一种集成换热整流功能的燃气摇摆软管
By designing a gas swing hose with integrated heat exchange and rectification functions, the problems of flow-induced vibration and structural damage during the swinging process of the second-stage liquid rocket engine were solved, thereby improving the stability of the flow field and the heat exchange efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING AEROSPACE PROPULSION INST
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-17
AI Technical Summary
The gas swing hose of a second-stage liquid rocket engine is prone to flow-induced vibration and structural damage during large-angle swinging, and existing technologies have not effectively integrated heat exchange and flow field correction functions.
A gas swing hose with integrated heat exchange and rectification functions was designed, including an inlet flange, an outlet flange, a bellows assembly, an intermediate straight pipe, gas guide vanes, and heat exchange tubes. The gas guide vanes adjust the swirling flow field to a parallel flow field, and a spiral heat exchange tube is set in the intermediate straight pipe to increase the heat exchange area. A reinforcing ring is used to enhance flexibility and rigidity.
This technology has improved the stability and reliability of the gas swing hose during large-angle swinging, enhanced the flow field rectification effect and heat exchange efficiency, and reduced flow-induced vibration and structural damage.
Smart Images
Figure CN121139211B_ABST