CN104766681A - Adjustable parallel connecting interval structure of strain insulator string - Google Patents
Adjustable parallel connecting interval structure of strain insulator string Download PDFInfo
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- CN104766681A CN104766681A CN201510184284.9A CN201510184284A CN104766681A CN 104766681 A CN104766681 A CN 104766681A CN 201510184284 A CN201510184284 A CN 201510184284A CN 104766681 A CN104766681 A CN 104766681A
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Abstract
The invention discloses an adjustable parallel connecting interval structure of a strain insulator string. The adjustable parallel connecting interval structure of the strain insulator string comprises the strain insulator string, a first electrode structure and a second electrode structure, wherein a first armor clamp is arranged at a first end of the strain insulator string, a second armor clamp is arranged at a second end of the strain insulator string, the first armor clamp is connected with a high voltage side of an iron tower, the second armor clamp is connected with a low voltage side of the iron tower, the first electrode structure is connected with the first armor clamp and comprises a first discharging electrode and a first connecting sub-structure, the first discharging electrode and the first connecting sub-structure are connected through a first adjustment rotary structure, the first connecting sub-structure is connected with the first armor clamp, the second electrode structure is connected with the second armor clamp and comprises a second discharging electrode and a second connecting sub-structure, the second discharging electrode and the second connecting sub-structure are connected with a second adjustment rotary structure, and the second connecting sub-structure and the second armor clamp are connected. According to the technical scheme, convenience is brought to subsequent maintenance and overhaul work.
Description
Technical field
The present invention relates to technical field of electric power, particularly relate to the adjustable parallel connection gaps structure of a kind of strain insulator string.
Background technology
Electric power transmission line summer thunderstorm season be often struck by lightning, cause insulator arc-over, cause line tripping accident, thus affect electrical network stability and safety run.
In current technology, commonplace lightening arresting method, for installing insulator string parallel connection gaps structure additional, just applies this structure in such as 110 kilovolts ~ 220 KV transmission lines.Insulator string parallel connection gaps is a kind ofly different from traditional lightning protection measures " diverting type " protected mode; its thought allows circuit to have certain tripping rate with lightning strike; but by the insulation coordination between parallel connection gaps and insulator; reach the effect utilizing gap to connect to draw flashover passage; thus avoid insulator breakdown damage, raising reclosing success rate, avoid the generation of permanent fault.Due to features such as parallel clearance lightning protection device know-why are unique, apparatus structure is simple, easy for installation, economic performance is excellent, one of basic measures that parallel connection gaps lightning protection is protected as Lightning Protection on Power Transmission Lines, extensive use.
But in current technology, the strain insulator string parallel connection gaps physical dimension of different model is all fixing, cannot adjust after installation, cause being difficult to general.And when strain insulator string parallel connection gaps structure is installed, the strain insulator string parallel connection gaps structure of different model need be selected according to electric pressure, insulator string length and the different of (being connected from steel tower) gold utensil length, cause the strain insulator string parallel connection gaps structure model in transmission line numerous, be unfavorable for safeguarding and maintenance.
Summary of the invention
In view of this, the invention provides the adjustable parallel connection gaps structure of a kind of strain insulator string, the size of strain insulator string parallel connection gaps structure can be regulated, thus be that follow-up maintenance and service work provide conveniently.
For achieving the above object, the invention provides following technical scheme:
The adjustable parallel connection gaps structure of a kind of strain insulator string, comprising:
Strain insulator string, the first end of described strain insulator string is provided with the first gold utensil, and the second end is provided with the second gold utensil; Described first gold utensil is connected with steel tower high-pressure side, and described second gold utensil is connected with steel tower low-pressure side;
The first electrode structure be connected with described first gold utensil, described first electrode structure comprises the first sparking electrode and the first connexon structure, and described first sparking electrode regulates rotational structure to be connected by regulating length with first of angle with described first connexon structure; Described first connexon structure is connected with described first gold utensil;
And the second electrode structure to be connected with described second gold utensil, described second electrode structure comprises the second sparking electrode and the second connexon structure, and described second sparking electrode regulates rotational structure to be connected by regulating length with second of angle with described second connexon structure; Described second connexon structure is connected with described second gold utensil.
Preferably, the string number of described strain insulator string is a string, and described first gold utensil is connected with steel tower respectively by bulb ring with described second gold utensil.
Preferably, the string number of described strain insulator string is two strings, and described first gold utensil is connected with steel tower respectively by yoke plate with described second gold utensil.
Preferably, described first regulates rotational structure to be quincunx rotary connection structure, comprises the first plum blossom minor structure be connected with described first sparking electrode, and the second plum blossom minor structure be connected with described first connexon structure.
Preferably, described second plum blossom minor structure is provided with bolt, is connected with described first connexon structure by described bolt.
Preferably, described second regulates rotational structure to be quincunx rotary connection structure, comprises the 3rd plum blossom minor structure be connected with described second sparking electrode, and the 4th plum blossom minor structure be connected with described second connexon structure.
Preferably, described 4th plum blossom minor structure is provided with bolt, is connected with described second connexon structure by described bolt.
Preferably, described first rotational structure is regulated to comprise:
First drawing and pulling type minor structure and the first hinge type connexon structure be connected with described first drawing and pulling type minor structure; Described first hinge type connexon structure is connected with described first sparking electrode, and described first hinge type connexon structure is connected with described first connexon structure by described first drawing and pulling type minor structure.
Preferably, described second rotational structure is regulated to comprise:
Second drawing and pulling type minor structure and the second hinge type connexon structure be connected with described second drawing and pulling type minor structure; Described second hinge type connexon structure is connected with described second sparking electrode, and described second hinge type connexon structure is connected with described second connexon structure by described second drawing and pulling type minor structure.
Preferably, described first sparking electrode and described second sparking electrode adopt carbon steel material or aluminum alloy material respectively, and surface coverage has hot galvanized layer.
Known via above-mentioned technical scheme, compared with prior art, the invention provides the adjustable parallel connection gaps structure of a kind of strain insulator string.The adjustable parallel connection gaps structure of strain insulator string provided by the invention, the first electrode structure and the second electrode structure that are separately positioned on strain insulator string two ends constitute strain insulator string parallel connection gaps, wherein: the first electrode structure comprises the first sparking electrode and the first connexon structure, first sparking electrode and the first connexon structure regulate rotational structure to be connected by regulating length with first of angle, namely by first regulate rotational structure can regulate the first sparking electrode angle and and insulator string between distance; Second electrode structure comprises the second sparking electrode and the second connexon structure, second sparking electrode and the second connexon structure regulate rotational structure to be connected by regulating length with second of angle, namely by second regulate rotational structure can regulate the second sparking electrode angle and and insulator string between distance.Therefore, technical scheme provided by the invention, rotational structure is regulated by regulating the first adjustment rotational structure and second, strain insulator string parallel connection gaps can be regulated, namely the adjustable angle of the first sparking electrode can be realized, the adjustable angle of the second sparking electrode, the distance that can realize between the first sparking electrode and the second sparking electrode is adjustable, thus in concrete engineering application, can according to strain insulator string length, gold utensil length etc. regulate insulator string parallel connection gaps in time, highly versatile, the strain insulator string parallel connection gaps structure using numerous model in transmission line can be avoided, thus maintain easily and overhaul.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The vertical view of the adjustable parallel connection gaps structure of a kind of strain insulator string that Fig. 1 provides for the embodiment of the present invention;
The front view of the adjustable parallel connection gaps structure of a kind of strain insulator string that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the first electrode structure in the adjustable parallel connection gaps structure of strain insulator string that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the second electrode structure in the adjustable parallel connection gaps structure of strain insulator string that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment
Refer to Fig. 1 ~ Fig. 4, the vertical view of the adjustable parallel connection gaps structure of a kind of strain insulator string that Fig. 1 provides for the embodiment of the present invention; The front view of the adjustable parallel connection gaps structure of a kind of strain insulator string that Fig. 2 provides for the embodiment of the present invention; The structural representation of the first electrode structure in the adjustable parallel connection gaps structure of strain insulator string that Fig. 3 provides for the embodiment of the present invention; The structural representation of the second electrode structure in the adjustable parallel connection gaps structure of strain insulator string that Fig. 4 provides for the embodiment of the present invention.
As shown in Figure 1 to 4, the adjustable parallel connection gaps structure of strain insulator string provided by the invention, comprising:
Strain insulator string 10, the first end of described strain insulator string 10 is provided with the first gold utensil 20, second end and is provided with the second gold utensil 30; Described first gold utensil 20 is connected with steel tower high-pressure side, and described second gold utensil 30 is connected with steel tower low-pressure side;
The first electrode structure 40 be connected with described first gold utensil 20, described first electrode structure 40 comprises the first sparking electrode 401 and the first connexon structure 402, and described first sparking electrode 401 regulates rotational structure 403 to be connected by regulating length with first of angle with described first connexon structure 402; Described first connexon structure 402 is connected with described first gold utensil 20;
And the second electrode structure 50 to be connected with described second gold utensil 30, described second electrode structure 50 comprises the second sparking electrode 501 and the second connexon structure 502, and described second sparking electrode 501 regulates rotational structure 503 to be connected by regulating length with second of angle with described second connexon structure 502; Described second connexon structure 502 is connected with described second gold utensil 30.
Concrete, the adjustable parallel connection gaps structure of the strain insulator string that the embodiment of the present invention provides, described strain insulator string 10 comprises multiple strain insulator 101.
The adjustable parallel connection gaps structure of the strain insulator string that the embodiment of the present invention provides, optionally, the string number of described strain insulator string is a string, and described first gold utensil 20 is connected with steel tower respectively by bulb ring with described second gold utensil 30.
The adjustable parallel connection gaps structure of the strain insulator string that the embodiment of the present invention provides, more preferably, the string number of described strain insulator string is two strings, and described first gold utensil 20 is connected with steel tower respectively by yoke plate 60 with described second gold utensil 30.Such as, (110 ~ 220) KV transmission line strain insulator string, is generally two strings at present.
Further, the adjustable parallel connection gaps structure of the strain insulator string that the embodiment of the present invention provides, described first regulates rotational structure 403 to be quincunx rotary connection structure, concrete, comprise the first plum blossom minor structure 4031 be connected with described first sparking electrode 401, and the second plum blossom minor structure 4032 be connected with described first connexon structure 402.
Concrete, described second plum blossom minor structure 4032 is provided with bolt, is connected with described first connexon structure 402 by described bolt.
Further, the adjustable parallel connection gaps structure of the strain insulator string that the embodiment of the present invention provides, described second regulates rotational structure 503 to be quincunx rotary connection structure, comprise the 3rd plum blossom minor structure 5031 be connected with described second sparking electrode 501, and the 4th plum blossom minor structure 5032 be connected with described second connexon structure 502.
Concrete, described 4th plum blossom minor structure 5032 is provided with bolt, is connected with described second connexon structure 502 by described bolt.
Further, the adjustable parallel connection gaps structure of the strain insulator string that the embodiment of the present invention provides, described first regulates rotational structure 403, also can adopt other structures, such as, comprise:
First drawing and pulling type minor structure and the first hinge type connexon structure be connected with described first drawing and pulling type minor structure; Described first hinge type connexon structure is connected with described first sparking electrode 401, and described first hinge type connexon structure is connected with described first connexon structure 402 by described first drawing and pulling type minor structure.
Further, the adjustable parallel connection gaps structure of the strain insulator string that the embodiment of the present invention provides, described second regulates rotational structure 503, also can adopt other structures, such as, comprise:
Second drawing and pulling type minor structure and the second hinge type connexon structure be connected with described second drawing and pulling type minor structure; Described second hinge type connexon structure is connected with described second sparking electrode 501, and described second hinge type connexon structure is connected with described second connexon structure 502 by described second drawing and pulling type minor structure.
Concrete, the adjustable parallel connection gaps structure of the strain insulator string that the embodiment of the present invention provides, described first sparking electrode and described second sparking electrode adopt carbon steel material or aluminum alloy material respectively, and surface coverage has hot galvanized layer.
The adjustable parallel connection gaps structure of the strain insulator string that the embodiment of the present invention provides, when being installed on transmission line, for two string strain insulator string, can be installed according to following step:
The first step, to be arranged on steel tower low-pressure side yoke plate (by being connected with strain insulator string parallel connection gaps gold utensil coupling part) and to fix by bolted by strain insulator string low-pressure side parallel connection gaps;
Second step, to be arranged on the yoke plate of charged side (by being connected with strain insulator string parallel connection gaps gold utensil coupling part) and to fix by bolted by strain insulator string high-pressure side parallel connection gaps;
3rd step, carries out integral installation by the adjustment rotational structure (each one of high and low pressure side) in this group gap, (laterally, longitudinally) adjusts and fix, gap installation to probe into distance.
It should be noted that, the adjustable parallel connection gaps structure of the strain insulator string that the embodiment of the present invention provides, can be applicable in the transmission line of different voltage, than if be applied in the transmission line of (110 ~ 220) kilovolt.
Known via above-mentioned technical scheme, compared with prior art, the invention provides the adjustable parallel connection gaps structure of a kind of strain insulator string.The adjustable parallel connection gaps structure of strain insulator string provided by the invention, the first electrode structure and the second electrode structure that are separately positioned on strain insulator string two ends constitute strain insulator string parallel connection gaps, wherein: the first electrode structure comprises the first sparking electrode and the first connexon structure, first sparking electrode and the first connexon structure regulate rotational structure to be connected by regulating length with first of angle, namely by first regulate rotational structure can regulate the first sparking electrode angle and and insulator string between distance; Second electrode structure comprises the second sparking electrode and the second connexon structure, second sparking electrode and the second connexon structure regulate rotational structure to be connected by regulating length with second of angle, namely by second regulate rotational structure can regulate the second sparking electrode angle and and insulator string between distance.Therefore, technical scheme provided by the invention, rotational structure is regulated by regulating the first adjustment rotational structure and second, strain insulator string parallel connection gaps can be regulated, namely the adjustable angle of the first sparking electrode can be realized, the adjustable angle of the second sparking electrode, the distance that can realize between the first sparking electrode and the second sparking electrode is adjustable, thus in concrete engineering application, can according to strain insulator string length, gold utensil length etc. regulate insulator string parallel connection gaps in time, highly versatile, the strain insulator string parallel connection gaps structure using numerous model in transmission line can be avoided, thus maintain easily and overhaul.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the adjustable parallel connection gaps structure of strain insulator string, is characterized in that, comprising:
Strain insulator string, the first end of described strain insulator string is provided with the first gold utensil, and the second end is provided with the second gold utensil; Described first gold utensil is connected with steel tower high-pressure side, and described second gold utensil is connected with steel tower low-pressure side;
The first electrode structure be connected with described first gold utensil, described first electrode structure comprises the first sparking electrode and the first connexon structure, and described first sparking electrode regulates rotational structure to be connected by regulating length with first of angle with described first connexon structure; Described first connexon structure is connected with described first gold utensil;
And the second electrode structure to be connected with described second gold utensil, described second electrode structure comprises the second sparking electrode and the second connexon structure, and described second sparking electrode regulates rotational structure to be connected by regulating length with second of angle with described second connexon structure; Described second connexon structure is connected with described second gold utensil.
2. structure according to claim 1, is characterized in that, the string number of described strain insulator string is a string, and described first gold utensil is connected with steel tower respectively by bulb ring with described second gold utensil.
3. structure according to claim 1, is characterized in that, the string number of described strain insulator string is two strings, and described first gold utensil is connected with steel tower respectively by yoke plate with described second gold utensil.
4. structure according to claim 1, it is characterized in that, described first regulates rotational structure to be quincunx rotary connection structure, comprises the first plum blossom minor structure be connected with described first sparking electrode, and the second plum blossom minor structure be connected with described first connexon structure.
5. structure according to claim 4, is characterized in that, described second plum blossom minor structure is provided with bolt, is connected with described first connexon structure by described bolt.
6. structure according to claim 1, it is characterized in that, described second regulates rotational structure to be quincunx rotary connection structure, comprises the 3rd plum blossom minor structure be connected with described second sparking electrode, and the 4th plum blossom minor structure be connected with described second connexon structure.
7. structure according to claim 6, is characterized in that, described 4th plum blossom minor structure is provided with bolt, is connected with described second connexon structure by described bolt.
8. structure according to claim 1, is characterized in that, described first regulates rotational structure to comprise:
First drawing and pulling type minor structure and the first hinge type connexon structure be connected with described first drawing and pulling type minor structure; Described first hinge type connexon structure is connected with described first sparking electrode, and described first hinge type connexon structure is connected with described first connexon structure by described first drawing and pulling type minor structure.
9. structure according to claim 1, is characterized in that, described second regulates rotational structure to comprise:
Second drawing and pulling type minor structure and the second hinge type connexon structure be connected with described second drawing and pulling type minor structure; Described second hinge type connexon structure is connected with described second sparking electrode, and described second hinge type connexon structure is connected with described second connexon structure by described second drawing and pulling type minor structure.
10. the structure according to claim 1 ~ 9 any one, is characterized in that, described first sparking electrode and described second sparking electrode adopt carbon steel material or aluminum alloy material respectively, and surface coverage has hot galvanized layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510184284.9A CN104766681A (en) | 2015-04-17 | 2015-04-17 | Adjustable parallel connecting interval structure of strain insulator string |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510184284.9A CN104766681A (en) | 2015-04-17 | 2015-04-17 | Adjustable parallel connecting interval structure of strain insulator string |
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| CN201510184284.9A Pending CN104766681A (en) | 2015-04-17 | 2015-04-17 | Adjustable parallel connecting interval structure of strain insulator string |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443265A (en) * | 2016-10-13 | 2017-02-22 | 国家电网公司 | Device for simulating arrangement of strain insulator string and application method of device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004303624A (en) * | 2003-03-31 | 2004-10-28 | Furukawa Electric Co Ltd:The | Method of adjusting gap between arcing horns |
| CN102280227A (en) * | 2011-07-15 | 2011-12-14 | 山东电力集团公司烟台供电公司 | Composite insulator tension string of overhead transmission line |
| CN104361959A (en) * | 2014-12-02 | 2015-02-18 | 国家电网公司 | Disconnection-preventing parallel-connected gap device |
| CN204537776U (en) * | 2015-04-17 | 2015-08-05 | 国家电网公司 | The adjustable parallel connection gaps structure of strain insulator string |
-
2015
- 2015-04-17 CN CN201510184284.9A patent/CN104766681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004303624A (en) * | 2003-03-31 | 2004-10-28 | Furukawa Electric Co Ltd:The | Method of adjusting gap between arcing horns |
| CN102280227A (en) * | 2011-07-15 | 2011-12-14 | 山东电力集团公司烟台供电公司 | Composite insulator tension string of overhead transmission line |
| CN104361959A (en) * | 2014-12-02 | 2015-02-18 | 国家电网公司 | Disconnection-preventing parallel-connected gap device |
| CN204537776U (en) * | 2015-04-17 | 2015-08-05 | 国家电网公司 | The adjustable parallel connection gaps structure of strain insulator string |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443265A (en) * | 2016-10-13 | 2017-02-22 | 国家电网公司 | Device for simulating arrangement of strain insulator string and application method of device |
| CN106443265B (en) * | 2016-10-13 | 2019-01-22 | 国家电网公司 | A kind of device and its application method of simulation strain insulator string arrangement |
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