DEVICE FOR CLEANING OF INTERNAL SURFACE OF PIPES

摘要

A method and apparatus for cleaning the internal surface of pipes mainly from solid sediments, according to which a cleaning element is inserted into the pipe cavity and rotated at a high speed while fluid is simultaneously supplied to the pipe cavity. The cleaning element comprises a plurality of roller heads with annular grooves coupled to a housing and the roller heads are shifted relative to each other in the axial direction. During cleaning, the roller heads and the housing rotate around their respective longitudinal axes in a manner such that the rotation of the roller heads is opposite in direction relative to the rotation of the housing. While rotating, the cleaning element creates spiral grooves in the sediment and cuts off the sediment along the spiral path.