一种风机齿轮箱过滤系统

Abstract

本实用新型涉及风机齿轮箱过滤技术领域，公开了一种风机齿轮箱过滤系统，包括至少两组过滤组件；清洁组件，包括设置于第一过滤器和第二过滤器内的清洁件，清洁件适于清洁对应滤芯；压力检测组件，压力检测组件包括第一压力传感器和第二压力传感器；控制组件。本实用新型提供的风机齿轮箱过滤系统，控制组件可依据油压差值自动判断滤芯状态，在滤芯需清洁时切换至另一组过滤组件继续工作，同时启动当前组件的清洁件进行在线清洁，避免了传统停机更换滤芯导致的发电效率损失，减少了对固定周期维护和人工检查的依赖，降低了人为误差影响，延长了滤芯使用寿命，实现了过滤过程的智能化、连续化运行，提升了风机齿轮箱的运行可靠性与维护经济性。

Claims

1. A fan gearbox filtration system, characterized in that, include: At least two sets of filter components are provided, each filter component having an oil inlet (61) and an oil outlet (62). The oil inlet (61) and the oil outlet (62) are respectively connected to the fan gearbox. At least two sets of filter components are arranged in parallel. Each filter component includes a first filter (1) and a second filter (2) arranged in series. The first filter (1) is connected to the oil inlet (61), and the second filter (2) is connected to the oil outlet (62). The first filter (1) is provided with a first filter element (11), and the second filter (2) is provided with a second filter element (21). The first filter (1) is adapted to perform coarse filtration on the oil input from the oil inlet (61), and the second filter (2) is adapted to perform fine filtration on the oil after coarse filtration and to transport the filtered oil to the oil outlet (62). A cleaning assembly includes a cleaning element disposed within the first filter (1) and the second filter (2), the cleaning element being adapted to clean the corresponding filter element; The pressure detection component includes a first pressure sensor (31) and a second pressure sensor (32). The first pressure sensor (31) is disposed in the pipeline at the oil inlet (61) and is adapted to detect the oil pressure at the oil inlet (61) and output a first oil pressure value. The second pressure sensor (32) is disposed in the pipeline at the oil outlet (62) and is adapted to detect the oil pressure at the oil outlet (62) and output a second oil pressure value. The control component is electrically connected to the filter component, the pressure detection component, and the cleaning component, respectively. The control component is adapted to form an oil difference value based on the difference between the first oil pressure value and the second oil pressure value. When the oil difference value is greater than a preset pressure difference threshold, the current filter component stops filtering, the cleaning component in the filter component is started to clean, and the filter component is switched to another filter component for filtering.

2. The filter system for a wind turbine gearbox as claimed in claim 1, wherein, The control component includes: An oil inlet solenoid valve (33) is installed in the pipeline between the fan gearbox and the oil inlet (61). The oil inlet solenoid valve (33) is adapted to control the fan gearbox to deliver oil to the filter assembly. The controller (34) is electrically connected to the filter assembly, the cleaning assembly, the pressure detection assembly and the oil inlet solenoid valve (33) respectively. When the oil difference value is greater than the preset differential pressure threshold, the controller (34) is adapted to generate an oil circuit switching command and a cleaning trigger command.

3. The filter system for a wind turbine gearbox as defined in claim 2, wherein, The control component also includes: An oil outlet solenoid valve (35) is installed in the pipeline between the oil outlet (62) and the fan gearbox. The oil outlet solenoid valve (35) is adapted to control the filter assembly to deliver oil to the fan gearbox.

4. The fan gear box filtration system of claim 3, wherein, The first filter (1) and the second filter (2) are provided with drain ports, and the cleaning assembly further includes: The drain oil path (41) is connected to the drain ports of the first filter (1) and the second filter (2) respectively; A sludge collection tank (42) is connected to the outlet end of the sewage discharge oil circuit (41) and is used to collect the removed impurities; A sewage pump (43) is installed on the sewage oil passage (41). The sewage pump (43) is adapted to extract impurities from the first filter (1) and the second filter (2) and transport them to the sludge collection tank (42). A drain valve (44) is provided between the drain oil passage (41) and the drain pump (43), and the drain port is adapted to open when the cleaning component is driven.

5. The fan gear box filtration system of claim 4, wherein, The cleaning component also includes: A vacuum negative pressure safety valve (45) is installed in the pipeline between the oil outlet (62) and the fan gearbox. The vacuum negative pressure safety valve (45) is adapted to maintain the pressure balance inside the filter assembly when the sewage pump (43) is pumping. A breathing filter (46) is disposed on the vacuum negative pressure safety valve, and the breathing filter (46) is adapted to filter impurities in the air when the vacuum negative pressure safety valve is working; A flow sensor (47) is installed in the drain oil path (41). The flow sensor (47) is adapted to detect and assist the controller (34) in determining whether to stop the suction and cleaning operation.

6. The fan gear box filtration system of any one of claims 1-5, wherein, The cleaning component includes at least two sets of rotating brush cleaning components (51). One set of rotating brush cleaning components (51) includes at least one of the rotating brush cleaning components (51). One set of rotating brush cleaning components (51) is arranged in the first filter (1) parallel to the axial direction of the first filter element (11). The other set of rotating brush cleaning components (51) is arranged in the second filter (2) parallel to the axial direction of the second filter element (21).

7. The fan gear box filtration system of claim 6, wherein, The cleaning component also includes: A cleaning drive (52) is provided, wherein the drive shaft of the cleaning drive (52) is coaxially arranged with the cleaning component, and the cleaning drive (52) is adapted to drive the cleaning component to work.

8. The fan gear box filtration system of any one of claims 1-5, wherein, The first filter element (11) has a filtration accuracy of 50 μm, and the second filter element (21) has a filtration accuracy of 10 μm.

9. The fan gearbox filtration system according to any one of claims 1-5, characterized in that, The first filter (1) and the second filter (2) further include: The filter housing contains the first filter element (11) and the second filter element (21).

10. The fan gear box filtration system of any one of claims 1-5, wherein, The number of filter components is two sets, and the two sets of filter components are arranged side by side with intervals. The oil inlet (61) of the two sets of filter components is connected to the fan gearbox through the same oil inlet circuit. The oil outlet (62) of the two sets of filter components is merged into the same oil outlet circuit through a connector and connected to the fan gearbox.

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