Pressure control for steam generator

摘要

A steam generator including a combustion chamber having fuel and air inlets at the upstream end and a water inlet at the downstream end to inject water into the flue gas, a vaporizer in communication with the downstream end of the combustor and a pressure control to vary the size of the discharge opening of the vaporizer and thus control the pressure within the combustor and vaporizer, including; a slideably movable plug attached to and operable by a fluid operated piston.