引言在多数船用和工业应用中,机械密封不仅要承受恒高压引起的变形作用,还要承受由于压力波动而引起的变化的变形的影响。此压力变动范围很宽,但仍属于高压范围。本文的目的在于考查高压和压力波动如何影响现有密封的性能;评价目前正在进行的关于扩大密封的压力范围而不改变所用材料的工作;同时考虑怎样把在单密封结构中所获得的改进运用于双密封。这使压力范围的扩大不仅 INTRODUCTION In most marine and industrial applications, mechanical seals not only have to withstand the effects of deformation due to constant high pressure, but also to varying deformations caused by pressure fluctuations. This pressure range is wide but still within the high pressure range. The purpose of this paper is to examine how high pressure and pressure fluctuations affect the performance of existing seals; to evaluate the ongoing work on expanding the pressure range of the seal without changing the material used; and to consider how the improved utilization of the single seal structure Double sealed. This expands the pressure range not only