Abstract: This paper proposes a deaerator automatic adjustment device and deaerator exhaust oxygen concentration automatically adjust oxygen concentration method,carried out the deaerator automatic regulating oxygen concentration method of research. Through to the deaerator exhaust parameters such as oxygen concentration detection,put forward reasonable deaerator exhaust oxygen door control method, adjust the deaerator,oxygen content in the exhaust oxygen content is corresponding with the load change,and to overcome the disturbance to the rest of the row of the effects of oxygen content,in order to reduce the unit loss,so as to improve the efficiency of unit.

Key words: deaerator, exhaust oxygen door, automatic adjustment, the control method