The utility model provides an efficient
reflux concentration device for preparing freeze-dried tea, and relates to the technical field of
instant tea, the efficient
reflux concentration device comprises a condensate water tank and a protective box, the inner wall of the condensate water tank is provided with a condensate
water net, the outer surface of the protective box is provided with a low-
voltage power supply, and the outer surface of the low-
voltage power supply is electrically connected with a low-
voltage wire; the end, away from the low-voltage power supply, of the low-voltage wire sequentially penetrates through the protection box and the condensate water tank and then is electrically connected with the inner wall of the condensate
water net. According to the utility model, the low-voltage power supply is electrically connected with the water condensing net, so that the water condensing net forms an electrified adsorption interface which can generate an
electrostatic adsorption effect on gas molecules and accelerate the conversion from gas to liquid; meanwhile, the high-voltage power supply is connected with the inner wall of the condensate water tank to form an
electric field environment, gas particles are further promoted to be gathered and condensed, the problem that traditional equipment is low in efficiency due to lack of gas capturing capacity is effectively solved, the condensate water tank is vibrated through the
vibration motor, water drops rapidly fall down, and the working efficiency is improved.