METHOD TO AERATE WATER FLOW SUPPLIED TO HYDRAULIC TURBINE AND RELATED DEVICE Russian patent published in 2013 - IPC F03B3/00 F03B11/00 

FIELD: construction.

SUBSTANCE: pressurised compressed air is supplied into a water flow in a discharge water conduit. Some water flow from the water conduit is taken to a body 4, broken into separate jets and sent to a lower pressure area 16. Further separate water jets are broken into small drops and saturated with air. The produced gas and liquid flow is sent to hollow pylons 9 arranged across the flow. Water is supplied via pylons 9 into the gas and liquid flow. Due to narrowing and expansion of a gas and liquid flow, pressure surges are formed in it, when water drops are additionally ground with further saturation of water with air and formation of an emulsion structure. The emulsion gas and liquid flow in the channel 18 is changed to a bubble flow mode, and water saturation with air is continued due to static pressure growth. Afterwards some water flow is returned into a water conduit. Simultaneously some compressed air is sent from a pipeline 3 into a channel 11 arranged in a central body 10, where it is speeded up. Afterwards the speeded flow is sent into a wide section of the channel 11, and a lower pressure zone is created in it, through which water is sucked via hollow pylons 9 from the environment with subsequent mixing of the latter with compressed air to form the gas and liquid flow and simultaneous saturation of water with air. Afterwards the gas and liquid flow is drained into the space of the discharge water conduit that surrounds the body 4.

EFFECT: improved process of aeration of water supplied into a hydraulic turbine.

2 cl, 3 dwg