什麼是垂直浸沒泵？

Vertical immersion pumps, also referred to as垂直軸泵or column pumps, are a pumping technology with an elongated shaft encased in a column to separate the motor from the pump. Whilst the pump impellers are immersed in the fluid inside the casing, the long vertical shaft allows the motor to stay outside the fluid. Vertical column pumps differ to a submersible pump as with those the whole assembly is immersed.

Cantilever pumps are a similar looking design with similar uses but differ in that they have an extended motor shaft and are therefore limited in length to around 1.5m to 2m as beyond this length the radial force becomes too great. Vertical immersion pumps on the other hand have a separate working shaft to the motor, meaning they can be manufactured to considerably longer lengths for deeper sumps and containers. It also means that this type of column pump does not rely on a single bearing to take it’s load, adding strength and increasing life span.

垂直柱泵的設計優勢

垂直線軸泵的設計給出了其他泵類型的幾種不同用途，並且定期比較潛水泵。

• Ideal for deep tanks, sump and well emptying –隨著泵頭在流體內，垂直浸沒的泵保持泛濫的吸力。因此，它們非常適用於所需自引導泵的應用，例如罐，儲存器，油底殼和井的排空。這就是它們被廣泛稱為垂直油底殼泵的原因。垂直軸泵的長度將由所討論的容器的深度確定。

• Can handle high temperature fluids——高溫液體通常是fo負責r the degrading of pump seals, which is why submersible pumps are not usually suitable. However, vertical column pumps’ seals are situated outside of the fluid meaning that this is not a problem. Secondly , when liquids are being pumping close to boiling point, there is a risk of cavitation caused by the NPSH available. However, due this design’s flooded suction, NPSH is not a concern.

• 緊湊，空間SAV設計 -在空間是一個問題的安裝中，垂直油底殼泵是一個理想的解決方案，而不是占用更多空間，它們隻是坐在需要轉移的容器內。

• Suitable for flammable liquids- Due to their electric motor being directly immersed into the fluid, submersible pumps are no longer deemed safe for use with potentially explosive fluids such as petrol and certain chemicals. Vertical line shaft pumps are an ideal alternative in these instances.

• Lower maintenance- 由於兩個原因，垂直浸沒泵比潛水泵更容易維持。首先，隨著整個組件浸入流體中，某些工業應用需要維持潛水泵，以特別限製，難以進入位置。其次，與它們的電機安裝在液體外，柱泵不易易於密封和電機故障。

• 長吸力要求 -在抽吸距離太長的應用中，如果泵位於流體的外部，則垂直浸沒的泵是不可避免的解決方案。

垂直軸泵的典型應用

• 清空井，油底殼，水庫和坦克
• 廢水泵送
• Oils, fuels and lubricant transfer
• 膽汁用水
• 一般水轉，供應和服務