IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0415357
(2009-03-31)
|
등록번호 |
US-8238988
(2012-08-07)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
2 |
초록
▼
A superconducting magnet assembly and method of cooling a superconducting magnet assembly. An embodiment of the method of manufacturing a superconducting magnet assembly includes: providing a housing configured about a vacuum reservoir; forming a coil former; surrounding the coil former with a therm
A superconducting magnet assembly and method of cooling a superconducting magnet assembly. An embodiment of the method of manufacturing a superconducting magnet assembly includes: providing a housing configured about a vacuum reservoir; forming a coil former; surrounding the coil former with a thermal shield; locating the thermal shield in the vacuum reservoir; positioning a superconducting magnet about the coil former, wherein the superconducting magnet is configured about a central core to receive an object; providing a second vacuum reservoir having a cryogen reservoir therein; providing two two-phase heat transfer devices wherein each comprises tubing having an evaporator region and a condenser region; thermally connecting the evaporator region of one of the heat transfer devices with the coil former and/or the superconducting magnet and the evaporator region of the other two-phase heat transfer device with the thermal shield; and thermally connecting a cryocooler to the cryogen reservoir and to the condensing region of both heat transfer devices.
대표청구항
▼
1. A method of manufacturing a superconducting magnet assembly comprising: providing a housing configured about a first vacuum reservoir;forming a coil former;surrounding the coil former with a thermal shield;locating the thermal shield in the first vacuum reservoir;positioning a superconducting mag
1. A method of manufacturing a superconducting magnet assembly comprising: providing a housing configured about a first vacuum reservoir;forming a coil former;surrounding the coil former with a thermal shield;locating the thermal shield in the first vacuum reservoir;positioning a superconducting magnet about the coil former, wherein the superconducting magnet is configured about a central core to receive an object;providing a second vacuum reservoir having a cryogen reservoir therein;providing a first two-phase heat transfer device and a second two-phase heat transfer device, each comprising tubing having an evaporator region and a condenser region;thermally connecting the evaporator region of the first two-phase heat transfer device with one of the coil former and the superconducting magnet and the evaporator region of the second two-phase heat transfer device with the thermal shield; andthermally connecting a cryocooler to the cryogen reservoir and to the condensing region of the first and the second two-phase heat transfer devices. 2. The method of claim 1, further comprising: adding a liquid and a vapor cryogen to the tubing. 3. The method of claim 2, wherein the liquid and the vapor cryogen comprises one of helium 4, helium 3, hydrogen, neon, nitrogen, oxygen, argon, krypton, and combinations thereof. 4. The method of claim 2 wherein the liquid cryogen fills a percentage of a total volume of the tubing in a range from about 10% to about 90%. 5. The method of claim 1 wherein the first and the second two-phase heat transfer device comprise pulsating heat pipes. 6. The method of claim 1, wherein the tubing is a closed system. 7. The method of claim 1, wherein the superconducting magnet assembly is configured for use as one of a nuclear magnetic resonance spectroscopy system, a magnetic energy storage system, a superconducting generators, a superconducting fault current limiter, a superconducting particle accelerator, a magnetic separation system, a transportation systems, a superconducting cable, a transformer, and a superconducting supercomputer. 8. The method of claim 1, wherein the tubing is an open system. 9. The method of claim 1, wherein the first vacuum reservoir and the second vacuum reservoir are substantially separate. 10. The method of claim 1, wherein the tubing comprises a plurality of tubing. 11. A superconducting magnet assembly comprising: a housing containing a first vacuum reservoir therein, the housing further containing: a coil former therein;a plurality of magnets located within or adjacent to the coil former about a central core configure to receive an object;a second vacuum reservoir having a cryogen reservoir therein;a cryocooler in the second vacuum reservoir and in thermal communication with the cryogen reservoir; anda two-phase heat transfer device comprising: tubing containing liquid and vapor cryogen therein, the tubing including an evaporator region and a condenser region;wherein the evaporator region of the two-phase heat transfer device is in thermal communication with one of the coil former and the plurality of magnets and the condenser region of the two-phase heat transfer device is in thermal communication with the cryogen reservoir. 12. The superconducting magnet assembly of claim 11, wherein the two-phase heat transfer devices comprises a pulsating heat pipe. 13. The superconducting magnet assembly of claim 11, further comprising a nitrogen pre-cool piping system in thermal communication with one of the plurality of magnets and the coil former. 14. The superconducting magnet assembly of claim 11 wherein the liquid and vapor cryogen in the tubing of the first and second two-phase heat exchangers comprises one of helium 4, helium 3, hydrogen, neon, nitrogen, oxygen, argon, krypton, and combinations thereof. 15. The superconducting magnet assembly of claim 11 wherein the liquid cryogen fills a percentage of a total volume of the tubing of the two-phase heat transfer devices in a range from about 10% to about 90%. 16. The superconducting magnet assembly of claim 11, wherein the first vacuum reservoir is substantially separate from the second vacuum reservoir. 17. The superconducting magnet assembly of claim 11, wherein the first vacuum reservoir and the second vacuum reservoir are a contiguous vacuum reservoir. 18. The superconducting magnet assembly of claim 11, wherein the two-phase heat transfer device comprises a plurality of tubing. 19. The superconducting magnet assembly of claim 11 wherein the tubing of the two-phase heat transfer devices is a closed system. 20. The superconducting magnet assembly of claim 11 wherein the tubing of one of the two-phase heat transfer devices is an open system. 21. The superconducting magnet assembly of claim 11 wherein the tubing is configured in a serpentine pattern. 22. The superconducting magnet assembly of claim 11, wherein the tubing is embedded in the coil former. 23. The superconducting magnet assembly of claim 11, wherein a flow geometry of the tubing is one of substantially horizontal, substantially vertical, and combinations thereof. 24. The superconducting magnet assembly of claim 11, wherein the evaporative region of the two-phase heat transfer device cools the coil former to approximately 4 Kelvin. 25. The superconducting magnet assembly of claim 11, wherein the assembly comprises a magnetic resonance imaging (MRI) system. 26. The superconducting magnet assembly of claim 11, further comprising a thermal shield of the first vacuum reservoir defining a volume, the thermal shield containing the coil former. 27. The superconducting magnet assembly of claim 26, further comprising a second two-phase heat transfer device comprising tubing containing liquid and vapor cryogen therein, the tubing including an evaporator region and a condenser region, wherein the evaporator region of the second two-phase heat transfer device is in thermal communication with the thermal shield and the condenser region of the second two-phase heat transfer device is in thermal communication with the cryocooler. 28. The superconducting magnet assembly of claim 27, wherein the evaporative region of the second two-phase heat transfer device cools an interior surface of the thermal shield to a range of approximately 40 Kelvin to approximately 70 Kelvin.
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