CN101777391A - Faraday shield helium cooling pipe structure - Google Patents
Faraday shield helium cooling pipe structure Download PDFInfo
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- CN101777391A CN101777391A CN200910251708A CN200910251708A CN101777391A CN 101777391 A CN101777391 A CN 101777391A CN 200910251708 A CN200910251708 A CN 200910251708A CN 200910251708 A CN200910251708 A CN 200910251708A CN 101777391 A CN101777391 A CN 101777391A
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- pipeline
- medium layer
- porous medium
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- pipe structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
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Abstract
The invention discloses a Faraday shield helium cooling pipe structure, which comprises an outer pipe and a diversion mandrel in a petaloid hollow pipeline structure, wherein the outer pipe is sheathed outside the diversion mandrel; a porous medium layer, which is made of metal powder, is arranged between the outer pipe and the diversion mandrel; the porous medium layer, the inner wall of the outer pipe, and the outer wall of the diversion mandrel are tightly coupled by sintering; an even number of petaloid pipelines around the diversion mandrel are arranged on the diversion mandrel in the axial direction at certain intervals, the petaloid pipelines are parallel to the axial direction, and the section of the petaloid pipelines surround the center of the section of the diversion mandrel in a petaloid way; the position on each pipeline corresponding to the diversion mandrel and the petaloid pipeline is provided with a vent hole which is communicated with the petaloid pipeline; and the surface of the vent hole adhered to the porous medium layer. The technology of the invention can also be used for cooling other internal components in a nuclear fusion device in future and cooling similar components of which the surface bears high current density.
Description
Technical field
The present invention relates to microwave heating cooling device field, especially a kind of Faraday shield helium cooling pipe structure of ion involution heating (ICRF) antenna.
Background technology
In present existing Tokamak nuclear fusion device, ion cyclotron resonance heating (ICRF) is one of very important auxiliary heating means on the tokamak device.The plasma parts improve along with the tokamak device experiment parameter is little, in the face of will bear more and more higher thermal load disconnectedly.Faraday shield be in the ICRF antenna towards the plasma parts, be to bear the highest part of thermal load in the antenna.In main in the world several nuclear fusion experimental devices at present, the Faraday shield in the ICRF antenna all adopts the water-cooling structure of deionized water as heat-exchange working medium.But in following nuclear fusion device, will be towards the heat flow density that the plasma parts are born up to the 10MW/m2 magnitude, experimentize under so high thermal load as Faraday shield towards plasma, if the untimely heat of taking away the Faraday shield surface, will ablate device and cause the experiment can't carry out.Common when the time comes heat exchange structure can't satisfy its heat exchange requirement, though and with water be heat-exchange working medium easily row have certain potential safety hazard, will cause can't moving of whole tokamak device in case take place to leak.
Summary of the invention
The purpose of this invention is to provide a kind of Faraday shield helium cooling pipe structure, problem at the existence of Faraday shield cooling structure, under the experiment operation background of following high parameter, take away high-temperature plasma by the helium cooling technology and be radiated high hot-fluid on the Faraday shield, guarantee that Faraday shield is not ablated in whole device, thereby guarantee the stable operation of whole ion involution heating antenna device.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of Faraday shield helium cooling pipe structure, include outer tube, it is characterized in that: the shunting axle that also includes many lobes hollow pipe structure, described outer tube sleeve is in shunting axle outside, the porous medium layer that has metal powder material to make between described outer tube and the shunting axle, described porous medium layer and outer tube wall, shunting axle outer wall are combined as a whole by sintered compact; Described shunting axle has uniform ring around shunting axle central axis even number flap pipeline on every side, and described flap pipeline is parallel with the central axis of described shunting axle; On the pipe shaft of every lobe flap pipeline, radially have a plurality of air-vents that are communicated with the flap pipeline, the hole face of described air-vent is close to described porous medium layer.
Described a kind of Faraday shield helium cooling pipe structure is characterized in that: described porous medium layer is formed by the copper powder sintering, and described thickness of dielectric layers is 3mm, and the medium porosity is about 50%.
Described a kind of Faraday shield helium cooling pipe structure is characterized in that: described shunting axle material is the 316L stainless steel.
Described a kind of Faraday shield helium cooling pipe structure is characterized in that: described outer tube material is Φ 11X1,316L stainless-steel tube.
Faraday shield helium cooling tube of the present invention be a kind of be that the pump of heat-exchange working medium drives single-phase porous medium layer heat exchange structure with the helium, this kind structure is utilized the advantage of the high coefficient of heat transfer between helium and the porous medium layer, and shorten the cooling stroke of helium as much as possible, Faraday shield is evenly cooled off, greatly improved heat exchange efficiency.
Structure of the present invention is made up of outer tube (316L stainless steel), porous medium layer (copper powder sintering) and shunting axle (316L).Porous medium layer combines by sintered compact with outer tube wall and shunting axle outer wall, improves heat exchange efficiency thereby reduce the interfacial thermal resistance of each several part.
Outer tube of the present invention is that Φ 11X1, material are the stainless steel of 316L, it be heat mainly bear carrier.
Porous medium layer of the present invention forms for the copper powder sintering, and thickness is 3mm, and the medium porosity is about 50%, and its purpose increases the heat interchanging area and the coefficient of heat transfer.
Shunting mandrel structure material of the present invention is the 316L stainless steel, is a kind of many lobes hollow pipe structure.Its effect one is the bulk strength that improves cooling tube; It two is to make helium flow into the end shunting, is entering porous medium layer with respect to flowing into the different position of end in heat transfer process, in porous medium layer by flowing out behind the certain distance.The shunting axle has the flap passage of an even number n helium, opens air-vent with respect to flowing into end on every section flap pipeline of shunting axle.During work, helium flows at the inflow end of flap pipeline, split into n/2 part, each part helium all passes through on the shunting axle corresponding air-vent and enters porous medium layer and carry out heat exchange, flows out from the other end by the air-vent on next section flap pipeline of porous medium layer correspondence at last.On this shunting axle many helium air-vents are arranged, purpose is to improve the heat exchange efficiency of Faraday shield and evenly cool off Faraday shield by the length of stroke that reduces heat-exchange working medium, thereby strengthens the cooling effect of helium.
The invention has the beneficial effects as follows: utilize the high coefficient of heat transfer of the comparatively safe stability of helium in nuclear fusion device running environment and itself and porous medium improve the Faraday shield pipe heat exchange efficiency (rule of thumb formula and experiment draw the overall coefficient of heat transfer can be up to 10
6W/m2/K).The final heat transfer problem that solves the Faraday shield pipe that bears high heat flux, technology of the present invention also can apply to the cooling of other internal part in the following nuclear fusion device and the cooling that similar surfaces is born high current density parts.
Beneficial effect of the present invention is: utilize the high coefficient of heat transfer of the comparatively safe stability of helium in nuclear fusion device running environment and itself and porous medium layer improve Faraday shield heat exchange efficiency (rule of thumb formula and experiment draw the overall coefficient of heat transfer can be up to 10
6W/m2/K).The final heat transfer problem that solves the Faraday shield that bears high heat flux, technology of the present invention also can apply to the cooling of other internal part in the following nuclear fusion device and the cooling that similar surfaces is born high current density parts.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 shunts axle tube section synoptic diagram for the present invention.
Fig. 3 shunts axle pipe shaft schematic cross-section for the present invention.
Embodiment
A kind of Faraday shield helium cooling pipe structure includes outer tube 1, and outer tube 1 material is Φ 11X1,316L stainless-steel tube.Also include the shunting axle 3 of many lobes hollow pipe structure, shunting axle 3 materials are the 316L stainless steel.Outer tube 1 is enclosed within shunting axle 3 outsides, the porous medium layer 2 that has metal powder material to make between outer tube 1 and the shunting axle 3, and porous medium layer 2 is formed by the copper powder sintering, and thickness of dielectric layers is 3mm, and the medium porosity is about 50%.Porous medium layer 2 is combined as a whole by sintered compact with outer tube 1 inwall, shunting axle 3 outer walls; Shunting axle 3 has uniform ring around shunting axle central axis even number flap pipeline 6 on every side, and flap pipeline 6 is parallel with the central axis of shunting axle 3; On the pipe shaft of every lobe flap pipeline, radially have the air-vent that is communicated with the flap pipeline, the air-vent of every lobe flap pipeline has a plurality of, and the hole face of air-vent is close to porous medium layer 2.
As Fig. 1, Fig. 2, shown in Figure 3.The flap pipeline of shunting axle 3 is divided into the even number lobe, forms n/2 heat exchanger channels.Porous medium layer 2 is formed by copper powder sintering between stainless outer tube 1 and shunting axle 2.The course of work is as scheming down: helium flows into from flap pipeline one end during work, with one of them flap pipeline is example, after helium flows into, enter porous medium layer 2 from the air-vent 4 of the flap pipeline correspondence that flows into, after porous medium layer 2 carries out heat exchange, finish heat transfer process via air-vent 5 outflows of another flap pipeline correspondence.
Claims (4)
1. Faraday shield helium cooling pipe structure, include outer tube, it is characterized in that: the shunting axle that also includes many lobes hollow pipe structure, described outer tube sleeve is in shunting axle outside, the porous medium layer that has metal powder material to make between described outer tube and the shunting axle, described porous medium layer and outer tube wall, shunting axle outer wall are combined as a whole by sintered compact; Described shunting axle has uniform ring around shunting axle central axis even number flap pipeline on every side, and described flap pipeline is parallel with the central axis of described shunting axle; On the pipe shaft of every lobe flap pipeline, radially have a plurality of air-vents that are communicated with the flap pipeline, the hole face of described air-vent is close to described porous medium layer.
2. a kind of Faraday shield helium cooling pipe structure according to claim 1 is characterized in that: described porous medium layer is formed by the copper powder sintering, and described thickness of dielectric layers is 3mm, and the medium porosity is about 50%.
3. a kind of Faraday shield helium cooling pipe structure according to claim 1 is characterized in that: described shunting axle material is the 316L stainless steel.
4. a kind of Faraday shield helium cooling pipe structure according to claim 1 is characterized in that: described outer tube material is Ф 11X1,316L stainless-steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910251708A CN101777391A (en) | 2009-12-31 | 2009-12-31 | Faraday shield helium cooling pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910251708A CN101777391A (en) | 2009-12-31 | 2009-12-31 | Faraday shield helium cooling pipe structure |
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| Publication Number | Publication Date |
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| CN101777391A true CN101777391A (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910251708A Pending CN101777391A (en) | 2009-12-31 | 2009-12-31 | Faraday shield helium cooling pipe structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104302084A (en) * | 2013-07-17 | 2015-01-21 | 朗姆研究公司 | Air cooled faraday shield and methods for using the same |
| CN104965002A (en) * | 2014-12-16 | 2015-10-07 | 湖南省茶叶研究所（湖南省茶叶检测中心） | Apparatus capable of reducing background noise of electroantennographic instrument and method for detecting antennae by using same |
| US9885493B2 (en) | 2013-07-17 | 2018-02-06 | Lam Research Corporation | Air cooled faraday shield and methods for using the same |
| CN109004339A (en) * | 2018-06-26 | 2018-12-14 | 合肥聚能电物理高技术开发有限公司 | The production tooling and its manufacture craft of the Faraday shield of spiral wave antenna |
| CN109630368A (en) * | 2018-11-28 | 2019-04-16 | 北京控制工程研究所 | High-power complementary field magnetomotive plasma thruster anode high efficient heat exchanging structure |
-
2009
- 2009-12-31 CN CN200910251708A patent/CN101777391A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104302084A (en) * | 2013-07-17 | 2015-01-21 | 朗姆研究公司 | Air cooled faraday shield and methods for using the same |
| CN104302084B (en) * | 2013-07-17 | 2017-04-12 | 朗姆研究公司 | Air cooled faraday shield and methods for using the same |
| US9885493B2 (en) | 2013-07-17 | 2018-02-06 | Lam Research Corporation | Air cooled faraday shield and methods for using the same |
| CN104965002A (en) * | 2014-12-16 | 2015-10-07 | 湖南省茶叶研究所（湖南省茶叶检测中心） | Apparatus capable of reducing background noise of electroantennographic instrument and method for detecting antennae by using same |
| CN104965002B (en) * | 2014-12-16 | 2018-04-17 | 湖南省茶叶研究所（湖南省茶叶检测中心） | Reduce the device of tentaculum electric potential instrument background noise and the method using device detection feeler |
| CN109004339A (en) * | 2018-06-26 | 2018-12-14 | 合肥聚能电物理高技术开发有限公司 | The production tooling and its manufacture craft of the Faraday shield of spiral wave antenna |
| CN109630368A (en) * | 2018-11-28 | 2019-04-16 | 北京控制工程研究所 | High-power complementary field magnetomotive plasma thruster anode high efficient heat exchanging structure |
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Application publication date: 20100714 |