Medium-specific-rotation-speed double-outlet volute pump

Abstract

The invention discloses a medium-specific-rotation-speed double-outlet volute pump. A circle of flow guiding plates are arranged in an annular opening in the inner side of a double-outlet volute. An impeller sleeves the annular opening in the inner side of the double-outlet volute. The bottom of the impeller is connected with one end of a water suction pipeline. A backward bending structure is adopted in blades in the impeller. The water inlet edges of the blades extend to the opening position in the bottom of the impeller. The front faces and the back faces of the blades are in smooth connection through hook faces different in curvature from top to bottom. According to the provided medium-specific-rotation-speed double-outlet volute pump, both-way water outflow is achieved through two water flow outlets, the flow discharging efficiency of the pump is improved, meanwhile, the speed component of water flow in the circumference direction of the volute is enhanced, the water flow condition at the pump outlet position is improved, hydraulic losses are reduced, and the volute pump has good hydraulic performance and high running efficiency.

Description

technical field [0001] The invention relates to a volute pump with medium specific speed and double outlets, which belongs to the technical field of volute pumps. Background technique [0002] At present, a pump is a machine that transports fluid or pressurizes the fluid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. The main flow parts of the volute pump are the impeller and the volute. The hydraulic structure of the volute has a crucial influence on the efficiency of the pump. [0003] At present, people's research on volute pumps is mainly focused on the area and shape of the section, the area of ​​the throat, and the placement angle of the tongue. The number of outlets of the volute has not been changed and the design and optimization have not been made to improve the pump efficiency. [0004] Therefore, how to overcome the deficiencies of the prior art has become one of the key proble...

AI Technical Summary

Problems solved by technology

[0003] At present, people's research on the volute pump is mainly focused on the area and shape of the section, the area of ​​the throat, and the placement angle of the tongue, etc., and the number of outlets of the volute has not been changed, and the design and optimization have not been made to improve the pump efficiency.

Images