CN117967532A - Heat abstractor of wind driven generator - Google Patents
Heat abstractor of wind driven generator Download PDFInfo
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- CN117967532A CN117967532A CN202410389299.8A CN202410389299A CN117967532A CN 117967532 A CN117967532 A CN 117967532A CN 202410389299 A CN202410389299 A CN 202410389299A CN 117967532 A CN117967532 A CN 117967532A
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- 230000001133 acceleration Effects 0.000 claims abstract description 34
- 238000005192 partition Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims 3
- 230000017525 heat dissipation Effects 0.000 abstract description 45
- 230000000694 effects Effects 0.000 abstract description 28
- 238000010248 power generation Methods 0.000 abstract description 8
- 239000013589 supplement Substances 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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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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Abstract
The invention relates to a wind driven generator heat dissipation device applied to the field of wind driven generators, which comprises a diversion hole, wherein the diversion hole is communicated with a hub and a cabin shell; the front end of the hub is provided with an air inlet, the lower end of the cabin shell is fixed with an air distribution block, and the lower end of the air distribution block is rotationally connected with the tower body of the wind driven generator; the air flow distribution block is provided with an acceleration channel which transversely penetrates through the air flow distribution block, and the axial direction of the central shaft of the acceleration channel is the same as the axial direction of the hub output shaft of the wind driven generator; the middle part of the air flow distribution block is provided with a drainage channel communicated with the interior of the cabin shell, the lower end of the drainage channel is communicated with the acceleration channel, and the air flow distribution block structure is adopted to realize good heat dissipation effect on the interior of the cabin shell; compared with the prior art that the flow is conducted by utilizing the generator blades of the wind driven generator, the heat dissipation mode can avoid the influence on the generator blades, so that the generator blades normally operate, and the influence on the power generation operation of the wind driven generator is avoided.
Description
Technical Field
The invention relates to a heat dissipation device, in particular to a heat dissipation device of a wind driven generator, which is applied to the field of wind driven generators.
Background
The heat dissipation of the generator is used as a main and important component of the heat dissipation of the wind generating set, the structure and efficiency of the heat dissipation of the generator determine the capacity, structure, performance and the like of the generator of the wind generating set, the heat dissipation of the high-power (more than 2 MW) permanent magnet direct-driven generator at the present stage usually adopts an active air cooling mode, and the heat dissipation efficiency of the generator is greatly different according to the heat dissipation requirement although the structures are different, but the manufacturing cost, the using equipment, the occupied space and the like of the generator are approximately the same.
For example: in a wind driven generator heat dissipation device, the heat dissipation process is to make the hot air in the generator and the cold air in the tower barrel at the bottom of the engine room exchange heat by convection through an exhaust fan so as to achieve the heat dissipation effect. And the following steps: in another wind driven generator heat dissipation device, the two motors drive the inner and outer sets of air circulation, so that the heat transfer efficiency is improved, and the heat dissipation effect is enhanced. And the following steps: in another wind driven generator heat dissipation device, air in the generator is pumped out through the heat dissipation motor, and heat is dissipated through heat transfer after passing through the improved heat dissipation pipeline, so that heat dissipation efficiency is improved.
In the above-mentioned scheme, the inventor finds that at least the following problems exist in the prior art:
1. The motor and the motor control device are additionally arranged for driving the air to circularly move, so that the cost and the energy consumption of the wind generating set are increased, and the weight of the wind generating set is increased;
2. The heat dissipation range is limited only by the cabin and the periphery thereof, and the heat dissipation of other equipment of the wind generating set such as a converter, a main control switch cabinet and the like cannot be effectively realized no matter the heat dissipation is carried out in a heat convection mode or a heat conduction mode;
3. The heat dissipation device has higher requirements on the reliability of the motor, and once the motor of the heat dissipation device fails, the heat dissipation effect of the wind generating set is seriously affected, so that the wind generating set cannot work normally, and the working stability and reliability of the wind generating set are reduced.
In order to solve the problems, the specification of Chinese patent CN105863953B discloses a wind driven generator blade, a wind driven generator heat dissipation device and a wind driven generator set. The wind driven generator blade comprises a blade root and a blade main body; further comprises: the air inlet is arranged at the blade root; the air outlet is arranged at the outer surface of the blade main body; the blade air channel is arranged in the blade and is communicated with the air inlet and the air outlet; the backflow prevention device is arranged at the air outlet, and the air at the air inlet can be guided to the air outlet to be discharged through the blade air channel by arranging the blade air channel inside and arranging the air outlet on the outer surface; by utilizing the pressure difference generated when the blades rotate, the moving airflow from the cabin to the air outlets of the blades is formed, and then the heat dissipation of the cabin is realized.
In the prior art, the pressure difference generated when the blades rotate is mainly used for driving the air in the cabin to flow, but when the air flows in the blades, the air cannot influence the rotation of the blades, and especially under the condition that the airflow flowing direction and the rotation direction of the blades cannot be kept consistent, the air flow direction is easy to adversely influence the power generation operation of the wind driven generator, and the power generation effect of the wind driven generator is influenced; meanwhile, the heat exchange between the outside air and the air in the cabin is completed in the hub and the blades, and the heat dissipation effect in the cabin is not ideal.
Disclosure of Invention
Aiming at the prior art, the technical problem to be solved by the invention is how to design the wind driven generator heat dissipation device which can avoid adverse effect on the power generation effect of the wind driven generator (namely, the rotation of the blades is influenced) and can play a role in good heat dissipation.
In order to solve the problems, the invention provides a wind driven generator heat dissipation device, which comprises a cabin shell, wherein a generator and a planetary gear box are arranged in the cabin shell, the front end of the cabin shell is rotationally connected with a hub, and a plurality of uniformly distributed generator blades are radially arranged on the peripheral side of the hub;
The side walls of the cabin shell and the hub which are connected with each other are provided with diversion holes which are communicated with the hub and the cabin shell;
the front end of the hub is provided with an air inlet, and a filter screen with the same shape as the hub is arranged at the air inlet at the front end of the hub;
An air distribution block is fixed at the lower end of the engine room shell, and the lower end of the air distribution block is rotationally connected with a tower body of the wind driven generator; the air flow distribution block is provided with an acceleration channel which transversely penetrates through the air flow distribution block, and the axial direction of the central shaft of the acceleration channel is the same as the axial direction of the hub output shaft of the wind driven generator;
The middle part of the air distribution block is provided with a drainage channel communicated with the interior of the cabin shell, and the lower end of the drainage channel is communicated with the acceleration channel;
and the bottom of the cabin shell is provided with an air outlet which is communicated with the drainage channel.
In the wind driven generator heat dissipating device, air flowing outside is introduced into the hub through the air inlet at the front end of the hub, and a part of air is simultaneously introduced into the accelerating channel, so that the air flow at the lower end of the drainage channel is accelerated by being driven by the air flow when passing through the accelerating channel, the air in the cabin shell is further extracted through the drainage channel, and the air entering from the air inlet at the front end of the hub enters the accelerating channel from the drainage channel after flowing through the cabin shell and is finally discharged from the other end of the accelerating channel; therefore, air enters the cabin shell to radiate the internal generator and the planetary gear box, and a good radiating effect is achieved;
compared with the prior art that the flow is conducted by utilizing the generator blades of the wind driven generator, the heat dissipation mode can avoid the influence on the generator blades, so that the generator blades normally operate, and the influence on the power generation operation of the wind driven generator is avoided.
As a further supplement of the application, the accelerating channel is an hourglass-shaped through hole with larger inner diameters at two ends and smaller inner diameter at the middle part, and the extension direction of the middle shaft of the accelerating channel is consistent with that of the middle shaft of the hub;
the drainage channel is a circular truncated cone-shaped through hole with a larger inner diameter at the upper end and a smaller inner diameter at the lower end, the inner diameter at the upper end of the drainage channel is the same as that of the air outlet, and the inner diameter at the lower end of the drainage channel is larger than that of the middle part of the acceleration channel and smaller than that at the two ends of the acceleration channel.
As a further supplement of the application, the accelerating channel is divided into a accelerating section and a pressure releasing section by the middle part, the accelerating section is positioned at one side close to the blades of the generator, a plurality of swirl plates are fixed in the accelerating section, and the swirl plates are uniformly distributed in the accelerating section in a spiral shape.
As a further supplement of the application, a guide plate is fixed in the cavity of the cabin shell, the guide plate divides the cavity of the cabin shell into a front cabin and a rear cabin, the top of the front cabin is communicated with the top of the rear cabin, and the air outlet hole is arranged at the lower end of the rear cabin.
As a further supplement of the application, the guide plate comprises a division plate and a guide flap, wherein the front side and the rear side of the division plate are respectively fixed on the inner walls of the front side and the rear side of the cabin shell, the guide flap is a ¬ plate with one inclined side, one end of the guide flap is integrally formed with the lower end of the division plate, and the other end of the guide flap is fixed with the inner bottom wall of the cabin shell and positioned at one side of the air outlet close to the hub;
the air outlet is arranged at the lower end of the horizontal part of the drainage folded plate.
As a further supplement of the application, the upper end of the partition plate is integrally formed with a horizontally arranged extension plate which is fixed on the generator and extends to one side of the rear cabin;
The upper end of the extension plate is fixedly provided with a plurality of vertically arranged radiating fins which also extend to one side of the rear cabin.
As a further supplement of the application, a guide cover is fixed on one side of the air distribution block, which is close to the hub, and is communicated with the accelerating channel, and the inner diameter of one end, which is far away from the accelerating channel, of the guide cover is larger and larger than the inner diameters of two ends of the accelerating channel.
As a further supplement of the application, the lower end of the engine room shell is also provided with a threading hole for passing through the cable and the internal pipeline, and the threading hole is positioned at the periphery of the air outlet hole;
the air distribution block is also provided with a wire arrangement cavity which vertically penetrates through the air distribution block, the wire arrangement cavity is not communicated with the acceleration channel and the drainage channel, and the upper end and the lower end of the wire arrangement cavity are respectively communicated with the threading hole and the inner part of the tower body of the wind driven generator.
As a further supplement of the application, the inside of the air inlet hole at the front end of the hub is fixedly provided with a mounting bearing, and the filter screen is rotationally connected with the hub through the mounting bearing.
As another improvement of the application, the accelerating channel is a circular truncated cone-shaped through hole with a larger inner diameter at one end and a smaller inner diameter at the other end, and the direction of the larger inner diameter of the accelerating channel is consistent with that of the hub;
the extending direction of the drainage channel is obliquely arranged, and the opening at the lower end of the drainage channel is intersected with the opening at one end with smaller inner diameter of the acceleration channel.
In summary, the air flowing from the outside is introduced into the hub through the air inlet at the front end of the hub, the filter screen can filter the air entering the hub, the sundries are prevented from entering the cabin shell to adversely affect the movement of the internal generator, the planetary gear box and other parts, and meanwhile, a part of air is introduced into the accelerating channel, the air flow speed is accelerated when passing through the accelerating channel, so that the air flow at the lower end of the guiding channel is accelerated, the air in the cabin shell is further pumped out through the guiding channel, and the air entering through the air inlet at the front end of the hub enters the accelerating channel through the guiding channel after flowing through the cabin shell and is finally discharged from the other end of the accelerating channel; therefore, air enters the cabin shell to radiate the internal generator and the planetary gear box, and a good radiating effect is achieved;
compared with the prior art that the drainage is carried out by utilizing the generator blades of the wind driven generator, the heat dissipation mode can avoid the influence on the generator blades, so that the generator blades normally operate, and the influence on the power generation operation of the wind driven generator is avoided;
Meanwhile, the air inlet direction of the accelerating channel is set to be the same as the axial direction of the output shaft of the hub, namely, the air inlet direction is consistent with the windward side of the generator blade, so that the air distribution block can synchronously rotate with the cabin shell, the hub and the generator blade, and therefore the air flow can always achieve a good drainage effect through the accelerating channel, and the effectiveness of the heat dissipation device is guaranteed.
Drawings
FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present application;
fig. 2 is a cross-sectional view of embodiment 1 of the present application;
FIG. 3 is a cross-sectional view of a nacelle housing of embodiment 1 of the application;
FIG. 4 is a cross-sectional view of an air distribution block according to embodiment 1 of the present application;
FIG. 5 is a cross-sectional view of a hub in accordance with embodiment 1 of the present application;
FIG. 6 is a schematic view of a baffle structure according to embodiment 1 of the present application;
FIG. 7 is a schematic diagram of an air flow path during a heat dissipating operation according to embodiment 1 of the present application;
fig. 8 is a schematic diagram of an air flow path during a heat dissipating operation according to embodiment 2 of the present application.
The reference numerals in the figures illustrate:
1. A nacelle housing; 11. a front compartment; 12. a rear compartment; 13. a threading hole; 14. an air outlet hole; 2. a hub; 3. a generator blade; 4. an air distribution block; 41. an acceleration channel; 411. a speed increasing section; 412. a pressure release section; 42. a drainage channel; 43. a wire arrangement cavity; 5. a filter screen; 51. mounting a bearing; 6. a guide cover; 7. a deflector; 71. a partition plate; 72. a drainage folded plate; 73. an extension plate; 74. a heat radiation fin; 8. a diversion aperture; 9. swirl plate.
Detailed Description
2 Embodiments of the present application will be described in detail with reference to the accompanying drawings.
Embodiment 1: the invention provides a wind driven generator heat dissipation device, which is shown in figures 1-4, and comprises a cabin shell 1, wherein a generator and a planetary gear box are arranged in the cabin shell, the front end of the cabin shell 1 is rotationally connected with a hub 2, and a plurality of uniformly distributed generator blades 3 are radially arranged on the peripheral side of the hub 2;
the side walls of the cabin shell 1 and the hub 2 which are connected with each other are provided with diversion holes 8, and the diversion holes 8 are communicated with the hub 2 and the cabin shell 1;
the front end of the wheel hub 2 is provided with an air inlet, and a filter screen 5 with the same shape as the wheel hub 2 is arranged at the air inlet at the front end of the wheel hub 2;
The lower end of the engine room shell 1 is fixedly provided with an air distribution block 4, and the lower end of the air distribution block 4 is rotationally connected with a tower body of the wind driven generator; the air distribution block 4 is provided with an acceleration channel 41 which transversely penetrates through the air distribution block 4, and the axial direction of the central shaft of the acceleration channel 41 is the same as the axial direction of the hub output shaft of the wind driven generator;
The middle part of the air distribution block 4 is provided with a drainage channel 42 communicated with the interior of the cabin shell 1, and the lower end of the drainage channel 42 is communicated with an acceleration channel 41;
The bottom of the engine room shell 1 is provided with an air outlet hole 14, and the air outlet hole 14 is communicated with a drainage channel 42.
Based on the above structure, the air flowing from outside is introduced into the hub 2 through the air inlet at the front end of the hub 2, and at the same time, a part of the air is introduced into the accelerating channel 41, and the air flow speed is accelerated when the air passes through the accelerating channel 41, so that the air flow at the lower end of the drainage channel 42 is driven to accelerate, and the air in the cabin shell 1 is further extracted through the drainage channel 42, so that the air entering from the air inlet at the front end of the hub 2 enters into the accelerating channel 41 through the drainage channel 42 after flowing through the cabin shell 1, and finally is discharged from the other end of the accelerating channel 41; thereby enabling air to enter the cabin shell 1 to radiate heat of the internal generator and the planetary gear box, and achieving good radiating effect;
Compared with the prior art that the current is conducted by utilizing the generator blades 3 of the wind driven generator, the heat dissipation mode can avoid the influence on the generator blades 3, so that the generator blades 3 normally operate, and the influence on the power generation operation of the wind driven generator is avoided;
Meanwhile, the air inlet direction of the accelerating channel 41 is set to be the same as the axial direction of the output shaft of the hub 2, namely, the air inlet direction is consistent with the windward side of the generator blade 3, so that the air distribution block 4 can synchronously rotate with the cabin shell 1, the hub 2 and the generator blade 3, and therefore the air flow can always have a good drainage effect through the accelerating channel 41, and the effectiveness of the heat dissipation device is guaranteed.
As shown in fig. 2 and fig. 4, the accelerating channel 41 is an hourglass-shaped through hole with larger inner diameters at two ends and smaller inner diameters in the middle, and the extending direction of the middle shaft of the accelerating channel 41 is consistent with that of the middle shaft of the hub 2, so that the accelerating channel 41 has the effect of extruding air to accelerate the flow velocity of the air in the middle of the accelerating channel 41, and simultaneously, the pressure can be relieved in the latter half section;
the drainage channel 42 is a circular truncated cone-shaped through hole with a larger upper end inner diameter and a smaller lower end inner diameter, the inner diameter of the upper end of the drainage channel 42 is larger and is the same as the inner diameter of the air outlet hole 14, the inner diameter of the lower end of the drainage channel 42 is larger than the inner diameter of the middle part of the acceleration channel 41 and smaller than the inner diameters of the two ends of the acceleration channel 41, the drainage channel 42 also has the effect of extruding air to accelerate the air flow in the drainage channel 42, the pressure of the lower end of the drainage channel 42 is always smaller than the pressure of the middle part of the acceleration channel 41, a pressure difference favorable for air flow is formed, the inner diameter of the second half section of the acceleration channel 41 gradually becomes larger, the gas pressure in the channel gradually decreases, and the air is discharged.
Fig. 2 and fig. 4 show that the accelerating channel 41 is divided into a speed increasing section 411 and a pressure releasing section 412 from the middle part, the speed increasing section 411 is positioned at one side close to the generator blade 3, a plurality of swirl plates 9 are fixed in the speed increasing section 411, and the swirl plates 9 are uniformly distributed in the speed increasing section 411 in a spiral shape.
Through the setting of a plurality of whirl pieces 9, can make the air in through the acceleration rate section 411, not only receive the extrusion acceleration of acceleration rate section 411, still form rotatory vortex under the direction effect of a plurality of whirl pieces 9 for the air in through the acceleration rate section 411 further accelerates and can produce the suction effect to the air in the drainage passageway 42, thereby forms more favourable air flow effect.
As shown in fig. 2, a deflector 7 is fixed in the cavity of the cabin shell 1, the deflector 7 divides the cavity of the cabin shell 1 into a front cabin 11 and a rear cabin 12, the top of the front cabin 11 and the top of the rear cabin 12 are communicated, and an air outlet hole 14 is formed in the lower end of the rear cabin 12.
The cavity of the cabin shell 1 is divided into two relatively independent cabins through the guide plate 7, so that air entering the cabin shell 1 from the air inlet hole at the front end of the hub 2 can fully flow through the space in the cabin shell 1 to generate a full heat exchange effect, thereby fully absorbing heat generated during operation of the generator and the planetary gear box in the cabin shell 1 and improving the heat dissipation effect.
As shown in fig. 1, 2 and 6, the deflector 7 comprises a partition plate 71 and a drainage flap 72, wherein the front side and the rear side of the partition plate 71 are respectively fixed on the inner walls of the front side and the rear side of the cabin shell 1, the drainage flap 72 is a '¬' plate with one inclined side, one end of the drainage flap 72 is integrally formed with the lower end of the partition plate 71, and the other end of the drainage flap 72 is fixed with the inner bottom wall of the cabin shell 1 and positioned on one side, close to the hub 2, of the air outlet 14;
the air outlet 14 is arranged at the lower end of the horizontal part of the drainage folded plate 72.
Through the setting of drainage folded plate 72, can lead the air of the lower extreme in the front portion cabin 11 to the front portion cabin 11 upper end to be favorable to the air in the front portion cabin 11 to flow to rear portion cabin 12 top through upper end intercommunication department, flow through rear portion cabin 12 back again by the venthole 14 department of the horizontal part lower extreme of drainage folded plate 72, thereby guaranteed the effect of abundant heat transfer.
As shown in fig. 2 and 7, the upper end of the partition plate 71 is integrally formed with a horizontally arranged fixed extension plate 73, and the extension plate 73 extends to the rear compartment 12 side and covers the generator;
a plurality of vertically arranged heat radiation fins 74 are fixed to the upper end of the extension plate 73, and the heat radiation fins 74 extend toward the rear compartment 12 side as well.
Through the setting of extension board 73, can be with the air direction to the generator rear side of flowing through rear portion cabin 12 top, avoid there is the heat dissipation dead angle to increase the radiating area of generator through radiator fin 74, make the heat conduction that the generator produced to extension board 73 on, and by a plurality of radiator fin 74 heat dissipation, promote the radiating efficiency in the unit time, promote the radiating effect.
As shown in fig. 2, a guide cover 6 is fixed on one side of the air distribution block 4, which is close to the hub 2, the guide cover 6 is communicated with the accelerating channel 41, and the inner diameter of one end, which is far away from the accelerating channel 41, of the guide cover 6 is larger and larger than the inner diameters of two ends of the accelerating channel 41.
Through the setting of kuppe 6, can carry out the direction of great area to the windward that blows to collect more air and get into in the acceleration channel 41, be favorable to playing better air extrusion, acceleration rate effect.
As shown in fig. 3-4, the lower end of the cabin shell 1 is also provided with a threading hole 13 for passing through a cable and an internal pipeline, and the threading hole 13 is positioned at the periphery of the air outlet hole 14;
The air distribution block 4 is also provided with a wire arrangement cavity 43 which vertically penetrates through the air distribution block 4, the wire arrangement cavity 43 is not communicated with the acceleration channel 41 and the drainage channel 42, and the upper end and the lower end of the wire arrangement cavity 43 are respectively communicated with the threading hole 13 and the inside of the tower body of the wind driven generator.
Through the setting of through wires hole 13 and winding displacement chamber 43, can utilize air to join in marriage the stream piece 4 and carry out radiating while, avoid causing the influence to wind-driven generator's winding displacement, pipeline originally, be favorable to the staff to carry out winding displacement, wiring operation to wind-driven generator according to conventional mode for this wind-driven generator heat abstractor can be when playing good heat dissipation effect, less to wind-driven generator's installation, and power generation operation influence.
As shown in fig. 5, a mounting bearing 51 is fixed in an air inlet hole at the front end of the hub 2, and the filter screen 5 is rotatably connected with the hub 2 through the mounting bearing 51.
Through the setting of filter screen 5 and installation bearing 51, can filter the air that gets into in the wheel hub 2, avoid debris to get into in the cabin shell 1 to the motion of parts such as inside generator and planetary gear box cause adverse effect, simultaneously, filter screen 5 can also take place relative rotation through installation bearing 51 and wheel hub 2 to avoid debris to stay on filter screen 5 to influence the effect of admitting air.
Embodiment 2: as shown in fig. 8, the difference from embodiment 1 is that the accelerating channel 41 is a circular truncated cone-shaped through hole with a larger inner diameter at one end and a smaller inner diameter at the other end, and the larger inner diameter end of the accelerating channel 41 is consistent with the direction of the hub 2;
The extending direction of the drainage channel 42 is inclined, and the lower end opening of the drainage channel 42 intersects with the end opening of the acceleration channel 41 having a smaller inner diameter.
Through the above arrangement, the air outflow end of the drainage channel 42 can be located at the end of the acceleration channel 41, where the flow speed is fastest (at this time, pressure relief is completed directly through the external space), so that the effect of sucking air in the drainage channel 42 is further improved, the flow speed of air in the nacelle housing 1 is faster, the heat dissipation efficiency in unit time is improved, and the heat dissipation effect of the wind turbine heat dissipation device is further improved.
The present application is not limited to the above-described embodiments, which are adopted in connection with the actual demands, and various changes made by the person skilled in the art without departing from the spirit of the present application are still within the scope of the present application.
Claims (10)
1. The utility model provides a wind-driven generator heat abstractor, includes inside cabin shell (1) that is equipped with generator and planetary gear case, cabin shell (1) front end rotation is connected with wheel hub (2), a plurality of evenly distributed's generator blade (3) are radially installed to wheel hub (2) week side, its characterized in that:
The side walls of the cabin shell (1) and the wheel hub (2) which are connected with each other are provided with diversion holes (8), and the diversion holes (8) are communicated with the wheel hub (2) and the cabin shell (1);
The front end of the hub (2) is provided with an air inlet, and a filter screen (5) with the same shape as the hub (2) is arranged at the air inlet at the front end of the hub (2);
An air distribution block (4) is fixed at the lower end of the engine room shell (1), and the lower end of the air distribution block (4) is rotationally connected with a tower body of the wind driven generator; an acceleration channel (41) which transversely penetrates through the air distribution block (4) is formed in the air distribution block (4), and the axial direction of the central shaft of the acceleration channel (41) is the same as the axial direction of the hub output shaft of the wind driven generator;
A drainage channel (42) communicated with the interior of the cabin shell (1) is formed in the middle of the air distribution block (4), and the lower end of the drainage channel (42) is communicated with the acceleration channel (41);
An air outlet hole (14) is formed in the bottom of the engine room shell (1), and the air outlet hole (14) is communicated with the drainage channel (42).
2. A wind turbine heat sink according to claim 1, wherein: the accelerating channel (41) is an hourglass-shaped through hole with larger inner diameters at two ends and smaller inner diameter in the middle, and the extension direction of the middle shaft of the accelerating channel (41) is consistent with that of the middle shaft of the hub (2);
the drainage channel (42) is a circular truncated cone-shaped through hole with a larger inner diameter at the upper end and a smaller inner diameter at the lower end, the inner diameter of the upper end of the drainage channel (42) is the same as that of the air outlet hole (14), and the inner diameter of the lower end of the drainage channel (42) is larger than that of the middle part of the acceleration channel (41) and smaller than that of the two ends of the acceleration channel (41).
3. A wind turbine heat sink according to claim 2, wherein: the accelerating channel (41) is divided into a speed increasing section (411) and a pressure releasing section (412) from the middle part, the speed increasing section (411) is positioned at one side close to the generator blade (3), a plurality of swirl plates (9) are fixed in the speed increasing section (411), and the swirl plates (9) are uniformly distributed in the speed increasing section (411) in a spiral shape.
4. A wind turbine heat sink according to claim 1, wherein: the air guide plate (7) is fixed in the cavity of the cabin shell (1), the cavity of the cabin shell (1) is divided into a front cabin (11) and a rear cabin (12) by the air guide plate (7), the tops of the front cabin (11) and the rear cabin (12) are communicated, and the air outlet hole (14) is formed in the lower end of the rear cabin (12).
5. A wind turbine radiator according to claim 4, wherein: the guide plate (7) comprises a separation plate (71) and a drainage folded plate (72), wherein the front side and the rear side of the separation plate (71) are respectively fixed on the inner walls of the front side and the rear side of the cabin shell (1), the drainage folded plate (72) is a '¬' plate with one inclined side, one end of the drainage folded plate (72) and the lower end of the separation plate (71) are integrally formed, and the other end of the drainage folded plate (72) is fixed with the inner bottom wall of the cabin shell (1) and is positioned on one side, close to the hub (2), of the air outlet hole (14);
The air outlet hole (14) is formed in the lower end of the horizontal part of the drainage folded plate (72).
6. A wind turbine heat sink according to claim 5, wherein: an extending plate (73) is fixed at the upper end of the partition plate (71) in an integrated mode, and the extending plate (73) extends to one side of the rear cabin (12) and covers the generator;
a plurality of vertically arranged radiating fins (74) are fixed at the upper end of the extension plate (73), and the radiating fins (74) extend to one side of the rear cabin (12) as well.
7. A wind turbine heat sink according to claim 2, wherein: one side of the air distribution block (4) close to the hub (2) is fixedly provided with a guide cover (6), the guide cover (6) is communicated with the accelerating channel (41), and the inner diameter of one end of the guide cover (6) far away from the accelerating channel (41) is larger and larger than the inner diameters of two ends of the accelerating channel (41).
8. A wind turbine radiator according to claim 4, wherein: the lower end of the cabin shell (1) is also provided with a threading hole (13) for passing through the cable and the internal pipeline, and the threading hole (13) is positioned at the periphery of the air outlet hole (14);
the air distribution block (4) is further provided with a wire arrangement cavity (43) which vertically penetrates through the air distribution block (4), the wire arrangement cavity (43) is not communicated with the acceleration channel (41) and the drainage channel (42), and the upper end and the lower end of the wire arrangement cavity (43) are respectively communicated with the threading hole (13) and the inner part of the tower body of the wind driven generator.
9. A wind turbine heat sink according to claim 1, wherein: the front end air inlet of the hub (2) is internally fixed with a mounting bearing (51), and the filter screen (5) is rotationally connected with the hub (2) through the mounting bearing (51).
10. A wind turbine heat sink according to claim 2, wherein:
The accelerating channel (41) is a circular truncated cone-shaped through hole with one end having a larger inner diameter and the other end having a smaller inner diameter, and the direction of one end of the accelerating channel (41) with the larger inner diameter is consistent with that of the hub (2);
The extending direction of the drainage channel (42) is inclined, and the lower end opening of the drainage channel (42) is intersected with the end opening with the smaller inner diameter of the acceleration channel (41).
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070222223A1 (en) * | 2006-03-22 | 2007-09-27 | General Electric Company | Wind turbine generators having wind assisted cooling systems and cooling methods |
| CN105863953A (en) * | 2016-03-24 | 2016-08-17 | 北京金风科创风电设备有限公司 | Wind driven generator blade, wind driven generator heat dissipation device and wind driven generator set |
| CN206722990U (en) * | 2017-05-08 | 2017-12-08 | 北京金风科创风电设备有限公司 | Cooling system and wind power generating set for wind power generating set |
| CN208073685U (en) * | 2018-04-24 | 2018-11-09 | 北京金风科创风电设备有限公司 | Wind power generating set cooling system and wind power generating set |
| CN108843524A (en) * | 2018-06-22 | 2018-11-20 | 北京金风科创风电设备有限公司 | Heat dissipation system for wind generating set and wind generating set |
| CN110374812A (en) * | 2019-07-12 | 2019-10-25 | 广州市欧伊若科技有限公司 | A kind of safe and reliable wind-driven generator for transmission system |
| CN111237138A (en) * | 2020-03-18 | 2020-06-05 | 中国华能集团清洁能源技术研究院有限公司 | Temperature adjusting device for wind generating set overhaul room |
| CN111279074A (en) * | 2017-10-18 | 2020-06-12 | 远景能源（丹麦）有限公司 | Ventilation and water-gas separation system for wind driven generator |
| CN112524098A (en) * | 2020-12-01 | 2021-03-19 | 上海电气风电集团股份有限公司 | Filter device, wind generating set cooling system and wind generating set |
| CN113202703A (en) * | 2021-06-11 | 2021-08-03 | 华能新疆能源开发有限公司 | Cabin aeration cooling device and method and wind generating set |
| CN113623153A (en) * | 2021-10-12 | 2021-11-09 | 常州优谷新能源科技股份有限公司 | Wind power generator cabin cooling system based on tower drum air supply |
| CN217873127U (en) * | 2022-09-07 | 2022-11-22 | 华能大理风力发电有限公司 | Wind generating set heat radiation structure and wind generating set |
| CN115750241A (en) * | 2022-11-03 | 2023-03-07 | 太原重工股份有限公司 | Hub heat dissipation device of wind turbine generator |
| CN117345559A (en) * | 2023-09-20 | 2024-01-05 | 华能山西综合能源有限责任公司 | Wind driven generator heat abstractor and wind generating set |
-
2024
- 2024-04-02 CN CN202410389299.8A patent/CN117967532B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070222223A1 (en) * | 2006-03-22 | 2007-09-27 | General Electric Company | Wind turbine generators having wind assisted cooling systems and cooling methods |
| CN105863953A (en) * | 2016-03-24 | 2016-08-17 | 北京金风科创风电设备有限公司 | Wind driven generator blade, wind driven generator heat dissipation device and wind driven generator set |
| CN206722990U (en) * | 2017-05-08 | 2017-12-08 | 北京金风科创风电设备有限公司 | Cooling system and wind power generating set for wind power generating set |
| CN111279074A (en) * | 2017-10-18 | 2020-06-12 | 远景能源（丹麦）有限公司 | Ventilation and water-gas separation system for wind driven generator |
| CN208073685U (en) * | 2018-04-24 | 2018-11-09 | 北京金风科创风电设备有限公司 | Wind power generating set cooling system and wind power generating set |
| CN108843524A (en) * | 2018-06-22 | 2018-11-20 | 北京金风科创风电设备有限公司 | Heat dissipation system for wind generating set and wind generating set |
| CN110374812A (en) * | 2019-07-12 | 2019-10-25 | 广州市欧伊若科技有限公司 | A kind of safe and reliable wind-driven generator for transmission system |
| CN111237138A (en) * | 2020-03-18 | 2020-06-05 | 中国华能集团清洁能源技术研究院有限公司 | Temperature adjusting device for wind generating set overhaul room |
| CN112524098A (en) * | 2020-12-01 | 2021-03-19 | 上海电气风电集团股份有限公司 | Filter device, wind generating set cooling system and wind generating set |
| CN113202703A (en) * | 2021-06-11 | 2021-08-03 | 华能新疆能源开发有限公司 | Cabin aeration cooling device and method and wind generating set |
| CN113623153A (en) * | 2021-10-12 | 2021-11-09 | 常州优谷新能源科技股份有限公司 | Wind power generator cabin cooling system based on tower drum air supply |
| CN217873127U (en) * | 2022-09-07 | 2022-11-22 | 华能大理风力发电有限公司 | Wind generating set heat radiation structure and wind generating set |
| CN115750241A (en) * | 2022-11-03 | 2023-03-07 | 太原重工股份有限公司 | Hub heat dissipation device of wind turbine generator |
| CN117345559A (en) * | 2023-09-20 | 2024-01-05 | 华能山西综合能源有限责任公司 | Wind driven generator heat abstractor and wind generating set |
Non-Patent Citations (1)
| Title |
|---|
| 罗列;刘建炜;杨煜晟;谢英柏;: "大功率风力发电机机舱能量节能调节***设计", 应用能源技术, no. 01, 25 January 2016 (2016-01-25), pages 40 - 44 * |
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