Emergency repair tower special for extra-high voltage direct current line

Abstract

The utility model belongs to the technical field of power supply line first-aid repair, and particularly relates to a first-aid repair tower special for an extra-high voltage direct-current line, which comprises a stand column, a ground wire strut beam arranged at the top end of the stand column, lattice type composite cross arms arranged on the left side and the right side of the stand column, and the lattice type composite cross arms are hinged with the stand column. The outer side of the lattice type composite cross arm is connected with a plurality of groups of cross arm insulating suspenders, the top ends of the cross arm insulating suspenders are connected with the top end of the stand column, the bottom of the ground wire supporting beam is symmetrically connected with two groups of ground wire supporting beam inclined struts, one ends of the ground wire supporting beam inclined struts are connected with the ground wire supporting beam, and the other ends of the ground wire supporting beam inclined struts are connected with the stand column. A straight pole or a tension pole can be conveniently formed by changing the combination, the device adapts to different line types and is applied to straight lines and tension lines, the single-column design can be suitable for various terrains such as mountainous regions and hills, the occupied area is small, connection is convenient, quick repair of + / -800kV direct-current power transmission lines can be achieved on the whole, the power failure time is shortened, and economic losses caused by power failure are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency repair of power supply lines, in particular to a special emergency repair tower for ultra-high voltage direct current lines. Background Art

[0002] In recent years, the country has vigorously developed ±800kV UHV DC transmission technology. ±800kV UHV DC transmission lines have complex geological structures and changeable meteorological conditions along the lines, which are prone to natural disasters such as freezing, typhoons, landslides and mud-rock flows. These natural disasters may cause accidents such as tower collapse and line breakage of transmission lines. Once a tower collapse occurs, it takes a long time to repair it according to the original design standards. Therefore, a special repair tower for UHV DC lines is proposed. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] Therefore, the purpose of the utility model is to provide a special emergency repair tower for ultra-high voltage DC lines, which adopts a lattice-type composite cross arm and a column combination method, so that a straight pole or a tension pole can be formed by changing the combination, and it can adapt to different line types and be applied to straight lines and tension lines. The single-column design can be applied to various terrains such as mountains and hills, with a small footprint and convenient connection. The overall structure can realize rapid emergency repair of ±800kV DC transmission lines, shorten power outage time, and reduce economic losses caused by power outages.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] A special emergency repair tower for ultra-high voltage direct current lines, comprising:

[0007] As a column connecting the base frame;

[0008] A ground wire support beam is installed on the top of the column, and lattice-type composite cross arms are arranged on the left and right sides of the column. The lattice-type composite cross arms are hinged to the column, and multiple groups of cross arm insulating hangers are connected to the outside of the lattice-type composite cross arms, and the top of the cross arm insulating hanger is connected to the top of the column.

[0009] As an optimal solution of a special emergency repair tower for ultra-high voltage DC lines described in the utility model, in order to increase the connection stability between the ground wire support beam and the column, two groups of ground wire support beam diagonal braces are symmetrically connected to the bottom of the ground wire support beam, one end of the ground wire support beam diagonal brace is connected to the ground wire support beam, and the other end is connected to the column.

[0010] As a preferred solution of the special emergency repair tower for UHV DC lines described in the utility model, in order to increase the connection stability of the columns, the four end corners of the columns are connected with guy wires, and the bottom ends of the guy wires are connected to ground anchors.

[0011] As a preferred solution of a special emergency repair tower for ultra-high voltage DC lines described in the utility model, the columns cooperate with the ground wire support beam and the lattice-type composite cross arm to form a dry-shaped pole tower, and the top of the columns is fixedly connected to the ground wire support beam.

[0012] As a preferred solution of a special emergency repair tower for UHV DC lines described in the utility model, wherein: an insulating pull rod is connected to the middle of the lattice composite cross arm, and the insulating pull rod adopts a double-row structure to suspend the lattice composite cross arm.

[0013] As an optimal solution for a special emergency repair tower for ultra-high voltage DC lines described in the utility model, in order to further increase the stability of the column connection, a pull wire is connected to the insulating pull rod, the bottom end of the pull wire is connected to the ground anchor, and the top end of the pull wire passes through the insulating pull rod and is connected to the ground wire support beam.

[0014] As a preferred solution of a special emergency repair tower for ultra-high voltage DC lines described in the utility model, the top of the ground wire support beam is connected to a wire drawing plate, and wire drawing hanging plates for limiting the position of the wire drawing are arranged at both left and right ends of the wire drawing plate.

[0015] As a preferred solution of the special emergency repair tower for UHV DC lines described in the utility model, the bottom of the column is connected to a hinged support, and is connected to the external support plate through the hinged support.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The lattice composite crossarm and column are combined to form a straight pole or a tension pole by changing the combination, which can adapt to different line types and be applied to straight lines and tension lines;

[0018] 2. The single-column design is suitable for various terrains such as mountains and hills. It occupies a small area and is easy to connect. It can realize the rapid repair of ±800kV DC transmission lines, shorten the power outage time, and reduce the economic losses caused by power outages;

[0019] 3. The periphery of the column is fixed to the ground through the coordination of wire anchors, which can effectively improve the stability of the column connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 For this utility model Figure 1 Schematic diagram of some structures.

[0023] In the figure: 1 column, 2 ground wire support beam, 20 wire board, 22 wire hanging plate, 3 ground wire support beam diagonal brace, 4 lattice type composite cross arm, 5 cross arm insulating hanger rod, 6 insulating tie rod, 7 wire, 8 ground anchor. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] The utility model provides a special repair tower for UHV DC lines. Figure 1 , including, a column 1 as a connection base frame;

[0029] The top of the column 1 is threadedly connected to the ground wire support beam 2 through a locking bolt, and lattice composite cross arms 4 are arranged on both sides of the column 1. The lattice composite cross arms 4 are hinged to the column 1, and the outer side of the lattice composite cross arms 4 is connected to multiple groups of cross arm insulation hangers 5 through locking bolts, and the top of the cross arm insulation hanger 5 is threadedly connected to the top of the column 1;

[0030] The top of the ground wire support beam 2 is connected to a wire drawing plate 20, and both ends of the wire drawing plate 20 are provided with wire drawing hanging plates 22 for limiting the position of the wire 7;

[0031] The column 1 cooperates with the ground wire support beam 2 and the lattice composite cross arm 4 to form a stem-shaped tower. The top of the column 1 is screwed with the ground wire support beam 2. The middle of the lattice composite cross arm 4 is connected with an insulating pull rod 6. The insulating pull rod 6 adopts a double-row structure to lift the lattice composite cross arm 4. The emergency repair tower can adapt to different line types through combination, and can be applied to straight lines and tension lines. The single-column design can be applied to various terrains such as mountains and hills. It occupies a small area and is easy to connect. The overall repair of ±800kV DC transmission lines can be realized quickly, shortening the power outage time and reducing the economic losses caused by power outages.

[0032] The lattice composite cross arm 4 is composed of 6 composite insulation sections connected by bolts, and a single section is composed of 4 foam-filled insulation tubes with silicone rubber sheds injected on the outer surface, and both ends of the insulation tube are equipped with round tube steel flanges, and the 4 insulation tubes are connected by aluminum alloy angle aluminum to form a composite insulation section;

[0033] Furthermore, in order to increase the connection stability between the ground wire support beam 2 and the column 1, two sets of ground wire support beam diagonal braces 3 are symmetrically threaded at the bottom of the ground wire support beam 2, one end of the ground wire support beam diagonal brace 3 is screwed to the ground wire support beam 2, and the other end is screwed to the column 1;

[0034] Furthermore, in order to increase the connection stability of the column, the four corners of the column 1 are connected with a tension wire 7, and the bottom end of the tension wire 7 is connected to the ground anchor 8;

[0035] Furthermore, in order to further improve the connection stability of the column 1, the bottom end of the insulating pull rod 6 is connected to the pull wire 7 through a locking bolt, and the end of the pull wire 7 is threadedly connected to the ground anchor 8 (the bottom end of the pull wire is connected to the ground anchor, and the top end of the pull wire passes through the insulating pull rod and is connected to the ground wire support beam), and a pull wire system is formed. The straight tower is provided with two layers of pull wires, which are respectively arranged at the top of the column 1 and the middle of the column. The tension tower is provided with three layers of pull wires, the upper layer of pull wires is arranged at the top of the column 1, the middle layer of pull wires is arranged in the middle of the column 1 at the junction of the column 1 and the lattice composite cross arm 4, and the lower layer of pull wires is arranged in the middle of the column 1.

[0036] Working principle: When in use, the utility model adopts a lattice-type composite cross arm 4 combined with a column 1, which is convenient to form a straight pole or a tension pole by changing the combination, adapting to different line types, and applied to straight lines and tension lines. The single-column design can be applied to various terrains such as mountains and hills, with a small footprint and convenient connection. The overall ±800kV DC transmission line can be quickly repaired, shortening the power outage time and reducing the economic losses caused by the power outage. In addition, the periphery of the column 1 is fixed to the ground through the cooperation of the guy wire 7 and the anchor 8, which can effectively improve the connection stability of the column 1.

[0037] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A special repair tower for ultra-high voltage DC lines, characterized in that: include: A column (1) for connecting the base frame; A ground wire support beam (2) is installed at the top of the column (1), and lattice composite cross arms (4) are arranged on both sides of the column (1). The lattice composite cross arms (4) are hinged to the column (1), and multiple groups of cross arm insulating suspension rods (5) are connected to the outside of the lattice composite cross arms (4), and the top of the cross arm insulating suspension rod (5) is connected to the top of the column (1).

2. The special emergency repair tower for UHV DC lines according to claim 1, characterized in that: In order to increase the connection stability between the ground wire support beam (2) and the column (1), two groups of ground wire support beam diagonal braces (3) are symmetrically connected to the bottom of the ground wire support beam (2), one end of the ground wire support beam diagonal brace (3) is connected to the ground wire support beam (2), and the other end is connected to the column (1).

3. The special emergency repair tower for UHV DC lines according to claim 1, characterized in that: In order to increase the connection stability of the column, the four end corners of the column (1) are connected with a pull wire (7), and the bottom end of the pull wire (7) is connected to a ground anchor (8).

4. The special emergency repair tower for UHV DC lines according to claim 1, characterized in that: The upright column (1) cooperates with the ground wire support beam (2) and the lattice-type composite cross arm (4) to form a stem-shaped pole tower, and the top of the upright column (1) is fixedly connected to the ground wire support beam (2).

5. The special emergency repair tower for UHV DC lines according to claim 1, characterized in that: An insulating pull rod (6) is connected to the middle of the lattice-type composite cross arm (4), and the insulating pull rod (6) adopts a double-row structure to suspend the lattice-type composite cross arm (4).

6. The special emergency repair tower for UHV DC line according to claim 5, characterized in that: In order to further increase the connection stability of the column (1), the insulating pull rod (6) is connected to a pull wire (7), the bottom end of the pull wire (7) is connected to a ground anchor (8), and the top end of the pull wire (7) passes through the insulating pull rod (6) and is connected to the ground wire support beam (2).

7. The special emergency repair tower for UHV DC lines according to claim 5, characterized in that: The top of the ground wire support beam (2) is connected to a wire pulling plate (20), and both left and right ends of the wire pulling plate (20) are provided with wire pulling hanging plates (22) for limiting the position of the wire pulling (7).

8. The special emergency repair tower for UHV DC lines according to claim 1, characterized in that: The bottom of the column (1) is connected to a hinged support and is connected to an external support plate via the hinged support.

Images