Construction method for water flow driven type hydropower plant

摘要

The present invention provides a construction method of a flow-guided hydropower plant, including the steps of: installing a support frame as a girder bridge at a predetermined point of a river or a stream; manufacturing a generator assembly by accommodating water turbines and a generator connected through the water turbines and a rotary shaft inside a housing at an outlet of the housing whose cross-sectional area becomes narrower toward a downstream side; bringing a side rib and a top rib in contact with the side and the top of the housing to alleviate the vibration of a structure, and installing the side rib and the top rib to withstand an equipment load during lifting; manufacturing a cage in a long tetrahedron shape having a constant width and length over the upstream and downstream sides of the housing so as to be suitable for installation inside the support frame, and fixing the cage to the housing; and lifting the cage with a crane to mount the cage in a space of the support frame.