Door assembly, tower and wind generating set
By designing a door assembly for wind turbine units, adjusting the airflow frequency to change the vortex vibration frequency, the problem of tower vortex vibration is solved and the unit reliability and safety is improved.
CN119711908APending Publication Date: 2025-03-28JIANGSU GOLDWIND SCI & TECH CO LTD
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Patent Information
- Application Number
- CN202311280498.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-28
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
The towers in wind turbines are prone to vortex vibration, resulting in the risk of irreparable mechanical and cable components, affecting the life cycle of the unit.
Method used
A door assembly is designed, including a door body, a air guide plate, a support platform and a first movable member, and the excitation frequency of the vortex is changed by adjusting the frequency of the external air flow, ensuring that it is inconsistent with the self-vibration frequency of the tower, thereby suppressing the vortex vibration.
Benefits of technology
It effectively suppresses the vortex vibration of the tower, improves the operating reliability and safety of the wind turbine, and extends the life cycle of the unit.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to a door assembly, a tower and a wind generating set, the door assembly comprises a door body, an air guide plate, a supporting platform and a first movable part, a ventilation opening communicating with a hollow cavity is formed in the door body, the air guide plate is arranged at the ventilation opening, the air guide plate is rotatably connected to the door body, and the rotation axis of the air guide plate and the rotation axis of the door body extend in the first direction; the supporting platform is arranged in the hollow cavity, the first movable part is arranged on the supporting platform and connected with the air guide plate, and the first movable part has the moving freedom degree relative to the supporting platform in the second direction intersecting with the first direction so as to drive the air guide plate to rotate relative to the door body and adjust the frequency of external airflow entering the hollow cavity from the ventilation opening. According to the door assembly, vortex-induced vibration of the tower can be restrained, and the operation reliability of the wind generating set is improved.
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