CN104682314A - Pre-twisted rotatable lightning protection device - Google Patents
Pre-twisted rotatable lightning protection device Download PDFInfo
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- CN104682314A CN104682314A CN201510107228.5A CN201510107228A CN104682314A CN 104682314 A CN104682314 A CN 104682314A CN 201510107228 A CN201510107228 A CN 201510107228A CN 104682314 A CN104682314 A CN 104682314A
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- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical class ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 8
- 239000007769 metal material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 10
- 239000004020 conductor Substances 0.000 abstract 2
- 230000008014 freezing Effects 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000703 anti-shock Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a pre-twisted rotatable lightning protection device. The device comprises a pre-twisted armor rod (1), an inner hoop (2), two inclined spring type lightning conductors (3), an anti-vibration hammer or whip (4), an outer hoop (5), a modified chloroprene rubber pad (6), a screw hole moving winch (7), a bolt (11) with an opening pin, a freezing rain shielding cover (9), and the like. The device adopts a pre-twisted type, prevents slippage, is rotatable and self-balanced, prevents deflection of the lightning conductors, is wider in protective range and good in lightning protection effect, and prevents ice rain; moreover, the phenomenon that the inner hoop is blocked to cause the loss a rotating function is avoided, and yarns and wires are prevented from being broken.
Description
Technical field:
The present invention relates to the preformed rotatable lightning protection device of the one being suitable for 35kV and above overhead transmission line, belong to the design of electric power system overhead transmission line, operation, maintenance field.
Background technology:
According to open source literature, so far, existing 4 patents about self-balancing (rotatable) lightning protection device and paper, be described below respectively:
1, transmission line self-balance earth wire lightning arrestor (application number CN200820068549.4) feature is: comprise lightning-arrest shank, ground wire wire clamp, holding screw and balancing frame; Centered by ground wire wire clamp, be fixed on the lightning-arrest shank of ground wire wire clamp the right and left and holding screw forms a kind of symmetrical structure by symmetry, holding screw is used for fastening ground wire wire clamp, and ground wire wire clamp lower end is connected with balancing frame.This patent shortcoming is: one is, the lightning rod of this structure installs and bothers very much, and skilled trackman on average can only install a base for each person every day.Its reason is, workman installs lightning rod with lightning rod on ground wire, and after adjusting angle, gets back on shaft tower, ground wire loses the effect of people's gravity, stress changes, and ground wire reverses, and lightning rod and then reverses, workman obtains the adjustment of outlet again, and so forth, workload is very large, and is difficult to adjust to desirable angle; Two are, the local stress of contact is concentrated, the easily broken stock of lightning conducter, mounted disconnected stock, broken string phenomenon have occurred.
2, Clothoid type self-balancing anti-shock arrester (application number CN201220021733.X) feature is: be made up of left and right self-balancing base, left and right needle body, counterweight and ground wire chuck, left and right self-balancing base is connected together by the upper hinge on top, left and right needle body is separately fixed on the lateral wall of left and right self-balancing base, the lower end of left self-balancing base is fixed on the middle part of right self-balancing base by fastening bolt, and counterweight is arranged on the lower end of the support arm at the right compensating groove two ends of the shape of falling U by down hinge; Ground wire chuck is sandwiched in ground clamp grooving by left and right self-balancing base, and left and right self-balancing base, left and right needle body can around ground clamp interplanting relative motions together with counterweight.Ground wire chuck is made up of two semi-circular axle clamp plates, is coated with conductive rubber at the inwall of two semi-circular axle clamp plates.This lightning rod can not overturn along with ground wire upset, can not remain specific angle; Because the feature of its patent requirements (2) is, ground wire chuck is fixedly formed by four bolts of two semi-circular axle clamp plates by rear and front end, and bolt, nut easily loosen because of ground wire Long-term Vibration and even drop, thus causes ground wire chuck generation slippage; In addition, left and right needle body is horizontal arrangement, and lightning protection scope is little; Do not provide the symmetrical left and right needle body of level and the mechanical relationship of counterweight, the left and right needle body of not consideration level is when returning back to vertical and the safe distance of wire; Counterweight only plays the effect that left and right needle body is horizontal arrangement, does not play the effect of stockbridge damper.In addition, this patent does not possess anti-sleet function, once be frozen by sleet, block, just loses convolution, Self-balancing, thus lightning conducter may be made to break stock broken string.3, self-balancing anti-shock arrester (application number CN201420139797.9) feature is: comprise a connector be in the form of a ring set on lightning conducter, and there is a lightning rod outer wall both sides of described connector respectively level connection joint; Described two lightning rods are all fixedly connected on the lateral wall of connecting ring by one end, and connector is tightly placed on lightning conducter; Lightning rod and lightning conducter are mutually vertical.This utility model makes whole device keep self-balancing by the design of ball bearing.This patent shortcoming is: one is, two lightning rods of horizontal arrangement are waved in process at strong wind weather or wire icing, from the horizontal by the angle of 0 °, cannot even pass round thunder line axial-rotation, so that the spacing of lightning rod and wire may be greater than electrical safety distance; Two are, mounted lightning conducter to put band ball bearing " connector in the form of a ring ".In addition, this patent does not possess anti-sleet function yet, once be frozen by sleet, block, just loses convolution, Self-balancing, thus lightning conducter may be made to break stock broken string.
4, the paper (Shen Zhiheng that " earth wire of power transmission line installed the anti-shielding effect analysis of horizontal side to hour hand "; electrical engineering institute of Zhejiang University; " high voltage technique " magazine; 38th volume the 4th phase; on April 30th, 2012) think: " installing horizontal side can have a negative impact to the mechanical performance of ground wire after hour hand; horizontal side is limited to the shielding protected effect of hour hand; the scope of application is narrower; limit its application in transmission line lightning protection, this lightning protection measures need further to improve with perfect ".This article is thought " having a negative impact ", is for not pivotal lightning rod; " horizontal side is limited to the shielding protected effect of hour hand " is for air terminal length 0.2 ~ 0.6m.State Grid Corporation of China's electricity [2011] No. 44 civilization that change really suspend the installation of all kinds of horizontal hour hand, remove mounted rigidity level side direction hour hand simultaneously, carry out the electric property of horizontal side to hour hand and the research assessment of mechanical property comprehensively.
Summary of the invention:
The object of the invention is to overcome the deficiency of above-mentioned prior art and provide a kind of preformed antiskid to move, rotatable self-balancing; anti-lightning rod deflects, protection range is large, anti-lightning strike effective; ice-rain proof; avoid blocking interior hoop and lose revolute function, avoid the preformed rotatable lightning protection device of one of disconnected stock broken string phenomenon.
Object of the present invention can be reached by following measure: a kind of preformed rotatable lightning protection device, it comprises lightning conducter, it is characterized in that lightning conducter overcoat has interior hoop, modified chloroprene rubber pad is provided with between lightning conducter and interior hoop, interior hoop is made up of 2 pairs of symmetrical fixtures, interior hoop upper, lower end adopts bolted respectively, be fixed in interior hoop with the nut of bolt matching, interior hoop is provided with longitudinal hole, preformed the protect lines identical with longitudinal hole quantity are bored a hole and mistake, then be wrapped on lightning conducter, outer hoop is provided with outside interior hoop, outer hoop is made up of 2 pairs of symmetrical fixtures, outer hoop top is provided with and hides sleet cover, the upper end of the fixture that 2 pairs of outer hoop are symmetrical is moved strand by screw and is hinged together, interior hoop surrounds by its lower end, and adopt the bolted of band opening pin, 1 oblique spring lightning rod is respectively installed in the both sides, upper end of outer hoop, oblique spring lightning rod is vertical with lightning conducter, it is 15 ~ 55 ° with the angle α of horizontal direction, the lower end of outer hoop connects stockbridge damper or spiral vibration rod.
In order to realize object of the present invention further, described interior hoop is provided with 4 ~ 8 longitudinal holes, and preformed to protect lines identical with the quantity of longitudinal hole.
In order to realize object of the present invention further, horn mouth is established at described longitudinal hole two ends.
In order to realize object of the present invention further, the diameter of described oblique spring lightning rod is 3 ~ 6mm, length is 0.6 ~ 2.5m.
In order to realize object of the present invention further, described interior hoop and outer hoop are made up of different metal materials respectively.
The present invention can produce following good effect compared with the prior art: the present invention is provided with and preformedly protects lines 1, guarantees that the interior hoop 2 be installed on lightning conducter 10 straight skidding does not occur; , and 2 oblique spring lightning rods 3 of plumb line symmetry vertical with lightning conducter 10 are installed, the around shocking both outside anti-transmission line above outer hoop 5, the direct lightning strike again inside anti-transmission line above the around shocking of (between two ground wires) and lightning conducter 10; Oblique spring lightning rod 3 length is that 0.6 ~ 2.5m(can according to the comprehensive value of spacing of electric pressure and wire and ground wire), oblique spring lightning rod 3 is from the horizontal by 15 ~ 55 ° of angles, and protection range is large; Modified chloroprene rubber pad 6, stockbridge damper or spiral vibration rod 4 and spring lightning rod 3 have absorb that ground wire aeolian vibration produces energy, reduce the dynamic bending strain of lightning conducter 10 local, avoid ground wire to occur disconnected stock broken string phenomenon; Another effect of stockbridge damper or spiral vibration rod 4 according to equalising torque, and considers coefficient of safety, and after strong wind weather or wire icing are waved, 2 oblique lightning rods 3 are all from the horizontal by the angle being not less than 0 °.Interior hoop 2 and outer hoop 5 are preferably made up of different metal materials respectively, and the coefficient of friction between should guaranteeing is enough little, relatively rotate can make 360 ° of axis.
More than comprehensive, the present invention be have that preformed antiskid moves simultaneously, the deflection of rotatable self-balancing anti-lightning rod, the long protection range of oblique lightning rod are large, the anti-icing rainfall pattern of outer hoop is avoided blocking interior hoop and lost revolute function and modified chloroprene rubber pad, stockbridge damper, the common vibrationproof of spring lightning rod and to break the lightning rod of 6 kinds of functions such as stock.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the preformed structural representation protecting lines and interior hoop of the present invention;
Fig. 4 is the A-A cutaway view of Fig. 3;
Fig. 5 is the B-B cutaway view of Fig. 3.
Embodiment: preferred forms of the present invention is elaborated below in conjunction with accompanying drawing:
Embodiment: a kind of preformed rotatable lightning protection device is see Fig. 1-Fig. 5, it comprises lightning conducter 10, be wound with outside lightning conducter 10 and preformedly protect lines 1, lightning conducter 10 overcoat has interior hoop 2, is provided with modified chloroprene rubber pad 6 between lightning conducter 10 and interior hoop 2, and interior hoop 2 is made up of 2 pairs of symmetrical fixtures, modified chloroprene rubber pad 6 and lightning conducter 10 are surrounded, the upper and lower end of interior hoop 2 adopts bolt 8 fastening respectively, and the nut supporting with bolt 8 is fixed in interior hoop 2, stops nut because of vibration obscission; Interior hoop 2 is provided with 4 ~ 8 longitudinal holes, and preformed the protect lines 1 identical with longitudinal hole quantity are bored a hole and mistake, are then wrapped on lightning conducter 10, avoid the axial displacement of interior hoop 2; Horn mouth is established at longitudinal hole two ends, preformedly protects lines 1 in order to avoid damage.Be provided with outer hoop 5 outside interior hoop 2, outer hoop 5 is made up of 2 pairs of symmetrical fixtures, hoop 2 in both wings cover, and outer hoop 5 top is provided with and hides sleet cover 9, in case interior hoop 2 and outer hoop 5 are frozen by ice rain, block so that cannot be turned round; The upper end of the fixture that 2 pairs of outer hoop 5 are symmetrical is moved strand 7 by screw and is hinged together, and its lower end is enclosed 2-in-1 for interior hoop, and adopts the bolt 11 of band opening pin fastening, avoids bolt, nut to come off problem because of vibration; Interior hoop 2 and outer hoop 5 are preferably made up of different metal materials respectively, and the coefficient of friction between guaranteeing is enough little, relatively rotate can make 360 ° of axis.1 oblique spring lightning rod 3 is respectively installed in the both sides, upper end of outer hoop 5, and oblique spring lightning rod 3 is 0.6 ~ 2.5m(according to the comprehensive value of spacing of electric pressure and wire and ground wire by diameter 3 ~ 6mm, length) stainless steel wire make; The plane that 2 lightning rods 3 are formed is orthogonal with lightning conducter 10, namely vertical with lightning conducter 10, and oblique spring lightning rod 3 is 15 ~ 55 ° with the angle α of horizontal direction.Stockbridge damper or spiral vibration rod 4 are installed in the lower end of outer hoop 5, the effect of stockbridge damper or spiral vibration rod 4 is, one is and modified chloroprene rubber pad 6 and spring lightning rod 3 acting in conjunction, have absorb that ground wire aeolian vibration produces energy, reduce the dynamic bending strain of lightning conducter 10 local, avoid ground wire that disconnected stock broken string phenomenon occurs; Two is according to equalising torque, and considers coefficient of safety, and after strong wind weather or wire icing are waved, 2 oblique lightning rods 3 are all from the horizontal by the angle being not less than 0 °.
Assuming that the oblique lightning rod 3 weight 0.33kg of stainless steel wire diameter 6mm, length 1.5m, from the horizontal by 45° angle, when 1 oblique spring lightning rod 3 counterclockwise or turn clockwise 45 ° time, its moment M
1=0.33 × 0.75m=0.25kg.m, another 1 oblique spring lightning rod 3 is positioned on plumb line, does not produce moment, get the structure height 0.25m of stockbridge damper or spiral vibration rod 4, according to principle of moment balance, weight=the 0.25/0.25m=1.0kg(of stockbridge damper or spiral vibration rod 4 does not consider interior hoop, frictional force between outer hoop), consider that blast produces the unsteadiness of dynamic loads on ground wire, get the ratio of coefficient of safety 2.0(and dynamic loads and static load), and to correspond to the differently stockbridge damper of line style number or the substance of spiral vibration rod 4 be 2.0 ~ 6.0kg, can guarantee to wave period at strong wind weather or wire icing, 2 oblique spring lightning rods 3 are all from the horizontal by the angle being not less than 0 °.
Above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that the common engineers and technicians in this area make technical scheme of the present invention and improvement, all should fall in protection range that claims of the present invention determine.
Claims (5)
1. a preformed rotatable lightning protection device, it comprises lightning conducter (10), it is characterized in that lightning conducter (10) overcoat has interior hoop (2), modified chloroprene rubber pad (6) is provided with between lightning conducter (10) and interior hoop (2), interior hoop (2) is made up of 2 pairs of symmetrical fixtures, interior hoop (2) upper, lower end adopts bolt (8) fastening respectively, the nut supporting with bolt (8) is fixed in interior hoop (2), interior hoop (2) is provided with longitudinal hole, preformed the protect lines (1) identical with longitudinal hole quantity are bored a hole and mistake, then be wrapped on lightning conducter (10), outer hoop (5) is provided with outside interior hoop (2), outer hoop (5) is made up of 2 pairs of symmetrical fixtures, outer hoop (5) top is provided with and hides sleet cover (9), the upper end of the fixture that 2 pairs of outer hoop (5) are symmetrical is hinged together by the dynamic strand (7) of screw, interior hoop (2) surrounds by its lower end, and adopt the bolt (11) of band opening pin fastening, 1 oblique spring lightning rod (3) is respectively installed in the both sides, upper end of outer hoop (5), oblique spring lightning rod (3) is vertical with lightning conducter (10), it is 15 ~ 55 ° with the angle α of horizontal direction, the lower end of outer hoop (5) connects stockbridge damper or spiral vibration rod (4).
2. the preformed rotatable lightning protection device of one according to claim 1, is characterized in that described interior hoop (2) is provided with 4 ~ 8 longitudinal holes, and preformed to protect lines (1) identical with the quantity of longitudinal hole.
3. the preformed rotatable lightning protection device of one according to claim 1 and 2, is characterized in that horn mouth is established at described longitudinal hole two ends.
4. the preformed rotatable lightning protection device of one according to claim 1, is characterized in that the diameter of described oblique spring lightning rod (3) is 3 ~ 6mm, length is 0.6 ~ 2.5m.
5. the preformed rotatable lightning protection device of one according to claim 1, is characterized in that described interior hoop (2) and outer hoop (5) are made up of different metal materials respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107228.5A CN104682314A (en) | 2015-03-12 | 2015-03-12 | Pre-twisted rotatable lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107228.5A CN104682314A (en) | 2015-03-12 | 2015-03-12 | Pre-twisted rotatable lightning protection device |
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| Publication Number | Publication Date |
|---|---|
| CN104682314A true CN104682314A (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510107228.5A Pending CN104682314A (en) | 2015-03-12 | 2015-03-12 | Pre-twisted rotatable lightning protection device |
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| CN (1) | CN104682314A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898989A (en) * | 2017-03-29 | 2017-06-27 | 华北电力科学研究院有限责任公司 | The ground line side pin and ground wire of anti-ice-flashing broken string |
| CN107768983A (en) * | 2016-08-16 | 2018-03-06 | 深圳带路科技有限公司 | One kind shield line lightning rod |
| CN112928724A (en) * | 2021-01-26 | 2021-06-08 | 芜湖市凯鑫避雷器有限责任公司 | High-safety combined lightning arrester |
-
2015
- 2015-03-12 CN CN201510107228.5A patent/CN104682314A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768983A (en) * | 2016-08-16 | 2018-03-06 | 深圳带路科技有限公司 | One kind shield line lightning rod |
| CN106898989A (en) * | 2017-03-29 | 2017-06-27 | 华北电力科学研究院有限责任公司 | The ground line side pin and ground wire of anti-ice-flashing broken string |
| CN112928724A (en) * | 2021-01-26 | 2021-06-08 | 芜湖市凯鑫避雷器有限责任公司 | High-safety combined lightning arrester |
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Application publication date: 20150603 |