污水泵的不同堵塞特性

D. Beck, Yvonne Holzbauer, P. Thamsen
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引用次数: 1

摘要

由于废水中抗撕裂纤维材料和新型卫生用品(如湿巾)的比例不断增加,废水的输送给运营商的废水泵带来了越来越大的挑战。本文介绍了在功能性能试验中记录的污水泵的不同堵塞行为。除了发现易堵塞的点外,还讨论了叶轮对固体的最大吸收。固体的最大吸收量被定义为饱和度。此外,还分析了不同堵塞行为对水力性能的影响程度以及由此产生的效率变化。在这些测试中,很明显,废水泵对堵塞的反应非常不同。一方面,它会导致液压功能的降低,从而降低系统的效率。这里必须加以区分的是,当泵具有一定数量的固体和一定程度的饱和时,它是保持其功能还是停止工作。另一方面,液压性能几乎可以保持不变,或者在某些情况下,尽管发生堵塞,但这伴随着功率需求的增加,从而可能降低系统的使用寿命和效率。
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Different Clogging Behavior of Wastewater Pumps
The transport of wastewater presents operators with increasing challenges for their wastewater pumps due to an increasing proportion of tear-resistant fibrous materials and new types of hygiene articles (e.g. wet wipes) in the wastewater. This paper describes the different clogging behavior of wastewater pumps, which were recorded during the functional performance tests. In addition to the findings of the points susceptible to clogging, the maximum uptake of solids by an impeller is also discussed. The maximum uptake of solids is defined as the degree of saturation. Furthermore, it is shown to what extent the different clogging behavior influence the hydraulic performance and the resulting efficiency changes. In these tests, it became apparent that wastewater pumps react very differently to clogging. On the one hand, it can lead to a reduction in hydraulic function, which reduces the efficiency of the system. A distinction must be made here as to whether the pumps with a certain number of solids, a defined degree of saturation, retain their function or are brought to a standstill. On the other hand, the hydraulic performance can remain almost constant or, in some cases, be increased despite the clogging that occurs, but this is accompanied by an increased power requirement and can thus reduce the service life and the efficiency of the system.
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