| 摘要 |
PURPOSE:To prevent leakage from an axis-sealing part by providing holes having valves which are opened upward to plates which are fitted to the axis horizontally and made convex upward, and moving the plates up and down in a soln. CONSTITUTION:Plates 2 which are made convex upward and moved up and down by means of a vertical axis 3 are fitted to the center of vessel 1. Clearance (d) is made between the edges 2a of the plates 2 and a side wall 1a of the vessel 1. When the axis 3 is moved, valve bodies 5 are moved upward and the passages of a soln. which are communicated to the upper part from the lower part of the plates are made by means of windows 5e and the soln. at the lower part of the plates is led to the rear surface of the plates 2 which are made concave downward, and flowed to the upper part of the plates through the windows 5e of valve bodies. When the plates 2 are moved upward, the valve bodies 5 are moved downward to close the holes 4 and the soln. is flowed to the lower part of the plates 2. |
