Prevent reservoir eutrophic device

The utility model relates to a prevent reservoir eutrophic device, include: the aerator of setting under the submarine temperature stratification of reservoir, the aerator pass through gas transmission pipeline and the air compressor that sets up onshore is connected. The utility model discloses utilize gas density to be less than the principle that water density and low temperature water densityare greater than the high -temperature water volume density, make in reservoir or the lake water static relatively produce vertical and cross circulation stream through aeration process under water tochange temperature layering situation, improve the unusual reservoir ambient condition who breeds of phytoplankton, solve lower cold water phenomenon and the reservoir lake eutrophication problem ofletting out that arouses by reservoir temperature stratification simultaneously. 本实用新型涉及种防止水库富营养化装置，包括：设置在水库水底温度分层下的曝气器，所述的曝气器通过输气管道与设置在岸上的空气压缩机连接。本实用新型利用气体密度小于水体密度和低温水体密度大于高温水体密度的原理，通过水下曝气过程使水库或湖泊内相对静止的水体产生垂向和横向循环流，从而改变水温分层状况，