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成品油库主输泵出口阀门不同密封结构性能分析
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Performance Analysis of Valve Sealing Structures of Oil Product Pipeline
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    摘要:

    以某成品油管道闸阀为研究对象,建立阀杆处密封结构的分析模型,研究3种不同密封结构中密封效果与介质压力之间的关系,提出阀杆处密封性能的综合评定方法。结果表明:阀杆处密封性能可从密封接触面间最大接触应力、密封件实际工况下米塞斯应力峰值和密封件在密封介质压力作用下的变形情况3个方面进行综合评定。研究的3种密封结构无能满足密封的要求,其中V形沟槽内密封圈的密封能力最强,矩形沟槽内滑环式组合圈的密封能力最差;在相同工况下V形沟槽内密封圈米塞斯应力峰值最大,矩形沟槽内滑环式组合圈米塞斯应力峰值最小;组合圈与矩形沟槽配合的结构能有效解决密封件被挤入沟槽的情况。

    Abstract:

    Aimed at the valve used in oil product pipeline,the analysis model of the sealing structure of the stem was established,the relationship between the sealing effect and the sealing medium pressure was studied for three kinds of different sealing structures.A new valve stem seal performance comprehensive evaluation method was proposed.The results show that the sealing performance of the valve stem can be evaluated from three aspects,the maximum contact stress between the sealing contact surface,the peak Mises stress in the actual working condition of the seal and the deformation of the seal under the pressure of sealing medium.The sealing performance of the sealing ring with Vshaped groove is the strongest among the three kinds of sealing structures,and the slip ringtype combination ring with rectangular groove posses the worst sealing performance.Under the same conditions,the peak value of Mises stress of the sealing ring with Vshaped groove is the largest,and the peak value of Mises stress of the slip ringtype combination ring with rectangular groove is the smallest.The combination of the combined ring with the rectangular groove can effectively solve the problem that the seal ring is squeezed into the groove.

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高九阳,郭进全.成品油库主输泵出口阀门不同密封结构性能分析[J].润滑与密封,2016,41(12):117-121.
. Performance Analysis of Valve Sealing Structures of Oil Product Pipeline[J]. Lubrication Engineering,2016,41(12):117-121.

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  • 在线发布日期: 2017-03-30
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