CN205622963U - A closed bomb vessel for plasma diagnostic - Google Patents
A closed bomb vessel for plasma diagnostic Download PDFInfo
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- CN205622963U CN205622963U CN201620319774.5U CN201620319774U CN205622963U CN 205622963 U CN205622963 U CN 205622963U CN 201620319774 U CN201620319774 U CN 201620319774U CN 205622963 U CN205622963 U CN 205622963U
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- plasma
- closed bomb
- bomb vessel
- combustor
- sealing device
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Abstract
The utility model discloses a closed bomb vessel for plasma diagnostic, include: the combustion chamber, its material is the gun -steel, sealing device, its quantity is two, sets up respectively in the combustion chamber both sides, and plasma gas generating device, it sets up in combustion chamber one end to be located and held inside the sealing device, the pressure relief device, it sets up inside the sealing device of the combustion chamber other end for draw forth high -pressure gas in the closed bomb vessel, the optics window, it sets up at the combustion chamber top, is used for observing plasma distribution situation in the combustion chamber, the closed bomb vessel can be ignited the gunpowder in the highly compressed airtight environment of high temperature, collect the plasma that the explosion back produced, carries out non -contact through spectral measurement system through the optics window and measures, has solved among the prior art gunpowder and ignites the problem that light acquisition is difficult to thermal ionization plasma in airtight explosion chamber.
Description
Technical field
The present invention relates to plasma diagnostics investigative technique, be specifically related to a kind of for wait from
The closed bomb vessel of daughter diagnosis and density control method thereof.
Background technology
The diagnosis of plasma is actually two steps: examines and breaks.Examine and more pay attention to practice, and break
Then bias toward analysis.So, plasma diagnostics uses the detection of certain physical method to be then passed through point exactly
Analysis obtains some physical parameter of plasma.Popular says, plasma diagnostics makes plasma exactly
From a process of " invisible " to " ".
The kind number of plasma is various, and the method diagnosing different types of plasma is also the most not
With.In general, plasma diagnostic method has contact diagnosis and two kinds of methods of contactless diagnosis,
This is based on the difference of diagnostic mode and distinguishes.If according to the difference of diagnosis object, plasma is examined
Disconnected method can be divided into again low temperature plasma diagnostics and high-temperature plasma diagnosis.The side of two kinds of diagnostic classifications
Method intersects, and the most strictly distinguishes.Different diagnostic methods have different pluses and minuses, and contact diagnoses
Method is of a relatively high for the spatial resolution of plasma density, is generally used for low temperature plasma diagnostics；
And contactless diagnosis is owing to its diagnosis principle is substantially without the purity of interference plasma, it is usually used in high temperature
Plasma diagnostics.Langmuir probe method is a kind of contact method of diagnosis, is also the most commonly used one side
Method.Another kind of method is impedance measurement, and the plasma being typically only used for measuring radio-frequency discharge generation is close
Degree.
Contactless diagnostic method typically has: microwave interference method, laser interferance method and spectral diagnostics etc..
Wave interference method of diagnosis is generally used for tokamak device and measures plasma density, owing to being non-cpntact measurement
So the parameter of plasma will not be changed.But due to the restriction of space layout, microwave interference method is installed
Passage be limited, which limits measure density spatial distribution；What laser interferometer needed swashs
Optical transmitting set, system structure is complicated, is generally used for nuclear fusion plasma diagnostics.And, diagnostic system
There is stronger signal disturbing, require further improvement system, reduce system noise, filter out signal disturbance,
Improve the resolution of laser interference diagnostic system.Spectroscopy measurements plasma density has many good qualities, and surveys
Amount system structure is simple, easy to use, measures scope wide, it is often more important that owing to this is contactless survey
Amount, will not produce interference by plasma.It is widely used as a kind of Plasma Diagnostics
In the various parameters measuring plasma.
Gas ionization produces the kind of plasma to be had a lot, such as DC discharge plasma, capacitive coupling
Close plasma, inductively coupled plasma, microwave discharge plasma and thermal ionization plasma etc..
Study more for discharge plasma and coupled plasma, and for the research of thermal ionization plasma
Considerably less, only for the discussion etc. of thermal ionization probability；Produce plasma for grinding with powder gas simultaneously
Studying carefully the thermal ionization plasma research that object carries out the most considerably less, during powder burning, combustion gas can reach
3000K 4000K, pressure can reach 400MPa, and the environment of High Temperature High Pressure can make gas generation thermoelectricity
From, the emission spectrum generating plasma is measured with spectrometry, the electron density of plasma,
The relevant parameters such as electron temperature are also required to study widely.
Summary of the invention
The present invention has designed and developed a kind of closed bomb vessel for plasma diagnostics, it is possible to existed by gunpowder
The closed environment of High Temperature High Pressure is ignited, the plasma produced after collecting blast.
A further object of the invention is to be provided with optical window at closed bomb vessel top, uses sealing gasket
Sheet compresses, and both ensure that the sealing structure of closed bomb vessel, and had opened an observation window for measurement again.
Another object of the present invention also uses spectral measurement system to carry out contactless survey by optical window
Amount, solves gunpowder in prior art and adopts the light of thermal ionization plasma in the ignition of confined explosion indoor
The problem of collection difficulty.
The technical scheme that the present invention provides is:
A kind of closed bomb vessel for plasma diagnostics, including:
Combustor, its material is gun-steel；
Sealing device, its quantity is two, is separately positioned on described combustor both sides；And
Plasma gas generator, it is arranged on described combustor one end, and is positioned at described in this end close
Inside seal apparatus；
Pressure relief device, it is arranged on inside the described sealing device of the combustor other end, for by airtight quick-fried
Send out device inner high voltage gas to draw；
Optical window, it is arranged on top of combustion chamber, is used for observing plasma distribution in described combustor
Situation.
Preferably, described plasma gas generator, including:
Cylindrical chamber, its material is insulant, and described cylindrical chamber top is provided with nozzle, plasma
Body is sprayed by described nozzle；
Columnar electrode, it is arranged on position, described cylindrical chamber axis；
Sub-electrode, it is arranged on inside described cylindrical chamber, and it is different to put on described columnar electrode
Electromotive force；
Igniting silk, it connects described columnar electrode；
Capillary tube, it is set in described ignition silk centre position, inwall coating dielectric film；
The pulse power, it connects described columnar electrode and described sub-electrode.
Preferably, described pressure relief device, including:
Bleeder screw, it is arranged inside the through hole of described sealing device；
Sheave, it connects described bleeder screw, relative with described sealing device for regulating bleeder screw
Position, to realize the pressure regulation of closed bomb vessel.
Preferably, described optical window material is sapphire crystal, and described optical window is in described burning
Installation place, room is compressed by gasket seal.
Preferably, described gasket seal uses self-tightening metal O, and material is Titanium, surface
It is coated with metallic nickel, to make up annular groove sealing surfaces injustice or tiny flaw.
Preferably, described self-tightening metal O is hollow type endless tube, and is provided with at inner surface
Multiple small sircle holes, its hollow endless tube inside and described combustion chamber.
Preferably, described sealing device material is red copper.
Preferably, also include spectral measurement system, including:
Radiation probe, it includes cosine appliance and optical fiber, is arranged on optical window position, is used for burning
The spectrum sampling of indoor generation plasma；
Spectrogrph, it is grating spectrograph, for light splitting and radiation probe is collected spectrum sampling number
According to measuring.
The present invention is compared with prior art had the advantage that
1, a kind of closed bomb vessel for plasma diagnostics that the present invention provides, it is possible to by gunpowder at height
The closed environment of temperature high pressure is ignited, the plasma produced after collecting blast, and in airtight outburst ceiling
Portion is provided with optical window, can be acquired thermal ionization plasma spectrometry by optical window, adopt
It is acquired with contactless plasma spectrum, noiseless to the test of thermal ionization plasma.
2, a kind of closed bomb vessel for plasma diagnostics that the present invention provides, top is provided with optics
Form, uses gasket seal to compress, both ensure that the sealing structure of closed bomb vessel, and opened up for measurement again
One observation window.
3, a kind of closed bomb vessel for plasma diagnostics that the present invention provides, uses spectral measurement system
System carries out non-contact measurement by optical window, solves gunpowder in prior art indoor at confined explosion
Ignite the problem that the light to thermal ionization plasma gathers difficulty
Accompanying drawing explanation
Fig. 1 is the structural representation of the closed bomb vessel for plasma diagnostics of the present invention.
Fig. 2 is the structural representation of plasma gas generator of the present invention.
Fig. 3 is optical window structural representation of the present invention.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art's reference
Description word can be implemented according to this.
As it is shown in figure 1, the closed bomb vessel for plasma diagnostics that the present invention provides, including: combustion
Burn room 100, sealing device 200, plasma gas generator 300, pressure relief device 400 and optics to regard
Window 500.
Wherein, combustor 100, owing to producing the combustion gas of High Temperature High Pressure, so selecting big gun during powder burning
Steel is as the material of combustor 100.
Sealing device 200, its quantity is two, including the first sealing device and the second sealing device, point
Not being arranged on combustor 100 both sides, preferred as one, sealing device 200 material is red copper；
As in figure 2 it is shown, plasma gas generator 300, it is arranged on combustor 100 one end,
Inside one sealing device, including: cylindrical chamber 310, its material is insulant, cylindrical chamber 310
Top is provided with nozzle, and plasma is sprayed by nozzle；
Columnar electrode 320, it is arranged on position, cylindrical chamber 310 axis；
Sub-electrode 330, it is internal that it is arranged on cylindrical chamber 310, and can put on columnar electrode 320
Different electromotive forces；
Igniting silk 340, it connects columnar electrode 320；
Capillary tube 350, it is set in ignition silk 340 centre position, inwall coating dielectric film；
The pulse power 360, it is high power pulsed source, connects columnar electrode 320 and sub-electrode 330.
Plasma producing apparatus 300 produces plasma, arteries and veins by the arc discharge of the pulse power 360
Rushing power supply 360 first to discharge the ignition silk 340 connecting capillary tube 350 two ends, tinsel is heated and fast
There is discharge-induced explosion in speed, forms metallic plasma.After discharge-induced explosion, metallic plasma is to capillary tube 350
Inwall emittance, makes wall surface material melt, and forms plasma and maintains electric discharge, and plasma is by nozzle
Start outwards injection, thus realize igniting.
Pressure relief device 400, it is arranged on combustor 100 other end, inside the second sealing device, is used for
Closed bomb vessel inner high voltage gas is drawn；
Including: bleeder screw, it is arranged inside the through hole of the second sealing device；
Sheave, it connects bleeder screw, for regulating the relative position of bleeder screw and the second sealing device,
To realize the pressure regulation of closed bomb vessel.
Optical window 500, it is arranged on combustor 100 top, wait in being used for observing combustor 100 from
Daughter distribution situation；
As it is shown on figure 3, optical window 500 material is artificial sapphire crystal, to be guaranteed in excessive temperature bar
The transmittance of light under part, the A that the mechanical performance that in the present embodiment, employing kyropoulos (KY method) crystallizes is optimum
Crystal orientation sapphire, and optical window 500 in combustor 100 installation place by gasket seal 510 and metal
Titanium pad 520 compresses.
Gasket seal 510 uses self-tightening metal O, and material is Titanium, and sets at inner surface
Being equipped with multiple small sircle hole, its hollow endless tube is internal to be connected with described combustor 100, its sealing function
It is based in compressed metal endless tube in advance to the groove of certain depth, metal endless tube generation elastic deformation, its
Counteracting force produces higher linear contact lay load to sealing surface, thus sets up initial sealing.Operationally,
Air-flow enters in endless tube, and the system pressure in endless tube increases, and makes the contact pressure of sealing surface increase, thus
Reach self-tightening effect.At the plated surface last layer soft metal nickel of self-tightening metal O, with close to annular groove
Envelope air spots or tiny flaw provide some to compensate.
In another embodiment, step one use spectral measurement system carry out spectral measurement, including:
Radiation probe, it includes cosine appliance and optical fiber, is arranged on optical window 500 position, is used for
The spectrum sampling of plasma is produced in combustor；
Spectrogrph, it is grating spectrograph, for light splitting and radiation probe is collected spectrum sampling number
According to measuring.
Although embodiment of the present invention are disclosed as above, but it is not restricted to description and embodiment party
Listed utilization in formula, it can be applied to various applicable the field of the invention completely, for being familiar with ability
For the personnel in territory, be easily achieved other amendment, therefore without departing substantially from claim and etc. homotype
Enclosing under limited general concept, the present invention is not limited to specific details and shown here as the figure with description
Example.
Claims (8)
1. the closed bomb vessel for plasma diagnostics, it is characterised in that including:
Combustor, its material is gun-steel；
Sealing device, its quantity is two, is separately positioned on described combustor both sides；And
Plasma gas generator, it is arranged on described combustor one end, and is positioned at described in this end close
Inside seal apparatus；
Pressure relief device, it is arranged on inside the described sealing device of the combustor other end, for by airtight quick-fried
Send out device inner high voltage gas to draw；
Optical window, it is arranged on top of combustion chamber, is used for observing plasma distribution in described combustor
Situation.
Closed bomb vessel for plasma diagnostics the most according to claim 1, it is characterised in that
Described plasma gas generator, including:
Cylindrical chamber, its material is insulant, and described cylindrical chamber top is provided with nozzle, plasma
Body is sprayed by described nozzle；
Columnar electrode, it is arranged on position, described cylindrical chamber axis；
Sub-electrode, it is arranged on inside described cylindrical chamber, and it is different to put on described columnar electrode
Electromotive force；
Igniting silk, it connects described columnar electrode；
Capillary tube, it is set in described ignition silk centre position, inwall coating dielectric film；
The pulse power, it connects described columnar electrode and described sub-electrode.
Closed bomb vessel for plasma diagnostics the most according to claim 1 and 2, its feature
It is, described pressure relief device, including:
Bleeder screw, it is arranged inside the through hole of described sealing device；
Sheave, it connects described bleeder screw, relative with described sealing device for regulating bleeder screw
Position, to realize the pressure regulation of closed bomb vessel.
Closed bomb vessel for plasma diagnostics the most according to claim 1, it is characterised in that
Described optical window material is sapphire crystal, and described optical window passes through close in described combustor installation place
Gasket compresses.
Closed bomb vessel for plasma diagnostics the most according to claim 4, it is characterised in that
Described gasket seal uses self-tightening metal O, and material is Titanium, and surface is coated with gold
Belong to nickel, to make up annular groove sealing surfaces injustice or tiny flaw.
Closed bomb vessel for plasma diagnostics the most according to claim 5, it is characterised in that
Described self-tightening metal O is hollow type endless tube, and inner surface is provided with multiple small sircle hole, its
Hollow endless tube inside and described combustion chamber.
Closed bomb vessel for plasma diagnostics the most according to claim 1, it is characterised in that
Described sealing device material is red copper.
Closed bomb vessel for plasma diagnostics the most according to claim 1, it is characterised in that
Also include spectral measurement system, including:
Radiation probe, it includes cosine appliance and optical fiber, is arranged on described optical window position, is used for
The spectrum sampling of plasma is produced in combustor；
Spectrogrph, it is grating spectrograph, for light splitting and radiation probe is collected spectrum sampling number
According to measuring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620319774.5U CN205622963U (en) | 2016-04-15 | 2016-04-15 | A closed bomb vessel for plasma diagnostic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620319774.5U CN205622963U (en) | 2016-04-15 | 2016-04-15 | A closed bomb vessel for plasma diagnostic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205622963U true CN205622963U (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620319774.5U Expired - Fee Related CN205622963U (en) | 2016-04-15 | 2016-04-15 | A closed bomb vessel for plasma diagnostic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744712A (en) * | 2016-04-15 | 2016-07-06 | 中国人民解放军装甲兵工程学院 | Closed bomb vessel for plasma diagnosis and density control method thereof |
-
2016
- 2016-04-15 CN CN201620319774.5U patent/CN205622963U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744712A (en) * | 2016-04-15 | 2016-07-06 | 中国人民解放军装甲兵工程学院 | Closed bomb vessel for plasma diagnosis and density control method thereof |
| CN105744712B (en) * | 2016-04-15 | 2019-04-09 | 中国人民解放军装甲兵工程学院 | A kind of closed bomb vessel and its density control method for plasma diagnostics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20170415 |