摘要
针对巷道临时支护支架同步系统中同步阀的气蚀现象,采用Fluent建立了阀腔多相流模型,研究了不同参数(阀口排数、固定节流口直径、双排阀口间距离、阀口数)对阀腔内气蚀强度与分布的影响规律,通过优化得到了各参数的最优值。结果表明:当同步阀采用双排机构、固定节流口直径为6mm、双排阀口距离为10.5mm、阀口数为12时,与初始的阀腔流场相比最大气相体积分数降低24%,气蚀面积缩小,抗气蚀能力得到增强。
Aiming at the cavitation phenomenon of synchronous valve in synchronous system of temporary support in roadway, the multiphase flow model of valve cavity was established by FLUENT. The influence laws of different parameters(number of valve ports, diameter of fixed throttle ports, distance between double row valve ports, number of valve ports) on the cavitation intensity and distribution in the valve chamber was studied. The optimal values of each parameter were obtained by optimization. The results show that when the synchronous valve adopts a double-row mechanism, the diameter of the fixed orifice is 6 mm, the distance of the double-row orifice is 10.5mm, and the number of orifices is 12, the maximum volume fraction of vapor phase is reduced by 24%, compared with the initial flow field in the valve chamber, the cavitation area is reduced, and the cavitation resistance is enhanced.
作者
骆元庆
何涛
王传礼
罗刚
秦颖
LUO Yuan-qing;HE Tao;WANG Chuan-li;LUO Gang;QIN Ying(Anhui Key Laboratory of Mine Intelligent Equipment and Technology,Huainan 232001,China;School of Mechanical Engineering,Anhui University of Science and Technology,Huainan 232001,China;Collaborative Innovation Center of Mining Intelligcnt Technology and Equipment of Ministry of Education,Huainan 232001,China)
出处
《煤炭工程》
北大核心
2023年第1期100-105,共6页
Coal Engineering
基金
国家自然科学基金(52205041
51675003)
安徽省高校优秀青年人才支持计划项目(gxyq2022017)
矿山智能装备与技术安徽省重点实验室开放基金(ZKSYS202101)。
关键词
临时支护支架
同步阀
气蚀特性
结构优化
temporary support bracket
synchronous valve
cavitation characteristics
structural optimization
