FIELD: mechanical engineering.
SUBSTANCE: cleaning of fuel tanks is carried out in "filling-draining" cycles by filling a tank with a liquid (fuel) and further draining. In this case, content of contaminating particles in the liquid, passing through the pipeline during the tank filling, and in the liquid passing through the pipeline during draining from the tank is determined. An amount of contaminating particles removed from the tank is determined by the difference of the measured contents of the contaminating particles in the liquid during the tank draining and filling. Filters for cleaning the working liquid are installed at an inlet section of a pipeline for supplying the liquid into the tank and at an outlet section of the drain pipeline. Calculation expressions to determine content of the contaminating particles in the liquid passing through the pipelines, as well as to determine a volume of the liquid required to remove the given weight of the contaminating particles from the tank, are given.
EFFECT: application of the invention permits to determine the amount of contaminating particles removed from the tank and left in the tank at the selected cleaning modes, reduce rates of the working liquid consumption, determine the liquid volume, required to achieve the specified cleanness, and reduce the complexity of the cleaning process.
3 cl, 2 dwg
