CN106767182A - A kind of explosion switch based on multiaspect energy-gathering jetting - Google Patents
A kind of explosion switch based on multiaspect energy-gathering jetting Download PDFInfo
- Publication number
- CN106767182A CN106767182A CN201710177926.1A CN201710177926A CN106767182A CN 106767182 A CN106767182 A CN 106767182A CN 201710177926 A CN201710177926 A CN 201710177926A CN 106767182 A CN106767182 A CN 106767182A
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- CN
- China
- Prior art keywords
- cavity liner
- energy
- conductor
- explosive
- multiaspect
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
- F42B39/02—Cartridge bags; Bandoleers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a kind of explosion switch based on multiaspect energy-gathering jetting, the switch belongs to a kind of normally closed type disposable switch, and it includes destructor, access device and protector.Conductor is cut using energy-gathering jetting, improve the capacity usage ratio of explosive, reduce breaking time, the method being combined using axial energy-gathering jetting and ring energy-gathering jetting simultaneously, two end conductors after disconnection are made to form an interval at a distance, the danger that can effectively prevent the switch disconnected under high-voltage case from being punctured again.Additionally, the present invention does not make any Weakening treatment to conductor, so its excellent in mechanical performance, can well adapt to various severe working environments.
Description
Technical field
The invention belongs to electric switch technical field, and in particular to a kind of explosion switch based on multiaspect energy-gathering jetting, it is
Energy-gathering jetting cutting type disconnect switch, is a kind of normally closed switch, it is adaptable to various automatically controlled occasions, is particularly well-suited to high-power circuit
Protection switch.
Background technology
Blast has the characteristics of acting speed is fast, and acting ability is strong, therefore using explosive as the explosion switch of drive energy
Have the advantages that resistance to high current, breaking velocity be fast compared to traditional electric switch, high impedance after Low ESR open circuit before open circuit.So,
Explosion switch is widely used in high-power circuit and inductive energy storage system.Various countries researchers have successively invented various each
The explosion switch of sample, some switches can reach the electric current of resistance to kilo-ampere up to a hundred and breaking effect can have been realized in 100 microseconds.
Traditional explosion switch operation principle is that the strong impact ripple produced using explosive charge drives cutting body to cut conductor
Cut, so explosive energy utilization rate is not high, and generally needs to carry out Weakening treatment to conductor to improve cutting efficiency, reduce
The mechanical property of switch.And energy-gathering jetting is using the void effect of explosive charge, i.e., to make to form empty in explosive using cavity liner
Cave, detonation product crushes rapidly cavity liner after explosive charge, and the cavity liner after crushing collides convergence for high together at the center line
The particle flux of warm high-voltage high-speed, it possesses very strong cutting power.Therefore can collect using the explosion switch that energy-gathering jetting technology is developed
The energy of middle explosive, reduces the usage amount of explosive, improves the mechanical property of switch.
The content of the invention
It is an object of the invention to provide a kind of explosive energy using rationally, dosage it is few, mechanical strength is high, resistance to high current,
Breaking velocity is fast, disjunction is apart from remote energy-gathering jetting cutting type explosion switch.
The purpose of the present invention is realized by following technical scheme：
A kind of explosion switch based on multiaspect energy-gathering jetting, including destructor, access device and protector, wherein：
The destructor includes multiaspect beehive-shaped charge bag, detonator, detonator and initiator, the multiaspect beehive-shaped charge bag
It is made up of shell, cavity liner and explosive, the shell is circular tube shaped and is provided with end cap, and its material requirements has good insulation
Property.Ring cumulative cavity liner is provided with the middle position of outer casing inner wall, the lower two sides multiple tracks that is provided with symmetrically and evenly (is led to thereon
It is often 4-12 roads) axial cumulative cavity liner.Wherein described ring cumulative cavity liner and axial cumulative cavity liner are by high density gold
Category material is made, and axial cumulative cavity liner cross section can be sub- semicircle, circle and taper etc..Axial cumulative cavity liner is pasted with shell
Close, its inner surface forms hole with the inner surface of shell, and the outer surface of all cavity liners surrounds a cavity, and the inside is equipped with fried
Medicine.The explosive is high-energy-density explosive, such as RDX, TNT.Detonating capsule is mounted in two sides up and down of explosive, it is described
Detonator is high safety nonpriming material detonator, and detonator is connected with initiator by detonator, and two detonators are detonated simultaneously.
The access device includes tubular type conductor and conductor end cap, and the tubular type conductor material is high conductivity gold
Category, preferably red copper；The conductor end cap is cylindric, and its external diameter is consistent with tubular type conductor internal diameter, and can be filled with conductor
With fixation, the inner side of two end conductor end caps carries out perforate, the wherein internal diameter of perforate and multiaspect beehive-shaped charge bag in destructor
External diameter it is consistent, the two can be assembled into an entirety.
The protector includes protection cylinder and protection end cap, and the protection cylinder is made up of high-strength insulating material,
The protection end cap is toroidal, and its external diameter is consistent with the internal diameter of protection cylinder, and is connected, and internal diameter is filled with path
The external diameter for putting middle conductor is consistent, and the two can carry out assembling fixation.
Wherein, in actual fabrication, the size first according to electric current determines the size and material of conductor, such that it is able to basis
Its intensity determines the quantity of the cross sectional dimensions of cavity liner and the explosive payload of explosive and axial cumulative cavity liner.Then further according to
The size of voltage determines to switch off rear disjunction apart from S, that is, intermediate air is breakdown after disconnecting and again conductive safety away from
From.May thereby determine that shaft is S/2 to the length of cumulative cavity liner.Last size and dose further according to Concentrated charge is come true
Determine the size and material of protector.
Operation principle of the invention is：Electric conductor is connected to circuit, and when circuit needs to realize open circuit, initiator sends letter
Number two end detonators are ignited simultaneously, and then explosive is detonated since two ends.Axially propagated to center after explosive initiation,
The shock wave and explosion product of generation crush rapidly the axial linear cavity liner in n roads and to pool n roads high temperature to respective center line high
The jet of pressure, jet first passes through shell and then conductor is cut into n pieces.And when detonation wave passes to centre position, ring cumulative
Cavity liner collapses under pressure and forms one annular energy-gathering jetting, so as to n piece conductors be cut off from centre.Conductor after cut-out
Each will be bent towards the end of oneself under the continuous action of explosion product, that is, it is 2 " flowers with n piece petals to spread out
Piece ".So far, tubular type conductor forms the disjunction of certain distance, realizes breaking effect.
Advantages of the present invention：
1st, present invention utilizes Mohaupt effect, the energy of explosive has been concentrated, thus the usage amount of explosive can have been reduced, improved
Security.
2nd, the explosion switch designed by the present invention does not carry out any Weakening treatment to conductor, so its mechanical property is excellent
It is different, various severe working environments can be applicable.
3rd, the present invention is cut using energy-gathering jetting to conductor, and the generally reachable thousands of metre per second (m/s)s of the speed of jet,
This drives cutting body motion fast (usually hundreds of meters) more than by explosive.So the turn-off time of the switch is quickly.
4th, present invention utilizes the method that axial energy-gathering jetting and ring energy-gathering jetting are combined so that after switching off,
An interval at a distance is formed between two end conductors, this effectively prevents the danger that disconnecting circuit is punctured again.
Brief description of the drawings
Fig. 1 is overall structure axial section of the present invention；
Fig. 2 is the transverse cross-sectional view of sub- semicircle axial direction beehive-shaped charge of the invention；
Fig. 3 is semicircular rings of the present invention to beehive-shaped charge transverse cross-sectional view；
Fig. 4 is axial section of the present invention using semicircle multiaspect loaded constitution of power-assembling；
Fig. 5 is the transverse cross-sectional view of taper axial direction beehive-shaped charge of the present invention；
Fig. 6 is axial section of the present invention using taper multiaspect loaded constitution of power-assembling.
Each figure number component is entitled in figure：1- initiators；2- detonators；3- detonators；4- multiaspect beehive-shaped charge bags；5- leads
Body；6- conductor end caps；7- protects cylinder；8- protects end cap；9- explosives；10- axial directions cumulative cavity liner；11- shells；12- rings
Cumulative cavity liner.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1
As shown in figure 1, a kind of explosion switch based on multiaspect energy-gathering jetting, outermost layer is protection cylinder (7), and size is：
Wall thickness 1cm, height 20cm, internal diameter are 24cm, and material is high-strength epoxy.Lower two sides are provided with the protection that wall thickness is 2cm thereon
End cap (8), its outside is fixed with protection cylinder (7) with bolt, and center is provided with internal diameter and is the through hole of 8.4cm, and passes through
Interference fit is fixed with two ends up and down of conductor (5) respectively.The conductor (5) is shaped as circular tube shaped, and size is：Internal diameter
8cm, wall thickness 0.3cm, height 20cm, material is red copper.Conductor end cap (6) is provided with upper and lower two end in the inner side of conductor (5), its is straight
Footpath is 8.2, is attached with conductor (5) by interference fit.The through hole of a diameter of 0.2cm is provided with center, for passing through
Detonator (2), and diameter 6cm is provided with the inside of it, the breach of 0.2cm high, for fixing multiaspect beehive-shaped charge bag (4).It is described
Multiaspect beehive-shaped charge bag (4) concrete structure is as shown in Figure 2, Figure 3, Figure 4.It has a shell (11), and its material is PVC, size
For：External diameter 6cm, wall thickness is 0.2cm, 16cm high.Ring cumulative cavity liner (12), cross section are provided with its inwall center position
It is the semicircle of radius 1cm.Lower two sides are respectively equipped with 8 roads axial direction cumulative cavity liner (10) thereon, and its cross section is sub- semicircle, high
Spend for 7cm, wall thickness are 1mm, the otch of sub- semicircle towards shell inwall and fit therewith, adjacent two Asias semicircle phase each other
Cut.Explosive (9) is filled with the zone line that all cavity liners are surrounded, explosive (9) used is the hexogen of passivation, and density is about
It is 1.63g/cm3.What the two port up and down of explosive (9) claimed is provided with detonator (3), and detonator (3) and initiator (1) are by detonator
(2) it is attached.
Embodiment 2
As different from Example 1, ring cumulative cavity liner and axial cumulative cavity liner in multiaspect ring beehive-shaped charge bag
It is tapered cavity liner to use cross section, wherein axial cumulative Cone Angle of Liner is 60 degree, and adjacent two cavity liners are outside
It is tangent at shell inwall.Ring cumulative Cone Angle of Liner is also 60 degree, and open end distance is 2cm.
Groundwork process of the invention is：
When circuit needs to realize open circuit, explosive is detonated from two ends, and is propagated to center, makees in powerful blast pressure
Collapsed under pressure with lower axial cumulative cavity liner and be axially formed 8 roads " jet cutter ", when two ends are quick-fried by conductor vertically and be 8
When Hong ripple passes to center, ring cumulative cavity liner collapses under pressure and forms one ring " jet cutter ", and conductor is transversely cut
It is two sections.Conductor after cut-out is each bent under detonation product pressure continuous action to end, and one is formed each other about
The distance of 16cm, it is achieved thereby that breaking.
What the present invention was not disclosed in detail partly belongs to techniques known.
Although being described to illustrative specific embodiment of the invention above, in order to the technology of the art
Personnel understand the present invention, it should be apparent that the invention is not restricted to the scope of specific embodiment, to the common skill of the art
For art personnel, as long as various change is in appended claim restriction and the spirit and scope of the present invention for determining, these
Change is it will be apparent that all utilize the innovation and creation of present inventive concept in the row of protection.
Claims (2)
1. a kind of explosion switch based on multiaspect energy-gathering jetting, it is characterised in that：The explosion switch includes that destructor, path are filled
Put and protector, wherein：
The destructor includes multiaspect beehive-shaped charge bag (4), detonator (3), detonator (2) and initiator (1), and the multiaspect is gathered
Energy powder charge bag is made up of shell (11), cavity liner and explosive (9), and cavity liner includes axial cumulative cavity liner (10) and ring cumulative
Cavity liner (12), the shell (11) is for circular tube shaped and is provided with end cap, and its material requirements has good insulating properties, in shell
(11) middle position of inwall is provided with ring cumulative cavity liner (12), thereon lower two sides symmetrically and evenly be provided with multiple tracks axial direction
Cumulative cavity liner (10), wherein the ring cumulative cavity liner (12) and axial cumulative cavity liner (10) are by high desnity metal material
Material is made, and cross section can be sub- semicircle, circle or taper, and axial cumulative cavity liner (10) is fitted with shell, its inner surface with it is outer
The inner surface of shell forms hole, and the outer surface of all cavity liners surrounds a cavity, and the inside is equipped with explosive (9), described fried
Medicine (9) is high-energy-density explosive, and detonating capsule (3) is mounted in two sides up and down of explosive (9), and the detonator (3) is height
Safe nonpriming material detonator, detonator (3) is connected with initiator (1) by detonator (2), and to two detonators (3) while carrying out
Detonation；
The access device includes tubular type conductor (5) and conductor end cap (6), and tubular type conductor (5) material is high connductivity
Rate metal；The conductor end cap (6) is cylindric, and its external diameter is consistent with tubular type conductor (5) internal diameter, and can be with tubular type conductor
(5) assembling is fixed, and the inner side at two ends conductor end cap (6) carries out perforate, and the wherein internal diameter of perforate gathers with multiaspect in destructor
The external diameter of energy powder charge bag (4) is consistent, and the two can be assembled into an entirety；
The protector includes protection cylinder (7) and protection end cap (8), and protection cylinder (7) is by high-strength insulating material
It is made, protection end cap (8) is toroidal, and its external diameter is consistent with the internal diameter of protection cylinder (7), and is connected,
Internal diameter is consistent with the external diameter of tubular type conductor (5) in access device, and the two can carry out assembling fixation.
2. a kind of explosion switch based on multiaspect energy-gathering jetting according to claim 1, it is characterised in that：In actual fabrication
In, the size first according to electric current determines the size and material of conductor, such that it is able to determine the transversal of cavity liner according to its intensity
The quantity of the explosive payload and axial linear cumulative cavity liner of face size and explosive, then is determining to switch according to the size of voltage
Disjunction is apart from S after disconnection, that is, intermediate air is breakdown after disconnecting and again conductive safe distance, may thereby determine that shaft
It is S/2 to the length of linear shaped cavity liner, the chi of protector is finally being determined according to the size and dose of Concentrated charge
Very little and material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177926.1A CN106767182B (en) | 2017-03-23 | 2017-03-23 | A kind of explosion switch based on multi-panel energy-gathering jetting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177926.1A CN106767182B (en) | 2017-03-23 | 2017-03-23 | A kind of explosion switch based on multi-panel energy-gathering jetting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106767182A true CN106767182A (en) | 2017-05-31 |
| CN106767182B CN106767182B (en) | 2018-07-03 |
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ID=58966590
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710177926.1A Active CN106767182B (en) | 2017-03-23 | 2017-03-23 | A kind of explosion switch based on multi-panel energy-gathering jetting |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867416A (en) * | 2018-07-04 | 2018-11-23 | 中国人民解放军陆军工程大学 | Double-layer flexible explosion circumferential cutting device for large steel bridge cable member |
| CN109378251A (en) * | 2018-09-17 | 2019-02-22 | 中国科学院合肥物质科学研究院 | Explosion switch for Superconducting tokamak nuclear fusion experimental power supply for magnet coils system |
| CN109812252A (en) * | 2018-03-14 | 2019-05-28 | 重庆霓裳科技有限公司 | A kind of surface of revolution cumulative pressure break increases the device of shale gas recovery ratio |
| CN109812253A (en) * | 2018-03-14 | 2019-05-28 | 重庆霓裳科技有限公司 | A kind of cylinder cumulative pressure break increases the device of shale gas recovery ratio |
| CN109931044A (en) * | 2018-03-14 | 2019-06-25 | 重庆霓裳科技有限公司 | A kind of cylinder three combines the device of cumulative pressure break increase shale gas recovery ratio |
| CN109944577A (en) * | 2018-03-14 | 2019-06-28 | 重庆霓裳科技有限公司 | A kind of surface of revolution three combines the device of cumulative pressure break increase shale gas recovery ratio |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812252A (en) * | 2018-03-14 | 2019-05-28 | 重庆霓裳科技有限公司 | A kind of surface of revolution cumulative pressure break increases the device of shale gas recovery ratio |
| CN109812253A (en) * | 2018-03-14 | 2019-05-28 | 重庆霓裳科技有限公司 | A kind of cylinder cumulative pressure break increases the device of shale gas recovery ratio |
| CN109931044A (en) * | 2018-03-14 | 2019-06-25 | 重庆霓裳科技有限公司 | A kind of cylinder three combines the device of cumulative pressure break increase shale gas recovery ratio |
| CN109944577A (en) * | 2018-03-14 | 2019-06-28 | 重庆霓裳科技有限公司 | A kind of surface of revolution three combines the device of cumulative pressure break increase shale gas recovery ratio |
| CN108867416A (en) * | 2018-07-04 | 2018-11-23 | 中国人民解放军陆军工程大学 | Double-layer flexible explosion circumferential cutting device for large steel bridge cable member |
| CN109378251A (en) * | 2018-09-17 | 2019-02-22 | 中国科学院合肥物质科学研究院 | Explosion switch for Superconducting tokamak nuclear fusion experimental power supply for magnet coils system |
| CN109378251B (en) * | 2018-09-17 | 2020-04-24 | 中国科学院合肥物质科学研究院 | Explosion switch for full-superconducting Tokamak nuclear fusion experiment magnet power supply system |
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| Publication number | Publication date |
|---|---|
| CN106767182B (en) | 2018-07-03 |
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