CN102545102B - 1000-Kv tension-resistant horizontal insulator charged exchange device - Google Patents
1000-Kv tension-resistant horizontal insulator charged exchange device Download PDFInfo
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- CN102545102B CN102545102B CN201210044201.2A CN201210044201A CN102545102B CN 102545102 B CN102545102 B CN 102545102B CN 201210044201 A CN201210044201 A CN 201210044201A CN 102545102 B CN102545102 B CN 102545102B
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- 239000012212 insulator Substances 0.000 title claims abstract description 69
- 239000012211 strain insulator Substances 0.000 claims description 42
- 238000009413 insulation Methods 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000004873 anchoring Methods 0.000 description 5
- 229910001069 Ti alloy Inorganic materials 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention relates to a 1000-Kv tension-resistant horizontal insulator charged exchange device. The device comprises a large-bypass stressing system, wherein the large-bypass stressing system comprises a tension-resistant front clamp and a tension-resistant rear clamp; an insulating pull bar is arranged between the tension-resistant front clamp and the tension-resistant rear clamp; a wire-tensioning device is arranged at the end head of the insulating pull bar; and a functional opening is formed on the tension-resistant front clamp. The invention provides the tension-resistant horizontal insulator charged exchange device, which is convenient to operate, exchanges devices simply and is safe and reliable to use.
Description
Technical field
The invention belongs to extreme high voltage hot line maintenance technical field, relate to a kind of tension-proof horizontal isolator hot-line replacing device, relate in particular to a kind of 1000kV UHV transmission line tension-proof horizontal replacing device for insulator.
Background technology
1000kV extra-high voltage grid is the highest voltage level electrical network of the current input commercial operation in China and even the whole world, within 2008, is built up and puts into operation to Jingmen, Hubei electrical network by the Shanxi southeast, and that is building also has northwest to North China, southwest to Central China.Rely on these extra-high voltage grids to realize vast capacity energy conversion and allotment, meet Chinese society doctrine and build the demand of high speed development to the energy.
Play the just impact of the deciding property of safety belt on electrical network that time that 1000kV extreme high voltage electrical network puts into operation at it, Ta Shi China electrical network is more powerful, but it is once have an accident more serious to the impact of original electrical network.In order to improve the power supply reliability of 1000kV extra-high voltage grid, must strengthen the operational management of electrical network, and actively develop the work and the ability that do not have a power failure and fix a breakdown.So charged for replacement 1000kV tension-proof horizontal insulator just becomes the technical barrier that must solve.
It is the general principle of ZL022248056 that 1000kV extreme high voltage tension-proof horizontal isolator hot-line replacing device has been continued to use the patent No., it only limits to 500kV tension-proof horizontal isolator hot-line replacing, with respect to 1000kV insulator string, 10 meters of left and right of its length, weigh 1500 kilograms, be to realize the de-string work of insulator by the scheme of the stressed cooperation bottle-holding rack of 500kV bypass, because the bending sag of bottle-holding rack is too large, insulator cannot relax.
Summary of the invention
In order to solve the above-mentioned technical problem existing in background technology, the invention provides that a kind of operation is convenient, the simple and safe and reliable tension-proof horizontal isolator hot-line replacing device of changing device more.
Technical solution of the present invention is: the invention provides a kind of tension-proof horizontal isolator hot-line replacing device, its special character is: described tension-proof horizontal isolator hot-line replacing device comprises the stressed system of large bypass, and the stressed system of described large bypass is blocked before comprising strain insulator, strain back card; Before described strain insulator, between card and strain back card, be provided with insulation pull-rod, the termination of described insulation pull-rod is provided with wire tensioning device; Before described strain insulator, on card, offer function opening.
Card is the end card merging up and down before above-mentioned strain insulator, and described strain back card is wing clamp, described insulation pull-rod be arranged on strain back card both sides and with strain insulator before link and connect.
Above-mentioned functions opening comprise the grading ring for dodging grading ring support arm dodge groove, for the bolt preformed hole of fixed mask ring, for the bolt preformed hole of fixing hanging wire yoke plate and for the hanging hole of fixed insulation pull-rod.
Before above-mentioned strain insulator, card blocks and the front card of lower strain insulator before comprising strain insulator; Cartoon is crossed bolt and is connected with fastening before lower strain insulator before described upper strain insulator.
Above-mentioned grading ring is dodged groove and is opened in the edge of front ends card, and described shading ring bolt preformed hole, hanging wire yoke plate bolt preformed hole and the hanging hole for fixed insulation pull-rod are all one or more.
Above-mentioned wire tensioning device comprises the first mechanical wire grip, and described insulation pull-rod links before by the first mechanical wire grip and strain insulator and connects.
Above-mentioned wire tensioning device also comprises hydraulic wire grip, and described strain back card is connected with insulation pull-rod by hydraulic wire grip.
Above-mentioned tension-proof horizontal isolator hot-line replacing device also comprises the stressed system of little bypass that is arranged on the stressed internal system of large bypass.
The stressed system of above-mentioned little bypass is blocked and the second mechanical wire grip after comprising enclosed; After described enclosed, cartoon is crossed the second mechanical wire grip and is blocked and be connected before strain insulator; After described enclosed, cutting ferrule is connected on the steel cap of insulator to be replaced a slice insulator below.
The stressed system of above-mentioned little bypass is blocked and the second mechanical wire grip before comprising strain back card, enclosed; The front cartoon of described enclosed is crossed the second mechanical wire grip and is connected with strain back card; Described strain back card is socketed on the towing plate of gold utensil chain string, is connected to before described enclosed in the groove of the steel cap of a slice insulator before insulator to be replaced.
The stressed system of above-mentioned little bypass is blocked after comprising enclosed, enclosed is front blocks and the second mechanical wire grip, and after described enclosed, cartoon is crossed the second mechanical wire grip and blocks and be connected before enclosed; After described enclosed, cutting ferrule is connected on the steel cap of insulator of insulator to be replaced back, links in the groove that is connected on insulator front end insulator steel cap to be replaced before described enclosed.
Advantage of the present invention is:
1, more changing device is simple.Tension-proof horizontal isolator hot-line replacing device provided by the present invention adopts the stressed system of large and small bypass, utilize the stressed system of large bypass first by bunch of insulator closed string pine, recycle the stressed system of little bypass local replacing string is received to pine again, strength is little like this, amount of contraction is large, easily de-string, and without bottle-holding rack, thereby volume, the weight with electric tool greatly reduced.
2, operation is convenient.Tension-proof horizontal isolator hot-line replacing device provided by the present invention is in the time changing bunch of insulator, first stressed large bypass system is tightened up, make bunch of insulator lax, again stressed little bypass system is tightened up, insulator is thrown off by front end (side of wire was), and with insulation ropes binding front end insulator, strain stressed after, slowly remove little bypass stressed, insulator string total weight is born by insulation ropes, and slowly lax, under insulator string, be threaded to vertical, can insulator string be dropped down onto to ground by lifting means and change, operation is very convenient.
3, do not remove original any facility on grading ring and circuit, safe and reliable.Front ends card of the present invention is the version that is provided with several functions hole, groove on existing jig, can, across closed insulator string, front ends card be installed, and does not remove original any facility on grading ring and circuit, very easy to use.Meanwhile, front ends card provided by the present invention adopts the upper and lower plate of titanium alloy, is directly merged in use, and be bolted fastening combining by upper and lower plates, simple in structure, easy and simple to handle.
Brief description of the drawings
Fig. 1 is the use view of tension-proof horizontal isolator hot-line replacing device provided by the present invention;
Fig. 2 is the structural representation of front ends card of the present invention;
Fig. 3 is the structural representation of strain back card of the present invention;
Wherein:
1-insulator suppending hole; 2-jig fastening bolt holes; 3-shading ring set bolt preformed hole; 4-grading ring support is dodged groove; 5-grading ring bolt preformed hole; 6-insulation pull-rod hanging hole; 7-the second wire grip hanging hole; 8-shading ring; 9-hanging wire yoke plate; Card before 10-strain insulator; 11-grading ring; The mechanical wire grip of 12-first; The mechanical wire grip of 13-second; Card before 14-enclosed; After 15-enclosed, block; The 16-pull-rod that insulate; 17-hydraulic wire grip; 18-strain back card; 19-the second wire grip hanging hole; 20-hydraulic line tightening hanging hole.
Embodiment
Referring to Fig. 1, the invention provides a kind of tension-proof horizontal isolator hot-line replacing device, this tension-proof horizontal isolator hot-line replacing device comprises the stressed system of large bypass, the large stressed system of bypass comprises the front card 10 of strain insulator, strain back card 18; Before strain insulator, between card 10 and strain back card 18, be provided with insulation pull-rod 16, the termination of insulation pull-rod 16 is provided with wire tensioning device; Before strain insulator on card 10, offer function opening.Card 10 is to merge up and down end card and strain back card 18 is wing clamps before strain insulator, and insulation pull-rod 16 is arranged on this wing clamp both sides.
Referring to Fig. 2, the present invention before strain insulator, block the function opening of offering on 10 comprise for the grading ring support of clamping grading ring 11 support arms dodge groove 4, for shading ring set bolt preformed hole 3 that shading ring 8 is fixed, for the grading ring bolt preformed hole 5 of fixing hanging wire yoke plate 9 and for fixed insulation pull-rod hanging hole 6, for connecting the second wire grip hanging hole 7.
Before strain insulator, card 10 blocks and the front card of lower strain insulator before comprising strain insulator; Cartoon is crossed bolt and is connected with fastening before lower strain insulator before upper strain insulator.
The edge of front ends card dodged groove 4 and is opened in by grading ring support, shading ring set bolt preformed hole 3, grading ring bolt preformed hole 5 and be all one or more for fixed insulation pull-rod hanging hole 6.
Wire tensioning device comprises the first mechanical wire grip 12 and hydraulic wire grip 17, and insulation pull-rod 16 is connected with card 10 before strain insulator by the first mechanical wire grip 12; Strain back card 18 is connected with insulation pull-rod 16 by hydraulic wire grip 17.
Continue referring to Fig. 1, tension-proof horizontal isolator hot-line replacing device provided by the present invention also comprises the stressed system of little bypass that is arranged on the stressed internal system of large bypass, and the stressed system of little bypass comprises blocks 15 and the second mechanical wire grip 13 after enclosed; After enclosed, block 15 by the second mechanical wire grip 13 with before strain insulator, block 10 and be connected; After enclosed, block 15 and be socketed on the steel cap of an insulator after insulator to be replaced, first damages insulator to change front end.
As the second embodiment of the stressed system of little bypass, the stressed system of little bypass provided by the present invention comprise block 15 after enclosed, card 14 and the second mechanical wire grip 13 before enclosed, after enclosed, block 15 by the second mechanical wire grip 13 with before enclosed, block 14 and be connected; After enclosed, block 15 and be socketed on the steel cap of an insulator after insulator to be replaced, before enclosed, card 14 is connected in the steel cap groove of the previous insulator of insulator to be replaced to change any insulator except first insulator of two ends.
As the 3rd embodiment of the stressed system of little bypass, the stressed system of little bypass provided by the present invention comprises the front card 14 of enclosed and the second mechanical wire grip 13; Before enclosed, card 14 is connected with strain back card 18 by the second mechanical wire grip 13; Strain back card 18 is socketed on the towing plate of gold utensil chain string, and card 14 is connected in the groove of the steel cap of a slice insulator before insulator to be replaced before enclosed.
Principle of the present invention is to set up the stressed system of big or small bypass, accepts transfer the de-string of strain insulator string tension force, and a set of is the stressed system of large bypass, and it is to accept strain-resisting whole string tension force, and makes insulator string lax.Another set of is the stressed system of little bypass, and it is while changing single insulator, the stressed system of little bypass of foundation, general title is short by three across four, changes termination first and any sheet, utilizes the second mechanical wire grip Manual tightening, in the time that amount of contraction reaches the required gap of de-string, can take off string and change.
End chucking appliance should possess in 9 anchorings of 1000kV hanging wire yoke plate, and has with large and small stressed system and carry out the function of anchoring and possess the function of not dismantling grading ring 11 and shading ring 8 facilities.Wire tensioning device is the combination of hydraulic line tightening device and armstrong's patent wire tensioning device, is first to tighten up surplus with hand gear, then tightens up insulator string with hydraulic means.Its advantage is: 1. dwindle hydraulic means stroke, 2. reduce operating personnel's labour intensity, 3. promoted the reasonability of operation procedure.1000kV insulated tension pole work load 100kN, failure load 300kN, and by the severe test of wet withstand voltage, the switching overvoltage of the corresponding power frequency of 1000kV, lightning overvoltage.
10 meters of left and right of 1000kV insulator string length, weigh 1500 kilograms, are to realize the de-string work of insulator by the scheme of the stressed cooperation bottle-holding rack of 500kV bypass, because the bending sag of bottle-holding rack is too large, insulator cannot relax and take off string.Use so the stressed system of large bypass first insulator to be received lax, make tension force transfer to the stressed system of large bypass, then it is lax to use the stressed system of little bypass " short by three across four " that three insulators are received, and take off string, change and damage insulator.Then recover the stressed of original insulator string, complete charged for replacement work.
The stressed system of bypass must be anchored on the wire link plate yoke plate of insulator string front end and the towing plate of rear end.Two anchoring yoke plate form structure differences, carry out anchoring so should develop the jig of different structure form.
On wire hanging wire yoke plate 9, hang with 8 wires, grading ring 11 is housed and is connected with two insulator string strings.These devices can not move or remove live line working.The installation anchoring of instrument only has the scheme that adopts Fig. 2, adopts titanium alloy sheet, upper and lower merging, and bolt connects fastening.According to former design Bower Anchor admittedly hole 1, shading ring set bolt preformed hole 3, jig fastening bolt holes 2, the grading ring support of use dodge groove 4, grading ring bolt preformed hole 5 and large bypass hanging hole 6, little bypass hanging hole 7, plate surface construction.Fastening bolt and bypass hanging hole bolt all adopt high strength bolt, stressed in order to firm jig plate shape, and before the strain insulator forming like this, jig is Fig. 2, have just possessed function of surfing the Net described in summary of the invention.Before strain insulator, card is made of titanium alloy, lightweight, does not tear grading ring 11 and other facility in lever when installation open, and operation is very easy.
Rear end anchorage clip is arranged on rear haulage plate as Fig. 3, it is with titanium alloy, making, there is " door " shape socket and blind bolt that the traction of inserting is pulled, on " door " shape socket is inserted in and wins in succession, bolt is by jig and anchorage clip after the fastening formation that is connected of winning in succession, jig has both wings, and leaves hydraulic line tightening hanging hole 20 and the second wire grip hanging hole 19.Hydraulic wire grip 17 is connected on hydraulic line tightening hanging hole 20, sets up the stressed system of large bypass.Manually wire grip is connected on the second wire grip hanging hole 19 and sets up small side road system.
The present invention, in the time of specific works, first installs the stressed system of large bypass by high-altitude that Fig. 1 is shown in, and its order is jig before rear yoke plate anchorage clip+hydraulic wire grip 17+ insulated tension pole+armstrong's patent wire grip+strain insulator, and adjusts to the right place.By the position of changing insulator, in the time changing first insulator of insulator string two ends, the stressed system of little bypass is installed and adjusts to the right place, during for any other insulator, the stressed system of bypass is installed, all to adjust to the right place.After large and small stressed system is in place, first tighten up large stressed system and accept whole tension force of insulator string, insulator is lax; Tighten up again little stressed system, changed insulator and can change by flake.
More changing device provided by the present invention also can whole string lands replacing.After when needed front end insulator string being got loose, tie up solid the 3rd insulator fastening with insulator lifting rope, by ground, electrician coordinates, and little bypass is lax, insulator string tension force is transferred on lifting rope, more slowly carries down insulator string, and under drop to ground and change.Rising recovery order is contrary.
Claims (6)
1. a 1000Kv tension-proof horizontal isolator hot-line replacing device, it is characterized in that: described 1000Kv tension-proof horizontal isolator hot-line replacing device comprises the stressed system of large bypass and be arranged on the stressed system of little bypass of the stressed internal system of large bypass, the stressed system of described large bypass comprises card before strain insulator, strain back card; Before described strain insulator, between card and strain back card, be provided with insulation pull-rod, the termination of described insulation pull-rod is provided with wire tensioning device; Before described strain insulator, on card, offer function opening; Card is the end card merging up and down before described strain insulator, and described strain back card is wing clamp, described insulation pull-rod be arranged on the both sides of strain back card and with strain insulator before link and connect; Described function opening comprise the grading ring for dodging grading ring support arm dodge groove, for dodging the bolt preformed hole of fixed mask collar bolt, for the bolt preformed hole of fixing hanging wire yoke plate and for the hanging hole of fixed insulation pull-rod; Before described strain insulator, card blocks and the front card of lower strain insulator before comprising strain insulator; Cartoon is crossed bolt and is connected with fastening before lower strain insulator before described upper strain insulator; Described grading ring is dodged groove and is opened in the edge blocking before strain insulator, and described shading ring bolt preformed hole, hanging wire yoke plate bolt preformed hole and the hanging hole for fixed insulation pull-rod are all one or more.
2. 1000Kv tension-proof horizontal isolator hot-line replacing device according to claim 1, is characterized in that: described wire tensioning device comprises the first mechanical wire grip, and described insulation pull-rod links before by the first mechanical wire grip and strain insulator and connects.
3. 1000Kv tension-proof horizontal isolator hot-line replacing device according to claim 2, is characterized in that: described wire tensioning device also comprises hydraulic wire grip, and described strain back card is connected with insulation pull-rod by hydraulic wire grip.
4. according to the 1000Kv tension-proof horizontal isolator hot-line replacing device described in the arbitrary claim of claim 1-3, it is characterized in that: the stressed system of described little bypass is blocked and the second mechanical wire grip after comprising enclosed; After described enclosed, cartoon is crossed the second mechanical wire grip and is blocked and be connected before strain insulator; After described enclosed, cutting ferrule is connected on the steel cap of an insulator after insulator to be replaced.
5. according to the 1000Kv tension-proof horizontal isolator hot-line replacing device described in the arbitrary claim of claim 1-3, it is characterized in that: the stressed system of described little bypass is blocked and the second mechanical wire grip before comprising strain back card, enclosed; The front cartoon of described enclosed is crossed the second mechanical wire grip and is connected with strain back card; Described strain back card is socketed on the towing plate of gold utensil chain string, is connected to before described enclosed in the groove of the steel cap of a slice insulator before insulator to be replaced.
6. according to the 1000Kv tension-proof horizontal isolator hot-line replacing device described in the arbitrary claim of claim 1-3, it is characterized in that: the stressed system of described little bypass is blocked after comprising enclosed, enclosed is front blocks and the second mechanical wire grip, and after described enclosed, cartoon is crossed the second mechanical wire grip and blocks and be connected before enclosed; After described enclosed, cutting ferrule is connected on the steel cap of a slice insulator after insulator to be replaced, links in the groove that is connected on the steel cap of a slice insulator before insulator to be replaced before described enclosed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210044201.2A CN102545102B (en) | 2012-02-24 | 2012-02-24 | 1000-Kv tension-resistant horizontal insulator charged exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210044201.2A CN102545102B (en) | 2012-02-24 | 2012-02-24 | 1000-Kv tension-resistant horizontal insulator charged exchange device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102545102A CN102545102A (en) | 2012-07-04 |
| CN102545102B true CN102545102B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210044201.2A Active CN102545102B (en) | 2012-02-24 | 2012-02-24 | 1000-Kv tension-resistant horizontal insulator charged exchange device |
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| CN (1) | CN102545102B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066528B (en) * | 2012-12-13 | 2016-11-23 | 云南电网公司带电作业分公司 | The more changing device of High aititude 500kV tension resistant four insulator chain and replacing options |
| CN108462099B (en) * | 2018-02-27 | 2020-01-24 | 国家电网公司 | Method for replacing double-connection double-hanging-point suspension string insulator of +/-800 kV extra-high voltage line |
| CN112366601B (en) * | 2020-11-27 | 2022-04-15 | 国网四川省电力公司检修公司 | Duplex strain end clamp |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2552142Y (en) * | 2002-04-22 | 2003-05-21 | 杨福民 | Tension-proof horizontal isolator hot-line replacing device |
| CN202474686U (en) * | 2012-02-24 | 2012-10-03 | 陕西秦川电力器材实业有限公司 | Electrified replacing device for horizontal tension-proof insulator of 1,000 kV |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002095118A (en) * | 2000-09-11 | 2002-03-29 | Yamamoto Denko Kk | Replacement method of line hardware of tension insulator device of extra-high voltage cable |
-
2012
- 2012-02-24 CN CN201210044201.2A patent/CN102545102B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2552142Y (en) * | 2002-04-22 | 2003-05-21 | 杨福民 | Tension-proof horizontal isolator hot-line replacing device |
| CN202474686U (en) * | 2012-02-24 | 2012-10-03 | 陕西秦川电力器材实业有限公司 | Electrified replacing device for horizontal tension-proof insulator of 1,000 kV |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2002-95118A 2002.03.29 |
| 带电更换500 kV 直线转角塔绝缘子串通用工具的研制;郝旭东等;《华北电力技术》;20080229(第2期);8-11 * |
| 郝旭东等.带电更换500 kV 直线转角塔绝缘子串通用工具的研制.《华北电力技术》.2008,(第2期),8-11. |
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