CN109121278A - A kind of plasma-activated oil treatment provisions - Google Patents
A kind of plasma-activated oil treatment provisions Download PDFInfo
- Publication number
- CN109121278A CN109121278A CN201811101285.2A CN201811101285A CN109121278A CN 109121278 A CN109121278 A CN 109121278A CN 201811101285 A CN201811101285 A CN 201811101285A CN 109121278 A CN109121278 A CN 109121278A
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- plasma
- oil treatment
- discharge module
- current
- activated oil
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/48—Generating plasma using an arc
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/47—Generating plasma using corona discharges
- H05H1/471—Pointed electrodes
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a kind of devices for preparing plasma-activated oil, from the top to the bottom include the discharge module and ring earthing device being oppositely arranged in axial direction；There is gap between the discharge module and ring earthing device；The cavity for holding oil liquid is provided in the ring earthing device, the gap is connected with the cavity；The discharge module includes metal base, multiple current-limiting resistances and corresponding multiple metal needle electrodes from the top to the bottom, the first end of the current-limiting resistance is set to the bottom surface of metal base, second end is connect with the rear end of metal needle electrode, and the front end of the metal needle electrode is opposite with ring earthing device；The device can generate low temperature plasma under atmospheric pressure state, and plasma is shorter the time required to directly handling activation oil, and power consumption is lower, also more environmentally friendly.
Description
Technical field
The invention belongs to sterilization and the field of medical instrument technology, more particularly, to a kind of plasma-activated oil
Processing unit.
Background technique
Plasma can be divided into two kinds according to macroscopic property, one is high-temperature plasma, macro-temperature is up to 106~
108K；Second is low temperature plasma, and macro-temperature only has 102~105K.Why low temperature plasma is referred to as low temperature etc.
Gas ions, although being because electron temperature is very high in its discharge process, heavy particle temperature is very low, and low temperature shape is presented in whole system
State, therefore also referred to as non-equilibrium plasma.
Low temperature plasma is the gas of partial ionization, with a variety of physical chemistry effects in ionization process, such as light spoke
It penetrates, electromagnetic field, charged particle, high energy electron and the active particle of electroneutral etc..It is embodied when plasma is with cytosis
Various biological effect out, to apply the sterilization in multiple fields, including medical instrument, clinical treatment, water/air
Purification, food/packaging material processing etc..
Since the sixties in 19th century, low temperature plasma is just studied for disinfection to the lethal effect of microorganism and goes out
Bacterium.The nineties in 19th century, Johnson Co. develop commercial low pressure hydrogen peroxide plasma sterilizer, and in hospital
It is promoted rapidly, for the low temperature quick sterilization of some accurate medical instruments and special material, but due to low pressure plasma
The generation of body needs vacuum system costly, limits its application.In recent years, the sterilizing effect of atmospheric plasma jet stream
And its in other application medically, become the hot spot studied both at home and abroad.This kind of plasma reactor configurations are small and exquisite, operation side
Just, and sterilization functions broad-spectrum high efficacy is quick, is used widely.By accurately controlling the characteristic of plasma, low-temperature plasma
Body jet stream can be done directly on human skin and tissue.Plasma medical technology, application direction packet are produced based on this basis
Include the quick healing of the sterilization, wound of skin, the quick solidification of blood, treating for skin disease, Apoptosis and cancer
Treatment etc..Traditional discharge of plasma in low temperature device, needs external high voltage power supply, to be difficult to be suitable for amateur people
Member.
Traditional plasma-activated liquid handling device (such as patent document CN205700421U) usually first uses
Gas ions ozone generator generates a large amount of ozone, then ozone is collected and is passed into relevant liquid, generates plasma
Body activation oil or activated water.This mode often inefficiency, needing to continue dozens of hour constantly works, and could more have
The active o content of limit improved in ozone oil.How quickly, the active o content of plasma-activated oil is improved simultaneously in large quantities
Make its long-term preservation, is the difficult point in research.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, according to one aspect of the present invention, the invention discloses one
Kind processing generates the device of plasma-activated oil, from the top to the bottom includes the discharge module being oppositely arranged in axial direction and ring-type
Earthing or grounding means；There is gap between the discharge module and ring earthing device；It is provided with and is used in the ring earthing device
The cavity of oil liquid is held, the gap is connected with the cavity；
The discharge module includes metal base, multiple current-limiting resistances and corresponding multiple metal needles from the top to the bottom
Shape electrode, the first end of the current-limiting resistance are set to the bottom surface of metal base, the rear end company of second end and metal needle electrode
It connects, the front end of the metal needle electrode is opposite with ring earthing device；
The metal needle electrode makes the generation plasma gap in for discharging, the current-limiting resistance it is big
Small is 100k Ω~500k Ω, and the discharge current for controlling metal needle electrode is 0.02A~0.1A.
Preferably, the insulating layer for preventing discharge module to outside electric leakage is provided in the circumferential direction of the discharge module.
Preferably, agitating device is provided in the cavity.
Preferably, the discharge module is additionally provided with the insulation board for fixing multiple metal needle electrodes, the insulation
Through-hole identical with the needle-shaped number of electrodes of metal is provided on plate.
Preferably, the material of the metal needle electrode is copper or tungsten, the length is 30mm~50mm, diameter be 1mm~
3mm。
Preferably, the material of the current-limiting resistance is nanometer antimony oxide tin.
Preferably, the first end and second end of the current-limiting resistance is coated with palladium-silver.
Preferably, the insulating layer includes mutually nested multiple insulating sleeves.
Preferably as a new step, the material of the insulating sleeve is nylon, plastics, polytetrafluoroethylene (PTFE) or organic glass.
Preferably, be provided on the discharge module or ring earthing device for into the gap make-up gas it is logical
Stomata.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
1, by adjusting high-voltage ac power output voltage, air activation device at a distance from ring earthing device, big
It can produce stable low temperature plasma under air pressure conditions；
2, plasma directly handles activation oil, and the active oxygen that can be greatly improved in plasma-activated oil contains
Amount, enhances the biologic medicals performance such as its disinfection and sterilization.
3, general direct current or middle low-frequency high-voltage AC power source can be used in power supply, and power supply output frequency is 10~40kHZ,
0~30kV of output voltage, 0~500W of output power, compared to other radio-frequency power supplies and the pulse power, the acquisition cost of power supply compared with
It is low, it operates also simpler；
4, the mode that other ozone generators generate a large amount of ozone is compared, the time required to plasma directly handles activation oil
Shorter, power consumption is lower, also more environmentally friendly, will not have a adverse impact to experimenter's health；
5, the activation oil retention directly handled through plasma is good, peroxide value by through one month only by
213meq/kg drops to 189meq/kg, and conservation rate has reached 90 or so percent.
In short, the active o content of plasma-activated oil can be easily improved in a short time using the device, and
Power consumption can be effectively reduced, the influence generated to environment is smaller.
Detailed description of the invention
Fig. 1 is the schematic diagram of discharge module；
Fig. 2 is the radial screenshot of discharge module bottom surface；
Fig. 3 is the radial schematic diagram for being grounded culture dish；
Fig. 4 is the electric discharge schematic diagram of plasma-activated oil treatment provisions；
Fig. 5 is the schematic diagram of dielectric barrier discharge device.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which: 1- high-voltage conducting wires；
2- copper plate electrode；3- current-limiting resistance module；4- external insulation；5- metal electrode；6- poly (methyl methacrylate) plate；The hole 7-；8- activation oil；
9- turbine；10- high voltage power supply；11- glass culture dish；12- is grounded iron plate；13- insulation glue stick；14- metallic anode plate；15- is situated between
Matter ceramic wafer.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
In the following description, it is noted that the description as described in direction, if outside, inside, upside or downside are references
Direction description as shown in the figure, in order to explanation and illustration, but the present invention is not limited thereto, but can be according to described
The concrete application situation and installation site of component or device and be varied.
Apparatus of the present invention are described in further details with reference to the accompanying drawing.
An embodiment provides a kind of plasma-activated oil treatment provisions, the plasma-activated oil
Processing unit includes discharge module and ring earthing device.As shown in Figure 1 and Figure 4, discharge module includes high-voltage conducting wires 1, copper sheet
Electrode 2, current-limiting resistance module 3, external insulation 4 and metal needle electrode 5.The diameter of copper plate electrode 2 is 40mm, is set to and puts
The top of electric module, input terminal are connected with 10 output end of external high pressure power supply, low-frequency ac high pressure in the use of high voltage power supply 10
Power supply.
As shown in Figure 1, the output end of copper plate electrode 2 is connected by current-limiting resistance module 3 with multiple metal electrodes 5, metal
By electric conductivity, the material of good and resistance to ablation is made electrode 5, and copper arc welding electrode can be selected or tungsten electrode truncation is ground, in this reality
It applies and uses tungsten needle electrode in example.Each tungsten needle electrode size is consistent, and length is all 4cm, the diameter plasma of tungsten needle electrode
Have an impact less, within the scope of 1mm~3mm all can, needle point must do micronization processes, make it easier to breakdown air form stabilization
Arc discharge.The tip of tungsten needle electrode whether enough sharply to can stablize generate plasma have a great impact, so
Tungsten needle eletrode tip need to be observed when electric discharge, and whether blackening and tungsten needle eletrode tip are because of ablation and rust, if any rust
It needs to be polished immediately with file.Tungsten needle electrode is evenly arranged as regular polygon, and in the present embodiment, the quantity of tungsten needle electrode is 7
It is a, it is fixed on poly (methyl methacrylate) plate, and the horizontal cross-section of 7 tungsten needle electrodes is integrally in regular hexagon.
As shown in Figure 1, current-limiting resistance module 3 is formed by the resistor coupled in parallel of quantity identical as tungsten needle electrode, in the present embodiment
In be made of the big resistor coupled in parallel of 7 200K, the current-limiting resistance of 7 200K is connected with 7 tungsten needle electrodes respectively.Current-limiting resistance
Module 3 is high-pressure glass glaze type resistance, and using nano ATO material as resistive conductor, both ends coat palladium-silver, has small in size, function
The features such as rate is big, and Standard resistance range is wide, high pressure resistant, resistance to pulse, noninductive mainly makees current limliting in high-tension circuit, releases, samples, bearing
Resistance is carried to use.Current-limiting resistance module 3 plays decompression current limliting during tungsten needle electrode breakdown air generates plasma
Effect, because of the effect of high value, although the electric current very little that resistance flows through, can still generate biggish heating power, with processing
Time distributes many heats, and resistive surface temperature is up to one two hundred degrees Celsius.
As shown in Figure 1, current-limiting resistance module 3 and tungsten needle electrode exterior are provided with external insulation 4, external insulation 4 by
Multiple exterior insulation lantern rings and epoxide-resin glue are integrated, and the quantity and size of exterior insulation lantern ring are according to device overall dimensions
It is determined with the resistance quantity of current-limiting resistance module 3, in the present embodiment, the outer diameter of exterior insulation lantern ring is 60mm, and internal diameter is
40mm is nested together between multiple exterior insulation lantern rings, the gap ring inside exterior insulation lantern ring with acrylic glue laminating
Oxygen resin filling, to achieve the purpose that insulation.The good material of the whole and machinability good by insulation performance of exterior insulation lantern ring
It is made, can be nylon, plastics, polytetrafluoroethylene (PTFE) etc., the material that the present embodiment uses is pmma material.Exterior insulation set
Ring need to guarantee the flatness on surface and the size of internal diameter and outer diameter in processing, to ensure to place regular hexagon tungsten needle electrode array
The poly (methyl methacrylate) plate of column can be embedded in.
As shown in Fig. 2, the poly (methyl methacrylate) plate 6 for placing tungsten needle electrode is provided with aperture 7,7 in each tungsten needle position
Tungsten needle corresponds to 7 apertures 7, and the diameter of each aperture 7 is 8mm.In operation process, if you need to the work for improving heating region
Property oxygen content, high pressure gas cylinder can be used to heating region to be passed through oxygen, with ensure the oxygen content for the treatment of gas 20% with
On.In this way, not need to discharge using inert gas, operating condition is simple, low production cost, it is sustainable into
Row.
As shown in Figure 3 and Figure 4, ring earthing device is the glass culture dish 11 of diameter 90mm, regular hexagon tungsten needle electrode
Array to 11 bottom surface of glass culture dish ground connection iron plate 12 electric discharge generate plasma, turbine 9 work when can with stir-activating oil 8,
Keep activation oil 8 more uniformly processed, improves the content of active oxygen.There is ground connection iron plate 12 in 11 bottom surface of glass culture dish, can one
Secondary processing 50ml activation oil.11 bottom of glass culture dish is equipped with small sized turbine 9, and activation oil 8 is sufficiently stirred during electric discharge,
Make to activate oily 8 uniform contact discharge heating regions.
Tungsten needle electrode during discharge, if needle point heat release is excessive, when tip temperature being caused to be more than 200 °, can suspend work
Industry can restore normal operation when falling back on 100 °~200 ° to its temperature drop.
In another embodiment of the present invention, plasma-activated oil treatment provisions include dielectric barrier discharge device
(DBD) and ring earthing device.As shown in figure 5, dielectric barrier discharge device by exterior insulation glue stick 13, internal high pressure conducting wire 1,
Media ceramic plate 15 and bottom metal anode plate 14 form.Exterior insulation glue stick 13 is made by epoxide resin material, straight
Diameter needs comprehensive insulation performance and the comprehensive determination of hand-held comfort level, in the present embodiment a diameter of 60mm.Exterior insulation glue
It is provided on stick central axes for the inner perforated by high-voltage conducting wires, internal high pressure conducting wire is to be resistant to the silica gel of 30KV high pressure to lead
Line is filled between exterior insulation glue stick and internal silica gel conducting wire using acrylic glue.
Internal high pressure conducting wire 1 is connected to external ac power source from bottom metal anode plate 14, and bottom metal anode plate 14 can
Using common metal conductive material, since the electric conductivity of copper is preferable, the present embodiment uses the conductive copper foil paper of diameter 50mm, thick
Degree is 1mm~3mm, is connect with internal high pressure conducting wire with welding manner, and paste in external 13 bottom surface of insulating cement stick.Copper-foil conducting electricity
Paper bottom end is media ceramic plate 15, and the shape no requirement (NR) of media ceramic plate 15 is the pros that side length is 60mm in the present embodiment
Shape, with a thickness of 2mm.Media ceramic plate is made of glass fibre and resin each 50%, is resistant to 800 celsius temperatures, media ceramic
It is filled between plate 15 and exterior insulation glue stick 13 with epoxy resin.
Dielectric barrier discharge device is without considering abrasion caused by needle point multiple discharge, and the area of accessible activation oil is more
Greatly.The external high-voltage ac power of dielectric barrier discharge device, media ceramic plate are inserted into the discharge space between copper electrode and ground level,
When applying sufficiently high alternating voltage on copper electrode, interelectrode gas can also be hit even under very high air pressure
It wears and forms electric discharge.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of plasma-activated oil treatment provisions, which is characterized in that from the top to the bottom include being oppositely arranged in axial direction
Discharge module and ring earthing device；There is gap between the discharge module and ring earthing device；The ring earthing dress
The cavity for holding oil liquid is provided in setting, the gap is connected with the cavity；
The discharge module includes metal base, multiple current-limiting resistances and the corresponding needle-shaped electricity of multiple metals from the top to the bottom
Pole, the first end of the current-limiting resistance are set to the bottom surface of metal base, and second end is connect with the rear end of metal needle electrode, institute
The front end for stating metal needle electrode is opposite with ring earthing device；
The metal needle electrode makes to generate plasma in the gap for discharging, and the size of the current-limiting resistance is
100k Ω~500k Ω, the discharge current for controlling metal needle electrode are 0.02A~0.1A.
2. a kind of plasma-activated oil treatment provisions as described in claim 1, which is characterized in that the week of the discharge module
Set up the insulating layer for preventing discharge module to outside electric leakage.
3. a kind of plasma-activated oil treatment provisions as described in claim 1, which is characterized in that be provided in the cavity
Agitating device.
4. a kind of plasma-activated oil treatment provisions as described in claim 1, which is characterized in that the discharge module is also set
It is equipped with the insulation board for fixing multiple metal needle electrodes, is provided on the insulation board identical as the needle-shaped number of electrodes of metal
Through-hole.
5. a kind of plasma-activated oil treatment provisions as described in claim 1, which is characterized in that the metal needle electrode
Material be copper or tungsten, the length is 30mm~50mm, diameter is 1mm~3mm.
6. a kind of plasma-activated oil treatment provisions as described in claim 1, which is characterized in that the material of the current-limiting resistance
Material is nanometer antimony oxide tin.
7. a kind of plasma-activated oil treatment provisions as described in claim 1, which is characterized in that the of the current-limiting resistance
One end and second end are coated with palladium-silver.
8. a kind of plasma-activated oil treatment provisions as described in claim 1, which is characterized in that the insulating layer includes phase
Mutually nested multiple insulating sleeves.
9. a kind of plasma-activated oil treatment provisions as claimed in claim 8, which is characterized in that the material of the insulating sleeve
Matter is nylon, plastics, polytetrafluoroethylene (PTFE) or organic glass.
10. a kind of plasma-activated oil treatment provisions as described in claim 1, which is characterized in that the discharge module or
The venthole for the make-up gas into the gap is provided on ring earthing device.
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| CN201811101285.2A CN109121278A (en) | 2018-09-20 | 2018-09-20 | A kind of plasma-activated oil treatment provisions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101285.2A CN109121278A (en) | 2018-09-20 | 2018-09-20 | A kind of plasma-activated oil treatment provisions |
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Cited By (8)
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| CN110418484A (en) * | 2019-08-30 | 2019-11-05 | 西安交通大学 | A kind of air jet electric discharge generation device |
| CN110430653A (en) * | 2019-08-08 | 2019-11-08 | 赣南师范大学 | A kind of bilayer gas layout large area dielectric barrier discharge array apparatus |
| CN110461080A (en) * | 2019-08-08 | 2019-11-15 | 北京工商大学 | A kind of low temperature plasma generating device and its method for preparing activated water |
| CN110831312A (en) * | 2019-11-07 | 2020-02-21 | 大连理工大学 | Efficient plasma gas-liquid discharge system |
| CN110933833A (en) * | 2019-12-26 | 2020-03-27 | 华中科技大学 | Plasma activation oil treatment device |
| CN111167389A (en) * | 2020-01-30 | 2020-05-19 | 李智 | Low-temperature plasma active oil preparation device and preparation method |
| EP3895738A1 (en) | 2020-04-16 | 2021-10-20 | Erbe Elektromedizin GmbH | Device and method for plasma activation of a liquid |
| CN113993265A (en) * | 2021-10-21 | 2022-01-28 | 广州大学 | Atmospheric pressure plasma jet array device with coupling between jets |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20190101 |