CN120027031A - Wind turbine cooling system and wind turbine - Google Patents

Abstract

The present invention relates to the field of wind power generation technology, and in particular to a heat dissipation system of a wind turbine generator set and a wind turbine generator set, including a fixed rod and a fan blade, etc.; the fan blade is rotatably connected to the fixed rod. The present invention realizes continuous interception of wind sand and dust by a rotating barrier net, and does not affect the heat dissipation of the generator, thereby improving the adaptability of the equipment. The barrier net contacts the inner wall of the fixed rod during rotation, and can scrape off the wind sand and dust attached to the barrier net, thereby achieving the self-cleaning effect of the equipment on the barrier net; by pushing the barrier net into the storage groove, the rectangular grooves on the front and rear sides of the fixed rod are free of any obstruction, thereby facilitating workers to maintain and observe the generator, and facilitating subsequent maintenance work of the workers; the generator is cooled by a fan, and the barrier net can also be cleaned by airflow recoil, and the sand and dust remaining on the barrier net are recoiled to the outside world, thereby improving the heat dissipation effect of the equipment and further improving the cleaning effect of the barrier net.

Description

Wind generating set cooling system and wind generating set

Technical Field

Most of wind driven generators are divided into a vertical shaft and a horizontal shaft, the vertical shaft wind driven generator is used for hiding a power generation structure in a rod body by leakage of fan blades, then the fan blades drive the power generation structure to generate power, the power generation structure is easy to generate heat during operation, the existing mode is used for carrying out airflow circulation by arranging a radiating hole on the rod body and additionally arranging an active radiating structure so as to take away the heat of the power generation structure.

Meanwhile, the power generation structure is hidden inside the rod body, so that heat dissipation can be affected, when a subsequent worker needs to maintain and observe the power generation structure, the whole rod body needs to be detached, the power generation structure can be leaked for maintenance and observation, and subsequent maintenance work is complicated and difficult.

Disclosure of Invention

In order to overcome the defects that the existing active heat dissipation mode is prone to cause blockage to influence the heat dissipation effect in a sand wind environment, the air flow in the rod body is slowly influenced by the power generation structure and the limited space of the rod body, so that the heat transfer benefit is poor, and meanwhile, the power generation structure in the rod body is hidden and difficult to maintain and observe by subsequent workers, the invention provides a wind generating set heat dissipation system and a wind generating set.

The technical scheme includes that the wind generating set radiating system and the wind generating set comprise a fixing rod, fan blades and a generator, the generator is arranged in the fixing rod, the fan blades are connected onto the fixing rod in a rotating mode, a rotating shaft of the fan blades is connected with the generator, the wind generating set radiating system further comprises a blocking net, sliding rails, first electric sliding blocks and an adjusting assembly, rectangular grooves communicated with the outside are formed in the front side and the rear side of the fixing rod, the blocking net for preventing wind and sand from eroding the generator is connected onto the fixing rod in a rotating mode, the sliding rails are arranged on the fixing rod, a plurality of first electric sliding blocks are connected onto the lower portion of the sliding rails in a sliding mode, all the first electric sliding blocks are connected with the blocking net in a detachable mode, and the adjusting assembly convenient for cleaning the blocking net is arranged in the fixing rod.

More preferably, the adjusting component comprises a filter screen and a fan, a wind speed sensor is arranged in the fixing rod, a plurality of first connecting holes are formed in the fixing rod, a plurality of second connecting holes are formed in the fixing rod, a plurality of air grooves are formed in the fixing rod, each first connecting hole and each second connecting hole are communicated with each air groove, one filter screen is fixedly connected to each air groove, and the fan for enhancing the heat dissipation effect of the generator is fixedly connected in the fixing rod.

The electric generator is characterized by further comprising a first blocking cover and a second electric sliding block, wherein a humidity sensor is arranged outside the fixing rod, a sliding groove is formed in the fixing rod, a plurality of second electric sliding blocks are connected to the sliding groove in a sliding mode, the upper sides of the second electric sliding blocks are fixedly connected with the first blocking cover for preventing rainwater from corroding the generator, and a blocking net is attached to the inner side of the first blocking cover.

More preferably, the device further comprises a guide cover, elastic cloth and one-way films, wherein the guide cover is connected in a sliding manner in the fixing rod, the elastic cloth for improving the cleaning effect of the blocking net is fixedly connected to the lower side of the guide cover, a plurality of holes are formed in the elastic cloth at equal intervals, a membrane is arranged in each hole, a plurality of one-way films are fixedly connected in the fixing rod, each one-way film is opened downwards, and each one-way film is located in the adjacent first connecting hole.

More preferably, the sand-stone blocking device also comprises a top plate, and a plurality of top plates for preventing the blocking net from blocking sand and stone are fixedly connected on the guide cover.

More preferably, the fixing rod is internally provided with a storage groove which is convenient for workers to maintain equipment, and the storage groove is positioned under the barrier net.

More preferably, a plurality of top beads are arranged on each top plate.

More preferably, the first shield is made of a material with high thermal conductivity.

More preferably, a wiper blade is provided on the upper side of the storage groove.

More preferably, the device also comprises a second baffle cover, and the outer surface of the fixed rod is fixedly connected with the second baffle cover for preventing rainwater from entering the device from the filter screen.

The invention has the advantages that the wind-blown sand dust is continuously intercepted by the rotating blocking net, meanwhile, the heat dissipation of the generator is not influenced, the adaptability of equipment is improved, the blocking net contacts with the inner wall of the fixed rod in the rotating process, the wind-blown sand and the dust attached to the blocking net can be scraped off, and the self-cleaning effect of the equipment on the blocking net is realized;

the blocking net is pushed into the storage groove, so that the rectangular grooves on the front side and the rear side of the fixing rod are free from shielding, further, maintenance and observation of the generator by workers are facilitated, and subsequent maintenance work of the workers is facilitated;

The generator is cooled by the fan, meanwhile, the blocking net can be reversely cleaned in an airflow recoil mode, sand and stone dust remained on the blocking net are reversely flushed to the outside, the cooling effect of equipment is improved, and meanwhile, the cleaning effect of the blocking net is further improved;

The rectangular grooves at the front side and the rear side of the fixed rod are covered by the first baffle cover, and then the baffle net and the generator are completely sealed by being matched with the fixed rod, so that rainwater cannot permeate and contact the generator, the generator is prevented from being corroded by the rainwater, and the protection capability of equipment is improved;

Outside rainwater is blocked through the second shielding cover, so that rainwater cannot permeate into the equipment from the filter screen, and the protection effect on the equipment is improved.

Drawings

FIG. 1 is a schematic diagram of a wind turbine generator system heat dissipation system and a wind turbine generator system perspective structure according to the present invention;

FIG. 2 is a cross-sectional view of a securing lever of the present invention;

FIG. 3 is a schematic perspective view of a first shield according to the present invention;

FIG. 4 is a schematic view of a combined three-dimensional structure of a fixed rod, a first baffle cover and a second electric slide block;

FIG. 5 is a schematic perspective view of the combination of the guide cover, top plate and stretch cloth of the present invention;

FIG. 6 is a cross-sectional view of a combination boot and stretch fabric of the present invention;

FIG. 7 is a schematic perspective view of a second shield according to the present invention;

fig. 8 is a cross-sectional view of a second shield of the present invention.

The reference number of the drawing is 1-dead lever, 1001-storage groove, 1002-air groove, 1003-first connecting hole, 1004-second connecting hole, 1005-chute, 2-flabellum, 3-separation net, 4-first baffle cover, 5-generator, 101-slide rail, 102-first electric slide block, 103-second electric slide block, 104-guide cover, 105-top plate, 106-elastic cloth, 107-filter screen, 108-fan, 109-unidirectional film, 201-second baffle cover.

Detailed Description

The technical solution is further described below with reference to specific embodiments, and it should be noted that words indicating orientations, such as up, down, left, right, etc., are used herein only for positions of the illustrated structure in the corresponding drawings. The reference numerals used for the components, such as first, second, etc., are used herein only to distinguish the described objects and do not have any sequential or technical meaning. The application includes both direct and indirect connections (couplings), unless specifically indicated.

Example 1

1-6, The wind generating set heat dissipation system and the wind generating set comprise a fixed rod 1, fan blades 2 and a generator 5, wherein the generator 5 is arranged in the fixed rod 1, the fan blades 2 are rotatably connected to the fixed rod 1, and a rotating shaft of the fan blades 2 is connected with the generator 5;

The electric blocking device comprises a blocking net 3, a sliding rail 101, first electric sliding blocks 102 and an adjusting component, wherein rectangular grooves communicated with the outside are formed in the front side and the rear side of a fixing rod 1, the blocking net 3 is rotatably connected to the fixing rod 1, the sliding rail 101 is arranged on the fixing rod 1, the two first electric sliding blocks 102 are connected to the lower side of the sliding rail 101 in a sliding mode, all the first electric sliding blocks 102 are detachably connected with the blocking net 3 together, and the adjusting component is arranged in the fixing rod 1.

The adjusting component comprises a filter screen 107 and a fan 108, a wind speed sensor is arranged in the fixed rod 1, a plurality of first connecting holes 1003 are formed in the fixed rod 1, a plurality of second connecting holes 1004 are formed in the fixed rod 1, a plurality of air grooves 1002 are formed in the fixed rod 1, each first connecting hole 1003 and each second connecting hole 1004 are communicated with each air groove 1002, a filter screen 107 is fixedly connected to each air groove 1002, and the fan 108 is fixedly connected in the fixed rod 1.

The electric fan is characterized by further comprising a first shielding cover 4 and a second electric sliding block 103, a humidity sensor is arranged outside the fixed rod 1, a sliding groove 1005 is formed in the fixed rod 1, the two second electric sliding blocks 103 are connected to the sliding groove 1005 in a sliding mode, the upper sides of the two second electric sliding blocks 103 are fixedly connected with the first shielding cover 4 together, and the shielding net 3 is attached to the inner side of the first shielding cover 4.

The device further comprises a guide cover 104, elastic cloth 106 and one-way films 109, the guide cover 104 is connected in a sliding mode to the fixing rod 1, the elastic cloth 106 is fixedly connected to the lower side of the guide cover 104, a plurality of holes are formed in the elastic cloth 106 at equal intervals, a membrane is arranged in each hole, a plurality of one-way films 109 are fixedly connected to the fixing rod 1, each one-way film 109 is opened downwards, and each one-way film 109 is located in the adjacent first connecting hole 1003.

The guide cover 104 is fixedly connected with two top plates 105.

A storage groove 1001 is formed in the fixing rod 1, and the storage groove 1001 is positioned right below the barrier net 3.

A plurality of top beads are provided on each top plate 105.

The first shield 4 is made of high thermal conductivity material.

A wiper blade is provided on the upper side of the storage groove 1001.

After the fixing rod 1 is firmly fixed on the ground through bolts, the fan blades 2 are blown to rotate by utilizing air flow at high altitude, when the fan blades 2 rotate, mechanical energy generated by the rotating shafts of the fan blades 2 is transmitted to the generator 5 through a transmission device, so that the generator 5 generates electricity, in the process, considering that heat is easy to generate under the continuous working state of the generator 5, the generator 5 is sleeved in the fixing rod 1 in the prior installation mode, and then a radiating hole is formed for radiating the generator 5 through an external exhaust structure, but the mode not only can cause the radiating hole to be blocked, but also can lead to slower heat transmission rate because of the air flow circulation in a shell, the shell of the generator 5 is complex and covers widely, therefore, in order to improve the radiating effect of equipment, the generator 5 is contacted with external air flow by forming rectangular grooves on the front side and the rear side of the fixing rod 1, the generator 5 contacted with the outside is blown by strong air flow outside, so that the heat generated by the generator 5 during operation is directly taken away from the rear side of the fixed rod 1, compared with the existing heat dissipation mode, the energy consumption of the equipment is reduced, meanwhile, the heat dissipation is not limited by the flow channel heat dissipation in the fixed rod 1, the rectangular grooves are formed in the front side and the rear side of the fixed rod 1, the outside air flow can directly blow to the generator 5, the outside air flow can directly act on all parts of the generator 5 by utilizing the circulation mode of the outside air flow, meanwhile, the air flow is not easy to be blocked by the generator 5, the heat dissipation effect of the equipment is improved, meanwhile, the heat dissipation effect of the equipment is improved by additionally arranging the blocking net 3 to intercept wind sand and dust when the generator 5 is applied to the northwest region with larger wind sand, the service life of the generator 5 is prolonged, and the wind sand and the dust are intercepted by the blocking net 3, the long-term use of the blocking net 3 can cause that the surface of the blocking net is blocked by wind sand dust, air flow is difficult to blow to the generator 5 through the blocking net 3, and then the radiating effect of the generator 5 is affected, therefore, based on the condition that the blocking net 3 is seen from top to bottom, the first electric sliding block 102 is driven to rotate clockwise on the sliding rail 101, and then the blocking net 3 is driven to rotate clockwise, and it is noted that part of the blocking net 3 in the initial state is hidden in the fixed rod 1 and is not contacted with the outside, so when the blocking net 3 rotates, the blocking net 3 leaks out from the area covered by the fixed rod 1, no wind sand dust adheres to the part, and when the blocking net 3 rotates out from the covered area, namely, the blocking net 3 rotates to the rectangular groove area formed by the fixed rod 1, wind sand dust in the outside can be continuously intercepted, at the moment, the air flow is not influenced to the generator 5 through the blocking net 3, and the adaptability of the equipment is improved, meanwhile, the blocking net 3 contacts with the inner wall of the fixed rod 1 in the rotating process, and the self-cleaning effect of the blocking net 3 can be realized by scraping wind sand and dust attached on the blocking net 3 through the fixed rod 1.

After the rectangular grooves are formed in the front side and the rear side of the fixing rod 1 and are communicated with the outside, when a subsequent worker needs to maintain and observe the generator 5, the storage groove 1001 is located right below the blocking net 3, the blocking net 3 can be detached from the first electric sliding block 102, the blocking net 3 is pushed into the storage groove 1001, the rectangular grooves in the front side and the rear side of the fixing rod 1 are free of shielding, further the worker is convenient to maintain and observe the generator 5, and subsequent maintenance work of the worker is facilitated.

In order to ensure that the generator 5 is cooled under the environment with slower wind speed, when the wind speed sensor in the fixed rod 1 detects that external air flow is weaker, the wind speed sensor sends an electric signal to control the fan 108 to rotate, so that the external air flow is pumped into the air tank 1002 through the filter screen 107, then the fan 108 is controlled to rotate under the action of the fan 108, the air is blown to the generator 5 from the first connecting hole 1003 and the second connecting hole 1004, and then the generator 5 is cooled, finally the air is discharged to the outside from the inner side of the blocking net 3, in the process, as the air flow is discharged to the outside from the inner side of the blocking net 3, the fan 108 is utilized to cool the generator 5, and meanwhile, the back-cleaning of the blocking net 3 can be further carried out, the residual sand dust on the blocking net 3 is reversely flushed to the outside, the device is improved, the heat dissipation effect of the device is improved, and when the wind speed sensor detects that the external air speed is larger, the fan 108 is controlled to stop rotating, the device is cooled through natural convection, meanwhile, the fan 108 is controlled to reverse in a timing way, so that the air enters into the rectangular groove 1003 on the front side and the rear side of the fixed rod 1 and then the filter screen 108 is blown into the filter screen 1001 from the inner side of the filter screen 1001, and then the filter screen 107 is prevented from being carried into the filter screen 107 through the filter screen 1001, and the filter screen 107 is prevented from being carried into the filter screen 107, and the dust is stored into the filter screen 107, and the dust is prevented from being carried into the filter screen 107, and the dust is stored from being stored into the dust groove through the filter screen 1001, and the dust is stored from the dust through the filter screen 1001.

When the weather is faced with wind and sand and the rainy scene, the meshes of the blocking net 3 are difficult to block rainwater penetration, so that the generator 5 is corroded by rainwater, therefore, when the humidity sensor outside the fixed rod 1 detects that the external humidity is overlarge, the generator 5 is prevented from being corroded by starting the second electric sliding block 103 to rotate anticlockwise on the sliding groove 1005 based on the condition that the external humidity is overlarge from top to bottom, the protection capability of equipment is improved, when the first blocking cover 4 rotates ninety degrees and then stops the second electric sliding block 103, the front side and the rear side of the fixed rod 1 are covered by the first blocking cover 4, and then the blocking net 3 and the generator 5 are completely closed by being matched with the fixed rod 1, and the heat generated by the generator 5 can be taken away by the flow of rainwater when the surface of the first blocking cover 4 is flowing, so that the generator 5 can be prevented from being corroded by the heat generated by the generator 5 when the rainwater cannot permeate and contact the generator 5, and the protection capability of equipment is improved, and when the temperature sensor detects that the external humidity is small, the heat dissipation effect is guaranteed by the second electric sliding block 103, and the equipment is continuously reset through the rotation of ninety degrees, and natural air flow is generated by the equipment.

In addition, when the fan 108 is used for actively radiating the heat of the generator 5, the air flow is easily discharged from the rectangular grooves on the front and rear sides of the fixed rod 1 after passing through the first connecting holes 1003 and the second connecting holes 1004, so that the air flow cannot completely cover the blocking net 3 and then blow to the blocking net 3, and the effect of backflushing the blocking net 3 is poor, therefore, when the fan 108 is used for radiating the heat, the unidirectional film 109 is additionally arranged on each first connecting hole 1003, and the unidirectional film 109 is only opened downwards, so that the air flow introduced upwards by the fan 108 cannot flow out from the first connecting holes 1003, then all the second connecting holes 1004 are covered by the elastic cloth 106, after the air is continuously poured into the elastic cloth 106 from the second connecting holes 1004, the elastic cloth 106 is gradually jacked up under the action of the air flow, so that the guide cover 104 is driven to move upwards, and when the elastic cloth 106 is unfolded to a limit, the air is continuously poured into the elastic cloth 106, and the film on the elastic cloth 106 is jacked up under the influence of the air pressure, so that the air is sprayed out from the holes on the elastic cloth 106, and the needs to be noted: the extreme unfolding height of the elastic cloth 106 is equal to the height of the barrier net 3, so that the ejected air flow can be uniformly sprayed to the barrier net 3 so as to cover the barrier net 3, thereby improving the cleaning effect of equipment on the barrier net 3, meanwhile, the electric generator 5 is covered under the state that the elastic cloth 106 is unfolded to the extreme, when the air flow is not ejected from the holes of the elastic cloth 106, under the limitation of the elastic cloth 106, the air flow flows upwards along the surface of the electric generator 5, then is ejected from the holes of the elastic cloth 106, the heat on the surface of the electric generator 5 is taken away by the air flow attached to the surface of the electric generator 5, and finally is discharged from the holes of the elastic cloth 106, further improving the heat dissipation effect of the equipment on the electric generator 5, and as the unidirectional film 109 is only opened downwards, when the fan 108 is reversed, the negative pressure on the lower side of the unidirectional film 109 enables the unidirectional film 109 to open downwards, so that the external air flow can normally pass through the first connecting hole 1003, and the reverse cleaning effect of the filter screen 107 is ensured.

In addition, in the process that the elastic cloth 106 drives the guide cover 104 to ascend, the guide cover 104 also synchronously drives the top plate 105 to move upwards, under the movement of the top plate 105, the top plate 105 extrudes the part where the top direction barrier net 3 leaks, so that sand and stones clamped in the barrier net 3 are separated from meshes of the barrier net 3 under the extrusion of the top plate 105, the influence of the clamped sand and stones on the normal rotation of the barrier net 3 is avoided, the adaptability of equipment is improved, and further, the meshes of the barrier net 3 are extruded by the top beads arranged on the top plate 105 in a targeted manner, and the cleaning effect of the top plate 105 on the sand and stones is improved.

Example 2

On the basis of the embodiment 1, as shown in fig. 1, 7 and 8, the device further comprises a second shielding cover 201, and the second shielding cover 201 is fixedly connected to the outer surface of the fixing rod 1.

When the scene of raining is met, the rainwater is easy to flow to the filter screen 107 along the surface of the fixed rod 1, and the rainwater is led to permeate the filter screen 107 into the equipment, so that the circuit inside the equipment is damaged, and in order to avoid the phenomenon, the filter screen 107 is shielded when raining through the second shielding cover 201, so that the rainwater is prevented from directly entering the fixed rod 1 through the filter screen 107, the water seepage inside the fixed rod 1 is avoided, and the protection effect of the equipment is improved.

It is to be understood that the above description is intended to be illustrative only and is not intended to be limiting. Those skilled in the art will appreciate variations of the present invention that are intended to be included within the scope of the claims herein.

Claims (10)

1. A wind turbine generator heat dissipation system and a wind turbine generator set, comprising a fixed rod (1), a fan blade (2) and a generator (5); the fixed rod (1) is provided with a generator (5); the fixed rod (1) is rotatably connected to the fan blade (2); the rotating shaft of the fan blade (2) is connected to the generator (5); the characteristics are: it also includes a barrier net (3), a slide rail (101), a first electric slider (102) and an adjustment component; the front and rear sides of the fixed rod (1) are both provided with rectangular grooves communicating with the outside; the fixed rod (1) is rotatably connected to the barrier net (3) for preventing wind and sand from eroding the generator (5); the fixed rod (1) is provided with a slide rail (101); a plurality of first electric sliders (102) are slidably connected to the lower side of the slide rail (101); all the first electric sliders (102) are detachably connected to the barrier net (3); and an adjustment component is provided in the fixed rod (1) for facilitating the cleaning of the barrier net (3). 2. A wind turbine generator heat dissipation system and a wind turbine generator set according to claim 1, characterized in that: the adjustment component includes a filter (107) and a fan (108); a wind speed sensor is arranged in the fixing rod (1); a plurality of first connection holes (1003) are opened in the fixing rod (1); a plurality of second connection holes (1004) are opened in the fixing rod (1); a plurality of air grooves (1002) are opened on the fixing rod (1); each of the first connection holes (1003) and the second connection holes (1004) are communicated with the air groove (1002); a filter (107) is fixedly connected to each air groove (1002); a fan (108) is fixedly connected in the fixing rod (1) to enhance the heat dissipation effect on the generator (5). 3. The heat dissipation system of a wind turbine generator set and a wind turbine generator set according to claim 2 are characterized in that: it also includes a first baffle (4) and a second electric slider (103); a humidity sensor is arranged outside the fixing rod (1); a slide groove (1005) is provided on the fixing rod (1); a plurality of second electric sliders (103) are slidably connected to the slide groove (1005); a first baffle (4) for preventing rainwater from eroding the generator (5) is fixedly connected to the upper side of the plurality of second electric sliders (103); and the barrier net (3) is fitted with the inner side of the first baffle (4). 4. The heat dissipation system of a wind turbine generator set and a wind turbine generator set according to claim 3 are characterized by: further comprising a guide cover (104), an elastic cloth (106) and a one-way membrane (109); the guide cover (104) is slidably connected inside the fixed rod (1); the elastic cloth (106) for improving the cleaning effect of the barrier net (3) is fixedly connected to the lower side of the guide cover (104); a plurality of holes are equidistantly provided on the elastic cloth (106), and a membrane is provided in each hole; a plurality of one-way membranes (109) are fixedly connected inside the fixed rod (1); each one-way membrane (109) is opened downward, and each one-way membrane (109) is located in an adjacent first connecting hole (1003). 5. The wind turbine generator heat dissipation system and wind turbine generator set according to claim 4, characterized in that: it also includes a top plate (105); a plurality of top plates (105) are fixedly connected to the guide cover (104) to prevent the barrier net (3) from getting stuck with sand and stones. 6. The wind turbine generator heat dissipation system and wind turbine generator set according to claim 5, characterized in that: a storage groove (1001) is provided in the fixing rod (1) for workers to maintain the equipment; the storage groove (1001) is located directly below the barrier net (3). 7. The wind turbine generator set heat dissipation system and the wind turbine generator set according to claim 5, characterized in that: a plurality of top beads are arranged on each top plate (105). 8. The wind turbine generator set heat dissipation system and the wind turbine generator set according to claim 7, characterized in that: the first shield (4) is made of a material with high thermal conductivity. 9. The wind turbine generator set heat dissipation system and the wind turbine generator set according to claim 6, characterized in that a scraper is provided on the upper side of the storage groove (1001). 10. The wind turbine generator heat dissipation system and wind turbine generator set according to claim 6, characterized in that: it also includes a second shield (201); the outer surface of the fixing rod (1) is fixedly connected with the second shield (201) for preventing rainwater from entering the interior of the device through the filter (107).