CN210032836U - Novel T of two circuit connects tower - Google Patents
Novel T of two circuit connects tower Download PDFInfo
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- CN210032836U CN210032836U CN201920725271.1U CN201920725271U CN210032836U CN 210032836 U CN210032836 U CN 210032836U CN 201920725271 U CN201920725271 U CN 201920725271U CN 210032836 U CN210032836 U CN 210032836U
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Abstract
The utility model discloses a novel T of double circuit line connects tower, including former circuit iron tower, distance between the cross arm of former circuit iron tower increases the setting, and its middle part is provided with the T of perpendicular to thread cross arm direction and connects the cross arm, new founding a base double circuit T under the former circuit connects the tower, and former circuit wire hangs to on the thread cross arm, the wire lead wire of former circuit connects the cross arm to T and connects the cross arm through T and direct and double circuit connection, the ground wire cross arm of former circuit iron tower is T type structure, and this novel T of double circuit line connects tower has following benefit: reducing the construction work amount: the double-circuit T-connection tower wiring is adopted, the double-circuit T-connection of the circuit can be completed under the original circuit path, the T connection point only needs to be assembled into a 1-base tower, the point T-connection of the double-circuit is really realized, compared with the traditional T-connection scheme, the T-connection mode wiring is clear and simple, the number of the tower bases is reduced to 1 base, the engineering quantity is greatly reduced, and the construction period is shortened.
Description
Technical Field
The utility model relates to a T connects tower technical field, specifically is a novel T of two circuit connects tower.
Background
The T connection of the double-circuit lines on the same tower, particularly the same-direction double-T connection of the double-circuit lines on the same tower, has complex wiring mode, always troubles a difficult problem of line design, when the same-tower double-circuit lines are in outside T connection, particularly the vertically arranged double-circuit same-direction double-T connection, the T connection faces a mode of drilling the T wiring circuit on one side and crossing the T wiring circuit, the traditional T connection mode adopts a 3-4 base iron tower and a steel pole to drill the T wiring circuit after selecting a tension tower as a T connection point, and then combines the steel pole with the T wiring circuit on the other side to form a double circuit, so as to realize the double-circuit same-direction double-T connection, the traditional T connection mode has more towers, the wiring mode is complex, the T connection is more difficult to realize in a terrain limited section, the engineering cost is increased invisibly, unnecessary waste is caused, because the number of the towers is large, the occupied area is increased near the T connection point, a T-shaped connection circuit on the outer corner side of the power grid adopts a low-drill steel rod, a wire is close to the ground, the condition that external force touches the wire easily occurs, and a power grid accident is caused.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to overcome current defect, provide a novel T of two circuit and connect tower, reduce the construction work volume, practice thrift the tower material, reduce and take up an area of, strenghthened type ground wire support adopts modular structure, and production and processing is convenient, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel T of double circuit line connects tower, includes former circuit iron tower, distance between the cross arm of former circuit iron tower increases the setting, and its middle part is provided with the T of perpendicular to thread cross arm direction and connects the cross arm, a new basic double circuit T of founding connects tower under former circuit, and former circuit wire is hung to on the thread cross arm, the wire lead wire of former circuit to T connect the cross arm and directly be connected with double circuit through T connects the cross arm.
As an optimized technical scheme of the utility model, T connects the cross arm and is the crisscross staggered arrangement mode distribution with the thread cross arm.
As an optimized technical scheme of the utility model, the homoenergetic satisfies the electric clearance apart from the requirement between each layer cross arm.
As an optimized technical scheme of the utility model, this T connects the tower to adopt the material Q420 high-strength steel commonly used of transmission line iron tower.
As an optimized technical scheme of the utility model, the cross arm and the T of former circuit iron tower connect the cross arm staggered arrangement.
As an optimized technical scheme of the utility model, the ground wire cross arm of former circuit iron tower is T type structure.
As an optimized technical scheme of the utility model, all be equipped with insulator chain on each layer cross arm.
As an optimized technical scheme of the utility model, all be equipped with hydrophobic layer on the surface on each layer cross arm.
As an optimal technical scheme of the utility model, T connects the cross arm to be the tubular structure, and T connects the inboard of cross arm to be equipped with the resistance wire, T connects the outside of cross arm to be equipped with the solar power supply who provides the electric energy for the resistance wire, and solar power supply passes through wire and resistance wire electric connection.
Compared with the prior art, the beneficial effects of the utility model are that: this novel T of two circuit connects tower has following benefit:
1. reducing the construction work amount: the double-circuit T-connection tower wiring is adopted, the double-circuit T-connection of the circuit can be completed under the original circuit path, the T connection point only needs to be assembled into a 1-base tower, the point T-connection of the double-circuit is really realized, compared with the traditional T-connection scheme, the T-connection mode wiring is clear and simple, the number of the tower bases is reduced to 1 base, the engineering quantity is greatly reduced, and the construction period is shortened.
2. The tower material is saved, and the occupied area is reduced: ordinary T connects the mode, and the line construction is loaded down with trivial details, need be by near newly-built polybase shaft tower of T wiring way, not only increase the construction, operation maintenance work load, take up an area of many and intensive moreover, change into after novel T connects the tower, a basic T connects the tower can accomplish two times T and connects, has practiced thrift the column foot when reducing construction work load and has taken up an area of, reduces the influence to near environment of T contact, has improved iron tower land space utilization.
3. Reinforced ground wire support: the T-shaped tower-type ground wire support is T-shaped, and the ground wires can be hung in the main line direction and the T-shaped line direction, so that the protection capability of the ground wires on the main line and the T-shaped line wires is greatly improved.
4. Modular structure: the tower type is designed on the basis of a typical design tower type of a national grid company, the size of the typical design tower type has more engineering experience, the tower type is simple in structure, safe and reliable, the calculated amount in the design process is reduced, the process procedure of iron tower production and processing is simplified, and meanwhile the working efficiency of field constructors is improved.
5. The production and processing are convenient: this iron tower adopts transmission line iron tower material Q420 high-strength steel commonly used, can effectual saving tower material, and raw and other materials are extensive, and the purchase of being convenient for, and iron tower production and processing is convenient simple.
Drawings
FIG. 1 is a schematic diagram of the dual-circuit same-direction T-connection mode of the present invention;
FIG. 2 is a schematic diagram of an original dual-loop equidirectional T-connection mode.
In the figure: 1 original line iron tower, 2 original lines and 3 double-loop T-joint tower.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a novel T of double circuit line connects tower, includes former circuit iron tower 1, and the distance between the cross arm of former circuit iron tower 1 increases the setting, and its middle part is provided with the T of perpendicular to thread cross arm direction and connects the cross arm, and a new basic double circuit T connects tower 3 under the former circuit, and 2 wires of former circuit are hung to the thread cross arm on, and the wire lead wire of former circuit 2 leads to the T and connects the cross arm and directly be connected with double circuit through the T and connect the cross arm.
The T-connection cross arms and the main line cross arms are distributed in a cross staggered arrangement mode.
The requirements of the electrical gap distance can be met among all layers of cross arms.
The T-joint tower is made of Q420 high-strength steel which is a common material of a power transmission line iron tower.
The cross arms and the T-connection cross arms of the original line iron tower 1 are arranged in a staggered mode.
The ground wire cross arm of the original line iron tower 1 is of a T-shaped structure.
Insulator strings are arranged on each layer of cross arm.
The surface of each layer of cross arm is provided with a hydrophobic layer, so that the cross arm corrosion caused by moisture erosion is avoided, and the use safety is ensured.
The T connects the cross arm to be the tubular structure, and the inboard of T connects the cross arm is equipped with the resistance wire, and the outside of T connects the cross arm is equipped with the solar power supply who provides the electric energy for the resistance wire, and solar power supply passes through wire and resistance wire electric connection, avoids snow on the T connects the cross arm through the heating, can be adapted to in cold areas, adopts solar power supply as power supply unit, green.
The novel T of two circuit line connects application effect of tower: the double-circuit line T-connection tower is suitable for various newly built or modified 110 kV and 35 kV overhead lines, has strong practicability and wide universality, saves occupied area and investment, and simplifies the workload in engineering construction at the same time, and the 110 kV double-T connection line adopts a double-circuit T-connection tower mode to reduce the data indexes of tower foundation material quantity and occupied area by about 60 percent compared with the original T-connection mode, saves the investment by 80 ten thousand yuan, and has considerable economic benefit and social benefit.
In 2011, in a 110 kV line switching project of a 220 kV station of a well, a T joint of a double-T Jiazhang double-circuit line of the well station is just positioned on the east side of the well station and on the west side of the west king house village, because the T joint is close to the west king house, the coordination construction occupied area work is difficult, and the occupied area resistance of an iron tower is extremely large.
In the initial design, the difficulty of coordinating the occupied work is considered, the tower type is designed and adopted for double-loop T connection, and compared with the original T connection scheme, the tower type double-loop T connection has the following advantages:
1) the occupied area is saved, and the claim clearing amount is reduced: the number of the line T-junction iron towers is reduced from 5 foundations to 1 foundation, the tower foundations occupy 200 square meters, and the expenses of the young seedling compensation, the land occupation compensation and the like are correspondingly reduced.
2) Reduce shaft tower quantity, reduce the body investment: t contact shaft tower quantity reduces by a wide margin, and iron tower steel volume, basic steel concrete volume reduce simultaneously, and the corresponding reduction of volume is put in the basis excavation, reduces the body investment of T contact circuit by a wide margin.
3) Reducing the construction work amount and the construction period: after the number of the iron towers and the number of the foundations are reduced, the number of the construction processes such as foundation pit excavation, foundation pouring, iron tower assembly and the like is correspondingly reduced, the number of construction machines such as workers, cranes, excavators and the like is reduced, and the construction period is shortened at the same time.
4) Is beneficial to the safety of the circuit: the low drill steel rod is eliminated, the distance between the lead and the ground is obviously increased, the accident rate can be effectively reduced, and the safety of the line is improved.
According to the common double-loop T connection mode, a three-base double-loop terminal tower is required, two bases of low-drill tension steel poles are adopted, the total weight of the tower is about 50 tons, the double-loop T connection mode can be realized by adopting one base of the double-loop T connection tower, the weight of the iron tower is about 20 tons, the weight of a tower body can be saved by 30 tons, a four-base of a common scheme is changed into a one-base, only the investment of an engineering body can be reduced by about 40 ten thousand yuan, the manufacturing cost of the body is reduced by the double-loop T connection tower, the number of the tower bases is reduced, the construction occupied area coordination work and the blue-seedling compensation are correspondingly reduced, the total investment of T joints can be reduced by about 80 thousand yuan, the early-stage coordination work.
New and old T-connection mode main parameter comparison table
Novel circuit T connects scheme mainly through designing neotype shaft tower structure, realizes two return overhead line's T and connects on a basic strain tower, on the shaft tower, the main line cross arm becomes 90 staggered arrangements with T wiring circuit cross arm, only need during T connects to lead the main line wire to T connect the cross arm can to compress original many basic strain tower to a basic strain tower, both save taking up an area of and save the investment, and simplified the work progress moreover, reduced the work load of taking up an area of coordination work simultaneously.
Because the double-loop T tower connection mode does not use a low drill steel rod, the distance between the lead and the ground is obviously increased, the accident rate can be effectively reduced, and the safety of the line is improved.
The double-circuit T connection type is generally adopted in a power system with the voltage level of 110 kilovolts or below, the application ratio is high, and according to statistics, about 15 percent of circuits in the 110 kilovolt power system in the Shijiazhuang area are double-circuit T connection circuits.
The double-circuit line T-connection tower is suitable for various newly-built or improved 110-kilovolt and 35-kilovolt overhead lines, the types of the conducting wires and the ground wires suitable for the tower can include the types of the common ground wires in a 110-kilovolt and 35-kilovolt power system of a north-south network of a river, the tower is strong in practicability and wide in universality, investment is reduced, the concept of 'environment friendliness and resource saving' of national network companies can be practiced, the three-win and good situation can be formed, and the double-circuit line T-connection tower is very suitable for being popularized in the national network company system.
When in use: the double-loop T-shaped connection tower is improved on the basis of a typical iron tower designed by a national grid company, the distance between the original tower type main line cross arms is increased, and T-shaped connection cross arms perpendicular to the direction of the main line cross arms are arranged in the middle of the original tower type main line cross arms, so that the T-shaped connection cross arms and the main line cross arms are in a cross staggered arrangement mode, the requirement of the distance between the electric gaps can be met between all layers of cross arms, when the double-loop lines are in the same-direction T connection, a base double-loop T-shaped connection tower can be newly erected under the original lines, the original line conducting wires are hung to the main line cross arms, the original line conducting wires are led to the T-shaped connection cross arms, then the T-shaped connection cross arms are directly connected with the double loops, the requirement of the double-loop lines in the same-direction T connection is met, and the T-shaped.
The utility model discloses can reduce construction work volume, practice thrift the tower material, reduce and take up an area of, strenghthened type ground wire support adopts modular structure, and production and processing is convenient.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a novel T of two return lines connects tower, includes former circuit iron tower (1), its characterized in that: the distance between the cross arms of the original line iron tower (1) is increased, the T-connection cross arm perpendicular to the direction of the main line cross arm is arranged in the middle of the cross arms, a base double-loop T-connection tower (3) is newly erected below the original line (2), the lead of the original line (2) is hung on the main line cross arm, and the lead of the original line (2) is connected to the T-connection cross arm and directly connected with the double loops through the T-connection cross arm.
2. The double-circuit line novel T-joint tower as claimed in claim 1, characterized in that: the T-connection cross arms and the main line cross arms are distributed in a cross staggered arrangement mode.
3. The double-circuit line novel T-joint tower as claimed in claim 1, characterized in that: the requirements of the electrical gap distance can be met among all layers of cross arms.
4. The double-circuit line novel T-joint tower as claimed in claim 1, characterized in that: the T-joint tower is made of Q420 high-strength steel which is a common material of a power transmission line iron tower.
5. The double-circuit line novel T-joint tower as claimed in claim 1, characterized in that: the cross arms and the T-shaped cross arms of the original line iron tower (1) are arranged in a staggered mode.
6. The double-circuit line novel T-joint tower as claimed in claim 1, characterized in that: the ground wire cross arm of the original line iron tower (1) is of a T-shaped structure.
7. The double-circuit line novel T-joint tower as claimed in claim 1, characterized in that: insulator strings are arranged on each layer of cross arm.
8. The double-circuit line novel T-joint tower as claimed in claim 1, characterized in that: hydrophobic layers are arranged on the surfaces of the cross arms of all the layers.
9. The double-circuit line novel T-joint tower as claimed in claim 1, characterized in that: the T-connection cross arm is of a tubular structure, a resistance wire is arranged on the inner side of the T-connection cross arm, a solar power supply for providing electric energy for the resistance wire is arranged on the outer side of the T-connection cross arm, and the solar power supply is electrically connected with the resistance wire through a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920725271.1U CN210032836U (en) | 2019-05-21 | 2019-05-21 | Novel T of two circuit connects tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920725271.1U CN210032836U (en) | 2019-05-21 | 2019-05-21 | Novel T of two circuit connects tower |
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| CN210032836U true CN210032836U (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017051A (en) * | 2019-05-21 | 2019-07-16 | 石家庄电业设计研究院有限公司 | A kind of novel T of double-circuit line connects tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017051A (en) * | 2019-05-21 | 2019-07-16 | 石家庄电业设计研究院有限公司 | A kind of novel T of double-circuit line connects tower |
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