CN103726703A - Alternating current extra-high voltage same-tower double-circuit tangent tower - Google Patents
Alternating current extra-high voltage same-tower double-circuit tangent tower Download PDFInfo
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- CN103726703A CN103726703A CN201310612789.1A CN201310612789A CN103726703A CN 103726703 A CN103726703 A CN 103726703A CN 201310612789 A CN201310612789 A CN 201310612789A CN 103726703 A CN103726703 A CN 103726703A
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- 239000000725 suspension Substances 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 description 9
- 230000005611 electricity Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The invention discloses an alternating current extra-high voltage same-tower double-circuit tangent tower. The alternating current extra-high voltage same-tower double-circuit tangent tower comprises a tower body, a first wire cross arm, a second wire cross arm and a third wire cross arm, wherein the first wire cross arm is fixed to the top of the tower body and the two ends of the upper surface of the first wire cross arm are respectively provided with a ground wire support; the second wire cross arm is fixed to the tower body and a distance is set between the first wire cross arm and the second wire cross arm; the third wire cross arm is fixed to the tower body and a distance is set between the second wire cross arm and the third wire cross arm; the first wire cross arm, the second wire cross arm and the third wire cross arm are respectively provided with a hanger used for fixing a Y-type overhanging string. The alternating current extra-high voltage same-tower double-circuit tangent tower has a small corridor width.
Description
Technical field
The present invention relates to high voltage iron tower technical field, more particularly, relate to a kind of alternating-current extra-high voltage one-tower double-circuit linear tower.
Background technology
Ultra-high voltage AC transmission technology refers generally to the technology of transmission of electricity that electric pressure is 500kV and above.Adopt UHV transmission technology can reduce the tower material index, base values, width of corridor etc. of unit transmission capacity, the electric energy loss while reducing remote conveying.For National energy distribution and economic development layout, it is imperative that employing is suitable for remote extra-high voltage technology of carrying.
Along with the continuous propelling of China's power construction, circuit corridor is more and more in short supply.Particularly, extra high voltage line distance between centers of tracks is larger, and circuit corridor is wider than general circuit, and the increase in circuit corridor directly causes increasing of housing demolition amount, thereby the contradiction of extra high voltage line corridor anxiety is particularly outstanding.
The existing steel tower for delivery of AC extra high voltage is I type tangent tower, is the tangent tower that adopts I type suspension string hanging wire mode.But, adopt I type tangent tower to carry AC extra high voltage, in order to guarantee enough electric clearances, its circuit corridor is wider.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of alternating-current extra-high voltage one-tower double-circuit linear tower, the wide problem in circuit corridor while carrying AC extra high voltage to solve.
For achieving the above object, the invention provides following technical scheme:
A kind of alternating-current extra-high voltage one-tower double-circuit linear tower, comprising:
Tower body;
The the first wire cross-arm that is fixed on described tower body top, the two ends of described the first wire cross-arm upper surface are provided with an earth wire support;
Be fixed on described tower body, there is with described the first wire cross-arm the second wire cross-arm of setting spacing;
Be fixed on described tower body, there is with described the second wire cross-arm the privates cross-arm of setting spacing;
Wherein, described the first wire cross-arm, the second wire cross-arm and privates cross-arm are provided with the hanger for fixing Y type suspension string.
Preferably, in above-mentioned alternating-current extra-high voltage one-tower double-circuit linear tower, the distance range of the axis of the described tower body vertical direction of one end distance of described privates cross-arm is 20.22m-20.59m, comprises endpoint value.
Preferably, in above-mentioned alternating-current extra-high voltage one-tower double-circuit linear tower, the distance range of the axis of the described tower body vertical direction of one end distance of described the second wire cross-arm is 18.89m-19.19m, comprises endpoint value.
Preferably, in above-mentioned alternating-current extra-high voltage one-tower double-circuit linear tower, the distance range of the axis of the described tower body vertical direction of one end distance of described the first wire cross-arm is 18.19m-18.59m, comprises endpoint value.
Preferably, in above-mentioned alternating-current extra-high voltage one-tower double-circuit linear tower, described privates cross-arm is also provided with the hanger for fixing V-type suspension string.
Preferably, in above-mentioned alternating-current extra-high voltage one-tower double-circuit linear tower, exhaling of described alternating-current extra-high voltage one-tower double-circuit linear tower claims that high scope is 54m-69m, comprises endpoint value.
Preferably, in above-mentioned alternating-current extra-high voltage one-tower double-circuit linear tower, described earth wire support one end and described the first wire cross-arm are fixed, and the other end deviates from described tower body to tiltedly upper extension;
Wherein, at described the first wire cross-arm, the second wire cross-arm and privates cross-arm, hang after Y type suspension string, the contact point of Y type suspension string and wire is positioned at accordingly lower carriage in the projection of described level in the projection of horizontal plane.
From technique scheme, can find out, the first wire cross-arm of alternating-current extra-high voltage one-tower double-circuit linear tower provided by the present invention, described the second wire cross-arm and privates cross-arm are provided with the hanger for fixing Y type suspension string, it is the cross-arm that described the first wire cross-arm, described the second wire cross-arm and privates cross-arm all can be used for the hanger of fixing Y type suspension string, when carrying out AC extra high voltage transmission of electricity, can effectively reduce the width of corridor of transmission line of electricity.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of alternating-current extra-high voltage one-tower double-circuit linear tower common in prior art;
The structural representation of a kind of alternating-current extra-high voltage one-tower double-circuit linear tower that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is the partial enlarged drawing in Fig. 2.
The specific embodiment
The tangent tower of the I type suspension string hanging wire mode that just as described in the background section, prior art adopts when carrying out AC extra high voltage conveying.
With reference to figure 1, Fig. 1 is a kind of alternating current extra-high voltage co-tower double I string tangent tower common in prior art, at the two ends of upper conductor cross-arm 1, middle wire cross-arm 2 and lower wire cross-arm 3, is provided with I type suspension string.
But, hunting range is larger with the wind due to I type suspension string for the tangent tower of employing I type suspension string hanging wire mode, in order to guarantee to be suspended on the wire of I type suspension string lower end and to support between each cross-arm tower body, there is enough electric clearances with being close between cross-arm, need larger wire spaced apart is set, this can cause circuit width of corridor wider.
Inventor studies discovery, can adopt the high voltage iron tower of Y type suspension string to carry out the conveying of AC extra high voltage, can reduce wire spaced apart, and then effectively reduce circuit width of corridor.
Based on above-mentioned research, the invention provides a kind of alternating-current extra-high voltage one-tower double-circuit linear tower, comprising:
The the first wire cross-arm that is fixed on described tower body top, the two ends of described the first wire cross-arm upper surface are provided with an earth wire support;
Be fixed on described tower body, there is with described the first wire cross-arm the second wire cross-arm of setting spacing;
Be fixed on described tower body, there is with described the second wire cross-arm the privates cross-arm of setting spacing;
Wherein, described the first wire cross-arm, the second wire cross-arm and privates cross-arm are provided with the hanger for fixing Y type suspension string.
The first wire cross-arm of alternating-current extra-high voltage one-tower double-circuit linear tower provided by the present invention, described the second wire cross-arm and privates cross-arm are provided with the hanger for fixing Y type suspension string, it is the cross-arm that described the first wire cross-arm, described the second wire cross-arm and privates cross-arm all can be used for the hanger of fixing Y type suspension string, when carrying out AC extra high voltage transmission of electricity, can effectively reduce the width of corridor of transmission line of electricity.
It is more than the application's core concept, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
A lot of details have been set forth in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that, and therefore the present invention is not subject to the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, when the embodiment of the present invention is described in detail in detail; for ease of explanation; the schematic diagram of indication device part structure can be disobeyed general ratio and be done local amplification, and described schematic diagram is example, and it should not limit the scope of protection of the invention at this.In addition in actual fabrication, should comprise, the three-dimensional space of length, width and height.
Based on above-mentioned thought, the embodiment of the present application provides a kind of alternating-current extra-high voltage one-tower double-circuit linear tower, with reference to figure 2, comprising: tower body 11; The the first wire cross-arm 13 that is fixed on described tower body 11 tops, the two ends of described the first wire cross-arm 13 upper surfaces are provided with an earth wire support 12; Be fixed on described tower body 11, there is with described the first wire cross-arm 13 the second wire cross-arm 14 of setting spacing; Be fixed on described tower body 11, there is with described the second wire cross-arm 14 the privates cross-arm of setting spacing.
Wherein, two parts that described the first wire cross-arm 13 is positioned at described tower body 11 both sides are provided with hanger 21 and the hanger 22 for fixing Y type suspension string.Two parts that described the second wire cross-arm 14 is positioned at described tower body 11 both sides are provided with hanger 23 and the hanger 24 for fixing Y type suspension string.Two parts that described privates cross-arm 15 is positioned at described tower body 11 both sides are provided with hanger 25 and the hanger 26 for fixing Y type suspension string.
When corresponding cross-arm one side mounting Y type suspension string, above Y type suspension string, two end points connect with two hangers on corresponding cross-arm respectively, and described Y type suspension string below end points is used for hanging high-voltage line.By design cross-arm length and each cross-arm spacing, making Y type suspension string top subtended angle α scope is 90 °-110 °, and electric clearance radius of circle is 6m-7m, and electric clearance radius of circle can be designed as 6.2m or 6.7m in the specific implementation.Wherein, described electric clearance circle (in figure shown in dashed circle) radius refers to that on corresponding Y type suspension string, high-voltage line hitch point is that circle is drawn in the center of circle, with tower body and the disjoint maximum region of wire cross-arm space.
When privates cross-arm 15 hangs high-voltage line, in the present embodiment, described the 3rd cross guide line load 15 is provided with an additional hanger 27 between two hangers 27 and tower body, described annex hanger 27 with the hanger 25 that is positioned at tower body 11 the same sides jointly for fixing V-type suspension string.To reduce high-voltage line distance over the ground, thereby reduce tower body height.
Fig. 3 shows at the second wire cross-arm 14 and is positioned at the situation that hangs Y type suspension string on the hanger 23, hanger 24 of tower body 11 left part, and now Y type suspension string below terminal A electric clearance radius of a circle is 6.7m, and Y type suspension string top subtended angle α is 105 °.
In the present embodiment, distance L 3 scopes of the axis of the described tower body vertical direction of one end distance of described privates cross-arm are 20.22m-20.59m, comprise endpoint value.In the specific implementation, can be designed as 20.20m, or 20.39m, or 20.49m, or 20.59m.
Distance L 2 scopes of the axis of the described tower body vertical direction of one end distance of described the second wire cross-arm are 18.89m-19.19m, comprise endpoint value.In the specific implementation, can be designed as 18.89m, or 18.99m, or 19.09m, or 19.19m.
Exhaling of described alternating-current extra-high voltage one-tower double-circuit linear tower claims that high H scope is 48m-72m, comprises endpoint value.In the specific implementation, can be designed as 54m, or 60m.
The hitch point of described earth wire support 12 is 4.5m-5.5m with the vertical height K1 of the hitch point of the hanger of corresponding one deck 21, comprises endpoint value.In the specific implementation, can be designed as 5m.Described earth wire support one end and described the first wire cross-arm are fixed, and the other end deviates from described tower body to tiltedly upper extension.
Wherein, at described the first wire cross-arm, the second wire cross-arm and privates cross-arm, hang after Y type suspension string; the contact point of Y type suspension string and wire is positioned at accordingly lower carriage in the projection of described level in the projection of horizontal plane; to make the shielding angle of described earth wire support as negative protection, avoid the damage of thunderbolt to each cross-arm upper conductor.Described earth wire support 12 adopts trussed construction, to make full use of material, improves stability.
Described hanger 21 is apart from the vertical height of hanger 23, and the vertical spacing K2 of the first wire cross-arm and the second wire cross-arm is 20m-22m, comprises endpoint value.In the specific implementation, can be designed as 20.8m.
Described hanger 23 is apart from the vertical height of hanger 25, and the vertical spacing K3 of the second wire cross-arm and privates cross-arm is 20m-22m, comprises endpoint value.In the specific implementation, can be designed as 20.8m or 21.3m.
The open top width E of described tower body 11 is 4m-5m, comprises endpoint value.In the specific implementation, can be designed as 4.6m.Described tower body becomes the bottleneck width P of place, slope and comprises endpoint value into 7m-8m.In the specific implementation, can be designed as 7.8m.Tower body 11 arranges structure every face, makes tower body 11 have enough bending resistances, torsional rigidity, and the distortion that meets steel tower limits requirement.
Described in the present embodiment, alternating-current extra-high voltage one-tower double-circuit linear tower is umbellate form steel tower, is meeting under the condition of electric clearance requirement, by optimizing tower head, arranges, makes tower head size, tower body opening, the gradient etc., reaches the object that reduces tower weight.Applicable to wind speed, be no more than 32m/s, ice covering thickness is no more than 10mm, and height above sea level is no more than 1000m, and horizontal span is 430m-650m, and vertical span is 550m-800m, and the corner number of degrees are, in the environment of 0 °-3 °, for AC extra high voltage, to transmit electricity.
The alternating-current extra-high voltage one-tower double-circuit linear tower that the present embodiment provides is the Y type tangent tower that adopts the outstanding string of Y type, with respect to I type, props up transmission tower, adopts two hitch points, makes high-voltage line wind loading rating stronger, can effectively reduce circuit width of corridor.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. an alternating-current extra-high voltage one-tower double-circuit linear tower, is characterized in that, comprising:
Tower body;
The the first wire cross-arm that is fixed on described tower body top, the two ends of described the first wire cross-arm upper surface are provided with an earth wire support;
Be fixed on described tower body, there is with described the first wire cross-arm the second wire cross-arm of setting spacing;
Be fixed on described tower body, there is with described the second wire cross-arm the privates cross-arm of setting spacing;
Wherein, described the first wire cross-arm, the second wire cross-arm and privates cross-arm are provided with the hanger for fixing Y type suspension string.
2. alternating-current extra-high voltage one-tower double-circuit linear tower according to claim 1, is characterized in that, the distance range of the axis of the described tower body vertical direction of one end distance of described privates cross-arm is 20.22m-20.59m, comprises endpoint value.
3. alternating-current extra-high voltage one-tower double-circuit linear tower according to claim 1, is characterized in that, the distance range of the axis of the described tower body vertical direction of one end distance of described the second wire cross-arm is 18.89m-19.19m, comprises endpoint value.
4. alternating-current extra-high voltage one-tower double-circuit linear tower according to claim 1, is characterized in that, the distance range of the axis of the described tower body vertical direction of one end distance of described the first wire cross-arm is 18.19m-18.59m, comprises endpoint value.
5. alternating-current extra-high voltage one-tower double-circuit linear tower according to claim 1, is characterized in that, described privates cross-arm is also provided with the hanger for fixing V-type suspension string.
6. alternating-current extra-high voltage one-tower double-circuit linear tower according to claim 1, is characterized in that, exhaling of described alternating-current extra-high voltage one-tower double-circuit linear tower claims that high scope is 54m-69m, comprises endpoint value.
7. alternating-current extra-high voltage one-tower double-circuit linear tower according to claim 1, is characterized in that, described earth wire support one end and described the first wire cross-arm are fixed, and the other end deviates from described tower body to tiltedly upper extension;
Wherein, at described the first wire cross-arm, the second wire cross-arm and privates cross-arm, hang after Y type suspension string, the contact point of Y type suspension string and wire is positioned at accordingly lower carriage in the projection of described level in the projection of horizontal plane.
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| CN201310612789.1A CN103726703B (en) | 2013-11-22 | 2013-11-22 | A kind of alternating-current extra-high voltage one-tower double-circuit linear tower |
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| CN201310612789.1A CN103726703B (en) | 2013-11-22 | 2013-11-22 | A kind of alternating-current extra-high voltage one-tower double-circuit linear tower |
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| CN103726703B CN103726703B (en) | 2016-04-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178677A (en) * | 2015-08-21 | 2015-12-23 | 国家电网公司 | Linear tower for ultrahigh-voltage direct-current lines and with two poles arranged vertically |
| CN105316704A (en) * | 2014-07-02 | 2016-02-10 | 中国有色（沈阳）冶金机械有限公司 | High-electric-conductive anode assembly effectively solving inward-bending deformation |
| CN107869271A (en) * | 2016-09-23 | 2018-04-03 | 国家电网公司 | Pyramidal structure of ± 1100kV the extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105178677A (en) * | 2015-08-21 | 2015-12-23 | 国家电网公司 | Linear tower for ultrahigh-voltage direct-current lines and with two poles arranged vertically |
| CN107869271A (en) * | 2016-09-23 | 2018-04-03 | 国家电网公司 | Pyramidal structure of ± 1100kV the extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower |
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| CN103726703B (en) | 2016-04-13 |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: CHINA POWER ENGINEERING CONSULTING (GROUP) CORPORATION Applicant after: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Applicant after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant after: Co., Ltd of Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant after: Co., Ltd of Huabei Power Design Inst., China Power Engineering Consulting Group Applicant after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Applicant after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Applicant after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: China Power Engineering Consulting Group Corporation Applicant before: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Applicant before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor Applicant before: Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant before: Huabei Power Design Inst., China Power Engineering Consulting Group Applicant before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation Applicant before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
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