A kind of framework being applicable to transformer station's outlet
Technical field
The invention belongs to high-tension electricity field, relate to a kind of framework being applicable to transformer station's outlet.
Background technology
Along with power grid construction scale development, transformer station will get more and more, and transformer substation framework is also increasing to the demand of steel, not only consume a large amount of mineral resources, and cause the severe contamination of ecological environment in the production and process of steel.Meanwhile, conventional substation outlet structure adopts the horizontal structure of three-phase conducting wire, and interval width is comparatively large, causes the significantly increase of land area.In addition, outlet structure place of transformer station adopts strain insulator and suspension insulator, adds investment, and insulation sub-pieces come off likely bottom device is caused badly damaged.
Therefore, be necessary to study outlet structure structural shape in transformer station, propose a kind of new frame structures.
Summary of the invention
The object of the present invention is to provide a kind of framework being applicable to transformer station's outlet, decrease steel consumption, effectively have compressed interval width, save floor occupying area.
For achieving the above object, the present invention adopts following technical scheme:
A kind of framework being applicable to transformer station's outlet, comprise truss column, compound cross-arm beam, compound stay cable and hanging wire ring, described truss column adopts single-column latticed steel structure, several compound cross-arm beams are horizontally set on each side of truss column, the plural compound cross-arm beam being arranged on truss column the same side is arranged up and down, each compound cross-arm beam one end is fixedly connected with truss column, the other end is installed hanging wire ring and is connected with truss column tractive by compound stay cable, and each compound cross-arm beam and compound stay cable and truss column Connecting groups synthesize two umbrella-shaped structure.
Described truss column both sides arrange a compound cross-arm beam and two compound cross-arm beams respectively, and each compound cross-arm beam connects a phase conductor, completes the outlet of A, B, C three-phase conducting wire.
Described truss column the 3rd side increases by a compound cross-arm beam and uses for wiring transition.
Described truss column is provided with cat ladder.
Described compound cross-arm beam is made up of two compound cross-arms, and two compound cross-arms and truss column form the isosceles triangle of horizontal positioned, and hanging wire ring is fixed on two compound cross-arm tie point places.
Transformer station of the present invention outlet structure adopts two umbrella-shaped structures of each compound cross-arm beam and the synthesis of truss column Connecting groups, because truss column side have employed the mode of arranging compound cross-arm up and down, compared with former horizontal arrangement, the horizontal requisite space of wire can be saved, thus compression outgoing line interval width, save transformer station's floor space.Because cross-arm have employed composite material, utilize its electric property, cancel strain insulator and suspension insulator, then can reduce framework height, take up space former insulator string effectively release, and save material investment.
To sum up, the present invention has the following advantages:
1, framework steel using amount reduces, and has saved framework steel and foundation of civil work investment.
2, the framework upper conductor mode of connection is different from conventional gate framework, and local is dual-layer metal line vertical arrangement, effectively have compressed interval width, saves floor occupying area.
3, because cross-arm have employed composite material, can utilize its electric property, cancel strain insulator and suspension insulator, then can reduce framework height, take up space former insulator string effectively release, and save material investment.
4, after adopting umbellate form compound cross-arm scheme, be connected more smooth and easy with circuit outlet.
5, framework facade is succinctly attractive in appearance, and processing and construction simply, save the building time of engineering.
Accompanying drawing explanation
Fig. 1-1 is the elevation of outlet structure structure of the present invention;
Fig. 1-2 is the lateral view of outlet structure structure of the present invention;
Fig. 2-1 is the top view after outlet structure structure of the present invention increases transition compound cross-arm beam;
Fig. 2-2 is the top view of outlet structure structure of the present invention;
Fig. 3 is for adopting outlet structure structure back plane arrangement diagram of the present invention;
Fig. 4 is outgoing line interval profile after employing outlet structure structure of the present invention;
In figure: 1 is truss column; 2 is compound cross-arm beam; 3 is compound stay cable; 4 is hanging wire ring; 5 is cat ladder; 6 is GIS sleeve pipe; 7 is potential transformer; 8 is arrester; 9 is wire; 10 carry LCP cabinet for GIS.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Shown in Fig. 1-1, outlet structure comprises truss column 1, compound cross-arm beam 2, hanging wire ring 4, cat ladder 5 and other accessory kits, truss column 1 adopts single-column latticed steel structure, truss column 1 is provided with cat ladder 5, compound cross-arm beam 2 adopts Composite material, truss column 1 mediates, both sides arrange compound cross-arm beam 2, compound cross-arm beam 2 is combined by compound cross-arm and compound stay cable, the plural compound cross-arm beam about 2 being arranged on truss column 1 the same side is arranged, each compound cross-arm beam 2 one end is fixedly connected with truss column 1, the other end is installed hanging wire ring 4 and is connected with truss column 1 tractive by compound stay cable, each compound cross-arm beam 2 and compound stay cable 3 and truss column Connecting groups synthesize two umbrella-shaped structure.
Described truss column 1 both sides arrange a compound cross-arm beam 2 and two compound cross-arm beams 2 respectively, and each compound cross-arm beam 2 connects a phase conductor, completes the outlet of A, B, C three-phase conducting wire.
As shown in Fig. 1-2 and Fig. 2-1, described truss column 1 the 3rd side increases by a compound cross-arm beam 2 and uses for wiring transition.
As shown in 2-2, described compound cross-arm beam 2 is made up of two compound cross-arms, and two compound cross-arms and truss column 1 form the isosceles triangle of horizontal positioned, and hanging wire ring 4 is fixed on two compound cross-arm tie point places.
Why traditional outlet structure adopts Steel structure door type frame, and main cause is that three-phase conducting wire is horizontal, and composite material is still immature, therefore adopts gate framework to be rationally economical; In order to reach the object simplifying framework, first should consider the width of reduction framework and falling low-built height.
See Fig. 3 and Fig. 4, the three-phase conducting wire 9 be connected with GIS sleeve pipe 6 respectively by after potential transformer 7, arrester 8 respectively through the outlet of three-phase composite cross-arm beam, transformer station is also provided with GIS and carries LCP cabinet 10.The present invention is owing to have employed two umbellate form compound framework, and its mode of connection will be different with conventional gate framework.By relatively finding out: after adopting compound cross-arm, framework steel using amount reduces, and has saved framework steel and foundation of civil work investment; On framework, local is dual-layer metal line vertical arrangement, effectively have compressed interval width, saves floor occupying area; Because cross-arm have employed composite material, can utilize its electric property, cancel strain insulator and suspension insulator, then can reduce framework height, take up space former insulator string effectively release, and save material investment; After adopting two umbrella compound cross-arm scheme, be connected more smooth and easy with circuit outlet; Compound cross-arm framework facade is succinctly attractive in appearance, and processing and construction simply, save the building time of engineering.
Can be drawn by above-mentioned analysis, this kind of two umbellate form compound framework has reduction outgoing line interval width, reduces rolled steel dosage and infrastructure investment; Facade is succinctly attractive in appearance, constructs and processes simple and convenient; Saving insulator string is invested; Install, overhaul, run the features such as more convenient, safe, reliable, can apply in engineering, and provide a new Scheme Choice for frame design.
Invention adopts two umbellate form outlet, and compressible outgoing line interval width saves transformer station's floor space.Meanwhile, after adopting compound cross-arm, efficiently utilize the electric property of composite material, save insulator string and wire investment herein; Finally, owing to adopting single-column lattice outlet structure, can coordinate better with line side terminal tower wiring, to line side design advantageously.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention; can not assert that the specific embodiment of the present invention is only limitted to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple deduction or replace can also be made, all should be considered as belonging to the present invention by submitted to claims determination scope of patent protection.