Efficiency analysis of ultrahigh pressure hydraulic intensifier

WANG Haibo, JIN Chengzhu
（School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China）

Abstract: Aiming at reducing the energy loss of hydraulic intensifier in operation and improving the overall performance of ultrahigh pressure water jet equipment, an ultrahigh pressure water jet equipment was taken as an example. The kinematics model of its intensifier was built. Based on Matlab software, the numerical analysis of kinematics differential equations was done to research the relationship between intensifiers running efficiency and main design parameters. The results show that the influence factors of intensifiers running efficiency mainly are damping coefficient, the volume of high pressure pipeline between intensifier and holding valve, reversal time, output pressure of intensifier, return pressure of water jet system, etc.. The analysis result of intensifiers running efficiency provides a basis for the enhancement of intensifiers running efficiency and the improvement of the performance of ultrahigh pressure water jet system.
Key words: ultrahigh pressure water jet; hydraulic intensifier; dynamic characteristic; efficiency