Mechanical seal of the hottest submerged pump

Mechanical seal of submerged pump

mechanical seal of submerged pump is also called end face seal. It has a normal production, which always hopes to achieve the highest speed and high production as far as possible. For the end face perpendicular to the rotation axis, the end face of submerged pump is in flow. 5. Balancing machine (including on-site balancing instrument); Under the action of body pressure and external elastic force of compensation machinery, the submerged pump relies on the cooperation of auxiliary seal to keep fit with the other end and slide relatively, so as to prevent fluid leakage

mechanical seal of submerged pump is a common cause of leakage of submerged pump. Mechanical seal itself is a precision component with high requirements, which has high requirements for design, machining and assembly quality. When using the mechanical seal of submerged pump, various factors of using the mechanical seal should be analyzed to make the mechanical seal suitable for the technical requirements and use medium requirements of various submerged pumps and have sufficient lubrication conditions, so as to ensure the long-term and reliable operation of the seal

there are still unreasonable places in the design, selection and installation of mechanical seals of submerged pumps

(1) the compression amount of the spring of the submerged pump must be carried out according to the regulations, and it is not allowed to be too large or too small. The error is 2mm. If the compression amount is too large, the specific pressure of the end face will increase, and the friction heat will be too much, resulting in the thermal deformation of the sealing surface of the submerged pump and accelerating the wear of the end face. If the compression amount is too small, and the specific pressure of the end face of the dynamic and static ring is insufficient, it cannot be sealed

(2) the end face of the shaft (or shaft sleeve) for installing the dynamic ring seal ring of the submerged pump and the end face of the sealing gland (or shell) for installing the static ring seal ring should be chamfered and polished with such a large structure to avoid damaging the dynamic and static ring seal ring during assembly

the mechanical seal of submerged pump itself is a kind of precision component with high requirements, which has high requirements for design, machining and assembly quality. When using mechanical seals, various factors of using mechanical seals for submerged pumps should be analyzed, so that the mechanical seals for submerged pumps can meet the technical requirements and use medium requirements of various submerged pumps and have sufficient lubrication conditions, so as to ensure the long-term and reliable operation of the seals for submerged pumps