Characteristic analysis of a water hydraulic pilot-operated pressure-reducing valve

3rd International Conference on Advances in Energy, Environment and Chemical Engineering

能源学;生态环境科学;化学工业

Mao, Xuyao^1 ; Hu, Junhua^1 ; Wu, Chao^1 ; Liu, Yiou^1 ; Liu, Yinshui^2

Wuhan Second Ship Design and Research Institute, Wuhan, China^1

Huazhong University of Science and Technology, Wuhan, China^2

关键词: Characteristic analysis;    Constant pressures;    Outlet pressures;    Pressure reducing valves;    Pressure variations;    Spring chambers;    Static and dynamic analysis;    Water hydraulics;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/69/1/012072/pdf
DOI  :  10.1088/1755-1315/69/1/012072

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Comprehensive characteristics of a seawater hydraulic pilot-operated pressure-reducing valve with constant pressure output were analyzed. A rated pressure of 15MPa and a rated flowrate of 40L/min were offered in the numerical work. Static and dynamic analyses show good behaviors: The settling time is less than 0.2s, the output pressure variation is about 0.3MPa at the maximum when input pressure or flowrate is flucturing, and the steady external leakage is below 0.025L/min. The pilot spring regulates the output pressure and the main spring has an ability to adjust the output pressure variation faintly. The narrow hole diameter of the adjustable damping plugs is negatively related to the respond time. And appropriately raising the spring chamber volume can evidently reduce outlet pressure impact of the valve when input mutations happen.