Instability Prediction of Valve Motion and Internal Flow in Novel Large-scale Reciprocating Pump

Yi Ma; Yutao Chen; He Zhang; Huashuai Luo; Hongying Deng

doi:10.5293/IJFMS.2019.12.1.001

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자료유형: 학술저널

저자정보: Yi Ma (Zhejiang University of Technology) Yutao Chen (Zhejiang University of Technology) He Zhang (Ningbo Tongli Pump Industry Co) Huashuai Luo (Zhejiang University of Technology) Hongying Deng (Zhejiang University of Technology)

저널정보: 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.12 No.1

발행연도: 2019.3

수록면: 1 - 11 (11page)

DOI: 10.5293/IJFMS.2019.12.1.001

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To study the transient valve motions and flow pulsation of novel five-cylinder double-acting reciprocating pump, the theoretical analysis and computational fluid dynamics (CFD) method are employed to investigate the full-cycle working process of the pump. The theoretical models describing the motions and flow rates of hydraulic end are established for reciprocating pump under the actions of piston and valves. The open-close behavior of suction and discharge valves, internal turbulent flow and pulsation characteristics of the pump are studied and the effects of crank speed on those are analyzed in detail. The results show that the valves of reciprocating pump open and close quickly and non-linearly with various degrees of striking velocities and lag phenomena. Through the time and frequency domain results of flow pulsation, the single-cavity frequency is the dominant frequency. The most obvious amplitude appears for discharge flow pulsation, which gradually increases with crank speed. The results could provide useful information for the optimization of reciprocating pumping systems.

#Reciprocating pump #Dynamic grid technique #Instability prediction #Valve motion #Flow pulsation

참고문헌 (20)

참고문헌 신청

Opitz, K. / 2010 / Detection of Cavitation Phenomena in Reciprocating Pumps Using a High-speed Camera / Chemical Engineering & Technology 33(10):1610~1614

홍성호 / 2016 / Improvement of lubrication characteristics in the reciprocating fuel pump of marine diesel engines / Journal of Mechanical Science and Technology 30(11):5225~5232

Zhang, H. / 2017 / Sensitivity Analysis and Optimal Operation Control for Large-scale Waterflooding Pipeline Network of Oilfield / Journal of Petroleum Science and Engineering 154(6):38~48

Landelle, A. / 2017 / Performance Investigation of Reciprocating Pump Running with Organic Fluid for Organic Rankine Cycle / Applied Thermal Engineering 113(2):962~969

Li, Q. / 2018 / Comparative Study on the Pumping Losses between Continuous Variable Valve Lift (CVVL) Engine and Variable Valve Timing (VVT) Engine / Applied Thermal Engineering 137(5):710~720

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