CN111584169B - Novel bird pecking prevention composite insulator with encrypted umbrella skirt - Google Patents
Novel bird pecking prevention composite insulator with encrypted umbrella skirt Download PDFInfo
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- CN111584169B CN111584169B CN202010271794.0A CN202010271794A CN111584169B CN 111584169 B CN111584169 B CN 111584169B CN 202010271794 A CN202010271794 A CN 202010271794A CN 111584169 B CN111584169 B CN 111584169B
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- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
- H01B17/325—Single insulators consisting of two or more dissimilar insulating bodies comprising a fibre-reinforced insulating core member
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Abstract
An anti-bird pecking composite insulator with an encrypted shed comprising: composite insulator and encryption full skirt, composite insulator includes: the core rod is positioned inside the metal core and is made of glass fiber, epoxy resin and other materials; the outer side of the core rod is wrapped by the silicon rubber sheath and is positioned between the core rod and the silicon rubber umbrella skirt; the silicone rubber umbrella skirt is positioned outside the silicone rubber sheath; the hardware fittings are positioned at two ends of the insulator and are made of metal materials, so that the connection and support effects are achieved; a plurality of encrypted sheds are arranged between every two normal sheds of the composite insulator, are made of silicon rubber and are installed by using a parachute-penetrating process. According to the invention, the encrypted shed is arranged, so that birds can be prevented from pecking the core rod sheath of the composite insulator, the influence of bird pecking damage of the shed on the whole electric field intensity is reduced, the net hanging service life of the composite insulator in a multi-bird pecking area is prolonged, and the long-term safe and economic operation of a power grid system is facilitated.
Description
Technical Field
The invention relates to the technical field of insulating equipment, in particular to a novel bird pecking prevention composite insulator with an encrypted shed.
Background
With the wide use of composite insulators, the composite insulators on the power transmission lines are often pecked by birds, and the birds peck the composite insulators to cause damage to the composite insulators. The parts of the birds pecking the composite insulator are the umbrella skirt and the protective sleeve, wherein the effect of the birds pecking the protective sleeve of the insulator is more serious. Birds peck the composite insulator sheath, so that the sheath is abraded, the core rod is exposed, the end sealing is damaged, the creepage distance of the composite insulator is reduced, and the external insulation performance of the composite insulator is influenced. Under high-humidity weather conditions such as rain days, fog days and the like, partial arc discharge is easily generated between the exposed core rod and the damped sheath interface, so that the core rod generates electrochemical reaction. Under severe conditions, severe accidents such as brittle fracture easily occur. In recent years, the shed damage does not have great influence on the overall electric field intensity of the composite insulator, the bird pecking damage of the core rod sheath has great influence on the aging of the core rod and the interface of the insulator although the bird pecking damage has small influence on the electric field, and meanwhile, the bird pecking damage positions are generally distributed at the two ends of high voltage and low voltage. The invention provides a novel anti-pecking composite insulator designed by an encrypted shed, which is characterized in that the encrypted shed is additionally arranged between two large umbrellas at the high-voltage end and the low-voltage end of the traditional composite insulator respectively to slow down and prevent birds from pecking a core rod sheath, so that the safety and the stability of the composite insulator during operation are improved, and the service life of the composite insulator is prolonged.
Disclosure of Invention
The invention aims to provide a novel anti-bird pecking composite insulator designed by an encrypted shed, aiming at the problems that the traditional composite insulator cannot prevent bird pecking and the performance of the bird pecking is reduced quickly. According to the invention, the encrypted small umbrella is additionally arranged at the high-voltage end and the low-voltage end of the traditional composite insulator, so that a fragile core rod sheath which is easy to peck by birds is protected, the service life of the composite insulator hanging net in a multi-bird pecking area can be prolonged, and the long-term safe and economic operation of a power grid system is facilitated.
The invention adopts the following technical scheme:
an anti-bird pecking composite insulator with an encrypted shed comprising: composite insulator and encryption full skirt, its characterized in that:
the composite insulator includes: a core rod, a silicon rubber sheath, a conventional umbrella skirt and hardware fittings,
the core rod is positioned inside and is made of glass fiber and epoxy resin;
the silicon rubber sheath wraps the outer side of the core rod and is positioned between the core rod and the silicon rubber umbrella skirt;
the silicon rubber umbrella skirt is positioned outside the silicon rubber sheath;
the hardware fittings are positioned at two ends of the composite insulator and are made of metal materials, so that the connection and support effects are achieved;
and one or more encryption sheds are arranged between the plurality of conventional sheds at the two ends of the composite insulator in a mode of penetrating the sheds, the encryption sheds are made of silicon rubber, and the outer diameter of each encryption shed is not larger than that of the conventional sheds of the insulator.
The invention further adopts the following preferred technical scheme:
when the composite insulator is of a single-umbrella-skirt structure, namely when the conventional umbrella skirts are all in the same specification with the same outer diameter, encryption umbrella skirts are respectively arranged between the first umbrella skirt and the second umbrella skirt at the high-voltage end of the composite insulator and between the second umbrella skirt and the third umbrella skirt;
and encryption sheds are respectively arranged between the first shed and the second shed and between the second shed and the third shed at the low-voltage end of the composite insulator.
Two encryption sheds are respectively arranged between a first shed and a second shed at a high-voltage end of the composite insulator with the single shed structure, between a second shed and a third shed, between a first shed and a second shed at a low-voltage end and between the second shed and the third shed.
The distance between two adjacent encryption sheds is the same as the distance between the encryption sheds and the adjacent conventional sheds of the composite insulator.
When the composite insulator is an insulator with a double-umbrella-skirt structure, namely a conventional umbrella skirt comprises two umbrella skirts with different umbrella skirt external diameter specifications, namely a large umbrella skirt and a small umbrella skirt which are sequentially arranged at intervals; the encryption umbrella skirts are respectively arranged between the first large umbrella skirt and the first small umbrella skirt at the high-voltage end of the composite insulator and between the first small umbrella skirt and the second large umbrella skirt;
the encryption umbrella skirts are respectively arranged between the first large umbrella skirt and the first small umbrella skirt at the low-voltage end of the composite insulator and between the first small umbrella skirt and the second large umbrella skirt.
Two encryption sheds are respectively arranged between a first large shed and a first small shed at a high-voltage end of the composite insulator with the double-shed structure, between the first small shed and a second large shed, between the first large shed and the first small shed at a low-voltage end, and between the first small shed and the second large shed.
The distance between two adjacent encryption sheds is the same as the distance between the encryption sheds and the adjacent conventional sheds of the composite insulator.
When the composite insulator is of a three-shed structure, namely a conventional shed comprises sheds with three different shed outer diameter specifications, namely a large shed, a middle shed and a small shed which are arranged at intervals in sequence, and the two sides of the composite insulator are arranged in sequence according to the sequence of the large shed, the middle shed and the small shed, the encryption sheds are respectively arranged between a first large shed and a first middle shed, between a first middle shed and a first small shed and between a first small shed and a second large shed at the high-voltage end of the composite insulator of the three-shed structure;
the encryption umbrella skirts are respectively arranged between the first large umbrella skirt and the first middle umbrella skirt at the low-voltage end of the composite insulator, between the first middle umbrella skirt and the first small umbrella skirt and between the first small umbrella skirt and the second large umbrella skirt.
Two encryption sheds are respectively arranged between a first large shed and a first middle shed at a high-voltage end, between the first middle shed and a first small shed and between the first small shed and a second large shed at a high-voltage end, between the first large shed and the first middle shed at a low-voltage end, between the first middle shed and the first small shed and between the first small shed and the second large shed at the high-voltage end.
The distance between two adjacent encryption sheds is the same as the distance between the encryption sheds and the conventional sheds of the adjacent composite insulators.
The invention is used for preventing the composite insulator from being pecked by birds, can prevent the birds from pecking the core rod sheath of the composite insulator, reduces the influence of the bird pecking damage of the umbrella skirt on the whole electric field intensity, prolongs the net hanging service life of the composite insulator in a multi-bird pecking area, is further beneficial to the long-term safe and economic operation of a power grid system, and has the following advantages and effects compared with the prior art:
1. the installation is convenient, and the umbrella process of wearing is used on former composite insulator to install, and convenient and fast both can install additional the transformation to leaving factory's insulator, also can maintain additional the installation to transporting the insulator, and the suitability is extremely wide.
2. Obvious effect and strong pertinence. In combination with related electric field simulation and experimental research, damage of the bird pecking shed has little influence on electric field intensity, and the sheath part is the key point of bird pecking protection, particularly the high-voltage and low-voltage ends are higher in bird pecking frequency, so that the end-part-encrypted shed has more effect on protecting the interface and the core rod performance and preventing malignant string breakage accidents.
Drawings
Fig. 1 is a schematic view of a composite insulator with a single shed structure and an encrypted shed.
Fig. 2 is a schematic diagram of a composite insulator with a two-shed structure insulator provided with an encrypted shed.
Fig. 3 is a schematic view of a composite insulator with a three-shed structure insulator provided with an encrypted shed.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
The invention discloses a novel bird pecking prevention composite insulator with an encrypted shed, which comprises: composite insulator and encryption full skirt. Wherein, composite insulator includes: the core rod 6, the silicon rubber sheath, the silicon rubber conventional umbrella skirt and the hardware fitting.
The core rod 6 is positioned inside, and the core rod 6 is made of glass fiber, epoxy resin and the like; the outer side of the core rod 6 is wrapped by the silicon rubber sheath and is positioned between the core rod and the silicon rubber umbrella skirt; the silicone rubber umbrella skirt is positioned outside the silicone rubber sheath; the hardware fittings are located at two ends of the insulator and made of metal materials, and play a role in connection and support.
A plurality of encryption sheds 2 are arranged between every two sheds of the composite insulator, the materials of the encryption sheds 2 are the same as those of the common sheds of the insulator, and the insulator is installed by using a parachute-penetrating process.
Fig. 1 is a schematic view of a composite insulator with a single umbrella skirt structure insulator provided with an encrypted umbrella skirt 2.
As shown in fig. 1, when the insulator with the single-shed structure, that is, the conventional sheds are all of the same specification with the same outer diameter, two encryption sheds 2 are respectively installed at the sheath between the first shed 1 and the second shed 3 at the high-voltage end of the insulator, the sheath between the second shed 3 and the third shed, the sheath between the first shed and the second shed at the low-voltage end, and the sheath between the second shed and the third shed. The distance between two adjacent encryption sheds 2 is the same as the distance between the encryption sheds 2 and the conventional sheds of the adjacent composite insulators. And the outer diameter of the encryption umbrella skirt 2 is not more than that of the normal umbrella skirt of the insulator.
Fig. 2 is a schematic diagram of a composite insulator with a two-shed structure insulator provided with an encrypted shed 2.
As shown in fig. 2, when the insulator with the double-umbrella-skirt structure, that is, the conventional umbrella skirt includes two umbrella skirts with different umbrella skirt outer diameter specifications, namely a large umbrella skirt and a small umbrella skirt which are sequentially arranged at intervals; two encryption sheds 2 are respectively arranged at a sheath between a first large shed 7 and a first small shed 8 at a high-voltage end of the insulator, a sheath between the first small shed 8 and a second large shed, and a sheath between the first large shed and the first small shed at a low-voltage end of the insulator, and the sheath between the first small shed and the second large shed. The distance between two adjacent encryption sheds 2 is the same as the distance between the encryption sheds 2 and the conventional sheds of the adjacent composite insulators. And the outer diameter of the encryption umbrella skirt 2 is not more than that of the small umbrella skirt of the insulator.
Fig. 3 is a schematic view of a composite insulator with a three-shed structure insulator provided with an encrypted shed 2.
As shown in fig. 3, for an insulator with a three-shed structure, that is, a conventional shed includes three sheds with different external diameter specifications, namely a large shed, a medium shed and a small shed, which are sequentially arranged at intervals, and when two sides of the composite insulator are sequentially arranged according to the sequence of the large shed, the medium shed and the small sheds, two encryption sheds 2 are respectively arranged at a sheath between the first large shed 9 and the first medium shed 10 at a high-voltage end of the insulator, at a sheath between the first medium shed 10 and the first small shed 11 and at a sheath between the first small shed 11 and the second large shed, at a sheath between the first large shed and the first medium shed at a low-voltage end, at a sheath between the first medium shed and the first small shed and at a sheath between the first small shed and the second large shed. The distance between two adjacent encryption sheds 2 is the same as the distance between the encryption sheds 2 and the adjacent normal sheds of the composite insulator. And the outer diameter of the encryption umbrella skirt 2 is not more than that of the small umbrella skirt of the insulator.
The newly-added encrypted umbrella skirt 2 can effectively prevent birds from pecking the core rod sheaths at the high-voltage and low-voltage ends, is more convenient to mount compared with thickened sheaths, is suitable for mounting and protecting composite insulators in transportation, and is wider in application range. Meanwhile, in the recommended installation quantity, the overall creepage distance is increased, and the variation of the overall electric field intensity of the composite insulator after bird pecking on other umbrella skirts is also reduced.
Generally, in order to reduce the rain flash and pollution accumulation performance reduction caused by the excessive density of the umbrella skirt, the voltage grade of the insulator installed by the method is recommended to be more than 110 kV.
Generally, after the recommended external composite insulator type is additionally provided with the encryption umbrella skirt, a rain flashover and pollution flashover test is carried out to verify the electrical performance of the composite insulator.
While the best mode for carrying out the invention has been described in detail and illustrated in the accompanying drawings, it is to be understood that the same is by way of illustration and example only and is not to be taken by way of limitation.
Claims (7)
1. An anti-bird pecking composite insulator with an encrypted shed comprising: composite insulator and encryption full skirt, its characterized in that:
the composite insulator includes: a core rod, a silicon rubber sheath, a first umbrella skirt and hardware fittings,
the core rod is positioned inside and is made of glass fiber and epoxy resin;
the silicon rubber sheath wraps the outer side of the core rod and is positioned between the core rod and the silicon rubber umbrella skirt;
the silicon rubber umbrella skirt is positioned outside the silicon rubber sheath;
the hardware fittings are positioned at two ends of the composite insulator and are made of metal materials, so that the connection and support effects are achieved;
arranging one or more encryption sheds between a plurality of first-class sheds at two ends of the composite insulator in a mode of umbrella penetration, wherein the encryption sheds are made of silicon rubber, and the outer diameter of each encryption shed is not larger than that of the first-class sheds of the insulator;
the distance between two adjacent encryption sheds is the same as the distance between the encryption sheds and the first class sheds of the adjacent composite insulators.
2. The anti-bird pecking composite insulator with the encryption shed as claimed in claim 1, wherein:
when the composite insulator is of a single-umbrella-skirt structure, namely the first-class umbrella skirts are all in the same specification with the same outer diameter, encryption umbrella skirts are respectively arranged between the first umbrella skirt and the second umbrella skirt at the high-voltage end of the composite insulator and between the second umbrella skirt and the third umbrella skirt;
and encryption sheds are respectively arranged between the first shed and the second shed and between the second shed and the third shed at the low-voltage end of the composite insulator.
3. The anti-bird pecking composite insulator with the encryption shed as claimed in claim 2, wherein:
two encryption sheds are respectively arranged between a first shed and a second shed at a high-voltage end of the composite insulator with the single shed structure, between a second shed and a third shed, between a first shed and a second shed at a low-voltage end and between the second shed and the third shed.
4. The anti-bird pecking composite insulator with the encryption shed as claimed in claim 1, wherein:
when the composite insulator is an insulator with a double-umbrella-skirt structure, namely the first-class umbrella skirt comprises two umbrella skirts with different umbrella skirt external diameter specifications, namely a large umbrella skirt and a small umbrella skirt which are sequentially arranged at intervals; the encryption umbrella skirts are respectively arranged between the first large umbrella skirt and the first small umbrella skirt at the high-voltage end of the composite insulator and between the first small umbrella skirt and the second large umbrella skirt;
the encryption umbrella skirts are respectively arranged between the first large umbrella skirt and the first small umbrella skirt at the low-voltage end of the composite insulator and between the first small umbrella skirt and the second large umbrella skirt.
5. The anti-bird pecking composite insulator with the encryption shed as claimed in claim 4, wherein:
two encryption sheds are respectively arranged between a first large shed and a first small shed at a high-voltage end of the composite insulator with the double-shed structure, between the first small shed and a second large shed, between the first large shed and the first small shed at a low-voltage end, and between the first small shed and the second large shed.
6. The anti-bird pecking composite insulator with the encryption shed as claimed in claim 1, wherein:
when the composite insulator is of a three-shed structure, namely a first shed comprises three sheds with different shed outer diameter specifications, namely a large shed, a middle shed and a small shed which are arranged at intervals in sequence, and the two sides of the composite insulator are arranged in sequence according to the sequence of the large shed, the middle shed and the small sheds, the encryption sheds are respectively arranged between the first large shed and the first middle shed, between the first middle shed and the first small shed and between the first small shed and the second large shed at the high-voltage end of the composite insulator of the three-shed structure;
the encryption umbrella skirts are respectively arranged between the first large umbrella skirt and the first middle umbrella skirt at the low-voltage end of the composite insulator, between the first middle umbrella skirt and the first small umbrella skirt and between the first small umbrella skirt and the second large umbrella skirt.
7. The anti-bird pecking composite insulator with the encryption shed as claimed in claim 6, wherein:
two encryption sheds are respectively arranged between a first large shed and a first middle shed at a high-voltage end, between the first middle shed and a first small shed and between the first small shed and a second large shed at a high-voltage end, between the first large shed and the first middle shed at a low-voltage end, between the first middle shed and the first small shed and between the first small shed and the second large shed at the high-voltage end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010271794.0A CN111584169B (en) | 2020-04-08 | 2020-04-08 | Novel bird pecking prevention composite insulator with encrypted umbrella skirt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010271794.0A CN111584169B (en) | 2020-04-08 | 2020-04-08 | Novel bird pecking prevention composite insulator with encrypted umbrella skirt |
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| CN111584169A CN111584169A (en) | 2020-08-25 |
| CN111584169B true CN111584169B (en) | 2022-02-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5490334B1 (en) * | 2013-07-25 | 2014-05-14 | 三菱電機株式会社 | Polymer hulls and lightning arresters |
| CN108735401A (en) * | 2018-05-21 | 2018-11-02 | 国网河南省电力公司电力科学研究院 | A kind of anti-unfirmly closing hard composite insulator of anti-birds droppings |
| CN208607979U (en) * | 2018-05-21 | 2019-03-15 | 国网河南省电力公司电力科学研究院 | A kind of hard sheath and full skirt composite insulator |
| CN210073487U (en) * | 2019-05-30 | 2020-02-14 | 天津市新玻电力复合绝缘子制造股份有限公司 | Composite insulator for preventing bird pecking |
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2020
- 2020-04-08 CN CN202010271794.0A patent/CN111584169B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5490334B1 (en) * | 2013-07-25 | 2014-05-14 | 三菱電機株式会社 | Polymer hulls and lightning arresters |
| CN108735401A (en) * | 2018-05-21 | 2018-11-02 | 国网河南省电力公司电力科学研究院 | A kind of anti-unfirmly closing hard composite insulator of anti-birds droppings |
| CN208607979U (en) * | 2018-05-21 | 2019-03-15 | 国网河南省电力公司电力科学研究院 | A kind of hard sheath and full skirt composite insulator |
| CN210073487U (en) * | 2019-05-30 | 2020-02-14 | 天津市新玻电力复合绝缘子制造股份有限公司 | Composite insulator for preventing bird pecking |
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