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AssigneeALSTOM Renewable Technologies
InventorsYves Bouvet, Jean-Francois Bertea
Estimating the term…
The invention relates to a Pelton turbine that comprises a plurality of sub-assemblies arranged about the rotation axis of the wheel and each including a bucket (111) and an anchoring leg (112). At least one blocking pin (13) is provided in a direction (X13) parallel to the rotation axis (X1) of the wheel between two adjacent anchoring legs (112, 112′), wherein said pin is inserted into two housings (1126, 1127) respectively formed in the two anchoring legs (112, 112′). According to the method of the invention, the blocking pin (13) is placed by inserting the same into the two housings (1126, 1127) of two adjacent anchoring legs (112, 112′). The pins are placed into the housings with a clearance, thereby allowing the relative sliding of the anchoring legs (112, 112′) before blocking them with the pins (13).
A Pelton turbine wheel comprising several subassemblies distributed about an axis of rotation of the wheel and each comprising a bucket and an anchoring leg, characterized in that a cylindrical locking pin with a circular section is placed, in a direction parallel to the axis of rotation of the wheel, between each pair of two adjacent anchoring legs, this pin being engaged simultaneously in two housings arranged respectively in the two anchoring legs and in that the pins are placed in the housings with the possibility of relative movement of the subassemblies under load and of movement of the pins engaged in the housings, until the pins lock the various anchoring legs relative to one another.
A method for mounting a Pelton turbine wheel comprising several subassemblies distributed about an axis of rotation of the wheel and each comprising a bucket and an anchoring leg, characterized in that it comprises steps consisting in:
Dependencies are inferred from the claim text.