Underwater washing method and device.

摘要

The invention relates to a method for jetting a pressurized water flow against a material M under water W to cause cavitation to wash the material M. A negative pressure generated by the pressurized water flow (2,3) is used to suck an air current and mix it into the pressurized water flow. A near-infinite number of bubbles are thus directed at the material M through the pressurized water flow. As a result, the control of the water flow controls the movement of the bubbles, and the disturbance caused by the bubbles, the shock wave caused by the bursting of the bubbles, and the turbulent force of the flow serve to wash the material M.