Sand pump manufacturer: Precautions for using quartz sand pumps?

Classification of hydraulic losses of quartz sand pumps

The hydraulic losses of quartz sand pumps can be divided into two types: friction losses and collision and vortex losses

When the slurry flows inside the pump, due to the varying smoothness of the flow channels, different degrees of resistance are generated, resulting in frictional losses. The frictional losses mainly depend on the length, size, shape, surface roughness of the flow channels, as well as the flow rate and characteristics of the liquid. Under normal conditions, the efficiency of the quartz sand pump will be determined by the magnitude of the hydraulic losses. Frictional losses in hydraulic losses are inevitable. The slurry has viscous characteristics. When a unit volume of water and the surface of an object (flow-through component) move relatively, the energy required for the quartz sand pump manufacturer to maintain its movement is related to its viscosity, contact area, surface roughness, and the length of the journey, and is proportional to the cube of the water flow velocity

2. When the slurry enters and exits the impeller, collisions and vortices will occur, resulting in energy losses from collisions and vortices. At the rated flow rate, such losses in the impeller are almost zero. When the flow rate is greater or less than the rated rate, this kind of loss begins to occur and the greater the difference from the rated rate, the greater the loss, increasing with the square of the flow rate. When the flow rate is less than the rated rate, the slurry impacts the blades at an Angle greater than the installation Angle of the impeller, squeezing the fluid onto the working surface of the blades and forming a vortex area on the back. When the flow rate is greater than the rated rate, The Angle at which the slurry meets the blade is less than the installation Angle of the blade. As a result, the fluid is pressed towards the back of the blade, forming a closed vortex on the working surface.

How to reduce the hydraulic loss of quartz sand pumps?

The hydraulic loss of the quartz sand pump mainly occurs in the impeller and other flow-through components of the quartz sand pump. The cross-sectional changes of the slurry should be smooth, the velocity should be reasonable, and the appropriate impeller, guide vane profile and inlet and outlet installation angles should be selected to reduce the existence of sharp corners, dead corners and dead water areas in the quartz sand pump. Burrs in the flow channel should be removed as much as possible to keep the inner wall smooth. To reduce the additional frictional hydraulic loss, improve the casting accuracy, and enhance the smoothness of the flow channel surface of the impeller cover plate, the inner wall of the pump casing, etc., the water flow frictional loss can be reduced.