Salt mine gas storage cylinder - has sealed ring expansion chamber on cover plate with compressed air connection

摘要

An annular expansion chamber is welded on round the cover plate with a connection to a compressed-air pipe This is sealed from the break with a sealing substance, e.g. epoxy resin, with limited elasticity and resistant to gas. A hollow space is formed at an interval from the rock, filled via a pipe duct with a satd. fluid held under pressure. The expansion chamber can be coated with sealing material on both sides, and lie against the break, bounding the hollow space. This is widely applicable, well sealed and secure, and eventually permits re-sealing without disturbing gas storage.