摘要:
Disclosed herein is a superconducting field coil of a homopolar type superconducting synchronous machine. The superconducting synchronous machine includes a superconducting field coil which comprises a single or double pancake coil formed by winding a superconducting wire, a core-type rotor which is made of a magnetic material, and an armature winding excited to three phases on a surface of a core of a stator. The field coil of the homopolar type superconducting synchronous machine is not rotated when the machine is in operation. Thus, there is no part for coupling the rotating field coil to a stationary cryo-cooler for cooling a refrigerant, so that the structure is simple, reliability is high, and various cooling methods are available.
摘要:
A pump for supplying a cryogenic liquid coolant in accordance with the present invention includes: a housing having an inlet port for introducing a cryogenic liquid coolant, an outlet port for discharging the cryogenic liquid coolant introduced through the inlet port, and a chamber for connecting the inlet port and the outlet port; an impeller rotatably retained in the housing for introducing the cryogenic liquid coolant through the inlet port and discharging the same through the outlet port; and a vapor exhausting part provided in the housing for exhausting vapor generated from the cryogenic liquid coolant.
摘要:
A cooling device for current lines of a superconducting rotating machine, which is capable of removing heat generated from the current lines of the superconducting rotating machine, thereby effectively preventing a superconducting coil from being deformed due to the heat generated from the current lines, is disclosed. The cooling device includes heat conduction members respectively mounted to outer surfaces of the current lines. Each heat conduction member is in contact with an inner peripheral surface of the stator such that the heat conduction member transfers, to the stator, heat generated from a corresponding one of the current lines. The heat conduction member further includes insulators each surrounding a corresponding one of the current lines between a corresponding one of the heat conduction members and a power slip ring arranged in the stator, to thermally insulate the heat generated from the corresponding current line.
摘要:
The rotary type ultralow temperature refrigerant supply apparatus includes a refrigerant introduction pipe coupled to the super conductive rotor for supplying a liquid-phase ultralow temperature refrigerant cooled by the refrigeration system to the evaporator, a refrigerant withdrawal pipe disposed spaced apart from the refrigerant introduction pipe for withdrawing a gas-phase ultralow temperature refrigerant obtained through the evaporation of the liquid-phase refrigerant by the evaporator and guiding the withdrawn gas-phase ultralow temperature refrigerant to the refrigeration system, and a vacuum housing fixedly disposed outside the refrigerant introduction pipe and the refrigerant withdrawal pipe, the vacuum housing having a vacuum heat insulation space defined inside.
摘要:
Disclosed is a cooling and supporting apparatus for current leads of a superconducting rotating machine. The cooling and supporting apparatus is installed on the current leads, and includes an inner tube provided with a spiral-shaped groove formed in the outer surface thereof and an outer tube provided with a spiral-shaped groove formed in the inner surface thereof, thus preventing heat transferred through the current leads from being directly transferred to a superconducting coil for preventing the deformation of the superconducting coil, and allowing the outer tube from fixedly surrounding the whole current leads for preventing the breakage of the current leads due to centrifugal force of a rotor.
摘要:
A superconducting rotating machine having a cooler for a rotator is provided. The superconducting rotating machine includes a rotator wound with a superconducting coil, a stator enclosing the rotator and separated therefrom by a predetermined gap, the cooler having a cold head directly attached to the rotator and at least one compressor connected with the cold head, and a flexible coupling disposed between the cold head and the compressor and enabling a cryogenic refrigerant to flow therein. The cold head is directly connected to the rotator, and the cold head and the compressor are driven using the flexible coupling, so that it is possible to prevent vibration of the compressor and enhance cooling efficiency by thermally separating the cryogenic cold head from the compressor.
摘要:
A superconductivity rotor has a field coil portion wound with a superconductivity wire, a support portion for supporting the field coil portion, torque tubes positioned at both ends of the support portion and transmitting a torque to an outside from the field coil portion, an inner casing for housing the field coil portion and the support portion; and an outer casing for housing the inner casing and the torque tube. The torque tube consists of a first torque tube positioned at one end of the support portion and a second torque tube positioned at the other end of the support portion. The first torque tube is formed into a vessel shape and has a plurality of engagement holes formed along a periphery thereof so that it is engaged with an engagement member, and the second torque tube comprises a disc-shaped structure consisting of plural plates and main ring-shaped members stacked, and is engaged with an engagement member.
摘要:
A superconductivity rotor has a field coil portion wound with a superconductivity wire, a support portion for supporting the field coil portion, torque tubes positioned at both ends of the support portion and transmitting a torque to an outside from the field coil portion, an inner casing for housing the field coil portion and the support portion; and an outer casing for housing the inner casing and the torque tube. The torque tube consists of a first torque tube positioned at one end of the support portion and a second torque tube positioned at the other end of the support portion. The first torque tube is formed into a vessel shape and has a plurality of engagement holes formed along a periphery thereof so that it is engaged with an engagement member, and the second torque tube comprises a disc-shaped structure consisting of plural plates and main ring-shaped members stacked, and is engaged with an engagement member.
摘要:
A pump for supplying a cryogenic liquid coolant in accordance with the present invention includes: a housing having an inlet port for introducing a cryogenic liquid coolant, an outlet port for discharging the cryogenic liquid coolant introduced through the inlet port, and a chamber for connecting the inlet port and the outlet port; an impeller rotatably retained in the housing for introducing the cryogenic liquid coolant through the inlet port and discharging the same through the outlet port; and a vapor exhausting part provided in the housing for exhausting vapor generated from the cryogenic liquid coolant.
摘要:
Disclosed is a cooling fluid path structure for a superconducting rotating machine, which includes: a fixed inlet fluid path fixed together with the fluid supply means; a rotating inlet fluid path adjacently connected to an outlet of the fixed inlet fluid path, which is for transferring the cooling fluid transferred from the fixed inlet fluid path to a cooling fluid path inlet provided in the rotor while rotating together with the rotor; a rotating outlet fluid path rotating together with the rotor, to which the cooling fluid discharged from a cooling fluid path outlet of the rotor is transferred; and a fixed outlet fluid path adjacently connected to the rotating outlet fluid path, which is for transferring the cooling fluid transferred from the rotating outlet fluid path to the fluid supply means while being fixed together with the fluid supply means, wherein the rotating outlet fluid path and the fixed outlet fluid path are disposed in such a manner that they surround outside of the rotating inlet fluid path and the fixed inlet fluid path.