CN213585090U - Power transmission line corner tower based on near-far combination of 220kV double-loop and 500kV single-loop - Google Patents
Power transmission line corner tower based on near-far combination of 220kV double-loop and 500kV single-loop Download PDFInfo
- Publication number
- CN213585090U CN213585090U CN202022305711.3U CN202022305711U CN213585090U CN 213585090 U CN213585090 U CN 213585090U CN 202022305711 U CN202022305711 U CN 202022305711U CN 213585090 U CN213585090 U CN 213585090U
- Authority
- CN
- China
- Prior art keywords
- cross arm
- circuit
- double
- rod
- term
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model relates to a corner tower on power transmission line, especially a power transmission line corner tower based on 220kV double circuit and 500kV single circuit near-far combination, its structural feature lies in, the upper strata inboard cross arm includes far-term 500kV single circuit inner zone check cross arm and near-term 220kV double circuit outer zone check cross arm, the front and back side on the inner zone check cross arm all is provided with two wire hanging plates that can articulate 500kV single circuit double conductor, far-term 500kV single circuit inner zone check cross arm forms the detachable connection with near-term 220kV double circuit outer zone check cross arm; the middle layer outer side cross arm and the middle layer inner side cross arm are used as the middle layer cross arm in the near term and used as the lower layer cross arm of the 500kV single loop in the far term. The utility model discloses a 220kV two return circuits corner tower can realize stepping up through simple transformation and reform transform into the target of 500kV single circuit corner tower, and the former circuit corridor of make full use of need not to open up new circuit route, greatly reduced the engineering investment, saved valuable land resource.
Description
Technical Field
The utility model relates to a corner shaft tower on transmission line, especially a transmission line corner tower based on 220kV double loop and 500kV single loop are close far to combine. The transmission line shaft tower includes tangent tower and corner tower, the utility model is suitable for a handing-off tower.
Background
According to power system power grid planning, combined with regional power grid and power load development, it often happens that the power grid plans and builds the power transmission line according to 220kV in the current period, and the voltage is boosted to 500kV in a long-term view. Taking the fact that a power grid in a certain area is built in good fortune, in order to meet the requirement of sending electric energy out of a certain power plant, two 220kV channels are newly built in the period, with the construction of a 500kV transformer substation in a distant view near the channels and the continuous development of a grid frame, the trend of normal operation of the original two 220kV channels is gradually reduced, the functions and the exerted benefits of the related channels in the power grid are gradually reduced, and in combination with the construction of the 500kV transformer substation in the distant view, a new line corridor needs to be created to be connected into the 500kV transformer substation.
Aiming at the problems, the conventional method is to dismantle all the original 220kV lines and newly build a 500kV transmission line to be connected into a proposed 500kV transformer substation. However, with the development of economy and the construction of power grids, land resources are increasingly scarce, the conventional scheme not only greatly increases the investment of lines, but also has very high difficulty in re-opening line corridors, and possibly causes that engineering construction is difficult to smoothly develop.
Disclosure of Invention
An object of the utility model is to provide a transmission line corner tower based on 220kV double circuit and 500kV single circuit nearly far combine that reduces the engineering construction work volume, reduces the construction degree of difficulty, reduces the line investment according to prior art's weak point.
The purpose of the utility model is realized through the following ways:
the power transmission line corner tower based on near-far combination of a 220kV double loop and a 500kV single loop comprises a tower body, an upper layer cross arm, a middle layer cross arm and a lower layer cross arm, wherein each layer of cross arm comprises an inner side cross arm and an outer side cross arm, the tower body is used as a boundary, the inner side direction of the line corner is the inner side cross arm, and the outer side direction of the line corner is the outer side cross arm; the structure is characterized in that the cross arm at the inner side of the upper layer comprises a long-term 500kV single-circuit inner cell cross arm and a short-term 220kV double-circuit outer cell cross arm, two wire hanging plates capable of hanging 500kV single-circuit double wires are arranged at the front side and the rear side of the long-term 500kV single-circuit inner cell cross arm, and a wire hanging plate capable of hanging 220kV double-circuit single wires is arranged at the front side and the rear side of the end part of the short-term 220kV double-circuit outer cell cross arm; the long-term 500kV single-circuit inner cell cross arm is detachably connected with the short-term 220kV double-circuit outer cell cross arm through a node plate A1 and a fastening bolt;
the upper layer outer side cross arm is an upper layer outer side cross arm for a recent 220kV double-circuit; the middle layer outer side cross arm and the middle layer inner side cross arm are used as a middle layer cross arm for 220kV double loops recently and used as a lower layer cross arm for 500kV single loops in a long term, and connecting pieces are arranged at the end parts of the middle layer outer side cross arm and the middle layer inner side cross arm and can be connected with jumper wire frame angle steel for 500kV single loops in the long term; the lower layer inner side cross arm and the lower layer outer side cross arm are both near 220kV double-circuit lower layer cross arms; the vertical distance between the upper layer cross arm and the middle layer cross arm is larger than 7 m.
Thus, when a 220kV double-circuit corner tower is built recently, an upper layer inner side cross arm is formed by a long-term 500kV single-circuit inner cell cross arm and a short-term 220kV double-circuit outer cell cross arm, a 220kV double-circuit vertical arrangement corner tower is formed by combining the upper layer outer side cross arm, the middle layer inner side cross arm, the lower layer inner side cross arm and the lower layer outer side cross arm, and a single-conductor hanging plate is arranged at the end part of each layer of each side cross arm to hang 220kV double-circuit conductors; when a 500kV single-circuit angle tower in a long term is built, the 220kV double-circuit outer cell cross arm in the short term is dismantled on the basis of the 220kV double-circuit angle tower in the short term, the 500kV single-circuit inner cell cross arm in the long term is reserved as the upper layer cross arm of the 500kV angle tower, the upper layer outer side cross arm, the lower layer inner side cross arm and the lower layer outer side cross arm for the 220kV double circuit in the short term are dismantled, the middle layer outer side cross arm and the middle layer inner side cross arm for the 220kV double circuit are used as the lower layer cross arm for the 500kV single circuit in the long term, and a jumper wire frame for the 500kV single circuit is installed through a connecting piece, so that the corner installation of 500kV wires is facilitated, and the insulation requirement and the safety distance between the wires are ensured.
When a 220kV double-loop angle tower is converted into a 500kV long-term single-loop angle tower, the direct insulation requirement and the safety distance requirement of a wire are considered, and on the basis of ensuring the vertical distance between an upper layer cross arm and a middle layer cross arm, a hanging point of the upper layer wire is retracted from the outer layer cross arm to the tower body direction to the inner layer cross arm, so that the distance between the upper wire and the lower wire is expanded, and the requirement on the distance between the wires is met. Therefore, the utility model discloses a to the structural transformation of upper strata inboard cross arm, through on, in, laying of perpendicular distance between the lower floor, only need demolish partial cross arm and newly-increased jumper frame, realized that 220kV double-circuit corner tower can realize stepping up the target of transforming into 500kV single-circuit corner tower through simple transformation, make the back iron tower height that steps up to transform need not to adjust, the wire of circuit, the equal reuse of ground wire, the former circuit corridor of make full use of, need not to open up new circuit route, greatly reduced the engineering investment, valuable land resource has been saved.
The grid cross arm in the long-term 500kV single loop comprises a front cross rod, a rear cross rod, a longitudinal rod, a front transverse oblique rod, a rear transverse oblique rod, a front vertical oblique rod and a rear vertical oblique rod, wherein the longitudinal rod is connected with the front cross rod and the rear cross rod; the uniform ends of the front cross rod and the rear cross rod are connected with a main material of the tower body, the other ends of the front cross rod and the rear cross rod are connected with a lattice cross arm outside a 220kV double-circuit zone in the near term and are suspended parts in the far term; the longitudinal rod is vertical to the front cross rod and the rear cross rod, and two ends of the longitudinal rod are fixedly connected with the two cross rods; the joints of the front cross rod and the rear cross rod with the main material of the tower body are respectively provided with a 500kV single-loop double-wire hanging plate; the joints of the two ends of the longitudinal rod are also respectively provided with a 500kV single-loop double-wire hanging plate;
the front transverse diagonal rod and the rear transverse diagonal rod form a horizontal V-shaped web member, the connecting end of the horizontal V-shaped web member is fixedly connected with the middle part of the main material of the tower body, and two free ends of the horizontal V-shaped web member are respectively and correspondingly fixedly connected with two ends of the longitudinal rod; the lower ends of the front vertical diagonal rod and the rear vertical diagonal rod are respectively and correspondingly fixedly connected with the front cross rod and the rear cross rod, and the upper ends of the front vertical diagonal rod and the rear vertical diagonal rod are respectively and correspondingly fixedly connected with the main tower body material.
Therefore, the tower body main material (transverse), the front cross rod, the rear cross rod, the longitudinal rod for connecting the front cross rod and the rear cross rod and the horizontal V-shaped web member form a horizontal truss, the wire hanging plates of the 500kV single-loop double-wire are arranged on four corner points of the horizontal truss, the front vertical inclined rod and the rear vertical inclined rod provide oblique lifting force for the horizontal truss, and in addition, the front cross rod and the rear cross rod can provide connection and support of a jumper wire plate for the wire at one end serving as a suspension part in a long term, so that a complete stress system is formed and becomes an upper-layer cross arm of the long-term 500kV single-loop, so that the technical scheme for converting a short-term 220kV double-loop angle tower into a long-term 500kV single-loop angle tower becomes realizable, and various problems of engineering construction are solved.
The recent 220kV double-circuit vertical distance between the middle-layer cross arm and the lower-layer cross arm is larger than 6 m.
According to the design specification of 110 kV-750 kV overhead transmission lines (GB 50545-2010), the ground distance (the height of the lowest wire from the ground) of a 220kV transmission line is required to be 6.5m, the ground distance of 500kV is 10.5m, and the difference is 4 m. In order to meet the requirement that the ground distance of a lower-layer cross arm of 500kV is more than 10.5m, the vertical distance between a lower-layer cross arm of a 220kV double-circuit corner tower and a middle-layer cross arm of 220kV is set to be not less than 6m during design and construction, and the ground distance of the middle-layer cross arm (the cross arm under 500 kV) of the 220kV lower-layer cross arm can be more than 10.5m after the lower-layer cross arm of 220kV is dismantled.
The near 220kV double loop adopts double split conductors, and the far 500kV single loop adopts 4 split conductors.
Therefore, during boosting construction, every two single hanging point conductors of the 220kV double-loop are combined into 4-split conductors which are directly used for the 500kV single loop, namely, the conductors of the 220kV double-loop can be completely used for the 500kV single loop only by simple doubling and lifting, and no new conductor is needed; meanwhile, the ground wire of the 220kV line can also be directly used for the 500kV line, so that the wire investment is greatly saved, the construction efficiency is improved, and the manpower and material resources are saved.
To sum up, the utility model provides a transmission line corner tower based on 220kV double circuit and 500kV single circuit are close far to be combined, arrange through the special district check structure to the upper cross arm, combine the floor height requirement of two kinds of return circuits organically, arrange long term wire link plate in advance, demolish upper cross arm outer district check, newly-increased jumper frame, the wire of circuit, the equal reuse of ground wire, make alright accomplish near term 220kV double circuit corner tower and trun into the iron tower of long term 500kV single circuit corner tower and step up the requirement after simple structural change, need not to open up new circuit route, greatly reduced the engineering investment, make full use of former circuit corridor has saved the valuable land resource.
Drawings
Fig. 1 is a schematic diagram of a tower head structure of a recent 220kV double-circuit corner tower of the present invention;
fig. 2 is a schematic diagram of a tower head structure of a long-term 500kV single-circuit angle tower of the present invention;
fig. 3 is a schematic front view of an upper inner side cross arm and a part of a tower body of the recent 220kV double-circuit corner tower;
fig. 4 is a schematic lower plane structure diagram of an upper inner side cross arm and a part of a tower body of the recent 220kV double-circuit corner tower;
fig. 5 is a schematic front view of an upper layer outside cross arm and a part of a tower body of the recent 220kV double-circuit corner tower;
fig. 6 is a schematic front view of the outer cross arm and part of the tower body of the middle layer of the recent 220kV double-circuit angle tower;
FIG. 7 is a schematic view of a lower plane structure of a middle outer cross arm of the recent 220kV double-circuit corner tower;
fig. 8 is a schematic front view of an inner side cross arm and a part of a tower body of a middle layer of the recent 220kV double-circuit corner tower;
fig. 9 is a schematic view of the lower plane structure of the middle-layer inner cross arm of the recent 220kV double-circuit corner tower.
Fig. 10 is a schematic front view of an upper cross arm (i.e., an inner cell cross arm) and a part of a tower body of the long-term 500kV single-circuit turret;
fig. 11 is a schematic view of the upper cross arm (i.e., inner cell cross arm) and a lower plane structure of a part of the tower body of the long-term 500kV single-circuit turret;
fig. 12 is a schematic front view of the lower outer cross arm (i.e. the middle outer cross arm for the recent 220kV double circuit, refer to fig. 6) and a part of the tower body of the long-term 500kV single-circuit angle tower;
fig. 13 is a schematic view of the lower outer cross arm (i.e. the middle outer cross arm for the recent 220kV double circuit, refer to fig. 7) of the long-term 500kV single-circuit corner tower and the lower plane structure of part of the tower body;
fig. 14 is a schematic front view of the lower inner side cross arm (i.e. the middle inner side cross arm for the recent 220kV double circuit) and a part of the tower body of the long-term 500kV single circuit angle tower.
The present invention will be further described with reference to the following examples.
Detailed Description
The best embodiment is as follows:
referring to fig. 1-2, the power transmission line corner tower based on the combination of 220kV double-circuit and 500kV single-circuit near-far includes a tower body, an upper layer cross arm, a middle layer cross arm and a lower layer cross arm, each layer of cross arm includes an inner side cross arm and an outer side cross arm, and is bounded by the tower body, the inner side direction at the line corner is the inner side cross arm, and the outer side direction at the line corner is the outer side cross arm. As shown in the attached figure 1, the recent 220kV double-circuit is generally arranged into a three-layer cross arm and double-circuit vertical arrangement structure, and three-phase double-circuit wires are respectively arranged on the left and right of the upper, middle and lower layers. As shown in the attached figure 2, the structure is changed on the basis of the attached figure 1 to form a long-term 500kV single-circuit which is an upper-lower double-layer cross arm single-circuit triangular three-phase lead arrangement (one phase at the upper layer and one phase at the two ends of the lower layer).
In a recent 220kV double-circuit transmission line corner tower: the upper layer inner side cross arm comprises a long-term 500kV single-circuit inner cell cross arm 10 and a short-term 220kV double-circuit outer cell cross arm 11, the front side and the rear side of the long-term 500kV single-circuit inner cell cross arm 10 are respectively provided with two wire hanging plates A4 and A5 which can be used for hanging 500kV single-circuit double wires, and the front side and the rear side of the end part of the short-term 220kV double-circuit outer cell cross arm 11 are respectively provided with a wire hanging plate A3 which can be used for hanging 220kV double-circuit single wires; the long-term 500kV single-circuit inner cell cross arm is detachably connected with the short-term 220kV double-circuit outer cell cross arm through a node plate A1 and a fastening bolt.
The upper layer outer side cross arm 12 is an upper layer outer side cross arm for a near 220kV double-circuit and is dismantled when the voltage is increased in a long term; the middle-layer outer cross arm 22 and the middle-layer inner cross arm 21 are used as middle-layer cross arms for 220kV double loops recently and used as lower-layer cross arms for 500kV single loops in a long term, and connecting pieces are arranged at the end parts of the middle-layer outer cross arm 22 and the middle-layer inner cross arm 21 and can be connected with jumper wire frame angle iron 4 for the 500kV single loops in the long term; the lower-layer inner side cross arm 31 and the lower-layer outer side cross arm 32 are both short-term 220kV double-circuit lower-layer cross arms and are dismantled when the voltage is increased in a long term. The vertical distance between the upper layer cross arm and the middle layer cross arm is not less than 7m, and the vertical distance between the middle layer cross arm and the lower layer cross arm is not less than 6 m.
Referring to fig. 3, 4, 5, 10 and 11, a grid cross arm 10 in a long-term 500kV single-circuit comprises a front cross bar 101, a rear cross bar 102, a longitudinal bar 104 connecting the front cross bar and the rear cross bar, a front cross diagonal bar 105, a rear cross diagonal bar 103, a front vertical diagonal bar 107 and a rear vertical diagonal bar 108; the uniform ends of the front cross rod 101 and the rear cross rod 102 are connected with the main tower body material, and the other ends of the front cross rod 101 and the rear cross rod 102 are correspondingly connected with the front rod member 113 and the rear rod member 114 of the 220kV double-circuit outer cell cross arm through a node plate A1 in the near term; the longitudinal rod 104 is perpendicular to the front cross rod 101 and the rear cross rod 102, and two ends of the longitudinal rod are fixedly connected with the two cross rods; the connecting parts of the front cross bar 101 and the rear cross bar 102 and the main tower body are respectively provided with a 500kV single-loop double-conductor wire hanging plate A5; the joints of the two ends of the longitudinal rod 104 are also respectively provided with a 500kV single-loop double-wire lead hanging plate A4. The wire hanging plates A4 and A5 are installed in recent construction and used as reserved wire hanging plates for use after voltage boosting.
The front transverse diagonal rod 105 and the rear transverse diagonal rod 103 form a horizontal V-shaped web member, the connecting end of the horizontal V-shaped web member is fixedly connected with the middle part of the main material of the tower body, and two free ends of the horizontal V-shaped web member are respectively and correspondingly fixedly connected with two ends of the longitudinal rod 104; the lower ends of the front vertical diagonal rod 107 and the rear vertical diagonal rod 108 are respectively and correspondingly fixedly connected with the front cross rod 101 and the rear cross rod 102 through a node plate A2, the front diagonal rod 118 and the rear diagonal rod 118 of the lattice cross arm outside the recent 220kV double-circuit are respectively and correspondingly connected to the node plate A2, and the upper ends of the front vertical diagonal rod 107 and the rear vertical diagonal rod 108 are respectively and correspondingly and fixedly connected with the tower body main material. The upper layer outside cross arm shown in figure 5 is a conventional 220kV pole tower cross arm, can be used as the comparison of the upper layer inside cross arm, and the lower layer inside cross arm and the lower layer outside cross arm for the recent 220kV double circuit are also conventional pole tower cross arms, and the structure can refer to figure 5.
Referring to the attached figures 6-7, a wiring board B3 for 220kV wires is arranged at the end part of a middle-layer outer cross arm for a recent 220kV double-circuit, in addition, an extension part is arranged on a front cross rod 201 and a rear cross rod 202 of a main material of a plane under the cross arm, node plates B1 and B2 are arranged at the end part of the cross arm to be used as connecting pieces, and bolt holes for connecting 500kV jumper frame angle steel 4 are reserved on the extension part and the node plates. After boosting, referring to fig. 12 and 13, the 500kV jumper frame angle steel 4 is connected on the basis of the original extension parts and the node plates B1 and B2 through the node plates B5 and B6 and bolts. The extension part is additionally provided with a connecting rod 203, a front oblique connecting rod 204, a rear oblique connecting rod 205 and a wire hanging plate B4, so that the boosting rear wire hanging plates B3 and B4 are used as wire hanging plates for a long-term 500kV single circuit. The rod piece and the wire hanging plate B4 which are additionally arranged can be well installed in the near term construction, and can also be additionally arranged in the long term construction.
Similarly, referring to fig. 8-9, a near 220kV wire hanging plate C3 is arranged at the end of the near 220kV double-circuit middle-layer inner cross arm, a long-term 500kV single-circuit rod and a hanging plate C4 are arranged at the same time, and the boosted hanging plates C3 and C4 are used as long-term 500kV single-circuit hanging plates. The end parts of the middle-layer inner side cross arms also adopt extension parts, and node plates C1 and C2 and bolt holes for connecting the inner side jumper wire rack 5 are reserved.
Thus, when the short-term 220kV double-circuit angle tower is converted into the long-term 500kV single-circuit angle tower, the structure is changed as follows:
1) and dismantling the upper layer outer side cross arm, the lower layer inner side cross arm and the lower layer outer side cross arm.
2) And (3) removing the cross arms of the cells outside the cross arms at the inner side of the upper layer, reserving the cross arms of the cells in the inner region, namely reserving a front cross bar 101, a rear cross bar 102, a longitudinal bar 104 connecting the front cross bar and the rear cross bar, a front cross oblique bar 105, a rear cross oblique bar 103, a front vertical oblique bar 107 and a rear vertical oblique bar 108, a node board A2 and wire hanging boards A4 and A5 to form the 500kV upper cross arm shown in the attached drawings 10 and 11.
3) The 220kV middle layer outer side cross arm is additionally provided with a jumper frame 4 through node plates B1 and B2, the 220kV middle layer inner side cross arm is additionally provided with a jumper frame 5 through node plates C1 and C2 and is used for hanging a jumper string for 500kV to form a 500kV lower layer outer side cross arm shown in figures 12 and 13 and a 500kV lower layer inner side cross arm shown in figure 14, namely the 220kV double-loop middle layer cross arm becomes a 500kV single-loop lower layer cross arm.
4) The 220kV double-loop adopts 2-split 400mm 2-section leads which are all single hanging points, the 220kV upper phase inner side lead hanging plate adopts A3 (as shown in figure 3), the middle phase outer side lead hanging plate adopts B3, and the middle phase inner side lead hanging plate adopts C3; the 500kV 4-split 400mm 2-section lead is formed again through operations of doubling, lifting and the like. The 500kV wire hanging points are double, the upper wire hanging plate adopts A4 and A5, the lower outer wire hanging plate adopts B3 and B4, and the lower inner wire hanging plate adopts C3 and C4. Meanwhile, the ground wire of the 220kV line can also be directly used for the boosted 500kV line.
5) The vertical distance between the upper-layer cross arm and the middle-layer cross arm of the 220kV double-loop angle tower is set to be not less than 7m, the vertical distance between the lower-layer cross arm and the 220kV middle-layer cross arm is set to be not less than 6m, and the ground distance between the cross arm (the cross arm under 500 kV) and the ground can be more than 10.5m after the 220kV lower-layer cross arm is dismantled.
6) Gusset plate/hanging line board is symmetry around being, and the structure is unanimous, and consequently gusset plate/hanging line board adopts same reference numeral record around the same position.
The part of the utility model which is not described is the same as the prior art.
Claims (4)
1. The power transmission line corner tower based on near-far combination of a 220kV double loop and a 500kV single loop comprises a tower body, an upper layer cross arm, a middle layer cross arm and a lower layer cross arm, wherein each layer of cross arm comprises an inner side cross arm and an outer side cross arm, the tower body is used as a boundary, the inner side direction of the line corner is the inner side cross arm, and the outer side direction of the line corner is the outer side cross arm; the device is characterized in that the cross arm at the inner side of the upper layer comprises a long-term 500kV single-circuit inner cell cross arm and a short-term 220kV double-circuit outer cell cross arm, two wire hanging plates capable of hanging 500kV single-circuit double wires are arranged on the front side and the rear side of the long-term 500kV single-circuit inner cell cross arm, and a wire hanging plate capable of hanging 220kV double-circuit single wires is arranged on the front side and the rear side of the end part of the short-term 220kV double-circuit outer cell cross arm; the long-term 500kV single-circuit inner cell cross arm is detachably connected with the short-term 220kV double-circuit outer cell cross arm through a node plate A1 and a fastening bolt;
the upper layer outer side cross arm is an upper layer outer side cross arm for a recent 220kV double-circuit; the middle layer outer side cross arm and the middle layer inner side cross arm are used as a middle layer cross arm for 220kV double loops recently and used as a lower layer cross arm for 500kV single loops in a long term, and connecting pieces are arranged at the end parts of the middle layer outer side cross arm and the middle layer inner side cross arm and can be connected with jumper wire frame angle steel for 500kV single loops in the long term; the lower layer inner side cross arm and the lower layer outer side cross arm are both near 220kV double-circuit lower layer cross arms; the vertical distance between the upper layer cross arm and the middle layer cross arm is larger than 7 m.
2. The power transmission line corner tower based on 220kV double-circuit and 500kV single-circuit near-far combination according to claim 1, characterized in that the grid cross arm in the long-term 500kV single-circuit comprises a front cross rod, a rear cross rod, a longitudinal rod connecting the front cross rod and the rear cross rod, a front transverse oblique rod, a rear transverse oblique rod, a front vertical oblique rod and a rear vertical oblique rod; the uniform ends of the front cross rod and the rear cross rod are connected with a main material of the tower body, the other ends of the front cross rod and the rear cross rod are connected with a lattice cross arm outside a 220kV double-circuit zone in the near term and are suspended parts in the far term; the longitudinal rod is vertical to the front cross rod and the rear cross rod, and two ends of the longitudinal rod are fixedly connected with the two cross rods; the joints of the front cross rod and the rear cross rod with the main material of the tower body are respectively provided with a 500kV single-loop double-wire hanging plate; the joints of the two ends of the longitudinal rod are also respectively provided with a 500kV single-loop double-wire hanging plate;
the front transverse diagonal rod and the rear transverse diagonal rod form a horizontal V-shaped web member, the connecting end of the horizontal V-shaped web member is fixedly connected with the middle part of the main material of the tower body, and two free ends of the horizontal V-shaped web member are respectively and correspondingly fixedly connected with two ends of the longitudinal rod; the lower ends of the front vertical diagonal rod and the rear vertical diagonal rod are respectively and correspondingly fixedly connected with the front cross rod and the rear cross rod, and the upper ends of the front vertical diagonal rod and the rear vertical diagonal rod are respectively and correspondingly fixedly connected with the main tower body material.
3. The power transmission line corner tower based on near-far combination of a 220kV double circuit and a 500kV single circuit as claimed in claim 1, wherein the vertical distance between the middle layer cross arm and the lower layer cross arm of the recent 220kV double circuit is greater than 6 m.
4. The power transmission line turret based on near-far combination of a 220kV double-circuit and a 500kV single-circuit as claimed in claim 1, wherein a double-split conductor is adopted for the near-term 220kV double-circuit, and a 4-split conductor is adopted for the far-term 500kV single-circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022305711.3U CN213585090U (en) | 2020-10-16 | 2020-10-16 | Power transmission line corner tower based on near-far combination of 220kV double-loop and 500kV single-loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022305711.3U CN213585090U (en) | 2020-10-16 | 2020-10-16 | Power transmission line corner tower based on near-far combination of 220kV double-loop and 500kV single-loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213585090U true CN213585090U (en) | 2021-06-29 |
Family
ID=76525234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022305711.3U Active CN213585090U (en) | 2020-10-16 | 2020-10-16 | Power transmission line corner tower based on near-far combination of 220kV double-loop and 500kV single-loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213585090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016802A (en) * | 2021-11-12 | 2022-02-08 | 贵州电网有限责任公司 | Reinforcing and reforming method for bearing capacity of double-limb force-transferring hoisting iron tower component |
-
2020
- 2020-10-16 CN CN202022305711.3U patent/CN213585090U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016802A (en) * | 2021-11-12 | 2022-02-08 | 贵州电网有限责任公司 | Reinforcing and reforming method for bearing capacity of double-limb force-transferring hoisting iron tower component |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213585090U (en) | Power transmission line corner tower based on near-far combination of 220kV double-loop and 500kV single-loop | |
| CN202978006U (en) | Ultrahigh voltage intelligent substation medium-voltage side HGIS power distribution device | |
| CN201635465U (en) | Extra-high voltage electric transmission line terminal high tower | |
| CN207260730U (en) | A kind of double loop cable termination tower | |
| CN206917382U (en) | A kind of bamboo shape steel tower bracing means | |
| CN215443391U (en) | Transmission line and 5G communication sharing steel pipe pole | |
| CN206490303U (en) | A kind of 330kV power distribution equipments inlet-outlet line framework | |
| CN213175047U (en) | 220kV double-loop tangent tower based on 500kV long-range single loop | |
| CN205036145U (en) | Single loop becomes exhales high shaft tower | |
| CN210724132U (en) | High-altitude 500kV upper-resistance type double-I-shaped strut pipe cage type jumper string | |
| CN212453879U (en) | Double-loop T-joint steel pipe rod | |
| CN111411814A (en) | High-altitude extra-high voltage test terminal drainage tower | |
| CN203081021U (en) | Novel wine glass composite material tower | |
| CN207765918U (en) | The open airs 110kV GIS power distribution equipments place two returns one across outlet structure | |
| CN201771243U (en) | Multi-loop common-tower common-frame iron tower | |
| CN210918441U (en) | High-altitude extra-high voltage test terminal drainage tower | |
| CN205637794U (en) | Overhead line commutation steel pipe pole | |
| CN207183801U (en) | One kind uses new sail type power distribution equipment framework made of composite insulating material | |
| CN206195296U (en) | Medium voltage cable connecting device | |
| CN205104768U (en) | Roof height formula GIS straggly framework of being qualified for next round of competitions | |
| CN117937318A (en) | Power transmission line crossing steel frame and wire crossing arrangement method | |
| CN211405022U (en) | Busbar fixed knot constructs with adjustable prepackage type transformer substation | |
| CN211342030U (en) | Four-column double-oblique-beam layered framework of terminal station | |
| CN111852160A (en) | Double-loop T-joint steel pipe rod | |
| CN211736602U (en) | Dual-purpose tower for power transmission line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |