Automatic drainage device for emptying, filling and drying of water of conditioner tray and evaporative cooling towers, comprises tray at bottom, where tray is cradled into drain hole, which is connected with conduit

摘要

The automatic drainage device comprises a tray (9) at bottom (10), where the tray is cradled into a drain hole (1), which is connected with a conduit (15). A solenoid valve (2) is interposed in the conduit to discharge liquid. The device has a main water supply that is installed with another solenoid valve (7), where a locking mechanism is provided at each level of drainage, preferably a buoy (8) is provided on the tray.