CN108871132B - Explosion self-destruction device for cylinder test - Google Patents
Explosion self-destruction device for cylinder test Download PDFInfo
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- CN108871132B CN108871132B CN201810671784.9A CN201810671784A CN108871132B CN 108871132 B CN108871132 B CN 108871132B CN 201810671784 A CN201810671784 A CN 201810671784A CN 108871132 B CN108871132 B CN 108871132B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
- F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
- G01N25/54—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining explosibility
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Abstract
The invention provides an explosion self-destruction device for a cylinder test, which comprises an initiator, a detonator A, a self-destruction main body device, a metal partition plate and a detonating cord. The self-destruction main body device consists of a shell, self-destruction explosive and a shaped charge liner. One end of the main charge is a 45-degree conical charge, and the main charge is attached to a shaped charge cover and is arranged in the shell; a detonator hole is reserved at the other end, and a detonator A is inserted into the detonator hole of the self-destructive explosive; the center of the side wall of the shell comprises a detonating hole which is connected with a detonating end of a detonating cord. The metal partition plate is perpendicular to the axial center line of the cylindrical test charge by 45 degrees, a detonation hole of 10mm is formed in the center of the metal partition plate, and a detonation end is installed. An explosion self-destruction device is added, so that the test data of the cylinder test is not influenced; after the cylinder test is normally detonated, the explosive self-destruction device is normally sympathetic exploded without residual explosive; after the cylinder test is not normally detonated, the explosion self-destruction device can carry out the self-destruction pouring type cylinder test without sensitive explosive filling.
Description
Technical Field
The invention belongs to the field of explosives and powders, relates to an explosion self-destruction device, and particularly relates to an explosion self-destruction device for a cylinder test.
Background
The cylinder test is a test for determining the energy release and the ability to accelerate a metallic copper wall when detonation products expand. The explosive to be tested is ignited and increased to a detonation state under the stimulation of the initiation energy provided by the initiation system, and simultaneously works on the metal copper wall to drive the fragment to move. In the test process, the external environment changes, especially the external energy stimulation can interfere the test result, and the test accuracy is influenced. Too high a detonation energy can result in higher test results, thus requiring the detonation energy to be slightly above the critical detonation threshold of the explosive under test. Due to the limitation of detonation energy, the sample is frequently detonated abnormally or quenched in the test process. When the detonation system does not normally detonate explosives, the test assembly process, the line state and the like need to be checked, and the danger is high. The existing conditions cannot realize remote destroy of a charging and detonating system.
Disclosure of Invention
In order to solve the problem that the existing conditions can not realize the remote destroy of the cylindrical test charging including the detonator, the invention aims to provide the explosive self-destruction device for the cylindrical test, which realizes the explosive destroy process of the cylindrical test charging under the abnormal detonation action of the cylindrical test.
The explosion self-destruction device of the invention utilizes the principle that the metal jet flow generated when the explosive conical charge is detonated penetrates through the metal partition plate to generate the destruction effect, and provides an energy source for the self-destruction device; the explosion self-destruction device is arranged at the detonation ending point of the cylinder test explosive charge, and the cylinder test explosive charge is initiated under the abnormal action of the cylinder test initiating device. The invention utilizes the principle that the ignition speed of the detonating fuse is lower than the detonation wave propagation speed of the explosive, and generates time delay effect to destroy the self-destruction device without influencing the test result of the cylinder when the cylinder test is in normal detonation. When the cylindrical test explosive charge is extinguished, the energy generated by the detonation system can generate physical disturbance on the explosion self-destruction device, and the use reliability of the explosion self-destruction device is influenced. When the delay time is too long, the reliability of the explosion self-destruction device is influenced by the blowout of the cylinder test; when the delay time is too small and the cylinder test normally works, the explosion self-destruction device can explode to generate energy, and the accuracy of the cylinder test is influenced. The invention obtains proper delay time, and the cylinder test is quenched and exploded in the time period, so that the self-destruction effect of the self-destruction device is not influenced.
In order to realize the task, the invention adopts the following technical scheme to realize the following steps:
an explosion self-destruction device for a cylinder test comprises an initiator, a detonator A, a self-destruction main body device, a metal partition plate and a detonating cord, wherein:
the detonator outputs a detonation circuit A and a detonation circuit B, the detonation circuit A is connected with a detonator A through a detonation wire, and the detonation circuit B is connected with a detonator B in a cylinder test.
The self-destruction main body device consists of a shell, self-destruction explosive and a shaped charge liner. The diameter of the main charge is 20mm, the length of the main charge is 60mm, one end of the main charge is 45-degree tapered charge, the attached shaped charge is arranged in the shell, and the main charge with the size (the diameter of 20mm, the length of 60mm and the end of the tapered charge being 45 degrees) can achieve the self-destruction purpose of the cylinder test adapted to the patent through test verification, wherein the size is the minimum dose and the optimal angle for achieving the self-destruction of the cylinder test device; a detonator hole with the diameter of 8mm and the depth of 4mm is reserved at the other end, and a detonator A is inserted into the detonator hole of the self-destructive explosive; the center of the side wall of the shell comprises an explosion-conducting hole which is connected with an explosion-conducting end of an explosion-conducting wire, the explosion-conducting wire adopts a standard explosion-conducting wire, and the silver skin explosion-conducting wire with the diameter of 3 mm-6 mm in the patent test meets the experimental requirements.
The diameter of the metal partition plate is not less than 60mm, the thickness of the metal partition plate is 20mm, the metal partition plate is perpendicular to the axial center line of the cylindrical test explosive charge by 45 degrees, a 10mm detonation hole is formed in the center of the metal partition plate, and a detonation end head is installed. The metal partition plate is used for protecting the cylindrical testing device from being directly sympathetic detonated and damaged by the main charge, and the diameter and the thickness of the metal partition plate are the minimum diameter and the minimum thickness which prevent the main charge from directly acting on the cylindrical testing device.
The invention also has the following technical characteristics:
the output time of the detonating circuit A output by the detonator is delayed by 1 millisecond compared with that of the detonating circuit B.
The metal partition plate, the shell and the shaped charge liner are made of beryllium bronze or aluminum alloy or a composite material made of beryllium bronze and aluminum alloy.
The self-destruction explosive can be directly detonated by a detonator, and the detonation velocity is not less than 6000 m/s.
The explosion self-destruction device has the following technical advantages:
(1) an explosion self-destruction device is added, so that the test data of the cylinder test is not influenced;
(2) after the cylinder test is normally detonated, the explosive self-destruction device is normally sympathetic exploded without residual explosive;
(3) after the cylinder test is not normally detonated, the explosion self-destruction device can carry out the self-destruction pouring type cylinder test without sensitive explosive filling.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the self-destructive body apparatus of the present invention;
FIG. 3 is a schematic view of a metal separator according to the present invention;
fig. 4 is a schematic view of a detonating cord according to the present invention.
The meaning of the individual reference symbols in the figures is: 1-an initiator, 2-a detonator A, 3-a self-destruction main body device, 4-a metal partition plate, 5-a detonating cord, 6-a shell, 7-a self-destruction explosive, 8-a liner, 9-a detonator hole, 10-a detonating hole, 11-a detonating hole, 12-a detonating end, 13-a detonating end, 14-a detonating circuit A, 15-a detonating circuit B, 16-a detonator B, 17-a detonating powder, 18-a metal cylinder and 19-a tested explosive.
The details of the present invention will be described in further detail below with reference to the drawings and examples.
Detailed Description
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
Following the above technical solution, as shown in fig. 1, an explosion self-destruction device for cylinder test comprises an initiator (1), a detonator a (2), a self-destruction main body device (3), a metal partition plate (4), and a detonating cord (5), wherein:
the detonator (1) outputs a detonating circuit A (14) and a detonating circuit B (15), the detonating circuit A (14) is connected with a detonator A (2) through a detonating cord, and the detonating circuit B (15) is connected with a detonator B (16) in a cylinder test.
The self-destruction main body device (3) consists of a shell (6), a self-destruction explosive (7) and a shaped charge cover (8). The diameter of the main charge is 20mm, the length is 60mm, one end of the main charge is a tapered charge, and the main charge is attached to a liner (8) and is arranged in the shell (6); a detonator hole (9) with the diameter of 8mm and the depth of 4mm is reserved at the other end, and a detonator A (2) is inserted into the detonator hole (9) of the self-destruction explosive (7); the center of the side wall of the shell (6) comprises a detonating hole (10) which is connected with a detonating end (13) of the detonating cord (5).
The diameter of the metal partition plate (4) is not less than 60mm, the thickness of the metal partition plate is 20mm, the metal partition plate (4) is perpendicular to the axial center line of the cylindrical test explosive charge for 45 degrees, a detonation hole (11) with the diameter of 10mm is formed in the center of the metal partition plate (4), and a detonation head (12) is installed.
The output time of the detonating circuit A (14) output by the detonator (1) is delayed by 1 millisecond compared with that of the detonating circuit B (15). If the detonation circuit B (15) and the detonation circuit A (14) detonate simultaneously or the output time of the detonation circuit A (14) is too short than the delay of the detonation circuit B (15) or the output time of the detonation circuit A (14) is earlier than the output time of the detonation circuit B (15), the energy generated in the self-destruction process influences the test result of the cylinder test; if the output time of the detonation circuit A (14) is too long than the delay of the detonation circuit B (15), when the explosion process of the cylinder test occurs, the initial energy before explosion drives the metal partition plate (4) and the self-destruction main body device (3), and the self-destruction reliability is influenced.
The metal partition plate (4), the shell (6) and the shaped charge liner (8) are made of beryllium bronze or aluminum alloy or a composite material made of beryllium bronze and aluminum alloy. The physical characteristics required by the test device are met by the strength, fatigue resistance, corrosion resistance, wear resistance and high electric and thermal conductivity of the beryllium bronze, the aluminum alloy or the composite material consisting of the beryllium bronze and the aluminum alloy, and the material does not generate electrostatic sparks when impacted, thereby ensuring the safety of the assembly process.
The self-destruction explosive (7) can be directly detonated by a detonator, and the detonation velocity is not less than 6000 m/s. The self-destruction explosive (7) can realize stable self-destruction under the condition that the self-destruction explosive can be detonated by a detonator; the detonation velocity is more than or equal to 6000m/s, and the generated metal jet can penetrate through the metal partition plate (4) to detonate the explosive (19) to be tested in the cylinder test.
The working process of the invention is as follows:
a cylinder test device and an explosive self-destruction device according to the invention were assembled according to fig. 1. In the preferred embodiment, the self-destruction explosive (7) is formed by pressing a poly black-14 c booster explosive, and the detonation velocity is 7250 m/s; beryllium bronze is selected as the metal partition plate (4), the shell (6) and the shaped charge liner (8); the thickness of the shaped charge liner (8) is 1.2 mm; the contact surface of the shaped charge cover (8) and the self-destruction explosive (7) is a 45-degree shaped charge.
The detonator (1) is excited, current is output through the initiation circuit A (14) and the initiation circuit B (15), the initiation circuit B (15) initiates a detonator B (16) in a cylinder test, the detonator B (16) initiates a booster (17) in the cylinder test, and the booster (17) initiates a tested explosive (19) in the cylinder test.
When the explosive to be detected is normally detonated, the explosive to be detected detonates the detonating cord (5) in the self-destruction device, and the detonating cord (5) detonates the self-destruction explosive (7) in the shell (6); the detonation circuit A (14) outputs detonation current to detonate the detonator A (2) after the detonation circuit B (15) outputs 1 millisecond, and the detonator A (2) detonates the self-destructive explosive (7) in the shell (6). The self-destruction explosive (7) in the shell (6) is detonated by the detonator A (2) or the detonating cord (5) to realize self-destruction.
When the explosive to be detected is not normally detonated, the detonation circuit A (14) outputs detonation current to detonate the detonator A (2) after the detonation circuit B (15) outputs 1 millisecond, and the detonator A (2) detonates the self-destructive explosive (7) in the shell (6). And (3) applying the self-destruction explosive (7) to the shaped charge cover (8) to form a metal jet, opening a hole in the metal partition plate (4), and detonating the explosive (19) to be tested which is not normally detonated.
Example of effects:
(1) the cylindrical test of the sea Sael explosive is carried out by referring to a 50mm cylindrical test method in GJB772.308-93 explosive test method, the self-destruction explosive in the preferred embodiment is formed by pressing poly black-14 c booster explosive, and the detonation velocity is 7250 m/s. The front and back tests of the explosive self-destruction device are compared, and the test result shows that the explosive self-destruction device is adopted, so that the test data acquisition is not influenced. After the test of the preferred embodiment, no explosive remains in the explosion field.
(2) Cylindrical tests of the sea Sael explosive and the cast insensitive explosive AFX-757 are carried out by referring to a 50mm cylindrical test method in GJB772.308-93 explosive test method, the self-destructive explosive in the preferred embodiment is formed by pressing poly black-14 c booster explosive, and the detonation velocity is 7250 m/s. After the cylinder test of the preferred embodiment is normally initiated, the explosive self-destruction device is normally sympathetic exploded without residual explosive.
(3) Referring to 50mm cylinder test method in GJB772.308-93 explosive test method, AFX-757 explosive is selected as insensitive explosive to perform cylinder test, booster explosive is replaced by organic glass, self-destruction explosive in the preferred embodiment is prepared by pressing poly black-14 c booster explosive, and the detonation velocity is 7250 m/s. In the test process, the cylinder test is not normally initiated, the explosion self-destruction device detonates the cylinder test device, and after the test, no explosive remains in the explosion field.
Claims (4)
1. An explosion self-destruction device for a cylinder test, which is characterized by comprising an initiator (1), a detonator A (2), a self-destruction main body device (3), a metal partition plate (4) and a detonating cord (5), wherein: the detonator (1) outputs a detonating circuit A (14) and a detonating circuit B (15), the detonating circuit A (14) is connected with a detonator A (2) through a detonating cord, and the detonating circuit B (15) is connected with a detonator B (16) in a cylinder test; the self-destruction main body device (3) consists of a shell (6), a self-destruction explosive (7) and a shaped charge cover (8); the diameter of the self-destruction explosive (7) is 20mm, the length of the self-destruction explosive is 60mm, one end of the self-destruction explosive is in 45-degree conical charge, and the self-destruction explosive is attached to a shaped charge cover (8) and is arranged in the shell (6); a detonator hole (9) with the diameter of 8mm and the depth of 4mm is reserved at the other end, and a detonator A (2) is inserted into the detonator hole (9) of the self-destruction explosive (7); the center of the side wall of the shell (6) comprises an explosion-conducting hole (10), and the explosion-conducting hole (10) is connected with an explosion-conducting end (13) of the explosion-conducting cable (5); the diameter of the metal partition plate (4) is not less than 60mm, the thickness of the metal partition plate is 20mm, the included angle between the metal partition plate (4) and the axial center line of the tested explosive (19) in the cylinder test is 45 degrees, a detonation hole (11) with the diameter of 10mm is formed in the center of the metal partition plate (4), and a detonation tip (12) is installed.
2. The explosive destruct device for cylinder test according to claim 1, wherein said initiator (1) outputs the output time of the initiation circuit a (14) delayed 1 msec from the initiation circuit B (15).
3. The explosive self-destruction device for cylinder tests as claimed in claim 1, characterized in that the metal partition (4), the housing (6) and the liner (8) are made of beryllium bronze or aluminum alloy or a composite material of beryllium bronze and aluminum alloy.
4. The explosive self-destruction device for cylinder tests according to claim 1, characterized in that the self-destruction explosive (7) can be directly detonated by the detonator A (2) and the detonation velocity is not less than 6000 m/s.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810671784.9A CN108871132B (en) | 2018-06-26 | 2018-06-26 | Explosion self-destruction device for cylinder test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810671784.9A CN108871132B (en) | 2018-06-26 | 2018-06-26 | Explosion self-destruction device for cylinder test |
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| CN108871132A CN108871132A (en) | 2018-11-23 |
| CN108871132B true CN108871132B (en) | 2021-05-18 |
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| RU2731956C1 (en) * | 2020-02-03 | 2020-09-09 | Федеральное казенное предприятие "Научно-исследовательский институт "Геодезия" (ФКП "НИИ "Геодезия") | Method for determining conditions for transition of explosive materials combustion into detonation |
| CN111707155B (en) * | 2020-05-15 | 2022-08-16 | 北京机电工程研究所 | Self-destruction system unlocking detonation control circuit |
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| CN203642815U (en) * | 2013-12-24 | 2014-06-11 | 中国人民解放军77156部队保障部 | Waste ammunition energy-gathered detonation destroying device |
| CN108061493A (en) * | 2018-01-07 | 2018-05-22 | 贵州贵安新联爆破工程有限公司 | A kind of long-range igniter for destroying fireworks and firecrackers |
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