To ensure a simple and compact structure by connecting a main gas annular conduit with a main gas supply pipe line upstream and connecting a pilot gas annular conduit with a pilot gas supply pipe line upstream, and connecting the main gas annular conduit and the pilot gas annular conduit with an annular combustor downstream.
A main gas annular conduit 13 and a pilot gas annular conduit 14 are connected with a main gas supply pipe line 15 or a pilot gas supply pipe line 16 upstream, respectively, and are connected with an annular combustor 1 downstream. In operation of a gas turbine main gas introduced into the main gas annular conduit 13 through the main gas supply pipe line 15 and the pilot gas supply pipe line 16 and pilot gas introduced into the pilot gas annular conduit 14 are distributed to a main gas pipe 18 and a pilot gas conduit 19 of a double cone burner 4 in a pressure resistant burner hood 3. All connection parts of the fuel pipings are welded to improve reliability of the operation of the gas turbine.
KURAUSU GUUTEIIRU
MARUTSUERU KEENITSUHI
PIITAA SHINIA
