叶片及燃气轮机
By installing baffles and grid guide plates arranged at an angle within the cooling channel of the gas turbine blades, an independent sub-channel is formed, which solves the problem of reduced internal heat exchange capacity caused by flow separation and improves the cooling effect.
CN117948189BActive Publication Date: 2026-07-17CHINA UNITED GAS TURBINE TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNITED GAS TURBINE TECH CO LTD
- Filing Date
- 2024-02-27
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing gas turbine blade cooling channels suffer from reduced internal heat exchange capacity and poor cooling effect due to flow separation.
Method used
A first baffle and a second baffle are installed in the blade cooling channel to form multiple independent sub-channels. The baffles are arranged at an angle to reduce flow separation. Combined with the grid guide plate and the second cooling channel, the airflow stability and heat exchange capacity are improved.
Benefits of technology
By reducing flow separation, the internal heat exchange capacity and cooling effect of the cooling channel are improved, thereby enhancing the cooling performance of the blades.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117948189B_ABST
Abstract
本发明属于燃气轮机技术领域，具体公开了一种叶片及燃气轮机。叶片包括叶片本体、第一隔板和第二隔板，叶片本体内设置有第一冷却通道，第一冷却通道具有进气段和出气段；第一隔板沿第一方向延伸，且第一隔板一端位于进气段，第一隔板的另一端位于出气段；第二隔板沿第二方向延伸，且第二隔板一端位于进气段，第二隔板的另一端位于出气段，第一隔板和第二隔板呈夹角设置以将第一冷却流道分隔成多个彼此独立地子流道，子流道的进口位于进气段，子流道的出口位于出气段，第一方向和第二方向正交布置。本发明的叶片通过将第一冷却通道分为多股子流道，可以减小弯段的死区范围，减少流动分离，从而可以提高第一冷却通道的内换热能力，提高冷却效果。
Need to check novelty before this filing date? Find Prior Art