CN105390988B - A kind of extra high voltage network Equipotential live working device and its application method - Google Patents

Abstract

An equipotential live working device for ultra-high voltage transmission lines, including a drone and two insulating tackles. The insulating tackles are an upper insulating tackle and a lower insulating tackle. The pulley is set, the upper part of the shell is provided with an inverted hook body, and a hanging ring is installed on the upper part of the hook body; the drone is connected to the upper end of the insulating lanyard, and the lower end of the insulating lanyard is connected to the hanging ring of the insulating pulley, and the upper end of the insulating pulley is wound on the pulley The ladder stay rope is connected to the upper part of the ladder at the end of the ladder stay rope; the upper part of the ladder is provided with a ladder hook. In the present invention, it is possible to directly reach the position of the maintenance line for maintenance work without opening and moving from the tower pole, which saves a lot of physical strength; in the present invention, at least one person can complete the operation of the entire equipment and complete the maintenance work, saving manpower.

Description

Equipotential live working device for ultra-high voltage transmission lines and its application method

technical field

The invention belongs to the field of electric power maintenance equipment, and in particular relates to an equipotential live working device for an ultra-high voltage transmission line and a method for using the same.

Background technique

Live work is a method of repairing and testing high-voltage electrical equipment without power failure. According to the relationship between the human body and the charged body, it can be divided into: equipotential work, ground potential work and intermediate potential work. In the equipotential live work, the operator needs to climb the tower or climb the soft ladder and walk to the maintenance position for live work. The human body is in contact with the high-voltage live wire, which is dangerous and poses a great threat to the physical, mental and psychological quality of the workers. test.

At present, conventional equipotential live working methods for ultra-high voltage transmission lines include: "cross two sections and three" method, soft ladder method and swing method, but there are still many disadvantages: 1) If the maintenance location is near the middle of the line span and far away from the tower When using the main body, the operator needs to climb the tower or climb the soft ladder to the wire, and then live the wire to the working position, which greatly consumes the physical strength of the operator and affects the working time and efficiency; 2) Use the soft ladder method or swing method to perform equipotential live work 1 ground potential electrician and 4 ground electricians are required to cooperate, which is not conducive to the organization and implementation of the work; 3) In the live work on the narrow tower window pole tower, the requirements for the minimum safety distance of the combined gap are very strict harsh. In summary, in the equipotential live working of EHV transmission lines, a safer and simpler method of equipotential live working is urgently needed.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide an equipotential live working device for ultra-high voltage transmission lines and its use method.

In order to achieve the above object, the present invention is achieved through the following technical solutions:

An equipotential live working device for ultra-high voltage transmission lines, including a drone and two insulating tackles. The insulating tackles are an upper insulating tackle and a lower insulating tackle. The pulley is set, the upper part of the shell is provided with an inverted hook body, and a hanging ring is installed on the upper part of the hook body; the drone is connected to the upper end of the insulating lanyard, and the lower end of the insulating lanyard is connected to the hanging ring of the insulating pulley, and the upper end of the insulating pulley is wound on the pulley The ladder pull rope is connected to the upper part of the ladder at the end of the ladder pull rope; the upper part of the ladder is provided with a ladder hook.

In order to further realize the object of the present invention, the following technical solutions can also be adopted: the end of the ladder stay rope is connected to the hanging ring of the lower insulating tackle at the same time, a safety rope is wound on the lower insulating tackle, and a safety strap is installed at the end of the safety rope. Described ladder is soft ladder. The ladder stay rope is an insulating rope. The safety rope is an insulating rope.

A method for using an equipotential live working device for an ultra-high voltage transmission line, comprising the following steps: ①Ground preparation: wrap the pulley of the ladder around the pulley of the upper insulating tackle, and the safety rope around the pulley of the lower insulating tackle, and hang the The two ends of the rope are respectively connected to the UAV and the upper insulating block, and the lower insulating block is connected to the ladder; ② Operate the UAV to hover to the wire of the transmission line, and hang the hook body of the upper insulating block on the ③Pull the ladder rope to raise the ladder, so that the ladder hook at the upper end of the ladder hangs on the split wire on the outer side of the lower layer; ④The electrician wears a safety strap and fixes the end of the safety rope, and the electrician climbs along the ladder. Climb to the maintenance station for maintenance work.

The advantages of the present invention are: in the present invention, it is possible to directly reach the position of the maintenance line for maintenance work without opening and moving from the tower pole, which saves a lot of physical strength; in the present invention, at least one person can complete the operation of the entire equipment and complete the maintenance work, saving manpower . The invention is safe and convenient. The invention also has the advantages of simple and compact structure, low manufacturing cost and easy use.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention; Fig. 2 is a partial enlarged structural schematic diagram of I in Fig. 1 .

Reference signs: 1 unmanned aerial vehicle 2 insulating lanyard 3 upper insulating block 4 safety strap 5 lower insulating block 6 ladder hook 7 ladder pull rope 8 safety rope 9 ladder 10 hook body 11 hanging ring 12 shell 13 pulley.

Detailed ways

An equipotential live working device for ultra-high voltage transmission lines, as shown in Figure 1 and Figure 2, includes a drone 1 and two insulating tackles, the insulating tackles are respectively an upper insulating tackle 3 and a lower insulating tackle 5, and the insulating tackle is composed of a shell 12. The hook body 10, the pulley 13 and the hanging ring 11 are composed, the pulley 13 is set on the shell 12, the inverted hook body 10 is set on the upper part of the shell 12, and the hanging ring 11 is installed on the upper part of the hook body 10; the UAV 1 is connected with an insulating lanyard 2, the lower end of the insulating lanyard 2 is connected to the hanging ring 11 of the upper insulating tackle 3, and the pulley 13 of the upper insulating tackle 3 is wound with the ladder stay rope 7, and the end of the ladder stay rope 7 is connected to the top of the ladder 9; Ladder hook 6 is set on the top. In order to improve safety, the end of the ladder stay rope 7 is connected to the hanging ring 11 of the lower insulation tackle 5 at the same time, and the safety rope 8 is wound on the lower insulation tackle 5, and the safety strap 4 is installed at the end of the safety rope 8. Described ladder 9 is a soft ladder, and the soft ladder is light in weight, easy to fold, and easy to carry. Described ladder stay rope 7, safety rope 8 are insulating ropes.

The insulating lanyard 2 is a silk moisture-proof insulating rope with a nominal diameter of 6mm, a structure of 3x3 strands, and a linear density of 12±0.2g/m. UAV 1 is a DJIS1000 eight-rotor UAV with a mechanical gripper, and its maximum take-off load is 4kg, which can meet the requirements of carrying tools.

Ladder pull rope 7 and safety rope 8 are all made of silk moisture-proof insulating rope with a nominal diameter of 12mm, a structure of 4x4+1 strands, and a linear density of 93±1.0g/m to ensure sufficient load-bearing capacity and insulation strength.

Insulating block is in order to guarantee sufficient mechanical strength and insulation performance, and whole insulating block is more portable simultaneously, hook body 10 and hanging ring 11 are made of aluminum alloy material, and the material of shell 12 and pulley 13 is insulating epoxy resin. According to the actual situation, conventional EHV 500kV transmission circuit conductors can be divided into three types of overhead line transmission conductors, LGJ-630/45, LGJ-300/40 and LGJ-400/35, with diameters of 23.04mm, 26.82mm and 33.60 mm, the hook body 10 of the insulated tackle is designed to be a large opening hook with horns, and the diameter of the opening is 40mm. At the same time, a concave inlay groove is established in the hook body 10, so that the suspension hook can hang on the phase-split conductor and will not come out. The guide rope passing through the insulating block is a silk moisture-proof insulating rope with a nominal diameter of 6mm, a structure of 3x3 strands, and a linear density of 12±0.2g/m. The total weight of the whole insulating tackle and the 40-meter guide rope is about 2kg, which is convenient for the carrying and operation of the UAV 1.

A method for using an equipotential live working device for an ultra-high voltage transmission line, comprising the following steps: ①Ground preparation: bypass the pulley 13 of the upper insulating block 3 with the ladder pull rope 7, and bypass the pulley 13 of the lower insulating block 5 with the safety rope 8 The pulley 13 connects the two ends of the insulating lanyard 2 to the drone 1 and the upper insulating tackle 3 respectively, and the lower insulating tackle 5 to the ladder 9; The UAV 1 hangs the hook body 10 of the upper insulation block 3 on the phase-split wire on the outer side of the upper layer; ③ Pull the ladder pull rope 7 to raise the ladder 9, so that the ladder hook 6 at the upper end of the ladder 9 hangs on the phase-split wire outside the lower layer ④ The electrician wears the safety strap 4, fixes the end of the safety rope 8, and the electrician climbs along the ladder 9 to the inspection station for inspection work.

The technical solutions of the present invention are not limited within the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all known technologies.

Claims (2)

1. An equipotential live working device for ultra-high voltage transmission lines, characterized in that: it includes a drone (1) and two insulating tackles, the insulating tackles are respectively the upper insulating tackle (3) and the lower insulating tackle (5), and the insulating The tackle is made up of a casing (12), a hook body (10), a pulley (13) and a hanging ring (11), the casing (12) is provided with a pulley (13), and the upper part of the casing (12) is provided with an inverted hook body (10) , the upper part of the hook body (10) is equipped with a hanging ring (11); the drone (1) is connected to the upper end of the insulating lanyard (2), and the lower end of the insulating lanyard (2) is connected to the hanging ring of the insulating tackle (3) ( 11), the pulley (13) of the upper insulating block (3) is wound with the ladder stay rope (7), and the end of the ladder stay rope (7) is connected to the upper part of the ladder (9); the upper part of the ladder (9) is provided with a ladder hook ( 6); the end of the ladder pull rope (7) is connected to the hanging ring (11) of the lower insulating block (5) at the same time, and the safety rope (8) is wound on the lower insulating block (5), and the safety rope (8) The safety strap (4) is installed at the end, the ladder (9) is a soft ladder, the ladder pull rope (7) is an insulating rope, and the safety rope (8) is an insulating rope; The hook has a diameter of 40mm at the opening, and a concave inlay groove is established in the hook body (10) simultaneously, so that the suspension hook can hang on the split wire and can not come out. 2. A method for using an equipotential live working device for ultra-high voltage transmission lines according to claim 1, characterized in that it includes the following steps: ① ground preparation: the ladder pull rope (7) bypasses the upper insulating tackle The pulley (13) and safety rope (8) of (3) go around the pulley (13) of the lower insulating tackle (5), and connect the two ends of the insulating lanyard (2) to the UAV (1) and the upper insulating tackle respectively. (3) Connection, the lower insulating block (5) is connected with the ladder (9); ② Operate the drone (1) to hover to the wire of the transmission line, and move the upper insulating block (3) by moving the drone (1) The hook body (10) of the upper layer is hung on the outer phase split wire of the upper layer; ③ Pull the ladder rope (7) to raise the ladder (9), so that the ladder hook (6) at the upper end of the ladder (9) is hung on the outer phase split wire of the lower layer ④The electrician wears the safety strap (4), fixes the end of the safety rope (8), and the electrician climbs up the ladder (9) to the maintenance station for maintenance work.