| 主权项 |
1. A gas turbine flame detection system, the gas turbine including a combustor having an inlet in fluid communication with a source of air, a combustion chamber, and a no-flame region between the inlet and the combustion chamber, the flame detection system comprising:
a flame detector in photonic communication with the no-flame region and arranged to emit a signal responsive to a photon emitted in the no-flame region, wherein the flame detector includes:
a photon collector arranged to receive a photon emitted in the no-flame region;a photon detector; anda photon conduit in photonic communication with the photon collector at a collector end of the photon conduit and with the photon detector at a detector end of the photon conduit such that a photon emitted in the no-flame region is received by the photon collector and travels to the photon detector through the photon conduit, the photon detector being arranged to emit a signal responsive to receipt of a photon from the photon conduit; anda controller in communication with the flame detector, the controller being arranged to determine whether the flame detector signal indicates flame presence in the no-flame region,wherein the no-flame region includes a pre-mix chamber including a cap supporting one or more fuel nozzles, the one or more fuel nozzles projecting through the pre-mix chamber to a combustion chamber of the combustor, the pre-mix chamber being a region upstream of the combustion chamber, the combustion chamber and the pre-mix chamber separated by a porous plate, the one or more fuel nozzles terminating at the porous plate,wherein the flame detector extends through the cap between and outside the one or more fuel nozzles to monitor the pre-mix chamber. |
