Boiler and modifying method thereof

US11015801B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• William Miller · Baden, CH
• Xiangmei Yin · Beijing, CN
• Gerhard Weissinger · Alsdorf, DE
• Hellmuth Brueggemann · Stuttgart, DE
• Danny E. Gelbar · Enfield, US
• Frank Michael Kluger · Stuttgart, DE

Key dates

• Filing date: May 3, 2018
• Grant date: May 25, 2021
• Expiry date: May 3, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F22G1/02
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A modification of a power boiler is disclosed, which comprises water walls enclosing the furnace for heating water and producing steam; a superheater system provided above the furnace for superheating steam; an additional superheater mounted in the furnace for further superheating steam from the superheater system. A modifying method of a power boiler is also disclosed, which comprises steps of mounting an additional superheater on water walls in a furnace; connecting an output of a superheater system to an inlet of the additional superheater; and connecting an outlet of the additional superheater to a turbine for producing power at an improved plant heat rate.