A kind of photocatalytic oxidation device
Technical field
The utility model relates generally to the degraded field of the organic wastewater with difficult degradation thereby such as dyeing waste water, agricultural chemicals waste water, paper waste, is specifically related to a kind of UV-LED/ loading type titanium oxide photochemical catalyst oxidation unit.
Background technology
Photocatalysis oxidation technique utilizes photoproduction strong oxidizer to be H by organic pollutant exhaustive oxidation
2o, CO
2deng small molecules, particularly to the organism of difficult degradation, there is good oxygenolysis.Photocatalysis oxidation technique has reaction conditions gentleness, to human body and environment nontoxic, the advantage such as applied widely is a kind of method for processing organic wastewater very with application prospect.At present, semiconductor material and the mixture thereof that can be used as organic catalysis, degraded have a variety of, but TiO
2because of advantages such as its catalytic efficiency is high, stable chemical nature, oxidation capacity strong, non-secondary pollutions, one of study hotspot becoming field of environmental improvement.
Due to traditional nano-TiO
2suspending phase photocatalyst easy in inactivation, easily cohesion, the difficult shortcoming reclaimed come out gradually, and namely catalyzer immobilization is prepared supported titanium
2, both can solve a difficult problem for separation and recovery of catalyst, can also overcome suspending phase poor catalyst stability and easily poisoning shortcoming, be also the desirable route of the incompatible design catalyticreactor of various functional group of application of active component and carrier.
Photocatalytic process needs to make the interracial contact that will contact to photon as far as possible, and therefore light source plays an important role in light-catalyzed reaction process.In common photocatalytic process, usually adopt gas ultraviolet lamp, as in, Cooper-Hewitt lamp, mercury wherein environment and human body can produce harm to external world; And use the photochemical catalysis equipment of ultraviolet lamp must be designed to the shape being suitable for lamp, most cases this will take larger space.In addition, most of Conversion of energy can be heat by traditional mercuryvapour lamp.Therefore, there is less energy-consumption, be the key point solving current photocatalysis technology application bottleneck based on the novel photocatalysis equipment of innoxious substance, different shape size.
Develop the structure design that the device core utilizing photocatalysis oxidation technique to dispose of sewage is sewage photocatalysis treatment device.The appropriate design of Treatment by Photocatalysis Oxidation apparatus structure directly affects photocatalysis oxidation technique at sewage disposal side's Progress in industrialization, and therefore simple, easy to operate, the light of project organization and the high sewage photocatalysis treatment device of photocatalyst utilization ratio are the research emphasis of the outer association area of Present Domestic.
Utility model content
The purpose of this utility model is to provide a kind of UV-LED nano-photo catalytic oxidation unit, is specifically provided with UV-LED light source and is covered with nano-TiO
2glass filler, it can effectively be degraded the organic waste water of lower concentration, and mineralising majority of organic pollutants matter, can play the effect of sterilization, sterilization simultaneously.The popularization of this utility model, by being conducive to the progress promoting China's photocatalysis oxidation technique, drives the development of environmental protection industry.
The purpose of this utility model is achieved in that
A kind of photocatalytic oxidation device, comprising:
One cylindrical shell, one is arranged at water-in on cylindrical shell and water outlet; Photochemical reaction device is provided with in the middle part of described cylindrical shell;
The inlet channel of the described water-in of one connection, described inlet channel is also provided with the assembly that blocks water to enter in photochemical reaction device by the uniform velocity even for waste water amount;
Described photochemical reaction device comprises a supporting component be made up of upper backup pad and lower supporting plate, the one Large area light source plate being arranged at the some laid out in parallel in supporting component, described Large area light source plate is made up of the aluminium base of the some UV-LED of being fixed with light sources, and wherein the supply lead of UV-LED light source is connected to barrel outer surface.
In a preferred embodiment of the present utility model, described in the assembly that blocks water be made up of the retaining plate be set up in parallel and catch.
In a preferred embodiment of the present utility model, described cylinder inboard wall posts reflector layer.
In a preferred embodiment of the present utility model, described aluminium base is also provided with and scribbles nano-TiO
2the glass filler of film.
In a preferred embodiment of the present utility model, described water-in is lower than water outlet.
In a preferred embodiment of the present utility model, described cylindrical shell adopts acrylic material to make.
By technique scheme, the beneficial effects of the utility model are:
(1) application is installed convenient: photocatalysis oxidation reaction apparatus is modular design, can according to the actual needs of sewage disposal, neatly by sewage treatment unit serial or parallel connection, easy for installation, simple to operate, suitability is wide, and working efficiency is high;
(2) glass filler surface is covered with TiO
2film, nano-TiO
2film surface-area is huge, and reaction is more abundant, and degradation speed is fast;
(3) devise light reflection assembly, the utilization ratio of light can be improved;
(4) sterilization simultaneously, sterilization and degradation of organic substances: applied range, nearly all sewage can adopt;
(5) simple, the environmental protection and energy saving of UV-LED light source: there is close structure, feature that size is little; Containing human body and environment being possessed to the mercury of hazardness; LED belongs to cold light source, and this luminous mechanism energy waste is little, and nearly all energy is all converted into luminous energy, has longer work-ing life, and LED has good spectral purity.
(6) under UV-irradiation, nano-TiO
2can produce the hydroxyl radical free radical that oxidation capacity is extremely strong, any organism of almost can degrading, non-secondary pollution, organism is degraded to CO by exhaustive oxidation
2and H
2o.
(7) water (flow) direction is " low in and high out ", is conducive to water and light source and surface and is covered with TiO
2the glass filler of film fully contacts, and DeR is more abundant.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model example structure schematic diagram.
In figure: 1, water-in; 2, retaining plate; 3, tapetum lucidum; 4, cylindrical shell; 5, aluminium base; 6, LED chip; 7, upper backup pad; 8, venting port; 9, flange; 10, flange plate; 11, water outlet; 12, lower supporting plate; 13, catch; 14, supporting leg; 15, power-supply controller of electric; 16, glass filler
Embodiment
The technique means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As shown in Figure 1, a kind of photocatalytic oxidation device, comprising: a cylindrical shell 4, and cylindrical shell 4 bottom is fixed with supporting leg 14, and one is arranged at water-in 1 on cylindrical shell 4 and water outlet 11; Photochemical reaction device is provided with in the middle part of described cylindrical shell; The inlet channel of the described water-in 1 of one connection, described inlet channel is also provided with the assembly that blocks water to enter in photochemical reaction device by the uniform velocity even for waste water amount;
Described photochemical reaction device comprises a supporting component be made up of upper backup pad 7 and lower supporting plate 12, the one Large area light source plate being arranged at the some laid out in parallel in supporting component, described Large area light source plate is made up of the aluminium base of the some UV-LED of being fixed with light sources, and wherein the supply lead of UV-LED light source is connected to barrel outer surface.
The aluminium base 5 of LED chip 6 attachment is fixed with as excitation light source panel in the middle part of cylindrical shell 4, cylindrical shell 4 is placed in aspectant mode, the supply lead of ultraviolet-LED light source leads to the power-supply controller of electric 15 outside housing, often organize between LED light source energized face place 5 and be all filled with glass filler 16, glass filler surface is covered and is scribbled nano-TiO
2film, is provided with water-in 1 bottom cylindrical shell 4, and upper right side is provided with water outlet 11, and upper left side is provided with venting port 8, and cylindrical shell 4 outside surface is provided with power-supply controller of electric 15, and be provided with retaining plate 2 and catch 13 below cylindrical shell 4 as water inlet water-distributing device, cylindrical shell 4 inwall is covered with reflector layer 3.
Waste water containing Persistent organic pollutants during use enters cylindrical shell 4 from water-in 1, and waste water is after water inlet water-distributing device retaining plate 2 and catch 13, and enter photochemical reaction district at the uniform velocity even amount, waste water and surface are covered and scribbled nano-TiO
2after the abundant contact of glass filler 16 of film, after the UV-light uniform irradiation that UV-LED big area exciting light source plate 5 is launched, there is photocatalysis oxidation reaction, in cylindrical shell, covered reflector layer 3, can improve the utilization ratio of light, water is after treatment discharged through water outlet 11.Cylindrical shell 4 adopts acrylic material, can directly observe photocatalysis oxidation reaction situation.
It is convenient that the utility model installs application: photocatalysis oxidation reaction apparatus is modular design, can according to the actual needs of sewage disposal, and neatly by sewage treatment unit serial or parallel connection, easy for installation, simple to operate, suitability is wide, and working efficiency is high;
Glass filler surface is covered with TiO
2film, nano-TiO
2film surface-area is huge, and reaction is more abundant, and degradation speed is fast;
Devise light reflection assembly, the utilization ratio of light can be improved;
Sterilization simultaneously, sterilization and degradation of organic substances: applied range, nearly all sewage can adopt;
UV-LED light source is simple, environmental protection and energy saving: have close structure, feature that size is little; Containing human body and environment being possessed to the mercury of hazardness; LED belongs to cold light source, and this luminous mechanism energy waste is little, and nearly all energy is all converted into luminous energy, has longer work-ing life, and LED has good spectral purity.
Under UV-irradiation, nano-TiO
2can produce the hydroxyl radical free radical that oxidation capacity is extremely strong, any organism of almost can degrading, non-secondary pollution, organism is degraded to CO by exhaustive oxidation
2and H
2o.
Water (flow) direction is " low in and high out ", is conducive to water and light source and surface and is covered with TiO
2the glass filler of film fully contacts, and DeR is more abundant.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.