CN112117656B - Multi-solid-phase airflow multi-section synchronous arc extinguishing method and system - Google Patents
Multi-solid-phase airflow multi-section synchronous arc extinguishing method and system Download PDFInfo
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- CN112117656B CN112117656B CN201910538029.8A CN201910538029A CN112117656B CN 112117656 B CN112117656 B CN 112117656B CN 201910538029 A CN201910538029 A CN 201910538029A CN 112117656 B CN112117656 B CN 112117656B
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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
- 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
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
Abstract
The invention discloses a multi-solid-phase airflow multi-section synchronous arc extinguishing method and system, belonging to the technical field of synchronous arc extinguishing. According to the scheme, a plurality of arc breaking points are added, the whole long arc is broken into parts, and a plurality of short arc units are synchronously torn, so that the arc extinguishing capability of the long arc is improved, and the reignition of the long arc is effectively inhibited.
Description
Technical Field
The invention relates to the field of synchronous arc extinguishing devices, in particular to a multi-solid-phase airflow multi-section synchronous arc extinguishing method and system.
Background
Lightning has great harm to the safe operation of a power transmission line, often causes an insulator flashover accident, is frequently generated in mountainous areas and areas with inconvenient traffic, and increases a lot of difficulties for patrolling and finding faults. The faults of the power transmission lines are more and the faults of the power transmission lines are started by lightning trip, especially in the power transmission lines in mountainous areas, the line faults are basically caused by the lightning trip, and half of the power supply faults of the overhead power transmission lines are caused by lightning according to operation records, so that the fault occurrence probability of the power transmission lines can be greatly reduced by reducing the lightning trip times, and the accident occurrence frequency in the power grid is further reduced.
The impulse voltage generated when the transmission line is struck by lightning can cause the flashover of a line insulator, and then great power frequency follow current is generated, so that the short circuit of the line is caused, the insulator string and hardware fittings are damaged, and the line accident is caused. In particular, once tripping occurs in ultrahigh voltage and extra-high voltage lines, long arcs which build arcs quickly and huge arcs which are difficult to extinguish are formed, so that immeasurable economic loss is caused.
Disclosure of Invention
The invention aims to provide a multi-solid-phase airflow multi-section synchronous arc extinguishing method and a multi-solid-phase airflow multi-section synchronous arc extinguishing system, which are used for solving the technical problems in the background art.
A multi-solid-phase airflow multi-stage synchronous arc extinguishing method comprises the following steps:
step 1: a plurality of gas channels are arranged, and a conductive connecting assembly is arranged between every two adjacent gas channels to electrically connect the two adjacent gas channels;
step 2: an arc striking unit is arranged at the gas nozzle end of one gas channel to strike the lightning arc into the gas channel;
and step 3: the electric arc expands between the gas channels through the conductive connecting assembly, and the two ends of the conductive connecting assembly are connection points of the electric arc;
and 4, step 4: the gas arc extinguishing component arranged at one end outside the gas channel gas jet is triggered, high-pressure gas ejected by the gas arc extinguishing component is ejected out of the gas jet of the first gas channel for arc extinguishing, and the rest electric arc enters the adjacent second gas channel through the connecting point of the conductive connecting component;
and 5: and the residual electric arc enters the adjacent third gas channel through the connecting point of the conductive connecting assembly, the arc extinguishing process is repeated, the high-pressure gas drives the electric arc away from the connecting point, the electric arc is damaged and reignited at the connecting point, and the sectional arc extinguishing is completed.
Further, the specific process of step 1 is as follows:
the outer side of each gas channel is provided with a cylinder wall, the cylinder wall is made of high-strength insulating materials, and two adjacent gas channels are isolated by the cylinder wall;
the gas channels are arranged in the arc extinguishing cylinder body, the arc extinguishing cylinder body is of a cylindrical arc extinguishing cylinder structure with a hollow interior, and the gas channels are distributed in the cylinder wall of the cylindrical arc extinguishing cylinder; the arc extinguishing cylinder body can also be set to be a solid cylindrical arc extinguishing cylinder structure, a plurality of gas channels are distributed in the cylindrical arc extinguishing cylinder in a vortex shape, and the plurality of gas channels are distributed outwards in a vortex shape from the center.
The outside of a section of thick bamboo body encircles and is provided with climbs the arc limit, climbs the arc limit and sets up to the insulating material limit, fixes in the outside of a section of thick bamboo body at the alternative, gaseous arc extinguishing subassembly nestification sets up and climbs the arc limit.
Furthermore, the conductive connecting assembly in the step 1 comprises a connecting piece and an embedded ring, the embedded ring is embedded in the gas channel, one end of the connecting piece is connected with the embedded ring, and the other end of the connecting piece is connected with the adjacent gas channel;
the conductive connecting components are arranged in a step distribution type or a vortex step distribution type in the plurality of gas channels.
Further, the specific process of step 3 is as follows:
the electric arc is conducted to adjacent gas passage through the conductive connecting assembly after entering the gas passage, the conductive connecting assembly is communicated with the plurality of gas passages, and the electric arc forms a complete electric arc path through the conductive connecting assembly.
Further, the arc striking unit in the step 2 comprises an arc striking electrode and an arc guiding ring, the arc guiding ring is embedded in the inner side of the gas channel nozzle, and the arc striking electrode is arranged on the outer side of the gas channel and connected with the arc guiding ring.
Further, the gas arc extinguishing component in the step 4 is a solid-phase arc extinguishing component, the solid-phase arc extinguishing component comprises a rotating shaft, a rotating disc and a plurality of pressurizing components, and the rotating disc rotates around the rotating shaft; the gas arc extinguishing assembly is designed to be of an equal height type, a step arrangement type or a vortex step arrangement type in each gas channel, an insulating partition plate is arranged between the gas arc extinguishing assembly and the gas channels, and gas injection holes are formed in the insulating partition plate.
The utility model provides a synchronous arc extinguishing system of many solid-phase air current multistage, includes a plurality of gas channel, a plurality of conductive connection subassembly, striking unit and gas arc extinguishing subassembly, and conductive connection subassembly is adjacent two gas channel conductive intercommunication, and the striking unit sets up the spout end at a gas channel, and gas arc extinguishing subassembly sets up the other end at the gas channel spout end.
Furthermore, the conductive connecting assembly comprises a connecting piece and an embedded ring, the embedded ring is embedded in the gas channel, one end of the connecting piece is connected with the embedded ring, and the other end of the connecting piece is connected with the adjacent gas channel;
the outer side of each gas channel is provided with a cylinder wall, the cylinder walls are made of high-strength insulating materials, and two adjacent gas channels are isolated by the cylinder walls.
The gas channel is arranged in the arc extinguishing cylinder body;
the arc extinguishing cylinder body is of a cylindrical arc extinguishing cylinder structure with a hollow interior, and a plurality of gas channels are distributed in the cylinder wall of the cylindrical arc extinguishing cylinder; the arc extinguishing cylinder body can also be a solid cylindrical arc extinguishing cylinder structure, and the plurality of gas channels are distributed in the cylindrical arc extinguishing cylinder from the center to the outside in a vortex shape.
The outer side of the arc extinguishing barrel body is provided with an arc climbing edge in a surrounding mode, the arc climbing edge is made of insulating materials and fixed on the outer side of the arc extinguishing barrel body in an alternate mode, and the gas arc extinguishing assembly is arranged on the arc climbing edge in an embedded mode.
Further, the arc striking unit comprises an arc striking electrode and an arc guiding ring, the arc guiding ring is embedded in the inner side of the gas channel nozzle, and the arc striking electrode is arranged on the outer side of the gas channel and connected with the arc guiding ring.
The application designs the arc extinguishing route of many gas channel structures, and a plurality of arc extinguishing passageways constitute a complete arc extinguishing structure. Each gas channel is provided with an independent solid phase component, and the solid phase gas flow can act on each section of electric arc by segmenting the electric arc. The arc extinguishing cylinder is in a hollow cylinder shape, the gas channels are distributed in the cylinder wall in a concentrated way, and the number of the gas channels can be set to be a plurality; the arc extinguishing cylinder can also be a solid cylinder, the gas channels are distributed in the arc extinguishing cylinder from the center to the outside in a vortex shape, and the number of the gas channels can be a plurality; the wall of the arc extinguishing cylinder has a certain thickness, and the material is selected from high-strength insulating materials. The top of the arc extinguishing cylinder is provided with a circular top cover which is fixed on the top of the arc extinguishing cylinder. The gas channels are provided with connecting pieces, the connecting pieces can be in various forms, can adopt various wall electrodes, and can also adopt metal rings and compression pipes, and two adjacent gas channels are communicated through the connecting pieces. The gas channel gas nozzle can point to a plurality of directions, a downward nozzle and a lateral nozzle can be adopted, and the solid phase gas flow can realize the simultaneous injection of a plurality of channels. The arc striking unit is arranged at the initial gas channel nozzle, one half of the arc striking unit is fixed at the initial gas channel nozzle, the other half of the arc striking unit is exposed in the air, and the arc striking unit is arranged to be mainly used for leading a lightning arc into the arc extinguishing cylinder. And a metal embedded ring is arranged in the gas channel, is positioned below the solid-phase component and is used for limiting the path of the electric arc. The skirt edge is arranged outside the arc extinguishing cylinder, has a certain thickness, can prevent water by arranging the skirt edge, and can effectively avoid direct flashover of electric arc outside the arc extinguishing cylinder. The speed of the arc switching in the multiple gas channels is very fast and can be considered as synchronous; the individual solid phase assemblies are also triggered simultaneously and simultaneously.
The arc extinguishing principle is as follows: the device is divided into a plurality of arc channels, arcs are expanded among the arc channels, and the arc channels are mutually independent in a mode of arranging connecting points. The segments are connected by the connectors, the arc forms a complete arc path through the connectors, the solid phase device is triggered at the moment, the high-pressure gas drives the arc away from the connecting point, and the possibility of reignition of the arc at the connecting point (namely, the only reignition point) is damaged. At the moment, the connecting piece plays a similar knife switch role, synchronous and simultaneous multi-breakpoint cutting is realized, the fragmentation degree of the electric arc is improved in the mode, meanwhile, the medium strength recovery speed reaches a large value, and an electric arc re-ignition channel is blocked.
The solid phase component can be designed to be in an equal height type in each channel; meanwhile, the connecting piece and the metal embedded ring in each channel are also designed to be of equal height type, and the connecting piece is electrically connected with the metal embedded ring. A plurality of chambers are arranged in the first layer of skirt edge, all the chambers are at the same height, and the number of the chambers is equal to the number of the gas channels. Each air pill rotating disc is provided with a triggering position which is over against the corresponding air channel, so that a one-to-one mode is realized.
The solid phase components can be designed to be arranged in a step mode in each channel and are fixed in each channel through an insulating partition plate; the connecting piece and the metal embedded ring in the arc extinguishing cylinder are also distributed in a step shape, and the connecting piece and the metal embedded ring are electrically connected. And the skirt edges are provided with chambers from top to bottom, each layer of skirt edges is internally provided with one chamber, and the number of the chambers is equal to that of the gas channels. Each air pill rotating disc is provided with a triggering position which is over against the corresponding air channel, so that a one-to-one mode is realized.
The solid phase components can be designed into a vortex stepped arrangement in each channel and are fixed in each channel through an insulating partition plate; the connecting piece and the metal inner embedded ring in the arc extinguishing cylinder are also distributed in a vortex step type, and the connecting piece and the metal inner embedded ring are electrically connected. And the skirt edges are provided with chambers from top to bottom, each layer of skirt edges is internally provided with one chamber, and the number of the chambers is equal to that of the gas channels. Each air pill rotating disc is provided with a triggering position which is over against the corresponding air channel, so that a one-to-one mode is realized.
Arc extinguishing process: firstly, an arc striking unit leads an arc into a first gas channel of an arc extinguishing cylinder, and a solid-phase component is triggered to extinguish the arc of a first section of the arc; then, the residual arc enters the adjacent second gas channel through the connecting point, and the solid-phase component is triggered to extinguish the arc of the residual arc; the residual arc then enters the third, adjacent gas channel through the junction, and the arc quenching process is repeated. Since the speed of arc transitions in multiple gas channels is very fast, it can be considered that each solid phase device is triggered synchronously. The electric arc is rapidly switched in different pipelines until the electric arc is completely extinguished.
By adopting the technical scheme, the invention has the following technical effects:
(1) aiming at long electric arcs and large electric arcs, the invention carries out multi-fracture arc extinction by a method of increasing fracture points, thereby realizing the differentiation of the long electric arcs into a plurality of short electric arcs and realizing the synchronous blow-off of a plurality of short electric arc units; the method improves the capacity of extinguishing long electric arcs and effectively inhibits the reignition of the long electric arcs, so that the method for synchronously extinguishing the electric arcs by multiple solid-phase air flows in multiple stages is provided based on the method.
(2) A plurality of arc breaking points are added, the whole long arc is broken into parts, a plurality of short arc units are synchronously torn, the arc extinguishing capability of the long arc is improved, and the reignition of the long arc is effectively inhibited.
(3) Simple structure, reasonable design, and more stable and reliable work. A plurality of independent arc extinguishing channels are designed, so that the separated short arc reignition can be avoided; the design of the arc striking unit, the connecting piece and the metal embedded ring can limit the arc path to be positioned in a designated channel.
(4) The arc extinguishing cylinder is externally provided with an arc climbing edge, so that the arc extinguishing cylinder can prevent water and can effectively prevent electric arc from directly flashover outside the arc extinguishing cylinder.
Drawings
Fig. 1 is a schematic view of a multi-segment gas channel synchronous arc extinguishing structure according to the present invention.
Fig. 2 is a schematic view of an external structure of the arc extinguishing apparatus of the present invention.
Fig. 3 is a cross-sectional view of an arc extinguishing device of the present invention.
Fig. 4 is a schematic view of a multi-segment gas channel structure inside the arc extinguishing device of the present invention.
FIG. 5 is a schematic diagram of a second synchronous arc extinguishing structure of the multi-segment gas channel of the present invention.
Fig. 6 is a second cross-sectional view of an arc extinguishing device of the present invention.
Fig. 7 is a top view of a second internal multi-segment gas channel structure of an arc extinguishing device according to the present invention.
Figure 8 is a cross-sectional view of three forms of a first configuration of the gas plenum assembly of the present invention.
FIG. 9 is a cross-sectional view of four alternative configurations of a second configuration of the gas plenum assembly of the present invention.
FIG. 10 is a cross-sectional view of two forms of a third construction of a gas plenum assembly in accordance with the present invention.
FIG. 11 is a cross-sectional view of four forms of a fourth construction of the gas plenum assembly of the present invention.
FIG. 12 is a comparison of the arc extinguishing effect of the gas pressurizing assembly of the present invention and the arc extinguishing effect of the conventional gas generator.
In the figure: 1-a solid-phase arc-extinguishing component; 1.1-a rotating shaft; 1.2-rotating disc; 1.3-a pressurizing assembly; 2-the wall of the cylinder; 3-a gas channel; 4-a connector; 5-embedding a ring; 6-an arc striking unit; 7-arc extinguishing cylinder body; 8-climbing arc edge; 9-a bottom plate; 10-an insulating spacer; 11A-trigger signal input terminal; 12A-a wrapping layer; 13A-balloon base; 14A-qi pill; 15A-gas injection holes; 16A-bottom wall; 11B-trigger signal input terminal; 12B-a limit frame; 13B-a sleeve; 14B-balloon base; 15B-qi pill; 16B-gas injection holes; 17B-gasket; 18B-a base support; 11C-trigger signal input terminal; 12C-a limit barrel; 13C-a sleeve; 14C-balloon base; 15C-qi pill; 16C — gas injection holes; 17C-bottom wall; 18C-gasket; 11D-trigger signal input terminal; 12D-upper frame; 13D-a sleeve; 14D-balloon base; 15D-Qiwan; 16D-lower frame; 17D-gas injection holes; 18D-gasket pad; 19D-frame connection.
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.
Embodiments of the present invention are further described in accordance with the foregoing description of principles and with reference to fig. 1-12:
a multi-solid-phase airflow multi-stage synchronous arc extinguishing method is characterized by comprising the following steps:
step 1: a plurality of gas channels 3 are arranged, and a conductive connecting assembly is arranged between every two adjacent gas channels 3 to conduct and communicate the two adjacent gas channels 3. The outer side of each gas channel 3 is provided with a cylinder wall 2, the cylinder walls 2 are made of high-strength insulating materials, and two adjacent gas channels 3 are isolated by the cylinder walls 2;
the gas channels 3 are arranged in the arc extinguishing cylinder body 7, the arc extinguishing cylinder body 7 is of a cylindrical arc extinguishing cylinder structure with a hollow interior, and the gas channels 3 are distributed in the cylinder wall of the cylindrical arc extinguishing cylinder; a plurality of gas channel 3 also can become the vortex form and set up in arc extinguishing chamber body 7, and arc extinguishing chamber body 7 sets up to solid cylinder arc extinguishing chamber structure, and a plurality of gas channel 3 becomes the outside distribution of vortex form inside cylinder arc extinguishing chamber by the center.
The outside of a section of thick bamboo body 7 encircles and is provided with climbs arc limit 8, climbs arc limit 8 and sets up to the insulating material limit, fixes in the outside of a section of thick bamboo body 7 alternately, gaseous arc extinguishing subassembly nested arrangement is climbing arc limit 8.
Step 2: an arc striking unit 6 is provided at the gas ejection port end of one gas channel 3 to strike the lightning arc into the gas channel 3. The conductive connecting assembly comprises a connecting piece 4 and an embedded ring 5, the embedded ring 5 is embedded in the gas channel 3, one end of the connecting piece 4 is connected with the embedded ring 5, and the other end of the connecting piece is connected with the adjacent gas channel 3;
the conductive connecting components are arranged in a step distribution type or a vortex step distribution type in the plurality of gas channels 3.
The arc striking unit 6 comprises an arc striking electrode and an arc guiding ring, the arc guiding ring is embedded in the inner side of the nozzle of the gas channel 3, and the arc striking electrode is arranged on the outer side of the gas channel 3 and is connected with the arc guiding ring.
And step 3: the arc is expanded between the gas channels 3 by means of a conductive connection assembly, the two ends of which are the connection points for the arc. The electric arc is conducted to adjacent gas passage 3 through conductive connecting assembly after entering gas passage 3, and conductive connecting assembly communicates a plurality of gas passage 3, and the electric arc has formed a complete electric arc route through conductive connecting assembly.
And 4, step 4: the gas arc extinguishing component arranged at one end outside the gas nozzle of the gas channel 3 is triggered, high-pressure gas sprayed by the gas arc extinguishing component is sprayed out from the gas nozzle of the first gas channel 3 to extinguish arc, and the rest electric arc enters the adjacent second gas channel 3 through the connecting point of the conductive connecting component.
The gas arc extinguishing component is a solid-phase arc extinguishing component, the solid-phase arc extinguishing component comprises a rotating shaft 1.1, a rotating disc 1.2 and a plurality of pressurizing components 1.3, and the rotating disc 1.2 rotates around the rotating shaft 1.1; the gas arc extinguishing assembly is designed to be of the same height type, the step arrangement type or the vortex step arrangement type in each gas channel 3, an insulating partition plate 10 is arranged between the gas arc extinguishing assembly and the gas channels 3, and gas injection holes are formed in the insulating partition plate 10.
And 5: the residual arc enters the adjacent third gas channel 3 through the connecting point of the conductive connecting assembly, the arc extinguishing process is repeated, the high-pressure gas drives the arc away from the connecting point, the arc is damaged and reignited at the connecting point, and the sectional arc extinguishing is completed. Since the speed of the arc transitions in the plurality of gas channels 3 is very fast, it can be considered that the respective solid phase devices are triggered synchronously. The electric arc is rapidly switched in different pipelines until the electric arc is completely extinguished.
The utility model provides a synchronous arc extinguishing system of many solid-phase air current multistage, as figure 1 and figure 5, includes a plurality of gas channel 3, a plurality of conductive connection subassembly, striking unit 6 and gas arc extinguishing subassembly, conductive connection subassembly is adjacent two gas channel 3 electrically conductive intercommunication, striking unit 6 sets up the nozzle end at a gas channel 3, and gas arc extinguishing subassembly sets up the other end at gas channel 3 nozzle end. The gas passages 3 may be arranged at equal or unequal distances, or may be arranged in a stepped structure or a swirl stepped structure. As shown in fig. 7, the gas passages 3 are arranged in a structure in which they are distributed outward from the center of the arc tube in a spiral shape, and the arc first enters the gas passage a, then sequentially enters the gas passages B, C, D, E through the wall electrodes, and then sequentially goes downward in a spiral shape. The conductive connecting components can be arranged and connected on the same horizontal line or different horizontal lines. The gas arc extinguishing assembly is used for generating gas high-pressure gas to extinguish electric arcs in the gas channel 3. The gas arc extinguishing assembly is used for triggering high-pressure gas by inducing lightning or overvoltage through the induction coil.
The conductive connection assembly comprises a connecting piece 4 and an embedded ring 5, the embedded ring 5 is embedded inside the gas channel 3, one end of the connecting piece 4 is connected with the embedded ring 5, and the other end of the connecting piece is connected with the adjacent gas channel 3. Connecting piece 4 and interior thimble 5 all use metal material to make for electric conductivity is better, uses simultaneously that interior thimble 5 is better to introduce the electric arc into next gas passage 3 in, realizes breaking up whole into parts the long electric arc, and tears a plurality of short electric arc units in step simultaneously, has improved the arc extinguishing ability to long electric arc, has effectively restrained the restriking of long electric arc.
The outer side of the gas channel 3 is provided with a cylinder wall 2, the cylinder wall 2 is made of high-strength insulating materials, and two adjacent gas channels 3 are separated by the cylinder wall 2. The gas-insulated arc extinguishing chamber further comprises an arc extinguishing chamber body 7, and the plurality of gas channels 3 are arranged in the arc extinguishing chamber body 7. The arc extinguishing cylinder body 7 is of a cylindrical arc extinguishing cylinder structure with a hollow interior, and the plurality of gas channels 3 are distributed in the cylinder wall of the cylindrical arc extinguishing cylinder; the arc extinguishing cylinder body 7 can also be arranged into a solid cylindrical arc extinguishing cylinder structure, and the plurality of gas channels 3 are distributed outwards in the cylindrical arc extinguishing cylinder in a vortex shape from the center. The outside of a section of thick bamboo body 7 encircles and is provided with climbs arc limit 8, climbs arc limit 8 and sets up to the insulating material limit, fixes in the outside of a section of thick bamboo body 7 alternately, gaseous arc extinguishing subassembly nestification sets up and climbs arc limit 8. The cylinder wall 2 and the arc extinguishing cylinder body 7 are both made of non-conductive materials with high strength, high temperature resistance and high pressure resistance, and are made of any one of alloy ceramics, rare earth ceramics, graphene-ceramic composite materials, organic ceramics, synthetic silicon rubber, organic insulating materials, alloy glass, rare earth glass, graphene glass or organic glass.
An insulating partition plate 10 is arranged between the gas arc extinguishing assembly and the gas channel 3, and gas injection holes are formed in the insulating partition plate 10. The insulating partition plate 10 protects the gas arc extinguishing assembly, prevents the gas arc extinguishing assembly from being damaged by electric arc, and prolongs the service life.
The gas arc extinguishing component is a solid-phase arc extinguishing component, and the solid-phase arc extinguishing component comprises a rotating shaft 1.1, a rotating disc 1.2 and a plurality of pressurizing components 1.3, wherein the rotating disc 1.2 rotates around the rotating shaft 1.1, and the plurality of pressurizing components 1.3 are arranged in the rotating disc 1.2.
As shown in fig. 8, the gas pressurizing assembly 1.3 includes a trigger signal input terminal 11A, a wrapping layer 12A, an air pill base 13A, an air pill 14A and an air injection hole 15A, the trigger signal input terminal 11A is disposed on the air pill base 13A, the air pill 14A is disposed on one side of the air pill base 13A, the wrapping layer 12A is wrapped on the outer sides of the air pill base 13A and the air pill 14A and is attached to the outer sides of the air pill base 13A and the air pill 14A, the air injection hole 15A is disposed at the attachment position of the wrapping layer 12A and the air pill 14A, the wrapping layer 12A is disposed to be a hard layer, the pressure intensity in the wrapping layer 12A is increased, the bending moment at the air injection hole 15A is increased, and high-pressure air flow is injected. The sum of the base pressure of the gas pellet 14A and the incremental pressure of the envelope 12A is greater than the critical pressure at which the gas pellet 14A ruptures.
The air pill base 13A and the air pill 14A are nested within the envelope 12A, which envelopes them. And the tight nesting of the air pill base 13A and the air pill 14A with the coating layer 12A is realized, and the thickness of the inner wall of the coating layer 2 can be processed, so that the air pill base and the air pill do not deviate or expand and the like. The gas bolus 14A is held at a high gas pressure by the envelope 12A, and all of the gas generated by the combustion of the gas generating material in the gas bolus 14A is subjected to all of the pressure in the envelope 12A. A trigger signal input port is designed at the top end of the wrapping layer 12A, and a trigger signal input terminal 11A is arranged on the trigger signal input port and used for receiving a lightning trigger signal by the air ball 14A; the fumarole 15A that parcel layer 12A established, gaseous 15A blowout and the spray direction from this fumarole that does not wrap up are controllable, diminish through the aperture of the fumarole 15A who establishes, and the position that sets up as required simultaneously realizes having realized the controllable condition of direction with the contrast of original detonation mode. The wrapping layer 12A is made of a high-strength material such as aluminum steel.
After the gas pill 14A receives the trigger signal input by the trigger signal input terminal 1, gas is rapidly generated in the gas pill 14A, and the strength of the wrapping layer 12A is very good and is far greater than the pressure of the gas generated by the gas pill 14A, so that the wrapping layer 12A cannot crack to generate detonation. The pressure intensity of the gas generated in the gas pill 4 is greater than the surface layer of the gas pill 4, and after the gas pill bears the maximum pressure, the gas generated by the gas pill 4 can only be ejected from the gas ejecting hole 15A, so that the pressure intensity of the ejected gas is increased, and the operation of controllable gas ejecting direction is realized according to the setting size and position of the gas ejecting hole 15A. And during the burning process of the gas pill 14A, the internal gas pressure is increased, so that the burning speed is higher, and the arc extinguishing reaction time is shorter.
The air ejection holes 15A are provided at opposite ends of the trigger signal input terminal 11A, and the trigger signal input terminal 11A is provided in contact with the gas pill 14A. Through setting up fumarole 15A and trigger signal input terminal 11A at the opposition end for gunpowder in the gas pellet 14A structure just can press the material constraint layer of fumarole 5 in the twinkling of an eye after the complete burning of gas pressure, makes the gas production material burning in the gas pellet 14A more complete, and gas pressure is bigger, can extinguish the electric arc that higher voltage transmission of electricity produced, makes the effect of arc extinguishing better.
The gas pill 14A comprises a material bound layer, gunpowder and solid oxygen or liquid oxygen, wherein the gunpowder and the solid oxygen or the liquid oxygen are mixed and sealed and placed in the material bound layer, the fracture pressure value of the material bound layer is far smaller than the increment value of the pressure in the wrapping layer, and the increment pressure of the material bound layer is smaller than the critical pressure for fracture of the gunpowder.
After the gunpowder is ignited, the solid oxygen or the liquid oxygen provides combustion oxygen, and when the temperature rises, the solid oxygen or the liquid oxygen is gasified to provide an additional gas pressure, so that a secondary pressurization effect is formed, and the gas pressure is increased more quickly. The gas pressure generated when the gunpowder is burnt basically and completely is larger than the critical pressure for the rupture of the material bound layer, so that the material bound layer at the gas injection hole 5 is ruptured, and the gas is injected from the gas injection hole 5 for arc extinction.
The trigger signal input terminal 11A is arranged by arranging a plurality of heating resistance wires in contact with gunpowder inside the gas pill, and the plurality of heating resistance wires are arranged in parallel and connected with the trigger signal input terminal. The heating resistance wires are arranged in parallel, so that the effect of multipoint ignition is realized, the reaction time can be shortened, the reaction time for arc extinction can be shortened, and the arc extinction is quicker.
The trigger signal input terminal 11A inputs a current signal, the resistance wire generates heat, gunpowder in the gas pill burns to generate high-pressure gas, the wrapping layer 12A axially and radially restrains the high-pressure gas, the pressure in the wrapping layer is increased, the bending moment at the gas injection hole is improved, the pressure of the high-pressure gas is greater than the bending moment of the material binding layer at the gas injection hole, the high-pressure gas is sprayed out from the gas injection hole, and the gas injection direction is controlled by the position where the gas injection hole 15A is arranged. When the gas pill 4 receives the electric signal of the trigger signal input terminal 1, a large amount of arc extinguishing gas can be triggered and generated; the high-strength wrapping layer 12A carries out radial restraint and axial restraint on the air flow, and the incremental pressure in the wrapping layer 12A is rapidly increased; because the high-strength wrapping layer wraps the gas generating material, the burning speed of the gas generating material is accelerated, the burning integrity is improved, the internal pressure of the wrapping layer is increased, the bending moment at the air injection hole is improved, and high-pressure air flow is injected. Because the strength of the air outlet is far less than that of the wrapping layer 12A, and the aperture of the air injection hole 15A is reduced, a large bending moment can be generated, when the sum of the basic pressure of the air pill 14A and the increment pressure of the wrapping layer is greater than the critical pressure of the rupture of the gas generating material, the air flow is injected from the non-wrapped air outlet, the injection direction of the air outlet is controllable, the injected air flow is concentrated and strong, and the arc extinguishing effect is greatly improved. By improving the sealing strength, the material in the gas pill 14A is fully combusted to generate larger critical release air pressure, high-speed arc extinguishing airflow is generated while arc is built, the high-speed arc extinguishing airflow acts on an arc channel, the follow-up power frequency arc building process is blocked, the power frequency arc can be extinguished in a very short time, and the arc extinguishing time is far shorter than the action time of the circuit breaker. Wherein the gas generated by the arc extinguishing unit directly influences the arc extinguishing effect.
The parcel layer 12A sets up to the drum structure, drum structure inner wall closely laminates with air ball base 13A and air ball 14A, drum structure bottom sets up to open structure, drum structure bottom side is provided with diapire 16A, embolia air ball base 13A and air ball 14A after, use mechanical extrusion diapire 16A to inwards fold up, become 90 with the lateral wall, fumarole 15A sets up at drum structure top, set up trigger signal input terminal 11A's input port on parcel layer 12A, when the installation, the practicality embolias parcel layer 12A's inner tube together air ball base 13A and air ball 14A in, then extrude diapire 16A to inwards fold up through extrusion machine. The bottom wall 16A is mainly a fixed balloon base 13A, and generates a front-rear tension when high-pressure gas is generated, and is fixed by the bottom wall 16A, and the thickness of the bottom wall 16A is thicker than that of the other end of the cylindrical structure. The drum structure is convenient to install and simple to machine, can greatly save machining cost, and improves economic benefits.
The wrapping layer 12A is arranged to be of a box body structure, a buckling cover is arranged on the box body structure, and the buckling cover is buckled with the box body structure through a buckle. The air pill base 13A and the air pill 14A are placed in a box body structure, wherein the internal structure arranged in the box body structure is the same as the structures of the air pill base 13A and the air pill 14A, and can be a cylindrical structure, a square structure or a raised head structure, and the like, and the box body structure can be opened during processing. After the gas pill base 13A and the gas pill 14A are sleeved, the buckling cover is covered, then the buckle is used for buckling, the installation is convenient, the installation can be completed directly by hand, the processing speed is high, and the economy is less than high.
The size of the gas injection hole 15A is 5-8mm, and the gas generated by the gas pill 14A is ejected from the gas injection hole. The air current is sprayed from the uncoated air injection hole 15A, the spraying direction of the air injection hole 15A is controllable, the sprayed air current is concentrated and strong, and the arc extinguishing effect is greatly improved. The ordinary original spray hole is generally dozens of millimeters, so that the spray range is too large, the spray time is shortened, and the arc extinguishing effect is poor. According to a bending moment calculation formula: m is θ · EI/L, θ is torque, EI is rotational stiffness, and L is the effective calculated length of the rod. Theta is that torque and EI are the rotational stiffness homogeneous phase is the same, and L shortens the back for the moment of flexure grow, and the pressure grow of spun gas promptly, and fumarole 16A is less, and same gas needs longer time just can spout, and the time of arc extinguishing also is longer, reaches the increase of arc extinguishing gas pressure, and the arc extinguishing time increases, reaches the effect of better arc extinguishing.
The wrapping layer 12A and the material binding layer are made of the same type of metal materials, and the thickness of the wrapping layer 12A is in direct proportion to the amount of gunpowder. Because the lightning protection device is installed on the transmission line for a long time, the conditions of sun exposure and rain exposure can be caused, if different metals are used, a point potential difference is formed between the material binding layer and the radial sleeve piece or the wrapping layer, and the condition of corrosion can easily occur after the potential difference is formed, so that the service life of the lightning protection device is greatly shortened, and the same type of metal materials can be used for effectively preventing the conditions.
As shown in fig. 9, the gas pressurizing assembly 1.3 includes a trigger signal input terminal 11B, a limiting frame 12B, a sleeve 13B, a balloon base 14B, a balloon 15B and an air vent 16B, the trigger signal input terminal 11B is disposed on the balloon base 14B, the balloon base 14B is connected to the balloon 15B, the sleeve 13B is sleeved on the outer side of the balloon 15B, the limiting frame 12B is clamped on the outer sides of the sleeve 13B and the balloon base 14B, the air vent 16B is disposed on the limiting frame 12B, pressure in the sleeve and the limiting frame is increased, bending moment at the air vent is increased, and high-pressure air is ejected. The sum of the base pressure of the gas pill 15B and the incremental pressure of the limiting frame 12B or the incremental pressure of the sleeve 13B is larger than the critical pressure of gas generating material rupture in the gas pill 15B, and the limiting frame 12B and the sleeve 13B are both set to be hard structures.
The base pressure of the gas pill 15B is a reaction force of the extrusion force of the wrapped gunpowder when the gas pill 15B is not combusted, that is, when the sleeve 13B is tightly wrapped with the gas pill 15B, the gas pill 15B generates an outward tension to the sleeve 13B, that is, the base pressure of the gas pill 15B, and the incremental pressure of the sleeve 13B is an incremental pressure for increasing the outward pressure to the sleeve 13B, so that the limit pressure at which the sleeve 13B just breaks is the incremental pressure of the sleeve 13B. The incremental pressure of the limit frame 12B is the outward pressure above and below the limit frame 12B, so that the limit pressure at which the limit frame 12B just breaks is the incremental pressure of the limit frame 12B. The critical pressure at which the gas pill 15B is ruptured is a pressure at which the gas generates the maximum pressure when the internal fuel in the gas pill 15B is completely burned. That is, the high-strength limiting frame 12B and the sleeve 13B wrap the gas pill 15B to prevent detonation, and high-pressure gas is ejected from the gas ejecting hole 16B after complete combustion.
The air pill 15B is nested in the sleeve 13B, the sleeve 13B wraps the side edge of the air pill 15B, the top end of the limiting frame 12B is arranged in close contact with the air pill base 14B, and the bottom of the limiting frame is arranged in close contact with the bottom of the air pill 15B or the bottom of the sleeve 13B. The sleeve 13B is used for radially and tightly nesting and wrapping the air pills 15B, and the thickness of the inner wall of the sleeve 13B is processed so that the air pills cannot deviate or expand and the like. The large gas pressure of the gas pill 15B is bound by the sleeve 13B, and all gas generated after all gas-generating materials in the gas pill 15B are combusted is subjected to all pressure in the sleeve 13B. The upper limiting frame 12B limits the upper end and the lower end of the high-pressure gas generated in the gas pill 15B in the vertical direction, so that the upper end and the lower end do not expand or burst and the like. A trigger signal input port is designed at the top end of the limiting frame 12B, and a trigger signal input terminal 11B is arranged on the trigger signal input port and used for receiving a lightning trigger signal by the air ball 15B. The fumarole 16B that spacing frame 12B established, gaseous 16B blowout and the injection direction of fumarole from this not parcel are controllable, diminish through the aperture of the fumarole 16B who establishes, and the position that sets up as required simultaneously realizes having realized the controllable condition of direction with the contrast of original detonation mode. The stop frame 12B and the sleeve 13B are made of high-strength material such as aluminum steel.
After the gas pill 15B receives the trigger signal input by the trigger signal input terminal 11B, gas is rapidly generated in the gas pill 15B, and the sleeve 13B and the limiting frame 12B cannot crack to generate detonation because the strength of the sleeve 13B and the limiting frame 12B is very good and is far greater than the pressure of the gas generated by the gas pill 15B. After the pressure intensity of the gas generated in the gas pill 15B is greater than the maximum bearing pressure of the surface layer of the gas pill 15B, the gas generated by the gas pill 15B can only be ejected from the gas ejecting holes 16B, so that the pressure intensity of the ejected gas is increased, and the operation of controllable gas ejecting direction is realized according to the setting size and the position of the gas ejecting holes 16B. And in the burning process of the gas pill 15B, the internal gas pressure is increased, so that the burning speed is higher, and the arc extinguishing reaction time is shorter.
The sleeve 13B is arranged to be a cylindrical structure, the cylindrical structure is composed of a plurality of detachable circular hoops, and the circular hoops are detachably connected with the circular hoops. The circle hoop passes through screw thread or buckle with the circle hoop and is connected to the height of the voltage of the power transmission line that can extinguish arc as required sets up the gas ball 15B of corresponding length, and when gas ball 15B width or diameter are fixed time, the voltage of the power transmission line that needs the arc extinguishing is higher, and gas ball 15B's length is longer more, makes the pressure of the gas of arc extinguishing higher, and the time of arc extinguishing is longer more, and the arc extinguishing effect is better, can extinguish the electric arc that higher voltage power transmission line produced. Meanwhile, the sleeve 13B can be conveniently installed, the number of the connecting circular hoops is increased according to the length of the air pills 15B, and the length of the air pills 15B is generally integral multiple of the length of the circular hoops.
The sleeve 13B is of a barrel structure, a barrel air vent is arranged at the bottom of the barrel structure, and the center of the barrel air vent and the center of the air vent 16B are arranged on the same straight line. The bottom of the drum structure is set to be a drum bottom structure, and then the drum bottom structure is provided with a drum air vent which is superposed with the air vent 16B.
The limiting frame 12B, the sleeve 13B and the material binding layer are made of similar metal materials, and the thicknesses of the limiting frame 12B and the sleeve 13B are in direct proportion to the amount of gunpowder. Because the lightning protection device is installed on the transmission line for a long time, the conditions of sun exposure and rain exposure can be caused, if different metals are used, a point potential difference is formed between the material binding layer and the radial sleeve piece or the wrapping layer, and the condition of corrosion can easily occur after the potential difference is formed, so that the service life of the lightning protection device is greatly shortened, and the same type of metal materials can be used for effectively preventing the conditions.
As shown in fig. 10, the gas pressurizing assembly 1.3 includes a trigger signal input terminal 11C, a limiting barrel 12C, a sleeve 13C, a balloon base 14C, a balloon 15C and an air vent 16C, the trigger signal input terminal 11C is disposed on the balloon base 14C, the balloon base 14C is connected with the balloon 15C, the sleeve 13C is sleeved on the outer side of the balloon 15C, the limiting barrel 12C is clamped on the outer sides of the sleeve 13C and the balloon base 14C, the air vent 16C is disposed on the limiting barrel 12C, the pressure in the sleeve and the limiting barrel is increased, the bending moment at the air vent is increased, and high-pressure air flow is ejected. The sum of the base pressure of the gas ball 15C and the incremental pressure of the limiting barrel 12C and/or the incremental pressure of the sleeve 13C is larger than the critical pressure of gas generating material rupture in the gas ball 15C, and the limiting barrel 12C and the sleeve 13C are both set to be hard structures.
The air pill 15C is nested in the sleeve 13C, the sleeve 13C wraps the side edge of the air pill 15C, the top end of the limiting barrel 12C is arranged in close contact with the air pill base 14C, and the bottom of the limiting barrel is arranged in close contact with the bottom of the air pill 15C or the bottom of the sleeve 13C. The sleeve 13C radially and tightly nests and wraps the gas pill 15C, and the thickness of the inner wall of the sleeve 13C is processed, so that the gas pill cannot deviate or expand and the like. The large gas pressure of the gas pill 15C is bound by the sleeve 13C, and all the gas generated by the combustion of the gas-generating material in the gas pill 15C is subjected to all the pressures in the sleeve 13C. The upper and lower end of the high-pressure gas generated in the gas pill 15C is limited by the upper and lower limiting barrels 12C in the vertical direction, so that the upper and lower ends are not expanded or burst. The top of the limiting barrel 12C is provided with a trigger signal input port, and a trigger signal input terminal 11C is arranged on the trigger signal input port and used for receiving a lightning trigger signal by the air ball 15C. The fumarole 16C that spacing bucket 12C established, gaseous 16C blowout and the injection direction of this fumarole that does not wrap up are controllable from this, and the aperture through the fumarole 16C who establishes diminishes, and the position that sets up as required simultaneously realizes having realized the controllable condition of direction with the contrast of original detonation mode. The limiting barrel 12C and the sleeve 13C are made of high-strength materials such as aluminum steel.
After the gas pill 15C receives the trigger signal input by the trigger signal input terminal 11C, gas is rapidly generated in the gas pill 15C, and the sleeve 13C and the limiting barrel 12C are prevented from being broken to generate detonation conditions because the strength of the sleeve 13C and the limiting barrel 12C is very good and is far greater than the pressure of the gas generated by the gas pill 15C. After the pressure intensity of the gas generated in the gas pill 15C is greater than the maximum bearing pressure of the surface layer of the gas pill 5, the gas generated by the gas pill 15C can only be ejected from the gas ejecting hole 16C, so that the pressure intensity of the ejected gas is increased, and meanwhile, the operation of controllable gas ejecting direction is realized according to the setting size and the position of the gas ejecting hole C16. And in the burning process of the gas pill 15C, the internal gas pressure is increased, so that the burning speed is higher, and the arc extinguishing reaction time is shorter.
As shown in fig. 11, the gas pressurizing assembly 1.3 includes a trigger signal input terminal 11D, an upper frame 12D, a sleeve 13D, a balloon base 14D, a balloon 15D, a lower frame 16D and a gas injection hole 17D, the trigger signal input terminal 11D is disposed on the balloon base 14D, the balloon base 14D is connected with the balloon 15D, the sleeve 13D is sleeved on the outer side of the balloon 15D, the upper frame 12D is detachably connected with the lower frame 16D, the upper frame 12D and the lower frame 16D are clamped on the outer sides of the sleeve 13D and the balloon base 14D, the gas injection hole 17D is disposed on the lower frame 16D, the pressure inside the sleeve and the frame is increased, the bending moment at the gas injection hole is increased, and the high-pressure gas is injected. The sum of the base pressure of the gas pill 15D and the incremental pressure of the upper frame body 12D and the lower frame body 16D and/or the incremental pressure of the sleeve 13D is larger than the critical pressure of gas generation material rupture in the gas pill 15D, and the upper frame body 12D, the lower frame body 16D and the sleeve 13D are all set to be hard structures.
The airpills 15D are nested in the sleeve 13D, the sleeve 13D wraps the side edge of the airpills 15D, the inner side of the top end of the upper frame body 12D is in close contact with the airpill base 14D, and the inner side of the lower frame body 16D is in close contact with the bottom of the airpills 15D or the bottom of the sleeve 13D. The sleeve 13D radially and tightly nests and wraps the balloon 15D, and the thickness of the inner wall of the sleeve 13D is treated so that the balloon does not deflect or expand and the like. The large gas pressure of the gas pill 15D is confined by the sleeve 13D, and all the gas generated by the combustion of the gas-generating material in the gas pill 15D is subjected to all the pressures in the sleeve 13D. The upper frame body 12D and the lower frame body 16D limit the upper and lower ends of the high-pressure gas generated in the gas pill 15D in the vertical direction, so that the upper and lower ends do not expand or burst. The top of the upper frame body 12D is provided with a trigger signal input port, and a trigger signal input terminal 11D is arranged on the trigger signal input port and used for receiving a lightning trigger signal by the air ball 15D. The fumarole 17D that framework 16D was equipped with down, gaseous 17D blowout and the injection direction of this fumarole of not wrapping up of following is controllable, and the aperture through the fumarole 17D who establishes diminishes, and the position that sets up as required simultaneously realizes having realized the controllable condition of direction with the contrast of original detonation mode. The limiting barrel 12D and the sleeve 13D are made of high-strength materials such as aluminum steel.
After the gas pill 15D receives the trigger signal input by the trigger signal input terminal 11D, gas is rapidly generated in the gas pill 15D, and the sleeve 13D, the upper frame 12D and the lower frame 16D have good strength and are far greater than the pressure of the gas generated by the gas pill 15D, so that the sleeve 13D, the upper frame 12D and the lower frame 16D cannot crack to generate detonation. After the pressure intensity of the gas generated in the gas pill 15D is greater than the maximum bearing pressure of the surface layer of the gas pill 15D, the gas generated by the gas pill 15D can be ejected from the gas ejecting holes 17D, so that the pressure intensity of the ejected gas is increased, and the operation of controllable gas ejecting direction is realized according to the setting size and the position of the gas ejecting holes 17D. And in the burning process of the gas pill 15D, the internal gas pressure is increased, so that the burning speed is higher, and the arc extinguishing reaction time is shorter.
As shown in fig. 12, the arc extinguishing effect of the pressurizing assembly 1.3 of the present invention is compared with the effect of the conventional gas generating device, the curve S1 is a graph showing the relationship between the time and the gas pressure of the arc extinguishing effect of the conventional gas generator, and the curve S2 is a graph showing the relationship between the time and the gas pressure of the arc extinguishing effect of the device of the present invention. By comparison, it can be seen that the reaction time required for the conventional gas generator to start extinguishing the arc is t2, whereas the reaction time required for the device of the present application is t1, and t2 is greater than t 1. The contrast that causes this time difference does, the sleeve and the spacing bucket that this application device set up, the sleeve is to the radial restraint of air current, and spacing bucket is to the air current axial restraint, and the increase of pressure in the parcel layer, the moment of flexure improvement of jet orifice department, high atmospheric pressure air current jet. The sum of the base pressure of the gas pill and the incremental pressure of the sleeve is greater than the critical pressure of the gas pill fracture, and the sum of the base pressure of the gas pill and the incremental pressure of the upper frame and the lower frame is greater than the critical pressure of the gas pill fracture, so that the gas pill generates gas at the moment of being ignited, the upper frame and the lower frame cannot deform, the gas pressure is rapidly increased, a common gas generator can deform to a certain extent when generating gas, the volume is increased, and the gas pressure is increased without the high pressure of the gas. According to the relationship between the burning rate and the pressure: the higher the pressure is, the higher the burning speed is, so that the burning speed in the gas pill 4 of the device is higher than the burning speed of fuel in the common gas generator, and the gas spraying time of the device is faster than the gas spraying time block of the common gas generator and the arc extinguishing reaction time.
Meanwhile, comparing the arc extinguishing pressure and the arc extinguishing time, the maximum pressure at the detonation moment of the common gas generator in the curve S1 is P1, and the time period for reaching the pressure is very short, only the moment of detonation is enough, so that the arc extinguishing effect is poor. In the device, the time for reaching the pressure P1 during arc extinction is the time period t1-t3, and the time period t1-t3 is longer than the whole arc extinction time of the common gas generator, so that the arc extinction effect is very good, and the arc generated by a larger voltage transmission line can be extinguished. The reason is that the gas of the device can only be ejected from the gas ejecting holes, and the common gas generator directly explodes and ejects in multiple directions, so that the time for high-voltage arc extinguishing is very short. The time process that the high-pressure gas of the device needs to be sprayed out from the gas spraying holes is t1-t3, so that the gas pressure for arc extinction is high, the time for spraying the gas is long, the arc extinction effect is better, and the arc extinction can be carried out on special occasions and arcs with higher voltage levels. The value of P2 is about ten times of that of P1, and the arc extinguishing gas injection pressure is stronger.
The arc striking unit 6 comprises an arc striking electrode and an arc guiding ring, the arc guiding ring is embedded in the inner side of the nozzle of the gas channel 3, and the arc striking electrode is arranged on the outer side of the gas channel 3 and is connected with the arc guiding ring. One half of the arc striking unit 6 is fixed at the initial gas channel nozzle, the other half is exposed in the air, and the main purpose of the arc striking unit is to guide the lightning arc into the arc extinguishing cylinder.
As shown in fig. 1, 2 and 3, an arc extinguishing path with a multi-gas channel 3 structure is designed, and a plurality of arc extinguishing channels form a complete arc extinguishing structure. And a solid-phase arc extinguishing component 1 is arranged in each gas channel, is designed to be horizontal and equal in height, and can trigger each section of electric arc to generate solid-phase airflow. And a connecting piece 4 is arranged between the adjacent gas channels, and each connecting piece is communicated with the two adjacent gas channels and arranged in a horizontal equal-height manner. Each gas channel is provided with a nozzle in the same direction, and the solid phase gas flow can realize multi-nozzle same-direction injection. An arc striking unit 6 is arranged at a nozzle of the first gas channel, metal embedded rings 5 are arranged in other gas channels, and the embedded rings 5 are also arranged in the arc extinguishing cylinder in an equal height mode.
As shown in fig. 5 and 7, the arc extinguishing path of the multi-gas channel 3 structure is designed, and a plurality of arc extinguishing channels form a complete arc extinguishing structure. And a solid-phase arc extinguishing component 1 is arranged in each gas channel and designed in a step shape, and each section of electric arc can be triggered to generate solid-phase airflow. And connecting pieces 4 are arranged between the adjacent gas channels, and each connecting piece is communicated with the two adjacent gas channels and arranged in a stepped manner. Each gas channel is provided with a nozzle in the same direction, and the solid phase gas flow can realize multi-nozzle same-direction injection. An arc striking unit 6 is arranged at a nozzle of the first gas channel, metal embedded rings 5 are arranged in other gas channels, and the embedded rings are also arranged in the arc extinguishing cylinder in a stepped mode.
As shown in fig. 2 and 6, an arc extinguishing path with a multi-gas channel 3 structure is designed, and a plurality of arc extinguishing channels form a complete arc extinguishing structure. And a solid-phase arc extinguishing component 1 is arranged in each gas channel and designed in a step shape, and each section of electric arc can be triggered to generate solid-phase airflow. And connecting pieces 4 are arranged between the adjacent gas channels, and each connecting piece is communicated with the two adjacent gas channels and is distributed in an annular up-down manner. Each gas channel is provided with a nozzle in the same direction, and the solid phase gas flow can realize multi-nozzle same-direction injection. An arc striking unit 6 is arranged at a nozzle of the first gas channel, metal embedded rings 5 are arranged in other gas channels, and the embedded rings are also annularly distributed up and down in the arc extinguishing cylinder.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
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 (5)
1. A multi-solid-phase airflow multi-stage synchronous arc extinguishing method is characterized by comprising the following steps:
step 1: a plurality of gas channels (3) are arranged, and a conductive connecting assembly is arranged between every two adjacent gas channels (3) to electrically connect the two adjacent gas channels (3);
step 2: an arc striking unit (6) is arranged at the gas jet port end of one gas channel (3) to strike the lightning arc into the gas channel (3);
and step 3: the electric arc is expanded between the gas channels (3) through the conductive connecting assembly, and two ends of the conductive connecting assembly are connection points of the electric arc;
and 4, step 4: the gas arc extinguishing component arranged at the upper end of the gas channel (3) is triggered, high-pressure gas ejected by the gas arc extinguishing component is ejected out of a gas ejection opening of the first gas channel (3) for arc extinguishing, and residual electric arcs enter the adjacent second gas channel (3) through the connecting point of the conductive connecting component to trigger the arc extinguishing component of the second gas channel (3) to extinguish arcs;
and 5: the residual electric arc enters the adjacent third gas channel through the connecting point of the conductive connecting assembly, the arc extinguishing process is repeated, the high-pressure gas drives the electric arc away from the connecting point, the electric arc is damaged and reignited at the connecting point, and the sectional arc extinguishing is finished;
the gas arc extinguishing component in the step 4 is a solid-phase arc extinguishing component, the solid-phase arc extinguishing component comprises a rotating shaft (1.1), a rotating disc (1.2) and a plurality of boosting components (1.3), and the rotating disc (1.2) rotates around the rotating shaft (1.1); the gas arc extinguishing assembly is designed to be of the same height type or in a step arrangement type between different gas channels (3), an insulating partition plate (10) is arranged between the gas arc extinguishing assembly and the gas channels (3), and gas injection holes are formed in the insulating partition plate (10);
gas pressurizing assembly (1.3) is including trigger signal input terminal (11A), parcel layer (12A), air pellet base (13A), air pellet (14A) and fumarole (15A), trigger signal input terminal (11A) sets up in air pellet base (13A) upper end, air pellet (14A) set up the lower extreme at air pellet base (13A), parcel layer (12A) parcel is in the outside of air pellet base (13A) and air pellet (14A) to the laminating sets up, parcel layer (12A) and the laminating department of air pellet (14A) are provided with fumarole (15A), parcel layer (12A) set up to hard layer, the basis pressure of air pellet (14A) and the increment pressure sum of parcel layer (12A) are greater than the cracked critical pressure of air pellet (14A).
2. The multi-solid-phase airflow multi-stage synchronous arc extinguishing method according to claim 1, characterized in that: the specific process of the step 1 is as follows:
the outer side of each gas channel (3) is provided with a cylinder wall (2), the cylinder walls (2) are made of high-strength insulating materials, and two adjacent gas channels (3) are separated by the cylinder walls (2);
the gas channels (3) are arranged in the arc extinguishing cylinder body (7), the arc extinguishing cylinder body (7) is of a cylindrical arc extinguishing cylinder structure with a hollow interior, and the gas channels (3) are distributed in the cylinder wall of the cylindrical arc extinguishing cylinder; the gas channels (3) can also be arranged in the arc extinguishing cylinder body (7) in a vortex shape, the arc extinguishing cylinder body (7) is of a solid cylindrical arc extinguishing cylinder structure, the gas channels (3) are distributed in the cylindrical arc extinguishing cylinder in a vortex shape, and the gas channels (3) are distributed outwards in a vortex shape from the center;
the outside of arc extinguishing section of thick bamboo body (7) is encircleed to be provided with and climbs arc limit (8), climbs arc limit (8) and sets up to the insulating material limit, fixes the outside at arc extinguishing section of thick bamboo body (7) alternately, gaseous arc extinguishing subassembly nestification sets up and climbs arc limit (8).
3. The multi-solid-phase airflow multi-stage synchronous arc extinguishing method according to claim 1, characterized in that: the conductive connecting assembly in the step 1 comprises a connecting piece (4) and an embedded ring (5), the embedded ring (5) is embedded in the gas channel (3), one end of the connecting piece (4) is connected with the embedded ring (5), and the other end of the connecting piece is connected with the adjacent gas channel (3);
the conductive connecting components are arranged in a vortex step distribution mode in the plurality of gas channels (3).
4. The multi-solid-phase airflow multi-stage synchronous arc extinguishing method according to claim 1, characterized in that: the specific process of the step 3 is as follows:
the electric arc enters the gas channel (3) and then is conducted to the adjacent gas channel (3) through the conductive connecting assembly, the conductive connecting assembly is used for communicating the plurality of gas channels (3), and the electric arc forms a complete electric arc path through the conductive connecting assembly.
5. The multi-solid-phase airflow multi-stage synchronous arc extinguishing method according to claim 4, characterized in that: and in the step 2, the arc striking unit (6) comprises an arc striking electrode and an arc guide ring, the arc guide ring is embedded in the inner side of the nozzle of the gas channel (3), and the arc striking electrode is arranged on the outer side of the gas channel (3) and is connected with the arc guide ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910538029.8A CN112117656B (en) | 2019-06-20 | 2019-06-20 | Multi-solid-phase airflow multi-section synchronous arc extinguishing method and system |
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| CN201910538029.8A CN112117656B (en) | 2019-06-20 | 2019-06-20 | Multi-solid-phase airflow multi-section synchronous arc extinguishing method and system |
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| CN112117656A CN112117656A (en) | 2020-12-22 |
| CN112117656B true CN112117656B (en) | 2022-04-01 |
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| CN201910538029.8A Active CN112117656B (en) | 2019-06-20 | 2019-06-20 | Multi-solid-phase airflow multi-section synchronous arc extinguishing method and system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103069673A (en) * | 2010-08-04 | 2013-04-24 | 德恩及索恩两合股份有限公司 | Arcing horn arrester with deionization chamber |
| CN105977789A (en) * | 2016-06-01 | 2016-09-28 | 武汉新电电气技术有限责任公司 | Spiral multi-gap lightning arrester |
| CN107508144A (en) * | 2017-09-10 | 2017-12-22 | 王巨丰 | Longitudinal both sides distribution coulomb force compresses draw thunder arc extinguishing ball |
| CN107578864A (en) * | 2017-08-24 | 2018-01-12 | 王巨丰 | A kind of tortuous synchronous compression arc extinguishing lightning protection device with four side injection channels |
| CN210325632U (en) * | 2019-06-20 | 2020-04-14 | 王巨丰 | Multi-solid-phase airflow multi-section synchronous arc extinguishing device |
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2019
- 2019-06-20 CN CN201910538029.8A patent/CN112117656B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103069673A (en) * | 2010-08-04 | 2013-04-24 | 德恩及索恩两合股份有限公司 | Arcing horn arrester with deionization chamber |
| CN105977789A (en) * | 2016-06-01 | 2016-09-28 | 武汉新电电气技术有限责任公司 | Spiral multi-gap lightning arrester |
| CN107578864A (en) * | 2017-08-24 | 2018-01-12 | 王巨丰 | A kind of tortuous synchronous compression arc extinguishing lightning protection device with four side injection channels |
| CN107508144A (en) * | 2017-09-10 | 2017-12-22 | 王巨丰 | Longitudinal both sides distribution coulomb force compresses draw thunder arc extinguishing ball |
| CN210325632U (en) * | 2019-06-20 | 2020-04-14 | 王巨丰 | Multi-solid-phase airflow multi-section synchronous arc extinguishing device |
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| CN112117656A (en) | 2020-12-22 |
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