HYDRAULIC SYSTEM OF ONE BASIN TIDAL POWER PLANT WITH WATER ENGINE WITH BLADE VARIABLE GEOMETRY Russian patent published in 2016 - IPC E02B9/08 F03B13/26 

FIELD: construction.

SUBSTANCE: invention relates to hydraulic construction and hydraulic power engineering. Device is intended for technological generating head in tide water area between sea and basin cut by a dam, and passage of water flow through four power unit water conduits with sequentially installed in three rows on 4 inexpensive and easily changeable water engines with variable blade geometry, in order to head of tide water column can be used for many times. Device comprises floating tidal power plant units sequentially arranged for multiple use of water flow, dead floating units of cut-off dam, flow-through floating units, fish-ways, navigation pass (lock) or flow-through construction coupling dams, road along the dam and gantry cranes for lifting equipment. Device comprises building power unit 1, which is included in head dam front installed after its remaining life by a tidal power plant building, as well as in addition to operating tidal power plant buildings to increase power by means of temporary guards of a dam repaired section by floating units, to ensure operating other tidal power plant buildings in standard conditions during one tidal power plant building disassembly. Building power unit 1 is collected in the place of prefabricated reinforced concrete elements 1-0 in building, having a machinery room in the centre and two water conduits 1-7 adjoining at both sides, having two-four water engines 1-1 with variable blade geometry. Water engines axis are located at the level of ocean surface at maximum low tide (mark 0.00). Basin bottom has water guide channel 5 to water engines, deepened to the blade height. Water guide channel 5 is a fish-way for fish passage during the maximum low tide.

EFFECT: invention allows replacing damaged dam cutoff units of head front and buildings of operating tidal power plants without deterioration of operating other sections of the dam by inexpensive means, replacing outdated expensive types of turbines for cheap, quickly changable water engines with variable blade geometry, as well as increasing capacity of existing tidal power plants, applying new materials and new methods of construction for tidal dams taking into account engineering development.

4 cl, 12 dwg