CN202258577U - Six-linked 550 KN large-tonnage insulator suspension metal fittings string used for extra-high voltage DC large crossing - Google Patents
Six-linked 550 KN large-tonnage insulator suspension metal fittings string used for extra-high voltage DC large crossing Download PDFInfo
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- CN202258577U CN202258577U CN2011203056621U CN201120305662U CN202258577U CN 202258577 U CN202258577 U CN 202258577U CN 2011203056621 U CN2011203056621 U CN 2011203056621U CN 201120305662 U CN201120305662 U CN 201120305662U CN 202258577 U CN202258577 U CN 202258577U
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- 239000000725 suspension Substances 0.000 title claims abstract description 58
- 239000012212 insulator Substances 0.000 title claims abstract description 50
- 239000002184 metal Substances 0.000 title abstract 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 21
- 239000010931 gold Substances 0.000 claims description 21
- 229910052737 gold Inorganic materials 0.000 claims description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 241001125877 Gobio gobio Species 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 14
- 241001125879 Gobio Species 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 grading ring Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
A six-linked 550 KN large-tonnage insulator suspension metal fittings string used for extra-high voltage DC large crossing includes suspension metal fittings, up and down right angle suspension plates, rings, up and down suspension plates, insulator chains, a combined link plate, a suspension fixed plate and suspension wire clamps. The number of the suspension metal fittings is three; the number of the insulator chains is six; the number of the suspension wire clamps is four; leads respectively pass through the suspension wire clamps to be fixed; the up right angle suspension plate is respectively connected with the suspension metal fittings and the up suspension plate; the suspension points of the suspension metal fittings are axially parallel with the leads; the six insulator chains and the rings are respectively connected with the combined link plate; the combined link plate is connected with the down suspension plate; the down suspension plates is connected with the suspension fixed plate though the lower right angle suspension plate; and the four suspension wire clamps are fixedly arranged on the suspension fixed plate. In the utility model, the mechanical strength of the insulator suspension metal fittings string is high, the suspension string is safe and stable, energy loss of the power transmission line is minimized, the strength of the combined link plate is high, and the metal fittings connected with the combined link plate possess uniformity and interchangeability.
Description
Technical field
The utility model relates to a kind of suspension arrangement that is used for the big span line lead of extra-high voltage direct-current, relevant specifically a kind of large-tonnage insulator overhanging golden tool string that is used for the big span line lead of extra-high voltage direct-current.
Background technology
Along with socioeconomic fast development, to the also growth fast of demand of electricity consumption.But primary energy skewness and distance are far away, and the passway for transmitting electricity land used is more and more nervous.In order to address the above problem, improve transmission line capability, building more the transmission line of voltage levels, to be used for long distance power transmission as backbone network will be a kind of new solution.
Because the big crossing span of ± 800 extra-high voltage direct-currents is bigger; And lead is the high strength lead; These all have higher requirement to the suspension insulator string; And at present, general circuit with cross over the string that dangles that uses and can not satisfy ± demand that lead is hung in the big leap of 800 extra-high voltage direct-currents as double hanging point duplex or tetrad insulator string.The general electric pressure of present domestic transmission line backbone network is for exchanging 500kV and direct current ± 500kV; The string that dangles of its use is the needs that electric requirement or mechanical strength all can not satisfy the big span line of ultra high voltage, particularly can not solve ± the suspension problem of the big span line lead of 800kV extra-high voltage direct-current.
China's utility model patent 200820161815.8 has disclosed a kind of ± 800kV extra high voltage direct current transmission line suspension insulator; Comprise that low-voltage connects gold utensil, high voltage connects gold utensil, insulator, grading ring, suspension clamp; Many oidiospores lead is connected gold utensil through suspension clamp and connects with high voltage, high voltage connects gold utensil and is connected the gold utensil connection with low-voltage through several interconnective insulators; Grading ring is set on the insulator.The scheme of this patent can obviously improve electric pressure, transmission line capability and minimizing transmission line energy loss, hangs lead electric insulation and the too big problem of load but this suspension insulator can not solve the lead of the circuit of the big leap of ultra high voltage electric current.
The utility model content
The purpose of the utility model provides a kind of 6 550kN large-tonnage insulator overhanging golden tool strings that are used for the big leap of extra-high voltage direct-current, hangs the insulation of lead and reliably bears heavy load to guarantee the big leap of ultra high voltage.
The 6 550kN large-tonnage insulator overhanging golden tool strings that are used for the big leap of extra-high voltage direct-current of the utility model comprise: the hanging point gold utensil, up and down right angle link plate, ring body, up and down dangle link plate, insulator string, combination yoke plate, fixed head and suspension clamp dangle; Wherein: said hanging point gold utensil is three; Said insulator string is six; Said suspension clamp is four; Lead passes suspension clamp respectively and is fixed by suspension clamp; Last right angle link plate respectively with each hanging point gold utensil with on the link plate that dangles be connected, its hanging point is axially parallel with the lead direction; Six insulator strings are connected with the combination yoke plate respectively with ring body, and the combination yoke plate is connected with the link plate that dangles down, and the link plate that descends to dangle is connected with the fixed head that dangles through right angle link plate down; Four suspension clamps are fixed on the fixed head that dangles.
Preferably, said combination yoke plate is a kind of three changes, two combination yoke plates, becomes two through two said three in the middle of the described insulator overhanging golden tool string and makes up yoke plates suspension conductors on quad bundleds.
Preferably, each combination yoke plate comprises two yoke plate bodies that are connected, and the yoke plate body adopts double plate structure, and two yoke plates are formed by connecting through welded plate.
Preferably, be provided with shading ring in the both sides of suspension clamp.
Preferably, the gudgeon link plate of three above-mentioned hanging point gold utensils employing EB-130/128S1 types.
Preferably, described ring body comprises two relative semi-ring bodies and the bracing frame that is stretched out down mutually by this semi-ring body respectively, and bracing frame connects with the lower ends of combination yoke plate and insulator string.
Preferably, the semi-ring body is to adopt the 120mm aluminum pipe to bend to form, and the aluminum pipe wall thickness is 4.5mm; Ring body surrounds and is of a size of 2840mm * 2040mm; The orthodrome bending radius is 150mm.
Preferably, above-mentioned each junction adopts bolt to connect.
The beneficial effect of the utility model is: the utility model ± big leap of 800 extra-high voltage direct-currents is with 6 550kN large-tonnage insulator overhanging golden tool strings; Mechanical strength is high, hangs the string safety and stability, has obviously improved electric pressure, transmission line capability; And reduced the transmission line energy loss; Ring body wherein on can balanced effectively six insulators voltage and shield corona effectively, and three to become two combination yoke plate intensity high, the gold utensil that is attached thereto has uniformity and interchangeability.
In it should be understood that in the utility model scope, above-mentioned each technical characterictic of the utility model and hereinafter can mutual combination between specifically described each technical characterictic in (like embodiment), thus constitute new or optimized technical scheme.As space is limited, this tired no longer one by one stating.
Description of drawings
Fig. 1 is arranged on the overhead tower of a representative region ± big leap of 800 extra-high voltage direct-currents and arranges sketch map.
Fig. 2 is the structural representation of six or the three hanging point 550KN suspension insulator gold utensil strings of the utility model one embodiment.
Fig. 3 is the end view of Fig. 2.
Fig. 4 is the structural representation of ring body employed in figure 2.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6 is the structural representation of the combination yoke plate that is adopted among this embodiment of the utility model shown in Figure 2.
Fig. 7 is the vertical view of Fig. 6.
Embodiment
Below will combine accompanying drawing that the embodiment of the utility model is elaborated.It should be understood that the detailed description of embodiment just in order to clearly demonstrate the technical scheme of the utility model, and to should not be construed as be the restriction to the scope of the utility model.
Fig. 1 is illustrated in one and is in the extra high voltage direct current transmission line that Upper Yangtze River is crossed over its river surface, for example ± and the sketch map that sets up in the big leap high-altitude of 800kV extra high voltage direct current transmission line.Should ± the big overhead crossing engineering of 800kV extra high voltage direct current transmission line is positioned at certain regional Upper Yangtze River, is set up in the north and south bank in the Changjiang river, and the landform of north and south bank and inequality.
As shown in Figure 1; Should big cross over high-altitude sets up and comprises: the overhead tangent tower A of leap, B on the zone of two different terrain that are separately positioned on south, two sides, north; And the strain tower A ', the B ' that leave tangent tower A and B certain distance layout; Strain section length is 2985m, and span is arranged as 518m-2052m-415m.Because of two sides, crossover point north and south landform obvious difference, the two sides crossover tower adopt do not wait high scheme, its Central-South approach span to get over tower to exhale height be 221 meters, overall height is 230 meters, root is opened 46 meters; It is 233 meters that north bank crossover tower is exhaled height, and overall height is 242 meters, and root is opened 50 meters.Two sides, north and south strain tower exhales height to be 39 meters, 57 meters of overall heights.The leap arrangement of this instance is the arrangement that adopts withstand voltage tower-tangent tower-tangent tower-withstand voltage tower.
Because the big crossing span of ± 800 extra-high voltage direct-currents is bigger; And lead is the high strength lead; These all have higher requirement to the suspension insulator string; And at present general circuit with cross over the string that dangles that uses and be double hanging point duplex or tetrad insulator string, can not satisfy ± demand that lead is hung in the big leap of 800 extra-high voltage direct-currents.
The utility model adopts three hanging points, six 550kN insulator strings to hang lead, guarantees loop strength.
Fig. 2 illustrates the 6 550kN large-tonnage insulator overhanging golden tool strings that are used for the big leap of extra-high voltage direct-current of the utility model; Comprise: three hanging point gold utensils 1, upper and lower right angle link plate 5,9, ring body 2; The upper and lower link plate 6,8 that dangles; Insulator string 7, combination yoke plate 3, fixed head 10 and suspension clamp 4 dangle.Wherein: lead passes suspension clamp 4 and is fixed by suspension clamp; Last right angle link plate 5 through bolt respectively with each hanging point gold utensil 1 with on the link plate 6 that dangles be connected; Its hanging point bolt is worn to parallel with the lead direction and is along the line direction; Lead can bear the load of 550kN, and six insulator strings 7 can be connected with combination yoke plate 3 through bolt respectively with ring body 2, combination yoke plate 3 with under dangle link plate 8 be connected through bolt; Under the link plate 8 that dangles be connected through bolt with the fixed head 10 that dangles through following right angle link plate 9, four suspension clamps 4 are fixed on the fixed head 10 that dangles.Both sides at suspension clamp 4 can be provided with shading ring 12.As shown in Figures 2 and 3, the insulator string of the utility model has six, and supply the suspension of hanging point gold utensil on the link plate 6 that dangles have three, so the utility model is to adopt three hanging points, six 550kN insulator strings suspension lead, can guarantee loop strength like this.Shading ring is not generally installed at the at present general circuit string lead place of dangling; And along with the rising of electric pressure; Suspension clamp and coupled parts can produce corona, and the utility model has been installed shading ring 12 in the both sides of suspension clamp 4, and shading ring is the corona at shielding suspension wire clamp place effectively.Will be understood that above-mentioned syndeton everywhere can also be adopted as other syndetons that are equal to that those skilled in the art are familiar with except adopting above-mentioned bolt fastening structure.
In the present embodiment, 3 one kind three of yoke plate of combination becomes two combination yoke plates, it solved existing three become two yoke plate insufficient strength and be attached thereto gold utensil do not have uniformity and interchangeability, constant shortcoming is installed.Become the suspension that two combination yoke plates are realized conductors on quad bundled 11 through two three in the middle of the insulator overhanging golden tool string of the utility model.Like Fig. 6 and shown in Figure 7; Each combination yoke plate 3 of the utility model comprises two yoke plate bodies 5, through securing member for example screw bolt and nut be connected, an end of two yoke plate bodies 5 connects through bolt 13; The other end respectively is installed with a bolt 14; Yoke plate body 5 adopts double plate structure, and two yoke plates 3 are formed by connecting through welded plate 15, between two yoke plates 3 fixed gap are arranged.The intensity of the combination yoke plate 3 of the utility model is high, and the gold utensil that is attached thereto has uniformity and interchangeability.Three of the utility model becomes two combination yoke plates and adopts double plate structure; Two yoke plates 3 connect as a whole through welded plate 15; Thereby guaranteed the mechanical strength of yoke plate 3, considered the stressed complexity of combination yoke plate simultaneously, the rigidity of the bolt 14 that yoke plate is middle has improved a grade.
Three hanging point gold utensils 1 of the utility model adopt gudgeon link plate EB-130/128S1, and its hanging point bolt is worn to for along the line direction, and the tower head hanging point is avoided bending stress when guaranteeing like this that the lead windage yaw is waved.
The ring body of the utility model, its structure is as shown in Figure 5, comprises two relative semi-ring bodies 16,17 and the bracing frame 18 that is stretched out down mutually by this semi-ring body respectively, and bracing frame is connected through bolt with the lower end of combination yoke plate 3 and insulator string 7.In the present embodiment, the semi-ring body is to adopt the 120mm aluminum pipe to bend to form, and can well prevent ± bloom of the big leap transmission line of 800kV extra-high voltage direct-current suspension insulator through high-voltage electrical apparatus evidence 120mm aluminum pipe; 120mm aluminum pipe wall thickness is 4.5mm, and the pipe thickness of 4.5mm helps the ring body brake forming, has avoided ring body itself to produce discharge bloom wedge angle because of bending is wrinkling; Ring body surrounds and is of a size of the voltage of 2840mm * 2040mm on can balanced effectively six insulators.The orthodrome bending radius is 150mm, can shield corona effectively.
More than be detailed description, implement row but the utility model is not limited to these to the preferred embodiment of the utility model.It should be understood that after having read the above-mentioned teachings of the utility model, those skilled in the art can do various changes or modification to the present invention, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (8)
1. 6 550kN large-tonnage insulator overhanging golden tool strings that are used for the big leap of extra-high voltage direct-current comprise: the hanging point gold utensil, up and down right angle link plate, ring body, up and down dangle link plate, insulator string, combination yoke plate, fixed head and suspension clamp dangle; It is characterized in that:
Said hanging point gold utensil is three; Said insulator string is six; Said suspension clamp is four; Lead passes said suspension clamp respectively and is fixed by suspension clamp; Last right angle link plate respectively with each hanging point gold utensil with on the link plate that dangles be connected, its hanging point is axially parallel with the lead direction; Six insulator strings are connected with the combination yoke plate respectively with ring body, and the combination yoke plate is connected with the link plate that dangles down, and the link plate that descends to dangle is connected with the fixed head that dangles through right angle link plate down; Four suspension clamps are fixed on the fixed head that dangles.
2. the 6 550kN large-tonnage insulator overhanging golden tool strings that are used for the big leap of extra-high voltage direct-current according to claim 1; It is characterized in that preferably; Said combination yoke plate is a kind of three changes, two combination yoke plates, becomes two through two said three in the middle of the described insulator overhanging golden tool string and makes up yoke plates suspension conductors on quad bundleds.
3. insulator overhanging golden tool string according to claim 2 is characterized in that each combination yoke plate comprises two yoke plate bodies that are connected, and the yoke plate body adopts double plate structure, and two yoke plates are formed by connecting through welded plate.
4. insulator overhanging golden tool string according to claim 1 is characterized in that being provided with shading ring in the both sides of suspension clamp.
5. insulator overhanging golden tool string according to claim 1 is characterized in that three described hanging point gold utensils adopt the gudgeon link plate of EB-130/128S1 type.
6. insulator overhanging golden tool string according to claim 1 is characterized in that described ring body comprises two relative semi-ring bodies and the bracing frame that is stretched out down mutually by this semi-ring body respectively, and bracing frame connects with the lower ends of combination yoke plate and insulator string.
7. insulator overhanging golden tool string according to claim 6 is characterized in that said semi-ring body is to adopt the 120mm aluminum pipe to bend to form, and the aluminum pipe wall thickness is 4.5mm; Ring body surrounds and is of a size of 2840mm * 2040mm; The orthodrome bending radius is 150mm.
8. according to each described insulator overhanging golden tool string of claim 1 to 7, it is characterized in that described connection employing bolt connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203056621U CN202258577U (en) | 2012-01-13 | 2012-01-13 | Six-linked 550 KN large-tonnage insulator suspension metal fittings string used for extra-high voltage DC large crossing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203056621U CN202258577U (en) | 2012-01-13 | 2012-01-13 | Six-linked 550 KN large-tonnage insulator suspension metal fittings string used for extra-high voltage DC large crossing |
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| Publication Number | Publication Date |
|---|---|
| CN202258577U true CN202258577U (en) | 2012-05-30 |
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|---|---|---|---|
| CN2011203056621U Expired - Lifetime CN202258577U (en) | 2012-01-13 | 2012-01-13 | Six-linked 550 KN large-tonnage insulator suspension metal fittings string used for extra-high voltage DC large crossing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810364A (en) * | 2012-07-31 | 2012-12-05 | 中国南方电网有限责任公司超高压输电公司 | Single-suspension-point double-wire-clamp duplex V-shaped porcelain insulator string for +/-500kV common-tower double-circuit lines |
| CN103871693A (en) * | 2014-03-05 | 2014-06-18 | 国家电网公司 | 550 kN trigeminy V-shaped pendent insulator string for UHV (Ultra High Voltage) transmission line |
| CN104240865A (en) * | 2014-08-26 | 2014-12-24 | 江东金具设备有限公司 | Composite insulator triple Y-shaped overhung string |
| CN106384987A (en) * | 2015-07-27 | 2017-02-08 | 中国电力科学研究院 | Interval rod used for insulator chain |
| CN109066554A (en) * | 2018-08-27 | 2018-12-21 | 江苏捷凯电力器材有限公司 | A kind of high-intensitive six or the three hanging point wind resistance strain insulator-strings of UHVDC Transmission Lines |
| CN113871111A (en) * | 2021-09-18 | 2021-12-31 | 国网江苏省电力有限公司建设分公司 | Six-connection six-hanging suspension string for large span and large tonnage |
-
2012
- 2012-01-13 CN CN2011203056621U patent/CN202258577U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810364A (en) * | 2012-07-31 | 2012-12-05 | 中国南方电网有限责任公司超高压输电公司 | Single-suspension-point double-wire-clamp duplex V-shaped porcelain insulator string for +/-500kV common-tower double-circuit lines |
| CN102810364B (en) * | 2012-07-31 | 2016-08-17 | 中国南方电网有限责任公司超高压输电公司 | ± 500kV multiple-circuit on same tower presss from both sides duplex V-type porcelain insulating substring with single hanging point two-wire |
| CN103871693A (en) * | 2014-03-05 | 2014-06-18 | 国家电网公司 | 550 kN trigeminy V-shaped pendent insulator string for UHV (Ultra High Voltage) transmission line |
| CN103871693B (en) * | 2014-03-05 | 2016-02-10 | 国家电网公司 | UHV transmission line 550kN tri-V-type suspension insulator |
| CN104240865A (en) * | 2014-08-26 | 2014-12-24 | 江东金具设备有限公司 | Composite insulator triple Y-shaped overhung string |
| CN106384987A (en) * | 2015-07-27 | 2017-02-08 | 中国电力科学研究院 | Interval rod used for insulator chain |
| CN109066554A (en) * | 2018-08-27 | 2018-12-21 | 江苏捷凯电力器材有限公司 | A kind of high-intensitive six or the three hanging point wind resistance strain insulator-strings of UHVDC Transmission Lines |
| CN113871111A (en) * | 2021-09-18 | 2021-12-31 | 国网江苏省电力有限公司建设分公司 | Six-connection six-hanging suspension string for large span and large tonnage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200063 Wuning Road, Shanghai, No. 409, No. Patentee after: Co., Ltd of Huabei Power Design Inst., China Power Engineering Consulting Group Patentee after: Nanjing Curcuit Appliance Factory Address before: 200063 Wuning Road, Shanghai, No. 409, No. Patentee before: Huabei Power Design Inst., China Power Engineering Consulting Group Patentee before: Nanjing Curcuit Appliance Factory |
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| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
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| CX01 | Expiry of patent term |