METHOD OF ULTRASOUND CLEANING AND DRYING INNER SURFACES OF FUEL TANKS Russian patent published in 2016 - IPC B08B3/12 B08B9/00 

FIELD: machine building.

SUBSTANCE: invention relates to machine building and can be used in space rocket, aviation and other industries, in which systems are used including tanks, in particular, fuel tanks, the main structural element of which is a shell of waffle structure. Method involves arrangement of ultrasound radiators on the outer surface of a fuel tank in crosslines of waffle material cells of the fuel tank shell in horizontal rows uniformly along the height of the fuel tank. Fuel tank inner surface is wetted by filling it with water and all radiators are switched on. After 30 minutes successively reduced is the water level in the fuel tank and switched off are the ultrasound radiators. When the water level reaches the line of the underlying ultrasound radiators row, the overlying row ones are switched off. Last row of the radiators is switched off in 90-120 minutes after complete release of the tank from water.

EFFECT: using the invention provides the required level of industrial purity of fuel tanks.

1 cl, 3 dwg