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润滑液膜在热力耦合下对螺旋槽密封环变形的影响

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以螺旋槽机械密封的动静环为研究对象,首先在Solidworks建立三维密封环模型,然后将其导人ANSYS-Workbench的Static Structural场进行热-力耦合模拟计算,研究两环在液膜力与环境热共同耦合作用下的变形情况.结果表明:动环端面由于微沟槽存在结构不连续,应力集中明显,槽根径区域的应力较大;静环端面结构连续,中径处没有应力集中现象,内外径边缘由于强制约束以及接触应力的作用,致使应力较大.动静环的变形量均随压力的增大线性增大,密封环材料始终处在线弹性阶段,材料对热效应不敏感.此时,应力引起的变形起主导作用.
Effect of Lubricating Fluid Film on the Deformation of Spiral Groove Sealing Ring under Thermal Coupling
Taking the dynamic and static ring of the spiral groove mechanical seal as the research object,the three-dimensional sealing ring model was first established in Solidworks,and then it was imported into the Static Structural field of ANSYS-Workbench for thermal-mechanical cou-pling simulation calculation,and the deformation of the two rings under the coupling effect of liquid film force and environmental heat was studied.The end face of the dynamic ring is discontinuous due to the micro-grooves,the end face structure of the static ring is continuous,there is no stress concentration at the middle diameter,and the stress at the inner and outer diameter edges is large due to the forced restraint and contact stress.The deformation of the dynamic and static rings increases linearly with the increase of pressure,and the sealing ring material is always in the linear elas-tic stage,and the material is not sensitive to the thermal effect,and the deformation caused by mechanical stress plays a leading role.

Mechanical SealSpiral GrooveThermal-mechanical CouplingThe Amount of Deformation

张依婷、叶得伟、陈汉卿、马高峰

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兰州石化职业技术大学 能源与动力工程学院,甘肃 兰州 730060

机械密封 螺旋槽 热-力耦合 变形量

2024

云南化工
云南省化工研究院 云天化集团有限责任公司 云南煤化工集团有限公司 云南省化学化工学会

云南化工

影响因子:0.272
ISSN:1004-275X
年,卷(期):2024.51(9)