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  • 机械密封件的基本知识
  • 本站编辑:杭州久密机械科技有限公司发布日期:2019-12-19 19:45 浏览次数:

机械密封件属于精密、结构较为复杂的机械基础元件之一,是各种泵类、反应合成釜、透平压缩机、潜水电机等设备的关键部件。

1、机械密封的基本概念:

机械密封是指由至少一对垂直于旋转轴线的端面在流体压力和补偿机构弹力(或磁力)的作用下以及辅助密封的配合下保持贴合并相对滑动而构成的防止流体泄漏的装置。补偿环的辅助密封为金属波纹管的称为波纹管机械密封。

2、机械密封的组成:

主要有以下四类部件。

a.主要密封件:动环和静环。

b.辅助密封件:密封圈。

c.压紧件:弹簧、推环。

d.传动件:弹箕座及键或固定螺钉


Mechanical Seal is one of the basic mechanical components with precision and complex structure, and is the key component of various pumps, reaction synthesis kettle, turbine compressor, submersible motor and other equipment. 1. The basic concept of mechanical seal: Mechanical Seal is by at least a pair of vertical axis of rotation under the action of fluid pressure and compensation mechanism elastic or magnetic force, and with the cooperation of auxiliary seal to maintain the combination and relative sliding fluid leakage device. The auxiliary seal of the Compensation Ring is called the mechanical seal of the metal bellows. 2. Composition of mechanical seals: There are four main types of components. A. Main seals: moving ring and static ring. B. AUXILIARY SEAL: Seal Ring. C. Pressing Parts: Spring, push ring. D. Transmission Parts: Elastic skip seat and key or fixing screw