A Practical Example of Small Pump Stations Energy Efficiency Increasing by Reengineering

Abstract

The suction station "Gnjilan", belonging to the "Water-supply" Pirot municipal enterprise, has been used as an example of small pump stations energy efficiency increasing by replacement of existing old pumps with new ones. It has been shown that it was possible to identify the pipeline characteristic and an optimum system operating point, even in the absence of appropriate flow measuring devices. This has been done using an indirect method of flow estimation by measurement of driving induction motor elecrtical parameters. In accordance with the obtained results, the new pump has been chosen. Huge savings in the electrical energy consumption referred to actual situation will be achieved through the application of the new pump.

Na primeru Crpne stanice "Gnjilan" u okviru JP "Vodovod" Pirot, prikazan je način za povećanje energetske efikasnosti malih pumpnih stanica zamenom postojećih pumpnih agregata novim. Pokazano je da je, čak i u situaciji kada ne postoje odgovarajući uređaji za merenje protoka, moguće identifikovati karakteristiku cevovoda i optimalnu radnu tačku sistema primenom indirektne metode merenja električnih veličina pogonskog motora. U skladu sa identifikovanim parametrima, izvršen je izbor novog pumpnog agregata čijom primenom se mogu ostvariti znatne uštede u odnosu na postojeće stanje sistema.