Penult-stage moving blade of air-cooled steam turbine
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[0016] All features disclosed in this specification, except mutually exclusive features, may be combined in any way. Any feature disclosed in this specification, unless expressly stated otherwise, may be replaced by other equivalent or alternative features serving a similar purpose. That is, unless expressly stated otherwise, each feature is but one example of a series of equivalent or similar features.
[0017] The design carrier of this moving blade is an air-cooled 4F-1000MW steam turbine. The most suitable design back pressure of this machine is 13.0Kpa. Within this design back pressure range, the structure of the second and final moving blades determined in the final plan can be found in figure 1 . The blade adopts suitable alloy steel blade and rotor material, and the moving blade consists of 3 parts, namely: shroud 1, blade body 2, blade root 3. Each part is made of the same high-strength alloy steel as a whole.
[0018] (1) Leaf body design:
[0019] Leaf body stru...
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