Concentrating evaporators – Closed evaporating chambers – Indirectly heated
Patent
1975-10-20
1978-04-04
Yudkoff, Norman
Concentrating evaporators
Closed evaporating chambers
Indirectly heated
159 31, 23273R, 159 1C, 165108, B01D 106
Patent
active
040826066
ABSTRACT:
An integral forced circulation evaporator apparatus which comprises an evaporating chamber, providing therein a liquid space and a vapor space, a heating zone containing vertically disposed heat exchange tubes, and a liquid receiving chamber, said evaporating chamber being surmounted on said heating zone, in direct communication with the upper ends of said heat exchange tubes, said liquid receiving chamber being surmounted by said heating zone, in direct communication with the lower ends of said heat exchange tubes; pump means horizontally disposed within said liquid receiving chamber for the circulation of liquid through said evaporator apparatus, partition means disposed within said liquid receiving chamber so as to form, within said liquid receiving chamber, a first section containing the intake side of said pump means and a second section containing the discharge side of said pump means, said partition means further being positioned such that the lower ends of a portion of the heat exchange tubes are in direct communication with only that section containing the intake side of the pump means and the lower ends of the remaining heat exchange tubes are in direct communication with only that section containing the discharge side of the pump means, and a second partition means disposed within said evaporating chamber and positioned so as to form, within said evaporating chamber, a first section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the intake side of the pump means and a second section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the discharge side of the pump means, said second partition means being formed so as to prevent liquid flow between said sections in the evaporating chamber at a point immediately adjacent the upper ends of said heat exchange tubes while permitting liquid flow between said sections at a point removed from the upper ends of said heat exchange tubes, and further being positioned so that it is not above the level of the liquid in the evaporating chamber.
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Gingrich Reynard W.
Houston James E.
Schilt Earl A.
Casella Peter F.
Ellis Howard M.
Hooker Chemicals & Plastics Corporation
Yudkoff Norman
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