Helmholtz damper for installing in the combustor of a gas turbine and also method for installing such a helmholtz damper

摘要

The Helmholtz damper (10) has second damping volume (12) that is arranged in series with the first damping volume (11) along an axis of the Helmholtz damper with the first end of the second damping volume detachably connected to the second end of the first damping volume to form a combined larger damping volume. The second end of the second damping volume attaches the connecting tube (15) extending from the second damping volume and through the bushing in place of a respective one of the fuel lances. An independent claim is included for a method for installing the Helmholtz damper.