CN105587912B - Plasma disruption protects special double eddy current coil fast filling valves - Google Patents
Plasma disruption protects special double eddy current coil fast filling valves Download PDFInfo
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- CN105587912B CN105587912B CN201410557637.0A CN201410557637A CN105587912B CN 105587912 B CN105587912 B CN 105587912B CN 201410557637 A CN201410557637 A CN 201410557637A CN 105587912 B CN105587912 B CN 105587912B
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Abstract
Special double eddy current coil fast filling valves are protected the invention belongs to a kind of Plasma disruption.It includes valve body, the both ends of valve body are respectively equipped with rear bonnet and preceding bonnet, the inner space of valve body forms vacuum cavity, flat board spiral winding is fixed among liner, liner is fixed with vacuum cavity, valve element is provided with liner, valve rod passes through flat board spiral winding, liner and valve element, one end of valve rod is connected with cone-shaped seal structure, the outside of cone-shaped seal structure is rear bonnet, bonnet links together with valve body afterwards, gas outlet is provided among bonnet afterwards, adjustable spring pretensioner systems are provided with the outside of the other end of valve rod, preceding bonnet is connected with valve body, the centre of preceding bonnet is provided with sleeve pipe, the termination of sleeve pipe is provided with end cap, valve rod and adjustable spring pretensioner systems are inserted into sleeve pipe.Advantage is that it is driven by double-spiral coil, additional spring pre-tightening system, and uses special sealing structure, response time of the valve can reach 0.3ms and can in tokamak strong magnetic field circumstance normal work.
Description
Technical field
The invention belongs to a kind of vacuum technique, hyperbar technology, High-Voltage Technology, and in particular to a kind of Plasma disruption
Protect special double eddy current coil fast filling valves.
Background technology
In Tokamak discharge experiment, due to plasma control, hydromagnetic instability, impurity, high energy escape grain
The reasons such as son so that the rupture of plasma is difficult to avoid that.Particularly realizing the main of Tokamak Fusion Reactor steady-state operation
Research contents --- in the electric discharge for maintaining stable state high parameter plasma, Plasma disruption electric discharge can cause serious destruction to be made
With, such as big heat load of the first wall, strong mechanical stress, big escape electric current etc., or even to considering device target plate, the first wall components partially
Even device causes major injury.Although the operational limit of the different parameters of existing Tokamak discharge has had deep grind
Study carefully, and tokamak can be controlled to avoid rupture in " safe operation " region, but always there are some ruptures to be difficult to keep away
Exempt from, therefore, for rupture harm to caused by big device is avoided or reduced under the conditions of high parameter, carry out Plasma disruption and alleviate
Research be necessary and be critically important, and when one of emphasis of forestock Karma card plasma physics research.
Experimental studies have found that before rupture occurs if the height that rapidly can necessarily can be measured to the injection of plasma inside
Inert gas is pressed, then the harmfulness of Plasma disruption can be reduced to minimum degree to play the effect of protection device safety
Fruit.
Due to the emergentness that Plasma disruption occurs, therefore, quick foreign gas injection is realized, it is necessary to have quick
The charge valve of response, at the same the charge valve can also will in tokamak strong magnetic field circumstance normal work, but also to have several
The ability of injection atm number in the time of individual millisecond.
The content of the invention
Special double eddy current coil fast filling valves are protected it is an object of the invention to provide a kind of Plasma disruption, it can
To realize quick foreign gas injection.
The present invention is achieved in that a kind of Plasma disruption protects special double eddy current coil fast filling valves, it
Including valve body, the both ends of valve body are respectively equipped with rear bonnet and preceding bonnet, and the inner space of valve body forms vacuum cavity, flat board spiral
Coil is fixed among liner, and liner is fixed with vacuum cavity, is provided with valve element in liner, and valve rod passes through flat board spiral winding, interior
Lining and valve element, one end of valve rod are connected with cone-shaped seal structure, and the outside of cone-shaped seal structure is rear bonnet, rear bonnet and valve body
Link together, be provided with gas outlet among rear bonnet, be provided with adjustable spring pretensioner systems on the outside of the other end of valve rod, preceding bonnet and
Valve body connects, and the centre of preceding bonnet is provided with sleeve pipe, and the termination of sleeve pipe is provided with end cap, and valve rod and adjustable spring pretensioner systems are inserted into
In sleeve pipe.
The bottom of valve body is provided with high-voltage isulation electrode flange, and air inlet is connected with high-voltage isulation electrode flange.
Described liner is the hollow structure with pilot hole, and flat board spiral winding is fixed therein by fixing nut
Portion, while the structure is also the guiding and position-limit mechanism of valve element, valve element can only move reciprocatingly along spacing hole, have outside liner
Fixing screwed hole, liner and described vacuum cavity can be fixed with screw.
Described flat board spiral winding, it is to be formed with the rich system of high pressure enamel-covered wire, is fixed and formed with two blocks of circular G10 plates, line
Enclose and be in series for two coils, flat board spiral winding leading-out terminal is connected with described high-field electrode joint, forms high-tension electricity
Flow pulse circuit.
Described high-field electrode flange, is combined, insulating trip is enclosed on by copper electrode, sealing ring, insulating trip, clamp nut
On copper electrode, copper electrode is connected by clamp nut with sealing ring with flange.
Cone-shaped seal structure is thin pyramidal structure in up big and down small, and special wide section O snares are middle tiny recessed
In groove, by the pretightning force of the preloading spring structure, the structure can realizes high vacuum seal, while O circles will not also take off
Fall.
It is an advantage of the invention that the fast filling valve is driven by double-spiral coil, additional spring pre-tightening system, and using special
The sealing structure of different structure, the response time of the valve can get to 0.3ms, and the number of particles of maximum injection can reach 10^23,
And can in tokamak strong magnetic field circumstance normal work.
Brief description of the drawings
Fig. 1 is that Plasma disruption provided by the present invention protects special double eddy current coil fast filling valve schematic diagrames.
In figure, 1 vacuum cavity, 2 adjustable spring pretensioner systems, 3 liners, 4 flat board spiral windings, 5 valve elements, 6 valve rods, 7 is high
Press insulating electrode flange, 8 cone-shaped seal structures, 9 air inlets, 10 gas outlets, bonnet after 11, bonnet before 12,13 sleeves, 14 ends
Lid, 15 valve bodies.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples：
As shown in figure 1, a kind of Plasma disruption protects special double eddy current coil fast filling valves to include valve body 15, valve
The both ends of body 15 are connected to rear bonnet 11 and preceding bonnet 12, and the inner space of valve body 15 forms vacuum cavity 1, flat board spiral
Coil 4 is fixed among liner 3, and liner 3 is fixed with vacuum cavity 1, and valve element 5 is also equipped with liner 3, and valve rod 6 passes through flat board spiral shell
Spin line circle 4, liner 3 and valve element 5, one end of valve rod 6 are connected with cone-shaped seal structure 8, and the outside of cone-shaped seal structure 8 is rear valve
Lid 11, together with rear bonnet 11 is bolted with valve body 15, be provided with gas outlet 10 among rear bonnet 11, valve rod 6 it is another
End outside is cased with adjustable spring pretensioner systems 2, and preceding bonnet 12 is connected with valve body 15, and the centre of preceding bonnet 12 is connected with sleeve pipe 13,
The termination of sleeve pipe 13 is connected with end cap 14, and valve rod 6 and adjustable spring pretensioner systems 2 are inserted into sleeve pipe 13, when pulse current leads to
When crossing flat board spiral winding 4, valve element 5 will be flicked by forceful electric power magnetic force, so as to the high pressure gas in vacuum cavity 1
Body will spray at cone-shaped seal structure, thus realize quickly inflation.The bottom of valve body 15 is connected with high-voltage isulation electrode
Flange 7, air inlet 9 is connected with high-voltage isulation electrode flange 7.Spring is process using 65Mn, and spring port is provided with one
The knob of adjustable springs decrement, the decrement of spring can be adjusted by adjusting the knob, so as to adjusting spool institute
The backside pressure received.
The structure of liner 3 is to be fixed on it by fixing nut into the hollow structure with pilot hole, flat board spiral winding 4
Inside, while the structure is also the guiding and position-limit mechanism of valve element, valve element can only move reciprocatingly along spacing hole.Outside liner 3
There is fixing screwed hole in portion, liner 3 and described vacuum cavity 1 can be fixed with screw.
Flat board spiral winding 4, it is to be formed with the rich system of high pressure enamel-covered wire, is fixed and formed with two blocks of circular G10 plates, and coil
It is in series for two coils, the leading-out terminal of flat board spiral winding 4 is connected with described high-field electrode joint, forms high-tension current
Pulse circuit.
High-field electrode flange 7, combined by copper electrode, sealing ring, insulating trip, clamp nut, insulating trip is enclosed on copper electricity
On extremely, then copper electrode is tightened with sealing ring with flange with clamp nut and is connected, the electrode flange can so born several
The insulation voltage of kilovolt, 5Mpa high pressure sealing can be born again.
Cone-shaped seal structure 8 is thin pyramidal structure in up big and down small, and special wide section O snares are middle tiny recessed
In groove, by the pretightning force of the preloading spring structure, the structure can realizes high vacuum seal, while O circles will not also take off
Fall, tokamak vacuum environment can be met to the leak rate of interfaced system and the requirement of security.
Below in conjunction with accompanying drawing, the present invention is further illustrated：
In non-power status, valve element is in the presence of the pretightning force that spring pre-tightening system provides to cone-shaped seal structure one
Elastic force, whole vacuum cavity is set to be in sealing state, when flat board spiral winding is passed through flash by high-voltage isulation electrode flange
During electric current, valve element will be overcome the elastic force of spring and the pressure of inside cavity gas by strong electromagnetic force and flick, cavity
Internal gases at high pressure will spray from gas outlet, then can quickly enter tokamak dress by the connecting pipe of outside
Put, because electric current is pulse current, electromagnetic force is also pulsed, and when the current vanishes, valve element will be in spring force and height
Initial position is returned in the presence of pressure gas pressure, completes pulsatile once inflation.
Claims (6)
1. a kind of Plasma disruption protects special double eddy current coil fast filling valves, it is characterised in that：It includes valve body
(15), the both ends of valve body (15) are respectively equipped with rear bonnet (11) and preceding bonnet (12), and the inner space of valve body (15) forms vacuum
Cavity (1), flat board spiral winding (4) are fixed among liner (3), and liner (3) is fixed with vacuum cavity (1), are set in liner (3)
There is valve element (5), valve rod (6) passes through flat board spiral winding (4), liner (3) and valve element (5), and one end of valve rod (6) is connected with taper
Sealing structure (8), the outside of cone-shaped seal structure (8) is rear bonnet (11), and rear bonnet (11) links together with valve body (15),
Gas outlet (10) is provided among bonnet (11) afterwards, adjustable spring pretensioner systems (2), preceding valve are provided with the outside of the other end of valve rod (6)
Lid (12) is connected with valve body (15), and the centre of preceding bonnet (12) is provided with sleeve pipe (13), and the termination of sleeve pipe (13) is provided with end cap (14),
Valve rod (6) and adjustable spring pretensioner systems (2) are inserted into sleeve pipe (13).
2. a kind of Plasma disruption as claimed in claim 1 protects special double eddy current coil fast filling valves, its feature
It is：The bottom of valve body (15) is provided with high-voltage isulation electrode flange (7), and high-voltage isulation electrode flange is connected with air inlet on (7)
(9)。
3. a kind of Plasma disruption as claimed in claim 1 protects special double eddy current coil fast filling valves, its feature
It is：Described liner (3) is the hollow structure with pilot hole, and flat board spiral winding (4) is fixed on it by fixing nut
Inside, while the structure is also the guiding and position-limit mechanism of valve element, valve element (5) can only move reciprocatingly along pilot hole, liner
(3) it is outside to have fixing screwed hole, can liner (3) and described vacuum cavity (1) is fixed with screw.
4. a kind of Plasma disruption as claimed in claim 1 protects special double eddy current coil fast filling valves, its feature
It is：Described flat board spiral winding (4), it is to be formed with the rich system of high pressure enamel-covered wire, is fixed and formed with two blocks of circular G10 plates, line
Enclose and be in series for two coils, flat board spiral winding (4) leading-out terminal is connected with high-field electrode joint, forms high-tension current arteries and veins
Refunds road.
5. a kind of Plasma disruption as claimed in claim 2 protects special double eddy current coil fast filling valves, its feature
It is：Described high-field electrode flange (7), is combined, insulating trip is enclosed on by copper electrode, sealing ring, insulating trip, clamp nut
On copper electrode, copper electrode is connected by clamp nut with sealing ring with flange.
6. a kind of Plasma disruption as claimed in claim 1 protects special double eddy current coil fast filling valves, its feature
It is：Cone-shaped seal structure (8) is thin pyramidal structure in up big and down small, and special wide section O snares are middle tiny recessed
In groove, by the pretightning force of the adjustable spring pretensioner systems (2), the structure can realizes high vacuum seal, while O is enclosed
It will not fall off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410557637.0A CN105587912B (en) | 2014-10-20 | 2014-10-20 | Plasma disruption protects special double eddy current coil fast filling valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410557637.0A CN105587912B (en) | 2014-10-20 | 2014-10-20 | Plasma disruption protects special double eddy current coil fast filling valves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105587912A CN105587912A (en) | 2016-05-18 |
| CN105587912B true CN105587912B (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410557637.0A Active CN105587912B (en) | 2014-10-20 | 2014-10-20 | Plasma disruption protects special double eddy current coil fast filling valves |
Country Status (1)
| Country | Link |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI694219B (en) * | 2018-12-14 | 2020-05-21 | 國家中山科學研究院 | Gas packer |
| CN114360747B (en) * | 2021-12-17 | 2023-08-15 | 核工业西南物理研究院 | Tokamak plasma rupture real-time control and mitigation system and method |
| CN114776864B (en) * | 2022-04-25 | 2024-03-26 | 清华大学 | Electric valve and tokamak device with same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1492145A1 (en) * | 1987-11-10 | 1989-07-07 | Ленинградский Политехнический Институт Им.М.И.Калинина | Electromagnetic valve |
| US9109715B2 (en) * | 2008-10-05 | 2015-08-18 | Alameda Applied Sciences Corp. | Resonant supersonic gas valve and nozzle |
| CN102155569B (en) * | 2011-04-12 | 2013-02-13 | 中国科学院等离子体物理研究所 | Special high-air-flow rapid inflation valve for plasma fracture prevention |
| CN102588658B (en) * | 2012-02-29 | 2013-09-18 | 中国科学院等离子体物理研究所 | Special anti-magnetic interference high flow inflation valve for plasma disruption protection |
| CN204187080U (en) * | 2014-10-20 | 2015-03-04 | 核工业西南物理研究院 | Two eddy current coil fast filling valves that Plasma disruption protection is special |
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| CN105587912A (en) | 2016-05-18 |
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