CN204215824U - A kind of overhead power transmission line composite insulator composite type strain insulator-string - Google Patents
A kind of overhead power transmission line composite insulator composite type strain insulator-string Download PDFInfo
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- CN204215824U CN204215824U CN201420588264.9U CN201420588264U CN204215824U CN 204215824 U CN204215824 U CN 204215824U CN 201420588264 U CN201420588264 U CN 201420588264U CN 204215824 U CN204215824 U CN 204215824U
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- 239000012212 insulator Substances 0.000 title claims abstract description 125
- 239000002131 composite material Substances 0.000 title claims abstract description 84
- 230000005540 biological transmission Effects 0.000 title claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 31
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 26
- 230000003373 anti-fouling effect Effects 0.000 claims abstract description 18
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 15
- 239000004917 carbon fiber Substances 0.000 claims abstract description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 abstract description 5
- 239000004020 conductor Substances 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920000260 silastic Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a kind of overhead power transmission line composite insulator composite type strain insulator-string, it comprises the connection U-shaped ring of tower (1), extend ring (2), U-shaped ring (3), yoke plate (4), right angle link plate (5), ball-eye (6), composite insulator (7), socket-clevis eye (8), 2 pairs of U-shaped rings of inner arc (9) that ring-ring connects, ball-eye (6), 1 ~ 2 antifouling porcelain insulator or glass insulator (10), socket-clevis eye (8), yoke plate (4), right angle link plate (11), adjustment plate (12), U-shaped ring (13), strain clamp (14), carbon fiber composite core wire (15), the utility model is by increasing antifouling porcelain insulator (or glass insulator) at composite insulator high-pressure side, utilize antifouling porcelain insulator or the resistant to elevated temperatures feature of glass insulator, solve the problem that overhead transmission line adopts the mechanical performance of carbon fiber composite core wire composite insulator in conductor temperature 120 ~ 180 ° of C situations to decline, guarantee the mechanical performance of composite insulator, guarantee composite insulator safe and reliable operation in the overhead transmission line adopting carbon fiber composite core wire, reach life cycle management, connect reliable, exempt from cleaning.
Description
Technical field:
The utility model relates to a kind of 35 ~ 500kV overhead power transmission line composite insulator composite type strain insulator-string, belongs to the design of electric power system overhead transmission line, operation, maintenance field.
Background technology:
According to open source literature, so far, existing 2 about the patent of composite insulator suspension string, be described below respectively:
Combined insulator string (ZL200920119357.6): it discloses a kind of combined insulator string, comprise the composite rod insulator of main part, it is characterized in that at least being provided with dish-type glass insulator at side of wire on described shape suspended compound insulator.Side of wire dish-type glass insulation quantum count is 1 ~ 6, preferably 4 ~ 6.It has the advantage of plate-shaped suspension type insulator string and composite rod insulator concurrently, both there is very high anti-pollution characteristic, very high puncture voltage can be born, good electric erosion resistance energy, radio interference level is low, leakage current is little, Lightning performance is strong, overcomes again simultaneously and adopts separately dish-type porcelain suspension insulator to occur zero resistance insulator thus cause very large impact to operation of power networks or adopt separately poor or that employing composite rod insulator Lightning performance is poor etc. the separately defect of dish-type glass suspension insulator antifouling capacity.
Suspension type composite insulator (patent No. ZL201220696317.X): it discloses a kind of suspension type composite insulator, comprise composite insulator string and disk-like glass insulator string, described composite insulator string lower end is articulated with disk-like glass insulator string top, and single dish type glass insulator is hinged up and down forms by several for described disk-like glass insulator string.Adopt bulb hinged anatomical connectivity between composite insulator string and disk-like glass insulator string, can reduce to act on the bending load on composite insulator and eccentric load, protection composite insulator.Meanwhile, disk-like glass insulator string weight is large, has the effect of weight concurrently, significantly reduces the windage yaw phenomenon that insulator string produces, avoids the generation of windage yaw discharge accident, guarantee the safety of transmission line.
The people such as State Network Electric Power Research Institute Zhang Rui publish thesis " experimental study that composite insulator is applied to carbon fiber composite core wire enlarging project " in " high voltage technique " the 10th phase in 2011.Introduce in literary composition: carbon fiber composite core wire has the advantages such as high temperature resistant, ampacity is large, allowable temperature even can more than 200 DEG C in short-term for they, if use composite insulator, when its high temperature is delivered to composite insulator high voltage end, the crimp strength performance of plug, silastic material and metal-ware bonding pad can be affected, time serious, string accident can be caused.For this reason, from theory calculate, verification experimental verification, analysis on Operating, 4 aspects such as analogue test, analyze under hot operation condition, thermo parameters method situation and the key factor affecting composite insulator runnability of composite insulator high voltage end, and according to the first #1 line of the Liaoning Area 220kV the Liao Dynasty actual motion composite insulator of 2 years electric under ACCC-713 Carbon fiber alloy wire, Mechanical Property Analysis, and in laboratory conditions, the mechanical performance result of variations of composite insulator at different tests temperature, Attention question and suggestion is answered when proposing practical application.Research shows, along with the rising of electric insulator steel foot temperature, composite insulator intensity declines gradually, can be reduced to 50% of initial strength under 180 DEG C of conditions.
From above data, published 2 two patents belong to wire suspension string aspect, some dish-type glass insulators are increased at the high-pressure side of composite insulator, object is to improve puncture voltage and electric erosion resistance energy, reducing insulator string windage yaw, do not consider when adopting carbon fiber composite core wire, conductor temperature in 180 DEG C of situations, on the impact of combined insulator string mechanical performance; So far, composite insulator strain insulator-string patent is not still had.
The strain insulator-string applied in current electrical network mainly contains following 4 kinds: porcelain insulator strain insulator-string, glass insulator strain insulator-string, composite insulator tension string and porcelain core composite insulator tension string; Guo Wang company progressively eliminates first two, main consideration first two insulator strain string needs cleaning, maintenance workload is large, in addition, composite insulator is used for large-tonnage strain insulator-string, being in careful state always, mainly considering that composite insulator is produced mechanical performance decline situation because turning round in running.
Adopt the bulb hinged anatomical connectivity of conventional between published 2 two patent requirements composite insulator strings and disk-like glass insulator string, but once to there is 220kV strain insulator-string in Yantai electrical network fall string because composite insulator is connected with dish type porcelain insulator ball pivot until Yantai electrical network and economize net off-the-line significant blackouts accident.Therefore, published 2 two patents are defective in connection, are unsuitable for the assembling of strain insulator-string.
Still there is no carbon fiber composite core wire at present in high temperature, During Process of Long-term Operation to the test report of composite suspension insulator string electric property impact or operating experience.Therefore, adopting the combination of safe and reliable composite insulator tension string and 1 antifouling porcelain insulator or glass insulator, is necessary.
Utility model content:
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and provides a kind of mechanical performance guaranteeing composite insulator, guarantee composite insulator safe and reliable operation in the overhead transmission line adopting carbon fiber composite core wire, reach life cycle management, connect reliable, to exempt from cleaning overhead power transmission line composite insulator composite type strain insulator-string.
The purpose of this utility model can be reached by following measure: a kind of overhead power transmission line composite insulator composite type strain insulator-string, it is characterized in that it comprises the U-shaped ring of connection tower, the U-shaped ring of connection tower connects prolongation ring, extend ring and connect the first U-shaped ring, first U-shaped ring connects the first yoke plate, the two ends of the first yoke plate connect one first right angle link plate respectively, each first right angle link plate all connects one first ball-eye, each first ball-eye all connects a composite insulator string, each composite insulator string all connects a socket-clevis eye, what the equal connecting ring-ring of each socket-clevis eye connected pays the U-shaped ring of inner arc, pair U-shaped ring of inner arc that each ring-ring connects all connects one second ball-eye, the antifouling porcelain insulator of each second ball-eye connection ~ sheet or glass insulator, antifouling porcelain insulator or glass insulator connect socket-clevis eye, two socket-clevis eyes are connected to the two ends of the second yoke plate, the middle part of the second yoke plate connects the second right angle link plate, second right angle link plate connects adjustment plate, adjustment plate connects the second U-shaped ring, second U-shaped ring connects strain clamp, strain clamp connects carbon fiber composite core wire.
In order to realize the purpose of this utility model further, described antifouling porcelain insulator or glass insulator are 1 ~ 2.
The utility model can produce following good effect compared with the prior art: one is adopt composite insulator in strain insulator-string, exempts from cleaning; Two is install antifouling porcelain insulator or glass insulator additional at composite insulator high-pressure side, plays heat-blocking action, guarantees the mechanical performance of composite insulator; Three are, the U-shaped ring of 2 pairs of inner arcs connected with ring-ring between composite insulator with porcelain insulator is connected, composite insulator and porcelain insulator is avoided to come off, and ball-eye, the socket-clevis eye of supporting connection gold utensil, avoid crimp, cause bulb to be deviate from from ball-and-socket, reach life cycle management design concept.Therefore the utility model has the advantage that insulator string connects reliably, exempts from cleaning, string accident can not be fallen in running, antifouling porcelain insulator or glass insulator be easy contamination in long term high temperature, low temperature alternate run, in insulation coordination design, do not need the insulation property considering antifouling porcelain insulator or glass insulator, only need to consider its heat insulating function and mechanical performance, guarantee porcelain core composite insulator string group safe and reliable operation in the overhead transmission line adopting carbon fiber composite core wire.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing, preferred forms of the present utility model is elaborated:
Embodiment: a kind of overhead power transmission line composite insulator composite type strain insulator-string (see Fig. 1), it is as follows successively to live end from earth terminal: the U-shaped ring 1 of U-1695 type connection tower, PH-12120 type extends ring 2, the U-shaped ring 3 of U-1290 type, L-12-70/400 type yoke plate 4, be divided into two again, often join by right angle link plate 5, QP-0750 type ball-eye 6, FXBW-110/120-3 type composite insulator string 7, socket-clevis eye 8, the U-shaped ring 9 of 2 pairs of inner arcs that ring-ring connects, ball-eye 6, 1 antifouling porcelain insulator of XWP2-7 type or glass insulator 10, socket-clevis eye 8 is formed, then 1 string is combined into by L-12-70/400 type yoke plate 4, then Z-12100 type right angle link plate 11 is followed successively by, DB-12100-240 type adjustment plate 12, the U-shaped ring 13 of U-1290 type, NY-300/40A type strain clamp 14 and carbon fiber composite core wire 15, above-mentioned parts can select other models as required.The U-shaped ring 1 of connection tower connects prolongation ring 2, extend ring 2 and connect U-shaped ring 3, U-shaped ring 3 connects yoke plate 4, the two ends of yoke plate 4 connect a right angle link plate 5 respectively, each right angle link plate 5 all connects a ball-eye 6, each ball-eye 6 all connects a composite insulator string 7, each composite insulator string 7 all connects a socket-clevis eye 8, the U-shaped ring 9 of 2 pairs of inner arcs that the equal connecting ring-ring of each socket-clevis eye 8 connects, the U-shaped ring 9 of 2 pairs of inner arcs that each ring-ring connects all connects a ball-eye 6, each ball-eye 6 connects 1 ~ 2 antifouling porcelain insulator or glass insulator 10, antifouling porcelain insulator or glass insulator 10 connect socket-clevis eye 8, two socket-clevis eyes 8 are connected to the two ends of yoke plate 4, connection right angle, the middle part link plate 11 of yoke plate 4, right angle link plate 11 connects adjustment plate 12, adjustment plate 12 connects U-shaped ring 13, U-shaped ring 13 connects strain clamp 14, strain clamp 14 connects carbon fiber composite core wire 15.The heat that high-pressure side carbon fiber composite core wire 15 produces at 120 ~ 180 DEG C of high temperature, by increase by 1 ~ 2 antifouling porcelain insulator of XWP2-7 type or glass insulator 10, is reduced to minimum, guarantees the electric property of composite insulator 7 by the utility model to greatest extent; Composite insulator 7 is connected with the U-shaped ring 9 of 2 pairs of inner arcs connected with ring-ring between porcelain insulator or glass insulator 10, avoids composite insulator 7 to come off with porcelain insulator or glass insulator 10.
Claims (2)
1. an overhead power transmission line composite insulator composite type strain insulator-string, it is characterized in that it comprises the connection U-shaped ring of tower (1), the connection U-shaped ring of tower (1) connects prolongation ring (2), extend ring (2) and connect the first U-shaped ring (3), first U-shaped ring (3) connects the first yoke plate, the two ends of the first yoke plate connect one first right angle link plate (5) respectively, each first right angle link plate (5) all connects one first ball-eye, each first ball-eye all connects a composite insulator string (7), each composite insulator string (7) all connects a socket-clevis eye (8), 2 pairs of U-shaped rings of inner arc (9) that the equal connecting ring-ring of each socket-clevis eye (8) connects, 2 pairs of U-shaped rings of inner arc (9) that each ring-ring connects all connect one second ball-eye, each second ball-eye connects 1 ~ 2 antifouling porcelain insulator or glass insulator (10), antifouling porcelain insulator or glass insulator (10) connect socket-clevis eye (8), two socket-clevis eyes (8) are connected to the two ends of the second yoke plate, the middle part of the second yoke plate connects the second right angle link plate (11), second right angle link plate (11) connects adjustment plate (12), adjustment plate (12) connects the second U-shaped ring (13), second U-shaped ring (13) connects strain clamp (14), strain clamp (14) connects carbon fiber composite core wire (15).
2. a kind of overhead power transmission line composite insulator composite type strain insulator-string according to claim 1, is characterized in that described antifouling porcelain insulator or glass insulator (10) are 1 ~ 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588264.9U CN204215824U (en) | 2014-10-13 | 2014-10-13 | A kind of overhead power transmission line composite insulator composite type strain insulator-string |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588264.9U CN204215824U (en) | 2014-10-13 | 2014-10-13 | A kind of overhead power transmission line composite insulator composite type strain insulator-string |
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| CN204215824U true CN204215824U (en) | 2015-03-18 |
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| CN201420588264.9U Expired - Fee Related CN204215824U (en) | 2014-10-13 | 2014-10-13 | A kind of overhead power transmission line composite insulator composite type strain insulator-string |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252927A (en) * | 2014-10-13 | 2014-12-31 | 国家电网公司 | Combined type strain insulator string with composite insulator of overhead transmission line |
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- 2014-10-13 CN CN201420588264.9U patent/CN204215824U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252927A (en) * | 2014-10-13 | 2014-12-31 | 国家电网公司 | Combined type strain insulator string with composite insulator of overhead transmission line |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20151013 |
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| EXPY | Termination of patent right or utility model |