CN204360853U - The insulator string that a kind of anti-graphite bomb destroys - Google Patents
The insulator string that a kind of anti-graphite bomb destroys Download PDFInfo
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- CN204360853U CN204360853U CN201520094169.8U CN201520094169U CN204360853U CN 204360853 U CN204360853 U CN 204360853U CN 201520094169 U CN201520094169 U CN 201520094169U CN 204360853 U CN204360853 U CN 204360853U
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Abstract
The utility model discloses the insulator string that a kind of anti-graphite bomb destroys, comprise insulator string main body (1); Wherein, be respectively equipped with a circle injection pipe (3) at the two ends of insulator string main body (1), the arc-extinguishing tube (301) that described injection pipe (3) is cascaded successively by several forms; Be provided with in the inside of insulator string main body (1) and be made up of some sections of arc extinguishing passages (201) and from top to bottom in the arc extinguishing path (2) of Z-shaped circulation arrangement; Each section of described arc extinguishing passage is all placed with two arc extinguishing tubules (203), is provided with one and leads arc ball (202) between these two arc extinguishing tubules (203).The utility model structure is simple, reasonable in design, and arc extinguishing ability is strong, and working stability is reliable, and count enable, be convenient to later maintenance, replacing.
Description
Technical field
The utility model relates to a kind of lightning protection device of transmission line, has particularly related to the insulator string that a kind of anti-graphite bomb destroys.
Background technology
At present, daily life and produce very high to the dependency degree of electric flux, once not have electricity or have a power failure for a long time, a lot of electrical equipment, production equipment all can not normally run, and have had a strong impact on the life of people.And electric flux is mainly transported to each place by transmission line.
Thunder and lightning is the key factor affecting power transmission line safety, and occupying the first place of line fault tripping operation for a long time, is the natural process of atmospheric events, also uncontrollable so far.But we by analyzing normal accident of sending out, can find thunderbolt rule, strengthen to guard against.As being in, lofty mountains and steep hills or the shaft tower of summit, be in pool or near reservoir transmission line, cross over the mountain ridge or rivers and lakes shaft tower and be arranged on the high shaft tower of earth resistance and rock column foot and power transmission line etc. are all subject to thunderbolt to destroy emphasis.
Thunder and lightning strike can bring multi-form damage and fracture to electric power facility, thundercloud discharge can cause Lightning Over-voltage in electric power system, and overvoltage common in overhead transmission line has thunderbolt directly to impact by the overvoltage of electromagnetic induction on power transmission line and thunder and lightning the overvoltage produced on wire near overhead wire.Thunderbolt causes overvoltage, may cause damage to insulator, power transmission line; Thunderbolt causes insulator arc-over to discharge, and can burn be caused to come off to porcelain surface or cause pattern cracking to glass insulator, dielectric strength is significantly reduced; Thunder and lightning impact, on power transmission line or lightning conducter, may cause disconnected stock even to rupture, transmission of electricity work cannot be carried out.
In addition, in war or the time of turmoil, transmission line is also the infrastructure that saboteur's emphasis destroys, and its means of destruction mainly throws graphite bomb in transmission line region, the graphite fibre produced after graphite bomb is exploded is attached on the full skirt of insulator string, the insulation property of very big reduction insulator string, like this when finding nature thunderbolt, make transmission line be more prone to line fault occurs.And the throwing of graphite bomb has disguise, on a large scale property, this allows the attendant of transmission line be difficult to energy Timeliness coverage problem, and the cost changing insulator string is also very high.Therefore, how to eliminate the impact of graphite bomb on insulator string in transmission line, be the research topic of related researcher always.
Summary of the invention
The purpose of this utility model is to provide a kind of structure insulator string that is simple, reasonable in design, anti-graphite bomb destruction cleverly.This insulator string not only possesses arc extinguishing ability that can be very strong, and can automatically the graphite fibre stripping being attached to its surface be blown off, ensures the insulation property of insulator string, guarantees that transmission line is reliable, stable, safe transmitting electric power.
To achieve these goals, the utility model have employed following technical scheme:
The insulator string that anti-graphite bomb destroys, comprises insulator string main body; Wherein, be respectively equipped with a circle injection pipe at the two ends of insulator string main body, the arc-extinguishing tube that described injection pipe is cascaded successively by several forms; Be provided with in the inside of insulator string main body and be made up of some sections of arc extinguishing passages and from top to bottom in the arc extinguishing path of Z-shaped circulation arrangement; Each section of described arc extinguishing passage is all placed with two arc extinguishing tubules, is provided with one and leads arc ball between these two arc extinguishing tubules;
In the injection pipe of described insulator string main body upper end, the head end of first arc-extinguishing tube is connected by the fitting of electric conductor with insulator string one end, in the injection pipe of insulator string main body upper end, the end of last arc-extinguishing tube is connected with the arc extinguishing tubule at the first paragraph arc extinguishing feeder connection place in described arc extinguishing path, the arc extinguishing tubule of the final stage arc extinguishing channel exit in described arc extinguishing path is connected with the head end of first arc-extinguishing tube in the injection pipe of described insulator string main body lower end, in the injection pipe of described insulator string main body lower end, the end of last arc-extinguishing tube is connected by the transmission pressure of electric conductor with the insulator string other end.
In the utility model, by arranging injection pipe and arc extinguishing path, arc path being limited, ensureing that electric arc can not carry out flashover on the surface of insulator string; And graphite fibre can be peeled off insulator string surface by the air blast of injection pipe and the generation of arc extinguishing path, the insulation property of proterctive equipment, guarantee power supply reliability.
Further illustrate as of the present utility model, in arc extinguishing path, be provided with copper billet in the junction of arc extinguishing passage adjacent between two; Or be provided with threeway earthenware in the junction of arc extinguishing passage adjacent between two, the two ends of described threeway earthenware are respectively equipped with copper ball electrode, and copper ball electrode respectively with the outlet contact of arc extinguishing passage.When using threeway earthenware, the mode that can form horizontal blowing-out arc carries out arc extinguishing.
Further illustrate as of the present utility model, described to lead arc ball be graphite bead or be copper bead; Described arc extinguishing tubule is thin ceramic tubes; The both sides of described copper billet are provided with through hole.Through hole on copper billet is corresponding with the outlet of arc extinguishing passage, is beneficial to air blast ejection.
Further illustrate as of the present utility model, described arc-extinguishing tube primarily of outer wall earthenware, one end of outer wall earthenware carried out the diaphragm seal sealed and the little copper pipe composition being embedded in the outer wall earthenware other end; One end of described arc-extinguishing tube sealing is located at inside insulator string main body.
Further illustrate as of the present utility model, the fitting of described insulator string one end is connected with the diaphragm seal of first arc-extinguishing tube in the injection pipe of described insulator string main body upper end by electric conductor, the little copper pipe of first arc-extinguishing tube is connected with the little copper pipe of second arc-extinguishing tube, the diaphragm seal of second arc-extinguishing tube is connected with the diaphragm seal of the 3rd arc-extinguishing tube, be linked in sequence down with this, in the injection pipe of insulator string main body upper end, the end of last arc-extinguishing tube is connected with the arc extinguishing tubule at the first paragraph arc extinguishing feeder connection place in described arc extinguishing path, the arc extinguishing tubule of the final stage arc extinguishing channel exit in described arc extinguishing path is connected with the head end of first arc-extinguishing tube in the injection pipe of described insulator string main body lower end, in the injection pipe of described insulator string main body lower end, the end of last arc-extinguishing tube is connected by the transmission pressure of electric conductor with the insulator string other end.
Further illustrate as of the present invention, described insulator string body outer surface is provided with full skirt, and the size of the full skirt of upper/lower terminal is larger than the full skirt of centre.Larger full skirt can increase the creep distance of electric arc, and more convenient installation injection pipe.
Operation principle of the present utility model:
The insulator string that anti-graphite bomb of the present utility model destroys is triggered by lightening pulse; the development track of preferential attraction, control and change lightning impulse electric arc; electric arc is controlled in fixing arc extinguishing path; in arc-extinguishing tube, produce high velocity air ejection simultaneously; graphite fibre is peeled off insulator surface; the insulation property of proterctive equipment, guarantee power supply reliability.
The utility model by by electric arc lead-in insulator string body interior in Z-shaped arc extinguishing path in (due to copper billet and the striking effect leading arc ball, arc path is prescribed, can not from insulator string body surfaces generation flashover); When electric arc each section of arc extinguishing passage in arc extinguishing path, the arc-extinguishing tube Yin Gaowen in arc extinguishing passage produces air blast, blows draw the flex point of electric arc, and slenderizing electric arc, makes electric arc be more prone to be blown out and not resume combustion again.
Advantage of the present utility model:
1. structure is simple, reasonable in design, and arc extinguishing ability is strong, and working stability is reliable.Arrange the arc extinguishing path in Z-shaped circulation arrangement in insulator string body interior, and be provided with copper billet and lead arc ball, effectively define the path of electric arc, ensure that electric arc expands through multi-drawing, electric arc forms multibreak, extinguishes rapidly and phenomenon of not restriking.
2. the utility model adopts horizontal blowing to blow with vertical the mode arc extinguishing combined, and arc quenching effect is better.
3. the utility model is when carrying out arc extinguishing, has air blast to spray, and graphite fibre can be peeled off the outer surface of insulator string, and the insulation property of protection insulator string, effectively prevent the destruction of graphite bomb.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the schematic diagram in arc extinguishing path in the utility model one embodiment.
Fig. 3 is the structural representation of arc extinguishing passage in the utility model one embodiment.
Fig. 4 is the schematic diagram of injection pipe in the utility model one embodiment.
Reference numeral:
1-insulator string main body, 2-arc extinguishing path, 3-injection pipe, 4-electric conductor, 201-arc extinguishing passage, 202-leads arc ball, 203-arc extinguishing tubule, 301-arc-extinguishing tube.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Embodiment 1:
As Figure 1-4, the insulator string that a kind of anti-graphite bomb destroys, comprises insulator string main body 1; Be respectively equipped with a circle injection pipe 3 at the two ends of insulator string main body 1, the arc-extinguishing tube 301 that described injection pipe 3 is cascaded successively by several forms; Be provided with in the inside of insulator string main body 1 and be made up of some sections of arc extinguishing passages 201 and from top to bottom in the arc extinguishing path 2 of Z-shaped circulation arrangement; Each section of described arc extinguishing passage is all placed with two arc extinguishing tubules 203, is provided with one and leads arc ball 202 between these two arc extinguishing tubules 203.
In arc extinguishing path 2, be provided with copper billet in the junction of arc extinguishing passage 201 adjacent between two.Described leads arc ball 202 for graphite bead; Described arc extinguishing tubule 203 is thin ceramic tubes; The both sides of described copper billet are provided with through hole.Described arc-extinguishing tube 301 primarily of outer wall earthenware, one end of outer wall earthenware carried out the diaphragm seal sealed and the little copper pipe composition being embedded in the outer wall earthenware other end; One end that described arc-extinguishing tube 301 seals is located at inside insulator string main body 1.
The fitting of described insulator string one end is connected with the diaphragm seal of first arc-extinguishing tube in the injection pipe 3 of described insulator string main body 1 upper end by electric conductor 4, the little copper pipe of first arc-extinguishing tube is connected with the little copper pipe of second arc-extinguishing tube, the diaphragm seal of second arc-extinguishing tube is connected with the diaphragm seal of the 3rd arc-extinguishing tube, be linked in sequence down with this, in the injection pipe 3 of insulator string main body 1 upper end, the end of last arc-extinguishing tube is connected with the arc extinguishing tubule at the first paragraph arc extinguishing feeder connection place in described arc extinguishing path 2, the arc extinguishing tubule of the final stage arc extinguishing channel exit in described arc extinguishing path 2 is connected with the head end of first arc-extinguishing tube in the injection pipe 3 of described insulator string main body 1 lower end, in the injection pipe 3 of described insulator string main body 1 lower end, the end of last arc-extinguishing tube is connected by the transmission pressure of electric conductor 4 with the insulator string other end.
Embodiment 2:
The insulator string that anti-graphite bomb destroys, comprises insulator string main body 1; Be respectively equipped with a circle injection pipe 3 at the two ends of insulator string main body 1, the arc-extinguishing tube 301 that described injection pipe 3 is cascaded successively by several forms; Be provided with in the inside of insulator string main body 1 and be made up of some sections of arc extinguishing passages 201 and from top to bottom in the arc extinguishing path 2 of Z-shaped circulation arrangement; Each section of described arc extinguishing passage is all placed with two arc extinguishing tubules 203, is provided with one and leads arc ball 202 between these two arc extinguishing tubules 203.
In the injection pipe 3 of described insulator string main body 1 upper end, the head end of first arc-extinguishing tube is connected by the fitting of electric conductor 4 with insulator string one end, in the injection pipe 3 of insulator string main body 1 upper end, the end of last arc-extinguishing tube is connected with the arc extinguishing tubule at the first paragraph arc extinguishing feeder connection place in described arc extinguishing path 2, the arc extinguishing tubule of the final stage arc extinguishing channel exit in described arc extinguishing path 2 is connected with the head end of first arc-extinguishing tube in the injection pipe 3 of described insulator string main body 1 lower end, in the injection pipe 3 of described insulator string main body 1 lower end, the end of last arc-extinguishing tube is connected by the transmission pressure of electric conductor 4 with the insulator string other end.
In arc extinguishing path 2, be provided with threeway earthenware in the junction of arc extinguishing passage 201 adjacent between two, the two ends of described threeway earthenware are respectively equipped with copper ball electrode, and copper ball electrode respectively with the outlet contact of arc extinguishing passage 201.
Described leads arc ball 202 for copper bead; Described arc extinguishing tubule 203 is thin ceramic tubes; The both sides of described copper billet are provided with through hole.Described insulator string main body 1 outer surface is provided with full skirt, and the size of the full skirt of upper/lower terminal is larger than the full skirt of centre.
Claims (6)
1. an insulator string for anti-graphite bomb destruction, comprises insulator string main body (1); It is characterized in that: be respectively equipped with a circle injection pipe (3) at the two ends of insulator string main body (1), the arc-extinguishing tube (301) that described injection pipe (3) is cascaded successively by several forms; Be provided with in the inside of insulator string main body (1) and be made up of some sections of arc extinguishing passages (201) and from top to bottom in the arc extinguishing path (2) of Z-shaped circulation arrangement; Each section of described arc extinguishing passage is all placed with two arc extinguishing tubules (203), is provided with one and leads arc ball (202) between these two arc extinguishing tubules (203);
In the injection pipe (3) of described insulator string main body (1) upper end, the head end of first arc-extinguishing tube is connected with the fitting of insulator string one end by electric conductor (4), in the injection pipe (3) of insulator string main body (1) upper end, the end of last arc-extinguishing tube is connected with the arc extinguishing tubule at the first paragraph arc extinguishing feeder connection place of described arc extinguishing path (2), the arc extinguishing tubule of the final stage arc extinguishing channel exit of described arc extinguishing path (2) is connected with the head end of first arc-extinguishing tube in the injection pipe (3) of described insulator string main body (1) lower end, in the injection pipe (3) of described insulator string main body (1) lower end, the end of last arc-extinguishing tube is connected with the transmission pressure of the insulator string other end by electric conductor (4).
2. the insulator string of anti-graphite bomb destruction according to claim 1, is characterized in that: in arc extinguishing path (2), is provided with copper billet in the junction of arc extinguishing passage (201) adjacent between two; Or be provided with threeway earthenware in the junction of arc extinguishing passage (201) adjacent between two, the two ends of described threeway earthenware are respectively equipped with copper ball electrode, and copper ball electrode respectively with the outlet contact of arc extinguishing passage (201).
3. the insulator string that destroys of anti-graphite bomb according to claim 2, is characterized in that: described arc ball (202) of leading is for graphite bead or be copper bead; Described arc extinguishing tubule (203) is thin ceramic tubes; The both sides of described copper billet are provided with through hole.
4. the insulator string that destroys of anti-graphite bomb according to claim 1, is characterized in that: described arc-extinguishing tube (301) is primarily of outer wall earthenware, carry out the diaphragm seal sealed and the little copper pipe composition being embedded in the outer wall earthenware other end by one end of outer wall earthenware; One end that described arc-extinguishing tube (301) seals is located at insulator string main body (1) inner side.
5. the insulator string of anti-graphite bomb destruction according to claim 4, it is characterized in that: the fitting of described insulator string one end is connected with the diaphragm seal of first arc-extinguishing tube in the injection pipe (3) of described insulator string main body (1) upper end by electric conductor (4), the little copper pipe of first arc-extinguishing tube is connected with the little copper pipe of second arc-extinguishing tube, the diaphragm seal of second arc-extinguishing tube is connected with the diaphragm seal of the 3rd arc-extinguishing tube, be linked in sequence down with this, in the injection pipe (3) of insulator string main body (1) upper end, the end of last arc-extinguishing tube is connected with the arc extinguishing tubule at the first paragraph arc extinguishing feeder connection place of described arc extinguishing path (2), the arc extinguishing tubule of the final stage arc extinguishing channel exit of described arc extinguishing path (2) is connected with the head end of first arc-extinguishing tube in the injection pipe (3) of described insulator string main body (1) lower end, in the injection pipe (3) of described insulator string main body (1) lower end, the end of last arc-extinguishing tube is connected with the transmission pressure of the insulator string other end by electric conductor (4).
6. the insulator string of anti-graphite bomb destruction according to claim 1, is characterized in that: described insulator string main body (1) outer surface is provided with full skirt, and the size of the full skirt of upper/lower terminal is larger than the full skirt of centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520094169.8U CN204360853U (en) | 2015-02-10 | 2015-02-10 | The insulator string that a kind of anti-graphite bomb destroys |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520094169.8U CN204360853U (en) | 2015-02-10 | 2015-02-10 | The insulator string that a kind of anti-graphite bomb destroys |
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| CN204360853U true CN204360853U (en) | 2015-05-27 |
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| CN201520094169.8U Active CN204360853U (en) | 2015-02-10 | 2015-02-10 | The insulator string that a kind of anti-graphite bomb destroys |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104715868A (en) * | 2015-02-10 | 2015-06-17 | 王巨丰 | Insulator chain capable of being prevented from being damaged by graphite bomb |
| CN110808135A (en) * | 2019-10-16 | 2020-02-18 | 广西大学 | Series arc extinguishing method |
-
2015
- 2015-02-10 CN CN201520094169.8U patent/CN204360853U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104715868A (en) * | 2015-02-10 | 2015-06-17 | 王巨丰 | Insulator chain capable of being prevented from being damaged by graphite bomb |
| CN110808135A (en) * | 2019-10-16 | 2020-02-18 | 广西大学 | Series arc extinguishing method |
| CN110808135B (en) * | 2019-10-16 | 2021-04-09 | 广西大学 | Series arc extinguishing method |
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