Constant-temperature regulating device used for aquaculture

The invention discloses a constant-temperature regulating device used for aquaculture. A structure of the device comprises a first fin evaporator, a control switch, an observation door, an automatic drying evaporation mechanism, fixing bottom feet, pressure gauges, a second fin evaporator, a first draught fan, a logo, a second draught fan and a heat dissipation groove; and the fixing bottom feet are two and separately welded to two ends of the bottom of the automatic drying evaporation mechanism, and the first draught fan and the second draught fan have same sizes. The device provided by the invention realizes that a first pulley, a second pulley and a third pulley are pulled to rotate, a first spring is pulled while the first pulley rotates to make a sealing plate moved to the right to open a gap, and at the moment, a driving motor drives a fan motor to operate, a fluid is moved out through a machine shell, so that a water body with suitable temperature is conveniently obtained. The device provided by the in