CN102882153A - Multi-return tower middle-phase insulator string replacement method for electrified replacement circuit - Google Patents
Multi-return tower middle-phase insulator string replacement method for electrified replacement circuit Download PDFInfo
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- CN102882153A CN102882153A CN2012103166245A CN201210316624A CN102882153A CN 102882153 A CN102882153 A CN 102882153A CN 2012103166245 A CN2012103166245 A CN 2012103166245A CN 201210316624 A CN201210316624 A CN 201210316624A CN 102882153 A CN102882153 A CN 102882153A
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Abstract
The invention discloses a multi-return tower middle-phase insulator string replacement method for an electrified replacement circuit. According to the method, a pulley clamp is adopted to replace the insulator string so as to realize indirect operation installation, stringing operation is performed on the ground rather than on the tower, clearance operation workload is greatly reduced, the operational efficiency is improved, and the labor intensity is reduced.
Description
Technical field
The present invention relates to a kind of two phase replacing insulator string method in the phase replacing insulator string, particularly many times towers of a kind of charged for replacement circuit of returning in the towers.
Background technology
Because the requisition of circuit corridor is more and more difficult, power transmission sequence adopts double loop or multi-circuits transmission lines on single tower shaft tower in a large number, adopt vertical arrangement such as 110KV circuit double loop tangent tower wire, middle phase cross-arm is generally 3.5 meters with upper phase cross-arm, behind deduction insulator string length and the middle mutually cross-arm height, middle phase cross-arm and upper conductor distance only have about 1.2 meters, phase insulator during if Live line maintenance method is changed routinely, personnel need enter the operation of middle phase cross arm end, 1.2 safety requirements can't be satisfied in the gap of rice, can only power failure operation, this has reduced power supply reliability simultaneously just so that amount of power supply is subjected to a large amount of losses.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, and provide a kind of applicable to phase replacing insulator string method in the two many times towers of charged for replacement circuit that return phase insulator in towers or the many times towers of earth potential live replacing circuit.
Phase replacing insulator string method in many times towers of a kind of charged for replacement circuit, its concrete steps are as follows: (1) at first forms assembly pulley with pulley jig and insulating cord, described pulley jig specifically includes jig and two s' running block, described jig is wing-shaped structure, be provided with the open seam of the snapped in cross-arm of linking up the jig front-back in the middle part of wing-shaped structure, reach the square groove vertical with open seam that extends along two flank directions of wing-shaped structure, the notch of this square groove is positioned at the jig lower surface, lower surface at jig two flanks is respectively arranged with the fixed pulley group, each fixed pulley group has more than one fixed pulley, be provided with the hangers be used to the jig of slinging in the upper end of jig, the fixed pulley number of the fixed pulley group on the pulley number on each running block and jig one flank is complementary, and is provided with the hook be used to the wire of slinging in the bottom of each running block;
The operating personnel steps on the supreme cross arm end of tower on (2) one towers, and the place hangs up properly purchase fall at upper cross-arm, and Ground Operation personnel thus purchase fall begin to hang and rise assembly pulley;
(3) operating personnel steps on tower to middle cross-arm root and with action bars the pulley jig is installed on the terminal insulator string suspension point of middle cross-arm place on another tower, jig middle aperture slots and square groove closely are fixed on the cross-arm, and the hook of two running blocks is hung into wire;
(4) the Ground Operation personnel tighten up insulating cord by the tail end of assembly pulley insulating cord, make the insulator load transfer to assembly pulley;
(5) take off the side of wire was spring catch with action bars, throw off insulator;
(6) load onto good insulator by reverse procedure, lay down the operation Work tool, personnel withdraw.
Above method mainly is applicable to change synthetic insulator, in order to be listed as good replacing porcelain bottle insulators, the present invention also increases following steps between step 5 is with 6: by two operating personnels to middle phase cross-arm root place, cooperate with action bars the self-control suspension centre that is loaded on the purchase fall is fixed due to the synthetic insulator upper end, or the first of porcelain bottle insulators, adjust the insulator position with the insulator adjuster, take off the cross-arm side spring catch, utilize insulator suspension centre card balanced hoisting insulator string, throw off the bulb of connecting insulator, insulator is put to ground.
Be provided with for the hangers that hangs the starter pulley group at running block.
Also be provided with two fixed pulley on the jig between the two fixed pulley groups of jig, two fixed pulleys are divided on the flank of open seam both sides.
Set up a fixed pulley between two fixed pulley groups of jig, changing the porcelain insulator period of the day from 11 p.m. to 1 a.m, because porcelain bottle insulators weight is very heavy, therefore available rope is sling porcelain vase by this fixed pulley, plays the effect of weight reduction.
The hood type structure of described suspension centre card for being made of two arc-like sheets is provided with the convenient hanger that this suspension centre card is upwards sling at two arc-like sheets, also is provided with convenient operation ring with the insulating bar operation on the suspension centre card.
In use, the suspension centre card is stuck in the first of insulator upper end or porcelain bottle insulators with insulating bar, then suspension centre is fastened by the hanger on the suspension centre card with insulating cord.
In sum, the present invention's following advantage compared to existing technology:
(1) phase replacing insulator string method in many times towers of charged for replacement circuit of the present invention, realized the indirect operation installation, it transfers to ground to the stringing operation from tower, has greatly reduced the gap operating workload, improve operating efficiency, reduced labour intensity;
(2) according to the routine work method, bearing tool hanging point and insulator string hanging point all need stagger about 400mm, the removable insulator string is very difficult indirectly, labour intensity is very big, the method cooperates by suspension centre card and pulley jig, realize the location dress, taken off insulator, simple to operate quick, and the while is applicable to the indirect loading and unloading of synthetic insulator and porcelain vase (glass) insulator;
Adopt two cover bearing tool operations when (3) using, when arbitrary cover tool failures wherein, another set of instrument still can work, and has improved greatly the job safety coefficient;
(4) operational method of this project research, the Work tool light and flexible, simple to operate;
Description of drawings
Fig. 1 is the structural representation of the jig of embodiments of the invention 1.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the schematic diagram that pulley jig and insulating cord form assembly pulley.
Fig. 4 is that the pulley jig of the embodiment of the invention 1 is at the schematic diagram of the state of use.
Fig. 5 is the sustained center chucking tool structural representation of the embodiment of the invention 2.
Fig. 6 is the vertical view of Fig. 5.
The operation that label declaration 1 pulley jig 11 jigs 111 jigs snap on open seam 112 jigs of cross-arm on the hangers 2 insulating cords 3 suspension centre cards 31 hangers 32 suspension centre cards with the hangers 13 fixed pulley groups 14 jig upper ends of hook 122 running blocks of the perpendicular square groove 12 running blocks 121 running block bottoms of open seam encircles 4 cross-arms.
Embodiment
Below in conjunction with embodiment the present invention is described in more detail.
Embodiment 1
Phase replacing insulator string method in many times towers of a kind of charged for replacement circuit, its concrete steps are as follows: (1) at first forms pulley jig 1 and insulating cord 2 assembly pulleys such as Fig. 1～shown in Figure 4, described pulley jig specifically includes jig 11 and two s' running block 12, described jig is wing-shaped structure, be provided with the open seam 111 of the snapped in cross-arm 4 of linking up the jig front-back in the middle part of wing-shaped structure, reach the square groove 112 vertical with open seam that extends along two flank directions of wing-shaped structure, the notch of this square groove is positioned at the jig lower surface, lower surface at jig two flanks is respectively arranged with fixed pulley group 13, each fixed pulley group has more than one fixed pulley, be provided with the hangers 14 be used to the jig of slinging in the upper end of jig, the fixed pulley number of the fixed pulley group on the pulley number on each running block and jig one flank is complementary, be provided with the hook 121 be used to the wire of slinging in the bottom of each running block, be provided with for the hangers 122 that hangs the starter pulley group at running block;
The operating personnel steps on the supreme cross arm end of tower on (2) one towers, and the place hangs up properly purchase fall at upper cross-arm, and Ground Operation personnel thus purchase fall begin to hang and rise assembly pulley;
(3) operating personnel steps on tower to middle cross-arm root and with action bars the pulley jig is installed on the terminal insulator string suspension point of middle cross-arm place on another tower, jig middle aperture slots and square groove closely are fixed on the cross-arm, and the hook of two running blocks is hung into wire;
(4) the Ground Operation personnel tighten up insulating cord by the tail end of assembly pulley insulating cord, make the insulator load transfer to assembly pulley;
(5) take off the side of wire was spring catch with action bars, throw off insulator;
(6) load onto good insulator by reverse procedure, lay down the operation Work tool, personnel withdraw.
It is same as the prior art that the present embodiment is not stated part.
The present embodiment is substantially the same manner as Example 1, just after the step 5 of embodiment 1, increase following step, by two operating personnels to middle phase cross-arm root place, cooperate with action bars the self-control suspension centre that is loaded on the purchase fall is fixed due to the synthetic insulator upper end, or the first of porcelain bottle insulators, hanger on the suspension centre card hangs on two fixed pulleys between the two fixed pulley groups on the pulley jig, adjust the insulator position with the insulator adjuster, take off the cross-arm side spring catch, utilize insulator suspension centre card such as Fig. 5～Fig. 7 balanced hoisting insulator string, throw off the bulb of connecting insulator, insulator is put to ground; The hood type structure of described suspension centre card 3 for being made of two arc-like sheets is provided with the convenient hanger 31 that this suspension centre card is upwards sling at two arc-like sheets, also is provided with convenient operation ring 32 with the insulating bar operation on the suspension centre card.Also be provided with two fixed pulley between two fixed pulley groups of jig, two fixed pulleys are divided on the flank of open seam both sides.The suspension centre Cali hangs on the hanger on it on two the fixed pulley.
It is identical with embodiment 1 that the present embodiment is not stated part.
Claims (5)
1. phase replacing insulator string method in many times towers of a charged for replacement circuit, it is characterized in that: concrete steps are as follows: (1) at first forms assembly pulley with pulley jig and insulating cord, described pulley jig specifically includes jig and two s' running block, described jig is wing-shaped structure, be provided with the open seam of the snapped in cross-arm of linking up the jig front-back in the middle part of wing-shaped structure, reach the square groove vertical with open seam that extends along two flank directions of wing-shaped structure, the notch of this square groove is positioned at the jig lower surface, lower surface at jig two flanks is respectively arranged with the fixed pulley group, each fixed pulley group has more than one fixed pulley, be provided with the hangers be used to the jig of slinging in the upper end of jig, the fixed pulley number of the fixed pulley group on the pulley number on each running block and jig one flank is complementary, and is provided with the hook be used to the wire of slinging in the bottom of each running block;
The operating personnel steps on the supreme cross arm end of tower on (2) one towers, and the place hangs up properly purchase fall at upper cross-arm, and Ground Operation personnel thus purchase fall begin to hang and rise assembly pulley;
(3) operating personnel steps on tower to middle cross-arm root and with action bars the pulley jig is installed on the terminal insulator string suspension point of middle cross-arm place on another tower, jig middle aperture slots and square groove closely is fixed on the cross-arm, and the hook of two running blocks is hung into wire;
(4) the Ground Operation personnel tighten up insulating cord by the tail end of assembly pulley insulating cord, make the insulator load transfer to assembly pulley;
(5) take off the side of wire was spring catch with action bars, throw off insulator;
(6) load onto good insulator by reverse procedure, lay down the operation Work tool, personnel withdraw.
2. phase replacing insulator string method in many times towers of charged for replacement circuit according to claim 1, it is characterized in that: described replacing method also is included in increases following steps between the step 5 and 6: two operating personnels are to middle phase cross-arm root place, cooperate with action bars the self-control suspension centre that is loaded on the purchase fall is fixed due to the synthetic insulator upper end, or the first of porcelain bottle insulators, adjust the insulator position with the insulator adjuster, take off the cross-arm side spring catch, utilize insulator suspension centre card balanced hoisting insulator string, throw off the bulb of connecting insulator, insulator is put to ground.
3. phase replacing insulator string method in many times towers of charged for replacement circuit according to claim 2 is characterized in that: be provided with for the hangers that hangs the starter pulley group at running block.
4. phase replacing insulator string method in many times towers of charged for replacement circuit according to claim 3, it is characterized in that: also be provided with two fixed pulley on the jig between the two fixed pulley groups of jig, two fixed pulleys are divided on the flank of open seam both sides.
5. phase replacing insulator string method to many times towers of 4 any one described charged for replacement circuit according to claim 1, it is characterized in that: the hood type structure of described suspension centre card for being consisted of by two arc-like sheets, be provided with the convenient hanger that this suspension centre card is upwards sling at two arc-like sheets, on the suspension centre card, also be provided with convenient operation ring with the insulating bar operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210316624.5A CN102882153B (en) | 2012-08-30 | 2012-08-30 | Phase replacing insulator string method in charged for replacement circuit many times towers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210316624.5A CN102882153B (en) | 2012-08-30 | 2012-08-30 | Phase replacing insulator string method in charged for replacement circuit many times towers |
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| CN102882153A true CN102882153A (en) | 2013-01-16 |
| CN102882153B CN102882153B (en) | 2015-09-30 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872621A (en) * | 2014-03-10 | 2014-06-18 | 国家电网公司 | Fixture for replacing strain insulator string under electrified state based on earth potential method and operation method |
| CN103928867A (en) * | 2014-04-24 | 2014-07-16 | 国家电网公司 | Double-hoisting-point pole head clamp for replacing straight-line insulator of 220 kV line steel pipe pole in electrified mode |
| CN104201629A (en) * | 2014-09-24 | 2014-12-10 | 国家电网公司 | Insulator string hanging point buffer method and insulator string hanging point connecting structure |
| CN105514862A (en) * | 2015-12-04 | 2016-04-20 | 国家电网公司 | Live-line replacement method and device for jumper suspension insulator string of common-tower and multi-circuit power transmission line |
| CN107069562A (en) * | 2017-06-28 | 2017-08-18 | 云南电网有限责任公司曲靖供电局 | Replacing insulator under electrified method and load transfer device |
| CN107086495A (en) * | 2017-06-28 | 2017-08-22 | 云南电网有限责任公司曲靖供电局 | Load transfer instrument and electric power maintenance equipment |
| CN107611846A (en) * | 2017-09-29 | 2018-01-19 | 国家电网公司 | A kind of insulator section replacing device and replacing options |
| CN109586205A (en) * | 2018-11-21 | 2019-04-05 | 国网宁夏电力有限公司电力科学研究院 | Power transmission line ground wire presss from both sides auxiliary installation device |
| CN110112678A (en) * | 2019-06-20 | 2019-08-09 | 中国南方电网有限责任公司超高压输电公司柳州局 | A kind of complete Work tool of charged for replacement duplex V-type pendency composite insulator |
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| CN201466574U (en) * | 2009-06-11 | 2010-05-12 | 华北电力科学研究院有限责任公司 | Device for isoelectrically replacing insulator and accessory of iron tower of transmission line |
| CN201518397U (en) * | 2009-06-16 | 2010-06-30 | 福建省福州电业局 | Tool for replacing line suspension insulation string in 220 KV circuit with charged line |
| CN102163824A (en) * | 2011-02-14 | 2011-08-24 | 福建省电力有限公司厦门电业局 | Operating tool and operation method for electrically replacing T-type mounting point suspending insulator in 110kV line steel pipe rod |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872621A (en) * | 2014-03-10 | 2014-06-18 | 国家电网公司 | Fixture for replacing strain insulator string under electrified state based on earth potential method and operation method |
| CN103872621B (en) * | 2014-03-10 | 2016-08-24 | 国家电网公司 | A kind of earth potential method charged changing tension-resisting insulator fixture and operational method |
| CN103928867A (en) * | 2014-04-24 | 2014-07-16 | 国家电网公司 | Double-hoisting-point pole head clamp for replacing straight-line insulator of 220 kV line steel pipe pole in electrified mode |
| CN104201629A (en) * | 2014-09-24 | 2014-12-10 | 国家电网公司 | Insulator string hanging point buffer method and insulator string hanging point connecting structure |
| CN105514862A (en) * | 2015-12-04 | 2016-04-20 | 国家电网公司 | Live-line replacement method and device for jumper suspension insulator string of common-tower and multi-circuit power transmission line |
| CN105514862B (en) * | 2015-12-04 | 2017-03-29 | 国家电网公司 | Multiple-loop line transmission line of electricity jumper suspension insulator chain charged for replacement method and device |
| CN107069562A (en) * | 2017-06-28 | 2017-08-18 | 云南电网有限责任公司曲靖供电局 | Replacing insulator under electrified method and load transfer device |
| CN107086495A (en) * | 2017-06-28 | 2017-08-22 | 云南电网有限责任公司曲靖供电局 | Load transfer instrument and electric power maintenance equipment |
| CN107086495B (en) * | 2017-06-28 | 2019-05-31 | 云南电网有限责任公司曲靖供电局 | Load transfer tool and electric power maintenance equipment |
| CN107611846A (en) * | 2017-09-29 | 2018-01-19 | 国家电网公司 | A kind of insulator section replacing device and replacing options |
| CN107611846B (en) * | 2017-09-29 | 2023-10-13 | 国家电网公司 | Segmented insulator replacement device and replacement method |
| CN109586205A (en) * | 2018-11-21 | 2019-04-05 | 国网宁夏电力有限公司电力科学研究院 | Power transmission line ground wire presss from both sides auxiliary installation device |
| CN109586205B (en) * | 2018-11-21 | 2023-10-31 | 国网宁夏电力有限公司电力科学研究院 | Auxiliary installation device for ground wire clamp of power transmission line |
| CN110112678A (en) * | 2019-06-20 | 2019-08-09 | 中国南方电网有限责任公司超高压输电公司柳州局 | A kind of complete Work tool of charged for replacement duplex V-type pendency composite insulator |
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| CN102882153B (en) | 2015-09-30 |
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