Development methodology for a pulsation damper of gas control valves

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Abstract

The background for the proposed methodology is based on the principle of stage throttling with simultaneous equalizing and stabilizing the outflow, as well as elimination of gas-dynamic self-oscillating modes of the control valve. Having conducted an analysis of suppression and dampening means and according to established patterns of occurrence of self-oscillations we have suggested an integrated pulsations damper performing the following functions: elimination of gas-dynamic self-oscillations, reducing pressure pulsations in the source by reducing pressure drop, stage throttling with a reduced flow rate and outflow stabilization. A distinctive feature of our methodology is combining experimental dependencies with numerical simulation of natural modes and gas-dynamic processes taking place in the control valve and pressure pulsation damper. As initial data for designing the damper we have set its desired efficiency while ensuring specified operating modes of the gas distribution station and specified restrictions on dimensions and hydraulic resistance. The methodology allows for a significant reduction of broadband pressure pulsations and vibration by the damper due to the rational and maximum permissible distribution of pressure differences in the control valve and damper under operating conditions in which the total vibrational power of the control valve and damper is maintained close to the minimum.

About the authors

Alexander Kryuchkov

Samara National Research University

Email: kan@ssau.ru

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

Russian Federation

Maxim Balyaba

Samara National Research University

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

Graduate student, Department of Automatic Systems of Power Plants

Russian Federation

Mikhail Ermilov

Samara National Research University

Email: emasamara@gmail.com

Graduate student, Department of Automatic Systems of Power Plants

Russian Federation

Konstantin Shabanov

Gazprom transgas Samara LLC

Email: K.Shabanov@samaratransgaz.gazprom.ru

Head of the technical department of Gazprom transgas Samara LLC

Russian Federation

References

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Copyright (c) 2018 Александр Николаевич Крючков, Максим Владимирович Баляба, Михаил Анатольевич Ермилов, Константин Юрьевич Шабанов

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Journal of Dynamics and Vibroacoustics

ISSN 2409-4579 (Online)

Publisher and Founder: Samara National Research University, 34, Moskovskoye shosse, Samara, 443086, Russian Federation.

Extract from the register of registered media

Editor-in-chief:  Academician of the RAS
E. V. Shakhmatov 

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Address for correspondence: 34, Moskovskoye shosse, Samara, 443086, Russian Federation, Samara National Research University (room 324, building 14)

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