Calculating and designing end seals for pipeline equipment

The paper discusses the effects of roughness and corrugation in metal-metal seal contacting surfaces on the sealing. A method is given for calculating the sealing factor by a finite-element method, which includes the design dimensions of the seal, the actual microgeometry of the working surfaces (derived by three-dimensional analysis), and the physical characteristics of the working medium.     

羰基合成蒸气透平轴端密封泄漏分析及改造

分析了丁辛醇装置羰基合成3741蒸气透平轴端原粘性螺旋泵送蒸汽密封泄漏量超标的原因,阐述了采用"梳齿-蜂窝可刮削"蒸汽密封对透平轴端密封进行改造的整体过程。解决了轴封泄漏超标的设备故障,提高了我国工业驱动高速蒸汽轮机轴封的设计制造水平,具有推广价值。