What should be paid attention to in the installation of centrifugal sand pump

What should be paid attention to in the installation of centrifugal sand pump?

Centrifugal sand pump is a special type of centrifugal pump. It is the power source of desander, desilter and slurry mixing device in drilling fluid solids control system equipment. The sand pump needs to pay attention to the following points during the installation process
1). Pump installation

The installation position of the pump should be as close as possible to the pumping source to shorten the length of the suction section and reduce the suction loss. The pump installation foundation should be level, firm and reliable to avoid vibration.
2). Coupling or belt installation

The longer service life of the direct-coupled pump unit depends on the alignment of the elastic coupling. The coupling of our company's sand pump unit has been calibrated when it leaves the factory, and it needs to be recalibrated when repairing or changing the pump head. A steel ruler can be used to lean the coupling up, down, left, and right. Use the naked eye to observe that the ruler and the outer circle of the coupling should be in close contact with each other and opaque, that is, the outer circle of the coupling should be in a straight line to ensure that the motor shaft and pump Coaxiality of the shaft. The belt of the belt drive pump unit is properly tensioned. Too tight or too loose is not appropriate. The inspection method is: when the belt spans the midpoint perpendicular to the belt and applies 100N force, the vertical deflection of the belt is 10mm, and the axis of each pulley is required to Parallel to each other, the V-groove symmetry planes corresponding to the pulleys should coincide with the error no more than 20'. After the coupling or belt is installed, the protective cover must be put on before operation to prevent safety accidents.

3). Inlet pipeline installation
A. The suction pipeline should match the pump inlet.
B. It is not allowed to install a throttle valve in the suction pipeline, but a normally open valve can be installed to reduce the turbulence of the liquid flow. The valve can only be closed when the pump is disassembled for maintenance.
C. In order to avoid the formation of bubbles in the suction pipeline, the pumping source and the pump should gradually transition from high to low. If the user needs the pump to be used with suction, please use a vacuum pump or a bottom valve to divert water.
D. The pipeline at the inlet of the pump must be straight and its length shall be at least twice the diameter of the suction pipeline.
E. When temporarily using a hose as a suction pipe, it must be ensured that the hose is not compressed. This is because the pressure in the suction pipe is generally lower than the atmospheric pressure. Under the action of the atmospheric pressure, the hose is compressed, resulting in a decrease in flow or even flow cutt off.

4).Outlet pipeline
A. In order to facilitate the maintenance of the pump, a normally open valve should be installed in the outlet pipeline.
B. All pipelines (including the inlet pipeline) must have their own support, and the pump must never bear the weight of the pipeline.
C. When the working conditions are unknown or unstable, a throttle valve must be installed in the outlet pipeline to ensure that the pump runs at the design point.
D. When the centrifugal sand pump outlet is connected to the pressure equipment, a check valve must be installed between the throttle valve and the pump outlet to prevent liquid backflow, otherwise, the backflow liquid will cause the pump to be damaged by "water hammer"

Xi'an HL Petroleum Equipment Co., Ltd. specializes in the production of various solids control equipment, Shale Shaker, mud cleaner, desander, desilter, degasser, Decanter Centrifuge, mud agitator,shear pump, spray pump, mud hopper, etc. and all the spare part can be offered separately, If you have purchase requirements, please feel free to send inquiry to us: sales@hlsolidscontrol.com