排灌机械工程学报2025，Vol.43Issue(5)：463-469,476,8.DOI:10.3969/j.issn.1674-8530.23.0169
基于流固耦合的隔膜泵单向阀端盖螺栓优化设计
Optimization design of bolts for check valves end cover of diaphragm pump based on fluid-structure interaction
摘要
Abstract
To address the issues with the bolted connections on the end cover of the inlet check valve of the diaphragm pump in the iron concentrate slurry transportation pipeline,a three-dimensional model of the check valve and a solid-liquid two-phase flow model of the slurry were established.Using the fluid-structure interaction method,the load spectrum on the end cover and the stress conditions of the bolts at different opening degrees of the valve core were analyzed.On this basis,the genetic optimiza-tion algorithm was applied to conduct the layout optimization design of the bolts on the check valve end cover.The optimized layouts of bolts with different performance grades were obtained,and the effec-tiveness of the optimization results was verified.The research results show that when the performance grade of the bolts is maintained at grade 12.9,the number of bolts can be increased from the original 8 to 10,the diameter of each single bolt can be reduced by 6 mm,and the total volume of the bolts can be decreased by 8.2%.This achieves a lightweight design and reduces the stress on each single bolt.If the current number and diameter of the bolts remain unchanged,the performance grade of the bolts can be reduced to grade 10.9,which effectively reduces the production cost and is also the most easily im-plementable technical improvement plan.The research results can provide a certain basis for the up-grade and improvement of the check valve and have important engineering application value in terms of lightweight design and cost control.关键词
隔膜泵/单向阀/螺栓布局/流固耦合/矿浆输送Key words
diaphragm pump/check valve/bolt layout/fluid-structure coupling/slurry conveying分类
机械工程引用本文复制引用
韩世昌,王杰,李茜,解天华,李妍,康宇驰..基于流固耦合的隔膜泵单向阀端盖螺栓优化设计[J].排灌机械工程学报,2025,43(5):463-469,476,8.基金项目
云南省科技厅科技计划项目(202001AU070032) （202001AU070032）
