CN216554228U - Heat dissipation device of wind generating set - Google Patents
Heat dissipation device of wind generating set Download PDFInfo
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- CN216554228U CN216554228U CN202122744816.3U CN202122744816U CN216554228U CN 216554228 U CN216554228 U CN 216554228U CN 202122744816 U CN202122744816 U CN 202122744816U CN 216554228 U CN216554228 U CN 216554228U
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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 utility model relates to the technical field of auxiliary equipment of wind generating sets, in particular to a heat dissipation device of a wind generating set. The method is particularly suitable for upgrading and reconstructing existing equipment and installing new equipment. The wind generating set is fixedly arranged in the engine room; the heat dissipation device is characterized in that the cabin wall is provided with heat dissipation holes, the cabin wall is connected with a heat conduction plate, the heat conduction plate is attached to one side of each heat dissipation hole, and the other side of each heat dissipation hole is communicated with the inner cavity of the cabin. The utility model improves the heat dissipation performance by additionally arranging the heat dissipation holes and the heat conduction plate, ensures the use safety of equipment in the cabin, greatly improves the heat dissipation performance by taking a pure copper metal sheet as an example and taking the heat conduction coefficient as 401W/square meter DEG C, and only needs to additionally arrange holes on the existing fan equipment. In addition, in order to improve the air fluidity, the air guide device is additionally arranged, the air inlet volume is increased through the ventilation turbofan, and the heat dissipation and cooling effects are further improved.
Description
Technical Field
The utility model relates to the technical field of auxiliary equipment of wind generating sets, in particular to a heat dissipation device of a wind generating set. The method is particularly suitable for upgrading and reconstructing existing equipment and installing new equipment.
Background
The main heating equipment of the fan is a generator and a gear box, and a large amount of heat is generally generated in a working mode. When the wind driven generator set is designed, a cooling system is generally designed for a generator and a gear box, the wind driven generator is influenced by wind and sand and is mostly designed by adopting a totally enclosed package, the generator cooling mode is mainly an air-water cooling system, the gear box cooling mode is a low-temperature type unit water pump cooling system, the generator and the gear box cooling system mainly reduce the internal temperature of equipment, and the generator and the gear box can generally meet the cooling and heat dissipation requirements. However, the closed shell influences heat dissipation to cause the temperature of the cabin of the wind turbine generator to rise, the existing cabin cover mostly adopts a natural heat dissipation cooling mode, and heat dissipation airflow enters from the bottom of the cabin and flows out from the tail of the cabin. The cabin cover also comprises auxiliary corollary equipment such as a frequency converter, electrical equipment, a wire circuit and the like, and the equipment is not provided with a separately designed heat dissipation system. When the ambient temperature reaches 40 degrees centigrade in summer, inside and outside air current temperature are higher, and convection velocity is slow, can't satisfy the inside heat dissipation requirement in cabin, and the cabin temperature is high, leads to each part temperature high, is unfavorable for wind turbine generator system high load operation. The condition that the auxiliary parts are out of order and then the whole fan work is influenced occurs frequently at high temperature.
In addition, the fans are generally installed in batches, the heat dissipation problem of the engine room cover of the existing fan is not an example, and redesign and installation cannot be realized due to the cost problem; a new device for auxiliary heat dissipation is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model solves the defects of the prior art and provides the heat dissipation device of the wind generating set, which has obvious heat dissipation effect and controllable cost.
The technical scheme adopted by the utility model for solving the technical problems is that
A heat dissipation device of a wind generating set comprises the wind generating set and a cabin, wherein the wind generating set is fixedly arranged in the cabin; the heat dissipation device is characterized in that the cabin wall is provided with heat dissipation holes, the cabin wall is connected with a heat conduction plate, the heat conduction plate is attached to one side of each heat dissipation hole, and the other side of each heat dissipation hole is communicated with the inner cavity of the cabin.
The cabin wall is further provided with an assembling rod and a blocking mechanism, the blocking mechanism comprises a blocking net and an inserting block, the blocking net is arranged on one side of the heat dissipation hole, the blocking mechanism is connected with the assembling rod in a splicing and hanging mode through the inserting block, and the blocking mechanism is located on the side portion of the cabin wall.
The utility model discloses a fan, including the separation mechanism, the separation net is equipped with the turbofan of taking a breath on one side of separation mechanism, and the turbofan of taking a breath includes connecting rod, grafting piece, connecting rod, bearing, axis of rotation and the blade of taking a breath, the suit bearing in the axis of rotation, and the bearing is connected with connecting rod one end, and the connecting rod other end is connected with the grafting piece, and the connecting rod is equipped with the multiunit and constitutes braced frame, and braced frame hangs the dress through the grafting piece with assembling the pole concatenation.
The spout has been seted up to axis of rotation one end, and the interpolation meets the carriage release lever in the spout, is equipped with the scraper blade on the carriage release lever, and the laminating of scraper blade and separation net surface, axis of rotation drive carriage release lever are rotatory, and the carriage release lever passes through expanding spring and is connected with the connecting rod.
And a plurality of groups of heat dissipation holes are formed in the cabin wall of the cabin and are arranged at equal intervals.
The mesh aperture of the blocking net is 5-12 mm.
A rectangular groove is formed in the cabin wall of the cabin, a heat conducting plate is arranged in the rectangular groove, and the heat conducting plate is made of metal materials.
The ventilation turbofan is rotationally driven by an unpowered air ball or an axial flow fan.
The utility model has the advantages of ingenious and practical equipment design, low manufacturing cost, skillful application of limited space of the cabin and great improvement of the heat dissipation effect of the wind generating set, wherein the cabin of the wind generating set is made of glass fiber reinforced plastic, and the heat conductivity coefficient of the glass fiber reinforced plastic is 0.40W/square meter. The glass fiber reinforced plastic has certain thermal insulation performance, if only holes are formed in a glass fiber reinforced plastic cabin for heat dissipation, equipment in the cabin is exposed to dust for a long time to accelerate damage of the equipment due to the influence of strong wind, the heat dissipation performance is improved by additionally arranging the heat dissipation holes and the heat conduction plate, the use safety of the equipment in the cabin is ensured, the heat conduction coefficient is 401W/square meter DEG C by taking a pure copper metal sheet as an example, the heat dissipation performance is greatly improved, and the holes are additionally arranged on the existing fan equipment. In addition, in order to improve the air fluidity, the air guide device is additionally arranged, the air inlet volume is increased through the ventilation turbofan, and the heat dissipation and cooling effects are further improved.
Drawings
FIG. 1 is a schematic view of a conventional wind power plant;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of the detailed structure of FIG. 2;
FIG. 4 is a schematic view of a construction of a split bar;
FIG. 5 is a schematic view of the blocking mechanism and the mounting structure of the scavenger fan;
FIG. 6 is a side view of the blocking mechanism;
FIG. 7 is a schematic view of the squeegee in operation.
In the figure: 1. a wind generating set; 2. a nacelle; 3. heat dissipation holes; 4. a rectangular groove; 5. a heat conducting plate; 6. assembling the rods; 7. a blocking mechanism; 71. a barrier net; 72. inserting the block; 8. a connecting rod; 9. a bearing; 10. a rotating shaft; 11. a ventilation blade; 12. a travel bar; 13. a tension spring; 14. a scraper.
Detailed Description
A heat dissipation device of a wind generating set comprises a wind generating set 1 and a cabin 2, wherein the wind generating set 1 is fixedly arranged in the cabin 2; the heat dissipation device is characterized in that the cabin wall 2 of the cabin is provided with heat dissipation holes 3, the cabin wall 2 of the cabin is connected with a heat conduction plate 5, the heat conduction plate 5 is attached to one side of each heat dissipation hole 3, and the other side of each heat dissipation hole 3 is communicated with the inner cavity of the cabin 2.
Still be equipped with on the cabin 2 bulkhead and assemble pole 6 and separation mechanism 7, separation mechanism 7 includes separation net 71 and grafting piece 72, and separation net 71 is established in louvre 3 one side, and separation mechanism 7 is through grafting piece 72 and assemble the concatenation of pole 6 and hang the dress, and separation mechanism 7 is located cabin 2 bulkhead lateral part. The utility model discloses a separation mechanism 7, including connecting rod 8, grafting piece 72, connecting rod 8, bearing 9, axis of rotation 10 and ventilation blade 11, the last suit bearing 9 of axis of rotation 10, bearing 9 is connected with 8 one end of connecting rod, and the connecting rod 8 other end is connected with grafting piece 72, and connecting rod 8 is equipped with the multiunit and constitutes braced frame, braced frame through the grafting piece 72 with assemble 6 concatenation hangers of pole.
A sliding groove is formed in one end of the rotating shaft 10, a moving rod 12 is inserted in the sliding groove, a scraper 14 is arranged on the moving rod 12, the scraper 14 is attached to the outer surface of the barrier net 71, the rotating shaft 10 drives the moving rod 12 to rotate, and the moving rod 12 is connected with the connecting rod 8 through a telescopic spring 13.
And a plurality of groups of heat dissipation holes 3 are formed in the cabin wall of the cabin 2, and the plurality of groups of heat dissipation holes 3 are distributed at equal intervals. The mesh aperture of the barrier net 71 is 5-12 mm. A rectangular groove 4 is formed in the bulkhead of the engine room 2, a heat conducting plate 5 is arranged in the rectangular groove 4, and the heat conducting plate 5 is made of metal. The aperture of the mesh of the blocking mechanism blocking net is 5-12mm, and the blocking mechanism is mainly used for preventing sundries (plastic bags, greasy dirt rags and the like) scraped in strong wind weather, stones and the like from entering the engine room. The elastic force generated by the telescopic spring 13 enables the scraper 14 to contact the blocking net 71, so that the blocking net is effectively cleaned, and the smooth air exchange opening is ensured.
The ventilation turbofan is rotationally driven by an unpowered air ball or an axial flow fan. Above-mentioned mounting means turbofan of taking a breath is current finished product purchase, concrete installation is through plug block 72 and the concatenation of assembling pole 6 and hangs the dress, concrete model and field installation are no longer repeated for this field conventional technology in this field, need explain especially that the present case unpowered wind ball not only can increase the air volume, can rotate the ventilation by oneself under the wind field wind-force effect, if the unit heat dissipation capacity still can't be controlled and can install axial fan additional and further provide the air volume and guarantee the heat dissipation, ventilation in the present case is a key design requirement, must compromise the sand and dust isolation simultaneously, add separation mechanism, furthest extension equipment life on the basis of guaranteeing heat dissipation ventilation.
Description of practical use cases: when the doubly-fed asynchronous generator is in a sub-synchronous working mode, a generator stator transmits all electric energy to a power grid, and slip power is provided for the generator from a frequency converter through a slip ring of the generator; in the supersynchronous mode of operation, the generator delivers approximately 83% of the power directly to the grid via the stator, the remaining power (about 17%) being delivered to the grid from the generator rotor via the frequency converter. The main heating equipment of the fan is a generator and a gear box. The generator and the gear box cooling system mainly reduce the internal temperature of equipment, but the shell dissipates heat to cause the cabin temperature of the wind turbine generator to rise, and the cabin cover only designs a natural heat dissipation cooling mode: the heat dissipation airflow enters from the bottom of the cabin and flows out from the tail part of the cabin. When the environmental temperature reaches 40 degrees centigrade in summer, inside and outside air current temperature is higher, and convection velocity is slow, can't satisfy the inside heat dissipation requirement in cabin, and the cabin temperature is high, leads to each part temperature high, is unfavorable for wind turbine generator system high load operation. The utility model relates to a heat dissipation device of a wind generating set, wherein heat dissipation holes are formed in the right side of a cabin of the wind generating set at equal intervals from top to bottom, rectangular grooves are uniformly formed in the positions of the inner wall of the cabin of the wind generating set on the right side of a generator assembly, pure copper metal heat conduction fins are arranged on the outer sides of the rectangular grooves, the pure copper heat conduction performance is better in the scheme, and other metal materials can be used for controlling the cost. The heat conduction can be accelerated, the aging speed of the internal circuit of the generator assembly can be effectively reduced, and the service life of the generator assembly is prolonged to a certain extent. For example: the thermal conductivity K of pure copper is 401W/square meter (C.) (the thermal conductivity K refers to the heat transferred by the area of 1 square meter within 1 hour under the condition of stable heat transfer and the temperature difference between two sides is 1 ℃), and the heat transfer follows the law of Fourier heat transfer:
Q＝K*A*(T1-T2)/L
in the formula: q is the heat transfer amount (W); k is the thermal conductivity; a is heat transfer area (square meter); l is the heat conduction length; (T1-T2) is the temperature difference.
According to the actual construction project, under the condition that the fan runs at full load in winter, the cabin temperature is about 25 ℃, the ambient temperature is about-15 ℃, the temperature difference reaches 40 ℃, the thermal conductivity K of pure copper is 401W/square meter, the heat transfer area of a pure copper metal sheet is 0.5 square meter, the heat transfer length is 1m, and the Q is 401 0.5 40/1-8020W according to the formula.
According to the actual situation of a wind power plant, when a fan generates electricity, the temperature in a cabin is higher than the ambient temperature, the temperature difference is basically 0-40 ℃, and the range of the pure copper metal sheet for accelerating heat conduction is designed to be approximately 0-8000W. The utility model is provided with the blocking mechanism and the ventilation turbofan, so that foreign matters are prevented from entering the interior of the engine room of the wind generating set, and the normal operation of the generator assembly is ensured.
Claims (8)
1. A heat dissipation device of a wind generating set comprises the wind generating set (1) and a cabin (2), wherein the wind generating set (1) is fixedly arranged in the cabin (2); the heat dissipation device is characterized in that the cabin wall of the cabin (2) is provided with heat dissipation holes (3), the cabin wall of the cabin (2) is connected with a heat conduction plate (5), the heat conduction plate (5) is attached to one side of each heat dissipation hole (3), and the other side of each heat dissipation hole (3) is communicated with the inner cavity of the cabin (2).
2. The heat dissipation device of the wind generating set according to claim 1, wherein the bulkhead of the nacelle (2) is further provided with an assembling rod (6) and a blocking mechanism (7), the blocking mechanism (7) comprises a blocking net (71) and an inserting block (72), the blocking net (71) is arranged on one side of the heat dissipation hole (3), the blocking mechanism (7) is spliced and hung with the assembling rod (6) through the inserting block (72), and the blocking mechanism (7) is located on the lateral portion of the bulkhead of the nacelle (2).
3. The heat dissipation device of the wind generating set according to claim 2, wherein a ventilation turbofan is arranged on one side of the blocking net (71) of the blocking mechanism (7), the ventilation turbofan comprises a connecting rod (8), an insertion block (72), the connecting rod (8), a bearing (9), a rotating shaft (10) and a ventilation blade (11), the bearing (9) is sleeved on the rotating shaft (10), the bearing (9) is connected with one end of the connecting rod (8), the other end of the connecting rod (8) is connected with the insertion block (72), the connecting rod (8) is provided with a plurality of groups of support frames, and the support frames are connected with the insertion block (72) and the assembly rod (6) in a splicing manner.
4. The heat dissipation device of the wind generating set according to claim 3, wherein a sliding groove is formed at one end of the rotating shaft (10), the moving rod (12) is inserted into the sliding groove, the moving rod (12) is provided with a scraper (14), the scraper (14) is attached to the outer surface of the barrier net (71), the rotating shaft (10) drives the moving rod (12) to rotate, and the moving rod (12) is connected with the connecting rod (8) through the expansion spring (13).
5. The heat dissipation device of a wind generating set according to claim 1, wherein the cabin wall of the cabin (2) is provided with a plurality of sets of heat dissipation holes (3), and the plurality of sets of heat dissipation holes (3) are arranged at equal intervals.
6. The heat sink of a wind turbine generator set according to claim 2, wherein the mesh size of the barrier net (71) is 5-12 mm.
7. The heat dissipation device of a wind generating set according to claim 1, wherein the cabin wall of the cabin (2) is provided with a rectangular groove (4), a heat conduction plate (5) is arranged in the rectangular groove (4), and the heat conduction plate (5) is made of metal.
8. The heat dissipating device of a wind turbine generator set as defined in claim 3, wherein the rotation of the ventilating turbofan is driven by an unpowered wind ball or an axial flow fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122744816.3U CN216554228U (en) | 2021-11-10 | 2021-11-10 | Heat dissipation device of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122744816.3U CN216554228U (en) | 2021-11-10 | 2021-11-10 | Heat dissipation device of wind generating set |
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| Publication Number | Publication Date |
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| CN216554228U true CN216554228U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122744816.3U Active CN216554228U (en) | 2021-11-10 | 2021-11-10 | Heat dissipation device of wind generating set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117365860A (en) * | 2023-11-09 | 2024-01-09 | 沧州惠邦机电产品制造有限责任公司 | Engine transmission unit frame of wind power generator cabin |
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2021
- 2021-11-10 CN CN202122744816.3U patent/CN216554228U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117365860A (en) * | 2023-11-09 | 2024-01-09 | 沧州惠邦机电产品制造有限责任公司 | Engine transmission unit frame of wind power generator cabin |
| CN117365860B (en) * | 2023-11-09 | 2024-04-26 | 沧州惠邦机电产品制造有限责任公司 | Engine transmission unit frame of wind power generator cabin |
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