CN202542934U - Dielectric barrier discharge water treatment device - Google Patents

Dielectric barrier discharge water treatment device Download PDF

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Publication number
CN202542934U
CN202542934U CN2012200991744U CN201220099174U CN202542934U CN 202542934 U CN202542934 U CN 202542934U CN 2012200991744 U CN2012200991744 U CN 2012200991744U CN 201220099174 U CN201220099174 U CN 201220099174U CN 202542934 U CN202542934 U CN 202542934U
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China
Prior art keywords
electrode
dielectric barrier
barrier discharge
water
treatment device
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Withdrawn - After Issue
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CN2012200991744U
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Chinese (zh)
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孙冰
朱小梅
严志宇
宋丹
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Dalian Maritime University
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Dalian Maritime University
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Abstract

The utility model discloses a dielectric barrier discharge water treatment device. The dielectric barrier discharge water treatment device comprises a high-voltage high-frequency pulse power supply, a tin foil high-voltage electrode, a quartz medium cylinder, a copper tube grounding electrode, a suspension electrode and an insulation board, wherein the suspension electrode is cylindrical; the inner diameter of the suspension electrode is larger than the outer diameter of the copper tube grounding electrode; and the central axis of the suspension electrode and the central axis of the copper tube grounding electrode are collinear. Water enters the copper tube grounding electrode through a water inlet in the center of the insulation board, overflows from the upper end of the copper tube grounding electrode, forms a flowing water membrane on the outer wall of the copper tube grounding electrode and is discharged from a water outlet at the lower end of the quartz medium cylinder. Water directly serves as an auxiliary grounding electrode and active substances in the generated plasma can be directly transferred to the water, so that the mass transfer efficiency is high and the required time is short. When the dielectric barrier discharge water treatment device is used for treating waste water, the waste water is treated in a flowing mode, the speed of the water flow can be adjusted, the waste water can be treated at one time and can also be treated repeatedly in a circulating mode, and the operability is high in the actual application process.

Description

A kind of dielectric barrier discharge water treatment device
Technical field
The utility model belongs to low-temperature plasma generation technique and field of water processing technology, relates to the device that a kind of high voltagehigh frequency pulse gas-liquid mixed media barrier discharge plasma is handled waste water.
Background technology
Water resource pollution is one of urgent problem of generally facing of countries in the world; And its degradating trend grows in intensity; Make the traditional biological chemical treatment method be difficult to solve fully the problems that water pollutes, remove mikrobe, degraded persistence organic pollutant etc. like denitrogenation dephosphorizing, decolouring and deodorizing, sterilization.
High-voltage pulse dielectric barrier discharge plasma with embedded electrode in the liquid is handled waste water, more effectively and more cheaply administers technology as one, and important practical value is arranged.This technology is positioned over block media between the electrode; Two electrodes are separated; When between two electrodes, applying high-voltage pulse, the gas of electrode gap will puncture, and produces a large amount of trickle fast pulse discharge channels; Pass through in the process of passage the spontaneously emitted in ultraviolet radiation of some excited atoms and molecule at electronics.The low-temperature plasma of discharge generation acts on the trade effluent that is processed and the difficult for biological degradation pollutent in the dyeing waste water, have that treatment effect is good, decolouring rapidly, characteristics such as non-secondary pollution.And dielectric barrier discharge has evenly, disperses and stable characteristics; The electron energy that in the dielectric barrier discharge process, produces is far above the mean electron energy value of corona discharge, spark discharge; Can fully make organic molecule, water molecules, oxygen molecule produce ionization, thereby inspire the higher particle of many activity, C-C key and unsaturated link(age) in these active substances and the high-energy electron bombardment pollution substance thereof; Series reaction such as scission of link and open loop take place; Make the macromole toxic substance become the small molecules safe material, so its removal the most at last, make waste water innoxious.Therefore, high-voltage pulse dielectric barrier discharge plasma processing waste water technology is with a wide range of applications.Though oneself has some the dielectric barrier discharge technology to be applied to the research of wastewater treatment; But it is in gas, to produce dielectric barrier discharge that conventional high-tension pulsating medium barrier discharge plasma is handled the method for waste water; The plasma gas that produces feeds in the water through mass transfer process and carries out WWT, have that mass-transfer efficiency is low, the short life material effectively mass transfer, cost height, problem such as can not handle continuously.Therefore develop that a kind of mass-transfer efficiency is high, pollutant removing efficient is high, cost is low, can processed continuously dielectric barrier discharge water technology and install significant.
Summary of the invention
Be to solve the problems referred to above that prior art exists, the purpose of the utility model provide a kind of mass-transfer efficiency high, can handle continuously, pollutant removing efficient is high, cost is low dielectric barrier discharge water treatment device.
For achieving the above object, the technical scheme of the utility model is following:
A kind of dielectric barrier discharge water treatment device comprises the high voltagehigh frequency pulse power, tinfoil high voltage terminal, quartz medium cylinder, copper pipe ground-electrode, suspension electrode and insulcrete; Described quartz medium cylinder and insulcrete anabolic reaction device, quartz medium cylinder are that reactor shell, insulcrete are reactor bottom; The lower end of copper pipe ground-electrode is fixed on the insulcrete of reactor bottom, its upper end is connected with the high voltagehigh frequency pulse power through cable; Described suspension electrode is shaped as cylinder, and its internal diameter is greater than the external diameter of copper pipe ground-electrode, the central axis conllinear of its central axis and copper pipe ground-electrode; Described tinfoil high voltage terminal is arranged on the outer side surface of quartz medium cylinder, and is connected with the high voltagehigh frequency pulse power through cable; Described insulcrete center has water-in and links to each other with inlet channel; Described quartz medium cylinder has water outlet near the position of lower end and links to each other with outlet conduit; Pending water gets into the copper pipe ground-electrode through the water-in at insulcrete center, and overflows from the upper end of copper pipe ground-electrode, at the outer wall formation mobile moisture film of copper pipe ground-electrode, after the water outlet discharge of quartz medium cylinder lower end.
The lower end and the insulcrete of the described quartz medium cylinder of the utility model are tightly connected, and the lower end and the insulcrete of described copper pipe ground-electrode are tightly connected.
The internal diameter of the described suspension electrode of the utility model is greater than copper pipe external diameter 0.1-4.0mm.
Distance between described quartz medium cylinder inner wall of the utility model and the moisture film is 0.1-9.0mm.
The described water film thickness of the utility model is 0.1-4.0mm.
The PV of the described high voltagehigh frequency pulse power of the utility model is 1-60kV, frequency 1-30kHz.
The described suspension electrode of the utility model is netted suspension electrode.
The material of the described netted suspension electrode of the utility model is insulating material or metallic substance.
The material of the described copper pipe ground-electrode of the utility model replaces with other metallic substance.
The described tinfoil high voltage terminal of the utility model material replaces with other metallic substance.
The ultimate principle of the utility model is following: pending waste water is fed in the copper pipe ground-electrode pipe by water inlet pipe; Waste water overflows from the copper pipe ground-electrode outside after being full of the copper pipe ground-electrode; Form certain thickness mobile moisture film in the copper pipe ground-electrode outside, suspension electrode is installed in the moisture film outside.When on tinfoil high voltage terminal and copper pipe ground-electrode, applying sufficiently high voltage of alternating current; Two interelectrode gases are breakdown and form dielectric barrier discharge, and the existence of suspension electrode can be avoided the stability of the influence of fluctuations dielectric barrier discharge of moisture film in the discharge process.Therefore, this dielectric barrier discharge shows as evenly, disperses and stablizes, and seems to be hypobaric photoglow.When the waste water dielectric barrier discharge plasma produces, electronics under the effect of extra electric field with the gas molecule frequent impact, quick travel is also carried out the mutual transmission of energy.The electronics of high-speed motion and ion enlarge electrical discharge zone rapidly, produce the thread discharge channel of a permeate discharge spatial high conductivity at last, until the waste water water film surface.The Athermal plasma that dielectric barrier discharge produces is distributed in the thread discharge channel of permeate discharge spatial, can make gas generation ionization, produces various living radicals or charged atom and group, like OH, O 3, O, H 2O 2Deng, integral body has strong oxidizing property, and directly mass transfer is in the waste water moisture film.Simultaneously, electrochemical reaction can take place not only as medium but also as supplementary ground electrode in waste water moisture film simultaneously in waste water.C-C key and unsaturated link(age) in living radical in the reaction process and the high-energy electron bombardment pollution substance; Series reaction such as scission of link and open loop take place; Make larger molecular organics become the small molecules inorganics, so its removal the most at last, make pollutants in waste water remove, innoxious.Finally, the waste water after the processing is through the rising pipe outflow reactor.
Compared with prior art, the utlity model has following beneficial effect:
1, the utility model is directly assisted as one with waste water and is connect earthing pole, and directly mass transfer is in water for active substance in the plasma body of generation, and mass-transfer efficiency is high, and required time is short.
2, as supplementary ground electrode, specific heat capacity is very big with water for the utility model, makes the temperature of discharge system can be too not high, and water plays the refrigerative effect, can make the heat radiation of discharge system evenly, more helps the stability of discharging.
3, the utility model adopts the design of suspension electrode, has reduced the drawing force of electric field to water molecules, and the mobile water film surface is steady in the time of can making discharge, discharge evenly, problems such as shelf depreciation of having avoided liquid to splash causing on the block media surface and short circuit.Under identical discharging gap, increase suspension electrode, PV and frequency in the time of can reducing even the discharge cut down the consumption of energy, and the damage that reduces electrode is useless.Same electrical is depressed, because water flow stationary can reduce the discharge spacing, makes waste water under the identical treatment time, and pollutant removing efficient improves.
4, the utility model is when handling waste water, and waste water is flowable to be processed, and flow velocity is adjustable, both can disposable processing waste water, and repeatedly Continuous Wastewater Treatment capable of circulation again, workable in actual application.
5, the utility model technology is advanced, stable, simple to operate, under atmospheric pressure can move, and equipment is easy to management, has stronger practicality, economy.
Description of drawings
The utility model has accompanying drawing 2 width of cloth, wherein:
Fig. 1 is a dielectric barrier discharge water treatment device synoptic diagram.
Fig. 2 is a dielectric barrier discharge water treatment device discharge synoptic diagram.
Among the figure: 1, the high voltagehigh frequency pulse power, 2, the tinfoil high voltage terminal, 3, the quartz medium cylinder, 4, the copper pipe ground-electrode, 5, suspension electrode, 6, insulcrete.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is explained further details: shown in Fig. 1-2; A kind of dielectric barrier discharge water treatment device comprises the high voltagehigh frequency pulse power 1, tinfoil high voltage terminal 2, quartz medium cylinder 3, copper pipe ground-electrode 4, suspension electrode 5 and insulcrete 6; Described quartz medium cylinder 3 and insulcrete 6 anabolic reaction devices, quartz medium cylinder 3 are that reactor shell, insulcrete 6 are reactor bottom; The lower end of copper pipe ground-electrode 4 is fixed on the insulcrete 6 of reactor bottom, its upper end is connected with the high voltagehigh frequency pulse power 1 through cable; Described suspension electrode 5 is shaped as cylinder, and its internal diameter is greater than the external diameter of copper pipe ground-electrode 4, the central axis conllinear of its central axis and copper pipe ground-electrode 4; Described tinfoil high voltage terminal 2 is arranged on the outer side surface of quartz medium cylinder 3, and is connected with the high voltagehigh frequency pulse power 1 through cable; Described insulcrete 6 centers have water-in and link to each other with inlet channel; Described quartz medium cylinder 3 has water outlet near the position of lower end and links to each other with outlet conduit; Pending water gets into copper pipe ground-electrode 4 through the water-in at insulcrete 6 centers, and overflows from the upper end of copper pipe ground-electrode 4, and forms the mobile moisture film at the outer wall of copper pipe ground-electrode 4, after the water outlet discharge of quartz medium cylinder 3 lower ends.The lower end of described quartz medium cylinder 3 and insulcrete 6 are tightly connected, and the lower end of described copper pipe ground-electrode 4 and insulcrete 6 are tightly connected.The internal diameter of described suspension electrode 5 is greater than copper pipe external diameter 0.1-4.0mm.Distance between described quartz medium cylinder 3 inwalls and the moisture film is 0.1-9.0mm.Described water film thickness is 0.1-4.0mm.The PV of the described high voltagehigh frequency pulse power 1 is that the described suspension electrode 5 of 1-60kV, frequency 1-30kHz is netted suspension electrodes 5.The material of described netted suspension electrode 5 is insulating material or metallic substance.The material of described copper pipe ground-electrode 4 replaces with other metallic substance.Described tinfoil high voltage terminal 2 materials replace with other metallic substance.
As reactor shell, internal diameter is 100mm, high 1000mm, thickness of pipe 3mm to the utility model with quartz medium cylinder 3, and the 2mm circular hole is opened in quartz medium cylinder 3 bottoms, picks out water pipe.Make ground electrode with copper pipe ground-electrode 4, external diameter 80mm, high 900mm, thickness 2mm.Enclosing suspension electrode 5 greater than copper pipe external diameter 4mm place around arrangement one, guaranteeing that current are even, preventing that spray from splashing on the inwall of quartz medium cylinder 3, causes discharge short.Discharge space is between the inwall and moisture film of quartz medium cylinder 3, and spacing is 5mm.Reactor enclosure is external to have tinfoil high voltage terminal 4, high 670mm, thick 0.1mm.Reactor bottom is an insulcrete 6, and circular hole is opened at insulcrete 6 centers, is installed into water pipe, and the control water film thickness is 1-2mm.
Under atmospheric pressure, in reactor drum, feed phenolic wastewater, electrical conductivity of solution is 4 μ Scm -1, discharge frequency 8kHz, PV 20kV, during waste water flow velocity 40mL/min, the decreasing ratio of phenolic wastewater>80%.The utility model utilizes the high voltagehigh frequency pulse power 1; The dielectric impedance gas-liquid mixed discharge can take place under highfield, produces the active substance of high density in the solution, fully organic substance in the degradation water; Solve waste water sterilization and disinfection, decolouring and deodorizing problem; And cost is low, and the treatment time is short, energy-saving and emission-reduction.

Claims (8)

1. a dielectric barrier discharge water treatment device is characterized in that: comprise the high voltagehigh frequency pulse power (1), tinfoil high voltage terminal (2), quartz medium cylinder (3), copper pipe ground-electrode (4), suspension electrode (5) and insulcrete (6); Described quartz medium cylinder (3) and insulcrete (6) anabolic reaction device, quartz medium cylinder (3) are that reactor shell, insulcrete (6) are reactor bottom; The lower end of copper pipe ground-electrode (4) is fixed on that the insulcrete (6) of reactor bottom is gone up, its upper end is connected with the high voltagehigh frequency pulse power (1) through cable; Described suspension electrode (5) is shaped as cylinder, and its internal diameter is greater than the external diameter of copper pipe ground-electrode (4), the central axis conllinear of its central axis and copper pipe ground-electrode (4); Described tinfoil high voltage terminal (2) is arranged on the outer side surface of quartz medium cylinder (3), and is connected with the high voltagehigh frequency pulse power (1) through cable; Described insulcrete (6) center has water-in and links to each other with inlet channel; Described quartz medium cylinder (3) has water outlet near the position of lower end and links to each other with outlet conduit; Pending water gets into copper pipe ground-electrode (4) through the water-in at insulcrete (6) center; And overflow from the upper end of copper pipe ground-electrode (4); Outer wall at copper pipe ground-electrode (4) forms the mobile moisture film, after the water outlet discharge of quartz medium cylinder (3) lower end.
2. a kind of dielectric barrier discharge water treatment device according to claim 1; It is characterized in that: the lower end of described quartz medium cylinder (3) and insulcrete (6) are tightly connected, and the lower end of described copper pipe ground-electrode (4) and insulcrete (6) are tightly connected.
3. a kind of dielectric barrier discharge water treatment device according to claim 1 is characterized in that: the internal diameter of described suspension electrode (5) is greater than copper pipe external diameter 0.1-4.0mm.
4. a kind of dielectric barrier discharge water treatment device according to claim 1 is characterized in that: the distance between described quartz medium cylinder (3) inwall and the moisture film is 0.1-9.0mm.
5. a kind of dielectric barrier discharge water treatment device according to claim 1 is characterized in that: described water film thickness is 0.1-4.0mm.
6. a kind of dielectric barrier discharge water treatment device according to claim 1 is characterized in that: the PV of the described high voltagehigh frequency pulse power (1) is 1-60kV, frequency 1-30kHz.
7. a kind of dielectric barrier discharge water treatment device according to claim 1 is characterized in that: described suspension electrode (5) is netted suspension electrode (5).
8. a kind of dielectric barrier discharge water treatment device according to claim 1 is characterized in that: the material of described netted suspension electrode (5) is insulating material or metallic substance.
CN2012200991744U 2012-03-15 2012-03-15 Dielectric barrier discharge water treatment device Withdrawn - After Issue CN202542934U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102583656A (en) * 2012-03-15 2012-07-18 大连海事大学 Dielectric barrier discharge water treatment device
CN105731698A (en) * 2014-12-12 2016-07-06 青岛清泉生物科技有限公司 A novel fine-drinking-water purifier
CN107896413A (en) * 2017-12-07 2018-04-10 南京苏曼等离子科技有限公司 The dielectric impedance low-temperature plasma device and method of work of liquid waterfall type processing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102583656A (en) * 2012-03-15 2012-07-18 大连海事大学 Dielectric barrier discharge water treatment device
CN102583656B (en) * 2012-03-15 2014-02-05 大连海事大学 Dielectric barrier discharge water treatment device
CN105731698A (en) * 2014-12-12 2016-07-06 青岛清泉生物科技有限公司 A novel fine-drinking-water purifier
CN105731698B (en) * 2014-12-12 2020-12-11 金华优正科技有限公司 Direct-drinking water purifier
CN107896413A (en) * 2017-12-07 2018-04-10 南京苏曼等离子科技有限公司 The dielectric impedance low-temperature plasma device and method of work of liquid waterfall type processing

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Granted publication date: 20121121

Effective date of abandoning: 20140205

RGAV Abandon patent right to avoid regrant