| 螺旋槽泵出型干气密封端面气膜压力近似解析计算 |
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| 引用本文： | 宋鹏云,丁志浩.螺旋槽泵出型干气密封端面气膜压力近似解析计算[J].润滑与密封,2011,36(4). |
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| 作者姓名： | 宋鹏云 丁志浩 |
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| 作者单位： | 1. 昆明理工大学化学工程学院,云南昆明,650224
2. 昆明太思密封技术有限公司,云南昆明,650033 |
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| 基金项目： | 国家自然科学基金项目(10962003) |
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| 摘 要： | 大多数螺旋槽干气密封采用高压密封气体在密封环外侧的泵入式结构。近来,出现了高压气体在密封环内侧的泵出型螺旋槽干气密封,而这类密封常用来密封液体介质。采用Mu ijderman完善的螺旋槽窄槽理论,给出泵出型螺旋槽干气密封端面气膜力的一种近似解析计算方法,给出计算案例,并与泵入型结构进行对比。计算结果表明,同样条件下,泵出型干气密封的端面开启力小于泵入型。
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| 关 键 词： | 干气密封 螺旋槽 泵出型 气膜压力 |
An Approximate Analytical Method of the Gas Film Pressure of the Outward Pumping Spiral Groove Dry Gas Seals |
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| Song Pengyun,Ding Zhihao.An Approximate Analytical Method of the Gas Film Pressure of the Outward Pumping Spiral Groove Dry Gas Seals[J].Lubrication Engineering,2011,36(4). |
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| Authors: | Song Pengyun Ding Zhihao |
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| Affiliation: | Song Pengyun1 Ding Zhihao2(1.Faculty of Chemical Engineering,Kunming University of Science and Technology,Kunming Yunnan 650224,China,2.Kunming Tighscis Sealing Technology Co.,Ltd,Kunming Yunnan 650033,China) |
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| Abstract: | Most of the spiral groove dry gas seals are inward pumping with the sealed high pressure gas being at the outside diameter sides.Recently,the outward pumping spiral groove dry gas seals have come to use with the pressured gas being at the inside diameter sides,but the sealed fluid,common liquid,being at the outside diameter sides of the sealing rings.An approximate analytical method was presented to calculate the gas film pressure between the two seal faces of the spiral groove dry gas seals,which stemmed f... |
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| Keywords: | dry gas seal spiral groove outward pumping gas film pressure |
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