CN209015530U - A kind of space magnetic field joins phenomena simulation device again - Google Patents
A kind of space magnetic field joins phenomena simulation device again Download PDFInfo
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- CN209015530U CN209015530U CN201821331783.1U CN201821331783U CN209015530U CN 209015530 U CN209015530 U CN 209015530U CN 201821331783 U CN201821331783 U CN 201821331783U CN 209015530 U CN209015530 U CN 209015530U
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Abstract
The utility model discloses a kind of space magnetic fields to join phenomena simulation device again, is made of vacuum chamber, power-supply system, plasma stream emitter, field supply plate, diagnostic system.Vacuum chamber is for providing space magnetic field weight gang mould quasi- required vacuum environment, power-supply system is made of plasma source, heating source, magnetic confinement power supply, the electric current plate pulse power, plasma emission device uses heater-type oxide-coated cathode plasma source, stimulates cathode excitation to generate plasma stream by heating plasma source.Field supply plate is two pieces of parallel electric current plates for constructing magnetic field bit-type space magnetic field joins phenomenon again needed for, diagnostic system uses built-in probe to be controlled for detecting the generation of Magnetic Reconnection phenomenon, diagnostic system in vacuum chamber built-in space different location by electronic system.Join phenomena simulation again by the space magnetic field that the device can carry out large scale, preferably explores space magnetic field from the angle of experiment and join genesis mechanism again and exploratory carry out correlation practical application.
Description
Technical field
The utility model relates to the technical fields of Magnetic Reconnection simulation, and in particular to a kind of space magnetic field joins phenomena simulation again
Device.
Background technique
Magnetic Reconnection phenomenon widely exists in physical phenomenon common in nature, such as solar flare, coronal mass ejection
During the dependent interaction of projectile, solar wind and earth magnetosphere etc..In Magnetic Reconnection generating process, finite conductivity etc.
In gas ions stream in locating magnetic field bit-type, live near the neutral conductor in the neutral point that magnetic field strength is zero, the magnetic in current sheet
The line of force is automatic or passively forces disconnection and reconnects.In the process, with magnetic energy discharge and be converted into etc. suddenly from
The kinetic energy and thermal energy of daughter cause the acceleration and heating of charged particle.Since the means that space magnetic field joins observation can not fill again
Point understand Magnetic Reconnection process mechanism, Magnetic Reconnection theory proposition after, by experiment simplation verification Magnetic Reconnection theory at
In order to which scientists verify the optimal selection of the process, and the country joins the big portion of experimental study of phenomenon for space magnetic field again at present
Divide the model research for being all based on small-sized shrinkage scale degree, higher Magnetic Reconnection phenomenon generation space can be provided by lacking one kind,
The experimental provision of bigger acute impact, therefore the utility model proposes the simulators that a kind of space magnetic field joins phenomenon again to be used for
Carry out the experiment of large scale simplation verification.
Utility model content
The purpose of this utility model is that: join the space office of the experimental study of phenomenon again to space magnetic field for the present country
Sex-limited and experiment large scale space magnetic field joins the limitation of phenomena simulation again, provides the mould that a kind of space magnetic field joins phenomenon again
Quasi- device, is tested for simplation verification.
The technical solution adopted in the utility model are as follows: a kind of space magnetic field joins phenomena simulation device again, by vacuum chamber, power supply
System, plasma stream emitter, field supply plate, diagnostic system composition, wherein vacuum chamber is for providing space magnetic field weight
Vacuum environment required for gang mould is quasi-；Power-supply system is by plasma source, heating source, magnetic confinement power supply, the electric current plate pulse power
Composition, plasma source are produced for generating required plasma source in simulation process, heating source for heating plasma
Source required for raw, magnetic confinement power supply are used to provide the axial magnetic field space of constraint plasma stream, and the electric current plate pulse power is used
In provide pulse current on co-current plate to construct magnetic field bit-type required for Magnetic Reconnection；Plasma emission device is adopted
With heater-type oxide-coated cathode plasma source, cathode excitation is stimulated to generate plasma stream by heating plasma source；Magnetic
Field current plate is two pieces of parallel electric current plates for constructing magnetic field bit-type space magnetic field joins phenomenon again needed for；Diagnostic system uses
Built-in probe is used to detect the generation of Magnetic Reconnection phenomenon in vacuum chamber built-in space different location, and diagnostic system is by Department of Electronics
System control, can be in approximately the same plane by the mobile measurement for carrying out different location of coordinate.
Wherein, vacuum chamber both ends be designed as plasma source region for generate the required plasma stream of experiment, wherein one end
Mechanical pump is installed simultaneously and turbomolecular pump is vacuumized for cabin, vacuum chamber side arrangement there are multiple windows, for space
The generating process of Magnetic Reconnection is diagnosed.
Wherein, field supply plate is constituted using full copper, is designed by integrated molding to reduce the contact resistance of electric current plate.
The utility model compared with prior art the advantages of be:
(1) the utility model preferably can join mechanism, the mistake that phenomenon occurs from laboratory angle simulation space magnetic field again
Journey, decaying can preferably provide the simulated environment of large scale compared to other devices.
(2) the utility model can more preferably provide diagnosis and the observing environment of phenomenon generation, due to lab space scale
The phenomenon that advantage, simulation space magnetic field joins again, becomes apparent, while the window that device itself provides can be examined preferably
Disconnected observation angle.
(3) the utility model is by efficient combination to each component of device and optimization, including such as ion source, integrated molding
Electric current plate etc. upgrading, better space magnetic field can be provided and join phenomena simulation again.
Detailed description of the invention
Fig. 1 is that a kind of space magnetic field of the utility model joins phenomena simulation schematic device again；
Fig. 2 is that space magnetic field joins the vacuum chamber of phenomena simulation device and the flange of connecting movable sleeve and fluorine rubber ring again；
Fig. 3 is heater-type oxide-coated cathode plasma source；
Fig. 4 is adjustable magnetic confinement coil.
In figure, 1 is field supply plate, and 2 be magnetic confinement coil, and 3 be diagnostic window, and 4 be vacuum chamber, and 5 be plasma source,
6 be vacuum pumping hole, and 7 be sealing ring, and 8 be anode, and 9 be cathode, and 10 be heating source, and 11 be heat reflection plate.
Specific embodiment
With reference to the accompanying drawing and specific embodiment further illustrates the utility model.
As shown in Figure 1, a kind of space magnetic field of the utility model join again phenomena simulation device by vacuum chamber 4, power-supply system, etc.
Gas ions stream emitter, field supply plate 1, diagnostic system composition.
Vacuum chamber 4 for providing space magnetic field weight gang mould quasi- required vacuum environment, take out equipped with vacuum by 4 both ends of vacuum chamber
Stomata 6,4 both ends of vacuum chamber be designed as plasma source region for generate the required plasma stream of experiment, wherein one end is pacified simultaneously
Dress mechanical pump and turbomolecular pump are vacuumized for cabin, and 4 side arrangement of vacuum chamber has multiple diagnostic windows 3, for space
The generating process of Magnetic Reconnection is diagnosed.
Power-supply system is made of plasma source 5, heating source 10, magnetic confinement power supply, the electric current plate pulse power, plasma
Source 5 is for generating required plasma source in simulation process, required for heating source 10 is generated for heating plasma
Source, magnetic confinement power supply are used to provide the axial magnetic field space of constraint plasma stream, and the electric current plate pulse power is for providing pulse
Electric current on co-current plate to construct magnetic field bit-type required for Magnetic Reconnection.
Plasma emission device uses heater-type oxide-coated cathode plasma source, is stimulated by heating plasma source
Cathode excitation generates plasma stream.
Field supply plate 1 is two pieces of parallel electric current plates for constructing magnetic field bit-type space magnetic field joins phenomenon again needed for,
Electric current plate is constituted using full copper, is designed by integrated molding to reduce the contact resistance of electric current plate,
Diagnostic system uses built-in probe to be used in vacuum chamber built-in space different location to detect Magnetic Reconnection phenomenon
Occur, diagnostic system is controlled by electronic system, can be in approximately the same plane by the mobile measurement for carrying out different location of coordinate.
Vacuum chamber 4 is made of two stainless steel drums, passes through the flange and fluorine rubber ring composition of a loop between drum
Sealing ring 7 realize be tightly connected.Vacuum chamber 4 is fixed on magnetic confinement coil inside by horizontal rail and bracket, then installs
On the pedestal made of epoxy resin.Whole device itself is all fixed on the platform made of angle bar welding, platform
There are multiple metal wheels in lower section, and metal wheel is placed on the track of ground configuration, not only ensure that the horizontality of device in this way, but also
Convenient for the mobile detachability of device.
Vacuum system is made of extract system, measuring system, leak detection and analysis system.Extract system by composite molecular pump,
Rotary-vane vaccum pump and condenser pump composition.
Join the beginning of phenomena simulation experiment again in space magnetic field, vacuum chamber rush at vacuum by evacuated air hole
Reason, the length of vacuum chamber are 10 meters, and radius is 3 meters.
Space magnetic field joins the heater-type oxide yin that phenomena simulation device is used by heating plasma emitter again
For pole plasma source to excite the generation of plasma stream, heater-type oxide-coated cathode plasma source uses cake type knot
Structure is mounted on one end of vacuum chamber, so that the cathode of plasma source is met operating temperature by the high-temperature heating system of auxiliary.Such as figure
Shown in 3, heater-type oxide-coated cathode plasma source includes anode 8, cathode 9, heating source 10 and heat reflection plate 11.
By the unified axial centre position parallel arranged in multiple groups magnetic confinement coil edge in vacuum chamber around vacuum chamber 4
Near center location generate the magnetic field section of one piece of approaches uniformity, this section is used in space magnetic field join the simulation of phenomenon again
Plasma stream is constrained in journey, thus guarantee that plasma stream is near axial position during the experiment, with
Convenient for the magnetic field configuration control of which of building.
Magnetic confinement coil 2 is formed using the series connection coiling of more cake circular coils, and the radius of every cake coil is 2 meters, and coil is by aluminium
Prepared material constitutes the weight that can mitigate coil to a certain extent, wherein each cake coil is arranged by multiturn coil, and it is every
Gap among circle coil is filled by resin material, thereby may be ensured that the fixation of coil shape.Among every two cakes coil
Electric current connecting line by the wrapped with insulation of magnetic screen, thereby may be ensured that electric current connecting line will not be to the magnetic field in vacuum chamber
It impacts.
Magnetic confinement coil power uses DC Steady electric current, during experiment, by guaranteeing that the supply of electric current makes magnetic
The constraint for the magnetic field plasma stream that constraint coil generates always exists.
The electric current plate pulse power connect electric current plate positive and negative end, for the pulse power use frequency and current amplitude with
And the pulsed discharge power supply that rise and fall time section is controllable, the circuit the RLC structure that pulsed discharge power supply is made of capacitor and inductor resistance
At.During experiment, the pulse power persistently applies pulse current to electric current plate according to certain frequency to constitute space magnetic
Connection phenomena simulation tests required magnetic field bit-type again for field.
Co-current plate in vacuum chamber 4 is made of the copper product of integrated molding, and shape is 2.5 meters wide, thickness 0.1
The copper sheet of rice.Since the two-stage of copper sheet needs to connect the current feed outside vacuum chamber, the structure plasma stream at copper sheet both ends
Control have a significant impact, therefore copper sheet using integrated molding as a result, it is possible to prevente effectively from electric current board ends are made because of welding
At influence of the contact resistance to magnetic field.
There are many places windows in vacuum chamber 4 for connecting multiclass detection device, including diagnostic device, vacuum measurement equipment,
Electrical connection equipment, air inlet gas-discharging equipment have been used in different position detection test effects.
The diagnostic system of electronic system control is equipped in vacuum chamber 4 simultaneously.Diagnostic system is arranged in by many places diagnostic probe
Same plane changes according to the frequency of experiment, and after each frequency, diagnostic probe is carried out according to the position that next frame is set
It is mobile, to realize to multipoint information monitoring.
Claims (3)
1. a kind of space magnetic field joins phenomena simulation device again, it is characterised in that: sent out by vacuum chamber, power-supply system, plasma stream
Injection device, field supply plate, diagnostic system composition, wherein vacuum chamber is quasi- required true for providing space magnetic field weight gang mould
Altitude；Power-supply system is made of plasma source, heating source, magnetic confinement power supply, the electric current plate pulse power, and plasma source is used
In generating required plasma source in simulation process, source required for heating source is generated for heating plasma, magnetic is about
Beam power supply is used to provide the axial magnetic field space of constraint plasma stream, and the electric current plate pulse power is for providing pulse current in flat
To construct magnetic field bit-type required for Magnetic Reconnection on row electric current plate；Plasma emission device uses heater-type oxide-coated cathode
Plasma source stimulates cathode excitation to generate plasma stream by heating plasma source；Field supply plate is two pieces parallel
Electric current plate for constructing magnetic field bit-type space magnetic field joins phenomenon again needed for；Diagnostic system is used for using built-in probe in vacuum
To detect the generation of Magnetic Reconnection phenomenon, diagnostic system is controlled cabin built-in space different location by electronic system, can be same
Plane is by the mobile measurement for carrying out different location of coordinate.
2. a kind of space magnetic field according to claim 1 joins phenomena simulation device again, it is characterised in that: vacuum chamber both ends are set
Be calculated as plasma source region for generate test needed for plasma stream, wherein one end while mechanical pump and turbomolecular pump being installed
It is vacuumized for cabin, vacuum chamber side arrangement has multiple windows, for diagnosing to the generating process that space magnetic field joins again.
3. a kind of space magnetic field according to claim 1 joins phenomena simulation device again, it is characterised in that: field supply plate is adopted
It is constituted, is designed by integrated molding to reduce the contact resistance of electric current plate with full copper.
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| CN201821331783.1U CN209015530U (en) | 2018-08-17 | 2018-08-17 | A kind of space magnetic field joins phenomena simulation device again |
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| CN201821331783.1U CN209015530U (en) | 2018-08-17 | 2018-08-17 | A kind of space magnetic field joins phenomena simulation device again |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108986611A (en) * | 2018-08-17 | 2018-12-11 | 中国科学技术大学 | A kind of space magnetic field joins phenomena simulation device again |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108986611A (en) * | 2018-08-17 | 2018-12-11 | 中国科学技术大学 | A kind of space magnetic field joins phenomena simulation device again |
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