EFFICIENCY OF CLEANING SEWER PIPES

As a result of human activity, waste and products that are not suitable for further use are formed, which are mainly disposed of by draining them through networks of urban sewer pipelines, during the operation of which deposits of oils and salts are formed on their walls, the thickness of which constantly increases over time, as a result of which , the pipeline becomes partially or completely clogged, which subsequently becomes a serious environmental and economic problem, and requires large financial and human resources to eliminate them. Therefore, during the operation of sewer networks of urban and residential buildings, both in domestic and foreign practice, various methods of cleaning and restoring sewer pipelines are often used: mechanical, water-air, hydraulic, hydrodynamic, hydrochemical, biological, ultrasonic and others. In order to increase the efficiency of cleaning and restoration of sewer pipelines using ultrasonic vibrations, it is proposed to use the developed new magnetostrictive ultrasonic transducer. This design allows flushing water from sewer lines to be used to cool the ultrasonic converter itself, and then use the heated water to increase the efficiency of the cleaning process. The work proposes a new design of passages in sewer pipelines for relatively powerful, small-sized three-rod magnetostrictive ultrasonic transducers to increase the efficiency of their cleaning, which, in comparison with a two-rod ultrasonic transducer, allows, for given overall dimensions, to increase their output power up to 1.25 times, and for a given power, reduce overall dimensions sizes up to 1.14 times.