Apparatus for extinguishing fires in oil storage tanks

Details Apparatus for extinguishing fires in oil storage tanks Apparatus for extinguishing fires in oil storage tanks

1994-06-14

1996-11-12

Pike, Andrew C.

Fire extinguishers

Special applications

For storage tank

A62C 306

Patent

active

055730680

ABSTRACT:
A device for extinguishing fires in a flammable liquid storage tank uses either foam or dry chemical powder, or both, as the extinguishant. The device comprises at least one annular pipe ring arranged in a horizontal plane just above the bottom of the storage tank and connected to a supply of extinguishant. When more than one ring is used, the rings are concentrically and equidistantly arranged with the outermost ring connected to the supply of extinguishant. The pipe rings have two or more diametrically connected cross-members. Vertically extending discharge pipes are situated at the junctions of the pipe rings and cross-members. The top ends of the discharge pipes are above the highest level of flammable liquid in the storage tank and are equipped with discharge nozzles. The discharge nozzles provide for uniform discharge of the extinguishant onto the surface of the flammable liquid held in the storage tank.

REFERENCES:
patent: 236203 (1881-01-01), Campbell
patent: 1860825 (1932-05-01), Thiede
patent: 2692649 (1954-10-01), McCreary
patent: 3644073 (1972-02-01), Goldsmith
patent: 4893681 (1990-01-01), Flandre

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