CN203025261U - Testing device for high-temperature supercurrent leads - Google Patents
Testing device for high-temperature supercurrent leads Download PDFInfo
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- CN203025261U CN203025261U CN 201220644431 CN201220644431U CN203025261U CN 203025261 U CN203025261 U CN 203025261U CN 201220644431 CN201220644431 CN 201220644431 CN 201220644431 U CN201220644431 U CN 201220644431U CN 203025261 U CN203025261 U CN 203025261U
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- temperature
- cold head
- lead wire
- superconductive lead
- vacuum
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Abstract
The utility model discloses a testing device for high-temperature supercurrent leads, which comprises a vacuum hood, wherein an extraction opening is formed in a side wall of the vacuum hood; a flange is arranged at the top of the vacuum hood; a lead core seat is arranged on the flange; room temperature terminal electrodes of a pair of high-temperature supercurrent leads are fixed on the flange; high-temperature ends and low-temperature ends of the high-temperature supercurrent leads stretch into the vacuum hood; the low-temperature ends of the two high-temperature supercurrent leads are short circuited; a primary cold head and a secondary cold head of a refrigerating machine stretch into the vacuum hood; the high-temperature ends of the two high-temperature supercurrent leads are coupled with the primary cold head; and the short-circuited low-temperature ends are coupled with the secondary cold head. The testing device is more reasonable in structure, light in mass, small in size, low in operating cost, and convenient to operate and maintain.
Description
Technical field
The utility model relates to superconducting line measurement mechanism field, is specially a kind of proving installation for high-temperature superconductive lead wire.
Background technology
Along with the widespread use in fields such as scientific research, military affairs of low-temperature superconducting technology, high-temperature superconductive lead wire is widely used in cryogenic magnet, the devices such as superconduction thermostat.The cold damage of high-temperature superconductive lead wire and current capacity are two important technical indicators.Therefore, being used for detecting high-temperature superconductive lead wire performance test device just arises at the historic moment.Traditional proving installation adopts liquid nitrogen and liquid helium, the temperature end of high-temperature superconducting lead and low-temperature end is put respectively be immersed in the mensuration of carrying out related data in liquid nitrogen and liquid helium.The defective of this method is: at first, need one and can store simultaneously the low-temperature (low temperature) vessel of liquid nitrogen and liquid helium, and guarantee that certain memory space, this low-temperature (low temperature) vessel often need customization, the general cooled cryostat of cost ratio is expensive.Secondly, for the larger current feed of current capacity, the cryogenic liquid consumption of once testing is larger, and cost compare is high.
The utility model content
The purpose of this utility model is to provide a kind of proving installation for high-temperature superconductive lead wire, the defective that exists to solve the prior art proving installation.
In order to achieve the above object, the technical scheme that adopts of the utility model is:
the proving installation that is used for high-temperature superconductive lead wire, include vacuum (-tight) housing, the vacuum (-tight) housing sidewall is provided with bleeding point, it is characterized in that: the vacuum (-tight) housing top is provided with the flange that consists of sealing with vacuum (-tight) housing, be provided with the lead-in wire core print seat on flange, the indoor temperature end electrode of tested a pair of high-temperature superconductive lead wire is fixed on flange, the temperature end of two high-temperature superconductive lead wires, low-temperature end stretches into vacuum (-tight) housing from the vacuum (-tight) housing top respectively, and the low-temperature end short circuit of two high-temperature superconductive lead wires, also include refrigeration machine, described refrigeration machine has the one-level cold head and is connected to the secondary cold head of one-level cold head bottom, the one-level cold head of refrigeration machine, the secondary cold head stretches in vacuum (-tight) housing from the vacuum (-tight) housing top respectively, the temperature end of two high-temperature superconductive lead wires is coupled with the one-level cold head respectively, low-temperature end after short circuit and the coupling of secondary cold head.
Described proving installation for high-temperature superconductive lead wire, it is characterized in that: the rigidity coupling respectively of the temperature end of described high-temperature superconductive lead wire and one-level cold head, low-temperature end and secondary cold head, or the temperature end of high-temperature superconductive lead wire and one-level cold head, low-temperature end and secondary cold head difference flexible couplings.
Described proving installation for high-temperature superconductive lead wire is characterized in that: described secondary cold head is covered with protective shield of radiation, and protective shield of radiation, one-level cold head outer wall are respectively arranged with the multilayer insulant layer.
Described proving installation for high-temperature superconductive lead wire is characterized in that: be lined with respectively the indium sheet with coupling place of high-temperature superconductive lead wire low-temperature end on described one-level cold head with on coupling place of high-temperature superconductive lead wire temperature end, secondary cold head.
Described proving installation for high-temperature superconductive lead wire is characterized in that: the indoor temperature end electrode of described high-temperature superconductive lead wire and flange junction are provided with the O RunddichtringO.
Described proving installation for high-temperature superconductive lead wire is characterized in that: be provided with respectively temperature sensor with one-level cold head, coupling place of secondary cold head on high-temperature superconductive lead wire.
The utility model adopts refrigeration machine instead of liquid nitrogen, liquid helium as low-temperature receiver, vacuum (-tight) housing instead of liquid nitrogen, liquid nitrogen container, and low-temperature receiver and tested a pair of high-temperature superconductive lead wire all are in vacuum state.During test, easy to operate, current feed quench risk reduces greatly.
The utility model more reasonable structure, the device quality is light, and volume is little, and operating cost is low, and convenient operation is safeguarded.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model flange vertical view.
Embodiment
As shown in Figure 1 and Figure 2.the proving installation that is used for high-temperature superconductive lead wire, include vacuum (-tight) housing 3, vacuum (-tight) housing 3 sidewalls are provided with bleeding point 4, vacuum (-tight) housing 3 tops are provided with the flange 2 that consists of sealing with vacuum (-tight) housing 3, be provided with lead-in wire core print seat 5 on flange 2, the indoor temperature end electrode 9 of tested a pair of high-temperature superconductive lead wire 6 is fixed on flange 2, the temperature end 7 of two high-temperature superconductive lead wires 6, low-temperature end 8 stretches into vacuum (-tight) housing 3 from vacuum (-tight) housing 3 tops respectively, and low-temperature end 8 short circuits of two high-temperature superconductive lead wires 6, also include refrigeration machine, refrigeration machine has one-level cold head 1 and is connected to the secondary cold head 10 of one-level cold head 1 bottom, the one-level cold head 1 of refrigeration machine, secondary cold head 10 stretches in vacuum (-tight) housing 3 from vacuum (-tight) housing 3 tops respectively, the temperature end 7 of two high-temperature superconductive lead wires 6 is coupled with one-level cold head 1 respectively, low-temperature end 8 after short circuit and 10 couplings of secondary cold head.
The temperature end 7 of high-temperature superconductive lead wire 6 is coupled by the web joint rigidity respectively with one-level cold head 1, low-temperature end 8 and secondary cold head 10, or the temperature end 7 of high-temperature superconductive lead wire 6 is passed through respectively the connecting band flexible couplings with one-level cold head 1, low-temperature end 8 with secondary cold head 10.
Secondary cold head 10 is covered with protective shield of radiation 11, and protective shield of radiation 11, one-level cold head 1 outer wall are respectively arranged with the multilayer insulant layer.
Be lined with respectively the indium sheet with high-temperature superconductive lead wire 6 low-temperature end 8 couplings place on one-level cold head 1 with on high-temperature superconductive lead wire 6 temperature end 7 couplings place, secondary cold head 10.
The indoor temperature end electrode 9 of high-temperature superconductive lead wire 6 is provided with the O RunddichtringO with flange 2 junctions.
Be provided with respectively temperature sensor with one-level cold head 1,10 couplings place of secondary cold head on high-temperature superconductive lead wire 6.
The utility model adopts 4.2K twin-stage Cryo Refrigerator as low-temperature receiver, the temperature end of high-temperature superconductive lead wire and the coupling of refrigeration machine one-level cold head, the secondary cold head coupling of low-temperature end and refrigeration machine, high-temperature superconductive lead wire indoor temperature end electrode are arranged on flange and the sealing of O type circle.Coupling scheme adopt rigidity coupling or flexible couplings usually according to the physical dimension of current feed.At corresponding test point mounting temperature sensor.The general paired use of high-temperature superconductive lead wire, during test with a pair of high-temperature superconductive lead wire low-temperature end short circuit, in order to consist of the loop when powering up.The flange that installs refrigeration machine cold head and high-temperature superconductive lead wire is placed on vacuum (-tight) housing together, and vacuum (-tight) housing is connected with bolt with flange, consists of closed container.Be provided with the lead-in wire core print seat on flange, be provided with vacuum pumping opening on vacuum (-tight) housing, obtain vacuum in vacuum (-tight) housing so that the environment of keeping low temperature to be provided.
Refrigeration machine is connected with flange bolt, on the I and II cold head, web joint is installed.The mounting hole that is provided with the lead-in wire core print seat on flange and passes for high-temperature superconductive lead wire.The indoor temperature end electrode of high-temperature superconductive lead wire is fixed on flange, and O encloses sealing, and temperature end and low-temperature end by the I and II cold head coupling of web joint or connecting band and refrigeration machine, adopt suitable fastening means respectively, and cushioning indium sheet is to improve heat transfer efficiency.With the low-temperature end of two high-temperature superconductive lead wires of low-temperature superconducting line short circuit, the correlative measurement pilot of high-temperature superconductive lead wire is arranged temperature sensor.The secondary cold head is outer should arrange protective shield of radiation, and cold is provided by the one-level cold head, and protective shield of radiation and one-level cold head arrange the multilayer insulant layer outward.Flange is positioned on vacuum (-tight) housing, by the bleeding point on vacuum (-tight) housing, vacuum (-tight) housing is evacuated to the 10Pa left and right.The cooling of unlatching refrigeration machine connects thermometric instrument by the lead-in wire core print seat and monitors and record related data.Draw corresponding cold damage by theoretical calculation formula.Power up the current capacity that to test high-temperature superconductive lead wire and power up cold damage in situation by high-temperature superconductive lead wire room temperature electrode.
Claims (6)
1. be used for the proving installation of high-temperature superconductive lead wire, include vacuum (-tight) housing, the vacuum (-tight) housing sidewall is provided with bleeding point, it is characterized in that: the vacuum (-tight) housing top is provided with the flange that consists of sealing with vacuum (-tight) housing, be provided with the lead-in wire core print seat on flange, the indoor temperature end electrode of tested a pair of high-temperature superconductive lead wire is fixed on flange, the temperature end of two high-temperature superconductive lead wires, low-temperature end stretches into vacuum (-tight) housing from the vacuum (-tight) housing top respectively, and the low-temperature end short circuit of two high-temperature superconductive lead wires, also include refrigeration machine, described refrigeration machine has the one-level cold head and is connected to the secondary cold head of one-level cold head bottom, the one-level cold head of refrigeration machine, the secondary cold head stretches in vacuum (-tight) housing from the vacuum (-tight) housing top respectively, the temperature end of two high-temperature superconductive lead wires is coupled with the one-level cold head respectively, low-temperature end after short circuit and the coupling of secondary cold head.
2. the proving installation for high-temperature superconductive lead wire according to claim 1, it is characterized in that: the rigidity coupling respectively of the temperature end of described high-temperature superconductive lead wire and one-level cold head, low-temperature end and secondary cold head, or the temperature end of high-temperature superconductive lead wire and one-level cold head, low-temperature end and secondary cold head difference flexible couplings.
3. the proving installation for high-temperature superconductive lead wire according to claim 1, it is characterized in that: described secondary cold head is covered with protective shield of radiation, and protective shield of radiation, one-level cold head outer wall are respectively arranged with the multilayer insulant layer.
4. the proving installation for high-temperature superconductive lead wire according to claim 1, is characterized in that: be lined with respectively the indium sheet with coupling place of high-temperature superconductive lead wire low-temperature end on described one-level cold head with on coupling place of high-temperature superconductive lead wire temperature end, secondary cold head.
5. the proving installation for high-temperature superconductive lead wire according to claim 1 is characterized in that: the indoor temperature end electrode of described high-temperature superconductive lead wire and flange junction are provided with the O RunddichtringO.
6. the proving installation for high-temperature superconductive lead wire according to claim 1, is characterized in that: be provided with respectively temperature sensor with one-level cold head, coupling place of secondary cold head on high-temperature superconductive lead wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220644431 CN203025261U (en) | 2012-11-29 | 2012-11-29 | Testing device for high-temperature supercurrent leads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220644431 CN203025261U (en) | 2012-11-29 | 2012-11-29 | Testing device for high-temperature supercurrent leads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203025261U true CN203025261U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220644431 Expired - Fee Related CN203025261U (en) | 2012-11-29 | 2012-11-29 | Testing device for high-temperature supercurrent leads |
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| CN (1) | CN203025261U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998566A (en) * | 2012-11-29 | 2013-03-27 | 安徽万瑞冷电科技有限公司 | Test device for high temperature superconduction current leading wire |
| CN104133112A (en) * | 2014-07-14 | 2014-11-05 | 西安交通大学 | Vacuum high-temperature conductivity measuring device and vacuum high-temperature conductivity measuring method |
| CN110161401A (en) * | 2019-06-05 | 2019-08-23 | 中国科学院理化技术研究所 | A kind of superconduction chip low temperature test device |
-
2012
- 2012-11-29 CN CN 201220644431 patent/CN203025261U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998566A (en) * | 2012-11-29 | 2013-03-27 | 安徽万瑞冷电科技有限公司 | Test device for high temperature superconduction current leading wire |
| CN102998566B (en) * | 2012-11-29 | 2015-05-20 | 安徽万瑞冷电科技有限公司 | Test device for high temperature superconduction current leading wire |
| CN104133112A (en) * | 2014-07-14 | 2014-11-05 | 西安交通大学 | Vacuum high-temperature conductivity measuring device and vacuum high-temperature conductivity measuring method |
| CN110161401A (en) * | 2019-06-05 | 2019-08-23 | 中国科学院理化技术研究所 | A kind of superconduction chip low temperature test device |
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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: 20130626 Termination date: 20151129 |