METHOD FOR MODERNIZING THE ENERGY CONVERTER INSTALLATION AND MODERNIZED ENERGY CONVERSION INSTALLATION

摘要

1. The method of upgrading the installation (2) for converting hydraulic energy into electrical energy or mechanical energy, and vice versa, containing a radial-axial turbopump (20), containing an impeller (202), movable around an axis (7202), a preliminary distributor (204), containing stator blades (2040), forming between each pair of two adjacent stator blades a first water channel (61), a distributor (206) containing guide blades (2060) located downstream of the stator blades in the direction of the water flow, a turbine pump operating in a turbine mode, while the guide vanes (2060) form between each pair of two adjacent guide vanes a second water channel (62), characterized in that it includes stages in which a) reduce the height (4204) the first water channels (61), measured parallel to the axis (7202) of the rotation of the impeller (202), b) reduce the height (4206) of the second water channels (62), measured parallel to the axis of rotation of the impeller and made identical to the height (4204) of the first channels ( 61) .2. A method according to claim 1, characterized in that the stator vanes (2040) are attached between the upper flange ring (212) and the lower flange ring (210), while step a) is carried out by attaching in each first channel (61) sector (2140) deflector (214) on the upper ring and / or on the lower ring. 3. A method according to claim 1, characterized in that the guide vanes (2060) contain two opposite surfaces (20681, 20682) that are wetted by the passage of water, and chords (2062) equally spaced from two opposite surfaces, the method includes the step c) following step b