Anti-evaporation system

The utility model relates to the field of hydraulic evaporation prevention systems, in particular to an evaporation prevention system. The system comprises coated cloth (3) which can shade the sun and reduce airflow convection on the water surface, and is characterized in that a polystyrene foam floating plate (7) is arranged below the coated cloth (3), and the polystyrene foam floating plate (7) can support the coated cloth (3) so that the coated cloth (3) can keep a distance from the water surface and cannot fall into water; and the coated cloth (3) is formed by mutually butting one or more pieces of coated cloth (3). 本实用新型涉及防止水力蒸发系统领域，尤其涉及一种防蒸发系统。该系统包含涂层布(3)，涂层布(3)能够遮阳以及减少水面的气流对流，其特征在于，涂层布(3)下方布置有聚苯乙烯泡沫浮板(7)，聚苯乙烯泡沫浮板(7)能够托起涂层布(3)使得涂层布(3)与水面保持距离而不落入水中；涂层布(3)为一整块或者多块涂层布(3)彼此对接起来。