CN106847463A - A kind of superconducting magnet thermal switch - Google Patents
A kind of superconducting magnet thermal switch Download PDFInfo
- Publication number
- CN106847463A CN106847463A CN201611214485.XA CN201611214485A CN106847463A CN 106847463 A CN106847463 A CN 106847463A CN 201611214485 A CN201611214485 A CN 201611214485A CN 106847463 A CN106847463 A CN 106847463A
- Authority
- CN
- China
- Prior art keywords
- superconducting magnet
- switch
- gas receiver
- gas
- thermal switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/04—Cooling
Abstract
The present invention relates to a kind of superconducting magnet thermal switch, including upper switch, GAP TYPE air container and the lower switch for setting gradually；The upper switch is connected with refrigeration machine one-level cold head；The lower switch is connected with superconducting magnet；The GAP TYPE air container includes gas receiver, the embedded bellows being arranged on gas receiver barrel and the gas medium being stored in gas receiver.From above technical scheme, the present invention not only has one-way heat conduction, automatic switch, heat exchange amount big, cold the features such as damage small, additionally it is possible to reduces cool time, accelerates magnet cooling effectiveness, realize the efficient cooling of superconducting magnet, improves running efficiency of system.
Description
Technical field
The present invention relates to superconducting magnet technical field, and in particular to a kind of superconducting magnet thermal switch.
Background technology
The refrigeration system of based superconductive magnet, ability is normal under its core devices superconducting magnet needs to be maintained at liquid helium region
Work, the number of turn of magnet coil is more so that the cool time of magnet is more long.Therefore, with the volume and weight of magnet coil
Change it is big, the cool time of superconducting magnet can be long, is unfavorable for popularization and application.
The content of the invention
It is an object of the invention to provide a kind of superconducting magnet thermal switch, the thermal switch has one-way heat conduction, opens automatically
Close, heat exchange amount it is big, it is cold damage it is small the features such as, it is possible to achieve the efficient cooling of superconducting magnet.
To achieve the above object, present invention employs following technical scheme：
A kind of superconducting magnet thermal switch, including upper switch, GAP TYPE air container and the lower switch for setting gradually；Opened on described
Pass is connected with refrigeration machine one-level cold head；The lower switch is connected with superconducting magnet；The GAP TYPE air container include gas receiver,
The embedded bellows being arranged on gas receiver barrel and the gas medium being stored in gas receiver.
Further, the gas medium is any one in helium, nitrogen, neon.
Further, the gas receiver uses non-magnetic rustproof Steel material.
Further, the bellows uses stainless steel material, and the wall thickness of the bellows is 0.2mm.
Further, installing port is offered on the gas receiver barrel, the bellows is arranged in installing port.
From above technical scheme, the present invention not only has that one-way heat conduction, automatic switch, heat exchange amount are big, cold damage small
The features such as, additionally it is possible to cool time is reduced, accelerates magnet cooling effectiveness, realize the efficient cooling of superconducting magnet, improve system fortune
Line efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Wherein：
1st, upper switch, 2, gas receiver, 3, lower switch, 4, gas medium, 5, bellows.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
A kind of superconducting magnet thermal switch as shown in Figure 1, including set gradually upper switch 1, GAP TYPE air container 2 and under
Switch 3；The upper switch 1 is connected with refrigeration machine one-level cold head；The lower switch 3 is connected with superconducting magnet；The GAP TYPE storage
Gas container includes that gas receiver 2, the embedded bellows 5 being arranged on the barrel of gas receiver 2 and the gas being stored in gas receiver 2 are situated between
Matter 4.
Further, the gas medium 4 is any one in helium, nitrogen, neon, with excellent heat conduction system
Number.
Further, the gas receiver 2 is formed using the relatively low 316L non-magnetic rustproof Steel material processing and fabricatings of thermal conductivity factor.
Further, the bellows 5 uses stainless steel material, and the wall thickness of the bellows is 0.2mm.
Further, installing port is offered on the barrel of the gas receiver 2, the bellows 5 is arranged in installing port.It is preferred that
, it is separately installed with a bellows in the upper and lower ends of gas receiver.Bellows is installed by embedded on the barrel of gas receiver,
The heat conduction influence that the wall thickness of gas receiver is produced can not only be reduced, additionally it is possible to compensate the amount of contraction of material under low temperature.
Operation principle of the invention is：
In refrigeration machine cooling early stage, by thermal switch of the present invention one-level cold head cold is conducted into two grades of cold heads to cool down
Magnet.When magnet temperature is down to it is suitable with one-level cold head temperature when, heat-conducting gas inside thermal switch of the present invention with
The reduction of temperature and be gradually cooling to liquid or even solid state, Measurement of Gas Thermal Conductivity reduces with the reduction of gas pressure,
So that thermal switch of the present invention disconnects automatically, continue to cool down magnet to 4-5K merely with two grades of cold head colds.Work as refrigeration
The heat-conducting gas that machine has liquefied/solidified during rising again, in thermal switch of the present invention vapour with the rising of temperature
Change, recover to thermal conductivity factor state higher, conduction cooling effect of being taken the initiative again when start cooling next time improves refrigeration effect
Rate.Heat-conducting gas mentioned above is the gas medium of filling in gas receiver.In sum, the present invention can improve superconducting magnetic
The cooling effectiveness of body, on the basis of ensuring that superconducting magnet is detected under the low temperature environment of stabilization, reduces cool time, is superconduction
The popularization of magnet provides safeguard.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to model of the invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to technical side of the invention
Various modifications and improvement that case is made, all should fall into the protection domain of claims of the present invention determination.
Claims (5)
1. a kind of superconducting magnet thermal switch, it is characterised in that：Including set gradually upper switch, GAP TYPE air container and under
Switch；The upper switch is connected with refrigeration machine one-level cold head；The lower switch is connected with superconducting magnet；The GAP TYPE gas storage is held
Device includes gas receiver, the embedded bellows being arranged on gas receiver barrel and the gas medium being stored in gas receiver.
2. a kind of superconducting magnet thermal switch according to claim 1, it is characterised in that：The gas medium be helium,
Any one in nitrogen, neon.
3. a kind of superconducting magnet thermal switch according to claim 1, it is characterised in that：The gas receiver is used without magnetic not
Rust Steel material.
4. a kind of superconducting magnet thermal switch according to claim 1, it is characterised in that：The bellows uses stainless steel
Material, and the wall thickness of the bellows is 0.2mm.
5. a kind of superconducting magnet thermal switch according to claim 1, it is characterised in that：Opened up on the gas receiver barrel
There is installing port, the bellows is arranged in installing port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214485.XA CN106847463A (en) | 2016-12-26 | 2016-12-26 | A kind of superconducting magnet thermal switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214485.XA CN106847463A (en) | 2016-12-26 | 2016-12-26 | A kind of superconducting magnet thermal switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106847463A true CN106847463A (en) | 2017-06-13 |
Family
ID=59136482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611214485.XA Pending CN106847463A (en) | 2016-12-26 | 2016-12-26 | A kind of superconducting magnet thermal switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106847463A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724454A (en) * | 2017-10-31 | 2019-05-07 | 中南大学 | One kind being based on hydride GAP TYPE thermal switch and its application method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08128742A (en) * | 1994-10-28 | 1996-05-21 | Toshiba Corp | Extremely low temperature device |
| CN1580683A (en) * | 2003-08-06 | 2005-02-16 | 中国科学院电工研究所 | Low temperature heat tube for thermal switch |
| CN1991287A (en) * | 2005-12-27 | 2007-07-04 | 中国科学院电工研究所 | Thermal switch for conduction cooling superconducting magnet |
| CN101183591A (en) * | 2006-09-08 | 2008-05-21 | 通用电气公司 | Thermal switch used for superconducting magnet cooling system |
-
2016
- 2016-12-26 CN CN201611214485.XA patent/CN106847463A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08128742A (en) * | 1994-10-28 | 1996-05-21 | Toshiba Corp | Extremely low temperature device |
| CN1130250A (en) * | 1994-10-28 | 1996-09-04 | 东芝株式会社 | Extreme low temperature cooling device for extreme low temperature cooling the substance to be cooled |
| CN1580683A (en) * | 2003-08-06 | 2005-02-16 | 中国科学院电工研究所 | Low temperature heat tube for thermal switch |
| CN1991287A (en) * | 2005-12-27 | 2007-07-04 | 中国科学院电工研究所 | Thermal switch for conduction cooling superconducting magnet |
| CN101183591A (en) * | 2006-09-08 | 2008-05-21 | 通用电气公司 | Thermal switch used for superconducting magnet cooling system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724454A (en) * | 2017-10-31 | 2019-05-07 | 中南大学 | One kind being based on hydride GAP TYPE thermal switch and its application method |
| CN109724454B (en) * | 2017-10-31 | 2020-11-10 | 中南大学 | Hydride-based air gap type thermal switch and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |
|
| RJ01 | Rejection of invention patent application after publication |