VORRICHTUNG ZUR REGELUNG DER KONZENTRATION EINER KOMPONENTE IN EINER FLÜSSIGKEIT

摘要

The device has an overflow basin (11) connected to a varnishing tank (1) and a closed alcohol bottle (2) via a flexible tube (21), such that an air bubble is formed to lift the tube till the bottle when a level of a varnish (10) in the basin falls by evaporation of an alcohol (22) contained in the varnish under a level of a junction point. The point is between the basin and the tube, which is connected to the basin by a rigid tube. The formed bubble creates high pressure in the bottle and releases an alcohol drop in the basin till the varnish level meet a normal level above the point.