Patent ID: 8276382
Filing Date: 2012-10-02
Classification: F01K,F02C,Y02E

Abstract:
1. A method for pre-warming a heat recovery steam generator and associated steam lines, the method comprising: providing heating steam from a steam source to pre-warm the heat recovery steam generator prior to generating steam from the heat recovery steam generator; directing the heating steam to a superheater of the heat recovery steam generator to warm at least a portion of the superheater; directing at least a portion of the heating steam from the superheater to at least one bypass line of the heat recovery steam generator; maintaining the at least a portion of the heating steam from the superheater in the at least one bypass line until a predefined temperature or pressure is attained; and directing the at least a portion of the heating steam in the at least one bypass line at the predefined temperature or pressure to a reheater of the heat recovery steam generator to warm at least a portion of the reheater.