This utility model discloses a circulating
evaporation device. The
evaporation mechanism's recirculation structure connects one end to the bottom of the separation chamber and the other end to the upper part of the separation chamber. A
discharge pipe connects to the top of the separation chamber. In the heating mechanism, one end of the heating coil is connected to the compressor via an inlet
pipe, and the other end is connected to the
exhaust pipe. The condensation mechanism includes a condensation component and a guide
pipe. The condensation component connects to the
discharge pipe and the
exhaust pipe, and is also connected to the compressor via the guide pipe. The condensation component has a drain port. The fan's inlet and outlet are connected to the condensation component and the separation chamber, respectively, with the outlet located above the heating coil for conveying gas to convect with the falling waste liquid. In this utility model, gas heated by the compressor enters the heating coil to heat the waste liquid. The recirculation structure enables the waste liquid to circulate and fall from top to bottom. The air conveyed by the fan convects with the heated, falling waste liquid, accelerating
evaporation and improving the evaporation efficiency.