化工学报2016，Vol.67Issue(10)：4370-4377,8.DOI:10.11949/j.issn.0438-1157.20160419
自泵送机械密封与螺旋槽机械密封的性能比较
Performance comparison of self-pumping and spiral groove mechanical seals
摘要
Abstract
3D flow field dynamics of two hydrodynamic mechanical seals of self-pumping and spiral groove, which were based on “pumping in” principle, were simulated by Fluent software. Sealing properties of opening force and leakage rate were compared on these two seals at various structural and operating parameters. The numerical simulation results showed that, at the same structure and operating condition, the spiral groove mechanical seal had higher hydrodynamic effect and leakage rate but lower ratio of opening force over leakage rate than self-pumping mechanical seal. In terms of seal performance of opening force and leakage rate, the impact of both transverse structure parameters and rotating speed were significant to spiral groove mechanical seal but insignificant to self-pumping mechanical seal. The performance of hydrodynamic mechanical seals is more dependent on dimensions for spiral groove mechanical seal than for self-pumping mechanical seal.关键词
机械密封/模型/数值模拟/计算流体力学/开启力/泄漏率Key words
mechanical seals/model/numerical simulation/CFD/opening force/leakage rate分类
机械制造引用本文复制引用
陆建花,孙见君,陈卫,马晨波,严彦..自泵送机械密封与螺旋槽机械密封的性能比较[J].化工学报,2016,67(10):4370-4377,8.基金项目
国家自然科学基金项目（51375245，51505230）；江苏省自然科学基金项目（BK20130976）；扬州市工业前瞻性研究计划项目（YZ2014092）。@@@@Foundation item：supported by the National Natural Science Foundation of China (51375245,51505230), the Natural Science Foundation of Jiangsu Province (BK20130976) and the Yangzhou City Industrial Prospective Study Program (YZ2014092) （51375245,51505230）
