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Authors
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2019/3
Study of deposition of droplets of liquid injected into pipeline by gas-liquid nozzles
Geosciences

Authors: Sergei A. KULIKOV graduated from Gubkin Russian State University of Oil and Gas in 2007. He is specialist in the field of gas control technology in the company “RMG RUS”. Research interests: liquid spraying by centrifugal and gas-liquid nozzles. He is author of 3 scientific publications. E-mail: kulikov.sergey.a@gmail.com
Irina S. KULIKOVA graduated from Gubkin Russian State University of Oil and Gas in 2009. She is Candidate of Technical Sciences. She is Assistant of the Department of Machines and Equipment for Oil and Gas Industry at Gubkin Russian State University (National Research University) of Oil and Gas. Her scientific interests are liquid and gas spraying, technology and equipment for localization and response of oil spills. She is author of 20 scientific publications. E-mail: IrinaSKulikova@gmail.com
Alexander I. KHODYREV graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1980. He is Doctor of Technical Sciences, Professor of the Department of Machines and Equipment for Oil and Gas Industry at Gubkin Russian State University (National Research University) of Oil and Gas. He is specialist in the field of equipment for liquid injection in the implementation of various technologies. He is author of 100 scientific publications. E-mail: aihod@mail.ru

Abstract: The article deals with the problem of spraying liquid inside a pipeline using gas-liquid nozzles. When operating a gas-liquid nozzle installed in the pipeline, the formed droplets may deposit on the pipe wall at a distance of several meters from the nozzle, this can make the spraying process ineffective. The article presents the results of experimental studies performed on the stand, which allows evaluating the deposition rate of sprayed liquid on the walls of the pipelines with a diameter of 150, 300 and 500 mm and up to 10 meters long with one or two gas-liquid nozzles. It is shown that the deposition of the sprayed liquid occurs very intensively within the first ten meters from the point of installation of the nozzle: in most cases, more than half of the sprayed liquid is deposited. Tests have shown that the intensity of droplet deposition decreases with increasing pipe diameter and with increasing atomization fineness achieved by increasing the pressure drop of the sprayed gas and increasing the ratio of mass flow rates of gas and liquid. The use of a circuit with two identical nozzles, directed perpendicularly to the flow and towards each other, allows reducing the deposition rate of the sprayed liquid compared to one nozzle placed on the axis of the pipeline, with a pipe diameter of 300 and 500 mm

Index UDK: 66.069.83

Keywords: gas pipeline, fluid atomization, gas-liquid nozzle, droplets, deposition

Bibliography:
1. Kulagin L.V., Okhotnikov S.S. Szhiganiye tyazhelykh zhidkikh topliv [The combustion of heavy liquid fuels]. Moscow, Nedra, 1967, 280 p. (in Russian).
2. Khodyrev A.I., Kulikov S.A. The atomization process and equipment for its implementation in oil and gas production. Territorija NEFTEGAZ, 2011, no. 3, p. 42-45 (in Russian).
3. Pazhi D.G., Galustov B.C. Atomization equipment bases. Moscow, Himija, 1979, 216 p. (in Russian).
4. Khodyrev A.I. Oborudovanie dlya ingibitornoi zashyty ot korrozii gazoprovodov i apparatov neftegazokondensatnyh mestorozhdeniy. Doct. Diss. [Equipment for inhibitor corrosion protection of gas pipelines and apparats of oil and gas field. Doct. Diss.], Moscow, 2006, 385 p. (in Russian).
5. Khodyrev A.I., Zaytsev Yu.V., Mulenko V.V. Ustroystvo dlya vvoda dispergirovannogo ingibitora korrozii v gazoprovod [Device for spraying of corrosion inhibitor into gas pipeline]. Patent USSR, no. 1683819, opubl. 15.10.89, bul. no. 38 (in Russian).
6. Khodyrev A.I., Mulenko V.V. The inertial deposition of liquid droplets injected by swirl injector into pipeline. Territorija NEFTEGAZ, 2018, no. 3, p. 72-78 (in Russian).
7. Efimov Y.N. The results of the implementation of the process of two-stage gas drying. Khimicheskoye i neftegazovoye mashinostroyeniye [Chemical and petroleum engineering], 2000, no. 11, p. 23-26 (in Russian).

2017/4
Distribution of Droplets by Size in Spectrum in Atomized Liquids
Technical sciences

Authors: Alexander I. KHODYREV graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1980. He is Doctor of Technical Sciences, Professor of the Department of Machines and Equipment for Oil and Gas industry at Gubkin Russian State University of Oil and Gas (National Research University). He is specialist in equipment for liquid injection in various implementations. He is author of 95 scientific publications. E-mail: aihod@mail.ru
Dmitry A. KHODYREV graduated from Master Program of Gubkin Russian State University of Oil and Gas in 2013. He is engineer of 1 category of the Department of Metallurgy and Nonmetallic Materials at Gubkin Russian State University of Oil and Gas (National Research University). He is specialist in equipment for atomization of liquids. He has published one scientific paper.
E-mail: greendocent@rambler.ru
Maria G. BLOKHINA graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1976. She is senior lecturer of the Department of Machines and Equipment for Oil and Gas Industry at Gubkin Russian State University of Oil and Gas (National Research University). She is specialist in the field mathematical modeling and computer aided design. She is author of 8 scientific publications. E-mail: mblohina@gubkin.ru

Abstract: The paper discusses the parameters that characterize the fineness of liquid atomization with centrifugal atomizers. It is shown that the parameter „average diameter” and „average zauther diameter” used by the manufacturer without specifying the adopted distribution function of droplets by diameters makes it difficult for consumers to choose nozzles available on the market. The distribu-tion functions of Rosin-Rammler and Tresh-Golovkov for centrifugal atomizers are compared, and the ratios between the characteristic diameters of the droplets spectrum for these distributions are presented. The results of the study can guide the consumers in the characteristics of the fineness of atomization claimed by the manufacturers of the injectors and cited by authors in scientific and technical literature

Index UDK: 66.069.83

Keywords: centrifugal atomizer, fineness of liquid atomization, diameter of drops, distribution function, range.

Bibliography:
1. Khodyrev A.I., Mulenko V.V. Aerosol application of the inhibitor film in the gas pipelines of small diameter. Gas Industry, 1995, no. 11, p. 18-19 (in Russian).
2. Khodyrev A.I. The development and effective use of the equipment for inhibitor protection of gas pipelines from hydrogen sulfide corrosion. Territorija neftegaz, 2010, no. 3, p. 40-52 (in Russian).
3. Khmelev V.N., Shalunov A.V., Shalunova A.V., Golyh R.N., Genne D.V. Measurement of the size of liquid droplets obtained in different modes of operation of ultrasonic atomizers. Polzunovskij vestnik, 2012, no. 3/2, p. 179-184 (in Russian).
4. Pazhi D.G., Galustov B.C. Atomizers for a fluid. M.: Himija, 1979, p. 216 (in Russian).
5. Paloposki T. Drop size distributions in sprays. Acta politecnica scandinavia, mechanical engineering series, 1994, no. 114, p.1-209.
6. Raushenbah B.V., Belyj S.A., Bespalov I.V. et al. The physical basis of the working process in combustion chambers of jet engines. L.: Mashinostroenie, 1964, p. 526 (in Russian).
7. Prudnikov A.G., Volynskij M.S. Sagalovich V.N. The processes of mixture formation and combustion in air-breathing engines. M.: Mashinostroenie, 1971, p. 355 (in Russian).
8. Borodin V.A., Ditjakin Ju.F., Kljachko L.A., Jagodkin V.I. Atomization of liquids. M.: Mashinostroenie, 1967, p. 263 (in Russian).
9. Volkov E.B., Golovkov L.G., Syricyn T.A. Liquid rocket engines. Moscow, Voenizdat, 1970, p. 592 (in Russian).
10. Korolev D.V., Naumov V.N., Suvorov K.A. Determination of particle size distribution of powder by microscopic method. Methodical instructions for laboratory work. St. Petersburg, GOU VPO SPbGTI (TU), 2005, p. 41 (in Russian).
11. Lyshevskij A.S. Regularities of fragmentation of liquid mechanical injector pressure. Novocherkassk: Novocherkassk Polytechnic Institute, 1961, p. 180 (in Russian).
12. Golovkov L.G. The distribution of drops in size at atomization of liquids centrifugal injectors. IFZh, 1964, no. 11, p. 55-61 (in Russian).
13. Trjosh G. Atomization of liquid. Voprosy raketnoj tehniki, 1955, no. 4, p. 107-127 (in Russian).
14. Trjosh G., Grossman N. To distribution law of droplets in the atomization. Voprosy raketnoj tehniki, 1955, no. 4, p. 22-25 (in Russian).
15. Khodyrev A.I. The calculation method of parameters of centrifugal injectors at oil and gas production facilities. Neft’, gaz i biznes, 2005, no. 6, p. 57-60 (in Russian).