CN201953131U - 220kV one-tower double-loop straight corner penetrating tower - Google Patents

220kV one-tower double-loop straight corner penetrating tower Download PDF

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Publication number
CN201953131U
CN201953131U CN2011200186854U CN201120018685U CN201953131U CN 201953131 U CN201953131 U CN 201953131U CN 2011200186854 U CN2011200186854 U CN 2011200186854U CN 201120018685 U CN201120018685 U CN 201120018685U CN 201953131 U CN201953131 U CN 201953131U
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CN
China
Prior art keywords
arm
tower
string
wire
horizontal type
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Expired - Lifetime
Application number
CN2011200186854U
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Chinese (zh)
Inventor
王辉
李志强
张世杰
赵贞欣
王强
刘哲
李旭
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China Electric Power Construction Group Hebei electric survey and Design Research Institute Co., Ltd.
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Hebei Electric Power Design and Research Institute
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Priority to CN2011200186854U priority Critical patent/CN201953131U/en
Application granted granted Critical
Publication of CN201953131U publication Critical patent/CN201953131U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a 220kV one-tower double-loop straight corner penetrating tower, which comprises two wire cross arms, a straight arm and a tower body, wherein the two wire cross arms are arranged in parallel; the upper part of the entire tower has a transverse H shape; the upper layer of wire cross arm is arranged on the top end of the straight arm; the lower layer of wire cross arm is arranged at the junction between the straight arm and the tower body; the two wire cross arms on each side are provided with three transverse V-shaped suspension strings for suspending three-phase power transmission wires; wire suspension points of the three transverse V-shaped suspension strings are triangularly arranged; and the two ends of the upper layer of wire cross arm are provided with wire suspension points for suspending ground wires. The 220kV one-tower double-loop straight corner penetrating tower can directly penetrate through a 500vK straight tower with wire suspension height of 28m and above; and construction is facilitated, a penetration scheme is simplified, a line route is optimized, and construction cost is reduced.

Description

220kV common-tower double-return straight line corner bores tower more
Technical field
The utility model relates to the iron tower on the ultra-high-tension power transmission line, and the straight line corner on particularly a kind of 220kV transmission line of electricity bores tower more.
Background technology
In the ultra-high-tension power transmission line of power system 220kV, mostly with common-tower double-return Lu Weizhu, the tower head size is higher.When boring more high voltage grade circuit in the transmission line of electricity at 220kV for example during the 500kV transmission line of electricity, brill point selection more is very difficult, adopts modes such as the 220kV transmission line of electricity detours, the 500kV transmission line of electricity rises the tower transformation, 220kV transmission line of electricity double loop anchor support bores more, single time anchor support of two times local changes of 220kV transmission line of electricity to realize boring more usually.Technical scheme is all very complicated, and need power cut construction, difficulty of construction is big, investment is high, inconvenient operation maintenance.
At present, the 220kV common-tower double-return bores more, and tower all adopts the anchor support pattern, because anchor support can reduce the height of exhaling of iron tower to greatest extent, on the basis that guarantees the requirement that electric clearance after engineering is built up and ambient influnence satisfy national regulation, reducing the width of corridor of UHV transmission line, thereby further solve the corridor resource of China's transmission line of electricity.But anchor support since wire jumper have a tower head structure more complicated, the tower head height is difficult to compression, the wire jumper sag is often restricting iron tower and is exhaling high further reduction.
Although conventional 20kV common-tower double-return tangent tower exhale height low than anchor support, exhale height lower just because of tangent tower, therefore certainly exist the problem of windage yaw discharge.Yet, if there is not the wire jumper problem in the brill that adopts tangent tower to carry out high voltage grade transmission line of electricity more, can effectively compress the tower head size, simplify the tower head structure.If therefore can solve because of tangent tower and exhale the high low windage yaw discharge problem that causes, just the requirement that so easier satisfied brill is got over, realization 220kV common-tower double-return circuit directly bores 500kV circuit more.
The utility model content
The utility model technical issues that need to address provide a kind of simple in structure, can make things convenient for the 500kV transmission line of electricity successfully to bore the more tangent tower of 220kV double-circuit line.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of 220kV common-tower double-return straight line corner bores tower more, comprise body of the tower, be connected in the straight-arm on body of the tower top and be fixedly connected on lead cross-arm on the straight-arm, described straight-arm is two ends two the lead cross-arms that be arranged in parallel up and down, the topping wire cross-arm is installed in the straight-arm top, following layer conductor cross-arm is installed in the junction of straight-arm and body of the tower, lead cross-arm and straight-arm are I-shaped structure, and two lead cross-arms are divided into loop, the left and right sides through straight-arm to be supported; Three horizontal type V-types that hang transmission pressures string that dangles is set respectively between two lead cross-arms of every side, and three horizontal type V-types hanging wire point of going here and there that dangles is triangularly arranged; Be provided with the hanging wire point that hangs ground wire at the two ends of topping wire cross-arm.
Improvement of the present utility model is: described three horizontal type V-types dangle to go here and there all has an end to be connected on the topping wire cross-arm, the dangle other end of string of horizontal type V-type in the middle of wherein being positioned at also is connected on the topping wire cross-arm, middle horizontal type V-type the dangle tie point of string and topping wire cross-arm of two tie points and two other horizontal type V-type of string and topping wire cross-arm that dangles is close, the dangle other end of string of two horizontal type V-types that are positioned at both sides is connected down on the layer conductor cross-arm, makes the dangle hanging wire point triangularity arrangement of string of three horizontal type V-types.This horizontal type V-type dangle the string suspended structure under the situation that does not increase gold utensil, can satisfy the requirement of 10 °~20 ° of corners.
Further improvement of the utility model is: described three horizontal type V-types dangle the string an end be connected on the topping wire cross-arm, the other end is connected down on the layer conductor cross-arm, horizontal type V-type in the middle of wherein being positioned at dangle one of them the upper end of string of upper end and the horizontal type V-type that is positioned at both sides of string of dangling is approaching, horizontal type V-type in the middle of being positioned at the dangle lower end of string of lower end and another horizontal type V-type that is positioned at both sides of string of dangling is approaching, the dangle hanging wire point triangularity arrangements of string of three horizontal type V-types.This horizontal type V-type dangle the string suspended structure under the situation that does not increase gold utensil, can satisfy the requirement of 20 °~50 ° of corners.
The improvement of described lead cross-arm is: described lead cross-arm is a trapezium structure, and the topping wire cross-arm is a trapezoid, and following layer conductor cross-arm is for trapezoidal.
Improvement of the present utility model also is: the dangle hanging wire of string of described three horizontal type V-types is pressed isosceles triangle and is arranged.
The improvement of described body of the tower is: described body of the tower is three layers a herringbone support structure.
Because the technological progress of having adopted technique scheme, the utility model to obtain is:
The utility model is under the prerequisite that satisfies aspects such as electric clearance, lightning protection, Insulation Coordination, electromagnetic environment, greatly reduce the tower head height, and adopt the horizontal type V-type string that dangles, efficiently solve tangent tower and exhale and exceed the low windage yaw discharge problem that causes, satisfied the comprehensive force request of lead gravity, uplift force, tension force and wind load etc.; Owing to do not exist anchor support to be subjected to the factor of wire jumper restriction, can make the height of tower head lower.Simultaneously, lead is designed to rounded projections arranged, on the basis that guarantees discharging gap between lightning protection properties and lead, the spacing of the horizontal direction between the phase transmission pressure of both sides is shortened greatly, and promptly the width of corridor of tangent tower is reduced greatly; Whole tower head is arranged closely, has reduced the tower head size effectively, has reduced the iron tower height, has saved the shared space of tangent tower, has saved material, greatly reduces the cost of high voltage power transmission project engineering.
The utility model can directly bore and get over the hanging wire height is 28m and above 500kV tangent tower, does not need the 500kV circuit is carried out any transformation convenient construction and operation.Point selection is very easy to because the tangent tower hanging wire height of 500kV circuit 80% more than 28m reaches, therefore bores more.The utility model can satisfy two kinds of service conditions by the change string mounting means that dangles, and is respectively 10 °~20 ° and 20 °~50 ° corners, can simplify to bore Vietnamese side's case, optimize line route, and then the reduction construction costs.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is an another kind of structural representation of the present utility model;
Fig. 3 is used to bore the schematic diagram of 500kV transmission line of electricity more for the utility model;
Fig. 4 is the vertical view of Fig. 3.
Wherein: 1.220kV bores tower more, 11. bodies of the tower, 12. straight-arms, 13. lead cross-arms, the 14. horizontal type V-types string that dangles, 15. hanging wires point, 2.500kV tangent tower, 3.500kV anchor support, 4.500kV power line, 5.220kV power line.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further details:
220kV common-tower double-return straight line corner bores tower more, comprises two lead cross-arms 13, straight-arm 12 and body of the tower 11.Straight-arm is fixedly connected on the top of body of the tower, and body of the tower is that three layers of V-structure support.
Two lead cross-arms are set in parallel in the two ends up and down of straight-arm, and be provided with vertical with straight-arm, make the top of whole tower be I-shaped structure.Two lead cross-arms are trapezium structure, and the topping wire cross-arm is a trapezoid, are installed in the top of straight-arm, and following layer conductor cross-arm is installed in the junction of straight-arm and body of the tower for trapezoidal, and two lead cross-arms are divided into loop, the left and right sides through straight-arm to be supported.
Be respectively arranged with three horizontal type V-types string that dangles between two lead cross-arms of every side, be used to hang the three-phase power transmission lead, the center that three hanging wire points are the three-phase power transmission lead is isosceles triangle and arranges; Ground wire is suspended on the hanging wire point at topping wire cross-arm two ends.
Fig. 1 is a kind of structural representation that hangs transmission pressure of the present utility model, transmission pressure be suspended on the horizontal type V-type dangle the string hanging wire point 15 on, three horizontal type V-types are dangled to go here and there and are all had an end to be connected on the topping wire cross-arm, the dangle other end of string of horizontal type V-type in the middle of wherein being positioned at also is connected on the topping wire cross-arm, middle horizontal type V-type the dangle tie point of string and topping wire cross-arm of two tie points and two other horizontal type V-type of string and topping wire cross-arm that dangles is close, the dangle other end of string of two horizontal type V-types that are positioned at both sides is connected down on the layer conductor cross-arm, this suspended structure can satisfy the requirement of 10 °~20 ° of corners under the situation that does not increase gold utensil.
Fig. 2 is the another kind of structural representation that hangs transmission pressure of the present utility model, transmission pressure be suspended on the horizontal type V-type dangle the string hanging wire point on, a dangle end of string of three horizontal type V-types is connected on the topping wire cross-arm, the other end is connected down on the layer conductor cross-arm, horizontal type V-type in the middle of wherein being positioned at dangle one of them the upper end of string of upper end and the horizontal type V-type that is positioned at both sides of string of dangling is approaching, horizontal type V-type in the middle of being positioned at the dangle lower end of string of lower end and another horizontal type V-type that is positioned at both sides of string of dangling is approaching, this horizontal type V-type dangle the string suspended structure under the situation that does not increase gold utensil, can satisfy the requirement of 20 °~50 ° of corners.
The utility model is applied to bore and gets in the 500kV transmission line of electricity, as shown in Figure 3 and Figure 4.Establish a basic 500kV anchor support between two basic tangent towers of 500kV transmission line of electricity, the power line of 500kV is connected between tangent tower and the anchor support; And two basic 220kV common-tower double-return straight line corners brills are got over the both sides that tower is based upon the 500kV transmission line of electricity, and the 220kV power line is got over from the following drill with ferrule of 500kV power line.Bore the parameters such as distance of exhaling height, the corner number of degrees and 500kV iron tower of tower more according to actual conditions by adjusting this when boring more, can realize.

Claims (6)

1. a 220kV common-tower double-return straight line corner bores tower more, comprise body of the tower (11), be connected in the straight-arm (12) on body of the tower (11) top and be fixedly connected on lead cross-arm (13) on the straight-arm, it is characterized in that: described straight-arm (12) is two ends two the lead cross-arms (13) that be arranged in parallel up and down, the topping wire cross-arm is installed in straight-arm (12) top, following layer conductor cross-arm is installed in the junction of straight-arm and body of the tower, lead cross-arm (13) is I-shaped structure with straight-arm (12), and two lead cross-arms are divided into loop, the left and right sides through straight-arm to be supported; Three horizontal type V-types that hang transmission pressures string (14) that dangles is set respectively between two lead cross-arms of every side, and the dangle hanging wire point (15) of string (14) of three horizontal type V-types is triangularly arranged; Be provided with the hanging wire point that hangs ground wire at the two ends of topping wire cross-arm.
2. 220kV common-tower double-return straight line corner according to claim 1 bores tower more, it is characterized in that: described three horizontal type V-types dangle to go here and there all has an end to be connected on the topping wire cross-arm, the dangle other end of string of horizontal type V-type in the middle of wherein being positioned at also is connected on the topping wire cross-arm, middle horizontal type V-type the dangle tie point of string and topping wire cross-arm of two tie points and two other horizontal type V-type of string and topping wire cross-arm that dangles is close, the dangle other end of string of two horizontal type V-types that are positioned at both sides is connected down on the layer conductor cross-arm, makes dangle hanging wire point (15) the triangularity arrangement of string of three horizontal type V-types.
3. 220kV common-tower double-return straight line corner according to claim 1 bores tower more, it is characterized in that: described three horizontal type V-types dangle the string an end be connected on the topping wire cross-arm, the other end is connected down on the layer conductor cross-arm, horizontal type V-type in the middle of wherein being positioned at dangle one of them the upper end of string of upper end and the horizontal type V-type that is positioned at both sides of string of dangling is approaching, horizontal type V-type in the middle of being positioned at the dangle lower end of string of lower end and another horizontal type V-type that is positioned at both sides of string of dangling is approaching, and dangle hanging wire point (15) triangularity of string of three horizontal type V-types is arranged.
4. bore tower more according to each described 220kV common-tower double-return straight line corner of claim 1 to 3, it is characterized in that: described lead cross-arm (13) is a trapezium structure, and the topping wire cross-arm is a trapezoid, and following layer conductor cross-arm is for trapezoidal.
5. 220kV common-tower double-return straight line corner according to claim 1 bores tower more, it is characterized in that: the dangle hanging wire of string (14) of described three horizontal type V-types is pressed the isosceles triangle arrangement.
6. 220kV common-tower double-return straight line corner according to claim 1 bores tower more, and it is characterized in that: described body of the tower (11) is three layers a herringbone support structure.
CN2011200186854U 2011-01-21 2011-01-21 220kV one-tower double-loop straight corner penetrating tower Expired - Lifetime CN201953131U (en)

Priority Applications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817489A (en) * 2012-09-11 2012-12-12 河北省电力勘测设计研究院 Double-tower-window double-loop linear tower
CN103972836A (en) * 2014-03-24 2014-08-06 于永洋 Electric transmission line drilling method
CN105406434A (en) * 2015-12-15 2016-03-16 中国电力科学研究院 Lead wire hanging method for preventing windage yaw of power transmission line in strong wind area
CN106639489A (en) * 2017-01-12 2017-05-10 中国能源建设集团天津电力设计院有限公司 500 kV large-angle ladder type ground wire single circuit penetrating-crossing tower
CN109898913A (en) * 2019-01-30 2019-06-18 中国电建集团河北省电力勘测设计研究院有限公司 A kind of double loop 500kV straight line, which bores, gets over tower

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817489A (en) * 2012-09-11 2012-12-12 河北省电力勘测设计研究院 Double-tower-window double-loop linear tower
CN103972836A (en) * 2014-03-24 2014-08-06 于永洋 Electric transmission line drilling method
CN105406434A (en) * 2015-12-15 2016-03-16 中国电力科学研究院 Lead wire hanging method for preventing windage yaw of power transmission line in strong wind area
CN105406434B (en) * 2015-12-15 2018-07-10 中国电力科学研究院 A kind of inclined conducting wire hanging method of strong wind area power transmission line wind
CN106639489A (en) * 2017-01-12 2017-05-10 中国能源建设集团天津电力设计院有限公司 500 kV large-angle ladder type ground wire single circuit penetrating-crossing tower
CN109898913A (en) * 2019-01-30 2019-06-18 中国电建集团河北省电力勘测设计研究院有限公司 A kind of double loop 500kV straight line, which bores, gets over tower

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CP01 Change in the name or title of a patent holder

Address after: 050031 No. 6 Jianhua Street, Shijiazhuang City, Hebei Province

Patentee after: China Electric Power Construction Group Hebei electric survey and Design Research Institute Co., Ltd.

Address before: 050031 No. 6 Jianhua Street, Shijiazhuang City, Hebei Province

Patentee before: Hebei Province Power Surveying Design & Research Institute

CP01 Change in the name or title of a patent holder
CX01 Expiry of patent term

Granted publication date: 20110831

CX01 Expiry of patent term