Spraying defoaming device

The invention relates to a spraying defoaming device which comprises a draining open channel, a bridge and a draining open channel buried culvert outlet cross beam, wherein a pump is arranged on one side of the draining open channel; a water outlet of the pump is connected with a spraying unit; a foam blocking unit is arranged on the front surface of the spraying unit; a defoaming agent feeding opening is formed in a water inlet of the pump; the foam blocking unit is arranged on the bridge; and an emergency spraying pipe is arranged on the draining open channel buried culvert outlet cross beam. 本发明涉及种喷淋消泡装置，包括排水明渠，桥，排水明渠暗涵出口横梁，所述的排水明渠的侧上设置有泵，泵的出水口处连接有喷淋单元，喷淋单元的前面设置有拦泡单元，所述的泵的进水口处设置有消泡剂加药口，桥上设置有拦泡单元，排水明渠暗涵出口横梁上设置有应急喷淋管。