DEBRIS REMOVAL DEVICE OF A GAS TURBINE

摘要

Disclosed is a foreign material removing device of a gas turbine. A foreign material removing device of a gas turbine according to an embodiment of the present invention includes: a combustor casing wherein a first cooling air supply passage is formed in a tangential direction of a combustor for a cooling air flow to an inner side of the combustor of the gas turbine; a first foreign material collecting unit arranged on the first cooling air supply passage and primarily filtering foreign materials contained in cooling air; a second cooling air supply passage radially extended toward a turbine blade from a circumferential direction of a torque tube positioned inside the combustor; and a second foreign material collecting unit arranged in the second cooling air supply passage and connected to the first cooling air supply passage to secondarily filter the foreign materials contained in the cooling air received through the first cooling air supply passage. The purpose of the present invention is to provide the foreign material removing device of the gas turbine capable of protecting the turbine blade and enabling the stable operation of the gas turbine.