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在液压系统中,一些不需要的有害粒子,可能在制造阶段就被带入系统;也可能是含于流体之中,通过各种密封伴或油箱通道进入系统,也可能是在磨损作用下产生的。这些没有被液压过滤元件滤掉的微小粒子,就可能被带入沿系统循环的流体中,在系统停止运行期间(如夜间或周末停工时),悬浮的粒子将在重力作用下沉淀下来,并在系统中淤积成垢。当系统重新开始运行时,一部分沉积的污物受到液流的扰动而被重新带入液压流体,而那些没有被带走的污物将在重复的沉淀中逐渐积聚。当已经形成的很厚的污垢被流体的振荡而重新直接进入敏感的部件时,就会发生问题。本文将讨论一项能把污染杂质在管路和油箱中的运动说明得更清楚的实验研究的结果。
In the hydraulic system, some unwanted harmful particles, may be brought into the system during the manufacturing stage; may also be contained in the fluid, through the various seal companion or tank access to the system, it may be produced under the action of wear and tear of. These tiny particles, which are not filtered out by the hydraulic filter element, may be carried into the fluid circulating through the system. During the shutdown of the system (such as during nighttime or weekend shutdown), suspended particles will settle under gravity and In the system siltation into scale. When the system resumes operation, a portion of the deposited dirt is re-entrained in the hydraulic fluid by the fluid flow, and the un-taken dirt gradually accumulates in the repeated settling. A problem occurs when the thick dirt that has formed is re-directed directly into the sensitive components by fluid oscillations. This article will discuss the results of an experimental study to clarify the movement of contaminants in pipelines and tanks.