Gas Turbine Combustor

摘要

A gas turbine combustor is provided that can stably burn two kinds of gas fuels having different heating values by means of the same burner. In the gas turbine combustor that includes a combustion chamber for mixing fuel and air for combustion and a burner, disposed upstream of the combustion chamber, for jetting fuel and air into the combustion chamber and holding flames, the burner has a first swirler including a plurality of fuel holes and of air holes circumferentially alternately and a second swirler including a plurality of holes through which to jet fuel or air, the second swirler is disposed on the outer circumference of the first swirler, and each of the holes of the second swirler is greater in width than each of the air holes of the first swirler.

主权项

1. A gas turbine combustor, comprising:
a combustion chamber that mixes and burns fuel and air; and a burner disposed upstream of the combustion chamber, the burner jetting fuel and air into the combustion chamber and holding flames in the chamber; wherein the burner includes a first swirler having a plurality of fuel holes and a plurality of air holes formed circumferentially of the first swirler in an alternate manner and a second swirler formed with a plurality of holes through which to jet fuel or air, wherein the second swirler is arranged over the outer circumference of the first swirler, and wherein each of the holes of the second swirler is greater in width than each of the air holes of the first swirler.