CN204187080U - Two eddy current coil fast filling valves that Plasma disruption protection is special - Google Patents
Two eddy current coil fast filling valves that Plasma disruption protection is special Download PDFInfo
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- CN204187080U CN204187080U CN201420606029.XU CN201420606029U CN204187080U CN 204187080 U CN204187080 U CN 204187080U CN 201420606029 U CN201420606029 U CN 201420606029U CN 204187080 U CN204187080 U CN 204187080U
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Abstract
The utility model belongs to the special two eddy current coil fast filling valves of a kind of Plasma disruption protection.It comprises valve body, the two ends of valve body are respectively equipped with rear valve gap and front valve gap, the inner space of valve body forms vacuum cavity, dull and stereotyped spiral winding is fixed in the middle of liner, liner and vacuum cavity are fixed, spool is provided with in liner, valve rod is through dull and stereotyped spiral winding, liner and spool, one end of valve rod is connected with cone-shaped seal structure, the outside of cone-shaped seal structure is rear valve gap, rear valve gap and valve body link together, air outlet is had in the middle of rear valve gap, adjustable spring pretensioner systems is provided with outside the other end of valve rod, front valve gap is connected with valve body, the centre of front valve gap is provided with sleeve pipe, the termination of sleeve pipe is provided with end cap, valve rod and adjustable spring pretensioner systems are inserted in sleeve pipe.Advantage is, it is driven by double-spiral coil, additional spring pre-tightening system, and adopts special sealing configuration, and the response time of this valve can reach 0.3ms and normally can work in tokamak strong magnetic field circumstance.
Description
Technical field
The invention belongs to a kind of vacuum technique, highpressure technology, High-Voltage Technology, be specifically related to two eddy current coil fast filling valves that the protection of a kind of Plasma disruption is special.
Background technique
In Tokamak discharge test, due to reasons such as plasma control, hydromagnetic instability, impurity, high energy escaped particles, breaking of plasma is made to be difficult to avoid.Particularly at the main research realizing Tokamak Fusion Reactor steady-state operation---maintain in the electric discharge of stable state high parameter plasma, Plasma disruption electric discharge can cause serious destruction, thermal load as large in first wall, strong mechanical stress, large escape electric current etc., even to partially consider device target plate, first wall parts even device cause major injury.Although the operational limit of the different parameters of existing Tokamak discharge has had deep research, and tokamak can be controlled and avoid breaking generation in " safe operation " region, but always have some to break to be difficult to avoid, therefore, for avoiding under high parameter condition or reducing the harm caused bigger device of breaking, the research carrying out Plasma disruption alleviation is necessary and is very important, is also one of emphasis of working as the research of forestock Karma card plasma physics.
Experimental studies have found that, if a high-pressure inert gas measured surely can be injected to plasma inside rapidly before rupture occurs, then the harmfulness of Plasma disruption can be reduced to minimum degree to play the effect of protective gear safety.
Due to the emergentness that Plasma disruption occurs, therefore, foreign gas fast be realized and inject, the gas charging valve of response fast must be had, this gas charging valve normally can also work in tokamak strong magnetic field circumstance simultaneously, but also will have the ability injecting atm number within the time of several milliseconds.
Summary of the invention
The object of this invention is to provide two eddy current coil fast filling valves that the protection of a kind of Plasma disruption is special, it can realize foreign gas fast and inject.
The present invention realizes like this, two eddy current coil fast filling valves that a kind of Plasma disruption protection is special, it comprises valve body, the two ends of valve body are respectively equipped with rear valve gap and front valve gap, the inner space of valve body forms vacuum cavity, dull and stereotyped spiral winding is fixed in the middle of liner, liner and vacuum cavity are fixed, spool is provided with in liner, valve rod is through dull and stereotyped spiral winding, liner and spool, one end of valve rod is connected with cone-shaped seal structure, the outside of cone-shaped seal structure is rear valve gap, rear valve gap and valve body link together, air outlet is had in the middle of rear valve gap, adjustable spring pretensioner systems is provided with outside the other end of valve rod, front valve gap is connected with valve body, the centre of front valve gap is provided with sleeve pipe, the termination of sleeve pipe is provided with end cap, valve rod and adjustable spring pretensioner systems are inserted in sleeve pipe.
The bottom of valve body is provided with High-Voltage Insulation electrode flange, and High-Voltage Insulation electrode flange is connected with suction port.
Described liner is the hollow structure with pilot hole, dull and stereotyped spiral winding is fixing therein by set screw nut, this structure is also guiding and the position-limit mechanism of spool simultaneously, spool can only move reciprocatingly along pilot hole, there is retaining thread hole liner outside, liner and described vacuum cavity can be fixed with screw.
Described dull and stereotyped spiral winding, be form by the high pressure enameled cable system of having mercy on, fixedly form with two blocks of circular G10 plates, coil is that two coils connected in series form, and dull and stereotyped spiral winding outlet terminal is connected with high-field electrode joint, forms high-tension current pulse circuit.
Described High-Voltage Insulation electrode flange, is combined by copper electrode, seal ring, insulating trip, tightening nut, and insulating trip is enclosed within copper electrode, and tightening nut is by copper electrode and seal ring and Flange joint.
Cone-shaped seal structure be up big and down small in thin cone structure, special wide cross section O snare is in the groove that centre is tiny, and by the pretightening force of preloading spring structure, this structure just can realize high vacuum seal, and O circle also can not come off simultaneously.
Advantage of the present invention is, this fast filling valve is driven by double-spiral coil, additional spring pre-tightening system, and adopt the sealing configuration of special construction, the response time of this valve can get to 0.3ms, the number of particles of maximum injection can reach 10^23, and normally can work in tokamak strong magnetic field circumstance.
Accompanying drawing explanation
Fig. 1 is that Plasma disruption provided by the present invention protects special two eddy current coil fast filling valve schematic diagram.
In figure, 1 vacuum cavity, 2 adjustable spring pretensioner systems, 3 liners, 4 dull and stereotyped spiral windings, 5 spools, 6 valve rods, 7 High-Voltage Insulation electrode flanges, 8 cone-shaped seal structures, 9 suction ports, 10 air outlets, valve gap after 11, valve gap before 12,13 sleeves, 14 end caps, 15 valve bodies.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail:
As shown in Figure 1, the special two eddy current coil fast filling valves of a kind of Plasma disruption protection comprise valve body 15, the two ends of valve body 15 are connected to rear valve gap 11 and front valve gap 12, the inner space of valve body 15 forms vacuum cavity 1, dull and stereotyped spiral winding 4 is fixed in the middle of liner 3, liner 3 is fixed with vacuum cavity 1, in liner 3, spool 5 is also housed, valve rod 6 is through dull and stereotyped spiral winding 4, liner 3 and spool 5, one end of valve rod 6 is connected with cone-shaped seal structure 8, the outside of cone-shaped seal structure 8 is rear valve gap 11, together with rear valve gap 11 is bolted with valve body 15, air outlet 10 is had in the middle of rear valve gap 11, outside the other end of valve rod 6, cover has adjustable spring pretensioner systems 2, front valve gap 12 is connected with valve body 15, the centre of front valve gap 12 is connected with sleeve pipe 13, the termination of sleeve pipe 13 is connected with end cap 14, valve rod 6 and adjustable spring pretensioner systems 2 are inserted in sleeve pipe 13, when impulsive current is by dull and stereotyped spiral winding 4, spool 5 will be subject to strong electromagnetic active force and flick, thus the pressurized gas being arranged in vacuum cavity 1 will spray from cone-shaped seal structure, thus realize inflating fast.The bottom of valve body 15 is connected with High-Voltage Insulation electrode flange 7, High-Voltage Insulation electrode flange 7 is connected with suction port 9.Spring adopts 65Mn to process, and spring port is provided with the knob of an adjustable springs decrement, by regulating this knob can the decrement of Regulation spring, thus can backside pressure suffered by regulating spool.
The structure of liner 3 is into the hollow structure with pilot hole, and dull and stereotyped spiral winding 4 is fixing therein by set screw nut, and this structure is also guiding and the position-limit mechanism of spool simultaneously, and spool can only move reciprocatingly along spacing hole.There is retaining thread hole liner 3 outside, liner 3 and described vacuum cavity 1 can be fixed with screw.
Dull and stereotyped spiral winding 4, is form with the high pressure enameled cable system of having mercy on, fixedly forms with two blocks of circular G10 plates, and coil is two coils connected in series forms, and dull and stereotyped spiral winding 4 outlet terminal is connected with described high-field electrode joint, formation high-tension current pulse circuit.
High-Voltage Insulation electrode flange 7, combined by copper electrode, seal ring, insulating trip, tightening nut, insulating trip is enclosed within copper electrode, then with tightening nut copper electrode and seal ring tightened with flange and be connected, can make like this this electrode flange bear several kilovolts insulation voltage, the high pressure sealing of 5Mpa can be born again.
Cone-shaped seal structure 8 be up big and down small in thin cone structure, special wide cross section O snare is in the groove that centre is tiny, by the pretightening force of described preloading spring structure, this structure just can realize high vacuum seal, simultaneously O circle also can not come off, and can meet tokamak vacuum environment pair and the leak rate of its docking system and the requirement of Security.
Below in conjunction with accompanying drawing, the present invention is further illustrated:
At non-power status, to cone-shaped seal structure elastic force under the effect of the pretightening force that spool provides in spring pre-tightening system, whole vacuum cavity is made to be in sealing state, when dull and stereotyped spiral winding passes into By Impulsive Current by High-Voltage Insulation electrode flange, spool will be subject to strong electromagnetic force and overcomes the elastic force of spring and the pressure of inside cavity gas and flick, the pressurized gas of inside cavity will spray from air outlet, tokamak device can be entered fast again by outside connecting tube, because electric current is impulsive current, electromagnetic force is also pulsed, when the current vanishes, spool will get back to initial position under the effect of spring force and high-pressure gas pressure, complete pulsatile once inflation.
Claims (6)
1. two eddy current coil fast filling valves that a Plasma disruption protection is special, it is characterized in that: it comprises valve body (15), the two ends of valve body (15) are respectively equipped with rear valve gap (11) and front valve gap (12), the inner space of valve body (15) forms vacuum cavity (1), dull and stereotyped spiral winding (4) is fixed in the middle of liner (3), liner (3) is fixed with vacuum cavity (1), spool (5) is provided with in liner (3), valve rod (6) is through dull and stereotyped spiral winding (4), liner (3) and spool (5), one end of valve rod (6) is connected with cone-shaped seal structure (8), the outside of cone-shaped seal structure (8) is rear valve gap (11), rear valve gap (11) and valve body (15) link together, air outlet (10) is had in the middle of rear valve gap (11), adjustable spring pretensioner systems (2) is provided with outside the other end of valve rod (6), front valve gap (12) is connected with valve body (15), the centre of front valve gap (12) is provided with sleeve pipe (13), the termination of sleeve pipe (13) is provided with end cap (14), valve rod (6) and adjustable spring pretensioner systems (2) are inserted in sleeve pipe (13).
2. two eddy current coil fast filling valves that a kind of Plasma disruption protection as claimed in claim 1 is special, it is characterized in that: the bottom of valve body (15) is provided with High-Voltage Insulation electrode flange (7), High-Voltage Insulation electrode flange (7) is connected with suction port (9).
3. two eddy current coil fast filling valves that a kind of Plasma disruption protection as claimed in claim 1 is special, it is characterized in that: described liner (3) is the hollow structure with pilot hole, dull and stereotyped spiral winding (4) is fixing therein by set screw nut, this structure is also guiding and the position-limit mechanism of spool simultaneously, spool (5) can only move reciprocatingly along pilot hole, there is retaining thread hole liner (3) outside, liner (3) and described vacuum cavity (1) can be fixed with screw.
4. two eddy current coil fast filling valves that a kind of Plasma disruption protection as claimed in claim 1 is special, it is characterized in that: described dull and stereotyped spiral winding (4), form by the high pressure enameled cable system of having mercy on, fixedly form with two blocks of circular G10 plates, coil is that two coils connected in series form, dull and stereotyped spiral winding (4) outlet terminal is connected with high-field electrode joint, forms high-tension current pulse circuit.
5. two eddy current coil fast filling valves that a kind of Plasma disruption protection as claimed in claim 2 is special, it is characterized in that: described High-Voltage Insulation electrode flange (7), combined by copper electrode, seal ring, insulating trip, tightening nut, insulating trip is enclosed within copper electrode, and tightening nut is by copper electrode and seal ring and Flange joint.
6. two eddy current coil fast filling valves that a kind of Plasma disruption protection as claimed in claim 1 is special, it is characterized in that: cone-shaped seal structure (8) is cone structure thin in up big and down small, special wide cross section O snare is in the groove that centre is tiny, by the pretightening force of preloading spring structure, this structure just can realize high vacuum seal, and O circle also can not come off simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420606029.XU CN204187080U (en) | 2014-10-20 | 2014-10-20 | Two eddy current coil fast filling valves that Plasma disruption protection is special |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420606029.XU CN204187080U (en) | 2014-10-20 | 2014-10-20 | Two eddy current coil fast filling valves that Plasma disruption protection is special |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204187080U true CN204187080U (en) | 2015-03-04 |
Family
ID=52619082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420606029.XU Withdrawn - After Issue CN204187080U (en) | 2014-10-20 | 2014-10-20 | Two eddy current coil fast filling valves that Plasma disruption protection is special |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204187080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587912A (en) * | 2014-10-20 | 2016-05-18 | 核工业西南物理研究院 | Rapid charging valve of special-purpose double-eddy-current coil used for plasma fracture protection |
| CN109854794A (en) * | 2019-03-01 | 2019-06-07 | 中国科学院合肥物质科学研究院 | A kind of dedicated differential fast filling valve of Plasma disruption protection |
-
2014
- 2014-10-20 CN CN201420606029.XU patent/CN204187080U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587912A (en) * | 2014-10-20 | 2016-05-18 | 核工业西南物理研究院 | Rapid charging valve of special-purpose double-eddy-current coil used for plasma fracture protection |
| CN109854794A (en) * | 2019-03-01 | 2019-06-07 | 中国科学院合肥物质科学研究院 | A kind of dedicated differential fast filling valve of Plasma disruption protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150304 Effective date of abandoning: 20180316 |
|
| AV01 | Patent right actively abandoned |