Leakage monitoring technology and application for wind turbine gearbox lubrication systems
风电机组齿轮箱润滑系统泄漏监测技术与应用

摘要

本文先阐述风电机组齿轮箱润滑系统构成，以某风电场双馈 SL1500 风电机组为例主要介绍系统润滑保护与散热控温原理及功能，并指出密封胶圈损伤、油管开裂、散热器散热翅片油污灰尘堵塞、油位监测滞后等问题，以及夏季偏航接油槽雨水与油污堆积溢油风险与设备配置技术特点。随后从泄漏报警与预防控制（安装集油槽、传感器等）、针对性治理（定制流程、更换材料等）、长效防护与结构优化（升级材料、改进结构等）、运维管理与污染防控（建立三级巡检机制等）四方面详述措施，保障机组安全稳定运行、避免环境污染及财产损失提供支撑。

Abstract

This paper first explains the structure of wind turbine gearbox lubrication systems. Taking a doubly-fed SL1500 wind turbine at a specific wind farm as an example, it elaborates on the principles and functions of system lubrication protection and thermal control. The study identifies issues such as seal ring damage, oil pipe cracks, radiator fin clogging from oil stains and dust, delayed oil level monitoring, as well as summer risks of oil spillage from deflection oil collection troughs due to rainwater and oil contamination accumulation, along with technical features of equipment configuration. Subsequently, it details measures from four aspects: leakage alarm and prevention (installation of oil collection troughs, sensors, etc.), targeted solutions (customized processes, material replacements, etc.), long-term protection and structural optimization (material upgrades, structural improvements, etc.), and operation management with pollution control (establishing a three-level inspection mechanism). These comprehensive measures aim to ensure safe and stable turbine operation while preventing environmental pollution and property damage.