Improved Reversible Pump-Turbine Installation
AssigneeHenry K. Obermeyer
InventorsHenry K. Obermeyer, Claudiu M. Iavornic, Grant Quinn Baker
Life of this patent
Estimating the term…
Abstract
The present invention is a reversible pump-turbine installation position in a vertical shaft instead of in a conventional underground powerhouse or deep concrete powerhouse. The required plant cavitation coefficient may be achieved by simply boring a vertical shaft to the required depth rather than routing the water flow to and from a deeply buried powerhouse. A pneumatically controlled pressure relief valve may be incorporated into this invention.
Claims17
A pumped storage system comprising:
- an upper water storage basin,
- a lower water storage basin,
- a reversible pump-turbine connected to said upper water storage basin by a penstock conduit and also connected to said lower water storage basin by means of a tail water conduit,
- a motor-generator operably connected to said pump-turbine;
- wherein said pump-turbine comprises multiple stages, and wherein said pump turbine is positioned in a vertical shaft at an elevation below the surface of said lower water storage basin, and wherein said pump-turbine is axially removable from said vertical shaft.
(canceled)
(canceled)
(canceled)
A pumped storage system having an upper water storage basin, a lower water storage basin, and a reversible pump-turbine connected to said upper water storage basin by a penstock conduit and also connected to said lower water storage basin by means of a tail water conduit, wherein said pump-turbine is positioned in a vertical shaft at an elevation below the surface of said lower water storage basin;
- wherein said pump-turbine is axially removable from said vertical shaft;
- wherein said conduits are coaxially positioned in said vertical shaft.
A reversible pump-turbine comprising:
- a submersible motor-generator.
- wherein said motor-generator is located beneath one or more pump-turbine stages,
- and wherein said reversible pump-turbine is located in a vertical shaft from which it is removable.
12-13. (canceled)
Dependencies are inferred from the claim text.