Patent ID: 7413634

Claim:
A distillation system comprising: at least one steam generating tank with means for receiving raw water from a source and generating steam and gases; at least one condenser for condensing at least some of the steam into distillate; a gas separating chamber with means for receiving gases from said at least one steam generating tank and distillate from said at least one condenser, said gas separating chamber at least partially separating gases from said distillate and said gases and discharging distillate therefrom; and a drain chamber connected to said gas separating chamber and comprising an upper section, a middle section and a lower section; said middle section having means for receiving blowdown waste water from said at least one steam generating tank, whereby at least some of said blowdown waste water flashes to steam when received in said middle section, at least some of the steam rises to said upper section, and at least some of the blowdown waste water being discharged to said lower section of said drain chamber; said drain chamber creating at least a partial vacuum to draw at least some of the separated gases from said gas separating chamber into said upper section, said upper section creating said partial vacuum by condensing steam and cooling gases within said upper section via heat transfer between the gases and steam and cooling water while the cooling water is separated from the gases and steam by at least one wall of said upper section; said lower section of said drain chamber cooling blowdown waste water and condensed liquid received from said middle section and said upper section, said lower section cooling blowdown waste water and condensed liquid via heat transfer between the blowdown waste water and condensed liquid and the cooling water while the cooling water is separated from the blowdown waste water and condensed liquid by at least one wall of said lower section of said drain chamber; said drain chamber condensing the steam to a liquid state and said lower section discharging the liquid to a drain; said upper section of said drain chamber comprising a cooling water portion and a gas condensing portion separated by said at least one wall of said upper section, said gas condensing portion having means for receiving gases from said gas separating chamber, said cooling water portion having means for receiving cooling water for cooling the gases in said gas condensing portion.