CN202405410U - Stable-state tokamak low hybrid wave antenna cooling structure - Google Patents
Stable-state tokamak low hybrid wave antenna cooling structure Download PDFInfo
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- CN202405410U CN202405410U CN2011204722719U CN201120472271U CN202405410U CN 202405410 U CN202405410 U CN 202405410U CN 2011204722719 U CN2011204722719 U CN 2011204722719U CN 201120472271 U CN201120472271 U CN 201120472271U CN 202405410 U CN202405410 U CN 202405410U
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- cooling
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- coldplate
- heat sink
- tokamak
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Abstract
The utility model discloses a stable-state tokamak low hybrid wave antenna cooling structure, comprising a heat sink, and a cooling plate; wherein the heat sink and a main body of the cooling plate are integrated into a whole through a method such as vaccum brazing, or electron beam welding, and so on; the cooling plate is provided with a cooling channel, the cooling channel turns back at a position which is the closest to the heat sink to form a 180-degree curve; and secondary circulation may occur when a cooling medium flows through the position, thereby enhancing heat exchange. The stable-state tokamak low hybrid wave antenna cooling structure of the utility model enables the heat radiated from a plasma to an end face of an antenna to be quickly leaded to the cooling medium, thus the stable-state tokamak low hybrid wave antenna cooling structure has a high-efficiency active cooling function.
Description
Technical field
The utility model relates to magnetic confinement nuclear fusion device field, specifically is a kind of steady-state tokamak lower hybrid wave launching antenna cooling structure.
Background technology
The lower hybrid wave drive current is proved the most effective non-induction drive current method on the controlled magnetic confinement thermonuclear fusion device of tokamak type by experiment; Antenna is a very important subsystem in the lower hybrid wave system, and its effect is with being coupled in the Tokamak Plasma through the microwave energy that transmission line transports by microwave source.In this course; On the one hand, be limited owing to make the conductivity of electrolyte materials of antenna, microwave energy can produce Joule heat at metal inner surface during through antenna; But this heat that is produced by conductor losses is distributed in the entire antenna inner surface; Integral body there is the effect of uniform load, makes that antenna temperature is whole to promote, but little to the stability influence of antenna structure; On the other hand, plasma is known from experience to a large amount of heats of aerial radiation, and it mainly acts on the aerial radiation end face; Because aerial radiation end face density of heat flow rate is big, along with microwave power strengthens, and the prolongation of experimental period; Heat just can constantly accumulate, and causes antenna, mainly is that the temperature of antenna surface to the radiation end of plasma sharply rises; If cooling system is not in time derived this heat efficiently; The mechanical strength that makes material is descended, and it is big that thermal stress becomes, and influences even threaten the stability of antenna self.Most of tokamak of past and operation at present all are pulse lengths at several seconds to tens seconds plasma discharge; Plasma to extraradial gross power also just in several megawatt magnitudes; Rely on traditional cooling structure just can solve the cooling problem of antenna; But along with the present and the future's tokamak device is constantly upgraded, pulse length extends to hundreds of second or even steady operation, and the power that various assistant heating means are provided constantly promotes; Plasma resonance power reaches 20 megawatts even higher, requires lower hybrid wave launching antenna to have Active Cooling System very efficiently.
For the domestic and international present lower hybrid wave launching antenna cooling device that adopts, its coldplate is to be processed by homogenous material, and what adopt usually is copper or stainless steel; If whole coldplate material all adopts copper; Along with the prolongation of running time, the copper pipe oxide layer will be more and more thicker, and heat-transfer effect can be worse and worse; And if the employing stainless steel is processed whole coldplate; Because the low heat conductivity of himself, cooling effect is had a greatly reduced quality, and therefore obviously can't satisfy the increasingly high cooling requirement of lower hybrid wave launching antenna according to present cooling means.
The utility model content
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of cooling performance ground steady-state tokamak lower hybrid wave launching antenna cooling structure that can promote lower hybrid wave launching antenna greatly to be provided.
The technical scheme of the utility model is following:
Steady-state tokamak lower hybrid wave launching antenna cooling structure; Include coldplate; It is characterized in that: the front end of said coldplate be fixed with one heat sink; Have the cooling duct of a U-shaped on the said coldplate, the bottom of the cooling duct of said U-shaped is near heat sink, and two tops of cooling duct of U-shaped that are positioned at the rear end of coldplate are connected to an extraction tube respectively.
Described a kind of steady-state tokamak lower hybrid wave launching antenna cooling structure is characterized in that: said heat sink and annexation coldplate are vacuum brazing or electron beam welding.
Described a kind of steady-state tokamak lower hybrid wave launching antenna cooling structure, it is characterized in that: described heat sink material is copper or copper alloy, the material of said coldplate and extraction tube is a stainless steel material.
The utility model has the advantages that: the utility model makes that plasma resonance can be by the coolant that leads rapidly to the heat of antenna end face; The coolant at this place is in turbulent motion state the most violent in the whole cooling duct simultaneously; Thereby the heat exchange coefficient of itself and vias inner walls reaches maximum; Heat sink and welding coldplate can adopt vacuum brazing or electron beam welding once to accomplish, and the extraction tube of coolant adopts stainless steel material, thereby guarantees that the extraction tube of each cooling duct and the outside pipeline that transports coolant can adopt argon arc welding; Assurance is in each inner pipe welding seam of tokamak and does not produce leakage, ensures the experiment security of operation.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
As shown in Figure 1; Steady-state tokamak lower hybrid wave launching antenna cooling structure; Include coldplate 2, it is characterized in that: the front end of said coldplate 2 be fixed with one heat sink 1, have the cooling duct 3 of a U-shaped on the said coldplate 2; The bottom of the cooling duct 3 of said U-shaped is near heat sink 1, and two tops of cooling duct 3 of U-shaped that are positioned at the rear end of coldplate 2 are connected to an extraction tube 4 respectively.
Said heat sink 1 with the annexation of coldplate 2 be vacuum brazing or electron beam welding.
Described heat sink 1 material is copper or copper alloy, and the material of said coldplate 2 and extraction tube 4 is a stainless steel material.
Claims (3)
1. steady-state tokamak lower hybrid wave launching antenna cooling structure; Include coldplate; It is characterized in that: the front end of said coldplate be fixed with one heat sink; Have the cooling duct of a U-shaped on the said coldplate, the bottom of the cooling duct of said U-shaped is near heat sink, and two tops of cooling duct of U-shaped that are positioned at the rear end of coldplate are connected to an extraction tube respectively.
2. a kind of steady-state tokamak lower hybrid wave launching antenna cooling structure according to claim 1 is characterized in that: said heat sink and annexation coldplate are vacuum brazing or electron beam welding.
3. a kind of steady-state tokamak lower hybrid wave launching antenna cooling structure according to claim 1, it is characterized in that: described heat sink material is copper or copper alloy, the material of said coldplate and extraction tube is a stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204722719U CN202405410U (en) | 2011-11-24 | 2011-11-24 | Stable-state tokamak low hybrid wave antenna cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204722719U CN202405410U (en) | 2011-11-24 | 2011-11-24 | Stable-state tokamak low hybrid wave antenna cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202405410U true CN202405410U (en) | 2012-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204722719U Expired - Fee Related CN202405410U (en) | 2011-11-24 | 2011-11-24 | Stable-state tokamak low hybrid wave antenna cooling structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN202405410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601190A (en) * | 2017-12-20 | 2018-09-28 | 中国科学院合肥物质科学研究院 | Height couples the double ring type ion involution antenna of low impurity |
-
2011
- 2011-11-24 CN CN2011204722719U patent/CN202405410U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601190A (en) * | 2017-12-20 | 2018-09-28 | 中国科学院合肥物质科学研究院 | Height couples the double ring type ion involution antenna of low impurity |
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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 |
Granted publication date: 20120829 Termination date: 20171124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |