Gearbox ventilation quantity monitoring and early warning system and method

By monitoring the wind speed of the gearbox cooling system in real time and triggering tiered early warnings, the problems of gearbox cooling system blockage and traditional monitoring lag have been solved, achieving efficient heat dissipation and intelligent maintenance of the equipment, and improving the reliability and operation and maintenance efficiency of wind turbine generators.

CN121431884APending Publication Date: 2026-01-30CRRC WIND POWER(SHANDONG) CO LTD
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Patent Information

Application Number
CN202511338396.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-18
Publication Date
2026-01-30

AI Technical Summary

Technical Problem

Gearbox cooling systems are prone to clogging by dust and oil, resulting in reduced ventilation, low cooling efficiency, and increased oil temperature. Traditional monitoring methods are outdated and lack intelligent early warning systems, which affects equipment reliability and maintenance efficiency.

Method used

A wind speed and flow sensor is used to monitor the wind speed of the gearbox cooling system in real time. The data is filtered and compared by the data processing module to trigger graded early warning signals. Combined with remote communication and local alarms, real-time monitoring and early warning of ventilation status can be achieved.

Benefits of technology

It improves the operational reliability of the gearbox, reduces the failure rate and maintenance costs, ensures that the equipment operates under efficient heat dissipation, and reduces unplanned downtime and power-limited operation.

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Abstract

The invention provides a gearbox ventilation quantity monitoring and early warning system and method, and belongs to the technical field of wind power generation. The system comprises a wind speed and flow sensing module, a data processing module and an early warning module; the wind speed and flow sensor module is installed on an air duct of the gearbox heat dissipation system and used for measuring the flow speed of air flowing through the gearbox heat dissipation system in real time and outputting the original wind speed. The data processing module is connected with the wind speed and flow sensing module, and is used for receiving the original wind speed signal and performing filtering and calculation processing to obtain a smooth wind speed value; the early warning module is connected with the data processing module and used for comparing and analyzing the smooth wind speed value and a preset wind speed threshold value, outputting a ventilation state judgment result and triggering an early warning signal of the corresponding level according to the ventilation state judgment result. The ventilation quantity of the gearbox is monitored in real time, the filter screen blockage problem is early warned in advance, the service life of key components such as a temperature control valve is prolonged, the maintenance strategy is optimized, non-planned shutdown is reduced, and the overall reliability of equipment is improved.
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