Steam generator in a multi-stage distilling apparatus

Claim 1

A steam generator forming a first stage of a multi-stage distilling apparatus, comprising: a housing defining a steam generating space therewithin; a plurality of discrete, separate, tubular members defining tubular spaces for receiving incoming feed liquid; feed means for conducting feed liquid into said tubular spaces, said feed means comprise; a feed line; a plurality of branch lines for feeding the feed liquid into said steam generating space, said branch lines each connected with said feed line and a respective tubular space; means for heating the feed liquid to generate the steam, comprising electrodes situated in said tubular members; a separating space situated in a lower part of said steam generating space; a droplet separator communicating with said separating space and through which the generated steam is disposed to flow from said separating space, whereby liquid separated from the steam in said droplet separator collects in said separating space; a steam outlet connected with said droplet separator; a second stage of said distilling apparatus, with said steam outlet connected with said second stage, whereby the steam generated in said first stage constitutes feed steam for said second stage; and a heat exchanger disposed in said feed line for preheating the feed liquid.