Apparatus for improving oil storage tanks

Details Apparatus for improving oil storage tanks Apparatus for improving oil storage tanks

1983-05-17

1985-08-27

Chambers, A. Michael

Fluid handling

Processes

137172, 137574, 210534, F17D 100

Patent

active

045372110

ABSTRACT:
A positive-displacement mass is introduced at the lowermost portion of an oil storage tank in order to reduce the amount of undrawable oil that remains at all times below the top edge of the suction line. It is necessary that the suction line not be occluded or interfered with and that the settled water at the bottom of the tank be permitted to be drawn off. In one aspect a tray is fitted into the bottom area of the tank and filled with water, or with inert solids, to displace the oil normally held as inventory at such location. In another aspect, a coffer dam is arranged around the suction line to permit the accumulation of water in the tank bottom, and in yet another aspect the shape and placement of the suction line nozzles are altered to improve storage efficiency.

REFERENCES:
patent: 1113683 (1914-10-01), Pfahler
patent: 1135900 (1915-04-01), Hughson
patent: 1530077 (1925-03-01), Haynes
patent: 1548400 (1925-08-01), Walker
patent: 1714338 (1929-05-01), Yelmgren
patent: 2422869 (1947-06-01), Wiggins
patent: 3964873 (1976-06-01), Aramaki et al.
patent: 4107052 (1978-08-01), Yoshino et al.
patent: 4170877 (1979-10-01), Pickering

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