Oil detection device for gearbox of wind driven generator

Abstract

The utility model discloses an oil detection device for a gearbox of a wind driven generator. The oil detection device comprises a main oil pipe, an oil inlet tee joint, an oil outlet tee joint, a double-end oil taking pipe, a double-end oil return pipe, an oil sensor, an oil inlet valve and an oil outlet valve, two ends of the main oil pipe are respectively communicated with the oil inlet tee joint and the oil outlet tee joint; the two ends of the oil inlet valve are communicated with the oil inlet tee joint and one end of the double-end oil taking pipe respectively, and the other end of the double-end oil taking pipe is communicated with the oil liquid sensor. The two ends of the oil outlet valve are communicated with one end of the oil outlet tee joint and one end of the double-end oil outlet pipe respectively, and the other end of the double-end oil outlet pipe is communicated with the oil liquid sensor. On the premise of not changing the original structure of the fan, the auxiliary oil pipe can be installed in a fan lubricating oil way pipeline to be connected and form an auxiliary oil pipe channel, and an auxiliary oil pipe loop is formed to detect oil.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil liquid detection technical field especially relates to a wind driven generator gear box oil liquid detection device. BACKGROUND

[0002] Now clean energy develops rapidly, and wind power is one of clean energy, and in recent years, wind power is continuously expanding in clean energy proportion scale, however, due to the special position of wind power, wind field is generally located in remote mountainous areas or offshore, and the environment is relatively poor, which causes difficulty in maintenance and repair work of unit, thereby increasing the operation and maintenance cost of unit, for the unit with working life of 20-30 years, the operation and maintenance cost accounts for about 10%-15% of wind field income, for offshore wind field, the cost for wind turbine operation and maintenance is as high as 20%-25% of wind field income, and high operation and maintenance cost increases the operation cost of wind field and reduces the economic benefit of wind power, therefore, from the perspective of reducing the operation risk of wind turbine or reducing operation cost, it is necessary to develop and improve wind turbine unit state monitoring and fault diagnosis technology, and improve the safe operation and economic benefit of wind turbine.

[0003] Gear box as the energy transmission part of wind turbine is obviously affected by environmental factors during operation, and due to the special position, abnormal wear and damage are prone to occur during operation, thereby causing shutdown and inestimable economic loss to the operation of wind field, therefore, the development of gear box operation such as wear particle detection system for monitoring the health state of gear box and fault analysis is one of the problems to be solved.

[0004] Therefore, the prior art has defects and needs to be improved. UTILITY MODEL CONTENT

[0005] The utility model solves the technical problem that provide a kind of wind driven generator gear box oil liquid detection device, can realize the detection to oil liquid under the structure of little modification oil pipe, it is convenient to apply.

[0006] The utility model discloses a technical scheme as follows: provide a kind of wind driven generator gear box oil detection device, comprising: main oil pipe, oil inlet tee, oil outlet tee, double-head oil pipe, double-head oil return pipe, oil sensor, oil inlet valve, oil outlet valve;Two ends of the main oil pipe are communicated with oil inlet tee, oil outlet tee respectively;Two ends of the oil inlet valve are communicated with oil inlet tee, one end of double-head oil pipe respectively, the other end of the double-head oil pipe is communicated with oil sensor;Two ends of the oil outlet valve are communicated with oil outlet tee, one end of double-head oil pipe respectively, the other end of the double-head oil pipe is communicated with oil sensor.Oil passes through oil inlet tee, oil inlet valve, enters double-head oil pipe, then is detected by oil sensor;Oil after detection is discharged by double-head oil pipe and oil outlet valve.

[0007] Taking oil sensor as metal abrasive particle sensor as an example, the device is applied to detect the size of abrasive particles of gear box of wind driven generator set. Wind power generator set is the core equipment of wind power generation system. Abrasive particles generated by gear grinding fall in lubricating oil during operation of wind power generator set. Abrasive particles in oil can effectively reflect the degree of surface abrasion of mechanical parts.

[0008] Further, the wind driven generator gear box oil detection device further comprises: flow regulating valve, the flow regulating valve is installed between double-head oil pipe and oil inlet valve. The flow regulating valve is used to regulate the flow of oil into oil sensor.

[0009] Further, the wind driven generator gear box oil detection device further comprises: female joint; the oil inlet valve, oil inlet tee and flow regulating valve are communicated through female joint; the double-head oil pipe and flow regulating valve are communicated through female joint; the oil outlet valve, oil outlet tee and double-head oil return pipe are communicated through female joint.

[0010] Further, the wind driven generator gear box oil detection device further comprises: fixed support, the fixed support is used to install oil sensor.

[0011] Further, the oil inlet tee is flange tee.

[0012] Further, the wind driven generator gear box oil detection device further comprises: filter installed on the tee, the oil outlet tee is communicated with oil outlet valve through the filter.

[0013] Further, the oil inlet valve and oil outlet valve are ball valves.

[0014] Further, the oil liquid sensor is one of a viscosity sensor, a metal abrasive particle sensor, a water content sensor, an oil liquid particle size sensor, an oxidation degree sensor, a dielectric constant sensor, and an acidity value sensor, or a combination of at least two of them.

[0015] The device can be installed in the lubricating oil pipeline of the fan without changing the original structure of the fan, connected to form a secondary oil pipe channel, and form a secondary oil pipe circuit to detect the wear particles in the oil liquid.

[0016] The device can be installed in the lubricating oil pipeline of the fan without changing the original structure of the fan, connected to form a secondary oil pipe channel, and form a secondary oil pipe circuit to detect the wear particles in the oil liquid. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure of the utility model is shown in the figure. DETAILED DESCRIPTION

[0018] The utility model will be described in detail below in combination with the drawings and specific embodiments.

[0019] Please refer to Figure 1The utility model provides a wind driven generator gear box oil liquid detection device, include: main oil pipe 10, oil inlet tee joint 11, oil outlet tee joint 12, double -end oil pipe 13, double -end oil return pipe 14, oil liquid sensor 15, oil inlet valve 16, oil outlet valve 17, the both ends of main oil pipe 10 are communicated respectively oil inlet tee joint 11, oil outlet tee joint 12, the both ends of oil inlet valve 16 are communicated respectively with oil inlet tee joint 11, double -end oil pipe 13 one end, double -end oil pipe 13 other end and oil liquid sensor 15 are communicated, the both ends of oil outlet valve 17 are communicated respectively with oil outlet tee joint 12, double -end oil pipe one end, double -end oil pipe other end and oil liquid sensor 15 are communicated. Oil liquid passes through oil inlet tee joint 11, oil inlet valve 16, enters double -end oil pipe 13, then is detected by oil liquid sensor 15, and the oil liquid after detection end flows out through oil outlet double -end pipe, oil outlet valve 17.

[0020] With oil liquid sensor 15 as metal abrasive particle sensor as an example, the device is applied to detect the size of the abrasive particles of the gear box of the wind driven generator set. The wind driven generator set is the core equipment of the wind power generation system. During the operation of the wind driven generator set, the gears will be worn with time. The worn particles fall into the lubricating oil. The worn particles in the oil can effectively reflect the wear degree of the surface of the mechanical parts.

[0021] In the embodiment, the wind driven generator gear box oil liquid detection device further comprises a flow regulating valve 18 installed between the double -end oil pipe 13 and the oil inlet valve 16. The flow regulating valve 18 is used to regulate the flow of the oil into the oil liquid sensor 15.

[0022] In the embodiment, the wind driven generator gear box oil liquid detection device further comprises a female joint 19. The oil inlet valve 16, the oil inlet tee joint 11 and the flow regulating valve 18 are connected through the female joint 19. The double -end oil pipe 13 and the flow regulating valve 18 are connected through the female joint 19. The oil outlet valve 17, the oil outlet tee joint 12 and the double -end oil return pipe 14 are connected through the female joint 19.

[0023] In the embodiment, the wind driven generator gear box oil liquid detection device further comprises a fixing bracket 20 used to install the oil liquid sensor 15.

[0024] In the embodiment, the oil inlet tee joint 11 is a flange tee joint.

[0025] In the embodiment, the wind driven generator gear box oil liquid detection device further comprises a filter 21 installed on the tee joint. The oil outlet tee joint 12 is connected with the oil outlet valve 17 through the filter 21.

[0026] In the embodiment, the oil inlet valve 16 and the oil outlet valve 17 are ball valves.

[0027] In the embodiment, the oil sensor 15 is one of a viscosity sensor, a metal particle sensor, a water content sensor, an oil particle size sensor, an oxidation degree sensor, a dielectric constant sensor, and an acidity value sensor, or a combination of at least two of them.

[0028] The device can be installed in the lubricating oil pipeline of the fan without changing the original structure of the fan, connected to form a secondary oil pipe channel, and form a secondary oil pipe circuit to detect wear particles in the oil. Taking the metal particle sensor as an example, the metal particle sensor is installed in the fixed bracket 20, which can be fixed on the fan according to the installation position of the fan. The metal particle sensor is connected to the lubricating system of the gear box through the oil pipe. One end of the double-head oil suction pipe 13 is connected to the pump end (the pump end oil outlet has a certain pressure) of the main oil pipe 10 oil suction port, and the other end is connected to the oil inlet joint of the metal particle sensor. The oil suction port is connected to the ball valve and the flow regulating valve 18 through the matching joint 19, which can be opened / closed and adjust the size of the oil passage. The oil return pipe is connected to the oil outlet end of the metal particle sensor at one end, and is connected to the oil return joint of the main oil pipe 10 at the other end. The oil return port is connected to the ball valve through the matching joint 19, which can control the opening / closing of the joint oil passage. The metal particle sensor is fixed on the fixed bracket 20 and connected by the oil pipe to form an oil passage detection. The detection data is transmitted through the sensor signal by the existing technology, and the detection data can be displayed on the control display terminal or uploaded to the cloud to display the final detection data on the mobile phone terminal. The running health status of the wind turbine generator set is determined by the change of the detection data.

[0029] In summary, the device can be installed in the lubricating oil pipeline of the fan without changing the original structure of the fan, connected to form a secondary oil pipe channel, and form a secondary oil pipe circuit to detect the oil.

[0030] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A wind turbine gearbox oil detection device, characterized in that: include: Main oil pipe, oil inlet tee, oil outlet tee, double-ended oil pipe, double-ended oil return pipe, oil sensor, oil inlet valve, oil outlet valve; the two ends of the main oil pipe are connected to the oil inlet tee and the oil outlet tee respectively; the two ends of the oil inlet valve are connected to the oil inlet tee and one end of the double-ended oil pipe respectively, and the other end of the double-ended oil pipe is connected to the oil sensor; the two ends of the oil outlet valve are connected to the oil outlet tee and one end of the double-ended oil outlet pipe respectively, and the other end of the double-ended oil outlet pipe is connected to the oil sensor.

2. The wind turbine gearbox oil detection device according to claim 1, characterized in that: Also includes: A flow regulating valve is installed between the double-ended oil extraction pipe and the oil inlet valve.

3. The wind turbine gearbox oil detection device according to claim 2, characterized in that: Also includes: Thread connector; The oil inlet valve is connected to the oil inlet tee and the flow regulating valve through a pair of threaded joints; the double-ended oil intake pipe is connected to the flow regulating valve through a pair of threaded joints; the oil outlet valve is connected to the oil outlet tee and the double-ended oil return pipe through a pair of threaded joints.

4. The wind turbine gearbox oil detection device according to claim 1, characterized in that: Also includes: A fixing bracket is used to install an oil sensor.

5. The wind turbine gearbox oil detection device according to claim 1, characterized in that: The oil inlet tee is a flange tee.

6. The wind turbine gearbox oil detection device according to claim 1, characterized in that: Also includes: A filter is installed on the tee, and the oil outlet tee is connected to the oil outlet valve through the filter.

7. The wind turbine gearbox oil detection device according to claim 1, characterized in that: The oil inlet valve and the oil outlet valve are both ball valves.

8. The wind turbine gearbox oil detection device according to claim 1, characterized in that: The oil sensor is one or a combination of at least two of a viscosity sensor, a metal abrasive sensor, a water content sensor, an oil particle size sensor, an oxidation degree sensor, a dielectric constant sensor, and a acidity value sensor.

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