Mounting method of expansion joints and gas turbine and, expansion joint with this

摘要

PROBLEM TO BE SOLVED: To provide a telescopic joint which prevents welding defects of a bottom seal and surely allows installation of the bottom seal, and to provide a gas turbine provided with the same and a method for attaching the telescopic joint.;SOLUTION: The telescopic joint includes a boot 21, a first frame 22 and a second frame 23 which are disposed between a front part exhaust chamber 5a and a back part exhaust chamber 5b, are telescopic and forms a space inside, a heat insulation material 24 filled in the space, and the bottom seal 25 disposed between the front part exhaust chamber 5a and the back part exhaust chamber 5b so as to seal the space S. The bottom seal 25 is formed with a notch part, and an edge of the notch and the front part exhaust chamber 5a and the back part exhaust chamber 5b are fillet-welded, so that the bottom seal 25, the front part exhaust chamber 5a and the back part exhaust chamber 5b are joined, characteristically.;COPYRIGHT: (C)2013,JPO&INPIT