CN113639030B - 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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- CN113639030B CN113639030B CN202110938152.6A CN202110938152A CN113639030B CN 113639030 B CN113639030 B CN 113639030B CN 202110938152 A CN202110938152 A CN 202110938152A CN 113639030 B CN113639030 B CN 113639030B
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- gear
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- 239000012208 gear oil Substances 0.000 title claims abstract description 56
- 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 210
- 230000005291 magnetic effect Effects 0.000 claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000011010 flushing procedure Methods 0.000 claims abstract description 73
- 239000002245 particle Substances 0.000 claims abstract description 53
- 238000001816 cooling Methods 0.000 claims abstract description 29
- 239000006061 abrasive grain Substances 0.000 claims abstract description 25
- 230000001502 supplementing effect Effects 0.000 claims description 21
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 20
- 239000000498 cooling water Substances 0.000 claims description 15
- 239000010779 crude oil Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 18
- 208000035874 Excoriation Diseases 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 8
- 239000002274 desiccant Substances 0.000 description 13
- 238000005406 washing Methods 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000010006 flight Effects 0.000 description 6
- 239000011358 absorbing material Substances 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 230000005294 ferromagnetic effect Effects 0.000 description 4
- 238000001914 filtration 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
- 238000003756 stirring Methods 0.000 description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 3
- 239000005642 Oleic acid Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011148 porous material 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect 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
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 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
- 238000009991 scouring Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
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
Landscapes
- 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 connected in sequence; a flushing oil return port is arranged on the gear box; the strong magnetic abrasive grain removing device is communicated with the flushing oil return port and comprises a shell and a magnetic rod arranged in the shell; the magnetic rod and the shell are coaxially arranged, and two ends of the magnetic rod 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 rod; 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 removal effect and high gear oil cooling efficiency; the water can be thoroughly prevented from entering the oil tank, the secondary abrasion of gears is avoided, and the maintenance cost is reduced.
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 has the functions of reducing friction, radiating heat, rust prevention, washing gears, vibration resistance and shock resistance in the wind generating set. The quality of the gear oil relates 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 important.
The wind power gear oil maintenance mainly comprises maintenance of abrasive particles and moisture, and the abrasive particles generated in the running process of the machine set are not removed timely, so that the abrasive particles enter circulation, serious secondary abrasion is caused on the gear, and irreversible damage is caused on the gear; the high moisture content can raise the oleic acid value of the gear, not only causes the corrosion of the gear, but also can raise the metal content in the oil, and when the standard requirement is exceeded, the gear oil must be replaced with new gear oil.
The existing wind power gear oil maintenance mainly has the following problems:
(1) The abrasive grain removal is to equip a scouring forced lubricating oil circulation device on a gear box, and to arrange a filter on the device, the abrasive grain is removed by the filter, the filter core is arranged in the filter and is a 25 μm rough filter and a 10 μm fine filter, but in order to ensure that the oil flow filter core is provided with an overflow valve, when the overpressure overflow valve of the filter core is opened, the filtering effect is not achieved; on the contrary, if the filtering effect is to be 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, only a common dryer is adopted in the existing device, but when the temperature of the gear box is reduced, external air enters the gear box, and the moisture in the air is dissolved into gear box oil, so that the moisture exceeds the standard, the oleic acid value of the gear is raised, the acid corrosion of the gear is caused, secondary abrasion is caused, the metal content in the oil exceeds the standard, the gear oil must be replaced, and the cost is increased;
(3) After the original oil temperature of the existing device is higher than a set value, crude oil is cooled by a circulating water cooler, 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 gradually disappears, 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 good abrasion particle removal effect and high gear oil cooling efficiency; the water can be thoroughly prevented from entering the oil tank, the secondary abrasion of gears is avoided, and the maintenance cost is reduced.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the wind power gear oil maintenance system comprises a gear box, a flushing oil filter and a strong magnetic abrasive particle removing device which are connected in sequence; the gear box is provided with a flushing oil return port; 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 rod and the shell are coaxially arranged, and two ends of the magnetic rod 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 rod; 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.
Further, the strong magnetic abrasive particle removing device also comprises a large spiral piece sleeved on the outer wall of the magnetic rod along the axial direction of the magnetic rod; the large spiral sheet is an auger-shaped spiral sheet formed by a plurality of large spiral sheets; the spiral angle of the large spiral sheet is 20-60 degrees; the outer diameter of the large spiral piece is D2, and the size of the D2 is equal to the inner diameter of the shell; the pitch of the large spiral piece is 50-100 mm.
Further, the strong magnetic abrasive particle removing device also comprises small spiral sheets which are respectively arranged between the adjacent 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 an auger-shaped spiral sheet formed by a plurality of small spiral sheets; the spiral angle of the small spiral piece is 20-60 degrees; the external diameter d3= (D2-D1) ×1/2 of the small spiral piece; the pitch of the small spiral piece is 30 mm-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 an air cooling cooler and a circulating water storage tank.
Further, the wind power gear oil maintenance system further comprises a unidirectional 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.
Further, a gear box oil drain port and a gear box oil supplementing port are arranged on the gear box; the oil drain port of the gear box is communicated with the oil supplementing port of the gear box through a water and abrasive particle removing device; and the oil supplementing port of the gear box is also communicated with the unidirectional breathing dryer.
A maintenance method of a wind power gear oil maintenance system comprises the following steps:
1) The washing oil in the gear box sequentially passes through a washing oil filter and a strong magnetic abrasive particle removing device, and abrasive particles in the washing 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 returning the flushing oil treated in the step 1) to the gear box through the flushing oil return port directly when the actual temperature is lower than the set temperature; when the actual temperature is higher than the set temperature, starting a circulating cooling system, cooling water by using outdoor air, and performing heat exchange between 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 port;
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 unidirectional breathing dryer, and the moisture in the outside air is removed;
4) The oil discharged from the gear box is dehydrated and filtered by the water and abrasive particle removing device, and then can be used as the supplementing oil to return to the gear box from the oil supplementing port of the gear box.
Further, a water-absorbing filter element and a 3 mu m fine filter element are sequentially arranged in the water-removing and abrasive grain-removing device.
The beneficial effects of the invention are as follows:
1. according to the invention, the washing oil filter and the strong magnetic abrasive particle removing device are used for filtering and magnetic adsorption treatment on abrasive particles in the gear washing oil, so that the removal effect is good, and the oil return flow is not influenced. Further, the invention provides a strong magnetic abrasive particle removing device which comprises a shell and a magnetic rod arranged in the shell, wherein a large spiral sheet and a small spiral sheet are respectively arranged on the magnetic rod, the axis of the large spiral sheet is vertical to the axis of the small spiral sheet, and the magnetic force intensity generated by the magnetic rod is more than 12000 gauss, so that iron particles in abrasive particles can be effectively adsorbed; the large spiral piece is used for increasing the contact time of the gear oil and the magnetic rod; the purpose that is equipped with little flight is to increase gear oil flow and stirs and make the flat circulation turn into turbulent flow, and the granule in the flushing oil all has the chance closely to be close to strong magnetic rod, and ferromagnetic granule in the reinforcing gear oil is adsorbed on strong magnetic rod, plays the effect of removing the grit, removes the grit effect strong, and this strong magnetism removes the grit device and need not to maintain, does not influence the oil return flow, reduce cost.
2. According to the invention, the air cooling cooler is added in a conventional circulating cooling system, when cooling water in the circulating water cooler passes through the air cooling cooler, outdoor air (the temperature of the outdoor air is generally lower than that of indoor air by 10-20 ℃) is used for cooling the cooling water, the cooled water returns to the circulating water cooler through the circulating water storage tank, and when flushing oil (the temperature of which is higher than a set value) for removing abrasive particles passes through the circulating water cooler, the temperature of the flushing oil can be quickly reduced to be lower than the set value, and then the flushing oil returns to the gear box, heat can be brought out of the cooling system through the circulating cooling system, so that the cooling effect of the cooling system is ensured, and the cooling efficiency of gear oil is improved.
3. According to the invention, the unidirectional breathing dryer is arranged on the oil supplementing port of the gear box, so that when the temperature is increased, oil gas does not contact with a drying agent (the drying agent is prevented from blocking a drying agent pore channel due to oil components in the oil gas, the water absorption speed of the drying agent is low, and the water absorption effect cannot be achieved), and when the temperature is reduced, outside air enters the gear box after being dried by the drying agent, so that the drying environment in the gear box is ensured, the water content is reduced, the water content is prevented from exceeding the standard, the secondary abrasion is not generated, the metal content in the oil is reduced, the gear oil is reduced, and the cost is reduced.
4. The invention is provided with the device for removing water and abrasive particles outside the gear box, and the device is provided with the 3 mu m fine filter element and the selective inorganic water-absorbing filter element, when gear oil is discharged from the oil drain port at the bottom of the gear box, the gear oil can be returned to the gear box for continuous use as supplementing oil from the oil supplementing port after being sequentially dehydrated and filtered, abrasive particles and moisture in the 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 diagram of a strong magnetic abrasive grain removing device provided by the invention;
FIG. 3 is a schematic view of the internal structure of FIG. 2;
wherein:
1-a gear box; 2-flushing the oil filter; 3-a strong magnetic abrasive grain removing device; 31-a housing; 32-an oil inlet; 33-an oil outlet; 34-magnetic bar; 35-a spring; 36-large spiral sheets; 37-small spiral pieces; 38-a bottom cover; 39-top cover; 4-a circulating water cooler; 5-a circulating water storage tank; 6-an air-cooled cooler; 7-a unidirectional respiration dryer; 8-a water and abrasive particle removing device; 9, an oil drain port of the gear box; 10, an 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 in this embodiment includes a gear box 1, a flushing oil filter 2 and a strong magnetic abrasive grain removing device 3 which are sequentially connected; a flushing oil return port 11 is arranged on the gear box 1; the strong magnetic abrasive grain removing device 3 is communicated with a flushing oil return port 11.
The flushing oil filter 2 is internally provided with a 25 mu m coarse filter element and a 10 mu m fine filter element in sequence, the coarse filter element is connected with the fine filter element up and down, and an overflow valve is arranged at the joint and is matched with the fine filter element 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 are connected with the tube body; the length of the housing 31 is 360mm, and the inner diameter of the housing 31 is 83mm. The oil inlet 32 and the oil outlet 33 are respectively arranged on the tube body, the coaxial magnetic rod 34 is arranged in the axial direction in the tube body, two ends of the magnetic rod 34 are respectively and correspondingly connected with the top cover 39 and the 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 greater than 12000 gauss. The magnetic rod 34 is arranged in the pipe body and is coaxially arranged with the pipe body; the oil inlet 32 is communicated with the oil outlet 33 through a magnetic component; one end of the magnetic rod 34 is connected with the top cover 39 through a spring 35; the other end of the magnetic rod 34 is connected with a bottom cover 38 through a spring 35.
Further, the strong magnetic abrasive grain removing device 3 further comprises a large spiral piece 36 sleeved on the outer wall of the magnetic rod 34 along the axial direction of the magnetic rod 34. The large flight 36 is a auger-like flight made up of a plurality of large flights. The lead angle of the large flight 36 is 45 °; the outer diameter D2 of the large flight 36 is 83mm; the pitch of the large flight 36 is 70mm. The axial direction of the large spiral sheet 36 is the same as that of the magnetic rod 34, because the smaller the distribution of abrasive particles in oil at the far position from the magnetic rod is subjected to magnetic force, the attraction gradient exists, the oil just entering the shell is sucked at the far position from the magnetic rod, the adsorption effect can be influenced, and when the particle size of the abrasive particles is small, the smaller the effect of the magnetic force on the volume is, so the large spiral sheet 36 is designed, the contact time of the oil and the magnetic rod 34 is increased, and the adsorption effect is improved.
Further, the strong magnetic abrasive grain 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 pieces 37 are all wound on the outer wall of the magnetic rod 34 along the radial direction of the magnetic rod 34; the small spiral piece 37 is an auger-shaped spiral piece composed of a plurality of small spiral pieces. Between each two large flights, small flights 37 are provided. The pitch of the small flights is 45mm with a 30 ° pitch angle of the small flights 37, with an outer diameter d3= (D2-D1) x 1/2, i.e. the outer diameter d3= (83-25) x 1/2=29 mm of the small flights 37. The small spiral piece 37 is arranged in the axial direction perpendicular to the axial direction of the magnetic rod 34, and the purpose of arranging the small spiral piece 37 is to increase the stirring of the oil flow to convert the flat flow into turbulent flow, so that particles in the oil can be close to the magnetic rod at 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 materials are all non-ferromagnetic 304 stainless steel. The through-flow sectional area of the flushing oil in the device is larger than the pipeline sectional area of the oil inlet and outlet, and the large spiral piece 36 plays a role in increasing the contact time of the flushing oil and the magnetic rod 34; the purpose of the small spiral piece 37 is to increase the stirring of the flushing oil flow to convert the flat flow into turbulent flow, so that particles in the flushing oil can approach the magnetic rod 34 closely, and ferromagnetic particles in the flushing oil can be adsorbed on the magnetic rod 34 to play a role in removing abrasive particles.
In this embodiment, the gear case 1, the flushing oil filter 2 and the strong magnetic abrasive grain removing device 3 are oil paths for mainly providing flushing oil for gears, after being filtered by the filter element of the flushing oil filter 2, the micro abrasive grains in the flushing oil are magnetically adsorbed by the strong magnetic abrasive grain removing device 3 under the action of strong magnetic, so that almost all abrasive grains in the flushing oil are removed, and the effect is good.
The present embodiment only lists a set of preferred dimensional data, but the device dimensions provided by the present embodiment are not limited thereto, and any of the following ranges may be selected for substitution.
The length of the shell 31 is 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 rod 34 is 200 mm-550 mm; the outer diameter D1 of the magnetic rod 34 is 20 mm-40 mm.
Wherein the helix angle of the large spiral sheet 36 is 20-60 degrees; the outer diameter D2 of the large spiral piece 36 is 80-90 mm; the pitch of the large flight 36 is 50 to 100mm.
Wherein the spiral angle of the small spiral piece 37 is 20-60 degrees; the outer diameter d3= (D2-D1) ×1/2 of the small spiral piece 37; the pitch of the small spiral piece 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 circulation cooling system.
Specifically, 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 an air cooling cooler 6 and a circulating water storage tank 5.
In the embodiment, when the temperature of the treated flushing oil is detected to be lower than a set value, the treated flushing oil is directly returned to the gear box 1 through the flushing oil return port 11; when it is detected that the temperature is higher than the set value, the circulation cooling system is started, and the treated oil is further cooled by cooling the cooling water by using the outdoor air. The specific process is as follows: when the cooling water in the circulating water cooler 4 passes through the air-cooled cooler 6, the air-cooled cooler 6 uses outdoor air (the temperature of the outdoor air is generally lower than that of the indoor air by 10-20 ℃) to cool the cooling water, the cooled water returns into the circulating water cooler 4 through the circulating water storage tank 5, and when the washing oil (the temperature of which is higher than a set value) for removing abrasive particles passes through the circulating water cooler 4, the temperature of the washing oil can be quickly reduced to be lower than the set value, and the washing oil returns into the gear box 1 from the washing oil return opening 11.
In this embodiment, the circulating water cooler 4 has a shell-and-tube structure, and the oil and the cooling water are separated into two paths, so that the cooling water is used for cooling the oil.
Example 3
Referring to fig. 1, on the basis of embodiment 2, the wind power gear oil maintenance system further comprises a unidirectional breathing dryer 7 communicated with the gear box 1, wherein the unidirectional breathing dryer 7 is a common oil tank respirator, but the common oil tank respirator on the market is a same breathing path (oil gas can pollute the drying agent through a respirator drying agent), and the unidirectional breathing dryer 7 provided by the invention breathes different paths, namely, when the oil tank exhales, the oil gas is directly discharged to the atmosphere through a filter screen by the unidirectional breathing dryer 7 without passing through a dryer chamber; when the oil tank is sucked in, external air enters the oil tank after being dried by a drying agent in the dryer chamber. The gear box 1 is provided with a gear box oil supplementing port 10, and the gear box oil supplementing port 10 is communicated with the unidirectional breather dryer 7.
In general, when the temperature of the gear box 1 is reduced in the use process, external air enters the gear box 1, so that moisture in the air is dissolved into gear oil, the moisture exceeds the standard, the oleic acid value of the gear is raised, and the gear is corroded in acid; secondary corrosion is caused, and the metal content in the oil exceeds the standard, so that the gear oil must be replaced.
In the embodiment, the unidirectional breathing dryer 7 is arranged on the oil supplementing port 10 of the gear box, so that when the temperature is increased, the oil gas is not contacted with the drying agent, thus the phenomenon that the oil component in the oil gas blocks the drying agent pore canal, the drying agent is prevented from absorbing water, and the effective drying of the water is ensured; when the temperature is reduced, external air enters the gear box 1 after being dried by the unidirectional breathing dryer 7, 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 unidirectional breathing dryer 7 is a device (the device is applied for patent by self-developed technology) which is improved from the conventional oil tank respirator, and the unidirectional breathing dryer 7 achieves the effect that the external air enters the oil tank after being dried by the desiccant in the dryer chamber during inhalation, but does not pass through the desiccant during exhalation; the influence of moisture in the outside air on oil is removed by avoiding the outside humid air to enter the oil tank, so that the problems that volatile oil molecules are adsorbed on the surface of the water absorbing material when contacting the water absorbing material with the air, the micropores of the water absorbing material are blocked, the water absorbing effect of the water absorbing material is reduced and even fails are solved, and an oil removing filter screen can be arranged outside the device to solve the problems of complicated disassembly and assembly and difficult replacement and maintenance; the expiration communicating vessel is separated from the inspiration communicating vessel, so that the phenomenon that too many oil molecules adhere to the inner wall of the inspiration communicating vessel to cause inspiration blockage is avoided.
Example 4
Referring to fig. 1, on the basis of embodiment 3, the wind power gear oil maintenance system further comprises a water and abrasive grain removing device 8, and a gear box oil drain port 9 is arranged on the gear box 1; the gear box oil drain port 9 is communicated with the gear box oil supplementing port 10 through the water and abrasive particle removing device 8.
In this embodiment, a water-absorbing filter element and a 3 μm fine filter element are sequentially arranged in the water-removing and abrasive grain-removing device 8. Specifically, the water and abrasive grain removing device 8 comprises an oil pump, a dehydration filter and a fine filter which are connected in sequence; the dehydration filter is provided with a water absorption filter element which is a selective inorganic water absorption filter element and can selectively adsorb free water in gear oil, and the fine filter is provided with a 3 mu m fine filter element. During operation, gear oil firstly enters the dehydration filter after being boosted by the oil pump, the water absorption filter element selectively absorbs and removes free water in the gear oil, the gear oil is filtered and impurity-removed by the fine filter after being dehydrated, and then the gear oil returns to the oil tank through the oil supplementing port 10 (a connecting port of the unidirectional breathing dryer) of the gear box, so that water and abrasion particles in the gear oil can be effectively removed. The abrasive grain removing device 8 can be also arranged as an on-line oil filtering device, and is convenient and quick to operate by arranging a control unit.
In summary, the wind power gear oil maintenance method provided by the invention comprises the following steps:
1) The washing oil in the gear box 1 sequentially passes through a washing oil filter 2 and a strong magnetic abrasive grain removing device 3, and abrasive grains in crude oil are sequentially filtered and adsorbed;
the flushing oil firstly passes through the flushing oil filter 2 and is filtered by a two-stage filter element, then enters the shell 31 from the oil inlet 32, the magnetic rod 34 is introduced with constant current to generate a magnetic field with the intensity of more than 12000 gauss, tiny abrasive particles in the flushing oil can be adsorbed on the magnetic rod, and the large spiral piece 36 plays a role in increasing the contact time of the flushing oil and the magnetic rod 34; the purpose of the small spiral piece 37 is to increase the stirring of the flushing oil flow to convert the flat flow into turbulent flow, so that abrasive particles in the flushing oil can approach the magnetic rod 34 closely, and ferromagnetic particles in the flushing oil are adsorbed on 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 returning the flushing oil treated in the step 1) to the gear box 1 directly through the flushing oil return port 11 when the actual temperature is lower than the set temperature; when the actual temperature is higher than the set temperature, starting a circulating cooling system, cooling water by using outdoor air, performing heat exchange between 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 of the flushing oil is detected to be higher than a set value, the treated flushing oil enters the circulating water cooler 4 from the oil outlet 33, cooling water in the circulating water cooler 4 passes through the air cooling cooler 6, outdoor air (the temperature of the outdoor air is generally lower than that of the indoor air by 10-20 ℃) is used for cooling the cooling water, 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 quickly reduced, 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 unidirectional breathing dryer 7, and the moisture in the outside air is removed; the unidirectional breathing dryer 7 is used for preventing external wet air from entering the oil tank when the oil tank sucks air, so that the influence of moisture in the external air on the oil is removed;
4) The oil discharged from the gear case 1 is filtered by the water and abrasive grain removing device 8, and then returned to the gear case 1 from the gear case oil supplementing port 10.
The gear oil discharged from the oil discharge port 9 of the gear box contains water or impurities, in order to realize recycling, 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 the oil discharge port 9 of the oil box, is subjected to water absorption filter element and 3 mu m fine filter element for dehydration and impurity removing treatment after being boosted by an oil pump, and returns to the oil box from an oil supplementing port, and all oil discharged from the oil box is circularly treated by the water and abrasive particle removing device 8.
According to the invention, each device can realize control through automation, and carry out online treatment on abrasion 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. A wind-powered electricity generation gear oil maintenance system, its 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 arranged on the gear box (1); the strong magnetic abrasive grain removing device (3) is communicated with the flushing oil return port (11);
the strong magnetic abrasive grain removing device (3) comprises a shell (31) and a magnetic rod (34) arranged in the shell (31); the magnetic rod (34) is coaxially arranged with the shell (31), 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 rod (34); the flushing oil filter (2) is communicated with the oil inlet (32); the oil outlet (33) is communicated with the flushing oil return port (11); 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 strong magnetic abrasive grain 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 pieces (37) are wound on the outer wall of the magnetic rod (34) along the radial direction of the magnetic rod (34).
2. The wind power gear oil maintenance system of claim 1, wherein: the inner diameter of the shell (31) is 80-90 mm; the outer diameter D1 of the magnetic rod (34) is 20 mm-40 mm.
3. The wind power gear oil maintenance system of claim 2, wherein: the large spiral sheet (36) is an auger-shaped spiral sheet formed by a plurality of large spiral sheets; the spiral angle of the large spiral sheet (36) is 20-60 degrees; the outer diameter of the large spiral piece (36) is D2, and the size of the D2 is equal to the inner diameter of the shell (31); the pitch of the large spiral piece (36) is 50-100 mm.
4. A wind power gear oil maintenance system according to claim 3, wherein: the small spiral sheet (37) is an auger-shaped spiral sheet formed by a plurality of small spiral sheets; the spiral angle of the small spiral piece (37) is 20-60 degrees; the external diameter D3= (D2-D1) x 1/2 of the small spiral piece (37); the pitch of the small spiral piece (37) is 30 mm-60 mm.
5. The wind power gear oil maintenance system according to any one of claims 2-4, wherein: 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 an air-cooled cooler (6) and a 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 unidirectional 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 removal 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 of claim 7, wherein: a gear box oil drain port (9) and a gear box oil supplementing port (10) are arranged on the gear box (1); the gear box oil drain port (9) is communicated with the gear box oil supplementing port (10) through the water and abrasive particle removing device (8); the oil supplementing port (10) of the gear box is also communicated with the unidirectional breathing dryer (7).
9. A maintenance method based on the wind power gear oil maintenance system according to claim 8, characterized in that: the maintenance method comprises the following steps:
1) the flushing oil in the gear box (1) sequentially passes through a flushing oil filter (2) and a strong magnetic abrasive grain removing device (3), and abrasive grain 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 returning the flushing oil treated in the step 1) to the gear box (1) directly through a flushing oil return port (11) when the actual temperature is lower than the set temperature; when the actual temperature is higher than the set temperature, starting a circulating cooling system, cooling water by using outdoor air, and performing heat exchange between 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);
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 a unidirectional breathing dryer (7) to remove the moisture in the outside air;
4) The oil discharged from the gear box (1) is dehydrated and filtered by a water and abrasive particle removing device (8) and then returned to the gear box (1) as the supplementing oil from a gear box supplementing oil port (10).
10. The maintenance method according to claim 9, characterized in that: the water-absorbing filter element and the 3 mu m fine filter element are sequentially arranged in the water-removing and abrasive grain-removing device (8).
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| CN114658832B (en) * | 2022-05-07 | 2022-12-09 | 缙云县博新机械有限公司 | Low-noise low-vibration gear speed reducer |
| CN115193803A (en) * | 2022-08-19 | 2022-10-18 | 内蒙古沃达新能源科技有限公司 | A kind of intelligent bearing cleaning integrated machine and control method thereof |
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