Abstract
Cavitation occurring in a sleeve regulating valve not only increases the energy waste of the whole piping system but also causes severe and costly damage to the valve body and the piping system. In this paper, in order to reduce the cavitation inside the sleeve regulating valve, the effects of different valve core shapes, including flat bottom, ellipsoid, circular truncated cone, and cylinder, on cavitation are investigated by using a cavitation model. The pressure, velocity, and vapor volume fraction distribution in the regulating valve are obtained and compared for different valve core shapes and valve core displacements. The total vapor volumes are also predicted and compared. The results show that vapor primarily appears in the gap between the sleeve and the valve core surface. The cavitation intensities for the ellipsoid and cylinder valve cores are greater than those for the other two valve cores. With the increase of the valve core displacement, the total vapor volumes for all four valve core shapes first increase and then decrease. This work is of significance for the optimization and design of sleeve regulating valves.
概要
目 的
套筒式调节阀内空化的发生不仅会增加整个管路系统的能量损耗, 而且会造成阀体及管路的失效破坏. 本文旨在探讨四种不同形状的阀芯对套筒式调节阀内不同阀芯位移工况下的空化流动及空化强度的影响, 为套筒式调节阀的优化设计及空化控制提出建议.
创新点
-
1.
根据四种不同形状的阀芯, 研究套筒式调节阀内阀芯形状对流动及空化特性的影响;
-
2.
建立数值模型, 对套筒式调节阀在不同阀芯形状和不同阀芯位移条件下进行流动及空化分析.
方 法
-
1.
建立带有不同形状阀芯的套筒式调节阀数值计算模型, 并比较分析阀芯形状对阀内速度、 压力及空化情况的影响(图 4, 8 和 11);
-
2.
建立不同阀芯位移条件下的阀门数值模型, 比较分析阀芯位移对阀内速度、 压力及空化情况的影响(图 6 和 10);
-
3.
建立不同形状阀芯及不同阀芯位移下的阀门模型, 分析阀芯形状和位移对阀内流动及空化特性的综合影响(图 7 和 13).
结 论
-
1.
在四种不同形状阀芯的条件下, 高速流动区域和空化发生区主要位于套筒与阀芯之间的间隙;
-
2.
在直筒形和椭球形阀芯条件下的阀内空化强度明显强于平底形和圆台形阀芯条件下的空化强度, 因此平底形和圆台形阀芯在空化控制方面具有更好的效果;
-
3.
在四种不同形状阀芯的条件下, 随着阀芯位移的增加, 阀内由空化产生的蒸汽总体积先增加后减少.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Baran G, Catana I, Magheti I, et al., 2010. Controlling the cavitation phenomenon of evolution on a butterfly valve. IOP Conference Series: Earth and Environmental Science, 12(1):012100. https://doi.org/10.1088/1755-1315/12/1/012100
Chern MJ, Hsu PH, Cheng YJ, et al., 2013. Numerical study on cavitation occurrence in globe valve. Journal of Energy Engineering, 139(1):25–34. https://doi.org/10.1061/(ASCE)EY.1943-7897.0000084
Corbera S, Olazagoitia JL, Lozano JA, 2016. Multi-objective global optimization of a butterfly valve using genetic algorithms. ISA Transactions, 63:401–412. https://doi.org/10.1016/j.isatra.2016.03.008
Deng J, Pan DY, Xie FF, et al., 2015. Numerical investigation of cavitation flow inside spool valve with large pressure drop. Journal of Physics: Conference Series, 656(1): 012067. https://doi.org/10.1088/1742-6596/656/1/012067
Edvardsen S, Dorao CA, Nydal OJ, 2015. Experimental and numerical study of single-phase pressure drop in down-hole shut-in valve. Journal of Natural Gas Science and Engineering, 22:214–226. https://doi.org/10.1016/j.jngse.2014.11.034
Fu YK, Liu QY, Wang GR, et al., 2013. Mathematical modeling and validation on a new valve core of the throttle valve in MPD. Advances in Mechanical Engineering, 2013:125936. https://doi.org/10.1155/2013/125936
Gao H, Lin W, Tsukiji T, 2006. Investigation of cavitation near the orifice of hydraulic valves. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 220(4):253–265. https://doi.org/10.1243/09544100JAERO26
Hassis H, 1999. Noise caused by cavitating butterfly and monovar valves. Journal of Sound and Vibration, 225(3):515–526. https://doi.org/10.1006/jsvi.1999.2254
Herbertson LH, Reddy V, Manning KB, et al., 2006. Wavelet transforms in the analysis of mechanical heart valve cavitation. Journal of Biomechanical Engineering, 128(2):217–222. https://doi.org/10.1115/1.2165694
Hou CW, Qian JY, Chen FQ, et al., 2018. Parametric analysis on throttling components of multi-stage high pressure reducing valve. Applied Thermal Engineering, 128:1238–1248. https://doi.org/10.1016/j.applthermaleng.2017.09.081
Huovinen M, Kolehmainen J, Koponen P, et al., 2015. Experimental and numerical study of a choke valve in a turbulent flow. Flow Measurement and Instrumentation, 45:151–161. https://doi.org/10.1016/j.flowmeasinst.2015.06.005
Jia WH, Yin CB, 2010. Numerical analysis and experiment research of cylinder valve port cavitating flow. Proceedings of SPIE 7522, Fourth International Conference on Experimental Mechanics, Article 75225X. https://doi.org/10.1117/12.849216
Jin ZJ, Gao ZX, Qian JY, et al., 2018. A parametric study of hydrodynamic cavitation inside globe valve. Journal of Fluids Engineering, 140(3):031208. https://doi.org/10.1115/1.4038090
Kudźma Z, Stosiak M, 2015. Studies of flow and cavitation in hydraulic lift valve. Archives of Civil and Mechanical Engineering, 15(4):951–961. https://doi.org/10.1016/j.acme.2015.05.003
Li SJ, Aung NZ, Zhang SZ, et al., 2013. Experimental and numerical investigation of cavitation phenomenon in flapper–nozzle pilot stage of an electrohydraulic servovalve. Computers & Fluids, 88:590–598. https://doi.org/10.1016/j.compfluid.2013.10.016
Lisowski E, Filo G, 2016. CFD analysis of the characteristics of a proportional flow control valve with an innovative opening shape. Energy Conversion and Management, 123:15–28. https://doi.org/10.1016/j.enconman.2016.06.025
Liu Q, Ye JH, Zhang G, et al., 2019. Study on the metrological performance of a swirlmeter affected by flow regulation with a sleeve valve. Flow Measurement and Instrumentation, 67:83–94. https://doi.org/10.1016/j.flowmeasinst.2019.04.003
Liu YH, Ji XW, 2009. Simulation of cavitation in rotary valve of hydraulic power steering gear. Science in China Series E: Technological Sciences, 52(11):3142–3148. https://doi.org/10.1007/s11431-009-0277-z
Lu L, Xie SH, Yin YB, et al., 2020. Experimental and numerical analysis on the surge instability characteristics of the vortex flow produced large vapor cavity in u-shape notch spool valve. International Journal of Heat and Mass Transfer, 146:118882. https://doi.org/10.1016/j.ijheatmasstransfer.2019.118882
Nie SL, Huan GH, Li YP, et al., 2006. Research on low cavitation in water hydraulic two-stage throttle poppet valve. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 220(3):167–179. https://doi.org/10.1243/09544089JPME78
Okita K, Miyamoto Y, Kataoka T, et al., 2015. Mechanism of noise generation by cavitation in hydraulic relief valve. Journal of Physics: Conference Series, 656(1):012104. https://doi.org/10.1088/1742-6596/656/1/012104
Ou GF, Xu J, Li WZ, et al., 2015. Investigation on cavitation flow in pressure relief valve with high pressure differentials for coal liquefaction. Procedia Engineering, 130:125–134. https://doi.org/10.1016/j.proeng.2015.12.182
Qian JY, Wei L, Jin ZJ, et al., 2014. CFD analysis on the dynamic flow characteristics of the pilot-control globe valve. Energy Conversion and Management, 87:220–226. https://doi.org/10.1016/j.enconman.2014.07.018
Qian JY, Hou CW, Wu JY, et al., 2019a. Aerodynamics analysis of superheated steam flow through multi-stage perforated plates. International Journal of Heat and Mass Transfer, 141:48–57. https://doi.org/10.1016/j.ijheatmasstransfer.2019.06.061
Qian JY, Gao ZX, Hou CW, et al., 2019b. A comprehensive review of cavitation in valves: mechanical heart valves and control valves. Bio-Design and Manufacturing, 2(2):119–136. https://doi.org/10.1007/s42242-019-00040-z
Qian JY, Wu JY, Gao ZX, et al., 2019c. Hydrogen decompression analysis by multi-stage Tesla valves for hydrogen fuel cell. International Journal of Hydrogen Energy, 44(26):13666–13674. https://doi.org/10.1016/j.ijhydene.2019.03.235
Qian JY, Chen MR, Gao ZX, et al., 2019d. Mach number and energy loss analysis inside multi-stage Tesla valves for hydrogen decompression. Energy, 179:647–654. https://doi.org/10.1016/j.energy.2019.05.064
Qian JY, Chen MR, Liu XL, et al., 2019e. A numerical investigation of the flow of nanofluids through a micro Tesla valve. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 20(1):50–60. https://doi.org/10.1631/jzus.A1800431
Qu WS, Tan L, Cao SL, et al., 2015. Experiment and numerical simulation of cavitation performance on a pressure-regulating valve with different openings. IOP Conference Series: Materials Science and Engineering, 72(4): 042035. https://doi.org/10.1088/1757-899X/72/4/042035
Schnerr GH, Sauer J, 2001. Physical and numerical modeling of unsteady cavitation dynamics. Proceedings of the 4th International Conference on Multiphase Flow.
Shi WJ, Cao SP, Luo XH, et al., 2017. Experimental research on the cavitation suppression in the water hydraulic throttle valve. Journal of Pressure Vessel Technology, 139(5):051302. https://doi.org/10.1115/1.4037443
Tao JY, Lin Z, Ma CJ, et al., 2020. An experimental and numerical study of regulating performance and flow loss in a V-port ball valve. Journal of Fluids Engineering, 142(2): 021207. https://doi.org/10.1115/1.4044986
Ulanicki B, Picinali L, Janus T, 2015. Measurements and analysis of cavitation in a pressure reducing valve during operation–a case study. Procedia Engineering, 119:270–279. https://doi.org/10.1016/j.proeng.2015.08.886
Wang C, Hu B, Zhu Y, et al., 2019. Numerical study on the gas-water two-phase flow in the self-priming process of self-priming centrifugal pump. Processes, 7(6):330. https://doi.org/10.3390/pr7060330
Wang GR, Tao SY, Liu QY, et al., 2014. Experimental validation on a new valve core of the throttle valve in managed pressure drilling. Advances in Mechanical Engineering, 2014:324219. https://doi.org/10.1155/2014/324219
Xu YQ, Guan ZC, Liu YW, et al., 2014. Structural optimization of downhole float valve via computational fluid dynamics. Engineering Failure Analysis, 44:85–94. https://doi.org/10.1016/j.engfailanal.2014.04.033
Yaghoubi H, Madani SAH, Alizadeh M, 2018. Numerical study on cavitation in a globe control valve with different numbers of anti-cavitation trims. Journal of Central South University, 25(11):2677–2687. https://doi.org/10.1007/s11771-018-3945-y
Zhang ZT, Cao SP, Luo XH, et al., 2017. New approach of suppressing cavitation in water hydraulic components. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 231(21):4022–4034. https://doi.org/10.1177/0954406216657847
Author information
Authors and Affiliations
Contributions
Chang QIU designed the research. Zhi-jiang JIN and Cheng-hang JIANG processed the corresponding data. Zhi-jiang JIN wrote the first draft of the manuscript. Jia-yi WU and Jin-yuan QIAN helped to organize the manuscript. Zhi-jiang JIN and Chang QIU revised and edited the final version.
Corresponding author
Ethics declarations
Zhi-jiang JIN, Chang QIU, Cheng-hang JIANG, Jia-yi WU, and Jin-yuan QIAN declare that they have no conflict of interest.
Additional information
Project supported by the National Natural Science Foundation of China (No. 51805470), the Zhejiang Provincial Natural Science Foundation of China (No. LY20E050016), the Zhejiang Provincial Key Research & Development Project (No. 2019C01025), the Youth Funds of the State Key Laboratory of Fluid Power and Mechatronic Systems (Zhejiang University) (No. SJKoFP-QN-1801), and the Zhejiang Provincial Quality and Technical Supervision Research Project (No. 20180117), China
Rights and permissions
About this article
Cite this article
Jin, Zj., Qiu, C., Jiang, Ch. et al. Effect of valve core shapes on cavitation flow through a sleeve regulating valve. J. Zhejiang Univ. Sci. A 21, 1–14 (2020). https://doi.org/10.1631/jzus.A1900528
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1631/jzus.A1900528