Vertical suspended semi submersible vertical turbine pump water blocking device

The vertical suspended semi submersible vertical turbine pump is equipped with a water blocking device, which can effectively solve the problem of lubricating oil contamination caused by leakage from the packing box into the bearing box. The vertical suspended semi submersible vertical turbine pump water blocking device disclosed in this technical method includes a pump shaft, on which a conical shell shaped water blocking ring is sleeved. The large open end of the water blocking ring faces the packing box set at the end of the pump shaft shaft. Due to the installation of a conical shell shaped water blocking ring on the pump shaft, the water blocking area can be increased in the circumferential direction of the pump shaft, enhancing the water blocking effect.

Technical requirements: 1. Water blocking device for vertical suspended semi submersible vertical turbine pump, comprising a pump shaft (1), characterized in that a conical shell shaped water blocking ring (2) is sleeved on the pump shaft (1), and the large open end of the water blocking ring (2) faces the packing box (3) set at the shaft end of the pump shaft (1).