Vertical vortex shell type mixed flow pump:
Vertical pump can reduce the area, save investment, for large units, the use of vertical structure can improve the situation, simplify the structure of the pump. When the vertical vortex shell type mixed flow pump is used in large scale units, it has good cavitation performance and efficiency. Compared with the guide vane mixed flow pump, the plant height is greatly reduced, compared with the axial flow pump, close point power is small, easy to match, convenient maintenance. It is considered that the use of the vortex shell type non economic argument is outdated, and the diameter of the 4.6 meter mixed flow pump is still using the vertical vortex shell pump. Vertical volute mixed flow pump used for farmland irrigation, the drainage, lift more than 4 ~ 12 meters. Structure, large vertical vortex shell type mixed flow pump of the pump body can be cast iron or steel castings, also available steel reinforced concrete structure (can be used in the site with the template construction). In order to improve the force condition of the pump body, a seat ring is arranged between the impeller and the pump body, and a guide vane which is consistent with the spiral angle is arranged on the seat ring. Axial force is driven by the motor thrust head (with the exception of indirect drive through the transmission mechanism), and the radial force is driven by the rubber bearing or the oil bearing. The suction part of the pump is usually used for the elbow shaped tube or the plane vortex shell, and the water outlet part is a siphon pipe or a door. The seal part with soft filler seal, carbon seal or mechanical seal, packing seal water for external cleaning water. When the external water source is tap water, the water pressure indicating device should be set up in the proper place. The pressure is not enough or unstable situation, should set up a water tower. With the water tower, also need the indicating device, to ensure that the sealing and cooling lubrication pump.
