Solution-dropping nozzle device

摘要

A solution-dropping nozzle device comprising an inner tube of a relatively large diameter which permits a solution to flow down therethrough, and a plurality of outer tubes of a relatively small diameter adapted for supplying a cleaning solvent to the lower end part of the inner tube, the outer tubes having at least the lower end parts thereof tight-fitted on an outer circumferential portion of the inner tube so as to enclose the same continuously. The outer tubes may have the lower ends thereof positioned higher than the lower end of the inner tube. The nozzle device is free from the concentration of a dropping solution at the nozzle end part, and the eduction of a solute thereof.