US 2014/0048407 A1 · MULTI-EFFECT EVAPORATOR

Abstract

A multi-effect evaporator, having an upstream and a downstream end, adapted for distillation of water. It includes a plurality of effects connected in a series manner and arranged into groups. Each group has a common parallel water feed inlet adapted to supply all effects in the group with feed water. The evaporator further includes a main feed water line in fluid communication with the most upstream group. An array of heaters is disposed along the line, adapted for heating the feed water before its entry into the effects of the latter group. Each effect includes means for forwarding the second outlet vapor into one of the heaters for heating the feed water. Each group includes a pump adapted to extract the concentrate from the effects of the group and pump it into the common parallel water feed of an adjacent downstream group.

Claims27

Dependent claims

A thermal desalination system, comprising an evaporator having at least one group of effects having at least two effects, wherein each group consists of:

(a) at least one vapor inlet;
(b) at least one water inflow line, configured to be fed by a single feed water line;
(c) at least one concentrate outflow line, configured to be drained into a common concentrate drainage line;
and
(d) at least one distillate outflow line.
Wherein said groups are configured to be serially connected through their respective common concentrate drainage lines;
wherein a main feed water line is configured to feed the at least one water inflow line of the first group in the series and the common concentrate drainage line of any preceding group is configured to feed the at least one water inflow line of its adjacent following group.

4 more elements

Dependencies are inferred from the claim text.

Multi-effect evaporator

Life of this patent

Multi-effect evaporator

Life of this patent

Abstract

Claims27