Study On Water Hammer Protection Scheme Of Pressure Conduit Many Ups And Downs Inlong Distance

With the further acceleration of urbanization and increasing the quality of life of residents, the need for large and long distance water delivery system is more and more pay attention to the problem of explosion engineering. The water column separation and disconnection water hammer often occurs in the long distance pressure pipeline, caused by water hammer damage is very serious. The water hammer accident is the most, the most difficult protection often occurs in many ups and downs of pressure pipeline. Therefore, the number of volts of long distance pressure pipeline water hammer protection scheme analysis is extremely important. Especially in the actual application, this technology is needed, according to the operating characteristics of the water conveyance project, the optimization of water hammer protection measures. This paper mainly focuses on the study of many ups and downs of long distance pipeline water hammer protection scheme.In this paper, on the basis of predecessors’ research shows the common characteristics of the water hammer protection measures, characteristics and selection of relevant requirements, the best water hammer protection scheme were discussed, and put forward to attaches great importance to the problem of water hammer protection measures. And combined water hammer applicable conditions and scope of various water hammer protection measures, main points of design technology, as analyzed in long distance water supply pipeline adopts box-type two-way regulating tower for water hammer protection, the effect is remarkable..Finally, this paper respectively safety water supply project and the case with golden sand dabie mountain high quality water supply project are both more ups and downs, long distance water conveyance pipeline distance analysis simulation calculation of water hammer protection scheme. By comparing the calculation results under different water hammer protection measures, in water hammer protection scheme, combined with different water hammer protection measures performance in different effect, summed up the many ups and downs of long distance water conveyance project of pressure is the most ideal water hammer protection measures:(1) slow close check valve installed in the pump outlet;(2) box-type two-way regulating tower etc. Installed in some important parts of the pipeline;(3) with. common exhaust requirements in the appropriate location of the pipeline installation which has the function of constant speed buffer type exhaust valve, etc. Use a variety of comprehensive protection, water hammer protection measures to prevent the pipeline water hammer pressure effect is more obvious...