FIELD: gas-and-oil producing industry.
SUBSTANCE: invention refers to procedure for filtration of chiefly transformer oil by its heating and supplying through filter from beneath upward. Also, oil is heated to temperature 70-150°C. The procedure of filtration is carried out as repeating cycles under a mode of velocity vacuum-pulse effect onto purified oil through a filter at duration of the pulse up to 5.0 sec and at pressure over 50 mm of m.c. with successive conditioning at residual vacuum during not more, than 10 min. Further, vacuum is dropped at the end of the cycle to atmospheric pressure and simultaneously the filter is regenerated by supplying dry heated air from top downward. The invention also refers to the device for implementation of the filtration procedure.
EFFECT: considerable acceleration of filtration procedure and regeneration of filter during purification of transformer oil.
6 cl, 3 dwg
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