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Characteristics of WN dredging pump
Datetime2019-09-12 Browsing Times456

  I. Good ship performance of integral structure

  1. Simple and reliable structure

  The 200wn-500wn dredging pump adopts single pump shell and single stage single suction cantilever horizontal structure as a whole. According to the transmission mode, two typical structures can be provided, i.e. self-contained bracket and pump box. The self-contained bracket lubrication mode is grease lubrication or thin oil lubrication.

  600wn-1000wn dredging pump adopts double pump shell and single stage single suction cantilever horizontal structure as a whole. The self-contained bracket lubrication mode is forced thin oil lubrication. The safety and reliability design of the double pump case enables the sheath to be used until it is nearly worn out, and when the sheath breaks down, the pump chamber will not enter the water.

  WNQ type underwater pump adopts single pump shell and single stage single suction cantilever structure as a whole. The self-contained bracket lubrication mode is oil lubrication or water lubrication.

  2. Easy to disassemble and repair.

  WN (Q) dredging pump adopts the front disassembly structure, which is easy to disassemble and assemble for maintenance. At the same time, according to the structural characteristics of each component, special disassembly tools are equipped for disassembly and assembly.

  The standard four-head trapezoidal thread connection is adopted between the impeller and the shaft, which not only transmits strong torque, but also facilitates disassembly and assembly. At the same time, there is an impeller disassembly ring at the Bush to facilitate the disassembly of the impeller.

 、. Good dredging performance

  1. Good cavitation performance

  WN type mud pump has good cavitation performance, which can ensure that the suction capacity of the mud pump is strong, at the same time, it can achieve greater dredging and higher suction concentration.

  2. Strong overcurrent performance and wide applicability

  WN mud pump impeller runner width is large, mud pump's own good passing capacity is a good guarantee for dredger performance range, can continuously pumping gravel or high plastic clay without blocking.

  3. steep drop in performance curve

  WN mud pump has a steep drop in flow and head curve, which makes the mud pump more applicable to the change of displacement.

  4. Various allocations of pump performance can be realized.

  WN mud pump can change the pump head at the same flow rate by changing the speed of impeller or the diameter of impeller.

 、. Good wear resistance and long service life of overcurrent parts

  The impeller, sheath and front and rear guard plates (wear-resistant bushing) of the flow passage parts of WN mud pump are made of strong wear-resistant alloy cast iron with hardness not less than 58 HRC. They have strong impact resistance and high abrasion resistance at the same time. The newly developed new material of WN mud pump has a hardness of up to 70 HRC.

  In the process of product design, the service life matching of parts and components is fully considered. The replacement cycle of wear-resistant parts is basically the same, which reduces the cost of maintenance and replacement.

 、. Low hydraulic loss, high efficiency and low energy consumption

  Because of the advanced hydraulic model, the efficiency of mud pump is high. The efficiency level of MN mud pump is 2-3 percentage points higher than that of imported mud pump. In this way, lower energy consumption can be obtained at the same output.

  V. Reliable Seal, No Leakage

  The shaft seal of 200WN-500WN dredging pump adopts mechanical seal, packing seal or composite seal with packing. The screw sleeve L-shaped rubber sealing device is used for the shaft seal of the dredging pump. The sealing device consists of three L-shaped sealing rings and one shaft sleeve with special threads.

  The shaft seal of 600WN-1000WN dredging pump adopts spiral sleeve L-shaped rubber sealing device, which consists of three L-shaped sealing rings and one shaft sleeve with special threads.


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