Cryostat apparatus
AssigneeSiemens Westinghouse Power Corporation
InventorsJerald F. Lowry, Owen R. Christianson
Life of this patent
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Abstract
A cryostat having inner and outer vessels, with a containment vessel disposed in the interior of the cryostat spaced from the inner vessel wall. The containment vessel houses a superconducting coil immersed in a liquid helium bath which is prevented from contacting the inner vessel wall. Primary and secondary shielding arrangements help to intercept heat transferred by gas conduction and radiation. For relatively high power operation wherein the coil is charged and discharged frequently, the inner and outer vessels are fabricated of a non-magnetic composite material.
Claims15
Cryostat apparatus for maintaining a superconducting coil in a superconducting state, comprising:
- (A) inner and outer vessels having a near vacuum condition therebetween;
- (B) a cover member for enclosing the interior of said cryostat;
- (C) a containment vessel positioned within said inner vessel and spaced therefrom;
- (D) said containment vessel containing said superconducting coil immersed in a cryogenic fluid and
- (E) means directing gas boiloff of said cryogenic fluid from said containment vessel between said containment vessel and said inner vessel.
Cryostat apparatus for maintaining a superconducting coil in a superconducting state, comprising:
- (A) inner and outer vessels having a near vacuum condition therebetween;
- (B) a cover member for enclosing the interior of said cryostat;
- (C) a containment vessel positioned within said inner vessel and spaced therefrom;
- (D) said containment vessel containing said superconducting coil immersed in a cryogenic fluid;
- (E) support means including support columns positioned externally of said inner and outer vessels;
- and
- (F) means connecting said containment vessel and said coil to said support columns for supporting said containment vessel and said coil from said support means without the weight of the containment vessel and coil being carried by either said inner vessel or outer vessel.
Dependencies are inferred from the claim text.