This utility model relates to a single-stage pipeline pump with a dynamic seal and an integrated packing seal. The single-stage pipeline pump includes: a foundation plate, a pump body, an
impeller, a pump cover, a secondary
impeller dynamic seal, a motor, a water-
retaining ring, an integrated self-adjusting packing seal
system, and an
impeller fixing component. The entire single-stage pipeline pump is fixed on the foundation plate. The water-
retaining ring is located on the pump shaft and above the integrated self-adjusting packing seal
system. Both the secondary impeller dynamic seal and the integrated self-adjusting packing seal
system are installed on the pump shaft, with the secondary impeller dynamic seal located between the integrated self-adjusting packing seal system and the impeller. This utility model uses a combination of a secondary impeller dynamic seal and an integrated self-adjusting packing seal system, solving the problems of existing mechanical seals, especially addressing the issues of high cost, complex external systems, high investment costs, and high maintenance costs associated with mechanical seals in conditions involving
solid particulate impurities and corrosive environments.