Problems with vertical barrel pumps
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What are the advantages and disadvantages of vertical tube bag pump? Please give me some advice.
It can transport various clean, contaminated, low or high temperature, chemically neutral or corrosive liquids. Mainly used in refineries, petrochemical industries, cryogenic engineering, pipeline pressure regulation or offshore platforms, energy industry condensate extraction, and liquefied gas engineering. The vertical barrel pump has a multi-stage, radially split structure. The impeller has a single-suction structure, segmented guide vanes, and a single-stage casing. In order to improve the anti-cavitation performance of the pump (the main advantage), the first-stage impeller adopts a suction-type impeller. The axial force is balanced by a balance plate device, and the residual axial force is borne by paired angular contact ball bearings. shortcoming: High price and troublesome to repair
In petrochemical plants, it is generally used to transport liquid hydrocarbons. The installation datum is generally flush with the ground, and the tube bag is below the ground. Relatively improve the anti-cavitation ability of the equipment and increase the NPSH value. There is generally a maintenance hoisting capacity above the pump. ； This type of pump has good balance. A balance plate is generally used to balance the axial force. Compared with horizontal pumps, the number of impeller stages is more. I have seen up to 20 stages. The more stages, the smaller the diameter of the impeller. This post was last edited by Orion on 2009-4-9 20:00 ]
Yes, I finally have some confidence in the barrel pump.
advantage: It has many shortcomings such as wide range of performance, uniform flow, simple structure, reliable transportation, relatively low sensitivity to faults and easy maintenance.: Sensitive to cavitation, which makes it very difficult to transport high-temperature media or under conditions with low inlet pressure.