| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for disassembling, replacing and assembling parts of a gas turbine steam cooling system. SOLUTION: A steam cooling circuit for a gas turbine contains a bore tube assembly for supplying steam to a radial tube, and the radial tube is connected to a supply elbow. These supply tubes 56 supply steam to a manifold segment 120. Steam returned from a moving vane after used flows into a return manifold segment. A cross-over tube joins a steam supply source from the steam supply manifold segment to a first-stage moving vane. The cross-over tube returns steam from a second-stage moving vane to the return manifold segment. A return tube 58 carries cooling steam, after used, to the radial tube. The bore tube assembly, the radial tube, the elbow, the manifold segment and the cross- over tube are removable from a turbine rotor. |
