A heat exchanger that combines an ejector operated with steam to constantly extract air to maintain the vacuum state within the vacuum stem condenser and a condenser that condenses the used steam and reuses it. 

If air gets into the condenser and if the condenser’s vacuum decreases, the turbine performance declines. To remove air within the condenser, a steam-operated ejector is needed, and a condenser is needed to condense the operated steam. This heat exchanger consists of the one-layer ejector, interim condenser, 2-layer ejector, and final condenser. Maintenance/repair is easy as no rotating equipment is included.