Gas turbine with a plurality of burners and a fuel distribution system, and a method for balancing a fuel distribution system

US6293105A · kind A · utility

Assignee

• Asea Brown Boveri, S.A. · CH

Inventors

• Ola Claesson · Umeå, SE
• Jaan Hellat · Baden, CH
• Werner Kessler · Wallisellen, CH
• Frank Reiss · Lauchringen, DE
• Wilfried Strittmatter · Laufenbürg, DE
• Stefan Tschirren · Nunningen, CH

Key dates

• Filing date: Jun 25, 1999
• Grant date: Sep 25, 2001
• Expiry date: Jun 25, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02C7/228
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In a gas turbine (10) with a plurality of individual burners (B1, . . . , B6; Bn) which are connected to a fuel distribution system (21) and are supplied with fuel from a common fuel feed (28) via the fuel distribution system (21), there being provided, within the fuel distribution system (21), means by which the fuel mass flows to the individual burners (B1, . . . , B6; Bn) can be varied in order to improve the operating parameters of the gas turbine (10), an improvement in the operating parameters is achieved in a simple way in that a fixed throttle member, determining the fuel mass flow to at least one of the burners (B1, . . . , B6; Bn), is arranged in the fuel distribution system (21) upstream of the at least one burner, and in that the reduction in cross section of the throttle member is selected in such a way that existing inequalities in the fuel distribution system (21) as regards the fuel mass flows to the individual burners (B1, . . . , B6; Bn) are reduced.