CN103616623A - Superconductive terminal current lead testing device - Google Patents
Superconductive terminal current lead testing device Download PDFInfo
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- CN103616623A CN103616623A CN201310614702.4A CN201310614702A CN103616623A CN 103616623 A CN103616623 A CN 103616623A CN 201310614702 A CN201310614702 A CN 201310614702A CN 103616623 A CN103616623 A CN 103616623A
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- liquid nitrogen
- outer container
- current lead
- dewar
- terminal current
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Abstract
The invention provides a superconductive terminal current lead testing device which comprises a testing Dewar and a support. The superconductive terminal current lead testing device is characterized in that the testing Dewar is used for providing a continuous supercooling liquid nitrogen environment and monitoring the temperature distribution condition of a current lead in real time, the testing Dewar is a sealed container wither a liquid nitrogen jacket and an inner container arranged in an outer container, the liquid nitrogen jacket is located between the inner container and the outer container and connected with the surface of the outer container through a liquid nitrogen jacket transfusion valve, the inner container is a pressure container which is filled with liquid nitrogen with the pressure of 1 Mpa, and the inner container is connected with the surface of the outer container through an inner container transfusion valve. The testing Dewar is further provided with a temperature sensor used for liquid level detection. The testing device provides the continuous supercooling liquid nitrogen environment, meets test requirements, and can monitor the liquid nitrogen level and the temperature distribution condition of the current lead in real time.
Description
Technical field
The present invention relates to a kind of current feed electric testing device, particularly disclose a kind of superconduction terminal current lead-in wire test unit, be applicable to provide a lasting overfreezing liquid nitrogen environment when carrying out electrical test, and the Temperature Distribution situation of Real-Time Monitoring current feed.
Background technology
Common current feed without cold liquid nitrogen environment was provided, only needs a suitable pressure vessel just can when carrying out electrical test.But superconduction terminal current lead-in wire not only needs to provide a lasting overfreezing liquid nitrogen environment but also not only can carry out electrical test simultaneously but also Temperature Distribution situation that can also Real-Time Monitoring current feed.Such device is at present domestic does not also have producer to design and produced, and can not meet the need of market.
Summary of the invention
The object of the invention is to design a kind of superconduction terminal current lead-in wire test unit for the electrical test that superconduction terminal current draws, a lasting overfreezing liquid nitrogen environment can not only be provided, and can meet the electrical test requirement of this voltage levels, Temperature Distribution situation that simultaneously can also Real-Time Monitoring current feed.
The present invention is achieved in that a kind of superconduction terminal current lead-in wire test unit, comprise test Dewar and bracing frame, it is characterized in that: described test Dewar is for providing a lasting overfreezing liquid nitrogen environment and Real-Time Monitoring current feed Temperature Distribution situation when electrical test, described test Dewar is an airtight container that is provided with liquid nitrogen chuck and inner pressurd vessel in outer container, described liquid nitrogen chuck is located between inner pressurd vessel and outer container, and be connected with outer container surface by a liquid nitrogen chuck fluid-delivery valve, described inner pressurd vessel is pressure vessel, the liquid nitrogen that in it, stowing pressure is 1MPa, by an inner pressurd vessel fluid-delivery valve, be connected with outer container surface, described test Dewar is also provided with the temperature sensor for level detection.Described inner pressurd vessel internal diameter is 290mm, wall thickness 4mm, the cylindrical shell external diameter of liquid nitrogen chuck is 350mm, wall thickness 2mm, the external diameter of outer container is 400mm, wall thickness 3mm, three all adopts 0Cr18Ni9 alloy steel to make, and wherein inner pressurd vessel is according to design of pressure vessels, manufacture, check and examination, with the security that guarantees to use.On the outer container of described test Dewar, be provided with the tensimeter of reflection inner pressurd vessel internal pressure.In described outer container bottom, be provided with bottom plug, the fixedly otic placode security component that the outer wall of outer container is provided with hanger and is connected with bracing frame.Described bracing frame is the position erecting frame of test Dewar, is also carrying transportation support, adopts the welding of 60mm * 60mm * 3mm stainless steel rectangular pipe to form, and whole plastic-blasting, accomplishes that good looking appearance is generous.
The invention has the beneficial effects as follows: the present invention can provide a lasting overfreezing liquid nitrogen environment for the electrical test of superconduction terminal current lead-in wire, can meet and carry out that office puts, withstand voltage and lightning impulse electrical test, and can the liquid level of Real-Time Monitoring liquid nitrogen and the Temperature Distribution situation of current feed.
Accompanying drawing explanation
Fig. 1 is general assembly structural representation of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is that test Dewar A-A of the present invention is to sectional structure schematic diagram.
Fig. 4 is the present invention and superconduction terminal current lead-in wire connection diagram.
In figure: 1, test Dewar; 2, bracing frame; 3, outer container; 4, liquid nitrogen chuck; 5, inner pressurd vessel; 6, liquid nitrogen chuck fluid-delivery valve; 7, inner pressurd vessel fluid-delivery valve; 8, temperature sensor; 9, bottom plug; 10, hanger; 11, fixing otic placode security component; 12, superconduction terminal current lead-in wire.
Embodiment
With reference to the accompanying drawings 1 and accompanying drawing 2, a kind of superconduction terminal current lead-in wire of the present invention test unit, comprises test Dewar 1 and bracing frame 2.Test Dewar 1 for a lasting overfreezing liquid nitrogen environment is provided and when the electrical test Real-Time Monitoring current feed Temperature Distribution situation, bracing frame 2 is the position erecting frame of test Dewar 1, is also carrying transportation support.Bracing frame 2 adopts the welding of 60mm * 60mm * 3mm stainless steel rectangular pipe to form, and whole plastic-blasting, accomplishes that good looking appearance is generous.For convenience of mobile, frame bottom also can arrange some universal wheels or pulley.
With reference to the accompanying drawings 1 and accompanying drawing 3, test Dewar 1 is an airtight container that is provided with liquid nitrogen chuck 4 and inner pressurd vessel 5 in outer container 3.Liquid nitrogen chuck 4 is located between inner pressurd vessel 5 and outer container 3, and is connected with the surface of outer container 1 by a liquid nitrogen chuck fluid-delivery valve 6.Inner pressurd vessel 5 is pressure vessel, and the liquid nitrogen that in it, stowing pressure is 1MPa is connected with outer container 1 surface by an inner pressurd vessel fluid-delivery valve 7.The Measurement accuracy of the Temperature Distribution of current feed plays a vital effect for optimizing current feed, so test Dewar 1 is also provided with the temperature sensor 8 for level detection.Inner pressurd vessel 5 internal diameters are 290mm, wall thickness 4mm, the cylindrical shell external diameter of liquid nitrogen chuck 4 is 350mm, wall thickness 2mm, the external diameter of outer container 3 is 400mm, wall thickness 3mm, three all adopts 0Cr18Ni9 alloy steel to make, and wherein inner pressurd vessel 5 is according to design of pressure vessels, manufacture, check and examination, with the security that guarantees to use.On the outer container 3 of test Dewar 1, be provided with the tensimeter of reflection inner pressurd vessel 5 internal pressures.In outer container 3 bottoms, be provided with bottom plug 9, the fixedly otic placode security component 11 that the outer wall of outer container 3 is provided with hanger 10 and is connected with bracing frame 2.
With reference to the accompanying drawings 4, during test, first superconduction terminal current lead-in wire 12 is connected on and starts again to carry out that office puts, withstand voltage and lightning impulse test behind the top of test Dewar 1.Conventionally local discharge test be under 45kV without visible office put, withstand voltage test for 117kV, 5 minutes without puncture without flashover, lightning impulse test for after ± 250kV each 10 times without puncture without flashover, be qualified.
Superconduction terminal current lead-in wire need be tested and could be obtained specification product by related electric, the electrical test that the present invention is superconduction terminal current lead-in wire provides a lasting overfreezing liquid nitrogen environment, met and carried out that office puts, the requirement of withstand voltage and lightning impulse electrical test, can also the liquid level of Real-Time Monitoring liquid nitrogen and the Temperature Distribution situation of current feed.
Claims (5)
1. superconduction terminal current lead-in wire test unit, comprise test Dewar and bracing frame, it is characterized in that: described test Dewar is for providing a lasting overfreezing liquid nitrogen environment and Real-Time Monitoring current feed Temperature Distribution situation when electrical test, described test Dewar is an airtight container that is provided with liquid nitrogen chuck and inner pressurd vessel in outer container, described liquid nitrogen chuck is located between inner pressurd vessel and outer container, and be connected with outer container surface by a liquid nitrogen chuck fluid-delivery valve, described inner pressurd vessel is pressure vessel, the liquid nitrogen that in it, stowing pressure is 1MPa, by an inner pressurd vessel fluid-delivery valve, be connected with outer container surface, described test Dewar is also provided with the temperature sensor for level detection.
2. according to the superconduction terminal current lead-in wire test unit described in claim 1, it is characterized in that: described inner pressurd vessel internal diameter is 290mm, wall thickness 4mm, the cylindrical shell external diameter of liquid nitrogen chuck is 350mm, wall thickness 2mm, the external diameter of outer container is 400mm, wall thickness 3mm, three all adopts 0Cr18Ni9 alloy steel to make.
3. according to the superconduction terminal current lead-in wire test unit described in claim 1 or 2, it is characterized in that: the tensimeter that is provided with reflection inner pressurd vessel internal pressure on the outer container of described test Dewar.
4. according to the superconduction terminal current lead-in wire test unit described in claim 1, it is characterized in that: in described outer container bottom, be provided with bottom plug, the fixedly otic placode security component that the outer wall of outer container is provided with hanger and is connected with bracing frame.
5. according to the superconduction terminal current lead-in wire test unit described in claim 4, it is characterized in that: described bracing frame is the position erecting frame of test Dewar, also be carrying transportation support, adopt the welding of 60mm * 60mm * 3mm stainless steel rectangular pipe to form, and whole plastic-blasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310614702.4A CN103616623A (en) | 2013-11-28 | 2013-11-28 | Superconductive terminal current lead testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310614702.4A CN103616623A (en) | 2013-11-28 | 2013-11-28 | Superconductive terminal current lead testing device |
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| CN103616623A true CN103616623A (en) | 2014-03-05 |
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| CN201310614702.4A Pending CN103616623A (en) | 2013-11-28 | 2013-11-28 | Superconductive terminal current lead testing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885010A (en) * | 2014-04-16 | 2014-06-25 | 中国科学院半导体研究所 | SQUID sealing cavity system for magnetic and electrical property synchronous measurement |
| CN104635125A (en) * | 2015-01-22 | 2015-05-20 | 国家电网公司 | Superconduction current lead voltage withstanding test system |
| CN108237377A (en) * | 2018-01-15 | 2018-07-03 | 北京市朝阳区长安机电技术研究所 | Infrared cooling liquid nitrogen metal Dewar bottle production technology |
| CN112798893A (en) * | 2021-01-19 | 2021-05-14 | 中天集团上海超导技术有限公司 | Superconducting cable short sample test platform |
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| JPH0955545A (en) * | 1994-11-25 | 1997-02-25 | Fuji Electric Co Ltd | Current lead for superconductive apparatus |
| JP3120482B2 (en) * | 1991-08-16 | 2000-12-25 | 富士電機株式会社 | Current lead of superconducting magnet device |
| CN101446609A (en) * | 2008-11-25 | 2009-06-03 | 中国电力科学研究院 | Measurement device of critical current properties of high-temperature superconducting tape |
| CN203587746U (en) * | 2013-11-28 | 2014-05-07 | 上海三原电缆附件有限公司 | Superconducting terminal current lead test device |
-
2013
- 2013-11-28 CN CN201310614702.4A patent/CN103616623A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3120482B2 (en) * | 1991-08-16 | 2000-12-25 | 富士電機株式会社 | Current lead of superconducting magnet device |
| JPH0955545A (en) * | 1994-11-25 | 1997-02-25 | Fuji Electric Co Ltd | Current lead for superconductive apparatus |
| CN101446609A (en) * | 2008-11-25 | 2009-06-03 | 中国电力科学研究院 | Measurement device of critical current properties of high-temperature superconducting tape |
| CN203587746U (en) * | 2013-11-28 | 2014-05-07 | 上海三原电缆附件有限公司 | Superconducting terminal current lead test device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885010A (en) * | 2014-04-16 | 2014-06-25 | 中国科学院半导体研究所 | SQUID sealing cavity system for magnetic and electrical property synchronous measurement |
| CN103885010B (en) * | 2014-04-16 | 2016-04-13 | 中国科学院半导体研究所 | For the SQUID annular seal space system of magnetics and electrical properties synchro measure |
| CN104635125A (en) * | 2015-01-22 | 2015-05-20 | 国家电网公司 | Superconduction current lead voltage withstanding test system |
| CN108237377A (en) * | 2018-01-15 | 2018-07-03 | 北京市朝阳区长安机电技术研究所 | Infrared cooling liquid nitrogen metal Dewar bottle production technology |
| CN112798893A (en) * | 2021-01-19 | 2021-05-14 | 中天集团上海超导技术有限公司 | Superconducting cable short sample test platform |
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Application publication date: 20140305 |