Arrangement for cooling a superconducting magnet winding
AssigneeSiemens Aktiengesellschaft
InventorsLutz Intichar, Christoph Schnapper, Erich Weghaupt
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Abstract
The cooling arrangement of the superconducting field winding of a turbo-generator contains a coolant chamber, in which a vaporous and a liquid phase of a coolant are contained, and to the vapor space of which a coolant discharge line with a high flow resistance is connected. To prevent excessive over-pressure in the coolant chamber in the event of a quench, a buffer tank is also connected to the vapor space via a connecting path having a relatively low flow resistance.
Claims8
In an arrangement for cooling a superconducting magnet winding, especially the superconducting field winding in the rotor of an electric machine, said arrangement including;
- at least one coolant chamber which, in the operating condition, contains a gaseous phase and a liquid phase of a coolant;
- at least one feed line for feeding coolant to said chamber;
- coolant paths through the magnet winding connecting to a liquid space in the chamber occupied by the liquid phase;
- and at least one coolant discharge line with a predetermined high flow resistance connected to a vapor space in the chamber occupied by the gaseous phase, the improvement comprising:
- (a) a buffer tank;
- and
- (b) a connecting path having a relatively low flow resistance connecting said buffer tank to the vapor space occupied by the gaseous phase.
Dependencies are inferred from the claim text.