CN216562681U - Transformer structure of wind power generation system - Google Patents

Abstract

The utility model discloses a transformer structure of a wind power generation system, which comprises a tower cylinder and a plurality of transformers, wherein the transformers are uniformly distributed on the periphery of the outer wall of the tower cylinder, each transformer comprises a main body, radiator groups arranged at two ends of the main body, and an insulator, a sleeve and a first flange which are arranged on one side surface of the main body, a second flange and a through hole for inserting the insulator and the sleeve are arranged on the tower cylinder, a sealing ring is arranged between the first flange and the second flange, and the first flange is matched with the second flange, so that good sealing performance inside and outside the tower cylinder is ensured, and the practicability is stronger.

Description

Transformer structure of wind power generation system

Technical Field

The utility model relates to the technical field of wind driven generators, in particular to a transformer structure of a wind power generation system.

Background

In the wind power generation system, be provided with the fan, support the tower section of thick bamboo and the transformer of fan, wherein the transformer place has following several: firstly, a transformer is placed near the lower part of a tower drum, a cable which emits low-voltage electricity by a transmission fan passes through the tower drum underground and then enters the transformer, and the scheme needs a very long cable and has large transmission electric energy loss; secondly, the transformer is placed on the top of the tower, and the scheme is troublesome to install and maintain; thirdly, the transformer is placed inside the lower part of the tower barrel, the heat dissipation requirement of the transformer is high, and once the transformer breaks down, the maintenance is very troublesome; and fourthly, the transformer is leaned beside the tower barrel, and the high-low voltage sleeve of the transformer extends into the tower barrel.

SUMMERY OF THE UTILITY MODEL

In view of the defects in the prior art, the utility model provides a transformer structure of a wind power generation system, which enables the inside and the outside of a tower barrel to achieve a good sealing effect under the condition that the positions of a transformer and the tower barrel are relatively fixed.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides a wind power generation system's transformer structure, includes a tower section of thick bamboo and transformer, two are no less than to the quantity of transformer, transformer evenly distributed is in the outer wall periphery of a tower section of thick bamboo, the transformer includes the main part and sets up insulator, sleeve pipe and first flange on a main part side, be equipped with the second flange on the tower section of thick bamboo and be used for supplying the insulator with bushing-in's through-hole, first flange with the second flange cooperatees, first flange with be equipped with the sealing washer between the second flange.

Furthermore, the outer wall of the tower barrel is provided with a supporting frame, and when the transformer is fixed on the outer wall of the tower barrel, the bottom of the transformer is fixed on the supporting frame.

Further, the transformer further comprises radiator groups, and the radiator groups are arranged at two ends of the main body.

Further, a cooling fan is arranged below the radiator group.

Further, the insulator and the bushing are not disposed on the same horizontal line.

Further, the sealing surface of the first flange is a convex surface or a plane surface, the sealing surface of the second flange is a concave surface, and the sealing ring is arranged in the concave surface.

Furthermore, a high-voltage switch cabinet is arranged in the tower tube, the transformer further comprises a high-voltage winding, and a lead-out wire of the high-voltage winding is connected with the high-voltage switch cabinet through the insulator.

Further, the transformer is oil-immersed transformer, the top of main part is equipped with the oil tank cap, the top of oil tank cap sets up the oil conservator, one side of oil conservator is equipped with the accessory case, the position that passes accessory tank wall or tower section of thick bamboo wall of signal line in the accessory case is installed the glan head.

Furthermore, the sealing ring adopts a sealing material containing asbestos.

Further, the first flange and the second flange are fixed by bolts.

The utility model has the beneficial effects that:

the transformer comprises a tower drum and a plurality of transformers uniformly distributed on the periphery of the outer wall of the tower drum, wherein the transformer comprises a main body, radiator groups arranged at two ends of the main body, and an insulator, a sleeve and a first flange which are arranged on one side surface of the main body, a second flange and a through hole for inserting the insulator and the sleeve are arranged on the tower drum, a sealing ring is arranged between the first flange and the second flange, and the first flange is matched with the second flange, so that good sealing performance inside and outside the tower drum is ensured, and the practicability is stronger.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic diagram of a transformer according to the present invention;

FIG. 4 is a second schematic diagram of the transformer of the present invention;

FIG. 5 is a schematic structural view of a tower according to the present invention;

FIG. 6 is a second schematic structural view of a tower according to the present invention;

FIG. 7 is a schematic view of the transformer of the present invention mounted on one of the towers;

FIG. 8 is a second schematic view of the transformer of the present invention mounted on a tower;

FIG. 9 is a schematic view of the construction of the flange of the present invention;

in the figure:

100. a tower drum; 101. a through hole; 102. a second flange; 103. a concave surface; 104. a support frame; 105. a Glan head;

200. a transformer; 201. a main body; 202. a radiator group; 203. an insulator; 204. a sleeve; 205. a first flange; 206. an oil conservator; 207. a convex surface; 208. a supporting seat; 209. an accessory case; 210. a cooling fan;

300. and (5) sealing rings.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly understood, the following description will be made with reference to the accompanying drawings and embodiments. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

As shown in fig. 1-2, a transformer 200 structure of a wind power generation system includes a tower 100 and a plurality of transformers 200, wherein the plurality of transformers 200 are distributed around an outer wall of the tower 100 and have good heat dissipation performance, the tower 100 is circular, and the plurality of transformers 200 are disposed on a circular edge of the tower 100. The number of the transformers 200 should be no less than two, and may be two, three or four, in order to ensure that the outer wall of the tower barrel 100 is uniformly stressed, the transformers 200 should be uniformly distributed on the outer wall of the tower barrel 100, and the intervals between adjacent transformers 200 should be the same.

As shown in fig. 3, the transformer 200 is an oil-immersed transformer 200, and includes a main body 201, heat sink sets 202 disposed at two ends of the main body 201, and an insulator 203 and a bushing 204 disposed on one side of the main body 201.

Specifically, an oil storage cabinet 206 is arranged on an oil tank cover above the main body 201, a pressure gauge, a gas relay and an oil level gauge are arranged in the oil storage cabinet 206, an oil drain plug is arranged at the top end of the oil storage cabinet 206, an accessory box 209 is arranged on one side of the oil storage cabinet 206, all or part of accessories of the main body 201 are arranged in the accessory box 209, a gram head 105 is arranged at a position, which penetrates through the wall of the accessory box 209 and/or the wall of the tower barrel 100, of a signal line in the accessory box 209, sealing is ensured between the accessory box 209 and the outside air so as to reduce corrosion of the accessories, wherein the gas relay is a main protection device of the transformer 200, and when a fault occurs in the transformer 200, a communication signal or a tripping circuit is connected under the action of generated gas or oil flow, so that related devices send alarm signals or the transformer 200 is cut off from a power grid, and the effect of protecting the transformer 200 is achieved.

As shown in fig. 4, the heat sink set 202 is composed of a plurality of heat sinks, and the present embodiment includes four heat sink sets 202, the heat sinks are vertically arranged along the length direction of the main body 201, so as to reduce the width of the transformer 200 and reduce the blockage of the transformer 200 to the channel, of course, in order to improve the heat dissipation effect of the heat sink set 202, the bottom end of the heat sink set 202 is provided with the cooling fan 210, and under the condition that the effective heat dissipation effect is ensured, the cooling fan 210 is adopted to reduce the heat dissipation area and the weight of the transformer 200.

The insulators 203 are high-voltage leading-out devices of the transformer 200, and in the embodiment, the number of the insulators 203 is two or more, and the insulators are arranged up and down; the bushing 204 is a low-voltage lead-out device of the transformer 200, the high-voltage winding and low-voltage winding lead-out wires of the transformer 200 must pass through the insulator 203 and the bushing 204 to be insulated from each other and from the casing of the transformer 200, and the insulator 203 and the bushing 204 also play a role in fixing the lead-out wires. In this embodiment, the number of the bushings 204 is also two or more for connecting the low voltage cables. In this embodiment, the insulators 203 are not disposed on the same horizontal line, the sleeves 204 are not disposed on the same horizontal line, and meanwhile, the insulators 203 and the sleeves 204 are not disposed on the same horizontal line, so as to prevent the tower drum 100 from being simultaneously provided with the through holes 101 on the same horizontal line, and reduce the influence of the opening on the bearing capacity of the tower drum 100.

Correspondingly, as shown in fig. 5 to 6, through holes 101 for inserting the insulator 203 and the bushing 204 are formed in the tower drum 100, the size and the number of the through holes 101 correspond to the size and the number of the insulator 203 and the bushing 204, it should be noted that a high voltage switch cabinet is disposed in the tower drum 100, the transformer 200 includes a high voltage winding, an outgoing line of the high voltage winding is connected to the high voltage switch cabinet through the insulator 203, correspondingly, the transformer 200 includes a low voltage winding, the low voltage switch cabinet may or may not be disposed in the tower drum 100, when the low voltage switch cabinet is disposed in the tower drum 100, the outgoing line of the low voltage winding is connected to the low voltage switch cabinet through the bushing 204, and when the low voltage switch cabinet is not disposed in the tower drum 100, the outgoing line of the low voltage winding is directly connected to the frequency converter in the tower drum 100 through the bushing 204.

During actual installation, in addition to inserting the insulator 203 and the sleeve 204 into the tower 100, some secondary wires (e.g., communication wires) need to pass through the wall of the tower 100 and enter the tower 100. to ensure the sealing performance of the tower 100, the tower 100 is sealed by the glan head 105 at the position where the communication wire hole is formed.

As shown in fig. 7-9, the transformer 200 is fixed with a first flange 205 on the side where the insulator 203 and the casing 204 are disposed, and correspondingly, the outer wall of the tower 100 is provided with a second flange 102 matching with the first flange 205, the sealing surface of the first flange 205 is a convex surface 207 or a flat surface, the sealing surface of the second flange 102 is a concave surface 103, and a sealing ring 300 is disposed between the first flange 205 and the second flange 102. When the sealing surface of the first flange 205 is a convex surface 207, the first flange 205 and the second flange 102 are sealed by a concave-convex surface 207, and the sealing ring 300 is disposed in the concave surface 103, preferably, the sealing ring 300 is made of asbestos-containing sealing material, and the sealing effect is better.

The outer wall of tower tube 100 is provided with support frame 104, support frame 104 is used for fixing and supporting transformer 200, and support frame 104 preferably adopts a triangular frame, and the steadiness is stronger, and the quantity of support frame 104 should be the same as the quantity of transformer 200, and when transformer 200 is fixed on the outer wall of tower tube 100, the bottom of transformer 200 is fixed on support frame 104. Preferably, the bottom end of the transformer 200 is provided with a support base 208, and the support base 208 is fixed on the support frame 104 by bolts. Because transformer 200 is whole heavier, it is more difficult to install, therefore, in order to facilitate placing and installing of transformer 200, supporting seat 208 can slide along supporting frame 104, until moving to the outer wall of tower section of thick bamboo 100, at this moment, insulator 203 and sleeve pipe 204 on transformer 200 just aim at through-hole 101 on tower section of thick bamboo 100, insulator 203 and sleeve pipe 204 pass through-hole 101 and get into inside tower section of thick bamboo 100, first flange 205 contacts second flange 102, fix first flange 205 and second flange 102 through the bolt, under the condition that transformer 200 and tower section of thick bamboo 100 are relatively fixed, guarantee that tower section of thick bamboo 100 has good sealed effect inside and outside, the practicality is stronger.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a wind power generation system's transformer structure, its characterized in that, includes a tower section of thick bamboo and transformer, two are no less than to the quantity of transformer, transformer evenly distributed is in the outer wall periphery of a tower section of thick bamboo, the transformer includes the main part and sets up insulator, sleeve pipe and first flange on a main part side, be equipped with the second flange on the tower section of thick bamboo and be used for supplying the insulator with bushing-in's through-hole, first flange with the second flange cooperatees, first flange with be equipped with the sealing washer between the second flange.

2. The transformer structure of claim 1, wherein a support frame is disposed on the outer wall of the tower, and when the transformer is fixed on the outer wall of the tower, the bottom of the transformer is fixed on the support frame.

3. The transformer structure of a wind power system according to claim 1, wherein said transformer further comprises a heat sink set disposed at both ends of said main body.

4. A transformer structure for a wind power system according to claim 3, characterized in that a cooling fan is arranged below said set of radiators.

5. The transformer structure of a wind power system according to claim 1, wherein said insulator and said bushing are not disposed on the same horizontal line.

6. The transformer structure of claim 1, wherein the sealing surface of the first flange is convex or flat, the sealing surface of the second flange is concave, and the sealing ring is disposed in the concave surface.

7. The transformer structure of claim 1, wherein a high voltage switch cabinet is disposed in the tower, the transformer further comprises a high voltage winding, and an outgoing line of the high voltage winding is connected to the high voltage switch cabinet through the insulator.

8. The transformer structure of claim 1, wherein the transformer is an oil-immersed transformer, an oil tank cover is disposed above the main body, an oil conservator is disposed on a top end of the oil tank cover, an accessory box is disposed on one side of the oil conservator, and a glan head is disposed on a signal line in the accessory box at a position passing through an accessory box wall or a tower wall.

9. The transformer structure of a wind power system according to claim 1, wherein said sealing ring is made of a sealing material containing asbestos.

10. The transformer structure of a wind power system according to claim 1, wherein said first flange and said second flange are fixed by bolts.

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