EQUIPMENT DESCRIPTION

(1) Thermal recompression unit (2) Steam for heating (3) Feed in (4) Calandria (5) Feed out (6) Vapor Separator (7) Pre-heater (8) Condenser (9) Cooling water in (10) Cooling water returnTHERMAL RECOMPRESSION UNIT

Uses a sonic nozzle jet and high pressure steam to recompress a lower pressure steam/vapour. In the live steam nozzle (1) the pressure of the in-flowing steam is converted into velocity. A jet is created which draws in the low pressure vapour. In the diffuser (2) a fast flowing mixture of live steam and vapours is formed, the speed of which is converted into pressure (temperature increase) by deceleration.

CALANDRIA EVAPORATOR

TheCalandria Evaporatorhas a heat exchanger (with tubes usually less than six feet long) integral with the vapour body. The level is maintained in the upper portion of the tubes and the circulation pattern is up through the tubes and down through a central pipe called a "downcomer". Circulation is created by the difference in specific gravity between the body liquor and the heated liquor and vapor generated inside the tubes, plus a vapour lift effect.

VAPOUR-LIQUID SEPARATORGravity causes the liquid to settle to the bottom of the vessel. The vapour travels upward at a design velocity which minimizes theentrainment of any liquid droplets in the vapour as it exits the top of the vessel.PRE-HEATER Pre-heater is a device for preliminary heating of a material, substance, or fluid that will undergo further use or treatment by heating. CONDENSERIt is an apparatus in which vapour is condensed within tubes that are cooled by the evaporation of water flowing over the outside of the tubes.