UNDERWATER INSTALLATION-TYPE WATER-FLOW POWER GENERATION SYSTEM

摘要

An underwater installation-type water-flow power generation system including a weight body fixed/installed on a sea bottom of a sea area with an ocean current, a power generating device including a diagonal plate opening portion moored by the weight body through a mooring fixture and provided on a front part of a power generating device body, a variable blade type rotary impeller, and a power generator for obtaining a power generation output by using a rotary force of the variable blade type rotary impeller; and a buoyancy body floated/arranged in the upper ocean current area of the power generating device body and applying a tension to the power generating device body through a pulling tool so that the diagonal plate opening portion of the power generating device body is directed to a certain direction faced with a direction of the ocean current at all times.

主权项

1. An underwater installation-type water-flow power generation system comprising:
a weight body fixed/installed on a water bottom of a water area with a water flow of the sea or river; a power generating device including the power generating device body arranged in a water flow area above the weight body in the water area and moored by the weight body through a mooring fixture, a diagonal plate frontage portion for water-flow inflow provided on a front part of this power generating device body, a variable blade type rotary impeller provided on a rear part of the power generating device body, and a power generator for obtaining a power generation output by using a rotary force of the variable blade type rotary impeller; a hollow tank incorporated in the variable blade type rotary impeller and generating buoyancy equal to a weight of the rear part from an intermediate part in an entire weight of the power generating device body; and a buoyancy body floated/arranged in the upper water-flow area of the power generating device body and applying a tension to the power generating device body through a pulling tool so that the diagonal plate frontage portion of the power generating device body is directed to a certain direction faced with a direction of the water flow at all times which is the buoyancy body for joining so that a force of buoyancy is applied only to a range from a tip end portion of the diagonal plate frontage portion of the power generating device body to a front part from a substantially intermediate part of the power generating device body; wherein by means of a mutual action of the buoyancy balance on the rear part side from the intermediate part by the hollow tank and the application of the tension to the front part of the power generating device body by the buoyancy body through the pulling tool, position control is executed so that the diagonal plate frontage portion is directed to the certain direction faced with the direction of the water flow at all times.