Method for extinguishing fire in e.g. coal bed, involves directedly squeezing inert fluid from line under pressure in direction of fire zone by injection nozzles, and supplying fluid into or at fire zone via line

摘要

The method involves directedly squeezing inert fluid i.e. carbon dioxide, from a line (1) i.e. inner pipe, under pressure in a direction of a fire zone by injection nozzles, where the line is attached in a coal bed (2) or ballast. The fluid is supplied into or at a fire zone via the line. The squeezing of the fluid is predominantly taken place within a spatial angle preferably ranging between 10 degrees and 30 degrees. Openings (5) are formed in a drill pipe (11), and an outer pipe (13) and the inner pipe are attached in a hole (7) in the bed or the ballast for designing the line.