The purpose of this paper is to conduct research on the energy dissipation rate of sleeve valves,and establish a three-dimensional model to numerically simulate the internal flow field using.Fluent simu-lation software.It analyzed the flow field distribution and energy dissipation effect of traditional sleeve valves under different opening angles.Through structural improvement,a new type of swirling sleeve valve was proposed to study the impact of changes in the tangential angle of the sleeve window of the swirling sleeve valve on the energy dissipation effect of the valve.A comparative analysis was conducted on the ener-gy dissipation effect and cavitation characteristics of traditional sleeve valves and swirling sleeve valves at various openings.The results show that the energy dissipation effect of traditional sleeve valves is lower than that of rotary sleeve valves,and cavitation phenomenon is prone to occur at the pipe wall and sleeve.Increasing the tangential angle of the swirl sleeve can improve its energy dissipation effect,and cavitation is less likely to occur at the pipe wall and sleeve.Based on comprehensive energy dissipation rate and cavitati-on analysis,when the tangential angle of the groove is 30°,the swirling sleeve valve has a good energy dissi-pation and pressure reduction effect,and the valve has a low air content,which can prevent cavitation from damaging the parts inside the valve and the pipeline wall.
关键词
旋流式套筒阀/切向角/数值模拟/消能率/气蚀
Key words
Swirl type sleeve valve/Tangential angle/Numerical simulation/Energy dissipation rate/Cavitation
维普
万方数据