阅读说明：本技术 一种高海拔地区变电站330kV HGIS变电构架结构 (330kV HGIS power transformation framework structure of high-altitude area transformer substation ) 是由 常伟 李学鹏 顾群 申卫华 应捷 陈奇 雷蕾 于 2020-12-11 设计创作，主要内容包括：一种高海拔地区变电站330kV HGIS变电构架结构,包括构架柱,构架柱之间连接母线梁及出线梁,出线梁包括高跨出线梁、下层出线梁、上层出线梁及反向出线梁；母线梁与高跨出线梁平行设置,下层出线梁、上层出线梁与反向出线梁平行设置,反向出线梁与高跨出线梁相互垂直；母线梁与高跨出线梁均包括在同一水平面上设置的两根梁体,下层出线梁与上层出线梁设置于同一竖直面上,反向出线梁与该竖直面之间具有间距；高跨出线梁上设置第一方向出线挂线,下层出线梁、上层出线梁上设置第二方向出线挂线,反向出线梁与上层出线梁之间设置反向出线挂线,母线梁上设置母线挂线。本发明能较好的满足结构受力要求,同时节省占地、节约造价,方便布置。(A330 kV HGIS power transformation framework structure of a high-altitude area transformer substation comprises framework columns, bus beams and outgoing line beams are connected among the framework columns, and the outgoing line beams comprise high-span outgoing line beams, lower outgoing line beams, upper outgoing line beams and reverse outgoing line beams; the bus beam and the high-span outgoing line beam are arranged in parallel, the lower outgoing line beam, the upper outgoing line beam and the reverse outgoing line beam are arranged in parallel, and the reverse outgoing line beam is perpendicular to the high-span outgoing line beam; the bus beam and the high-span outgoing line beam both comprise two beam bodies arranged on the same horizontal plane, the lower outgoing line beam and the upper outgoing line beam are arranged on the same vertical plane, and a space is reserved between the reverse outgoing line beam and the vertical plane; the high-span outgoing beam is provided with a first-direction outgoing hanging wire, the lower-layer outgoing beam and the upper-layer outgoing beam are provided with a second-direction outgoing hanging wire, a reverse outgoing hanging wire is arranged between the reverse outgoing beam and the upper-layer outgoing beam, and the bus beam is provided with a bus hanging wire. The invention can better meet the stress requirement of the structure, saves the occupied area, saves the manufacturing cost and is convenient to arrange.)

1. The utility model provides a high altitude area transformer substation 330kV HGIS power transformation frame construction which characterized in that:

the bus outgoing beam comprises a high-span outgoing beam (6), a lower outgoing beam (7), an upper outgoing beam (8) and a reverse outgoing beam (9); the bus beam (5) and the high-span outgoing line beam (6) are arranged in parallel, the lower outgoing line beam (7) and the upper outgoing line beam (8) are arranged in parallel with the reverse outgoing line beam (9), and the reverse outgoing line beam (9) and the high-span outgoing line beam (6) are arranged in a mutually perpendicular mode; the bus beam (5) and the high-span outgoing line beam (6) both comprise two beam bodies arranged on the same horizontal plane, the lower outgoing line beam (7) and the upper outgoing line beam (8) are arranged on the same vertical plane, and a space is reserved between the reverse outgoing line beam (9) and the vertical plane; in the height direction, the position of the high-span outgoing line beam (6) is highest, the heights of the upper outgoing line beam (8), the reverse outgoing line beam (9) and the lower outgoing line beam (7) are sequentially reduced, and the bus bar beam (5) is not higher than the lower outgoing line beam (7); the high-span outgoing line beam (6) is provided with an outgoing line hanging line (10) in a first direction, the lower outgoing line beam (7) and the upper outgoing line beam (8) are provided with outgoing line hanging lines (10) in a second direction, a reverse outgoing line hanging line (11) is arranged between the reverse outgoing line beam (9) and the upper outgoing line beam (8), and a bus hanging line (12) is arranged on the bus beam (5).

2. The high-altitude area substation 330kV HGIS power transformation framework structure of claim 1, wherein:

the high-voltage power transmission line outgoing beam comprises a bus beam (5), a high-span line outgoing beam (6), a lower layer line outgoing beam (7), an upper layer line outgoing beam (8) and a reverse line outgoing beam (9), which are hinged with a framework column, wherein the framework column, the bus beam (5), the high-span line outgoing beam (6), the lower layer line outgoing beam (7), the upper layer line outgoing beam (8) and the chord splicing joint of the reverse line outgoing beam (9) are connected through flanges.

3. The high-altitude area substation 330kV HGIS power transformation framework structure of claim 1, wherein:

the outgoing line interval width of the framework column is 24m, and the bus interval width is 44 m.

4. The high-altitude area substation 330kV HGIS power transformation framework structure of claim 1, wherein:

the framework column comprises a framework column lower section (1) and a framework column upper section (2);

the lower section (1) of the framework column adopts a rectangular variable cross-section lattice column, the root opening size of the column bottom is 1.8m multiplied by 4.8m, and the root opening size of the column top is 1.8m multiplied by 1.8 m; the upper section (2) of the framework column adopts a rectangular equal-section lattice column, and the section size of the column is 1.8m multiplied by 1.8 m.

5. The high-altitude area substation 330kV HGIS power transformation framework structure of claim 1, wherein:

the bottom elevations of the bus beam (5) and the lower outlet beam (7) are 22 m; the beam bottom elevation of the reverse outgoing beam (9) is 28 m; the beam bottom elevation of the upper layer outgoing line beam (8) is 34 m; the height of the bottom of the high-span line beam (6) is 38.5 m.

6. The high-altitude area substation 330kV HGIS power transformation framework structure of claim 1, wherein:

the bus beam (5), the high-span outgoing line beam (6) and the lower outgoing line beam (7) are all rectangular equal-section lattice beams;

the section sizes of the bus beam (5), the high-span outgoing line beam (6) and the lower outgoing line beam (7) are 1.8m multiplied by 2.0 m.

7. The high-altitude area substation 330kV HGIS power transformation framework structure of claim 1, wherein:

the upper layer outgoing line beam (8) and the reverse outgoing line beam (9) both adopt rectangular equal-section lattice beams;

the section size of the upper layer outgoing line beam (8) and the reverse outgoing line beam (9) is 1.8m multiplied by 1.8 m.

8. The high-altitude area substation 330kV HGIS power transformation framework structure of claim 1, wherein:

and the top of each framework column is provided with a ground wire column (3), and the top of each ground wire column (3) is provided with a lightning rod (4).

9. The high-altitude area substation 330kV HGIS power transformation framework structure of claim 8, wherein:

the ground wire column (3) adopts a variable-section lattice type column body.

10. The high-altitude-area substation 330kV HGIS power transformation framework structure of claim 8 or 9, wherein: all web members and chords of the ground wire column (3) are connected by intersecting welding.

Technical Field

The invention belongs to the field of transformer substation design, and relates to a 330kV HGIS transformer framework structure of a transformer substation in a high-altitude area.

Background

At present, the scheme of combining steel pipes A-shaped columns and triangular lattice beams is mostly adopted in a 330kV power distribution device of a conventional 750kV/330kV transformer substation. The altitude of a 750kV transformer station site in Qinghai Hainan is 2950m, a 330kV distribution device adopts an HGIS (hybrid gas insulated switchgear) C-shaped arrangement scheme, a framework of the 330kV HGIS C-shaped distribution device belongs to a novel structural system no matter the distribution is arranged from the structural system, or the span and the stress condition of a beam, wherein, the bus bar beam has large span, one side needs to bear the pull force of 6 leads, the outgoing direction is two-way outgoing lines towards the north and east, the two-layer outgoing line towards the north is adopted, the single-layer outgoing line towards the east is adopted, and the three outlet heights are all different, so that the body of the framework column is sheared, the single-side tension of the upper part is larger, the beam-column connecting nodes of the conventional scheme of the steel pipe A-column combined triangular lattice beam are more, the welding workload at the bracket is large, the stress is complex, the outlet wires are arranged in two directions, the deflection control difficulty of the column top of the steel pipe A-column is large, and the steel pipe A-column combined triangular lattice beam is not the optimal structure type meeting the process requirements.

Disclosure of Invention

The invention aims to solve the problems of complex structure, large occupied area, high manufacturing cost and uneven stress of a steel pipe A-shaped column combined triangular lattice type beam in the prior art, and provides a 330kV HGIS power transformation framework structure of a high-altitude area transformer substation, which can better meet the stress requirement of the structure, saves the occupied area and the manufacturing cost, and is convenient to arrange.

In order to achieve the purpose, the invention has the following technical scheme:

a330 kV HGIS power transformation framework structure of a high-altitude area transformer substation comprises a plurality of framework columns, a bus beam and a plurality of outgoing line beams are connected among the framework columns, and each outgoing line beam comprises a high-span outgoing line beam, a lower outgoing line beam, an upper outgoing line beam and a reverse outgoing line beam; the bus beam and the high-span outgoing line beam are arranged in parallel, the lower outgoing line beam, the upper outgoing line beam and the reverse outgoing line beam are arranged in parallel, and the reverse outgoing line beam and the high-span outgoing line beam are arranged vertically; the bus beam and the high-span outgoing line beam both comprise two beam bodies arranged on the same horizontal plane, the lower outgoing line beam and the upper outgoing line beam are arranged on the same vertical plane, and a space is reserved between the reverse outgoing line beam and the vertical plane; in the height direction, the position of the high-span outgoing line beam is highest, the heights of the upper outgoing line beam, the reverse outgoing line beam and the lower outgoing line beam are sequentially reduced, and the bus beam is not higher than the lower outgoing line beam; the high-span outgoing beam is provided with an outgoing hanging wire in a first direction, the lower outgoing beam and the upper outgoing beam are provided with outgoing hanging wires in a second direction, a reverse outgoing hanging wire is arranged between the reverse outgoing beam and the upper outgoing beam, and a bus hanging wire is arranged on the bus beam.

Preferably, the bus beam, the high-span outgoing line beam, the lower outgoing line beam, the upper outgoing line beam and the reverse outgoing line beam are hinged with the framework column, and the chord splicing joints of the framework column, the bus beam, the high-span outgoing line beam, the lower outgoing line beam, the upper outgoing line beam and the reverse outgoing line beam are connected through flanges.

Preferably, the outlet spacing width of the framework column is 24m, and the bus spacing width is 44 m.

Preferably, the framework column comprises a framework column lower section and a framework column upper section; the lower section of the framework column adopts a rectangular variable-section lattice column, the root opening size of the column bottom is 1.8m multiplied by 4.8m, and the root opening size of the column top is 1.8m multiplied by 1.8 m; the upper section of the framework column adopts a rectangular equal-section lattice column, and the section size of the column is 1.8m multiplied by 1.8 m.

Preferably, the bottom elevations of the bus beam and the lower outgoing line beam are 22 m; the beam bottom elevation of the reverse outgoing beam is 28 m; the beam bottom elevation of the upper layer outgoing line beam is 34 m; the height of the bottom of the high-span line beam (6) is 38.5 m.

Preferably, the bus beam, the high-span outgoing line beam and the lower outgoing line beam are all rectangular equal-section lattice beams; the section sizes of the bus beam, the high-span outgoing line beam and the lower outgoing line beam are 1.8m multiplied by 2.0 m.

Preferably, the upper layer outgoing line beam and the reverse outgoing line beam both adopt rectangular equal-section lattice beams; the section size of the upper layer outgoing line beam and the section size of the reverse outgoing line beam are 1.8m multiplied by 1.8 m.

Preferably, the top of the frame column is provided with a ground wire column, and the top of the ground wire column is provided with a lightning rod.

Preferably, the ground wire column is a variable-section lattice column.

Preferably, all web members and chords of the ground wire column are connected by intersecting welding.

Compared with the prior art, the invention has the following beneficial effects: compared with the existing 330kV double-layer and single-direction outgoing structure, the double-layer and two-direction outgoing structure can be realized, the 330kV HGIS power transformation frame structure effectively reduces the occupied area, and meanwhile saves earthwork and foundation engineering quantity. In addition, compared with the existing double-layer single-side wire outlet framework, the double-layer and bidirectional wire outlet transformation framework can reduce the steel consumption. The power transformation framework structure also optimizes the outgoing line arrangement scheme, can reduce the outgoing line deflection angle, saves the outgoing line interval, thereby facilitating the electrical arrangement and being particularly suitable for high-altitude areas.

Drawings

FIG. 1 is a schematic perspective view of a 330kV HGIS power transformation framework structure of a high-altitude area substation of the present invention;

FIG. 2 is a schematic diagram of the structure of the cross section of the outgoing line interval of the power transformation framework of the present invention;

FIG. 3 is a schematic perspective view of a power transformation architecture of the present invention;

FIG. 4 is a schematic view of a bus side beam and column configuration of the present invention;

FIG. 5(a) is a schematic structural view of an upper and lower double-layer outgoing beam and column of the present invention;

FIG. 5(b) is a schematic view of the structure of the reverse outgoing beam and column of the present invention;

FIG. 6(a) is a schematic sectional view of the high-span outgoing beam, the bus beam and the lower outgoing beam of the present invention;

FIG. 6(b) is a schematic cross-sectional view of the reverse outgoing beam and the upper outgoing beam of the present invention;

FIG. 7 is a schematic view of a frame post structure of the present invention;

fig. 8 is a schematic structural view of the ground post and the lightning rod of the present invention;

in the drawings: 1-lower section of framework column; 2-upper section of framework column; 3-a ground pole; 4-a lightning rod; 5-a bus bar beam; 6-high span wire outgoing beam; 7-lower layer outgoing line beam; 8-upper layer outgoing line beam; 9-reverse outlet beam; 10-outgoing and hanging wires; 11-reverse outgoing and hanging; 12-bus hanging wire.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, a 330kV HGIS power transformation framework structure of a high-altitude area transformer substation comprises a plurality of framework columns, wherein a bus beam 5 and a plurality of outlet beams are connected between the framework columns, four framework columns are arranged in the embodiment, the four framework columns are arranged in a rectangular shape, and each outlet beam comprises a high-span outlet beam 6, a lower outlet beam 7, an upper outlet beam 8 and a reverse outlet beam 9.

The bus beam 5 and the high-span outgoing line beam 6 are arranged in parallel, the lower outgoing line beam 7, the upper outgoing line beam 8 and the reverse outgoing line beam 9 are arranged in parallel, and the reverse outgoing line beam 9 and the high-span outgoing line beam 6 are arranged perpendicular to each other. The bus beam 5 and the high-span outgoing line beam 6 both comprise two beam bodies arranged on the same horizontal plane, the lower outgoing line beam 7 and the upper outgoing line beam 8 are arranged on the same vertical plane, and a space is reserved between the reverse outgoing line beam 9 and the vertical plane; in the height direction, the position of the high-span outgoing line beam 6 is highest, the heights of the upper outgoing line beam 8, the reverse outgoing line beam 9 and the lower outgoing line beam 7 are sequentially reduced, and the bus bar beam 5 is not higher than the lower outgoing line beam 7.

The high-span outgoing beam 6 is provided with an outgoing hanging wire 10 in a first direction, the lower outgoing beam 7 and the upper outgoing beam 8 are provided with an outgoing hanging wire 10 in a second direction, the outgoing hanging wire 10 in the first direction is perpendicular to the outgoing hanging wire 10 in the second direction, a reverse outgoing hanging wire 11 is arranged between the reverse outgoing beam 9 and the upper outgoing beam 8, and the bus beam 5 is provided with a bus hanging wire 12.

Referring to fig. 3, 4, 5(a) and 5(b), the frame outgoing line interval width is 24m, the bus bar interval width is 44m, and the beam bottom elevations of the outgoing line beam and the bus bar beam are not at the same height. The beam bottom elevations of the lower outgoing line beam and the bus beam are 22 m; the beam bottom elevation of the reverse outgoing beam is 28 m; the beam bottom elevation of the upper layer outgoing line beam is 34 m; the height of the bottom of the high-span outgoing line beam is 38.5 m.

The bus beam 5, the high-span outgoing line beam 6, the lower outgoing line beam 7, the upper outgoing line beam 8 and the reverse outgoing line beam 9 are hinged with the framework column; the chord splicing joints of the framework columns and the framework beams are connected through flanges to form an integral stress system.

Referring to fig. 6(a) and 6(b), the bus bar beam 5, the high-span outgoing line beam 6, and the lower outgoing line beam 7 all adopt rectangular lattice type beams with equal cross sections, wherein the cross section dimensions of the bus bar beam 5, the high-span outgoing line beam 6, and the lower outgoing line beam 7 are 1.8m (width) × 2.0m (height). The upper layer outgoing line beam 8 and the reverse outgoing line beam 9 both adopt rectangular equal-section lattice type beams, wherein the section sizes of the upper layer outgoing line beam 8 and the reverse outgoing line beam 9 are 1.8m (width) × 1.8m (height).

Referring to fig. 7, the frame column comprises a frame column lower section 1 and a frame column upper section 2, the frame column lower section 1 is a rectangular variable cross-section lattice column, the column bottom root opening size is 1.8m (short direction) × 4.8m (long direction), and the column top cross-section is 1.8m (short direction) × 1.8m (long direction). The upper section 2 of the framework column adopts a rectangular equal-section lattice column, and the section size of the column is 1.8m (short direction) × 1.8m (long direction).

Referring to fig. 8, the top of the frame column is provided with a ground wire column 3, and the top of the ground wire column 3 is provided with a lightning rod 4. The ground wire column 3 adopts a rectangular variable-section lattice column, and all web members and the chord members are connected by penetration welding. The lightning rod 4 adopts a single steel tube section needle body.

The 330kV HGIS power transformation framework structure of the high-altitude area transformer substation has the following advantages:

(1) the occupied area is small; compared with the existing 330kV double-layer and single-direction outgoing line framework, the single span of which is generally 24m, taking a 3-loop outgoing line framework as an example, and the total occupied land length of which is 72m (taking the central line of a framework column), the double-layer and double-direction outgoing line framework provided by the invention can reduce the occupied land length by 24 m. The size of the root opening of the framework column is 1.8m (short direction) × 4.8m (long direction).

(2) The amount of earthwork and basic engineering is saved: compared with the existing double-layer single-side wire outlet framework, the double-layer and bidirectional wire outlet transformation framework reduces the earthwork engineering quantity by about 165 square and reduces the foundation concrete engineering quantity by about 49 square.

(3) The steel consumption is saved: compared with the existing double-layer single-side wire outlet framework, the double-layer and bidirectional wire outlet transformation framework reduces the steel consumption by about 20 tons.

(4) Convenient electrical arrangement: the power transformation framework optimizes the outgoing line arrangement scheme, reduces the outgoing line deflection angle, saves the outgoing line interval and facilitates the electrical arrangement.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.