Browsing by Subject "pumping units"

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Access status: Open Access ,
Diagnostics and life prediction of pumping unit reducers by vibration analysis
(2008) Kopej, Bogdan Volodimirovič; Bednarz, Stanisław; Stefanišin, Oksana
The problem of determination of the technical state of pumping units reducing gears sharply is based on the estimation of their resource in the process of exploitation and after the repair in the conditions of repair base. It is especially needed to know descriptions of vibrations of reducing gears of pumping units by which it is possible to judge about the presence of defects, wear, damages or deformations of basic assemblies of reducing gears of different type. On the basis of classification of defects and connection them with vibroacoustic descriptions of reducing gears of pumping units the method of estimation of their technical state is developed and a remaining resource is forecast. During the long term work of machine the change of its state is fixed on the basis of collection and treatment of statistical information about the parameters of vibration. As a diagnostic parameter the dispersion of level of vibration is often used in practice. Acceptable the procedure of comparison of spectrum of vibrosignal, measured on the diagnosed equipment, with the spectrum of vibrosignal, measured before on equipment, or on equipment in good condition. On the basis of the vibroacoustic signal processing it is possible to define quality of repair. The use of functional-cost analysis of reducing gears of pumping units is conducted for cutting of costs on their repair.
Access status: Open Access ,
Primenenie diskretnyh datčikov v mobil'nyh informacionno-izmeritel'nyh sistemah štangovyh skvažinnyh nasosnyh ustanovok
(2008) Lopatin, Valerij V; Bednarz, Stanisław; Kopej, I B; Kopej, Bogdan Volodimirovič
Basics of parameters, structure and application range determination of mobile control-measurement systems have been developed in cooperation of Ivano-Frankivsk National Technical University of Oil and Gas, Institute of Geotechnical Mechanics NAS and AGH University of Science and Technology for technical status evaluation of rod pump units. Discrete signal needs of different structural and functional system conceptions than analog signal. Justified and rational selection of discrete interface is possible on the basis of complex problems researches relative to control-measurement systems implementation in industrial conditions. Output signal is two variable functions of object location and supply current intensity for sensor. Sensor provides only logic transformation, therefore is completed with discrete interface of control-measurement systems fulfill memory function.