Dumbbell-shaped turbulent flow column structure for cooling interior of turbine blade

• Main Authors: WEI JINGTAO, YANG WEIHUA, XUAN WENTAO, LI CHENGYANG, GU HAO
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2021
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

The invention discloses a dumbbell-shaped turbulent flow column structure for cooling the interior of a turbine blade. The whole turbulent flow column structure is dumbbell-shaped, the turbulent flow column structure comprises an upper end body and a lower end body which are symmetrically arranged along the middle section of a turbulent flow column, the upper end body and the lower end body are cylindrical bodies with fusiform cross sections, and the side surfaces of the upper end body and the lower end body are vertical surfaces; and the four corners of the upper end body and the four corners of the lower end body are all round corners, the round corners, with the large radians, of the upper end body and the lower end body on the long diagonal lines face a cold air inlet, and the round corners, with the small radians, of the upper end body and the lower end body on the long diagonal lines face a cold air outlet. The flow loss can be effectively reduced, two chutes which are symmetrical about the middle secti