化工学报Issue(7)：2464-2473,10.DOI:10.11949/j.issn.0438-1157.20150204
基于数值模拟的自泵送机械密封正交试验
Orthogonal test of self-pumping mechanical seals based on numerical simulation
摘要
Abstract
A kind of self-pumping hydrodynamic mechanical seal, that the liquid inlet groove was arranged on the stationary ring and the dynamic pressure groove was distributed on the rotating ring, was put forward based on the principle of centrifugal pump. The experimental scheme of the self-pumping mechanical seals was designed by orthogonal test. The numerical simulation experiments were carried out based on Fluent, including discussing the significant effects of every parameter on the face opening force and the leakage rate. The numerical results showed that the groove number Ng, the ratio of groove length and dam lengthγ, the ratio of groove width and ridge width d, and the pressure p were the significant factors affecting the opening force FO and the leakage rate Q within the experimental ranges. Besides, the rotate speed n also affected Q significantly. Specifically, FO was increased with increasingγ, d and p, while decreased with increasing Ng. The influence ofγ, d, p and Ng on Q was similar to that on FO. But Q was also increased with increasing n. The preliminary optimization of sealing structure was brought forward by analyzing the results of orthogonal test.关键词
自泵送机械密封/正交试验/数值模拟/计算流体力学/优化Key words
self-pumping mechanical seal/orthogonal test/numerical simulation/CFD/optimization分类
机械制造引用本文复制引用
顾东升,孙见君,马晨波,陆建花..基于数值模拟的自泵送机械密封正交试验[J].化工学报,2015,(7):2464-2473,10.基金项目
国家级大学生实践创新训练计划资助项目（201410298051Z）。 （）
