Hydraulic shock damper with and without diaphragm

Abstract

Abstract The article provides an analysis of scientific papers devoted to the study of hydraulic shock absorbers used in pumping stations with long pressure pipelines. The efficiency of pumping stations depends on ensuring trouble-free operation - the reliability of pressure-hydraulic systems. The reliability of pumping units and long pressure pipelines is ensured using the proposed designs of hydraulic shock absorbers. In the experimental study of hydraulic shock absorbers, modern scientific instruments were used. The authors of this work have developed a special pressure sensor to record changes in hydrodynamic pressure during hydraulic shock. The paper presents the results of experimental studies of hydraulic shock absorbers with and without a diaphragm. At the same time, a reliable agreement was obtained between the results of calculations of hydraulic shock absorbers with and without a diaphragm using the proposed method with experimental data. The performed research experiments prove that the damper with a diaphragm is a very effective and economical water hammer damper for long pressure pipelines of pumping stations with the values of the polytropic coefficient n=1.2. Calculations and experiments confirm that the proposed method for calculating an absorber with a diaphragm can be applied to calculate an absorber without a diaphragm.