CN201156037Y - Pyrotechnic compound combustion and explosion performance detector - Google Patents
Pyrotechnic compound combustion and explosion performance detector Download PDFInfo
- Publication number
- CN201156037Y CN201156037Y CNU2007200649031U CN200720064903U CN201156037Y CN 201156037 Y CN201156037 Y CN 201156037Y CN U2007200649031 U CNU2007200649031 U CN U2007200649031U CN 200720064903 U CN200720064903 U CN 200720064903U CN 201156037 Y CN201156037 Y CN 201156037Y
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Abstract
The utility model relates to a burning and blasting performance detector for explosive, which comprises a testing cavity which can be opened or closed and a control board; a memory type pressure gauge is arranged on the testing cavity to test the impact pressure; a temperature sensor is arranged inside the cavity to test the temperature variation value inside the cavity; a transparent bolt is arranged on the cavity to detect the firing; an agent cup is arranged on the bottom plate of the cavity; a pair of binding posts passing through the bottom plate is arranged beside the agent cup; a resistance wire is bridged between the binding posts to form an ignition circuit; one end of a firing cable is inserted into the tested agent through the transverse small hole of the agent cup, and the other end is inserted into the resistance wire to realize the firing; an electric relay is arranged on the control board for the power-on timing of each ignition. The detector has the advantages that a fully independent method is adopted to perform the special testing for the burning and blasting performance of the explosive. The burning and blasting performance of the tested agent can be conveniently, rapidly, and correctly tested and judged, and the affection to the testing result from other interference factors can be avoided.
Description
Technical field
The utility model relates to pyrotechnic composition combustion explosion Performance Detection instrument.
Background technology
Gunpowder is one of Ancient Chinese generation " four inventions "; Before the manufacturing history of fireworks, firecrackers can be traced back to 1300.Although with a long history, production technology of the sector and quality management means are still very backward.
When pyrotechnic composition is lighted in the paper web of sealing, fierce chemical reaction can take place, and in a short period of time, discharge a large amount of heats and gas, the energy of being assembled causes paper web to be blasted.The principle of Here it is the quick-fried sound of firecrackers.If the Detonating Characteristics of pyrotechnic composition is relatively good, just can use less dose, produce the firecrackers of better quality.
The Detonating Characteristics parameter of pyrotechnic composition mainly is meant indexs such as its thermal discharge when combustion explosion, gas generating amount, reaction velocity.Adopt different prescriptions, different brand or storage period different starting material, the pyrotechnic composition that is mixed, the difference of its combustion explosion performance is very big.
Before this, there are not special pyrotechnic composition performance test means.People want to understand the performance of firecrackers medicament, can only rely on experience and classic method, promptly make some firecrackers, by setting off, listen its sound and observe fried tube effect, thereby pass judgment on.This way required time is long, and consume material is many; And key issue also is, factors such as the degree of tightness of paper web, papery characteristic, powder charge error, sealing mode, lead quality, very big to the influence of test effect, even can cover the actual performance of gunpowder, when quality problems appear in the firecrackers product, often be difficult to judge its basic reason.Just because of this, the starting material inferior on the market are also just increasing.
Therefore, can have a kind of accurate, the quick and easy firework medicament and the means of testing of material property thereof, become expecting earnestly of fireworks, this ancient industry of firecrackers already.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective, a kind of means of testing novelty is provided, fast, accurately and ad hoc detects and judge the detector of the quality of pyrotechnic composition Detonating Characteristics.
The technical solution of the utility model is: adopt a kind of pyrotechnic composition Detonating Characteristics detector, comprise and can open fast or airtight test cavity and control desk; Described test cavity comprises cavity cover plate and well floor, is respectively arranged with the memory-type tensimeter on the described cavity cover plate and stretches into the interior temperature sensor of cavity;
Place one in the centre of well floor and be used to lay the medicament handleless cup that tested firework medicament and side have a horizontal aperture;
Be provided with on the next door of medicament handleless cup a pair of pass well floor and with the binding post of its insulated enclosure; Being provided with one is the resistance wire that encircles circular configuration and is connected across between two binding posts;
Between medicament handleless cup and the resistance wire fuse is set.One end of fuse passes the centre that the horizontal aperture on the medicament handleless cup inserts tested medicament, and the other end inserts in the ring-like circle of resistance wire.
Control desk is provided with the time relay, ignition switch, power switch and temperature indicator.
Simultaneously, on the cavity cover plate, also be provided with a transparent bolt.
On the hot spot ignition circuit, adopted a relay of setting conduction time for resistance wire.
On the cavity cover plate, also be provided with vent valve and safety valve.
Set memory-type tensimeter on the cavity cover plate of this detector, the pressure maximal value that in cavity, produces when being used to measure the pyrotechnic composition combustion explosion.
The temperature sensor that stretches in the cavity is installed, the temperature change value when measuring the pyrotechnic composition combustion explosion in the cavity on the cover plate of airtight cavity.
The cover plate of test cavity is provided with transparent bolt, in order to the combustion explosion situation of pyrotechnic composition in the observation cavity.
The side of placing in the middle of the test well floor has the medicament handleless cup of horizontal aperture, in order to lay tested pyrotechnic composition;
Be provided with on the next door of medicament handleless cup a pair of pass well floor and with the binding post of its insulated enclosure; Resistance wire is connected across between two binding posts to form the heating ignition circuit;
One end of fuse is passed the centre that the horizontal aperture on the medicament handleless cup inserts tested medicament, and the other end inserts in the ring-like circle of resistance wire, so that be tested medicament igniting.
The time relay that is adopted on the hot spot ignition circuit is used for setting conduction time into resistance wire, and when testing to guarantee to light a fire at every turn, the thermal value of resistance wire is identical.
This detector uses a sealable cavity; Allow the pyrotechnic composition of a little in cavity, fire; Measure surge pressure value when firing by the memory-type tensimeter that is installed with on the cavity; And measure temperature change value before and after firing by the temperature sensor in the cavity; When temperature drops to pretest condition, gaseous state sample and solid product in the Collection and analysis cavity.
By the height of the surge pressure value that above method measured, the energy emission levels that can reflect tested medicament is the quality of comprehensive Detonating Characteristics; Temperature gap before and after firing has then reflected the thermal discharge level of tested medicament.
By measuring of different pyrotechnic composition sample datas, and compare, can detect, pass judgment on out the pyrotechnic composition of some prescription quickly and accurately, perhaps the quality of some material property in the medicament with the data of standard medicine sample.What is more important, this method of testing avoided fully other such as the paper web characteristic, seal level, draw the influence of factors such as mode, lead quality, operate miss admittedly.
The method that the utility model adopted is under equal conditions, adopts identical technological means, measures the correlation parameter that can reflect pyrotechnic composition combustion explosion characteristic, compares then, thereby passes judgment on the quality of tested pyrotechnic composition performance.
The utility model pyrotechnic composition Detonating Characteristics detector has following function:
The pressure lift-off value that A, measurement produce in inside cavity is with the brisance of indirect more tested pyrotechnic composition;
B, measure a certain amount of medicament makes temperature in the cavity in the blast of instrument internal combustion lift-off value, the size that releases energy with this pyrotechnic composition of indirect judgement.As adopt the thermal capacitance of standard medicament calibration system, can also go out the quantitative values of thermal discharge by calculated with mathematical model;
C, according to detecting resulting data, judge raw-material quality by relative method;
D, in cavity, fire a certain amount of medicament, the solid product content when firing by collecting the solid residue in the seal chamber, medicament can roughly being calculated;
E, according to the solid constituent content analysis, can also estimate the gas flow that medicament produces when firing, and can collect gas sample, to analyze the composition of gaseous products by vent valve.
Description of drawings
Fig. 1 is the structural representation of the utility model pyrotechnic composition Detonating Characteristics detector;
Among the figure: 1-memory-type tensimeter; The 2-vent valve; 3-tests cavity; 31-cavity cover plate; The 32-well floor; 4-medicament handleless cup; 41-medicament to be measured; Horizontal aperture on the 42-medicament handleless cup; The 5-fuse; The 6-resistance wire; The 7-binding post; The 8-relay; The 9-ignition switch; The 10-power switch; The 11-temperature indicator; The 12-temperature sensor; The transparent bolt of 13-; The 14-safety valve.
Embodiment
Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.
As shown in Figure 1, the utility model pyrotechnic composition Detonating Characteristics detector comprises that one can be opened or airtight test cavity 3 fast.On the cover plate 31 of cavity 3, memory-type tensimeter 1, vent valve 2, safety valve 14, temperature sensor 12, transparent bolt 13 etc. are installed; In the middle of well floor 32, placing the medicament handleless cup 4 that a side has horizontal aperture 42; And, a pair of binding post 7 that passes well floor 32 and insulated enclosure is installed on the next door of medicament handleless cup 4; Resistance wire 6 is connected across between two binding posts 7; One end of fuse 5 is by the centre of the horizontal aperture 42 insertions medicament 41 to be measured of medicament handleless cup 4 sides, and the other end inserts in the annular ring of resistance wire 6.
In cavity, fire when test, should in medicament handleless cup 4, lay pyrotechnic composition to be measured 41 earlier, an end of fuse 5 is inserted in the middle of the pyrotechnic composition 41 in the medicament handleless cups 4 by aperture 42, and the other end is inserted in the annular ring of resistance wire 6 as pyrotechnic composition; Perhaps, under the situation of taking out medicament handleless cup 4, directly the lead-in wire with firecrackers to be measured inserts in the annular ring of resistance wire 6; Close and lock test cavity 3, start power switch 10, the temperature before the record test; Starting ignition switch 9 and give resistance wire 6 energisings; Fuse 5 is subjected to the heating of resistance wire 6 and is lighted; Fuse 5 after lighting can transmit igniting and make its detonation by the tested medicament 41 in gunpowder handleless cup 4, perhaps ignites firecrackers to be measured.Memory-type tensimeter 1 can measure the mxm. of pressure in the cavity 3 at pyrotechnic composition detonation or firecrackers explosion time, reads this numerical value and is " surge pressure " data; Temperature sensor 12 can show the temperature variation in the cavity 3 by temperature indicator 11, read its highest numerical value, and the temperature reading that this maximum temperature numerical value is deducted before testing is " intensification amount " data; When treating that temperature drops near the temperature before the test, the solid residue or the gaseous state sample that are generated in the collection chamber 3 can carry out chemical composition analysis.
The utility model pyrotechnic composition Detonating Characteristics detector has also been installed a transparent bolt 13 that passes cover plate on cavity 3, in order to monitor the igniting situation in the airtight cavity 3.Whenever tested medicament 41 in cavity 3 during detonation, this transparent bolt 13 can reveal flash of light and bulletin.
The principle of work of the utility model pyrotechnic composition Detonating Characteristics detector is: the combustion explosion of pyrotechnic composition in closed container is a kind of quick heat release and the chemical reaction process that generates gas.Institute's liberated heat is many more, and the air pressure in the cavity will rise highly more; The gas flow that is produced is many more, and the air pressure that forms in airtight cavity also can be big more; And reaction velocity is fast more, and the blast impulse pressure that moment assembles also can be big more.Therefore, " surge pressure " value that this detector measured, the energy emission levels that has reflected tested pyrotechnic composition basically is comprehensive Detonating Characteristics;
And pyrotechnic composition burns in closed container or explosion time institute liberated heat, and the temperature in the container is raise rapidly.Thermal discharge is big more, and temperature rises highly more.Measure the numerical value (the maximum temperature reading after the igniting deducts prefiring equilibrium temperature reading) that temperature raises in the cavity, can reflect the thermal discharge level of tested pyrotechnic composition; The influence that may bring for the time heat that increases to system different in size of getting rid of resistance wire heating igniting does not wait, the utility model detector has adopted a time relay on firing circuit, its effect is to allow resistance wire equate in the time of each heating energising, thereby the heat that sends is also identical;
If the air before the test in the emptying cavity also is full of nitrogen or inert gas, after tested medicament igniting fires, and waiting temperature is when reducing to temperature before the test, and solid residue or gas sample in the collecting chamber can carry out chemical composition analysis.Why need atmosphere of inert gases, be because pyrotechnic composition mostly is negative oxygen design aspect oxygen balance, if combustion explosion under the conditions of air is being arranged, some reductive agent (as sulphur etc.) will with airborne oxygen generation chemical reaction, make chemical composition analysis become complicated.
Claims (5)
1, a kind of pyrotechnic composition Detonating Characteristics detector, it is characterized in that: comprise quick unlatching or airtight test cavity (3) and control desk, described test cavity (3) comprises cavity cover plate (31) and well floor (32), is respectively arranged with memory-type tensimeter (1) on the described cavity cover plate (31) and stretches into the interior temperature sensor (12) of cavity;
The centre of described well floor (32) is being placed one in order to lay the medicament handleless cup (4) of tested firework medicament (41), and the side of this medicament handleless cup (4) has one in order to pass the horizontal aperture (42) of fuse;
The next door of described medicament handleless cup (4) be provided with a pair of pass well floor (32) and with the binding post (7) of its insulated enclosure, a resistance wire (6) that is ring shape structure is set is connected across between two binding posts (7) to form the heating ignition circuit;
Between described medicament handleless cup (4) and resistance wire (6) fuse (5) is installed, an end of fuse (5) passes the centre that horizontal aperture (42) on the medicament handleless cup (4) inserts tested medicament (41), and the other end inserts in the ring-like circle of resistance wire (6);
Described control desk is provided with the time relay (8), ignition switch (9), power switch (10) and temperature indicator (11).
2, pyrotechnic composition Detonating Characteristics detector as claimed in claim 1 is characterized in that: the cover plate (31) of test cavity (3) is provided with the transparent bolt (13) that is used to observe the interior pyrotechnic composition combustion explosion of cavity (3) situation.
3, pyrotechnic composition Detonating Characteristics detector as claimed in claim 1 is characterized in that: adopted a relay (8) of setting conduction time for resistance wire (6) on the hot spot ignition circuit.
4, pyrotechnic composition Detonating Characteristics detector as claimed in claim 1 is characterized in that: cavity cover plate (31) is provided with the decompression that is used to uncap, pump drainage flue gas and collects the vent valve (2) of gas sample.
6, pyrotechnic composition Detonating Characteristics detector as claimed in claim 1, it is characterized in that: cavity cover plate (31) is provided with a safety valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200649031U CN201156037Y (en) | 2007-11-01 | 2007-11-01 | Pyrotechnic compound combustion and explosion performance detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200649031U CN201156037Y (en) | 2007-11-01 | 2007-11-01 | Pyrotechnic compound combustion and explosion performance detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201156037Y true CN201156037Y (en) | 2008-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200649031U Expired - Fee Related CN201156037Y (en) | 2007-11-01 | 2007-11-01 | Pyrotechnic compound combustion and explosion performance detector |
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| CN (1) | CN201156037Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382533B (en) * | 2008-10-15 | 2011-10-05 | 西安近代化学研究所 | Device for testing powder combustion characteristics in vacuum condition |
| CN102445465A (en) * | 2011-09-21 | 2012-05-09 | 周磊 | Chemical gas phase risk detection system with pressure-resistant and corrosion-resistant sealing device |
| CN102608160A (en) * | 2012-03-01 | 2012-07-25 | 西安近代化学研究所 | Testing system for critical pressure during thermal explosion of explosives |
| CN105136856A (en) * | 2015-10-13 | 2015-12-09 | 国家安全生产监督管理总局化学品登记中心 | Dust burning explosion tester with temperature-controllable ignition device |
| CN106093298A (en) * | 2016-06-01 | 2016-11-09 | 西安近代化学研究所 | A kind of Propellant combustion gas composition test method |
| CN106324033A (en) * | 2016-08-16 | 2017-01-11 | 西安近代化学研究所 | Visualized explosive cooking-off and gas product analysis device |
| CN106871749A (en) * | 2017-03-01 | 2017-06-20 | 徐伟明 | A kind of device for determining fireworks and firecrackers impulsive force |
| CN109668932A (en) * | 2017-10-17 | 2019-04-23 | 中国石油化工股份有限公司 | For quickly testing the device and method of fuel gas firing temperature |
| CN112098460A (en) * | 2020-08-25 | 2020-12-18 | 中国人民解放军32181部队 | Coupling burning method based on special burning device for propellant powder grains |
| CN114034731A (en) * | 2021-11-04 | 2022-02-11 | 西南科技大学 | Dual-function determination device and method for explosive heat and explosive pressure of energetic material |
-
2007
- 2007-11-01 CN CNU2007200649031U patent/CN201156037Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382533B (en) * | 2008-10-15 | 2011-10-05 | 西安近代化学研究所 | Device for testing powder combustion characteristics in vacuum condition |
| CN102445465A (en) * | 2011-09-21 | 2012-05-09 | 周磊 | Chemical gas phase risk detection system with pressure-resistant and corrosion-resistant sealing device |
| CN102608160A (en) * | 2012-03-01 | 2012-07-25 | 西安近代化学研究所 | Testing system for critical pressure during thermal explosion of explosives |
| CN102608160B (en) * | 2012-03-01 | 2013-11-06 | 西安近代化学研究所 | Testing system for critical pressure during thermal explosion of explosives |
| CN105136856A (en) * | 2015-10-13 | 2015-12-09 | 国家安全生产监督管理总局化学品登记中心 | Dust burning explosion tester with temperature-controllable ignition device |
| CN106093298B (en) * | 2016-06-01 | 2018-01-23 | 西安近代化学研究所 | A kind of Propellant combustion gas composition test method |
| CN106093298A (en) * | 2016-06-01 | 2016-11-09 | 西安近代化学研究所 | A kind of Propellant combustion gas composition test method |
| CN106324033A (en) * | 2016-08-16 | 2017-01-11 | 西安近代化学研究所 | Visualized explosive cooking-off and gas product analysis device |
| CN106871749A (en) * | 2017-03-01 | 2017-06-20 | 徐伟明 | A kind of device for determining fireworks and firecrackers impulsive force |
| CN109668932A (en) * | 2017-10-17 | 2019-04-23 | 中国石油化工股份有限公司 | For quickly testing the device and method of fuel gas firing temperature |
| CN112098460A (en) * | 2020-08-25 | 2020-12-18 | 中国人民解放军32181部队 | Coupling burning method based on special burning device for propellant powder grains |
| CN112098460B (en) * | 2020-08-25 | 2021-09-17 | 中国人民解放军32181部队 | Coupling burning method based on special burning device for propellant powder grains |
| CN114034731A (en) * | 2021-11-04 | 2022-02-11 | 西南科技大学 | Dual-function determination device and method for explosive heat and explosive pressure of energetic material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20091201 |