CN101771252B - Device and method for electriferous replacement of phase-to-phase insulators of 220 KV compact line - Google Patents
Device and method for electriferous replacement of phase-to-phase insulators of 220 KV compact line Download PDFInfo
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- CN101771252B CN101771252B CN2009100765017A CN200910076501A CN101771252B CN 101771252 B CN101771252 B CN 101771252B CN 2009100765017 A CN2009100765017 A CN 2009100765017A CN 200910076501 A CN200910076501 A CN 200910076501A CN 101771252 B CN101771252 B CN 101771252B
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Abstract
The invention discloses a device and a method for the electriferous replacement of phase-to-phase insulators of a 220 KV compact line. The device comprises an insulating combined frame and a conducting wire fixer, wherein the insulating combined frame is provided with a working platform corresponding to the positions of two adjacent phase lines on which insulators to be replaced are positioned; and the conducting wire fixer is provided with two clamping apparatus respectively connected with the two adjacent phase lines and an insulating rod connected between the two clamping apparatus, and at least one end of the insulating rod is matched with one of the two clamping apparatus by leadscrew nuts so as to adjust the distance between the two adjacent phase lines. The method comprises the following steps of erecting the insulating combined frame to lead the working platform of the insulating combined frame to correspond to the positions of the two adjacent phase lines on which the insulators to be replaced are positioned; installing the conducting line fixer on the two adjacent phase lines to lead the two clamping apparatus of the conducting wire fixer to be respectively connected to the two adjacent phase lines; and adjusting the distance between the two adjacent phase lines by adjusting the insulating rod between the two clamping apparatus so that the insulators can be replaced. The device and the method can conveniently carry out electriferous replacement of the phase-to-phase insulators of the 220 KV compact line.
Description
Technical field
The present invention relates to a kind of device and method of charged for replacement 220kV compact line phase insulation.
Background technology
The present whole nation of 220kV compact line is the circuit in North China only, and other areas are preparing to establish.About the about 2m of phase distance between centers of tracks of this compact line, both can reduce occupation of land, and can improve transmission capacity again, meaning is very great.But it is accident happens and defective also, needs maintenance to change, and especially the live line working maintenance is changed.Net Langfang, North China electric company has jurisdiction over the two times 220kV compact lines in peace village, successively twice the sub-fault of phase insulation takes place over the past two years.Once be that insulator one end comes off, lose supporting role; Flashover is adhered in a clog snow.At present and the way that solves can only be to have a power failure to change, economic loss is lost all quite huge with social benefit.220kV compact line hotline maintenance also is in the primary stage in China at present; Although we have progressively carried out some 220kV compact line hotline maintenance application work for some; But the degree of depth of carrying out and dynamics are all less; Mainly be on body of the tower, using among a small circle, be in and accumulate operating experience etc. gradually.And the work of 220kV compact line phase insulation subband charged renewal is not all carried out at present both at home and abroad.And the transmission line hotline maintenance is a n-th-trem relation n power network safety operation, improves the transmission line availability coefficient, more rationally with the research work of aspect important technology progress such as scientific arrangement line maintenance cycle and management progress.
This 220kV compact line is article one 220kV compact line in the world; Remove the inventor to its live line working maintenance and did part live line working Project Study and too development in earlier stage; Worldwide does not all have the Method and kit for of charged for replacement 220kV compact line phase insulation, and the present invention carries out method research and too development to this circuit phase insulation subband charged renewal for the first time.
Summary of the invention
The technical problem that the present invention will solve provides a kind of device and method of charged for replacement 220kV compact line phase insulation, easily charged for replacement 220kV compact line phase insulation.
In order to solve the problems of the technologies described above; The present invention provides a kind of device of charged for replacement 220kV compact line phase insulation; This device comprises: the insulation combined bay, have workbench, and workbench is corresponding with the position of the two adjacent phase lines at insulator to be replaced place; And standoff, having two and connect the jig of two adjacent phase lines respectively and be connected in two insulating bars between the jig, at least one end of insulating bar has feed screw nut with one of two jigs and cooperates, to regulate the spacing of two adjacent phase lines.
Preferably; The insulation combined bay also comprises: at least two insulation pylons that link together, and two insulation pylons are arranged in the both sides of said 220kV compact line respectively, wherein; Said insulation pylon is a frame structure, the body of the tower that has adjustable for height base and be connected with said base.
Preferably, body of the tower has a plurality of tower joints, is socket connection between a plurality of tower joints.
Preferably, removably be connected with a plurality of insulator crossarms between at least two insulation pylons.
Preferably, base comprises: bearing, through earth anchorage; And leading screw, the leading screw two ends are respectively feed screw nut with bearing and body of the tower and cooperate, so that substructure height is adjustable.
Preferably, two jigs are the member structure that two ends are provided with hook portion, and hook portion has the arc groove with the lead of phase line coupling.
Preferably, workbench is a hanging ladder, and hanging ladder has can be connected in two hooks between the insulation pylon.
Preferably, workbench is a folded ladder, and folded ladder is connected in the insulation pylon.
The present invention also provides a kind of method of charged for replacement 220kV compact line phase insulation, and this method comprises: set up the insulation combined bay, make that the workbench of insulation combined bay is corresponding with the position of the two adjacent phase lines at insulator to be replaced place; On two adjacent phase lines, standoff is installed, is made two jigs of standoff be connected on the two adjacent phase lines; And, regulate the spacing of two adjacent phase lines, to change said insulator through regulating the insulating bar between two jigs.
Beneficial effect of the present invention: the present invention can support oneself in the open air, all insulation, charged for replacement 220kV compact line phase insulation easily.With making the variation of original planned extremely strong work generation matter such as cycled recondition, instruct maintenance to step a crucial step to state.And have the repairing function concurrently, and improve the circuit reliability of operation, reach the purpose of repair based on condition of component.
Other features and advantages of the present invention will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in the specification of being write, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 uses the device of charged for replacement 220kV compact line phase insulation of the present invention to change the sub sketch map of phase insulation for when the phase line of 220kV compact line is delta arrangement;
Fig. 2 is the schematic perspective view of Fig. 1;
Fig. 3 is the rough schematic view of standoff among Fig. 1;
Fig. 4 uses the sub structure diagram of replacing phase insulation of the device of charged for replacement 220kV compact line phase insulation of the present invention for when the phase line of 220kV compact line is delta arrangement;
Fig. 5 uses the device of charged for replacement 220kV compact line phase insulation of the present invention to change the sub structure diagram of phase insulation for when the phase line of 220kV compact line is vertical arrangement;
Fig. 6 shows the structural representation of first jig 21 shown in Fig. 4;
Fig. 7 shows the structural representation of second jig 22 shown in Fig. 4;
Fig. 8 shows the structural representation of the 3rd jig 25 shown in Fig. 4;
Fig. 9 shows the A of end of first jig shown in Figure 6 to view.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
The device of charged for replacement 220kV compact line phase insulation of the present invention is described with reference to figure 1, Fig. 2, Fig. 4, Fig. 5; It comprises: insulation combined bay 1, standoff 2, and wherein, insulation combined bay 1 comprises at least two insulation pylons 14; Two insulation pylons 14 that are arranged in 220kV compact line both sides respectively have been shown in the embodiment of the invention; Insulation is connected with a plurality of insulator crossarms between the pylon 14, and through a plurality of insulation backguys 15 tensions pylons 14 that insulate, and topples over preventing.The 220KV compact line is arranged in insulation combined bay 1; This insulation combined bay 1 is for all insulation and be provided with and belong to the corresponding workbench of two adjacent line positions mutually with insulator to be replaced respectively, and the live line working personnel get into equipotential so that carry out corresponding operating through insulation combined bay 1 thus.Workbench among the present invention can be two hanging ladders that are locked between two insulation pylons 14, and this hanging ladder has can be connected in two hooks between the insulation pylon 14.Also can be and corresponding a plurality of folded ladder of line position mutually that this folded ladder is connected in insulation pylon 14 with reference to figure 1 workbench.The time be in folded state in assembling, highly regulate when putting in place, stretch again at insulation pylon 14.Insulation pylon 14 be a frame structure, comprises adjustable for height base and is located at the body of the tower on the base, and body of the tower comprises a plurality of socket connections each other tower joint of (for example the hole axle cooperates and add the connected mode etc. of trip bolt), connects and dismantles with convenient.In addition, base comprises: bearing 145 and leading screw 144, and wherein, bearing 145 is through earth anchorage, and leading screw 144 two ends are respectively feed screw nut with bearing 145 and body of the tower and cooperate, thus the height of adjustable, insulating pylon 14.
Further; With reference to figure 3, Fig. 6 to Fig. 9 standoff 2 is described; Standoff 2 comprises two jigs and is connected in the insulating bar 23 between this two jig; At least one end of insulating bar 23 is provided with the leading screw section, and this end that is provided with the leading screw section forms feed screw nut with one of two jigs and cooperates, to regulate the spacing of two jigs.Should be appreciated that the two ends of insulating bar 23 also can form feed screw nut with two jigs respectively and cooperate.Wherein, Fig. 6 to Fig. 8 shows the view of first jig 21, second jig 22, the 3rd jig 25 respectively, and all jigs that illustrate are the member structure with hook portion, and hook portion has the arc groove with the lead coupling of phase line.As shown in Figure 4, when the phase line of 220kV compact line is delta arrangement, use different jigs can form three standoffs 2 simultaneously as required.As shown in Figure 5, when the phase line of 220kV compact line is vertical arrangement, use corresponding jig can form two standoffs 2 simultaneously.
With reference to figure 1 and Fig. 4, describe when the phase line of 220kV compact line is delta arrangement, use device of the present invention to change the scheme of phase insulation.The workbench 11,12,13 of device of the present invention corresponds respectively to first phase line 31, second phase line 32, third phase line 33, thereby uses standoff 2 can change the insulator between phase line adjacent one another are.Particularly; First jig 21 is connected with the lower wire of first phase line; Two second jigs 22 are connected with the lower wire of second phase line 32 and the lower wire of third phase line 33 respectively; Regulate the insulating bar of being located between first jig 21 and second jig 22 23 respectively through adjusting rod 24 then; Thereby can tighten up between first phase line 31 and second phase line 32 and the spacing between first phase line 31 and the third phase line 33 and make the power of the insulator between this two adjacent phase line transfer on the insulating bar 23, thereby can change insulator.In like manner, the 3rd jig 25 is connected with the outboard wire of second phase line 32 and the outboard wire of third phase line 33 respectively, through regulating two the 3rd insulating bars 25 between the jig 25, to change the insulator between second phase line 32 and the third phase line 33.
With reference to figure 5, describe when the phase line of 220kV compact line is vertical arrangement, use device of the present invention to change the scheme of phase insulation.Fig. 5 shows and is furnished with third phase line 34, the 4th phase line 35, the 5th phase line 36 vertically downward successively; Each phase line has four leads; All phase lines are all between insulation combined bay 1; The workbench of corresponding adjustment insulation combined bay 1 is corresponding to the position of each phase line, so that corresponding jig is installed and is changed insulator.Particularly; Two the 3rd jigs 25 are connected with the lower wire of third phase line 34, the upper conductor of the 4th phase line 35 respectively; Insulating bar 23 through adjustment is located between these two jigs is regulated the distance between these two jigs, so that change the insulator between third phase line 34 and the 4th phase line 35; In like manner, can change insulator between the 4th phase line 35 and the 5th phase line 36.
When assembling the insulation combined bay in apparatus of the present invention; Two groups of earth anchorages in the compact line both sides, are assembled two groups of bases, then two groups of bases are separately fixed on the earth anchor; Respectively successively from a plurality of tower joints of pegging graft; With insulation backguy 15 fixed insulation pylons 14, connect insulator crossarm in desired height position simultaneously as required, the height of certainly the peg graft insulation pylon of the leading screw separately 144 through regulating two insulation pylons 14 after with two assemblings is all regulated and is put in place.This insulation combined bay 1 can comprise a plurality of insulation pylons 14 that combine, and compact line is between insulation pylon 14.Convenient from describing, the present invention is that example is described with two insulation pylons.
In the embodiments of the invention, the height of tower joint can be designed as 2m, and the stroke of leading screw 144 can be made as 600-900mm, and the height of insulation pylon can reach 27m at least among Fig. 1.Insulation pylon 14 is moistureproof foam-filled insulated tube and processes, and insulation property are 450KV/1.8m, carries 5000KN.Insulator crossarm is that moistureproof foam-filled insulated tube is processed, and insulation property are 450KV/1.8m, carries 3500KN.Insulating bar 23 is processed for moistureproof foam-filled insulated tube, and insulation property are 450KV/1.8m, and the tightening force of standoff 2 is greater than 1000KN.
With reference to Fig. 1 and Fig. 4, Fig. 5 the method for charged for replacement 220kV compact line phase insulation of the present invention is described; This method comprises: set up insulation combined bay 1, make that the workbench 11,12,13 of insulation combined bay 1 is corresponding with the position of the two adjacent phase lines at insulator to be replaced place; Standoff 2 is installed on two adjacent phase lines, two jigs of standoff 2 are connected on the two adjacent phase lines; And the replacing insulator, regulate the insulating bar 23 between two jigs, to regulate the spacing of two adjacent phase lines, to change said insulator.Behind complete operation, the live line working people withdraws from equipotential, and both sides are dismantled the plug-in type insulation pylon simultaneously, removes all instruments and fulfils assignment.Wherein, when standoff being installed and changing insulator, charged staff is on workbench all the time.
More than be merely the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the device of charged for replacement 220kV compact line phase insulation is characterized in that said device comprises:
Insulation combined bay (1) has workbench (11,12,13), and said workbench (11,12,13) is corresponding with the position of the two adjacent phase lines at insulator to be replaced place; And
Standoff (2); Having two connects the jig of said two adjacent phase lines respectively and is connected in two insulating bars (23) between the said jig; At least one end of said insulating bar (23) has feed screw nut with one of two said jigs and cooperates, to regulate the spacing of said two adjacent phase lines.
2. device according to claim 1 is characterized in that, said insulation combined bay (1) also comprises:
At least two insulation pylons (14) that link together, and two said insulation pylons (14) are arranged in the both sides of said 220kV compact line respectively,
Wherein, said insulation pylon (14) is a frame structure, the body of the tower that has adjustable for height base and be connected with said base.
3. device according to claim 2 is characterized in that, said body of the tower has a plurality of tower joints (141), is socket connection between said a plurality of tower joints (141).
4. device according to claim 3 is characterized in that, removably is connected with a plurality of insulator crossarms between at least two said insulation pylons (14).
5. device according to claim 4 is characterized in that, said base comprises:
Bearing (145) is through earth anchorage; And
Leading screw (144), said leading screw (144) two ends are respectively feed screw nut with said bearing (145) and body of the tower and cooperate, so that said substructure height is adjustable.
6. device according to claim 5 is characterized in that, two said jigs are the member structure that two ends are provided with hook portion, and said hook portion has the arc groove with the lead of phase line coupling.
7. device according to claim 6 is characterized in that, said workbench (11,12,13) is a hanging ladder, and said hanging ladder has the hook that can be connected between two said insulation pylons (14).
8. device according to claim 6 is characterized in that, said workbench (11,12,13) is a folded ladder, and said folded ladder is connected in said insulation pylon (14).
9. the method for charged for replacement 220kV compact line phase insulation is characterized in that said method comprises:
Set up insulation combined bay (1), make that the workbench (11,12,13) of insulation combined bay (1) is corresponding with the position of the two adjacent phase lines at insulator to be replaced place;
Standoff (2) is installed on said two adjacent phase lines, is made two jigs of said standoff (2) be connected on the said two adjacent phase lines; And
Through regulating the insulating bar (23) between said two jigs, regulate the spacing of said two adjacent phase lines, to change said insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100765017A CN101771252B (en) | 2009-01-05 | 2009-01-05 | Device and method for electriferous replacement of phase-to-phase insulators of 220 KV compact line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100765017A CN101771252B (en) | 2009-01-05 | 2009-01-05 | Device and method for electriferous replacement of phase-to-phase insulators of 220 KV compact line |
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| Publication Number | Publication Date |
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| CN101771252A CN101771252A (en) | 2010-07-07 |
| CN101771252B true CN101771252B (en) | 2012-04-25 |
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| CN2009100765017A Active CN101771252B (en) | 2009-01-05 | 2009-01-05 | Device and method for electriferous replacement of phase-to-phase insulators of 220 KV compact line |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102664358B (en) * | 2012-04-23 | 2014-11-05 | 辽宁省电力有限公司鞍山供电公司 | Live replacement method for static contact of 220 kV flexible busbar |
| CN103050909B (en) * | 2012-12-25 | 2016-02-10 | 衢州电力局 | A kind of inter-phase spacer installation method and system thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3164441B2 (en) * | 1992-10-30 | 2001-05-08 | 古河電気工業株式会社 | Support equipment for overhead distribution lines |
| 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 |
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2009
- 2009-01-05 CN CN2009100765017A patent/CN101771252B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3164441B2 (en) * | 1992-10-30 | 2001-05-08 | 古河電気工業株式会社 | Support equipment for overhead distribution lines |
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| JP特许第3164441号B2 2001.05.08 |
| 孙兵等.中间电位法带电更换220 kV线路耐张零值绝缘子.《华北电力技术》.2009,(第9期),32-36. * |
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| CN101771252A (en) | 2010-07-07 |
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Owner name: STATE ELECTRIC NET CROP. SHAANXI QINCHUAN ELECTRIC Free format text: FORMER OWNER: SHAANXI QINCHUAN ELECTRIC POWER EQUIPMENT INDUSTRY CO., LTD. Effective date: 20130225 |
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Effective date of registration: 20130225 Address after: 100045 Beijing Fuxingmenwai No. 1 Nan Xiang Di Zang an Patentee after: North China Electrical Power Research Institute LLC Patentee after: State Grid Corporation of China Patentee after: Shaanxi Qinchuan Electric Power Equipment Industry Co., Ltd. Address before: 100045 Beijing Fuxingmenwai No. 1 Nan Xiang Di Zang an Patentee before: North China Electrical Power Research Institute LLC Patentee before: Shaanxi Qinchuan Electric Power Equipment Industry Co., Ltd. |
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