CN101612545B - Photo-catalytic reaction device using ultrasonic for scale prevention and removal - Google Patents
Photo-catalytic reaction device using ultrasonic for scale prevention and removal Download PDFInfo
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- CN101612545B CN101612545B CN2009100412956A CN200910041295A CN101612545B CN 101612545 B CN101612545 B CN 101612545B CN 2009100412956 A CN2009100412956 A CN 2009100412956A CN 200910041295 A CN200910041295 A CN 200910041295A CN 101612545 B CN101612545 B CN 101612545B
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Abstract
The invention discloses a photo-catalytic reaction device using ultrasonic for scale prevention and removal. The device consists of a photo-catalytic reactor and an ultrasonic generator arranged on a base, as well as an electric cabinet; wherein the photo-catalytic reactor comprises a water inlet pipe, a sleeve, a metal mesh, bolts, gaskets, tube terminals, a power cord, a top cover, sleeve flanges, a water outlet pipe, a metal mesh support frame and an ultraviolet tube; a plurality of through-holes corresponding to the inner metal mesh layer are arranged on the outer surface of the sleeve along the axial direction in a bilateral symmetry way, and ultrasonic transducers are mounted at all the through-holes; a cleaning solution box is mounted on the top cover and communicated with the inner part of the sleeve; the ultrasonic transducers are connected to the ultrasonic generator via transmission cable wires; and a draining valve is mounted at the bottom of the sleeve. The invention can prevent the scale from forming in the inner metal mesh during the operating process of the photo-catalytic reactor, meanwhile, the invention can carry out shutdown scale removal on the inner wall of the sleeve of the photo-catalytic reactor and the inner metal mesh, thereby achieving the double effects of preventing the scale from forming and destroying the formed scale.
Description
Technical field
The present invention relates to a kind of photocatalytic reaction device that uses ultrasonic for scale prevention and removal.
Background technology
Along with the further investigation of photocatalytic oxidation, obtained success at photocatalysis metal material surface load photocatalyst, make that the photo catalysis reactor that is fit to large-scale industrial application is more and more.Composite photocatalyst metal material as the photo catalysis reactor core component has tridimensional network, and its activity and life-span are the key factors that can the decision photo catalysis reactor practicability.Because behind the reactor long time treatment water body, some adsorbate in the water body is preferentially adsorbed on activity of such catalysts position on the wire netting, form strong especially chemisorptive bond, make interior surface thereof all adsorb impurity such as a large amount of organic pollutions, inorganic ions and inorganic scale body, thereby cause catalyst activity to reduce, shorten life of catalyst, even completely lose, influence the subsequent optical catalytic reaction.Therefore, the antiscaling, descaling problem of photo catalysis reactor 3-dimensional metal net has caused increasing concern and attention.
At present, because the operating cost of periodic replacement reactor metal net is higher, the antiscaling, descaling mode of inside reactor wire netting mainly contains on-line continuous snaking and off-line shut-down snaking two big classes.The conventional method of on-line continuous snaking has the antisludging agent of injection method, permanent magnetism method, electromagnetic method and high-frequency method.Wherein antisludging agent needs to inject continuously, and each consumption is difficult to hold, and is bad during the scaling effect fashion; Then therefore three kinds of methods can not solve practical problem effectively because of cost height or performance difficulty.Off-line shut-down snaking usually is to carry out under unscheduled shut-down, the local shut-down of device or each equipment switching condition, and the various means that tradition adopts, as high-pressure water jet (mechanical snaking method) and chemical (chemical snaking method) etc., also just cure the symptoms, not the disease, not only caused influence, can increase unscheduled costs, erosion corrosion equipment, Polluted area environment, infringement workers ' health etc. simultaneously to production.
Therefore, the photocatalytic reaction device that seek a kind of energy-efficient, environmental friendliness, reduces cost is extremely urgent.
Summary of the invention
The deficiency that exists at the antiscaling, descaling method of above-mentioned photo catalysis reactor wire netting, the present invention proposes a kind of ultrasonic for scale prevention and removal device that is applicable to photo catalysis reactor interior three-dimensional wire netting, it utilizes the strong principle sound field of ultrasonic wave to handle fluid, make and become dirty material in the fluid under the ultrasonic field effect, a series of variations take place in its physical aspect and chemical property, make it dispersion, pulverizing, loose, get loose and be difficult for the adhesion metal net and form incrustation.
The technical solution adopted for the present invention to solve the technical problems is: a kind of photocatalytic reaction device that uses ultrasonic for scale prevention and removal is formed by being installed in photo catalysis reactor on the base 119 and supersonic generator 116 and electric cabinet 117; Described photo catalysis reactor includes water inlet pipe 101, sleeve 102, wire netting 105, bolt 106, pad 107, fluorescent tube binding post 108, power line 109, top cover 111, sleeve flange 112, outlet pipe 113, wire netting bracing frame 114, ultraviolet lamp tube 115; Described sleeve 102 is installed on the base 119, adopts cylindrical hollow shell structure; There is water inlet pipe 101 described sleeve 102 upper ends, and there is outlet pipe 113 lower end; Pad 107 is installed between described top cover 111 and the sleeve flange 112 and is used bolt 106 fastening; Described fluorescent tube binding post 108 uses power line 109 to connect power supply; The described sleeve 102 inner wire netting bracing frames 114 that use are divided into several layers with wire netting 105; Ultraviolet lamp tube 115 upper ends connect fluorescent tube binding post 108 and are installed on the top cover 111, and the fluorescent tube of ultraviolet lamp tube 115 part is passed the bottom that wire netting bracing frame 114 arrives sleeve 102 always along the center line of sleeve 102; The outer surface of described sleeve 102 has some and the corresponding through hole of interior metal stratum reticulare along axial left-right symmetry, and ultrasonic transducer 103 all is installed in the through hole; On the described top cover 111 cleaning fluid box 110 is installed, cleaning fluid box 110 communicates with sleeve 102 inside; Described ultrasonic transducer 103 uses transfer cable wire 104 to connect supersonic generator 116; The bottom position of described sleeve 102 is installed blowoff valve 118.
Described ultrasonic transducer 103 adopts piezoelectric ceramic transducer, includes ring flange 201, preceding vibrating mass 202, silastic-layer 203, dead ring 204, after vibration gutter 205, after vibration piece 206, stud 207, piezoelectric ceramic piece 208, electrode slice 209, preceding vibration stabilizing slot 210, screw hole 211, seal groove 212 and torsion mouth 213; Vibrating mass 202 and after vibration piece 206 are clipped in the middle piezoelectric ceramic piece 208 before described, and connect by stud 207; Described ring flange 201 is structure as a whole with preceding vibrating mass 202, ring flange 201 is complementary for concave and with the external surface shape of sleeve 102, on ring flange 201, have annular seal groove 212, and uniform screw hole 211 is arranged, by screw ultrasonic transducer 103 is installed in sleeve 102 lead to the hole site; The end surfaces of vibrating mass 202 is sphericals before described, helps increasing its hyperacoustic emission area.
Described transfer cable wire 104 adopts shielded cable, connects ultrasonic transducer again after the negative pole elder generation ground connection that supersonic generator 116 is drawn, and produces induction static in the time of can preventing the operation of this device.
Described supersonic generator 116 is installed in the apical position of electric cabinet 117.Described supersonic generator and electric cabinet are placed respectively, for the induction static electric field of avoiding them to produce separately forms the phase mutual interference.From convenient debugging, maintenance and maintenance angle, supersonic generator is placed in the apical position of electric cabinet.
Described cleaning fluid box 110 adopts the ABS plastic material to make, and described cleaning fluid adopts hydrocarbon cleaning fluid.
Described wire netting bracing frame 114 uses two kinds of different structures, and a kind of is that interior ring evenly distributes for the wire netting bracing frame of fluid flow circular hole, and another kind is that outer shroud evenly distributes for the wire netting bracing frame of fluid flow circular hole; Above-mentioned two kinds of different wire netting bracing frames are in sleeve 102 inner alternately installations.Two metalloid net bracing frames are alternately settled, and force the processing water body to wash away wire netting back and forth by two metalloid net bracing frames successively and up flow, and so just can increase the reaction contact area of handling water body and wire netting to greatest extent, handle purpose completely to reach.
Described wire netting 105 is a tridimensional network, and its area load has the composite of photocatalysis characteristic.
Described ultrasonic transducer is simple in structure, easy for installation, it adopts piezoelectric ceramic transducer, with preceding vibrating mass and after vibration piece piezoelectric ceramic piece is clipped in the middle, make by the tight connection of bolt, the employing bolt is connected and installed, and transducer heat radiation that can more effective help continuous operation prolongs service life of transducer.Tartar preventing iron tartar effect for assurance device, require each interior metal net to obtain the uniform sound intensity, for this reason, according to sleeve inner metal stratum reticulare ultrasonic transducer is divided into several layers, every layer of at least 2 symmetry are installed on the sleeve, every layer of required number of ultrasonic transducer can be according to the water quality situation of reactor for treatment water body, and the input power of transducer unit are is suitably adjusted.
Described blowoff valve is arranged on the cover tube bottom, is used for the dirt that clean deposition on the wire netting is got off is in time discharged.This blowoff valve adopts system to control automatically, when finish this turnaround of unit, opens sewage draining valve immediately, will deposit dirt and in time discharge under the impact of hydraulic pressure, eliminates the trouble and the error of manual detection to a certain extent.
The invention has the beneficial effects as follows: the present invention has not only solved the scale problems of photo catalysis reactor interior three-dimensional wire netting, and the oxygenous bubble that caused of purge reactor sleeve lining surface micropore to a certain extent, thereby alleviated the oxide etch of photo catalysis reactor sleeve pipe, prolonged photo catalysis reactor service life.
Apparatus of the present invention can be implemented in the formation that prevents interior metal net dirt in the photo catalysis reactor course of work; simultaneously can shut down scale removal, have the double action that prevents incrustation formation and destroy existing incrustation photo catalysis reactor sleeve lining and interior metal net.
In addition, apparatus of the present invention also are better than other antiscaling and descaling device at aspects such as automaticity, reliable working performance, non-environmental-pollution, operation and maintenance cost, photo catalysis reactor operating efficiency, prolongation photo catalysis reactor life-spans.
Description of drawings
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of apparatus of the present invention.
Label shown in the figure is: water inlet pipe 101, sleeve 102, ultrasonic transducer 103, transfer cable wire 104, wire netting 105, bolt 106, pad 107, fluorescent tube binding post 108, power line 109, cleaning fluid box 110, top cover 111, sleeve flange 112, outlet pipe 113, wire netting bracing frame 114, ultraviolet lamp tube 115, supersonic generator 116, electric cabinet 117, blowoff valve 118, base 119.
Fig. 2 is a ultrasonic transducer structural representation of the present invention.
Label shown in the figure is: ring flange 201, preceding vibrating mass 202, silastic-layer 203, dead ring 204, after vibration gutter 205, after vibration piece 206, stud 207, piezoelectric ceramic piece 208, electrode slice 209, preceding vibration stabilizing slot 210, screw hole 211, seal groove 212.
Fig. 3 is a ultrasonic transducer structure vertical view of the present invention.
Label shown in the figure is: torsion mouth 213.
The specific embodiment
A kind of photocatalytic reaction device of ultrasonic for scale prevention and removal that uses of the present invention mainly is made up of parts such as water inlet pipe 101, sleeve 102, ultrasonic transducer 103, transfer cable wire 104, wire netting 105, bolt 106, pad 107, fluorescent tube binding post 108, power line 109, cleaning fluid box 110, top cover 111, sleeve flange 112, outlet pipe 113, wire netting bracing frame 114, ultraviolet lamp tube 115, supersonic generator 116, electric cabinet 117, blowoff valve 118, bases 119.Apparatus of the present invention can be implemented in the formation that prevents interior metal net dirt in the photo catalysis reactor course of work; simultaneously can shut down scale removal, have the double action that prevents incrustation formation and destroy existing incrustation photo catalysis reactor sleeve lining and interior metal net.
During online antiscale, the operation of this device and blanking time thereof are to regulate control according to water quality treatment.In the photo catalysis reactor course of work, internal control module by electric cabinet 117 is sent instruction, control supersonic generator 116 partly produces required power signal with the alternating current of 220V, 50Hz through filtering, rectification, the control of power supply excitation waveform etc., be transferred to each ultrasonic echography wave transducer 103 through cable 104, owing to adopt the piezoelectric ceramic piece 208 that curie point is higher, conversion efficiency is high in the ultrasonic transducer 103, realize the conversion of electricity, machine, sound and send ultrasonic wave by ultrasonic transducer 103.In order to realize the high efficiency of ultrasound wave descaling, the frequency of ultrasonic phase place realizes from motion tracking, thereby make supersonic generator 116 and ultrasonic transducer 103 in optimum state work, and hyperacoustic power output can be carried out step-less adjustment according to different operating mode demands.Through hole on the sleeve 102 that the ultra sonic machinery vibration that transducer 103 produces is passed through imports inter-process water into, in water body, form the ultrasonic beam that line of radiation is propagated, propagate in mode continuously, in the ultrasonic wave communication process, can produce countless micro-bubbles and form negative pressure, and these bubbles break when recovering malleation, moment makes and produces tens to thousands of atmospheric pressures in the tiny area, constantly impact the surface and the hole of contaminated wire netting 105, prevent on the impurity adhesiving metal net 105 in the water body.Behind device operation certain hour, internal control module is sent instruction, the shearing device working power, and device quits work, and waits for operation beginning next time, so forms an online antiscale cycle.
When shutting down scale removal, the operation of this device and blanking time thereof are to regulate control according to wire netting 105 fouling degree.When needs were shut down scale removal, the internal control module of electric cabinet 117 was sent instruction, cut off the reactor working power, and photo catalysis reactor quits work, and sleeve 102 inner water bodys stop circulation.Simultaneously, control supersonic generator 116 arrives each ultrasonic transducer 103 with required power signal transmissions, through hole on the sleeve 102 that the ultra sonic machinery vibration that ultrasonic transducer 103 produces is passed through imports inter-process water into, utilize the strong sound field of ultrasonic wave to produce series of physical form and chemical property variation, make be hidden in soil dispersion in wire netting 105 surfaces and the internal void, pulverizing, loose, get loose, the realization dirt is fast, be eliminated up hill and dale.This device has been removed the oxygenous bubble that photo catalysis reactor sleeve pipe 102 inner wall surface micropores are caused to a certain extent when shutting down scale removal, thus the oxide etch that has alleviated photo catalysis reactor sleeve pipe 102.
Shut down scale removal simultaneously at device, open cleaning fluid box 110 bottom valves automatically, slowly inject cleaning fluid in the course of work, cleaning fluid constantly penetrates into the entire sleeve space, until the device end-of-job.When end-of-job, control module is sent instruction once more, closes cleaning fluid box 110 valves, opens blowoff valve 118 valves simultaneously, under the impact of hydraulic pressure the dirt that washes down is in time discharged.The setting-up time that reaches automatic control module is closed blowoff valve 118 immediately, and simultaneously, control module is sent instruction, connects the photo catalysis reactor working power, and reactor restarts work, once shuts down the scale removal cycle thereby finish, and constantly circulation so goes round and begins again.
Claims (7)
1. photocatalytic reaction device that uses ultrasonic for scale prevention and removal, this device is formed by being installed in photo catalysis reactor on the base and supersonic generator and electric cabinet; Described photo catalysis reactor includes water inlet pipe, sleeve, wire netting, bolt, pad, fluorescent tube binding post, power line, top cover, sleeve flange, outlet pipe, wire netting bracing frame, ultraviolet lamp tube; Described sleeve is installed on the base, adopts cylindrical hollow shell structure; There is water inlet pipe described sleeve upper end, and there is outlet pipe the lower end; Pad is installed between described top cover and the sleeve flange and is used bolted; Described fluorescent tube binding post uses power line to connect power supply; Described sleeve inner uses the wire netting bracing frame that wire netting is divided into several layers; The ultraviolet lamp tube upper end connects the fluorescent tube binding post and is installed on the top cover, and the fluorescent tube part of ultraviolet lamp tube is passed the bottom that the wire netting bracing frame arrives sleeve always along the center line of sleeve; It is characterized in that: the outer surface of described sleeve has some and the corresponding through hole of interior metal stratum reticulare along axial left-right symmetry, and ultrasonic transducer all is installed in the through hole; The cleaning fluid box is installed on the described top cover, and the cleaning fluid box communicates with sleeve inner; Described ultrasonic transducer uses transfer cable wire to connect supersonic generator; The bottom position of described sleeve is installed blowoff valve.
2. photocatalytic reaction device according to claim 1, described ultrasonic transducer adopts piezoelectric ceramic transducer, includes ring flange, preceding vibrating mass, silastic-layer, dead ring, after vibration gutter, after vibration piece, stud, piezoelectric ceramic piece, electrode slice, preceding vibration stabilizing slot, screw hole, seal groove and torsion mouth; Vibrating mass and after vibration piece are clipped in the middle piezoelectric ceramic piece before described, and connect by stud; It is characterized in that: described ring flange and preceding vibrating mass are structure as a whole, ring flange is concave and is complementary with the external surface shape of sleeve, on ring flange, have annular seal groove, and uniform screw hole is arranged, ultrasonic transducer is installed in the sleeve lead to the hole site by screw; The end surfaces of vibrating mass is a spherical before described.
3. photocatalytic reaction device according to claim 1 is characterized in that: described transfer cable wire adopts shielded cable, connects ultrasonic transducer again after the negative pole elder generation ground connection that supersonic generator is drawn.
4. photocatalytic reaction device according to claim 1 is characterized in that: described supersonic generator is installed in the apical position of electric cabinet.
5. photocatalytic reaction device according to claim 1 is characterized in that: described cleaning fluid box adopts the ABS plastic material to make, and injects cleaning fluid in the cleaning fluid box, and described cleaning fluid adopts hydrocarbon cleaning fluid.
6. photocatalytic reaction device according to claim 1, it is characterized in that: described wire netting bracing frame uses two kinds of different structures, a kind of is that interior ring evenly distributes for the wire netting bracing frame of fluid flow circular hole, and another kind is that outer shroud evenly distributes for the wire netting bracing frame of fluid flow circular hole; Above-mentioned two kinds of different wire netting bracing frames are alternately installed in sleeve inner.
7. photocatalytic reaction device according to claim 1 is characterized in that: described wire netting is a tridimensional network, and its area load has the composite of photocatalysis characteristic.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100412956A CN101612545B (en) | 2009-07-21 | 2009-07-21 | Photo-catalytic reaction device using ultrasonic for scale prevention and removal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100412956A CN101612545B (en) | 2009-07-21 | 2009-07-21 | Photo-catalytic reaction device using ultrasonic for scale prevention and removal |
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| CN101612545A CN101612545A (en) | 2009-12-30 |
| CN101612545B true CN101612545B (en) | 2011-09-07 |
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| CN102616884B (en) * | 2012-03-30 | 2014-04-02 | 宁波大学 | Microwave photocatalytic degradation treatment device for industrial wastewater containing organic pollutants |
| CN103359859B (en) * | 2013-07-18 | 2016-03-09 | 李榕生 | Initiatively can supervise the high throughput photocatalytic waste water degradation reactor of lamp source state |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2647446Y (en) * | 2003-10-27 | 2004-10-13 | 安徽铜都特种环保设备股份有限公司 | Ultrasonic cleaning device for ceramic filter |
| US6841095B2 (en) * | 2000-09-08 | 2005-01-11 | Accentus Plc | Chemical process and plant |
| CN201164757Y (en) * | 2007-12-04 | 2008-12-17 | 核工业烟台同兴实业有限公司 | Ultrasonic cleaning apparatus of filter |
| CN201482478U (en) * | 2009-07-21 | 2010-05-26 | 广东工业大学 | Photocatalytic reaction apparatus using ultrasonic waves to prevent and remove scale |
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- 2009-07-21 CN CN2009100412956A patent/CN101612545B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6841095B2 (en) * | 2000-09-08 | 2005-01-11 | Accentus Plc | Chemical process and plant |
| CN2647446Y (en) * | 2003-10-27 | 2004-10-13 | 安徽铜都特种环保设备股份有限公司 | Ultrasonic cleaning device for ceramic filter |
| CN201164757Y (en) * | 2007-12-04 | 2008-12-17 | 核工业烟台同兴实业有限公司 | Ultrasonic cleaning apparatus of filter |
| CN201482478U (en) * | 2009-07-21 | 2010-05-26 | 广东工业大学 | Photocatalytic reaction apparatus using ultrasonic waves to prevent and remove scale |
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