流体密封技术  

Fluid seals technology

作　　者：王玉明 杨惠霞 姜南 

机构地区：[1]天津新技术产业园区鼎名密封有限公司,天津300384

出　　处：《液压气动与密封》2004年第3期1-5,共5页Hydraulics Pneumatics & Seals

摘　　要：流体密封作为一门新兴的工程技术学科正越来越受到各行业的关注。本文对流体密封的定义、作用、重要性、分类、涉及的主要学科、主要应用领域以及最新进展作一简单介绍,并阐述了高速透平压缩机轴封经历的四个发展阶段:迷宫密封、浮环密封、机械密封、干气密封。干气密封是最先进的轴端密封形式,已在炼油、化工等行业高速透平压缩机上得到越来越广泛的应用。As a new engineering technical discipline, the fluid seals has been recognizing by many sectors. This article briefly presented the definition, functions, importance, classification, relevant main subjects, major applications and the latest situation of the fluid seals. And it was described the four phases developed in the shaft seals of the high speed turbine compressor, i.e. labyrinth seals; floating bushing seals; mechanical/ face sealing/ seals and dry (running) gas seals, among which the most advanced one is the dry (running) gas seals that have been widely used in the high speed turbine compressors in the oil refining and chemical industries.

关 键 词：流体密封 动密封 机械密封 干气密封 迷宫密封 浮环密封 

分 类 号：TH136[机械工程—机械制造及自动化]