本发明公开了一种混凝土坝体防冰装置，包括气泵、输气管体以及传输管体，所述气泵的输出端连接有输气管体，所述输气管体上均匀连接有多个传输管体，还包括气泡发生单元，所述气泡发生单元包括第一气泡管以及第二气泡管，各个所述传输管体上各安装有一第一气泡管，各个所述第一气泡管上各滑动密封安装有一第二气泡管，各个所述第一气泡管和第二气泡管上都均匀设置有多个出气孔，通过调节第二气泡管在第一气泡管上的位置来实现出气孔数量的调节；由于第一气泡管以及第二气泡管上均设置有出气孔，气体通过出气孔排入到水中释放大量微气泡，通过微气泡在水中的运动扰动水体形成热量交换，从而有效阻止冰层的形成。

The invention discloses a concrete dam body anti-icing device which comprises an air pump, an air delivery pipe body and transmission pipe bodies, the output end of the air pump is connected with the air delivery pipe body, the air delivery pipe body is evenly connected with a plurality of transmission pipe bodies, the concrete dam body anti-icing device further comprises a bubble generation unit, and the bubble generation unit comprises a first bubble pipe and a second bubble pipe. Each conveying pipe body is provided with a first bubble pipe, each first bubble pipe is provided with a second bubble pipe in a sliding and sealing mode, and each first bubble pipe and each second bubble pipe are each evenly provided with a plurality of air outlet holes. The number of the air outlet holes is adjusted by adjusting the position of the second bubble pipe on the first bubble pipe; the first bubble pipe and the second bubble pipe are both provided with the air outlet holes, air is discharged into water through the air outlet holes to release a large number of microbubbles, the water body is disturbed through movement of the microbubbles in the water to form heat exchange, and therefore formation of an ice layer is effectively prevented.