CN213235338U

CN213235338U - Wind power generation system

Info

Publication number: CN213235338U
Application number: CN202021742076.9U
Authority: CN
Inventors: 林志慧
Original assignee: Hebei Youma Communication Technology Co ltd
Current assignee: Hebei Youma Communication Technology Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-05-18
Anticipated expiration: 2030-08-19

Abstract

The utility model provides a wind power generation system, including installing in the aerogenerator at tower body top to and vary voltage unit, animal electricity unit and the transmission of electricity unit that sets for aerogenerator. The inside cavity of tower body and being formed with the inner chamber that link up to the tower body top, be fixed with the mounting bracket in the inner chamber, vary voltage unit, animal electricity unit and transmission of electricity unit all install on the mounting bracket. The side wall of the lower part of the tower body is provided with an air inlet unit, and outside air enters the inner cavity from the air inlet unit and can be discharged from the top of the tower body. The utility model discloses a wind power generation system has optimized wind power generation system's whole integrated configuration, does benefit to the festival of the system daily operation maintenance cost and falls.

Description

Wind power generation system

Technical Field

The utility model relates to a wind power generation technical field, in particular to wind power generation system.

Background

As a clean energy, wind power generation is more and more popular and is popular in the whole society. The traditional wind power generation basically adopts a wind power generator arranged on a high tower, and the generator is driven to generate power by the rotation of fan blades. Transformers, power transmission equipment and the like which are arranged for the generators are generally arranged on the ground, buildings generally need to be built for rain-proof and temperature reduction protection of the equipment such as the transformers, the power transmission equipment and the like, ventilation equipment is additionally arranged for the buildings, the overall investment is large, and the daily maintenance cost is high. Along with the popularization of wind power generation, the overall construction cost and the operation and maintenance cost of a wind power generation system are more and more important, and the integration optimization of the system and the saving of the operation and maintenance cost are always important research subjects in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a wind power generation system to optimize wind power generation system's whole integrated configuration, thereby do benefit to the saving of the system daily operation maintenance cost and fall.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a wind power generation system comprises a wind power generator arranged at the top of a tower body, and a voltage transformation unit, an electricity storage unit and a power transmission unit which are matched with the wind power generator;

the inside of the tower body is hollow, an inner cavity penetrating to the top of the tower body is formed, an installation frame is fixed in the inner cavity, and the voltage transformation unit, the animal power unit and the power transmission unit are all installed on the installation frame;

and an air inlet unit is arranged on the side wall of the lower part of the tower body, and outside air enters the inner cavity from the air inlet unit and can be discharged from the top of the tower body.

Further, along the direction of height of tower body, vary voltage unit, the electricity-storage unit, transmission of electricity unit from top to bottom arranges in proper order.

Further, the base of tower body is adorned admittedly on the cement base station of burying deeply in the ground, the unit of intaking is close to the base sets up, just the unit of intaking includes the ring a plurality of income wind gaps of the circumference interval equipartition of tower body.

Furthermore, a rain shield covering the upper part of the air inlet is arranged on the outer wall of the tower body.

Furthermore, an air guide pipe is arranged in the inner cavity and positioned below the power transmission unit, the bottom of the air guide pipe is communicated with the air inlet, and the air guide pipe is bent from the bottom of the air guide pipe and extends upwards so as to guide the air entering from the air inlet upwards.

Further, a motor body of the wind driven generator is fixedly arranged on a turntable, and the turntable can be freely and rotatably arranged on a top mounting plate of the tower body; an air outlet cover is constructed on the rotary disc, an air flow channel formed inside the air outlet cover is communicated with the inner cavity, and an air outlet of the air outlet cover faces one side of the guide plate of the wind driven generator.

Furthermore, the air outlet covers are symmetrically arranged on two sides of the left side and the right side of the motor body.

Further, the airflow channel is arranged in parallel to the axial direction of the motor body.

Further, the other end of the wind outlet housing is configured in a shape of a transition curved surface with respect to one end of the wind outlet.

Furthermore, a through hole which is communicated between the airflow channel and the inner cavity is formed in the rotary disc, and the air outlet cover is completely covered above the through hole.

Compared with the prior art, the utility model discloses following advantage has:

(1) wind power generation system, with aerogenerator's such as vary voltage unit, animal electricity unit and transmission of electricity unit corollary equipment install in the inner chamber of tower body, utilize the natural wind cooling of air current formation to the corollary equipment from bottom to top in the inner chamber, not only do benefit to the space that saves corollary equipment and occupy, and reducible ventilation equipment's input does benefit to the festival of wind power generation system daily operation maintenance cost and falls.

(2) The transformation unit, the animal electricity unit and the power transmission unit are sequentially arranged in the inner cavity from top to bottom, so that the power transmission line can be conveniently arranged, natural air flow in the inner cavity from bottom to top can sequentially pass through all supporting equipment, and a good cooling effect can be formed.

(3) The air inlet unit is arranged at the lower part of the tower body, the convection effect formed by rising of hot air in the inner cavity is utilized, the external air at the lower part of the tower body is drained to the inner cavity through the air inlets, and the air convection is better in overall balance through the uniform distribution of the plurality of air inlets, so that the air cooling effect of the matched equipment is favorably improved.

(4) The rain shield is additionally arranged at the air inlet, so that rainwater and the like can be prevented from entering the inner cavity in rainy and snowy weather, and the running safety of the electrical equipment can be enhanced.

(5) The air inlet unit is provided with the air guide pipe, so that air flow entering along the radial direction of the tower body can be guided to flow upwards along the axis of the tower body, the turbulence of the air flow in the inner cavity can be prevented, the stability of a convection state is facilitated, and the air flow in the inner cavity can be more smooth.

(6) Set up out the fan housing on the carousel, the air that will flow from the inner chamber top is buckled and is flowed towards one side of deflector, can make the air current direction of flow in the inner chamber unanimous basically with external wind direction, with the help of external wind speed, can form certain low atmospheric pressure region in the air outlet department of fan housing, thereby more do benefit to the drainage of inner chamber air current and discharge, do benefit to the promotion of inner chamber cooling air current velocity of flow, can make the forced air cooling effect to supporting equipment such as vary voltage unit, animal electricity unit, transmission of electricity unit better.

(7) The air outlet cover is symmetrically arranged, the space arrangement requirement of the motor body is well matched, and meanwhile, the effect of cooling the motor body can be achieved.

(8) The air flow channel in the air outlet cover is arranged along the axis parallel to the motor body, so that the drainage effect is better.

(9) The front end of the air outlet cover is in a transition shape of a curved surface chamfer, so that the air flow can be smoother.

(10) The complete shielding of the via holes is achieved by the air outlet cover, rainwater can be prevented from invading into the inner cavity from the via holes, and therefore the safe operation of matched equipment is facilitated.

Drawings

The accompanying drawings, which form a part of the present disclosure, are provided to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions thereof are provided to explain the present disclosure, wherein the related terms in the front, back, up, down, and the like are only used to represent relative positional relationships, and do not constitute an undue limitation of the present disclosure. In the drawings:

fig. 1 is a schematic overall structural diagram of a wind power generation system according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

fig. 4 is a schematic view of a partial three-dimensional structure of a wind turbine and an air outlet cover thereof according to an embodiment of the present invention;

description of reference numerals:

1-foundation, 2-cement base station, 201-fixed pile, 3-tower body, 30-inner cavity, 300-base, 301-fastening bolt, 302-mounting frame, 303-top mounting plate, 31-air inlet unit, 311-rain shield, 312-air inlet, 313-air guide pipe;

4-wind driven generator, 400-motor body, 401-fan blade, 402-guide plate, 403-rotary table, 404-bearing, 405-air outlet cover, 406-air outlet and 407-through hole;

5-transformation unit, 6-electricity storage unit and 7-power transmission unit.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, terms of orientation such as left, right, up, down, and the like are used in the illustrated state for convenience of description, and should not be construed as limiting the structure of the present invention.

The embodiment relates to a wind power generation system, which is used for carrying out integrated optimization on the overall configuration of the wind power generation system and is beneficial to reducing the daily operation and maintenance cost of the system. The wind power generation system comprises a wind power generator arranged at the top of a tower body, and a voltage transformation unit, an electricity storage unit and a power transmission unit which are matched with the wind power generator.

The inside of the tower body is hollow, an inner cavity penetrating to the top of the tower body is formed, an installation frame is fixed in the inner cavity, and the voltage transformation unit, the animal power unit and the power transmission unit are all installed on the installation frame; and an air inlet unit is arranged on the side wall of the lower part of the tower body, and outside air enters the inner cavity from the air inlet unit and can be discharged from the top of the tower body.

Based on the above general structural principles, the present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments. An exemplary structure of the wind power generation system of the present embodiment is shown in fig. 1, and mainly includes a tower body 3, a wind power generator 4, a voltage transformation unit 5, an electricity storage unit 6, and a power transmission unit 7. Wherein, the wind driven generator 4 is arranged at the top of the tower body 3; the tower body 3 is hollow, an inner cavity 30 penetrating to the top of the tower body 3 is formed, an installation frame 302 is fixed in the inner cavity 30, and the transformation unit 5, the animal electricity unit 6 and the power transmission unit 7 are all installed on the installation frame 302.

The tower body 3 can be made of iron materials and is of a cylindrical structure, and the upper part of the tower body is thinner than the lower part of the tower body and is similar to a cone shape. The bottom welding of tower body 3 has base 300, and the cement base platform 2 of tower body 3 buries deeply in ground 1 to pour the spud pile 201 that inserts the underground deeply in the lower part of cement base platform 2, base 300 passes through fastening bolt 301 fixed mounting on cement base platform 2.

As shown in fig. 1 and fig. 2, an air inlet unit 31 is disposed on a side wall of a lower portion of the tower body 3, and external air enters the inner cavity 30 from the air inlet unit 31 and can be discharged from a top of the tower body 3. Specifically, the air inlet unit 31 is disposed near the base 300 and includes a plurality of air inlets 312 circumferentially spaced and uniformly distributed around the tower body 3. The air inlet unit 31 is arranged at the lower part of the tower body 3, the convection effect formed by the rising of hot air in the inner cavity 30 is utilized, the external air at the lower part of the tower body 3 is drained to the inner cavity 30 through the air inlets 312, and the air convection is better in overall balance through the uniform distribution of the plurality of air inlets 312, so that the air cooling effect of the matched equipment is improved.

In order to prevent rain water and the like from entering the inner cavity 30 in rainy and snowy weather, a rain shield 311 covering the air inlet 312 is arranged on the outer wall of the tower body 3 so as to enhance the operation safety of the electrical equipment. Meanwhile, an air guide pipe 313 located below the power transmission unit 7 is arranged in the inner cavity 30, the bottom of the air guide pipe 313 is communicated with the air inlet 312, and the air guide pipe 313 is bent from the bottom of the air guide pipe 313 and extends upwards so as to guide the air entering from the air inlet 312 upwards. The air guide pipe 313 is arranged for the air inlet unit 31, so that the airflow entering along the radial direction of the tower body 3 can be guided to flow upwards along the axis of the tower body 3, the turbulence of the airflow in the inner cavity 30 can be prevented, the stability of the convection state is facilitated, and the airflow in the inner cavity 30 can flow more smoothly.

As shown in fig. 1 and fig. 3 and 4, the equipment for the wind turbine 4 includes a voltage transformation unit 5, an electricity storage unit 6, a power transmission unit 7, and the like, wherein the voltage transformation unit 5 transforms the power generated by the wind turbine 4 and transmits the transformed power to the electricity storage unit 6 or the power transmission unit 7, the electricity storage unit 6 stores the surplus power, and the power transmission unit 7 transmits the power generated by the system to the outside. With regard to the arrangement of the voltage transforming unit 5, the electricity storage unit 6 and the electricity transmission unit 7, it is preferable that the voltage transforming unit 5, the electricity storage unit 6 and the electricity transmission unit 7 are arranged in order from top to bottom in the height direction of the tower body 3. Due to the arrangement, the power transmission line can be conveniently arranged, natural airflow in the inner cavity 30 from bottom to top can sequentially pass through all matched equipment, and a good cooling effect can be formed.

The wind driven generator 4 comprises a fan blade 401, a motor body 400 and a guide plate 402, wherein the fan blade 401 rotates towards the wind direction to drive the motor body 400 to rotate for power generation, and the guide plate 402 can enable the wind driven generator 4 to rotate so that the fan blade 401 always keeps the direction facing the wind. Specifically, the motor body 400 of the wind turbine 4 is fixedly mounted on the turntable 403, the turntable 403 is rotatably mounted on the top mounting plate 303 of the tower body 3, and the bearing 404 is mounted between the turntable 403 and the top mounting plate 303, so that the resistance to the free rotation of the wind turbine 4 is small. As shown in fig. 3 and fig. 4, in order to improve the air cooling effect on the matching devices such as the transformer unit 5, the electricity storage unit 6, and the power transmission unit 7, an air outlet cover 405 is configured on the turntable 403, an air flow channel formed inside the air outlet cover 405 is communicated with the inner cavity 30, and an air outlet 406 of the air outlet cover 405 faces to the side of the guide plate 402 of the wind driven generator 4. Set up out fan housing 405 on carousel 403, the air that will flow from the inner chamber 30 top is buckled and is flowed out towards one side of deflector 402, can make the air current direction of outflow in the inner chamber 30 unanimous basically with external wind direction, with the help of external wind speed, can form certain low atmospheric pressure region in the air outlet 406 department of going out fan housing 405 to more do benefit to the drainage of air current in the inner chamber 30 and discharge, do benefit to the promotion of inner chamber 30 cooling air current velocity.

Preferably, two air outlet housings 405 are symmetrically arranged, and the two air outlet housings 405 are respectively arranged at the left side and the right side of the motor body 400. Thus, the space arrangement requirement of the motor body 400 can be well matched, and the cooling effect on the motor body 400 can be achieved. The airflow channel in the air outlet cover 405 is arranged in parallel to the axial direction of the motor body 400, so that the effect of guiding the air through the river is better. Meanwhile, the other end of the wind outlet housing 405 is configured in a shape of a transition curved surface with respect to the one end of the wind outlet 406, so that the flow of the air current is smoother.

In addition, because the turntable 403 is provided with the through hole 407 which is communicated between the airflow channel and the inner cavity 30, in order to prevent rainwater from invading into the inner cavity 30 from the through hole 407, the air outlet cover 405 is constructed to be capable of completely covering the shape and size of the through hole 407, and the through hole 407 is completely covered by the air outlet cover 405, so that the safe operation of the corollary equipment is facilitated.

In the wind power generation system of the embodiment, the matching equipment of the wind power generator 4, such as the transformation unit 5, the animal power unit 6 and the power transmission unit 7, is arranged in the inner cavity 30 of the tower body 3, and natural wind cooling of the matching equipment is formed by utilizing the airflow from bottom to top in the inner cavity 30, so that the space occupation of the matching equipment is saved, the investment of ventilation equipment is reduced, and the daily operation and maintenance cost of the wind power generation system is saved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind power generation system comprises a wind power generator (4) arranged at the top of a tower body (3), and a transformation unit (5), an electricity storage unit (6) and a power transmission unit (7) which are matched with the wind power generator (4); the method is characterized in that:

the tower body (3) is hollow, an inner cavity (30) penetrating to the top of the tower body (3) is formed, an installation frame (302) is fixed in the inner cavity (30), and the transformation unit (5), the animal electricity unit (6) and the power transmission unit (7) are all installed on the installation frame (302);

and an air inlet unit (31) is arranged on the side wall of the lower part of the tower body (3), and external air enters the inner cavity (30) from the air inlet unit (31) and can be discharged from the top of the tower body (3).

2. A wind energy generation system according to claim 1, wherein: along the height direction of tower body (3), vary voltage unit (5), animal electricity unit (6), transmission of electricity unit (7) from top to bottom arranges in proper order.

3. A wind energy generation system according to claim 2, wherein: the base (300) of tower body (3) is adorned admittedly on the cement base station (2) of burying deeply in ground (1), it is close to go into wind unit (31) base (300) set up, just it includes the ring to go into wind unit (31) a plurality of income wind gaps (312) of circumference interval equipartition of tower body (3).

4. A wind energy generation system according to claim 3, wherein: and a rain shield (311) which is covered above the air inlet (312) is arranged on the outer wall of the tower body (3).

5. A wind energy generation system according to claim 4, wherein: an air guide pipe (313) positioned below the power transmission unit (7) is arranged in the inner cavity (30), the bottom of the air guide pipe (313) is communicated with the air inlet (312), and the air guide pipe (313) is bent from the bottom of the air guide pipe and extends upwards so as to guide the air entering from the air inlet (312) upwards.

6. A wind energy power generation system according to any one of claims 1-5, wherein: a motor body (400) of the wind driven generator (4) is fixedly arranged on a turntable (403), and the turntable (403) can be freely and rotatably arranged on a top mounting plate (303) of the tower body (3); an air outlet cover (405) is constructed on the rotary disc (403), an air flow channel formed inside the air outlet cover (405) is communicated with the inner cavity (30), and an air outlet (406) of the air outlet cover (405) faces one side of a guide plate (402) of the wind driven generator (4).

7. A wind energy generation system according to claim 6, wherein: the air outlet covers (405) are symmetrically arranged on two sides of the left side and the right side of the motor body (400).

8. A wind energy generation system according to claim 7, wherein: the airflow channel is arranged in parallel to the axial direction of the motor body (400).

9. A wind energy generation system according to claim 8, wherein: the other end of the wind outlet housing (405) is configured in the shape of a transition curve relative to the one end of the wind outlet (406).

10. A wind energy generation system according to claim 9, wherein: through holes (407) communicated between the airflow channel and the inner cavity (30) are formed in the rotary disc (403), and the air outlet cover (405) is completely covered above the through holes (407).