HYDRAULIC TURBINE AND HYDROELECTRIC POWER PLANT
First Claim
1. A turbine for hydraulic power generation comprising two bladed wheels successively arranged in a turbine tube section as a fore wheel and an after wheel with respect to the water flow direction along a common rotation axis extending in the water flow direction, the wheels being configured to rotate in opposite directions driven by the water flow, wherein a first gear and a second gear are arranged along the rotation axis, wherein the first gear is connected to the fore wheel and the second gear is connected to the after wheel such that each of the first and second gear is configured to rotate around the rotation axis driven by the respective wheel, and the first gear and the second gear are connected via an engagement gearing such that the fore wheel and the after wheel are coupled to each other with respect to their rotation speed, the engagement gearing being connectable to a power generator.
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Accused Products
Abstract
The present disclosure relates to a turbine for hydraulic power generation comprising two bladed wheels (11, 12, 31, 32) successively arranged in a turbine tube section (10, 21) as a fore wheel (11, 31) and an after wheel (12, 32) with respect to the water flow direction (23) along a common rotation axis (30) extending in the water flow direction (23), the wheels (11, 12, 31, 32) being configured to rotate in opposite directions driven by the water flow, and to a corresponding hydroelectric power plant. In order to improve the turbine characteristics for hydraulic power generation, in particular in view of low head power generation, the invention suggests that a first gear (46) and a second gear (47) are arranged along the rotation axis (30), each connected to a wheel (11, 12, 31, 32) and mutually connected via an engagement gearing (48) such that the fore wheel (11, 31) and the after wheel (12, 32) are coupled to each other with respect to their rotation speed, the engagement gearing (48) being connectable to a power generator.
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Citations
20 Claims
- 1. A turbine for hydraulic power generation comprising two bladed wheels successively arranged in a turbine tube section as a fore wheel and an after wheel with respect to the water flow direction along a common rotation axis extending in the water flow direction, the wheels being configured to rotate in opposite directions driven by the water flow, wherein a first gear and a second gear are arranged along the rotation axis, wherein the first gear is connected to the fore wheel and the second gear is connected to the after wheel such that each of the first and second gear is configured to rotate around the rotation axis driven by the respective wheel, and the first gear and the second gear are connected via an engagement gearing such that the fore wheel and the after wheel are coupled to each other with respect to their rotation speed, the engagement gearing being connectable to a power generator.
Specification