CN213953821U

CN213953821U - Cooling device for wind power generation

Info

Publication number: CN213953821U
Application number: CN202120016070.1U
Authority: CN
Inventors: 申秘蔓
Original assignee: Institute of Information Technology of GUET
Current assignee: Institute of Information Technology of GUET
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-08-13
Anticipated expiration: 2031-01-05

Abstract

The utility model discloses a cooling device for wind power generation, which comprises an inner shell, a wind blade in transmission connection with the front end of the inner shell, and a tail wing in connection with the rear end of the inner shell; the outer surface of the inner shell is fixedly connected with a plurality of radiating fins, the inner shell is arranged in the exchange shell, and a space between the exchange shell and the inner shell forms an exchange cavity; the surface of the exchange shell is provided with a plurality of through exchange ports, an arc-shaped wind shield is fixed outside the exchange ports, the side edge of the wind shield is fixed on the exchange shell in the direction of the exchange ports close to the front end of the inner shell, and the wind shield completely covers the exchange ports; the front end of the exchange shell is sealed with the inner shell, and the rear end of the exchange shell is opposite to the tail wing and is an annular open air return cover; an open air collecting cover is arranged on the outer surface of the front end of the exchange shell and is connected with the drainage arc through a diversion shell; the wind collecting cover, the diversion shell and the drainage arc have non-contact spaces with the outer surface of the exchange shell and penetrate through the air collecting cover, the diversion shell and the drainage arc from front to back. The advantages are that: the generator cooling device has the advantages that various structures are utilized to be matched with strong wind, and the problem of cooling the generator is solved ingeniously.

Description

Cooling device for wind power generation

Technical Field

The utility model relates to a aerogenerator cooling field, concretely relates to heat sink for wind power generation.

Background

Wind power generation is widely used as a new energy power generation method. At present, the structure of wind power generation is mostly the same. The front end of the windmill is provided with blades, and the blades are directly connected with a rotating shaft of the generator. And a rear wing is connected to the rear end in order to maintain the stability and wind direction of the windmill.

The wind power generation equipment with the structure has problems in use, such as long-time operation of the generator, high heat generation, heating of a plurality of electrical equipment and the like. High temperatures can lead to impaired generator life over time.

SUMMERY OF THE UTILITY MODEL

In order to solve the high problem of high altitude aerogenerator operating temperature, the utility model provides a heat sink for wind power generation.

In order to achieve the above object, the utility model adopts the following technical scheme:

a cooling device for wind power generation comprises an inner shell for placing a generator, a wind blade in transmission connection with the front end of the inner shell, and a tail wing in connection with the rear end of the inner shell;

the outer surface of the inner shell is fixedly connected with a plurality of radiating fins, the inner shell is arranged in the exchange shell, and a space between the exchange shell and the inner shell forms an exchange cavity;

the surface of the exchange shell is provided with a plurality of through exchange ports, an arc-shaped wind shielding cover is fixed outside the exchange ports, the side edge of the wind shielding cover is fixed on the exchange shell in the direction of the exchange ports close to the front end of the inner shell, and the wind shielding cover completely covers the exchange ports;

the front end of the exchange shell is sealed with the inner shell, and the rear end of the exchange shell is opposite to the tail wing and is an annular open air return cover;

an open air collecting cover is arranged on the outer surface of the front end of the exchange shell and is connected with the drainage arc through a diversion shell;

the wind collecting cover, the diversion shell and the drainage arc have non-contact spaces with the outer surface of the exchange shell and penetrate through the air collecting cover, the diversion shell and the drainage arc from front to back.

Furthermore, the wind-collecting cover is of a horn mouth structure.

Furthermore, the arc-shaped track of the drainage arc is consistent with the outer contour of the air return cover.

Further, the arrangement of the radiating fins is in annular interval arrangement.

Further, the arrangement track of the radiating fins is as follows: the front end and the rear end of the inner shell are arranged in a straight line.

Further, the arrangement track of the radiating fins is as follows: the inner shell is spirally arranged from the front end to the rear end of the inner shell.

Compared with the prior art, the utility model discloses following beneficial effect has: utilize multiple structure in the environment of many winds in cooperation high altitude, utilize bernoulli's principle, the ingenious purpose for the generator cooling of solving to whole device is because all mechanical structure, compares the method of general fan cooling, has better practicality and energy-conservation nature.

Drawings

Fig. 1 is a schematic structural diagram of the utility model.

In the figure, 11 wind collecting covers, 12 guide shells, 13 guide arcs, 21 exchange shells, 22 exchange ports, 23 exchange cavities, 24 wind shielding covers, 25 return wind covers, 31 inner shells, 32 radiating fins, 41 wind blades and 42 tail wings.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1, a cooling device for wind power generation comprises an inner shell 31 for placing a generator, a wind blade 41 in transmission connection with the front end of the inner shell 31, and a tail wing 42 connected with the rear end of the inner shell 31. Wind energy is used to cause the wind blades 41 to rotate the generator within the inner shell 31. The outer surface of the inner shell 31 is fixedly connected with a plurality of radiating fins 32, the inner shell 31 is arranged in the exchange shell 21, and the space between the exchange shell 21 and the inner shell 31 forms an exchange cavity 23. When the heat of the generator is high, the heat can be released through the heat dissipation fins 32, and the heat dissipation fins 32 can be made of copper in order to prevent corrosion. Further, the arrangement of the heat dissipation fins 32 is an annular interval arrangement. The arrangement of the heat dissipation fins 32 may be: the heat dissipation fins 32 are arranged in a straight line from the front end to the rear end of the inner case 31, and the arrangement locus of the heat dissipation fins is: arranged spirally from the front end to the rear end of the inner shell 31.

The surface of the exchange shell 21 is provided with a plurality of through exchange ports 22, an arc-shaped wind shielding cover 24 is fixed outside the exchange ports 22, the side edge of the wind shielding cover 24 is fixed on the exchange shell 21 in the direction of the exchange ports 22 close to the front end of the inner shell, and the wind shielding cover 24 completely covers the exchange ports 22; in order to realize the exchange of air flows, the front end of the exchange shell 21 is sealed with the inner shell 31, and the rear end of the exchange shell is provided with an annular open air return cover 25 relative to the tail wing 42; an open air collecting cover 11 is arranged on the outer surface of the front end of the exchange shell 21, the air collecting cover 11 is connected with a flow guiding arc 13 through a flow guiding shell 12, and further, the arc-shaped track of the flow guiding arc 13 is consistent with the outer contour of the air return cover 25. The wind collecting cover 11, the guide shell 12 and the guide arc 13 have a non-contact space with the outer surface of the exchange shell 21 and penetrate through the exchange shell front and back. Further, the wind collecting cover 11 is of a bell mouth structure. Further, the wind collecting cover 11 is of a bell mouth structure.

The utility model discloses a theory of operation is: when the utility model is used, after the tail wing 42 selects the wind direction, the wind blade 41 and the wind collecting cover 11 can be always towards the direction of the wind. As the heat of the generator becomes higher, the temperature of the heat sink 32 also becomes higher. Due to the high wind speed of the wind collecting cover 11, the air flow speed between the diversion shell 12 and the exchange shell 21 is far higher than the normal wind speed. According to the bernoulli principle, the air pressure between the diversion casing 12 and the exchange casing 21 is very low, and the high temperature in the exchange casing 21 can be sucked out from the exchange port 22 by using the negative pressure, and the tail residual air can flow back to the space between the inner casing 31 and the exchange casing 21 due to the function of the air return cover 25. Its function is not only to supplement the negative pressure caused by the overflow of air, but also to introduce low-temperature air to cool the heat sink 32.

The utility model discloses in, return air cover 25 is the inner circle of setting at drainage arc 13, and such benefit is: when high air flow exits the pilot arc 13, a negative pressure condition is created in the center of the pilot arc 13. This negative pressure will cause the temperature in the core to be lower. While the low temperature airflow drawn by the return air hood 25 from the negative pressure zone is more conducive to temperature reduction.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a heat sink for wind power generation which characterized in that: comprises an inner shell (31) for placing a generator, a wind blade (41) in transmission connection with the front end of the inner shell (31), and a tail wing (42) connected with the rear end of the inner shell (31);

the outer surface of the inner shell (31) is fixedly connected with a plurality of radiating fins (32), the inner shell (31) is arranged in the exchange shell (21), and a space between the exchange shell (21) and the inner shell (31) forms an exchange cavity (23);

the surface of the exchange shell (21) is provided with a plurality of through exchange ports (22), an arc-shaped wind shielding cover (24) is fixed outside the exchange ports (22), the side edge of the wind shielding cover (24) is fixed on the exchange shell (21) of the exchange ports (22) close to the front end direction of the inner shell, and the wind shielding cover (24) completely covers the exchange ports (22);

the front end of the exchange shell (21) is sealed with the inner shell (31), and the rear end of the exchange shell is opposite to the tail wing (42) and is an annular open air return cover (25);

an open air collecting cover (11) is arranged on the outer surface of the front end of the exchange shell (21), and the air collecting cover (11) is connected with the flow guide arc (13) through a flow guide shell (12);

the wind collecting cover (11), the guide shell (12), the guide arc (13) and the outer surface of the exchange shell (21) are provided with non-contact spaces which penetrate through the front and the back.

2. The cooling device for wind power generation according to claim 1, wherein: the wind collecting cover (11) is of a horn mouth structure.

3. The cooling device for wind power generation according to claim 1, wherein: the arc-shaped track of the drainage arc (13) is consistent with the outer contour of the air return cover (25).

4. The cooling device for wind power generation according to claim 1, wherein: the arrangement of the radiating fins (32) is in annular interval arrangement.

5. The cooling device for wind power generation according to claim 1, wherein: the arrangement tracks of the radiating fins (32) are as follows: are arranged in a straight line from the front end to the rear end of the inner shell (31).

6. The cooling device for wind power generation according to claim 1, wherein: the arrangement tracks of the radiating fins (32) are as follows: is spirally arranged from the front end to the rear end of the inner shell (31).