CN109505451A - Torch-shaped single loop transmission tower - Google Patents
Torch-shaped single loop transmission tower Download PDFInfo
- Publication number
- CN109505451A CN109505451A CN201811405019.9A CN201811405019A CN109505451A CN 109505451 A CN109505451 A CN 109505451A CN 201811405019 A CN201811405019 A CN 201811405019A CN 109505451 A CN109505451 A CN 109505451A
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- China
- Prior art keywords
- tower
- inverted trapezoidal
- window
- torch
- single loop
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention discloses a kind of torch-shaped single loop transmission towers, belong to transmission tower field, including the inverted trapezoidal insulation tower window being connected with tower body, the both ends of the top margin of inverted trapezoidal insulation tower window are connected separately with earth wire support, side cross-arm are connected separately at the top of two sides；Insulator string is equipped in the middle part of the top margin of inverted trapezoidal insulation tower window, positioned at being that part inverted trapezoidal insulation tower window in insulation range that radius is formed uses insulating materials using insulator string as the center of circle, secured electrical range；The two sides of inverted trapezoidal insulation tower window use Steel material.The present invention is by being designed as star for tower head, greatly reduce tower window ara, and then the volume and weight of tower head are reduced, it can adapt to that geology is more soft and corridor is limited the transmission line of electricity landform in area and uses, additionally it is possible to reduce use, the reduction material cost of tower material index.
Description
Technical field
The invention belongs to high-voltage power transmission tower field, specifically a kind of torch-shaped single loop transmission tower.
Background technique
The pattern of transmission tower used in high voltage power transmission is varied, different according to transmitting loop, function, material etc.
Type.Single loop transmission tower is one of which, and representing tower includes wineglass tower, cat-head transmission tower.
Wineglass tower conducting wire using horizontally arranged, be applied to more ice covering thickness it is biggish in, heavy icing area.It applies and is repeating ice formation
When, it is avoided that flashover caused by conducting wire ice-shedding.Cat head tower conducting wire uses rounded projections arranged, which occupies corridor resource
It is less, in light ice formation using wide, by taking conventional 220kV transmission line of electricity as an example, projected using the cat-head transmission tower conducting wire of triangle arrangement
Width is 4.6 meters small compared with wineglass tower, and width of corridor can be obviously reduced.But since cat-head transmission tower conducting wire uses triangle arrangement, lead to tower
Grease head highness is big, tower weight is heavier.Identical when exhaling high, cat-head transmission tower tower weighs 9% or so than wineglass tower again.The structure of wineglass tower and cat-head transmission tower
On all exist and crank arm K node.
From the foregoing, it will be observed that the routine tower such as wineglass tower and cat-head transmission tower cannot take into account tower material index and width of corridor.Meanwhile for
Large span power transmission shaft tower, load are far longer than conventional shaft tower, while front and back side span difference in size great disparity, and there are very big
The outer torque of plane.K node of cranking arm shows well when bearing plane internal loading, but will appear deformation when bearing torque outside plane
Phenomena such as excessive, node unstability.
Based on this, this case application is proposed.
Summary of the invention
It cannot be considered in terms of tower material index and width of corridor to solve conventional tower in the prior art, while K node is in Great span
There are problems that security risk under transmission line of electricity load.The present invention provides a kind of torch-shaped single loop transmission tower, tower heavy phase
It is lighter compared with the two, width of corridor is small, while eliminating the K node structure of traditional tower, can adapt to single loop large span power transmission
Route uses.
To achieve the above object, the scheme that the present invention uses is as follows: torch-shaped single loop transmission tower, including tower body, tower
The inverted trapezoidal insulation tower window that leg is connected with tower body, the both ends of the top margin of inverted trapezoidal insulation tower window are connected separately with earth wire support,
Side cross-arm is connected separately at the top of two sides.It is equipped with insulator string in the middle part of the top margin of inverted trapezoidal insulation tower window, is located at insulation
The part inverted trapezoidal insulation tower window in insulation range that string is the center of circle, secured electrical range is radius formation is using insulating materials
(GFRP).The two sides of inverted trapezoidal insulation tower window use Steel material.
In above-mentioned tower head structure, middle phase conductor passes through among tower body, and the rod piece in interstice coverage is answered using insulation
Condensation material component is simultaneously coloured using red pigment, other two-phase wire arrangements are in tower head two sides.It looks from a distance, ground wire cross-arm,
The torch that side cross-arm and lower part tower body blaze as one.Heretofore described side is the description under positive angle.
Herein described secured electrical range due electric clearance or air insulation clearance between conducting wire and tower head, the electric clearance
Be calculated as it is known to those skilled in the art that not being developed in details herein.
The present invention is further provided that at the outer end endpoint that side cross-arm is horizontally disposed, horizontal lower side bottom
Equipped with I type insulator string.
The present invention is further provided that inverted trapezoidal insulation tower window is the inverted trapezoidal truss mould built by several pole stocks
Block, several rectangular truss of inverted trapezoidal truss module are built with English truss, for hang insulator string rectangular truss or
V-shape window mouth is equipped at English truss.
The present invention is further provided that the side of rectangular truss uses three-legged structure using intersection construction, English truss.
The present invention be further provided that the top of inverted trapezoidal derrick tower window two sides be overlapped with the side of side cross-arm, its
Top margin two sides are overlapped with earth wire support respectively, make the quick biography that can be realized power between earth wire support and inverted trapezoidal insulation tower window
It passs, the load that somewhere is born is dispersed to other component, structure, help the ability for improving the bearing load of tower head.
The present invention is further provided that the shaft tower is Great span tower.
The present invention is further provided that the water for being equipped in inverted trapezoidal insulation tower window and connecting with the lower side of two sides cross-arm
Flat connecting rod.
On the one hand above structure setting can reinforce the bonding strength between side cross-arm and inverted trapezoidal insulation tower window, improve tower
The globality of head, on the other hand it can make load suffered by the cross-arm of side be transferred to the other side by the waling stripe, realize power
It is quick transmitting and share, to further increase the ability of the bearing load of tower head.
The present invention is further provided that in the middle part of inverted trapezoidal insulation tower window to include being adapted with tower body shape, size
Vertical supporting member, vertical supporting member are set between the bottom edge and top margin of inverted trapezoidal insulation tower window.On the one hand, structure is supported vertically
Part effectively strengthens the integral strength and globality of inverted trapezoidal insulation tower window, additionally it is possible to which help mitigates the load that top margin is born；
On the other hand, capable of making connection between tower head and tower body, more closely the load that can be born tower head is transferred to tower
Body mitigates tower head load.
The present invention is further provided that keep stable structure and structure slim and graceful, earth wire support, side cross-arm are triangular shape
Component.
The present invention is further provided that inverted trapezoidal component is symmetrical structure, and side cross-arm, earth wire support structure are identical and right
Claim on setting and inverted trapezoidal component.
The technology of the present invention effect is as follows: the present invention by setting on the basis of inverted trapezoidal insulation tower window respectively at its both ends
Set the tower head structure that an approximate torch-shaped is formed it into towards inclined earth wire support and side cross-arm horizontally toward, and
Inside setting insulator string of inverted trapezoidal insulation tower window is big with several connecting rods for reinforcement structure for hanging middle phase line
Cat-head transmission tower in the prior art is reduced greatly, the tower window that phase line passes through design during wineglass tower supplies, to reduce width of corridor, simplification
The structure of tower head reduces tower material index, while eliminating K node, optimizes structure stress, can adapt to the tower head greatly
Span transmission line uses.
Due to the composite material using insulation, torch-shaped tower head size is efficiently compressed, and conducting wire projection width is only 13.0
Rice, tower head height are also only 5 meters, and tower head structure is more simple and beautiful, the number of components is also reduced, therefore its tower material index phase
8% or so can be saved than wineglass tower.Meanwhile compared to the K node structural arrangement form of traditional wineglass tower and cat-head transmission tower, flare tower
Tower head structure arrangement is more reasonable, and the design of the structure of inverted trapezoidal insulation tower window can also eliminate K node and deform excessive and cause
The unstable hidden danger of tower structure.
For reinforce tower head itself structure globality, intensity, the present invention is using full symmetric symmetric design and several
Arrange special connecting rod (coincidence of side, V-shape window mouth), while simplifying tower head structure, making tower head, load is equal everywhere
It can share to other structures, and ensure that tower head structure stress is uniform, improve load endurance to improve.
Detailed description of the invention
Fig. 1 is specific embodiment of the invention overall structure diagram.
Fig. 2 is specific embodiment of the invention tower head structural schematic diagram.
Fig. 3 is specific embodiment of the invention tower head schematic shapes.
Fig. 4 is specific embodiment of the invention inverted trapezoidal tower window construction schematic diagram.
It is as shown in the figure: the 1-the first earth wire support, the 2-the second earth wire support, the 3-the first side cross-arm, the 4-the second side cross-arm,
5-inverted trapezoidal insulation tower windows, 6-tower bodies；
101-inner side edges one, 102-outer side edges one；
201-inner side edges two, 202-outer side edges two；
301-upper side edges one, 302-lower sides one；
401-upper side edges two, 402-lower sides two；
500-middle phase line hanging point/insulators, 501-left sides, 502-bottom edges, 503-right edges, 504-top margins/the first water
Flat connecting rod, the 505-sides Zuo Chonghe, 506-right coincidence sides.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of torch-shaped single loop transmission tower cross-domain greatly, including tower body 6, tower leg 7, and with
The height of the inverted trapezoidal tower window 5 that tower body 6 connects, tower body 6 and tower leg is no less than 25m.Inverted trapezoidal insulation tower window 5 is symmetric figure knot
Structure, the first earth wire support 1, the second earth wire support 2 are respectively symmetrically fixed on the both ends (figure of the top margin 504 of inverted trapezoidal insulation tower window 5
Shown in left end, right end), first in cross-arm 3, second cross-arm 4 be respectively symmetrically fixed on the two sides of inverted trapezoidal insulation tower window 5
The top of (as shown in the figure is left side 501, right edge 503).Insulator string is equipped in the middle part of the top margin 504 of inverted trapezoidal insulation tower window 5,
For hanging middle phase conductor, pass through middle phase line among tower body 6.First earth wire support 1, the second earth wire support 2 are structure phase
The component of same triangular shape；First in cross-arm 3, second cross-arm 4 be the identical triangular shape of structure component, and the two is horizontal
It is arranged, I type insulator string is equipped at the outer end endpoint of horizontal lower side bottom.
As shown in figure 3, the inner side edge 1 of the first earth wire support 1, outer side edges 1, the upper side edge of the first side cross-arm 3
One 301, lower side 1, the left side 501 of inverted trapezoidal insulation tower window 5, bottom edge 502, right edge 503, the second side cross-arm 4
Lower side 2 402, upper side edge 2 401, the outer side edges 2 202 of the second earth wire support 2, inner side edge 2 201, inverted trapezoidal insulation tower window
The top margin 504 of 5 middle section has been bonded a flare tip, in conjunction with 6 vertical structure of tower body, together forms torch
Shape.The bottom edge of first earth wire support 1 is overlapped with the top margin 504 of inverted trapezoidal insulation tower window 5, and overlapping position is left coincidence side 505, phase
It answers, the second earth wire support 2 is overlapped side 506 with the overlapping position of inverted trapezoidal insulation tower window 5 to be right.Left coincidence is in 505, right coincidence
506 be a part of top margin 504.
Folder between first earth wire support 1, the inner side edge of the second earth wire support 2 and the top margin 504 of inverted trapezoidal insulation tower window 5
Angle is less than the angle between its outer side edges and the top margin 504 of inverted trapezoidal insulation tower window 5.
In conjunction with shown in Fig. 2, Fig. 4, inverted trapezoidal insulation tower window 5 is the inverted trapezoidal truss mould built using several rod pieces
Block, can be divided into four rectangular truss and English truss: four rectangular truss are at the distribution of falling isosceles triangle --- and two are located at center
Up and down superposition, two be located at two sides horizontal distribution；Four English trusses are divided into two layers and are separately positioned on above-mentioned finished product word
The two sides of the rectangular truss of shape.English truss is equilateral triangle, equilateral isometric with the length and width of rectangular truss, and then composition pair
Claim equilateral inverted trapezoidal truss module.In centrally located rectangular truss, above rectangular truss front and rear sides use V
Shape window structure, so as to passing through for power transmission cable, remaining rectangular truss uses intersection construction.Two English trusses of top use
Two English trusses of midfoot support rod structure, lower section can not be related to support construction.
In above structure inverted trapezoidal truss module, positioned at the rectangular truss in left side support rod and lower section it is centrally located
The support rod of rectangular truss connects composition jointly and the inner side edge of the first earth wire support 1, the second earth wire support 2 connects straight the
One diagonal control arm；Support rod positioned at the centrally located rectangular truss of the support rod and lower section of the rectangular truss on right side connects jointly
The inner side edge of composition and the second earth wire support 2 connects straight second diagonal control arm.The lower end company of first diagonal control arm, the second diagonal control arm
Be connected at the opposite side endpoint on 5 bottom edge 502 of inverted trapezoidal insulation tower window, make the first earth wire support 1, the second earth wire support 2 and tower body 6 it
Between Path of Force Transfer be shortest straight line.
Connection is to make the first earth wire support 1, the second earth wire support 2 to the top margin 504 of three rectangular truss of top jointly
Connected first level connecting rod --- the i.e. top margin 504 of inverted trapezoidal insulation tower window 5, bottom edge 502 and the first side cross-arm 3, second
The second waling stripe is collectively formed in the lower side connection of side cross-arm 4.502 width of bottom edge of the rectangular truss of lower section be connected thereto
6 width of tower body be adapted.
In above-mentioned inverted trapezoidal truss module, as shown in connection with fig. 2, it is positioned at by the center of circle, secured electrical range of insulator string
The piece truss rod piece in insulation range that radius is formed uses insulating materials (GFRP material).The two sides of inverted trapezoidal truss module
Side, the English truss being located above vertical side can use Steel material；The other structures of tower head --- the first earth wire support
1, the second earth wire support 2, first cross-arm 4 etc. in cross-arm 3, second is all made of Steel material.
By taking 220kV voltage torch-shaped single loop transmission tower as an example, three kinds of Great span tower solution technique economic indicators pair
Than as shown in the table: table 1
Note: steel tube tower presses 0.9 ten thousand yuan/ton, and composite material is based on 2.5 ten thousand yuan/ton.
As seen from table, due to the composite material using insulation, flare tower tower head size is significantly compressed, conducting wire projection
Width is only 13.0 meters, and tower head height is also only 5 meters, and tower head structure is more simple and beautiful, the number of components is also reduced, therefore
Its tower material index can save 8% or so compared to wineglass tower.Meanwhile shape is arranged compared to the K node structure of traditional wineglass tower and cat-head transmission tower
The tower head structure arrangement of formula, flare tower is more reasonable, eliminate K node deform it is excessive caused by unstable hidden of tower structure
Suffer from, is also more suitable for Great span use.
Based on above-mentioned, the present invention provides one kind by inverted trapezoidal insulation tower window 5 and two earth wire supports, two side cross-arm groups
Torch-shaped tower head made of conjunction, by the way that tower head is designed as torch-shaped, not only reduce tower window ara, tower head volume with again
Amount, can long-span electric transmission line use, additionally it is possible to reduce tower material index use, reduction material cost.In addition, this hair
Bright simple structure and reasonable design, intensity are high, and which further reduces difficulty of construction, the construction period is shortened in help.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.Institute
Have within the scope of the present invention or is included in the invention in the change being equal in the scope of the present invention.
Claims (10)
1. torch-shaped single loop transmission tower, including tower head, tower body and tower leg, it is characterised in that: tower head includes being connected with tower body
Inverted trapezoidal insulation tower window, the both ends of the top margin of inverted trapezoidal insulation tower window are connected separately with earth wire support, the top of two sides
It is connected separately with side cross-arm；It is equipped with insulator string in the middle part of the top margin of inverted trapezoidal insulation tower window, is located at using insulator string as the center of circle, peace
Full electrical boundaries are that the part inverted trapezoidal insulation tower window in the insulation range that radius is formed uses insulating materials；Inverted trapezoidal insulation tower
The two sides of window use Steel material.
2. torch-shaped single loop transmission tower as described in claim 1, it is characterised in that: side cross-arm is horizontally disposed, water
Flat lower side bottom is equipped with I type insulator string.
3. torch-shaped single loop transmission tower as claimed in claim 1 or 2, it is characterised in that: inverted trapezoidal insulation tower window is served as reasons
The inverted trapezoidal truss module that several pole stocks are built；Several rectangular truss of inverted trapezoidal truss module and English truss build and
At equipped with V-shape window mouth at the rectangular truss or English truss for hanging insulator string.
4. torch-shaped single loop transmission tower as claimed in claim 3, it is characterised in that: the side of rectangular truss is using intersection
Structure, English truss use three-legged structure.
5. torch-shaped single loop transmission tower as claimed in claim 4, it is characterised in that: inverted trapezoidal derrick tower window two sides
Top is overlapped with the side of side cross-arm, its top margin two sides is overlapped with earth wire support respectively.
6. the torch-shaped single loop transmission tower as described in claim 1,2,4,5 is any, it is characterised in that: the shaft tower is big
Crossover tower.
7. torch-shaped single loop transmission tower as described in claim 1, it is characterised in that: wrap at the middle part of inverted trapezoidal insulation tower window
Include the vertical supporting member adaptable with tower body shape, size, vertical supporting member be set to the bottom edge of inverted trapezoidal insulation tower window with
Between top margin.
8. torch-shaped single loop transmission tower as described in claim 1, it is characterised in that: in inverted trapezoidal derrick tower window be equipped with
The waling stripe of the lower side connection of two sides cross-arm.
9. the torch-shaped single loop transmission tower as described in claim 1,2,4,5 is any, it is characterised in that: earth wire support, side
Cross-arm is the component of triangular shape.
10. the torch-shaped single loop transmission tower as described in claim 1,2,4,5 is any, it is characterised in that: inverted trapezoidal truss
Tower window is symmetrical structure, and side cross-arm, earth wire support structure are identical and are symmetrically disposed on inverted trapezoidal derrick tower window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811405019.9A CN109505451A (en) | 2018-11-23 | 2018-11-23 | Torch-shaped single loop transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811405019.9A CN109505451A (en) | 2018-11-23 | 2018-11-23 | Torch-shaped single loop transmission tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109505451A true CN109505451A (en) | 2019-03-22 |
Family
ID=65750030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811405019.9A Pending CN109505451A (en) | 2018-11-23 | 2018-11-23 | Torch-shaped single loop transmission tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109505451A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913030A (en) * | 2011-08-05 | 2013-02-06 | 上海艾能电力工程有限公司 | Angle iron tower for raising elevated height of power transmission line |
| CN202937045U (en) * | 2012-08-09 | 2013-05-15 | 河南省电力勘测设计院 | Tangent tower for +/-800kV direct-current ultrahigh-voltage transmission line height-limiting area |
| CN103122723A (en) * | 2013-01-31 | 2013-05-29 | 中国电力工程顾问集团西北电力设计院 | Novel wine glass composite material tower |
| CN203008473U (en) * | 2012-12-21 | 2013-06-19 | 中国电力工程顾问集团西南电力设计院 | Linear tower for +/-400kV direct current transmission line |
| CN203412353U (en) * | 2013-08-06 | 2014-01-29 | 安徽华电工程咨询设计有限公司 | Power transmission line composite strain rod tower without insulator string |
| CN205777814U (en) * | 2016-07-19 | 2016-12-07 | 国网冀北电力有限公司廊坊供电公司 | Cross-arm steel tower |
| CN209817552U (en) * | 2018-11-23 | 2019-12-20 | 绍兴大明电力设计院有限公司 | Torch type single-loop transmission tower |
-
2018
- 2018-11-23 CN CN201811405019.9A patent/CN109505451A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913030A (en) * | 2011-08-05 | 2013-02-06 | 上海艾能电力工程有限公司 | Angle iron tower for raising elevated height of power transmission line |
| CN202937045U (en) * | 2012-08-09 | 2013-05-15 | 河南省电力勘测设计院 | Tangent tower for +/-800kV direct-current ultrahigh-voltage transmission line height-limiting area |
| CN203008473U (en) * | 2012-12-21 | 2013-06-19 | 中国电力工程顾问集团西南电力设计院 | Linear tower for +/-400kV direct current transmission line |
| CN103122723A (en) * | 2013-01-31 | 2013-05-29 | 中国电力工程顾问集团西北电力设计院 | Novel wine glass composite material tower |
| CN203412353U (en) * | 2013-08-06 | 2014-01-29 | 安徽华电工程咨询设计有限公司 | Power transmission line composite strain rod tower without insulator string |
| CN205777814U (en) * | 2016-07-19 | 2016-12-07 | 国网冀北电力有限公司廊坊供电公司 | Cross-arm steel tower |
| CN209817552U (en) * | 2018-11-23 | 2019-12-20 | 绍兴大明电力设计院有限公司 | Torch type single-loop transmission tower |
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