Method and device for the production of purified steam

Details Method and device for the production of purified steam Method and device for the production of purified steam

2003-08-28

2009-11-03

Manoharan, Virginia (Department: 1797)

Concentrating evaporators

Processes

Film

C159S013200, C159S044000, C159S901000, C159S027100, C202S197000, C202S236000, C202S237000, C202S238000, C203S010000, C203S040000, C203S089000, C203SDIG016

Reexamination Certificate

active

07611604

ABSTRACT:
The invention relates to a method and a device for the production of pure steam. A falling-film evaporator is used. Of the water-steam mixture leaving the evaporator unit, part of the water is collected at the bottom of the device, and a fraction mainly consisting of steam enters a rising spiral channel for the separation of impurities. In the periphery of the spiral channel apertures are provided for separating impurity-containing droplets, which condense on a surface outside the apertures. The liquid formed is removed from the device. The water phase collected at the bottom enters a recycle line connected to the feed end of the evaporator unit. Feed water is supplied to the recycle line to compensate for pure steam consumption.

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