CN201594720U

CN201594720U - Suspension tubular busbar mounting structure

Info

Publication number: CN201594720U
Application number: CN2010203017891U
Authority: CN
Inventors: 吴家林; 卢敏; 石燕
Original assignee: Sichuan Electric Power Design and Consulting Co Ltd
Current assignee: Sichuan Electric Power Design and Consulting Co Ltd
Priority date: 2010-01-28
Filing date: 2010-01-28
Publication date: 2010-09-29
Anticipated expiration: 2020-01-28

Abstract

The utility model discloses a suspension tubular busbar mounting structure, which comprises structural beams arranged in lines. Two sides of each structural beam are provided with insulator strings, a busbar is arranged between each two adjacent structural beams, two ends of each busbar are suspended on two structural beams via the insulator strings, wherein the horizontal slope of the busbars is lower than 1% degree, and horizontal heights of the busbars are reduced gradually from two sides of one structural beam. The tubular busbar mounting structure is used for rugged slope grounds. As the horizontal heights of the tubular busbar are reduced in double slope directions, are consistent with trend of the slope of the grounds as much as possible and are reduced by half of the height formed due to slope of one-way slope ground on the same conditions, the volume of stones and earthwork of the grounds and total civil work expenses can be reduced, influence to environment is reduced and energy sources are saved.

Description

Column pipe bus mounting structure

Technical field

The utility model relates to pipe bus mounting structure, relates in particular to column pipe bus mounting structure.

Background technology

At present, adopt the power distribution equipment of column pipe bus mounting structure because phase spacing is less, the pipe bus is suspended under the frame girder by insulator string, good to place adaptability, anti-seismic performance is good, framework stressed little, arrange clear, relatively save take up an area of, operation maintenance is convenient, cost is moderate, thereby higher in earthquake intensity, be used widely in the 220 KV distribution devices in the bigger transformer station of the place gradient.

In view of technological requirement, for guaranteeing the pipe bus unlikely generation of the slip in gold utensil stress excessive in process of expansion and contraction to insulator, outside the room power distribution equipment place be parallel to the generatrix direction two ends framework discrepancy in elevation should be not excessive, require in " outside the room power distribution equipment be parallel to the place design grade of generatrix direction should not be " greater than 1%, so in place when design, generally can be according to requiring " outdoor power distribution unit is parallel to the place design grade of generatrix direction should not be greater than 1% " along being parallel to pipe generatrix direction place design grade among " transformer station's General Layout Design technical regulation " DL/T5056-1996, and be the unidirectional slope of looking for.When the physical relief of transformer station is smooth, satisfy this requirement and be easier to, the place earthwork is also less; But when transformer station is in mountain area, knob, satisfy this requirement, the district's place earthwork of standing is bigger.Particularly along with the construction of high voltage large-scale substation, the outdoor power distribution unit place is increasing, even by 0.5% drainage grade, still more than 1m, this is just satisfied electric charged required distance to the discrepancy in elevation, power transformation framework root is opened and the design of the rule class on basis all causes difficulty.Because of China's southwest overwhelming majority is in mountain area, hills, the physical relief gradient is bigger, and often flat, all unavoidable bigger quantities of barricade in some engineering fields is unfavorable for the enforcement of environmental friendliness, resource-effective building policy.

The utility model content

The technical problem that the utility model solves provides a kind of column pipe bus mounting structure that reduces the place civilwork engineering quantity.

The technical scheme that its technical problem that solves the utility model adopts is: column pipe bus mounting structure, the frame girder that comprises layout in a row, the both sides of described frame girder are provided with insulator string, be provided with the pipe bus between the adjacent frame beam, described pipe bus two ends are suspended in respectively on two adjacent frame girders by insulator string, the horizontal gradient of described pipe bus is less than 1% degree, from the wherein outwards level height reduction successively of pipe bus of the both sides of a frame girder.

Further, adjacent pipe bus connects by flexible conductor.

The beneficial effects of the utility model are: the domatic place that pipe bus mounting structure of the present utility model is used to rise and fall, because being two aspects, the level height of pipe bus arranges, the gradient and trend with the place is consistent as much as possible, half has been reduced because of the discrepancy in elevation that the gradient causes in unidirectional sloping place than equal conditions, reduce place earthwork, retaining wall quantities, the super dark displacement quantities in basis thus, finally reduced the civil engineering total cost.Adopt flexible conductor to connect between the pipe bus, can under the high situation about determining in slope, make the place gradient increase to 1.5%～3% degree, be controlled in 1% degree and connect the horizontal gradient that to manage bus itself, further reduced place earthwork and civil engineering total cost by flexible conductor; And the flexible conductor syndeton is simple, need not to increase cost.

Description of drawings

Fig. 1 is a schematic diagram of the present utility model;

Fig. 2 is a partial enlarged drawing of the present utility model;

Be labeled as among the figure: 1-domatic place, the 2-frame girder, the 3-insulator string, the 4-flexible conductor, 5-manages bus.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is further specified.

Column pipe bus mounting structure, the frame girder 2 that comprises layout in a row, the both sides of described frame girder 2 are provided with insulator string 3, be provided with pipe bus 5 between the adjacent frame beam 2, described pipe bus 5 two ends are suspended in respectively on two frame girders 2 by insulator string 3, the horizontal gradient of described pipe bus 5 is less than 1% degree, from the wherein outwards level height reduction successively of pipe bus 5 of the both sides of a frame girder 2.

Further, adjacent pipe bus 5 connects by flexible conductor 4.

Landform when domatic place 1 is a undulating state, when having at least two high, pipe bus 5 at high some place, each relative hillside fields also is installed in eminence, the pipe bus 5 of both sides reduces to both sides with landform, make the layout of pipe bus 5 be fluctuating shape layout, so just can greatly reduce pipe bus 5 single slopes and arrange needed earthworks.

Column pipe bus pipe bus mounting structure is applicable to larger mountain area, knob transformer station power distribution equipment, the power distribution equipment of 220 kilovoltage grades is a column pipe busbar arrangement outside the room, and the power distribution equipment place is along the pipe generatrix direction discrepancy in elevation when big, for reducing a station district grading cubic meter of stone excavated volume, the place gradient along the pipe generatrix direction can be designed to 1.5%～3%, be controlled at less than in 1% the scope and adopt column pipe bus mounting structure will manage the horizontal gradient of bus, to satisfy technology arrangement and rules requirement.Be described further below in conjunction with specific embodiment.

Embodiment:

Certain 500 kv substation scale: main transformer 3 * 750 megavolt-amperes; 220 kilovolts of outlets 14 times; 500 kilovolts of outlets 8 times.

This 500 kv substation station district physical relief is three small hills, the width in 220 KV distribution device places has reached 314m, and be that center is in small hill, if arrangement is 1% Dan Po by the gradient routinely, the discrepancy in elevation in place will reach 3.14m, the layout that is unfavorable for so very much electric equipment, in order to save the earth and rock works amount, guaranteeing outdoor power distribution unit safety, reliably, under the precondition of stable operation, adopt the column pipe bus mounting structure of the utility model, in conjunction with the characteristics of physical relief, top, three slopes is all along the axial two-way Cheng Po of pipe bus, and adopt flexible conductor to connect between the pipe bus and the suitable place gradient that strengthens, the drainage direction in place acts in accordance with physical features and is.

Though landform is comparatively complicated, design difficulty is bigger, but column pipe bus mounting structure can adapt to the place of this complexity, this makes the place design of transformer station merge fully with natural environment, reduced drainage distance, reduced the discrepancy in elevation of place side slope, thereby reduced the earth and rock works amount, saved the retaining wall quantities and reach 38% more than.Total can be saved about 1,520,000 yuan of construction investment, promptly saves expense, economic benefit and the obvious environment benefit of civil engineering gross investment about 7.6%.

Claims

1. column pipe bus mounting structure, the frame girder (2) that comprises layout in a row, the both sides of described frame girder (2) are provided with insulator string (3), be provided with pipe bus (5) between the adjacent frame beam (2), described pipe bus (5) two ends are suspended in respectively on two frame girders (2) by insulator string (3), the horizontal gradient of described pipe bus (5) is characterized in that less than 1% degree: from the wherein outwards level height reduction successively of pipe bus (5) of the both sides of a frame girder (2).

2. column pipe bus mounting structure according to claim 1 is characterized in that: adjacent pipe bus (5) connects by flexible conductor (4).