Design Optimization of V-sector Ball Valve Core

2019 3rd International Workshop on Renewable Energy and Development

能源学;生态环境科学

Zhang, Hao-Nan^1 ; Wang, Guo-Feng^1 ; Zhao, Qiao-Nan^1

Shenyang Institute of Engineering, Shenyang

100136, China^1

关键词: Design optimization;    Equivalence to;    Opening areas;    Opening degree;    Optimization design;    Optimized designs;    Sample means;    Valve cores;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/267/3/032076/pdf
DOI  :  10.1088/1755-1315/267/3/032076

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to solve the problem that the percentage characteristic of V-sector ball valve is poor at the relatively small opening degree, a design optimization flow of valve core is proposed for the first time. The process uses numerical simulation, sample mean evaluation and area average equivalence to calculate the equal percentage characteristics coefficient RQ of DN65 V-sector ball valve core, and uses experiments to verify the rationality of the process, and further extends it to other models of ball valves. The results show that the original DN65 V-sector Ball valve core does not meet the equal percentage characteristics in the opening area of 28.6 % to 7.1 %. After the optimized design, the equal percentage characteristics coefficient RQ of the ball valve core has been effectively improved, and the level of increase has more than doubled. And the equal percentage characteristics coefficient obtained by test exceeds the optimized design results. Further extended in the DN100 V-sector ball valve core, it is known that this optimization design method has universal applicability; V-sector ball valve core design optimization method is an efficient and reliable valve core design method, can improve the level of Valve core flow control, improve the valve core design ability.