초록 ▼

A system and a method for transferring cryogenic fluids (LNG) between a first LNG storage tank and a second LNG storage tank wherein the transfer system includes a means for cooling the transfer lines when the system is not in use. The system has two transfer lines which extend between the tanks and

A system and a method for transferring cryogenic fluids (LNG) between a first LNG storage tank and a second LNG storage tank wherein the transfer system includes a means for cooling the transfer lines when the system is not in use. The system has two transfer lines which extend between the tanks and which are fluidly connected together to form a closed loop when the system is not in use. LNG is circulated at high pressure through the closed loop during idle intervals to keep the lines at a temperature at which LNG will remain in a single phase, i.e. liquid.

대표청구항 ▼

[ What is claimed is:] [1.]1. A system for transferring cryogenic fluids between a first point and a second point including means for cooling said system when no cryogenic fluids are being transferred; said system comprising;a first transfer line extending between said first point and said second po

[ What is claimed is:] [1.]1. A system for transferring cryogenic fluids between a first point and a second point including means for cooling said system when no cryogenic fluids are being transferred; said system comprising;a first transfer line extending between said first point and said second point, said first transfer line having a first end terminating at said first point any a second end terminating at said second end;a second transfer line extending between said first point and said second point, said second transfer line having a first end terminating at said first point and a second end terminating at said second point;a conduit fluidly connecting said first, end of said first transfer line to said first end of said second transfer line;an inlet line fluidly connected to said conduit at one end and adapted to be connected at its other end to a transfer pump at said first point;a valve in said inlet line for opening and closing said inlet line;a first circulation pump at said second point having an inlet fluidly connected to one of said first or said second transfer lines and having an outlet fluidly connected to the other of said first or said second transfer lines whereby a circulating cryogenic fluid can be circulated by said first circulation pump through a closed loop formed by said first transfer line and said second transfer line, said conduit, and said first pump to thereby cool said transfer lines when said system is not in use.