DIAGNOSIS OF POWER OIL IN PUMPING UNITS COOLING SYSTEMS OF POWER PLANT EQUIPMENT

The article presents the results of improving methods for diagnosing energy oil “Tp-30” pumping unit NPP equipment coolant circulation system. When studying physicochemical and thermophysical properties this oil, it was found that: indicators “acid number”, “water content”, “content mechanical impurities”, additive “Ionol”, “flash point”, “kinematic viscosity” correspond to established standards. determining concentration “Ionol” in sample oil: method adding is used; obtained calculation formula, values distribution coefficient system “turbine – liquid extractant” are not used, which simplifies study content turbine oil. water mineral determined by gas chromatography coulometric titration with K. Fischer’s reagent, exceeds thermal extraction. effect extraction temperature on additives (when its a given oil), dependence coefficients Ki t range 15–75 0С can be expressed equation lnKi = А/(t+273) B ; It recommended extract Ionol from at (20 ± 2) °С or (65 10) °С. chemical nature extractant ability ethanol, isopropanol, acetonitrile used as extractants additive, mixture “acetonitrile water” cannot such extractant. improve second circuit pressurized power reactor.