CN219692226U - Double-fed unit gear box cooler technical improvement and oil cooling fan reversing operation structure - Google Patents
Double-fed unit gear box cooler technical improvement and oil cooling fan reversing operation structure Download PDFInfo
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- CN219692226U CN219692226U CN202321147819.1U CN202321147819U CN219692226U CN 219692226 U CN219692226 U CN 219692226U CN 202321147819 U CN202321147819 U CN 202321147819U CN 219692226 U CN219692226 U CN 219692226U
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- radiator
- support
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- fan
- double
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- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000007664 blowing Methods 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 24
- 238000004140 cleaning Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012208 gear oil Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- General Details Of Gearings (AREA)
Abstract
A double-feed unit gear box cooler technical improvement and an oil cooling fan reverse running structure. At present, the problem of high oil temperature of the wind generating set generally exists in the large-load continuous operation process, and the reason of the high oil temperature of the whole wind power market is analyzed through statistics. When the oil temperature is higher than 75 degrees, the power of the unit is automatically limited, and the unit loses the generated energy. A kind of double-fed unit gear box cooler technical improvement and oil cooling fan reverse running structure, its composition includes: radiator (1), radiator installs fin group (2), and one side and the fan case of radiator are connected, and the fan case comprises casing (3), blade (4), filter screen (5) and support (6), and the support is connected with the blade through the pivot, installs the filter screen between blade and the support, and the casing lock is on the support body of radiator, and the fin group is whole to be snakelike structure, and wave structure is adopted at the top and the bottom of the monolithic fin (7) of fin group. The utility model is applied to the field of gearboxes.
Description
Technical Field
The utility model relates to a technical improvement of a gearbox cooler of a double-fed unit and an oil cooling fan reversing operation structure.
Background
The gearbox is one of the most important and most valuable components of the doubly-fed wind turbine, the operation stability of the gearbox is important for the stable operation of the wind turbine, and most of the gearbox coolers of the doubly-fed wind turbine are saw-tooth fins or corrugated fins at present, and the fins have a plurality of defects. Firstly, the blockage of the air side is very serious, the cleaning difficulty is high, the time for maintaining the cooling capacity after each cleaning is short, and even some devices have no effect after cleaning. Secondly, the structure is complicated, the processing deviation is large, the flow passage resistance is large, the air pressure loss is large, the blockage is easy, the cleaning after the blockage is difficult, and the cleaning is very difficult for the mixture of the fiber and the greasy dirt blocked inside. The heat dissipation power of the cleaned cooler cannot be recovered to 70% of the original design, so that the radiator is problematic in use.
At present, the problem of high oil temperature of the wind generating set generally exists in the large-load continuous operation process, and the reason of the high oil temperature of the whole wind power market is analyzed through statistics. When the oil temperature is higher than 75 degrees, the set is automatically limited in power (different set values of different sets), so that the set loses the generated energy. Most of the existing gearbox coolers of the doubly-fed machine set adopt zigzag fins or corrugated fins, and the fins have a plurality of defects. Firstly, the blockage of the air side is very serious, the cleaning difficulty is high, the time for maintaining the cooling capacity after each cleaning is short, and even some devices have no effect after cleaning. Meanwhile, the outer fins have the defects of complex structure, large processing deviation, large flow passage resistance, large air pressure loss, easy blockage and difficult cleaning after blockage, and are very difficult to clean for the mixture of the fiber and the greasy dirt blocked inside. The heat dissipation power of the cleaned cooler cannot be recovered to 70% of the original design, so that the radiator is problematic in use.
Disclosure of Invention
The utility model aims to provide a technical improvement of a gearbox cooler of a double-fed unit and an oil cooling fan reversing operation structure.
The above object is achieved by the following technical scheme:
a kind of double-fed unit gear box cooler technical improvement and oil cooling fan reverse running structure, its composition includes: the radiator, the radiator install the fin group, one side of radiator be connected with the fan case, the fan case constitute by casing, blade, filter screen and support, the support be connected with the blade through the pivot, blade and support between install the filter screen, the casing lock on the support body of radiator.
The double-fed unit gearbox cooler technically improved and oil cooling fan reverse running structure, the radiating fin group is of a serpentine structure, and the top and the bottom of a single radiating fin of the radiating fin group are of wavy structures.
The double-feed unit gearbox cooler technical improvement and oil cooling fan reverse running structure, the fan box have a control module and two contactors to realize the fan reverse blowing function, two output ports of the control module respectively control the contactors K04.5.1 and K104.6.1, two contactors are respectively provided with a normally closed auxiliary contact, the two contactors form an interlocking, the contactor K104.5.1 controls the fan motor to rotate positively, and the contactor K104.6.1 controls the motor to rotate reversely
The utility model has the beneficial effects that:
the utility model uses the non-shutter type wing to replace the shutter type wing, so that the unit does not automatically limit power because of high oil temperature, the generating capacity of the unit is improved, the service life of a gear box is prolonged, the running reliability of the unit is further improved, and the high oil temperature fault of the unit is reduced.
2. The purpose of the non-shutter type wing to replace the shutter type wing technical improvement and the oil cooling fan reverse rotation is to eliminate the problem of high oil temperature of the unit caused by the blockage of a cooler, reduce the failure rate of the unit, improve the safety and reliability of equipment and effectively control the production cost.
3. The utility model changes the zigzag wing into the non-shutter wing, thereby avoiding the influence of the blockage of the radiator by the oil sludge and reducing the heat exchange efficiency. The radiator is redesigned, so that the radiating efficiency of the radiator reaches 55KW under the condition that the original size can be directly replaced and installed. The oil temperature of the gear box is ensured to run in a normal temperature range, so that the unit is not automatically limited in power because of high oil temperature, the generating capacity of the unit is improved, the service life of gear oil is prolonged, the service life of the gear box is prolonged, the running reliability of the unit is further improved, and the high fault of the oil temperature of the unit is reduced.
Drawings
Fig. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is a schematic view of a monolithic heat sink.
Fig. 3 is a schematic diagram of a fan circuit.
Fig. 4 is a schematic diagram of the connection of the control module to the contactor.
FIG. 5 is a ladder diagram of the DO ports of the module.
In the figure: 1. radiator 2, fin group, 3, casing, 4, blade, 5, filter screen, 6, support, 7, monolithic fin.
Detailed Description
Examples
A kind of double-fed unit gear box cooler technical improvement and oil cooling fan reverse running structure, its composition includes: radiator 1, the radiator install fin group 2, one side of radiator be connected with the fan case, the fan case constitute by casing 3, blade 4, filter screen 5 and support 6, the support be connected with the blade through the pivot, blade and support between install the filter screen, the casing lock on the support body of radiator. The whole fin group is in a snake-shaped structure, and the top and the bottom of the single fin 7 of the fin group adopt wave-shaped structures.
Examples
The double-fed unit gearbox cooler technical improvement and the oil cooling fan reverse running structure adopt fins without shutters, so that the double-fed unit gearbox cooler has better trafficability and reduces accumulation of impurities in the air in the fins. But the heat dissipation efficiency is not as high as that of the fins in the shutter form, so that the thickness of the radiator is increased to 113mm, the heat dissipation area is increased, and the heat dissipation performance is improved.
The louver-free cooler adopts the design of the outer fin channel with low edge resistance, does not adopt a zigzag fin, has an open air side flow channel and small internal resistance, improves the air shock capability of the fin, adopts a longer air side flow channel, prolongs the heat exchange time, increases the heat exchange surface, and increases the air mixing degree as much as possible in a short air passing time, thus effectively preventing the centrifugal separation phenomenon of greasy dirt and air and reducing the deposition of greasy dirt. After the air side flow channel is prolonged, the design is carried out according to the original size of the mounting bracket, the interchange and the mounting with the original equipment are realized, and the cooler is ensured to be hoisted to the engine room from the hoisting hole of the fan tower barrel and the hoisting hole at the bottom side of the gear box.
Oil cooling radiator fan possesses blowback function
Because the engine room has poor tightness, dust, catkin and the like enter the engine room, and oil vapor volatilized by the leakage of the gear oil exists in the air in the engine room. Dust, catkin and oil vapor are sucked by a fan for a long time and attached to a cooler, and the mixture is easy to cause the blockage of a fin channel.
After the oil cooling fan has the back blowing function, namely, the fan blows back once every two hours, dust, catkin, and the like attached to the radiator are blown away from the radiator in time by the action of wind, the air channel of the radiator is kept smooth at all times, the outside of the radiator is kept clean at all times, and the problem of high automatic power limiting of the oil temperature of the radiator caused by blockage is avoided.
A control module and two contactors are added in the original fan main loop to realize the back blowing function of the fan. The two output ports of the module control contactors K04.5.1 and K104.6.1, respectively, which are each fitted with a normally closed auxiliary contact, which form an interlock, contactor K104.5.1 controls the fan motor to rotate forward and contactor K104.6.1 controls the motor to rotate backward.
Control logic
The DI point of the control module is connected with the A1 port of the fan contactor K104.5, when the DI point has 24V, the control module starts to work, when the DI point has no 24V, the control module stops working, and meanwhile, the timer of the control module is cleared.
DO1 port controls motor forward rotation, DO2 controls motor reverse rotation, T1 (2 hours) is motor forward rotation time as shown in the ladder diagram, T2 (80 seconds) is no motor from motion to rest time, T3 (3 minutes) is motor reverse rotation time, and cycle is completed every 2 hours and 5 minutes and 40 seconds.
Claims (3)
1. A kind of double-fed unit gear box cooler technical improvement and oil cooling fan reverse running structure, its composition includes: radiator, the radiator install fin group, characterized by: one side of radiator be connected with the fan case, the fan case constitute by casing, blade, filter screen and support, the support be connected with the blade through the pivot, blade and support between install the filter screen, the casing lock on the support body of radiator.
2. The dual feed unit gearbox cooler craftwork and oil cooler reverse run architecture of claim 1, characterized by: the whole fin group is in a snake-shaped structure, and the top and the bottom of a single fin of the fin group adopt a wave-shaped structure.
3. The dual feed unit gearbox cooler craftwork and oil cooler reverse run architecture of claim 1, characterized by: the fan box is provided with a control module and two contactors for realizing a fan back-blowing function, the two output ports of the control module respectively control the contactors K04.5.1 and K104.6.1, the two contactors are respectively provided with a normally-closed auxiliary contact, the two contactors form interlocking, the contactor K104.5.1 controls the fan motor to rotate positively, and the contactor K104.6.1 controls the motor to rotate reversely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321147819.1U CN219692226U (en) | 2023-05-13 | 2023-05-13 | Double-fed unit gear box cooler technical improvement and oil cooling fan reversing operation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321147819.1U CN219692226U (en) | 2023-05-13 | 2023-05-13 | Double-fed unit gear box cooler technical improvement and oil cooling fan reversing operation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692226U true CN219692226U (en) | 2023-09-15 |
Family
ID=87938861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321147819.1U Active CN219692226U (en) | 2023-05-13 | 2023-05-13 | Double-fed unit gear box cooler technical improvement and oil cooling fan reversing operation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692226U (en) |
-
2023
- 2023-05-13 CN CN202321147819.1U patent/CN219692226U/en active Active
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