Submersible pump mechanical seal of the selected method Pumps with mechanical seal

Submersible pump mechanical seal of the selected method Pumps with mechanical seal are usually selected by the structure of the mechanical seal way, because of the mechanical seal is usually by moving a static end face seal ring, for sealing ring, a spring and driving part. Dynamic and static ring end face sealing effect, during which ring axial movement of the submersible pump mechanical seal up the compensation effect. For sealing ring are usually held on the shaft and installed on the pump cover, and touch the pump not happen relatively scroll pump mechanical seal and sealing effect. Spring up effect is when the mechanical seal by medium pressure or plus system or lessen the pressure of plus compensation loop. Driving part is mainly the mechanical seal and pump body. Second is not the same as the determination of mechanical seal selection for mechanical seal type is suitable for different pumps with mechanical seal sample assignments require, and therefore need to reference condition request according to the selection of parameters of mechanical seal, type, structure, specification and test experience to select the right intention of mechanical seal. Lower part of the main mechanical seal planning, in the interior of the submersible pump dynamic seal system, the lower mechanical seal is located behind the impeller, pump operation it will be under pressure from sewage medium impact and the influence of the shake, by chemical sewage medium corrosion and erosion conflict end face hard particles in the medium, the influence of impeller of high speed rolling at the same time bring the influence of the centrifugal force, to bring the influence of conflict hot line speed, the inductive factors will cause the lower mechanical seal oscillation occurred during operation, many problems such as corrosion, wear and cracking. Therefore, careful planning, strict processing and accurate lower mechanical seal device is to ensure that the key to large-scale submersible pump mechanical seal system for a long time work, it also reflected from normal use and repair process.