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Agricultural liquid ammonia pump-vapor stripper

Agricultural liquid ammonia pump-vapor stripper

Official Gazette of the United States Patent and Trademark Office Patents 1238(2)

A liquid ammonia pump-vapor stripper unit is disclosed having an impeller pump assembly which increases the system pressure before it is delivered to a receiver-accumulator where the ammonia vapor mass formed along its path from the storage tank is separated from the liquid and throttled across a variable area regulator formed between a regulator cone and a regulator ball and past a normally closed demand valve before the vapor mass is returned to the storage tank. The dew point of the liquid ammonia mass flowing through the unit is increased by the impeller pump due to the additional pressure added to the system, the liquid ammonia leaving the receiver-accumulator behaves more like a true liquid resulting in a more accurate downstream metering and a more efficient delivery of ammonia to the soil.

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Accession: 034369773

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