Single and Two Stage Steam Jet Ejector

SingleStage Steam Jet Ejectors are based on the ejectorventuri principle. In operation, steam issuing through an expanding nozzle has its pressure energy converted to velocity energy. A vacuum is created and the high velocity of steam entrains air or gas and the mixture of gas and steam enters the converging end of the venturi, passes through the diffuser where its velocity energy is converted into pressure sufficient to discharge against a predetermined back pressure. Single stage steam jet ejectors are used to create vacuum covering 40 mm Hg. Absolute. Two Stage Ejector with Condenser The system is the assembly of two units whose construction is similar to single stage with inter condenser (direct contact type or surface type). Steam of the first stage is expanded through nozzle entrains the air or other gases and discharges them to diffusers at a higher pressure in the condenser.