CN216202411U - Lubricating oil filtering auxiliary system for main gear box of wind driven generator - Google Patents
Lubricating oil filtering auxiliary system for main gear box of wind driven generator Download PDFInfo
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- CN216202411U CN216202411U CN202122752410.XU CN202122752410U CN216202411U CN 216202411 U CN216202411 U CN 216202411U CN 202122752410 U CN202122752410 U CN 202122752410U CN 216202411 U CN216202411 U CN 216202411U
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- driven generator
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Abstract
The utility model provides a lubricating oil filtering auxiliary system for a main gear box of a wind driven generator, which comprises an air compression device, a slender steel pipe and an oil discharge ball valve, wherein the oil discharge ball valve is arranged at the bottom of the side surface of the main gear box of the wind driven generator, the interior of the slender steel pipe is hollow, one end of the slender steel pipe is open, the other end of the slender steel pipe is closed, the air compression device is communicated with one end of the opening of the slender steel pipe, the closed end of the slender steel pipe penetrates through the oil discharge ball valve and extends into the interior of the main gear box of the wind driven generator, a plurality of air outlet holes are formed in the pipe wall of the slender steel pipe extending into the interior of the main gear box of the wind driven generator, and the slender steel pipe is detachably and hermetically connected with the oil discharge ball valve.
Description
Technical Field
The utility model belongs to the technical field of lubricating oil filtration, and particularly belongs to a lubricating oil filtration auxiliary system for a main gear box of a wind driven generator.
Background
Wind energy is increasingly regarded as a pollution-free and renewable clean energy source, and the development and utilization of the wind energy are tightened in all countries in the world. The wind driven generator is mainly divided into a double-fed fan and a direct-drive fan, the double-fed fan becomes a mainstream machine type in the fan market by the advantages of mature technology, good stability, high reliability and the like, and one of the remarkable characteristics of the double-fed fan is that a gear box lubricating system is contained in a double-fed machine type component to provide lubrication for a main gear box, an impeller bearing, a main transmission bearing, a yaw system bearing and the like. The amount of lubricating oil used by the main gearbox accounts for 3/4 of the total oil consumption of the wind driven generator, and the main gearbox is a key lubricating point of the fan.
With the wide application of wind driven generators, the faults of the main gearbox of the fan are gradually highlighted, the faults of tooth surface abrasion, tooth surface occlusion scratch, micro pitting corrosion and the like caused by the problem of oil lubrication account for 1/3 of the faults of the fan, and the economic benefit of the wind power industry is seriously influenced. Therefore, the quality of the lubricating oil directly influences whether the gearbox can run safely and stably and is an important guarantee whether a gearbox system can work reliably.
Lubricating oil splashes and lubricates the gear pair in the main gear box, and meanwhile, the lubricating oil is uninterruptedly filtered through a filter outside the main gear box, so that the cleanness of the oil is guaranteed. The filter mainly comprises a filter tank and an oil pump, wherein the inlet of the oil pump is connected to the bottom of the main gearbox through a pipeline, and the outlet of the oil pump is connected to the filter tank through a pipeline. The oil liquid at the bottom of the main gear box enters the filter tank through the oil pump, is filtered and then returns to the spray pipe at the upper part of the main gear box, and then returns to the oil box after being sprayed on the surface of the gear, so that the filtering circulation of the lubricating oil of the main gear box is established.
As the gearbox runs for a long time, a large amount of mechanical particles and sludge are generated, and the mechanical particles and sludge with higher density are deposited at the bottom and dead corners of the main gearbox. Because the filtering flow rate of the filter arranged outside the main gearbox is stable, the lubricating oil at the bottom of the main gearbox enters the oil pump in a steady flow state, and cannot take away mechanical particles and oil sludge deposited at the bottom and dead corners, so that more and more deposits are deposited at the bottom of the main gearbox, the degradation of the lubricating oil is accelerated, and the service life of the main gearbox is influenced. In addition, because the installation space of the main gear box of the fan is narrow and small, the main gear box of the fan is difficult to disassemble and clean, so that pollutants at the bottom of the main gear box of the fan cannot be filtered, and lubricating oil can not be effectively filtered after long-term operation.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a lubricating oil filtering auxiliary system for a main gearbox of a wind driven generator, which improves the filtering efficiency of the lubricating oil of the main gearbox of the wind driven generator and the cleanliness grade of the lubricating oil of the main gearbox.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an aerogenerator master gear case lubricating oil filters auxiliary system, includes air compression device, slender steel pipe and oil drain ball valve, wherein, the oil drain ball valve sets up in aerogenerator master gear case side bottom, the inside cavity of slender steel pipe, one end opening, the other end is airtight, air compression device and slender steel pipe open-ended one end intercommunication, the airtight end of slender steel pipe pass the oil drain ball valve and stretch into inside the aerogenerator master gear case, the slender steel pipe is provided with a plurality of ventholes on stretching into the inside pipe wall of aerogenerator master gear case, sealing connection can be dismantled with the oil drain ball valve to the slender steel pipe.
Furthermore, the outer diameter of the thin steel tube is 5 mm-10 mm.
Furthermore, the distance between the thin steel pipe and the bottom of the main gearbox of the wind driven generator is 10 mm-50 mm.
Furthermore, the length of the thin steel pipe extending into the main gear box of the wind driven generator is 300-600 mm.
Furthermore, 40-80 air outlet holes are uniformly distributed on the part, extending into the main gear box of the wind driven generator, of the thin steel pipe along the circumference, and the diameter of each air outlet hole is 1.5-2.0 mm.
Further, a plug is arranged on the thin steel pipe and is in threaded sealing connection with the oil drain ball valve.
Further, the air compression device comprises an air compressor, an air storage tank, a manual valve, an air filter and an electromagnetic valve, wherein an air outlet of the air compressor is communicated with an inlet of the air storage tank, an outlet of the air storage tank is communicated with an inlet of the air filter through the manual valve, and an outlet of the air filter is communicated with an air inlet of the thin steel pipe through the electromagnetic valve.
Furthermore, the air pressure of the compressed air entering the thin steel tube from the air compression device is 0.4MPa to 0.8 MPa.
Further, the air compression device also comprises an electric control system, the electric control system is connected with the air compressor and used for controlling the opening and closing of the air compressor, and the electric control system is connected with the electromagnetic valve and used for controlling the electromagnetic valve to be uninterruptedly opened or closed so as to generate pulse airflow.
When the lubricating oil filtering auxiliary system is used, the air compression device and the oil discharge ball valve are opened, compressed air enters the bottom of the main gear box of the wind driven generator from the slender steel pipe and blows out from the air outlet hole on the slender steel pipe to disturb and suspend pollutants deposited at the bottom of the main gear box of the wind driven generator, the suspended pollutants flow into the filtering device of the main gear box of the wind driven generator along with the flow of lubricating oil and are filtered by the filtering device, and the pollutants in the lubricating oil are filtered by the filtering device.
Compared with the prior art, the utility model has at least the following beneficial effects:
according to the lubricating oil filtering auxiliary system for the main gear box of the wind driven generator, high-pressure air enters the bottom of the main gear box of the wind driven generator through the slender steel pipe in the oil drain ball valve, strong airflow is sprayed to the periphery through the air outlet holes in the slender steel pipe, mechanical particles and oil sludge deposited at the bottom of the main gear box of the wind driven generator are in a disturbed and suspended state under the disturbance of the airflow, and the filtering efficiency of the lubricating oil of the main gear box of the wind driven generator and the cleaning grade of the lubricating oil of the main gear box are improved.
Preferably, the air compression device of the present invention is provided with an electromagnetic valve, and the electromagnetic valve is continuously opened or closed to generate pulses, so as to further improve the disturbance efficiency of the airflow on the mechanical particles and sludge deposited at the bottom of the main gearbox of the wind turbine generator.
Preferably, the filtration auxiliary system of the utility model can realize the high-efficiency filtration of the lubricating oil of the main gearbox by adopting simple components such as an air compressor, an electromagnetic valve and the like, and is convenient and rapid to install.
Preferably, the air flow generated by the utility model can sweep and disturb the lubricating oil pollutants deposited at the bottom of the main gear box of the wind driven generator, and can assist the original filter to filter the pollutants which are not easy to clean at the bottom and dead corners of the main gear box, thereby improving the filtering efficiency, avoiding the cleaning of the main gear box of the wind driven generator by removing the cover, and saving the maintenance time and cost of the main gear box of the fan.
Drawings
FIG. 1 is a schematic view of a lubricating oil filtration auxiliary system for a main gearbox of a wind turbine generator.
In the drawings: the air-conditioning system comprises an air compressor 1, an air storage tank 2, a manual valve 3, an air filter 4, an electromagnetic valve 5, a fine steel pipe 6, a plug 7, a ball valve 8, an electrical control system 9, a wind driven generator main gear box 10, an oil pump 11 and a filter 12.
Detailed Description
The utility model is further described with reference to the following figures and detailed description.
As shown in FIG. 1, the utility model provides an auxiliary lubricating oil filtering system for a main gearbox of a wind driven generator, which comprises an air compressing device, a slender steel pipe 6, a plug 7 and an oil drain ball valve 8, wherein the oil drain ball valve 8 is arranged at the bottom of the side surface of the main gearbox 10 of the wind driven generator, the slender steel pipe 6 is hollow, the air compressing device is connected with one end of the slender steel pipe 6, the other end of the slender steel pipe 6 penetrates through the oil drain ball valve 8 and extends into the main gearbox 10 of the wind driven generator, the distance between the slender steel pipe 6 and the bottom of the main gearbox 10 of the wind driven generator is 10-50 mm, 40-80 air outlet holes are arranged on the part of the slender steel pipe 6 extending into the main gearbox 10 of the wind driven generator along the circumferential direction of the pipe wall of the slender steel pipe 6, compressed air enters the slender steel pipe 6 and then is sprayed to the periphery through the air outlet holes for disturbing pollutants in the main gearbox 10 of the wind driven generator, the plug 7 is arranged on the slender steel pipe 6, the thin steel pipe 6 is sealed with the oil drain ball valve 8 through the plug 7.
Preferably, the outer diameter of the thin steel tube 6 is 5-10 mm, and the length of the part of the thin steel tube 6 extending into the main gearbox of the wind driven generator is 300-600 mm.
Preferably, the diameter of the air outlet arranged on the thin steel pipe 6 is phi 1.5 mm-phi 2.0 mm.
Preferably, one end of the slender steel pipe 6 extending into the main gearbox 10 of the wind driven generator is blocked, and the part of the slender steel pipe 6 without the small hole is arranged outside the plug 7.
Preferably, a hole with the same outer diameter as the thin steel pipe 6 is drilled in the center of the plug 7, the thin steel pipe 6 passes through the center hole of the plug 7, and the plug 7 provided with the thin steel pipe 6 is in threaded sealing connection with the oil drain ball valve 8.
Preferably, the plug 7 is a standard plug, and the plug 7 and the thin steel tube 6 are sealed by welding or sealing glue.
Preferably, the ball valve 8 is a standard ball valve, and if the oil drain valve at the bottom of the main gearbox 10 of the wind driven generator is a ball valve, the oil drain valve at the bottom of the original main gearbox can be used, and if not, the oil drain valve at the bottom of the original main gearbox is replaced by the standard ball valve 8.
Preferably, the air compression device comprises an air compressor 1, an air storage tank 2, a manual valve 3, an air filter 4, an electromagnetic valve 5 and an electrical control system 9, wherein an air outlet of the air compressor 1 is communicated with an inlet of the air storage tank 2, an outlet of the air storage tank 2 is communicated with an inlet of the air filter 4 through the manual valve 3, an outlet of the air filter 4 is communicated with an air inlet of the thin steel pipe 6 through the electromagnetic valve 5, and the electrical control system 9 is connected with the air compressor 1 and the electromagnetic valve 5 and used for controlling the opening and closing of the air compressor 1 and the electromagnetic valve 5.
Preferably, the air storage tank 2 is a circular tank body and is used for storing compressed air, the air pressure of the compressed air is 0.4 MPa-0.8 MPa, the compressed air provided by the air compressor 1 enters from the bottom of the air storage tank 2 and goes out from the high position of the air storage tank 2, and the generated condensed water is accumulated at the bottom of the air storage tank 2 to prevent water vapor from entering the lubricating oil.
Preferably, the electrical control system 9 controls the air compressor 1 to start when the pressure is lower than 0.4MPa and stop when the pressure reaches 0.8 MPa.
Preferably, the manual valve 3 is a conventional valve, a manual switch.
Preferably, the air filter 4 is a filter element for filtering the compressed air, so as to prevent the particles in the compressed air from entering the lubricating oil to cause pollution.
Preferably, the solenoid valve 5 is controlled by an electrical control system 9 for opening or closing without interruption and generating a pulsed air flow.
An oil outlet of the main gear box of the wind driven generator is connected with a filtering device, the filtering device comprises an oil pump 11 and a filter 12, an inlet of the oil pump 11 is communicated with an oil outlet at the bottom of the main gear box 10 of the wind driven generator, an outlet of the oil pump 11 is communicated with an inlet of the filter 12, and an outlet of the filter 12 is connected with an oil inlet at the top of the main gear box 10 of the wind driven generator.
When in use, the lubricating oil filtering auxiliary system of the main gearbox of the wind driven generator is arranged beside the main gearbox 10 of the wind driven generator with the power of S82-1500kW in a certain wind field, the oil drain valve at the bottom of the main gearbox 10 of the wind driven generator is replaced by the oil drain ball valve 8, and the lubricating oil filtering auxiliary system of the main gearbox of the wind driven generator is connected with the main gearbox through the oil drain ball valve 8.
After connection, the air compressor 1 is started, and then the oil drain ball valve 8 at the bottom of the main gear box 10 of the wind driven generator is started. Air generated by the air compressor 1 enters the air storage tank 2, flows into the air filter 4 through the manual valve 3 for filtering, then enters the bottom of the main gear box 10 of the wind driven generator through the electromagnetic valve 5, the thin steel pipe 6, the plug 7 and the oil drain ball valve 8, and disturbs and suspends pollutants such as mechanical particles and oil sludge deposited at the bottom, and the pollutants deposited at the bottom of the main gear box 10 of the wind driven generator are in a disturbed and suspended state due to the disturbing effect of air flow. The suspended pollutants are pumped away from the oil outlet by the oil pump 11 along with the flow of the lubricating oil and enter the filter 12, and the pollutants are quickly intercepted and filtered by the filter 12.
After the lubricating oil filtering auxiliary system of the main gearbox of the wind driven generator is installed, the cleanliness grade of the operating oil is regularly monitored, the particle pollution degree (GB/T14039 grade) of the lubricating oil of the main gearbox is always within the range of not more than 22/19/16, and the standard requirement of the operating oil is met. The blower is utilized to overhaul the main gearbox in the later stage, the main gearbox is observed to be clean at the bottom and free of dirt deposition, and a satisfactory filtering effect is achieved.
Claims (9)
1. The utility model provides a aerogenerator master gear case lubricating oil filters auxiliary system, its characterized in that, includes air compression device, tubule steel pipe (6) and oil drain ball valve (8), wherein, oil drain ball valve (8) set up in aerogenerator master gear case (10) side bottom, the inside cavity of tubule steel pipe (6), one end opening, the other end is airtight, air compression device and tubule steel pipe (6) open-ended one end intercommunication, the airtight end of tubule steel pipe (6) passes oil drain ball valve (8) and stretches into aerogenerator master gear case (10) inside, tubule steel pipe (6) stretch into and are provided with a plurality of ventholes on the inside pipe wall of aerogenerator master gear case (10), sealing connection can be dismantled with oil drain ball valve (8) to tubule steel pipe (6).
2. The lubricating oil filtering auxiliary system for the main gearbox of the wind driven generator as claimed in claim 1, wherein the thin steel tube (6) has an outer diameter of 5mm to 10 mm.
3. The lubricating oil filtering auxiliary system for the main gearbox of the wind driven generator as claimed in claim 1, wherein the thin steel tube (6) is 10 mm-50 mm away from the bottom of the main gearbox (10) of the wind driven generator.
4. The lubricating oil filtering auxiliary system of the main gearbox of the wind driven generator as claimed in claim 1, wherein the length of the slender steel tube (6) extending into the main gearbox (10) of the wind driven generator is 300 mm-600 mm.
5. The lubricating oil filtering auxiliary system of the main gearbox of the wind driven generator as claimed in claim 1, wherein 40-80 air outlet holes are uniformly arranged along the circumference at the part of the slender steel tube (6) extending into the main gearbox (10) of the wind driven generator, and the diameter of the air outlet holes is 1.5-2.0 mm.
6. The lubricating oil filtering auxiliary system for the main gearbox of the wind driven generator as claimed in claim 1, wherein the thin steel tube (6) is provided with a plug (7), and the plug (7) is in threaded sealing connection with the oil drain ball valve (8).
7. The lubricating oil filtering auxiliary system for the main gearbox of the wind driven generator as claimed in claim 1, wherein the air compression device comprises an air compressor (1), an air storage tank (2), a manual valve (3), an air filter (4) and a solenoid valve (5), an air outlet of the air compressor (1) is communicated with an inlet of the air storage tank (2), an outlet of the air storage tank (2) is communicated with an inlet of the air filter (4) through the manual valve (3), and an outlet of the air filter (4) is communicated with an air inlet of the slender steel pipe (6) through the solenoid valve (5).
8. The lubricating oil filtration auxiliary system for the main gearbox of the wind driven generator as claimed in claim 1, wherein the pressure of the compressed air entering the slender steel tubes (6) from the air compression device is 0.4MPa to 0.8 MPa.
9. The lubricating oil filtering auxiliary system for the main gearbox of the wind driven generator as claimed in claim 7, wherein the air compression device further comprises an electrical control system (9), the electrical control system (9) is connected with the air compressor (1) for controlling the opening and closing of the air compressor (1), and the electrical control system (9) is connected with the electromagnetic valve (5) for controlling the electromagnetic valve (5) to open or close uninterruptedly so as to generate the pulse airflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122752410.XU CN216202411U (en) | 2021-11-10 | 2021-11-10 | Lubricating oil filtering auxiliary system for main gear box of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122752410.XU CN216202411U (en) | 2021-11-10 | 2021-11-10 | Lubricating oil filtering auxiliary system for main gear box of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216202411U true CN216202411U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122752410.XU Active CN216202411U (en) | 2021-11-10 | 2021-11-10 | Lubricating oil filtering auxiliary system for main gear box of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216202411U (en) |
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2021
- 2021-11-10 CN CN202122752410.XU patent/CN216202411U/en active Active
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