CN102976438B - Converge luminous energy titanium-dioxide photo chemistry drinking water sterilization device - Google Patents
Converge luminous energy titanium-dioxide photo chemistry drinking water sterilization device Download PDFInfo
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- CN102976438B CN102976438B CN201110260858.8A CN201110260858A CN102976438B CN 102976438 B CN102976438 B CN 102976438B CN 201110260858 A CN201110260858 A CN 201110260858A CN 102976438 B CN102976438 B CN 102976438B
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Abstract
The invention provides a kind of convergence sunlight TiO utilizing high-energy-density2There is photochemically reactive drinking water disinfection method and decontaminating apparatus.This sterilization device includes sunlight converging device and sterilization water channel, also can have converged light conduction device.The feature of this sterilization device is: the sunlight of low luminous energy density converges the convergence sunlight producing high-light-energy density through sunlight converging device, this convergence sunlight is emitted directly toward or above converged light conduction device conduction to sterilization water channel, converges TiO fixing on the just corresponding canal wall under water in position that sunlight is injected2Supporting plate, converges sunlight and is mapped to TiO2Upper generation photochemical reaction produces substantial amounts of OH free radical, there is " advanced oxidizing process ", rapid degradation of organic substances matter also effectively kills antibacterial and other microorganism, simultaneously under the extremely strong ultraviolet of this converged light and obvious heat effect, microbial body also can quick burn lethal, thus realize dual sterilization and disinfective action.
Description
Technical field
The present invention relates to a kind of decontaminating apparatus utilizing titanium dioxide photochemical method drinking water disinfection, there is photochemically reactive drinking water sterilization device in a kind of convergence sunlight titanium dioxide utilizing high-energy-density.
Background technology
In confocal some secondary reflection light intensity pantography system of a patent of invention the present inventor----conical surface and device thereof, wherein according to big conical surface～the built-up sequence of conicle curved surface " opening direction form ": parabola～parabola " opening direction one make peace contrary the most all can ", parabola～hyperbola " opening direction is consistent ", parabola～ellipse " opening direction is contrary ", the confocal some conical surface secondary reflection concentrating unit combining composition in 4 has the condenser performance of excellence.Parallel convergence light will be produced when parallel rays directive parabola～parabola combine；When parallel rays directive parabola～hyperbola, parabola～ellipse combine the caustic that generation intersected, and the convergence ratio of its unit can be calculated by following manner, it is thus achieved that the convergence ratio of parallel convergence light=big circular cone surface area and the ratio of conicle surface area；Obtain convergence ratio=big circular cone surface area and the converged light linear light speckle area ratio of the caustic that intersects.Confocal some conical surface secondary reflection concentrating unit can be channel-shaped or plate-like, and is easier to obtain higher convergence ratio when using plate-like.Its device is simple, converges higher, and convergence effect highlights, the converged light of available high-light-energy density.Confocal some conical surface secondary reflection concentrating unit light of another part of patent of invention simultaneously----plural serial stage converges method, a kind of method providing converged light obtaining high luminous energy density, the multistage light collecting layer that it is formed by confocal some conical surface secondary reflection concentrating unit in confocal some secondary reflection light intensity pantography system of conical surface is connected step by step, incident illumination is converged step by step, forms the converged light of high luminous energy density.
Containing a certain proportion of ultraviolet in sunlight, ultraviolet itself has the ability killing pathogenic bacteria, and object absorbs sunlight and can produce heat.And there is the converged light of high luminous energy density as the aforementioned, though its ultraviolet content is constant, but luminous energy density adds tens times the most up to ten thousand times, and object absorbs the heat of sunlight generation also by fairly obvious.Under the extremely strong ultraviolet of this converged light and obvious heat effect, it is lethal that quick burn is known from experience in microorganism.
Written in German scholar CarlH.Hamann etc. " Electrochemistry " (" electrochemistry (second edition) " [moral] Hamann etc., Chemical Industry Press, 2010) in a book page 179 talk about to page 180 and to utilize PhotoelectrochemicalTechnique Technique to sterilize.Specific as follows: the sterilization of water generally can be by using ClO-Realizing Deng oxidant, the shortcoming of the method is that many Organic substances may be with ClO-Reaction generates poisonous chlorocarbon, optimal in the case of, it would be desirable to be able to the wide spectrum oxidant reacted with gas chromatography kind is to be fully converted to CO by Organic substance2、H2The inorganic compound such as O and HCl, the oxidant of this kind of wide spectrum has OH free radical.When more than TiO2Energy gap light irradiate TiO2Time, its surface will produce OH free radical by photochemical reaction.Utilize the cleaning chemistry characteristic of OH free radical, develop a lot of disinfecting process in recent years, be referred to as " advanced oxidizing process ".TiO2Effect of film is not limited in processing Organic substance, and it can also effectively kill antibacterial and other microorganisms.Existing it has proven convenient that be coated with TiO2The Glass On Fine bacterium of thin film has significantly sterilization and disinfective action equally.Simply by the presence of illumination, it is coated with TiO2The pottery of film will have lasting bactericidal activity.
The most common TiO2Photochemical method (or photocatalytic method) drinking water sterilization device is required for uviol lamp and circuit control part, such as CN102030388A open channel type photocatalytic ultraviolet-disinfection equipment, including organizing ultraviolet lamp module more, Electroinc ballast module, control system etc.；And for example CN201665552U photocatalytic water treatment device, needs also exist for uviol lamp；CN1762838A mono-kind utilizes the drinking water sterilization device of ultraviolet-optically catalytic TiO 2 disinfection, it is also desirable to uviol lamp.This just requires that decontaminating apparatus will consume substantial amounts of electric energy, and the UV energy density produced is less.From energy-conservation and environmental protection angle, sterilizing as used sunlight to combine with titanium dioxide photochemical method is highly desirable disinfection way.But directly sunlight being used for decontaminating apparatus, its Disinfection Effect the faintest will can not reach requirement of sterilizing.
Summary of the invention
The invention aims to solve the problems referred to above and deficiency and provide a kind of convergence sunlight titanium dioxide utilizing high-energy-density that photochemically reactive drinking water disinfection method and decontaminating apparatus occur.
The present invention solves its technical problem and the technical scheme is that convergence luminous energy titanium-dioxide photo chemistry drinking water disinfection method and device, and this decontaminating apparatus includes sunlight converging device and sterilization water channel, it is also possible to have converged light conduction device.The feature converging luminous energy titanium-dioxide photo chemistry drinking water disinfection method is: the sunlight of low luminous energy density converges the convergence sunlight producing high-light-energy density through sunlight converging device, this convergence sunlight is emitted directly toward or above converged light conduction device conduction to sterilization water channel, converges TiO fixing on the just corresponding canal wall under water in position that sunlight is injected2Supporting plate, the convergence sunlight of high-light-energy density is mapped to TiO2Upper generation photochemical reaction produces substantial amounts of OH free radical, there is " the advanced oxidizing process " as described in " Electrochemistry ", degradation of organic substances matter also effectively kills antibacterial and other microorganisms, simultaneously under the extremely strong ultraviolet of this converged light and obvious heat effect, microbial body also can quick burn lethal, thus realize dual sterilization and disinfective action.
The sunlight converging device that convergence luminous energy titanium-dioxide photo chemistry drinking water disinfection method and device comprise, can use the device of confocal some secondary reflection light intensity pantography system of conical surface or converge method manufacture according to confocal some conical surface secondary reflection concentrating unit light of plural serial stage.The concentrating light principles schematic diagram of the basic element of character of sunlight converging device can be referring to accompanying drawing 1 and accompanying drawing 2.Accompanying drawing 1 is the optically focused schematic diagram of parabola～parabola " opening direction one make peace contrary two kinds of situations " confocal some combination, when this combination of parallel rays directive will produce parallel convergence light, the convergence of its unit is than the ratio of=big circular cone surface area with conicle surface area.Because the convergence light of its incident ray and injection is all directional light, it is easy to shift in light collecting system and transmit.Accompanying drawing 2 is parabola～hyperbola " opening direction is consistent " and parabola～the optically focused schematic diagram of the confocal combination of ellipse " opening direction is contrary ", when generation is intersected caustic by this combination of parallel rays directive, the convergence of its unit is than=big circular cone surface area and converged light linear light speckle area ratio.Produce because of it is the caustic that intersects, and is not easy to shift in light collecting system and transmit, is typically adapted to be used in final stage light collecting layer, and converged light of its injection is emitted directly toward or is conducted into sterilization water channel.But sunlight converging device convergence sunlight need to can be only achieved most preferably with the mating reaction of solar tracking device, effect.
Being known by China Meteorological data, the average annual solar radiation intensity in the Sichuan Basin that China's sunlight irradiation is the most weak is 3Kw/ (h*m2), take 3.6Kw/ (h*m for simple and Convenient Calculation2), i.e. 1w/ (s*m2), this solar radiation intensity is the most on the low side in China.If sunlight converging device selects the two-stage tandem collecting system in accompanying drawing 4, the secondary reflection concentrating unit of collecting system all uses plate-like, two-stage converges ratio and is all set to 100: 1, i.e. all big circular cone subsequent corrosion 1m in one-level secondary reflection concentrating unit, all conicle subsequent corrosion 10cm, N is compared in its convergence1=π * 1002/π*102=100；Big circular cone subsequent corrosion 10cm in two grades of secondary reflection concentrating unit, conicle subsequent corrosion 1cm, N is compared in its convergence2=π * 102/π*12=100, the convergence ratio of flat reflecting layer is 1, and total convergence of the most whole device compares N=2*N1*N2=2*100*100=20000, it is assumed that collecting system luminous reflectance in reflection is 100%, then light radiation intensity 1w/ (s*m2) the incident illumination radiant intensity that converges the converged light produced through two grades of direct collecting systems be up to 20Kw/ (s*m2), luminous energy density adds 20000 times.It can thus be appreciated that, converged light after sunlight converging device converges has high luminous energy density, under the high ultraviolet density of this converged light and fairly obvious heat effect, microbial body and virus meeting quick burn are lethal, and high ultraviolet density will cause titanium dioxide to produce substantial amounts of OH free radical, there is oxidizing process rapid degradation of organic substances matter and effectively kill antibacterial and other microorganisms, so comprehensive disinfective action will be the most thorough produced by the converged light of high-light-energy density.
Converge the sterilization water channel that luminous energy titanium-dioxide photo chemistry drinking water disinfection method and device comprise, mainly by the bottom of reflective canal wall, common Qu Bi, canal, titanium dioxide supporting plate form, the riding position of each parts can be referring to accompanying drawing 5 to accompanying drawing 8.The effect of each parts: reflective canal wall has the effect of reflection light, promotes light to be irradiated to absorb on titanium dioxide supporting plate or by water body as far as possible, increases light utilization efficiency；Common canal wall is the canal wall of lowermost layer titanium dioxide supporting plate bottom, without special role；Can be at the bottom of flat and wave at the bottom of canal, at the bottom of preferably scheme is wave, turbulence can be produced at the bottom of water flows through wave, play the effect of stirring mixing, the diffusion of beneficially OH free radical and make water body thorough disinfection；Titanium dioxide supporting plate comprises supporting body and titanium dioxide two parts, sees accompanying drawing 9, and wherein titanium dioxide can be TiO2Plate or TiO2Plated film, active substance therein is titanium dioxide, and more excellent scheme is TiO2Plated film, indicates according to the theory in " Electrochemistry " book, when light irradiates TiO2Time, it is to produce OH free radical on its surface by photochemical reaction, so thin TiO2Plated film TiO2Utilization rate higher, the most beneficially OH free radical is diffused in water body.
The converged light conduction device that convergence luminous energy titanium-dioxide photo chemistry drinking water disinfection method and device can have, including plane mirror or luminous reflectance passage (as optical fiber or in have the pipeline etc. in reflecting layer) etc., play TiO in the water channel that is transferred to the converged light that sunlight converging device produces to sterilize2Effect above supporting plate.If converging sunlight to be emitted directly toward TiO in sterilization water channel2On supporting plate, will need not converged light conduction device is installed.
The invention has the beneficial effects as follows: the invention provides a kind of convergence sunlight titanium dioxide utilizing high-energy-density and photochemically reactive drinking water disinfection method and decontaminating apparatus occur.Its sterilization method make use of the characteristic of the high-light-energy density converging sunlight, is combined with titanium-dioxide photo chemical disinfection by convergence sunlight and defines comparatively ideal disinfection way.Converged light after sunlight converging device converges has high luminous energy density, under the high ultraviolet density of this converged light and fairly obvious heat effect, microbial body and virus meeting quick burn are lethal, and high ultraviolet density will cause titanium dioxide to produce substantial amounts of OH free radical, there is oxidizing process rapid degradation of organic substances matter and effectively kill antibacterial and other microorganisms, it is achieved that dual sterilization and disinfective action.Converging luminous energy titanium-dioxide photo chemical disinfection and make use of solar energy the titanium-dioxide photo chemical disinfection combining cleaning and ultraviolet disinfection method two ways, a whole set of drinking water sterilization device simple in construction, sterilization is thoroughly, the most energy-conservation, environmental protection, safe noresidue.
Accompanying drawing explanation
Fig. 1 is the concentrating light principles schematic diagram of the basic element of character parabola of sunlight converging device～parabola " opening direction one make peace contrary two kinds of situations " confocal some combination.
Fig. 2 is the basic element of character parabola of sunlight converging device～hyperbola " opening direction is consistent " and parabola～the concentrating light principles schematic diagram of the confocal combination of ellipse " opening direction is contrary ".
Fig. 3 is the schematic diagram that the converged light that sunlight converging device of the present invention produces is conducted through converged light conduction device.Left figure is the situation using plane mirror, right figure be use luminous reflectance passage (as optical fiber or in have the pipeline etc. in reflecting layer) situation.
Fig. 4 is a kind of sunlight converging device example---the schematic diagram of-two-stage tandem collecting system concentrating light principles of the present invention.This system is made up of two-stage light collecting layer and one-level flat reflecting layer, including three secondary reflection concentrating unit.This system first order light collecting layer of the parallel rays directive of low luminous energy density, converges the parallel convergence light producing stronger high-light-energy density through two-stage tandem collecting system.
Fig. 5 is that the present invention sterilizes the principle schematic of water channel disinfective action.
Fig. 6 is the water channel sectional view along A-A of sterilizing in Fig. 5.Have employed at the bottom of wave, for preferably scheme at the bottom of the canal of the sterilization water channel shown in figure.
Fig. 7 is also the water channel sectional view along A-A of sterilizing in Fig. 5, have employed flat at the bottom of the canal of the sterilization water channel shown in figure.
Fig. 8 is that the present invention sterilizes the top view of water channel.
Fig. 9 is TiO2The structure for amplifying schematic diagram of supporting plate, comprises supporting body and titanium dioxide two parts.
Figure 10 is the structural representation of a kind of embodiment of package unit of the present invention.
In figure, the big conical surface of 1-, 2-conicle curved surface, 3-converged light conduction device, 4-reflective canal wall, 5-common canal wall, at the bottom of 6-canal, 7-titanium dioxide supporting plate, 8-TiO2Plated film or TiO2Plate, 9-supporting body.
Detailed description of the invention
The important inventive point of the present invention is that a kind of convergence sunlight titanium dioxide utilizing high-energy-density occurs photochemically reactive drinking water disinfection method; the multiple a kind of example realized in device of the present invention presented below is as general embodiments; other its principle all and basic structure are same or like with below embodiment, all within protection scope of the present invention.
The present embodiment is the convergence luminous energy titanium-dioxide photo chemistry drinking water sterilization device being only made up of sunlight converging device and sterilization water channel, can be referring to accompanying drawing 4 to accompanying drawing 6 and accompanying drawing 8 and accompanying drawing 10.Its sunlight converging device is a two-stage tandem collecting system, it is made up of two-stage light collecting layer and one-level flat reflecting layer, the secondary reflection concentrating unit formed including the confocal combination of three parabolas～parabola " opening direction is contrary ", wherein, in one-level light collecting layer 2, in two grades of light collecting layers 1.The secondary reflection concentrating unit of collecting system all uses plate-like, and total convergence of sunlight converging device compares N=2*N1*N2.This system first order light collecting layer of the parallel rays directive of low luminous energy density, converges the parallel convergence light of the high-light-energy density producing N times of incident illumination through two-stage tandem collecting system.
The sterilization water channel of the present embodiment by converge by the bottom of reflective canal wall 4, common canal wall 5, canal 6, titanium dioxide supporting plate 7 form, each parts mount position can be found in accompanying drawing 5, accompanying drawing 6 and accompanying drawing 8.The converged light of high-light-energy density mechanism in sterilization water channel is as follows: the convergence sunlight of high-light-energy density is directly incident upon above sterilization water channel, converges TiO fixing on the just corresponding canal wall under water in position that sunlight is injected2Supporting plate 7, the convergence sunlight of high-light-energy density is mapped to TiO2Photochemical reaction is occurred to produce substantial amounts of OH free radical on plated film 8, there is " advanced oxidizing process ", rapid degradation of organic substances matter also effectively kills antibacterial and other microorganisms, simultaneously under the extremely strong ultraviolet of this converged light and obvious heat effect, microbial body also can quick burn lethal, thus realize dual sterilization and disinfective action.In the process, reflective canal wall 4 reflects light, promotes light to be irradiated to absorb on titanium dioxide supporting plate 7 or by water body as far as possible, increases light utilization efficiency, promotes disinfecting process effect；At the bottom of canal, 6 is at the bottom of wave, can produce turbulence at the bottom of water flows through wave, plays the effect of stirring mixing, the diffusion of beneficially OH free radical and make water body thorough disinfection.
Sterilization method in the present embodiment make use of solar energy the titanium-dioxide photo chemical disinfection combining cleaning and ultraviolet disinfection method two ways, a whole set of drinking water sterilization device simple in construction, and sterilization is thoroughly, efficiently, the most energy-conservation, environmental protection, safe noresidue.
Claims (2)
1. converge luminous energy titanium-dioxide photo chemistry drinking water sterilization device, this decontaminating apparatus includes sunlight converging device and sterilization water channel, also has converged light conduction device, it is characterized in that: the sunlight of low luminous energy density converges the convergence sunlight producing high-light-energy density through sunlight converging device, this convergence sunlight, above converged light conduction device conduction to sterilization water channel, converges TiO fixing on the just corresponding canal wall under water in position that sunlight is injected2Supporting plate, converges sunlight and is mapped to TiO2Upper generation photochemical reaction produces substantial amounts of OH free radical, there is oxidizing process, rapid degradation of organic substances matter also effectively kills antibacterial and other microorganism, simultaneously under the extremely strong ultraviolet of this converged light and obvious heat effect, microbial body also can quick burn lethal, thus realize dual sterilization and disinfective action；
Described sunlight converging device is a two-stage tandem collecting system, it is made up of two-stage light collecting layer and one-level flat reflecting layer, the secondary reflection concentrating unit that the parabola contrary including three opening directions～the confocal combination of parabola are formed, wherein, in one-level light collecting layer 2, in two grades of light collecting layers 1；The secondary reflection concentrating unit of collecting system all uses plate-like, and total convergence of sunlight converging device compares N=2*N1*N2；This system first order light collecting layer of the parallel rays directive of low luminous energy density, converges the parallel convergence light of the high-light-energy density producing N times of incident illumination through two-stage tandem collecting system；
Described N1For the convergence ratio of secondary reflection concentrating unit, described N in one-level light collecting layer2It it is the convergence ratio of secondary reflection concentrating unit in two grades of light collecting layers.
Convergence luminous energy titanium-dioxide photo chemistry drinking water sterilization device the most according to claim 1, it is characterized in that: described sterilization water channel mainly by the bottom of reflective canal wall, common Qu Bi, canal, titanium dioxide supporting plate forms, core component therein is titanium dioxide supporting plate, and its titanium dioxide can be TiO2Plate or TiO2Plated film, active substance therein is titanium dioxide.
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| CN1951831A (en) * | 2006-10-27 | 2007-04-25 | 陈克敏 | Condensed water disinfection and purification device for central conditioning system |
| CN101723555A (en) * | 2009-12-29 | 2010-06-09 | 苏州德华生态环境科技有限公司 | Photocatalytic-oxidation biological floating bed algae removing device |
| CN101786688A (en) * | 2010-02-04 | 2010-07-28 | 山东大学 | All-weather titanium dioxide nanowire photocatalysis sewage disinfecting and purifying device |
| CN101921006A (en) * | 2010-06-09 | 2010-12-22 | 深圳市环境工程科学技术中心 | Integrated concentrating solar power and seawater desalination method and system |
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| US7485799B2 (en) * | 2002-05-07 | 2009-02-03 | John Michael Guerra | Stress-induced bandgap-shifted semiconductor photoelectrolytic/photocatalytic/photovoltaic surface and method for making same |
| KR20100126208A (en) * | 2009-05-21 | 2010-12-01 | 조지아 테크 리서치 코포레이션 | Antimicrobial uv up-conversion composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1951831A (en) * | 2006-10-27 | 2007-04-25 | 陈克敏 | Condensed water disinfection and purification device for central conditioning system |
| CN101723555A (en) * | 2009-12-29 | 2010-06-09 | 苏州德华生态环境科技有限公司 | Photocatalytic-oxidation biological floating bed algae removing device |
| CN101786688A (en) * | 2010-02-04 | 2010-07-28 | 山东大学 | All-weather titanium dioxide nanowire photocatalysis sewage disinfecting and purifying device |
| CN101921006A (en) * | 2010-06-09 | 2010-12-22 | 深圳市环境工程科学技术中心 | Integrated concentrating solar power and seawater desalination method and system |
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