Методика оцінювання технічного стану насосних агрегатів за рівнями вібрації та показниками енергоефективності

Abstract

The purpose. To develop a technique of assessment of technical condition of pump units (PU) according to the levels of vibration and indexes of power efficiency which will enable in due time to determine time of holding engineering service and major overhaul of pump-power facilities of pumping stations (PS) of irrigation systems in conditions of their exploitation. To carry out analysis of results of on-site investigations of PS gained at power diagnostic studies and vibration monitoring. To determine correlation between vibration and its influence on use reliability and power efficiency of PU. Methods. Information-analytical — for the analysis and assessment of domestic and foreign proceedings on the yielded theme; experimental — for determination of power characteristics and levels of vibration of PU with application of modern means of measurement technology and vibration monitoring; statistical and system approaches — mfor the analysis and processing experimental data. Results. Data gained at on-site investigations of PS of irrigation systems are analyzed. Scientific-methodological approach is offered to assessment of technical condition of PS according to the levels of vibration and indexes of power efficiency, based on a hypothesis about correlation between indexes of vibration (vibration speed and vibration acceleration) and aberration of coefficient of performance (CP) of PU. Conclusions. Necessity is proved of perfecting technique of holding power diagnostic studies of PU with assessment of technical condition of PS according to the levels of vibration which will enable objectively assess technical condition of pump-power facilities of PS of irrigation systems.