一种液力涡轮与泵共用混合蜗壳
By using a shared mixing volute design for the hydraulic turbine and pump, and optimizing the intersection angle and outlet angle, the problem of medium mixing and flow loss when the hydraulic turbine and pump share an outlet is solved, thereby improving the efficiency and structural compactness of the turbopump system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING AEROSPACE PROPULSION INST
- Filing Date
- 2023-11-24
- Publication Date
- 2026-07-17
AI Technical Summary
In a hydraulic turbine-driven turbopump system, when the hydraulic turbine and the pump share the same outlet, the flow loss due to medium mixing is large, which affects the work capacity of both the turbine and the pump.
A hybrid volute design for a hydraulic turbine and pump is adopted, including a first volute and a second volute, which are coaxial and rotate in the same direction. The base circle of the second volute is smaller than that of the first volute. The second volute is surrounded in the helical space formed by the first volute. The outlet diffuser sections of the first and second volutes intersect. By optimizing parameters such as the intersection angle, the outlet section angle, and the medium flow velocity, flow loss is reduced.
It effectively reduces flow losses due to media mixing, improves the efficiency of the entire system, reduces flow impact, simplifies the structure, and improves space utilization.
Smart Images
Figure CN117627959B_ABST