摘要:
A multiphase superconducting cable connection structure includes a connection box accommodating three conductor connects connecting a superconductor of a cable core of each phase extracted from a pair of 3-phase superconducting cables, a solid insulation member fixed to an outer circumference of each conductor connect, and a metal flange fixing the solid insulation member to the connection box. By fixing the metal flange to the connection box (a refrigerant vessel), the conductor connect can be positioned and the conductor connector's movement caused as the cable core thermally contracts can be reduced. The structure can help to position the conductor connect in the connection box and reliably hold it at a prescribed position.
摘要:
A termination structure of a cryogenic cable has a cryogenic-cable end portion and a current-lead end portion that are coupled to each other with a flexible conductor. Accordingly, any displacement in three-dimensional directions of the end portions that could occur due to thermal expansion and thermal contraction of the cryogenic cable and the current lead can be absorbed, and a sufficient current capacity can be ensured.
摘要:
A joint structure of a superconducting cable having improved connection strength and preventing break of a superconducting layer is provided. A central conductor of an insulating spacer and a superconducting cable are connected via a conductor connecting member having a sleeve-shaped end. Specifically, the central conductor of the insulating spacer and the conductor connecting member are connected by multi-contact connection.
摘要:
A multiphase superconducting cable connection structure includes a connection box accommodating three conductor connects connecting a superconductor of a cable core of each phase extracted from a pair of 3-phase superconducting cables, a solid insulation member fixed to an outer circumference of each conductor connect, and a metal flange fixing the solid insulation member to the connection box. By fixing the metal flange to the connection box (a refrigerant vessel), the conductor connect can be positioned and the conductor connector's movement caused as the cable core thermally contracts can be reduced. The structure can help to position the conductor connect in the connection box and reliably hold it at a prescribed position.
摘要:
A terminal structure of cryogenic equipment for leading a terminal of cryogenic equipment 100 from a very low temperature portion to a room temperature portion through a bushing, having a feature in that a connecting/heat-insulating portion 300 adiabatically connected with the aforementioned very low temperature portion 200 and the aforementioned room temperature portion 400 is provided along the outer circumference of the aforementioned bushing 30 between the aforementioned very low temperature portion 200 and the aforementioned room temperature portion 400.
摘要:
A first flange and a second flange are superposed and fastened with a bolt and a nut in a fastening operation, to implement a fastening structure used at temperature lower than atmospheric temperature for the fastening operation. Assuming that the first flange has a thickness L1 and a coefficient of linear expansion α1, the second flange has a thickness L2 and a coefficient of linear expansion α2, superposed first flange and second flange have a thickness L, and the bolt has a coefficient of linear expansion α, a relation of L·α≧L1·α1+L2·α2 is satisfied, i.e. heat shrinkage of the bolt is not smaller than the total heat shrinkage of the first and second flanges. Thus, impairment of sealing property due to heat shrinkage is avoided at a flange junction used at low temperature.
摘要翻译:第一凸缘和第二凸缘在紧固操作中用螺栓和螺母重叠并紧固,以实现在低于大气温度的温度下使用的紧固结构用于紧固操作。 假设第一凸缘具有厚度L 1和线膨胀系数α1,第二凸缘具有厚度L 2和线膨胀系数α2,叠置的第一凸缘和第二凸缘的厚度为L,并且螺栓 具有线性膨胀系数α,L.alpha> = L 1.alpha1 + L 2.alpha2的关系得到满足,即螺栓的热收缩率不小于第一和第二凸缘的总热收缩率。 因此,在低温下使用的凸缘接合处避免了由于热收缩引起的密封性的损害。
摘要:
A superconducting cable joint structure is a structure used to joint together superconducting cables used at cryogenic temperature or to joint together a terminal of the superconducting cable and a normal conducting cable, and it includes a joint insulation layer arranged radially outer than a portion connecting the superconducting cables' respective conductors together or the superconducting cable's conductor and the normal conducting cable's conductor together, and at least one coolant path provided at the joint insulation layer to cool the portion connecting the conductors together. The cable cores can have their connection prevented from generating heat to have an increased temperature.
摘要:
A superconducting cable joint structure is a structure used to joint together superconducting cables used at cryogenic temperature or to joint together a terminal of the superconducting cable and a normal conducting cable, and it includes a joint insulation layer arranged radially outer than a portion connecting the superconducting cables' respective conductors together or the superconducting cable's conductor and the normal conducting cable's conductor together, and at least one coolant path provided at the joint insulation layer to cool the portion connecting the conductors together. The cable cores can have their connection prevented from generating heat to have an increased temperature.
摘要:
A superconducting cable joint structure is a structure used to joint together superconducting cables used at cryogenic temperature or to joint together a terminal of the superconducting cable and a normal conducting cable, and it includes a joint insulation layer arranged radially outer than a portion connecting the superconducting cables' respective conductors together or the superconducting cable's conductor and the normal conducting cable's conductor together, and at least one coolant path provided at the joint insulation layer to cool the portion connecting the conductors together. The cable cores can have their connection prevented from generating heat to have an increased temperature.
摘要:
A cryogenic apparatus of superconducting equipment with excellent assembly workability and a termination structure of a superconducting cable including the cryogenic apparatus are provided. A termination structure of a superconducting cable includes a terminal of the superconducting cable disposed on a low-temperature side, a bushing 10 for communicating power between the low-temperature side and a room-temperature side, a connection part 2 connecting the terminal of the cable and the bushing 10, and a terminal connection box 3 accommodating the connection part 2. The terminal connection box 3 includes a coolant vessel 20 accommodating a terminal of the bushing 10 on the low-temperature side and the connection part 2 and filled with a coolant for cooling the terminal and the connection part 2 and a vacuumed vessel 30 disposed so as to surround the coolant vessel 20. The vacuumed vessel 30 includes a first vacuum part 31 where a vacuum can be maintained irrespective of the presence or absence of the bushing 10.