Coolant loop for the rotor of a turbogenerator with a superconductive exciter winding

Patent · Tue May 20 04:00:00 EDT 1980

OSTI ID:5554550

Fritz, W; Weghaupt, E

A coolant circulatory loop for a turbogenerator rotor is disclosed that has a superconductive field winding and a damper and cold shielding surrounding the field winding, the field winding being cooled by deeply-cooled liquid helium, and the damper and cold shielding by an at least partly vaporized partial flow of helium that has flowed through the field winding, includes a mixing chamber, means for feeding liquid helium in forced circulation from the mixing chamber to the field winding wherein it is heated due to winding losses and pressure reduction and is partly evaporated, means located in the rotating rotor for recooling the nonevaporated helium by removing heat of vaporization therefrom and returning the thus recooled helium to the mixing chamber, cooling means external to the rotor for recooling the partial flow of helium after it has cooled the damper and cold shielding and means for feeding the recooled partial flow of helium back to the mixing chamber.

• Assignee: Kraftwerk Union Ag (Germany, Federal Republic Of)
• Patent Number(s): US 4204134
• OSTI ID: 5554550
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COOLANT LOOPS
COOLING SYSTEMS
CRYOGENIC FLUIDS
DESIGN
ELECTRIC COILS
ELECTRIC CONDUCTIVITY
ELECTRIC FIELDS
ELECTRIC GENERATORS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY SYSTEMS
ENTHALPY
EQUIPMENT
FLUIDS
GASES
HELIUM
LIQUIDS
NONMETALS
PHYSICAL PROPERTIES
RARE GASES
ROTORS
SHIELDS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING GENERATORS
SUPERCONDUCTIVITY
THERMAL SHIELDS
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
TURBOGENERATORS
VAPORIZATION HEAT