CN101823778B - Continuous photocatalytic reaction device - Google Patents
Continuous photocatalytic reaction device Download PDFInfo
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- CN101823778B CN101823778B CN2010101796937A CN201010179693A CN101823778B CN 101823778 B CN101823778 B CN 101823778B CN 2010101796937 A CN2010101796937 A CN 2010101796937A CN 201010179693 A CN201010179693 A CN 201010179693A CN 101823778 B CN101823778 B CN 101823778B
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- swash plate
- groove
- water tank
- reaction zone
- board
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Abstract
The invention provides a continuous photocatalytic reaction device, which comprises a reaction area, a clean water tank and a sewage tank; the reaction area comprises a casing, an inclined board area located in the centre of the casing and light sources at the two sides of the inclined board area; the inclined board area is composed of vertical boards, an inclined board and a baffle which are in connection; a groove is arranged at one end of the inclined board; the baffle is embedded in the groove on the inclined board; two vertical plates are symmetrically installed, and the opposite surfaces thereof are uniformly provided with an inclined groove and a vertical groove from top to bottom; the inclined board and the baffle are separately embedded in the inclined groove and the vertical groove embedded in the vertical board; a water distributor is set above the inclined board at the uppermost layer and connected with the sewage tank; a water collection groove is set below the inclined board at the lowermost layer and connected with the clean water tank; and photocatalyst is loaded on a glass board in a film form, and the photocatalyst film degrades the pollutants under the effect of visible light. The invention is applicable to the scientific research fields including material engineering, environment engineering and so on.
Description
Technical field
What the present invention relates to is a kind of water treatment device, specifically a kind of photocatalytic reaction device.
Background technology
The research and development of conductor photocatalysis material are the big focuses in the scientific research field, and Chinese scholars has obtained a lot of proud achievements at present, has prepared visible light is utilized the good magnetic photocatalyst of effect.But the research and development of reaction unit, design are less, lag behind the research and development speed of catalyzer far away, are seriously restricting the high-quality Application of Catalyst.
Photocatalytic reaction device is the place of light-catalyzed reaction, and for the research of device, the kind that has had both at home and abroad mainly comprises: 1, fluidized bed photo catalysis reactor drum; 2, liquid film type photo catalysis reactor; 3, quartz tube type photo catalysis reactor, 4, flat-plate reactor etc.The 38th volume the 1st periodical that periodical " application chemical industry " was published in January, 2009 has been stepped on " practical TiO
2The research of photo catalysis reactor ", author Yang Xueling, Xu Yue Hua Erwei have summed up the present Research of photocatalytic reaction device.
Researchist people such as You Hong have developed three phase inner circulation fluidized bed photocatalytic reactor.Reactor drum falls stream district, aeration head composition by quartz socket tube, ultraviolet source, three-phase up-flow district.
The drum-type loaded film photo catalysis reactor of development such as Yin Xiaohong, its method is with TiO
2Load on the rotating cylinder inwall, the liquid that contains the material that is degraded forms thin electrolyte film on the reaction wall of rotation, increased the contact surface between catalyzer, reactant and the photon.
People such as Krysova have designed flat-plate reactor, are processed by the synthetic glass of two ends trough of belt, scribble TiO on the sheet glass
2Particle membrane that is to say that catalyzer is fixed on the poly (methyl methacrylate) plate.Hanging directly over the sheet glass has ultraviolet source, and liquid forms liquid film through overflow on the square plate surface, with the photocatalyst TiO that is activated
2Act on, reach the purpose of degraded.Through to many document inquiries, do not find the reaction unit similar with the present invention.
Summary of the invention
The object of the present invention is to provide a kind of treatment effect good, the utilization ratio of catalyzer is high,, energy consumption is low, the simple and flexible operation continuous photocatalytic reaction device.
The objective of the invention is to realize like this:
It comprises reaction zone, filtered water tank and foul water tank; Foul water tank is set up in the reaction zone top, and filtered water tank is positioned at the reaction zone below; Described reaction zone comprises shell, is positioned at the swash plate district and the light source that is positioned at both sides, swash plate district at shell middle part; Said swash plate district is connected and composed by riser, swash plate, baffle plate, and an end of swash plate has groove, and baffle plate is inlaid in the groove on the swash plate; Riser is two that symmetry is installed; Have equally distributed skewed slot and vertical slot from top to bottom on the relative face of two risers, swash plate and baffle plate are inlaid in respectively in the skewed slot and vertical slot on the riser, and the top of the swash plate of the superiors is provided with water distributor; Water distributor links to each other with foul water tank, and the below of undermost swash plate is provided with receipts tank receipts tank and links to each other with filtered water tank.
The present invention can also comprise:
1, said swash plate is dull and stereotyped, and upper surface is level and smooth, and lower surface is level and smooth and scribble refletorized paint, and swash plate and horizontal direction are 5-6 degree angle.
2, said light source is the 60W fluorescent tube bulb.
3, the transparent thin board of good transmittance is housed between light source and the reaction zone.
4, said swash plate mainly is made up of focussing glass, mirror, photocatalyst film three parts, and mirror is processed after unorganic glass one side plates silverskin.
Characteristics maximum among the present invention are: photocatalyst is carried on the sheet glass with the form of film, photocatalyst film under the visible light effect to contaminant degradation.Its advantage has:
1, photocatalyst is fixed on the swash plate with form of film, has eliminated the recovery link, and energy consumption is low.
2, device can move continuously.
3, sewage flows on swash plate with the state of liquid film, and catalyzer is high to the utilization ratio of light.
4, sample examination is convenient.
The present invention is applicable to scientific research fields such as material engineering, environmental engineering.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of riser;
Fig. 3 is the structural representation of swash plate and baffle plate;
Fig. 4 is the A-A sectional view of Fig. 1.
Embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
The present invention mainly by 20 film carrier swash plates, 20 baffle plates, 2 risers, 4 visible light fluorescent tubes, 1 water distributor, 1 receive parts such as tank, 1 foul water tank, 1 filtered water tank, 2 dividing plates, 4 pillar stiffeners, shell, valve, pipeline and form.One-piece construction is seen accompanying drawing 1.The implication of each symbol is in Fig. 1: the 1-foul water tank; 2,12,13,14-valve; The 3-flowrate control valve; 4-water tank pillar stiffener; The 5-water distributor; The 6-swash plate; The 7-baffle plate; 8-receives tank; The 9-dividing plate; The 10-light source; The 11-shell; The 15-filtered water tank;
1, riser is totally 2, is the poly (methyl methacrylate) plate of complete symmetry, one-sided band groove.Thickness is 6mm, and width is 310mm, highly is 730.Groove comprise two longitudinal flutings parallel to each other 211 and two rows staggered 22.Totally 20 of oblique grooves 22, groove depth is 2.0mm, and width is 2.0mm, and length is 300.0mm.The interior spacing of per two adjacent grooves in the same way is 66.0mm.The longitudinal fluting width is 1.5mm, and the degree of depth is 2.0mm, and the groove outside is 4.0mm to the distance recently.The bottom of oblique groove is apart from riser base 34.0mm bottom.Like Fig. 2.
2, baffle plate is that length is 200.0mm, highly is the common unorganic glass of 1.5mm for 7.5mm, thickness.
3, the film carrier swash plate is made up of photocatalyst film 31, focussing glass 32 and mirror 34.Photocatalyst film 31 is a nano-TiO
2Film.Silverskin 33 is plated on the unorganic glass 35 through silver mirror reaction, becomes mirror 34.The long 300.0mm of whole film carrier swash plate, wide 200.0mm, thick 2.0mm.Upper surface scribbles nanometer photocatalyst film, and the centre is coated with argent.When device was vertically placed, inclined-plane and horizontal direction were 5 ° of angles.Like Fig. 3
When 4, installing, the film carrier swash plate embeds in the oblique groove of two symmetrical risers; 5 li of the longitudinal flutings of baffle plate 6 embedding risers 7.Baffle plate and swash plate are close to, and the slit adopts glass cement bonding.Like Fig. 4
5, the caliber of water distributor is Φ 10.The aperture of posticum is 1.5mm, and pitch of holes is 3.0mm.End distance the first layer swash plate 4mm under the water distributor.
6, light source 2 adopts the 60W fluorescent tube bulb.The outside is furnished with reflection shield 36.Be separated with the good dividing plate of light transmission between light source 2 and the baffle plate 6, be used for intercepting water vapour, with the protection against corrosion light source device.Thin plate is near riser 7.Like Fig. 4.
7, be provided with the receipts tank below the orlop film carrier swash plate and put, exceed the terminal 5mm of this layer swash plate around the groove.The interior dimensions of groove is 310mm * 204mm * 30mm, and the caliber of bottom land rising pipe is DN15.
8, the shell 4 of device and the cover plate on reaction zone top link to each other.Have the venetian blind type venting hole on the cover plate, be used for the draining steam.Like Fig. 4
9, foul water tank 1 is positioned at the top cover top, with 4 pillar stiffeners the two is separated.Water tank is of a size of: long * wide * dark=300mm * 200mm * 200mm, the water discharge valve diameter is DN15.The case heading tape has the lid of 100mm * 100mm.The pillar stiffener diameter is 10mm, highly is 150mm.Like Fig. 1
10, filtered water tank 15 sizes: long * wide * dark=700mm * 200mm * 200mm, the case heading tape has the lid of 100mm * 100mm.The water discharge valve diameter is DN15.Like Fig. 1.
The preparation of film carrier swash plate
The film carrier swash plate mainly is made up of focussing glass 32, mirror 34, photocatalyst film 31 3 parts.Mirror is processed after unorganic glass 35 1 sides plate silverskin 33.The material of focussing glass is common unorganic glass, and is identical with the size of mirror.Like Fig. 3.Production process is following:
1, the making of focussing glass:
To cut out good unorganic glass plate with clear water and clean up, using concentration then is that 40% hydrofluoric acid is cleaned the glass single side surface.Clean altogether 2 times, make it roughening, become obscure glass.Use the clear water washes clean at last.
2, the making of mirror:
Wash a good unorganic glass plate of sanction with clear water, clean up with absolute ethyl alcohol again.After the drying, plate silverskin for a side of glass, make it to become the good mirror of reflective function with the silver mirror reaction method.
3, the making of photocatalyst film:
1. take by weighing the 0.40g titania powder, adding 30ml concentration is the NaOH colloidal sol of 12mol/L.Use frequency to be 100Hz ultrasonic cleaner ultra-sonic dispersion 60 minutes, make it to become uniform mixing liquid.Mixed solution is transferred in the tetrafluoroethylene reaction kettle that volume is 80ml, and reaction is 96 hours under 150 ℃ of temperature.Employing goes the distilled water wash reaction to finish the neutrality that is precipitated in the afterreaction still, and drying is also ground under 70 ℃ of temperature, obtains the photocatalyst powder.Adopt this photocatalyst powder of the some grams of the parallel preparation of this method.
2. take by weighing the powder that an amount of step is processed in 1., under the ultra-sonic dispersion effect, it is distributed in the absolute ethyl alcohol.Behind the ultra-sonic dispersion 40 minutes, become uniform glue, the concentration of photocatalyst is 0.800g/L in this glue.
3. the glue that utilizes step to process in 2. films for the hair side of focussing glass in the step 1.After filming, drying is 10 minutes under 50 ℃ of temperature at every turn.Film altogether 3 times.
4. the film carrier glass of 3. processing step is put in the retort furnace, is warmed up to 300 ℃ with the temperature rise rate of 3 ℃/min from room temperature, and constant temperature naturally cools to room temperature again after 2.0 hours.So far, photocatalyst has been completely fixed on the focussing glass.
4, adopt glass cement with mirror with the film carrier focussing glass is bonding becomes one.Silverskin 3 places the inboard, and photocatalyst film 1 places the outside.The film carrier swash plate is promptly processed.Like Fig. 3.
5, the film carrier swash plate total thickness processed of step 4 is no more than 2.0mm.
Operation instructions
Reaction unit can assemble the swash plate of different photocatalysis performances according to the water quality of different characteristics, and fit is simple, has good handiness.See figure one.Its operating method is following:
1, closes water discharging valve 2 and 3, inject the sewage that to handle for foul water tank 1.
2, valve-off 13,14, open valve 12, give light source 10 power supplies.
3, slow turn-on flow rate valve 3, sewage flows automatically to water distributor 5, is evenly distributed to then on the film carrier swash plate 6.The aperture of regulated valve 3 makes the current on the swash plate become uniform liquid film.
4, liquid film is at swash plate from top to bottom in the process of flowing, absorbs the light that the mirror of light that light source 10 direct projections come and film carrier swash plate 6 reflects, and photocatalyst is activated, and starts working, and pollutants in waste water is degraded.Liquid film back and forth flows from top to bottom, and pollutent constantly is removed.
5, the effect of baffle plate 7 is to stop the liquid film that flows down from the last layer swash plate, prevents to flow to outside the swash plate zone.
6, liquid is got back to and is received in the tank 8 after back and forth flowing in the swash plate district, gets into then in the filtered water tank 15.
7, if need the water after handling be detected, valve-off 12 is opened valve 13, just can take out water sample.
Claims (5)
1. a continuous photocatalytic reaction device comprises reaction zone, filtered water tank and foul water tank; It is characterized in that: foul water tank is set up in the reaction zone top, and filtered water tank is positioned at the reaction zone below; Described reaction zone comprises shell, is positioned at the swash plate district and the light source that is positioned at both sides, swash plate district at shell middle part; Said swash plate district is connected and composed by riser, swash plate, baffle plate, and an end of swash plate has groove, and baffle plate is inlaid in the groove on the swash plate; Riser is two that symmetry is installed, has equally distributed skewed slot and vertical slot from top to bottom on the relative face of two risers, and swash plate and baffle plate are inlaid in respectively in the skewed slot and vertical slot on the riser; The top of the swash plate of the superiors is provided with water distributor; Water distributor links to each other with foul water tank, and the below of undermost swash plate is provided with the receipts tank, receives tank and links to each other with filtered water tank; Said swash plate mainly is made up of focussing glass, mirror, photocatalyst film three parts, and mirror is processed after unorganic glass one side plates silverskin, and photocatalyst is carried on the focussing glass with the form of film.
2. continuous photocatalytic reaction device according to claim 1 is characterized in that: said swash plate is dull and stereotyped, and upper surface is level and smooth, and lower surface is level and smooth and scribble refletorized paint, and swash plate and horizontal direction are 5-6 degree angle.
3. continuous photocatalytic reaction device according to claim 1 and 2 is characterized in that: said light source is the 60W fluorescent tube bulb.
4. continuous photocatalytic reaction device according to claim 1 and 2 is characterized in that: the transparent thin board that good transmittance is housed between light source and the reaction zone.
5. continuous photocatalytic reaction device according to claim 3 is characterized in that: the transparent thin board that good transmittance is housed between light source and the reaction zone.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101796937A CN101823778B (en) | 2010-05-24 | 2010-05-24 | Continuous photocatalytic reaction device |
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|---|---|---|---|
| CN2010101796937A CN101823778B (en) | 2010-05-24 | 2010-05-24 | Continuous photocatalytic reaction device |
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| CN101823778A CN101823778A (en) | 2010-09-08 |
| CN101823778B true CN101823778B (en) | 2012-02-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102502918B (en) * | 2011-12-15 | 2013-07-17 | 常州大学 | Tower-shaped water treatment photocatalysis reactor |
| CN105621777A (en) * | 2016-02-18 | 2016-06-01 | 金华知产婺源信息技术有限公司 | Nano magnetic powder catalytic oxidation and wastewater treatment system |
| CN105693004A (en) * | 2016-02-18 | 2016-06-22 | 金华知产婺源信息技术有限公司 | Method for sewage treatment by magnetic nanopowder and photocatalytic oxidation |
| CN109158130A (en) * | 2018-11-09 | 2019-01-08 | 成都禾木源环保科技有限公司 | The preparation method and sewage-treatment plant of magnetic oxygenated graphene photocatalysis compound |
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| CN2591028Y (en) * | 2002-11-13 | 2003-12-10 | 哈尔滨工业大学 | Three-phase internal circulating fluid-bed optical catalytic reactor |
| CN2586528Y (en) * | 2002-11-30 | 2003-11-19 | 哈尔滨工业大学 | Optical catalytic reactor for processing organic exhaust gas |
| CN1171664C (en) * | 2002-11-30 | 2004-10-20 | 哈尔滨工业大学 | Novel photocatalysis reactor for treating organic waste gas |
| EP1772202A1 (en) * | 2005-10-04 | 2007-04-11 | Paul Scherrer Institut | Method for obtaining methane and/or methane hydrate from biomass |
| CN100427183C (en) * | 2006-04-26 | 2008-10-22 | 哈尔滨工业大学 | Air purification assembly filled with nano TiO2-carried ball |
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Owner name: ZHEJIANG WENGUO HEAVY INDUSTRIAL MACHINERY CO., LT Free format text: FORMER OWNER: HARBIN ENGINEERING UNIV. Effective date: 20150708 |
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Inventor after: Xia Shumei Inventor after: Liu Jiming Inventor after: Liu Guangmin Inventor after: Zhang Wenguo Inventor before: Xia Shumei Inventor before: Liu Jiming Inventor before: Liu Guangmin |
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Effective date of registration: 20150708 Address after: 318050 No. 1 gearbox equipment market, Luqiao District, Zhejiang, Taizhou Patentee after: Zhejiang Wen Guo heavy industry Machinery Co., Ltd. Address before: 150001 Heilongjiang, Nangang District, Nantong street,, Harbin Engineering University, Department of Intellectual Property Office Patentee before: Harbin Engineering Univ. |
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Inventor after: Zhang Wenguo Inventor after: Shen Xufeng Inventor after: Xia Shumei Inventor after: Liu Jiming Inventor after: Liu Guangmin Inventor before: Xia Shumei Inventor before: Liu Jiming Inventor before: Liu Guangmin Inventor before: Zhang Wenguo |
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Free format text: CORRECT: INVENTOR; FROM: XIA SHUMEI LIU JIMING LIU GUANGMIN ZHANG WENGUO TO: ZHANG WENGUO SHEN XUFENG XIA SHUMEI LIU JIMING LIU GUANGMIN |
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Granted publication date: 20120201 Termination date: 20170524 |