GAS TURBINE COMBUSTOR, AND GAS TURBINE

摘要

PROBLEM TO BE SOLVED: To provide a gas turbine combustor capable of enhancing a cooling effect around the weld line of an inner cylinder, and a gas turbine having the same.

SOLUTION: The gas turbine combustor 2 is arranged in a space 9 in the casing of a gas turbine 1. The inner cylinder 12 of the combustor 2 is formed in a cylindrical shape by making ends of plate members of a curved shape be butted against each other and welding them along a weld line 16. There is provided a communication pipe 20 for communicating the internal space of the inner cylinder 12 with then internal space of the inner cylinder 12 of the adjacent combustor 2. The position of the weld line 16 of the inner cylinder 12 is matched with the connecting position of the communication pipe 20 to the inner cylinder 12. A cooling air hole for introducing cooling air from the space 9 in the casing to the inside of the internal cylinder 12 is formed in the communication pipe 20 or in the vicinity of the communication pipe of the cylindrical member.

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