CN107029882A - Large area corona plasma air purifier - Google Patents
Large area corona plasma air purifier Download PDFInfo
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- CN107029882A CN107029882A CN201710179542.3A CN201710179542A CN107029882A CN 107029882 A CN107029882 A CN 107029882A CN 201710179542 A CN201710179542 A CN 201710179542A CN 107029882 A CN107029882 A CN 107029882A
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- corona
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- electrode
- collecting electrode
- large area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
- B03C3/08—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
- B01D53/323—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/106—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/91—Bacteria; Microorganisms
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention belongs to technical field of environmental management, specially a kind of large area corona plasma air purifier.Including plate corona electrode, collecting electrode and light source, plate corona electrode with collecting electrode is spaced is arranged alternately, plate corona electrode surface is parallel with collecting electrode surface and just right；Light source is external light source, launches high-strength beam, projects plasma discharge and plasma tail stream by region.Air purifier of the present invention possesses large area corona electrode, thus, the corona discharging area of large volume can be produced, on the premise of plasma power is not reduced, reduce corona zone strength of discharge, low power density is unfavorable for the generation of ozone and nitrogen oxides, solve well plasma air purifying efficiency and ozone and nitrous oxides concentration it is exceeded between contradiction, and plate corona electrode can produce the corona discharging area of large volume, be conducive to improving the efficiency of plasma air purifying and industrial waste gas processing.
Description
Technical field
The invention belongs to technical field of environmental management, and in particular to a kind of large area corona plasma air purifier.
Background technology
A variety of functions such as plasma air purifying Integration ofTechnology sterilizing, dedusting, decomposing formaldehyde and TVOC, in numerous necks
Domain has a wide range of applications.However, when electric discharge produces plasma in atmosphere, accessory substance ozone and nitrogen oxides are difficult to
Avoid, making plasma technique, air purification field is seriously restricted indoors.If the mankind or animal are in for a long time
Ozone and the exceeded environment of nitrogen oxides, it would be possible to cause the uncomfortable reaction of body, also there are some researches show plant growth is dense in ozone
In the long-term exceeded environment of degree, the underproduction is also resulted in.In order to avoid ozone or nitrous oxides concentration are exceeded, can only reduce etc. from
The power density of daughter, this just sacrifices plasma sterilization, dedusting, decomposing formaldehyde and TVOC efficiency.Plasma air
Contradiction between purification efficiency and ozone and nitrous oxides concentration are exceeded seriously constrains plasma technique indoors
Air purification field, green organic agricultural field and the popularization and application for cultivating field.
In terms of industrial waste gas of plasma processing, plasma power is larger, although to ozone and nitrogen oxides index
It is insensitive, still, traditional asymmetry electrode structure electric discharge device, such as needle plate electrode structure, line plate or band plate structure, by force
Region of discharge is concentrated mainly at needle point, around line or at belt edge local very little space, be key reaction area, and more
Weak discharge region reactivity it is very weak, cause the Energy Efficiency Ratio of plasma industrial waste gas treatment low, this is also restriction plasma
The wide variety of key factor of body industrial waste gas treatment technology.
The content of the invention
It is an object of the invention to provide a kind of high large area corona plasma air purifier of purification efficiency.
The large area corona plasma air purifier that the present invention is provided, possesses large area corona electrode, therefore, it is possible to
The corona discharging area of large volume is produced, on the premise of plasma power is not reduced, corona zone strength of discharge, low work(is reduced
Rate density is unfavorable for the generation of ozone and nitrogen oxides, and plasma air purifying efficiency and ozone and nitrogen oxygen are solved well
Contradiction between compound concentration over-standard, and plate corona electrode can produce the corona discharging area of large volume, be conducive to improving
Plasma air purifying and the efficiency of industrial waste gas processing.
The large area corona plasma air purifier that the present invention is provided, including plate corona electrode, collecting electrode
Constituted with the part of light source three, its structure is as shown in Figure 1.Each several part constitutes as follows：
Plate corona electrode：By conductive fibre fabric, plate keel and groups of metal filaments into；Wherein, plate keel are flat bar
Shape, conductive fibre fabric is close to the side of plate keel, and wire is spirally wound on the flat board for posting conductive fibre fabric
In type keel flat bar, a plate corona electrode is constituted；Plate corona electrode and the high-voltage output end of high voltage power supply are connected；
Collecting electrode：To be plate, the low-voltage output of hydrophobic treatment, collecting electrode and high voltage power supply is passed through on collecting electrode surface
Connection；
Some plate corona electrodes with some pieces of collecting electrodes are spaced is arranged alternately, i.e. one flat plate type corona electrode
It is arranged in the middle of two pieces of collecting electrode plates, conversely, one piece of collecting electrode plate is arranged in the middle of two plate corona electrodes, it is plate
Corona electrode surface is parallel with collecting electrode surface and just right, and the function of plate corona electrode is transmitting electric charge and electric to dust
Pole applies high voltage electric field, and the conductive fibre fabric transmitting electric charge of corona electrode makes gray haze powered, and powered gray haze is acted in high voltage electric field
Lower to be accelerated to collecting electrode, the function of collecting electrode is to collect charged particle；
Light source：For external light source, quantity is some, is separately positioned on one end of corona electrode, and is arranged on plate corona electricity
The side of pole；External light source launches high-strength beam, projects the plasma between plate corona electrode and collecting electrode
Region of discharge, and air-flow leave the plasma wake flow region after region of discharge.
The described conductive fibre fabric for being close to plate keel side is non-woven felt, or non-woven fabrics, Huo Zherong
Face woven cloth, or wire netting.
The described conductive fibre fabric for being close to plate keel side is by carbon fiber-containing, either metallic fiber or oxygen
The material of compound fiber is made.
The described conductive fibre fabric for being close to plate keel side covers the 5%-100% on plate keel surface.
The described wire being spirally wound in the plate keel flat bar for posting conductive fibre fabric is to collecting electrode
Distance be less than conductive fibre fabric to collecting electrode distance.
The described wire being spirally wound in the plate keel flat bar for posting conductive fiber or metal mesh belt
By surface passivating treatment, to improve surface resistivity.
Hydrophobic treatment is passed through on described collecting electrode surface, including carries out micro-structural processing to collecting electrode surface, or
Plate hydrophobic coating.
Described external light source is semi-conductor solid-state light source, such as light emitting diode（LED）, laser diode（LD）, or
Person is gas discharge lamp tube, such as low pressure mercury lamp.
The photon energy of described external light source transmitting is in the range of 1.0-8.0eV.
Described external light source transmitting is pulsed light.
It is 4000V-30000V to apply voltage between plate corona electrode and collecting electrode, according to electrode spacing size
Apply relevant voltage, make to form highfield between plate corona electrode and collecting electrode, plate corona electrode launches positive electricity
Lotus or negative electrical charge, electric charge and photon act synergistically on the gas flowed through between electrode；Air-flow between electrode by when, gray haze
By powered after charge-trapping, powered gray haze is moved to collecting electrode in the electric field, is collected by collecting electrode；VOCs in air-flow and
Bacterium and active particle（Such as electronics, hydroxyl, oxygen atom, ozone, photon, excited atom and molecule）Reaction, becomes harmless
Small molecule；When gas is between plate corona electrode and collecting electrode out, although cleaned, but there is certain activity,
Wherein activity can absorb photon and be decomposed into particle, such as ozone and nitrogen oxides molecule, and the air-flow of last sanitary safe is from dress
Put and emit.
The large area corona plasma air purifier that the present invention is provided, big face is realized by large area corona electrode
Product corona discharge, obtaining large volume corona plasma reaction zone is used for gray haze removal and pernicious gas degraded, on the one hand, increase
Transition time of the air in plasma reaction area, you can to add charged time and the reaction of harmful substance of particulate matter
Time, charged efficiency and harmful substance degradation efficiency are improved, light plasma concerted reaction region is on the other hand also increased, i.e.,
Add photon and participate in the probability of plasma reaction because it is thus possible to improve light plasma cooperative air purification efficiency.Greatly
Area corona discharge also has lower corona intensity compared with the local corona discharge such as fine rule and point discharge, can reduce ozone and
Nitrogen oxides yield.
Brief description of the drawings
Fig. 1 is that light strengthens plasma air purifying device schematic diagram.
Fig. 2 is compound electrode schematic diagram.
Label in figure：1 is plate corona electrode, and 2 be collecting electrode, and 3 be light source, and 1-1 is keel, and 1-2 is conductive fine
Wei Bu, 1-3 are wire.
Embodiment
Embodiment 1
A kind of large area corona plasma air purifier, including plate corona electrode, collecting electrode and the part of light source three,
Each several part constitutes as follows：
Plate corona electrode：Keel, aluminium flat bar thickness 3mm, wide 40mm, long 470mm are used as using an aluminium flat bar；Using conduction
Carbon fiber felt is used as conductive fibre fabric, carbon fiber felt thickness 0.5mm, wide 86mm, long 450mm；Carbon fiber felt all wraps aluminium flat bar
Wrap, expose each 10mm in two ends, the aluminium wire with diameter 0.5mm is wrapping up the spiral coiling in aluminium flat bar outer surface of carbon fiber felt
Some rings, that is, constitute a plate corona electrode.
Collecting electrode：One aluminium flat bar is used as a collecting electrode, aluminium flat bar thickness 1mm, wide 60mm, long 500mm.50 collection
Dirt electrode and 49 plate corona electrode assembled parallels, constitute an air-purifying module.Set in the middle of each two collecting electrode
Putting has a collecting electrode in the middle of a plate corona electrode, the plate corona electrode of each two, plate corona electrode with
Collecting electrode is arranged alternately, and plate corona electrode group is connected with high voltage power supply high-voltage output end, collecting electrode group and high-tension electricity
Source low-voltage output connection.The distance between aluminum metal silk of collecting electrode and plate corona electrode is 10mm, plate electricity
The carbon fiber felt of dizzy electrode to the distance between collecting electrode be 10.5mm.
Light source：One end of each plate corona electrode sets the ultraviolet LD light sources that a power is 1W, and centre wavelength exists
405nm, semiconductor light source efficiency is high, and major function is that enhancing plasma is charged and degraded pernicious gas ability, also, wavelength
It is longer, yield of ozone will not be strengthened；In addition, in the side of plate corona electrode, i.e. plasma wake flow region, setting 3
15W low pressure mercury lamp fluorescent tube, fluorescent tube is vertical with plate corona electrode, the peak value of low pressure mercury lamp primary radiation spectrum in 253.7nm,
The wavelength is ozone and the strong absorption bands of nitrogen oxides, and major function is ozone decomposition and nitrogen oxides.
The large area corona plasma air purifier of the present embodiment device application, the simple tungsten filament corona with same power
Electrode discharge device is contrasted, and outlet ozone concentration have dropped 50%, and nitrous oxides concentration have dropped 35%, 30 cubes of standard testing rooms
Interior, 4 hours VOCs degradation rates are improved the time required to 38%, PM2.5 removes 95% 10 minutes, are shortened 5 minutes, are significantly improved sky
Gas purification efficiency, and reduce ozone and nitrous oxides concentration.
Claims (10)
1. a kind of large area corona plasma air purifier, it is characterised in that including plate corona electrode, collecting electrode
Constituted with the part of light source three, wherein：
Plate corona electrode：By conductive fibre fabric, plate keel and groups of metal filaments into；Wherein, plate keel are flat bar
Shape, conductive fibre fabric is close to the side of plate keel, and wire is spirally wound on the flat board for posting conductive fibre fabric
In type keel flat bar, a plate corona electrode, the high-voltage output end connection of plate corona electrode and high voltage power supply are constituted；
Collecting electrode：To be plate, the low-voltage output of hydrophobic treatment, collecting electrode and high voltage power supply is passed through on collecting electrode surface
Connection；
Some plate corona electrodes with some pieces of collecting electrodes are spaced is arranged alternately, i.e. one flat plate type corona electrode
It is arranged in the middle of two pieces of collecting electrode plates, conversely, one piece of collecting electrode plate is arranged in the middle of two plate corona electrodes, it is plate
Corona electrode surface is parallel with collecting electrode surface and just right, and plate corona electrode is used to launch electric charge and apply to collecting electrode
Increase piezoelectric field, the conductive fibre fabric transmitting electric charge of corona electrode makes gray haze powered, powered gray haze under high voltage electric field effect to
Collecting electrode is accelerated, and collecting electrode is used to collect charged particle；
Light source：For external light source, quantity is some, is separately positioned on one end of corona electrode, and is arranged on plate corona electricity
The side of pole；External light source launches high-strength beam, projects the plasma between plate corona electrode and collecting electrode
Region of discharge, and air-flow leave the plasma wake flow region after region of discharge.
2. large area corona plasma air purifier according to claim 1, it is characterised in that described is close to
The conductive fibre fabric of plate keel side is non-woven felt, either non-woven fabrics or matte woven cloth, or wire netting.
3. large area corona plasma air purifier according to claim 1, it is characterised in that described is close to
The conductive fibre fabric of plate keel side is made up of carbon fiber-containing, the either material of metallic fiber or oxide fibre.
4. large area corona plasma air purifier according to claim 1, it is characterised in that described is close to
The conductive fibre fabric of plate keel side covers the 5%-100% on plate keel surface.
5. large area corona plasma air purifier according to claim 1, it is characterised in that described is spiral
The distance of the wire that ground is wound in the plate keel flat bar for posting conductive fibre fabric to collecting electrode is less than conductive fibre fabric
To the distance of collecting electrode.
6. large area corona plasma air purifier according to claim 1, it is characterised in that described is spiral
The wire that ground is wound in the plate keel flat bar for posting conductive fiber or metal mesh belt passes through surface passivating treatment, to carry
High surface resistivity.
7. large area corona plasma air purifier according to claim 1, it is characterised in that described dust electricity
Hydrophobic treatment is passed through on pole surface, including micro-structural processing, or plating hydrophobic coating are carried out to collecting electrode surface.
8. large area corona plasma air purifier according to claim 1, it is characterised in that described exterior light
Source is semi-conductor solid-state light source, including light emitting diode, laser diode, or gas discharge lamp tube.
9. large area corona plasma air purifier according to claim 1, it is characterised in that described exterior light
The photon energy of source transmitting is in the range of 1.0-8.0eV.
10. large area corona plasma air purifier according to claim 1, it is characterised in that described outside
Light source transmitting is pulsed light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179542.3A CN107029882A (en) | 2017-03-23 | 2017-03-23 | Large area corona plasma air purifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179542.3A CN107029882A (en) | 2017-03-23 | 2017-03-23 | Large area corona plasma air purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107029882A true CN107029882A (en) | 2017-08-11 |
Family
ID=59534620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710179542.3A Pending CN107029882A (en) | 2017-03-23 | 2017-03-23 | Large area corona plasma air purifier |
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| CN (1) | CN107029882A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107684977A (en) * | 2017-08-30 | 2018-02-13 | 珠海格力电器股份有限公司 | Electric purification structure and air purification device comprising same |
| CN109926208A (en) * | 2019-04-15 | 2019-06-25 | 袁野 | A kind of conductive fiber cathode corona wire |
| WO2020083252A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | Air dust removal system and method |
| WO2020083123A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | Engine exhaust dust removal system and method |
| CN111358996A (en) * | 2020-03-12 | 2020-07-03 | 华中科技大学 | Method and equipment for effectively inactivating viruses |
| CN111578336A (en) * | 2020-05-26 | 2020-08-25 | 佛山优维士光电科技有限公司 | Oil smoke purifies ultraviolet ray module |
| CN111657822A (en) * | 2020-06-24 | 2020-09-15 | 海信(广东)厨卫系统有限公司 | Dish washing machine and control method thereof |
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| CN103566722A (en) * | 2013-10-11 | 2014-02-12 | 北京睿昱达科技有限公司 | Method and device for integrally desulfurizing, denitrating and dust-removing by plasma |
| CN105478238A (en) * | 2014-09-16 | 2016-04-13 | 孙红梅 | Wire-mesh-electrode discharging device |
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2017
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| JPS56108514A (en) * | 1980-01-30 | 1981-08-28 | Fujitsu Ltd | Waste gas treatment |
| CN2098329U (en) * | 1991-08-23 | 1992-03-11 | 张店钢铁厂 | Electrical cyclone duster with novel flow field |
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| CN205288693U (en) * | 2016-01-08 | 2016-06-08 | 田鹏程 | Adjustable corona discharge electrode and take electrostatic precipitator defroster of adjustable corona discharge electrode |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107684977A (en) * | 2017-08-30 | 2018-02-13 | 珠海格力电器股份有限公司 | Electric purification structure and air purification device comprising same |
| WO2020083252A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | Air dust removal system and method |
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| WO2020083132A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | System and method for removing dust from intake airflow of engine |
| WO2020083123A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | Engine exhaust dust removal system and method |
| CN109926208A (en) * | 2019-04-15 | 2019-06-25 | 袁野 | A kind of conductive fiber cathode corona wire |
| CN111358996A (en) * | 2020-03-12 | 2020-07-03 | 华中科技大学 | Method and equipment for effectively inactivating viruses |
| CN111578336A (en) * | 2020-05-26 | 2020-08-25 | 佛山优维士光电科技有限公司 | Oil smoke purifies ultraviolet ray module |
| CN111657822A (en) * | 2020-06-24 | 2020-09-15 | 海信(广东)厨卫系统有限公司 | Dish washing machine and control method thereof |
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Application publication date: 20170811 |