Relay station system for long-distance submarine superconducting cable

Abstract

Provided is a relay station system for a long-distance submarine superconducting cable, which relates to the field of relay stations. The relay station system is used for a submarine superconducting cable. The submarine cable housing is partially stripped, creating three transmission segments. The relay station system includes a shaft-type operation and maintenance platform, a refrigeration station, and a coolant circulation device. The coolant circulation device includes an inflow cooling pipe, an outflow cooling pipe, two refrigerant storage tanks, and two intermediate cooling pipes. The refrigeration station is in the second refrigerant storage tank. Refrigerant from the first transmission segment and storage tank enters the second tank, cools, and moves to the third segment and first tank. This application addresses refrigeration and relay issues for long-distance submarine superconducting cables, facilitating operation and maintenance, including for seabed-laid cables and other relay signal devices, while reducing overall maintenance costs.