CONTENTS of journal "THNP" 2·2014 (Russia)
MODELING OFTHE STRESS STATE OFUNDERGROUND PIPELINE WITH UNDERGROUND CHANGES
Chuchkalov M.V., Candidate of Tech. Sci., Gazprom transgas Ufa, (59, Zorghe st., Ufa, 450054, Russian Federation),
Gumerov K.M., Doctor of Tech Sci.,Prof., Institute of Energy Resources Transportation (144/3, prospekt Oktyabrya, Ufa,450055, Russian Federation)
In this article, the methods of iterations and successive approximations possibility evaluation of stressed-strained state of the pipeline is in operation under different ground changes, in which the actors are unknown in advance. Is the algorithm calculation program that takes account of the different forms of interaction of pipe with ground.
KEYWORDS: modeling, stress-strain state, pipeline, ground changes.
USE OFGEOTHERMAL HEATSOURCES FOR EARTH HEATRESISTANCE OFLOCAL GAS PIPELINES INWINTER
Maximov E.A., Associate Professor, Candidate of Tech. Sci.
Vasiliev V.I., Associate Professor, Candidate of Tech. Sci.
South Ural State University(76, prosp. Lenina, Chelyabinsk, 454080, Russian Federation)
Analyzed by different methods (insulation materials, electric heating, microwave heating) of local resistance heating (wellheads, expansion joints, bends the road, shut-off valves, expansion section of the pipe, etc.) when transporting them highly viscous oil. Their advantages and disadvantages.
As an alternative heat source proposed an innovative method of local resistance heating pipelines using geothermal implemented using a heat pump. Different variants of pipelines with heat pumps. A new variant of the thermal insulation of pipelines.
KEYWORDS: local resistance heating, the main pipeline, geothermal heat, heat pump, heat insulation.
TECHNIQUE OFDETERMINATIONRESIDUAL LIFE OFVERTICAL STEEL TANKS WITH CRACK-LIKE DEFECTS INFIRSTBELTBASED ONFRACTURE MECHANICS
Gerasimenko A.A., Post Graduate Student, Department of Oil and Gas transportation and storage
National mineral Resources University(2, 21st line, Vasilevsky Ostrov, Saint-Petersburg, 199106, Russian Federation)
Presents a methodology for predicting the residual resource tanks crack-like defect in the first zone. A distinctive feature of the technique is that it takes into account the complex stress state of the walls of the tank, uses the cyclic crack defined under biaxial loading, K-calibration function for a particular size of the tank and crack.
KEYWORDS: steel vertical tank, crack-like defects, residual life prediction.
MODELLING OF OPERATING MODES AND CHARACTERISTIC MALFUNCTIONS OF DRY POWER TRANSFORMERS FOR RESEARCH OF INTERRELATION OF THEIR TECHNICAL CONDITION WITH PARAMETERS OFGENERATED HIGHER HARMONIOUS MAKING CURRENTS AND VOLTAGES
Bashirov M.G., Doctor of Tech. Sci., Prof., Branch Ufa State Petroleum Technical University in Salavat(22A/67, ul. Gubkina, Salavat, 453250, Russian Federation)
Prakhov I.V., Candidate of Tech. Sci., Senior Researcher, Institute of Applied Research Academy of Sciences of the Republic of Bashkortostan (68, ul. Odesskaya, 453103, Sterlitamak, Russian Federation)
In given article process of modelling of operating modes and characteristic malfunctions of dry power transformers is described. By results of modelling laws of interrelation of parameters of harmonious making currents and pressure with a technical condition and transformer operating modes are received.
KEYWORDS: operating mode, power transformer, higher harmonics, malfunction, modelling, current, voltage, damage.
CAUSE VIBRATIONS IN THE GAS COMPRESSOR UNITS
The paper analyzes the factors affecting the vibrational state of electrically driven gas compressor units, methods of identifying and reducing the influence of these factors on the basis of practical experience. Stated the author's position on the selection of the operating mode of electrically GPA.
KEYWORDS: electric motor units, vibrational state, unbalance correction, thermal deformation, gear sleeves, couplings minimize beats, forward centering, axial displacement of the rotor support structure.
SUBSTANTION PHYSICAL AND CHEMICAL PROPERTIES OF OIL PRODUCTS AND THEIR REGULATION AT CONSECUTIVE SWAPPING
Nurullaev V.X., Candidate of Tehn. Sci., Engineer
Recently the steady tendency to magnification of bulks of haul, oil and oil products was outlined. Thus, for problem solution on magnification of bulk of oil pumping and oil products, developments new or optimization of applied technologies of haul of oil and oil products taking into account their rheological behavior and operating characteristics of pipe lines are indispensable.
Investigated the main parameters of various oil products are: boiling temperature, flash temperature, density, kinematic viscosity. It is shown, that at the additive in jet fuel ТС-1 of gasoline А-76 in quantities to 5% does not worsen quality of jet fuel, and in quantity to 3% - it is not reflected at all in its quality.
KEYWORDS: pipeline transportation, jet fuel, gasoline, buffer tube, distillation fractions, physical and chemical properties, kinematic viscosity.
BUTANEDIOL-1,3 DERIVATIVES AS ADDITIVES TO LUBRICATING OILS AND CUTTING FLUIDS
Babayev N.R., Institute of Petrochemical Processes named after Yu.G.Mamedaliyev (AZ1025, 30, Khojali pr., Baku, Azerbaijan Republic)
Alimardanov H.M., Institute of Petrochemical Processes named after Yu.G.Mamedaliyev (AZ1025, 30, Khojali pr., Baku, Azerbaijan Republic)
Guliyeva D.M., Institute of Petrochemical Processes named after Yu.G.Mamedaliyev (AZ1025, 30, Khojali pr., Baku, Azerbaijan Republic)
Aminova B.M., Academician A.M. Guliyev Institute of Chemistry of Additives (Boyukshor shosse, kv. 2062, Baku - AZ1029, Azerbaijan Republic)
Abdullayev B.I. , Academician A.M. Guliyev Institute of Chemistry of Additives (Boyukshor shosse, kv. 2062, Baku - AZ1029, Azerbaijan Republic)
A series of amino-methylated derivatives of allyl and butyl esters of butanediol-1, 3 has been synthesized. Composition and structure of the synthesized compounds have been confirmed by use of IR and NMR-spectroscopy methods. There has been shown effectiveness of some synthesized compounds as anti-wear and anticorrosive additives to lubricating oil M-10 and cutting fluid.
KEYWORDS: ether amines, amino alcohols, lubricants, coolants, additives, corrosion, anti-wear additives.
IMPROVING METHOD OF TREATING WASTEWATER WITH CHEMICAL POLLUTION OF THE TERRITORY
Fattakhova A.M., Lecturer
Balandin A.G., Graduate Student
Hangildin R.I., Candidate of Tech. Sci., Associate Professor
Martyasheva V.A., Candidate of Tech. Sci., Associate Professor, Ufa State Petroleum Technological University (1, Kosmonavtov str., Ufa, 450062, Russian Federation)
The authors give a short review on the existing of ways of treatment difficult oxidized waste water with chemically contaminated areas. The results of the study authors in the field of process intensification oxidation in membrane reactor in the presence of homogeneous and heterogeneous catalysts.
KEYWORDS: chemically contaminated areas, difficult oxidized waste water, oxidation, ozone, homogeneous catalysts, heterogeneous catalysts, membrane reactor.
METHOD OF SELECTION OF GOOD WAY FOR THE CARRIAGE LIQUID FUEL
Lyashenko A.N., Railway Research Institute (10, 3rd Mytischinskaya ul., Moscow, 107996,Russian Federation)
Each customer on the carriage of goods, particularly fuel oil, is interested in minimizing the cost of this operation. In simple cases, transport, such as one mode of transport when there are no alternative proposals, this minimization is done by a possible reduction in the cost of transportation and direct operation «loading-unloading». Quite a different problem arises when transportation can be made by various schemes combined modes of transport. Here it is necessary to determine not only the cost of delivery of liquid fuel on possible routes, but the timing and reliability of delivery.
The article reveals the essence of the method based on the cost of delivery to destination, time-consuming, cargo in combined transport schemes and determined the best solution possible. The proposed method is illustrated by a practical example that facilitates the understanding of the material of the article.
KEYWORDS: cargo transportation, minimize costs, combined transport schemes, rational way, evaluation of the route.