Centrifugal suspended semi submersible vertical turbine pump with unequal head and assembly process

A centrifugal suspended semi submersible vertical turbine pump with unequal head and assembly process, including a suspended semi submersible vertical turbine pump body, wherein the suspended semi submersible vertical turbine pump body comprises a motor, a lifting pipe, and an impeller, wherein the impeller is respectively composed of a first blade, a second blade, and a third blade, and the slip coefficient of the first blade is greater than that of the second blade and greater than that of the third blade. The assembly process includes the following steps: (1) Connect the transmission shafts with couplings; (2) Fix the motor on the pump seat and connect the transmission shaft to the main shaft of the motor; (3) Connect the impeller to the impeller shaft and the pump casing to the lifting pipe; (4) Connect the horn mouth to the bottom of the pump casing; (5) Bury the assembled suspended semi submersible vertical turbine pump underground. The impeller of this suspended semi submersible vertical turbine pump adopts an unequal pitch design, resulting in blades with different flow lines, thereby increasing shaft power as much as possible without increasing the power and cost of the supporting motor.

Technical requirements: 1. A centrifugal suspended semi submersible vertical turbine pump with unequal head, comprising a suspended semi submersible vertical turbine pump body, wherein the suspended semi submersible vertical turbine pump body comprises a motor, a lifting pipe, and an impeller, characterized in that: the motor is located at the upper end of the lifting pipe, a pump seat is provided between the motor and the lifting pipe, and several transmission shafts are connected to the main shaft of the motor, which is located inside the lifting pipe, and a impeller shaft is provided below the transmission shaft. The impeller is located on the impeller shaft, and the first blade, second blade, and third blade are respectively on the impeller shaft. The slip coefficient of the first blade is greater than that of the second blade and greater than that of the third blade. The bottom of the lifting pipe is provided with two-stage pump shells, and the impeller The shaft is located inside the pump casing, and a conical sleeve is provided around the impeller inside the pump casing, There is a horn mouth below the pump casing.