Concentrating evaporators – Superheating and pressure release
Patent
1986-02-10
1987-07-28
Bashore, S. Leon
Concentrating evaporators
Superheating and pressure release
159 3, 159 5, 159 131, 159 431, 159 481, 159 49, 159DIG2, 202235, 202236, 202254, 203 88, 203 89, 203 90, 165115, B01D 122, B01D 306
Patent
active
046830251
ABSTRACT:
A method and apparatus for converting a long tube vertical evaporator to a falling film evaporator in a manner which permits salvaging most of the long tube vertical evaporator structure. The bottom chamber of the existing evaporator is extended to define a flash chamber intermediate the existing heat exchanger chamber and the bottom chamber. A vapor riser conduit is provided for directing vapor from the flash chamber to the vapor separation chamber positioned above the heat exchanger chamber. A recirculation conduit is provided for directing liquid from the bottom chamber therethrough into a distribution chamber which is provided above and in communication with the upper ends of the heat exchange tubes positioned in the heat exchanger chamber. The distribution chamber is preferably provided with a plurality of spray nozzles which communicate with the recirculation conduit to evenly distribute a film of liquid downwardly through the heat exchange tubes.
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Bashore S. Leon
Manoharan V.
The Graver Company
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