CN208420819U - The experimental system of energetic material crystal auto-ignition under a kind of observation Impulsive load - Google Patents
The experimental system of energetic material crystal auto-ignition under a kind of observation Impulsive load Download PDFInfo
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- CN208420819U CN208420819U CN201820961929.4U CN201820961929U CN208420819U CN 208420819 U CN208420819 U CN 208420819U CN 201820961929 U CN201820961929 U CN 201820961929U CN 208420819 U CN208420819 U CN 208420819U
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Abstract
Energetic material crystal auto-ignition experimental system under a kind of observation Impulsive load, including drive system, hydraulic system, electric-control system, visualization combustion chamber and high-speed photography system；Drive system includes high pressure tank, metal hose, electric butterfly valve, connecting rod and driving cylinder；Hydraulic system includes oil cylinder, fuel tank and compression cylinder.The outlet of high pressure tank passes through the entrance of connection by metal hose electric butterfly valve, its first air intake for exporting connection driving cylinder, piston, hydraulic piston and compression piston is driven to pass through two connecting rod connections, compression piston can move in compression cylinder, and fuel tank passes through oil pump and the entrance for unloading solenoid and connecting oil cylinder；In use, high-speed photography system will acquire the fire information of energetic material crystal, and records simultaneously by electric-control system, analyzes data when the energetic material crystal being located in visualization chamber system is under pressure and impacts.The utility model structure is simple, easy to operate, can accurately record the process of energetic material crystal auto-ignition.
Description
Technical field
The utility model relates to a kind of experimental systems of energetic material crystal auto-ignition under observation Impulsive load, for containing energy
The time of material crystals auto-ignition measures and the acquisition of image information (such as burning velocity, communication process).
Background technique
As new and high technology is widely applied in war, effect of the ballistic weapon in war is more and more important, this will
Ask propellant that can increase substantially energy；But with the energetic of propellant, the safety of ballistic weapon is declined, because
This needs to develop insensitiveness, safe and reliable propellant, to prevent propellant spontaneous combustion or ignition caused by extraneous mal-condition.
The parameter of burn rate, presser sensor degree etc. will be carried out to it before novel propellant is succeeded in developing and come into operation
Research.At this moment with regard to needing to carry out test experiments to a small amount of propellant i.e. energetic material crystal.
At present it is most of obtain ignition delay time data methods be by acquisition combustion process in pressure signal or
Person's OH luminous signal.The generation and concrete condition of kindling can not be directly judged by the video or picture of observable.For
The measurement of burning velocity is typically based on the high speed photography under constant volume combustion bomb or normal pressure, can not obtain in temporary impact
Burning velocity information under load.
Utility model content
The purpose of this utility model is that being directed to the limitation of the prior art, provides and contain energy under a kind of observation Impulsive load
The experimental system of material crystals auto-ignition.The system is safe, simple and fast, good economy performance and precision are high, use scope is wide.
What the utility model adopts the following technical solution to realize:
The experimental system of energetic material crystal auto-ignition under a kind of observation Impulsive load, including drive system, hydraulic system,
Electric-control system, visualization chamber system and high-speed photography system；Wherein,
Drive system includes high pressure tank, metal hose, electric butterfly valve, connecting rod and driving cylinder；
Hydraulic system includes oil cylinder, fuel tank and compression cylinder；
Electric-control system includes control and acquisition system；
The outlet of high pressure tank passes through the entrance of connection by metal hose electric butterfly valve, and the outlet of electric butterfly valve connects driving
The driving piston of first air intake of cylinder, driving cylinder is connected by hydraulic piston one end of connecting rod and oil cylinder, and hydraulic piston is another
One end and compression piston one end of compression cylinder are connected by connecting rod, and compression piston can move to the other end from one end of compression cylinder
Realize the compression to air, fuel tank passes through oil pump respectively and unloads two hydraulic oil entrances that solenoid is connected to oil cylinder；
In use, energetic material crystal and pressure sensor setting are visualizing in chamber system, when energetic material crystalline substance
Body is under pressure when impacting, and high-speed photography system is used to acquire the burning image for visualizing energetic material crystal in chamber system
Information, and data are recorded with acquisition system by control simultaneously, and the data of record are analyzed and processed to obtain ignition lag
Time, burning velocity.
The utility model, which further improves, to be, the volume of high pressure tank is 0.2mm3, the driving of 10MPa can be born
Pressure.
The utility model, which further improves, to be, drive system further includes air compressor, and outlet is divided into two-way company
It is connected to the entrance of high pressure tank, another way is connected to the second air intake of driving cylinder.
The utility model, which further improves, to be, is provided with manual ball on the two-way pipeline of air compressor outlet
Valve.
The utility model, which further improves, to be, visualization chamber system includes having hollow cavity and both ends open
Visualization combustion chamber, energetic material crystal and pressure sensor be respectively provided in visualization combustion chamber, visualizes combustion chamber openings
Both ends by form end cap seal, and the center of each form end cap is inlaid with quartzy form.
The utility model, which further improves, to be, is provided with sealing ring between quartzy form and corresponding form end cap.
The utility model, which further improves, to be, energetic material crystal is clamped in visualization combustion chamber by rotation electrode
Center at.
The utility model, which further improves, to be, high-speed photography system include light source, high-speed camera, the first lens,
First reflecting mirror, the second reflecting mirror and the second lens；When working condition, the light that light source generates can pass through the first lens and the
After one reflecting mirror, light is injected in visualization combustion chamber by a quartzy form and illuminates energetic material crystal, light is from another
It comes out in one quartzy form and is absorbed with the second lens by high-speed camera by the second reflecting mirror, form image.
The utility model has following beneficial technical effect:
The utility model utilizes fast compressor and high speed photography, proposes and contains energy under a kind of observation Impulsive load
The experimental system of material crystals auto-ignition.Specifically, instantaneous compression shock is provided using fast compressor device to load,
The load of 0.1MPa-50MPa pressure can be achieved, it is applied widely.Using the gasket of adjustable thickness, the essence of compression ratio can be realized
Quasi- control.Visualization is provided with silica glass window on combustion chamber, realizes the real-time dynamic monitoring to the burning of energetic material crystal
With record.And the pressure signal obtained with pressure sensor is contrasted, and improves the reliability and accuracy of data.Electric rotating
Pole upper and lower position has adjustability, can clamp the energetic material crystal that diameter is 1-20mm.
In conclusion the utility model is to use high-speed camera synchronous recording energetic material crystal in fast compressor
Auto-ignition when being impacted by instantaneous pressure.The ignition delay time of the available energetic material of the utility model, and combustion
Burn speed uniform velocity.
Detailed description of the invention
Fig. 1 is that the structure of the experimental system of energetic material crystal auto-ignition under a kind of observation Impulsive load of the utility model is shown
It is intended to；
Fig. 2 is the structural schematic diagram that the utility model visualizes chamber system.
Label declaration:
1- fuel tank, 2- compression cylinder, 3- visualize chamber system, 4- light source, 5- high-speed camera, the first lens of 6-, 7-
Control and acquisition system, 8- oil cylinder, 9- connecting rod, 10- driving cylinder, 11- metal hose, 12- high pressure tank, the compression of 13- air
Machine, 14- manual ball valve, 15- electric butterfly valve, 16- visualization combustion chamber, 17- bolt hole, 18- rotation electrode, 19- fixing bolt,
20- energetic material crystal, 21- quartz form, 22- sealing ring, 23- form end cap, the first reflecting mirror of 24-, 25- second reflect
Mirror, the second lens of 26-.
Specific embodiment
In order to more clearly understand the utility model, the utility model is described in detail below in conjunction with attached drawing.
It as depicted in figs. 1 and 2, is energetic material crystal auto-ignition under a kind of observation Impulsive load provided by the utility model
Experimental system and visualization chamber structure figure, including fuel tank 1, compression cylinder 2, visualize chamber system 3, light source 4 is high
Fast video camera 5, the first lens 6, control and acquisition system 7, oil cylinder 8, connecting rod 9, driving cylinder 10, metal hose 11, high-pressure gas
Tank 12, air compressor 13, Hand-operated butterfly valve 14, electric butterfly valve 15, visualization combustion chamber 16, bolt hole 17, rotation electrode 18, Gu
Determine bolt 19, energetic material crystal 20, quartzy form 21, sealing ring 22, form end cap 23, the first reflecting mirror 24, the second reflection
Mirror 25 and the second lens 26.
Wherein the volume of high pressure tank 12 is 0.2mm3, the driving pressure of 10MPa can be born, is that instantaneous herk is biggish
Compression shock provides possibility.Hydraulic cylinder can be established by oil supply system (including fuel tank 1, oil pump pass in and out oil pipe)
The oil pressure of 10MPa plays before generating instantaneous pressure impact and withstands the gas pressure from driving cylinder 10.Compression piston is located at
In compression cylinder 2, stroke 332mm, visualization combustion chamber 16 can by dress shimming (length 10mm, 20mm, 30mm,
40mm) change compression ratio, in addition can also realize subtle control by dress shimming with a thickness of 1,2,5mm length.The experiment
After system generates instantaneous pressure impact by compression cylinder 2, reaches the visualization equipped with Kistler 6125C type pressure sensor and fire
Burn room 16.When energetic material crystal 20, which is under pressure, to be impacted, pressure sensor and high-speed photography system can record number simultaneously
According to.The data of record can be analyzed and processed to obtain the letter such as ignition delay time, burning velocity with acquisition system 7 by control
Breath.
Reciprocating movement of the driving piston in driving cylinder can be realized by being designed with Hand-operated butterfly valve in 10 two sides of driving cylinder.Described
Hydraulic system includes oil cylinder, fuel tank, oil pump, disengaging oil pipe.The braking that system is realized using hydraulic oil, reduces hitting for mechanical braking
That hits and work is unstable.Multiple oil leak holes are taken by opening on hydraulic piston, realize ideal moderating process.The electricity
Control system includes control and acquisition system, controls draining solenoid valve in hydraulic system, pressure sensor and high speed simultaneously and takes the photograph
Camera.It can be realized multichannel accurately to control.The chamber system includes quartzy form, and rotation electrode is by rotation to not
Energetic material crystal with size is clamped.Chamber length can be changed by the gasket of different-thickness, thus to control
Compression ratio processed.The high-speed photography system includes light source, lens, reflecting mirror and high-speed camera.Using schlieren method to containing
Energy material crystals carry out the acquisition of real-time physical image.
In order to be further appreciated that the utility model, now its course of work is made as described below:
Firstly, it is necessary to certain gas is filled with into high pressure tank 12 as driving source by air compressor 13, and
Pressure substantially constant, high pressure tank 12 in driving Piston Process is kept directly to be connected with driving cylinder 10, centre is equipped with electronic
Butterfly valve 15 is used to obstruct high pressure gas.Then, sufficiently large oil pressure is provided to it using oil supply system in oil cylinder 8, for pushing up
The firmly driving pressure of right side high pressure tank 12, at this time at the electric butterfly valve 15 between high pressure tank 12 and driving cylinder 10
In opening state.High pressure gas in this way in high pressure tank 12 will directly with the driving piston contact in driving cylinder 10, guarantee
Compression drives piston that can smoothly push ahead under the driving of high pressure gas after starting.Gas-powered process is substantially complete at this time
At.Then, energetic material crystal 20 is clamped in by rotation electrode 18 by being rotated up and down the distance between adjustment electrode in Fig. 2
Quartzy 21 center of form.It is using fixing bolt 19 that quartzy form 21 and visualization combustion chamber 16 is fixed.Open light source
4, the light that light source 4 generates is injected light visually by a quartzy form 21 by the first lens 6 and the first reflecting mirror 24
Change in combustion chamber 16 and illuminate energetic material crystal 20, light come out from another quartzy form 21 by the second reflecting mirror 25 with
Second lens 26 are absorbed by high-speed camera 5, form image.Final control will control in hydraulic system simultaneously with acquisition system 7
Draining solenoid valve, pressure sensor and high-speed camera 5.It is opened by computer-controlled electromagnetic valve, is built in oil cylinder 8 at this time
The high pressure oil of coming is erected, is flowed back in fuel tank 1 by oil return pipe, the oil pressure in oil cylinder 8 declines rapidly, the high pressure gas in driving cylinder 10
The driving force that body generates can be higher than the power for the prevention piston motion that hydraulic oil in oil cylinder 8 generates.Therefore driving piston can be in high pressure
Advance rapidly under the driving of gas, realizes and 20 instantaneous pressure of energetic material crystal in visualization combustion chamber 16 is impacted, with this
The pressure sensor and high-speed camera 5 being mounted on visualization combustion chamber 16 simultaneously are synchronous to carry out pressure data and image
The acquisition of information.After the kindling of energetic material crystal 20, driving piston is in the front end of driving cylinder 10, needs to close drive at this time
Electric butterfly valve 15 between dynamic cylinder 10 and high pressure tank 12 opens high pressure gas and driving piston barrier.Open driving cylinder 10
With the Hand-operated butterfly valve between high-pressure gas cylinder 12, the high pressure gas for remaining in driving cylinder 10 is discharged.Then it is compressed using air
The Hand-operated butterfly valve of 10 two sides of machine 13 and driving cylinder will drive piston to push back the end of driving cylinder 10 i.e. close to high pressure tank 12
One end.So far, whole process terminates.
In conclusion the utility model is pressing energetic material crystal using high speed photography and rapid compression machine
Auto-ignition phenomenon carries out microcosmic and macroscopical observation under power Impulsive load, extracts the ignition delay time of energetic material, burns
The important informations such as speed.Meanwhile the utility model experimental provision is safe and simple, easily operated, experimental precision is high.
Claims (8)
1. it is a kind of observation Impulsive load under energetic material crystal auto-ignition experimental system, which is characterized in that including drive system,
Hydraulic system, electric-control system, visualization chamber system (3) and high-speed photography system；Wherein,
Drive system includes high pressure tank (12), metal hose (11), electric butterfly valve (15), connecting rod (9) and driving cylinder
(10)；
Hydraulic system includes oil cylinder (8), fuel tank (1) and compression cylinder (2)；
Electric-control system includes control and acquisition system (7)；
The outlet of high pressure tank (12) connects the entrance of electric butterfly valve (15) by metal hose (11), electric butterfly valve (15)
First air intake of outlet connection driving cylinder (10), the driving piston of driving cylinder (10) pass through the liquid of connecting rod (9) and oil cylinder (8)
The connection of piston one end is pressed, the hydraulic piston other end is connect with compression piston one end of compression cylinder (2) by connecting rod, and compression piston can
The other end is moved to from one end of compression cylinder (2) to realize the compression to air, and fuel tank (1) by oil pump and unloads electromagnetic oil respectively
Valve is connected to two hydraulic oil entrances of oil cylinder (8)；
In use, energetic material crystal (20) and pressure sensor setting work as energetic material in visualization chamber system (3)
Crystal (20) is under pressure when impacting, and high-speed photography system is for acquiring energetic material crystal in visualization chamber system (3)
(20) burning image information, and data are recorded simultaneously with acquisition system (7) by control, and the data of record are analyzed
Processing obtains ignition delay time, burning velocity.
2. the experimental system of energetic material crystal auto-ignition, special under a kind of observation Impulsive load according to claim 1
Sign is that the volume of high pressure tank (12) is 0.2mm3, the driving pressure of 10MPa can be born.
3. the experimental system of energetic material crystal auto-ignition, special under a kind of observation Impulsive load according to claim 1
Sign is that drive system further includes air compressor (13), and outlet is divided into the entrance that two-way is connected to high pressure tank (12),
Another way is connected to the second air intake of driving cylinder (10).
4. the experimental system of energetic material crystal auto-ignition, special under a kind of observation Impulsive load according to claim 3
Sign is, is provided with manual ball valve (14) on the two-way pipeline of air compressor (13) outlet.
5. the experimental system of energetic material crystal auto-ignition, special under a kind of observation Impulsive load according to claim 1
Sign is that visualization chamber system (3) includes the visualization combustion chamber (16) with hollow cavity and both ends open, the material containing energy
Material crystal (20) and pressure sensor are respectively provided in visualization combustion chamber (16), and the both ends of visualization combustion chamber (16) opening pass through
Form end cap (23) sealing, and the center of each form end cap (23) is inlaid with quartzy form (21).
6. the experimental system of energetic material crystal auto-ignition, special under a kind of observation Impulsive load according to claim 5
Sign is, is provided with sealing ring (22) between quartzy form (21) and corresponding form end cap (23).
7. the experimental system of energetic material crystal auto-ignition, special under a kind of observation Impulsive load according to claim 5
Sign is that energetic material crystal (20) is clamped at the center of visualization combustion chamber (16) by rotation electrode (18).
8. the experimental system of energetic material crystal auto-ignition, special under a kind of observation Impulsive load according to claim 5
Sign is that high-speed photography system includes light source (4), high-speed camera (5), the first lens (6), the first reflecting mirror (24), second
Reflecting mirror (25) and the second lens (26)；When working condition, the light that light source (4) generates can pass through the first lens (6) and the
After one reflecting mirror (24), light is injected in visualization combustion chamber (16) by a quartzy form (21) and illuminates energetic material crystalline substance
Body (20), light come out from another quartzy form (21) and are taken the photograph at a high speed by the second reflecting mirror (25) with the second lens (26)
Camera (5) absorbs, and forms image.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820961929.4U CN208420819U (en) | 2018-06-21 | 2018-06-21 | The experimental system of energetic material crystal auto-ignition under a kind of observation Impulsive load |
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| CN201820961929.4U CN208420819U (en) | 2018-06-21 | 2018-06-21 | The experimental system of energetic material crystal auto-ignition under a kind of observation Impulsive load |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680700A (en) * | 2018-06-21 | 2018-10-19 | 西安交通大学 | The experimental system of energetic material crystal auto-ignition under a kind of observation Impulsive load |
| 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 |
| CN110231363A (en) * | 2019-05-23 | 2019-09-13 | 西安交通大学 | A method of research energetic material reaction mechanism and safety evaluation |
-
2018
- 2018-06-21 CN CN201820961929.4U patent/CN208420819U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680700A (en) * | 2018-06-21 | 2018-10-19 | 西安交通大学 | The experimental system of energetic material crystal auto-ignition under a kind of observation Impulsive load |
| CN108680700B (en) * | 2018-06-21 | 2023-12-19 | 西安交通大学 | Experimental system for observing self-ignition of energetic material crystal under impact loading |
| CN110231363A (en) * | 2019-05-23 | 2019-09-13 | 西安交通大学 | A method of research energetic material reaction mechanism and safety evaluation |
| 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 |
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