CN1725619A - Power supply for low temp. plasma treatment of wool fibre - Google Patents
Power supply for low temp. plasma treatment of wool fibre Download PDFInfo
- Publication number
- CN1725619A CN1725619A CN 200510050464 CN200510050464A CN1725619A CN 1725619 A CN1725619 A CN 1725619A CN 200510050464 CN200510050464 CN 200510050464 CN 200510050464 A CN200510050464 A CN 200510050464A CN 1725619 A CN1725619 A CN 1725619A
- Authority
- CN
- China
- Prior art keywords
- power supply
- transformer
- full bridge
- wool fiber
- low temperature
- Prior art date
- 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
Links
- 210000002268 wool Anatomy 0.000 title claims abstract description 20
- 239000000835 fiber Substances 0.000 title claims abstract description 15
- 238000009832 plasma treatment Methods 0.000 title description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Plasma Technology (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
A low temperature plasma power for treating wool fiber is prepared as connecting output end of rectifying circuit to input end of full bridge inversion circuit, connecting inductance to low voltage side of transformer in series and connecting this series circuit to output end of full bridge inversion circuit, connecting two ends of transformer high voltage side separately to two discharging electrodes. It can generate uniform glow discharge for processing wool fiber surface.
Description
Technical field
The present invention relates to the plasma treatment power supply, especially the Low Temperature Plasma Treating power supply of wool fiber.
Technical background
In the past, the chemical reagent that adopt come wool fiber is carried out surface treatment more in the industry, and this can cause to a certain degree pollution to environment.Adopt lower temperature plasma technology that wool fiber is carried out the favor that the surface-treated dry treatment method more and more is subjected to people in recent years, its main advantage is that processing method is easy, can move with pipeline synchronization, and environment not produced pollution.The most frequently used wool surface low-temperature method of plasma processing comprises: the method for low pressure glow discharge and the method for the dielectric barrier discharge under the normal pressure.Though the discharge of the method for low pressure glow discharge evenly, treatment effect is good, and it needs vaccum-pumping equipment, and system is expensive, and is unsuitable for the synchronous operation of streamline.Dielectric barrier discharge can obtain large-area low temperature plasma under normal pressure, and has obtained using widely.But the dielectric barrier discharge in the commercial Application mostly is the form of filament discharge, be full of between two electrodes in time and all be the discharge filament of random distribution on the space, this discharge type is uneven, though and the discharge filament diameter is little but current density is very big, therefore can cause the perforation and the burning of wool.In recent years, the various countries scholar obtains glow discharge under the atmospheric pressure in the form of research and utilization dielectric barrier discharge always, but they nearly all need to fill certain rare gas or mist, perhaps need special electrode structure, these all are unfavorable for wool surface is realized industrial treatment.
Summary of the invention
The Low Temperature Plasma Treating power supply that the purpose of this invention is to provide a kind of wool fiber, to realize in the air under atmospheric pressure, adopt the electrode of common dielectric barrier discharge, obtain the even discharge of the similar glow discharge under the atmospheric pressure, even, soft discharge process is carried out on the wool surface.
The technical scheme that the present invention solves its technical problem employing is: the Low Temperature Plasma Treating power supply of wool fiber comprises rectification circuit, full bridge inverter, inductance, the parallel sparking electrode of being separated by with two of step-up transformer, the output of rectification circuit links to each other with the input of full bridge inverter, the step-down side of inductance and transformer is connected in series, this series circuit is connected to the output of full bridge inverter, and the two ends on transformer high-voltage limit link to each other with two sparking electrodes respectively.
Rectification circuit among the present invention can adopt does not control rectification or controlled rectification dual mode.
The control of power supply of the present invention can be adopted the mature pulse voltage of prior art to regulate (PAM) and pulse frequency and regulate the mode that mode that (PFM) combine or pulse width modulation (PWM) and pulse frequency adjusting combine.The PAM mode is thereby that the adjustable range of inverter circuit output voltage amplitude is 0～500V by the DC bus-bar voltage of the trigger angle control rectification output of regulating the rectifying device thyristor.The PWM mode adopts phase shifting control, and by regulating the pulse duration that phase shifting angle is regulated output voltage, the adjustable range of phase shifting angle is 0～180 °.The PFM mode can be regulated the frequency of output voltage, and the frequency-tuning range of output voltage is 50～50KHz.
During work, the 380V alternating current of electrical network input becomes direct current through rectifying and wave-filtering, and this direct current is reverse into ac square wave by full bridge inverter.The output voltage of inverter circuit produces the two ends that the high-voltage alternating square wave directly is added in load, i.e. two parallel sparking electrodes of being separated by through inductance and step-up transformer.Pending wool fiber is placed between two electrodes, because the impact of square-wave voltage rising edge, can make two interelectrode whole air gap volumes simultaneously breakdown, rather than the puncture of filament passage at random, a large amount of little snowslides rather than single big snowslide produced.The voltage that impacts in the load later reduces again, electric field on the air gap can not increase because of the accumulation of space charge, therefore numerous little snowslides can not accumulate a big snowslide, the cation of discharge generation can arrive negative electrode before big snowslide forms, cause exciting of secondary ion, thereby produce the discharge that to control oneself.It is even and soft to discharge, and the glow discharge under the similar atmospheric pressure can not produce the moment high-energy-density of certain several point.
The former limit of moment transformer transient current is very big puncturing, because inductive current can not suddenly change, so inductance can cushion the current spike of switching tube, prevents current spike breakdown switch pipe.
The invention has the beneficial effects as follows: because the inverter circuit output voltage amplitude, width and frequency are fully adjustable in certain scope, therefore can make the resonance frequency of the operating frequency of inverter circuit, like this high-voltage square-wave rather than the sine wave that can obtain exchanging at the high pressure outlet side of transformer away from transformer leakage inductance and capacitive load.Because the impact of square-wave voltage rising edge can make whole air gap volume simultaneously breakdown, rather than the puncture of filament passage at random, produces a large amount of little snowslides rather than single big snowslide.Thereby the discharge that produces is even and soft, the glow discharge under the similar atmospheric pressure, and the moment high-energy-density that can not produce certain several point makes wool that perforation and burning take place.
Description of drawings
Fig. 1 is the Low Temperature Plasma Treating power supply physical circuit figure of wool fiber.
Embodiment
Referring to Fig. 1, the Low Temperature Plasma Treating power supply of wool fiber comprises: rectification circuit 1, full bridge inverter 2, inductance L, the parallel sparking electrode of being separated by 3,4 with two of step-up transformer T.In the diagram physical circuit, the full bridge rectifier that rectification circuit 1 is made up of 6 thyristor T1～T6, full bridge inverter 2 is made up of 4 gated transistor Q1～Q4 and the capacitor C s in parallel with each gated transistor, and wherein capacitor C s is used for realizing softening switching tube.The output of rectification circuit 1 links to each other with the input of full bridge inverter 2 by filter capacitor C, the step-down side of inductance L and transformer T is connected in series, this series circuit is connected to the output of full bridge inverter 2, here, the existence of inductance L can limit the impact of the impulse current of high-voltage alternating square wave generation to switching tube, improves the power factor of system.
The two ends of transformer T hot side link to each other with two parallel sparking electrodes 3,4 respectively.One of them is a high-field electrode 3, another is will have the surface coverage of an electrode that dielectric 5, legend are arranged at least in 4, two electrodes of grounding electrode, the surface of two electrodes all is coated with dielectric 5, and the material of dielectric can be pottery, rubber, glass etc.It between two dielectrics discharge air-gap.
Rectification circuit adopts phase shifting control to regulate output voltage amplitude, and inverter adopts variable-frequency phase-shift PWM controlled to regulate the width and the frequency of output voltage, and the series inductance of inverter outlet side is used for determining the slope of rise of output voltage edge and trailing edge.Inverter operating frequency in this example is 50Hz, the resonance frequency of step-up transformer and load is 20kHz, inverter operating frequency is away from the resonance frequency of transformer leakage inductance and capacitive load, like this high-voltage alternating square wave rather than the sine wave that can obtain exchanging at the high pressure outlet side of transformer.
Claims (3)
1. the Low Temperature Plasma Treating power supply of wool fiber, it is characterized in that comprising rectification circuit (1), full bridge inverter (2), inductance (L), the parallel sparking electrode of being separated by of step-up transformer (T) (3,4) with two, the output of rectification circuit (1) links to each other with the input of full bridge inverter (2), inductance (L) is connected in series with the step-down side of transformer (T), this series circuit is connected to the output of full bridge inverter (2), and the two ends of transformer (T) hot side link to each other with two sparking electrodes (3,4) respectively.
2. the Low Temperature Plasma Treating power supply of wool fiber according to claim 1 is characterized in that having at least in two sparking electrodes (3,4) surface coverage of an electrode that dielectric (5) is arranged.
3. the Low Temperature Plasma Treating power supply of wool fiber according to claim 1 is characterized in that full bridge inverter (2) is by 4 gated transistors (Q1～Q4) and the electric capacity (C in parallel with each gated transistor
s) form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510050464 CN1725619A (en) | 2005-06-27 | 2005-06-27 | Power supply for low temp. plasma treatment of wool fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510050464 CN1725619A (en) | 2005-06-27 | 2005-06-27 | Power supply for low temp. plasma treatment of wool fibre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1725619A true CN1725619A (en) | 2006-01-25 |
Family
ID=35924896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510050464 Pending CN1725619A (en) | 2005-06-27 | 2005-06-27 | Power supply for low temp. plasma treatment of wool fibre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1725619A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457474B (en) * | 2009-01-08 | 2011-11-09 | 浙江大学 | Low-temperature plasma electrical source for loomage surface modification and control method thereof |
| CN102497115A (en) * | 2011-12-09 | 2012-06-13 | 桂林电子科技大学 | Control method of normal-pressure low-temperature plasma power supply and power supply device |
| CN103747606A (en) * | 2013-12-27 | 2014-04-23 | 华中科技大学 | Circuit generated low temperature plasma |
| CN104578891A (en) * | 2014-11-27 | 2015-04-29 | 南通三信塑胶装备科技股份有限公司 | Plasma processing machine for textile fabric printing |
| CN107645239A (en) * | 2017-10-10 | 2018-01-30 | 深圳市信电科技有限公司 | High drive power supply for air purifier capable of generating high-energy ions |
-
2005
- 2005-06-27 CN CN 200510050464 patent/CN1725619A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457474B (en) * | 2009-01-08 | 2011-11-09 | 浙江大学 | Low-temperature plasma electrical source for loomage surface modification and control method thereof |
| CN102497115A (en) * | 2011-12-09 | 2012-06-13 | 桂林电子科技大学 | Control method of normal-pressure low-temperature plasma power supply and power supply device |
| CN102497115B (en) * | 2011-12-09 | 2014-01-01 | 桂林电子科技大学 | Normal-pressure low-temperature plasma power supply and power supply device |
| CN103747606A (en) * | 2013-12-27 | 2014-04-23 | 华中科技大学 | Circuit generated low temperature plasma |
| CN104578891A (en) * | 2014-11-27 | 2015-04-29 | 南通三信塑胶装备科技股份有限公司 | Plasma processing machine for textile fabric printing |
| CN107645239A (en) * | 2017-10-10 | 2018-01-30 | 深圳市信电科技有限公司 | High drive power supply for air purifier capable of generating high-energy ions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102548177B (en) | Discharge electrode structure of plasma air purification device | |
| CN100358198C (en) | Method for uniform glow discharge in atmosphere air | |
| CN1725619A (en) | Power supply for low temp. plasma treatment of wool fibre | |
| CN104333231A (en) | LCC serial-parallel resonant power supply and method for increasing switching frequency by power supply | |
| CN206135741U (en) | High pressure plasma power | |
| CN103841741A (en) | Barometric pressure plasma generator based on dielectric barrier discharge | |
| CN104393766B (en) | Overlapped type power supply control system for dust collection | |
| CN101882878A (en) | High-power high-frequency high-voltage rectifier transformer for electric precipitation | |
| CN103701331A (en) | LLC (Logical Link Control) resonant wide-voltage-range output high-efficiency power supply with variable resonant frequency | |
| CN101902862A (en) | Harmonic constant current source for atmospheric glow discharge | |
| CN102909444A (en) | Pulsed power supply with parallel high-energy capacitors for electrosparking | |
| CN102409525A (en) | Low temperature plasma generating device and control method thereof | |
| CN205356156U (en) | Intelligent high frequency and high voltage DC power supply based on DSP | |
| CN203507790U (en) | Double-medium low-temperature plasma reactor based on steep front edge nanosecond pulsed power supply | |
| CN2799637Y (en) | Low-temperature plasma treatment power supply for wool fiber | |
| CN104767388B (en) | A kind of ozonizer power supply | |
| CN201880600U (en) | High-frequency and high-voltage power supply for electric precipitator | |
| CN103683981B (en) | Unipolarity low-temperature plasma electrical source | |
| CN108418440A (en) | The dual-purpose three level low frequency of list/three-phase dries power supply | |
| CN204583165U (en) | For the parallel plate type reaction of low temperature plasma device of catalyst surface modification | |
| CN102233301A (en) | High-frequency pulse power supply for electrostatic dust collector | |
| CN207573240U (en) | A kind of electric precipitator high frequency electric source | |
| CN202475274U (en) | Power supply for three-phase bridge inverter high-power high-frequency ozone generators | |
| CN201611851U (en) | High-power high-frequency and high-voltage rectifying transformer for electric dust removal | |
| CN202535620U (en) | Electronic ballast for high-pressure sodium lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20060125 |