System for storing fluid in underground hollow chamber comprises storage chamber for displacement fluid formed as underground hollow chamber

摘要

A system for storing a fluid in an underground hollow chamber comprises a storage chamber (1b) for a displacement fluid (3) formed as the underground hollow chamber. The storage chamber has a first conveying pipe (4b) for a propellant gas (9) and a second conveying pipe (6b) for the displacement liquid. The first conveying pipe is connected to a compressor (8) on a propellant gas line. An Independent claim is also included for a process for storing a fluid in an underground hollow chamber. Preferred Features: The second conveying pipe is formed from two parts, in which one end piece hangs in the lower region of the conveying pipe and extends below the liquid meniscus into the hollow chamber.