Optimization the Part of the Water Supply System of the Donja Drenova Using Pumping Stations

Abstract

Diplomski rad predstavlja idejno rješenje optimalizacije dijela vodoopskrbnog sustava naselja Donja Drenova primjenom prepumpnih stanica. U prvom dijelu rada analizirano je zadano područje, te su spomenuta važna obilježja i sa prikupljenim informacijama definirane su mjerodavne količine za različite potrošače. Nakon izračuna mjerodavnih količina prešlo se na izradu hidrauličkog proračuna gdje su se analizirali protoci, tlakovi u čvorovima, brzine i gubici u cijevima, te se napravila najoptimalnija varijanta. Izrađene su tri varijante koje se razlikuju s obzirom na dispozicije i nadmorske visine položaja izvora i prepumpnih stanica, te u dužinama tlačnog cjevovoda i različitim periodima crpljenja vode. Vodoopskrbni sustav izvodi se kao gravitacijsko-potisni (kombinirani) sustav. Dovod do vodne komore vodotornja izveden je potisnim sustavom, dok je razdjelna granasta mreža izvedena gravitacijski. Sve navedene analize izvršene su unutar Excela, pa su se zatim, nakon konverzije CAD elemenata unutar računalnog programa Urbano Hydra 11, proračunati parametri unosili u navedeni računalni program i pomoću njega iscrtavali su se uzdužni profili, poprečni presjek rova, montažni plan čvorišta i planovi iskolčenja. Na posljetku rada odabrana je najoptimalnija varijanta i dano zaključno mišljenje.The master thesis presents a conceptual solution of the optimization of a part of the water supply system of the Donja Drenova using pumping stations. In the first part of the paper, the assigned area was analyzed, important features were mentioned, and with the collected information, the relevant quantities for different consumer were defined. After the calculation of the relevant quantities, I moved on to the creation of a hydraulic calculation, where the flows, pressures in the nodes, velocities and losses in the pipes were analyzed, and the most optimal variant was created. Three variants are developed which differ in terms of the disconnection and altitude of the position of the source and pump stations, and in the pressure pipelines and the different periods of water abstraction. The water supply system is performed as a gravitational – thrust (combined) system. The supply to the water chamber of the water tower is carried out by a repressed system, while the distribution of the branch network is gravity. All of the above analyses were made out of the Excel, and then, after converting the CAD elements within the Urbano Hydra 11 computer program and used the longitudinal sections, cross – section of the trench, the assembly plan of the junction and the stake plans were drawn using it. At the end of the work, the most optimal variant was selected and a final opinion was given