ELECTROMAGNETIC DEVICE FOR FIGHTING AGAINST SCALE, MAINLY IN PIPELINES, IN OIL PRODUCING AND WATER INTAKE WELLS Russian patent published in 2010 - IPC F28G7/00 B08B3/10 

FIELD: electricity.

SUBSTANCE: device includes the following devices eclectically connected to each other: control unit consisting of power source, of pulse-series generator and pulse commutator, and electromagnetic three-pole converter arranged on the pipe body, which is intended for liquid flow through it and creating magnetostrictive effect with pulse variable electromagnetic field. Converter is made in the form of three in-series arranged windings on external surface of the pipe performing the function of ferromagnetic core; at that, generator is provided with possibility of impact of pulse bursts of electromagnetic field with frequency of 10-5000 Hz and with possibility of creation in the converter of travelling electromagnetic field with effect of its subsequent displacement from winding to winding in longitudinal direction. Two outputs of power source are connected to inputs of generator and pulse commutator respectively; output of generator is connected to input of commutator, and output of the latter is connected to converter input.

EFFECT: increasing effective cleaning owing to eliminating parasite heating effect of ferromagnetic core of electromagnetic converter, increasing magnetostrictive effect in the core at operation and enlarging range of impact.

4 cl, 2 dwg