CN203145552U - Composite tower used for power grid power lines and composite cross arm structure thereof - Google Patents
Composite tower used for power grid power lines and composite cross arm structure thereof Download PDFInfo
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- CN203145552U CN203145552U CN 201320117923 CN201320117923U CN203145552U CN 203145552 U CN203145552 U CN 203145552U CN 201320117923 CN201320117923 CN 201320117923 CN 201320117923 U CN201320117923 U CN 201320117923U CN 203145552 U CN203145552 U CN 203145552U
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- tower
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- cross arm
- cross
- power transmission
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- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 239000012212 insulator Substances 0.000 claims abstract description 80
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 150000001875 compounds Chemical class 0.000 claims description 29
- 239000007787 solid Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 229920000715 Mucilage Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 229920000260 silastic Polymers 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009422 external insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- KHDSWONFYIAAPE-UHFFFAOYSA-N silicon sulfide Chemical compound S=[Si]=S KHDSWONFYIAAPE-UHFFFAOYSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to the field of power transmission towers, and provides a composite cross arm structure of a composite tower used for power grid power lines and the composite tower comprising the structure. The composite cross arm structure comprises a set of cross arm insulators and two sets of cable-stayed insulators, the set of cross arm insulators is arranged in a linear shape, one end of each cross arm insulator is connected with a tower body, and the other end of each cross arm insulator is overhung and suitable for being connected with the power lines. The two sets of the cable-stayed insulators are arranged in a V-shaped type relative to one another, the first end, positioned on the V-shaped peak, of each cable-stayed insulator is connected with the other end of one cross arm insulator, and the second end, positioned in the V-shaped opening, of each cable-stayed insulator is connected to the tower body above one cross arm insulator. Due to the fact that only one set of cross arm insulators is adopted, the structure is simple, and construction and installation are convenient. Due to the fact that the two sets of cable-stayed insulators are adopted, and stability performance of a triangle is adopted, cross arm structural strength is higher to bear stress generated by wire breaking or swing left and right when a wire is pulled.
Description
Technical field
The utility model generally relates to power transmission tower, relates more specifically to a kind of grid power transmission line complex pole tower.
Background technology
Power transmission tower is to support the lead of high voltage overhead power transmission sequence and the structure of lightning conducter.Existing high voltage power transmission tower all adopts iron and steel material quality, is made up of tower head, body of the tower and tower leg three parts.As Chinese invention patent application CN201010297983.1, it discloses a kind of high typical structure pattern that press dry font.Stretch out the metal material cross-arm of electric conductivity for hanging transmission pressure, to bear the weight of lead from the body of the tower of electrical grounding.Because transmission pressure need keep certain electrical safety distance with earth point, discharge over the ground avoiding, flashover fault takes place, this just requires metal cross arm will possess enough length, free end at cross-arm adds long insulator string simultaneously, with charged at interval transmission pressure and the metal cross arm of ground connection, guarantee insulation distance.
Because existing high voltage power transmission tower all adopts all steel structure processed, have that quality is heavy, easy-to-rust or defectives such as cracking, poor performance at low temperatures, also exist construction to transport and problems such as operation maintenance difficulty.In addition, consider that wind load can make suspension insulator be the factor that certain windage yaw angle causes power line and power transmission tower body of the tower the air gap to reduce in the normal course of operation, not breakdown for guaranteeing the air gap between power line (electrical body) and the body of the tower part (ground connector), must when the design cross-arm, consider the influence of angle of wind deflection, the corresponding cross-arm length that increases, the width that this must increase whole passway for transmitting electricity corridor has increased the floor space of whole piece transmission line of electricity.
Consider the above-mentioned defective of steel shaft tower, applicant of the present utility model once proposed a kind of grid power transmission line compound inslation tower, saw Chinese invention patent application CN201010115171.0.In the disclosed compound inslation tower of this patent application, owing to used the cross-arm of composite material manufacturing as the support member of power line, thereby can reduce the length of insulator string or avoid using suspension insulator, and then reduced the length of cross-arm, reduce cost and the weight of shaft tower, and reduce the floor space of power transmission tower.The cross-arm of this complex pole tower only is not made of an insulating bar, and this insulating bar also only is connected to the mobile jib of complex pole tower by a suspension rod, and overall structure is thiner, can't satisfy the support to high voltage transmission line.
The utility model content
Therefore, the purpose of this utility model grid power transmission line that provides a kind of simple in structure, easy construction and have a higher stability of strutting system is with the compound cross-arm structure of complex pole tower and use the complex pole tower of this compound cross-arm structure.
For this reason, according to an aspect of the present utility model, the compound cross-arm structure of a kind of grid power transmission line with complex pole tower is provided, wherein, described compound cross-arm structure comprises: one group of cross arm insulator, it is yi word pattern arranges, the body of the tower other end that an end of this group cross arm insulator connects described complex pole tower dangles and is suitable for connecting described grid power transmission line; Two groups of oblique sliding insulators, these two groups of oblique sliding insulators relative to each other are arranged to V-shape, and first end that is positioned at V-shape summit place of every group of oblique sliding insulator connects the described other end of described cross arm insulator and second end that is positioned at the V-shape opening part is connected to described body of the tower above described cross arm insulator.
Of the present utility model aspect this, because compound cross-arm structure only adopts one group of cross arm insulator, simple in structure, construction install convenience; Simultaneously, owing to adopted two groups of oblique sliding insulators, thereby can utilize leg-of-mutton stability to make the intensity of compound cross-arm structure higher, what swing and produced when bearing conductor cord disconnection or pulling is stressed.
Preferably, two groups of oblique sliding insulators are 15 °～75 ° at the angle that place, V-shape summit forms.Angle is more big, and the mechanical strength that product can bear is more big; But after the product angle is excessive, on the basis of the insulation distance that guarantees cross-arm, the length of oblique sliding insulator and the width of body of the tower are increased simultaneously, cause cost to increase greatly, so generally angle is controlled at 15 °～75 °.
Preferably, above-mentioned oblique sliding insulator is line insulator.
Preferably, above-mentioned oblique sliding insulator is solid pull bar.
Preferably, above-mentioned one group of cross arm insulator is made of a hollow insulator.The hollow insulator cost is low, and is in light weight.
According to another aspect of the present utility model, a kind of grid power transmission line complex pole tower is provided, wherein, complex pole tower comprises that body of the tower and at least one are installed in the aforesaid compound cross-arm structure on the body of the tower.
Preferably, the body of the tower of complex pole tower is made of composite element.
Preferably, complex pole tower also comprises tower head, and tower head is made of composite element.
By the following described embodiment of reference, these and other aspects of the present utility model will clearly be set forth.
Description of drawings
Structure of the present utility model and mode of operation and further purpose and advantage will be understood better by the description below in conjunction with accompanying drawing, wherein, and identical reference marker sign components identical:
Fig. 1 is the front schematic view of using complex pole tower according to the grid power transmission line of the utility model preferred embodiment;
Fig. 2 is the partial enlarged view that the grid power transmission line is used the relevant compound cross-arm structure division of complex pole tower among Fig. 1;
Fig. 3 is the phantom drawing of structure among Fig. 2.
The specific embodiment
As requested, will disclose the specific embodiment of the present utility model here.Yet, should be understood that disclosed embodiment only is exemplary of the present utility model here, it can be presented as various forms.Therefore, here the detail of Pi Luing is not considered to restrictive, and only be differently to use representational basis of the present utility model as the basis of claim and as being used for instruction those skilled in the art in any appropriate mode of reality, comprise employing disclosed various features and in conjunction with the feature that may clearly not disclose here here.
At first, schematically illustrated by Fig. 1 with complex pole tower 10 according to the grid power transmission line of the utility model preferred embodiment, this complex pole tower 10 is single loop line tower for last font tower.As shown in Figure 1, complex pole tower 10 comprises tower head 11, body of the tower 12, column foot 13, and is connected and fixed on three compound cross-arm structures 14 on the body of the tower 12.In this embodiment, tower head 11 and body of the tower 12 all adopt composite element to constitute, but in other embodiment, tower head 11 can be steel structure as column foot 13 all with body of the tower 12.Wherein, here the composite element of mentioning can adopt the previous denomination of invention of submitting to of the utility model applicant for " grid power transmission line compound inslation tower ", number of patent application are that pultrusion or the winding process of mobile jib mentioned in the application for a patent for invention file of CN201010115171.0 prepares, and no longer elaborates at this.
Again as shown in Figure 1, on this, have three compound cross-arm structures 14 in the font tower 10, wherein be positioned at uppermost compound cross-arm structure and be referred to as cross-arm, be positioned at two following compound cross-arm structures and be referred to as down cross-arm.In this embodiment, as the compound cross-arm structure 14 of preferred embodiment as shown in Figures 2 and 3, comprise one group of cross arm insulator 141, it is yi word pattern along the horizontal plane direction and arranges, one end 1411 of this group cross arm insulator 141 can be connected on the body of the tower 12 of complex pole tower 10 by means of plate-type metal part (not shown), and the other end is that free end 1412 dangles and is suitable for connecting grid power transmission line (not shown); Two groups of oblique sliding insulators 142, these two groups oblique sliding insulators 142 relative to each other are arranged to V-shape, first end 1421 that is positioned at V-shape summit place of every group of oblique sliding insulator 142 connects the above-mentioned other end 1412 of cross arm insulators 141, and second end 1422 that is positioned at the V-shape opening part is connected to body of the tower 12 above cross arm insulator 141.The direction of the V-shape of mentioning above should be appreciated that is definite like this, and its opening is towards body of the tower, and its summit is towards the grid power transmission line that hangs.
In the present embodiment, because compound cross-arm structure only adopts one group of cross arm insulator 141, simple in structure, construction install convenience in the horizontal plane direction; Simultaneously, owing to adopted two groups of oblique sliding insulators 142, thereby can utilize leg-of-mutton stability to make the intensity of compound cross-arm structure higher, what swing and produced when bearing conductor cord disconnection or pulling is stressed.As shown in Figure 3, two groups of oblique sliding insulators can be set to 15 °～75 ° at the angle that place, V-shape summit forms.Angle is more big, and the mechanical strength that product can bear is more big; But after the product angle is excessive, on the basis of the insulation distance that guarantees cross-arm, the length of oblique sliding insulator and the width of body of the tower are increased simultaneously, cause cost to increase greatly, so generally angle is controlled at 15 °～75 °.In the present embodiment, angle α is 30 °.By this set, both guaranteed the force request of high pressure complex pole tower actual condition, guaranteed the width optimum of cross arm insulator length and body of the tower again, and the most attractive in appearance.In addition, although cross arm insulator horizontal positioned in the present embodiment should be understood that, cross arm insulator also relatively horizontal direction tilt to place.
In the present embodiment, tiltedly sliding insulator 142 is line insulator, constitutes the form of composite material pull bar.Tiltedly sliding insulator 142 adopts the pultrusion solid hopkinson bar, and composite material is similarly epoxy, vinyl or polyurethane material, and there has been the silastic material of external insulation protective effect its outside.Tiltedly sliding insulator 142 is used for cross arm insulator 141 is hung on body of the tower 12, and its two ends can be connected with body of the tower 12 with cross arm insulator 141 respectively by end metalwork 144, as Fig. 2, shown in Figure 3.Wherein, tiltedly the end metalwork 144 of sliding insulator 142 adopts traditional compression joint technique moulding.
In the present embodiment; one group of cross arm insulator 141 of compound cross-arm structure 14 is actual to be the hollow insulator of a pressure pipe form that is made of composite material; such as being the expoxy glass steel pipe that to bear mechanical strength; boring also is filled with the foam of polyurethane material, and the outside has had the silastic material of external insulation protective effect as sheath and full skirt.Should be understood that above-mentioned expoxy glass steel pipe also can replace with vinyl material or polyurethane material wind pipe; Also can be filled with insulating gas, insulating oil or solid dielectric insulation during expoxy glass steel pipe boring, certainly, the expoxy glass steel pipe also can be made inner solid; Above-mentioned silastic material can be high-temperature silicon disulfide rubber, room temperature vulcanized silicone rubber or fluid silicone rubber.The preparation of cross arm insulator is not emphasis of the present utility model, and details can not be the application for a patent for invention file of CN201010115171.0 with reference to application number to the greatest extent.
For the pressure pipe of bearing pressure and bending force is cross arm insulator 141, what its end gold utensil or metal flange 145 adopted is mucilage binding technology or interference fit moulding, mucilage binding is than (flange height: be 0.8～1.5 caliber), can improve anti-pressure ability and resistance to tension better like this.Particularly, the mucilage binding structure of cross arm insulator 141 is at the inner processing of metal connecting piece multiple tracks hoop metallic channel, the corresponding socket of corresponding wind pipe external surface position processes the mucilage binding grooved of same size, form fit between the two, between groove and groove, pass through the root fabrication hole, inject a kind of glue between the grooved that both cooperate and fill up, solidify for a long time by room temperature, be 8～16 hours general hardening time, perhaps accelerate to solidify by the method for external heat, solidification temperature is 100 ℃～150 ℃, and be 1～4 hour hardening time.
Use above-mentioned compound cross-arm to substitute the metal cross arm part of conventional high-tension (for example 750kV) iron tower, can fully phase out or shorten for the suspension insulator on traditional iron tower, shorten thereby eliminated by the caused insulation distance of suspension insulator windage yaw, the risk that the air gap punctures, can shorten cross-arm length greatly, reduce the circuit width of corridor.
Should be understood that, although in above-mentioned preferred embodiment, one group of cross arm insulator only is made of a hollow insulator, be to be understood that, it also can connect into yi word pattern by two hollow insulators by intermetallic metal flange (not shown) as required, by such setting, can lengthen the length of compound cross-arm structure, thereby can satisfy the more requirement of high-tension transmission line.In like manner, though in the above-described embodiment, every group of two groups of oblique sliding insulators only is made of a solid pull bar, should be appreciated that every group of oblique sliding insulator also can be formed by connecting by means of the intermetallic metal flange by two solid pull bars.
In addition, although the metal flange of Shi Yonging in the above-described embodiment should be appreciated that flange also can be nonmetal, require as long as can satisfy to support.It is to be further understood that above-mentioned line insulator can be flexible.
Technology contents of the present utility model and technical characterstic have disclosed as above; yet be appreciated that; under creative ideas of the present utility model; those skilled in the art can make various changes and modifications to said structure and material; comprise here disclosing separately or the combination of claimed technical characterictic, comprise other combination of these features significantly.These distortion and/or combination all fall in the related technical field of the utility model, and fall into the protection domain of the utility model claim.It should be noted that by convention, use discrete component to be intended to comprise one or more such elements in the claim.In addition, any reference marker in claims should be configured to limit scope of the present utility model.
Claims (8)
1. a grid power transmission line is characterized in that described compound cross-arm structure comprises with the compound cross-arm structure of complex pole tower:
One group of cross arm insulator, it is yi word pattern arranges, the body of the tower other end that an end of this group cross arm insulator connects described complex pole tower dangles and is suitable for connecting described grid power transmission line;
Two groups of oblique sliding insulators, these two groups of oblique sliding insulators relative to each other are arranged to V-shape, and first end that is positioned at V-shape summit place of every group of oblique sliding insulator connects the described other end of described cross arm insulator and second end that is positioned at the V-shape opening part is connected to described body of the tower above described cross arm insulator.
2. grid power transmission line as claimed in claim 1 is characterized in that with the compound cross-arm structure of complex pole tower, and described two groups of oblique sliding insulators are 15 °～75 ° at the angle that place, V-shape summit forms.
3. grid power transmission line as claimed in claim 1 or 2 is characterized in that with the compound cross-arm structure of complex pole tower described oblique sliding insulator is line insulator.
4. grid power transmission line as claimed in claim 1 or 2 is characterized in that with the compound cross-arm structure of complex pole tower described oblique sliding insulator is solid pull bar.
5. grid power transmission line as claimed in claim 1 or 2 is characterized in that with the compound cross-arm structure of complex pole tower described one group of cross arm insulator is made of a hollow insulator.
6. a grid power transmission line complex pole tower is characterized in that, described complex pole tower comprise body of the tower and at least one be installed on the described body of the tower as each described compound cross-arm structure of claim 1 to 5.
7. grid power transmission line complex pole tower as claimed in claim 6 is characterized in that the body of the tower of described complex pole tower is made of composite element.
8. as claim 6 or 7 described grid power transmission line complex pole towers, it is characterized in that described complex pole tower also comprises tower head, described tower head is made of composite element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320117923 CN203145552U (en) | 2013-03-14 | 2013-03-14 | Composite tower used for power grid power lines and composite cross arm structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320117923 CN203145552U (en) | 2013-03-14 | 2013-03-14 | Composite tower used for power grid power lines and composite cross arm structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203145552U true CN203145552U (en) | 2013-08-21 |
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ID=48973091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320117923 Withdrawn - After Issue CN203145552U (en) | 2013-03-14 | 2013-03-14 | Composite tower used for power grid power lines and composite cross arm structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203145552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174321A (en) * | 2013-03-14 | 2013-06-26 | 江苏神马电力股份有限公司 | Compound tower for power grid power transmission line and compound cross arm structure thereof |
| WO2020125313A1 (en) * | 2018-12-21 | 2020-06-25 | 江苏神马电力股份有限公司 | Power transmission tower |
-
2013
- 2013-03-14 CN CN 201320117923 patent/CN203145552U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174321A (en) * | 2013-03-14 | 2013-06-26 | 江苏神马电力股份有限公司 | Compound tower for power grid power transmission line and compound cross arm structure thereof |
| CN103174321B (en) * | 2013-03-14 | 2015-11-25 | 江苏神马电力股份有限公司 | Power grid transmission line complex pole tower and compound cross-arm structure thereof |
| WO2020125313A1 (en) * | 2018-12-21 | 2020-06-25 | 江苏神马电力股份有限公司 | Power transmission tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20151125 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |