UNDERWATER DISCHARGING NOZZLE

摘要

An underwater discharge nozzle is provided to maximize the dilution efficiency of sewage by increasing the suction amount of peripheral water by increasing the flow velocity at a crossing part as an inlet port and a discharge port get narrower from an inlet end portion and a discharge end portion toward the center of the underwater discharge nozzle. An underwater discharge nozzle used for a discharge system for discharging sewage under the water is composed of fitting units(30) installed on an underwater perforated dispersion pipe at regular intervals and combined with a vertical pipe; an inlet port(40) for passing sewage flowing from the fitting units; a discharge port(50) connected to the inlet port to discharge the sewage flowing from the inlet port; and a suction port(60) installed at the spot where the inlet port and the discharge port join together, at right angle to the flow of the sewage, in order to suck the water.