Fuel distribution system for a gas turbine with multistage burner arrangement

摘要

The system (25) has a distribution line (19) branching off from a common fuel feed line (18) and led to a burner stage (11). A control valve (22) influences fuel mass flow, and is arranged in a section of the distribution line for influencing the fuel mass flow. A restrictor (26) is preset in a fixed manner, and is arranged in another distribution line for influencing the fuel mass flow. The restrictor and another restrictor (27) are selected such that respective fuel portions of the burner stage are adjusted to fuel ratio.