Angle-controllable interfacial evaporator for combined heat and power and preparation method thereof

Abstract

The present application relates to an angle-controllable interface evaporator for combined production of water and electricity and a preparation method thereof, which is prepared by coating ramie yarn on the surface of conductive wire, and surface modification is carried out by using sodium alginate and polyaniline, and polystyrene foam is used as a floating heat insulation layer. The copper wire and constantan wire in the core layer endow the yarn with rigidity, so that the bending angle can be controlled. The photo-thermal conversion performance of polyaniline is combined with specific structural design to realize efficient light collection effect and double-sided evaporation, thereby improving the water evaporation performance. The ramie yarn wrapped with sodium alginate gel film has good hydrophilicity, which ensures continuous water supply and the efficiency of rapid dissolution of crystalline salt, and the polystyrene foam layer reduces heat loss. The lower end of the evaporator is immersed in water to maintain low temperature, and the upper end is exposed to sunlight to increase temperature, so that the prepared evaporator can rely on green and environmentally friendly solar energy to produce fresh water and electric energy. The polyaniline preparation process is mature, and sodium alginate is easy to obtain and green, so the present application provides an effective and environmentally friendly solution for obtaining fresh water and energy.

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