高压大直径深水模拟试验舱自适应密封设计与分析

发布时间：2018-03-31 07:06

  本文选题：深水　切入点：高压　出处：《中国海上油气》2016年06期

【摘要】：为解决海洋深水高压模拟试验舱在大直径(2 500 mm)、高压(40 MPa)下的密封问题,基于双筒式结构受内压后内外层变形协调机理,设计了一种新型自适应膨胀式密封装置。根据推导的自适应膨胀式密封的径向补偿间隙理论计算公式,确定了既定密封圈厚度、高压舱舱体与膨胀圈的主体尺寸以及初始径向间隙值,在此基础上开展了高压大直径深水模拟试验舱自封式密封效果数值模拟与密封性能试验检测,结果表明所设计的自适应膨胀式密封装置能满足额定工作压力下高压舱的径向密封与端面密封要求,采用自适应膨胀密封设计的高压大直径深水模拟试验舱能够满足最高52.5 MPa试验压力下的密封要求。
[Abstract]:In order to solve the sealing problem of ocean deep water high pressure simulation test chamber under the condition of large diameter of 2 500 mm / m and high pressure of 40 MPA, based on the deformation coordination mechanism of the inner and outer layers of the double cylinder structure subjected to internal pressure, A new type of adaptive expansion seal device is designed. According to the theoretical calculation formula of radial compensation clearance of adaptive expansion seal, the thickness of the seal ring is determined. On the basis of the main dimensions and initial radial clearance of the bulkhead and the expansion ring, the self-sealing effect of the high-pressure and large-diameter deep-water simulated test chamber was simulated and the sealing performance test was carried out. The results show that the self-adaptive expansion sealing device can meet the requirements of radial seal and end face seal of high pressure chamber under rated working pressure. The high pressure large diameter deep water simulated test chamber designed with adaptive expansion seal can meet the sealing requirements under the test pressure of up to 52. 5 MPa.
【作者单位】： 西南石油大学机电工程学院;石油天然气装备教育部重点实验室;四川海洋特种技术研究所;中国石油天然气管道科学研究院;
【基金】：“十二五”国家科技重大专项“大型油气田及煤层气开发”子课题“深水模拟高压舱研究(编号:2011ZX05027-004-003-002-003)” 工信部“第七代超深水钻井平台(船)创新专项——钻井包集成及部分关键设备应用研究(编号:工信部联装[2016]24号)”部分研究成果
【分类号】：TE95
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本文编号：1689666