US 10,487,793 B2Granted

Method for mounting a guide apparatus

AssigneeVoith Patent GmbH

InventorGebhard Salcher

Life of this patent

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Abstract

A method of mounting a guide apparatus of a large hydraulic machine with a vertical axis of rotation and wherein the axes of the guide blades extend vertically as well. The method includes the following steps: assembling an assembly with at least the upper guide wheel ring or the turbine cover and all the guide blades of the guide apparatus. This assembly does not take place in the machine shaft and the guide blades are mounted in a suspended manner, lowering the guide blades to mutually different height levels within the assembly such that the lowered guide blades can be displaced upwardly, installing the lower guide wheel ring in the machine shaft, and installing the assembly in the machine shaft by continuous lowering, wherein the guide blades present in the assembly are successively inserted into the openings provided in the lower guide wheel ring.

Claims6

Dependent claims

A method for mounting a guide apparatus of a large hydraulic machine with a vertical rotational axis in a machine shaft, the method comprising:

assembling a subassembly that includes at least an upper guide wheel ring and all guide vanes of the guide apparatus, the assembling step being carried out remotely of the machine shaft;
mounting the guide vanes in a suspended manner with axes of the guide vanes extending vertically;
prior to lowering the subassembly into the machine shaft, lowering the guide vanes to differing heights in relation to each other inside the subassembly so that the lowered guide vanes are displaceably in an upward direction;
providing a lower guide wheel ring with openings for insertion of the guide vanes and installing the lower guide wheel ring in the machine shaft;
and
continuously lowering the subassembly into the machine shaft for installing the subassembly in the machine shaft and, during the lowering, successively inserting the guide vanes that are disposed in the subassembly into the openings provided in the lower guide wheel ring.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/554,608Filed 5 Feb 2016
Priority: DE 10 2015 203 6302 Mar 2015
Published: US 2018/0017034 A118 Jan 2018
Granted: 26 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

F03B 3/18
Stators: stator blades; Guide conduits or vanes, e.g. adjustable
F03B 3/00
Machines or engines of reaction type
F03B 3/02
Machines or engines of reaction type; Parts or details peculiar thereto: with radial flow at high-pressure side and axial flow at low-pressure…
F03B 3/06
With substantially axial flow throughout rotors, e.g. propeller turbines: with adjustable blades, e.g. Kaplan turbines