Spray cooling device adopting intelligent variable hydrophobic surface

The invention discloses a spray cooling device adopting an intelligent variable hydrophobic surface, which comprises a spray chamber and a nozzle, wherein a heat dissipation surface to be cooled is fixed to one side in the spray chamber, the nozzle is arranged in the spray chamber and opposite to the heat dissipation surface, and the nozzle can spray a vaporific coolant to the heat dissipation surface. The spray cooling device is characterized in that the heat dissipation surface is covered with a layer of temperature-sensitive hydrogel, the temperature-sensitive hydrogel shows different hydrophilic and hydrophobic properties along with the change of temperature, the higher the temperature is, the higher the hydrophobicity of the surface is, the smaller the flow resistance is, and a coolant sprayed onto the temperature-sensitive hydrogel can take away heat on the heat dissipation surface more quickly. The spray cooling device is based on an existing spray cooling system, the wettability of the cooled surface