CN205135023U - Circuit framework and overhead line structure - Google Patents
Circuit framework and overhead line structure Download PDFInfo
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- CN205135023U CN205135023U CN201520970222.6U CN201520970222U CN205135023U CN 205135023 U CN205135023 U CN 205135023U CN 201520970222 U CN201520970222 U CN 201520970222U CN 205135023 U CN205135023 U CN 205135023U
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- stringing
- stringing portion
- overhead line
- circuit framework
- passage
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Abstract
The utility model relates to a circuit framework and overhead line structure, wherein, the circuit framework includes the bed frame, is equipped with level first overhead line passageway and second overhead line passageway side by side on the bed frame, is equipped with upper and lower first overhead line portion, second overhead line portion side by side in the first overhead line passageway, first overhead line portion second overhead line portion respectively is equipped with three overhead line point, be equipped with upper and lower third overhead line portion, fourth overhead line portion side by side in the second overhead line passageway, third overhead line portion with in the middle of the fourth overhead line portion, one of them is equipped with two overhead line points, and another is equipped with an overhead line point. Wherein two groups are installed respectively on the overhead line point of first overhead line portion and second overhead line portion, one of them strip lead of another group is installed on the overhead line point of third overhead line portion, and all the other two strip leads are installed on the overhead line point of fourth overhead line portion. Area is little, the line is convenient, the investment is little.
Description
Technical field
The utility model belongs to power transmission and distribution field, is specifically related to a kind of circuit framework and stringing framework.
Background technology
A power plant two units two return back out line and add a standby electric power lead-in wire, usually need three loop overhead wires to connect host groups and booster stations.In order to using water wisely, the type of cooling of inland power plant many employings circulating cooling water tower, and cooling tower is arranged in arranges, to shorten the length of circulating water pipe near main building A.Now, three loop overhead wires of main building and booster stations are connected between cooling tower.As adopted the mode of pylon three return line groups to be arranged in order from top to bottom, then the wire discrepancy in elevation excessive cause connect inconvenience and cost is high.Therefore, three conventional loop overhead wires adopt three independently framework strung alongside.But each framework width, about 30-45 rice, takes up an area span and is about between 90-135 rice, cause that the overall floor space of power plant is large, investment is large, and two cold spacing of anhydrating between tower increase, and increase running cost.
Summary of the invention
Based on this, the utility model is the defect overcoming prior art, a kind of circuit framework and stringing structure are provided, floor space are little, line is convenient, invest little.
Its technical scheme is as follows:
Circuit framework, comprise pedestal, pedestal is provided with the first stringing passage and the second stringing passage of horizontal Tile, is provided with the first stringing portion side by side up and down, the second stringing portion in the first stringing passage, and described first stringing portion, described second stringing portion are respectively provided with three stringing points; Be provided with the 3rd stringing portion side by side up and down, the 4th stringing portion in described second stringing passage, in the middle of described 3rd stringing portion and described 4th stringing portion, one of them is provided with two stringing points, and another is provided with a stringing point.
Wherein in an embodiment, the width of described first stringing passage is greater than the width of described second stringing passage.
Wherein in an embodiment, described pedestal comprises three pillars of two crossbeams side by side up and down and horizontal Tile, the two ends of described crossbeam are located at respectively by two described pillars, the middle part of described crossbeam is located at by another pillar, form described first stringing passage, described second stringing passage between described pillar successively, described stringing point is located on described crossbeam.
Wherein in an embodiment, described pillar comprises two support bars, and the upper end of two described support bars connects makes two described support bars form " people " font.
Wherein in an embodiment, circuit framework also includes lightning-arrest terminal, and described lightning-arrest terminal is located at the top of described pillar.
Wherein in an embodiment, described 3rd stringing portion is higher than described 4th stringing portion, and the height in described 4th stringing portion meets line group minimum band electrical distance over the ground; Described first stringing portion is higher than described second stringing portion, and the height in described second stringing portion meets line group minimum band electrical distance over the ground.
A kind of stringing structure, comprise the circuit framework described in above-mentioned any one, described circuit framework is located between host groups and booster stations, and between two cooling towers, three line groups connect the pin interfaces of host groups and booster stations respectively, and wherein two line groups are installed on the stringing point in the first stringing portion and the second stringing portion respectively; Wherein one bar of lead-in wire of another line group is installed on the stringing point in the 3rd stringing portion, and all the other two bars of lead-in wires are installed on the stringing point in the 4th stringing portion; Or wherein two bars of lead-in wires are installed on the stringing point in the 3rd stringing portion, and all the other one bar of lead-in wires are installed on the stringing point in the 4th stringing portion.
Wherein in an embodiment, described 3rd stringing portion is higher than described 4th stringing portion, and the height of the pin interfaces of the height in described 4th stringing portion and host groups or booster stations is concordant; Described first stringing portion is higher than described second stringing portion, and the height of the pin interfaces of the height in described second stringing portion and host groups or booster stations is concordant.
The beneficial effects of the utility model are:
Thermal power plant's host groups is employing three independent framework side by side to traditional stringing mode of booster stations three return line group, consider the minimum safe distance between lead-in wire, between lead-in wire and ground, the horizontal span of three independent frameworks needs 9 width tiled side by side that go between, and span is large, occupation of land is large, investment is large; In the utility model, the first stringing passage and the second stringing passage horizontal Tile, and by side by side up and down two-layer for being divided into of wherein one group of line group, actual horizontal span needs 5 width tiled side by side that go between.So, the horizontal span of circuit framework is made to be reduced to the width of 5 lead-in wire tilings from the width of 9 lead-in wire tilings, the horizontal span of circuit framework is significantly reduced, thus reduce floor space, reduction investment, and the distance between two cooling towers can arrange nearer, reduce water resistance, can running cost be reduced.
On the other hand, stringing portion only has two-layer up and down, and the lead-in wire be mounted to circuit framework from host groups or booster stations is unlikely to excessive relative to the discrepancy in elevation change of host groups or booster stations, does not affect the wiring of lead-in wire.
Accompanying drawing explanation
Fig. 1 is the structural representation of the circuit framework of the utility model embodiment;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the sectional view of stringing structure with reference to A-A height in Fig. 1 of the utility model embodiment;
Fig. 4 is the sectional view of stringing structure with reference to B-B height in Fig. 1 of the utility model embodiment.
Description of reference numerals:
100, host groups, 200, booster stations, 300, cooling tower, 400, circuit framework, the 401, first stringing passage, the 402, second stringing passage, 410, pillar, 411, support bar, 420, crossbeam, 421, the first stringing portion, the 422, second stringing portion, the 423, the 3rd stringing portion, 424, the 4th stringing portion, 430, lightning-arrest terminal, the 510, first loop, 520, second servo loop, 530, standby electric power line.
Detailed description of the invention
Below the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
As shown in Figure 3,4, stringing structure comprises circuit framework 400, three line groups, circuit framework 400 is located between host groups 100 and booster stations 200, and between two cooling towers 300, three line groups connect the pin interfaces of host groups 100 and booster stations 200 respectively, and each line group has three lead-in wires.
As shown in Figure 1, circuit framework 400 comprises pedestal, pedestal comprises two crossbeams 420 side by side up and down and three pillars 410 of horizontal Tile, the two ends of crossbeam 420 are located at respectively by two pillars 410, the middle part of crossbeam 420 is located at by another pillar 410, the width forming the first stringing passage 401, second stringing passage 402, first stringing passage 401 between pillar 410 is successively greater than the width of the second stringing passage 402.The top of pillar 410 is provided with lightning-arrest terminal 430.For the crossbeam 420 that position is higher, its part being positioned at the first stringing passage 401 is that the first stringing portion 421 of stringing portion 421, first is provided with three stringing points; Its part being positioned at the second stringing passage 402 is that the 3rd stringing portion 423 of stringing portion the 423, three is provided with a stringing point.For the crossbeam 420 that position is lower, its part being positioned at the first stringing passage 401 is that the second stringing portion 422 of stringing portion 422, second is provided with three stringing points; Its part being positioned at the second stringing passage 402 is that the 4th stringing portion 424 of stringing portion the 424, four is provided with two stringing points.(be not limited thereto, can be that the 3rd stringing portion 423 is provided with two stringing points, the 4th stringing portion 424 be provided with a stringing point, only need meet and can install three wires in the second stringing passage 402)
As shown in Figure 1,3, three line groups are respectively the first loop 510, second servo loop 520, standby electric power line 530, three lead-in wires in the first loop 510 are installed on three stringing points in the second stringing portion 422, and wherein two lead-in wires of standby electric power line 530 are installed on two stringing points in the 4th stringing portion 424.The height in the second stringing portion 422, the 4th stringing portion 424 is concordant with the height of host groups 100 pin interfaces, and concordant with the height of the pin interfaces of booster stations 200.As shown in Fig. 1,4, three lead-in wires of second servo loop 520 are installed on three stringing points in the first stringing portion 421, and remainder lead-in wire of standby electric power line 530 is installed on the stringing point in the 3rd stringing portion 423.(be not limited thereto, the first stringing portion, the second stringing portion or the 3rd stringing portion and the 4th stringing portion can be selected according to scene in three installation sites of line group on circuit framework 400, make the volume of whole circuit framework, span reduce as far as possible, and make lead-in wire be unlikely to excessive relative to wiring point)
Preferably, the height of the crossbeam 420 that position is lower is 27m, meets line group minimum band electrical distance over the ground, and reduces the whole height of pedestal as far as possible.The higher crossbeam 420 in position is highly 39m, the overall height of pedestal is 39.3m, under this height, do not need to adopt complex structure, consumptive material is many, cost is high steel tower, and can use herringbone structure as shown in Figure 2, pillar 410 comprises two support bars 411, the upper end of two support bars 411 connects makes two support bars 411 form " people " font, make whole circuit framework 400 structure simple, rolled steel dosage is few, and cost is low.Simultaneously, the width of the first stringing passage 401 is 34m, be greater than the width 24m of the second stringing passage 402, the width of the first stringing passage and the width of the second stringing passage are selected according to the safe distance between adjacent two lead-in wires, make the floor space of circuit framework 400 as far as possible little, reduce use amount, the investment reduction cost on steel and basis.
The scheme of traditional three independent frameworks side by side, the horizontal span of three frameworks is 9 width tiled side by side that go between, and takes up an area span and is generally 90m to 135m.In the present embodiment, first stringing passage 401 and the second stringing passage 402 horizontal Tile, and by side by side up and down two-layer for being divided into of wherein one group of line group, actual horizontal span is 5 width tiled side by side that go between, preferably, first stringing passage 401 width 34m, the second stringing passage 402 width 24m, the overall width 58m of circuit framework 400.So, the horizontal span of circuit framework 400 significantly reduces, and reduce floor space, reduce investment, and the distance between two cooling towers 300 can arrange nearer, reduce water resistance, reduce running cost.For the steam power plant of 2*1000MW, circuit framework 400 is set between two cooling towers, two cooling tower spacing 222.1m, air line distance 99.6m between circuit framework 400 and booster stations 200, the air line distance 99.2m of circuit framework 400 and host groups 100, the wide 58m of circuit framework 400, height 39.3m, lightning-arrest terminal 430 height 8.5m, whole framework meets the indices requirement such as charged safe distance and hotline maintenance distance, and comprehensive cost is estimated to save about 4,000,000 yuan.
On the other hand, line group is installed on a needs on circuit framework 400 and is divided into two-layer up and down, be mounted to lead-in wire circuit framework 400 from host groups 100 or booster stations 200 and be unlikely to excessive relative to the discrepancy in elevation change of the pin configuration of host groups 100 or booster stations 200, do not affect the wiring of lead-in wire.
Each technical characteristic of above embodiment can combine arbitrarily, for making description succinct, all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this manual is recorded.
Above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (8)
1. a circuit framework, it is characterized in that, comprise pedestal, pedestal is provided with the first stringing passage and the second stringing passage of horizontal Tile, be provided with the first stringing portion side by side up and down, the second stringing portion in first stringing passage, described first stringing portion, described second stringing portion are respectively provided with three stringing points;
Be provided with the 3rd stringing portion side by side up and down, the 4th stringing portion in described second stringing passage, in the middle of described 3rd stringing portion and described 4th stringing portion, one of them is provided with two stringing points, and another is provided with a stringing point.
2. circuit framework according to claim 1, is characterized in that, the width of described first stringing passage is greater than the width of described second stringing passage.
3. circuit framework according to claim 1, it is characterized in that, described pedestal comprises three pillars of two crossbeams side by side up and down and horizontal Tile, the two ends of described crossbeam are located at respectively by two described pillars, the middle part of described crossbeam is located at by another pillar, form described first stringing passage, described second stringing passage between described pillar successively, described stringing point is located on described crossbeam.
4. circuit framework according to claim 3, is characterized in that, described pillar comprises two support bars, and the upper end of two described support bars connects makes two described support bars form " people " font.
5. circuit framework according to claim 3, is characterized in that, also includes lightning-arrest terminal, and described lightning-arrest terminal is located at the top of described pillar.
6. the circuit framework according to any one of claim 1 to 5, is characterized in that, described 3rd stringing portion is higher than described 4th stringing portion, and the height in described 4th stringing portion meets line group minimum band electrical distance over the ground; Described first stringing portion is higher than described second stringing portion, and the height in described second stringing portion meets line group minimum band electrical distance over the ground.
7. a stringing structure, it is characterized in that, comprise the circuit framework described in any one of claim 1 to 6, described circuit framework is located between host groups and booster stations, and between two cooling towers, three line groups connect the pin interfaces of host groups and booster stations respectively, and wherein two line groups are installed on the stringing point in the first stringing portion and the second stringing portion respectively;
Wherein one bar of lead-in wire of another line group is installed on the stringing point in the 3rd stringing portion, and all the other two bars of lead-in wires are installed on the stringing point in the 4th stringing portion; Or wherein two bars of lead-in wires are installed on the stringing point in the 3rd stringing portion, and all the other one bar of lead-in wires are installed on the stringing point in the 4th stringing portion.
8. stringing structure according to claim 7, is characterized in that, described 3rd stringing portion is higher than described 4th stringing portion, and the height of the pin interfaces of the height in described 4th stringing portion and host groups or booster stations is concordant; Described first stringing portion is higher than described second stringing portion, and the height of the pin interfaces of the height in described second stringing portion and host groups or booster stations is concordant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520970222.6U CN205135023U (en) | 2015-11-27 | 2015-11-27 | Circuit framework and overhead line structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520970222.6U CN205135023U (en) | 2015-11-27 | 2015-11-27 | Circuit framework and overhead line structure |
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| Publication Number | Publication Date |
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| CN205135023U true CN205135023U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520970222.6U Active CN205135023U (en) | 2015-11-27 | 2015-11-27 | Circuit framework and overhead line structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350797A (en) * | 2015-11-27 | 2016-02-24 | 中国能源建设集团广东省电力设计研究院有限公司 | Line framework and wire stringing structure |
-
2015
- 2015-11-27 CN CN201520970222.6U patent/CN205135023U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350797A (en) * | 2015-11-27 | 2016-02-24 | 中国能源建设集团广东省电力设计研究院有限公司 | Line framework and wire stringing structure |
| CN105350797B (en) * | 2015-11-27 | 2017-12-08 | 中国能源建设集团广东省电力设计研究院有限公司 | Circuit framework and stringing structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |