CN103332762A - Quasi-molecular ultraviolet water lamp for water treatment system - Google Patents
Quasi-molecular ultraviolet water lamp for water treatment system Download PDFInfo
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- CN103332762A CN103332762A CN201310254498XA CN201310254498A CN103332762A CN 103332762 A CN103332762 A CN 103332762A CN 201310254498X A CN201310254498X A CN 201310254498XA CN 201310254498 A CN201310254498 A CN 201310254498A CN 103332762 A CN103332762 A CN 103332762A
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Abstract
The invention relates to a quasi-molecular ultraviolet water lamp for a water treatment system and belongs to the technical field of water treatment. The quasi-molecular ultraviolet water lamp is characterized in that a high-voltage metal electrode of the ultraviolet water lamp is fixed in a groove of an insulating medium groove; a discharging medium plate is fixed at the top of the insulating medium groove; a supporting element is arranged between the high-voltage metal electrode and the discharging medium plate; a discharging air gap is formed between the high-voltage metal electrode and the discharging medium plate; and a metal ground electrode is fixed at the end part of the outer side of the discharging medium plate; one end of a high-voltage and high-frequency power supply is connected with the high-voltage metal electrode, and the other end of the high-voltage and high-frequency power supply is connected with the metal ground electrode and then is contacted and grounded with a treated water body simultaneously. Compared with the prior art, the quasi-molecular ultraviolet water lamp disclosed by the invention has the advantages that the service life of the ultraviolet lamp is prolonged, and the efficiency of ultraviolet water treatment is improved.
Description
Technical field
The present invention relates to a kind of Excimer UV water lamp for water treatment system, belong to water-treatment technology field.
Background technology
Ultraviolet source is widely used in social production and the various fields in life as a kind of special source.Especially deactivation sterilization, the initiating chamical reaction for the bacteriophage of water, air and material surface decomposes organism.Up to the present, ultraviolet source still is the mercury vapor gas discharge light source mainly, and what radiation efficiency was the highest is the high atmospheric pressure mercury lamp that adopts the subatmospheric mercury lamp of quartz crust or pyrex glass bulb and adopt quartz crust.Though generally acknowledge that the ultraviolet system efficiency of immersion is the highest, but because ultraviolet mercury lamp all is to hang the use structure that is fixed in the air ambient in design at present, when being used for water treatment system, because electric insulation, surperficial high temperature, the easy dirt that bonds, so can only adopt the open channel open system architecture (OSA) mostly, ultraviolet ray needs therefore to cause efficient not high through the air admission water body.
In order to eliminate owing to ultraviolet mercury lamp production and to scrap mercury to the life-span of the pollution of environment and raising ultraviolet source, many explorations have been done at novel ultraviolet light source side face in countries in the world in recent years.The CN1160284 of GE " mercury-free ultraviolet discharge source ", this invention replaces mercury with rare gas elementes such as xenons, sees structure and the luminous ultimate principle of ionization of still not breaking away from traditional UV lamps from accompanying drawing and explanatory note.And the purple lamp of DBD quasi-molecule does not have filament etc. to influence the parts in life-span, working gas can be operated under the barometric point, there is not the mercury pollution future trouble, do not need the high temperature of evaporated metal steam again, board-like knot flexible design is not subjected to size, shape to cross multiple constraint, excimer light source is efficient and energy-conservation in addition, so attracted scientific and technological circle's eye.The people such as Liu Yang of electric light source institute of Fudan University in " traditional ultraviolet source and new ultra-violet light source " article of " light source and illumination " first phase in 2006 publication and Chinese Academy of Sciences's plasma people such as Xu Jinzhou all elaborations to some extent in " vacuum science and technology " magazine calendar year 2001s 7 monthly magazine " a kind of novel ultraviolet source---Excimer UV lamp " literary composition.
But in the above DBD ultraviolet lamp structure that reaches, the UV-light of the quasi-molecule radiation of the gas that is stimulated all must penetrate positive metal electrode, and this is very difficult.For favourable ultraviolet light passes through, thus metal electrode have to be made the hole pattern shape scheming to leak as much as possible ultraviolet light, yet the blank ratio of hole pattern electrode and effectively the contradiction of machining area can't solve, restricted the raising of the ultraviolet lamp technical indicator of this form.
Summary of the invention
The objective of the invention is to propose a kind of Excimer UV water lamp for water treatment system, at existing dielectric barrier discharge (Dielectric Barrier Discharge, hereinafter to be referred as DBD) in the ultraviolet lamp structure design, with water as electrode, with overcome arranging of battery lead plate in the prior art ultraviolet shielding line with the disadvantageous effect effective restraint machining area, improve the working efficiency of ultraviolet lamp.
The Excimer UV water lamp that is used for water treatment system that the present invention proposes, comprise metal ground electrode, discharge medium plate, high-pressure metal electrode, dielectric groove and high voltagehigh frequency power supply, described high-pressure metal electrode is fixed in the groove of dielectric groove, described discharge medium plate is fixed on the top of dielectric groove, be provided with support component between high-pressure metal electrode and the discharge medium plate, form discharge air-gap between high-pressure metal electrode and the discharge medium plate; The metal ground electrode is fixed on the outboard end of discharge medium plate, and an end of described high voltagehigh frequency power supply links to each other with the high-pressure metal electrode, and the other end of high voltagehigh frequency power supply contacts ground connection with the continuous back of metal ground electrode simultaneously with the processing water body.
The Excimer UV water lamp that is used for water treatment system that the present invention proposes, its advantage is, utilized the conductive characteristic of water, with the ground electrode of staying water while as the DBD discharging structure, be added in the high-frequency high-voltage between high-pressure metal battery lead plate and the water body, the working gas in the air gap can be excited into quasi-molecule, form ultraviolet radiation, mainly be near the vacuum ultraviolet (VUV) 172nm arrowband as the xenon excimer radiation, the radiation of visible light and infrared light part is less than 1%.Because the photon energy (7.2eV) of radiation greater than the bond energy of most of organic compound, therefore can directly make the organism in the water decompose mineralising.On the other hand, water and oxygen have very strong receptivity to vacuum ultraviolet, need not to use catalyzer just can generate OH-free radical and active oxygen, thereby initiating chamical reaction makes organism decompose mineralising.Excimer UV water lamp for water treatment system of the present invention, Excimer UV light penetrates the discharge medium plate and directly acts on water body and be not subjected to any stopping, therefore avoided arranging of battery lead plate in the prior art ultraviolet shielding line with the disadvantageous effect effective restraint machining area, thereby improved the working efficiency of apparatus for ultraviolet light treamtent further.In addition, because there is not the electric heating electrode, ultraviolet water light fixture has very long work-ing life in the Excimer UV water lamp of the present invention, and high-intensity uv-radiation makes the soft dirt on discharge medium plate surface to adhere to, and has significantly reduced the work maintenance of ultraviolet water lamp.Owing to the simple for structure and long lifetime of ultraviolet water lamp of the present invention, can be advantageously used in various types of water processing establishments, to adapt to the needs of various Working environments.
Description of drawings
Fig. 1 is the structural representation of the Excimer UV water lamp that is used for water treatment system that proposes of the present invention.
Fig. 2 is an Application Example of ultraviolet water lamp as shown in Figure 1.
Fig. 3 is the A-A synoptic diagram of Excimer UV water lamp shown in Figure 2.
Among Fig. 1-Fig. 3, the 1st, discharge medium plate, the 2nd, high-pressure metal electrode, the 3rd, support component, the 4th, discharge air-gap, the 5th, high voltagehigh frequency power supply, the 6th, metal ground electrode, the 7th, UV-light, the 8th, dielectric cell body.
Embodiment
The Excimer UV water lamp that is used for water treatment system that the present invention proposes, its structure comprises metal ground electrode 2, discharge medium plate 1, high-pressure metal electrode, dielectric groove and high voltagehigh frequency power supply 5 as shown in Figure 1.High-pressure metal electrode 2 is fixed in the groove of dielectric groove 8, discharge medium plate 1 is fixed on the top of dielectric groove 8, be provided with support component 3 between high-pressure metal electrode 2 and the discharge medium plate 1, form discharge air-gap between high-pressure metal electrode 2 and the discharge medium plate 1.Metal ground electrode 6 is fixed on the outboard end of discharge medium plate 1, and an end of high voltagehigh frequency power supply 5 links to each other with high-pressure metal electrode 2, and the other end of high voltagehigh frequency power supply 5 contacts ground connection with metal ground electrode 6 continuous backs simultaneously with the processing water body.
The Excimer UV water lamp that is used for water treatment system that the present invention proposes, wherein form accurate working gas gap between high-pressure metal electrode 2 and the discharge medium plate 1, this accurate working gas gap can be contained in the Excimer UV radiating gas that excites generation of high-frequency high-voltage; When described ultraviolet water lamp is submerged in the staying water, the ground electrode of power supply is introduced water body and is made water body and its equi-potential, therefore water body ground electrode, discharge medium plate, gas gap and high-pressure metal battery lead plate constitute a kind of typical DBD discharging structure, when high-pressure side and the high-pressure metal electrode of external power source are connected, the high voltagehigh frequency electricity excites the incoherence Excimer UV radiation that gas produces respective wavelength in the gap, penetrate the discharge medium plate and act on a large amount of negative hydroxyls of water body generation and active oxygens, decompose organic pollutant in the mineralized water, thus purifying water body.
The Excimer UV water lamp that is used for water treatment system that the present invention proposes, working gas is the mixed gas of rare gas element, metallic vapor, halogen gas or above-mentioned gas.The profile of Excimer UV water lamp can be tabular, circular arc or tubulose, and discharge medium plate wherein can be processed into flat board, circular arc or tubulose according to the difference of lamp body shape.Discharge medium plate wherein can be identical shaped sheet material, also can be to etch discharging gap and the support component that is complementary with above-mentioned shape through the finishing impression cold machining or according to needed figure.The material of discharge medium plate can be to the good material of the ultraviolet transparency of this wavelength such as synthetic quartz glass etc., when the discharge medium plate is synthetic pure quartz glass, regulate strength of electric field and frequency, when making average excitation electron energy reach 1-10eV, electron density is 10
13-10
16Cm
-3The time, an atmospheric xenon (Xe
2 *) can launch the ultraviolet ray of 172nm wavelength, photoelectric transformation efficiency is more than 20%, the highlyest in theory can reach 60%.The discharge medium plate bottom portion of groove degree of depth (discharge air-gap) is between 0.1mm-1.0mm.
An application example figure of the Excimer UV water lamp that is used for water treatment system that the present invention proposes as shown in Figure 2, wherein, insulation medium board 8 is by one flat plate glass, its two-sided dry method of passing through, methods such as wet etching or cold machining plain milling process groove and the step of the figure of the supporting member 3 that has band or loose the point, its trench bottom bonding stationary phase is connected to external high pressure high frequency electric source 5 with the metal electrode board 2 of figure and by the high pressure fixture wire, the synthetic quartz glass of the high saturating ultraviolet of discharge medium plate 1 usefulness is made, and embeds in the step of insulation medium board 8 and carries out the sealing-in sealing.Insulation medium board 8 is by forming the working clearance 4 between supporting member 3 and the discharge medium plate 1, the working clearances 4, middle being full of can produce the luminous gas working medium of quasi-molecule such as xenon.When the water lamp is immersed in the water, just form DBD dielectric barrier discharge structure between metal electrode 2, air gap 4, discharge medium plate 1 and the water body, the working gas in the working gas gap 4 excites at high-frequency and high-voltage just can produce 172nm Excimer UV light down.UV-light penetrates discharge medium plate synthetic quartz glass and directly acts in the required water body to be processed, and high-octane 172nm vacuum ultraviolet (VUV) directly excites water molecules to produce negative hydroxyl and active oxygen, efficiently clear up with the mineralising water body in organic pollutant.
Fig. 3 is the A-A synoptic diagram of Excimer UV water lamp shown in Figure 2, as can be seen from Figure 3, and the two-sided one-tenth mirror-image structure of board-like water lamp.The body junction member of this case study on implementation is insulation medium board 8, carries out ladder figure etching and processing on its two sides.Elder generation's etching and processing goes out the first layer groove that tabernacle embeds dielectric medium version 1, and then carry out the etching of second layer figure on the groove again, process groove and the supporting member 3 of discharge air-gap 4, carry out metalized at second stage bottom portion of groove at last and make high-pressure metal electrode 2, present case is to have the high-pressure metal electrode foil plate of the good supporting member hole of figure etching, to make at bottom portion of groove by the sizing agent pressurizing attaching.Discharge medium version 1 tabernacle is embedded in the first layer groove of insulation medium board 8, and sealing-in is carried out by low temperature glass solder in the surrounding, to guarantee the insulated enclosure performance in water.The dual-side of insulation medium board 8 is bonding firmly with metal ground electrode 7 embeddings of same shape by grinding flute in advance.Charge into the working gass such as xenon of barometric point in the air gap 4, and the outlet line 9 of high voltage electrode 2 is drawn through HV Terminal 10.
When this board-like ultraviolet water lamp is submerged in the pending water body, the metal ground electrode 6 contact water bodys of water lamp side make water body become equipotential ground electrode jointly, when the external high pressure high frequency electric source is connected between metal ground electrode 6 and the high-pressure metal electrode 2, water body (metal ground electrode 6), discharge medium plate 1(synthetic quartz plate), the common dielectric impedance silent discharge DBD structure of forming classics of working gas in high-pressure metal electrode 2 and the air gap, energy storage discharge at the discharge medium plate strengthens under the effect of electric field, it is luminous to be subjected to the electrically excited working gas generation Excimer UV of its high-frequency and high-voltage, penetrate the synthetic quartz plate and directly inject staying water, the high-energy vacuum-ultraviolet light directly excites water molecules to produce negative hydroxyl, the organic pollutant that active oxygen species etc. act in the water body efficiently clears up it so that mineralising.
Claims (1)
1. Excimer UV water lamp that is used for water treatment system, it is characterized in that this ultraviolet water lamp comprises metal ground electrode, discharge medium plate, high-pressure metal electrode, dielectric groove and high voltagehigh frequency power supply, described high-pressure metal electrode is fixed in the groove of dielectric groove, described discharge medium plate is fixed on the top of dielectric groove, be provided with support component between high-pressure metal electrode and the discharge medium plate, form discharge air-gap between high-pressure metal electrode and the discharge medium plate; The metal ground electrode is fixed on the outboard end of discharge medium plate, and an end of described high voltagehigh frequency power supply links to each other with the high-pressure metal electrode, and the other end of high voltagehigh frequency power supply contacts ground connection with the continuous back of metal ground electrode simultaneously with the processing water body.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244708A (en) * | 2017-07-28 | 2017-10-13 | 罗璐 | The water treatment facilities of water supply network terminal based on S VDBD |
| CN107253746A (en) * | 2017-07-28 | 2017-10-17 | 罗璐 | The water treatment facilities of water supply network terminal based on CSDBD |
| CN108328693A (en) * | 2018-04-21 | 2018-07-27 | 罗璐 | A kind of mixing electric discharge vacuum ultraviolet device and water treatment system |
Citations (5)
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| JPH0796278A (en) * | 1993-09-27 | 1995-04-11 | Senichi Masuda | Creeping discharge type ultraviolet element and fluid treatment apparatus using the same |
| CN2592631Y (en) * | 2002-08-28 | 2003-12-17 | 中国科学院等离子体物理研究所 | Quasi-molecule ultraviolet light source |
| CN201785237U (en) * | 2010-08-31 | 2011-04-06 | 四川省科学城中心科技有限公司 | DBD (dielectric barrier discharge) plasma hydroxyl radical generating device for waste water treatment |
| CN102595756A (en) * | 2012-03-15 | 2012-07-18 | 大连海事大学 | Generating device and generating method for gas-liquid mixed dielectric barrier discharge |
| CN102603029A (en) * | 2012-03-26 | 2012-07-25 | 东华大学 | Device for treating dye wastewater by dielectric barrier discharge technology and method thereof |
-
2013
- 2013-06-25 CN CN201310254498.XA patent/CN103332762B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0796278A (en) * | 1993-09-27 | 1995-04-11 | Senichi Masuda | Creeping discharge type ultraviolet element and fluid treatment apparatus using the same |
| CN2592631Y (en) * | 2002-08-28 | 2003-12-17 | 中国科学院等离子体物理研究所 | Quasi-molecule ultraviolet light source |
| CN201785237U (en) * | 2010-08-31 | 2011-04-06 | 四川省科学城中心科技有限公司 | DBD (dielectric barrier discharge) plasma hydroxyl radical generating device for waste water treatment |
| CN102595756A (en) * | 2012-03-15 | 2012-07-18 | 大连海事大学 | Generating device and generating method for gas-liquid mixed dielectric barrier discharge |
| CN102603029A (en) * | 2012-03-26 | 2012-07-25 | 东华大学 | Device for treating dye wastewater by dielectric barrier discharge technology and method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244708A (en) * | 2017-07-28 | 2017-10-13 | 罗璐 | The water treatment facilities of water supply network terminal based on S VDBD |
| CN107253746A (en) * | 2017-07-28 | 2017-10-17 | 罗璐 | The water treatment facilities of water supply network terminal based on CSDBD |
| CN108328693A (en) * | 2018-04-21 | 2018-07-27 | 罗璐 | A kind of mixing electric discharge vacuum ultraviolet device and water treatment system |
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| CN103332762B (en) | 2014-08-13 |
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Effective date of registration: 20180903 Address after: 100094 room 316, 1 building, 13 Cui Hunan Road, Haidian District, Beijing. Patentee after: Beijing Qingyuan in the Department of environmental protection science and technology limited company Address before: 102218 Changping District, Beijing Tiantongyuan north two district 33 33 Patentee before: Luo Lu |