Simulation of Unsteady Flow Characteristics of the Reciprocating Pump Check Valve for High Pressure and High Flow Water Medium

doi:10.1115/1.4052177

CORC > 兰州理工大学 > 兰州理工大学 > 科学技术处（军民融合领导小组办公室）

	Simulation of Unsteady Flow Characteristics of the Reciprocating Pump Check Valve for High Pressure and High Flow Water Medium
	Dong, Jie 1; Liu, Yinshui 2; Ji, Hong 1; Wei, Liejiang 1; Wu, Defa 2
刊名	JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
	2022-03-01
卷号	144 期号:3
关键词	computational fluid dynamics unsteady flows suction coefficient two-stage throttles dynamic grid
ISSN号	0098-2202
DOI	10.1115/1.4052177
英文摘要	The distribution efficiency of the check valve directly affects the performance of the reciprocating pump. The flow coefficient is an important evaluation criterion for the flow capacity of the valve port, and it is of great significance to the design of the valve structure and even the control of cavitation. The traditional design uses flow coefficient as a fixed value, however, the flow state and flow coefficient will change during valve movement. In this study, a three-dimensional transient computational fluid dynamic model for high-pressure and large-flow reciprocating pump valve is established. The dynamic grid simulation method of coupling for the valves and plunger is innovatively proposed, and experimental verification was carried out. The flow state and pressure characteristics for the suction valve under high outlet pressure are analyzed, and the change rule of the suction coefficient is found. The research results show that the initial pressure of the plunger cavity prolongs the negative pressure duration of the plunger cavity when the valve is opened and increases the risk of cavitation of the valve. During the process from valve opening to maximum lift, the suction coefficient first increases and then decreases, and finally remains between 0.5 and 0.6. When the valve lift is large, two-stage throttling occurs, and the flow state will change from cylindrical jet on the lower surface of the valve disk to annular jet, which is beneficial to improve the suction coefficient.
WOS研究方向	Engineering
语种	英语
出版者	ASME
WOS记录号	WOS:000751919600004
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154780]
专题	科学技术处（军民融合领导小组办公室）
作者单位	1.Lanzhou Univ Technol, Sch Energy & Power, Lanzhou 730050, Peoples R China; 2.Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Dong, Jie,Liu, Yinshui,Ji, Hong,et al. Simulation of Unsteady Flow Characteristics of the Reciprocating Pump Check Valve for High Pressure and High Flow Water Medium[J]. JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME,2022,144(3).
APA	Dong, Jie,Liu, Yinshui,Ji, Hong,Wei, Liejiang,&Wu, Defa.(2022).Simulation of Unsteady Flow Characteristics of the Reciprocating Pump Check Valve for High Pressure and High Flow Water Medium.JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME,144(3).
MLA	Dong, Jie,et al."Simulation of Unsteady Flow Characteristics of the Reciprocating Pump Check Valve for High Pressure and High Flow Water Medium".JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME 144.3(2022).