WATER CULTIVATION MACHINE CAPABLE OF ACTIVATING LARGE POND, LAKE, AND BAY

摘要

PROBLEM TO BE SOLVED: To provide a water cultivation machine with a small energy consumption that can prevent generation of sludge at the bottom of a natural pond, lake, bay and the like, and purify water by changing large water area into large fishing ground .SOLUTION: Flow is generated by paddling with a flat plate. The configuration of the flat plate is designed so as to satisfy five design condition expressions using a width W of a water paddling plate 7, a distance R between the tip of the water paddling plate 7 and a rotational axis 9, a power P for rotating the plate, and a rotational speed of the plate. In a large and deep pond, lake and bay where difference in density is large between surface water and bottom water, the bottom water is elevated with a water paddling plate 7 having a broader width W1 and shorter R1. The Elevated water is spread to a large area with a water paddling plate 7 having a narrower width W2 and longer R2 so that the function for generating a layer flow in large bottom water is exerted at a maximum.