Fluent material handling – with receiver or receiver coacting mea – Processes – Gas or variation of gaseous condition in receiver
Patent
1996-11-04
1999-05-04
Jacyna, J. Casimer
Fluent material handling, with receiver or receiver coacting mea
Processes
Gas or variation of gaseous condition in receiver
141 2, 141 25, 141 48, 141 59, B65D 9038
Patent
active
058992430
ABSTRACT:
A method for adding or removing a liquid product to or from a tank using a breather bag attached to an upper air vent of the tank. Prior to adding a liquid product, the bag is filled with external air either by force or atmospheric pressure, and a liquid product is added to the tank between the bag and tank while simultaneously forcing the external air out of the bag by force on the bag caused by addition of a liquid product into the tank. As liquid product is removed from the tank through an outlet valve, the breather bag is sucked downward by the vacuum created between the bag and tank as the liquid product is removed. In both processes, the liquid product is separated from the external air by the breather bag, yielding the following advantages. Evaporative losses of liquid products stored in atmospheric tanks are averted. Thus, environmental pollution by product gases that would be expelled out of the tanks is avoided. The entry of flames due to fire in atmospheric storage tanks that contain flammable or combustible liquids is avoided, so that the chances of an accident are reduced. Hydrocontamination of stored liquid product by water present in atmospheric air in atmospheric storage tanks is also avoided. Likewise, contact between the stored liquid product and atmospheric air oxidizing compounds can be avoided. Finally, the entry of extraneous objects into liquid products stored in atmospheric storage tanks like insects and small animals or birds, which may infect the stored liquid products, is avoided.
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Frontenge Engenharia LTDA
Jacyna J. Casimer
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