Heat cycle system and method for producing fresh water from brine.

摘要

Steam, for example, is produced from aqueous brine, by a system that employs preferably hot waste fluid, and nozzle means and rotary separator means generally of a known kind per se. The method steps include transferring the waste heat of combustion source (22) to the brine flowing in heater exchanger coil (23), expanding the hot brine through nozzle means (24) to form a jet of steam and liquid droplets, causing said expanded flow to rotate the rotary separator means (26) for forming a liquid layer of said droplets on the separator means by centrifugal action while separating the steam (at 28), which is used to heat the incoming brine pumped by pump (11) in condensers (14, 13). The separated liquid from the rotating layer is used to drive turbine means (29) and the condensed steam provides fresh water from the brine. Several stages of separators may be employed in series or in series and parallel. Also, the steam may be used to assist in power generation. The system described is of low first cost and low operating cost, and is simple and reliable.