초록 ▼

An electronic control and dosing system for desalinators (10) has a baffle, disposed between the evaporation and condensation chambers, fitted with probes (70, 71) which detect the presence of liquid created by entrained bubbles, that pass through the holes in the baffle. A control circuit (72), con

An electronic control and dosing system for desalinators (10) has a baffle, disposed between the evaporation and condensation chambers, fitted with probes (70, 71) which detect the presence of liquid created by entrained bubbles, that pass through the holes in the baffle. A control circuit (72), connected to the probes (70,71), closes a solenoid valve (62) to shut off the supply of feed water to the desalinator (10) until the threat of entrainment has passed. A foaming and/or scale inhibiting polymer, contained in a tank (64), is periodically introduced to the feed water inlet line (63) by a solenoid valve (65) controlled by a timer circuit (66).

대표청구항 ▼

A feed water level control system for a desalinator including an evaporation chamber and a condenser zone including condenser coils, said feed water level control system including: a feed water inlet to the evaporation chamber of the desalinator; feed water valve means for controlling the flow of fe

A feed water level control system for a desalinator including an evaporation chamber and a condenser zone including condenser coils, said feed water level control system including: a feed water inlet to the evaporation chamber of the desalinator; feed water valve means for controlling the flow of feed water through the inlet in response to the feed water level in the desalinator; a perforate baffle, having openings therein and being disposed above the evaporator chamber, for allowing steam to pass therethrough to the condenser zone to be condensed; electric probe means, including a plurality of spaced probes disposed above the baffle, for detecting the presence of water created by entrained bubbles which pass through the openings in the baffle; and electronic control means, connected to said probe means and responsive thereto, for controlling the valve means such that when the water from said entrained bubbles contacts the probes, the valve means is shut off to terminate the flow of feed water to the inlet until bubbles are no longer entrained. A foam and scale inhibitor dosing unit for a desalinator including: a feed water inlet to the desalinator; feed water valve means for controlling the flow of feed water through the inlet in response to the feed water level in the desalinator; an inhibitor supply tank; an inhibitor supply valve means for controlling the flow of inhibitor from the supply tank to the feed water; and timer means for controlling said inhibitor supply valve means so as to permit a preset volume of inhibitor to be fed from the supply tank to the feed water.