CN112285160A - Strong-constraint closed container for ignition test of insensitive explosive and using method thereof - Google Patents
Strong-constraint closed container for ignition test of insensitive explosive and using method thereof Download PDFInfo
- Publication number
- CN112285160A CN112285160A CN202011114330.5A CN202011114330A CN112285160A CN 112285160 A CN112285160 A CN 112285160A CN 202011114330 A CN202011114330 A CN 202011114330A CN 112285160 A CN112285160 A CN 112285160A
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- China
- Prior art keywords
- ignition
- cavity
- lower shell
- insensitive
- explosive
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- 239000002360 explosive Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims description 11
- 239000003814 drug Substances 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010304 firing Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
Abstract
The invention discloses a strong-constraint closed container for a insensitive explosive ignition test and a using method thereof, wherein the strong-constraint closed container comprises an upper shell and a lower shell, a groove of the lower shell is internally divided into an ignition cavity and a charging cavity, the ignition cavity is used for placing ignition powder, and two screws used for connecting an ignition head are arranged on the outer side of the ignition cavity; the explosive loading cavity is used for placing insensitive explosives, and a plurality of pressure sensor mounting openings for measuring the reaction pressure of the insensitive explosives are arranged on the lower shell at positions corresponding to the explosive loading cavity; the upper shell is hermetically buckled on the lower shell. The invention changes the screw thread connection form of the ignition end of the prior container, adopts the bolt connection mode of the whole container, and increases the wall thickness at the same time to form a strongly-restricted closed container. The tightness of the container is increased, the constraint is strengthened, and the overload of the ignition powder can be borne.
Description
Technical Field
The invention relates to the technical field of ignition devices, in particular to a strong-constraint closed container for a insensitive explosive ignition test and a using method thereof.
Background
Most of the existing ignition devices are cylindrical cavities, the cavities are medicine loading areas, two ends of the existing ignition devices are plugged in a matched mode through two threaded structures, one end of each ignition device is an ignition plug, the other end of each ignition device is a pressure relief plug, and then a pressure sensor is installed on the side wall surface of each ignition device to measure pressure. This arrangement provides a relatively large void in the threads and at the firing end, which results in insufficient initial pressure being generated during firing. Since the container has insufficient sealing property and cannot form a high-pressure environment, even if the amount of the ignition charge is increased, the initial pressure cannot be increased.
Disclosure of Invention
The invention aims to provide a strong-constraint closed container for a insensitive explosive ignition test and a using method thereof, which solve the problems that the initial pressure is insufficient and extremely insensitive explosives cannot be initiated due to insufficient tightness of the container.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a strong-constraint closed container for a insensitive explosive ignition test, which comprises an upper shell and a lower shell, wherein a groove of the lower shell is internally divided into an ignition cavity and a charging cavity, the ignition cavity is used for placing ignition powder, and two screws used for connecting an ignition head are arranged on the outer side of the ignition cavity; the explosive loading cavity is used for placing insensitive explosives, and a plurality of pressure sensor mounting ports for measuring the reaction pressure of the insensitive explosives are arranged on the lower shell corresponding to the explosive loading cavity; the upper shell is hermetically buckled on the lower shell.
Preferably, a metal sheet is arranged in the charging cavity and used for attaching the insensitive explosive in the charging cavity.
Preferably, the quantity of pressure sensor installing port is 4, and 4 pressure sensor installing ports are followed the horizontal equipartition in medicine cavity, and each pressure sensor installing port department all is provided with pressure sensor.
Preferably, a circle of threaded holes are formed in the periphery of the lower shell, and a circle of threaded holes are also formed in the position, corresponding to the threaded holes of the lower shell, of the upper shell.
Preferably, after the threaded holes of the upper shell and the lower shell are in one-to-one correspondence, the upper shell and the lower shell are combined into a whole through bolts penetrating through the threaded holes.
Preferably, the inner cavity of the upper shell is provided with a step-shaped groove, the groove at the top is internally provided with a glass window in a sealing manner, and the groove at the bottom can be communicated with the inner cavity of the lower shell.
The invention also provides a using method of the strong constraint closed container for the insensitive explosive ignition test, which is applied to the strong constraint closed container for the insensitive explosive ignition test and comprises the following steps:
step 1: weighing the initial mass of the insensitive explosive sample;
step 2: weighing the initial mass of the ignition powder;
and step 3: screwing the pressure sensors into the four pressure sensor mounting ports on the back surface of the lower shell, and coating silicone grease on contact sections of the sensors;
and 4, step 4: firstly fixing a metal sheet at one side of a medicine loading cavity of the groove of the lower shell for fixing the position of a sample;
and 5: placing a sample in the charge cavity of the groove of the lower shell, placing a second metal sheet on the other side of the charge cavity, and completely blocking the position of the sample;
step 6: 2, installing an ignition head on a screw of an ignition cavity of a groove of the lower shell, measuring the on-off condition of the ignition head through a nut on the back surface, and pouring weighed ignition powder;
and 7: a glass window is placed in the groove of the upper shell;
and 8: turning over the upper shell and placing the upper shell above the lower shell, and screwing the bolt to enable the upper shell and the lower shell to be combined in a sealing mode;
and step 9: an ignition test was conducted.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention changes the screw thread connection form of the ignition end of the prior container, adopts the bolt connection mode of the whole container, and increases the wall thickness at the same time to form a strongly-restricted closed container. The tightness of the container is increased, the constraint is strengthened, and the overload of the ignition powder can be borne.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a bottom structural view of a lower housing;
FIG. 2 is a cross-sectional view of the lower housing;
FIG. 3 is a top view of the upper housing;
FIG. 4 is a cross-sectional view of the upper housing;
wherein, 1 is a threaded hole; 2, screwing; 3, a pressure sensor mounting port; 4, an ignition cavity; 5 a medicine loading cavity; 6, a slit; 7, grooves; 8 glass window.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a strong-constraint closed container for a insensitive explosive ignition test, which solves the problems that the impact strength is not enough and extremely insensitive explosives cannot be detonated due to insufficient tightness of the container.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-4, the present embodiment provides a strong-constraint closed container for insensitive explosive ignition test, which includes an upper shell and a lower shell, a groove of the lower shell is divided into an ignition cavity 4 and a charging cavity 5, the ignition cavity 4 is used for placing ignition charge, and two screws 2 for connecting an ignition head are arranged outside the ignition cavity 4; the loading cavity 5 is used for placing insensitive explosives, and a plurality of pressure sensor mounting ports 3 for measuring the reaction pressure of the insensitive explosives are arranged at the positions, corresponding to the loading cavity 5, on the lower shell; the upper shell is hermetically buckled on the lower shell.
Specifically, the groove of the lower housing is divided into an ignition chamber 4 and a charging chamber 5. The ignition cavity is used for placing ignition powder to excite the insensitive explosive; the ignition cavity is provided with two screws 2 for connecting an ignition head (igniting ignition powder); the explosive loading cavity is used for placing insensitive explosive, and a metal sheet (the metal sheet adopts a brass gasket) is used for ensuring that the explosive is completely attached to the explosive loading cavity; the loading cavity is provided with four mounting ports 3 for mounting pressure sensors and is used for measuring the reaction pressure of the insensitive explosive. The periphery of the lower shell is provided with threaded holes 1.
The groove 7 of the upper shell is used for placing a glass window 8; the recess 7 of the upper housing is partly through-going and presents a slit 6. The glass window 8 is completely attached to the groove 7, sealing the slit 6. When a closed container is formed, the grooves of the upper shell and the lower shell are completely attached together, and the threaded holes 1 around are fixed by bolts.
The use method of the strong-constraint closed container for the insensitive explosive ignition test comprises the following steps:
step 1: weighing the initial mass of the insensitive explosive sample;
step 2: weighing the initial mass of the ignition powder;
and step 3: screwing the pressure sensors into the four pressure sensor mounting ports on the back surface of the lower shell, and coating silicone grease on contact sections of the sensors;
and 4, step 4: firstly fixing a metal sheet at one side of the medicine charging cavity 5 of the groove of the lower shell for fixing the position of a sample;
and 5: a sample is placed in the medicine charging cavity 5 of the groove of the lower shell, a second metal sheet is placed on the other side of the medicine charging cavity, and the position of the sample is completely clamped;
step 6: 2 ignition heads are arranged on the screws 2 of the ignition cavity 4 of the groove of the lower shell, the on-off condition of the ignition heads is measured through nuts on the back, and then weighed ignition powder is poured in;
and 7: a glass window 8 is placed on the groove 7 of the upper shell;
and 8: turning over the upper shell and placing the upper shell above the lower shell, and screwing the bolt to enable the upper shell and the lower shell to be combined in a sealing mode;
and step 9: an ignition test was conducted.
The strong-constraint closed container for the insensitive explosive ignition test and the use method thereof solve the problems that the impact strength is not enough and extremely insensitive explosives cannot be initiated due to the fact that the container is not strong enough in tightness, adopt a transverse connection mode, fixedly seal the periphery by bolts, increase the wall thickness of the container, and enable the pressure overload of the ignition cavity 4 to be higher. By changing the threaded connection mode of the ignition end of the existing container, the bolt connection mode of the whole container is adopted, and meanwhile, the wall thickness is increased, so that a strong-constraint closed container is formed. The tightness of the container is increased, the constraint is strengthened, and the overload of the ignition powder can be borne.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes 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, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. A strong restraint closed container for insensitive explosive ignition test, its characterized in that: the ignition device comprises an upper shell and a lower shell, wherein a groove of the lower shell is internally divided into an ignition cavity and a powder charging cavity, the ignition cavity is used for placing ignition powder, and two screws used for connecting an ignition head are arranged on the outer side of the ignition cavity; the explosive loading cavity is used for placing insensitive explosives, and a plurality of pressure sensor mounting ports for measuring the reaction pressure of the insensitive explosives are arranged on the lower shell corresponding to the explosive loading cavity; the upper shell is hermetically buckled on the lower shell.
2. A strong containment vessel for use in a insensitive explosive ignition test as claimed in claim 1 wherein: the explosive loading cavity is internally provided with a metal sheet, and the metal sheet is used for attaching the insensitive explosive in the explosive loading cavity.
3. A strong containment vessel for use in a insensitive explosive ignition test as claimed in claim 1 wherein: the quantity of pressure sensor installing port is 4, and 4 pressure sensor installing ports are followed the horizontal equipartition in medicine cavity.
4. A strong containment vessel for use in a insensitive explosive ignition test as claimed in claim 1 wherein: the periphery of the lower shell is provided with a circle of threaded holes, and the position, corresponding to the threaded holes of the lower shell, of the upper shell is also provided with a circle of threaded holes.
5. A strong containment vessel for use in a insensitive explosive ignition test as claimed in claim 4, wherein: after the threaded holes of the upper shell and the lower shell are in one-to-one correspondence, the upper shell and the lower shell are combined into a whole through bolts penetrating through the threaded holes.
6. A strong containment vessel for use in a insensitive explosive ignition test as claimed in claim 1 wherein: the inner cavity of the upper shell is provided with a step-shaped groove, the groove at the top is internally provided with a glass window in a sealing way, and the groove at the bottom can be communicated with the inner cavity of the lower shell.
7. A use method of a strong constraint closed container for a insensitive explosive ignition test is applied to the strong constraint closed container for the insensitive explosive ignition test in any one of claims 1 to 6, and is characterized by comprising the following steps:
step 1: weighing the initial mass of the insensitive explosive sample;
step 2: weighing the initial mass of the ignition powder;
and step 3: screwing the pressure sensors into the four pressure sensor mounting ports on the back surface of the lower shell, and coating silicone grease on contact sections of the sensors;
and 4, step 4: firstly fixing a metal sheet at one side of a medicine loading cavity of the groove of the lower shell for fixing the position of a sample;
and 5: placing a sample in the charge cavity of the groove of the lower shell, placing a second metal sheet on the other side of the charge cavity, and completely blocking the position of the sample;
step 6: 2, installing an ignition head on a screw of an ignition cavity of a groove of the lower shell, measuring the on-off condition of the ignition head through a nut on the back surface, and pouring weighed ignition powder;
and 7: a glass window is placed in the groove of the upper shell;
and 8: turning over the upper shell and placing the upper shell above the lower shell, and screwing the bolt to enable the upper shell and the lower shell to be combined in a sealing mode;
and step 9: an ignition test was conducted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114330.5A CN112285160A (en) | 2020-10-19 | 2020-10-19 | Strong-constraint closed container for ignition test of insensitive explosive and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114330.5A CN112285160A (en) | 2020-10-19 | 2020-10-19 | Strong-constraint closed container for ignition test of insensitive explosive and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112285160A true CN112285160A (en) | 2021-01-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011114330.5A Pending CN112285160A (en) | 2020-10-19 | 2020-10-19 | Strong-constraint closed container for ignition test of insensitive explosive and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112285160A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873411A (en) * | 2005-06-03 | 2006-12-06 | 中国科学院力学研究所 | Device for testing deflagrability of condensed fire detonator under condition of high termerature and high pressure |
| CN201502366U (en) * | 2009-10-20 | 2010-06-09 | 辽宁北方华丰特种化工有限公司 | Secondary ignition detonating primer |
| CN104655504A (en) * | 2015-03-06 | 2015-05-27 | 西安近代化学研究所 | Load test device for explosive shock deformation |
| CN104698121A (en) * | 2015-02-03 | 2015-06-10 | 北京理工大学 | Deflagration to detonation experimental device for gas in microscale pipeline |
| CN107632043A (en) * | 2017-09-20 | 2018-01-26 | 西安近代化学研究所 | A kind of weak impact igniting threshold testing apparatus and method of explosive |
| CN108088949A (en) * | 2018-02-06 | 2018-05-29 | 北京理工大学 | A kind of experimental provision influenced for convective burning on COMBUSTION TO DETONATION TRANSITION and method |
-
2020
- 2020-10-19 CN CN202011114330.5A patent/CN112285160A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873411A (en) * | 2005-06-03 | 2006-12-06 | 中国科学院力学研究所 | Device for testing deflagrability of condensed fire detonator under condition of high termerature and high pressure |
| CN201502366U (en) * | 2009-10-20 | 2010-06-09 | 辽宁北方华丰特种化工有限公司 | Secondary ignition detonating primer |
| CN104698121A (en) * | 2015-02-03 | 2015-06-10 | 北京理工大学 | Deflagration to detonation experimental device for gas in microscale pipeline |
| CN104655504A (en) * | 2015-03-06 | 2015-05-27 | 西安近代化学研究所 | Load test device for explosive shock deformation |
| CN107632043A (en) * | 2017-09-20 | 2018-01-26 | 西安近代化学研究所 | A kind of weak impact igniting threshold testing apparatus and method of explosive |
| CN108088949A (en) * | 2018-02-06 | 2018-05-29 | 北京理工大学 | A kind of experimental provision influenced for convective burning on COMBUSTION TO DETONATION TRANSITION and method |
Non-Patent Citations (1)
| Title |
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| 尚海林: "炸药裂缝中的对流燃烧现象实验研究", 《兵工学报》 * |
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Application publication date: 20210129 |