CN206920529U - The current-carring characteristic test device of high-temperature superconductor band - Google Patents
The current-carring characteristic test device of high-temperature superconductor band Download PDFInfo
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- CN206920529U CN206920529U CN201720513313.6U CN201720513313U CN206920529U CN 206920529 U CN206920529 U CN 206920529U CN 201720513313 U CN201720513313 U CN 201720513313U CN 206920529 U CN206920529 U CN 206920529U
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- temperature superconductor
- superconductor band
- liquefied nitrogen
- threaded rod
- dewar container
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Abstract
A kind of current-carring characteristic test device of high-temperature superconductor band, its main composition are that two relative semicircular guide grooves are provided with the top of Dewar container for liquefied nitrogen, in copper threaded rod insertion guide groove, and are hung on by nut in Dewar container for liquefied nitrogen；The top of threaded rod is connected with DC source；The guide hole of threaded rod bottom is movably combined in the guide rail of annular shape；The end of high-temperature superconductor band is welded on the lower end of threaded rod；The lead of nanovoltmeter is then welded on the non-end position of high-temperature superconductor band；In the lift span of lifting screw insertion Dewar container for liquefied nitrogen top center, and hung on by lifting nut in Dewar container for liquefied nitrogen；With being fixedly connected at the top of the electromagnet of inverted U, the bottom of electromagnet is fixedly connected with guide rail for the bottom of lifting screw；Stair-stepping half round platform of two multistages is fixed on the bottom of Dewar container for liquefied nitrogen, and the arc surface of two and half round platforms is relative.The utility model can measure the change of high-temperature superconductor band critical current under different magnetic field and differently curved radius.
Description
Technical field
It the utility model is related to a kind of current-carring characteristic test device of high-temperature superconductor band.
Background technology
With the continuous lifting of high-temperature superconductor band performance, high-temperature superconductor band starts in hyperconductive cable, superconducting energy storage dress
Put, superconducting transformer, run in the various superconducting devices such as superconductive current limiter.The superconducting tape used in these superconducting devices is often
Case of bending can be in, with the difference of bending radius, different bending strain can be produced, and then to the load of high-temperature superconductor band
Stream ability (critical current) causes large effect.For Y based high-temperature superconductive strips, it is a kind of coating conductor, and superconducting layer is not
On the Central Symmetry position of band, when superconducting layer is close to flexural center and when superconducting layer deviates from flexural center, to high-temperature superconductor
The influence of the current capacity of band is also different.
Superconducting device especially superconducting transformer in use, can have certain leakage field phenomenon, this outside magnetic
Field will also result in influence to the current capacity of superconducting device, make the reduction of its critical current, so as to influence the normal fortune of superconducting device
OK.
To reduce so that avoiding bending and external magnetic field to the performance impact of superconducting device, it is necessary to under differently curved radius
And the current capacity of the high-temperature superconductor band under different magnetic field is tested, so as to be the superconduction using bending high-temperature superconductor band
The design and processing of device provide test basis.
The current capacity test device of existing high-temperature superconductor band, differently curved radius can only be measured to hts band
The influence of the current capacity of material；Testing background magnetic field and the collective effect of bending are unable to, to the current capacity of high-temperature superconductor band
Influence；And when bending the influence to the current capacity of high-temperature superconductor band, a kind of bending radius can only be once measured, is obtained
Go out a critical electric current value.And test the critical electric current value corresponding to next bending radius, then cooled cryostat is switched on, will
High-temperature superconductor band takes out, and high-temperature superconductor band is bent to the radius of next setting again, then be reentered into cooled cryostat
In, tested next time.High-temperature superconductor band is brought rapidly up when taking-up is bent again, is put into cooled cryostat again and drops rapidly
Temperature, the abrupt change of temperature, the residual temperature strain of influence current capacity can be formed in high-temperature superconductor band, also results in test
As a result inaccuracy, error are big.
Utility model content
First purpose of the present utility model is to provide a kind of critical current of high-temperature superconductor band under magnetic field in bending strain
Under test device, the device can measure the change of high-temperature superconductor band critical current under different magnetic field and differently curved radius
Change, so as to which the design for high-temperature superconductor kicker magnet or transformer and manufacture provide more reliable experimental basis.
Technical scheme is used by the utility model realizes its goal of the invention：A kind of current-carring characteristic of high-temperature superconductor band
High-temperature superconductor band in test device, including Dewar container for liquefied nitrogen, Dewar container for liquefied nitrogen, the DC source being connected with high-temperature superconductor band and receives
Lie prostrate table, it is characterised in that：
Two relative semicircular guide grooves, copper threaded rod insertion guide groove are provided with the top of described Dewar container for liquefied nitrogen
In, and the nut connected by its top is hung in Dewar container for liquefied nitrogen；The top of threaded rod is connected with DC source；Threaded rod passes through
The guide hole of its underpart is movably combined on the rail body of the guide rail of annular shape；Described guide rail is made up of nonconducting fiberglass；It is high
The end of temperature superconductive band is welded on the lower end of threaded rod；The lead of nanovoltmeter is then welded on the non-end position of high-temperature superconductor band
Put；
In the lift span of lifting screw insertion Dewar container for liquefied nitrogen top center, and the lifting nut connected by its top is hung
In Dewar container for liquefied nitrogen；The bottom of lifting screw with being fixedly connected at the top of the electromagnet of inverted U, the bottom of electromagnet and guide rail
Rail body is fixedly connected；
Stair-stepping half round platform of two multistages is fixed on the bottom of Dewar container for liquefied nitrogen, and the arc surface of two and half round platforms is relative.
Further, the current-carring characteristic test device of a kind of high-temperature superconductor band of the present utility model, it is characterised in that described
Lifting nut be provided with the scale that is matched with the ladder height of half round platform.
The course of work and application method of the present utility model are：
A, liquid nitrogen is injected into Dewar container for liquefied nitrogen, until high-temperature superconductor band is completely immersed in liquid nitrogen；
B, the nut and lifting nut of two threaded rods connection are rotated, makes two threaded rods, lifting screw and its connected
Electromagnet, lower guideway are in the height of setting；And two threaded rods and its high-temperature superconductor band of lower end welding is set to be in straight
Position；
C, the electric current of setting is passed to electromagnet, it is produced constant or alternation the background magnetic field of setting；
D, passed to by DC source to high-temperature superconductor band from as low as big direct current, when the voltage that nanovoltmeter is measured reaches
During 1 μ V/cm, the DC current values passed through to high-temperature superconductor band are recorded, that is, measure facing for high-temperature superconductor band under conditions present
Boundary's current value；
E, direction of two threaded rods along guide groove to high-temperature superconductor band superconducting layer is slided, makes what threaded rod lower end was welded
High-temperature superconductor band is bonded completely with the semicircle ladder of the respective radius on multistage stair-stepping half round platform；
Repeat step D operation, measure high-temperature superconductor band and corresponded to when superconducting layer is close to flexural center under bending radius
Critical electric current value；
F, two threaded rods and its high-temperature superconductor band are return back to straight position；
Repeat step D operation, measure the critical electric current value that straightened condition is returned to after high-temperature superconductor band is bent；
G, two threaded rods are subjected to reverse slide along guide groove to step E, the hts band for welding threaded rod lower end
Material is bonded round platform completely with the semicircle ladder of the respective radius on stair-stepping half round platform of another multistage；
Repeat step D operation；Measure high-temperature superconductor band and constantly correspond to bending radius away from flexural center in superconducting layer
Under critical electric current value.
Compared with prior art, the beneficial effects of the utility model are：
First, the utility model passes to different electric currents by the electromagnet into Dewar, makes differently curved strain to be measured
Under high-temperature superconductor band be in corresponding constant or alternation background magnetic field；So as to measure under different background magnetic field
High-temperature superconductor band corresponds to the critical electric current value of differently curved strain.Solve prior art and be unable to testing background magnetic field and bending
Influence of the collective effect to high-temperature superconductor band current capacity the problem of.
2nd, the utility model is realized to hts band by the cooperation of lifting nut and lifting screw and threaded rod
Precision lift of the material in liquid nitrogen environment；In the slip by screw rod, make high-temperature superconductor band and the round platform of different respective radius
The complete fitting of rank, it is achieved thereby that the bending operation of high-temperature superconductor band different radii；Differently curved radius can directly be measured
The critical electric current value of high-temperature superconductor band under (bending strain).And by the reverse slide of screw rod, realize when superconducting layer leans on
The continuous measurement of critical electric current value during nearly flexural center and when superconducting layer deviates from flexural center not chaotropic nitrogen environment.Avoid existing
Some devices are measuring different radii, differently curved direction, are required to high-temperature superconductor band taking out liquid nitrogen environment, reinstall
Caused by the strain of the remaining temperature difference and misoperation, the influence of the bending strain to high-temperature superconductor band, its test result it is more accurate
Really, error is small.
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the main structure diagram of the utility model embodiment.
Fig. 2 is the left view structural representation of the utility model embodiment.
Fig. 3 is the overlooking the structure diagram of the utility model embodiment.
Specific implementation method
Embodiment
Fig. 1-3 shows that a kind of embodiment of the present utility model is that a kind of current-carring characteristic of high-temperature superconductor band is surveyed
Trial assembly is put, including the high-temperature superconductor band 4 in Dewar container for liquefied nitrogen 3, Dewar container for liquefied nitrogen 3, the DC source being connected with high-temperature superconductor band 4 and
Nanovoltmeter, it is characterised in that：
The top of described Dewar container for liquefied nitrogen 3 is provided with the semicircular guide groove 10 of relative two, is inserted with each guide groove 10
Copper threaded rod 1, threaded rod 1 share two；The nut 2 of described its top of threaded rod 1 connection hangs on Dewar container for liquefied nitrogen 3
In, and the top of threaded rod 1 is connected with DC source；Threaded rod 1 is movably combined in the guide rail 5 of annular shape by the guide hole of its underpart
On；Described guide rail 5 is made up of nonconducting fiberglass；The end of high-temperature superconductor band 4 is welded on the lower end of threaded rod 1；Receive
The lead of volt table is then welded on the non-end position of high-temperature superconductor band 4；
Lifting screw 6 is inserted in the lift span of the top center of Dewar container for liquefied nitrogen 3, and the lifting nut 7 connected by its top
Hang in Dewar container for liquefied nitrogen 3；The bottom of lifting screw 6 is fixedly connected with the top of the electromagnet 8 of inverted U, the bottom of electromagnet 8
It is fixedly connected with guide rail 5；
Stair-stepping half round platform 9 of two multistages is fixed on the bottom of Dewar container for liquefied nitrogen 3, and the arc surface phase of two and half round platforms 9
It is right.
The lifting nut 7 of this example is provided with the scale matched with the ladder height of half round platform 9.
It is curved that a kind of current-carring characteristic test device of the high-temperature superconductor band of this example carries out high-temperature superconductor band under external magnetic field
The method of testing of curved strain, its operation are：
A, liquid nitrogen is injected into Dewar container for liquefied nitrogen 3, until high-temperature superconductor band 4 is completely immersed in liquid nitrogen；
B, nut 2 and lifting nut 7 that two threaded rods 1 connect are rotated, makes two threaded rods 1, lifting screw 6 and its phase
Electromagnet 8 even, lower guideway 5 are in the height of setting；And make two threaded rods 1 and its high-temperature superconductor band 4 of lower end welding
In straight position；
C, the electric current of setting is passed to electromagnet 8, it is produced constant or alternation the background magnetic field of setting；
D, passed to by DC source to high-temperature superconductor band 4 from as low as big direct current, when the voltage that nanovoltmeter is measured reaches
During to 1 μ V/cm, the DC current values passed through to high-temperature superconductor band 4 are recorded, that is, measure high-temperature superconductor band under conditions present
Critical electric current value；
E, direction of two threaded rods 1 along guide groove 10 to high-temperature superconductor band superconducting layer is slided, welds the lower end of threaded rod 1
The high-temperature superconductor band 4 connect is bonded completely with the semicircle ladder of the respective radius on multistage stair-stepping half round platform 9；
Repeat step D operation, measure high-temperature superconductor band and corresponded to when superconducting layer is close to flexural center under bending radius
Critical electric current value；
F, two threaded rods 1 and its high-temperature superconductor band (4) are return back to straight position；
Repeat step D operation, measure the critical electric current value that straightened condition is returned to after high-temperature superconductor band is bent；
G, two threaded rods 1 are subjected to reverse slide along guide groove 10 to step E, surpass the high temperature that the lower end of threaded rod 1 is welded
Conduction band material 4 is bonded round platform completely with the semicircle ladder of the respective radius on stair-stepping half round platform 9 of another multistage；
Repeat step D operation；Measure high-temperature superconductor band and constantly correspond to bending radius away from flexural center in superconducting layer
Under critical electric current value.
Claims (2)
- A kind of 1. high temperature in current-carring characteristic test device of high-temperature superconductor band, including Dewar container for liquefied nitrogen (3), Dewar container for liquefied nitrogen (3) Superconducting tape (4), the DC source and nanovoltmeter being connected with high-temperature superconductor band (4), it is characterised in that：The semicircular guide groove (10) of relative two is provided with the top of described Dewar container for liquefied nitrogen (3), is inserted in each guide groove (10) There is copper threaded rod (1), threaded rod (1) shares two；The nut (2) of described threaded rod (1) its top connection is hung on In Dewar container for liquefied nitrogen (3), and the top of threaded rod (1) is connected with DC source；The guide hole activity fit that threaded rod (1) passes through its underpart On the guide rail (5) of annular shape；Described guide rail (5) is made up of nonconducting fiberglass；The end weldering of high-temperature superconductor band (4) It is connected on the lower end of threaded rod (1)；The lead of nanovoltmeter is then welded on the non-end position of high-temperature superconductor band (4)；In the lift span of lifting screw (6) insertion Dewar container for liquefied nitrogen (3) top center, and the lifting nut connected by its top (7) hang in Dewar container for liquefied nitrogen (3)；The bottom of lifting screw (6) at the top of the electromagnet (8) of inverted U with being fixedly connected, electromagnetism The bottom of iron (8) is fixedly connected with guide rail (5)；Stair-stepping half round platform (9) of two multistages is fixed on the bottom of Dewar container for liquefied nitrogen (3), and the arc surface of two and half round platforms (9) Relatively.
- 2. the current-carring characteristic test device of a kind of high-temperature superconductor band according to claim 1, it is characterised in that described Lifting nut (7) is provided with the scale matched with the ladder height of half round platform (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513313.6U CN206920529U (en) | 2017-05-10 | 2017-05-10 | The current-carring characteristic test device of high-temperature superconductor band |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513313.6U CN206920529U (en) | 2017-05-10 | 2017-05-10 | The current-carring characteristic test device of high-temperature superconductor band |
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| CN206920529U true CN206920529U (en) | 2018-01-23 |
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| CN201720513313.6U Expired - Fee Related CN206920529U (en) | 2017-05-10 | 2017-05-10 | The current-carring characteristic test device of high-temperature superconductor band |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167681A (en) * | 2017-05-10 | 2017-09-15 | 西南交通大学 | The current-carring characteristic test device and method of testing of a kind of high-temperature superconductor band |
| CN108957040A (en) * | 2018-07-04 | 2018-12-07 | 中国科学院合肥物质科学研究院 | A kind of differently curved radius critical current test sample bar of iron-based superconducting material |
| CN116500440A (en) * | 2023-06-29 | 2023-07-28 | 华北电力大学（保定） | High-temperature superconductive winding current-carrying characteristic and alternating current loss testing device |
-
2017
- 2017-05-10 CN CN201720513313.6U patent/CN206920529U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167681A (en) * | 2017-05-10 | 2017-09-15 | 西南交通大学 | The current-carring characteristic test device and method of testing of a kind of high-temperature superconductor band |
| CN107167681B (en) * | 2017-05-10 | 2023-05-05 | 西南交通大学 | Current-carrying characteristic testing device and method for high-temperature superconducting strip |
| CN108957040A (en) * | 2018-07-04 | 2018-12-07 | 中国科学院合肥物质科学研究院 | A kind of differently curved radius critical current test sample bar of iron-based superconducting material |
| CN116500440A (en) * | 2023-06-29 | 2023-07-28 | 华北电力大学（保定） | High-temperature superconductive winding current-carrying characteristic and alternating current loss testing device |
| CN116500440B (en) * | 2023-06-29 | 2023-09-08 | 华北电力大学（保定） | High-temperature superconductive winding current-carrying characteristic and alternating current loss testing device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 Termination date: 20200510 |
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| CF01 | Termination of patent right due to non-payment of annual fee |