CN209515339U - A kind of multistage backpulsing compression arc extinguishing lightning protection device - Google Patents

Abstract

The utility model discloses a kind of multistage backpulsings to compress arc extinguishing lightning protection device, and apparatus main body outer surface is equipped with several skirts；The inner hollow of apparatus main body, and the arc extinguishing path of arc extinguishing pipeline composition is equipped in upper half-space, it is equipped in the lower half-space and leads arc ball I with what apparatus main body inner sidewall was in close contact, it is equipped in arc extinguishing pipeline and leads arc ball III, it is connected between adjacent arc extinguishing pipe end by conducting connecting part two-by-two, the end of final stage arc extinguishing pipeline is electrically connected with the arc ball I of leading for being located at top；It is equipped with compressed air stream injection channel and recoil injection channel on apparatus main body side wall, is equipped with compressed air stream jet port and recoil jet port in apparatus main body outer surface.The utility model structure is simple, and using apparatus main body as arc-chutes, electric arc that can be big to energy carries out multistage recoil effect, and it is combined by carrying out transverse and longitudinal truncation to electric arc, electric arc can preferably be truncated, significantly cut down arc energy, or even extinguish electric arc.

Description

A kind of multistage backpulsing compression arc extinguishing lightning protection device

Technical field

The utility model belongs to the electric armour clamp technical field of power transmission and distribution overhead transmission line, is related to a kind of multistage backpulsing pressure Contracting arc extinguishing lightning protection device.

Background technique

Electric power energy and load center distribution in China is very unbalanced, mainly generated electricity with coal based on.Coal resources are big Part concentrates on the Northwest, and developable waterpower resourses are concentrated mainly on western and middle part, and in the load in China The heart concentrates on East Coastal, Beijing-Tianjin-Tangshan and middle part developed regions.Which dictates that China will solve the electrical problems of load center, it must Trans-regional, large capacity and remote energy delivery channel are so built while Devoting Major Efforts To Developing waterpower and thermal power generation.

With the continuous raising of transmission line of electricity voltage class, the accumulative extra-high voltage project for having built up " eight friendships ten are straight " of country, The transmission line of electricity for foring more than 110 ten thousand kms possesses more than nearly 5,000 ten thousand base shaft towers, and according to statistics, electric network thunderstorm damage risk is mainly concentrated In transmission line of electricity, damage to crops caused by thunder, which is still, influences the safe and stable and reliable key factor of power transmission network.Existing lightning protection system Mainly " obstructive type " lightning protection mode, major measure are to set up lightning conducter and coupling ground wire, reduce pole tower ground resistance, splicing thread Road insulation and installation leakage conductor etc. are limited to since its validity, safety and economy exist, and are only capable of protection single Weak lightning stroke, to it is huge lightning stroke there are huge blank with multiple lightning Protection.Existing " diverting type " lightning protection mode, mainly exists Portable protective gaps in parallel are installed at insulator chain both ends, although its structure is simple, easy for installation, since it does not have arc-suppression function mould Block makes to continue to flow into short circuit current in system, can only rely on circuit breaker trip short circuit current, with " trip-out rate exchanges accident rate for ", Easily cause the huge safety accident of route.Simultaneously as the ablation of short circuit current acts on, so that portable protective gaps Insulation Coordination in parallel is lost Effect, loses the function of application.

If Patent No. 2015100691235 discloses a kind of countable section of arc lightning protection device, although the patent plays lightning protection Arrive good effect, but still some shortcomings, only vertical to blow arc quenching method, when electric arc is stronger, electric arc is not easy to blow out.

Utility model content

The utility model in view of the deficiencies of the prior art, proposes that a kind of electric arc that can be big to energy carries out multistage recoil and makees With electric arc can preferably be truncated, significantly cut down arc energy, the multistage backpulsing compression arc extinguishing for being conducive to extinguish electric arc is anti- Thunder device.

To achieve the goals above, the utility model uses following technical scheme:

A kind of multistage backpulsing compression arc extinguishing lightning protection device, the apparatus main body including straight-tube shape；The apparatus main body Inner hollow, and be equipped with several segments in upper half-space and tilt the arc extinguishing path that the arc extinguishing pipeline of arrangement forms from top to bottom, It is equipped with several from top to bottom in the lower half-space and leads arc ball I with what apparatus main body inner sidewall was in close contact；The arc-extinguishing tube It is equipped in road and leads arc ball III；It is connected between adjacent arc extinguishing pipe end by conducting connecting part two-by-two, final stage arc extinguishing The end of pipeline is electrically connected with the arc ball I of leading for being located at top；On apparatus main body side wall corresponding with arc extinguishing pipe end Equipped with compressed air stream injection channel, and compressed air stream jet port is correspondingly provided on apparatus main body outer surface；It is adjacent two It leads and is additionally provided with recoil injection channel on the apparatus main body side wall between arc ball I, and be correspondingly provided on apparatus main body outer surface Recoil jet port, so that the lower half portion of apparatus main body forms the recoil tube of several hemi-closure spaces.

As further technological improvement, becket and chain-wales are also equipped with inside the apparatus main body；Described The top of recoil jet port is arranged in chain-wales；The becket is mounted on chain-wales, and the outer surface of becket is tight The interior sidewall surface of close device main body.Recoil jet port includes the bottom at recoil injection channel mouth and apparatus main body bottom opening Recoil jet port；Becket outer diameter is tightly attached to apparatus main body internal diameter, fixes its position by chain-wales, avoids golden in back flushing process Belong to ring to be displaced；Multiple metals can also be increased in side grade recoil tube (the i.e. two adjacent apparatus main body segments led between arc ball I) Ring, wherein having a becket setting above recoil injection channel, in the bottom recoil jet port of apparatus main body bottom Increase a becket；Ensure that electric arc can smoothly enter into apparatus main body using the metallic conductivity of becket, realizes recoil function Can, simultaneously because apparatus main body exit stress is big, becket can also play the role of protective device body exit；Not only may be used It, can also be in whole device main body one metal of design spaced apart to design becket at apparatus main body outlet at bottom Ring ensures arc channel control in the track of setting.

As further technological improvement, the recoil injection channel is to be obliquely installed.

As further technological improvement, the conducting connecting part is conducting wire or sheet metal or tee tube.

As further technological improvement, set inside the tee tube there are two leading arc ball II；Two curve II it Between be equipped with the air gap, and air gap length is precisely the diameter of the radial tubes of tee tube.Leading arc ball II is sphere structure, After electric arc enters tee tube, tee tube intermediate injection mouth forms jet-stream wind and acts on electric arc, and realization is horizontal to blow, due to device packet Pipeline containing arc extinguishing and tee tube, can be achieved with to electric arc it is horizontal blow and indulge blow.

As further technological improvement, the radial tubes nozzle abutting device main body interior sidewall surface of the tee tube, and And corresponding compressed air stream injection channel is equipped on apparatus main body side wall.

As further technological improvement, the arc ball III of leading is arranged in arc extinguishing pipeline middle position.

As further technological improvement, the apparatus main body outer surface is equipped with several skirts.

As further technological improvement, described leading arc ball I, lead arc ball II and lead arc ball III is all made of graphite or metal Material.

Working principle of the utility model is:

Electric arc is that have elastically-deformable plasma, after it enters recoil tube, due to being limited by recoil tube wall, When electric arc enters recoil tube beginning, density, speed, temperature increase, and lead to the increase of overpressure, and final generate presses quick-fried effect, Electric arc impact recoil bottom of the tube leads arc ball I, electric arc blocking recoil bottom of the tube by reversed elastic force, before most of electric arc 180 ° of change occurs into direction, small part electric arc enters the arc extinguishing path of arc extinguishing pipeline composition due to Coulomb force effect, by going out Arc pipeline carries out compressed air stream and sprays arc extinguishing.The electric arc to rebound back is since speed, density, pressure are bigger, and cavity effect is in entrance Place acts on outer electric arc, and the electric arc at recoil pipe port is caused to generate truncation.

Recoil tube in the utility model is a narrow pipe perfusion channel, this is the unique passage that electric arc enters device.It fills The physical change of multiplicity is generated during note.

1. elastic deformation occurs for arc-plasma.Arc-plasma enter recoil tube inlet when, physics shape first Shape changes, and becomes superfine electric arc by thick electric arc, and radial pressure changes into axial compressive force, due to narrow pipe recoil effect, Spouting velocity can be accelerated when electric arc recoils.

2. electric arc temperature-rise effect aggravates.After electric arc attenuates, electric arc cross-sectional area reduces, according to formula, electric arc electricity Resistance can substantial increase.Due to thunder and lightning arc practical experience work in frequently as constant-current source, according to formula It is found that although impact when the time only have several microseconds, integral energy can enhance, and the containing warm-natured degree of recoil tube can increase.

Arc radiation, convection current, three kinds of modes that conduction is energy loss, due to closed conduct, that is, exogenous closure environment Under, heat cannot be released, and play the role of blocking to electric arc, and only meeting heat production, will not radiate, therefore can generate blocking Temperature rise so that manage in constant temperature increase.

3. quick-fried effect is pressed to sharply increase.It is stepped up the increase so that electric arc accumulation property when temperature, is further aggravated Pressure quick-fried effect, keeps arc spraying dynamics bigger.

Arc extinguishing pipeline can mutually lean on too close due to being tilted in device noumenon to avoid upper and lower two adjacent arc extinguishing pipe ends Lead to air breakdown striking phenomenon, and electric arc can not be made effectively to be blown out；The both ends of arc extinguishing pipeline respectively with apparatus main body inner wall Two sides are in contact；The opening of apparatus main body bottom is bottom recoil jet port；Closed state is set as at the top of apparatus main body；

Leading arc ball I is sphere structure, is led in the lower half-space that arc ball I is arranged equally spaced inside apparatus main body；Lead arc It is closely inlayed between ball I and apparatus main body, the upper half-space of apparatus main body constitutes compression arc extinguishing pipeline, is located at apparatus main body bottom Lead between arc ball I and lower section port composition straight tube recoil tube, straight tube recoil tube is hemi-closure space；It is adjacent two-by-two to lead arc ball I forms side grade recoil tube with the space that apparatus main body is constituted, each side grade recoil tube with corresponding compressed air stream injection channel Form hemi-closure space；Leading arc ball III is sphere structure, leads arc ball III and is embedded in arc extinguishing pipeline, so that arc extinguishing pipeline is led arc Ball III is divided into two hemi-closure spaces.

The material of apparatus main body uses high-intensity high-density material resistant to high temperatures, such as ceramal, rare-earth ceramic, graphite Alkene-ceramic composite, organic ceramic, silastic elastomer, organic insulating material, glass alloy, rare earth glass, graphene glass The insulating materials such as glass, organic glass.

This compression arc extinguishing lightning protection device is mounted on the insulator chain of low-pressure end side when use, first segment arc extinguishing pipeline Head end and the insulator chain of low-pressure end side be electrically connected；And the position of this compression arc extinguishing lightning protection device and high-voltage end side Lower electrode it is corresponding, centre is flashover air duct, by Insulation Coordination, be struck by lightning shaft tower or lightning conducter when the lightning stroke that generates Voltage first punctures parallel port and protects insulator chain, and the electric arc of formation enters backpulsing compression arc extinguishing lightning protection device, and electric arc is first It is introduced into straight tube recoil tube；

The internal diameter in the arc extinguishing path of apparatus main body is smaller than arc diameter, and when electric arc enters in apparatus main body, electric arc is got over It walks inward, the narrow pipe perfusion effect by apparatus main body tube wall is stronger；At this point, the arc density in apparatus main body increases, due to The airtight performance of apparatus main body, temperature moment rises in apparatus main body pipe, is formed internal with extraneous density contrast, temperature difference, dress The limitation of main body inside pipe wall is set, density, speed, temperature increase when electric arc enters recoil tube beginning, cause overpressure to increase, most It generates eventually and presses quick-fried effect, make electric arc in the recoil bottom of the tube of blocking by reversed elastic force, 180 ° of change occurs for electric arc direction.Instead For the electric arc to rebound since speed, density, pressure are bigger, cavity effect acts on outer electric arc in inlet, leads to the electricity at port Arc generates truncation.Arc energy into recoil tube is bigger, and the narrow pipe perfusion effect by recoil tube is bigger, the density contrast of formation It is bigger with temperature difference, so that back flushing capability is stronger, or even extinguish electric arc.

Since multistage leads the electric conductivity of arc ball I, the electric arc approaching side grade recoil tube that will take advantage of a situation repeats multistage recoil effect, electricity Arc is changed by elastic force, arc motion direction, sprays from side spout, and the part side jet-stream wind of generation acts on electric arc, Realize laterally multistage truncation；Arc energy is bigger, and the density contrast and temperature difference of formation are bigger, so that back flushing capability is stronger； Electric arc is acted in loudspeaker recoil tube by cavity effect, weakens the energy of electric arc, and the energy for making it into side grade recoil tube subtracts It is few, and due to the lateral Truncation of side grade recoil tube, so that electric arc is formed multiple breakpoints, accelerates the extinguishing of electric arc；Electric arc passes through After recoil effect, energy is cut down significantly, and remaining electric arc passes through the arc extinguishing pipeline led I striking of arc ball and enter upper part at top, It by compression, forms multi-point injection by inside and outside temperature difference, density contrast and pressure difference and indulges and blow, electric arc is divided into multiple disconnected Point realizes electric arc Truncation, finally extinguishes electric arc, it is ensured that extinguishes electric arc completely before breaker is cut-off, insulate in protection Circuit breaker trip is avoided while substring again.

This patent and the prior art " arcing horn device (number of patent application CN200810178607.3) " described structure And principle is compared to there is following difference:

1) time-lag effect is not present in arc extinguishing.Since arcing horn device is to spray arc air, the mistake by lightning stroke flashover The conductive component of ion component in the gas of metal component or plasma that journey needs to melt, vaporize and generate etc., Floating state is presented in the ingredient in air, to reduce insulating capacity in air and be easy to produce electric arc displacement, and in electric arc Arc air is sprayed at displacement, thus blocks electric arc.Obviously, in arc flash-conductive material melting, vaporization-ejection electricity This process of arc jet, there are time-lag effects, i.e., arcing horn device, which exists, sprays arc air energy less than lightning stroke flashover electricity Arc energy.And effect is perfused in the narrow pipe that this patent proposes, makes full use of arc-plasma that elastic deformation, arc plasma occurs When entering recoil tube inlet, physical form changes body first, becomes superfine electric arc by thick electric arc, radial pressure turns At axial compressive force, due to narrow pipe recoil effect, in electric arc recoil, spouting velocity can be accelerated.

2) arc extinguishing threshold value is high.Due to the arc extinguishing cylinder and aerogenesis apparatus of arcing horn device be by polyamide (also known as Nylon), it can bear temperature at 500 DEG C or so, value is much smaller than electric arc calcination temperature (up to 3726.85 DEG C).So Arc extinguishing cylinder and aerogenesis apparatus are easily influenced by high temperature, and explosion is finally resulted in.And this patent proposes to use high-strength high temperature-resistant resistance to The non-conducting material of high pressure is made, such as ceramal, rare-earth ceramic, Graphene-ceramic composite material, organic ceramic, synthesis Silicon rubber, organic insulating material, glass alloy, rare earth glass, Graphene glass, organic glass, in conjunction with new material

3) there is no high-temperature bakings to produce gas mode.Since arcing horn device is to act on electricity by spraying arc air Arc, and electric arc is blown in gap.Wherein spraying arc air is that high-temperature baking is needed to produce gas, this seriously leads to gas exhausted material Loss, hence it is evident that reduce the service life of device.And this patent proposes that effect is perfused in the narrow pipe of plasma: utilizing arc-plasma Mobility becomes axial expansion in the radial displacement for entering electric arc in recoil tube；Recoil bottom of the tube is being touched by geometry bullet Property deformation, incoming flow electric arc and the pressure for going galvanic electricity arc to be formed superposition, temperature superimposition and density synergistic effect make in recoil module The very fast multiplication of pressure destroys electric arc subsequent power, blocks electric arc continuity.So there is no high-temperature bakings to produce gas mode, guarantee This patent material loss, and long service life.

Compared with prior art, the utility model have the utility model has the advantages that

1. the utility model using straight tube recoil tube as level-one arc-chutes, can the electric arc big to energy pass through first instead Most of arc energy is cut down in punching effect, and the electric arc after weakening energy enters back into side grade recoil tube and arc extinguishing pipeline, can be effective Arc extinguishing pipeline is protected, the service life of arc extinguishing pipeline is extended.

2. the utility model can be such that electric arc is formed multibreak by carrying out multistage recoil to electric arc in the grade recoil tube of side Point, significantly cuts down arc energy, is conducive to extinguish electric arc.

3. the utility model, which first passes through straight tube recoil tube, carries out longitudinal Truncation to electric arc, then passes through side grade recoil tube pair Electric arc carries out lateral Truncation, and longitudinal truncation and laterally truncation combine, and electric arc can preferably be truncated.

4. apparatus main body is to carry out arc extinguishing using thunder and lightning self-energy in the utility model, independent of power frequency energy.

5. the utility model changes the temperature difference inside and outside apparatus main body using heating effect of current, to generate air pressure difference Electric arc is blown out, avoids being conducive to reuse for a long time using external gas exhausted material.

Detailed description of the invention

Fig. 1 is the scheme of installation of the utility model.

Fig. 2 is the external structure schematic diagram of the utility model.

Fig. 3 is the schematic diagram of internal structure of embodiment 1 in the utility model.

Fig. 4 is the enlarged drawing in Fig. 3 at A.

Fig. 5 is the cross-sectional view of arc extinguishing pipeline in the utility model.

Fig. 6 is the schematic diagram of internal structure of embodiment 2 in the utility model.

Fig. 7 is the cross-sectional view of tee tube in the utility model.

Fig. 8 is the structural schematic diagram of embodiment 3 in the utility model.

Fig. 9 is the structural schematic diagram of embodiment 4 in the utility model.

Appended drawing reference: 1- low-pressure end, 2- insulator chain, 3- high-voltage end, electrode under 4-, 5- compressed air stream jet port, 6- are anti- Rush injection channel, recoil jet port for the bottom 7-, and 8- leads arc ball I, the skirt 9-, 10- arc extinguishing pipeline, and 11- leads arc ball III, 12- injection Channel, 13- tee tube, 14- lead arc ball II, 15- becket, 16- chain-wales, 17- apparatus main body.

Specific embodiment

The present invention will be further described with reference to the accompanying drawing.

Embodiment 1:

As shown in figure 3, a kind of multistage backpulsing compresses arc extinguishing lightning protection device, the apparatus main body 17 including straight-tube shape；It is described 17 outer surface of apparatus main body be equipped with several skirts 9；The inner hollow of the apparatus main body 17, and in upper half-space It tilts the arc extinguishing path that the arc extinguishing pipeline 10 of arrangement forms from top to bottom equipped with several segments, is equipped with from top to bottom in the lower half-space Several lead arc ball I 8 with what apparatus main body inner sidewall was in close contact；It is equipped in the arc extinguishing pipeline 10 and leads arc ball III 11；Two Be connected between two adjacent arc extinguishing pipe ends by conducting connecting part, the end of final stage arc extinguishing pipeline be located at top Arc ball I of leading be electrically connected；It is logical that compressed air stream injection is equipped on apparatus main body side wall corresponding with 10 end of arc extinguishing pipeline Road 12, and compressed air stream jet port 5 is correspondingly provided on apparatus main body outer surface；In the two adjacent dresses led between arc ball I It sets and is additionally provided with recoil injection channel 6 in main body wall, and be correspondingly provided with recoil jet port on apparatus main body outer surface, so that The lower half portion of apparatus main body forms the recoil tube of several hemi-closure spaces.

The recoil injection channel 6 is to be obliquely installed.The arc ball III 11 of leading is arranged in 10 interposition of arc extinguishing pipeline It sets.The conducting connecting part is conducting wire.

The working principle of the present embodiment:

Arc extinguishing pipeline 10, can be to avoid upper and lower two adjacent 10 end phases of arc extinguishing pipeline due to being tilted in device noumenon 17 By closely leading to very much air breakdown striking phenomenon, and electric arc can not be made effectively to be blown out；The both ends of arc extinguishing pipeline 10 respectively with device 17 inner wall two sides of main body are in contact；The opening of 17 bottom of apparatus main body is bottom recoil jet port 7；It is arranged at the top of apparatus main body 17 For closed state；Leading arc ball I 8 is sphere structure, leads the lower half-space that arc ball I 8 is arranged equally spaced inside apparatus main body 17 In；It leads and is closely inlayed between arc ball I 8 and apparatus main body 17, the upper half-space of apparatus main body 17 constitutes compression arc extinguishing pipeline, is located at bottom Composition straight tube recoil tube between arc ball I 8 and lower section port is led at end, and straight tube recoil tube is hemi-closure space；It is adjacent two-by-two to lead The space that arc ball I 8 and apparatus main body 17 are constituted forms side grade recoil tube, and each side grade recoil tube is sprayed with corresponding compressed air stream Channel 12 forms hemi-closure space；Leading arc ball III 11 is sphere structure, leads arc ball III 11 and is embedded in arc extinguishing pipeline 10, so that going out Arc pipeline 10 is led arc ball III 11 and is divided into two hemi-closure spaces.

This compression arc extinguishing lightning protection device is mounted on the insulator chain 2 of 1 side of low-pressure end when use, first segment arc-extinguishing tube The head end in road 10 and the insulator chain 2 of 1 side of low-pressure end are electrically connected；And position and the high pressure of this compression arc extinguishing lightning protection device Hold the lower electrode 4 of 3 sides corresponding, centre is flashover air duct, by Insulation Coordination, be struck by lightning shaft tower or lightning conducter when generate Lightning Over-voltage preferentially puncture parallel port protection insulator chain 2, the electric arc of formation enter backpulsing compression arc extinguishing lightning protection dress It sets, electric arc initially enters in straight tube recoil tube；The diameter of apparatus main body 17 is smaller than arc diameter, when electric arc enters apparatus main body When in 17, electric arc is walked more inward, due to stronger by recoil tube narrow pipe perfusion effect, density when electric arc enters recoil tube beginning, Speed, temperature increase, and overpressure is caused to increase, and final generate presses quick-fried effect, electric arc blocking recoil bottom of the tube by bullet 180 ° of change occurs for power, electric arc direction.The electric arc to rebound back forms cavity since speed, density, pressure are bigger, in inlet Effect simultaneously acts on outer electric arc, and the electric arc at port is caused to generate truncation；At this point, the arc density in apparatus main body 17 increases, Due to the airtight performance of apparatus main body 17, apparatus main body 17 manages interior temperature moment rising, forms the internal density contrast with the external world, temperature It is poor to spend.Bigger into recoil tube arc energy, the narrow pipe perfusion effect being subject to is more strong, and the density contrast and temperature difference of formation are just It is bigger, so that back flushing capability is stronger, or even extinguish electric arc；Since multistage leads the electric conductivity of arc ball I 8, electric arc will take advantage of a situation into Enter side grade recoil tube and repeat multistage recoil effect, electric arc is changed by elastic force, arc motion direction, sprays from side spout, raw At side jet-stream wind act on electric arc, realize laterally multistage truncation；Arc energy is bigger, the density contrast and temperature difference of formation It is bigger, so that back flushing capability is stronger；Electric arc is acted in straight tube recoil tube by cavity effect, weakens the energy of electric arc, The energy for making it into side grade recoil tube is reduced, and due to the lateral Truncation of side grade recoil tube, forms electric arc multiple disconnected Point accelerates the extinguishing of electric arc；Electric arc after recoil acts on, cut down significantly by energy, and remaining electric arc leads arc ball I by top 8 strikings enter the arc extinguishing pipeline 10 of upper part, due to passing through inside and outside temperature difference, density contrast and pressure difference shape by compression It is blown at multi-point injection is vertical, electric arc is divided into multiple breakpoints, electric arc Truncation is realized, finally extinguishes electric arc, it is ensured that in open circuit Device extinguishes electric arc before cut-offfing completely, avoids circuit breaker trip again while protecting insulator chain 2.

Embodiment 2:

The present embodiment and the difference of embodiment 1 are only that: be also equipped with inside the apparatus main body 17 becket 15 and Chain-wales 16；The top of recoil jet port is arranged in the chain-wales 16；The becket 15 is mounted on chain-wales 16, And the interior sidewall surface of apparatus main body 17 is close in the outer surface of becket 15.

Recoil jet port includes the bottom recoil jet port 7 at recoil injection channel 6 and 17 bottom opening of apparatus main body；Gold Belong to 15 outer diameter of ring and be tightly attached to 17 internal diameter of apparatus main body, fixes its position by chain-wales 16, avoid becket 15 in back flushing process It is displaced；Similarly, multiple beckets 15 can also be increased in side grade recoil tube, wherein there is a becket 15 to be arranged in back flushing air It flows above injection channel 6, increases a becket 15 in the bottom recoil jet port 7 of 17 bottom of apparatus main body；Utilize gold The metallic conductivity for belonging to ring 15 ensures that electric arc can smoothly enter into apparatus main body 17, counter-flush is realized, simultaneously because device master 17 exit stress of body is big, and becket 15 can also play the role of the outlet of protective device main body 17；It not only can be in device master Becket 15 is designed at 17 outlet at bottom of body, it can also be in one becket 15 of design spaced apart of whole device main body 17 Ensure arc channel control in the track of setting.

Embodiment 3:

The present embodiment and the difference of embodiment 1 are only that: the conducting connecting part is tee tube.The tee tube 13 Arc ball II 14 is led there are two setting in inside；The air gap is equipped between two curve II, and air gap length is precisely three The diameter of the radial tubes of siphunculus 13.The side nozzle abutting device main body interior sidewall surface of the tee tube 13, and in device Main body wall is equipped with corresponding compressed air stream injection channel.

Leading arc ball II 14 is sphere structure, and after electric arc enters tee tube 13,13 intermediate injection mouth of tee tube forms injection In electric arc, realization is horizontal to blow airflow function, since device includes arc extinguishing pipeline 10 and tee tube 13, can be achieved with blowing the horizontal of electric arc It is blown with vertical.

Embodiment 4:

The present embodiment and the difference of embodiment 3 are only that: be also equipped with inside the apparatus main body 17 becket 15 and Chain-wales 16；The top of recoil jet port is arranged in the chain-wales 16；The becket 15 is mounted on chain-wales 16, And the interior sidewall surface of apparatus main body 17 is close in the outer surface of becket 15.

Obviously, above-described embodiment illustrates examples for clearly illustrating the present invention just for the sake of clear, and not to implementation Restriction.For the those of ordinary skill in the field, other not similar shapes can also be made on the basis of the above description The variation or variation of formula.There is no need and unable to all embodiment party's formulas with exhaustion.And it thus amplifies out aobvious and easy The variation seen changes among still in the protection scope of the utility model.

Claims (8)

1. a kind of multistage backpulsing compresses arc extinguishing lightning protection device, the apparatus main body (17) including straight-tube shape；It is characterized by: described Apparatus main body (17) inner hollow, and be equipped with several segments in upper half-space and tilt the arc extinguishing pipeline of arrangement from top to bottom (10) the arc extinguishing path formed is equipped with several in the lower half-space from top to bottom and leads with what apparatus main body inner sidewall was in close contact Arc ball I (8)；

It is equipped in the arc extinguishing pipeline (10) and leads arc ball III (11)；Connected between adjacent arc extinguishing pipe end by conductive two-by-two Fitting is connected, and the end of final stage arc extinguishing pipeline is electrically connected with the arc ball I of leading for being located at top；

Compressed air stream injection channel (12) are equipped on apparatus main body side wall corresponding with arc extinguishing pipeline (10) end, and Compressed air stream jet port (5) are correspondingly provided on apparatus main body outer surface；

Recoil injection channel (6) is additionally provided on the two adjacent apparatus main body side walls led between arc ball I, and in apparatus main body Recoil jet port is correspondingly provided on outer surface, so that the lower half portion of apparatus main body forms the recoil of several hemi-closure spaces Pipe.

2. multistage backpulsing according to claim 1 compresses arc extinguishing lightning protection device, it is characterised in that: the apparatus main body (17) internal to be also equipped with becket (15) and chain-wales (16)；The upper of recoil jet port is arranged in the chain-wales (16) Side；The becket (15) is mounted on chain-wales (16), and apparatus main body is close in the outer surface of becket (15) (17) interior sidewall surface.

3. multistage backpulsing according to claim 1 or 2 compresses arc extinguishing lightning protection device, it is characterised in that: the recoil Injection channel (6) is to be obliquely installed.

4. multistage backpulsing according to claim 1 compresses arc extinguishing lightning protection device, it is characterised in that: the conductive connection Part is conducting wire or sheet metal or tee tube.

5. multistage backpulsing according to claim 4 compresses arc extinguishing lightning protection device, it is characterised in that: the tee tube (13) arc ball II (14) is led there are two setting inside；The air gap is equipped between two curve II, and air gap length is proper It is the diameter of the radial tubes of tee tube (13) well.

6. multistage backpulsing according to claim 5 compresses arc extinguishing lightning protection device, it is characterised in that: the tee tube (13) radial tubes nozzle abutting device main body interior sidewall surface, and be equipped with corresponding compressed air stream on apparatus main body side wall and spray Penetrate channel.

7. multistage backpulsing according to claim 1 compresses arc extinguishing lightning protection device, it is characterised in that: described leads arc ball III (11) it is arranged in arc extinguishing pipeline (10) middle position.

8. multistage backpulsing according to claim 1 compresses arc extinguishing lightning protection device, it is characterised in that: the apparatus main body (17) outer surface is equipped with several skirts (9).