CN204288964U - There is the 800kV DC Insulator optimizing beveled structure - Google Patents
There is the 800kV DC Insulator optimizing beveled structure Download PDFInfo
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- CN204288964U CN204288964U CN201420668592.XU CN201420668592U CN204288964U CN 204288964 U CN204288964 U CN 204288964U CN 201420668592 U CN201420668592 U CN 201420668592U CN 204288964 U CN204288964 U CN 204288964U
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- 239000012212 insulator Substances 0.000 title claims abstract description 60
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000010931 gold Substances 0.000 claims abstract description 30
- 229910052737 gold Inorganic materials 0.000 claims abstract description 30
- 238000009413 insulation Methods 0.000 claims abstract description 26
- 238000005457 optimization Methods 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims description 10
- 230000005684 electric field Effects 0.000 abstract description 13
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Insulators (AREA)
Abstract
The utility model discloses a kind of 800kV DC Insulator with optimization beveled structure, comprise stringinsulator unit, stringinsulator unit comprises insulation bulb gold utensil, insulator string, insulation ball-and-socket gold utensil and large and small grading ring, little grading ring and insulation bulb gold utensil are positioned at insulator string side, large grading ring and insulation ball-and-socket gold utensil and are positioned at insulator string opposite side, the medium and small optimization beveled structure of the size that insulator string is made up of gamp, the first umbellule, middle umbrella and the second umbellule; Two grading rings include ring body, grading ring bracing frame and fixing and locking bolt; for opening shape; opening portion is discharging gap; can not corrode by electric field by available protecting insulator end; ensure that two grading rings can not cause distortion and displacement because of collision in the vibration of wind dance, ensure the safe and reliable operation of insulator in ± 800kV DC power transmission line.The utility model can meet well ± running environment of 800kV DC line, and protection insulator does not corrode by electric field, and saving line upkeep cost, guarantees that circuit runs reliably and with long-term.
Description
Technical field:
The utility model relates to the composite insulator string in a kind of extra-high voltage electric transmission and transformation system, particularly relates to a kind of 800kV DC Insulator with optimization beveled structure, belongs to extreme high voltage technical field.
Background technology:
Composite insulator is a very important equipment in transmission line, and all presses shielding problem to be affect a transmission line security of operation whether key factor.Problems of The Electric Field mainly its Analysis of End Electric Field of composite insulator, electric field strength on gold utensil is larger, in air oxygen detrition situation, corona phenomenon may be there is in gold utensil, therefore, need the electric field strength managing to reduce hardware end, corresponding uniform ring is installed, and then the electric field strength of hardware end is reduced.
± 800kV DC Insulator is applied in the project of Indian country grid company super high voltage direct current electricity transmission line, and its on-the-spot running environment is as follows: maximum environmental temperature: 48 degrees Celsius; Minimum ambient temperature: 0 degree; Relative humidity: 10 ~ 100%; Wind district: 4; Maximum wind velocity: 47 meter per seconds; Maximum height above sea level: 1000 meters; Gradation for surface pollution: Chong Wu district; Single string structure height: 4560MM; Singly go here and there creepage distance: 16800MM.This on-the-spot running environment need insulator have stronger filthy self-cleaning ability, can in the safe operation of Chong Wu district, the inclined ability of stronger wind resistance can be had.
Traditional grading ring and composite insulator obviously can not meet the needs of UHV transmission line, particularly can not meet ± on-the-spot running environment the requirement of 800kV direct-current ultra high voltage power grids circuits.
Utility model content:
Technical problem to be solved in the utility model is: provide a kind of and have the 800kV DC Insulator optimizing beveled structure; large and small grading ring with the use of; can not corrode by electric field by available protecting insulator end; and the assemblage gap of two pendulous string isolator can be met; ensure the phenomenon that two grading rings can not cause because of collision being out of shape, being shifted in the vibration of wind dance, thus ensure the safe and reliable operation of insulator and ± 800kV DC power transmission line.
The technical scheme that the utility model is taked for technical solution problem is:
A kind of have the 800kV DC Insulator optimizing beveled structure, comprise stringinsulator unit, described stringinsulator unit comprises insulation bulb gold utensil, little grading ring, insulator string, large grading ring and insulation ball-and-socket gold utensil, and described little grading ring and insulation bulb gold utensil are positioned at the opposite side that the side of insulator string, described large grading ring and insulation ball-and-socket gold utensil are positioned at insulator string, the medium and small optimization beveled structure of the size that described insulator string is made up of gamp, the first umbellule, middle umbrella and the second umbellule, described large grading ring comprises large grading ring ring body, large grading ring bracing frame and large grading ring fixing and locking bolt, described large grading ring ring body is provided with large ring body opening, the ring body end face of described large ring body opening both sides is spherical shape, gap between two ring body end faces is less than or equal to the diameter of 1/8 large ring body, described large grading ring bracing frame is outward extending insulated connecting piece, in different " S " type, described large grading ring fixing and locking bolt and large grading ring bracing frame are positioned at large grading ring ring body side, be fixedly connected with by rivet between described large grading ring bracing frame one end with large grading ring ring body, the other end is bolted on the insulation ball-and-socket gold utensil of composite insulator string side by large grading ring fixing and locking, described little grading ring comprises little grading ring ring body, little grading ring bracing frame and little grading ring fixing and locking bolt, described little grading ring ring body is provided with little ring body opening, the ring body end face of described little ring body opening both sides is spherical shape, gap between two ring body end faces is less than or equal to the diameter of 1/8 little ring body, described little grading ring bracing frame is outward extending insulated connecting piece, in " L " type, described little grading ring fixing and locking bolt and little grading ring bracing frame are positioned at little grading ring ring body side, described " L " type little grading ring bracing frame one end is fixedly connected with between little grading ring ring body, the other end is bolted on the insulation bulb gold utensil of composite insulator string opposite side by little grading ring fixing and locking, described stringinsulator unit is multiple, and multiple stringinsulator unit combines the 800kV DC Insulator forming and have and optimize beveled structure mutually, and the insulation bulb gold utensil of adjacent two stringinsulator units and insulation ball-and-socket gold utensil match each other and link together.
Described DC Insulator side is provided with arcing horn starting rod.
The ring part of described large grading ring and little grading ring selects YL113 aluminum alloy materials to process, and surface finish, prevents point discharge; Described large grading ring bracing frame selects that integral cast steel is zinc-plated to be formed, for large grading ring provides enough strength support; Described little grading ring bracing frame selects high-strength aluminum alloy material to process, for little grading ring provides the support of sufficient intensity.
The medium and small optimization beveled structure of the size that insulator string of the present utility model is made up of gamp, the first umbellule, middle umbrella and the second umbellule, can meet the Insulators Used requirement in heavy pollution district.Its advantage is: 1. this umbrella-shaped structure has stronger filthy self-cleaning ability, can in the safe operation of Chong Wu district; 2. because longitudinal section is less, this umbrella-shaped structure has the inclined ability of stronger wind resistance; 3. this umbrella-shaped structure has stronger resistance to mist sudden strain of a muscle and rain sudden strain of a muscle ability, and effectively can reduce the possibility of electric arc bridge network between umbrella; 4. this umbrella-shaped structure is by the three-dimensional simulation electric Field Calculation of Shenzhen Graduate School of Tsinghua University, and have passed complete set design and the type approval test of Chinese DianKeYuan, can meet ± on-the-spot running environment the requirement of 800kV direct-current ultra high voltage power grids circuits completely.
The utility model by by the large and small grading ring of two kinds of different types with the use of; electrical performance demands and the installation requirement of DC Insulator can be met completely; can not corrode by electric field by available protecting insulator end; and the assemblage gap of two pendulous string isolator can be met; ensure that two grading rings can not cause distortion, displacement because of collision in the vibration of wind dance, thus ensure the safe and reliable operation of insulator and ± 800kV DC power transmission line.
In the utility model, large grading ring and little grading ring are all designed to opening shape, and opening portion is discharging gap, when electric charge savings is too much, and can self-discharge release pressure.Meanwhile, the opening design of two size ring bodies, is conducive to the online installation and removal of grading ring, does not need to dismantle insulator, again lift the replacing that circuit just easily can realize grading ring.
The utility model is novel in design, structure is unique; well can either meet ± 800kV DC line operation demand, protection insulator end does not corrode by electric field; be convenient to again online replacing and installation; great saving line upkeep cost; and excellent material effectively can avoid corrosion; guarantee to run reliably and with long-term, there are very high market application foreground and economic results in society.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of stringinsulator unit in the utility model;
Fig. 3 is the size medium and small optimization beveled structure schematic diagram of insulator string in Fig. 2;
Fig. 4 is the structural representation of large grading ring in the utility model;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the structural representation of the medium and small grading ring of the utility model;
Fig. 7 is the right view of Fig. 6.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is further explained and illustrate:
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, a kind of have the 800kV DC Insulator optimizing beveled structure, comprise stringinsulator unit, described stringinsulator unit comprises insulation bulb gold utensil 8, little grading ring 20, insulator string 7, large grading ring 10 and insulation ball-and-socket gold utensil 9, and little grading ring 20 and insulation bulb gold utensil 8 are positioned at the opposite side that the side of insulator string 7, large grading ring 10 and insulation ball-and-socket gold utensil 9 are positioned at insulator string 7, the medium and small optimization beveled structure of size that insulator string 7 is made up of gamp 17, first umbellule 27, middle umbrella 37 and the second umbellule 47, described large grading ring 10 comprises large grading ring ring body 1, large grading ring bracing frame 2 and large grading ring fixing and locking bolt 3, large grading ring ring body 1 is provided with large ring body opening 4, the ring body end face of large ring body opening 4 both sides is spherical shape 5, gap between two ring body end faces is less than or equal to the diameter of 1/8 large ring body, large grading ring bracing frame 2 is outward extending insulated connecting piece, in different " S " type, large grading ring fixing and locking bolt 3 and large grading ring bracing frame 2 are positioned at large grading ring ring body 1 side, be fixedly connected with by rivet between large grading ring bracing frame 2 one end with large grading ring ring body 1, the other end is fixed on the insulation ball-and-socket gold utensil 9 of composite insulator string side by large grading ring fixing and locking bolt 3, described little grading ring 20 comprises little grading ring ring body 11, little grading ring bracing frame 21 and little grading ring fixing and locking bolt 31, little grading ring ring body 11 is provided with little ring body opening 41, the ring body end face of described little ring body opening 41 both sides is spherical shape 51, gap between two ring body end faces is less than or equal to the diameter of 1/8 little ring body, little grading ring bracing frame 21 is outward extending insulated connecting piece, in " L " type, little grading ring fixing and locking bolt 31 and little grading ring bracing frame 21 are positioned at little grading ring ring body 11 side, " L " type little grading ring bracing frame 21 one end is fixedly connected with between little grading ring ring body 11, the other end is fixed on the insulation bulb gold utensil 8 of composite insulator string opposite side by little grading ring fixing and locking bolt 31, stringinsulator unit is multiple, and multiple stringinsulator unit combines the 800kV DC Insulator forming and have and optimize beveled structure mutually, and the insulation bulb gold utensil 8 of adjacent two stringinsulator units and insulation ball-and-socket gold utensil 9 match each other and link together, DC Insulator side is provided with arcing horn starting rod 6.
Wherein: the ring part of large grading ring 10 and little grading ring 20 selects YL113 aluminum alloy materials to process, and surface finish, prevents point discharge; Large grading ring bracing frame 2 selects that integral cast steel is zinc-plated to be formed, for large grading ring 10 provides enough strength support; Little grading ring bracing frame 21 selects high-strength aluminum alloy material to process, for little grading ring 20 provides the support of sufficient intensity.
The medium and small optimization beveled structure of size that insulator string is made up of gamp 17, first umbellule 27, middle umbrella 37 and the second umbellule 47 in the utility model, can meet the Insulators Used requirement in heavy pollution district.Its advantage is: 1. this umbrella-shaped structure has stronger filthy self-cleaning ability, can in the safe operation of Chong Wu district; 2. because longitudinal section is less, this umbrella-shaped structure has the inclined ability of stronger wind resistance; 3. this umbrella-shaped structure has stronger resistance to mist sudden strain of a muscle and rain sudden strain of a muscle ability, and effectively can reduce the possibility of electric arc bridge network between umbrella; 4. this umbrella-shaped structure is by the three-dimensional simulation electric Field Calculation of Shenzhen Graduate School of Tsinghua University, and have passed complete set design and the type approval test of Chinese DianKeYuan, can meet ± on-the-spot running environment the requirement of 800kV direct-current ultra high voltage power grids circuits completely.
In the utility model, large grading ring 10 and little grading ring 20 are all designed to opening shape, and opening portion is discharging gap, when electric charge savings is too much, and can self-discharge release pressure.Meanwhile, the opening design of two size ring bodies, is conducive to the online installation and removal of grading ring, does not need to dismantle insulator, again lift the replacing that circuit just easily can realize grading ring.The utility model is novel in design, structure is unique; well can either meet ± 800kV DC line operation demand, protection insulator end does not corrode by electric field; be convenient to again online replacing and installation; great saving line upkeep cost; and excellent material effectively can avoid corrosion; guarantee to run reliably and with long-term, there are very high market application foreground and economic results in society.
Claims (2)
1. one kind has the 800kV DC Insulator optimizing beveled structure, comprise stringinsulator unit, it is characterized in that: described stringinsulator unit comprises insulation bulb gold utensil (8), little grading ring (20), insulator string (7), large grading ring (10) and insulation ball-and-socket gold utensil (9), described little grading ring (20) and bulb gold utensil (8) that insulate are positioned at the opposite side that the side of insulator string (7), described large grading ring (10) and ball-and-socket gold utensil (9) that insulate are positioned at insulator string (7), the medium and small optimization beveled structure of size that described insulator string (7) is made up of gamp (17), the first umbellule (27), middle umbrella (37) and the second umbellule (47), described large grading ring (10) comprises large grading ring ring body (1), large grading ring bracing frame (2) and large grading ring fixing and locking bolt (3), described large grading ring ring body (1) is provided with large ring body opening (4), the ring body end face of described large ring body opening (4) both sides is spherical shape (5), gap between two ring body end faces is less than or equal to the diameter of 1/8 large ring body, described large grading ring bracing frame (2) is outward extending insulated connecting piece, in different " S " type, described large grading ring fixing and locking bolt (3) and large grading ring bracing frame (2) are positioned at large grading ring ring body (1) side, described large grading ring bracing frame (2) one end is fixedly connected with by rivet with between large grading ring ring body (1), the other end is fixed on the insulation ball-and-socket gold utensil (9) of composite insulator string side by large grading ring fixing and locking bolt (3), described little grading ring (20) comprises little grading ring ring body (11), little grading ring bracing frame (21) and little grading ring fixing and locking bolt (31), described little grading ring ring body (11) is provided with little ring body opening (41), the ring body end face of described little ring body opening (41) both sides is spherical shape (51), gap between two ring body end faces is less than or equal to the diameter of 1/8 little ring body, described little grading ring bracing frame (21) is outward extending insulated connecting piece, in " L " type, described little grading ring fixing and locking bolt (31) and little grading ring bracing frame (21) are positioned at little grading ring ring body (11) side, described " L " type little grading ring bracing frame (21) one end is fixedly connected with between little grading ring ring body (11), the other end is fixed on the insulation bulb gold utensil (8) of composite insulator string opposite side by little grading ring fixing and locking bolt (31), described stringinsulator unit is multiple, multiple stringinsulator unit combines the 800kV DC Insulator forming and have and optimize beveled structure mutually, and the insulation bulb gold utensil (8) of adjacent two stringinsulator units and insulation ball-and-socket gold utensil (9) match each other and link together.
2. according to claim 1 have the 800kV DC Insulator optimizing beveled structure, it is characterized in that: described DC Insulator side is provided with arcing horn starting rod (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420668592.XU CN204288964U (en) | 2014-11-11 | 2014-11-11 | There is the 800kV DC Insulator optimizing beveled structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376933A (en) * | 2014-11-11 | 2015-02-25 | 国家电网公司 | 800 kV direct-current insulator with optimized umbrella-shaped structure |
| CN109346952A (en) * | 2018-11-08 | 2019-02-15 | 中国电力工程顾问集团西南电力设计院有限公司 | Ultra-high voltage converter station low-voltage direct by-pass switch circuit shock-damping structure |
-
2014
- 2014-11-11 CN CN201420668592.XU patent/CN204288964U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376933A (en) * | 2014-11-11 | 2015-02-25 | 国家电网公司 | 800 kV direct-current insulator with optimized umbrella-shaped structure |
| CN109346952A (en) * | 2018-11-08 | 2019-02-15 | 中国电力工程顾问集团西南电力设计院有限公司 | Ultra-high voltage converter station low-voltage direct by-pass switch circuit shock-damping structure |
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