CN215645799U - 220kV platform type half-indoor transformer substation structure - Google Patents

220kV platform type half-indoor transformer substation structure Download PDF

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Publication number
CN215645799U
CN215645799U CN202122069242.4U CN202122069242U CN215645799U CN 215645799 U CN215645799 U CN 215645799U CN 202122069242 U CN202122069242 U CN 202122069242U CN 215645799 U CN215645799 U CN 215645799U
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platform
building
distribution
power distribution
substation structure
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张国钦
李晔
李轩
潘立舟
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Sichuan Electric Power Design and Consulting Co Ltd
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Sichuan Electric Power Design and Consulting Co Ltd
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Abstract

The utility model relates to a 220kV platform type semi-indoor transformer substation structure which comprises a horizontal overhead platform, wherein a plurality of supporting columns are arranged at the bottom of the overhead platform, a master control communication building, a distribution comprehensive building, an outgoing line framework and a main transformer are arranged on the overhead platform, the outgoing line framework is positioned at one end of the distribution comprehensive building, the other end of the distribution comprehensive building is connected with the master control communication building, the main transformer is positioned in front of the distribution comprehensive building, and a distribution device is arranged in the distribution comprehensive building. According to the utility model, soil purchasing and backfilling are not needed, the ground under the overhead platform can keep the original landform, and the influence on the environment is small; the construction does not need to be provided with a supporting structure, so that the engineering quantity of the supporting structure and the foundation treatment can be reduced, and the problem of station site field settlement caused by water level rising can be avoided; if unfavorable geological conditions such as unstable slopes exist near the site, the overhead platform and other building structures of the site area can adopt a pile foundation scheme, so that adverse effects on the slope safety are avoided.

Description

220kV platform type half-indoor transformer substation structure
Technical Field
The utility model relates to the field of transformer substations, in particular to a 220kV platform type half-indoor transformer substation structure.
Background
The design of the transformer substation must consider the hydrological condition of the site, and the technical code of the total arrangement design of the transformer substation (DL/T5056-2007) item 6.1.1 provides: in 220kV hub substations and substations with voltage class higher than 220kV, the station site design elevation is higher than the flood level or the historical highest waterlogging level with the frequency of 1 percent (in the recurrence period, the same below); the site design elevation of the substation area of other voltage classes should be higher than the flood level or the historical highest waterlogging level with the frequency of 2%.
In the design of transformer substation in the past, when the design elevation of transformer substation site area ground can not satisfy above requirement, the design elevation of the place design elevation in order to improve the transformer substation is filled with soil in the transformer substation field to satisfy the requirement of flood level or waterlogging water level. However, when the original ground elevation of the field is much lower than the flood level, the scheme has the following problems:
1. because the original ground elevation of the field is greatly different from the flood level, if the original ground elevation is improved to meet the design of the standard requirement, a large amount of earthwork is needed to be purchased for backfilling, and the environment-friendly principle is not met;
2. the height of the supporting structure for backfilling is larger due to higher filling, and the full flood submerging working condition needs to be considered during design, so that the required engineering quantity of the supporting structure is larger under the working condition due to the action of buoyancy;
3. in rainy seasons, the water level outside the station often rises to be close to the designed elevation of the site, and when the water level is lowered, part of backfill soil is easily taken away, so that water and soil loss is caused, and the problem of site settlement is caused;
4. if the slope toe of the site has unfavorable geological conditions such as an unstable slope and the like, by adopting the scheme, because the filling thickness is larger, a larger slope top load is increased at the top of the unstable slope, and the safety of the slope is adversely affected;
5. by adopting the scheme, the filling thickness is larger, and the bearing layer of the foundation of the station building is under the filling, so that the bearing layer can be reached through the filling no matter what foundation form is adopted, and the foundation treatment engineering quantity is larger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a 220kV platform type semi-indoor transformer substation structure to solve the problem.
The technical scheme adopted by the utility model for solving the technical problems is as follows: 220kV platform formula half indoor transformer substation structure, including horizontal built on stilts platform, the bottom of built on stilts platform is provided with many spinal branchs post, be provided with master control communication building, distribution complex building, the framework of being qualified for the next round of competitions and main the transformer on the built on stilts platform, the framework of being qualified for the next round of competitions is located the one end of distribution complex building, and the other end of distribution complex building links to each other with master control communication building, the main transformer is located distribution complex building the place ahead, be provided with distribution device in the distribution complex building.
Furthermore, the edge of the overhead platform is provided with an annular internal road, the internal road surrounds the master control communication building, the power distribution comprehensive building, the outgoing line framework and the main transformer, and the internal road is connected with an external road through an inclined connecting road.
Furthermore, a plurality of water falling ports are arranged on the overhead platform.
Furthermore, the master control communication building and the power distribution comprehensive building are distributed in an L shape.
Furthermore, the distribution is synthesized the building and is the multilayer, distribution device includes 220kV GIS distribution device, 10kV condenser reactive power compensator and 10kV indoor distribution device, 110kV roof GIS distribution device that from supreme setting gradually down.
Furthermore, the stratum of the power distribution comprehensive building is provided with a cable outgoing tunnel.
Further, the overhead platform is a reinforced concrete platform.
Further, the support columns are reinforced concrete columns.
The utility model has the beneficial effects that: according to the utility model, the support columns with enough height are used for supporting the overhead platform, so that the elevation of the overhead platform meets the design requirement, soil purchasing and backfilling are not needed, the ground below the overhead platform can keep the original landform, and the influence on the environment is small; the construction does not need to be provided with a supporting structure, so that the engineering quantity of the supporting structure and the foundation treatment can be reduced, and the problem of station site field settlement caused by water level rising can be avoided; if unfavorable geological conditions such as unstable slopes exist near the site, the overhead platform and other building structures of the site area can adopt a pile foundation scheme, so that adverse effects on the slope safety are avoided.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;
reference numerals: 1-an overhead platform; 2-a support column; 3-master control communication building; 4-distribution comprehensive building; 5, an outlet framework; 6, main transformation; 7-interior road; 8, connecting roads; 9 — external road; 10-a water falling port; and 11, a cable outlet tunnel.
Detailed Description
The utility model is further illustrated with reference to the following figures and examples.
As shown in fig. 1 and 2, the 220kV platform type semi-indoor transformer substation structure comprises a horizontal overhead platform 1, wherein a plurality of support columns 2 are arranged at the bottom of the overhead platform 1, a master control communication building 3, a distribution comprehensive building 4, an outgoing line framework 5 and a main transformer 6 are arranged on the overhead platform 1, the outgoing line framework 5 is positioned at one end of the distribution comprehensive building 4, the other end of the distribution comprehensive building 4 is connected with the master control communication building 3, the main transformer 6 is positioned in front of the distribution comprehensive building 4, and a distribution device is arranged in the distribution comprehensive building 4.
Aerial platform 1 leaves the platform that ground has a take the altitude promptly, through set up many support columns 2 in aerial platform 1's bottom, utilizes support column 2 to support aerial platform 1 steadily for aerial platform 1 keeps stable its above-mentioned equipment promptly, simultaneously, is 1% flood water level or the highest waterlogging water level of history according to local frequency and confirms the height of support column 2, guarantees that aerial platform 1's elevation satisfies the design requirement. The overhead platform 1 can adopt a reinforced concrete platform, the support columns 2 can adopt reinforced concrete columns, and in addition, the overhead platform 1 can also adopt a metal platform and the like.
According to the utility model, the support columns 2 are used for replacing backfill, so that a large amount of capital is not needed to be spent for purchasing soil for backfill, and the construction cost is saved. After construction, the ground under the overhead platform 1 can keep the original landform, and the influence on the environment is small; the construction does not need to be provided with a supporting structure, so that the engineering quantity of the supporting structure and the foundation treatment can be reduced, and the problem of station site field settlement caused by water level rising can be avoided; if unfavorable geological conditions such as unstable slopes exist near the site, the overhead platform 1 and other building structures of the site area can adopt a pile foundation scheme, so that adverse effects on the slope safety are avoided.
The power distribution comprehensive building 4 is used for installing power distribution devices, and the master control communication building 3 is used for installing other equipment. In order to reduce the area of the overhead platform 1 as much as possible and save the amount of reinforced concrete engineering, a semi-indoor transformer substation is adopted, namely, a main transformer 6 is arranged outdoors, and other total station equipment and functional rooms are arranged in a master control communication building 3 and a power distribution comprehensive building 4. The power distribution integrated building 4 is a plurality of layers, preferably 4 layers, and the power distribution devices are overlapped and arranged in the power distribution integrated building 4, so that the arrangement of a transformer substation is compact. Specifically, the master control communication building 3 and the power distribution integrated building 4 are distributed in an L shape, the main transformer 6 is positioned in front of the power distribution integrated building, and the master control communication building 3, the power distribution integrated building 4 and the main transformer 6 are arranged in the middle of the overhead platform 1. Building 4 is synthesized in distribution is the multilayer, distribution device includes from supreme 220kV GIS distribution device, 10kV condenser reactive power compensator and the indoor distribution device of 10kV, 110kV roof GIS distribution device who sets gradually down. The 220kV outgoing line has two modes, namely overhead outgoing line and cable outgoing line, the overhead outgoing line adopts an outgoing line framework 5, a cable outgoing tunnel 11 needs to be arranged at the bottom layer of the distribution comprehensive building 4 for cable outgoing, and the cable outgoing tunnel 11 is matched with a cable shaft to lead out the cable. 110k are V-cable outgoing and can be realized by using a cable shaft and a cable outgoing tunnel 11.
The edge of the overhead platform 1 is provided with an annular internal road 7, the internal road 7 surrounds the master control communication building 3, the power distribution comprehensive building 4, the outgoing line framework 5 and the main transformer 6, and the internal road 7 is connected with an external road 9 through an inclined connecting road 8. The annular internal road 7 forms a fire fighting tunnel and meets the requirements of the operation of the substation, and simultaneously facilitates the meeting of the transportation requirements of the equipment.
In order to avoid the adverse effect of rainwater on the surrounding environment of the station area overhead platform 1, a plurality of water falling ports 10 are arranged on the overhead platform 1, the water falling ports 10 can be connected with rainwater pipes, the rainwater on the station area platform is led to the ground through the rainwater pipes, and is discharged through underground drainage pipe ditches after being collected, so that the drainage scouring of sites around the station area can be avoided.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1.220kV platform formula half indoor transformer substation structure, its characterized in that: including horizontally built on stilts platform (1), the bottom of built on stilts platform (1) is provided with many support columns (2), be provided with master control communication building (3), distribution complex building (4), be qualified for the next round of competitions framework (5) and main transformer (6) on built on stilts platform (1), the framework of being qualified for the next round of competitions (5) is located the one end of distribution complex building (4), and the other end of distribution complex building (4) links to each other with master control communication building (3), main transformer (6) are located distribution complex building (4) the place ahead, be provided with distribution device in distribution complex building (4).
2. The 220kV platform-type half-indoor substation structure of claim 1, wherein: the edge of the overhead platform (1) is provided with an annular internal road (7), the internal road (7) surrounds the master control communication building (3), the power distribution comprehensive building (4), the outgoing line framework (5) and the main transformer (6), and the internal road (7) is connected with the external road (9) through the inclined connecting road (8).
3. The 220kV platform-type half-indoor substation structure of claim 1, wherein: the overhead platform (1) is provided with a plurality of water falling ports (10).
4. The 220kV platform-type half-indoor substation structure of claim 1, wherein: the master control communication building (3) and the power distribution comprehensive building (4) are distributed in an L shape.
5. The 220kV platform-type half-indoor substation structure of claim 1, wherein: the power distribution comprehensive building (4) is multilayer, and the power distribution device comprises a 220kV GIS power distribution device, a 10kV capacitor reactive compensation device, a 10kV indoor power distribution device and a 110kV roof GIS power distribution device which are sequentially arranged from bottom to top.
6. The 220kV platform-type semi-indoor substation structure of claim 5, wherein: and a cable outlet tunnel (11) is arranged at the bottom layer of the power distribution comprehensive building (4).
7. The 220kV platform-type half-indoor substation structure of claim 1, wherein: the overhead platform (1) is a reinforced concrete platform.
8. The 220kV platform-type half-indoor substation structure of claim 1, wherein: the support column (2) is a reinforced concrete column.
CN202122069242.4U 2021-08-30 2021-08-30 220kV platform type half-indoor transformer substation structure Active CN215645799U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122069242.4U CN215645799U (en) 2021-08-30 2021-08-30 220kV platform type half-indoor transformer substation structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122069242.4U CN215645799U (en) 2021-08-30 2021-08-30 220kV platform type half-indoor transformer substation structure

Publications (1)

Publication Number Publication Date
CN215645799U true CN215645799U (en) 2022-01-25

Family

ID=79904200

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122069242.4U Active CN215645799U (en) 2021-08-30 2021-08-30 220kV platform type half-indoor transformer substation structure

Country Status (1)

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CN (1) CN215645799U (en)

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