METHOD AND DEVICE FOR PREVENTION OF WIND GENERATOR BLADES ICING Russian patent published in 2019 - IPC F03D80/40 F03D7/02 

FIELD: physics.

SUBSTANCE: invention relates to wind generator blades prevention facilities. Method consists in direction of hot air flow inside blade along its front edge. Hot air performs circular circulation from the blade base to its top along the front and rear edges of the blade. Proposed device comprises vane 6 with spar 18 fitted inside, heating system 5 arranged at vane base 6 and including air heater 11, air blower 8, power control unit 12 and wireless control unit 17. Air heater 11 is connected to supercharger 8. Inside blade 6 there arranged is air duct 19, at the end of which there is deflector 21 dividing blade leading edge into two parts so that hot air movement is performed along circle from base towards blade top, and then along blade back edge back to its base. Deflector 21 is installed outside air duct 19 in 100 mm from its end.

EFFECT: invention is aimed at improvement of efficiency and operational properties.

15 cl, 6 dwg