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fuyangby@126.com
86 15188770013
Head aspect
Single stage slurry pump: Typically, a single-stage slurry pump only has one impeller, and the liquid obtains energy through this impeller, resulting in a relatively low head. The horizontal slurry pump (single-stage mud pump) in the sand washing plant belongs to the single-stage slurry pump, which is suitable for working conditions with high flow and low pressure feeding, and is not very suitable for situations that require high head.
Multi stage slurry pump: A multi-stage slurry pump is composed of multiple impellers connected in series, and the liquid passes through multiple impellers in sequence. Each impeller increases a part of the energy, so the multi-stage slurry pump can obtain a higher head and is suitable for working conditions that require the liquid to be transported to higher positions or overcome greater resistance. For example, in some mining deep well drainage scenarios, multi-stage slurry pumps can leverage their high lift advantages.
Traffic aspect
Single stage slurry pump: Due to its relatively simple structure, the single-stage slurry pump has a short flow path for the liquid inside the pump, so it can achieve a large flow rate in certain situations. For example, the horizontal slurry pump (single-stage mud pump) in the sand washing field is suitable for high flow and low-pressure feeding conditions.
Multi stage slurry pump: Although multiple impellers in series in a multi-stage slurry pump increase the energy of the liquid, it also increases the resistance to liquid flow to a certain extent. Therefore, under the same conditions, the flow rate of a multi-stage slurry pump is generally smaller than that of a single-stage slurry pump. However, multi-stage slurry pumps can meet appropriate flow requirements while ensuring a certain head through reasonable design and selection.
Efficiency aspect
Single stage slurry pump: The structure of a single-stage slurry pump is simple, and the losses inside the pump are relatively small. When operating near its designed operating point, the efficiency is usually high. But if it deviates from the design conditions, the efficiency may decrease significantly.
Multi stage slurry pump: Due to the large number of impellers, the flow situation inside the multi-stage slurry pump is relatively complex, resulting in certain inter stage losses, so its overall efficiency may be slightly lower than that of a single-stage slurry pump. However, with the development of technology, the efficiency of multi-stage slurry pumps is constantly improving.
In terms of anti cavitation ability
Single stage slurry pump: The number of impellers in a single-stage slurry pump is small, and the pressure change of the liquid inside the pump is relatively small, making cavitation relatively easy to control. But in some special working conditions, such as low inlet pressure and excessive flow, cavitation problems may also occur.
Multi stage slurry pump: Due to the flow of liquid in multiple impellers, the pressure of the multi-stage slurry pump varies greatly, especially at the first stage impeller where the liquid pressure is lower, making it more prone to cavitation. Therefore, multi-stage slurry pumps usually require special measures to improve their resistance to cavitation, such as using appropriate impeller materials, optimizing impeller inlet design, etc.
In terms of operational stability
Single stage slurry pump: Single stage slurry pump has a simple structure, relatively few rotor components, relatively low vibration and noise during operation, and good operational stability. And during maintenance, there is no need to disassemble too many components, making maintenance relatively convenient.
Multi stage slurry pump: Due to the large number of impellers and the weight and length of rotor components, multi-stage slurry pumps are prone to vibration during operation, requiring high installation and foundation requirements for the pump. At the same time, the issue of balancing axial force in multi-stage slurry pumps is also quite complex. If the balance is not good, it will affect the stability and service life of the pump.
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