Heat recovery steam generator

Details Heat recovery steam generator Heat recovery steam generator

1998-04-03

2000-07-25

Leung, Philip H.

Liquid heaters and vaporizers

Industrial

Waste heat

122 6A, 12223523, 1224512, F22D 700

Patent

active

06092490&

ABSTRACT:
The water flow circuit for a heat recovery steam generator is a hybrid system which combines a circulating drum type circuit and a once-through circuit. A low pressure evaporator is designed for natural or forced circulation and a high pressure evaporator is designed for once-through flow. Orifices may be located in the inlet of the evaporator tubes for flow stability and an intermediate header between the evaporator and high pressure superheater improves stability, minimizes orifice pressure drop and equalizes pressure losses between evaporator tubes.

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