CN103413645B - A kind of separate type primary current lead device - Google Patents
A kind of separate type primary current lead device Download PDFInfo
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- CN103413645B CN103413645B CN201310347130.8A CN201310347130A CN103413645B CN 103413645 B CN103413645 B CN 103413645B CN 201310347130 A CN201310347130 A CN 201310347130A CN 103413645 B CN103413645 B CN 103413645B
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Abstract
A kind of separate type primary current lead device, comprises primary current lead body (1) and axial displacement regulator (2).Described axial displacement regulator (2) is fixed on the upper cover plate of vacuum tank (3), the temperature end of primary current lead body (1) is fixed in axial displacement regulator (2), and the low-temperature end of primary current lead body (1) is fixed on the upper cover plate of cold screen (4).Primary current lead body (1) forms the passage of external power to superconducting magnet (5) conveying capacity together with high-temperature superconductive lead wire (6).
Description
Technical field
The present invention relates to the primary current lead device of superconducting magnet system, particularly a kind of primary current lead for conduction cooling superconducting magnet.
Background technology
In the later stage nineties 20th century, conduction cooling superconducting magnet technical development is rapid, has gradually and replaces the gesture that liquid helium soaks superconducting magnet.Conduction cooling superconducting magnet system is primarily of compositions such as superconducting magnet, G-M refrigeration machine, vacuum tank, cold screen, current feed, power supply for magnet coils and control assemblies.Soak superconducting magnet system with traditional liquid helium to compare, conduction cooling superconducting magnet does not use liquid helium to cool, but uses secondary G-M refrigeration machine to cool superconducting magnet as low-temperature receiver.Because whole superconducting magnet adopts single low-temperature receiver by heat exchange pattern cooling, therefore connect between superconducting magnet all parts and want closely, heat conduction is very good.In addition the refrigeration work consumption of G-M refrigeration machine is limited, as the refrigeration machine of SHI-SRDK415D model, be 35W during one-level cold head refrigeration work consumption 50K, during the refrigeration work consumption 4.2K of secondary cold head, only have 1.5W, this, to the design of superconducting magnet and ambient heat, proposes more strict requirement.
Hanker in every leakage, the leakage heat of current feed account for very great share.At present, the current feed great majority used are copper-high-temperature superconducting lead binary combination mode, copper goes between as primary current lead is operated between room temperature and refrigeration machine one-level cold head temperature, and high-temperature superconductive lead wire is that two-level current lead-in wire is operated between one-level cold head and secondary cold head temperature.Like this, the hot major part of leakage of copper lead-in wire can be taken away by one-level cold head, and high-temperature superconductive lead wire is then in superconducting state, eliminates Joule heat; On the other hand, the thermal conductivity of high temperature superconducting materia is very low, and the conductive heat leakage along lead-in wire is very little.
Although current current feed has considerably reduced Lou heat, one-level copper current lead-in wire is still very large to the leakage heat of one-level cold head, and cause cold screen temperature to fall too low, the higher radiant heat to superconducting magnet of temperature of cold screen is also larger.For the conduction cooling superconducting magnet system that some energising is hundreds of ampere, situation is more outstanding, may cause superconducting magnet cisco unity malfunction time serious.
Summary of the invention
The object of the invention is to overcome existing primary current lead and leak the large defect of heat to one-level cold head, propose a kind of separate type primary current lead device.
Current feed is the power supply that the is in room temperature passage to the superconducting magnet conveying capacity in low temperature environment.The low-temperature end of primary current lead is fixed on the cold screen of superconducting magnet system, and cold screen directly connects with the one-level cold head of G-M refrigeration machine, and by the refrigerating capacity of one-level cold head, cold screen is cooled to below 77K.Primary current lead is conducted to one-level cold head to the leakage heat of cold screen by cold screen.
Separate type primary current lead device of the present invention is by the following technical solutions:
When superconducting magnet is after disposable excitation to desired value, relend the closed superconducting magnet that makes helping superconducting switch and run under continuous current, after this current feed will no longer include electric current and pass through.If when superconducting magnet excitation, the temperature end of primary current lead is cooled to a lower temperature by employing cryogenic liquid, when superconducting magnet operates in continuous current pattern, disconnect the connection of primary current lead and temperature end, the leakage heat of temperature end to one-level cold head will be greatly reduced like this.
Separate type primary current lead device of the present invention is made up of primary current lead body and axial displacement regulator.Described axial displacement regulator is fixed on the upper cover plate of vacuum tank, and the temperature end of primary current lead body is fixed in axial displacement regulator, and the low-temperature end of primary current lead body is fixed on the upper cover plate of cold screen of superconducting magnet system.Primary current lead body and high-temperature superconductive lead wire form the passage of external power to superconducting magnet conveying capacity jointly.
The primary current lead body of separate type primary current lead device of the present invention mainly comprises low temperature cylinder, temperature end fixed leg, temperature end base and cold screen junction block.Described temperature end fixed leg is the cylinder that upper end is thick, lower end is thin, and the upper end of temperature end fixed leg is welded with a wiring nose, and this wiring nose is connected with the output line of external power.Described low temperature cylinder is the uncovered cup-like containers in upper end.Center, low temperature cylinder lower surface has circular hole, and the outstanding one section of pipe in upper surface of described temperature end fixed leg, this pipe inserts the circular hole at center, low temperature cylinder lower surface, and welds together with described low temperature cylinder.Described temperature end base upper surface is processed with a groove, and the diameter of groove is equal with the external diameter of temperature end fixed leg lower end; The bottom surface of temperature end base is processed with a screwed hole, and temperature end base is fixed on the upper cover plate of described cold screen by a screwed epoxy bar, and the upper end of epoxy bar is tightened in the screwed hole on temperature end base bottom surface.Described cold screen junction block is fixed on cold screen upper cover plate, is lined with heat conductive insulating part between cold screen junction block and cold screen upper cover plate, makes cold screen junction block and cold screen upper cover plate have good thermo-contact when ensureing electric insulation.Cold screen junction block upper end is connected by a copper bar with temperature end base, and cold screen junction block lower end is connected with high-temperature superconductive lead wire.
The axial displacement regulator of separate type primary current lead device of the present invention comprises upper mounted plate, bellows and metal threaded bar.Upper mounted plate edge is along the circumferential direction processed with several straight holes, vertically penetrates a metal threaded bar in each straight hole, and the lower end of all metal threaded bars is weldingly fixed on the upper cover plate of vacuum tank; Be processed with a centre bore in the middle of upper mounted plate, be used for fixing the temperature end fixed leg of primary current lead body.Place a bellows between upper mounted plate and the upper cover plate of vacuum tank, upper surface and the upper mounted plate bottom surface of bellows weld together, and the lower surface of bellows and the upper cover plate of vacuum tank weld together.Each metal threaded bar upper end arranges an adjusting nut, and when tightening the adjusting nut of these metal threaded bar upper ends, bellows is under pressure, can shrink vertically drives upper mounted plate to move down, when unclamping adjusting nut, bellows extends vertically, and upper mounted plate will move up.
The centre bore of upper mounted plate is passed in the lower end of described temperature end fixed leg, and the upper end of temperature end fixed leg is pressed on upper mounted plate by clamp nut.Temperature end fixed leg relies on an insulator cap and an insulating case and upper mounted plate to form electric insulation, relies on a sealing ring to form vacuum seal.Described insulator cap is enclosed within the bottom surface of temperature end fixed leg upper end cylinder, and insulating case is enclosed within the top of temperature end fixed leg lower end cylinder.Sealing ring is placed on the bottom surface of temperature end fixed leg upper end cylinder, and is positioned at the centre bore of insulator cap; Be lined with an insulation spacer and a flat shim between clamp nut and upper mounted plate, insulation spacer is positioned at the bottom surface of upper mounted plate, and flat shim is positioned at the bottom surface of insulation spacer.
When needs external power is to superconducting magnet excitation, first tighten the adjusting nut of axial displacement regulator, axial displacement regulator moves down driving the temperature end fixed leg of primary current lead body, and the lower surface of temperature end fixed leg is inserted in the groove of temperature end base upper surface and completed electrical connection; Then in the low temperature cylinder of primary current lead body, inject cryogenic refrigeration liquid, the temperature of temperature end fixed leg is significantly reduced, will be greatly reduced by the leakage heat of primary current lead body to one-level cold head like this.When after superconducting magnet excitation to desired value, the closed superconducting magnet that makes by means of superconducting switch is run under continuous current, now primary current lead body will no longer include electric current to pass through, then the adjusting nut of axial displacement regulator is unscrewed, axial displacement regulator moves up driving the temperature end fixed leg of primary current lead body, a segment distance is extracted by the groove from temperature end base upper surface in the lower surface of temperature end fixed leg, now be separated between temperature end fixed leg with temperature end base, so just block the conductive heat leakage of primary current lead body to one-level cold head completely.
Accompanying drawing explanation
Fig. 1 applies conduction cooling superconducting magnet structural representation of the present invention, in figure: 1 primary current lead body, 2 axial displacement regulator, 3 vacuum tanks, 4 cold screens, 5 superconducting magnets, 6 high-temperature superconductive lead wires;
Fig. 2 primary current lead body structural representation, in figure: 11 low temperature cylinders, 12 temperature end fixed legs, 13 wiring noses, 14 temperature end bases, 15 copper strips, 16 cold screen junction blocks, 17 epoxy bars;
Fig. 3 axial displacement regulator structural representation, in figure: 21 upper mounted plates, 22 bellowss, 23 metal threaded bars, 24 centre bores, 25 adjusting nuts;
Fig. 4 according to the primary current lead device sectional structure chart of the embodiment of the present invention, in figure: 31 sealing rings, 32 insulator caps, 33 insulating sleeves, 34 insulation spacers, 35 flat shims, 36 clamp nuts.
Embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
As shown in figures 1 and 3, separate type primary current lead device of the present invention is made up of primary current lead body 1 and axial displacement regulator 2.Wherein, axial displacement regulator 2 is fixed on the upper cover plate of vacuum tank 3, and the temperature end of primary current lead body 1 is fixed in axial displacement regulator 2, and the low-temperature end of primary current lead body 1 is fixed on the upper cover plate of the cold screen 4 of superconducting magnet system.Primary current lead body 1 forms the passage of external power to superconducting magnet 5 conveying capacity together with secondary high-temperature superconductive lead wire 6.
The primary current lead body 1 of separate type primary current lead device of the present invention mainly comprises low temperature cylinder 11, temperature end fixed leg 12, temperature end base 14 and cold screen junction block 16.Wherein, temperature end fixed leg 12 is the cylinder that upper end is thick, lower end is thin.The upper end of temperature end fixed leg 12 is welded with a wiring nose 13, and this wiring nose 13 is connected with external power output line.Low temperature cylinder 11 is the uncovered cup-like containers in upper end, and center, low temperature cylinder 11 lower surface has circular hole, and the outstanding one section of pipe in upper surface of temperature end fixed leg 12, this pipe inserts the circular hole at center, low temperature cylinder 11 lower surface, and described low temperature cylinder welds together.Temperature end base 14 upper surface is processed with a groove, and the diameter of groove is identical with the lower end external diameter of temperature end fixed leg 12; The bottom surface of temperature end base 14 is processed with a screwed hole, and temperature end base 14 is fixed on cold screen 4 upper cover plate by a screwed epoxy bar 17, and the upper end of epoxy bar 17 is tightened in the screwed hole on temperature end base 14 bottom surface.Cold screen junction block 16 is fixed on cold screen 4 upper cover plate, is lined with heat conductive insulating part between cold screen junction block 16 and cold screen 4 upper cover plate, makes cold screen junction block 16 and cold screen 4 upper cover plate have good thermo-contact when ensureing electric insulation.Cold screen junction block 16 upper end is connected by a copper bar 15 with temperature end base 14, and cold screen junction block 16 lower end is connected with high-temperature superconductive lead wire 6.
The axial displacement regulator 2 of separate type primary current lead device of the present invention comprises upper mounted plate 21, bellows 22 and metal threaded bar 23.Upper mounted plate 21 edge is along the circumferential direction processed with several straight holes, vertically penetrates a metal threaded bar 23 in each straight hole, and the lower end of all metal threaded bars 23 is weldingly fixed on the upper cover plate of vacuum tank 3; The temperature end fixed leg 12 that a centre bore 24 is used for fixing primary current lead body 1 is processed with in the middle of upper mounted plate 21.Place a bellows 22 between the upper cover plate of upper mounted plate 21 and vacuum tank 3, bellows 22 upper surface and upper mounted plate 21 bottom surface weld together, and the upper cover plate of bellows 22 lower surface and vacuum tank 3 welds together.Each metal threaded bar 23 upper end arranges an adjusting nut 25, and when tightening these adjusting nuts 25, bellows 22 is under pressure, shrink vertically and drive upper mounted plate 21 to move down, when unclamping adjusting nut, bellows extends vertically, and upper mounted plate 21 will move up.
The centre bore 24 of upper mounted plate 21 is passed in the lower end of described temperature end fixed leg 12, and the upper end of temperature end fixed leg 12 is pressed on upper mounted plate 21 by clamp nut 36.Temperature end fixed leg 12 relies on an insulator cap 32 and an insulating case 33 to form electric insulation with upper mounted plate 21, a sealing ring 31 is relied on to form vacuum seal, insulation cap sleeve 32 is in the bottom surface of temperature end fixed leg 12 upper end cylinder, insulating case 33 is enclosed within the top of temperature end fixed leg 12 lower end cylinder, and sealing ring 31 is placed on the bottom surface of temperature end fixed leg 12 upper end cylinder and is positioned at the centre bore of insulator cap 32; Be lined with an insulation spacer 34 and a flat shim 35 between clamp nut 36 and upper mounted plate 21, insulation spacer 34 is positioned at the bottom surface of upper mounted plate 21, and flat shim 35 is positioned at the bottom surface of insulation spacer 34.
When needs external power is to superconducting magnet excitation 5, first tighten the adjusting nut 25 of axial displacement regulator 2, axial displacement regulator 2 moves down driving the temperature end fixed leg 12 of primary current lead body 1, and the lower surface of temperature end fixed leg 12 is inserted in the groove of temperature end base 14 upper surface and completed electrical connection; Then in the low temperature cylinder 11 of primary current lead body 1, inject cryogenic refrigeration liquid, the temperature of temperature end fixed leg 12 is significantly reduced, will be greatly reduced by the leakage heat of primary current lead body 1 to one-level cold head like this.When after superconducting magnet excitation 5 to desired value, the closed superconducting magnet 5 that makes by means of superconducting switch is run under continuous current, now primary current lead body 1 will no longer include electric current to pass through, then the adjusting nut 25 of axial displacement regulator 2 is unscrewed, axial displacement regulator 2 moves up driving the temperature end fixed leg 12 of primary current lead body 1, a segment distance is extracted by the groove from temperature end base 14 upper surface in the lower surface of temperature end fixed leg 12, now be separated between temperature end fixed leg 12 with temperature end base 14, so just block the conductive heat leakage of primary current lead body 1 to one-level cold head completely.
Claims (4)
1. a separate type primary current lead device, is characterized in that, described primary current lead device comprises primary current lead body (1) and axial displacement regulator (2); Described axial displacement regulator (2) is fixed on the upper cover plate of vacuum tank (3), the temperature end of described primary current lead body (1) is fixed in axial displacement regulator (2), and the low-temperature end of primary current lead body (1) is fixed on the upper cover plate of cold screen (4) of superconducting magnet system;
Described primary current lead body (1) is made up of low temperature cylinder (11), temperature end fixed leg (12), temperature end base (14) and cold screen junction block (16); Described temperature end fixed leg (12) is the cylinder that upper end is thick, lower end is thin, and the upper end of temperature end fixed leg (12) is welded with wiring nose (13), and this wiring nose (13) is connected with external power output line; Low temperature cylinder (11) is the uncovered cup-like containers in upper end, low temperature cylinder (11) center, lower surface has circular hole, the outstanding one section of pipe in the upper surface of temperature end fixed leg (12) inserts the circular hole at low temperature cylinder (11) center, lower surface, and welds together with described low temperature cylinder; Temperature end base (14) upper surface is processed with a groove, and the diameter of groove is equal with the external diameter of temperature end fixed leg (12) lower end; The bottom surface of temperature end base (14) is processed with a screwed hole, temperature end base (14) is fixed on cold screen (4) upper cover plate by a screwed epoxy bar (17), and the upper end of epoxy bar (17) is tightened in the screwed hole on temperature end base (14) bottom surface; Cold screen junction block (16) is fixed on cold screen (4) upper cover plate, is lined with heat conductive insulating part between cold screen junction block (16) and cold screen (4) upper cover plate; Cold screen junction block (16) upper end is connected by a copper bar (15) with temperature end base (14), and cold screen junction block (16) lower end is connected with high-temperature superconductive lead wire (6).
2. according to separate type primary current lead device according to claim 1, it is characterized in that, described axial displacement regulator (2) comprises upper mounted plate (21), bellows (22) and metal threaded bar (23); Upper mounted plate (21) edge is along the circumferential direction processed with several straight holes, vertically penetrate a metal threaded bar (23) in each straight hole, the lower end of all metal threaded bars (23) is weldingly fixed on the upper cover plate of vacuum tank (3); The temperature end fixed leg (12) that a centre bore (24) is used for fixing primary current lead body (1) is processed with in the middle of upper mounted plate (21); A bellows (22) is placed between the upper cover plate of upper mounted plate (21) and vacuum tank (3), bellows (22) upper surface and upper mounted plate (21) bottom surface weld together, and the upper cover plate of bellows (22) lower surface and vacuum tank (3) welds together; Each metal threaded bar (23) upper end all arranges an adjusting nut (25), when tightening these adjusting nuts (25), bellows (22) shrinks vertically when being under pressure and drives upper mounted plate (21) to move down, when unclamping adjusting nut, bellows extends vertically, and upper mounted plate (21) moves up.
3. according to the separate type primary current lead device described in claim 1 or 2, it is characterized in that, the centre bore of upper mounted plate (21) is passed in the lower end of described temperature end fixed leg (12), and the upper end of temperature end fixed leg (12) is pressed on upper mounted plate (21) by clamp nut; Temperature end fixed leg (12) relies on an insulator cap (32) and an insulating case (33) to form electric insulation with upper mounted plate (21), relies on a sealing ring (31) to form vacuum seal; Insulator cap (32) is enclosed within the bottom surface of temperature end fixed leg (12) upper end cylinder, insulating case (33) is enclosed within the top of temperature end fixed leg (12) lower end cylinder, and sealing ring (31) is placed on the bottom surface of temperature end fixed leg (12) upper end cylinder and is positioned at the centre bore of insulator cap (32); An insulation spacer (34) and a flat shim (35) is lined with between clamp nut (36) and upper mounted plate (21), insulation spacer (34) is positioned at the bottom surface of upper mounted plate (21), and flat shim (35) is positioned at the bottom surface of insulation spacer (34).
4. according to separate type primary current lead device according to claim 1, it is characterized in that, when needs external power is to superconducting magnet (5) excitation, tighten the adjusting nut (25) of described axial displacement regulator (2), make axial displacement regulator (2) drive the temperature end fixed leg (12) of primary current lead body (1) to move down, the lower surface of temperature end fixed leg (12) is inserted in the groove of temperature end base (14) upper surface and is completed electrical connection, then in the low temperature cylinder (11) of primary current lead body (1), cryogenic refrigeration liquid is injected, the temperature of temperature end fixed leg (12) is reduced, will be greatly reduced by the leakage heat of primary current lead body (1) to one-level cold head like this, when after superconducting magnet (5) excitation to desired value, the closed superconducting magnet (5) that makes by means of superconducting switch is run under continuous current, now primary current lead body (1) will no longer include electric current to pass through, then the adjusting nut (25) of axial displacement regulator (2) is unscrewed, axial displacement regulator (2) drives the temperature end fixed leg (12) of primary current lead body (1) to move up, a segment distance is extracted by the groove from temperature end base (14) upper surface in the lower surface of temperature end fixed leg (12), make to be separated between temperature end fixed leg (12) with temperature end base (14), block the conductive heat leakage of primary current lead body (1) to one-level cold head.
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| CN201310347130.8A CN103413645B (en) | 2013-08-09 | 2013-08-09 | A kind of separate type primary current lead device |
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| CN201310347130.8A CN103413645B (en) | 2013-08-09 | 2013-08-09 | A kind of separate type primary current lead device |
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| CN103413645B true CN103413645B (en) | 2015-10-14 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2529897B (en) * | 2014-09-08 | 2018-04-25 | Siemens Healthcare Ltd | Arrangement for cryogenic cooling |
| CN107068329A (en) * | 2017-03-23 | 2017-08-18 | 杭州图锐科技有限公司 | A kind of extension type magnetizes current lead device and its application method |
| CN109215928A (en) * | 2018-11-26 | 2019-01-15 | 宁波健信核磁技术有限公司 | A kind of superconducting magnet room temperature current feed attachment device |
| CN109360707A (en) * | 2018-12-04 | 2019-02-19 | 湖南迈太科医疗科技有限公司 | Plug-in current down-lead structure and superconducting magnet |
| CN115440461B (en) * | 2022-11-09 | 2023-01-24 | 上海超导科技股份有限公司 | Cold guide structure for sealing low-temperature cavity of high-temperature superconducting magnet and disassembling and assembling method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100477027C (en) * | 2005-12-15 | 2009-04-08 | 中国科学院电工研究所 | Current lead of superconductive magnet |
| CN101615469A (en) * | 2009-05-08 | 2009-12-30 | 中国科学院电工研究所 | The high-temperature superconductive magnet system of high heat capacity material protection |
| CN102867610A (en) * | 2012-09-03 | 2013-01-09 | 中国科学院电工研究所 | Binary pluggable vapor cooled current lead device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2581283B2 (en) * | 1990-08-09 | 1997-02-12 | 富士電機株式会社 | Current lead for superconducting coil |
| JP4703545B2 (en) * | 2006-11-22 | 2011-06-15 | 株式会社東芝 | Superconducting devices and current leads |
-
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- 2013-08-09 CN CN201310347130.8A patent/CN103413645B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100477027C (en) * | 2005-12-15 | 2009-04-08 | 中国科学院电工研究所 | Current lead of superconductive magnet |
| CN101615469A (en) * | 2009-05-08 | 2009-12-30 | 中国科学院电工研究所 | The high-temperature superconductive magnet system of high heat capacity material protection |
| CN102867610A (en) * | 2012-09-03 | 2013-01-09 | 中国科学院电工研究所 | Binary pluggable vapor cooled current lead device |
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