plates 101.
In the above or some embodiments, the base 302 passes through the sleeve 303 for grid connection, the sleeve 303 is fixedly sleeved on the lower end of the housing 400, and the exhaust fan 500 is located below the base 302 and fixedly connected to the base 302.
In the above reaction process, in order to maintain the catalytic efficiency of the titanium dioxide, the surface humidity of the titanium dioxide must be maintained, and the smooth proceeding of the above reaction is further maintained, and the air inlet 401 is configured to include a heating device 300 for heating the passing air, and the heating device 300 heats the passing air so as to more stably realize the condensed water film on the surface of the porous metal plate 101. Heating device still includes specifically is used for the parcel heating resistor's heat conduction end, heating resistor, heat conduction end are located the bottom of UV light source, heat conduction end fixed connection with by the heat conduction material for example metal copper make base terminal surface department.
The porous metal plate 101 is configured to support titania, wherein the three-dimensionally connected structure thereof is specifically a titania-supported structure. An upper fixing ring 102 and a lower fixing ring for fixing the assembly of the expanded metal 101 are further included, and the upper and lower fixing rings are positioned at an inner periphery of the annular region 100 formed by the plurality of expanded metal 101 and are fixedly connected to the respective expanded metal 101. In the method for realizing the loading of the titanium dioxide, firstly, a seepage casting method is adopted, and sodium chloride with the crystal size within the range of 1.5-3mm is adopted as a casting template, namely a pore-forming agent, and is specifically arranged in a seepage casting mold; then preheating the mold filled with the pore-forming agent, and casting the aluminum alloy in a molten state in the preheated mold; then pressurizing the die to realize that the aluminum alloy in a molten state flows in the three-dimensional gap formed by the pore-forming agent; and then, after the casting is finished and the casting is cooled, taking out the object A formed by the solidified aluminum alloy solid with the pore-forming agent. Grinding the upper surface and the lower surface of the object A to obtain a layer material B in the object A, then placing the layer material B in an aqueous solution, and melting a pore-forming agent to finally obtain the porous metal plate 101 with uniform three-dimensional intercommunicating pores, wherein the porous metal plate 101 is in a membrane shape.
The porous metal plate 101 manufactured as described above is fixed to the outer peripheral surface of the rotating shaft 204 by welding, so as to form a region where the porous metal plate 101 is concentrated, and three-dimensionally connected pores are provided in each porous metal plate 101. In the process of loading titanium dioxide, tetrabutyl titanate and absolute ethyl alcohol are mixed to obtain a solution A, a glacial acetic acid aqueous solution B with the pH value of 5 is prepared, then a porous metal plate 101 in a membrane shape is immersed in the solution B, the solution A is gradually dripped into the solution B while the solution B is stirred until a pale yellow solution C appears, the solution C is heated in a water bath at the temperature of 40 ℃ to obtain a gel D, at the moment, the porous metal plate 101 in the gel D is taken out and dried, the dried porous metal plate 101 is calcined at the temperature of 450 ℃, and finally the titanium dioxide film formed and coated in three-dimensional communication holes of the porous metal plate 101 is obtained. Because the porous metal plate 101 is immersed in the precursor solution before gelation, titanium dioxide ions can be ensured to be uniformly filled in the three-dimensional communicating holes formed by the porous metal plate 101 in the whole sol and gel process, and the uniform coating of the three-dimensional communicating holes is realized. The titanium dioxide film of the three-dimensional intercommunicated pores of the prepared porous metal plate 101 is more completely and uniformly formed, and has better catalytic effect.
The UV light source 300 is characterized in that in the above or some embodiments, a cylindrical fixing rod 304 is arranged at the inner center of the cylindrical lamp tube 301, and a plurality of UV lamp beads 305 are uniformly distributed at the outer circumferential surface of the cylindrical fixing rod 304 in a ring shape; the lamp tube distribution device further comprises a top seat positioned at the upper end of the cylindrical lamp tube 301, the top seat is positioned at the center of the distribution bin 201, an upper cover 403 is further covered at the upper end of the shell 400, and a boss 404 for crimping the top seat is arranged at the lower end of the upper cover 403. The UV lamp bead 305 is powered by a power supply.
According to the scheme, the air purification function is realized by utilizing the photocatalysis property of the nano semiconductor, the effective cooling of the porous metal plate is realized by utilizing the lower temperature of the cooling liquid in the cooling bin in the purification process, the cooling liquid is preferably liquid with larger specific heat capacity, the temperature of the liquid in the cooling liquid can be kept lower than the temperature of the external environment due to the protection of a heat-insulating layer, when the device works, the surface temperature of the porous metal plate is also lower than the temperature of the external environment due to the large contact area between the porous metal plate and the cooling bin, and when air in the external environment is slowly pumped to the surface of the porous metal plate through the pumping fan, a small amount of water film formed by condensed water can be formed on the surface of the porous metal plate, so that a humidity environment catalyzed by the semiconductor nano material; when the device is used, the multi-hole metal plates are irradiated by adopting fewer UV light sources, so that the problems of large size and high requirement on the UV light sources of the traditional equipment are greatly reduced; and the device can be directly catalyzed by adopting the UV light source, the problem of ultraviolet leakage is not needed to be worried about, and the purification process is quieter and more efficient.
Claims (8)
1. A nanometer absorption treatment device for air treatment comprises a plurality of annular areas (100) formed by annularly distributing a plurality of porous metal plates (101) in a membrane shape, a structure that one side of each porous metal plate (101) inclines towards the center, and three-dimensionally communicated pores are arranged on each porous metal plate (101), wherein the pores are configured to deposit metatitanic acid by a chemical precipitation method and form a titanium dioxide particle layer attached to the surface of each porous metal plate (101) by calcination; the other side surface of each porous metal plate (101) and the inner side surface of the shell (400) enclose a plurality of cavities for arranging the condensing devices (200) at intervals; the UV light source (300) is positioned at the center of the annular area (100) of the porous metal plate (101) and is of a rod-shaped structure, and a structure that each porous metal plate (101) receives ultraviolet radiation through a side face obliquely facing to the annular center is realized; the shell (400) isolates the porous metal plate (101) and the UV light source (300) from the outside; the shell (400) is provided with an air inlet (401) and an air outlet (402) for air to enter and exit, and the air inlet (401) is configured to comprise an extraction fan (500) for forcing air to enter; each of the condensing devices (200) is configured to cool each of the porous metal plates, and is configured such that air forms a water film made of condensed water on the surface of each of the porous metal plates (101).
2. The nano absorption treatment device for air treatment according to claim 1, wherein each porous metal plate (101) is a rectangular structure, and the ends of the adjacent porous metal plates (101) facing to the center are intersected and fixedly connected, and the included angle facing to the outside direction forms a space structure of the cavity.
3. The nano absorption treatment device for air treatment according to claim 2, wherein the condensing device (200) further comprises a distribution bin (201) of an annular structure above each cavity, the distribution bin is configured with an annular cavity for storing liquid, a liquid distribution port (202) communicated with each cavity, a liquid filling port (203) at one side or the upper end of the distribution bin (201), and a cooling bin (204) matched with a space formed by an included angle between each adjacent porous metal plate (101) and integrally formed with the inner side of the shell (400), the cooling bin (204) is used for storing cooling liquid, and the outer wall of the cooling bin (204) is in close contact with the outer side of the porous metal plate (101) at the corresponding position.
4. The nano-absorption treatment device for air treatment according to claim 3, wherein the UV light source (300) is a linear light source comprising a cylindrical lamp tube (301) made of transparent material, and further comprising a base (302) at the lower end of the lamp tube (301), the base (302) is fixed at the bottom position in the housing (400), and the base (302) is located under the array of the porous metal plates (101).
5. The nano absorption treatment device for air treatment according to claim 4, wherein the base (302) is connected with a sleeve (303) through a grating, the sleeve (303) is fixedly sleeved with the lower end of the shell (400), and the exhaust fan (500) is positioned below the base (302) and fixedly connected with the base (302).
6. The nano absorption treatment device for air treatment according to any one of claims 3, 4 and 5, wherein a heat conduction layer (205) made of heat conduction material is filled between each porous metal plate (101) and the outer wall of the cooling bin (204).
7. The nano-absorption treatment device for air treatment as claimed in claim 5, wherein a cylindrical fixing rod (304) is arranged at the inner center of the cylindrical lamp tube (301), and a plurality of UV lamp beads (305) are uniformly distributed in a ring shape at the outer circumferential surface of the cylindrical fixing rod (304); the lamp tube is characterized by further comprising a top seat positioned at the upper end of the cylindrical lamp tube (301), the top seat is positioned at the center of the distribution bin (201), an upper cover (403) is further covered at the upper end of the shell (400), and a boss (404) used for being in compression joint with the top seat is arranged at the lower end of the upper cover (403).
8. The nano-absorption treatment device for air treatment according to claim 6, further comprising an insulating layer (405) located outside the housing (400), the insulating layer (405) being filled with a material, and an outer housing (406) fixing the thin layer at an outer side of the housing (400).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073636.9A CN112807994A (en) | 2021-01-20 | 2021-01-20 | Nano absorption treatment device for air treatment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110073636.9A CN112807994A (en) | 2021-01-20 | 2021-01-20 | Nano absorption treatment device for air treatment |
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| CN112807994A true CN112807994A (en) | 2021-05-18 |
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| JP2005152507A (en) * | 2003-11-28 | 2005-06-16 | Kanazawa Univ Tlo Inc | Gaseous contamination material removing apparatus and gaseous contamination material removing method |
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