CN104787854A - Improved gas-liquid two-phase discharging plasma polluted water treatment device - Google Patents
Improved gas-liquid two-phase discharging plasma polluted water treatment device Download PDFInfo
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- CN104787854A CN104787854A CN201510170884.XA CN201510170884A CN104787854A CN 104787854 A CN104787854 A CN 104787854A CN 201510170884 A CN201510170884 A CN 201510170884A CN 104787854 A CN104787854 A CN 104787854A
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- electrode
- reaction vessel
- hollow needle
- quartz glass
- glass tube
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 title claims abstract description 16
- 238000007599 discharging Methods 0.000 title abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000005273 aeration Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 13
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 9
- 238000013022 venting Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 208000028659 discharge Diseases 0.000 description 36
- 238000005516 engineering process Methods 0.000 description 7
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000005281 excited state Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Abstract
The invention discloses an improved gas-liquid two-phase discharging plasma polluted water treatment device which includes a reaction vessel, a discharging electrode and a grounding electrode, wherein a condenser pipe is detachably mounted inside the reaction vessel; the discharging electrode includes a hollow needle-like metal electrode capable of aeration and connected with the anode of a power source, and a quartz glass tube sleeving the hollow needle-like metal electrode; the gap between the lower end of the quartz glass tube and the hollow needle-like metal electrode is sealed; a gas outlet end of the hollow needle-like metal electrode and the opened end of the quartz glass tube are arranged at the bottom inside the reaction vessel; the grounding electrode is connected to the cathode of the power source, is grounded and arranged inside the reaction vessel corresponding to the discharging electrode. The improved gas-liquid two-phase discharging plasma polluted water treatment device solves the problems that the plasma electrode is instable in discharge, the electrode is easy to burn and damage, the debugging is difficult and the like, and has the advantages of excellent treatment effect and high stability, and the like, compared with similar devices.
Description
Technical field
The invention belongs to polluted water purification technical field, be specifically related to a kind of modified form gas-liquid two-phase plasma discharge treatment polluted-water device.
Background technology
Along with Progress in industrialization, the water environment pollution that various industrial production is brought is more and more serious, and the complicacy of industrial production wastewater makes traditional wastewater treatment facility cannot meet day by day complicated water conditioning requirement, brings very large challenge to sewage disposal technology.
Lower temperature plasma technology is a kind of emerging high-level oxidation technology, it is a cross-synthesis technology integrating physics, chemistry, biology and environmental science, this technology distinguishing feature has physical influence, chemical effect and biological effect concurrently to pollutent, and have the obvious advantages such as energy consumption is low, efficiency is high, non-secondary pollution.It is in the process producing plasma body, and the moment high energy that high frequency discharge produces enough opens the chemical energy of some organic pollutant molecules, makes it to be decomposed into simple substance atom or harmless molecule; Comprise a large amount of high-energy electrons, negative ions, excited state particle in plasma body and have the free radical of strong oxidizing property, these active particles and part foul smell molecular impact combine, and under electric field action, make foul smell molecule be in excited state.When foul smell molecule obtain energy be greater than its molecular bond energy in conjunction with energy time, the chemical bond rupture of foul smell molecule, Direct Resolution becomes simple substance atom or the molecule by single atomic building.A large amount of OH, HO of producing simultaneously
2, O isoreactivity free radical and the extremely strong O of oxidisability
3, with organic pollutants molecule generation chemical reaction, finally generate harmless products.But it is high to there is energy consumption cost in current plasma technique, the deficiency of device instability.
Summary of the invention
The object of the invention is to the technical problem proposed for background technology, a kind of modified form gas-liquid two-phase discharge plasma process polluted-water device is provided.The advantages such as it is good that this device has treatment effect compared with same device, and device is stable.
Object of the present invention can be achieved through the following technical solutions:
A kind of modified form gas-liquid two-phase discharge plasma process polluted-water device, it comprises reaction vessel, discharge electrode and ground-electrode, detachably prolong is installed in described reaction vessel, described discharge electrode comprise connect positive source can aeration hollow needle-like metal electrode and be set in quartz glass tube outside hollow needle-like metal electrode, space between described quartz glass tube lower end and hollow needle-like metal electrode is closed, the described gas outlet end of hollow needle-like metal electrode and the opening end of quartz glass tube are arranged on the bottom in reaction vessel, described ground-electrode connects power cathode and ground connection and discharge electrode described in correspondence are arranged in reaction vessel.Discharge electrode of the present invention is modified form plasma discharge electrode, during use, air enters in quartz glass tube by the gas outlet end of hollow needle-like metal electrode, fully mix with polluted-water at silica glass inner air tube, high-voltage power supply forms discharge channel in Glass tubing, realize gas-liquid mixed plasma discharge, electrode discharge is stablized, and can significantly improve the treatment effect of polluted-water.
The quantity of described discharge electrode is one or more.
The described hollow metal needle electrode the other end corresponding with gas outlet end is inlet mouth, and described inlet mouth is communicated with pneumatic pump by ventpipe.
As a kind of preferred version, the shape of described reaction vessel is tubular.
As a kind of preferred version, described prolong is serpentine condenser.
Further preferably, the shape of described reaction vessel is tubular, and described prolong is serpentine condenser, and the external diameter of this serpentine condenser is less than the internal diameter of described reaction vessel.
Described reaction vessel is also provided with venting port.
As a kind of preferred version, the opening end of described quartz glass tube exceeds the gas outlet end 1 ~ 3mm of hollow needle-like metal electrode.
Be arranged on the detachable spiral coil cooling tube in tubular reaction vessel, profile is cylindric, its external diameter is slightly less than the internal diameter of tubular reaction vessel, serpentine condenser conveniently takes out cleaning, during reaction, inject water of condensation to ensure that temperature of reaction system is stablized by the water of condensation import of prolong, reduce water yield evaporation.Air outlet on reaction vessel is located on the sidewall of more than the reaction vessel water surface, for discharging gas.Reaction container bottom installs discharge electrode, this electrode discharge mode is gas-liquid two-phase electric discharge, primarily of can aeration hollow needle-like metal electrode and be set in quartz glass tube on hollow needle-like metal electrode and form, space between described quartz glass tube lower end and hollow needle-like metal electrode is closed, but the lower end of hollow needle-like metal electrode reserves inlet mouth and connects position of source, the opening end of described quartz glass tube exceeds the pneumatic outlet 1 ~ 3mm of hollow needle-like metal electrode, discharge electrode and ground-electrode are connected with negative pole with the positive pole of the high-voltage power supply being arranged on reaction vessel outside respectively.
This device adopts modified form discharge electrode to carry out the advantage of gas-liquid two-phase Cement Composite Treated by Plasma polluted-water:
This device is practical, device structure is simple, and working cost is low, easy to operate, applied widely, solve plasma electrode discharge instability, the problems such as electrode easily burns damage, debug difficulties, the prolong simultaneously arranged in it can effectively raise by inhibited reaction system temperature, reduce water loss, make this device have economic environmental protection and stable advantage, the purifying treatment field of organic pollution aquifer can be widely used in.There is treatment effect compared with same device good, the advantages such as device is stable.
Accompanying drawing explanation
Fig. 1 is modified form plasma discharge electrode structural chart.
Fig. 2 is the structure iron of modified form gas-liquid two-phase discharge plasma process polluted-water device.
Wherein, 1-inlet mouth, 2-reaction vessel, 3-hollow needle-like metal electrode, 4-quartz glass tube, 5-gas outlet end, 6-positive source, 7-power cathode, the import of 8-water of condensation, 9-condensation-water drain, 10-ground-electrode, 11-venting port, 12-prolong, 13-ventpipe
Embodiment
Modified form gas-liquid two-phase discharge plasma process polluted-water device embodiments of the present invention is as follows:
As illustrated in fig. 1 and 2, a kind of modified form gas-liquid two-phase discharge plasma process polluted-water device, it comprises reaction vessel 2, discharge electrode and ground-electrode 10, in described reaction vessel 2, prolong 12 is detachably installed, described discharge electrode is modified form plasma discharge electrode, comprising can aeration hollow needle-like metal electrode 3 and the quartz glass tube 4 that is set in outside hollow needle-like metal electrode 3, space between described quartz glass tube 4 lower end and hollow needle-like metal electrode 3 is closed, the lower end of described hollow needle-like metal electrode 3 connects positive source 6 and is provided with inlet mouth 1 and in hollow needle-like metal electrode 3, passes into air by pneumatic pump, air enters in quartz glass tube 4 by gas outlet end 5, in quartz glass tube 4, air fully mixes with polluted-water, high-voltage power cathode 6 connects the lower end of hollow needle-like metal electrode 3, discharge channel is formed in quartz glass tube 4, realize gas-liquid mixed plasma discharge.The opening end of described quartz glass tube 4 exceeds the gas outlet end 51 ~ 3mm of hollow needle-like metal electrode 3.The described gas outlet end 5 of hollow needle-like metal electrode 3 and the opening end of quartz glass tube 4 are arranged on the bottom in reaction vessel 2 by rubber plug, described ground-electrode 10 connects power cathode 7 ground connection and discharge electrode described in correspondence is arranged in reaction vessel 2.
The quantity of described discharge electrode is one, also can be multiple.
Described hollow metal needle electrode 3 the other end corresponding with gas outlet end 5 is inlet mouth 1, and described inlet mouth 1 is communicated with pneumatic pump by ventpipe 13, and for passing into air in hollow needle-like metal electrode 3, the flow of air is controlled by air flowmeter.
The shape of described reaction vessel 2 is tubular, and described prolong 12 is serpentine condenser, and the external diameter of this serpentine condenser is less than the internal diameter of described reaction vessel 2.
Described reaction vessel 2 is also provided with venting port 11, and this venting port 11 is located on the sidewall of more than reaction vessel 2 water surface.
The voltage of described power supply, electric current, frequency-adjustable saves.
Described prolong 12 water coolant by valve according to real reaction power regulation uninterrupted.
Adopt the process of device process polluted-water of the present invention as follows: pretreated polluted-water injects reaction vessel 2, water coolant is injected by the water of condensation import 8 of prolong, flowed out by condensation-water drain 9 and circulate, prolong 12 can prevent water body excessive temperature in exoelectrical reaction in reaction vessel 2 from raising, reduce Water Evaporation, make treatment system steady running.Air is passed in reaction system through air flowmeter after regulating air flow quantity size by air flowmeter by pneumatic pump, mix with polluted-water in quartz glass tube 4, hollow needle-like metal electrode 3 and ground-electrode 10 access high-voltage power supply positive and negative electrode respectively, after regulating power source voltage and electric current appropriate value, because in quartz glass tube 4, air has certain pressure, stable discharge channel can be formed in quartz glass tube 4 cavity, produce the reaction of significant plasma discharge, then the respond venting port 11 of container 2 of surplus air is discharged.
In high-voltage power supply discharge process, the air passed into can be ionized in a large number, and forms a large amount of high-energy electron and OH, e
eq -, O, HO
2deng the O that free-radical oxidn is extremely strong
3and H
2o
2, because these materials have strong oxidisability and activity, advanced treatment can be carried out to water quality; In addition, also with effects such as localized hyperthermia's high pressure, strong shock wave, ultraviolets, thus pollutent in water body can effectively be removed in this reaction process.Adopt the DMP solution of the 100mg/L of this device process 120ml, air flow is 2L/h, output rating 50W, and the clearance of reaction times 30min, DMP can reach 81.3%.
This device adopts modified form discharge electrode to carry out the advantage of gas-liquid two-phase Cement Composite Treated by Plasma polluted-water: this device is practical, equipment is simple, working cost is low, easy to operate, applied widely, solve plasma electrode discharge instability, electrode easily burns damage, the problems such as debug difficulties, its built-in prolong can effectively raise by inhibited reaction system temperature simultaneously, reduce water loss, make this device have economic environmental protection and stable advantage, the purifying treatment field of organic pollution aquifer can be widely used in.
Claims (8)
1. a modified form gas-liquid two-phase discharge plasma process polluted-water device, it comprises reaction vessel, discharge electrode and ground-electrode, it is characterized in that detachably prolong being installed in described reaction vessel, described discharge electrode comprise connect positive source can aeration hollow needle-like metal electrode and be set in quartz glass tube outside hollow needle-like metal electrode, space between described quartz glass tube lower end and hollow needle-like metal electrode is closed, the described gas outlet end of hollow needle-like metal electrode and the opening end of quartz glass tube are arranged on the bottom in reaction vessel, described ground-electrode connects power cathode and ground connection and discharge electrode described in correspondence are arranged in reaction vessel.
2. device according to claim 1, is characterized in that the quantity of described discharge electrode is one or more.
3. device according to claim 1, it is characterized in that the described hollow metal needle electrode the other end corresponding with gas outlet end is inlet mouth, described inlet mouth is communicated with pneumatic pump by ventpipe.
4. device according to claim 1, is characterized in that the shape of described reaction vessel is tubular.
5. device according to claim 1, is characterized in that described prolong is serpentine condenser.
6. the device according to claim 1,4 or 5, it is characterized in that the shape of described reaction vessel is tubular, described prolong is serpentine condenser, and the external diameter of this serpentine condenser is less than the internal diameter of described reaction vessel.
7. the device according to claim 1 or 4, is characterized in that described reaction vessel is also provided with venting port.
8. device according to claim 1, is characterized in that the opening end of described quartz glass tube exceeds the gas outlet end 1 ~ 3mm of hollow needle-like metal electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510170884.XA CN104787854B (en) | 2015-04-10 | 2015-04-10 | A kind of modified form gas-liquid two-phase discharge plasma processes polluted-water device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510170884.XA CN104787854B (en) | 2015-04-10 | 2015-04-10 | A kind of modified form gas-liquid two-phase discharge plasma processes polluted-water device |
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| CN104787854A true CN104787854A (en) | 2015-07-22 |
| CN104787854B CN104787854B (en) | 2017-07-07 |
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| CN201510170884.XA Expired - Fee Related CN104787854B (en) | 2015-04-10 | 2015-04-10 | A kind of modified form gas-liquid two-phase discharge plasma processes polluted-water device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883979A (en) * | 2016-06-03 | 2016-08-24 | 成都科衡环保技术有限公司 | Gas-liquid mixed type low-temperature plasma generator and integrated device |
| CN107694758A (en) * | 2017-11-10 | 2018-02-16 | 中国石油大学(华东) | A kind of low temperature electric cleaner electric discharge condenser pipe |
| CN112915231A (en) * | 2021-01-26 | 2021-06-08 | 桂林电子科技大学 | Plasma jet sterilization device, equipment and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050002A (en) * | 2007-04-04 | 2007-10-10 | 黄会峰 | Method for treating industrial wastewater by low temperature using plasma and treating equipment |
| CN102897892A (en) * | 2012-10-26 | 2013-01-30 | 清华大学 | Enhanced-type capillary-needle discharging plasma water treatment device |
| CN103482727A (en) * | 2013-09-09 | 2014-01-01 | 河海大学常州校区 | Air plasma jet water treatment experiment research device |
-
2015
- 2015-04-10 CN CN201510170884.XA patent/CN104787854B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050002A (en) * | 2007-04-04 | 2007-10-10 | 黄会峰 | Method for treating industrial wastewater by low temperature using plasma and treating equipment |
| CN102897892A (en) * | 2012-10-26 | 2013-01-30 | 清华大学 | Enhanced-type capillary-needle discharging plasma water treatment device |
| CN103482727A (en) * | 2013-09-09 | 2014-01-01 | 河海大学常州校区 | Air plasma jet water treatment experiment research device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883979A (en) * | 2016-06-03 | 2016-08-24 | 成都科衡环保技术有限公司 | Gas-liquid mixed type low-temperature plasma generator and integrated device |
| CN105883979B (en) * | 2016-06-03 | 2018-08-10 | 成都科衡环保技术有限公司 | A kind of gas-liquid mixed low-temperature plasma generator and integrating device |
| CN107694758A (en) * | 2017-11-10 | 2018-02-16 | 中国石油大学(华东) | A kind of low temperature electric cleaner electric discharge condenser pipe |
| CN112915231A (en) * | 2021-01-26 | 2021-06-08 | 桂林电子科技大学 | Plasma jet sterilization device, equipment and application thereof |
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| CN104787854B (en) | 2017-07-07 |
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Granted publication date: 20170707 |