CN106179749B - Discharge electrode and preparation method thereof, plasma generator and air cleaning facility - Google Patents
Discharge electrode and preparation method thereof, plasma generator and air cleaning facility Download PDFInfo
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- CN106179749B CN106179749B CN201610524462.2A CN201610524462A CN106179749B CN 106179749 B CN106179749 B CN 106179749B CN 201610524462 A CN201610524462 A CN 201610524462A CN 106179749 B CN106179749 B CN 106179749B
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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
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/10—Homopolymers or copolymers of propene
- C09D123/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The present invention provides a kind of discharge electrode and preparation method thereof, plasma generator and air cleaning facility, discharge electrode includes: metal mesh, is coated with dielectric barrier on the surface of metal mesh；Wherein, the surface of dielectric barrier has multiple point discharge points.Discharge electrode in the present invention solves the problems, such as plasma for purification equipment in the prior art because electrion is easy to produce explosion and electromagnetic interference etc..
Description
Technical field
The present invention relates to technical field of plasma, in particular to a kind of discharge electrode and preparation method thereof, etc. from
Daughter generator and air cleaning facility.
Background technique
During discharge of plasma in low temperature, although electron temperature is very high, the heavy particle temperature electrically opposite with electronics
Degree is very low, so that low-temperature condition is presented in whole system, so referred to as low temperature plasma, is also non-equilibrium plasma.
Low temperature plasma be based on the cross discipline on the subjects such as discharge physics, discharge chemistry, reaction process,
In low-temperature plasma system, when the temperature of electronics is up to 1000-2500K, the temperature of other particles only has 300-500K, entirely
System is still within low-temperature condition.
In recent decades, the research in relation to plasma technique is very active, dirty for synthesis novel substance, new material and environment
Dye the fields such as administers and provides a kind of new technology, new method and new process.The transmittance process of energy is substantially in low temperature plasma
Are as follows: electronics obtains energy from electric field, converts energy to by colliding the interior energy and kinetic energy of molecule, obtains the molecule quilt of energy
Excitation, at the same time, moieties are ionized, these particles activated mutually collide physico so as to cause a series of complex
Learn reaction.Because being rich in a large amount of active particles such as ion, electronics, the atom of excitation state and molecule and free radical in plasma system
Deng to provide technical support for plasma for purification air.
The mechanism of action of plasma for purification air includes two aspects: first is that during generating plasma, it is high
Moment high energy caused by frequency electric discharge opens the chemical energy of some pernicious gas molecules enough, is allowed to be decomposed into simple substance atom or nothing
Evil molecule；Second is that in plasma comprising a large amount of high energy electron, negative ions, excited state particle and with strong oxidizing property from
By base, these active particles and part foul smell molecular collision are combined, and under electric field action, nuisance molecule are made to be in excitation state.
When the energy that nuisance molecule obtains is greater than the combination energy of its molecular bond energy, the chemical bond rupture of nuisance molecule directly divides
Solution obtains innocuous gas molecule at simple substance atom or by single atomic building.A large amount of OH, the HO generated simultaneously2, O etc. it is living
Free love base and the extremely strong O of oxidisability3, chemically reacted with pernicious gas molecule, ultimately generate harmless products, still, mistake
The ozone of amount generates high risks to human body.
The method for generating low temperature plasma has: glow discharge, corona discharge, dielectric barrier discharge, radio frequency discharge, sliding
Arc discharge, jet stream electric discharge, Atomospheric pressure glow discharge, sub-atmospheric pressure glow discharge etc., either any production method are all
Pass through the principle of electrion.
Currently, the commercialization low temperature plasma equipment of commercially available maturation is mainly corona discharge or dielectric barrier discharge, and
And the required voltage generated for the low temperature plasma of air purification field is usually above 12kV.Dielectric barrier discharge generates
Energy of plasma it is high, but argon-arc plasma field uniformity and stability are poor, and corona discharge uniformity and stability all compared with
Height, but it is possible to measure lower and lead to not high-efficient purification air.
In addition, no matter high pressure needed for corona discharge or dielectric barrier discharge is to low-temperature plasma equipment itself or to work
Making environment all is the safety problem that must be taken into consideration, because electrion is easy to produce explosion issues and electromagnetic interference etc. and asks
Topic.
Summary of the invention
The main purpose of the present invention is to provide a kind of discharge electrode and preparation method thereof, plasma generator and air
Cleaning equipment, to solve plasma for purification equipment in the prior art because electrion is easy to produce explosion and electromagnetic interference etc.
The problem of.
To achieve the goals above, according to the first aspect of the invention, a kind of discharge electrode is provided, comprising: metal
Net is coated with dielectric barrier on the surface of metal mesh；Wherein, the surface of dielectric barrier has multiple point discharge points.
Further, metal mesh is copper mesh.
Further, dielectric barrier is polymer coating.
Further, metal mesh is formed by knit-mesh, and the diameter of twine is 0.1~1mm.
Further, dielectric barrier is wrapped on twine.
Further, the mesh of metal mesh is rectangular mesh, and the side length of rectangular mesh is 0.5~20mm.
Further, dielectric barrier with a thickness of 0.05~2mm.
According to the second aspect of the invention, a kind of plasma generator is provided, including above-mentioned discharge electrode.
Further, plasma generator includes two discharge electrodes, and one of discharge electrode is above-mentioned electric discharge electricity
Pole, another discharge electrode are metal mesh.
According to the third aspect of the present invention, a kind of air cleaning facility, including plasma generator, plasma are provided
Generator is above-mentioned plasma generator.
According to the fourth aspect of the present invention, a kind of preparation method of discharge electrode is provided, preparation method is for manufacturing
Above-mentioned discharge electrode, comprising: step 1: a metal mesh is obtained；Step 2: processing coating mix, and coating is mixed
Object is coated on metal mesh at a predetermined temperature to form the dielectric barrier that surface has multiple point discharge points.
Further, the step of processing coating mix includes: poly- third by the polypropylene of predetermined purity and predetermined purity
Olefin(e) acid is mixed to form initial mixture by predetermined ratio；Added into initial mixture predetermined purity benzoyl peroxide and
The polyvinyl alcohol of predetermined purity is to form coating mix.
Further, polyacrylic purity is 95.0%~99.9%.
Further, the purity of polyacrylic acid is 95.0%~99.9%.
Further, predetermined temperature is 160~180 degree.
Discharge electrode in the present invention includes metal mesh and Jie with multiple point discharge points for being arranged on metal mesh
Matter barrier layer, in this way, the dielectric barrier can induce the substance in air, such as oxygen or hydrone to take the lead in discharging, i.e., it is sharp
Numerous microcosmic corona discharges may be implemented in end point of discharge, and the energy density of corona discharge can be improved, and guarantee dielectric barrier discharge
Uniformity and stability.As it can be seen that can be stablized under the operating condition of opposite bottom voltage using the discharge electrode in the present invention
Ground generates the low temperature plasma of high-energy, solves plasma for purification equipment in the prior art because electrion is easy to produce
The problem of raw explosion and electromagnetic interference etc..
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the flow chart of the embodiment of the preparation method of discharge electrode according to the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The present invention provides a kind of discharge electrodes, referring to FIG. 1, the discharge electrode includes: metal mesh, the surface of metal mesh
It is upper to be coated with dielectric barrier；Wherein, the surface of dielectric barrier has multiple point discharge points.
Discharge electrode in the present invention includes metal mesh and Jie with multiple point discharge points for being arranged on metal mesh
Matter barrier layer, in this way, the dielectric barrier can induce the substance in air, such as oxygen or hydrone to take the lead in discharging, i.e., it is sharp
Numerous microcosmic corona discharges may be implemented in end point of discharge, and the energy density of corona discharge can be improved, and guarantee dielectric barrier discharge
Uniformity and stability.As it can be seen that can be stablized under the operating condition of opposite bottom voltage using the discharge electrode in the present invention
Ground generates the low temperature plasma of high-energy, solves plasma for purification equipment in the prior art because electrion is easy to produce
The problem of raw explosion and electromagnetic interference etc..
In the present embodiment, metal mesh is copper mesh.
In the present embodiment, dielectric barrier is polymer coating.Preferably, polymer coating is by polyacrylic acid and poly- second
Enol is constituted.
The groups such as hydroxyl, carboxyl, carbonyl due to the polymer surfaces of coating induce the substance such as oxygen in air, water
Molecule etc. takes the lead in discharging, these groups come from polyacrylic acid and polyvinyl alcohol, the oxygen gas and water in these functional groups and air
During molecule isopolarity group contacts under electric field action, the electric discharge that takes the lead in forms plasma, this leads to required discharge voltage
It drastically reduces.This coating surface in terms of microcosmic angle has numerous microcosmic point discharge points, is equivalent to numerous microcosmic corona discharges,
This not only increases the energy density of corona discharge, also guarantees the uniformity and stability of dielectric barrier discharge.
In the present embodiment, metal mesh is formed by knit-mesh, and the diameter of twine is 0.1~1mm.Specifically, twine
Diameter is 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.7mm, 0.9mm, 1.0mm.
In the present embodiment, dielectric barrier is wrapped on twine.In this way, can make at each surface of metal mesh all
It is coated with dielectric barrier.
In the present embodiment, the mesh of metal mesh is rectangular mesh, and the side length of rectangular mesh is 0.5~20mm.According to reality
Border situation can set other shapes for the mesh of metal mesh.
In the present embodiment, dielectric barrier with a thickness of 0.05~2mm.
The present invention also provides a kind of plasma generators, including above-mentioned discharge electrode.
Plasma generator in the present invention is to go out a kind of novel composite electrode material by chemical synthesis, this compound
Electrode material can steadily generate the low temperature plasma of high-energy under the operating condition of relative low voltage.
In the present embodiment, plasma generator includes two discharge electrodes, and one of discharge electrode is above-mentioned puts
Electrode, another discharge electrode are metal mesh.
Near the point electrode of radius of curvature very little, since local electric field strength is more than the ionization field strength of gas, make gas
Ionization and excitation occur for body, thus corona discharge occur.Gassy between two electrodes, and wherein one or two is electric
Pole is covered with dielectric, and medium can also be hung directly to discharge space or use granular media filler wherein, when
When applying sufficiently high alternating voltage between two electrodes, interelectrode gas can be breakdown and generation is discharged, that is, produces medium resistance
Gear electric discharge.
The present invention provides a kind of air cleaning facility, including plasma generator again, and plasma generator is above-mentioned
Plasma generator.
In order to produce above-mentioned discharge electrode, invention further provides a kind of preparation method of discharge electrode, preparation methods
For manufacturing above-mentioned discharge electrode, comprising: step 1: obtaining a metal mesh；Step 2: processing coating mix, and will
Coating mix is coated on metal mesh at a predetermined temperature to form the dielectric barrier that surface has multiple point discharge points.
In the present embodiment, the step of processing coating mix includes: by the polypropylene of predetermined purity and predetermined purity
Polyacrylic acid is mixed to form initial mixture by predetermined ratio；The benzoyl peroxide first of predetermined purity is added into initial mixture
Acyl and the polyvinyl alcohol of predetermined purity are to form coating mix.
Specifically, the first step of the invention be by 95.0~99.9% polypropylene of purity (1000 parts) and purity 95.0~
By a certain percentage then uniformly mixing adds a certain amount of analytically pure benzoyl peroxide first to 99.9% polyacrylic acid (10~50 parts)
Acyl (0.1~1 part) and 95.0~99.0% polyvinyl alcohol of purity (1~10 part).
Second step is that Extrusion Coating is on copper mesh surface at 160~180 DEG C by first step mixture, so that copper net electrode
All copper mesh lines are all coated in the mixture completely, in this way formation medium blocking discharge electrode.
Third step is as discharge electrode, then the material that will be prepared is mounted in plasma purification device equipment
Crest voltage when stable testing plasma generates, and using GB/T18801-2015 " air purifier " and
GB21551.3 " antibacterial of household and similar applications electric appliance, degerming, purification function air purifier particular/special requirement " measurement application
The filter efficiency and sterilizing bactericidal property of the clarifier of NEW TYPE OF COMPOSITE plasma electrode, ozone leakage detection is using in room air
Ozone sanitary standard " GB/T 18202-2000 ".
In addition, dramatically increasing argon-arc plasma field intensity by improving crest voltage, purification efficiency is consequently increased, at this
It is the ability that air is purified under the open minimum voltage that can generate argon-arc plasma field and minimum operating condition in invention.
In the present embodiment, polyacrylic purity is 95.0%~99.9%.
In the present embodiment, the purity of polyacrylic acid is 95.0%~99.9%.
In the present embodiment, predetermined temperature is 160~180 degree.
The advantages of corona discharge and the aspect of dielectric barrier discharge two are combined in the present invention is designed a kind of completely new compound
Discharge electrode, that is, stable discharging under low-voltage can be achieved and generate stable and uniform plasma.
Main embodiment is: two electrodes being all made into single layer copper mesh, the painting of one of electrode is then covered with thickness
Uniform polymer is spent as dielectric barrier, from macroscopically seeing that this is dielectric barrier discharge, actually due to the polymerization of coating
The groups such as hydroxyl, carboxyl, the carbonyl on object surface induce the substance such as oxygen in air, and hydrone etc. takes the lead in discharging, this is from micro-
It sees angle and sees that coating surface has numerous microcosmic point discharge points, be equivalent to numerous microcosmic corona discharges, this not only increases electricity
The energy density of corona also guarantees the uniformity and stability of dielectric barrier discharge.
Discharge electrode in the present invention is with copper mesh for basic electrode material, coats one layer of polymeric on copper net electrode surface
Then coating is used as combination electrode.0.1~1mm of diameter of copper electrode twine in the present invention, grid 0.5~20mm of spacing are applied
Thickness 0.05~0.2mm of degree, all substances are mass fraction.
Lower mask body introduces the specific embodiment of this programme:
Embodiment one:
The diameter 0.1mm of copper electrode twine, grid spacing (side length of rectangular mesh) 2mm, coating layer thickness 0.05mm own
Substance is mass fraction.
The first step of the invention is by 99.9% polypropylene of purity (1000 parts) and 99.9% polyacrylic acid of purity (50 parts)
Then uniformly mixing by a certain percentage adds a certain amount of analytically pure benzoyl peroxide (0.1 part) and the poly- second of purity 99.0%
Enol (10 parts).
Second step is that Extrusion Coating is on copper mesh surface at 180 DEG C by first step mixture, so that copper net electrode is all
Copper mesh line is all coated in the mixture completely, in this way formation medium blocking discharge electrode.
Third step is as discharge electrode, then the material that will be prepared is mounted in plasma purification device equipment
Crest voltage when stable testing plasma generates, and using GB/T18801-2015 " air purifier " and
GB21551.3 " antibacterial of household and similar applications electric appliance, degerming, purification function air purifier particular/special requirement " measurement application
The filter efficiency and sterilizing bactericidal property of the clarifier of NEW TYPE OF COMPOSITE plasma electrode, ozone leakage detection is using in room air
Ozone sanitary standard " GB/T 18202-2000 ".
Test result shows: discharge loop electric current is stablized without generating fluctuation, this illustrates argon-arc plasma field uniformly and stablizes, peak
Threshold voltage 157V；Single PM2.5 purifying rate is 94.5%, single purifying formaldehyde rate 92.3%, single bacterium, virus purified rate
96.8%.Purifying ozone concentration at air outlet is 0.013ppm, this is lower than the 1.5ppm of national safety standard.
Embodiment two:
The diameter 1mm of copper electrode twine, grid spacing 20mm, coating layer thickness 0.2mm, all substances are mass fraction.
The first step of the invention is by 95.0% polypropylene of purity (1000 parts) and (10 parts) of 95.0% polyacrylic acid of purity by certain ratio
Then example uniformly mixing adds a certain amount of analytically pure benzoyl peroxide (1 part) and 95.0% polyvinyl alcohol of purity (1 part).
Second step is that Extrusion Coating is on copper mesh surface at 160 DEG C by first step mixture, so that copper net electrode is all
Copper mesh line is all coated in the mixture completely, in this way formation medium blocking discharge electrode.
Third step is as discharge electrode, then the material that will be prepared is mounted in plasma purification device equipment
Crest voltage when stable testing plasma generates, and using GB/T18801-2015 " air purifier " and
GB21551.3 " antibacterial of household and similar applications electric appliance, degerming, purification function air purifier particular/special requirement " measurement application
The filter efficiency and sterilizing bactericidal property of the clarifier of NEW TYPE OF COMPOSITE plasma electrode, ozone leakage detection is using in room air
Ozone sanitary standard " GB/T 18202-2000 ".
Test result shows: discharge loop electric current is stablized without generating fluctuation, this illustrates argon-arc plasma field uniformly and stablizes, peak
Threshold voltage 242V；Single PM2.5 purifying rate is 85.7%, single purifying formaldehyde rate 84.3%, single bacterium, virus purified rate
87.9%.Purifying ozone concentration at air outlet is 0.036ppm, this is lower than the 1.5ppm of national safety standard.
Embodiment three:
The diameter 0.2mm of copper electrode twine, grid spacing 4mm, coating layer thickness 0.08mm, all substances are mass parts
Number.
The first step of the invention is by 96.0% polypropylene of purity (1000 parts) and 96.0% polyacrylic acid of purity (20 parts)
Then uniformly mixing by a certain percentage adds a certain amount of analytically pure benzoyl peroxide (0.2 part) and the poly- second of purity 96.0%
Enol (2 parts).
Second step is that Extrusion Coating is on copper mesh surface at 165 DEG C by first step mixture, so that copper net electrode is all
Copper mesh line is all coated in the mixture completely, in this way formation medium blocking discharge electrode.
Third step is as discharge electrode, then the material that will be prepared is mounted in plasma purification device equipment
Crest voltage when stable testing plasma generates, and using GB/T18801-2015 " air purifier " and
GB21551.3 " antibacterial of household and similar applications electric appliance, degerming, purification function air purifier particular/special requirement " measurement application
The filter efficiency and sterilizing bactericidal property of the clarifier of NEW TYPE OF COMPOSITE plasma electrode, ozone leakage detection is using in room air
Ozone sanitary standard " GB/T 18202-2000 ".
Test result shows: discharge loop electric current is stablized without generating fluctuation, this illustrates argon-arc plasma field uniformly and stablizes, peak
Threshold voltage 231V；Single PM2.5 purifying rate is 86.1%, single purifying formaldehyde rate 85.2%, single bacterium, virus purified rate
88.4%.Purifying ozone concentration at air outlet is 0.031ppm, this is lower than the 1.5ppm of national safety standard.
Example IV:
The diameter 0.3mm of copper electrode twine, grid spacing 6mm, coating layer thickness 0.09mm, all substances are mass parts
Number.
The first step of the invention is by 97.0% polypropylene of purity (1000 parts) and 97.0% polyacrylic acid of purity (25 parts)
Then uniformly mixing by a certain percentage adds a certain amount of analytically pure benzoyl peroxide (0.3 part) and the poly- second of purity 97.0%
Enol (3 parts).
Second step is that Extrusion Coating is on copper mesh surface at 168 DEG C by first step mixture, so that copper net electrode is all
Copper mesh line is all coated in the mixture completely, in this way formation medium blocking discharge electrode.
Third step is as discharge electrode, then the material that will be prepared is mounted in plasma purification device equipment
Crest voltage when stable testing plasma generates, and using GB/T18801-2015 " air purifier " and
GB21551.3 " antibacterial of household and similar applications electric appliance, degerming, purification function air purifier particular/special requirement " measurement application
The filter efficiency and sterilizing bactericidal property of the clarifier of NEW TYPE OF COMPOSITE plasma electrode, ozone leakage detection is using in room air
Ozone sanitary standard " GB/T 18202-2000 ".
Test result shows: discharge loop electric current is stablized without generating fluctuation, this illustrates argon-arc plasma field uniformly and stablizes, peak
Threshold voltage 226V；Single PM2.5 purifying rate is 86.6%, single purifying formaldehyde rate 85.5%, single bacterium, virus purified rate
88.7%.Purifying ozone concentration at air outlet is 0.029ppm, this is lower than the 1.5ppm of national safety standard.
Embodiment five:
The diameter 0.4mm of copper electrode twine, grid spacing 10mm, coating layer thickness 0.1mm, all substances are mass parts
Number.
The first step of the invention is by 98.0% polypropylene of purity (1000 parts) and 98.0% polyacrylic acid of purity (30 parts)
Then uniformly mixing by a certain percentage adds a certain amount of analytically pure benzoyl peroxide (0.4 part) and the poly- second of purity 98.0%
Enol (4 parts).
Second step is that Extrusion Coating is on copper mesh surface at 170 DEG C by first step mixture, so that copper net electrode is all
Copper mesh line is all coated in the mixture completely, in this way formation medium blocking discharge electrode.
Third step is as discharge electrode, then the material that will be prepared is mounted in plasma purification device equipment
Crest voltage when stable testing plasma generates, and using GB/T18801-2015 " air purifier " and
GB21551.3 " antibacterial of household and similar applications electric appliance, degerming, purification function air purifier particular/special requirement " measurement application
The filter efficiency and sterilizing bactericidal property of the clarifier of NEW TYPE OF COMPOSITE plasma electrode, ozone leakage detection is using in room air
Ozone sanitary standard " GB/T 18202-2000 ".
Test result shows: discharge loop electric current is stablized without generating fluctuation, this illustrates argon-arc plasma field uniformly and stablizes, peak
Threshold voltage 203V；Single PM2.5 purifying rate is 86.9%, single purifying formaldehyde rate 86.1%, single bacterium, virus purified rate
89.2%.Purifying ozone concentration at air outlet is 0.024ppm, this is lower than the 1.5ppm of national safety standard.
Embodiment six:
The diameter 0.5mm of copper electrode twine, grid spacing 12mm, coating layer thickness 0.12mm, all substances are mass parts
Number.
The first step of the invention is by 98.0% polypropylene of purity (1000 parts) and 98.0% polyacrylic acid of purity (40 parts)
Then uniformly mixing by a certain percentage adds a certain amount of analytically pure benzoyl peroxide (0.5 part) and the poly- second of purity 98.0%
Enol (5 parts).
Second step is that Extrusion Coating is on copper mesh surface at 172 DEG C by first step mixture, so that copper net electrode is all
Copper mesh line is all coated in the mixture completely, in this way formation medium blocking discharge electrode.
Third step is as discharge electrode, then the material that will be prepared is mounted in plasma purification device equipment
Crest voltage when stable testing plasma generates, and using GB/T18801-2015 " air purifier " and
GB21551.3 " antibacterial of household and similar applications electric appliance, degerming, purification function air purifier particular/special requirement " measurement application
The filter efficiency and sterilizing bactericidal property of the clarifier of NEW TYPE OF COMPOSITE plasma electrode, ozone leakage detection is using in room air
Ozone sanitary standard " GB/T 18202-2000 ".
Test result shows: discharge loop electric current is stablized without generating fluctuation, this illustrates argon-arc plasma field uniformly and stablizes, peak
Threshold voltage 189V；Single PM2.5 purifying rate is 87.4%, single purifying formaldehyde rate 86.8%, single bacterium, virus purified rate
89.7%.Purifying ozone concentration at air outlet is 0.021ppm, this is lower than the 1.5ppm of national safety standard.
Embodiment seven:
The diameter 0.7mm of copper electrode twine, grid spacing 16mm, coating layer thickness 0.17mm, all substances are mass parts
Number.
The first step of the invention is by 98.0% polypropylene of purity (1000 parts) and 99.0% polyacrylic acid of purity (45 parts)
Then uniformly mixing by a certain percentage adds a certain amount of analytically pure benzoyl peroxide (0.6 part) and the poly- second of purity 98.0%
Enol (6 parts).
Second step is that Extrusion Coating is on copper mesh surface at 175 DEG C by first step mixture, so that copper net electrode is all
Copper mesh line is all coated in the mixture completely, in this way formation medium blocking discharge electrode.
Third step is as discharge electrode, then the material that will be prepared is mounted in plasma purification device equipment
Crest voltage when stable testing plasma generates, and using GB/T18801-2015 " air purifier " and
GB21551.3 " antibacterial of household and similar applications electric appliance, degerming, purification function air purifier particular/special requirement " measurement application
The filter efficiency and sterilizing bactericidal property of the clarifier of NEW TYPE OF COMPOSITE plasma electrode, ozone leakage detection is using in room air
Ozone sanitary standard " GB/T 18202-2000 ".
Test result shows: discharge loop electric current is stablized without generating fluctuation, this illustrates argon-arc plasma field uniformly and stablizes, peak
Threshold voltage 161V；Single PM2.5 purifying rate is 89.2%, single purifying formaldehyde rate 88.1%, single bacterium, virus purified rate
91.3%.Purifying ozone concentration at air outlet is 0.017ppm, this is lower than the 1.5ppm of national safety standard.
Embodiment eight:
The diameter 0.9mm of copper electrode twine, grid spacing 18mm, coating layer thickness 0.18mm, all substances are mass parts
Number.
The first step of the invention is by 99.5% polypropylene of purity (1000 parts) and 99.5% polyacrylic acid of purity (48 parts)
Then uniformly mixing by a certain percentage adds a certain amount of analytically pure benzoyl peroxide (0.8 part) and the poly- second of purity 99.5%
Enol (8 parts).
Second step is that Extrusion Coating is on copper mesh surface at 178 DEG C by first step mixture, so that copper net electrode is all
Copper mesh line is all coated in the mixture completely, in this way formation medium blocking discharge electrode.
Third step is as discharge electrode, then the material that will be prepared is mounted in plasma purification device equipment
Crest voltage when stable testing plasma generates, and using GB/T18801-2015 " air purifier " and
GB21551.3 " antibacterial of household and similar applications electric appliance, degerming, purification function air purifier particular/special requirement " measurement application
The filter efficiency and sterilizing bactericidal property of the clarifier of NEW TYPE OF COMPOSITE plasma electrode, ozone leakage detection is using in room air
Ozone sanitary standard " GB/T 18202-2000 ".
Test result shows: discharge loop electric current is stablized without generating fluctuation, this illustrates argon-arc plasma field uniformly and stablizes, peak
Threshold voltage 159V；Single PM2.5 purifying rate is 92.9%, single purifying formaldehyde rate 91.2%, single bacterium, virus purified rate
94.7%.Purifying ozone concentration at air outlet is 0.014ppm, this is lower than the 1.5ppm of national safety standard.
By above-mentioned representative embodiment it can be seen that NEW TYPE OF COMPOSITE low-voltage plasma electrode can be produced in 160V or so
Raw stable argon-arc plasma field, and ozone yield is far below national safety standard.Most importantly, it is generated under low-voltage
Plasma remains to preferably purify air.In addition, dramatically increasing argon-arc plasma field intensity by improving crest voltage, purify
Efficiency is consequently increased.
Stabilized plasma field could be generated accordingly, with respect to high-frequency and high-voltage required for traditional plasma electrode, the present invention
In only need 160V i.e. and can produce stable argon-arc plasma field, and it is still higher to purify air efficiency, in addition, ozone yield is remote
Lower than conventional electrode materials.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of discharge electrode characterized by comprising
Metal mesh is coated with dielectric barrier on the surface of the metal mesh；Wherein, the surface of the dielectric barrier has more
A point discharge point；
Wherein, the dielectric barrier is made of polypropylene, benzoyl peroxide, polyacrylic acid and polyvinyl alcohol；The metal
Net is formed by knit-mesh, and the diameter of the twine is 0.1~1mm；The dielectric barrier is wrapped on the twine；It is described
The mesh of metal mesh is rectangular mesh, and the side length of the rectangular mesh is 0.5~20mm.
2. discharge electrode according to claim 1, which is characterized in that the metal mesh is copper mesh.
3. discharge electrode according to claim 1, which is characterized in that the dielectric barrier with a thickness of 0.05~2mm.
4. a kind of plasma generator, which is characterized in that including discharge electrode described in any one of claims 1 to 3.
5. plasma generator according to claim 4, which is characterized in that the plasma generator includes described in two
Discharge electrode, one of them described discharge electrode is discharge electrode described in any one of claims 1 to 3, described in another
Discharge electrode is metal mesh.
6. a kind of air cleaning facility, including plasma generator, which is characterized in that the plasma generator is claim
Plasma generator described in 4 or 5.
7. a kind of preparation method of discharge electrode, the preparation method described in any one of manufacturing claims 1 to 3 for putting
Electrode characterized by comprising
Step 1: a metal mesh is obtained；
Step 2: processing coating mix, and by the coating mix be coated on the metal mesh at a predetermined temperature with
Form the dielectric barrier that surface has multiple point discharge points.
8. preparation method according to claim 7, which is characterized in that the step of processing the coating mix include:
The polyacrylic acid of the polypropylene of predetermined purity and predetermined purity is mixed to form initial mixture by predetermined ratio；
The benzoyl peroxide of predetermined purity and the polyvinyl alcohol of predetermined purity are added into the initial mixture to be formed
State coating mix.
9. preparation method according to claim 8, which is characterized in that the polyacrylic purity is 95.0%~
99.9%.
10. preparation method according to claim 8, which is characterized in that the purity of the polyacrylic acid be 95.0%~
99.9%.
11. preparation method according to claim 8, which is characterized in that the predetermined temperature is 160~180 degree.
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Citations (2)
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|---|---|---|---|---|
| CN1159085A (en) * | 1996-12-16 | 1997-09-10 | 戴建国 | HF-assisted LF medium blocking-discharge method and equipment |
| CN103269556A (en) * | 2013-05-14 | 2013-08-28 | 哈尔滨工业大学 | Large-area atmosphere plasma even discharge electrode |
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| DE60313864T2 (en) * | 2003-08-14 | 2008-01-17 | Fujifilm Manufacturing Europe B.V. | Arrangement, method and electrode for generating a plasma |
| KR100701400B1 (en) * | 2005-11-01 | 2007-03-28 | 재단법인 포항산업과학연구원 | Non-thermal Plasma Pre-ionizer for the Removal of Oil Mist |
| JP4852471B2 (en) * | 2007-05-01 | 2012-01-11 | 株式会社Ｔｒｉｎｃ | DBD plasma static eliminator |
| CN101022074A (en) * | 2007-03-14 | 2007-08-22 | 万京林 | Differential feed dielectric barrier discharging low-temperature plasma device |
| CN101279101A (en) * | 2007-04-02 | 2008-10-08 | 张涉 | Atmospheric low-temperature plasma deodorizer |
| CN105333514B (en) * | 2014-08-12 | 2018-11-23 | 静域(上海)科技有限公司 | Dielectric impedance low-temp. plasma air purifier |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159085A (en) * | 1996-12-16 | 1997-09-10 | 戴建国 | HF-assisted LF medium blocking-discharge method and equipment |
| CN103269556A (en) * | 2013-05-14 | 2013-08-28 | 哈尔滨工业大学 | Large-area atmosphere plasma even discharge electrode |
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