CN203587746U - Superconducting terminal current lead test device - Google Patents
Superconducting terminal current lead test device Download PDFInfo
- Publication number
- CN203587746U CN203587746U CN201320762387.5U CN201320762387U CN203587746U CN 203587746 U CN203587746 U CN 203587746U CN 201320762387 U CN201320762387 U CN 201320762387U CN 203587746 U CN203587746 U CN 203587746U
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- China
- Prior art keywords
- liquid nitrogen
- test
- outer container
- current lead
- dewar
- 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.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 59
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 35
- 238000009826 distribution Methods 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 230000002045 lasting effect Effects 0.000 claims description 8
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004781 supercooling Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model is a superconducting terminal current lead test device which includes a test dewar and a supporting frame. The superconducting terminal current lead test device is characterized in that: the test dewar is used for providing a continuous supercooling liquid nitrogen environment and for a real-time monitoring of a current lead temperature distribution situation in an electrical test; the test dewar is a sealed container, wherein an outer container of the sealed container is internally provided with a liquid nitrogen jacket and an inner container; the liquid nitrogen jacket is arranged between the inner container and the outer container, and is connected with a surface of the outer container through a liquid nitrogen jacket transfusion valve; the inner container is a pressure container which is filled with a liquid nitrogen with a filling pressure of 1MPa and is connected to the surface of the outer container through an inner container transfusion valve; and the test dewar is also provided with a temperature sensor for liquid level detection. The superconducting terminal current lead test device provides the continuous supercooling liquid nitrogen environment, meet the test requirements, and can carry out the real-time monitoring of the liquid nitrogen liquid level and the temperature distribution of the current lead.
Description
Technical field
The utility model relates to a kind of current feed electric testing device, a kind of superconduction terminal current lead-in wire test unit is particularly disclosed, 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 purpose of this utility model 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 utility model 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 fixing 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 overall plastic-blasting, accomplishes that good looking appearance is generous.
The beneficial effects of the utility model are: the utility model 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 the utility model general assembly structural representation.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is that test Dewar A-A of the present utility model is to sectional structure schematic diagram.
Fig. 4 is the utility model 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 utility model 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 overall 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 fixing 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 each 10 times of ± 250kV 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 utility model 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. a 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 fixing 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 overall plastic-blasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320762387.5U CN203587746U (en) | 2013-11-28 | 2013-11-28 | Superconducting terminal current lead test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320762387.5U CN203587746U (en) | 2013-11-28 | 2013-11-28 | Superconducting terminal current lead test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203587746U true CN203587746U (en) | 2014-05-07 |
Family
ID=50585646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320762387.5U Expired - Lifetime CN203587746U (en) | 2013-11-28 | 2013-11-28 | Superconducting terminal current lead test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203587746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616623A (en) * | 2013-11-28 | 2014-03-05 | 上海三原电缆附件有限公司 | Superconductive terminal current lead testing device |
| CN106404108A (en) * | 2016-11-23 | 2017-02-15 | 西南交通大学 | Liquid nitrogen liquid level detection method and device |
-
2013
- 2013-11-28 CN CN201320762387.5U patent/CN203587746U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616623A (en) * | 2013-11-28 | 2014-03-05 | 上海三原电缆附件有限公司 | Superconductive terminal current lead testing device |
| CN106404108A (en) * | 2016-11-23 | 2017-02-15 | 西南交通大学 | Liquid nitrogen liquid level detection method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |