CN106714438A - Plasma generator - Google Patents

Plasma generator Download PDF

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Publication number
CN106714438A
CN106714438A CN201611264595.7A CN201611264595A CN106714438A CN 106714438 A CN106714438 A CN 106714438A CN 201611264595 A CN201611264595 A CN 201611264595A CN 106714438 A CN106714438 A CN 106714438A
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CN
China
Prior art keywords
plasma
insulation tube
plasma generator
insulating tube
frequency
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611264595.7A
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Chinese (zh)
Inventor
徐剑光
郑检生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO OULIN INDUSTRIAL Co.,Ltd.
Original Assignee
Ningbo Oulin Kitchen Utensils Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Oulin Kitchen Utensils Co Ltd filed Critical Ningbo Oulin Kitchen Utensils Co Ltd
Priority to CN201611264595.7A priority Critical patent/CN106714438A/en
Publication of CN106714438A publication Critical patent/CN106714438A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00Generating plasma; Handling plasma
    • H05H1/24Generating plasma
    • H05H1/26Plasma torches
    • H05H1/30Plasma torches using applied electromagnetic fields, e.g. high frequency or microwave energy

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The present invention belongs to the plasma technical field and relates to a plasma generator. The plasma generator of the present invention comprises a plasma insulating tube and a metal layer arranged at the outer surface of the plasma insulating tube; the plasma insulating tube is hollow inside and has two openings; the inlet end of the plasma insulating tube is connected with an air pump; a helical vane type conductor is arranged in the plasma insulating tube; the helical vane type conductor extends out from the outlet end of the plasma insulating tube; and a voltage adjustable high-frequency high-voltage power source is connected between the metal layer and the helical vane type conductor. According to the plasma generator of the invention, the helical vane type conductor is adopted, so that pumped air can advance in rotation along the surface of the helical vane type conductor in the plasma insulating tube, so that the detention time of the air in the plasma insulating tube can be prolonged, and therefore, on the one hand, the number of plasmas can be increased, and on the other hand, the uniformity of the mixing density of the plasmas and the pumped air is improved, and thus, stable plasma discharge performance can be realized, and sterilization and degradation effects are improved; and voltage rise time is short, so that the degradation of ozone can be accelerated.

Description

A kind of plasma generator
Technical field
The present invention relates to technical field of plasma, more particularly to a kind of plasma generator, and in particular to Yi Zhongjie Structure is simple, low cost of manufacture, the plasma generator with stable plasma discharge performance and long service life.
Background technology
Plasma is made up of substantial amounts of positive negative charged particles and neutral particle, and show collective behavior one kind standard in Property gas.Plasma has been obtained for being widely applied in the industry, particularly in the neck such as metallurgical, chemical industry and optical material Domain.At present, the effect such as the sterilized, deodorant of plasma, dedusting is also gradually promoted the use of to Household appliances field.
But, using earthenware as plasma generator high_voltage isolation material more than current plasma generator, should Material exists in uneven thickness, and the diverse location pressure voltage of earthenware is incomplete same, produces plasma uneven;Simultaneously in pottery A piece metal bar is installed, and the plasma negligible amounts that produce uneven with the gas mixing that pumps into, some places are produced in porcelain tube Raw plasma, some places are not produced, some places there may be ozone, so cause sterilized, deodorant, dust removing effects poor and The unstable problem of discharging function, is also unfavorable for extending the service life of plasma generator.
The content of the invention
(1) technical problem to be solved
The purpose of the present invention is:There is provided a kind of simple structure, low cost of manufacture, with stabilization plasma discharge performance and , there are sterilized, deodorant, dust removing effects to solve existing plasma generator in the plasma generator of long service life Difference, the problem that discharging function is unstable and service life is short.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides a kind of plasma generator, it includes that internal is hollow And plasma insulation tubes and the metal level of the tube outer surface that insulated located at the plasma with two openings, the grade from The entrance point of daughter insulation tube is connected with air pump;Helical blade type electric conductor, the spiral shell are set in the plasma insulation tube Vane chip electric conductor is drawn from the port of export of the plasma insulation tube and to be connected voltage between the metal level adjustable High-frequency and high-voltage power supply.
Wherein, the helical blade type electric conductor includes conductive pole and the axis direction disk in the shape of a spiral along the conductive pole The blade of rotation, the conductive pole and blade are made of copper or stainless steel.
Wherein, the helical blade type electric conductor is not more than with the minimum range of the inwall of the plasma insulation tube 0.5mm。
Wherein, the amplitude range of the high-frequency and high-voltage power supply is 5-20kV;The frequency range of the high-frequency and high-voltage power supply is 1-50kHz;The rising time of the high-frequency and high-voltage power supply is not more than 100ns.
Wherein, the metal level is the electrode being made up of conductive metal foil.
Wherein, the conductive metal foil is made of goldleaf or silver foil or Copper Foil or aluminium foil.
Wherein, the conductive metal foil is Nian Jie or screw thread company with the connected mode of plasma insulation tube outer surface Connect or rivet interlacement.
Wherein, the ceramic material system that the plasma insulation tube is shaped using quartz glass material or alumina sintering Into.
(3) beneficial effect
Above-mentioned technical proposal of the invention has the following advantages that:The invention provides a kind of plasma generator, its bag It is hollow and with two the plasma insulation tubes and the metal level located at plasma insulation tube outer surface of opening to include internal, The entrance point of plasma insulation tube is connected with air pump;Helical blade type electric conductor, helical-blade are set in plasma insulation tube Chip electric conductor is drawn from the port of export of plasma insulation tube and the adjustable high-frequency high-voltage of voltage is connected between metal level Source.The plasma generator that the application is provided, simple structure, and helical blade can be provided with by plasma insulation tube Formula electric conductor so that the air for pumping into is rotationally advancing and in high-frequency high-voltage in plasma insulation tube along helical blade surface It is plasma to be ionized in the presence of the electrion of source, extends holdup time of the air in plasma insulation tube, one Aspect improves plasma quantity, on the other hand improves the uniformity of plasma and the hybrid density for pumping into gas, enters And there is the plasma discharge performance of stabilization, the effect of sterilized degraded is substantially increased, also beneficial to increasing the service life;Simultaneously By using the adjustable high-frequency and high-voltage power supply of voltage, voltage rising time is short, beneficial to the degraded for accelerating ozone, such that it is able to effective Reduce the yield of ozone, it is to avoid the pollution to room air, it is practical, produce and promote beneficial to being standardized.
Brief description of the drawings
Fig. 1 be a kind of plasma insulation tube of plasma generator embodiment of the invention, plasma insulation tube and The structural representation of the arrangement of helical blade type electric conductor;
Fig. 2 is plasma insulation tube, air pump and the high-frequency high-voltage of a kind of plasma generator embodiment of the invention The structural representation of the arrangement in source.
In figure:1:Helical blade type electric conductor;1-1:Conductive pole;1-2:Blade;2:Plasma insulation tube;3:Import End;4:The port of export;5:Metal level;6:Air pump;7:High-frequency and high-voltage power supply.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is A part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in Figure 1 to Figure 2, a kind of plasma generator is the embodiment of the invention provides, it includes that internal is hollow And with two the plasma insulation tubes 2 and the metal level 5 located at the outer surface of plasma insulation tube 2 of opening, in this implementation In example, metal level 5 is used to be grounded, used as earth electrode;The entrance point 3 of plasma insulation tube 2 is connected with air pump 6, plasma The port of export 4 of body insulation tube 2 both can be with the liquid for needing microorganism present in the organic substances such as degrading pesticide residues or water etc. Body is connected, to carry out degraded operation;Can also be connected with closed container, with the operation that carried out disinfection to closed container;Plasma Helical blade type electric conductor 1 is set in insulation tube 2, and helical blade type electric conductor 1 draws from the port of export 4 of plasma insulation tube 2 Go out and the adjustable high-frequency and high-voltage power supply 7 of voltage is connected between metal level 5;Wherein, metal level 5 is used as earth electrode, helical-blade Chip electric conductor 1 is used as high-field electrode.By the plasma generator provided using the application so that the air for pumping into is being waited Be rotationally advancing along helical blade 1-2 surfaces in gas ions insulation tube 2 and be ionized in the presence of high-frequency and high-voltage power supply 7 for etc. from Daughter, wherein, plasma is between the inwall of helical blade type electric conductor 1 and plasma insulation tube 2;Contain in plasma Some excitation state O atoms, OH groups etc. kill the effect of bacterium, degraded participation agricultural chemicals so as to reach with extremely strong oxidisability.
Particularly, the arrow in Fig. 1 and Fig. 2 refers to the airflow direction of the gas for pumping into.
The plasma generator that the application is used, simple structure, process is simple, low manufacture cost;By in plasma Helical blade type electric conductor 1 is provided with body insulation tube 2, holdup time of the air in plasma insulation tube 2 is substantially prolongs, On the one hand plasma quantity is improve, on the other hand improves the uniformity of plasma and the hybrid density for pumping into gas, And then with the plasma discharge performance of stabilization, the effect of sterilized degraded is substantially increased, also beneficial to increasing the service life;Together When by use the adjustable high-frequency and high-voltage power supply 7 of voltage, voltage rising time is short, beneficial to accelerate ozone degraded, such that it is able to Effectively reduce the yield of ozone, it is to avoid the pollution to room air, it is practical, produce and promote beneficial to being standardized.
Specifically, in the present embodiment, helical blade type electric conductor 1 includes conductive pole 1-1 and the axis along conductive pole 1-1 The blade 1-2 that direction is spiraled in the shape of a spiral, conductive pole 1-1 and blade 1-2 are made of copper or stainless steel, can also be used The excellent material of other electric conductivities is made, such as iron or aluminium or aluminium copper.Wherein, the chi of conductive pole 1-1 and blade 1-2 The very little internal diameter size with specific reference to plasma insulation tube 2 mutually should determine that;Preferably, what spiral helicine gas flow was set gets over It is many, then pump into that holdup time of the gas in plasma insulation tube 2 is more long, accordingly, the plasma quantity of generation is more, And plasma is better with the uniformity of the hybrid density for pumping into gas, beneficial to the follow-up sterilized, disinfection efficacy of raising.
Preferably, helical blade type electric conductor 1 is not more than 0.5mm with the minimum range of the inwall of plasma insulation tube 2. To extend the holdup time of the gas pumped into through air pump 6 in plasma insulation tube 2, and avoid entering from plasma insulation tube 2 The gas that mouth end 3 pumps into is without spiral helicine gas flow directly from helical blade type electric conductor 1 and plasma insulation tube 2 Gap in flow out, in the present embodiment, by the most narrow spacing of helical blade type electric conductor 1 and the inwall of plasma insulation tube 2 From being set to no more than 0.5mm, the holdup time for pumping into gas is extended with abundant, with maximize improve it is follow-up sterilized, deodorant and Dust removing effects.
Specifically, the amplitude range of high-frequency and high-voltage power supply 7 is 5-20kV;The frequency range of high-frequency and high-voltage power supply 7 is 1- 50kHz;The rising time of high-frequency and high-voltage power supply 7 is not more than 100ns.In the present embodiment, using the high frequency of voltage adjustable High voltage power supply 7, high precision, dynamic response is fast, and can cause to realize that voltage rises within the extremely short time, beneficial to raising electronics temperature Degree, can accelerate the degraded of ozone, such that it is able to effectively reduce the yield of ozone, it is to avoid the pollution to room air.
Preferably, metal level 5 is the electrode being made up of conductive metal foil, using conductive metal foil as metal level 5, matter Gently, beneficial to the weight for mitigating whole plasma generator, while the conductive stability of metal foil is good, beneficial to further improving The stability of plasma discharge performance.
Preferably, conductive metal foil is made of goldleaf or silver foil or Copper Foil or aluminium foil.Though goldleaf price is relatively expensive, It is its stable chemical performance, electric conductivity is strong and ductility is best, long service life;Silver foil matter is soft, ductility is only second to goldleaf, changes Performance is learned relatively to stablize;Copper Foil, aluminium foil are cheap, and its chemical property is poor with respect to Copper Foil and aluminium foil, specifically can be according to actually applying Work condition selects to make material accordingly.
Preferably, the connected mode of conductive metal foil and the outer surface of plasma insulation tube 2 for it is Nian Jie or be threadedly coupled or Rivet interlacement.In the present embodiment, conductive metal foil is fixed on the outer surface of plasma insulation tube 2 from the mode of bonding, Good fixing effect, and technique is easy, beneficial to production cost is saved, to improve economy.
Preferably, plasma insulation tube 2 is made of the ceramic material that quartz glass material or alumina sintering shape. In the present embodiment, plasma insulation tube 2 is made of quartz glass material, and quartz glass has extremely low thermal expansion system Several, high temperature tolerance, fabulous chemical stability and excellent electrical insulating property, to improve the use longevity of plasma generator Life.
In sum, the invention provides a kind of plasma generator, it includes that internal is hollow and spacious with two Mouthful plasma insulation tube and located at plasma insulate tube outer surface metal level, the entrance point of plasma insulation tube with Air pump is connected;Helical blade type electric conductor is set in plasma insulation tube, and helical blade type electric conductor insulate from plasma The port of export of pipe is drawn and the adjustable high-frequency and high-voltage power supply of voltage is connected between metal level.The plasma hair that the application is provided Raw device, simple structure, and can be by being provided with helical blade type electric conductor in plasma insulation tube so that the air for pumping into exists It is rotationally advancing along helical blade surface and is ionized in the presence of high-frequency and high-voltage power supply electrion in plasma insulation tube It is plasma, extends holdup time of the air in plasma insulation tube, on the one hand improves plasma quantity, separately On the one hand the uniformity of plasma and the hybrid density for pumping into gas is improve, and then with the plasma discharge of stabilization Can, the effect of sterilized degraded is substantially increased, also beneficial to increasing the service life;Simultaneously by high using the adjustable high frequency of voltage Voltage source, voltage rising time is short, beneficial to the degraded for accelerating ozone, such that it is able to effectively reduce the yield of ozone, it is to avoid right The pollution of room air, it is practical, produce and promote beneficial to being standardized.
Finally it should be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that:It still may be used Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic; And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and Scope.

Claims (8)

1. a kind of plasma generator, it is characterised in that:Including inside for hollow and with two openings plasma is exhausted The metal level of edge pipe and the tube outer surface that insulated located at the plasma, entrance point and the air pump of the plasma insulation tube connect Connect;Helical blade type electric conductor is set in the plasma insulation tube, and the helical blade type electric conductor is from the plasma The port of export of body insulation tube is drawn and the adjustable high-frequency and high-voltage power supply of voltage is connected between the metal level.
2. plasma generator according to claim 1, it is characterised in that:The helical blade type electric conductor includes leading Electric post and the blade that spirals in the shape of a spiral of axis direction along the conductive pole, the conductive pole and blade use copper or stainless Steel matter is made.
3. plasma generator according to claim 1, it is characterised in that:The helical blade type electric conductor with it is described The minimum range of the inwall of plasma insulation tube is not more than 0.5mm.
4. plasma generator according to claim 1, it is characterised in that:The amplitude range of the high-frequency and high-voltage power supply It is 5-20kV;The frequency range of the high-frequency and high-voltage power supply is 1-50kHz;The rising time of the high-frequency and high-voltage power supply is little In 100ns.
5. plasma generator according to claim 1, it is characterised in that:The metal level is by conductive metal foil structure Into electrode.
6. plasma generator according to claim 5, it is characterised in that:The conductive metal foil uses goldleaf or silver Paper tinsel or Copper Foil or aluminium foil are made.
7. plasma generator according to claim 5, it is characterised in that:The conductive metal foil and the plasma The connected mode of body insulation tube outer surface is bonding or threaded connection or rivet interlacement.
8. the plasma generator according to claim any one of 1-7, it is characterised in that:The plasma insulation tube The ceramic material shaped using quartz glass material or alumina sintering is made.
CN201611264595.7A 2016-12-30 2016-12-30 Plasma generator Pending CN106714438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611264595.7A CN106714438A (en) 2016-12-30 2016-12-30 Plasma generator

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107410835A (en) * 2017-04-05 2017-12-01 宁波欧琳厨具有限公司 A kind of degradation of pesticide device
CN113104815A (en) * 2021-04-06 2021-07-13 上海置中环保科技股份有限公司 Low-temperature plasma disinfection generator
CN113230840A (en) * 2021-05-13 2021-08-10 江苏科技大学 Low-temperature plasma and SCR (selective catalytic reduction) waste gas treatment device
CN115430268A (en) * 2022-07-29 2022-12-06 国网浙江省电力有限公司双创中心 SF6 waste gas water-cooled dielectric barrier discharge treatment device and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007059108A (en) * 2005-08-23 2007-03-08 Katsuya Tokumura Atmospheric pressure plasma element
JP2010051941A (en) * 2008-08-28 2010-03-11 Katsuya Tokumura Plasma device
CN206332896U (en) * 2016-12-30 2017-07-14 宁波欧琳厨具有限公司 A kind of plasma generator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007059108A (en) * 2005-08-23 2007-03-08 Katsuya Tokumura Atmospheric pressure plasma element
JP2010051941A (en) * 2008-08-28 2010-03-11 Katsuya Tokumura Plasma device
CN206332896U (en) * 2016-12-30 2017-07-14 宁波欧琳厨具有限公司 A kind of plasma generator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107410835A (en) * 2017-04-05 2017-12-01 宁波欧琳厨具有限公司 A kind of degradation of pesticide device
CN113104815A (en) * 2021-04-06 2021-07-13 上海置中环保科技股份有限公司 Low-temperature plasma disinfection generator
CN113230840A (en) * 2021-05-13 2021-08-10 江苏科技大学 Low-temperature plasma and SCR (selective catalytic reduction) waste gas treatment device
CN115430268A (en) * 2022-07-29 2022-12-06 国网浙江省电力有限公司双创中心 SF6 waste gas water-cooled dielectric barrier discharge treatment device and method

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TA01 Transfer of patent application right

Effective date of registration: 20210610

Address after: 315104 Xianghe East Road, Yinzhou District Yinzhou investment and business center, Ningbo, Zhejiang 128

Applicant after: NINGBO OULIN INDUSTRIAL Co.,Ltd.

Address before: No. 1996, Fuqing South Road, Yinzhou District, Ningbo City, Zhejiang Province

Applicant before: NINGBO OULIN KITCHEN UTENSILS Co.,Ltd.

TA01 Transfer of patent application right
CB02 Change of applicant information

Address after: 315104, Zhejiang, Yinzhou District, Ningbo investment center, harmony East Road, No. 128

Applicant after: Ningbo OULIN Technology Co.,Ltd.

Address before: 315104 Xianghe East Road, Yinzhou District Yinzhou investment and business center, Ningbo, Zhejiang 128

Applicant before: NINGBO OULIN INDUSTRIAL Co.,Ltd.

CB02 Change of applicant information
RJ01 Rejection of invention patent application after publication

Application publication date: 20170524

RJ01 Rejection of invention patent application after publication