Submersible diffuser

摘要

Submersible diffuser for a hydroelectric power plant includes chambers defined in its lateral wall and which can be filled with water to sink the diffuser or with gas to float it; additionally, the diffuser has lateral rollers. The hydroelectric power plant is provided with guide surfaces positioned adjacent the water outlet thereof for receiving the rollers of the diffuser and enabling positioning of the diffuser at the water outlet. Also included is the method of submerging and positioning the diffuser at the water outlet of the power plant.