Patent ID: 8968680
Filing Date: 2015-03-03
Classification: B01L,G01N

Abstract:
1. A cleaning device that cleans a liquid storage part of a vessel for storing liquid, the cleaning device comprising: a cleaning liquid discharge nozzle coupled to a cleaning liquid container storing cleaning liquid that discharges the cleaning liquid to the liquid storage part; a liquid suction nozzle of which tip is positioned below the cleaning liquid discharge nozzle configured to suck liquid stored in the liquid storage part; a first overflow suction nozzle of which tip is positioned above the tip of the cleaning liquid discharge nozzle, the first overflow suction nozzle coupled to an exhaust pump configured to suck liquid from the liquid storage part; a second overflow suction nozzle of which tip is positioned above the tip of the first overflow suction nozzle, the second overflow suction nozzle coupled to the exhaust pump configured to suck liquid from the liquid storage part; and a clog detecting unit coupled to the second overflow suction nozzle, wherein the clog detecting unit comprises at least one sensor operatively linked to a controller programmed to detect clog in the first overflow suction nozzle by detecting suction of liquid by the second overflow suction nozzle, wherein the cleaning liquid discharge nozzle, liquid suction nozzle, first overflow suction nozzle, and second overflow suction nozzle are held parallel in a nozzle group.