A kind of aeration photocatalysis apparatus
Technical field
The present invention relates to a kind of aeration photocatalysis apparatus, belong to technical field of sewage in environment protection.
Background technology
Aeration refers to artificially and in purification tank for liquid waste, passes into air by suitable equipment, to reach the object of oxygenation.Aeration not only makes liquid-to-air contact oxygenation in pond, and due to agitated liquid, has accelerated oxygen in air and shifted in liquid; Aeration can also promote organic oxygenolysis in sewage.
Traditional water treatment method efficiency is low, cost is high, have secondary pollution problems, the solution that waste water control can not get always.Light-catalysed appearance, has opened up the new direction of traditional wastewater treatment.But up to the present photocatalysis technology is used widely not yet aspect wastewater treatment, be mainly that some is to separate from water nano level being difficult to because of granules of catalyst separation difficulty.At present mainly concentrate on the exploitation of catalyzer and the exploitation of catalytic unit for the research of this technology.If have simple applicable treatment facility, will greatly promote the development of wastewater treatment.
Affect the important in have three of catalyzed reaction efficiency: one is catalyst type, the 2nd, the surface-area of catalyzer, one is the utilization ratio of light, i.e. the thickness of liquid film.For adopting identical catalyzer, catalytic unit role is exactly: being the specific surface area that expands catalyzer on the one hand, is to ensure light efficiency on the other hand.
In the time that load has the carrier of nano particle to be soaked in water, the solution that exciting light must see through thicker (often more than several centimetres) just can be irradiated on catalyzer.And in fact, no matter be in ultraviolet region or visible region, organic solution (especially with look organic wastewater) all can have photoabsorption in various degree, this will certainly cause exciting light light loss in various degree, the light intensity that arrives catalyst surface is declined, thereby the productive rate in light induced electron and hole is declined, finally make the degradation efficiency of pollutent reduce.
Numerous literature research show: in solution, the concentration of dissolved oxygen is higher is just more conducive to the carrying out of light-catalyzed reaction.Dissolved oxygen concentration improves the reason that promotes degradation rate to improve: from chemical terms, planar water can be regarded as electron-hole deathnium, and adsorb oxygen is the trapping agent of electronics.Aeration has increased the dissolved oxygen in system, can effectively suppress light induced electron (e on the one hand as the dissolved oxygen of electron acceptor(EA)
-) and hole (h
+) simple composite, on the other hand, the superoxide anion (O of high activity that dissolved oxygen generates
2 -) can with reactive organic molecule, or after protonation, generate H
2o
2until OH has improved the activity of light-catalyzed reaction.(Shenyang Institute of Technology's journal, 75 pages of the 1st phases in 2004; Environmental chemistry, 88 pages of the 1st phases in 2010)
Currently used aeration type photochemical catalysis is generally in catalytic process, to increase common aerating apparatus, and efficiency is low, power consumption is high.
Summary of the invention
The object of the invention is provides for overcoming the deficiencies in the prior art the aeration photocatalysis apparatus that a kind of efficiency is high, low in energy consumption, do not have secondary pollution.
The technical solution used in the present invention is: the present invention includes two upper and lower parallel and coaxial disks, axle is fixedly linked in the axle center place of two disks, and the epimere of axle also upwards extends and is fixedly connected with electric motor through the center of second disk on top; Along uniform several bend pipes of circumferential direction of the card of two disks, the hypomere of several bend pipes parallel with axle and through first disk of bottom to downward-extension, the epimere of several bend pipes is through second disk on top and along the center of second disk towards the outwardly-bent certain angle of oblique upper radially; The upper end of each bend pipe all has one section of trunnion, and the thinnest side partly of trunnion is provided with the kapillary communicating with extraneous air; Outside two disks, coaxial sleeve has the first cylinder, and the first conically shaped of a concentric is extended in the upper end of the first cylinder, on the outer side of the first cylinder and the first conically shaped, is equipped with multiple bulbs; The outer coaxial sleeve of the first cylinder has second cylinder affixed with the first cylinder, and the second cylinder inner side is fixedly lined with area load the silver paper tinsel of Trisilver phosphate; There are multiple the second conically shapeds in the second cylinder outside vertically coaxial sleeve, and the second conically shaped upper end is large end, and the radius of the large end of the second conically shaped is greater than the length of bend pipe upper end bending, is fixedly lined with stair-stepping silver paper tinsel on the second conically shaped medial surface; The one side load that stair-stepping silver paper tinsel contacts with air has Trisilver phosphate; On the outer side of all the other the second conically shapeds except bottom second conically shaped, be all provided with bulb; On the second cylinder wall one circle of the second conically shaped and the second cylinder connection place, have aperture; The bend pipe of the following part of first disk is placed in pending water.
The present invention adopts has following beneficial effect after technique scheme:
1, the disk in the present invention can do as far as possible little, as long as can meet bend pipe erection space, to reduce the stirring water yield, low power consuming oxygenation, reduce power waste.2, by oxygenation and photochemical catalysis combination, greatly promote photocatalysis effect.3, trunnion can make current accelerate, and the negative pressure forming at trunnion place increases, and the kapillary at trunnion place can suck more air, can be effectively and current mixing, and increase dissolved efficiency.4, stepped support of the catalyst had both increased the surface-area of catalyzer, can increase again oxygen dissolution.5, the overflow weir of ladder step edge can keep certain liquid level, can not allow water flow velocity too fast, but also can maintain one deck liquid film.If 6, the outdoor use of the present invention, can also accept the irradiation of sunlight, make full use of sun power decomposing pollutant.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of aeration photocatalysis apparatus of the present invention;
Fig. 2 is Fig. 1 middle and upper part disk 1 and bend pipe 3 packaging assembly enlarged diagrams;
Fig. 3 is the local enlarged diagram of cylinder 10 and conically shaped 11 packaging assemblies in Fig. 1;
In figure: 1. disk; 2. axle; 3. bend pipe; 4. trunnion; 5. kapillary; 6. electric motor; 7. cylinder; 8. conically shaped; 9. bulb; 10. cylinder; 11. conically shapeds; 12. overflow weirs; 13. bulbs; 14. flangings; 15. supports; 16. apertures.
Embodiment
With reference to Fig. 1, the present invention includes two upper and lower parallel and coaxial disks 1, two disks 1 are fixedly connected by axle 2, axle 2 is positioned at the axle center place of two disks 1, and the lower end of axle 2 is fixed on the center of first disk 1 of bottom, and the epimere of axle 2 is through the center of second disk 1 on top and extend upward certain length, the upper end of axle 2 is fixedly connected with electric motor 6, electric motor 6 is fixedly located on support 15, is with moving axis 2 to rotate by electric motor 6, drives two disks 1 to rotate simultaneously.
Again referring to Fig. 2, circumferential direction along the card of two disks 1 is evenly arranged a circle bend pipe 3, bend pipe 3 has several, several bend pipes 3 pass the card of two disks 1 simultaneously, the hypomere of several bend pipes 3 is all parallel with axle 2, and first disk 1 of bottom is stretched out to downward-extension in the lower end of several bend pipes 3, the epimere of several bend pipes 3 is through second disk 1 on top, the epimere of several bend pipes 3 has a certain angle a along the center of disk 1 towards oblique upper is radially outwardly-bent, and the angle of bend a of bend pipe 3 is between 90 ° ~ 150 °.The angle of bend a of all bend pipes 3 can be identical, also can be different.The upper end of each bend pipe 3 all has the trunnion 4 of a section thinner, and trunnion 4 the thinnest sides are partly provided with kapillary 5, and the tube wall of kapillary 5 stretches out perpendicular to trunnion 4, and kapillary 5 communicates with extraneous air.
Have a cylinder 7 at two outer coaxial sleeves of disk 1, the conically shaped 8 of a concentric is extended in the upper end of cylinder 7, and conically shaped 8 upper ends are large ends, and lower end is small end, and the internal diameter of small end equates with the internal diameter of cylinder 7.On the outer side of cylinder 7 and conically shaped 8, be all fixed with multiple bulbs 9, bulb 9 can be with halogen lamp or LED lamp.Have cylinder 10 at the outer coaxial sleeve of cylinder 7, the bulb 9 on cylinder 7 outer sides is located between cylinder 7 outer sides and cylinder 10 medial surfaces, and cylinder 10 inner sides are fixedly lined with silver paper tinsel, and silver paper tinsel area load has Trisilver phosphate to make catalyzer.Cylinder 7 is fixed on cylinder 10 by metal strip radially, and the position of the lower end position of cylinder 7 and cylinder 10 and first disk 1 of bottom is suitable.
In cylinder 10 outsides, coaxial sleeve has multiple conically shapeds 11 vertically, and conically shaped 11 upper ends are large ends, and lower end is small end, and all conically shaped 11 end diameters are all identical with cylinder 10, and the upper end diameter of conically shaped 11 is not identical.The upper surface, top of all conically shapeds 11 is all positioned at sustained height, and the radius of conically shaped 11 large ends is greater than the length of bend pipe 3 upper end bendings, and the water outlet of bend pipe 3 upper port can be dropped on conically shaped 11 internal surfaces.The large end of conically shaped 11 is fixed on by fixed beam on the support 15 of electric motor 6, on conically shaped 11 medial surfaces, is fixedly lined with stair-stepping silver paper tinsel.
The one side load that the stair-stepping silver paper tinsel being fixedly lined with on conically shaped 11 medial surfaces contacts with air has Trisilver phosphate, the step of stair-stepping silver paper tinsel is provided with overflow weir 12 along the line, for maintaining certain thickness of liquid film, there is the effect that maintains liquid layer and uniform liquid is overflowed.On the outer side of all the other conically shapeds 11 except a bottom conically shaped 11, bulb 13 is all installed, bulb 13 and bulb 9 adopt identical or different bulbs.The outward flange of conically shaped 11 large ports downwards folding has flanging 14, for the protection of bulb 13, makes water can not drench bulb 13.On wall one circle of the cylinder 10 of conically shaped 11 and cylinder 10 connection places, have aperture 16, water is after the step of stair-stepping silver paper tinsel flows down, in small holes 16 flows into cylinder 10, downward along the inwall of cylinder 10.
When the present invention works, the bend pipe 3 of first disk of bottom part below 1 is all placed in the pond for the treatment of sewage, and electric motor 6 is with moving axis 2 to rotate, and axle 2 drives disk 1 to rotate, disk 1 drives bend pipe 3 to rotate, top can form negative pressure, and water can be thrown out of by gas pressure, along with water is thrown out of, the interior formation negative pressure of bend pipe 3, water is drunk up and is thrown out of continuously by the lower port of the bend pipe 3 in pond, is throwing away trunnion 4 places, has air to incorporate in water by kapillary 5.Due to the angle of bend difference of bend pipe 3, the distance difference that water is thrown out of, tackled by conically shaped 11 internal surfaces, water can be along the conically shaped 11 stair-stepping silver paper tinsels in inner side to dirty, on stair-stepping silver paper tinsel, load has visible light catalyst, under the irradiation of the light of bulb 13, the catalyzed degraded of water pollutant.When water is through aperture 16 on cylinder 10 walls, along cylinder 10 inwall stream time, the light-illuminating of the bulb 9 on cylinder 7 surfaces, in liquid, continues water pollutant to decompose under the effect of catalyzer, last current back pool, is drunk up by bend pipe 3 this process that repeats again.