CN101546894B - Method for replacing 220KV steel pipe tower composite insulator electrifiedly - Google Patents

Method for replacing 220KV steel pipe tower composite insulator electrifiedly Download PDF

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Publication number
CN101546894B
CN101546894B CN 200910031465 CN200910031465A CN101546894B CN 101546894 B CN101546894 B CN 101546894B CN 200910031465 CN200910031465 CN 200910031465 CN 200910031465 A CN200910031465 A CN 200910031465A CN 101546894 B CN101546894 B CN 101546894B
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CN
China
Prior art keywords
tower
insulation
electrician
leading screw
synthetic insulator
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Application number
CN 200910031465
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Chinese (zh)
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CN101546894A (en
Inventor
王建国
童维占
邢军
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江苏省电力公司徐州供电公司
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Priority to CN 200910031465 priority Critical patent/CN101546894B/en
Publication of CN101546894A publication Critical patent/CN101546894A/en
Application granted granted Critical
Publication of CN101546894B publication Critical patent/CN101546894B/en

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Abstract

The invention discloses a method for replacing 220KV transmission line steel pipe tower composite insulators electrifiedly, belonging to the technical field of electricity and adopting a set of hoisting tool and auxiliary means. The hoisting tool comprises a clamping apparatus, a leading screw, an insulation voulge and a pin removal used for fixing a cross arm and the auxiliary means comprise an insulation rope, a reserve protection rope, and the like. The method performs live work by adopting the novel clamping apparatus to take root on the cross arm and single suspension centre. The invention has the advantages that the problem that the working space in a steel pipe tower is small and the problem that no place is available to take root on the steel pipe tower are solved, only two operators are needed on the steel pipe tower, and the clamping apparatus can be fixed well and is easy and convenient to operate.

Description

The method of charged for replacement 220KV steel tube tower synthetic insulator

Technical field

The present invention relates to a kind of method of charged for replacement 220KV ultra-high-tension power transmission line steel tube tower synthetic insulator.Belong to technical field of electricity.

Background technology

Along with the continuous reinforcement of electricity need load, 220KV transformer station occurs in each urban district, big city in succession.For saving the city proper land used, steel tube tower is all adopted in the outlet of 220KV transformer station in the urban district.In order to save line channel, often adopt on the steel tube tower simultaneously with the multiloop mode of tower.Working space is original just too narrow on the steel tube tower, and these have brought inconvenience all for the operation of steel tube tower line maintenance.

The ultra-high-tension power transmission line synthetic insulator is suspended on the electric power line pole tower, and cross-arm, lead by bulb, bowl a synthetic insulator and steel tube tower link, and synthetic insulator has very high electric and mechanical strength, has guaranteed the reliability service of transmission line.Owing to reasons such as thunderbolt, pollution flashover, deteriorations, need change at any time in the running.For not because of changing insulator with line outage, just need on ultra-high-tension power transmission line, carry out live line working, the method of present charged for replacement insulator is: directly contacted high-voltage conducting wires or carried out operation by means of insulating tool by the workman, the composite insulator replacing of deterioration, must use a kind of intermediate insulation, two has the special mould clamp of tightening device, purpose is that wire tension is transferred on the lifting tool, makes synthetic insulator become relaxed state from tension (because of some tons weight of suspension lead makes insulator string be in tensioned state).Because steel tube tower is different with conventional Tata type structure, cause on the cross-arm lifting tool to take root, while steel tube tower cross-arm is too narrow, only limits one man operation on the tower, and a people assists, thereby can't finish the replacing operation.

Summary of the invention

For solving the problems of the technologies described above, the invention provides a kind of method of charged for replacement 220KV steel tube tower synthetic insulator, this method is to adopt novel jig to take root, adopt single suspension centre to carry out live line working on cross-arm.Solved a difficult problem of taking root nowhere on the steel tube tower.

The present invention realizes with following technical scheme: a kind of method of charged for replacement 220KV steel tube tower synthetic insulator, and the instrument that is adopted has: lifting tool one cover: comprise the cross-arm holding clamp, tighten up laborsaving leading screw, insulation spear with hooked sickle and split-pin device; Aid: insulation ropes and backup protection rope etc.

Concrete replacing method step is as follows:

1, enter the cross-arm side: operation electrician and Ta go up auxiliary electrician and enter the cross-arm side successively on the tower;

2, lifting, erecting tools: the ground electrician transmits rope by insulation instrument is delivered to the cross-arm side successively, and auxiliary electrician passs the operation electrician one by one with instrument on the tower, carries out the installation of instrument by the operation electrician; The operation electrician passes link plate with jig earlier, and the jig lower end penetrates bolt, then leading screw is penetrated in the leading screw installing hole of jig, connects the insulation spear with hooked sickle subsequently, and the leading screw lower end connects with screw;

4, tighten up leading screw: the operation electrician waits to insulate and begins to tighten up leading screw after lead is hooked in two insulation of spear with hooked sickle, and the loading on the synthetic insulator to be replaced is transferred on a whole set of lifting tool;

5, pluck screw: the operation electrician treats to begin after leading screw tightens up with split-pin device the spring catch at bulb place, synthetic insulator lower end to be extracted on the tower, and bulb is separated with the bowl head; Then the operation electrician comes the pull-up of synthetic insulator lower end with the insulation rope on the tower, and extracts being connected of upper end and link plate;

6, fall old synthetic insulator, lift by crane new synthetic insulator: the ground staff transmits rope by insulation old synthetic insulator is unclasped ground, new synthetic insulator is worked winching to the cross-arm place;

7, new synthetic insulator is installed: the operation electrician links the upper end and the link plate place of new synthetic insulator earlier on the tower, then by ball socket adjuster the bowl head is set upright, and makes synthetic insulator lower end bulb enter a bowl head, with split-pin device spring catch is packed into subsequently;

8, remove power tool: the operation electrician removes power tool successively on the tower, and auxiliary electrician transmits rope with instrument by insulation and delivers to ground on the tower.

The invention has the beneficial effects as follows: (1) has overcome the narrow and small problem of steel tube tower working space, only needs two operation personnel operation on the tower; (2) solved a difficult problem of taking root nowhere on the steel tube tower, jig is fixed well, and is easy and simple to handle.

Description of drawings

The present invention is described in more detail below in conjunction with drawings and Examples:

Fig. 1 is the instrument complete layout;

Fig. 2 is the jig front view;

Fig. 3 is a vertical view.

Among the figure: 1, steel tube tower cross-arm, 2, link plate, 3, the cross-arm holding clamp, 3-1, leading screw installing hole, 3-2, bolt hole, 3-3, assemblage gap, 4, bolt, 5, leading screw, 6, synthetic insulator, 7, the insulation spear with hooked sickle, 8, bulb, 9, the bowl head, 10, lead, 11, screw rod and U type link.

Embodiment

Shown in Fig. 1 instrument complete layout, the instrument of use has lifting tool one to be with cross-arm holding clamp 3, leading screw 5, insulation spear with hooked sickle 7 and split-pin device; Aid has insulation ropes and backup protection rope etc.

As shown in Figures 2 and 3, the fixing jig integral body of cross-arm is the L shaped of bending, and a leading screw installing hole 3-1 is arranged in the termination of its horizontal position, assemblage gap 3-3 is arranged and pass the bolt hole 3-2 of assemblage gap at the bending part of perk.

At first, operating personnel pack into link plate 2 with the assemblage gap 3-3 of cross-arm holding clamp 3 on the tower, and the corner of cross-arm holding clamp 3 rests on the screw rod and U type link 11 that connects with link plate 2, then bolt 4 is installed.Again leading screw 5 is passed the leading screw installing hole 3-1 in the jig, at last Bolt Connection is passed through together with the upper end of insulation spear with hooked sickle 7 in the lower end of leading screw 5.After the intact dress of instrument finishes, two hooks of insulation spear with hooked sickle 7 lower ends are hooked binary fission lead 10, slowly lift by crane leading screw 5 then, the loading that synthetic insulator 6 bears is transferred on the insulation spear with hooked sickle 7.After insulator 6 to be synthesized no longer bears loading, pull up the spring catch of bulb 8 and bowl 9 with split-pin device, and rock synthetic insulator 6, bulb 8 is deviate from from bowl 9.Extract connecting between synthetic insulator and link plate subsequently, promptly changed old synthetic insulator.The new composite insulation period of the day from 11 p.m. to 1 a.m is installed, connect between insulator to be synthesized and link plate good after, with bowl 9 centralizer bowl 9 is set upright, bulb 8 is entered in the bowl 9, then with split-pin device with spring catch pack into bulb 8 and bowls 9, promptly finished whole replacing operation.

Claims (1)

1. the method for a charged for replacement 220KV steel tube tower synthetic insulator is characterized in that the instrument that is adopted has: lifting tool one cover: comprise the cross-arm fixedly jig of usefulness (3), leading screw (5), insulation spear with hooked sickle (7) and split-pin device; Aid: insulation ropes and backup protection rope; The jig integral body that is adopted is the L shaped of bending, and a leading screw installing hole (3-1) is arranged in the termination of its horizontal position, assemblage gap (3-3) is arranged and pass the bolt hole (3-2) of assemblage gap at the bending part of perk;
Concrete replacing method is:
1) enter the cross-arm side: operation electrician and Ta go up auxiliary electrician and enter the cross-arm side successively on the tower;
2) lifting, erecting tools: the ground electrician delivers to the cross-arm side by insulation ropes successively with instrument, and auxiliary electrician passs the operation electrician one by one with instrument on the tower, carries out the installation of instrument by the operation electrician; The operation electrician passes link plate with jig earlier, and the jig lower end penetrates bolt, then leading screw is penetrated in the leading screw installing hole of jig, at last Bolt Connection is passed through together with the upper end of insulation spear with hooked sickle (7) in the lower end of leading screw (5);
4) tighten up leading screw: the operation electrician begins to tighten up leading screw after hooking lead with two insulation of insulation spear with hooked sickle, and the loading on the synthetic insulator to be replaced is transferred on a whole set of lifting tool;
5) pluck screw: the operation electrician treats to begin after leading screw tightens up with split-pin device the spring catch at bulb place, synthetic insulator lower end to be extracted on the tower, and bulb is separated with the bowl head; Then the operation electrician comes the pull-up of synthetic insulator lower end with insulation ropes on the tower, and extracts being connected of upper end and link plate;
6) fall old synthetic insulator, lift by crane new synthetic insulator: the ground staff unclasps ground by insulation ropes with old synthetic insulator, new synthetic insulator is worked winching to the cross-arm place;
7) new synthetic insulator is installed: the operation electrician links the upper end and the link plate place of new synthetic insulator earlier on the tower, then by ball socket adjuster the bowl head is set upright, and makes synthetic insulator lower end bulb enter a bowl head, with split-pin device spring catch is packed into subsequently;
8) remove power tool: the operation electrician removes power tool successively on the tower, and auxiliary electrician delivers to ground with instrument by insulation ropes on the tower.
CN 200910031465 2009-04-29 2009-04-29 Method for replacing 220KV steel pipe tower composite insulator electrifiedly CN101546894B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200910031465 CN101546894B (en) 2009-04-29 2009-04-29 Method for replacing 220KV steel pipe tower composite insulator electrifiedly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200910031465 CN101546894B (en) 2009-04-29 2009-04-29 Method for replacing 220KV steel pipe tower composite insulator electrifiedly

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CN101546894A CN101546894A (en) 2009-09-30
CN101546894B true CN101546894B (en) 2011-03-23

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101916972B (en) * 2010-03-23 2012-11-21 福建省电力有限公司厦门电业局 Earth potential live replacing device for tangent tower closed type insulator string on attachment plate
CN101916971B (en) * 2010-03-23 2012-09-26 福建省电力有限公司厦门电业局 Earth potential live replacing device for tangent tower inverted insulator string on attachment plate
CN102340114A (en) * 2011-09-23 2012-02-01 四川省电力公司达州电业局 High-voltage power transmission line lifter for live working
CN104600629A (en) * 2015-02-12 2015-05-06 中国南方电网有限责任公司超高压输电公司百色局 Compact-circuit six-bundled conductor linkage plate fixture and application thereof
CN105098658B (en) * 2015-09-18 2017-07-14 国网上海市电力公司 A kind of insulator exchange apparatus
CN108448480A (en) * 2018-03-30 2018-08-24 江西电力职业技术学院 Overhead power transmission line pole tower insulator locking equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85204196U (en) * 1985-09-28 1986-06-11 鞍山电业局 Clamps for change straight-line whole serial insulators on live wire work
CN2219555Y (en) * 1994-12-08 1996-02-07 都匀市供电局 Universal rear gripper for hot-line working of 35-220KV electric transmission line
CN101022212A (en) * 2007-03-23 2007-08-22 上海市电力公司超高压输变电公司 Live line replacing method high voltage transmission line strain insulator-string and device
CN101174761A (en) * 2007-10-30 2008-05-07 重庆市电力公司超高压局 High-voltage power line tension insulator string forward spin live-wire altering method and two yoke plate device
CN101252263A (en) * 2008-04-02 2008-08-27 云南电网公司大理供电局 Method for electrified replacing 500 kV line L string insulator
CN201118147Y (en) * 2007-10-30 2008-09-17 重庆市电力公司超高压局 Device for electrified replacing for high tension power line insulator chain
CN201219185Y (en) * 2008-06-06 2009-04-08 宁夏电力公司银川供电局 Special tool for replacing insulator string

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85204196U (en) * 1985-09-28 1986-06-11 鞍山电业局 Clamps for change straight-line whole serial insulators on live wire work
CN2219555Y (en) * 1994-12-08 1996-02-07 都匀市供电局 Universal rear gripper for hot-line working of 35-220KV electric transmission line
CN101022212A (en) * 2007-03-23 2007-08-22 上海市电力公司超高压输变电公司 Live line replacing method high voltage transmission line strain insulator-string and device
CN101174761A (en) * 2007-10-30 2008-05-07 重庆市电力公司超高压局 High-voltage power line tension insulator string forward spin live-wire altering method and two yoke plate device
CN201118147Y (en) * 2007-10-30 2008-09-17 重庆市电力公司超高压局 Device for electrified replacing for high tension power line insulator chain
CN101252263A (en) * 2008-04-02 2008-08-27 云南电网公司大理供电局 Method for electrified replacing 500 kV line L string insulator
CN201219185Y (en) * 2008-06-06 2009-04-08 宁夏电力公司银川供电局 Special tool for replacing insulator string

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Effective date of registration: 20121029

Address after: 221005 No. 20 Jiefang North Road, Jiangsu, Xuzhou

Patentee after: Xuzhou Power Supply Company of Jiangsu Electric Power Company

Patentee after: Jiangsu Electric Power Company

Patentee after: State Grid Corporation of China

Address before: 221005 No. 20 Jiefang North Road, Jiangsu, Xuzhou

Patentee before: Xuzhou Power Supply Company of Jiangsu Electric Power Company

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Owner name: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP

Effective date: 20121029

C41 Transfer of patent application or patent right or utility model