Patent ID: 6508206
Filing Date: 2003-01-21
Classification: F22B,F22D,Y02P

Abstract:
A feedwater heater comprising: first and second sections arranged generally side by side, with each section having an upstream face and a downstream face, each section containing tubes, with some of the tubes being at the upstream face and some of the tubes being at the downstream face, each section being configured such that hot exhaust gases will pass through it and in so doing pass over the tubes in the section; and a heat exchanger having first and second paths, each path having an inlet and an outlet and each being capable of transferring water from its inlet to its outlet, the first and second paths being organized such that heat will transfer from water in the second path to water in the first path; the outlet of the first path being in communication with the tubes of the first section at the downstream face of the first section, the tubes at the upstream face of the first section being in communication with the inlet to second path of the heat exchanger; the outlet of the second path in the heat exchanger being in communication with the tubes at the downstream face of the second section.