Design-theoretical and experimental study of cavitation characteristics of the gate shut-off and control devices with multi-stage throttling

Decrease and increase in the working fluid pressure and flow rate in hydraulic systems cause cavitation, vibration, noise and material destruction. The main reason for all the undesirable phenomena arising in operation of the pipeline fittings is the working medium speed in the narrow section between the control elements and their seats. Using the multi-stage throttling makes it possible to reduce this parameter in the valve and behind it and position the place, where cavitation bubbles collapse, in the flow. A structural element is introduced into the pipeline fittings valve. It determines the working medium speed fine regulation and field, where its particles are moving behind the valve at the maximum speed in the flow thickness. These particles speed vector is parallel to the axis of the outlet pipe of the pipeline fittings body. One of the important tasks in designing the control devices is determination of the cavitation characteristics. The paper presents results of design-theoretical and experimental studies to determine hydraulic and cavitation characteristics of the gate shut-off and control device with the multi-stage throttling. Experimental value of the cavitation coefficient for one throttle plate was 0.584, and for three plates – 0.735, while the working medium speed behind the plates decreased by 1.37 times.

References

[1] Morits M. Import-substitution summary: expansion of production possibilities. Vestnik armaturostroitelya, 2022, no. 6, pp. 62–65. (In Russ.).

[2] Druzina I. Expert opinion on the market of pipeline valves. Vestnik armaturostroitelya, 2022, no. 6, pp. 56–57. (In Russ.).

[3] Afanasyeva O.V., Bakulina A.A., Korkunov S.B. Prospects for development of the Russian valve industry in the current economic environment. Gazovaya promyshlennost [Gas Industry], 2020, no. 6, pp. 70–73. (In Russ.).

[4] Chinyaev I.R., Shanaurin A.L., Fominykh A.V. Upravlenie potokami zhidkostey i gazov. Ch. 1. Shibernye zaporno-reguliruyushchie ustroystva [Flow control of liquids and gases. P. 1. Gauge shut-off and control devices]. Kurgan, Izd-vo KGU Publ., 2022. 248 p. (In Russ.).

[5] Baumann H.D. Designs and applications. Future trends in control valves. Armaturostroenie, 2022, no. 3, pp. 34–35. (In Russ.).

[6] Baryshnikov V.V., Terekhov E.A. Cavitation and cavitation wear of control valves. Molodoy uchenyy [Young Scientist], 2023, no. 37, pp. 14–16. (In Russ.).

[7] Zhu M., Zhao S., Li J. et al. Computational fluid dynamics and experimental analysis on flow rate and torques of a servo direct drive rotary control valve. Proc. Inst. Mech. Eng. C. J. Mech. Eng. Sci., 2018, vol. 233, no. 1, pp. 213–226, doi: https://doi.org/10.1177/0954406218756449

[8] Kulagin V.A., Sokolov N.Yu. Cavitation shutoff elements pipeline systems. Vestnik SibFU. Inzheneriya i tekhnologii [Journal of Siberian Federal University. Engineering & Technologies], 2014, no. 7, pp. 872–880. (In Russ.).

[9] Makhov A.A., Muftakhov V.Z., Fominykh A.V. et al. Shibernoe zaporno-reguliruyushchee ustroystvo [Shut-off and regulating device]. Patent RU 217661. Appl. 27.04.2022, publ. 11.04.2023. (In Russ.).

[10] Vorobyeva V.M. Computer simulation of cavitation in a wedge gate valve in the ANSYS FLUENT environment. StudArctic Forum, 2023, vol. 8, no. 2, pp. 36–41. (In Russ.).

[11] Isaenko I.I., Makhnov A.V., Smirnov E.M. et al. Simulation of high-speed cavitating flows in channels. Nauchno-tekhnicheskie vedomosti SPbGPU. Fiziko-matematicheskie nauki [St. Petersburg Polytechnic University Journal - Physics and Mathematics], 2018, vol. 11, no. 1, pp. 55–65, doi: https://doi.org/10.18721/JPM.11106 (in Russ.).

[12] Kapranova A.B., Lebedev A.E., Meltser A.M. et al. On the way to assess critical parameters cavitation in transport regulators in the working environment. Fundamentalnye issledovaniya [Fundamental Research], 2016, no. 3, pp. 488–494. (In Russ.).

[13] Sverchkov A.M., Sumskoy S.I. Recording of the cavitation phenomena when modeling flows in the trunk pipelines. Bezopasnost truda v promyshlennosti [Occupational Safety in Industry], 2020, no. 11, pp. 7–14, doi: https://doi.org/10.24000/0409-2961-2020-11-7-14 (in Russ.).

[14] Vlasyuk P.E., Chernyshev A.V., Chinyaev I.R. et al. Calculation and theoretical study of regimes of the working medium flow in a slide gate valve for technological lines in the oil and gas industry. Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroenie [BMSTU Journal of Mechanical Engineering], 2022, no. 5, pp. 43–51, doi: http://dx.doi.org/10.18698/0536-1044-2022-5-43-51 (in Russ.).

[15] Vlasyuk P.E., Chernyshev A.V., Chinyaev I.R. et al. Calculation of flow capacity of gate valve for technological lines of oil and gas production industry. Truboprovodnaya armatura i oborudovanie, 2022, no. 2, pp. 37–39. (In Russ.).

[16] Malov D.A., Chernyshev A.V. Increase of throughput capacity and regulation range of the passage valve. Truboprovodnaya armatura i oborudovanie, 2023, no. 1, pp. 25–27. (In Russ.).

[17] Malov D.A., Chernyshev A.V., Slobodov E.B. Shut-off valve throughput capacity. Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroenie [BMSTU Journal of Mechanical Engineering], 2022, no. 3, pp. 66–75, doi: http://dx.doi.org/10.18698/0536-1044-2022-3-66-75 (in Russ.).

[18] Ignatyeva T.Yu., Gorobchenko S.L., Kovalev D.A. Behavioural model of the control valve. Truboprovodnaya armatura i oborudovanie, 2023, no. 1, pp. 12–15. (In Russ.).

[19] Wu H., Li J.Y., Gao Z.X. Flow Characteristics and stress analysis of a parallel gate valve. Processes, 2019, vol. 7, no. 11, art. 803, doi: https://doi.org/10.3390/pr7110803

[20] Liu P., Liu Y., Huang Z. et al. Design optimization for subsea gate valve based on combined analyses of fluid characteristics and sensitivity. J. Pet. Sci. Eng., 2019, vol. 182, art. 106277, doi: https://doi.org/10.1016/j.petrol.2019.106277

[21] Fominykh A., Chinyaev I., Telminov A. et al. Development of a method for determining the specific pressures on the sealing fields of slide valves. AIP Conf. Proc., 2022, vol. 2503, no. 1, art. 050062, doi: https://doi.org/10.1063/5.0099962

[22] Chinyaev I.R., Fominykh A.V., Poshivalov E.A. et al. The throughput ability of shutoff and control valves. Ekspozitsiya Neft Gaz [Exposition Oil Gas], 2015, no. 2, pp. 38–40. (In Russ.).