Fish way structure for tower type fish watching

摘要

PURPOSE: A tower type fish way structure for observing fishes is provided to smoothly guide the fishes to an upper stream, and to automatically fill the water in a dry season. CONSTITUTION: A tower type fish way structure for observing fishes comprises a sump tank(10), a fish guide tank(20), an observation fishway(30), a first cutoff door(40), and a second cutoff door. The sump tank is installed at the upper stream of a weir(1). The fish guide tank is installed at the lower stream of the weir. Both ends of the observation fishway are connected to the upper part of the fish guide tank and the lower part of the sump tank, respectively. The first cutoff door is installed at an opening of a main water collecting pipe(11). The main water collecting pipe is connected to one side of the sump tank. The first cutoff door is installed to be opened and closed by a first door cylinder. The second cutoff door is installed at the leading end of a main drain pipe(22). The main drain pipe is installed at the rear part of an aggregating tank connected to the fish guide tank. The second cutoff door is installed to be opened and closed by a second door cylinder.