CN113639030A - Wind power gear oil maintenance system and maintenance method - Google Patents
Wind power gear oil maintenance system and maintenance method Download PDFInfo
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- CN113639030A CN113639030A CN202110938152.6A CN202110938152A CN113639030A CN 113639030 A CN113639030 A CN 113639030A CN 202110938152 A CN202110938152 A CN 202110938152A CN 113639030 A CN113639030 A CN 113639030A
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- oil
- gear box
- flushing
- abrasive particle
- gear
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- 239000012208 gear oil Substances 0.000 title claims abstract description 61
- 238000012423 maintenance Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003921 oil Substances 0.000 claims abstract description 203
- 230000005291 magnetic effect Effects 0.000 claims abstract description 88
- 238000011010 flushing procedure Methods 0.000 claims abstract description 82
- 239000002245 particle Substances 0.000 claims abstract description 81
- 238000001816 cooling Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 86
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 17
- 239000000498 cooling water Substances 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 15
- 230000001502 supplementing effect Effects 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 239000010779 crude oil Substances 0.000 claims description 6
- 239000013589 supplement Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 18
- 239000002274 desiccant Substances 0.000 description 12
- 239000011358 absorbing material Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 230000005294 ferromagnetic effect Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- 208000035874 Excoriation Diseases 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000010913 used oil Substances 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0408—Exchange, draining or filling of transmission lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0416—Air cooling or ventilation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The invention belongs to the technical field of gear maintenance, and relates to a wind power gear oil maintenance system and a maintenance method, wherein the system comprises a gear box, a flushing oil filter and a strong magnetic abrasive particle removing device which are sequentially connected; a flushing oil return port is arranged on the gear box; the strong magnetic abrasive particle removing device is communicated with the flushing oil return port and comprises a shell and a magnetic rod arranged in the shell; the magnetic bar and the shell are coaxially arranged, and two ends of the magnetic bar are respectively connected with the shell; an oil inlet and an oil outlet are respectively arranged on the shell; the oil inlet is communicated with the oil outlet through a magnetic bar; the flushing oil filter is communicated with the oil inlet; the oil outlet is communicated with the flushing oil return port. The invention has good abrasive particle removing effect and high gear oil cooling efficiency; can thoroughly prevent that moisture from getting into the oil tank, avoid gear secondary wear, reduce the maintenance cost.
Description
Technical Field
The invention belongs to the technical field of gear maintenance, and relates to a wind power gear oil maintenance system and a maintenance method.
Background
The wind power gear oil plays roles of reducing friction, dissipating heat, preventing rust, washing gears, resisting vibration and resisting impact in the wind generating set. The quality of the gear oil is related to the safe operation of the wind generating set and the operation life of the gear, so that the quality of the gear oil is guaranteed to be very important.
The wind power gear oil maintenance mainly comprises the maintenance of abrasive particles and moisture, the abrasive particles generated in the operation process of a unit are not removed in time, so that the abrasive particles enter circulation, the gear is seriously abraded for the second time, and the gear is irreversibly damaged; high moisture content increases the oleic acid value of the gear, not only causing corrosion of the gear, but also increasing the metal content of the oil, and when the standard requirement is exceeded, the gear oil must be replaced by new one.
The existing wind power gear oil maintenance mainly has the following problems:
(1) the device for removing the abrasive particles is characterized in that a gear box is provided with a flushing forced lubricating oil circulating device, a filter is arranged on the device, the filter is used for removing the abraded particles, a filter element arranged in the filter is a 25-micron coarse filter matched with a 10-micron fine filter, but an overflow valve is arranged for ensuring that an oil flow filter element is provided, and when the filter element overpressure overflow valve is opened, the filtering effect cannot be achieved; on the contrary, if the filtering effect is improved, the service life of the filter element is influenced, the replacement cost is increased, and the normal flow of the gear oil cannot be ensured;
(2) for moisture, a common dryer is only adopted in the conventional device, but when the temperature of the gear box is reduced, outside air enters the gear box, moisture in the air is dissolved in oil of the gear box, so that the moisture exceeds the standard, the oleic acid value of the gear is increased, the gear is subjected to acidic corrosion, secondary abrasion is caused, the metal content in the oil exceeds the standard, the gear oil needs to be replaced, and the cost is increased;
(3) the existing device cools crude oil through a circulating water cooler after the crude oil temperature is higher than a set value, but the water storage capacity is small (about 20L), the water temperature rises quickly when the oil temperature is high, heat is stored in water, the cooling effect disappears gradually, and the cooling effect cannot be guaranteed.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a wind power gear oil maintenance system and a maintenance method, which have the advantages of good wear particle removal effect and high gear oil cooling efficiency; can thoroughly prevent that moisture from getting into the oil tank, avoid gear secondary wear, reduce the maintenance cost.
In order to achieve the purpose, the invention adopts the technical scheme that:
a wind power gear oil maintenance system comprises a gear box, a flushing oil filter and a strong magnetic abrasive particle removing device which are sequentially connected; a flushing oil return port is formed in the gear box; the strong magnetic abrasive particle removing device is communicated with the flushing oil return port.
Further, the strong magnetic abrasive particle removing device comprises a shell and a magnetic rod arranged in the shell; the magnetic bar and the shell are coaxially arranged, and two ends of the magnetic bar are respectively connected with the shell; an oil inlet and an oil outlet are respectively arranged on the shell; the oil inlet is communicated with the oil outlet through a magnetic bar; the flushing oil filter is communicated with the oil inlet; the oil outlet is communicated with a flushing oil return port; the inner diameter of the shell is 80-90 mm; the outer diameter D1 of the magnetic rod is 20 mm-40 mm.
Furthermore, the strong magnetic abrasive particle removing device also comprises a large spiral sheet sleeved on the outer wall of the magnetic rod along the axial direction of the magnetic rod; the large spiral sheet is a screw conveyer-shaped spiral sheet consisting of a plurality of large spiral sheets; the lead angle of the large spiral sheet is 20-60 degrees; the outer diameter of the large spiral piece is D2, and the size of D2 is equal to the inner diameter of the shell; the screw pitch of the large spiral piece is 50-100 mm.
Furthermore, the strong magnetic abrasive particle removing device also comprises small spiral sheets which are respectively arranged between the adjacent large spiral sheets of the large spiral sheets; the small spiral sheets are wound on the outer wall of the magnetic rod along the radial direction of the magnetic rod; the small spiral sheet is a packing auger-shaped spiral sheet consisting of a plurality of small spiral sheets; the helix angle of the small helical piece is 20-60 degrees; the outer diameter D3 of the small spiral sheet is (D2-D1) x 1/2; the thread pitch of the small spiral sheet is 30-60 mm.
Further, the wind power gear oil maintenance system further comprises a circulating cooling system; the circulating cooling system comprises a circulating water cooler, a circulating water storage tank and an air-cooled cooler; the oil outlet is also communicated with a flushing oil return port through a circulating water cooler; the circulating water cooler is communicated with the circulating water cooler through the air cooling cooler and the circulating water storage tank.
Further, the wind power gear oil maintenance system further comprises a one-way breathing dryer communicated with the gear box.
Further, the wind power gear oil maintenance system further comprises a water and abrasive particle removing device; the gear box is communicated with the gear box through a water and abrasive particle removing device.
Furthermore, a gear box oil discharge port and a gear box oil supplement port are arranged on the gear box; the oil outlet of the gear box is communicated with the oil supplementing port of the gear box through a water and abrasive particle removing device; the oil supplementing port of the gear box is also communicated with the one-way breathing dryer.
A maintenance method of a wind power gear oil maintenance system comprises the following steps:
1) the flushing oil in the gear box sequentially passes through a flushing oil filter and a strong magnetic abrasive particle removing device, and abrasive particles in the flushing oil are sequentially filtered and adsorbed;
2) detecting the actual temperature of the flushing oil treated in the step 1), comparing the actual temperature with a set temperature, and when the actual temperature is lower than the set temperature, directly returning the flushing oil treated in the step 1) to the gear box through a flushing oil return opening; when the actual temperature is higher than the set temperature, starting a circulating cooling system, cooling the cooling water by using outdoor air, carrying out heat exchange on the cooling water and the flushing oil treated in the step 1) until the actual temperature of the flushing oil treated in the step 1) is lower than the set temperature, and returning the flushing oil to the gear box through a flushing oil return opening;
3) when the temperature of the oil in the gear box is reduced, the outside air enters the gear box after being dried by the one-way breathing dryer, and the moisture in the outside air is removed;
4) the oil discharged from the gear box is dewatered and filtered by the dewatering and abrasive particle removing device and can be used as replenishing oil to return to the gear box from the oil replenishing port of the gear box.
Furthermore, a water absorption filter element and a 3 mu m fine filtration filter element are sequentially arranged in the water and abrasive particle removing device.
The invention has the beneficial effects that:
1. according to the invention, through the flushing oil filter and the strong magnetic abrasive particle removing device, the abrasive particle in the gear flushing oil is filtered and subjected to magnetic adsorption treatment, the removing effect is good, and the oil return flow is not influenced. Furthermore, the invention provides a strong magnetic abrasive particle removing device which comprises a shell, a magnetic rod arranged in the shell, and a large spiral piece and a small spiral piece which are arranged on the magnetic rod respectively, wherein the axis of the large spiral piece is axially vertical to the axis of the small spiral piece, the magnetic strength generated by the magnetic rod is more than 12000 gausses, and iron particles in abrasive particles can be effectively adsorbed; the large spiral sheet plays a role in prolonging the contact time between the gear oil and the magnetic rod; the purpose of being equipped with little spiral piece is increased the gear oil stream and stirs and make the advection turn into the turbulent flow, and granule in the flushing oil all can be close to strong bar magnet closely by chance, and ferromagnetic granule in the reinforcing gear oil is adsorbed on strong bar magnet, plays and removes the grit effect, and it is strong to remove the grit effect, and this strong magnetism removes the grit device and need not to maintain, does not influence oil return flow, reduce cost.
2. The invention adds the air-cooled cooler in the conventional circulating cooling system, when the cooling water in the circulating water cooler passes through the air-cooled cooler, the air-cooled cooler uses outdoor air (the temperature of the outdoor air is generally 10-20 ℃ lower than that of the indoor air) to cool the cooling water, the cooled water returns to the circulating water cooler through the circulating water storage tank, when the flushing oil (the temperature of which is higher than the set value) without abrasive particles passes through the circulating water cooler, the temperature can be quickly reduced, so that the temperature is lower than the set value, and then the flushing oil returns to the gear box, and the heat can be taken out of the cooling system through the circulating cooling system, thereby ensuring the cooling effect of the cooling system and improving the gear oil cooling efficiency.
3. According to the invention, the one-way breathing dryer is arranged on the oil supplementing opening of the gear box, so that when the temperature is raised, oil gas does not contact with the desiccant (the phenomenon that the oil component in the oil gas blocks a pore passage of the desiccant, so that the water absorption speed of the desiccant is slow and the water absorption effect cannot be achieved), when the temperature is lowered, outside air enters the gear box after being dried by the desiccant, the drying environment in the gear box is ensured, the moisture is reduced, the moisture is prevented from exceeding the standard, the secondary abrasion cannot be generated, the metal content in the oil is reduced, the gear oil replacement is reduced, and the cost is reduced.
4. The gear box is also provided with a water removing and abrasive particle removing device, the device is provided with a 3-micron fine filtering filter element and a selective inorganic water absorbing filter element, when gear oil is discharged from an oil discharge port at the bottom of the gear box, the gear oil can be returned to the gear box for continuous use from an oil supplementing port as supplementing oil after being sequentially subjected to water removing and filtering, abrasive particles and water in a system are reduced, and the quality of the oil in the gear box is ensured.
Drawings
FIG. 1 is a diagram of a maintenance system provided by the present invention;
FIG. 2 is a schematic view of a strong magnetic abrasive particle removing device according to the present invention;
FIG. 3 is a schematic view of the internal structure of FIG. 2;
wherein:
1-a gear box; 2-flushing oil filter; 3, a strong magnetic abrasive particle removing device; 31-a housing; 32-an oil inlet; 33-oil outlet; 34-a magnetic bar; 35-a spring; 36-large flight; 37-small spiral sheet; 38-bottom cover; 39-top cover; 4-circulating water cooler; 5, a circulating water storage tank; 6-air cooling cooler; 7-one-way breathing drier; 8-a water and abrasive particle removing device; 9-gearbox oil drain port; 10-oil supplementing port of the gear box; 11-flushing oil return port.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 1, the wind power gear oil maintenance system provided by the embodiment includes a gear box 1, a flushing oil filter 2 and a strong magnetic abrasive particle removing device 3 which are connected in sequence; a flushing oil return port 11 is arranged on the gear box 1; the strong magnetic abrasive particle removing device 3 is communicated with the flushing oil return port 11.
A coarse filtration filter element with the diameter of 25 mu m and a fine filtration filter element with the diameter of 10 mu m are sequentially arranged in the flushing oil filter 2, the coarse filtration filter element and the fine filtration filter element are connected up and down, and overflow valves are arranged at the joints to be matched with each other to filter abrasive particles in oil.
Referring to fig. 2 and 3, the strong magnetic abrasive grain removing device 3 includes a housing 31 and a magnetic rod 34 disposed in the housing 31.
Specifically, the housing 31 includes a tube body, and a top cover 39 and a bottom cover 38 disposed at both ends of the tube body; the tube body is a cylindrical hollow tube, and the top cover 39 and the bottom cover 38 are respectively arranged at two ends of the tube body and connected with the tube body; the length of the shell 31 is 360mm, and the inner diameter of the shell 31 is 40 mm. An oil inlet 32 and an oil outlet 33 are respectively arranged on the pipe body, a coaxial magnetic rod 34 is arranged in the pipe body in the axial direction, two ends of the magnetic rod 34 are respectively correspondingly connected with a top cover 39 and a bottom cover 38, and the oil inlet 32 is communicated with the oil outlet 33 through the magnetic rod 34.
Specifically, the magnetic rod 34 is a cylinder, the length of the magnetic rod 34 is 320mm, the outer diameter D1 of the magnetic rod 34 is 25mm, and the magnetic strength of the magnetic rod 34 is larger than 12000 Gauss. The magnetic bar 34 is arranged in the tube body and is coaxial with the tube body; the oil inlet 32 is communicated with the oil outlet 33 through a magnetic component; one end of the magnetic bar 34 is connected with the top cover 39 through a spring 35; the other end of the magnetic bar 34 is connected with a bottom cover 38 through a spring 35.
Further, the strong magnetic abrasive particle removing device 3 further comprises a large spiral piece 36 which is sleeved on the outer wall of the magnetic rod 34 along the axial direction of the magnetic rod 34. The large spiral sheet 36 is a screw-auger-shaped spiral sheet composed of a plurality of large spiral sheets. The lead angle of the large spiral sheet 36 is 45 degrees; the outer diameter D2 of the large spiral sheet 36 is 83 mm; the pitch of the large spiral sheet 36 is 70 mm. The axial of big flight 36 is the same with bar magnet 34 axial, because the grit granule distribution in the oil receives magnetic force the less far away from the bar magnet, has the appeal gradient, just gets into the interior oil of casing and is inhaled apart from being close to the bar magnet, and far away can influence adsorption effect, and the grit particle diameter is very little, and magnetic force is little to the effect that the volume is littleer, consequently designs big flight 36, increases oil and bar magnet 34 contact time, promotes adsorption effect.
Further, the strong magnetic abrasive particle removing device 3 further comprises small spiral sheets 37 respectively arranged between the adjacent large spiral sheets of the large spiral sheets 36; the small spiral sheets 37 are wound on the outer wall of the magnetic rod 4 along the radial direction of the magnetic rod 34; the small spiral sheet 37 is a screw-auger-shaped spiral sheet composed of a plurality of small spiral sheets. A small spiral piece 37 is arranged between every two large spiral pieces. The lead angle of the small spiral piece is 30 degrees, the outer diameter D3 of the small spiral piece 37 is (D2-D1) × 1/2, that is, the outer diameter D3 of the small spiral piece 37 is (83-25) × 1/2 is 29mm, and the pitch of the small spiral piece is 45 mm. The axial direction of the small spiral sheet 37 is vertical to the axial direction of the magnetic rod 34, and the small spiral sheet 37 is arranged to increase oil flow stirring to convert advection into turbulent flow, so that particles in oil can be close to the magnetic rod at a short distance, the adsorption effect of the magnetic rod on abrasive particles is enhanced, and the service life of the device is prolonged.
In this embodiment, the material is selected from 304 stainless steel without ferromagnetism. The cross-sectional area of the through flow of the flushing oil in the device is larger than the cross-sectional area of the pipeline of the oil inlet and the oil outlet, and the large spiral sheet 36 increases the contact time of the flushing oil and the magnetic rod 34; the purpose of the small spiral pieces 37 is to increase the agitation of the flushing oil flow to convert the advection into turbulence, particles in the flushing oil have a chance to approach the magnetic rod 34 in a close distance, and the ferromagnetic particles in the flushing oil are enhanced to be adsorbed on the magnetic rod 34 to play a role in removing abrasive particles.
In this embodiment, the oil circuit of the gear box 1, the flushing oil filter 2 and the strong magnetic abrasive particle removing device 3 mainly provides the flushing oil for the gear, and after the filtering of the filter element of the flushing oil filter 2, the magnetic particle removing device 3 is used for magnetically adsorbing the tiny abrasive particles in the flushing oil under the strong magnetic action, so that almost all the abrasive particles in the flushing oil are removed, and the effect is good.
The present embodiment lists only one set of preferable size data, but the device size provided by the present embodiment is not limited thereto, and any value within the following range may be selected for replacement.
Wherein, the length of the shell 31 is within 300 mm-600 mm, and the inner diameter of the shell 31 is equal to the outer diameter D2 of the large spiral piece 36; the length of the magnetic bar 34 is 200 mm-550 mm; the outer diameter D1 of the magnetic rod 34 is between 20mm and 40 mm.
Wherein, the lead angle of the big spiral sheet 36 is between 20 degrees and 60 degrees; the outer diameter D2 of the large spiral sheet 36 is between 80mm and 90 mm; the pitch of the large spiral piece 36 is 50-100 mm.
Wherein, the helix angle of the small helical piece 37 is between 20 degrees and 60 degrees; the outer diameter D3 of the small spiral piece 37 is (D2-D1) × 1/2; the pitch of the small spiral sheet 37 is 30 mm-60 mm.
Example 2
Referring to fig. 1, on the basis of embodiment 1, the wind power gear oil maintenance system further includes a circulating cooling system.
Specifically, the circulating cooling system comprises a circulating water cooler 4, a circulating water storage tank 5 and an air cooling cooler 6; the oil outlet 33 is also communicated with a flushing oil return port 11 through a circulating water cooler 4; the circulating water cooler 4 is communicated with the circulating water cooler 4 through an air cooling cooler 6 and a circulating water storage tank 5.
In the present embodiment, the treated flushing oil, when it is detected that its temperature is lower than the set value, is returned directly to the gearbox 1 via the flushing oil return 11; when the temperature is detected to be higher than the set value, the circulating cooling system is started, and the treated oil is further cooled by cooling the cooling water by using outdoor air. The specific process is as follows: when cooling water in the circulating water cooler 4 passes through the air-cooled cooler 6, the air-cooled cooler 6 cools the cooling water by using outdoor air (the temperature of the outdoor air is generally 10-20 ℃ lower than that of the indoor air), the cooled water returns to the circulating water cooler 4 through the circulating water storage tank 5, and when flushing oil (the temperature of which is higher than a set value) with abrasive particles removed passes through the circulating water cooler 4, the temperature of the flushing oil can be quickly reduced to be lower than the set value, and the flushing oil returns to the gear box 1 from the flushing oil return port 11.
In this embodiment, the structure of the circulating water cooler 4 is a shell-and-tube type, oil and cooling water are divided into two paths, and the cooling water is used to cool the oil.
Example 3
Referring to fig. 1, on the basis of embodiment 2, the wind power gear oil maintenance system further includes a one-way breather dryer 7 communicated with the gear box 1, the one-way breather dryer 7 is also a commonly-used oil tank breather, but the commonly-used oil tank breather in the market is a same breathing path (oil gas can pollute a desiccant through a breather desiccant), the one-way breather dryer 7 provided by the invention breathes in different paths, that is, the oil gas of the one-way breather dryer 7 is directly discharged to the atmosphere through a filter screen when the oil tank exhales, and does not pass through a dryer chamber; when the oil tank inhales air, outside air enters the oil tank after being dried by the drying agent in the chamber of the dryer. The gear box 1 is provided with a gear box oil supplementing opening 10, and the gear box oil supplementing opening 10 is communicated with the one-way breathing dryer 7.
Generally, in the use process, when the temperature of the gear box 1 is reduced, outside air enters the gear box 1, so that moisture in the air is dissolved into gear oil, the moisture exceeds the standard, the value of the gear oil is increased, and the gear is subjected to acidic corrosion; causing secondary corrosion and exceeding the metal content in the oil, so that the gear oil must be replaced.
In the embodiment, the one-way breathing dryer 7 is arranged on the oil supplementing port 10 of the gear box, so that when the temperature is increased, oil gas does not contact with the drying agent, oil components in the oil gas can be prevented from blocking a pore passage of the drying agent, the drying agent is prevented from absorbing water, and the effective drying of the water is ensured; when the temperature is reduced, the outside air is dried by the one-way breathing dryer 7 and then enters the gear box 1, so that the drying environment in the oil tank is ensured, and the moisture content in the oil tank is reduced or effectively controlled.
In this embodiment, the one-way breathing dryer 7 is an improved device for the conventional oil tank respirator (the device is a device which is patented by an autonomous research and development technology), and the one-way breathing dryer 7 achieves the effect that when inhaling, the external air enters the oil tank after being dried by the drying agent in the dryer chamber, and does not pass through the drying agent when exhaling; the problem that volatile oil molecules are adsorbed on the surface of a water absorbing material when contacting the water absorbing material along with air, micropores of the water absorbing material are blocked, the water absorbing effect of the water absorbing material is reduced, and even the water absorbing material is invalid is solved, and an oil removing filter screen can be arranged outside the device to solve the problems of complex disassembly and assembly and difficult replacement and maintenance; the expiration communicating vessel is separated from the inspiration communicating vessel, so that the phenomenon that the inspiration is blocked due to the fact that excessive oil molecules are adhered to the inner wall of the inspiration communicating vessel is avoided.
Example 4
Referring to fig. 1, on the basis of embodiment 3, the wind power gear oil maintenance system further includes a water and abrasive particle removing device 8, and a gear box oil drain port 9 is arranged on the gear box 1; the oil outlet 9 of the gear box is communicated with an oil supplementing port 10 of the gear box through a water and abrasive particle removing device 8.
In this embodiment, a water absorption filter element and a 3 μm fine filtration filter element are sequentially disposed in the water and abrasive particle removing device 8. Specifically, the water and abrasive particle removing device 8 comprises an oil pump, a dewatering filter and a fine filter which are connected in sequence; the water absorption filter core is assembled in the dehydration filter, the water absorption filter core is a selective inorganic water absorption filter core and can selectively absorb free water in the gear oil, and the fine filter is assembled with a 3 mu m fine filter core. When the gear oil dehydration device works, gear oil is pressurized by the oil pump and then enters the dehydration filter, the water absorption filter core selectively adsorbs and removes free water in the gear oil, the gear oil is dehydrated and then filtered by the fine filter to remove impurities, and then returns to the oil tank through the oil supplement port 10 (a connecting port of the gear oil dehydration device and the one-way breathing dryer), so that water and wear particles in the gear oil can be effectively removed. The abrasive particle removing device 8 can also be arranged as an online oil filtering device, and is operated by arranging a control unit, so that the abrasive particle removing device is convenient and quick.
In summary, the maintenance method of the wind power gear oil provided by the invention comprises the following steps:
1) flushing oil in the gear box 1 sequentially passes through a flushing oil filter 2 and a strong magnetic abrasive particle removing device 3, and abrasive particle particles in crude oil are sequentially filtered and adsorbed;
the flushing oil firstly passes through the flushing oil filter 2, is filtered by using two-stage filter elements, then enters the shell 31 from the oil inlet 32, the magnetic rod 34 is introduced with a constant flow to generate a magnetic field with the strength of more than 12000 gauss, tiny abrasive particles in the flushing oil can be adsorbed on the magnetic rod, and the large spiral sheet 36 plays a role in prolonging the contact time of the flushing oil and the magnetic rod 34; the small spiral piece 37 is arranged for increasing the stirring of the flushing oil flow to convert the advection into the turbulence, so that the abrasive particles in the flushing oil are all close to the magnetic rod 34 at a short distance, and the ferromagnetic particles in the flushing oil are adsorbed to the strong magnetic rod to play a role in removing the abrasive particles;
2) detecting the actual temperature of the flushing oil treated in the step 1), comparing the actual temperature with a set temperature, and when the actual temperature is lower than the set temperature, directly returning the flushing oil treated in the step 1) to the gear box 1 through a flushing oil return port 11; when the actual temperature is higher than the set temperature, starting a circulating cooling system, cooling the cooling water by using outdoor air, carrying out heat exchange on the cooling water and the flushing oil treated in the step 1) until the actual temperature of the flushing oil treated in the step 1) is lower than the set temperature, and returning the flushing oil to the gear box 1 through a flushing oil return port 11;
specifically, when the temperature is detected to be higher than the set value, the treated flushing oil enters the circulating water cooler 4 from the oil outlet 33, the cooling water in the circulating water cooler 4 passes through the air cooling cooler 6, the cooling water is cooled by using outdoor air (the temperature of the outdoor air is generally 10-20 ℃ lower than that of the indoor air), the cooled water returns to the circulating water cooler 4 through the circulating water storage tank 5, the temperature of the treated crude oil can be rapidly reduced, and the temperature of the treated crude oil is lower than the set value,
3) when the temperature of the oil in the gear box 1 is reduced, the outside air enters the gear box 1 after being dried by the one-way breathing dryer 7, and the moisture in the outside air is removed; the one-way breathing dryer 7 is used for preventing external wet air from entering the oil tank when the oil tank inhales air, so that the influence of moisture in the external air on the oil is removed;
4) the oil discharged from the gear box 1 is subjected to water removal and abrasive particle removal by the water removal and abrasive particle removal device 8, and then is returned to the gear box 1 from the gear box oil supplementing port 10.
Gear oil discharged from a gear box oil discharge port 9 contains moisture or impurities, in order to realize the recycling of the gear oil, a water and abrasive particle removing device 8 is arranged, so that the gear oil enters the water and abrasive particle removing device 8 from an oil tank oil discharge port 9, after the gear oil is boosted by an oil pump, the gear oil is sequentially dewatered and subjected to impurity removal treatment by a water absorption filter element and a 3 mu m fine filtration filter element, and the gear oil returns to an oil tank from an oil supplementing port, and the water and abrasive particle removing device 8 is used for performing circulation treatment on all oil discharged from the oil tank.
In the invention, each device can be automatically controlled to perform online treatment on wear particles and moisture in gear oil, so that the oil quality level is ensured, the maintenance time is saved, and the cost is reduced.
Claims (10)
1. The utility model provides a wind-powered electricity generation gear oil maintenance system which characterized in that: comprises a gear box (1), a flushing oil filter (2) and a strong magnetic abrasive particle removing device (3) which are connected in sequence; a flushing oil return port (11) is formed in the gear box (1); the strong magnetic abrasive particle removing device (3) is communicated with the flushing oil return port (11).
2. The wind power gear oil maintenance system according to claim 1, wherein: the strong magnetic abrasive particle removing device (3) comprises a shell (31) and a magnetic rod (34) arranged in the shell (31); the magnetic rod (34) and the shell (31) are coaxially arranged, and two ends of the magnetic rod (34) are respectively connected with the shell (31); an oil inlet (32) and an oil outlet (33) are respectively arranged on the shell (31); the oil inlet (32) is communicated with the oil outlet (33) through a magnetic bar (34); the flushing oil filter (2) is communicated with the oil inlet (32); the oil outlet (33) is communicated with a flushing oil return port (11); the inner diameter of the shell (31) is 80-90 mm; the outer diameter D1 of the magnetic bar (34) is 20 mm-40 mm.
3. The wind power gear oil maintenance system according to claim 2, wherein: the strong magnetic abrasive particle removing device (3) further comprises a large spiral sheet (36) sleeved on the outer wall of the magnetic rod (34) along the axial direction of the magnetic rod (34); the large spiral sheet (36) is a packing auger-shaped spiral sheet consisting of a plurality of large spiral sheets; the lead angle of the large spiral sheet (36) is 20-60 degrees; the outer diameter of the large spiral sheet (36) is D2, and the size of D2 is equal to the inner diameter of the shell (31); the pitch of the large spiral sheet (36) is 50-100 mm.
4. The wind power gear oil maintenance system according to claim 3, wherein: the strong magnetic abrasive particle removing device (3) also comprises small spiral sheets (37) which are respectively arranged between the adjacent large spiral sheets of the large spiral sheets (36); the small spiral sheets (37) are wound on the outer wall of the magnetic rod (4) along the radial direction of the magnetic rod (34); the small spiral sheet (37) is a packing auger-shaped spiral sheet consisting of a plurality of small spiral sheets; the helix angle of the small helical sheet (37) is 20-60 degrees; the outer diameter D3 of the small spiral sheet (37) is (D2-D1) x 1/2; the thread pitch of the small spiral sheet (37) is 30-60 mm.
5. Wind power gear oil maintenance system according to any of claims 2-4, characterized in that: the wind power gear oil maintenance system further comprises a circulating cooling system; the circulating cooling system comprises a circulating water cooler (4), a circulating water storage tank (5) and an air-cooled cooler (6); the oil outlet (33) is also communicated with a flushing oil return port (11) through a circulating water cooler (4); the circulating water cooler (4) is communicated with the circulating water cooler (4) through the air-cooled cooler (6) and the circulating water storage tank (5).
6. The wind power gear oil maintenance system of claim 5, wherein: the wind power gear oil maintenance system further comprises a one-way breathing dryer (7) communicated with the gear box (1).
7. The wind power gear oil maintenance system of claim 6, wherein: the wind power gear oil maintenance system further comprises a water and abrasive particle removing device (8); the gear box (1) is communicated with the gear box (1) through a water and abrasive particle removing device (8).
8. The wind power gear oil maintenance system according to claim 7, wherein: the gearbox (1) is provided with a gearbox oil discharge port (9) and a gearbox oil supplement port (10); the oil discharge port (9) of the gear box is communicated with the oil supplementing port (10) of the gear box through a water and abrasive particle removing device (8); the oil supplementing port (10) of the gear box is also communicated with the one-way breathing dryer (7).
9. The maintenance method of the wind power gear oil maintenance system based on claim 8 is characterized in that: the maintenance method comprises the following steps:
1) flushing oil in the gear box (1) sequentially passes through a flushing oil filter (2) and a strong magnetic abrasive particle removing device (3), and abrasive particle particles in crude oil are sequentially filtered and adsorbed;
2) detecting the actual temperature of the flushing oil treated in the step 1), comparing the actual temperature with a set temperature, and when the actual temperature is lower than the set temperature, directly returning the flushing oil treated in the step 1) to the gear box (1) through a flushing oil return opening (11); when the actual temperature is higher than the set temperature, starting a circulating cooling system, cooling the cooling water by using outdoor air, carrying out heat exchange on the cooling water and the flushing oil treated in the step 1) until the actual temperature of the flushing oil treated in the step 1) is lower than the set temperature, and returning the flushing oil to the gear box (1) through a flushing oil return opening (11);
3) when the temperature of oil in the gear box (1) is reduced, outside air enters the gear box (1) after being dried by the one-way breathing dryer (7) to remove moisture in the outside air;
4) the oil discharged from the gear box (1) is subjected to water removal and abrasive particle removal by the water removal and abrasive particle removal device (8) and then is returned to the gear box (1) from the oil supplement port (10) as supplement oil after being subjected to water removal and filtration.
10. The maintenance method according to claim 9, characterized in that: a water absorption filter core and a 3 mu m fine filtration filter core are sequentially arranged in the water removing and abrasive particle removing device (8).
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| CN202110938152.6A CN113639030B (en) | 2021-08-16 | 2021-08-16 | Wind power gear oil maintenance system and maintenance method |
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| CN115193803A (en) * | 2022-08-19 | 2022-10-18 | 内蒙古沃达新能源科技有限公司 | Intelligent bearing cleaning integrated machine and control method thereof |
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| CN113639030B (en) | 2024-03-26 |
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