CN106706704A - Serial sealed combustor device and testing method of relationship of explosive combustion speed, and pressure and temperature - Google Patents
Serial sealed combustor device and testing method of relationship of explosive combustion speed, and pressure and temperature Download PDFInfo
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- CN106706704A CN106706704A CN201611021901.4A CN201611021901A CN106706704A CN 106706704 A CN106706704 A CN 106706704A CN 201611021901 A CN201611021901 A CN 201611021901A CN 106706704 A CN106706704 A CN 106706704A
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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
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
- G01N25/26—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures using combustion with oxygen under pressure, e.g. in bomb calorimeter
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Abstract
The invention discloses a serial sealed combustor device and a testing method of a relationship of an explosive combustion speed, and pressure and temperature. The device disclosed by the invention is composed of a barrel body, a sealing part and eaters, wherein a pressure sensor is arranged at the upper end of the barrel body and the sealing part is arranged at an opening at the lower end of the barrel body and is used for sealing; the sealing part is composed of a fixed ring and an insulating plug; the insulating plug is fixedly mounted in a fixed ring clamping groove; the fixed ring and the barrel body are sealed through an O-shaped sealing ring; a guide hole in the insulating plug is matched with a wiring terminal under the fixed ring; and the heaters are uniformly arranged on a wall of the barrel body. According to the serial sealed combustor device disclosed by the invention, a plurality of test sample explosive pillars are arranged on the insulating plug and a testing line is connected between the adjacent test sample explosive pillars; the testing line is connected with peripheral testing equipment through the guide hole and the wiring terminal; the temperature in the equipment is tested, and the explosive combustion speed and the pressure in the device in an explosive combustion process are tested; and the relationship of the explosive combustion speed, and the pressure and the temperature can be calculated. The device and the testing method, disclosed by the invention, can provide new references for an explosive safety evaluation method and a formula design.
Description
Technical field
The present invention relates to a kind of explosive property detection field, and in particular to a kind of tandem closed burner device, explosive combustion
Burn the method for testing of relation between speed and pressure and temperature.
Background technology
Stability of explosive test assessment technology is explosive field very concern.In recent years, with explosive energy
The continuous improvement of energy, thing followed safety issue is increasingly protruded.The security of explosive is studied, security test is be unable to do without
Assessment technology, thus the security test assessment technology of explosive increasingly causes the concern of people.In formulation designs identification
In the stage, must just experimental test be carried out to its security, by its security of various test thoroughly evaluating.Wherein, explosive
Burn rate be exactly one of method of testing.
The method of traditional test energetic material burn rate includes target collimation method and closed burner method.But, conventional target line
Method can only test the Mean Speed of energetic material under single pressure, it is impossible to measure explosive inflammation speed with pressure change relation；Survey
Examination burning situation pressure is low；The burn rate magnitude of test is no more than 100mm/s, uses narrow range.Conventional containment burner method is calculated
Energetic material burn rate needs the accurate treatment of the state equation and heat loss of product gas, it is difficult to realize；It is not able to verify that
Combustion uniformity, test burn rate data is unstable；It is whard to control.
Therefore, the method for testing and its device of the explosive inflammation speed for setting up new are needed badly at present, to increase stability of explosive
The diversity of assessment, for the security for distinguishing different formulations provides new selection.
The content of the invention
[technical problem to be solved]
Present invention aim to address above-mentioned prior art problem, there is provided a kind of tandem closed burner device, explosive combustion
Burn the method for testing of relation between speed and pressure and temperature.
[technical scheme]
In order to reach above-mentioned technique effect, the present invention takes following technical scheme：
A kind of tandem closed burner device, it is made up of cylinder, seal and heater；The upper end of the cylinder is close
Envelope, pressure sensor is provided through in the upper end wall of cylinder；The cylinder lower ending opening, is provided with sealing at lower ending opening
Part, the seal is made up of retainer ring and insulating plug, and the retainer ring is provided with the draw-in groove of energy fixed insulation plug, described exhausted
Edge plug is fixedly mounted in the draw-in groove in retainer ring, and a circle O-ring seal is additionally provided with around the retainer ring；The retainer ring
Under binding post is installed, pilot hole is provided with the insulating plug, the pilot hole is equipped with binding post；And the wiring
Post is radially fixed by retainer ring, and clamp nut axial restraint is set by binding post lower end；The heater is uniformly arranged
Outside barrel wall.
The present invention further technical scheme, igniter is additionally provided with the cylinder, and the igniter is arranged on
Test specimen top, the test specimen is placed on insulating plug upper surface.
The present invention further technical scheme, places on the insulating plug and is also equipped with being oriented to around test specimen
Post.
The present invention further technical scheme, the binding post runs through multiple connector lugs, and binding post two ends connect respectively
The holding wire of p-wire and external test facility in cylinder, the p-wire is connected through pilot hole with test specimen.
The present invention further technical scheme, the heater is heating tape, is spirally looped around outside barrel wall.
The present invention further technical scheme, the cylinder uses yield strength to be prepared for the material of 800~1200MPa
Form, device design pressure reaches 400MPa.
A kind of method of testing of relation between explosive inflammation speed and pressure and temperature, the method applies above-mentioned tandem
Closed burner device, it is comprised the following steps：
(1) take the stacking of multistage sample powder column and be placed on insulating plug middle, p-wire is arranged between two adjacent samples powder columns,
P-wire is connected to one end of binding post by the pilot hole on insulating plug, and the binding post other end connects the letter of external test facility
Number line；Then the seal for being placed with sample powder column is arranged on cylinder lower end, sealing；
(2) temperature of tandem closed burner device is set by heater；And be heated to sample powder column preset initial
Temperature；
(3) and then use ignition device, the time signal of sample powder column is recorded using external test facility, according to sample
The position of powder column, calculates the burn rate of sample powder column；Using in device in pressure sensor record sample powder column combustion process
Pressure data；
(4) pressure data and burn rate the analysis burn rate and the relation of pressure for being obtained according to step (3)；
(5) according to step (2) set different temperatures data and step (3) obtain burn rate analysis burn rate with
The relation of temperature.
The present invention is will be described in detail below.
The present invention establishes explosive inflammation speed and pressure dependence test method, obtains explosive inflammation speed in the range of mesohigh
Rate and pressure dependence empirical equation and explosive inflammation Mode change characteristic, the security of explosive after assessment non-percussion igniting.This
Invention introduces explosive tandem displacement structure, can adjust explosive test dose, and use closed environment structure design, it is ensured that burning
Environment can reach pressure higher, in order to measure the burn rate of explosive in broad pressure limit, study explosive heat transfer
Burn to convective burning Mode change characteristic.Cylinder of the invention uses high intensity compliant material, design pressure to reach 400MPa,
Its top two pressure sensor mounting hole of decision design, middle tandem places multistage sample powder column, cloth between each pair powder column
Put burning model p-wire.Lead column is installed around powder column, for connecting ignition lead, and passes through igniter on powder column top
Lighted a fire.Sample is placed in insulating plug upper surface, and is provided with pilot hole, coordinates with binding post, for installing p-wire.Binding post
Upper end coordinates with insulating plug lower end is installed, and its lower end and outside are installed with clamp nut and retainer ring, carry out axial direction and footpath respectively
To fixation, sealed by retainer ring top male cone (strobilus masculinus) in process of the test, by clamp nut load.Binding post runs through multiple wiring
Head, the holding wire of p-wire and external test facility in connector drum.During experiment, after ignition device, combustion front with
The mode of aspect is propagated along powder column, and when combustion front arriving signal p-wire, fuse signals line generation time signal, treatment is obtained
Time signal and combine flame front position, calculate the burn rate for obtaining sample, combination pressure Sensor monitoring combustion chamber
Pressure data, analysis obtains the relation of sample burn rate and pressure.Additionally, being (fire damage under research explosive different temperatures
Degree) combustion characteristics, heating tape is installed on the outside of cylinder, carry out hot loading to sample, obtain explosive inflammation speed and temperature it
Between relation.
Powder column tandem stacking in tandem closed burner device of the invention is placed, and can change powder column quantity, regulation combustion
Burn the accessible scope of environmental pressure；The heater of the device hot can be loaded；And device volume of the invention is small, high pressure,
Good airproof performance.
[beneficial effect]
The present invention compared with prior art, with following beneficial effect：
Apparatus of the present invention and method of testing can obtain in basic, normal, high pressure limit to descend between explosive inflammation speed and pressure
Relation, and data stability is good；Test explosive inflammation velocity magnitude is high；Sample can be heated, sample occur different
The fire damage of degree, obtains affecting laws of the temperature to sample burn rate；The combustion characteristics of various sample can be obtained, assessment is not
With the security of explosive.
Brief description of the drawings
Fig. 1 is the structural representation of tandem closed burner device of the present invention.
Specific embodiment
With reference to embodiments of the invention, the invention will be further elaborated.
Embodiment：
A kind of tandem closed burner device, it is made up of cylinder 1, seal and heater 7；The upper end of the cylinder
Sealing, is provided through pressure sensor 8 in the upper end wall of cylinder；The cylinder lower ending opening, is provided with close at lower ending opening
Sealing, the seal is made up of retainer ring 4 and insulating plug 5, and the retainer ring is provided with the draw-in groove of energy fixed insulation plug, institute
State insulating plug to be fixedly mounted in the draw-in groove in retainer ring, a circle O-ring seal 3 is additionally provided with around the retainer ring；It is described
Binding post 11 is installed under retainer ring, pilot hole is provided with the insulating plug, the pilot hole is equipped with binding post；And
The binding post is radially fixed by retainer ring, and the axial restraint of clamp nut 2 is set by binding post lower end；The heater
It is uniformly arranged on outside barrel wall.
Igniter is additionally provided with the cylinder, the igniter is arranged on the top of test specimen 9, the test specimen
It is placed on insulating plug upper surface.
Placed on the insulating plug around test specimen and be also equipped with lead column 6.
The binding post runs through multiple connector lugs, p-wire 10 and external testing in the difference connector drum of binding post two ends
The holding wire of equipment, the p-wire is connected through pilot hole with test specimen.
The heater is heating tape, is spirally looped around outside barrel wall.
The cylinder uses yield strength to be prepared from for the material of 800~1200MPa, and device design pressure reaches
400MPa。
A kind of method of testing of relation between explosive inflammation speed and pressure and temperature, the method applies above-mentioned tandem
Closed burner device, it is comprised the following steps：
(1) take the stacking of multistage sample powder column and be placed on insulating plug middle, p-wire is arranged between two adjacent samples powder columns,
P-wire is connected to one end of binding post by the pilot hole on insulating plug, and the binding post other end connects the letter of external test facility
Number line；Then the seal for being placed with sample powder column is arranged on cylinder lower end, sealing；
(2) temperature of tandem closed burner device is set by heater；And the heating of sample powder column is put preset initial
Temperature；
(3) and then use ignition device, the time signal of sample powder column is recorded using external test facility, according to sample
The position of powder column, calculates the burn rate of sample powder column；Using in device in pressure sensor record sample powder column combustion process
Pressure data；
(4) pressure data and burn rate the analysis burn rate and the relation of pressure for being obtained according to step (3)；
(5) according to step (2) set different temperatures data and step (3) obtain burn rate analysis burn rate with
The relation of temperature.
The current device is used in research and production.The device can effectively measure explosive inflammation speed and pressure and
Relation between temperature, obtains the combustion characteristics of explosive, the security after the non-percussion igniting of assessment explosive.It is close using tandem at present
Close burner apparatus and launch research, obtain the relation between explosive inflammation speed and pressure.The result of the test of acquisition and build
Vertical explosive inflammation speed can be that stability of explosive appraisal procedure and formula design provide reference with pressure dependence test method.
At present, devised during tandem closed burner device all has been used to research and production according to Principle Method.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferably implementation method, embodiments of the present invention are simultaneously not restricted to the described embodiments, it should be appreciated that people in the art
Member can be designed that a lot of other modification and implementation methods, and these modifications and implementation method will fall in principle disclosed in the present application
Within scope and spirit.
Claims (7)
1. a kind of tandem closed burner device, it is characterised in that it is made up of cylinder (1), seal and heater (7)；Institute
The upper end sealing of cylinder is stated, pressure sensor (8) is provided through in the upper end wall of cylinder；The cylinder lower ending opening, lower end
Seal is installed, the seal is made up of retainer ring (4) and insulating plug (5), and the retainer ring is provided with energy at opening
The draw-in groove of fixed insulation plug, the insulating plug is fixedly mounted in the draw-in groove in retainer ring, is additionally provided with around the retainer ring
One circle O-ring seal (3)；Binding post (11) is installed under the retainer ring, pilot hole, the guiding are provided with the insulating plug
Hole is equipped with binding post；And the binding post is radially fixed by retainer ring, compressed by being set in binding post lower end
Nut (2) axial restraint；The heater is uniformly arranged on outside barrel wall.
2. tandem closed burner device according to claim 1, it is characterised in that igniting is additionally provided with the cylinder
Device, the igniter is arranged on test specimen (9) top, and the test specimen is placed on insulating plug upper surface.
3. tandem closed burner device according to claim 2, it is characterised in that place test sample on the insulating plug
Lead column (6) is also equipped with around product.
4. tandem closed burner device according to claim 2, it is characterised in that the binding post runs through multiple wiring
Head, the holding wire of p-wire (10) and external test facility in the difference connector drum of binding post two ends, the p-wire is passed through
Pilot hole is connected with test specimen.
5. tandem closed burner device according to claim 1, it is characterised in that the heater is heating tape, with spiral shell
Rotation shape is looped around outside barrel wall.
6. tandem closed burner device according to claim 1, it is characterised in that the cylinder uses yield strength 800
The material of~1200MPa is prepared from, and device design pressure reaches 400MPa.
7. between a kind of explosive inflammation speed and pressure and temperature relation method of testing, it is characterised in that the method applies power
Profit requires the tandem closed burner device described in 1~6 any one, and it is comprised the following steps：
(1) take the stacking of multistage sample powder column and be placed on insulating plug middle, p-wire is arranged between two adjacent samples powder columns, test
Line is connected to one end of binding post by the pilot hole on insulating plug, and the binding post other end connects the signal of external test facility
Line；Then the seal for being placed with sample powder column is arranged on cylinder lower end, sealing；
(2) temperature of tandem closed burner device is set by heater, and experiment powder column is heated to preset initial temperature；
(3) and then use ignition device, the time signal of sample powder column is recorded using external test facility, according to sample powder column
Position, calculate sample powder column burn rate；Using the pressure in device in pressure sensor record sample powder column combustion process
Force data；
(4) pressure data and burn rate the analysis burn rate and the relation of pressure for being obtained according to step (3)；
(5) burn rate that the different temperatures data and step (3) for being set according to step (2) are obtained analyzes burn rate and temperature
Relation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611021901.4A CN106706704A (en) | 2016-11-17 | 2016-11-17 | Serial sealed combustor device and testing method of relationship of explosive combustion speed, and pressure and temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611021901.4A CN106706704A (en) | 2016-11-17 | 2016-11-17 | Serial sealed combustor device and testing method of relationship of explosive combustion speed, and pressure and temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106706704A true CN106706704A (en) | 2017-05-24 |
Family
ID=58941036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611021901.4A Pending CN106706704A (en) | 2016-11-17 | 2016-11-17 | Serial sealed combustor device and testing method of relationship of explosive combustion speed, and pressure and temperature |
Country Status (1)
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| CN (1) | CN106706704A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082288A (en) * | 2019-06-04 | 2019-08-02 | 西安近代化学研究所 | A kind of explosive impact damage experimental rig |
| CN110095406A (en) * | 2019-06-04 | 2019-08-06 | 西安近代化学研究所 | A kind of explosive impact damage experimental rig and method |
| CN111948255A (en) * | 2020-08-25 | 2020-11-17 | 中国人民解放军32181部队 | Roast device that fires is roasted to single and multinomial coupling of transmission medicine grain |
| 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 |
| CN112666205A (en) * | 2020-12-30 | 2021-04-16 | 山东东珩胶体材料有限公司 | Three way catalyst converter sealing gasket testing arrangement |
| CN113406264A (en) * | 2021-08-20 | 2021-09-17 | 中国工程物理研究院流体物理研究所 | Explosive burning rate non-contact type measurement experiment device and method based on terahertz waves |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082288A (en) * | 2019-06-04 | 2019-08-02 | 西安近代化学研究所 | A kind of explosive impact damage experimental rig |
| CN110095406A (en) * | 2019-06-04 | 2019-08-06 | 西安近代化学研究所 | A kind of explosive impact damage experimental rig and method |
| CN110095406B (en) * | 2019-06-04 | 2021-11-23 | 西安近代化学研究所 | Explosive impact damage test method |
| CN111948255A (en) * | 2020-08-25 | 2020-11-17 | 中国人民解放军32181部队 | Roast device that fires is roasted to single and multinomial coupling of transmission medicine grain |
| 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 |
| CN111948255B (en) * | 2020-08-25 | 2021-11-09 | 中国人民解放军32181部队 | Roast device that fires is roasted to single and multinomial coupling of transmission medicine grain |
| CN112666205A (en) * | 2020-12-30 | 2021-04-16 | 山东东珩胶体材料有限公司 | Three way catalyst converter sealing gasket testing arrangement |
| CN112666205B (en) * | 2020-12-30 | 2022-09-16 | 山东东珩国纤新材料有限公司 | Three way catalyst converter sealing gasket testing arrangement |
| CN113406264A (en) * | 2021-08-20 | 2021-09-17 | 中国工程物理研究院流体物理研究所 | Explosive burning rate non-contact type measurement experiment device and method based on terahertz waves |
| CN113406264B (en) * | 2021-08-20 | 2021-11-16 | 中国工程物理研究院流体物理研究所 | Explosive burning rate non-contact type measurement experiment device and method based on terahertz waves |
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Application publication date: 20170524 |