CN214194635U

CN214194635U - Full indoor transformer substation box type basis with cable channel function

Info

Publication number: CN214194635U
Application number: CN202023064248.4U
Authority: CN
Inventors: 王子华; 安春秀; 黄达余; 吴亮; 邵雪军; 梅狄克; 余洋; 谢畅; 廖勇; 周志超
Original assignee: China Energy Engineering Group Zhejiang Eleteric Power Design Institute Co ltd
Current assignee: China Energy Engineering Group Zhejiang Eleteric Power Design Institute Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-09-14
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses an all-indoor transformer substation box basis with cable channel function mainly includes GIS equipment box basis and main transformer box basis, GIS equipment box basis adopts cuboid box foundation structure, just GIS equipment box basis is including 500kVGIS basis and the 220kVGIS basis that sets up side by side, 500kVGIS basis and 220kVGIS basis pass through the GIL passageway with main transformer box basis intercommunication, are provided with the GIL pipeline in the GIL passageway, one side that 500kVGIS basis deviates from 220kVGIS basis is provided with the 500kV cable tunnel that the power supply cable passes through, one side that 220kVGIS basis deviates from 500kVGIS basis is provided with the 2200kV cable tunnel that the power supply cable passes through; a concrete short column used for transferring the self weight of the equipment to foundation soil is arranged in the main transformer box type foundation; it has the advantages of being more suitable for soft soil foundation, effectively saving cost and shortening construction period.

Description

Full indoor transformer substation box type basis with cable channel function

Technical Field

The utility model relates to a distribution device basis field, concretely relates to full indoor transformer substation box basis with cable channel function.

Background

Important equipment of the whole indoor transformer substation is a GIS and a main transformer, a GIS bus shell is connected by a rigid flange, an inner conductor is sleeved by an aluminum pipe, the requirement on differential settlement of the foundation is high, and the settlement difference of every 10m of the GIS foundation is 2-3 mm; the requirement of the settlement difference between the wire inlet and outlet sleeve foundation and the GIS body large plate foundation is the same as that of GIS equipment, but the difference can be adjusted through the vertical telescopic joints, and the settlement difference of 5mm can be adjusted through one telescopic joint. When the GIS equipment and the main transformer equipment are connected by adopting the GIL pipeline, the settlement requirement of the GIL pipeline is the same as that of the inlet and outlet line sleeve and the GIS body, the differential settlement requirement between the GIS equipment and the main transformer equipment is higher at the moment, the live load of the GIS equipment is about 10kPa, the live load of the main transformer equipment is about 100 kPa, and the control of the differential settlement is challenged by the difference of the live loads of the two kinds of equipment.

The whole indoor transformer substation is mostly cable outgoing, and the process has more requirements on cable channels due to outgoing requirements, cable connection between devices and other requirements. When the whole indoor substation is located on a soft soil foundation, the equipment foundation usually adopts a pile foundation to solve the settlement problem, and the cost of the pile foundation is generally far higher than that of a natural foundation. Based on the requirements of process specialties on cable channels and the sensitivity of partial equipment pipelines to differential settlement, how to provide an economical and reasonable novel foundation according to actual conditions and local conditions is very important.

Disclosure of Invention

The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, provide one kind and more be applicable to the weak soil foundation, and can effectively practice thrift cost, reduction of erection time's full indoor transformer substation box basis that has the cable channel function.

The utility model aims at accomplishing through following technical scheme, an all-indoor transformer substation box basis with cable channel function mainly includes GIS equipment box basis and main transformer box basis, GIS equipment box basis adopts cuboid box foundation structure, just GIS equipment box basis is including 500kVGIS basis and the 220kVGIS basis that sets up side by side, 500kVGIS basis and 220kVGIS basis pass through the GIL passageway with main transformer box basis intercommunication is provided with the GIL pipeline in the GIL passageway, one side that 500kVGIS basis deviates from 220kVGIS basis is provided with the 500kV cable tunnel that the power supply cable passes through, one side that 220kVGIS basis deviates from 500kVGIS basis is provided with the 2200kV cable tunnel that the power supply cable passes through.

Furthermore, a concrete short column used for transferring the self weight of the equipment to foundation soil is arranged in the main transformer box type foundation.

The utility model has the advantages of: compared with the prior art, the utility model, on the one hand adopt the partial inner space on box basis as cable channel, and on the other hand adopts box basis can reduce basement additional stress by very big degree, is favorable to controlling each partial difference and subsides, has the advantage in the aspect of reduction of erection time, reduction engineering cost etc. has higher economy and social.

Drawings

FIG. 1 is a three-dimensional schematic view of the box foundation of the present invention;

FIG. 2 is a comprehensive cross-sectional view of the box-type foundation of the present invention;

fig. 3 is a schematic structural diagram of a GIS foundation according to the present invention;

FIG. 4 is a plan view of the GIS foundation of the present invention;

fig. 5 is a schematic structural view of the main transformer base of the present invention;

fig. 6 is a plan sectional view of the main transformer base of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "lateral", "vertical", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.

The utility model discloses utilize box basis to reduce basement additional stress, the size on rational design box basis makes it have cable channel function concurrently, and box basis is favorable to controlling each partial difference and subsides.

As shown in FIGS. 1-6, an all-indoor substation box basis with cable channel function, mainly include GIS equipment box basis and main transformer box basis 1, GIS equipment box basis adopts cuboid box foundation structure, and the inside net size of basis is required to decide by the cable laying, and the basic length and width size is basically with the equipment scope. GIS equipment box basis is including 500kVGIS basis 2 and 220kVGIS basis 3 that set up side by side, 500kVGIS basis 2 and 220kVGIS basis 3 pass through GIL passageway 4 with main transformer box basis 1 intercommunication, are provided with the GIL pipeline in the GIL passageway 4, 500kVGIS basis 2 deviates from one side of 220kVGIS basis 3 and is provided with 500kV cable tunnel 6 that the power cable passes through, 220kVGIS basis 3 deviates from one side of 500kVGIS basis 2 and is provided with 2200kV cable tunnel 7 that the power cable passes through.

Because main transformer equipment is heavy, a concrete short column 8 is added in the main transformer box type foundation 1 to ensure that the self weight of the equipment is transferred to foundation soil, the thickness of a top plate is reduced, and the size of the foundation is mainly determined by additional stress of a substrate; the cable channel between each equipment is in the form of a tunnel, and the requirements of cable laying and personnel overhauling are met.

The size of the box-type foundation is determined according to GIS equipment data and the relation with a main structure, and the clearance size of the box-type foundation is determined according to the requirement of the turning radius of the cable.

The design of the main transformer foundation is to determine the plane size of the main transformer foundation according to the weight of the main transformer equipment and the additional stress of the foundation, and because the main transformer equipment is heavy, the concrete short column is added at the bottom of the main transformer box type foundation to ensure that the dead weight of the equipment is transferred to the foundation soil, and meanwhile, the thickness of the top plate is reduced.

The utility model discloses a box basis's part inner space is as cable channel, and on the other hand adopts box basis can reduce basement additional stress to very big degree, is applicable to the soft soil foundation, subsides to the difference of controlling important equipment and has good effect, is favorable to controlling each partial difference and subsides, has the reduction of erection time, reduces the advantage in the aspect of engineering cost etc. has higher economy and social, compares traditional basic form, has the advantage of practicing thrift the cost, reduction of erection time.

The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.

Claims

1. The utility model provides an all-indoor transformer substation box basis with cable channel function which characterized in that: mainly include GIS equipment box basis and main transformer box basis, GIS equipment box basis adopts cuboid box foundation structure, just GIS equipment box basis is including 500kVGIS basis and the 220kVGIS basis that set up side by side, 500kVGIS basis and 220kVGIS basis pass through the GIL passageway with main transformer box basis intercommunication, are provided with the GIL pipeline in the GIL passageway, one side that 500kVGIS basis deviates from 220kVGIS basis is provided with the 500kV cable tunnel that the power supply cable passes through, one side that 220kVGIS basis deviates from 500kVGIS basis is provided with the 2200kV cable tunnel that the power supply cable passes through.

2. The all-indoor substation box foundation with cable channel function of claim 1, characterized in that: and a concrete short column used for transferring the self weight of the equipment to foundation soil is arranged in the main transformer box type foundation.