CN106304591B - A kind of low-temperature plasma jet device - Google Patents
A kind of low-temperature plasma jet device Download PDFInfo
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- CN106304591B CN106304591B CN201610828505.6A CN201610828505A CN106304591B CN 106304591 B CN106304591 B CN 106304591B CN 201610828505 A CN201610828505 A CN 201610828505A CN 106304591 B CN106304591 B CN 106304591B
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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
- H05H1/26—Plasma torches
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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
- H05H2277/00—Applications of particle accelerators
- H05H2277/10—Medical devices
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Abstract
The invention discloses a kind of low-temperature plasma jet devices, it include: that the first snorkel, the second snorkel and high-voltage conducting wires are inserted into cylinder, first snorkel, the second snorkel are installed between the outer wall of cylinder and high-voltage conducting wires, and insulating core is equipped between the first snorkel, the second snorkel and high-voltage conducting wires in cylinder；Cylinder one end is equipped with the spray head of taper, and conical cavity is equipped in spray head, and conical cavity is set to the connecting pin with cylinder, and the center of spray head is equipped with the through-hole being connected to conical cavity；The end of high-voltage conducting wires is connect with high-field electrode, and the outer cover of high-field electrode is equipped with insulation tube, and insulation tube is inserted partially into insulating core；Gas mixer is equipped in conical cavity, the position set on the insulation tube of the through hole of high-field electrode is equipped with demarcation plate.Technical purpose of the invention is that one or two kinds of gases can be passed through and can accurately control to the amount for being passed through gas by providing one kind, so that the low-temperature plasma jet device of plasma efficient transmission.
Description
Technical field
The present invention relates to plasma emission device field, especially a kind of low-temperature plasma jet device.
Background technique
Plasma is usually made of cation, neutral particle and electronics, and high-temperature plasma is not suitable for due to high temperature
Handle sensitive kinds material, and low temperature plasma is the gas of partial ionization, with a variety of physical chemistry effects, as light radiation,
Electromagnetic field, charged particle, high energy electron and active particle of electroneutral etc..It is embodied when low temperature plasma is with cytosis
The biological effect of multiplicity, to apply the sterilization in multiple fields, including medical instrument, clinical treatment etc..
Summary of the invention
Technical purpose of the invention, which is to provide one kind, can be passed through one or two kinds of gases and can be to being passed through gas
Amount can accurately control so that the low-temperature plasma jet device of plasma efficient transmission.
The invention is realized by the following technical scheme:
A kind of Medical low-temperature plasma jet device, comprising: cylinder, the first snorkel, the second snorkel and high pressure are led
Line, first snorkel, the second snorkel and high-voltage conducting wires are inserted into cylinder, and high-voltage conducting wires are set to the center of cylinder, the
One snorkel, the second snorkel are installed between the outer wall of cylinder and high-voltage conducting wires, the first snorkel in cylinder, second logical
Insulating core is equipped between tracheae and high-voltage conducting wires；One end of cylinder is equipped with the spray head of taper, is equipped with conical cavity, conical cavity in spray head
Set on the connecting pin with cylinder, the center of spray head is equipped with the through-hole being connected to conical cavity；The end of high-voltage conducting wires and high-field electrode
The outer cover of connection, high-field electrode is equipped with insulation tube, and insulation tube is inserted partially into insulating core；Gas mixing is equipped in conical cavity
Device, the position set on the insulation tube of the through hole of high-field electrode are equipped with demarcation plate.
Further, first snorkel, be respectively equipped with the first control valve and the second control valve on the second snorkel,
One snorkel, the second snorkel are additionally provided with first flowmeter and second flowmeter respectively.
Further, the structure of first control valve and the second control valve is identical, the first control valve and the second control valve
It include valve body, valve rod, valve plate and composite elastic valve seat, the body top is equipped with valve rod frame, and valve rod frame is equipped with valve body
The through-hole of coaxial inner conductor is equipped with valve plate and composite elastic valve seat in valve body, and valve rod passes through through-hole and valve plate is fixedly mounted, compound
Elastic seat is mounted between valve body and valve plate；
Composite elastic valve seat includes: connection ring, air bag, baffle ring, rotating ring and determines ring, described to determine ring and be fixedly mounted on valve body
Inner wall, rotating ring, which is mounted on by connection ring with center line, to be determined in ring, connection ring, rotating ring with determine ring composition U-type groove in equipped with gas
Capsule, the opening of U-type groove are equipped with baffle ring, and one end of baffle ring is fixedly mounted on the upper of rotating ring, side wall and fixed at the other end of baffle ring
Ring contact, baffle ring and valve interior wall set between mounting distance as 2~10mm；Composite elastic valve seat, which is with valve rod center line, is
Heart symmetrical structure.
Connection ring, rotating ring form U-type groove with ring is determined, and determine ring and are fixedly mounted on valve inner, so that working as the U of valve plate driven torus
Type groove open end turns to rotating ring, and valve plate squeezes rotating ring, so that rotating ring, to U-type groove medial movement, valve plate more squeezes rotating ring, valve plate
Sealing force between rotating ring is stronger, so that the sealing effect of valve plate is more preferable, connection ring, rotating ring are high resiliency, high-ductility with ring is determined
The metal material of property, so that valve seat is more durable compared to rubber valve seat, compared to metal seat valve, the power of opening closing valve
Square is smaller；Air bag is installed in U-type groove, filled with high pressure gas in air bag, the pressure of the high pressure gas in air bag can basis
Pressure medium in valve is adjusted, and air bag can form rotating ring and support, so that the resilience performance of rotating ring is more preferable, more may be used
It leans on；It is equipped with baffle ring by the opening in U-type groove, when valve plate squeezes rotating ring, baffle ring is mobile in the end face for determining ring, so that rotating ring
It can deviate, baffle ring can be by the dielectric impedance outside to valve seat, to protect to the air bag in U-type groove, so that gas
The service life is longer for capsule；Baffle ring and valve interior wall set between mounting distance size determine rotating ring being capable of compressed journey
Degree.
Further, the material of insulation tube is compound quartz material
Further, the first flowmeter, second flowmeter, the first control valve and the second control valve connect with MCU respectively
It connects, high-voltage conducting wires are connected with the high-voltage pulse power source connecting with MCU；First snorkel, the second snorkel are connected with inert gas respectively
And oxygen, inert gas can be helium or nitrogen.
Further, the pressure measured is transmitted to MCU by the first flowmeter and second flowmeter in real time, and MCU is according to pre-
The mixed proportion of the inert gas and oxygen that first set, MCU controls the aperture of the first control valve and the second control valve, so that first
The flow that flowmeter and second flowmeter measure is the ratio value of setting, while MCU controls the voltage of high-voltage pulse power source output
For 8kV, frequency 10kHz, so that spray head generates plasma jet；When needing to sterilize, by the pulsewidth of high-voltage pulse power source
2 μ s are set as, the internal diameter of nozzle is 0.5mm, and inert gas is nitrogen, and the ratio of mixed oxygen is 0.25% in nitrogen；It is needing
When making ablative surgery, the internal diameter of nozzle is 0.5mm, and MCU controls the second control valve and closes, and is connected with helium, MCU in the first snorkel
The voltage for controlling high-voltage pulse power source output is 9kV, frequency 10kHz, so that spray head generates plasma jet.
Further, compound quartz material is formed by following parts by weight:
Silica flour: 70-75 parts, short carbon fiber: 7-8 parts, reinforcing agent: 1-2 parts, 1.5-2 parts of coupling agent, unsaturated-resin:
5-6 parts, aluminium oxide powder: 3-4 parts, curing agent: 0.5-0.7 parts；The length of short carbon fiber is 0.2-0.4 millimeters, short carbon fiber
The filament diameter of dimension is 6-8 microns.
The beneficial effects of the present invention are:
By the way that low-temperature plasma jet device is set as new construction, can be convenient for so that being carried out to one or two kinds of gases
Ionization, coutroi velocity, flow meet and different need needs of medical treatment consequently facilitating the length of control plasma bullet；Pass through
Novel the first control valve and the second control valve used, can accurately control the size of flow, and can be compared to common
Valve, more durable, control is more accurate, has biggish elastic seat space；And by the way that the material of insulation tube is compound
Quartz material, this novel material enables to insulation tube more antidetonation, and toughness is higher, more suitable for as insulation tube
Material can withstand general vibration in actual use, and brittle quartz material is avoided to be easily broken, and make low temperature etc.
The shortcomings that reliability of gas ions fluidic device substantially reduces；And the position of the insulation tube in the through hole of high-field electrode is equipped with
Demarcation plate enables and smoothly flows out by mixed gas, and increases the area of electric discharge.
Connection ring, rotating ring form U-type groove with ring is determined, and determine ring and are fixedly mounted on valve inner, so that working as the U of valve plate driven torus
Type groove open end turns to rotating ring, and valve plate squeezes rotating ring, so that rotating ring, to U-type groove medial movement, valve plate more squeezes rotating ring, valve plate
Sealing force between rotating ring is stronger, so that the sealing effect of valve plate is more preferable, connection ring, rotating ring are high resiliency, high-ductility with ring is determined
The metal material of property, so that valve seat is more durable compared to rubber valve seat, compared to metal seat valve, the power of opening closing valve
Square is smaller；Air bag is installed in U-type groove, filled with high pressure gas in air bag, the pressure of the high pressure gas in air bag can basis
Pressure medium in valve is adjusted, and air bag can form rotating ring and support, so that the resilience performance of rotating ring is more preferable, more may be used
It leans on；It is equipped with baffle ring by the opening in U-type groove, when valve plate squeezes rotating ring, baffle ring is mobile in the end face for determining ring, so that rotating ring
It can deviate, baffle ring can be by the dielectric impedance outside to valve seat, to protect to the air bag in U-type groove, so that gas
The service life is longer for capsule；And this valve does not need for valve plate eccentric to be arranged, so that the manufacture processing cost of valve is lower.
Detailed description of the invention
Fig. 1 is general structure schematic diagram of the invention；
Fig. 2 is the structural schematic diagram for the demarcation plate installed on insulation tube；
Fig. 3 is the structural schematic diagram of the first control valve and the second control valve；
Fig. 4 is the structural schematic diagram of the first control valve and the second control valve base.
Marked in the figure: 1 being cylinder, 2 being spray head, 3 be insulating core, 4 be connector, 5 be the first snorkel, 6 being the second ventilation
Pipe, 7 be high-voltage conducting wires, 8 be high-field electrode, 9 be insulation tube, 10 be conical cavity, 11 be gas mixer, 12 be demarcation plate, 51
For valve body, 52 be valve rod, 53 be valve plate, 54 be composite elastic valve seat, 54.1 be connection ring, 54.2 be air bag, 54.3 be baffle ring,
54.4 are rotating ring and 54.5 are to determine ring.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing.
Medical low-temperature plasma jet device as shown in Figures 1 and 2, including cylinder 1, spray head 2, insulating core 3, connector
4, the first snorkel 5, the second snorkel 6, high-voltage conducting wires 7, high-field electrode 8, insulation tube 9, conical cavity 10, gas mixer 11 and
Demarcation plate 12, first snorkel 5, the second snorkel 6 and high-voltage conducting wires 7 are inserted into cylinder 1, and high-voltage conducting wires 7 are set to circle
The center of cylinder 1, the first snorkel 5, the second snorkel 6 are installed between the outer wall of cylinder 1 and high-voltage conducting wires 7, in cylinder 1
Insulating core 3 is equipped between first snorkel 5, the second snorkel 6 and high-voltage conducting wires 7；One end of cylinder 1 is equipped with the spray head 2 of taper,
Conical cavity 10 is equipped in spray head 2, conical cavity 10 is set to the connecting pin with cylinder 1, and the center of spray head 2 is equipped with to be connected to conical cavity 10
Through-hole；The end of high-voltage conducting wires 7 is connect with high-field electrode 8, and the outer cover of high-field electrode 8 is equipped with insulation tube 9, and insulation tube 9
Divide and is inserted into insulating core 3；Gas mixer 11 is equipped in conical cavity 10, gas mixer 11 is the gas mixing of vane type
Device, the position set on the insulation tube 9 of the through hole of high-field electrode 8 are equipped with demarcation plate 12, and the demarcation plate 12 being equipped with enables to mix
Gas after conjunction smoothly flows out；The first control valve and the second control are respectively equipped on first snorkel 5, the second snorkel 6
Valve, the first snorkel 5, the second snorkel 6 are additionally provided with first flowmeter and second flowmeter respectively.
The structure of first control valve and the second control valve is identical, and the first control valve and the second control valve include valve body
51, valve rod 52, valve plate 53 and composite elastic valve seat 54 are equipped with valve rod frame at the top of the valve body 51, and valve rod frame is set with valve body 51
There is the through-hole of coaxial inner conductor, valve plate 53 and composite elastic valve seat 54 are installed in valve body 51, valve rod 52 passes through through-hole and valve plate 53
It is fixedly mounted, composite elastic valve seat 54 is mounted between valve body 51 and valve plate 53；
Composite elastic valve seat 54 includes: connection ring 54.1, air bag 54.2, baffle ring 54.3, rotating ring 54.4 and determines ring 54.5, institute
It states and determines the inner wall that ring 54.5 is fixedly mounted on valve body 51, rotating ring 54.4, which is mounted on by connection ring 54.1 with center line, determines ring 54.5
It is interior, connection ring 54.1, rotating ring 54.4 with determine the composition of ring 54.5 U-type groove in be equipped with air bag 54.2, the opening of U-type groove, which is equipped with, keeps off
Ring 54.3, one end of baffle ring 54.3 are fixedly mounted on the upper of rotating ring 54.4, side wall and determine ring 54.5 at the other end of baffle ring 54.3
Contact, baffle ring 54.3 and 51 inner wall of valve body set between mounting distance as 2~10mm, can be 6mm；Composite elastic valve seat is with valve
Bar center line be center symmetrical structure, i.e., compound seal valve seat 54 with the center line of valve rod 52 be two inverse structures, so as to valve seat
54 pairs form sealing surface with valve plate 53；The inner wall opening that rotating ring 54.4 installs at baffle ring 54.3 is set as taper or arc-shaped, bores
Shape or the length of arc-shaped shared rotating ring 54.4 are 0.1 times of 54.4 width of rotating ring, the connection ring 54.1, rotating ring 54.4 and fixed
Ring 54.5 form U-type groove be an integral structure, rotating ring 54.4 with determine the of same size of ring 54.5.The air bag 54.2 is section
For the annular air-pocket of ellipse, the air bag 54.2 is made of rubber；It is filled with clear water and compressed gas in the air bag 54.2,
Clear water accounts for the 50% of 54.2 inner volume of air bag；Clear water is loaded by water pocket, so that gas is separated with water pocket, water pocket can be for along air bag
54.2 middle line setting, avoids clear water always in the lower part of gas.
By being equipped with valve rod frame at the top of valve body 51, valve rod frame is easily installed valve rod 52, between valve rod frame and valve rod 52
Equipped with sealing device, the rotation of valve plate 53 is controlled by the rotation of valve rod 52, valve plate 53 and valve seat form sealing surface, reach
Valve seat is set as composite elastic valve seat 54 by the purpose of sealing, so that valve plate 53 is when closed, 53 extrusion cladding elastic seat of valve plate
54, and flexible composite elastic valve seat 54 is also to 53 1 extruding forces of valve plate, so that composite elastic valve seat 54 and valve
Sealing between plate 53 is more preferable, forms relatively reliable sealing, and when valve plate 53 has certain offset, composite elastic valve
Seat 54 is also capable of forming good sealing；By being provided with clear water and compressed gas in air bag, clear water accounts for the 50% of volume, so that
When extruding force of the valve plate to valve seat is excessive, when the gas in air bag can not form effective support to the rotating ring of valve seat, not by
The clear water of compression can form effective support to rotating ring, so that the reliability of valve seat is higher, so that the sealing performance of valve is more preferable.
Connection ring 4.1, rotating ring 4.4 form U-type groove with ring 4.5 is determined, and determine ring 4.5 and are fixedly mounted on inside valve body 1, so that working as
The U-type groove open end of 3 driven torus 4.4 of valve plate turns to rotating ring 4.4, and valve plate 3 squeezes rotating ring 4.4, so that rotating ring 4.4 is to U-type groove
Medial movement, valve plate 3 more squeeze rotating ring 4.4, and the sealing force between valve plate 3 and rotating ring 4.4 is stronger, so that the sealing of valve plate 3 is imitated
Fruit is more preferable, connection ring 4.1, rotating ring 4.4 with determine ring 4.5 for high resiliency, high tenacity metal material so that composite elastic valve
Seat 4 is more durable compared to rubber valve seat, and compared to metal seat valve, the torque of opening closing valve is smaller；It is equipped in U-type groove
Air bag 4.2, filled with high pressure gas in air bag 4.2, the pressure of the high pressure gas in air bag 4.2 can be according to the pressure medium in valve
It adjusting, air bag 4.2 can form rotating ring and support, so that the resilience performance of rotating ring 4.4 is more preferable, it is relatively reliable；By in U
The opening of type groove is equipped with baffle ring 4.3, and when valve plate 3 squeezes rotating ring 4.4, baffle ring 4.3 is slided in the end face for determining ring 4.5, so that
Rotating ring 4.4 can deviate, and baffle ring 4.3 can be by the dielectric impedance outside composite elastic valve seat 4, thus to the air bag in U-type groove
4.2 are protected, so that the service life is longer for air bag 4.2；And this valve is not needed 3 eccentric setting of valve plate, thus
So that the manufacture processing cost of valve is lower, structure is simpler.
The material of insulation tube 9 is compound quartz material.
The first flowmeter, second flowmeter, the first control valve and the second control valve are connect with MCU respectively, and high pressure is led
Line 7 is connected with the high-voltage pulse power source connecting with MCU；First snorkel 5, the second snorkel 6 are connected with inert gas and oxygen respectively,
Inert gas can be helium or nitrogen, and inert gas selects according to actual needs.
The pressure measured is transmitted to MCU by the first flowmeter and second flowmeter in real time, and MCU is according to preset lazy
Property gas and oxygen mixed proportion, MCU controls the aperture of the first control valve and the second control valve, so that first flowmeter and the
The flow that two flowmeters measure is the ratio value of setting, while the voltage of MCU control high-voltage pulse power source output is 8kV, frequency
For 10kHz, so that spray head generates plasma jet；When needing to sterilize, the pulsewidth of high-voltage pulse power source is set as 2 μ s, is sprayed
The internal diameter of mouth is 0.5mm, and inert gas is nitrogen, and the ratio of mixed oxygen is 0.25% in nitrogen, the ratio of mixed oxygen
Concentration forms the more efficient of plasma at 0.25%；When needing to make ablative surgery, the internal diameter of nozzle is 0.5mm, MCU
The closing of the second control valve is controlled, helium is connected in the first snorkel 5, the voltage that MCU controls high-voltage pulse power source output is 9kV,
Frequency is 10kHz, so that spray head generates plasma jet, so that the plasma bullet sprayed is longer.By adjust voltage and
The flow of first flowmeter and second flowmeter is enable to accurately control the size of gas source, and according to using difference,
It is capable of the use of saving gas.
Compound quartz material is formed by following parts by weight:
Silica flour: 70-75 parts, short carbon fiber: 7-8 parts, reinforcing agent: 1-2 parts, 1.5-2 parts of coupling agent, unsaturated-resin:
5-6 parts, aluminium oxide powder: 3-4 parts, curing agent: 0.5-0.7 parts；The length of short carbon fiber is 0.2-0.4 millimeters, short carbon fiber
The filament diameter of dimension is 6-8 microns.
Specific implementation to composite stone English below:
Example one:
Compound quartz material is formed by following parts by weight:
Silica flour: 70 parts, short carbon fiber: 7 parts, reinforcing agent: 1 part, 1.5 parts of coupling agent, unsaturated-resin: 5 parts, three oxidations
Two aluminium powders: 3 parts, curing agent: 0.5 part；The length of short carbon fiber is 0.2 millimeter, and the filament diameter of short carbon fiber is 6 microns, no
Saturated resin can be phenolic resin, and reinforcing agent is the mixture of calcium sulfate crystal whiskers and tourmaline powder, calcium sulfate crystal whiskers and tourmaline
The ratio of powder is 1:3.
The manufacturing method of compound quartz material:
According to silica flour: 70 parts, short carbon fiber: 7 parts, reinforcing agent: 1 part, 1.5 parts of coupling agent, unsaturated-resin: 5 parts, three
Al 2 O powder: 3 parts, curing agent: 0.5 part weighs each component, and silica flour, short carbon fiber and aluminium oxide powder are passed through stirring
Machine is stirred 10 minutes and is uniformly mixed；Reinforcing agent, coupling agent, unsaturated-resin, curing agent are divided in another stirrer for mixing 20
The mixture of silica flour, short carbon fiber and aluminium oxide powder is poured into reinforcing agent, coupling agent, unsaturated-resin, solidification after clock
It in the mixture of agent, stirs 30 minutes, stirs while being ultrasonically treated, obtain mixed raw material；Mold is added in mixed raw material
In, after being pressed in a vacuum, after hot setting is formed, polishing treatment.
Example two:
Compound quartz material is formed by following parts by weight:
Silica flour: 75 parts, short carbon fiber: 8 parts, reinforcing agent: 2 parts, 2 parts of coupling agent, unsaturated-resin: 6 parts, three oxidations two
Aluminium powder: 4 parts, curing agent: 0.7 part；The length of short carbon fiber is 0.2 millimeter, and the filament diameter of short carbon fiber is 6 microns, insatiable hunger
It can be phenolic resin with resin, reinforcing agent is the mixture of calcium sulfate crystal whiskers and tourmaline powder, calcium sulfate crystal whiskers and tourmaline powder
Ratio be 1:3.
The manufacturing method of compound quartz material:
According to silica flour: 75 parts, short carbon fiber: 8 parts, reinforcing agent: 2 parts, 2 parts of coupling agent, unsaturated-resin: 6 parts, three oxygen
Change two aluminium powders: 4 parts, curing agent: 0.7 part weighs each component, and silica flour, short carbon fiber and aluminium oxide powder are passed through blender
It is uniformly mixed within stirring 10 minutes；By reinforcing agent, coupling agent, unsaturated-resin, curing agent at another stirrer for mixing 20 minutes
The mixture of silica flour, short carbon fiber and aluminium oxide powder is poured into reinforcing agent, coupling agent, unsaturated-resin, curing agent afterwards
Mixture in, stir 30 minutes, stirring at the same be ultrasonically treated, obtain mixed raw material；Mixed raw material is added in mold,
After being pressed in a vacuum, after hot setting is formed, polishing treatment.
Example three:
Compound quartz material is formed by following parts by weight:
Silica flour: 72 parts, short carbon fiber: 7.5 parts, reinforcing agent: 1.5 parts, 1.7 parts of coupling agent, unsaturated-resin: 5.7 parts,
Aluminium oxide powder: 3.5 parts, curing agent: 0.6 part；The length of short carbon fiber is 0.2 millimeter, and the filament diameter of short carbon fiber is 6
Micron, unsaturated-resin can be phenolic resin, reinforcing agent be calcium sulfate crystal whiskers and tourmaline powder mixture, calcium sulfate crystal whiskers and
The ratio of tourmaline powder is 1:3.
The manufacturing method of compound quartz material:
According to silica flour: 72 parts, short carbon fiber: 7.5 parts, reinforcing agent: 1.5 parts, 1.7 parts of coupling agent, unsaturated-resin:
5.7 parts, aluminium oxide powder: 3.5 parts, curing agent: 0.6 part weighs each component, by silica flour, short carbon fiber and aluminum oxide
Powder is stirred 10 minutes by blender and is uniformly mixed；By reinforcing agent, coupling agent, unsaturated-resin, curing agent in another blender
The mixture of silica flour, short carbon fiber and aluminium oxide powder is poured into reinforcing agent, coupling agent, unsaturation after twenty minutes by middle mixing
Resin, curing agent mixture in, stir 30 minutes, stirring at the same be ultrasonically treated, obtain mixed raw material；By mixed raw material
It is added in mold, after being pressed in a vacuum, after hot setting is formed, polishing treatment.
Claims (3)
1. a kind of low-temperature plasma jet device characterized by comprising cylinder (1), the first snorkel (5), the second ventilation
Pipe (6) and high-voltage conducting wires (7), first snorkel (5), the second snorkel (6) and high-voltage conducting wires (7) are inserted into cylinder (1)
In, high-voltage conducting wires (7) are set to the center of cylinder (1), and the first snorkel (5), the second snorkel (6) are installed on the outer of cylinder (1)
Between wall and high-voltage conducting wires (7), between the first snorkel (5), the second snorkel (6) and the high-voltage conducting wires (7) in cylinder (1)
Equipped with insulating core (3)；One end of cylinder (1) is equipped with spray head (2), is equipped with conical cavity (10) in spray head (2), and conical cavity (10) is set to
With the connecting pin of cylinder (1), the center of spray head (2) is equipped with the through-hole being connected to conical cavity (10)；The end of high-voltage conducting wires (7) with
The outer cover of high-field electrode (8) connection, high-field electrode (8) is equipped with insulation tube (9), and insulation tube (9) is inserted partially into insulating core (3)
In；Gas mixer (11) are equipped in conical cavity (10), the position for the insulation tube (9) for being set to the through hole of high-field electrode (8) is set
There are demarcation plate (12)；The material of insulation tube (9) is compound quartz material；
Compound quartz material is formed by following parts by weight:
Silica flour: 70-75 parts, short carbon fiber: 7-8 parts, reinforcing agent: 1-2 parts, 1.5-2 parts of coupling agent, unsaturated-resin: 5-6
Part, aluminium oxide powder: 3-4 parts, curing agent: 0.5-0.7 parts；The length of short carbon fiber is 0.2-0.4 millimeters, short carbon fiber
Filament diameter is 6-8 microns；
The first control valve and the second control valve, the first ventilation are respectively equipped on first snorkel (5), the second snorkel (6)
Pipe (5), the second snorkel (6) are additionally provided with first flowmeter and second flowmeter respectively；
The structure of first control valve and the second control valve is identical, and the first control valve and the second control valve include valve body
(51), valve rod (52), valve plate (53) and composite elastic valve seat (54), valve body (51) top are equipped with valve rod frame, valve rod frame
It is equipped with the through-hole of coaxial inner conductor with valve body (51), valve plate (53) and composite elastic valve seat (54), valve rod are installed in valve body (51)
(52) it passes through through-hole and valve plate (53) is fixedly mounted, composite elastic valve seat (54) is mounted between valve body (51) and valve plate (53)；
Composite elastic valve seat (54) includes: connection ring (54.1), air bag (54.2), baffle ring (54.3), rotating ring (54.4) Ji Dinghuan
(54.5), the inner wall determined ring (54.5) and be fixedly mounted on valve body (51), rotating ring (54.4) is by connection ring (54.1) in
Heart line, which is mounted on, to be determined in ring (54.5), connection ring (54.1), rotating ring (54.4) with determine ring (54.5) composition U-type groove in equipped with gas
The opening of capsule (54.2), U-type groove is equipped with baffle ring (54.3), and one end of baffle ring (54.3) is fixedly mounted on rotating ring (54.4)
On, side wall is contacted with ring (54.5) is determined at the other end of baffle ring (54.3), between baffle ring (54.3) and valve body (51) inner wall are set
Mounting distance is 2~10mm；Composite elastic valve seat is using valve rod center line as center symmetrical structure.
2. low-temperature plasma jet device according to claim 1, which is characterized in that the first flowmeter, second
Flowmeter, the first control valve and the second control valve are connect with MCU respectively, and high-voltage conducting wires (7) are connected with the high-voltage pulse connecting with MCU
Power supply；First snorkel (5), the second snorkel (6) are connected with inert gas and oxygen respectively, and inert gas can be helium or nitrogen
Gas.
3. low-temperature plasma jet device according to claim 2, which is characterized in that the first flowmeter and second
The pressure measured is transmitted to MCU, mixed proportion of the MCU according to preset inert gas and oxygen, MCU control by flowmeter in real time
The aperture of the first control valve and the second control valve is made, so that the flow that first flowmeter and second flowmeter measure is the ratio of setting
Example value, while the voltage of MCU control high-voltage pulse power source output is 8kV, frequency 10kHz, so that spray head generates plasma
Jet stream；When needing to sterilize, the pulsewidth of high-voltage pulse power source is set as 2 μ s, the internal diameter of nozzle is 0.5mm, and inert gas is nitrogen
Gas, the ratio of mixed oxygen is 0.25% in nitrogen；When needing to make ablative surgery, the internal diameter of nozzle is 0.5mm, MCU control
Second control valve is closed, and helium is connected in the first snorkel (5), the voltage that MCU controls high-voltage pulse power source output is 9kV, frequency
Rate is 10kHz, so that spray head generates plasma jet.
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| AUPS245402A0 (en) * | 2002-05-21 | 2002-06-13 | Varian Australia Pty Ltd | Plasma torch for microwave induced plasmas |
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Effective date of registration: 20191223 Address after: 201100 room q158, building 22, No. 1-30, Lane 88, Minbei Road, Minhang District, Shanghai Patentee after: Shanghai Erdi Instrument Technology Co., Ltd. Address before: 610041, No. 1, 1, 1-1, 180 Ju Yue Road, Sichuan, Chengdu, Wuhou District Patentee before: Chengdu Addison Biotechnology Co. Ltd. |