| abstract |
The invention is a pump body structure of a vertical pump, which includes a pump casing, an upper shaft seal, a spindle and a lower shaft seal assembly; the pump casing is arranged at the installation opening of a cooling water tank, an upper ring flange and a lower ring The flange surrounds and protrudes to form the inner wall surface of the pump casing. The upper ring flange and the lower ring flange are spaced up and down to form a discharge space; a discharge hole connects the discharge space and the internal space of the cooling water tank; the upper ring flange and The flanges of the lower ring respectively have an upper through hole and a lower through hole. The height of the upper through hole corresponds to the height of the installation opening. The mandrel penetrates through the two through holes, and the two shaft seals are respectively provided in the two through holes and Between the mandrels; in this way, even if the shaft seal with the lower hole fails, the leaked fluid will flow back to the cooling water tank from the leakage space, so as to improve the problem that the shaft seal leakage will pollute the work site. |