CN112198191A - Device for judging response power of energetic material - Google Patents
Device for judging response power of energetic material Download PDFInfo
- Publication number
- CN112198191A CN112198191A CN202011203311.XA CN202011203311A CN112198191A CN 112198191 A CN112198191 A CN 112198191A CN 202011203311 A CN202011203311 A CN 202011203311A CN 112198191 A CN112198191 A CN 112198191A
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- China
- Prior art keywords
- explosion chamber
- energetic material
- response power
- column
- groups
- Prior art date
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- 239000000463 material Substances 0.000 title claims abstract description 30
- 238000004880 explosion Methods 0.000 claims abstract description 34
- 230000000903 blocking effect Effects 0.000 claims abstract description 14
- 230000000977 initiatory effect Effects 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000012360 testing method Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011158 quantitative evaluation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels, explosives
- G01N33/227—Explosives, e.g. combustive properties thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
Abstract
The invention discloses a device for judging the response power of an energetic material, which comprises an explosion chamber, wherein a sample groove is arranged in the explosion chamber, a pressure relief hole is formed in the top of the explosion chamber, a blocking column is arranged in the pressure relief hole, two groups of grating sensors are arranged above the explosion chamber and connected with a timing display, and the device also comprises an electric initiation device, and the electric initiation device comprises an electric ignition controller and an initiation detonator. The invention utilizes the pressure generated by the energetic material at the response moment to enable the plugging column to move upwards for a certain height, and the grating sensor records the passing time of the plugging column, thereby calculating the average speed of the plugging column, and the average speed value of the plugging column reflects the response power of the energetic material. The invention has the advantages of simple principle, simple and convenient operation and low cost.
Description
Technical Field
The invention relates to the technical field of testing samples by using explosives, in particular to a device for judging the response power of an energetic material.
Background
The judgment of the response power of the energetic material has important significance for judging the reaction intensity of the material and providing a criterion for distinguishing the power, the reaction intensity of the energetic material is shown, and the safety performance of the energetic material is represented.
At present, the response power of the energetic material is mainly determined by testing the impact generated by response by adopting equipment such as a pressure sensor, on one hand, most of the test processes need to process special tools and connect sensors, and need a specific signal processing device and a data acquisition device, so that the test processes are complex and complex, the related instruments and equipment are more, the test labor and material cost is increased, and the operability is reduced. On the other hand, the equipment and instruments involved in the test process are high in price, and part of the instruments and tools are disposable articles, so that the test cost is increased.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a device for judging the response power of an energetic material, which utilizes the pressure generated by the energetic material at the response moment to enable a plugging column to move upwards for a certain height, and a grating sensor records the passing time of the plugging column, thereby calculating the average speed of the plugging column, wherein the average speed value of the plugging column reflects the response power of the energetic material. The invention has the advantages of simple principle, simple and convenient operation and low cost.
The invention is realized by the following technical scheme: the device for judging the response power of the energetic material comprises an explosion chamber, wherein a sample groove is arranged in the explosion chamber, a pressure relief hole is formed in the top of the explosion chamber, a blocking column is arranged in the pressure relief hole, two groups of grating sensors are arranged above the explosion chamber and connected with a timing display, and the device further comprises an electric initiation device, and the electric initiation device comprises an electric ignition controller and an initiation detonator.
Furthermore, the explosion chamber is a hollow cylinder and consists of an upper half shell and a lower half shell which are hermetically connected through threads.
Furthermore, the head of the plugging column is in a bullet head shape.
Furthermore, the two groups of grating sensors are arranged along the vertical direction, wherein the group of grating sensors positioned below is 0-0.5 cm higher than the top end of the blocking column.
Furthermore, the two groups of grating sensors are fixed on the two iron frames.
Compared with the prior art, the invention has the following advantages:
1. the device is used for judging the response power of the energetic material, has a simple structure, avoids the defect of using a large amount of instruments and equipment, and greatly reduces the test cost.
2. The method represents the response power of the energetic material by calculating the average speed of the plugging column, and has the advantage of quantitative evaluation.
3. The invention improves the operability of the experiment and reduces the restriction of the experiment by the conditions such as the experimental equipment and the like.
The invention is described in detail below with reference to the figures and the specific embodiments.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The first embodiment is as follows:
referring to fig. 1, the device for judging the response power of the energetic material comprises an explosion chamber 4, wherein a sample groove is arranged in the explosion chamber 4, a pressure relief hole is formed in the top of the explosion chamber 4, a blocking column 3 is arranged in the pressure relief hole, two groups of grating sensors are arranged above the explosion chamber 4 and connected with a timing display 7, and the device further comprises an electric initiation device which comprises an electric ignition controller 8 and an initiation detonator.
In this embodiment, the explosion chamber 4 is a hollow cylinder made of stainless steel and is composed of an upper half shell and a lower half shell, which are hermetically connected by a screw thread. The thread is precisely processed to ensure that the explosion chamber has good tightness, can bear explosion pressure and allows repeated use. The top of the explosion chamber 4 is provided with a pressure relief hole, and the lower end of the blocking column 3 can be hermetically connected with the pressure relief hole through tolerance calculation and precision machining. The sample tank in the explosion chamber 4 is used for placing energetic materials.
In this embodiment, the plugging column 3 is a stainless steel cylinder, and the head of the plugging column is in a bullet shape, so that air resistance in the movement process can be reduced, and errors of test results can be reduced.
In this embodiment, two sets of grating sensors are arranged along the vertical direction, and are respectively a low-order grating sensor 6 and a high-order grating sensor 1, wherein the low-order grating sensor 6 is higher than the top end of the blocking column 3 by 0-0.5 cm. The two groups of grating sensors can record the time of the blocking column passing through the two groups of grating sensors, so that the average speed of the movement of the blocking column is calculated, and the response power of the energetic material is reflected. The two groups of grating sensors are fixed on the two iron frames 2, the distance between the two groups of grating sensors is adjustable, and the two iron frames are arranged on two sides of the explosion chamber.
Before the test, the explosion chamber 4 is fixed on a test site to prevent the explosion chamber from shaking in the test process.
The method comprises the steps of test preparation, weighing a certain mass of energetic material sample 5 to be tested, inserting an ignition detonator into the sample to be tested for igniting the sample, placing the sample in a sample groove of a lower half shell of a explosion chamber to be fixed, connecting the ignition detonator with an electric ignition controller 8 through a lead, inserting a plugging column 3 into a pressure relief hole of an upper half shell of the explosion chamber, screwing the upper half shell and the lower half shell of the explosion chamber to seal the explosion chamber, and adjusting the positions of two groups of grating sensors on an iron frame.
During the test, the electric ignition controller is operated to trigger the detonation detonator, the detonation detonator ignites the test sample in the explosion chamber to explode, the response instant pressure of the test sample is increased rapidly, the blocking column is pushed upwards, the time t for the blocking column to pass is recorded by the two groups of grating sensors, and the time t is displayed by the timing display 7. The plug column rises to obtain momentum of
And delta P1 is m x h/t, wherein m is the mass of the plugging column, and h is the distance between the two groups of grating sensors. The larger the average speed value of the motion of the blocking column is, the larger the momentum of the energetic material to the blocking column during explosion is, and the larger the power is.
By testing two or more energetic materials respectively through the tests, the energetic material with higher response power can be judged.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and the related scope of the present invention, which should be covered by the claims of the present invention.
Claims (5)
1. An apparatus for judging the response power of energetic materials, which comprises an explosion chamber (4), wherein a sample groove is arranged in the explosion chamber (4), and is characterized in that: the explosion chamber is characterized in that a pressure relief hole is formed in the top of the explosion chamber (4), a blocking column (3) is arranged in the pressure relief hole, two groups of grating sensors (1) and (6) are arranged above the explosion chamber (4) and are connected with a timing display (7), and the explosion chamber further comprises an electric initiation device which comprises an electric ignition controller (8) and an initiation detonator.
2. The device for determining the magnitude of the response power of an energetic material according to claim 1, wherein: the explosion chamber (4) is a hollow cylinder and consists of an upper half shell and a lower half shell which are hermetically connected through threads.
3. The device for determining the response power of the energetic material as claimed in claim 1 or 2, wherein: the head of the plugging column (3) is in a bullet shape.
4. The device for determining the response power of the energetic material as claimed in claim 1 or 2, wherein: the two groups of grating sensors are arranged in the vertical direction, wherein the group of grating sensors positioned below is 0-0.5 cm higher than the top end of the blocking column.
5. The device for determining the response power of the energetic material as claimed in claim 1 or 2, wherein: the two groups of grating sensors are fixed on the two iron frames (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022228249 | 2020-10-09 | ||
| CN2020222282491 | 2020-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112198191A true CN112198191A (en) | 2021-01-08 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022491971.4U Active CN213749700U (en) | 2020-10-09 | 2020-11-02 | Device for judging response power of energetic material |
| CN202011203311.XA Pending CN112198191A (en) | 2020-10-09 | 2020-11-02 | Device for judging response power of energetic material |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022491971.4U Active CN213749700U (en) | 2020-10-09 | 2020-11-02 | Device for judging response power of energetic material |
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| CN (2) | CN213749700U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN213749700U (en) * | 2020-10-09 | 2021-07-20 | 湖北航天化学技术研究所 | Device for judging response power of energetic material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204044144U (en) * | 2014-09-04 | 2014-12-24 | 湖北航天化学技术研究所 | A kind of judge energetic material electrostatic interaction under the device that responds |
| CN109655576A (en) * | 2019-02-18 | 2019-04-19 | 湖北航天化学技术研究所 | A kind of device of the roasting combustion responsiveness of rapid evaluation solid propellant |
| CN210123409U (en) * | 2019-05-17 | 2020-03-03 | 重庆大学 | Explosion pressure testing device for energetic materials in closed space |
| CN213749700U (en) * | 2020-10-09 | 2021-07-20 | 湖北航天化学技术研究所 | Device for judging response power of energetic material |
-
2020
- 2020-11-02 CN CN202022491971.4U patent/CN213749700U/en active Active
- 2020-11-02 CN CN202011203311.XA patent/CN112198191A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204044144U (en) * | 2014-09-04 | 2014-12-24 | 湖北航天化学技术研究所 | A kind of judge energetic material electrostatic interaction under the device that responds |
| CN109655576A (en) * | 2019-02-18 | 2019-04-19 | 湖北航天化学技术研究所 | A kind of device of the roasting combustion responsiveness of rapid evaluation solid propellant |
| CN210123409U (en) * | 2019-05-17 | 2020-03-03 | 重庆大学 | Explosion pressure testing device for energetic materials in closed space |
| CN213749700U (en) * | 2020-10-09 | 2021-07-20 | 湖北航天化学技术研究所 | Device for judging response power of energetic material |
Non-Patent Citations (1)
| Title |
|---|
| 张继春主编: "《工程控制爆破》", 30 September 2001, 西南交通大学出版社, pages: 20 - 24 * |
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| Publication number | Publication date |
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| CN213749700U (en) | 2021-07-20 |
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