CN103537245B - A kind of Venturi ionization device for the preparation of hydroxyl radical free radical - Google Patents
A kind of Venturi ionization device for the preparation of hydroxyl radical free radical Download PDFInfo
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- CN103537245B CN103537245B CN201310527469.6A CN201310527469A CN103537245B CN 103537245 B CN103537245 B CN 103537245B CN 201310527469 A CN201310527469 A CN 201310527469A CN 103537245 B CN103537245 B CN 103537245B
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Abstract
The present invention relates to a kind of Venturi ionization device for the preparation of hydroxyl radical free radical, belong to plasma chemistry, biology and field of environmental technology.Should for the preparation of the Venturi ionization device of hydroxyl radical free radical, this Venturi ionization device described comprises the ionization device body be made up of ionization chamber and venturi chamber, venturi chamber is column type, fluid can be passed in venturi chamber, ionization chamber is positioned at venturi chamber periphery, coaxial sleeve is connected to form with venturi chamber, ionization chamber comprises discharge electrode, earthing pole, the dielectric of next-door neighbour's discharge electrode and gas passage, steam is passed into from ionization chamber, venturi chamber comprises venturi wall, the sectional area width that venturi chamber forms cavity according to venturi wall is divided into straight length I, straight length II, contraction section I, contraction section II, contraction section I, contraction section II is connected by throat, ionization chamber is communicated with by negative tube with throat.This device utilizes Venturi effect, produces negative pressure in throat, and the hydroxyl radical free radical that steam produces is drawn into venturi.
Description
Technical field
The present invention relates to a kind of Venturi ionization device for the preparation of hydroxyl radical free radical, belong to plasma chemistry, biology and field of environmental technology.
Background technology
Hydroxyl radical free radical is the extremely strong atomic cluster species of a kind of oxidisability, oxidizing potential is 2.80eV, the fluorine (its oxidizing potential be 2.87eV) the strongest with occurring in nature oxidability is suitable, and its chemical reaction belongs to radical reaction, speed is exceedingly fast, consumption is low, almost can at all organic matter of extremely short time internal oxidition, until permineralization, therefore, hydroxyl radical free radical be a kind ofly can be used for processing industrial sanitary sewage waste gas completely, the Perfected process of purify air, the kill aspects such as tiny organism, bacterium or sterilization.
Prepare hydroxyl free based method at present: during the hydroxyl radical free radical that (1) uses catalyst method to produce, catalyst recovery recycling is difficult, easily causes secondary pollution; (2) hydroxy free radical concentration not using catalyst method to produce is on the low side, does not meet industrial wastewater exhaust-gas treatment, purifies air, and kills the demands such as tiny organism, bacterium or virus; (3) when ionizing moisture vapor gas generation hydroxyl radical free radical, because discharging gap is very narrow and small, water vapour is large on discharge stability impact, when voltage is low, be difficult to form highfield, hydroxy free radical concentration is low, during voltage height, as easy as rolling off a logly cause generator punch through damage accident.
Ionizing moisture vapor gas in prior art, to produce hydroxyl radical free radical equipment volume large, one-time investment and operating cost high.
Summary of the invention
For above-mentioned prior art Problems existing and deficiency, the invention provides a kind of Venturi ionization device for the preparation of hydroxyl radical free radical.This device adopts ionization chamber and venturi chamber to combine, the hydroxyl radical free radical that in ionization chamber, ionizing water steam produces is made to make use of Venturi effect in gas passage, namely when fluid with certain data rate stream through throat time produce negative pressure, hydroxyl radical free radical is made to enter venturi chamber, in venturi chamber, fluid mixes fully with hydroxyl radical free radical, this device amasss little, one-time investment and operating cost low, the present invention is achieved through the following technical solutions.
A kind of Venturi ionization device for the preparation of hydroxyl radical free radical, this Venturi ionization device described comprises the ionization device body 16 be made up of ionization chamber 4 and venturi chamber 15, venturi chamber 15 is column type, fluid can be passed in venturi chamber 15, it is peripheral that ionization chamber 4 is positioned at venturi chamber 15, coaxial sleeve is connected to form with venturi chamber 15, ionization chamber 4 comprises discharge electrode 1, earthing pole 2, the dielectric 3 of next-door neighbour's discharge electrode 1 and gas passage, steam is passed into from ionization chamber 4, venturi chamber 15 comprises venturi wall 5, the sectional area width that venturi chamber 15 forms cavity according to venturi wall 5 is divided into straight length I 11, straight length II 14, contraction section I 12, contraction section II 13, contraction section I 12, contraction section II 13 is connected by throat 6, ionization chamber 4 is communicated with by negative tube 7 with throat 6.
Described gas passage one end is also provided with adjustable gas passway 9.
Described ionization chamber 4 outside is provided with annular insulation sleeve 8 and annular insulating support 10.
Described discharge electrode 1 is 0.05 ~ 5mm with earthing pole 2 die opening, and electric-field intensity is more than 350Td.
The material of described discharge electrode 1, earthing pole 2 is stainless steel or alloy.
Described fluid is liquid or gas.
Should be for the preparation of using method of the Venturi ionization device of hydroxyl radical free radical: (1) as shown in Figure 1, when fluid be gas or liquid time, first discharge electrode 1 is connect high voltage source, earthing pole 2 connects the earth, then steam is entered ionization chamber 4 by adjustable gas passway 9, and ionization is hydroxyl radical free radical, simultaneously by with fluid enter venturi chamber 15 by straight length II 14, when fluid is from straight length II 14, contraction section II 13 produces negative pressure when flowing into throat 6, hydroxyl radical free radical will be inhaled into throat 6 from negative tube 7, fluid mixes with the hydroxyl radical free radical of ionization, then flow out from straight length I 11, (2) as shown in Figure 2, when fluid is gas, first discharge electrode 1 is connect high voltage source, earthing pole 2 connects the earth, then steam is entered ionization chamber 4 by adjustable gas passway 9, and ionization is hydroxyl radical free radical, simultaneously by with fluid enter venturi chamber 15 by straight length II 14, when fluid produces negative pressure from straight length II 14, contraction section II 13 when flowing into throat 6, hydroxyl radical free radical will be inhaled into throat 6 from negative tube 7, fluid mixes with the hydroxyl radical free radical of ionization, then flows out from straight length I 11.
Fluid can be pure fluid also can be the contaminated-fluid needing to kill the demands such as tiny organism, bacterium or virus.When fluid is pure fluid, flows to again contaminated air or water and kill tiny organism, bacterium or virus after the pure fluid flowed into from straight length II 14 mixes with the hydroxyl radical free radical of ionization; When fluid is contaminated-fluid, that directly just can carry out killing tiny organism, bacterium or virus in the apparatus, and the fluid flowed out from pipeline section I 11 will be cleaned.
Rate of flow of fluid can regulate according to throat's negative pressure requirements.
The invention has the beneficial effects as follows: (1) this device utilizes Venturi effect, negative pressure is produced in throat, moisture vapor gas is sucked discharge cavity, under strong ionization discharge effect, form high concentration hydroxyl radical free radical, then better mix with fluid in throat, this device amasss little, one-time investment and operating cost low; Not only (2) if when fluid is contaminated-fluid, this device plays the effect that ionization produces hydroxyl free but also plays purification, and merged by two kinds of devices, efficiency is higher, and cost is lower.
Accompanying drawing explanation
Fig. 1 be the present invention work as fluid be gas or liquid time apparatus structure schematic diagram;
Fig. 2 is the apparatus structure schematic diagram that the present invention works as when fluid is liquid.
In figure: 1-discharge electrode, 2-earthing pole, 3-dielectric, 4-ionization chamber, 5-venturi wall, 6-throat, 7-negative tube, 8-annular insulation sleeve, 9-adjustable gas passway, 10-annular insulating support, 11-straight length I, 12-contraction section I, 13-contraction section II, 14-straight length II, 15-venturi chamber, 16-ionization device body, A-fluid inflow direction, B-steam inflow direction, C-hydroxyl radical free radical flows out direction, and D-fluid and hydroxyl radical free radical mixing material flow out direction.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1
As shown in Figure 1, should for the preparation of the Venturi ionization device of hydroxyl radical free radical, this Venturi ionization device described comprises the ionization device body 16 be made up of ionization chamber 4 and venturi chamber 15, venturi chamber 15 is column type, fluid can be passed in venturi chamber 15, it is peripheral that ionization chamber 4 is positioned at venturi chamber 15, coaxial sleeve is connected to form with venturi chamber 15, ionization chamber 4 comprises discharge electrode 1, earthing pole 2, the dielectric 3 of next-door neighbour's discharge electrode 1 and gas passage, steam is passed into from ionization chamber 4, venturi chamber 15 comprises venturi wall 5, the sectional area width that venturi chamber 15 forms cavity according to venturi wall 5 is divided into straight length I 11, straight length II 14, contraction section I 12, contraction section II 13, contraction section I 12, contraction section II 13 is connected by throat 6, ionization chamber 4 is communicated with by negative tube 7 with throat 6.
Wherein gas passage one end is also provided with adjustable gas passway 9; Ionization chamber 4 outside is provided with annular insulation sleeve 8 and annular insulating support 10; Discharge electrode 1 and earthing pole 2 die opening are 5mm, and electric-field intensity is more than 350Td, and the material of discharge electrode 1, earthing pole 2 is stainless steel; Fluid is liquid, and fluid is pure fluid.
Embodiment 2
As shown in Figure 1, should for the preparation of the Venturi ionization device of hydroxyl radical free radical, this Venturi ionization device described comprises the ionization device body 16 be made up of ionization chamber 4 and venturi chamber 15, venturi chamber 15 is column type, fluid can be passed in venturi chamber 15, it is peripheral that ionization chamber 4 is positioned at venturi chamber 15, coaxial sleeve is connected to form with venturi chamber 15, ionization chamber 4 comprises discharge electrode 1, earthing pole 2, the dielectric 3 of next-door neighbour's discharge electrode 1 and gas passage, steam is passed into from ionization chamber 4, venturi chamber 15 comprises venturi wall 5, the sectional area width that venturi chamber 15 forms cavity according to venturi wall 5 is divided into straight length I 11, straight length II 14, contraction section I 12, contraction section II 13, contraction section I 12, contraction section II 13 is connected by throat 6, ionization chamber 4 is communicated with by negative tube 7 with throat 6.
Wherein gas passage one end is also provided with adjustable gas passway 9; Ionization chamber 4 outside is provided with annular insulation sleeve 8 and annular insulating support 10; Discharge electrode 1 and earthing pole 2 die opening are 5mm, and electric-field intensity is more than 350Td, and the material of discharge electrode 1, earthing pole 2 is aluminium alloy; Fluid is gas, and fluid is dusty gas.
Embodiment 3
As shown in Figure 2, should for the preparation of the Venturi ionization device of hydroxyl radical free radical, this Venturi ionization device described comprises the ionization device body 16 be made up of ionization chamber 4 and venturi chamber 15, venturi chamber 15 is column type, fluid can be passed in venturi chamber 15, it is peripheral that ionization chamber 4 is positioned at venturi chamber 15, coaxial sleeve is connected to form with venturi chamber 15, ionization chamber 4 comprises discharge electrode 1, earthing pole 2, the dielectric 3 of next-door neighbour's discharge electrode 1 and gas passage, steam is passed into from ionization chamber 4, venturi chamber 15 comprises venturi wall 5, the sectional area width that venturi chamber 15 forms cavity according to venturi wall 5 is divided into straight length I 11, straight length II 14, contraction section I 12, contraction section II 13, contraction section I 12, contraction section II 13 is connected by throat 6, ionization chamber 4 is communicated with by negative tube 7 with throat 6.
Wherein gas passage one end is also provided with adjustable gas passway 9; Ionization chamber 4 outside is provided with annular insulation sleeve 8 and annular insulating support 10; Discharge electrode 1 and earthing pole 2 die opening are 3mm, and electric-field intensity is more than 350Td, and the material of discharge electrode 1, earthing pole 2 is copper alloy; Fluid is gas, and this fluid is pure gas.
Embodiment 4
As shown in Figure 2, should for the preparation of the Venturi ionization device of hydroxyl radical free radical, this Venturi ionization device described comprises the ionization device body 16 be made up of ionization chamber 4 and venturi chamber 15, venturi chamber 15 is column type, fluid can be passed into from venturi chamber 15, it is peripheral that ionization chamber 4 is positioned at venturi chamber 15, coaxial sleeve is connected to form with venturi chamber 15, ionization chamber 4 comprises discharge electrode 1, earthing pole 2, the dielectric 3 of next-door neighbour's discharge electrode 1 and gas passage, steam is passed into from ionization chamber 4, venturi chamber 15 comprises venturi wall 5, the sectional area width that venturi chamber 15 forms cavity according to venturi wall 5 is divided into straight length I 11, straight length II 14, contraction section I 12, contraction section II 13, contraction section I 12, contraction section II 13 is connected by throat 6, ionization chamber 4 is communicated with by negative tube 7 with throat 6.
Wherein gas passage one end is also provided with adjustable gas passway 9; Ionization chamber 4 outside is provided with annular insulation sleeve 8 and annular insulating support 10; Discharge electrode 1 and earthing pole 2 die opening are 2mm, and electric-field intensity is more than 350Td, and the material of discharge electrode 1, earthing pole 2 is stainless steel; Fluid is gas, and this fluid is the gas polluted.
Claims (6)
1. the Venturi ionization device for the preparation of hydroxyl radical free radical, it is characterized in that: described Venturi ionization device comprises the ionization device body (16) be made up of ionization chamber (4) and venturi chamber (15), venturi chamber (15) is column type, venturi chamber can pass into fluid in (15), it is peripheral that ionization chamber (4) is positioned at venturi chamber (15), coaxial sleeve is connected to form with venturi chamber (15), ionization chamber (4) comprises discharge electrode (1), earthing pole (2), the dielectric (3) of next-door neighbour's discharge electrode (1) and gas passage, steam is passed into from ionization chamber (4), venturi chamber (15) comprises venturi wall (5), the sectional area width that venturi chamber (15) forms cavity according to venturi wall (5) is divided into straight length I, II (11, 14), contraction section I, II (12, 13), contraction section I, II (12, 13) connected by throat (6), ionization chamber (4) is communicated with by negative tube (7) with throat (6).
2. the Venturi ionization device for the preparation of hydroxyl radical free radical according to claim 1, is characterized in that: described gas passage one end is also provided with adjustable gas passway (9).
3. the Venturi ionization device for the preparation of hydroxyl radical free radical according to claim 1, is characterized in that: described ionization chamber (4) outside is provided with annular insulation sleeve (8) and annular insulating support (10).
4. the Venturi ionization device for the preparation of hydroxyl radical free radical according to claim 1, is characterized in that: described discharge electrode (1) and earthing pole (2) die opening are 0.05 ~ 5mm, and electric-field intensity is more than 350Td.
5. the Venturi ionization device for the preparation of hydroxyl radical free radical according to claim 1, is characterized in that: the material of described discharge electrode (1), earthing pole (2) is stainless steel or alloy.
6. the Venturi ionization device for the preparation of hydroxyl radical free radical according to claim 1, is characterized in that: described fluid is liquid or gas.
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| WO2017096112A1 (en) * | 2015-12-02 | 2017-06-08 | Bovie Medical Corporation | Mixing cold plasma beam jets with atmosphere |
| US10918433B2 (en) | 2016-09-27 | 2021-02-16 | Apyx Medical Corporation | Devices, systems and methods for enhancing physiological effectiveness of medical cold plasma discharges |
| WO2019046843A1 (en) * | 2017-09-01 | 2019-03-07 | Somnio Global Holdings, Llc | Free radical generator and methods of use |
| CN107673445B (en) * | 2017-09-29 | 2020-09-25 | 昆明理工大学 | Method for treating wastewater by venturi discharge plasma |
| CN108128854B (en) * | 2018-01-18 | 2023-07-18 | 昆明理工大学 | Method and device for recycling saline water based on corona discharge coupling electrodialysis |
| CN108483743B (en) * | 2018-05-25 | 2024-03-15 | 江苏大学 | Coating wastewater treatment system and method |
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| CN1556050A (en) * | 2003-12-31 | 2004-12-22 | 大连海事大学 | Method of producing hydroxy free radical from reaction of ozone and exutad water |
| CN201358216Y (en) * | 2009-02-23 | 2009-12-09 | 连云港三吉利化学工业有限公司 | Tubular reaction vessel used for preparing dihydroxybenzene through phenyl hydroxide hydroxylation reaction |
| KR20100064544A (en) * | 2008-12-05 | 2010-06-15 | 이영근 | An hydroxyl radical generation device |
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| US6562386B2 (en) * | 2001-05-07 | 2003-05-13 | Regents Of The University Of Minnesota | Method and apparatus for non-thermal pasteurization |
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|---|---|---|---|---|
| CN1556050A (en) * | 2003-12-31 | 2004-12-22 | 大连海事大学 | Method of producing hydroxy free radical from reaction of ozone and exutad water |
| KR20100064544A (en) * | 2008-12-05 | 2010-06-15 | 이영근 | An hydroxyl radical generation device |
| CN201358216Y (en) * | 2009-02-23 | 2009-12-09 | 连云港三吉利化学工业有限公司 | Tubular reaction vessel used for preparing dihydroxybenzene through phenyl hydroxide hydroxylation reaction |
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