Measuring the Impact Forces within the Cleaning Nozzles Sewage System

Abstract

Industrial cleaning is a classic application of water jets technology. In the late 1950s, when reliable high pressure pumps were built, the usage of water jets spread widely in the field of pipes and sewerage cleaning. In our particular case, water jets with less than 340 bar pressure are being used. The experiment is the research method used in the study of the impact forces that occur in the sewerage cleaning head system. In order to measure the impact forces between the water jet and a flat and rigid surface, we designed and built a stand for generating pressure jets, as well as a device to measure the impact force. Using the impact forces measured were calculated the coefficients of discharge, speed and contraction of water jet at the outlet of nozzle.

Determining the Equation of the Impact Forces Produced by Water Jets Used in Sewer Cleaning

“…(Taguchi method) [6] Experiment no Based on Fig. 1 results the influence of the parameters and their interactions on the impact force F, in correlation with the results shown in the work [5]:…”

“…For this purpose the Taguchi method was used [6,7]. For carrying out the experiments a stand to generate the water jets and a device for the measurement of the impact forces were used [5].…”

“…The impact forces are determined by the process parameters. The process parameters and their values, according with [5] are:…”