Experimental study of the transition of two types of wedge gate valves

Authors

DOI:

https://doi.org/10.15587/2312-8372.2020.198722

Keywords:

wedge valve, torque, relative air admission, valve tightness, cast-iron gate valve, brass gate valve

Abstract

The object of research is the type of power valves – gate valve or wedge valve. Gate valves or wedge valves take a leading place among power valve. It has minimal hydraulic resistance, an almost linear dependence of the flow rate on the degree of opening, and is widely used on general-purpose pipeline systems. One of the problem areas of such valves is the loss of tightness or the transition of wedge gate valves. In addition, a more complex design increases the likelihood of failure of such valves. To solve this problem, it is proposed to carry out an experimental study of the gate transition depending on the effort of their closure, as well as research the trend of this dependence.

The studies are carried out on a bench that provides air pressure up to 3.0–3.5 MPa and is equipped with cast-iron and brass valves. Air transition is measured in a volumetric manner, displacing water from the measuring cell. To create a force on the rod that closes the valve, we used a KD-230 torque wrench (Russia) are used, which allows to measure torque up to 230 N⋅m. The experimental technique is as follows. The valve is closed with the necessary force wrench, then the compressor was turned on and the required pressure is reached. Air transition is measured by filling the measuring cell over time, fixed by a stopwatch.

Processing of the obtained experimental data allows to obtain the following dependences of the relative gap of the valve on the magnitude of the torque for the cast-iron gate valve: Q/√ΔP)=3458∙M(–1,069and for the brass valve: (Q/√ΔP)=6893∙M(–2,435). It is shown that gate valves as well as previously studied valves have one trend: (Q/√Δ)P=С∙M(–g). The degree of torque shows that the larger it is in absolute value, the better the locking characteristics of the valve. So, to ensure the same air transition, the torque on the cast iron valves should have greater values than for the studied brass gate valve.

Author Biographies

Оleksandr Korolоv, Odessa National Polytechnic University, 1, Shevchenko ave., Odessa, Ukraine, 65044

Doctor of Technical Sciences, Professor

Department of Nuclear Power Plants

Pavel Pavlishin, National Nuclear Energy Generating Company «Energoatom», 3, Nazarivska str., Kyiv, Ukraine, 01032

Acting President

Olexandr Titlov, Odessa National Academy of Food Technologies, 112, Kanatna str., Odessa, Ukraine, 65039

Doctor of Technical Sciences, Professor, Head of Department

Department of Heat-and-Power Engineering and Oil-and-Gas Transportation and Storing

Valentin Mironchuk, Odessa National Polytechnic University, 1, Shevchenko ave., Odessa, Ukraine, 65044

Department of Nuclear Power Plants

References

  1. Gurevich, D. F., Shiriaev, V. V., Paikin, I. Kh. (1982). Armatura atomnykh elektrostancii. Moscow: Energoizdat, 312.
  2. Imbrickii, M. I. (1981). Spravochnik po armature teplovykh elektrostancii. Moscow: Energoizdat, 304.
  3. Gurevich, D. F. (2008). Raschet i konstruirovanie truboprovodnoi armatury: Raschet truboprovodnoi armatury. Moscow: LKI, 480.
  4. Hewitt, G. F., Collier, J. G. (2000). Introduction to Nuclear Power. CRC Press, 320. doi: http://doi.org/10.1201/b15077
  5. Korolev, A. V., Chervonenko, P. P. (2011). Neustoichivost raboty skhem podderzhaniia urovnia v sistemakh szhizhennogo gaza. Kholodilna tekhnika і tekhnologіia, 11, 25–29.
  6. Gurevich, D. F., Zarinskii, O. N., Kosykh, S. I.; Kosykh, S. I. (Ed.) (1982). Truboprovodnaia armatura s avtomaticheskim upravleniem. Leningrad: Mashinostroenie, 320.
  7. Makarov, A. N., Sherman, M. Ia. (1998). Raschet drosselnykh ustroistv. Moscow: Atomizdat, 283.
  8. Koroliov, A. V., Pavlyshyn, P. Y., Bandurko, I. V. (2018). Experimental Research of Valve Tightness at Different Closure Forces. Nuclear and Radiation Safety, 4 (80), 14–17. doi: http://doi.org/10.32918/nrs.2018.4(80).03
  9. Chernoshtan, V. I., Kuznecov, V. A. (2001). Truboprovodnaia armatura TES. Moscow: Izdatelstvo MEI, 368.
  10. Goshko, A. I. (2003). Armatura truboprovodnaia celevogo naznacheniia. Kn.1: Vybor. Ekspluataciia. Remont. Moscow: Mashinostroenie, 432.

Downloads

Published

2019-12-24

How to Cite

Korolоv О., Pavlishin, P., Titlov, O., & Mironchuk, V. (2019). Experimental study of the transition of two types of wedge gate valves. Technology Audit and Production Reserves, 1(1(51), 37–40. https://doi.org/10.15587/2312-8372.2020.198722

Issue

Vol. 1 No. 1(51) (2020): Industrial and technology systems

Section

Reports on research projects

License

Copyright (c) 2020 Оleksander Korolоv, Pavel Pavlyshin, Alexander Titlov, Valentin Mironchuk

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.