Online detection device for oil granularity of wind generating set

Abstract

The utility model relates to the technical field of oil detection, in particular to a wind generating set oil granularity on-line detection device which comprises a detection inclined pipe. An oil feeding hopper is assembled at the top in a penetrating manner, and a connecting hopper is hermetically fixed at the top of the oil feeding hopper. The device has the functions of automatically cleaning and filtering particles, avoiding the problem that the filter screen is blocked due to the fact that the particles are accumulated on the filter screen, ensuring the continuous and effective proceeding of the filtering process, reducing the workload of manual maintenance and the maintenance cost, and detecting the discharged particles in real time by virtue of the light resistance method particle counter. Information such as the number and the size of particles in oil can be timely and accurately mastered, important data support is provided for operation state evaluation and maintenance decision making of equipment, an operator can conveniently and timely adjust operation parameters of the equipment or arrange maintenance work according to particle conditions, and safe and reliable operation of the wind generating set is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of oil detection technology, specifically to an online detection device for oil particle size in wind turbine generator sets. Background Technology

[0002] Oil fluid monitoring technology analyzes the performance changes and wear particles carried by the lubricant (or working medium) in the monitored machine to obtain information on the machine's lubrication and wear status, evaluate the machine's operating condition, predict faults, and determine the cause, type, and technical parameters of the fault components. Patent publication number CN207923873U discloses an online oil fluid monitoring instrument and system for generator sets. In this system, the sensor assembly is installed in a first chamber, and the signal acquisition module is installed in a second chamber. The online oil fluid monitoring instrument is connected to the gear reduction lubrication station via an inlet and outlet pipe. The inlet and outlet pipes pass through the chassis and connect to the sensor assembly, allowing lubricating oil in the gear reduction lubrication station to enter the sensor assembly through the inlet pipe and exit through the outlet pipe, returning to the gear reduction lubrication station. The sensor assembly is electrically connected to the signal acquisition module, and it collects the physicochemical characteristics of the flowing lubricating oil and sends this data to the signal acquisition module for processing. This avoids damage to electronic equipment caused by oil leakage during use in special environments, thus extending the equipment's lifespan. A Chinese patent (authorization announcement number CN220040439U) discloses a wind turbine generator oil monitoring system, belonging to the technical field of generator lubricant testing. It includes an online oil monitoring instrument and an oil inlet and outlet pipe connected to the online oil monitoring instrument. It also includes a housing containing a washing liquid tank. The washing liquid tank is connected to a dual-purpose gas-liquid input pipe, and the housing is connected to a dual-purpose gas-liquid output pipe. The dual-purpose gas-liquid input pipe is connected to the oil inlet pipe, and the dual-purpose gas-liquid output pipe is connected to the oil outlet pipe. Both the dual-purpose gas-liquid input and output pipes are equipped with dual-purpose gas-liquid control valves. One end of the dual-purpose gas-liquid input pipe located inside the washing liquid tank is respectively provided with a gas pipe and a liquid pipe. An air extraction device is installed on the gas pipe, and a liquid extraction device is installed on the liquid pipe. This application simplifies the maintenance procedures for online oil level monitors in generator sets, reduces labor, and improves cleaning efficiency. This patented technology solves the problem that regular cleaning and maintenance of online oil level monitors in generator sets is necessary, but due to the large number of sensors inside these monitors, disassembly and cleaning require significant manpower and resources.

[0003] However, in existing technologies, the presence of particles in the generator set oil can easily cause frictional damage to the generator set. It is necessary to solve the problem of simultaneously filtering particles in the wind turbine generator oil and monitoring them online.

[0004] Therefore, those skilled in the art have provided an online detection device for oil particle size in wind turbine generator sets to solve the problems mentioned in the background art. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides:

[0006] An online detection device for oil particle size in wind turbine generator sets includes:

[0007] The test tube is inclined and has an oil inlet hopper installed through its top, with a connecting hopper sealed and fixed to the top of the oil inlet hopper.

[0008] An oil filter screen is fitted along the inner edge of the bottom of the inclined end of the detection tube.

[0009] An active rod is rotatably installed inside the oil filter screen and located inside the detection inclined tube. A filter screen spiral is fixedly installed on the outer wall of the active rod and closely attached to the inner wall of the detection inclined tube.

[0010] Preferably, an oil inlet pipe is sealed and fixed at the top of the connecting bucket, and an assembly flange is integrally fixed at one end of the top of the oil inlet pipe.

[0011] The oil inlet pipe is connected to the oil outlet pipe of the wind turbine generator set via an assembly flange.

[0012] Preferably, an oil discharge hopper is sealed at one end of the bottom of the detection inclined tube, and an oil discharge pipe is sealed at the bottom of the oil discharge hopper, with a mounting flange two fixed at the bottom of the oil discharge pipe.

[0013] The oil pipe is connected to the oil pipe of the wind turbine generator set via assembly flange two in a sealed manner.

[0014] Preferably, the top of the active rod rotates through the outside of the detection inclined tube and is connected to a brushless motor.

[0015] The brushless motor is fixedly installed on the outer wall of the detection inclined tube and is used to actively drive the rotation of the active rod.

[0016] Preferably, a feeding oil pipe is connected to one end of the top of the detection inclined tube, and an assembly flange is fixed to the bottom of the feeding oil pipe.

[0017] Preferably, the bottom seal of the assembly flange three is detachably installed with an assembly flange four, and the bottom of the assembly flange four is integrally fixed with a detection oil pipe.

[0018] Preferably, a photoresist particle counter is installed on the side of the detection oil pipe.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] This invention can effectively filter oil particles: by setting up an oil filter screen, it can intercept particulate impurities in the oil, prevent them from circulating in the oil system of the wind turbine generator, reduce wear and damage to equipment components caused by particles, extend the service life of the equipment, maintain the stable operation of the system, and reduce the risk of equipment failure.

[0021] This invention features an ingenious design for automatically cleaning filtered particles: a brushless motor drives the active rod and the filter screen to rotate spirally. This design circulates the filtered particles upwards to the discharge oil pipe, achieving automatic cleaning and discharge of particles. This avoids filter screen clogging caused by particle accumulation, ensuring the continuous and effective filtration process. It also reduces the workload and cost of manual maintenance. Furthermore, a photoresist particle counter is used to detect the discharged particles in real time, enabling timely and accurate monitoring of the quantity and size of particles in the oil. This provides crucial data support for equipment operation status assessment and maintenance decisions, allowing operators to adjust equipment operating parameters or schedule maintenance work based on particle conditions, further ensuring the safe and reliable operation of the wind turbine generator set. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an online detection device for oil particle size in a wind turbine generator set provided in this application;

[0023] Figure 2 This is a front structural diagram of an online oil particle size detection device for wind turbine generator sets provided in this application;

[0024] Figure 3 This is a schematic diagram of the disassembled structure of an online oil particle size detection device for wind turbine generator sets provided in this application;

[0025] Figure 4 This is a schematic diagram of point A in the online particle size detection device for wind turbine generator oil provided in this application;

[0026] Figure 5 This is a schematic diagram of the filter spiral in an online particle size detection device for wind turbine generator oil provided in this application.

[0027] In the picture:

[0028] 1. Detection inclined tube; 2. Oil inlet hopper; 3. Connecting hopper; 4. Oil inlet pipe; 5. Assembly flange one; 6. Oil outlet hopper; 7. Oil outlet pipe; 8. Assembly flange two; 9. Oil filter screen; 10. Drive rod; 11. Filter screen spiral; 12. Brushless motor; 13. Discharge oil pipe; 14. Assembly flange three; 15. Assembly flange four; 16. Detection oil pipe; 17. Photoresist particle counter. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The examples of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0030] For examples, please refer to Figures 1-5 This embodiment provides an online detection device for oil particle size of wind turbine generator sets, including: a detection inclined tube 1; an oil inlet hopper 2 is installed through the top, and a connecting hopper 3 is sealed and fixed to the top of the oil inlet hopper 2; an oil filter screen 9 is installed along the inner edge of the bottom of the inclined end of the detection inclined tube 1; an active rod 10 is rotatably installed inside the detection inclined tube 1 on the inner side of the oil filter screen 9, and a filter spiral 11 is fixedly installed on the outer wall of the active rod 10 and closely attached to the inner wall of the detection inclined tube 1.

[0031] The top of the connecting hopper 3 is sealed with an oil inlet pipe 4, and one end of the top of the oil inlet pipe 4 is integrally fixed with an assembly flange 5. The oil inlet pipe 4 is connected to the oil discharge pipe of the wind turbine generator set via the assembly flange 5. One end of the bottom of the detection inclined pipe 1 is sealed with an oil discharge hopper 6, and the bottom end of the oil discharge hopper 6 is sealed with an oil discharge pipe 7, the bottom end of which is integrally fixed with an assembly flange 8. The oil discharge pipe 7 is sealed to the oil pipe of the wind turbine generator set via the assembly flange 8.

[0032] The top end of the active rod 10 rotatably extends through the outside of the detection inclined tube 1 and is connected to a brushless motor 12. The brushless motor 12 is fixedly installed on the outer wall of the detection inclined tube 1 and is used to actively drive the active rod 10 to rotate. One end of the top of the detection inclined tube 1 is connected to a feed oil pipe 13, and the bottom end of the feed oil pipe 13 is integrally fixed with an assembly flange 3 14.

[0033] The bottom of the assembly flange three 14 is detachably sealed with an assembly flange four 15, and the bottom of the assembly flange four 15 is integrally fixed with a detection oil pipe 16. A photoresist particle counter 17 is installed on the side of the detection oil pipe 16.

[0034] According to the above embodiments, the working principle of this invention is as follows:

[0035] The oil pipe of the wind turbine generator set is sealed and assembled through the assembly flange 5 of the oil inlet pipe 4. The oil of the wind turbine generator set flows into the detection inclined pipe 1 that connects the connecting hopper 3 and the oil inlet hopper 2 through the oil inlet pipe 4.

[0036] The oil flows downward under gravity through the inclined detection tube 1, causing it to pass through the oil filter screen 9 and flow into the oil discharge pipe 7 connected to the oil discharge hopper 6. The oil discharge pipe 7 is connected to the oil pipe of the wind turbine generator set, which can circulate and test the filtered oil for reuse.

[0037] Start the brushless motor 12. The start of the brushless motor 12 drives the active rod 10 to rotate, which in turn drives the filter screen spiral 11 to rotate inside the detection inclined tube 1. This allows the particles filtered by the oil filter screen 9 in the oil to be circulated and raised to the position of the discharge oil pipe 13. The particles are then discharged while being detected in real time by the photoresist particle counter 17.

[0038] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An on-line detection device for wind turbine oil particle size, characterized in that, include: The test inclined tube (1) is equipped with an oil inlet hopper (2) through the top, and the top of the oil inlet hopper (2) is sealed and fixed with a connecting hopper (3). An oil filter (9) is fitted along the inner edge of the bottom of the inclined end of the detection tube (1). The oil filter screen (9) is rotatably mounted on the inside of the detection inclined tube (1), and the outer wall of the active rod (10) is fixedly provided with a filter screen spiral (11) that is closely attached to the inner wall of the detection inclined tube (1).

2. The online oil particle size detection device for a wind turbine generator set according to claim 1, characterized in that, The top of the connecting bucket (3) is sealed and fixed with an oil inlet pipe (4), and one end of the top of the oil inlet pipe (4) is fixed with an assembly flange (5).

3. The online oil particle size detection device for a wind turbine generator set according to claim 1, characterized in that, The bottom end of the detection inclined tube (1) is sealed with an oil discharge hopper (6), and the bottom end of the oil discharge hopper (6) is sealed with an oil discharge pipe (7). The bottom end of the oil discharge pipe (7) is fixed with an assembly flange (8).

4. The online oil particle size detection device for a wind turbine generator set according to claim 1, characterized in that, The top of the active rod (10) rotates through the outside of the detection inclined tube (1) and is connected to a brushless motor (12).

5. The wind turbine generator oil particle size on-line detection device according to claim 3, characterized in that, The top end of the detection inclined tube (1) is connected to the feed oil pipe (13), and the bottom end of the feed oil pipe (13) is fixed with the assembly flange three (14).

6. The wind turbine oil particle size on-line detection device according to claim 5, characterized in that, The bottom of the assembly flange three (14) is detachably sealed with an assembly flange four (15), and the bottom of the assembly flange four (15) is fixed with a detection oil pipe (16).

7. The wind turbine oil particle size on-line detection device according to claim 6, characterized in that, A photoresist particle counter (17) is installed on the side of the detection oil pipe (16).

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