变截面形状的柱肋、透平叶片和燃气轮机
By employing a variable cross-section column rib structure within the turbine blade cooling channel, combined with rhomboid, airfoil, or elliptical column ribs, the problem of insufficient cooling effect of traditional cylindrical column ribs is solved, achieving more efficient cooling and lower pressure loss, thus improving the performance of the gas turbine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNITED GAS TURBINE TECH CO LTD
- Filing Date
- 2023-11-07
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional cylindrical rib structures have limited cooling effects and cannot meet the cooling requirements of high-temperature turbine blades. Furthermore, they suffer from significant pressure loss due to airflow turbulence.
By adopting a column rib structure with a variable cross-section shape, and combining the advantages of rhomboid, airfoil or elliptical column ribs, the heat exchange capacity near the side wall of the cooling channel is enhanced and the pressure loss in the mainstream area is reduced. By setting connecting column rib sections, first rhomboid and second rhomboid column rib sections in the cooling channel, a symmetrical or symmetrical airfoil or elliptical structure is formed.
It improved cooling efficiency by 20%, reduced pressure loss in the cooling channels by 25%, and achieved efficient cooling and improved structural strength.
Smart Images
Figure CN117536693B_ABST