Brief Discussion on the Application of the New Melting-Deicing Device (MDD) on the Flap Gate of the Yitong River

Abstract

In order to solve the winter operation problem of the flap gate of the Yitong River in Jilin Province, 4 sets of new Melting-Deicing Devices(MDD) were arranged in front of the flat gate, and the prototype observation research were carried out as well. The analysis results showed that MDD mixed compressed air into the water body during its work so that micro-nano bubbles were formed, and then the water body mixed with bubbles was pushed out and diffused horizontally under the drive of the motor, which had a high disturbance ability to the water body, and could realize the heat exchange between the bottom water body and the surface water body, thereby having an ice-thawing effect on the frozen layer, and effectively reducing the generation rate of ice nucleus in the water for the unfrozen water body, thus avoiding the generation of ice flowers and preventing the freezing of the water surface.