Suppression of gas-dynamic self-oscillations in the outflow line of a gas control valve

Abstract

This article is devoted to the investigation of the causes and peculiarities of high-frequency gas-dynamic self-oscillations arising in the outflow line of gas control valves. We have demonstrated that these self-oscillations result in a substantial increase in the level of dynamic loading of the control valve elements due to the occurrence of intense tonal components in the pressure fluctuation spectra in the pipeline, the vibrations of the output flange of the control valve, as well as the external noise of the whole assembly. We have provided the results of investigating the conditions for high-frequency gas-dynamic self-oscillations arising from the gas flow interaction with the control valve elements, as well as with supporting pylons of the central fairing. It is shown that an increase in the flow above a certain value of output speed (40 m/s) results in tonal components of the spectrum of pressure pulsations. We have described the measures to suppress gas-dynamic self-oscillations by means of a perforated sleeve installed in the outflow line of the control valve. Three modifications of the sleeve design have been modeled, numerical simulation of gas-dynamic processes in the control valve exhaust duct with a perforated sleeve installed has been carried out. It is shown that complete elimination of gas-dynamic self-oscillations can be made possible by installing the sleeve in the control valve exhast duct.

About the authors

M. V. Balyaba

Samara National Research University

Author for correspondence.
Email: bmw-surgut@yandex.ru

postgraduate student

Russian Federation

M. A. Ermilov

Samara National Research University

Email: emasamara@gmail.com

postgraduate student

Russian Federation

A. N. Kryuchkov

Samara National Research University

Email: kan@ssau.ru

Doctor of Science (Engineering), Professor
Department of Automatic Systems of Power Plants

Russian Federation

K. U. Shabanov

Gazprom transgaz Samara LLC

Email: K.Shabanov@samaratransgaz.gazprom.ru

Head of the Technical Department

Russian Federation

References

  1. Shabanov K.Y., Kryuchkov A.N., Ermilov M.A., Balyaba M.V. Elimination of gas dynamic resonance modes of vibration loads of gas distribution station pipeline fitting. Vestnik of the Samara State Aerospace University. 2014. No. 4(46). P. 107-118. (In Russ.)
  2. Vedeneev V.V., Guvernyuk S.V., Zubkov A.F., Kolotnikov M.E. Experimental investigation of single-mode panel flutter in supersonic gas flow. Fluid Dinamics. 2013. V. 45, Iss. 2. P. 312-324. doi: 10.1134/S001546281002016X
  3. Zhamov E.A., Korolev S.F. Osnovnye istochniki shumoobrazovaniya v truboprovodnoy armature. Sbornik nauch. trudov TsKBA. 1977. P. 37-44. (In Russ.)
  4. Ligterink N.E., De Groot R., Gharaibah E., Slot H.J. Flow induced vibration of subsea gas production systems caused by choke valves. SPE Annual Technical Conference and Exhibition. 2012. V. 6. P. 4662-4672.
  5. Ginevsky A.S., Vlasov E.V., Karavosov R.K. Akusticheskoe upravlenie turbulentnymi struyami [Acoustic control of turbulent flows]. Moscow: FIZMATLIT Publ., 2001. 240 p.
  6. Zalmanzon L.A. Teoriya elementov pnevmoniki [Theory of pneumonics components]. Moscow: Nauka Publ., 1969. 508 p.
  7. Arzumanov E.S., Skripchenko V.G. Raschet urovnya snizheniya shumov v drossel'nykh ustroystvakh gidravlicheskikh system. Tezisy dokladov Vsesoyuznogo nauchno-tekhnicheskogo soveshchaniya po primeneniyu gidravlicheskoy avtomatiki v promyshlennostiy. Moscow: Nauka Publ., 1977. P. 181-185. (In Russ.)
  8. MacKinnon J.G. Recent advances in standardizing valve noise prediction. Society of instrument and control engineers. Tokyo, 1984.

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