CN219458475U - Box transformer structure of wind power plant - Google Patents

Abstract

The application discloses a wind power plant box transformer structure, wherein a box transformer foundation is arranged above a fan foundation by adopting a prefabricated structure and is close to a fan tower; the wind power plant box transformer structure includes: an explosion-proof wall, a safety guardrail, a platform, a tank transformer oil pool and a tank transformer foundation; the box transformer foundation adopts a prefabricated structure, and a platform is arranged on the top surface; the tank transformer oil tank is attached to one side of the tank transformer foundation; the tank transformer oil tank is communicated with a tank transformer foundation pipeline; the bottom surface of the tank transformer oil pool is level with the ground; the blast wall sets up in the platform one side that is close to the tower section of thick bamboo to set up the safety barrier in the other three sides of platform. The structure reduces the requirement of basic bearing capacity by adopting the box-shaped prefabricated structure, shortens the distance between the box transformer and the fan tower drum while meeting the basic function of the box transformer, reduces the cable length between the fan and the box transformer, saves the land used for the box transformer foundation and shortens the construction period.

Description

Box transformer structure of wind power plant

Technical Field

The application relates to the technical field of wind power construction, in particular to a box transformer structure of a wind power plant.

Background

Wind energy is clean renewable energy, and development of wind energy can effectively reduce fossil energy consumption and cope with climate change. In recent years, in order to moderately develop wind power in a proper area and realize the optimal configuration of wind energy resources, the single-machine capacity of the fan is gradually developed from 2.5MW and 3.3MW types to large-capacity fans of 6.5MW, 6.7MW and the like, the capacity of the box transformer is increased, and meanwhile, the occupied area of the box transformer is increased. The large-capacity box transformer adopts a sulfur hexafluoride inflatable box transformer, and a small amount of toxic sulfur hexafluoride overflows. In order to ensure the safety of box transformer service personnel, the box transformer oil tank containing toxic gas needs to be lifted above the ground so as to be convenient for ventilation.

The existing box transformer foundation generally adopts a bricked structure and is arranged outside the range of the fan foundation so as to meet the requirement that the distance between a unit power transformation unit and a fan unit in wind power generation field design specification is not smaller than 10 m. The box transformer of the type increases the engineering permanent occupied area on one hand and the cable length between the fan and the box transformer on the other hand; the three aspects are that the hoisting of fan equipment is affected because the box transformer foundation and the box transformer oil pool are higher than the ground; the foundation construction period of the box transformer is longer in the four aspects.

Disclosure of Invention

The application provides a wind power plant box transformer structure for solve the box transformer foundation area that exists among the prior art big, cable connection length is long, construction cycle is long and influence the problem of fan hoist and mount.

The application provides a wind power plant box transformer structure, wherein a tower drum is arranged on the top surface of a fan foundation; the fan is arranged at the top end of the tower cylinder and penetrates through the box transformer foundation to be in power supply connection with the box transformer; the fan foundation is buried underground; the wind power plant box-type transformer structure is arranged at one side of the tower barrel; the box transformer foundation adopts a prefabricated box structure and is arranged above the fan foundation;

the wind power plant box transformer structure includes: an explosion-proof wall, a safety guardrail, a platform, a tank transformer oil pool and a tank transformer foundation; a platform is arranged on the top surface of the box transformer foundation; the explosion-proof wall is arranged on one side of the platform close to the tower drum, and safety guardrails are arranged on the other three sides of the platform; the tank transformer oil tank is attached to one side of the tank transformer foundation; the tank transformer oil tank is communicated with a tank transformer foundation pipeline; the bottom surface of the tank transformer oil pool is arranged at the same level with the ground.

Preferably, the box transformer is placed on a platform, and the box transformer foundation is arranged below the platform.

Preferably, it comprises: a cable; the box transformer foundation is connected with the fan through cable power supply.

Preferably, the platform comprises: an overhaul platform and an installation platform; the box transformer is placed on the mounting platform.

Preferably, it comprises: a plurality of ladders; one end of the crawling ladder is arranged on the maintenance platform, and the other end of the crawling ladder extends vertically to the ground.

Preferably, it comprises: a drain pipe; one end of the drain pipe is inserted into the bottom of the tank transformer oil tank, and the other end of the drain pipe extends out of one side of the tank transformer oil tank.

Preferably, it comprises: safety guardrails and protective ceilings; safety guardrails are arranged on the rest side walls of the platform except the explosion-proof wall along the edges of the platform; and a protective ceiling is arranged at the top of the safety guardrail and the blast wall.

The beneficial effects that this application can produce include:

1) The utility model provides a wind-powered electricity generation field case becomes structure sets up case change basis and case change oil pool through this structure in tower section of thick bamboo one side, fan foundation top, and this structure can reduce the whole area of case change basis when satisfying case change foundation structure requirement, and case change basis need not to set up in fan foundation periphery can satisfy the fire prevention distance requirement, guarantees the safe handling of fan and case change.

2) The utility model provides a wind power plant case becomes structure sets up the case according to this structure and becomes the basis after, can shorten the distance of fan and case change basis, reduces the use amount of cable, reduce cost.

3) The utility model provides a wind power plant case becomes structure adopts prefabricated box structure, has reduced the structure and has required to the foundation bearing capacity, has shortened case and has become basic construction cycle, compares in traditional ground brick case and becomes foundation structure, has reduced the influence of case and become basic work progress to fan equipment hoist and mount.

Drawings

Fig. 1 is a schematic diagram of a wind farm box-type transformer substation structure installation state;

fig. 2 is a schematic top view structure of a wind farm box transformer structure provided by the application;

FIG. 3 is a schematic view of the cross-sectional structure of A-A of FIG. 2;

legend description:

1. a tower; 2. a fan foundation; 3. a cable; 4. an explosion-proof wall; 5. a platform; 6. a safety barrier; 7. a box transformer foundation; 8. a box transformer; 9. a tank transformer oil pool; 10. a protective ceiling; 11. a maintenance platform; 12. a ladder stand; 13. a mounting platform; 14. a base cushion layer; 15. reserving holes; 16. and (5) a water drain pipe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Technical means which are not described in detail in the application and are not used for solving the technical problems of the application are all arranged according to common general knowledge in the field, and various common general knowledge arrangement modes can be realized.

Referring to fig. 1 to 3, the wind farm box-type transformer substation structure provided by the application includes: the system comprises a platform 5, a box transformer foundation 7, an explosion-proof wall 4 and a box transformer oil pool 9 arranged on the ground; the bottom of the box transformer foundation 7 is buried below the ground level, and a foundation cushion layer 14 is arranged at the bottom and above the fan foundation 2; the tower 1 is arranged in the middle of the top surface of the fan foundation 2, and the fan is arranged at the top of the tower 1; the fan is connected with the box transformer substation power supply through the reserved hole 15. Specifically, the power supply connection is realized through the cable 3, and the box transformer foundation 7 is arranged according to the structure, so that the length of the required cable 3 can be effectively reduced, and the engineering cost is reduced.

A box transformer foundation 7 is arranged on one side of the tower 1, and the upper part of the box transformer foundation 7 is exposed out of the ground and is arranged close to the tower 1; the top surface of the box transformer foundation 7 is symmetrically provided with platforms 5; the platform 5 comprises an overhaul platform 11 and an installation platform 13, and an overhaul worker enters the overhaul platform 11 through the crawling ladder 12 to carry out overhaul operation. An explosion-proof wall 4 is arranged on the outer side of the platform 5 close to one side of the tower 1 and perpendicular to the platform 5; the explosion-proof wall 4 can prevent the tower body from being damaged when the box transformer 8 is subjected to safety accidents such as explosion, and meanwhile, the protection ceiling 10 is arranged at the top of the box transformer 8 to prevent falling objects possibly generated during fan overhaul from affecting the box transformer; through setting up the blast wall 4 can effectively solve case change basis 7 and be close to the potential safety hazard that tower section of thick bamboo 1 set up and exist, when reducing the land used volume, guarantee case change basis 7 safety in utilization.

The platform 5 includes mounting platform 13 and maintenance platform 11, in the three direction of platform 5 removal blast wall 4, sets up safety barrier 6 along the platform 5 limit, prevents that operating personnel from falling. Meanwhile, the maintenance platform 11 effectively extends an operation plane, and provides more operation space for operators.

The tank transformer oil tank 9 is arranged on the ground, is closely attached to the tank transformer foundation 7 and is in air circuit communication with the tank transformer foundation 7. The tank transformer oil pool 9 arranged on the ground is smooth in ventilation during maintenance, and the influence of harmful gas on maintenance personnel is greatly reduced.

In one embodiment, the method comprises the following steps: a plurality of ladders 12, wherein the ladders 12 are used for overhauling personnel to go up and down the platform 5; specifically, the crawling ladders 12 can be respectively and symmetrically arranged on two opposite sides of the platform 5 according to the requirement; the crawling ladder 12 is inserted on the overhaul platform 11 and extends vertically to the ground.

In one embodiment, the tank transformer tank 9 includes: a drain pipe 16; one end of the drain pipe 16 is inserted into the tank transformer oil tank 9, and the other end of the drain pipe extends out of the tank transformer oil tank 9 to be arranged, so that the tank transformer oil tank 9 can be emptied as required.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. A wind power plant box transformer structure is characterized in that a tower (1) is arranged on the top surface of a fan foundation (2); the fan is arranged at the top end of the tower cylinder (1) and penetrates through the box transformer foundation (7) to be connected with the box transformer in a power supply manner; the air blower is characterized in that the air blower foundation (2) is buried underground; the wind power plant box-type transformer structure is arranged at one side of the tower cylinder (1); the box transformer foundation (7) adopts a prefabricated box structure and is arranged above the fan foundation (2);

the wind power plant box transformer structure includes: the anti-explosion wall (4), the safety barrier (6), the platform (5), the tank transformer oil pool (9) and the tank transformer foundation (7); a platform (5) is arranged on the top surface of the box transformer foundation (7); the explosion-proof wall (4) is arranged on one side of the platform (5) close to the tower (1), and safety guardrails (6) are arranged on the other three sides of the platform (5); the tank transformer oil tank (9) is attached to one side of the tank transformer foundation (7); the tank transformer oil tank (9) is communicated with a pipeline of the tank transformer foundation (7); the bottom surface of the tank transformer oil tank (9) is arranged flush with the ground.

2. The wind farm box transformer structure according to claim 1, characterized in that the box transformer (8) is placed on the platform (5), and the box transformer foundation (7) is arranged below the platform (5).

3. The wind farm box-section according to claim 1, comprising: a cable (3); the box transformer foundation (7) is connected with the fan through a cable (3) in a power supply manner.

4. A wind farm box-section according to claim 1, wherein the platform (5) comprises: an overhaul platform (11) and a mounting platform (13); the box transformer (8) is placed on a mounting platform (13).

5. The wind farm box-section according to claim 4, comprising: a plurality of ladders (12); one end of the crawling ladder (12) is arranged on the overhaul platform (11), and the other end of the crawling ladder extends vertically to the ground.

6. The wind farm box-section according to claim 1, comprising: a drain pipe (16); one end of the drain pipe (16) is inserted into the bottom of the tank transformer oil tank (9), and the other end of the drain pipe extends out of one side of the tank transformer oil tank (9).

7. The wind farm box-section according to claim 1, comprising: a safety barrier (6) and a protective ceiling (10); safety guardrails (6) are arranged along the edges of the platform (5) on the rest side walls of the platform (5) except the explosion-proof wall (4); the top of the safety guardrail (6) and the explosion-proof wall (4) are provided with a protective ceiling (10).