High efficiency three phase separating device

The utility model comprises a shell body, a gas-liquid pre-separation cylinder, a gas mist catcher, a liquid distribution device, a rectifier plate, a corrugated plate coalescer, a slope board, an overflow weir, a pressure regulating valve, an oil-gas regulating valve and a radio frequency admittance water-oil interface detection control system. The utility model is characterized in that: the upper part of the shell body is provided with the gas-liquid pre-separation cylinder, the lower part of the pre-separation cylinder is provided with a liquid distribution pipe; the rectifier plate, the corrugated plate coalescer and the slope board are sequentially arranged in the shell body which is arranged at the right side of the liquid distribution pipe; the upper part of the slope board is provided with a snake-shaped board and a heating coil pipe, the right end part of the shell body is provided with the overflow weir and an oil chamber which is separated by the overflow weir, the oil chamber is provided with a crude oil outlet and the oil-gas regulating valve; the lower part of the shell body is provided with a sand trapping and sand discharging bag and a water outlet; the left side of the oil chamber is provided with the radio frequency admittance water-oil interface detection control system which is composed of a radio frequency admittance water-oil interface detector, a control regulator and a regulating valve.