CN209657921U

CN209657921U - A kind of comprehensive arc extinguishing arrester of semi-enclosed recoil

Info

Publication number: CN209657921U
Application number: CN201920515164.6U
Authority: CN
Inventors: 王巨丰; 王嬿蕾; 唐佳雄; 徐宇恒; 李心如
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2019-11-19
Anticipated expiration: 2029-04-16

Abstract

The utility model discloses a kind of comprehensive arc extinguishing arresters of semi-enclosed recoil, including arrester main body；The arrester body interior is hollow, and is longitudinally equipped with insulating barrier along arrester main body and arrester body interior is made to form two independent spark chambers；Recoiling device is equipped with inside the spark chamber upper end in left side, lower end is set as recoil opening；Jet-stream wind device is equipped with inside the spark chamber lower end on right side, upper end is equipped with the air-flow spout that outside side extends；The top of the recoiling device and the bottom of the jet-stream wind device are respectively equipped with arc electrode；The insulating barrier is equipped with wall electrode.The arrester device can effectively prevent insulator arc-over problem, reduce power equipment tripping rate with lightning strike, protect electric power facility, improve electric network reliability, be conducive to electricity safety production.

Description

A kind of comprehensive arc extinguishing arrester of semi-enclosed recoil

Technical field

The utility model belongs to the arrester of power transmission and distribution overhead transmission line, is related to the comprehensive arc extinguishing of the semi-enclosed recoil of one kind and keeps away Thunder device.

Background technique

Thunder and lightning strike can bring various forms of damages and destruction to electric power facility, and thundercloud discharge can draw in the power system Lightning Over-voltage is played, common overvoltage has lightning stroke to pass through electromagnetic induction near overhead line on power transmission line in overhead transmission line Overvoltage and thunder and lightning directly strike the overvoltage generated on conducting wire.Lightning stroke causes overvoltage, may make to insulator, power transmission line At damage；Lightning stroke causes insulator arc-over to discharge, and burn can be caused to fall off or cause to glass insulator netted to porcelain surface Dielectric strength is greatly reduced in crackle；Thunder and lightning strikes on power transmission line or lightning conducter, may cause stranded or even fracture, make Transmission of electricity work can not carry out.

Transmission line of electricity lightning protection always is the important content of power department Thunder Protection, and lightning fault is still influence power grid One of the key factor of safety.Caused impulse flashover when transmission line of electricity is struck by lightning, leads to line insulator flashover, then produces Raw very big power frequency continued flow, damages insulator chain and fitting, leads to line accident.This power department is generally used in power transmission line Road installs line thunder protection device additional to realize protection.

Applicant and related invention people have the following problems in the existing lightning protection device of lasting research process discovery: 1) arc extinguishing energy Power is not strong, the arc extinguishing energy of arc-control device effect flashover arc energy always；2) arc extinguishing sensitivity is not high, and there are low temperature electric arc feelings The problem of arc-control device is failure to actuate under condition；3) durability is bad, and most of arc-control devices need gas exhausted material to provide arc extinguishing condition, There is unnecessary consumption in extreme circumstances；4) it is influenced by the method for operation, so that arc extinguishing lightning protection effect is bad.

Utility model content

The purpose of this utility model is that being directed to the deficiencies in the prior art, it is comprehensive to provide a kind of semi-enclosed recoil Close arc extinguishing arrester.

To achieve the goals above, the technical solution of the utility model is as follows:

A kind of comprehensive arc extinguishing arrester of semi-enclosed recoil, including arrester main body；The arrester body interior is It is hollow, and be longitudinally equipped with insulating barrier along arrester main body and arrester body interior is made to form two independent spark chambers； Recoiling device is equipped with inside the spark chamber upper end in left side, lower end is set as recoil opening；It is set inside the spark chamber lower end on right side There is jet-stream wind device, upper end is equipped with the air-flow spout that outside side extends；The top of the recoiling device and the spray The bottom for penetrating airflow apparatus is respectively equipped with arc electrode；The insulating barrier is equipped with wall electrode.

The further explanation of the utility model, the recoiling device are mainly made of recoil tube and arrester；Described Recoil tube is open at one end, and arrester is fixedly mounted in the other end, and recoiling device is made to become inner hollow, open at one end, another end seal The semiclosed pipe fitting closed；The arrester and arc electrode is electrically connected.

The further explanation of the utility model, the opening of the recoil tube, which is equipped with, leads arc ring I.

The further explanation of the utility model, the jet-stream wind device is mainly by jet-stream wind generating device and injection Cylinder composition；Be inside the spraying canister it is hollow, spraying canister is open at one end, and the other end is fixedly mounted on jet-stream wind generating device On, the jet-stream wind generating device bottom and arc electrode are electrically connected.Jet-stream wind generating device can be using invention The first invention achievement of people can also such as application No. is 201420140125.X, 201821264900.7,201811319479.X Using existing jet-stream wind arc extinguishing product etc. currently on the market.

The further explanation of the utility model, the spraying canister opening are equipped with and lead arc ring II.

The further explanation of the utility model, the wall electrode is using electrode slice or compression arc-extinguishing tube or recoil Pipe.

The further explanation of the utility model, the inside of the compression arc-extinguishing tube, which is equipped with, leads arc ball.

The further explanation of the utility model, the arrester body outer surface are equipped with several skirts.The arrester Increase skirt outside structure, enhances creepage distance, avoid electric arc creeping discharge.

The further explanation of the utility model, the air-flow spout that the outside side extends Open Side Down inclination.

The further explanation of the utility model, the comprehensive arc extinguishing arrester device of the semi-enclosed recoil pass through company respectively Connect installation drawing at the top of insulator both ends, one of them semi-enclosed recoiling device to recoil in comprehensive arc extinguishing arrester Arc electrode and insulator low-pressure end are electrically connected, another semi-enclosed jet-stream wind device to recoil in comprehensive arc extinguishing arrester The arc electrode and insulator high-voltage end of bottom are electrically connected, and between the comprehensive arc extinguishing arrester of the two semi-enclosed recoils Form the air gap.

The further explanation of the utility model, arrester and leads arc ring I by the metal or nonmetallic materials structure of strong electric conductivity At, such as such as copper, aluminium, tungsten, nickel, iron, graphite material；Recoil tube is made of the nonconductive metal material of high-intensitive, strong pressure resistance, such as The non-conducting materials such as ceramal, rare-earth ceramic, Graphene-ceramic composite material, organic ceramic.

The further explanation of the utility model, lower electrode and leads arc ring II by the metal or nonmetallic materials structure of strong electric conductivity At, such as copper, aluminium, tungsten, nickel, iron, graphite material；Spraying canister is made of the nonconductive metal material of high-intensitive, strong pressure resistance, is such as closed The non-conducting materials such as golden ceramics, rare-earth ceramic, Graphene-ceramic composite material, organic ceramic.

The principles of the present invention:

The device is installed in parallel at insulator both ends, and the shape between the comprehensive arc extinguishing arrester of two semi-enclosed recoils At the air gap.According to national standard, when size, that is, gap length of the device meets Insulation Coordination, the water of resistance to thunder of the device It is flat to be lower than insulator, therefore when lightning surge invades insulator, the unit protection insulator will be first passed through.

When lightning stroke shaft tower or transmission line of electricity lightning conducter, arrester flashover low-pressure end is caused to begin with thunder-strike current by exhausted Edge substring low-pressure end, lightning current will pass through the electrode on the arrester device in parallel with insulator low-pressure side.Electric arc can pass through The electrode is pulled on the left of the present apparatus inside spark chamber, be will receive into the electric arc in the spark chamber of left side and is cut inside recoiling device Disconnected and external truncation double action, so that most of arc extinction.Remaining electric arc enters in the spark chamber of right side along wall electrode, The spraying canister opening of jet-stream wind device in middle right side spark chamber leads arc ring II, in the work for leading arc ring II and wall electrode Under, remaining electric arc enters the jet-stream wind generating device in the spark chamber of right side, the arc current triggering gas hair of circulation The induction power supply of raw device can generate an induced current, and induced current will trigger the movement of arc extinguishing gas ball, generate high speed and high pressure gas Body acts on electric arc, and remaining electric arc is blown and electric arc can not restrike.

When transmission line of lightning strike or route generation lightning induced voltage, insulator arc-over high-voltage end is caused to begin with lightning stroke electricity Stream passes through, and the electric arc of formation can pass through the arrester device of high-voltage end and be pulled into arc extinguishing on the right side of arrester device by electrode Intracavitary, the induction power supply of the current trigger gas generator to circulate in the electrode of high-voltage end can generate an induced current, incude Electric current will trigger the movement of arc extinguishing gas ball, generate high speed and high pressure gas and act on electric arc, most of electric arc is directly blown and electricity Arc can not restrike.Remaining electric arc is entered in the spark chamber of left side by wall electrode, the recoiling device recoil tube opening in the spark chamber of left side Place leads arc ring I, and under the action of leading arc ring I and wall electrode, the electric arc into recoiling device be will receive inside recoiling device Truncation and external truncation double action, so that electric arc is truncated.

When electric arc is from when leading arc ring and entering recoiling device, since electric arc is that have elastically-deformable plasma, will receive The limitation of recoil tube wall, when electric arc enters recoil tube beginning, density, speed, temperature increase, and lead to the increase of overpressure, most Generate eventually and press quick-fried effect, electric arc impact recoils the arrester of bottom of the tube, electric arc blocking recoil bottom of the tube by reversed elastic force, 180 ° of change occurs for the direction of advance of most of electric arc.The electric arc to rebound back is since speed, density, pressure are bigger, cavity effect Outer electric arc should be acted in inlet, the electric arc at recoil pipe port is caused to generate truncation.

When electric arc enters back flush line from arrester, since recoil tube is very thin, coarse thunder and lightning electric arc is entering recoil Guan Shihui shape becomes elongated electric arc, is full of entire pipeline, and in the process, air makes because of temperature raising under the influence of electric arc Air in pipeline expand and generates active force and ultimately forms the quick-fried effect of pressure, passing through for subsequent electric arc is blocked, to electric arc generation Truncation.

The utility model has the advantage that as follows:

1. jet-stream wind device is that effective extinguishing electric arc can be achieved for different electric arc directions.

2. the backsurging principle that recoiling device has can make extinguishes electric arc ability double.

3. in the spark chamber containing jet-stream wind device the hyperbar of interior generation can accelerating medium recovery strength, make electric arc Faster extinguish.

4. the wall electrode in insulating barrier center can effectively disperse arc energy, electric arc is made to be easier to extinguish.

5. use scope is wide, do not influenced by wire arrangements, shaft tower tower, polar effect.

6. electric arc is in impact arc extinguishing section arc extinguishing and destroys power frequency and builds arc channel, and guarantees that protective relaying device is not examined Feel.

7. once mounting can be reused for a long time, it is only necessary to regularly replace jet-stream wind device and recoiling device, operation at This is low.

8. effectivelying prevent insulator arc-over problem, power equipment tripping rate with lightning strike is reduced, protects electric power facility, improves power grid Reliability is conducive to electricity safety production.

9. the utility model is compared with multi-chamber series of products, have the advantage that

(1) durability compares.The gas exhausted material of multi-chamber addition is to need to toast under hot conditions to produce gas, then in high temperature Gas exhausted material under environment in multi-chamber arc-control device is consumed, and the durability of multi-chamber is bad；And what the utility model used Elements Of Expense is not present in perfusion recoil material and injection apparatus material, does not need through gas production mechanism arc extinguishing, durability is preferable.

(2) arc quenching effect compares.The indoor every two adjacent electrode of multi-cavity electric arc by when generate condensation polar effect, i.e., Electric arc temperature under adjacent electrode is lower, and low temperature electric arc baking gas exhausted material makes production gas ineffective, condensation polar effect and height Temperature baking produces the contradiction that gas is formed between arc extinguishing and makes arc quenching effect bad；And mechanism is perfused using narrow pipe in the utility model Arcing mechanisms are blown with gas is generated using the explosion of gas ball, electric arc collision generates huge arc extinguishing energy, with electric arc itself energy Amount and collision arc extinguishing and arc extinguishing gases medium recovery it is fast, arc reignition can be effectively prevent, keep arc quenching effect splendid.

(3) arc extinguishing remolding sensitivity compared with.According to above-mentioned durability and arc quenching effect, since multi-chamber durability is by high temperature It influences, and produces gas and condensed polar effect by electrode, is i.e. low temperature electric arc baking ability is extremely low, and condensation polar effect and high-temperature baking produce gas The contradiction between arc extinguishing is formed, it is bad that there are arc quenching effects when small electric arc passes through, and only passes through lower multi-chamber ability in larger electric arc It can correctly act, and big electric arc circulation will lead to relay protection movement and there is trip accident, therefore the sensitivity of multi-chamber arc extinguishing is not It is ideal；And the either big electric arc of the utility model or small electric arc exist, it is only necessary to which electric arc, which enters the utility model, to be generated The gentle ball explosion of mechanism is perfused and produces gas arc extinguishing mechanism, sensitivity is higher.

(4) method of operation compares.According to above-mentioned sensitivity analysis, the movement of multi-chamber is by system operation mode, short circuit The external factors such as electric current influence, and there are arc extinguishing blind areas, so that multi-chamber lightning protection matching is very difficult；And the utility model is not present The external factors such as system operation mode, short circuit current influence.

Detailed description of the invention

Fig. 1 is the arrester mounting means structural schematic diagram of the utility model；

Fig. 2 is the arrester schematic diagram of internal structure of an embodiment of the present invention；

Fig. 3 is the utility model recoiling device structural schematic diagram；

Fig. 4 is the jet-stream wind apparatus structure schematic diagram of the utility model；

Fig. 5 is the arrester schematic diagram of internal structure of another embodiment of the utility model；

Fig. 6 is the arrester schematic diagram of internal structure of the utility model another embodiment；

Fig. 7 is the arrester schematic diagram of internal structure of another embodiment of the utility model.

Wherein, above-mentioned each icon note and its corresponding component names are as follows:

1- arrester main body, 2- air-flow spout, 3- insulating barrier, 4- recoiling device, 5- jet-stream wind device, 6- wall electricity Pole, 7- spark chamber, the skirt 8-, 41- recoil tube, 42- arrester, 411- lead arc ring I, 51- jet-stream wind generating device, 52- spray Shooting cylinder, 521- lead arc ring II.

Specific embodiment

In conjunction with the preferred embodiment and its attached drawing is further unrestricted detailed to technical solutions of the utility model work Explanation.

Embodiment 1:

As in Figure 2-4, the comprehensive arc extinguishing arrester of a kind of semi-enclosed recoil, including arrester main body 1；Described is lightning-arrest It is hollow inside device main body 1, and to form two inside arrester main body 1 along the longitudinal insulating barrier 3 that is equipped with of arrester main body 1 A independent spark chamber 7；Recoiling device 4 is equipped with inside the spark chamber upper end in left side, lower end is set as recoil opening；On right side Jet-stream wind device 5 is equipped with inside spark chamber lower end, upper end is equipped with the air-flow spout 2 that outside side extends；The recoil dress It sets 4 top and the bottom of the jet-stream wind device 5 is respectively equipped with arc electrode；The insulating barrier 3 is equipped with Wall electrode 6.

The recoiling device 4 is mainly made of recoil tube 41 and arrester 42；The recoil tube 41 is open at one end, separately Arrester 42 is fixedly mounted in one end, and recoiling device 4 is made to become inner hollow, open at one end, the closed semiclosed pipe fitting of the other end； The arrester 42 and arc electrode is electrically connected.

The jet-stream wind device 5 is mainly made of jet-stream wind generating device 51 and spraying canister 52；The injection Cylinder 52 inside be it is hollow, spraying canister 52 is open at one end, and the other end is fixedly mounted on jet-stream wind generating device 51, the spray Emanate 51 bottom of flow generating apparatus and arc electrode is electrically connected.

The wall electrode 6 uses electrode slice.

Embodiment 2:

As shown in figure 5, the present embodiment the difference from embodiment 1 is that: the wall electrode 6 is using compression arc-extinguishing tube and pressure The inside of contracting arc-extinguishing tube is equipped with and leads arc ball.The opening of the recoil tube 41 is equipped with and leads arc ring I 411；The spray 52 opening of shooting cylinder is equipped with and leads arc ring II 521.

Embodiment 3:

As shown in fig. 6, the present embodiment the difference from example 2 is that: the wall electrode 6 use recoil tube.Recoil tube The semiclosed tube body of lightning pole is connect for open at one end, other end installation.1 outer surface of arrester main body is equipped with several skirts Side 8.

Embodiment 4:

As shown in fig. 7, the present embodiment the difference from example 2 is that: the air-flow spout that the outside side extends Inclination that Open Side Down.

In practical applications, as shown in Figure 1, the present apparatus can be installed in parallel at insulator both ends, have as one and go out The shunting means of arc function, one of them semi-enclosed recoiling device top recoiled in comprehensive arc extinguishing arrester are connected with electrode Connect and be mounted on insulator low-pressure end, another semi-enclosed jet-stream wind bottom of device to recoil in comprehensive arc extinguishing arrester with Electrode is connected and is mounted on the corresponding high-voltage end of insulator, and between the comprehensive arc extinguishing arrester of the two semi-enclosed recoils Form the air gap.Be flashover air duct among the device, by Insulation Coordination, be struck by lightning shaft tower or lightning conducter when the thunder that generates It hits overvoltage and preferentially punctures parallel port protection insulator chain, it is lightning-arrest that the electric arc of formation enters the comprehensive arc extinguishing of semi-enclosed recoil Device.

When lightning stroke shaft tower or transmission line of electricity lightning conducter, arrester flashover low-pressure end is caused to begin with thunder-strike current by exhausted Edge substring low-pressure end is electrically connected with the insulator chain of the electrode of recoiling device being connected and low-pressure end side.Matched by insulation It closes, is struck by lightning shaft tower or Lightning Over-voltage that when lightning conducter generates preferentially punctures parallel port protection insulator chain, cause insulator Flashover low-pressure end has thunder-strike current process, and lightning current will pass through the electrode on the arrester device in parallel with insulator low-pressure side. Electric arc can be pulled on the left of the present apparatus inside spark chamber by the electrode, will receive instead into the electric arc in the spark chamber of left side Truncation and external truncation double action inside flushing device, so that most of arc extinction.Remaining electric arc enters the right side along wall electrode In the spark chamber of side, wherein the spraying canister opening of the jet-stream wind device in the spark chamber of right side leads arc ring II, arc ring is being led II and wall electrode under the action of, remaining electric arc enter right side spark chamber in jet-stream wind generating device, the electric arc of circulation The induction power supply of current trigger gas generator can generate an induced current, and induced current will trigger the movement of arc extinguishing gas ball, It generates high speed and high pressure gas and acts on electric arc, remaining electric arc is blown and electric arc can not restrike.

When transmission line of lightning strike or route generation lightning induced voltage, insulator arc-over high-voltage end is caused to begin with lightning stroke electricity Stream passes through, at this time the electrode being connected with jet-stream wind device in the arrester device on insulator high-voltage end and high-voltage end side Insulator chain be connected；And this arrester device is corresponding with the arrester device on low-pressure end, and centre is that flashover air is logical Road, by Insulation Coordination and corresponding volt-second characteristic, be struck by lightning transmission pressure when the Lightning Over-voltage that generates preferentially puncture simultaneously connection Pipe protection insulator chain, the electric arc of formation can pass through the arrester device of high-voltage end and be pulled into arrester device by electrode In the spark chamber of right side, the induction power supply of the current trigger gas generator to circulate in the electrode of high-voltage end can generate an induced electricity Stream, induced current will trigger the movement of arc extinguishing gas ball, generate high speed and high pressure gas and act on electric arc, most of electric arc is directly blown Disconnected and electric arc can not restrike.Remaining electric arc is entered in the spark chamber of left side by wall electrode, the recoiling device recoil in the spark chamber of left side Arc ring I is led at tube opening, under the action of leading arc ring I and wall electrode, the electric arc into recoiling device will receive recoil dress Internal truncation and external truncation double action are set, so that electric arc is truncated.

In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " left side ", The orientation or positional relationship of the instructions such as " right side ", "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, It is merely for convenience of description the utility model, rather than the device or element of indication or suggestion meaning there must be specific side Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Finally it is noted that above embodiments are only to illustrate the technical solution of the utility model, rather than it is limited System.Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should be managed Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement；And these are modified or replaceed, various embodiments of the utility model that it does not separate the essence of the corresponding technical solution The spirit and scope of technical solution.

Claims

1. a kind of comprehensive arc extinguishing arrester of semi-enclosed recoil, including arrester main body (1)；It is characterized by: described is lightning-arrest It is hollow inside device main body (1), and is longitudinally equipped with insulating barrier (3) along arrester main body (1) and makes in arrester main body (1) Portion forms two independent spark chambers (7)；Recoiling device (4) are equipped with inside the spark chamber upper end in left side, lower end is set as recoiling Opening；Jet-stream wind device (5) are equipped with inside the spark chamber lower end on right side, upper end is equipped with the air-flow spout that outside side extends (2)；The top of the recoiling device (4) and the bottom of the jet-stream wind device (5) are respectively equipped with arc electrode；Institute The insulating barrier (3) stated is equipped with wall electrode (6).

2. the comprehensive arc extinguishing arrester of semi-enclosed recoil according to claim 1, it is characterised in that: the recoiling device (4) it is mainly made of recoil tube (41) and arrester (42)；The recoil tube (41) is open at one end, and other end fixed installation connects It dodges device (42), recoiling device (4) is made to become inner hollow, open at one end, the closed semiclosed pipe fitting of the other end；Described connects sudden strain of a muscle Device (42) and arc electrode are electrically connected.

3. the comprehensive arc extinguishing arrester of semi-enclosed recoil according to claim 2, it is characterised in that: the recoil tube (41) opening is equipped with and leads arc ring I (411).

4. the comprehensive arc extinguishing arrester of semi-enclosed recoil according to claim 1, it is characterised in that: the jet-stream wind Device (5) is mainly made of jet-stream wind generating device (51) and spraying canister (52)；Be inside the spraying canister (52) it is hollow, Spraying canister (52) is open at one end, and the other end is fixedly mounted on jet-stream wind generating device (51), and the jet-stream wind occurs Device (51) bottom and arc electrode are electrically connected.

5. the comprehensive arc extinguishing arrester of semi-enclosed recoil according to claim 4, it is characterised in that: the spraying canister (52) opening is equipped with and leads arc ring II (521).

6. the comprehensive arc extinguishing arrester of semi-enclosed recoil according to claim 1, it is characterised in that: the wall electrode (6) using electrode slice or compression arc-extinguishing tube or recoil tube.

7. the comprehensive arc extinguishing arrester of semi-enclosed recoil according to claim 6, it is characterised in that: the compression arc extinguishing The inside of pipe is equipped with and leads arc ball.

8. the comprehensive arc extinguishing arrester of semi-enclosed recoil according to claim 1, it is characterised in that: the arrester master Body (1) outer surface is equipped with several skirts (8).

9. the comprehensive arc extinguishing arrester of semi-enclosed recoil according to claim 1, it is characterised in that: the outside side The air-flow spout (2) of extension Open Side Down inclination.

10. the comprehensive arc extinguishing arrester of semi-enclosed recoil according to claim 1, it is characterised in that: described is semiclosed The comprehensive arc extinguishing arrester device of formula recoil passes through connection gold utensil respectively and is mounted on insulator both ends, one of them semi-enclosed recoil The arc electrode at the top of recoiling device (4) in comprehensive arc extinguishing arrester is electrically connected with insulator low-pressure end, another half envelope The arc electrode of jet-stream wind device (5) bottom in the comprehensive arc extinguishing arrester of enclosed recoil electrically connects with insulator high-voltage end It connects, and forms the air gap between the comprehensive arc extinguishing arrester of the two semi-enclosed recoils.