CN110571649A - Single-disc wheel type solid-phase arc extinguishing lightning protection device - Google Patents
Single-disc wheel type solid-phase arc extinguishing lightning protection device Download PDFInfo
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- CN110571649A CN110571649A CN201910985094.5A CN201910985094A CN110571649A CN 110571649 A CN110571649 A CN 110571649A CN 201910985094 A CN201910985094 A CN 201910985094A CN 110571649 A CN110571649 A CN 110571649A
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- Prior art keywords
- arc extinguishing
- arc
- shell
- gas
- pill
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
- H01B17/46—Means for providing an external arc-discharge path
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
- H01B17/48—Means for obtaining improved distribution of voltage; Protection against arc discharges over chains or other serially-arranged insulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/02—Means for extinguishing arc
- H01T1/08—Means for extinguishing arc using flow of arc-extinguishing fluid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/02—Means for extinguishing arc
- H01T1/08—Means for extinguishing arc using flow of arc-extinguishing fluid
- H01T1/10—Means for extinguishing arc using flow of arc-extinguishing fluid with extinguishing fluid evolved from solid material by heat of arc
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/02—Details
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a single-wheel solid-phase arc-extinguishing lightning protection device, wherein an arc-extinguishing lightning protection body comprises a device shell, a metal screw, an induction coil, a central shaft, an arc striking ring, an arc extinguishing cylinder, an arc extinguishing rotating disc and a plane volute spring, the metal screw is arranged at the top end of the device shell, the induction coil is embedded and arranged in the shell between the inner wall and the outer wall of the top end of the device shell, the lower end of the screw rod passes through the induction coil and extends into the device shell, the inner wall of the top end of the arc extinguishing cylinder is provided with an arc striking ring made of metal material, a central shaft is arranged in the center of a cavity of the device shell, an arc extinguishing turntable is rotatably arranged on the central shaft, and the center of the arc-extinguishing turntable is provided with a plane volute spiral spring for pushing the arc-extinguishing turntable to rotate, and a plurality of placing grooves for placing arc-extinguishing gas pills along the radial direction are uniformly arranged on the circumferential side wall of the arc-extinguishing turntable. The invention avoids the leakage of air flow in the process of switching the turnplate and improves the reliability of switching the turnplate.
Description
Technical Field
The invention belongs to the technical field of lightning protection and arc extinction, and particularly relates to a single-disk wheel type solid-phase arc extinction and lightning protection device.
Background
Lightning protection of a power transmission line is always important content of lightning protection work of a power department, and lightning faults are still one of important factors influencing the safety of a power grid. Impact flashover caused by lightning strike on a power transmission line causes flashover of a line insulator, then large power frequency follow current is generated, an insulator string and hardware fittings are damaged, and line accidents are caused. The protection of the power department is generally realized by additionally arranging a line lightning protector on a power transmission line. The lightning protector is an electrical device which can release lightning or release overvoltage energy for operating a power system, protect electrical equipment from being damaged by instantaneous overvoltage, cut off follow current and avoid causing system grounding short circuit.
Overhead transmission line solid phase air current arc extinguishing lightning protection gap device, parallelly connected installation is in circuit insulator chain both ends, and the flashover voltage between the protection gap is less than by protection insulator chain to when transmission line suffered the thunderbolt puncture earlier than by protection insulator chain breakdown, when the breakdown discharges, trigger signal and starting drive arrangement are inducted automatically to the inside signal inductor of solid phase arc extinguishing device, and the air shot produces high-speed air current in the twinkling of an eye and causes along vertically strikeing, cooling to extinguishing to electric arc. The existing solid-phase airflow arc extinguishing lightning protection device is of a disc structure, a plurality of air ball turntables are arranged inside the disc type solid-phase airflow arc extinguishing lightning protection device, each air ball turntable can rotate under the action of a central shaft, after air balls on a trigger position in the turntables are triggered, strong airflow is sprayed out of an arc extinguishing cylinder below the air balls and acts on electric arcs, and the purpose of extinguishing the electric arcs is achieved. When the first gas pill in the gas pill rotating disc is triggered, the gas pill rotating disc rotates to the next gas pill triggering position to be clamped with the upper part of the arc extinguishing cylinder again, and the solid-phase airflow can be triggered again. Present arc extinguishing bucket sprays the air current and can produce at arc extinguishing carousel and arc extinguishing barrel junction and reveal, consider that the air current of concentrating is not abundant inadequately to the electric arc effect, and arc control device width broad, it is bulky, the arc extinguishing barrel removes and also has certain problems with the cooperation between the carousel switching, the screens makes the air shot in the air shot carousel spray the air current and can produce at arc extinguishing carousel and arc extinguishing barrel junction and reveal, thereby influence arc extinguishing ability and the lightning protection effect of arc extinguishing lightning protection device, for this reason, it acts on electric arc and can promote the intensity of arc extinguishing air current through the leakproofness that improves arc extinguishing air current passageway to hope to spray the air current maximize, it is better to need to set up a seal, the more reliable subassembly of screens.
Disclosure of Invention
The invention aims to provide a single-disk wheel type solid-phase arc extinguishing lightning protection device, which avoids the leakage of airflow in the switching process of a rotating disk, improves the switching reliability of the rotating disk, and ensures that the triggering end of an arc extinguishing gas pill is smoothly contacted with an arc extinguishing cylinder and reliably contacted and switched. In order to achieve the purpose, the invention adopts the following technical scheme:
According to one aspect of the invention, a single-reel solid-phase arc-extinguishing lightning protection device is provided, which comprises an arc-extinguishing lightning protection body fixedly mounted on a cross arm or one end of an insulator string through a connecting hardware fitting, wherein the arc-extinguishing lightning protection body comprises a device shell, a metal screw, an induction coil, a central shaft, an arc striking ring, an arc extinguishing cylinder, an arc extinguishing turntable and a plane volute spring; the inner wall of the top end of the arc extinguishing cylinder is provided with an arc striking ring made of metal, the arc extinguishing cylinder penetrates through the device shell and is in direct contact connection with the placing groove on the circumferential side wall of the arc extinguishing turntable through the arc striking ring, and the arc striking ring is electrically connected with the lower end of the screw rod at the top end of the device shell through an arc guiding grounding wire; the device shell's cavity central authorities level sets up the center pin rotationally sets up on the center pin the arc extinguishing carousel to establish at arc extinguishing carousel central point and promote arc extinguishing carousel pivoted plane volute spring, follow evenly be provided with a plurality ofly and along the standing groove that is used for placing arc extinguishing gas ball of radial direction on the circumference lateral wall of arc extinguishing carousel, the arc extinguishing gas ball in this standing groove through insulated wire with induction coil carries out electrical connection, has an expanding spring at arc extinguishing gas ball overcoat, and this expanding spring's one end and arc extinguishing gas ball are connected, expanding spring's the other end is connected with the inner circle of arc extinguishing carousel.
Preferably, the arc extinguishing turntable and the arc extinguishing cylinder are triggered in a clamping and dislocation way, when the arc extinguishing gas pill is at the triggering position, the expansion spring is in an extension state, the lower end of the arc extinguishing gas pill extends into the airflow channel at the lower end of the device shell, at the moment, the arc extinguishing cylinder is clamped between the placement groove on the circumferential side wall of the arc extinguishing turntable and the airflow channel at the lower end of the device shell, the arc extinguishing gas pill is connected with the induction coil and the metal screw through the insulated conducting wire to form a current loop, the arc extinguishing gas pill at the triggering position waits for a triggering signal, strong airflow is generated after the arc extinguishing gas pill is triggered, the strong airflow is ejected from the airflow channel in the arc extinguishing cylinder and acts on electric arc, the expansion spring is compressed to extinguish the arc by the pushing action force of the strong airflow generated after the arc extinguishing gas pill bursts, the arc extinguishing gas pill is successfully dislocated and the arc extinguishing turntable can rotate under the action, and (4) clamping the arc extinguishing gas pill again until the next arc extinguishing gas pill enters the gas pill triggering position.
In a further preferred embodiment of the present invention, the counting pointer is provided on an outer side surface of the device case, and the counting pointer is fixed to a central shaft extending outside the device case.
In a further preferred embodiment of the above aspect, the arc conducting ground wire and the insulated wire are embedded in a housing of the device housing.
In a further preferred embodiment of the above scheme, the arc extinguishing gas pill includes a gas pill shell, a gas pill body hermetically wrapped in the gas pill shell, and a first trigger electrode and a second trigger electrode disposed at the top end of the gas pill shell, the first trigger electrode extends out of the gas pill shell from the top end of the gas pill shell, the first trigger electrode is in insulated contact with the gas pill shell, the second trigger electrode extends out of the top end of the gas pill shell to the outer part or the top end of the inner wall of the gas pill shell, and the first trigger electrode is in conductive connection with the gas pill shell, the bottom of the gas pill shell is provided with a gas orifice, the lower end of the gas pill shell extends into the inner wall of the top end of the arc extinguishing cylinder from the device shell, the arc striking ring is sleeved between the inner wall of the top end of the arc extinguishing cylinder and the outer wall of the lower end of the gas pill shell, the outer part of the top end of the gas pill shell is connected with the inner ring of the arc extinguishing turntable through a telescopic spring.
The above scheme is further preferred that a sleeve is sleeved on the two-thirds periphery of the lower part of the air pill body, a lower sealing gasket 146 arranged on the sleeve is arranged on the inner wall of the bottom end of the air pill shell, and the sealing gasket is distributed on the outer side of the air injection hole.
According to a further preferred mode of the scheme, the top end of the air pill body is provided with a supporting seat, and a supporting gasket is arranged between the inner wall of the top end of the air pill shell and the supporting seat.
According to a further preferred mode of the scheme, a supporting piece is vertically arranged between the supporting gasket and the top end inner wall of the air ball shell.
In summary, due to the adoption of the technical scheme, the invention has the following technical effects:
1. The single-disk wheel type solid-phase arc extinguishing lightning protection device has the advantages of simple structure, reasonable design, strong arc extinguishing capability and stable and reliable work; the unique clamping structure is designed, so that the whole rotating mechanism can be ensured to reliably rotate and reliably stop, and the trigger end of the arc extinguishing gas pill can be ensured to smoothly contact and reliably trigger with the trigger electrode of the device. The rotating mechanism is packaged into a whole, so that the problems of wetting, rusting, corrosion and the like can be avoided, and the stability of the mechanism can be reliably ensured.
2. The counting type solid-phase arc extinguishing lightning protection device can count, is convenient for later maintenance and replacement, and can realize quick supplement of arc extinguishing gas pills by opening the side cover of the single-wheel type solid-phase arc extinguishing lightning protection device and replacing the whole arc extinguishing turntable after the arc extinguishing gas pills of the device are used up, so that manpower and material resources are fully saved, and the lightning protection reliability is improved.
Drawings
FIG. 1 is a schematic view of an installation of a single-wheel solid-phase arc extinguishing lightning protection device according to the present invention;
Fig. 2 is a schematic structural diagram of a single-reel solid-phase arc-extinguishing lightning protection device according to the present invention.
Fig. 3 is a schematic view of the arrangement structure of the arc extinguishing gas pill on the arc extinguishing rotating disk.
Fig. 4 is a schematic diagram of a trigger circuit of a single-reel solid-phase arc extinguishing lightning protection device according to the present invention.
FIG. 5 is a schematic view of the installation structure of the arc striking ring of the present invention
FIG. 6 is a schematic view of the connection between the arc extinguishing gas pill, the arc initiation ring and the arc chute of the present invention;
FIG. 7 is a schematic diagram of the structure of the arc extinguishing gas pill of the present invention;
In the drawing, the arc extinguishing lightning protection body 100, the cross arm 101, the insulator string 1, the high voltage electrode 2, the metal screw 3, the induction coil 4, the insulated conducting wire 5, the central shaft 6, the arc conducting grounding wire 7, the arc striking ring 8, the arc extinguishing cylinder 9, the arc extinguishing rotating disk 10, the device shell 11, the counting pointer 12, the placing groove 14, the arc extinguishing gas pill 14a, the expansion spring 13, the flat spiral spring 15, the airflow channel 90, the gas pill shell 140, the gas pill body 141, the first trigger electrode 142, the second trigger electrode 143, the gas injection hole 144, the sleeve 145, the lower sealing gasket 146, the supporting seat 147, the supporting gasket 147a and the supporting piece 147 b.
Detailed Description
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings by way of examples of preferred embodiments. It should be noted, however, that the numerous details set forth in the description are merely for the purpose of providing the reader with a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
as shown in fig. 1, 2, 3 and 4, a single-wheel solid-phase arc-extinguishing lightning protection device according to the present invention includes an arc-extinguishing lightning protection body 100, the arc-extinguishing lightning protection body 100 is fixedly mounted on a cross arm 101 or one end of an insulator string 1 by a connecting metal fitting, the arc-extinguishing lightning protection body 100 includes a device housing 11, a metal screw 3, an induction coil 4, a central shaft 6, an arc striking ring 8, an arc extinguishing cylinder 9, an arc-extinguishing rotating disc 10 and a flat spiral spring 15, the metal screw 3 is disposed at the top end of the device housing 11, the induction coil 4 is embedded in a housing between the inner wall and the outer wall of the top end of the device housing 11, the upper end of the metal screw 3 is connected with the cross arm 101 by a metal fitting, the lower end of the screw 3 extends into the device housing 11 through the induction coil 4, a gas-shot triggering position is disposed at the bottom of the device housing 11, the arc extinguishing cylinder 9 is arranged below the air pill triggering position; an arc striking ring 8 made of metal is arranged on the inner wall of the top end of the arc extinguishing cylinder 9, the arc extinguishing cylinder 9 penetrates through a device shell 11 and is directly in contact connection with a placing groove 14 on the circumferential side wall of the arc extinguishing rotating disc 10 through the arc striking ring 8, and as shown in fig. 5, the arc striking ring 8 is electrically connected with the lower end of a screw rod 3 at the top end of the device shell 11 through an arc guiding grounding wire 7; the central shaft 6 is horizontally arranged in the center of the cavity of the device shell 11, the arc-extinguishing rotating disc 10 is rotatably arranged on the central shaft 6, a planar volute spring 15 for pushing the arc-extinguishing rotating disc 10 to rotate is arranged in the central position of the arc-extinguishing rotating disc 10, a plurality of placing grooves 14 for placing arc-extinguishing gas pills 14a in the radial direction are uniformly arranged on the circumferential side wall of the arc-extinguishing rotating disc 10, and the arc-extinguishing gas pills 14a in the placing grooves 14 are electrically connected with the induction coil 4 through insulated wires 5; when the air gap is just flashed, namely the change rate of primary current (namely lightning current) passed by the metal screw 4 at the starting point of an electric arc is maximum, the induction voltage of the induction coil 4 is maximum, the generated secondary current is maximum and is enough to trigger the arc extinguishing gas pill 14a, an expansion spring 13 is sleeved outside the arc extinguishing gas pill 14a, one end of the expansion spring 13 is connected with the arc extinguishing gas pill 14a, and the other end of the expansion spring 13 is connected with the inner ring of the arc extinguishing rotating disc 10; the counting pointer 12 is arranged on the outer side face of the device shell 11, the counting pointer 12 is fixed on the central shaft 6 extending out of the device shell 11, the arc conducting grounding wire 7 and the insulated conducting wire 5 are embedded in the shell of the device shell 11, and the side face, the top face and/or the ground of the lightning protection device shell 11 are/is provided with digital marks or different color marks, so that the reading can be reliably and conveniently carried out, and the arc extinguishing turntable 10 can be replaced in time. In this embodiment, when installing, the airflow nozzle of the arc extinguishing cylinder 9 points to the high voltage electrode 3 installed on the transmission line, the high voltage electrode 3 can be installed on the transmission line, the high voltage electrode 2 is fixed on the conductor, and graphite is used as the arc striking electrode, the arc extinguishing lightning protection body 100 of the invention is provided with the arc striking ring 8, the arc guiding grounding wire 8 and the metal screw 3, which ensure that the arc can be formed along the established track, namely the main gap and smoothly enter the single-disc wheel type solid phase arc extinguishing lightning protection device, thereby avoiding the arc from burning the insulator along the surface of the insulator string 1, the arc is generated at the place, after the arc enters the arc striking ring 8, because the metal screw is sheathed with a rogowski coil (induction coil 4), the existence of the arc causes the rogowski coil to induce current, one end of the rogowski coil is connected to one triggering pin of the arc extinguishing gas pill 14a, the other end of the rogowski coil is arranged on the device, the induction coil 4 is penetrated by the metal screw 3, when the air gap is just in flashover, namely the change rate of primary current (namely lightning current) passing through the metal screw 3 at the starting point of the electric arc is maximum, the whole loop is conducted, the arc extinguishing gas pill acts smoothly, the induction coil 4 induces the maximum induction voltage, and the generated secondary current is maximum, so that the arc extinguishing gas pill 14a is triggered sufficiently, and the electric arc is cut off.
In the present invention, as shown in fig. 6, the arc extinguishing gas pill 14a includes a gas pill housing 140, a gas pill body 141 hermetically covered in the gas pill housing 140, and a first trigger electrode 142 and a second trigger electrode 143 disposed at the top end of the gas pill housing 141, the first trigger electrode 142 extends from the top end of the gas pill body 141 to the outside of the gas pill housing 140, the first trigger electrode 142 is in insulating contact with the gas pill housing 140, the second trigger electrode 143 extends from the top end of the gas pill body 141 to the outside or the top end of the inner wall of the gas pill housing 140, the first trigger electrode 142 is in conductive connection with the gas pill housing 140, an air injection hole 144 is disposed at the bottom of the gas pill housing 140, the lower end of the gas pill housing 140 extends from the device housing 11 to the inner wall at the top end of the arc extinguishing cylinder 9, the arc guiding ring 8 is sleeved between the inner wall at the top end of the arc extinguishing cylinder 9 and the outer wall at the lower end of the gas pill housing 140, the outer part of the top end of the gas pill shell 141 is connected with the inner ring of the arc extinguishing rotating disc 10 through a telescopic spring 13. The arc striking ring 8 is electrically connected with the metal screw rod 3 outside the top end of the device shell 11 through an arc guiding grounding wire 7 made of an arc guiding material; one end of a lead of the induction coil 4 is connected with a first trigger electrode 142 (pin) at the top end of the balloon body 141 through an insulated lead 5, and the other end of the lead of the induction coil 4 is connected with a device shell 11 arranged near the lower end of the balloon body 141 through another insulated lead; the induction coil 4 is penetrated by the metal screw rod, when the air gap is just in flashover, namely the change rate of primary current (namely lightning current) passed by the metal screw rod 4 at the starting point of the electric arc is maximum, the induction voltage of the induction coil 4 is maximum, and the generated secondary current is maximum enough to trigger the air pill body 141, so that the simultaneity of the starting point of the electric arc, the starting point of the secondary current and the starting point of the air current arc extinguishing is realized, the arc extinguishing effect with fast control and strong arc extinguishing effect is achieved, and the electric arc can be quickly extinguished at the moment of the ignition of the electric arc; the counting pointer 12 is arranged on the side surface of the shell of the lightning protection device and is fixed at the axis position of the arc extinguishing turntable; the arc extinguishing rotating disc 10 is arranged in the shell of the lightning protection device, the circle center position of the arc extinguishing rotating disc 10 is connected with the device shell 11 through a central shaft, the arc extinguishing rotating disc 10 can rotate around the central shaft, and a plane volute spring 15 for pushing the arc extinguishing rotating disc 10 to rotate is arranged in the central position of the arc extinguishing rotating disc 10; the arc extinguishing rotating disc 10 is provided with a plurality of arc extinguishing gas pills 14a along the circumferential direction, because each arc extinguishing gas pill 14a is provided with two trigger pins, one of the two trigger pins is connected with one end of a lead of the induction coil 4, and the other trigger pin of each arc extinguishing gas pill 14a is connected and contacted with a metal shell (a gas pill shell 140) of the arc extinguishing gas pill 14 a; an expansion spring 13 is sleeved outside two trigger pins at the upper end of each gas ball, one end of each expansion spring 13 is connected with an arc extinguishing gas ball 14a, the other end of each expansion spring 13 is connected with an inner ring of an arc extinguishing turntable 10, once an electric arc is generated, the whole loop is conducted, the arc extinguishing gas balls 14a can smoothly act to cut off the electric arc, after the action is completed, as the arc extinguishing gas balls 14a are respectively and independently arranged on a disc-shaped turntable mechanism (arc extinguishing turntable 10), a rotating device (a plane volute spring 15) is packaged in the arc extinguishing turntable 10, once one arc extinguishing gas ball acts, the clamping position of the arc extinguishing gas ball is released, the arc extinguishing turntable 10 rotates to the clamping position of the next arc extinguishing gas ball, the lower end clamping position of the arc extinguishing gas ball 14a clamps an air flow channel (arc extinguishing cylinder 9) on a single-disc type solid-phase arc extinguishing device shell, arc extinguishing carousel 10 connects the count pointer of counter, and there is arc extinguishing gas ball action number of times outside side at device shell 11, and the pointer will rotate once in the action, directional corresponding digit or colour, and after arc extinguishing gas ball 14a used up, can demolish lightning protection device's side cap, change the carousel, can reuse, simple to operate.
in the present invention, as shown in fig. 6, a sleeve 145 is sleeved on the two-thirds of the periphery of the lower portion of the gas pill body 141, a lower sealing gasket 146 disposed on the sleeve 145 is disposed on the inner wall of the bottom end of the gas pill housing 140, the sealing gasket 146 is distributed outside the gas injection hole 144, the gas pill housing 140 and the sleeve 145 are both hard structures, when the gas pill body 141 is triggered, the gas pill body 141 generates a high-speed solid phase gas flow in the gas pill housing 140, the solid phase gas flow acts on an electric arc through the arc extinguishing cylinder 2, because the sealing gasket 146 is disposed outside the gas injection hole 144, the residual gas flow is prevented from remaining in the gap between the bottom surfaces of the gas pill housing 140 and the sleeve 145, so that all the solid phase gas flow injection holes 144 are ejected outwards to the arc extinguishing cylinder 9, when the gas pill body 141 is triggered to generate a high-speed solid phase gas flow, the sleeve 145 radially restrains the gas, and, the explosion combustion speed of the gas pill body 141 in the gas pill shell 140 is accelerated, the high-speed solid-phase airflow is from the air injection holes 144, the gas pill shell 140 tightly coats the gas pill body 141, the thickness of the inner wall of the gas pill shell 140 can be processed, and the gas pill body 141 cannot deviate or expand when triggered.
In the present invention, as shown in fig. 7, a support seat 147 is disposed at the top end of the airpill body 141, a support gasket 147a is disposed between the inner wall of the top end of the airpill shell 141 and the support seat 147 to seal the inner wall of the top end of the airpill shell 141 and provide a good buffer effect when the support seat 147 is expanded and pressed, the support seat 147 is disposed at the top end of the airpill body 141 to tightly nest and wrap the airpill body 141 in the axial and radial directions, so that the airpill body 141 is not deflected or expanded when triggered.
In the present invention, as shown in fig. 7, a supporting member 147b is vertically disposed between the supporting pad 146a and the top end inner wall of the airpill housing 140, when the airpill body 141 is triggered, the supporting seat 147 and the supporting pad 147a are subjected to an excessive pressure when they are expanded and pressed, and the supporting member 147b enhances the pressure resistance, so as to prevent the airpill housing 140 from being broken due to the excessive expansion pressure, and the supporting seat 147a does not tightly seal the airpill housing, thereby greatly improving the safety of use and the service life of the lightning protection device.
In the present invention, as shown in fig. 1 to fig. 6, the arc-extinguishing turntable 10 and the arc-extinguishing cylinder 9 are triggered in a clamping and dislocation manner, when an arc-extinguishing gas pill 14a is in a triggering position, the telescopic spring 13 is in an extended state, the lower end of the arc-extinguishing gas pill 14a extends into the air flow channel at the lower end of the device housing 11, at this time, the arc-extinguishing cylinder 9 is clamped between the placing groove 14 on the circumferential sidewall of the arc-extinguishing turntable 10 and the air flow channel 90 at the lower end of the device housing 11, the arc-extinguishing gas pill 14a is connected with the induction coil 4 and the metal screw 3 through the insulated wire 5 to form a current loop, the arc-extinguishing gas pill 14a at the triggering position waits for a triggering signal, when the arc-extinguishing gas pill 14a triggers, a strong air flow is generated, the strong air flow is ejected from the air flow channel 90 in the arc-extinguishing cylinder 9 (which is a cylindrical arc-extinguishing cylinder) and acts on an electric arc, and when the, the arc extinguishing gas pill 14a is successfully dislocated, the arc extinguishing rotating disc 10 can rotate under the action of the flat spiral spring 15 until the next arc extinguishing gas pill 14a enters the gas pill triggering position, and the arc extinguishing gas pill 14a is clamped again. Therefore, once an arc is generated, the whole current loop formed by connecting the arc extinguishing gas pill 14a with the induction coil 4 and the metal screw 3 through the insulated conductor 5 is conducted, the arc extinguishing gas pill 14a can smoothly act to cut off the arc, after the action is completed, because the arc extinguishing gas pills 14a are respectively and independently arranged in the placing grooves 14 in the circumferential side wall of the arc extinguishing turntable 10, the rotating device (the flat spiral spring 15) is sealed in the arc extinguishing turntable 10, once one arc extinguishing gas pill acts, the clamping position of the arc extinguishing gas pill is released, the arc extinguishing turntable 10 rotates to the clamping position of the next arc extinguishing gas pill, the lower end clamping position of the arc extinguishing gas pill 14a clamps the airflow channel 90 (the airflow channel 90 at the upper end of the arc extinguishing barrel 9) of the device shell 11, the above processes are repeated, the turntable 10 is connected with the counting pointer of the counter, and the action times of the arc extinguishing gas pills are arranged on the outer side surface of the device, the pointer can rotate once after acting once to point to a corresponding number or color, when the arc extinguishing gas pill 14a is used up, the side cover of the lightning protection device can be detached, the rotating disc can be replaced, the device can be repeatedly used, and the device is convenient to install.
In the invention, the single-wheel solid-phase arc extinguishing lightning protection device has three matching modes with the lower electrode (i.e. the lower end of the insulator string 1): a. the upper end of the insulator string 1 is provided with a single-disk wheel type solid-phase arc extinguishing and lightning protection device, and the lower end is provided with a pure arc striking electrode which can be used for arc extinguishing and lightning protection of 110kV and 220kV lines; b. the upper end of the insulator string is provided with a single-wheel type solid-phase arc extinguishing lightning protection device, and the lower end is provided with 201110090288.2 discloses an overhead transmission line constraint space jet gas arc extinguishing lightning protection gap device which can be used for arc extinguishing lightning protection of 500kV lines; c. the upper end and the lower end of the insulator string are respectively provided with a single-disk wheel type solid-phase arc-extinguishing lightning protection device which can be used for circuit arc-extinguishing lightning protection above 500 kV.
the foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (8)
1. the utility model provides a single wheeled solid phase arc extinguishing lightning protection device of dish, arc extinguishing lightning protection device includes arc extinguishing lightning protection body (100), and this arc extinguishing lightning protection body (100) are through link fitting fixed mounting on cross arm (101) or the one end of insulator chain (1), its characterized in that: the arc extinguishing lightning protection body (100) comprises a device shell (11), a metal screw (3), an induction coil (4), a central shaft (6), an arc striking ring (8), an arc extinguishing cylinder (9), an arc extinguishing turntable (10) and a plane volute spring (15), wherein the metal screw (3) is arranged at the top end of the device shell (11), the induction coil (4) is embedded in a shell between the inner wall and the outer wall of the top end of the device shell (11), the upper end of the metal screw (3) is connected with a cross arm (101) through a fitting, the lower end of the screw (3) penetrates through the induction coil (4) and extends into the device shell (11), an air pill triggering position is arranged at the bottom of the device shell (11), and the arc extinguishing cylinder (9) is arranged below the air pill triggering position; an arc striking ring (8) made of metal is arranged on the inner wall of the top end of the arc extinguishing cylinder (9), the arc extinguishing cylinder (9) penetrates through a device shell (11) and is in direct contact connection with a placing groove 14 on the circumferential side wall of the arc extinguishing turntable (10) through the arc striking ring (8), and the arc striking ring (8) is electrically connected with the lower end of a screw rod (3) at the top end of the device shell (11) through an arc guide grounding wire (7); the center shaft (6) is horizontally arranged in the center of a cavity of the device shell (11), the arc extinguishing rotating disc (10) is rotatably arranged on the center shaft (6), a flat spiral spring (15) for pushing the arc extinguishing rotating disc (10) to rotate is arranged in the center of the arc extinguishing rotating disc (10), a plurality of placing grooves (14) which are used for placing arc extinguishing gas pills (14a) along the radial direction are uniformly arranged on the circumferential side wall of the arc extinguishing rotating disc (10), the arc extinguishing gas pills (14a) in the placing grooves (14) are electrically connected with the induction coil (4) through insulated wires (5), an expansion spring (13) is sleeved outside the arc extinguishing gas pills (14a), one end of the expansion spring (13) is connected with the arc extinguishing gas pills (14a), and the other end of the expansion spring (13) is connected with an inner ring of the arc extinguishing rotating disc (10).
2. The single-reel solid-phase arc extinguishing lightning protection device according to claim 1, wherein: the arc extinguishing turntable (10) and the arc extinguishing cylinder (9) are triggered in a clamping and dislocation mode, when an arc extinguishing gas ball (14a) is located at a triggering position, a telescopic spring (13) is in an extending state, the lower end of the arc extinguishing gas ball (14a) extends into an air flow channel at the lower end of a device shell (11), at the moment, the arc extinguishing cylinder (9) is clamped between a placing groove (14) on the circumferential side wall of the arc extinguishing turntable (10) and the air flow channel at the lower end of the device shell (11), the arc extinguishing gas ball (14a) is connected with an induction coil (4) and a metal screw (3) through an insulated wire (5) to form a current loop, the arc extinguishing gas ball (14a) at the triggering position waits for a triggering signal, strong air flow is generated after the arc extinguishing gas ball (14a) is triggered, the strong air flow is ejected from the air flow channel in the arc extinguishing cylinder (9) and acts on an electric arc, and the pushing action force of the strong air flow generated after the arc extinguishing gas ball (14a) bursts enables the And compressing, wherein the arc extinguishing gas pill (14a) is successfully dislocated, and the arc extinguishing rotating disc (10) can rotate under the action of the flat spiral spring (15) until the next arc extinguishing gas pill (14a) enters the gas pill triggering position, and the arc extinguishing gas pill (14a) is clamped again.
3. The single-wheel solid-phase arc extinguishing lightning protection device according to claim 1 or 2, wherein: a counting pointer (12) is arranged on the outer side surface of the device shell (11), and the counting pointer (12) is fixed on a central shaft (6) extending out of the device shell (11).
4. The single-wheel solid-phase arc extinguishing lightning protection device according to claim 3, wherein: the arc conducting grounding wire (7) and the insulated conducting wire (5) are embedded in a shell of the device shell (11).
5. The single-wheel solid-phase arc extinguishing lightning protection device according to claim 1 or 2, characterized in that: the arc extinguishing gas pill (14a) comprises a gas pill shell (140), a gas pill body (141) hermetically coated in the gas pill shell (140), a first trigger electrode (142) and a second trigger electrode (143), wherein the first trigger electrode (142) and the second trigger electrode (143) are arranged at the top end of the gas pill shell (141), the first trigger electrode (142) extends out of the top end of the gas pill shell (140) to the outside of the gas pill shell (140), the first trigger electrode (142) is in insulated contact with the gas pill shell (140), the second trigger electrode (143) extends out of the top end of the gas pill shell (140) to the outside or the top end of the inner wall of the gas pill shell (141), the first trigger electrode (142) is in conductive connection with the gas pill shell (140), an air injection hole (144) is arranged at the bottom of the gas pill shell (140), and the lower end of the gas pill shell (140) extends into the inner wall of the top end of the arc extinguishing cylinder (9) from the device shell (11), the arc striking ring (8) is sleeved between the inner wall of the top end of the arc extinguishing cylinder (9) and the outer wall of the lower end of the gas pill shell (140), and the outer part of the top end of the gas pill shell (141) is connected with the inner ring of the arc extinguishing turntable (10) through a telescopic spring (13).
6. The single-wheel solid-phase arc extinguishing lightning protection device according to claim 5, wherein: the two-thirds periphery of the lower part of the air pill body (141) is sleeved with a sleeve (145), a lower sealing gasket (146) arranged on the sleeve (145) is arranged on the inner wall of the bottom end of the air pill shell (140), and the sealing gasket (146) is distributed on the outer side of the air injection hole (144).
7. The single-wheel solid-phase arc extinguishing lightning protection device according to claim 6, wherein: a supporting seat (147) is arranged at the top end of the air ball body (141), and a supporting gasket (147a) is arranged between the inner wall of the top end of the air ball shell (141) and the supporting seat (147).
8. The single-reel solid-phase arc extinguishing lightning protection device according to claim 7, wherein: a support piece (147b) is vertically arranged between the support gasket (146a) and the top end inner wall of the air ball shell (140).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910985094.5A CN110571649A (en) | 2019-10-16 | 2019-10-16 | Single-disc wheel type solid-phase arc extinguishing lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910985094.5A CN110571649A (en) | 2019-10-16 | 2019-10-16 | Single-disc wheel type solid-phase arc extinguishing lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110571649A true CN110571649A (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910985094.5A Withdrawn CN110571649A (en) | 2019-10-16 | 2019-10-16 | Single-disc wheel type solid-phase arc extinguishing lightning protection device |
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| Country | Link |
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| CN (1) | CN110571649A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181008A (en) * | 2020-01-16 | 2020-05-19 | 李智刚 | Single-disc wheel type solid-phase arc extinguishing lightning protection device |
| CN113577999A (en) * | 2021-07-02 | 2021-11-02 | 杭州电子科技大学 | Rotary discharge type air purification device and method |
-
2019
- 2019-10-16 CN CN201910985094.5A patent/CN110571649A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181008A (en) * | 2020-01-16 | 2020-05-19 | 李智刚 | Single-disc wheel type solid-phase arc extinguishing lightning protection device |
| CN113577999A (en) * | 2021-07-02 | 2021-11-02 | 杭州电子科技大学 | Rotary discharge type air purification device and method |
| CN113577999B (en) * | 2021-07-02 | 2024-02-06 | 杭州电子科技大学 | Rotary discharge type air purification device and method |
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Application publication date: 20191213 |
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