CN210806537U

CN210806537U - Miniaturized prepackage type transformer substation on post

Info

Publication number: CN210806537U
Application number: CN201920879683.0U
Authority: CN
Inventors: 唐明群; 孙大璟; 唐大明; 况卫平
Original assignee: Jiangsu Qihou Intelligent Electrical Equipment Co ltd
Current assignee: Jiangsu Qihou Intelligent Electrical Equipment Co ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-06-19
Anticipated expiration: 2029-06-12

Abstract

The utility model relates to a column miniaturized prefabricated substation, which comprises a substation box body (5), a tubular pile (17), a low-voltage cable bridge (11) and a high-voltage cable pipe (10); the transformer substation box body (5) comprises a box body shell (1), a low-pressure chamber, a high-pressure chamber and a transformer chamber are arranged in the shell, the bottom of the transformer substation box body (5) is supported by two tubular piles (17), the miniaturized intelligent prefabricated transformer substation is installed in the air, the occupied area is extremely small, high-voltage cables and low-voltage cables pass in and out through cable pipes or bridge frames, and the structure is neat and attractive; and foldable operating platforms (18) are arranged on two sides of the transformer substation box body (5), so that the space is saved.

Description

Miniaturized prepackage type transformer substation on post

Technical Field

The invention relates to the technical field of distribution equipment, in particular to a column-mounted miniaturized prefabricated substation.

Background

A box-type substation is a common power supply device. A box-type transformer substation, also called a prefabricated substation, is a factory prefabricated indoor and outdoor compact distribution equipment which integrates a high-voltage switch device, a distribution transformer and a low-voltage distribution device according to a certain wiring scheme, namely, the functions of transformer voltage reduction, low-voltage distribution and the like are organically combined together and installed in a steel structure box which is damp-proof, rust-proof, dust-proof, rat-proof, fireproof, anti-theft, heat-insulating, totally-closed and movable.

Due to the characteristics, the box-type transformer substation is widely applied to districts, mines, factory enterprises, oil-gas fields, wind power stations and other places, and becomes a novel complete set of transformation and distribution equipment.

However, the common high-voltage load switch, the fuse, the transformer, the low-voltage switch cabinet and the like adopted by the box-type substation occupy a larger area. According to the general case change: the width is 3.6 meters and the depth is 2.2 meters, and the floor area is 7.92 square meters. With the development of cities and society, urban land resources are scarce, and a small-sized prefabricated substation with small floor area and reliable installation is required under the requirement of ensuring efficient land.

For example, the chinese utility model patent with the publication number CN201167213Y discloses a prefabricated substation, which mainly comprises: an upper cover and a box body; a transformer chamber, a high-voltage chamber and a low-voltage chamber are arranged in the box body; the upper cross beam and the side cross beam on the upper part of the high-pressure chamber are respectively provided with a ventilation groove; a top plate for sealing the high-pressure chamber is arranged at the top in the high-pressure chamber, and a space between the top plate and the upper cover is communicated with the top of the transformer chamber and a ventilation groove at the upper part of the high-pressure chamber; shutters are respectively arranged on the high-voltage chamber door and the transformer chamber door. Through the type test, the level of the shell of the prefabricated substation reaches 5, and the technical problem that the requirement for ventilation and heat dissipation of the prefabricated substation is high is solved. But the floor space of the substation is large.

For another example, the chinese utility model patent with the publication number CN203278057U discloses an intelligent prefabricated substation, which comprises a substation box-type housing, the housing is vertically divided into three independent spaces, a transformer is installed in the middle, a high voltage unit and a low voltage unit are respectively installed at two sides, the high voltage unit and the low voltage unit are respectively connected with the transformer, wherein the high voltage unit comprises a high voltage cabinet, a voltage transformer and an electric operating mechanism are installed beside the high voltage cabinet, and a current transformer is configured at the wire inlet and outlet of the high voltage unit; the low-voltage unit comprises a low-voltage bus bar and a low-voltage circuit breaker, and a UPS (uninterrupted power supply) and an FA (feeder) power distribution terminal device are further installed beside the low-voltage bus bar. The device can provide real-time high-voltage current and voltage parameter signals, and can realize the functions of high-voltage inlet and outlet line current, voltage and switch signal acquisition, fault analysis, automatic control and communication management. But the floor space of the substation is large.

Disclosure of Invention

In order to solve the technical defects in the prior art, the invention aims to provide a column-mounted miniaturized prefabricated substation to solve the problems of large floor area and poor safety performance in the prior art.

The on-column miniaturized prefabricated substation comprises a substation box body, tubular piles, a low-voltage cable bridge and a high-voltage cable steel pipe, wherein the substation box body comprises a box body shell, a low-voltage chamber, a high-voltage chamber and a transformer chamber are arranged in the shell, the bottom of the substation box body is supported by the two tubular piles, the miniaturized intelligent prefabricated substation is installed in the air, the floor area is extremely small, and high-voltage and low-voltage cables enter and exit through the cable pipes or the bridge, and the substation is neat and attractive; and foldable operating platforms are arranged on two sides of the transformer substation box body, so that the space is saved.

Preferably, the internal structure of the box body shell adopts a mesh-shaped layout.

In any of the above schemes, preferably, a high-voltage ring main unit, a transformer and a low-voltage outlet cabinet are arranged inside the box body shell.

In any of the above schemes, preferably, one path of bottom incoming line and two paths of outgoing lines are arranged in the high-voltage ring main unit, wherein the two paths of outgoing lines are one path of back outgoing line going to the transformer, and the bottom of the other path is looped out; the top of the transformer is led in, and the front part of the transformer is led out; the rear part of the low-voltage outlet cabinet is led in and the bottom part of the low-voltage outlet cabinet is led out.

In any of the above schemes, preferably, the foldable operation platform and the substation box body are fixed together through bolts and are hoisted to the supporting cross arms on two sides of the tubular pile in a unified manner.

In any of the above solutions, it is preferable that the foldable operation platform controls the folding angle by a winch fixed between the two tube piles.

In any of the above solutions, it is preferable that the folding angle of the foldable operation platform is 90 degrees.

In any of the above schemes, preferably, two doors are arranged on the foldable operation platform, and the two doors are left-right split doors or left-right foldable doors.

In any of the above schemes, preferably, one end of the low-voltage cable bridge is fixed on a channel steel of a base of a box body of the transformer substation, the other end of the low-voltage cable bridge is buried underground, and the middle part of the low-voltage cable bridge is fixed with a hoop on a tubular pile, so that the strength of the low-voltage cable bridge is ensured.

In any of the above schemes, preferably, the high-voltage ring main unit is located on the left side of the substation box body; the transformer is positioned in the middle of the transformer substation box body; the low-voltage outlet cabinet is positioned on the right side of the substation box body.

The preferred is in above-mentioned arbitrary scheme, high-pressure ring main unit bottom is equipped with the pressure release passageway, and this passageway is through reforming transform, leads to the pressure release internal combustion arc in the tubular pile.

Preferably in any one of the above schemes, the rear outgoing line of the high-voltage ring main unit is turned up to the top of the transformer, and the incoming line is led from the top of the transformer, so that the cable is convenient to install, attractive in appearance and easy to fix, the installation efficiency of the cable is improved, and the space and the occupied area are saved.

In any of the above schemes, preferably, a metering current transformer, a sampling current transformer, an electric meter, a multifunctional meter, and a molded case circuit breaker are arranged in the low-voltage outlet cabinet, and a TTU space is reserved. (TTU is distribution transformer monitoring terminal, used for the information acquisition and control to distribution transformer, it real-time supervision distribution transformer's operating condition to can convey the information acquisition to main website or other intelligent device, provide the required data of distribution system operation control and management.)

In any of the above schemes, preferably, the top inlet wire of the transformer adopts a sleeve form, so that direct plugging and unplugging and standardized operation can be realized, and the convenience and reliability of equipment installation are greatly improved.

In any of the above schemes, preferably, the louver and the heat dissipation holes are additionally arranged below the periphery of the transformer substation box body, so that the heat dissipation efficiency is improved, a good heat dissipation effect of the box body shell can be achieved through natural air cooling, the temperature rise requirement is met, and the energy and material consumption is reduced.

In any of the above embodiments, it is preferable that a circuit breaker is provided in the low-voltage chamber, and a protection panel is attached to an operation surface of the circuit breaker to prevent a charged body from being touched during operation.

In any of the above solutions, the external dimension of the box casing is 2200mm × 1250mm × 1700 mm. The device is suitable for being installed on a column, and the occupied area is extremely small.

In any of the above schemes, preferably, the high voltage cable steel pipe and the low voltage cable bridge are buried underground.

In summary, the column-mounted miniaturized prefabricated substation of the invention has the following advantages: the volume is small, the space is saved, and the use efficiency of materials is improved; an internal combustion arc channel is reformed, and the safety is ensured; the louver and the heat dissipation holes are additionally arranged on the side surface of the box body shell and the upper and lower parts of the periphery of the top cover, so that the heat dissipation efficiency is improved, a good heat dissipation effect of the box body shell can be achieved through natural air cooling, the temperature rise requirement is met, and the energy and material consumption is reduced; the foldable operating platform is arranged, so that the space is saved.

Drawings

Fig. 1 is a front view of a preferred embodiment of a miniaturized pre-installed substation on a column according to the present invention.

Fig. 2 is a left side view of the embodiment of fig. 1 of a miniaturized pre-installed substation on a column according to the invention.

Fig. 3 is a right side view of the embodiment of fig. 1 of a miniaturized pre-installed substation on a column according to the invention.

Fig. 4 is a schematic structural view of the embodiment of the post-miniaturized pre-assembled substation according to the present invention shown in fig. 1 with the bracket and the operating platform removed.

Fig. 5 is a left side view of the embodiment of fig. 4 of a miniaturized pre-installed substation on a column according to the invention.

Fig. 6 is a right side view of the embodiment of fig. 4 of a miniaturized pre-installed substation on a column according to the invention.

Fig. 7 is a schematic view of the miniaturized pre-assembled substation on a column according to the present invention with the outer door removed in the embodiment of fig. 4.

Fig. 8 is a left side view of the embodiment of fig. 7 of a miniaturized pre-installed substation on a column according to the invention.

Fig. 9 is a right side view of the embodiment of fig. 7 of a miniaturized pre-installed substation on a column according to the invention.

The device comprises a box body shell 1, a high-voltage ring main unit 2, a transformer 3, a low-voltage outlet cabinet 4, a transformer substation box body 5, a sampling current transformer 6, a metering current transformer 7, a watt-hour meter 8, a multifunctional meter 9, a high-voltage cable steel pipe 10, a low-voltage cable bridge 11, a cable hoop 12, a molded case circuit breaker 13, a TTU14, a zero row 15, a ground row 16, a tubular pile 17 and a foldable operation platform 18.

Detailed Description

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. The following description will further describe embodiments of the miniaturized pre-installed substation on a column according to the present invention with reference to the drawings.

As shown in fig. 1 to 6, a preferred embodiment of the miniaturized pre-installed substation on a column according to the present invention is schematically constructed. The invention aims to provide a post-miniaturization prefabricated substation, which comprises a pipe pile 17, a low-voltage cable bridge 11 and a high-voltage cable steel pipe 10; the box body comprises a box body shell 1 (shown in figure 7), a low-pressure chamber, a high-pressure chamber and a transformer chamber are arranged in the shell, the bottom of a transformer station box body 5 is supported by two tubular piles 17, a miniaturized intelligent prefabricated transformer station is installed in the air, the occupied area is extremely small, high-low voltage cables enter and exit through cable pipes or bridge frames, and the box body is neat and attractive; and foldable operating platforms 18 are arranged on two sides of the substation box body 5, so that the space is saved.

In this embodiment, the four doors of the transformer chamber and the two doors of the low-pressure chamber are in the form of labyrinth shutters, which is beneficial to ventilation and heat dissipation, and the protection level is not reduced.

In the embodiment, the foldable operating platform 18 and the substation box body 5 are fixed together through bolts and are uniformly hoisted to the supporting cross arms on the two sides of the pipe pile.

In this embodiment, the foldable platform 18 is controlled by a winch fixed between the two tube piles to control the angle of folding.

In this embodiment, the folding angle of the foldable operation platform 18 is 90 degrees.

In this embodiment, two doors are disposed on the foldable operation platform 18, and the two doors are left-right split doors or left-right foldable doors.

In this embodiment, one end of the low-voltage cable bridge 11 is fixed to a channel steel at the bottom of the substation box 5, the other end of the low-voltage cable bridge is buried underground, and the middle part of the low-voltage cable bridge is fixed to a hoop on the tubular pile 17, so that the strength of the low-voltage cable bridge 11 is ensured. The tubular pile 17 is two round tubes with the diameter of 400 mm.

In this embodiment, the high voltage cable steel pipe 10 and the low voltage cable tray 11 are buried underground.

Referring next to fig. 7-9, the post-miniaturization pre-assembled substation according to the present invention is schematically illustrated in the structure with the outer door removed in the embodiment of fig. 4.

In this embodiment, the internal structure of the box casing 1 adopts a mesh-shaped layout.

In this embodiment, a high-voltage ring main unit 2, a transformer 3 and a low-voltage outlet cabinet 4 are arranged inside the box body casing 1.

In this embodiment, one path of bottom incoming line and two paths of outgoing lines are arranged in the high-voltage ring main unit 2, wherein one path of the two paths of outgoing lines is outgoing from the rear part to the transformer 3, and the other path of the two paths of outgoing lines is looped out from the bottom part; the top of the transformer 3 is led in, and the front part of the transformer is led out, and the transformer adopts a copper bar form and is provided with flexible connection; the rear part of the low wire outlet cabinet 4 is led in and the bottom part is led out. If one of the two outgoing lines of the high-voltage ring main unit reaches the transformer 3 and the other outgoing line is not configured, the high-voltage ring main unit can be used as a terminal type; if one of the two outgoing lines of the high-voltage ring main unit reaches the transformer 3, and the other outgoing line is configured, the high-voltage ring main unit can be used as a ring network type. The lower part of the low-voltage wire outlet cabinet 4 is provided with a heat dissipation hole, so that the air circulation inside the box transformer substation is increased.

In this embodiment, the high-voltage ring main unit 2 is located on the left side of the substation box 5; the transformer 3 is positioned in the middle of the transformer substation box body 5; the low voltage outlet cabinet 4 is located on the right side of the substation cabinet 5. In this embodiment, the high-voltage ring main unit 2 is not provided with an electric operating mechanism.

In this embodiment, 2 bottoms in high-pressure looped netowrk cabinet are equipped with the pressure release passageway, and this passageway is through reforming transform, causes the pressure release internal combustion arc in tubular pile 17, and the security has obtained the guarantee.

In this embodiment, the rear portion of high-voltage ring main unit 2 goes out the line and turns over the top of transformer 3, from the top inlet wire of transformer 3, cable simple to operate moves towards beautifully and easy fixed, improves the installation effectiveness of cable, more saves space and area. When the rear part of the high-voltage ring main unit 2 is led out to the

transformer

3, 2 cable hoops are arranged, and the safety is higher.

In the embodiment, a metering current transformer 7, a sampling current transformer 6, a watt-hour meter 8, a multifunctional meter 9 and a molded case circuit breaker 13 are arranged in the low-voltage distribution cabinet 4, and a TTU14 space is reserved. (TTU is distribution transformer monitoring terminal, used for the information acquisition and control to distribution transformer, it real-time supervision distribution transformer's operating condition to can convey the information acquisition to main website or other intelligent device, provide the required data of distribution system operation control and management.)

Be equipped with the backplate before the moulded case circuit breaker in the low-voltage outlet cabinet 4, cover whole low-voltage cabinet electrified device is whole, safer when the operation circuit breaker.

In this embodiment, the top inlet wire of transformer 3 adopts the sleeve pipe form, can realize direct plug, standardized operation, has improved equipment fixing's convenience and reliability greatly.

In this embodiment, shutter and louvre open are additionally arranged to the below all around of transformer substation box 5, have improved the radiating efficiency, can reach the good radiating effect of box shell through natural forced air cooling, have satisfied the temperature rise requirement, reduce energy and material consumption.

In this embodiment, be equipped with circuit breaker 13 in the low-voltage chamber, install protection panel on this circuit breaker's the operating surface, prevent to touch electrified body when the operation.

In the embodiment, the external dimension of the box body shell 1 is 2200mm × 1250mm × 1700mm, and the box body shell is suitable for being installed on a column and occupies a very small area.

In summary, the column-mounted miniaturized prefabricated substation of the invention has the following advantages: the volume is small, the space is saved, and the use efficiency of materials is improved; an internal combustion arc channel is reformed, and the safety is ensured; the louver and the heat dissipation holes are additionally arranged on the side surface of the box body shell 1 and the upper and lower parts of the periphery of the top cover, so that the heat dissipation efficiency is improved, a good heat dissipation effect of the box body shell 1 can be achieved through natural air cooling, the temperature rise requirement is met, and the energy and material consumption is reduced; the foldable operating platform 8 is arranged, so that space is saved.

It will be understood by those skilled in the art that the miniaturized pre-packaged on-pole substation of the present invention includes any combination of the parts described in this specification. These combinations are not described in detail herein for the sake of brevity and clarity, but the scope of the invention, which is defined by any combination of the parts constructed in this specification, will become apparent after review of this specification.

Claims

1. A small-sized prefabricated substation on a column comprises a substation box body (5), a tubular pile (17), a low-voltage cable bridge (11) and a high-voltage cable steel pipe (10); this box includes box shell (1), is equipped with low-pressure chamber, high-pressure chamber and transformer room in this shell, its characterized in that: the bottom of the transformer substation box body (5) is supported by two tubular piles (17); and foldable operating platforms (18) are arranged on two sides of the transformer substation box body (5).

2. The miniaturized pre-installed substation on a column of claim 1, wherein: the internal structure of the box body shell (1) adopts a mesh-shaped layout.

3. The miniaturized pre-installed substation on a column of claim 1, wherein: the high-voltage ring main unit (2), the transformer (3) and the low-voltage outlet cabinet (4) are arranged in the box body shell (1).

4. The miniaturized pre-installed substation on a column of claim 3, wherein: one path of bottom incoming line and two paths of outgoing lines are arranged in the high-voltage ring main unit (2), wherein one path of the two paths of outgoing lines is outgoing from the rear part to the transformer (3), and the other path of the outgoing lines is looped out from the bottom part; the top of the transformer (3) is led in, and the front part of the transformer is led out; the rear part of the low wire outlet cabinet (4) is led in and the bottom part is led out.

5. The miniaturized pre-installed substation on a column of claim 1, wherein: the foldable operating platform (18) and the transformer substation box body (5) are fixed together through bolts and are hoisted to the supporting cross arms on the two sides of the tubular pile in a unified mode.

6. The miniaturized pre-installed substation on a column of claim 1 or 5, wherein: the angle of folding is controlled by a winch fixed between the two tubular piles by the foldable operating platform (18).

7. The miniaturized pre-installed substation on a column of claim 6, wherein: the folding angle of the foldable operating platform (18) is 90 degrees.

8. The miniaturized pre-installed substation on a column of claim 1 or 5, wherein: two doors are arranged on the foldable operating platform (18), and the two doors are left and right split doors or left and right foldable folding doors.

9. The miniaturized pre-installed substation on a column of claim 1, wherein: one end of a low-voltage cable bridge (11) is fixed on a channel steel at the bottom of the transformer substation box body (5), the other end of the low-voltage cable bridge is buried underground, and the middle part of the low-voltage cable bridge is fixed with a hoop on a tubular pile (17).

10. The miniaturized pre-installed substation on a column according to claim 3 or 4, characterized in that: the high-voltage ring main unit (2) is positioned on the left side of the transformer substation box body (5); the transformer (3) is positioned in the middle of the transformer substation box body (5); the low-voltage outlet cabinet (4) is positioned on the right side of the transformer substation box body (5).

11. The miniaturized pre-installed substation on a column according to claim 3 or 4, characterized in that: the bottom of the high-voltage ring main unit (2) is provided with a pressure relief channel, and the channel is transformed to introduce a pressure relief internal combustion arc into the tubular pile (17).

12. The miniaturized pre-installed substation on a column according to claim 3 or 4, characterized in that: the rear part of the high-voltage ring main unit (2) is turned to the top of the transformer (3) in an upward mode, and the wire is led from the top of the transformer (3).

13. The miniaturized pre-installed substation on a column of claim 3, wherein: a metering current transformer (7), a sampling current transformer (6), a watt-hour meter (8), a multifunctional meter (9) and a molded case circuit breaker (13) are arranged in the low-voltage outlet cabinet (4), and a TTU (14) space is reserved.

14. The miniaturized pre-installed substation on a column of claim 3, wherein: the top incoming line of the transformer (3) is in a sleeve form.

15. The miniaturized pre-installed substation on a column of claim 1, wherein: shutters and heat dissipation holes are additionally arranged below the periphery of the transformer substation box body (5).

16. The miniaturized pre-installed substation on a column of claim 1, wherein: the low-voltage chamber is internally provided with a circuit breaker, and a protective panel is arranged on the operating surface of the circuit breaker.

17. The miniaturized pre-installed substation on a column of claim 1, wherein: the external dimension of the box body shell (1) is 2200mm multiplied by 1250mm multiplied by 1700 mm.

18. The miniaturized pre-installed substation on a column of claim 1, wherein: the high-voltage cable steel pipe (10) and the low-voltage cable bridge (11) are buried underground.