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.