CN216929368U

CN216929368U - New forms of energy photovoltaic hua style transformer substation

Info

Publication number: CN216929368U
Application number: CN202123426207.XU
Authority: CN
Inventors: 葛于祥; 奚鹏德; 石川; 蒋飞; 鄢首强
Original assignee: Beijing Sojo Electric Co Ltd
Current assignee: Beijing Sojo Electric Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-08
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a new energy photovoltaic Hua-type transformer substation, which solves the technical problems that the existing overall structure is not beneficial to improving operation and maintenance efficiency and reducing potential hazards. The transformer module comprises a high-pressure side shell, a low-pressure side shell and a transformer module, and further comprises a bottom support, wherein the high-pressure side shell, the low-pressure side shell and the transformer module are located at the top of the bottom support, the low-pressure side shell and the transformer module are arranged in the front and at the back and are parallel to each other in the extending direction, the extending direction of the high-pressure side shell is perpendicular to the low-pressure side shell, and the high-pressure side shell is arranged in parallel to the low-pressure side shell and the transformer module. The structural design of high low side can guarantee the normal operating and the operation safety of equipment, and the adaptable actual demand that satisfies different without quantity inlet wire return circuit of frame circuit breaker cabinet of low pressure side, and the suitability is stronger. The high-voltage side, the low-voltage side, the transformer and the bottom support are independent, so that even if the capacity of the transformer is changed, the influence on other three modules is small, and the interchangeability is better.

Description

New forms of energy photovoltaic hua style transformer substation

Technical Field

The utility model relates to the technical field of power transformation, in particular to a new energy photovoltaic Hua-type transformer substation.

Background

In the prior art, European, American and Hua type transformer substations exist, and the Hua type transformer substation adopts a box body structure and has the technical characteristics of good universality and compact arrangement of internal functional circuits. However, in consideration of the actual operation and maintenance conditions of the existing new energy photovoltaic power station in the aspects of fire prevention, capacity expansion, maintenance and the like, the overall structure of the hua-type substation needs to be further improved.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the embodiment of the utility model provides a new energy photovoltaic hua-type substation, which solves the technical problems that the existing overall structure is not beneficial to improving operation and maintenance efficiency and reducing potential hazards.

The new energy photovoltaic Huacheng transformer substation comprises a high-pressure side shell, a low-pressure side shell, a transformer module and a bottom support, wherein the high-pressure side shell, the low-pressure side shell and the transformer module are located at the top of the bottom support, the low-pressure side shell and the transformer module are arranged in front and at the back and are parallel in the extension direction, the extension direction of the high-pressure side shell is perpendicular to that of the low-pressure side shell, and the high-pressure side shell is arranged in parallel on the low-pressure side shell and the transformer module.

In one embodiment of the utility model, the bottom support is a cube, the horizontal section of the bottom support is rectangular, and the front section, the rear section, the left section and the right section of the bottom support are trapezoidal.

In one embodiment of the utility model, the base support is of a composite layer structure and sequentially comprises a base layer, a stress dispersion layer and a bearing layer from bottom to top, the top and the bottom of the stress dispersion layer are provided with convex reinforcing ribs, the reinforcing ribs are strip-shaped, the starting end of each reinforcing rib is positioned in a certain circular range at the center of the base support, the extending end of each reinforcing rib extends towards the edge of the base support along the radial direction of the certain circular shape, and the bearing layer embedded into the reinforcing ribs is in corresponding contact with the corresponding contact surface of the base layer.

In an embodiment of the utility model, the high-pressure side shell comprises an annular first side wall and a first top cover covering the top of the first side wall, the front surface of the first side wall is provided with a door hole, an outer door plate and an inner door plate which are parallel are arranged on the door hole, the outer door plate is used for protecting the inner door plate and keeping the inner door plate airtight, and the inner door plate is used for arranging a control device and an operation and maintenance hand hole of high-pressure equipment.

In an embodiment of the utility model, the low-pressure side shell comprises an annular second side wall and a second top cover covering the top of the second side wall, the front surface of the second side wall is provided with a door hole, and a protective door plate is arranged on the door hole and used for forming an operation and maintenance channel.

In an embodiment of the present invention, the cabinets are arranged in parallel in the low-pressure side shell toward the front.

In an embodiment of the utility model, the cabinet comprises a first cabinet for orderly accommodating fixed circuit breakers; the cabinet includes a second cabinet for orderly accommodating the molded case circuit breakers.

In one embodiment of the utility model, the transformer is electrically connected with the low-voltage cabinet, and the radiating fins are exposed.

In an embodiment of the utility model, the bottom of the high-pressure side shell and the bottom of the low-pressure side shell are provided with shutters, the top of the high-pressure side shell and the low-pressure side shell are provided with fans, and each fan comprises a fan cover.

In one embodiment of the utility model, the top of the high-pressure side shell and the top of the low-pressure side shell are covered with top covers, the tops of the top covers are obliquely arranged, and the interiors of the top covers are formed by adopting fireproof rock wool materials.

The overall scheme of the new energy photovoltaic Hua-type substation provided by the embodiment of the utility model is high in universality, and is suitable for photovoltaic box substations of various incoming line loops, European-type and American-type box substations. The structural design of high low side can guarantee the normal operating and the operation safety of equipment, and the adaptable actual demand that satisfies different with quantity inlet wire return circuit of frame circuit breaker cabinet of low pressure side, and the suitability is stronger. The high-voltage side, the low-voltage side, the transformer and the bottom support are independent, so that even if the capacity of the transformer is changed, the influence on other three modules is small, and the interchangeability is better.

Drawings

Fig. 1 is a schematic overall layout diagram of a new energy photovoltaic hua-type substation according to an embodiment of the present invention.

Fig. 2 is a schematic view of an internal frame structure of a new energy photovoltaic hua-type substation according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, the present invention is further described below with reference to the accompanying drawings and the detailed description. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The overall architecture layout of the new energy photovoltaic hua-type substation in one embodiment of the utility model is shown in fig. 1. In fig. 1, the present embodiment includes a high-pressure side housing 100, a low-pressure side housing 200, a transformer module 300, and a shoe 400 on top of which the high-pressure side housing, the low-pressure side housing, and the transformer module are seated.

The left side and the right side of the low-voltage side shell are used as the extending direction of the low-voltage side shell, and the parallel direction of the radiating fin groups 490 of the transformer module is used as the extending direction of the transformer module. The depth (i.e., front-rear) side length of the high-pressure side housing is defined as the extending direction of the high-pressure side housing.

The low-voltage side shell and the transformer module are arranged in front and at the back, the extension directions of the low-voltage side shell and the transformer module are basically parallel, and the extension direction of the high-voltage side shell is perpendicular to the low-voltage side shell and is parallel to the low-voltage side shell and the transformer module.

Through with the transformer module relatively isolated outside high pressure side shell and low pressure side shell, both can guarantee the leakproofness protection of high pressure side and low pressure side equipment, can compromise the dilatation and the change of transformer module again. Because the transformer module can carry out the protection of relatively simple fortune dimension, consequently can improve the local dilatation ability and the high, low pressure local cutting reinforcing protection characteristic of new forms of energy photovoltaic hua formula transformer substation when effectively reducing the transformer substation cost. The semi-enclosed structure formed by the high-voltage side shell 100 and the low-voltage side shell 200 is used for determining the later expansion space of the transformer module, and the site selection is facilitated to be planned in advance.

In one embodiment of the present invention, the bottom bracket 400 is a cube, the horizontal cross-sectional profile of the bottom bracket 400 is rectangular, and the front and rear cross-sections and the left and right cross-sections are trapezoidal.

In an embodiment of the utility model, the base is of a composite layer structure, the base layer, the stress dispersion layer and the bearing layer are sequentially arranged from bottom to top, the top and the bottom of the stress dispersion layer 420 are provided with convex reinforcing ribs, the reinforcing ribs are strip-shaped, the starting end of each reinforcing rib is positioned in a certain circular range at the center of the base, the extending end of each reinforcing rib extends towards the edge of the base along the radial direction of the certain circular shape, and the bearing layer embedded by the reinforcing ribs and the corresponding contact surface of the base layer are provided with the corresponding contact surfaces.

The toughness of the stress dispersion layer is better than that of the base layer and the bearing layer, and reinforced concrete with different labels or section bars with different yield coefficients can be adopted.

The bottom support is used as an insulation base of the load to bear the effective load in the high-voltage side shell, the low-voltage side shell and the transformer module. The pressure change of the top surface and the bottom surface of the bottom support is utilized to effectively improve the contact stability and the horizontal stability with the ground, and the adverse change of the ground support stability when the effective load changes is reduced. Meanwhile, the stress dispersion layer is utilized to effectively reduce the potential risk of reducing the internal strength of the bottom support caused by the formation of internal stress aggregation due to long-term load. Meanwhile, the reinforcing rib distribution characteristics of the stress dispersion layer are utilized, so that the bottom support can adapt to the stress change when the effective load changes suddenly, and the overall usability of the bottom support is kept.

In the new energy photovoltaic hua-type substation of the present invention, the high-voltage side housing 100 serves as a container for accommodating high-voltage switches and the like. The low pressure side housing 200 serves as a container for accommodating the medium-low voltage distribution device. The transformer module 300 may be configured to change performance by replacing or expanding the transformer module and the heat sink assembly.

The internal frame structure of the new energy photovoltaic Hua-type substation in one embodiment of the utility model is shown in fig. 2. In fig. 2, the high-pressure side housing 100 includes an annular first side wall 110 and a first top cover 120 covering the top of the first side wall, a door hole is opened on the front surface (i.e., the front end) of the first side wall 110, and an outer door panel and an inner door panel are disposed in parallel on the door hole, the outer door panel is used for protecting the inner door panel and keeping the inner door panel airtight, and the inner door panel is used for disposing a control device of the high-pressure equipment and an operation and maintenance service hand hole.

In an embodiment of the present invention, the high-voltage side housing 100 is disposed with devices or components such as a lightning arrester 130, an insulator, and a high-voltage switch 140, and the inner door panel is disposed with electrical components such as a display, an electromagnetic lock 150, and a control panel.

As shown in fig. 2, in an embodiment of the present invention, the low pressure side casing 200 includes a second side wall 210 having a ring shape and a second top cover 220 covering a top portion of the second side wall, wherein a front surface (i.e., a front end) of the second side wall 210 is provided with a door hole, and a guard door plate is disposed on the door hole to form an operation and maintenance passage.

As shown in fig. 2, in one embodiment of the present invention, the cabinets are arranged side by side toward the front (i.e., front end) in the low-pressure side casing 200. In an embodiment of the present invention, a first cabinet 230 is formed for orderly housing of the fixed circuit breakers 240 and a second cabinet 250 is formed for orderly housing of the molded case circuit breakers 260. The device can be arranged in a staggered manner up and down according to requirements, 8-20 incoming line loops can be provided, and different requirements can be met according to requirements.

In one embodiment of the utility model, the fixed parts arranged in the cabinet adopt a standardized and modular structure, and the interchangeability is strong.

In an embodiment of the utility model, the transformer is electrically connected with the circuit in the low-voltage cabinet, and the radiating fins are exposed. When the volume of the transformer is increased due to the increase of the capacity of the transformer, the overall layout is not required to be changed, and different requirements can be met only by increasing the length or the height of the transformer. When the whole capacity of transformer is adjusted, can directly length direction or direction of height change the size can, need not change the whole overall arrangement of transformer substation, and very little to the influence in the aspect of high pressure side and low pressure side, only need change with the transformer the connecting plate size can, can not influence the installation and the arranging of the inside electrical components and parts in high-low pressure both sides.

As shown in FIG. 2, in one embodiment of the present invention, louvers 270 are provided at the bottom of the second sidewall 210, and a blower 280 comprising a blower enclosure is provided at the top of the second sidewall 210.

In an embodiment of the present invention, a louver and a fan are disposed at corresponding positions on the first sidewall 110. Increase gaseous circulation for the case becomes inside through shutter and fan, reach the purpose of exhaust cooling.

In an embodiment of the present invention, the top of the first top cover 120 or the second top cover 220 is disposed obliquely, and the interior is made of fireproof rock wool material.

The new-energy photovoltaic Hua-type transformer substation provides a new idea for the design of the box-type transformer substation, the structural design of the high side and the low side can ensure the normal operation and the operation safety of equipment, the arrangement of the low side can meet the incoming line loops of different requirements, and the applicability is stronger. The high-voltage side, the low-voltage side, the transformer and the bottom support are independent, even if the capacity of the transformer is changed, the influence on other three modules is small, and the interchangeability of each module is better. The top cap of high-low pressure side has all been placed fire prevention rock wool, can protect equipment safety better. The concrete points are as follows: the frame circuit breaker cabinet of low pressure side is adaptable not to use quantity inlet wire return circuit, satisfies different actual demands.

When the capacity of the transformer is changed, only the length or the height of the transformer needs to be changed, and the integral structure of the box transformer substation does not need to be changed.

The high-voltage side is cooperated with the internal high-voltage switch operation panel through the electric parts such as the electromagnetic lock, the electrified display and the like to form an electric five-prevention linkage together, so that the safety of the equipment in operation is ensured.

The whole scheme has high universality, and is suitable for photovoltaic box-type substations of various incoming line loops and European and American box-type substations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A new energy photovoltaic Hua-type transformer substation comprises a high-pressure side shell, a low-pressure side shell and a transformer module, and is characterized by further comprising a bottom support, wherein the high-pressure side shell, the low-pressure side shell and the transformer module are located at the top of the bottom support, the low-pressure side shell and the transformer module are arranged in front and at the back and are parallel in extension direction, the extension direction of the high-pressure side shell is perpendicular to that of the low-pressure side shell, and the high-pressure side shell is arranged in the low-pressure side shell and the transformer module in parallel.

2. The new-energy photovoltaic Hua-type substation according to claim 1, wherein the base support is a cube, the profile of the horizontal section of the base support is rectangular, and the profiles of the front section, the rear section, the left section and the right section are trapezoidal.

3. The new energy photovoltaic hua-type substation of claim 2, wherein the base is a composite layer structure, the base layer, the stress dispersion layer and the bearing layer are sequentially arranged from bottom to top, the top and the bottom of the stress dispersion layer are provided with convex reinforcing ribs, the reinforcing ribs are strip-shaped, the starting end of each reinforcing rib is positioned in a certain circular range at the center of the base, the extending end of each reinforcing rib extends towards the edge of the base along a certain circular radial direction, and the bearing layer embedded in each reinforcing rib and the corresponding contact surface of the base layer are provided with a corresponding contact surface.

4. The new energy photovoltaic hua-type substation according to claim 1, wherein the high-voltage side housing comprises an annular first side wall and a first top cover covering the top of the first side wall, a door hole is formed in the front surface of the first side wall, an outer door plate and an inner door plate are arranged on the door hole in parallel, the outer door plate is used for protecting the inner door plate and keeping the inner door plate airtight, and the inner door plate is used for arranging a control device of high-voltage equipment and an operation and maintenance hand hole.

5. The new energy photovoltaic hua-type substation of claim 1, wherein the low voltage side shell comprises an annular second side wall and a second top cover covering the top of the second side wall, the front surface of the second side wall is provided with a door hole, and a protective door plate is arranged on the door hole and used for forming an operation and maintenance channel.

6. The new-energy photovoltaic hua-type substation of claim 1, wherein the cabinets are arranged side by side in the low-voltage-side housing toward the front.

7. The new-energy photovoltaic hua-type substation of claim 6, wherein the cabinets comprise a first cabinet for orderly housing of fixed circuit breakers; the cabinet includes a second cabinet for orderly accommodating the molded case circuit breakers.

8. The new-energy photovoltaic hua-type substation of claim 1, wherein the transformer is electrically connected with the low-voltage cabinet, and the heat sink is exposed.

9. The new energy photovoltaic hua-type substation of claim 1, wherein the bottom of said high voltage side housing and said low voltage side housing is provided with a louver and the top is provided with a fan, and the fan comprises a fan cover.

10. The new energy photovoltaic hua-type substation of claim 1, wherein the tops of the high-voltage side shell and the low-voltage side shell are covered with a top cover, the top of the top cover is arranged obliquely, and the interior of the top cover is formed by adopting fireproof rock wool materials.