化学工程2025，Vol.53Issue(4)：59-64,6.DOI:10.3969/j.issn.1005-9954.2025.04.011
多因素耦合下燃气管道非定型弯管冲蚀模拟
Simulation of non-fixed bend erosion in gas pipelines under multi-factor coupling
摘要
Abstract
Special angle bend pipes are widely used in practical gas pipeline engineering.Due to the special angle of non-fixed bend pipes,the sudden changes in flow velocity and pressure caused by fluid passing through the bend pipes make them more prone to erosion and even failure.Based on gas-solid two-phase coupling,DPM and erosion model,CFD simulation was used to establish a finite element volume mathematical model to simulate the erosion and corrosion of a 106.4° amorphous bend pipe in a gas pipeline in Lanzhou.The erosion and corrosion characteristics of the bend pipe under actual working conditions and coupled with different factors such as flow velocity,moisture content and particle diameter were analyzed.The results show that under actual working conditions,particle erosion is concentrated on the outer wall surface,with a symmetrical distribution area along the curved surface,forming a"beetle"shape.In the four cases of coupling flow rate and mass flow rate,moisture content and flow rate,particle size and density,temperature and particle density,the first three factors are linearly identity correlated with erosion rate,while the latter is reciprocal correlated.It is found that at a flow rate of 0.1 kg/s,as the flow rate increases,the erosion area shifts to the right,and the moisture content of 0.008％-0.01％has the greatest impact on the erosion rate of amorphous bent pipes.关键词
燃气管道/非定型弯管/耦合多因素/冲蚀/模拟Key words
gas pipeline/non fixed bend pipe/coupling multiple factors/erosion/simulation分类
能源科技引用本文复制引用
郭凯,严哲楸,凌晓..多因素耦合下燃气管道非定型弯管冲蚀模拟[J].化学工程,2025,53(4):59-64,6.基金项目
国家自然科学基金资助项目(52204074) （52204074）
甘肃省科技专员专项(23CXGA0053) （23CXGA0053）
甘肃省教育厅青年博士基金(2024QB-026) （2024QB-026）
兰州理工大学红柳优青人才计划(02/062310) （02/062310）
