Patent ID: 8650873
Filing Date: 2014-02-18
Classification: F22B,Y10T

Abstract:
1. A water recirculation system for a steam power plant that creates combustion flue gases, the steam power plant also employing an economizer positioned within the combustion flue gases, the water recirculation system comprising: an economizer link which receives heated water from a downcomer and transports the heated water to an economizer positioned within said combustion flue gases where the heated water is mixed with economizer feedwater; and a recirculation pump connected to the economizer link adapted to pump the heated water through the economizer link to the economizer when an increase in temperature of the combustion flue gases is desired, wherein the recirculation system is turned off to stop the flow of the heated water from passing through the economizer link when an increase in the temperature of the combustion flue gases is not desired.