CN103594980B - The replacing options of big flange of high-voltage cable GIS terminal - Google Patents
The replacing options of big flange of high-voltage cable GIS terminal Download PDFInfo
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- CN103594980B CN103594980B CN201310530044.0A CN201310530044A CN103594980B CN 103594980 B CN103594980 B CN 103594980B CN 201310530044 A CN201310530044 A CN 201310530044A CN 103594980 B CN103594980 B CN 103594980B
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Abstract
The more changing device of a kind of big flange of high-voltage cable GIS terminal: being propped up support arrangement by terminator and dissection type large flange forms, terminator props up support arrangement: one supports little flange top board (1), which is provided with perforate; There is fixing nut (2) bottom surface supporting little flange top board, it is screwed with screw rod (3) in fixing nut, screw rod is additionally provided with adjusting nut (4), corresponding through hole that the lower end of screw rod has on a spike connecting plate (5), put in correspondence and be fixed on a spike connecting plate bottom surface a stay tube (6) in, the lower end of Zhi Chengguan is fixed with foot cup (7); Dissection type large flange is made up of two Semicircular half flanges, connects by connector symmetry on the faying face of half flange. It is simple that the present invention changes big flange of high-voltage cable GIS terminal, and the part of appliance related to is little, it is short to take; And owing to equipment and adnexa are without dismounting, can again put into operation, it is not necessary to carry out series of experiments and save time and cost. at once
Description
Technical field
The present invention relates to the more changing device of a kind of big flange of high-voltage cable GIS terminal. The method that the invention also relates to carry out big flange of high-voltage cable GIS terminal replacing with described device.
Background technology
High-voltage cable GIS terminal is positioned at bottom GIS terminal, attachment structure between cable termination epoxy bushing and GIS base is: cable termination epoxy bushing is provided with two-stage ring-shaped step, the little ring-shaped step being located below has screwed hole, constitutes the little flange that cable termination is fixed; Ring-shaped step above is connected with bottom GIS gas storehouse through screw outside GIS gas storehouse by big flange of high-voltage cable GIS terminal, its Main Function is that cable termination is fixed, make to press Guan Bi between cable termination epoxy bushing and GIS base, form good air-tightness, it is prevented that leak gas in GIS gas storehouse. Therefore GIS terminal large flange plays fixing and supports sealing function, but owing to general GIS terminal large flange is made of aluminum, mechanical strength is not as all the time, and therefore long-play easily cracks because of a variety of causes such as stress and metal fatigue. If the crackle forming continuous development of flange, will forming cracking, now flange does not just have and supports the effect sealed, and causes insulating gas to leak. Practical operating experiences having been found that, the case of crackle occur in several GIS terminal large flange. So when crackle occurs in GIS terminal large flange it is necessary to be replaced in time, it is prevented that defect expands further.
Traditional replacing options needs to have a power failure in conjunction with cable run to carry out. First is bled in GIS gas storehouse, then open GIS gas storehouse to be unloaded by whole cable termination outside GIS gas storehouse, and (if filling insulating oil in epoxy bushing, also will first to its process of draining the oil before dismounting) after removing epoxy bushing, just large flange can be extracted out and being replaced. After having changed large flange, epoxy bushing (oil-filled terminal also needs filling new insulating oil in epoxy bushing) need to be reinstalled, again GIS terminal is reinstalled in GIS gas storehouse, after finally GIS gas storehouse being filled with insulating gas, normal operating condition can be restored to.
Namely prior art existence technical problem is that:
First, owing to circuit is had a power failure by needs, if the scheduled outage time is more long-range, then may result in defect and worsen, or when circuit is important guarantor's electric line, has a power failure and be likely to result in load loss, reduce power supply reliability;
Second, exchonge step is cumbersome, and the part of appliance related to is more, and replacing takes longer;
3rd, owing to equipment and adnexa are through dismounting, could again put into operation after needing after returning to normal operating condition to carry out series of experiments, expend too much time and money.
Summary of the invention
First technical problem to be solved by this invention, it is simply that the more changing device of a kind of big flange of high-voltage cable GIS terminal is provided.
Second technical problem to be solved by this invention, it is simply that a kind of replacing options using described device to carry out big flange of high-voltage cable GIS terminal is provided.
Adopting apparatus and method of the present invention, change big flange of high-voltage cable GIS terminal simple, the part of appliance related to is little, it is short to take; And owing to equipment and adnexa are without dismounting, can again put into operation, it is not necessary to carry out series of experiments and save time and cost. at once
Solving above-mentioned first technical problem, the technical solution used in the present invention is as follows:
A kind of more changing device of big flange of high-voltage cable GIS terminal, it is characterized in that: propped up support arrangement by terminator and dissection type large flange forms, terminator props up the composition structure of support arrangement: one supports little flange top board 1, corresponding to the size of high-voltage cable GIS terminal, which is provided with the perforate corresponding to high-voltage cable GIS terminal bolt head; The bottom surface supporting little flange top board is fixed with at least 3 fixing nuts 2, is screwed with screw rod 3 in fixing nut; Screw rod is additionally provided with adjusting nut 4, corresponding through hole that the lower end of screw rod has on a spike connecting plate 5, put in correspondence and be fixed on a spike connecting plate bottom surface a stay tube 6 in, the lower end of a stay tube is fixed with foot cup 7; Dissection type large flange is made up of two Semicircular half flanges, corresponding to big flange of high-voltage cable GIS terminal, connects by connector symmetry on the faying face of half flange.
Described large flange refers to the connection of connector symmetry on the faying face of half flange: has on the vertical screwed hole of faying face, the faying face of second half flange on the faying face of half flange and has connection shoulder hole, and it is entirety that connector is screwed into screwed hole by two halves Flange joint through shoulder hole.
Described two halves formula flange adopts brass material to make.
Described dissection type large flange has 2 superpositions and uses, and screw junction is diverged to 90 degree.
Solving above-mentioned second technical problem, the technical solution used in the present invention is as follows:
A kind of replacing options using described device to carry out big flange of high-voltage cable GIS terminal, comprises the following steps:
S1 installs terminator and props up support arrangement, regulates adjusting nut and makes the little flange roof plate supporting of support under high-voltage cable GIS terminal, terminal is supported, and replaces former large flange to be supported terminal sealing;
Former large flange screw is all unclamped by S2, unloads large flange;
S3 is by terminal in two two halves formula flange sleeve, and it is combined into a circular large flange with connecting screw fastening, again by terminal in another two two halves formula flange sleeve, it is combined into a circular large flange with connecting screw fastening, note making screw junction diverge to 90 degree, the large flange newly changed is fastened on GIS bin, now need to fasten screw in strict accordance with torque requirement;
S4 recovers to support after sealing function when newly changing large flange again, unclamps and removes terminator and props up support arrangement;
S5 is finally by sawed-off for former flange taking-up, and cable run just can be restored to normal operating condition.
It is support little flange bottom GIS terminal by supporting little flange top board 1 that terminator props up the effect of support arrangement, foot cup 7 contacts with bearing-surface, regulating adjusting nut 4 makes screw rod 3 elongation to support living terminal, replaces large flange to realize fixed terminal, guarantee the effect that GIS storehouse seals.
Two halves formula flange is to be combined into a complete large flange by two semicircle flanges, it is fastenedly connected by connecting screw between two semicircle flanges, owing to this type of flange is only formed by connecting by two screws, screw place is weak load-bearing point, therefore also need to add a two halves formula Ifold flange on the basis of this flange, and screw junction is diverged to 90 degree, by two common stress of flange, increase its stability under loading, in addition, in order to ensure its mechanical strength, it is prevented that the appearance again of crackle, two halves formula flange is generally adopted brass material and makes.
The invention has the beneficial effects as follows:
1, substitute mode is efficient and convenient, and the Work tool of use and equipment are simple, and involved parts are less, and replacing takes shorter;
2, do not change the running status of equipment due to Renewal process, electric property is saved from damage, therefore without carrying out electrical test, saves many man power and materials;
3, the structure of two halves formula flange makes to change convenient and swift in the future.
Accompanying drawing explanation
Fig. 1 is the attachment structure schematic diagram between existing cable termination epoxy bushing and GIS base;
More changing device-terminator that Fig. 2 is the big flange of high-voltage cable GIS terminal of the present invention props up support arrangement cross-sectional schematic;
Fig. 3 is the more changing device-dissection type large flange schematic diagram of the big flange of high-voltage cable GIS terminal of the present invention.
Below in conjunction with drawings and Examples, the present invention is further described.
Detailed description of the invention
Attachment structure between existing cable termination epoxy bushing and GIS base, as it is shown in figure 1, cable termination epoxy bushing is provided with two-stage ring-shaped step, the little ring-shaped step being located below has screwed hole, constitutes the little flange that cable termination is fixed; Ring-shaped step above is connected with bottom GIS gas storehouse through screw outside GIS gas storehouse by big flange of high-voltage cable GIS terminal (indicating diameter 320 place).
The terminator of the big flange of high-voltage cable GIS terminal more changing device that Fig. 2 show the present invention props up support arrangement, including a little flange top board 1 of support, size corresponding to high-voltage cable GIS terminal, which is provided with the perforate corresponding to high-voltage cable GIS terminal bolt head, high-voltage cable GIS terminal bolt head can be allowed during use to sink in perforate, can prevent from sliding during jack-up; The bottom surface supporting little flange top board is fixed with 4 fixing nuts 2, is screwed with screw rod 3, conveniently unloads screw rod in fixing nut; Screw rod is additionally provided with adjusting nut 4, corresponding through hole that the lower end of screw rod has on a spike connecting plate 5, put in correspondence and be fixed on a spike connecting plate bottom surface a stay tube 6 in, the lower end of a stay tube is fixed with foot cup 7.
Fig. 3 show the dissection type large flange of the big flange of high-voltage cable GIS terminal more changing device of the present invention, it is made up of two Semicircular half flanges, corresponding to big flange of high-voltage cable GIS terminal, the faying face of half flange connects by connector symmetry, specifically: have on the vertical screwed hole of faying face, the faying face of second half flange on the faying face of half flange and have connection shoulder hole, it is entirety that connector is screwed into screwed hole by two halves Flange joint through shoulder hole, and two halves formula flange adopts brass material to make.
Dissection type large flange can also use in 2 superpositions, and screw junction is diverged to 90 degree.
Use described device to carry out the replacing options of big flange of high-voltage cable GIS terminal, comprise the following steps:
S1 installs terminator and props up support arrangement, regulates adjusting nut and makes the little flange roof plate supporting of support under high-voltage cable GIS terminal, terminal is supported, and replaces former large flange to be supported terminal sealing;
Former large flange screw is all unclamped by S2, unloads large flange;
S3 is by terminal in two two halves formula flange sleeve, and it is combined into a circular large flange with connecting screw fastening, again by terminal in another two two halves formula flange sleeve, it is combined into a circular large flange with connecting screw fastening, note making screw junction diverge to 90 degree, the large flange newly changed is fastened on GIS bin, now need to fasten screw in strict accordance with torque requirement;
S4 recovers to support after sealing function when newly changing large flange again, unclamps and removes terminator and props up support arrangement;
S5 is finally by sawed-off for former flange taking-up, and cable run just can be restored to normal operating condition.
Claims (1)
1. the method that a big flange of high-voltage cable GIS terminal is changed, it is characterized in that: more changing device is propped up support arrangement by terminator and dissection type large flange forms, and terminator props up the composition of support arrangement and includes: support little flange top board (1), fixing nut (2), screw rod (3), adjusting nut (4), a spike connecting plate (5), stay tube (6) and foot cup (7);
The annexation of each composition is: the little flange top board (1) of described support is corresponding to the size of high-voltage cable GIS terminal, which is provided with the perforate corresponding to high-voltage cable GIS terminal bolt head, the bottom surface supporting little flange top board is fixed with at least 3 described fixing nuts (2), described screw rod (3) it is screwed with in described fixing nut, screw rod is additionally provided with described adjusting nut (4), the corresponding through hole that the lower end of screw rod has on a described spike connecting plate (5), put in correspondence and be fixed in described the stay tube (6) propping up spike connecting plate bottom surface, the lower end propping up stay tube is fixed with described foot cup (7),
Described dissection type large flange is made up of two Semicircular half flanges, corresponding to the former large flange of high-voltage cable GIS terminal, connects by connector symmetry on the faying face of half flange; Described dissection type large flange refers to the connection of connector symmetry on the faying face of half flange: has on the vertical screwed hole of faying face, the faying face of second half flange on the faying face of half flange and has connection shoulder hole, and it is entirety that connector is screwed into screwed hole by two halves Flange joint through shoulder hole; Two and half described flanges adopt brass material to make; Described dissection type large flange has 2 superpositions and uses, and screw junction is diverged to 90 degree;
Described method comprises the following steps:
S1 installs terminator and props up support arrangement, regulates adjusting nut and makes the little flange roof plate supporting of support under high-voltage cable GIS terminal, terminal is supported, and replaces former large flange to be supported terminal sealing;
Former large flange screw is all unclamped by S2, unloads former large flange;
S3 is by terminal in two and half flange sleeve, and it is combined into a circular large flange with connecting screw fastening, again by terminal in another two half flange sleeve, it is combined into another circular large flange with connecting screw fastening, note making screw junction diverge to 90 degree, newly change two circular large flange are fastened on GIS bin, now need to fasten screw in strict accordance with torque requirement;
S4 recovers to support after sealing function when newly changing large flange again, unclamps and removes terminator and props up support arrangement;
S5 is finally by sawed-off for former large flange taking-up, and cable run just can be restored to normal operating condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530044.0A CN103594980B (en) | 2013-10-30 | 2013-10-30 | The replacing options of big flange of high-voltage cable GIS terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530044.0A CN103594980B (en) | 2013-10-30 | 2013-10-30 | The replacing options of big flange of high-voltage cable GIS terminal |
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| Publication Number | Publication Date |
|---|---|
| CN103594980A CN103594980A (en) | 2014-02-19 |
| CN103594980B true CN103594980B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310530044.0A Active CN103594980B (en) | 2013-10-30 | 2013-10-30 | The replacing options of big flange of high-voltage cable GIS terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105680387B (en) * | 2016-04-08 | 2017-12-05 | 南京众慧网络科技有限公司 | A kind of construction site line protective devices |
| CN113437618B (en) * | 2021-06-07 | 2022-08-02 | 武汉中车长客轨道车辆有限公司 | High-efficient separated time isolating device of cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008245343A (en) * | 2007-03-23 | 2008-10-09 | Sumitomo Electric Ind Ltd | Supporting tool for superconducting cable |
| CN201256267Y (en) * | 2008-07-26 | 2009-06-10 | 徐广杰 | Special rack for cable head manufacturing |
| CN201804637U (en) * | 2010-10-11 | 2011-04-20 | 唐苑雯 | Half-flange base of pillar insulator |
| CN202763337U (en) * | 2012-08-16 | 2013-03-06 | 扬州派斯特换热设备有限公司 | Flange connecting pipe height marking tool |
| CN203522046U (en) * | 2013-10-30 | 2014-04-02 | 广东电网公司东莞供电局 | Replacing apparatus for high-voltage cable GIS terminal large flange |
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2013
- 2013-10-30 CN CN201310530044.0A patent/CN103594980B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008245343A (en) * | 2007-03-23 | 2008-10-09 | Sumitomo Electric Ind Ltd | Supporting tool for superconducting cable |
| CN201256267Y (en) * | 2008-07-26 | 2009-06-10 | 徐广杰 | Special rack for cable head manufacturing |
| CN201804637U (en) * | 2010-10-11 | 2011-04-20 | 唐苑雯 | Half-flange base of pillar insulator |
| CN202763337U (en) * | 2012-08-16 | 2013-03-06 | 扬州派斯特换热设备有限公司 | Flange connecting pipe height marking tool |
| CN203522046U (en) * | 2013-10-30 | 2014-04-02 | 广东电网公司东莞供电局 | Replacing apparatus for high-voltage cable GIS terminal large flange |
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| CN103594980A (en) | 2014-02-19 |
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