▎ 摘　　要

NOVELTY - Drip irrigation polyurethane sponge seawater evaporation structure comprises a double-layer evaporation structure and a drop irrigation type water adding pipe, the double-layer evaporation structure includes a hydrophilic photo-thermal layer and a hydrophobic heat insulation layer, the drop irrigation type water adding pipe is set above the hydrophilic photo-thermal layer, the material of the double-layer evaporation structure is polyurethane, sponge side of the modified photo-thermal hydrophilic material is modified to obtain the hydrophilic photo-thermal layer and the unmodified side is a hydrophobic heat insulating layer. USE - The structure is useful for seawater desalination technology field for accelerating change and desert drought and desalting water. ADVANTAGE - The structure has simple technique, low cost, using soaking, realizes coating process and suitable for mass production. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the drip irrigation polyurethane sponge seawater evaporation structure.