This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Aiming at solving the problem of low unloading sensitivity, bad dynamic performance and poor stability of high-pressure and large-flow relief valve in hydraulic support system, a new differential type of high-pressure and large-flow relief valve, functioned by high water-based hydraulic medium, is designed. Through analysing the influence of spool form, elastic element, and working principle on valve performance, a structural scheme of large-flow and high-pressure safety valve is put forward. The three-dimensional fluid–solid coupling model of differential safety valve is established; through ADINA software, three-dimensional fluid–solid coupling simulation of relief valve's orifice from shutdown to full opening is carried out to analyse the distribution of internal pressure in the flow field of the safety valve and the pressure change of the structure field. The physical simulation model of safety valve is established by using AMESim software, and the dynamic performance of safety valve is simulated under the given signal of nominal flow and small flow. According to the design structure, the safety valve with the rated flow of 3000 L/min is manufactured and tested. The simulation and experimental results show that the safety valve has good dynamic performance and high sensitivity..
References
-
-
1)
-
4. Junliang,, C.: ‘Research on the high pressure and large flow relief valve design and experimental system’. , China University of Mining & Technology, 2015.
-
2)
-
5. Chang,, J., Liu,, L., Zhao,, J., et al: ‘The design of impact test-bed for high-flow water medium relief valve’, Adv. Mech. Eng., 2014, 2014, pp. 1–9.
-
3)
-
12. Qiuju,, Z.: ‘CFD simulation of the flow field in safety valve with high water’. , Taiyuan University of Technology, 2008.
-
4)
-
8. Dragne,, F.D., Alirand,, M., Oprean,, I.M., et al: ‘ABS valve model reduction by AMESim’, Proc. Rom. Acad. A: Math. Phys. Tech. Sci. Inf. Sci., 2009, 10, (2), pp. 189–196.
-
5)
-
7. Marquis-Favre,, W., Bideaux,, E., Scavarda,, S.: ‘A planar mechanical library in the AMESim simulation software. Part II: library composition and illustrative example’, Simul. Modelling Pract. Theory, 2006, 14, (2), pp. 95–111.
-
6)
-
10. Barman,, P.: ‘Computational fluid dynamics (CFD) analysis to predict and control the cavitation erosion in a hydraulic control valve’. . Detroit, USA, 2002, pp. 1–5.
-
7)
-
3. Changxi,, L., Changlong,, D., Bingyue,, L.: ‘Design and research of large-flow relief valve used in hydraulic support’. , China University of Mining and Technology, 2015.
-
8)
-
11. Tian,, T., Nakano,, M., Li,, W.: ‘Applications of shear thickening fluids: a review’, Int. J. Hydromechatronics, 2018, 1, (2), pp. 238–257.
-
9)
-
6. Baoming,, W.: ‘Research on internal flow of key components of hydraulic support and operating characteristics of its hydraulic system’. , China University of Mining & Technology, 2011.
-
10)
-
2. Gong,, Y., Yang, H., Wang, Z., : ‘Water hydraulic 2/2 directional valve with plane piston structure’, Chin. J. Mech. Eng., 2009, 22, (1), pp. 109–115.
-
11)
-
1. Park,, S.H.: ‘Development of a proportional poppet-type water hydraulic valve’, J. Mech. Sci. Technol., 2009, 223, (9), pp. 2099–2107.
-
12)
-
9. Yang, R.: ‘CFD simulation of Oil flow and flow induced forces inside hydraulic valves’. National Fluid Power Association and Society of Automotive Engineers, 2002, pp. 201–207.
http://iet.metastore.ingenta.com/content/journals/10.1049/joe.2018.8972
Related content
content/journals/10.1049/joe.2018.8972
pub_keyword,iet_inspecKeyword,pub_concept
6
6