CN103513002B - Device for ignition and combustion of primary boron product with high energy density laser - Google Patents
Device for ignition and combustion of primary boron product with high energy density laser Download PDFInfo
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- CN103513002B CN103513002B CN201310419854.9A CN201310419854A CN103513002B CN 103513002 B CN103513002 B CN 103513002B CN 201310419854 A CN201310419854 A CN 201310419854A CN 103513002 B CN103513002 B CN 103513002B
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- combustion
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- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910052796 boron Inorganic materials 0.000 title claims abstract description 38
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 9
- 238000003745 diagnosis Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 229910052810 boron oxide Inorganic materials 0.000 abstract description 5
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 abstract description 5
- 238000009835 boiling Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000004093 laser heating Methods 0.000 abstract description 2
- 238000005485 electric heating Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 11
- 238000002474 experimental method Methods 0.000 description 4
- 239000003380 propellant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to an ignition and combustion testing device, and aims to provide a device for ignition and combustion of a primary boron product with high energy density laser. The device comprises an ignition module, an atmosphere control module, a combustion diagnostic module, and a data recording module, wherein the ignition module comprises a high energy density laser device and a transparent ignition combustion tube, a laser tube is fixed on a base via a laser tube support frame, the transparent ignition combustion tube is arranged on an iron stand, and a sample bracket is arranged in the center of the transparent ignition combustion tube. The device provided by the invention can rapidly heat a primary boron product sample to a temperature above the boiling point of boron oxide in several milliseconds, which is far better than the conventional electric heating ignition manner, and can realize rapid ignition and complete combustion of the primary boron product. The laser device has low electric power, and can be used after being supplied with 220V family electricity, resulting in good generality. The laser heating range is centralized, and the energy utilization efficiency is high.
Description
Technical field
The present invention relates to a kind of ignition test unit, the device of particularly boron product ignition.
Background technology
Boron has high quality calorific value and volume calorific value, consisting of propellant specific impulse products of combustion good dispersion, also can significantly reduce nozzle throat two-phase flow loss, be considered to the filler of a kind of high-quality in propellant.Boron-based fuel-rich is in once burning process, due to environment oxygen deprivation, temperature is lower, can not fully ignition, primary combustion product containing a large amount of boron particles enters afterburning chamber from gas generation chamber, carry out blending with air and complete burning, and discharge large calorimetric, the superior energy of boron-based fuel-rich mainly carries out in afterburning chamber that secondary combustion gives full play of.So the ignition of a research boron product, ensure its smooth ignition burning in afterburning chamber, realize efficient burning and high-energy release, extremely important to the integral combustion of Boron-Based Fuel-Rich Propellant.
Because a large amount of boron particles surfaces comprised in a boron product are wrapped in one deck boron oxide shell, its boils up till 2320K, be difficult in the lab reach rapidly the igniting that high temperature like this realizes a boron product, seriously constrain the experimental study of a boron product ignition characteristic.Therefore how to realize quick, a sufficient ignition and combustion of boron product and seem particularly important.An existing boron product portfire is difficult to realize this goal.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the deficiencies in the prior art, provides a kind of high energy density laser to realize the device of boron product ignition.
For technical solution problem, solution of the present invention is:
Thering is provided a kind of high energy density laser to realize the device of boron product ignition, comprising the sample holder for placing boron product; This device is made up of ignition module, atmosphere adjustment module, combustion diagnosis module and data recordin module, and wherein, ignition module comprises high energy density laser and transparent igniting flame tube; High energy density laser has the laser tube of a hollow tubular, and its hollow part is the laser via being filled with inert protective gas, is provided with cooling water pipeline in the wall of laser tube tubular structure; Laser tube is fixed on base by laser tube bracing frame, and protecting sheathing is connected to base and by laser tube cover in the inner; Laser tube emissions end is positioned at the side of laser tube, and relevant position is provided with the through hole by laser on protecting sheathing; Transparent igniting flame tube is placed on iron stand, and described sample holder is located at transparent igniting flame tube center, and sample holder and laser tube emissions end are oppositely arranged, and tube wall is between arranged the through hole be used for by laser;
Described atmosphere adjustment module comprises the gas cabinet, electronic flow controller and the flowrate control valve that are connected successively by pipeline; Flowrate control valve is connected by pipeline one end with transparent igniting flame tube, and the other end of transparent igniting flame tube is uncovered shape;
Described combustion diagnosis module comprises high-speed camera, fiber spectrometer, thermal infrared imager and physics EmS; Described data recordin module comprises computing machine, and computing machine is connected to laser tube, high-speed camera, fiber spectrometer, thermal infrared imager, physics EmS and electronic flow controller respectively by signal wire.
In the present invention, the center line of described laser tube and transparent igniting flame tube is in intersecting vertically, and between laser tube and laser tube emissions end, to be provided with one with laser tube center line be the reflective mirror of 45 ° of angles.
In the present invention, have jacket structured in the wall of the tubular structure of described laser tube, this jacket structured i.e. cooling water pipeline.Cooling water system is to control the temperature of laser tube.
Protecting sheathing is resistant to elevated temperatures black shell, for the infringement preventing the laser offset caused due to laser failure from causing device and experimenter.Gas flow control valve, can carry out gas flow and control and gas switching.The circuit of laser instrument, high-speed camera, thermal infrared imager, light spectral instrument synchronously trigger by computing machine or physical switch or stop.Laser power carries out fine adjustment by computing machine, and can realize the linear change of laser power in experimentation.
Relative to prior art, beneficial effect of the present invention is:
1. can heat rapidly a boron Product samples, make sample in several millisecond rapid temperature increases to 2320K(boron oxide boiling point) more than, be much better than traditional electrical thermal ignition mode, rapid-ignition and the Thorough combustion of a boron product can be realized.
2. laser instrument electric power low (generally only a few hectowatt), access 220V household electricity can use, and versatility is good.In LASER HEATING range set, energy utilization efficiency is high, and it is few to test a required boron Product samples amount.
3. control fine adjustment laser power by computing machine, and the linear change of laser power can be realized in experimentation, for experimenter provides abundanter ignition schemes.
4. a boron Product samples ignition in the duct, steady air current, be not subject to extraneous factor interference, and pipeline adopts transparent material, can realize the accessible observation of high-speed camera, thermal infrared imager, light spectral instrument.
5. control by computing machine, kind is easily carried out to an ambiance during boron Product samples burning and switches and flow control.
6. can carry out Real-time Collection and survey record to the reaction process of boron Product samples ignition, surface temperature, emission spectrum, be the experimental basis that the analysis of a boron product ignition characteristic provides multi-angle.
7. achieve igniting and the synchronous triggering of observation assembly, ensure the completeness and efficiency that observation data gathers.
8. achieve that laser power is arranged, experiment atmosphere is arranged, igniting and observation assembly start and stop, experimental data collection and record computer integrated control, for experimental implementation provides great convenience.
9. this device is laser configurations protecting sheathing, the injury that the laser offset that can prevent equipment failure from causing may cause experimenter and device.In addition, being also provided with physics EmS, can cutting off rapidly installation's power source when causing danger.Device entirety has higher security.
Accompanying drawing explanation
Fig. 1 is the installation drawing realizing the ignition of a boron product by high energy density laser.
Fig. 2 is high energy density laser assembly assumption diagram;
Fig. 3 is the vertical view of product in Fig. 1;
Fig. 4 is transparent igniting combustion pipe assembly assumption diagram.
In figure, each Reference numeral is: 1 cooling water pipeline; 2 laser vias; 3 laser tubes; 4 laser tube bracing frames; 5 Laser emission ends; 6 bases; 7 protecting sheathings; 8 gas cabinets; 9 electronic flow controller; 10 flowrate control valves; 11 transparent igniting flame tubes; 12 sample holders; 13 iron stands; 14 computing machines; 15 high energy density lasers; 16 transparent igniting combustion pipes; 17 high-speed cameras; 18 fiber spectrometers; 19 thermal infrared imagers; 20 physics EmSes.
Embodiment
The present invention utilizes high energy density laser to heat a boron Product samples in transparent igniting combustion pipe, make sample rapid temperature increases, realize rapid-ignition and Thorough combustion, observe by the ignition combustion event of multiple instrument and equipment to sample, measure and analyze, and computer integrated control is carried out to significant components each in device.
Below in conjunction with accompanying drawing and example, patent of the present invention is further illustrated.
As shown in Figure 1, the device realizing the ignition of a boron product by high energy density laser is made up of ignition module, atmosphere adjustment module, combustion diagnosis module and data recordin module, wherein, ignition module comprises high energy density laser 15 and transparent igniting flame tube 11; High energy density laser 15 has the laser tube 3 of a hollow tubular, and its hollow part is laser via, is filled with inert protective gas in path.2, have jacket structured in the wall of laser tube 3 tubular structure, this jacket structured i.e. cooling water pipeline 1.Laser tube 3 is fixed on base 6 by laser tube bracing frame 4, and protecting sheathing 7 is connected to base 6 and covers in the inner by laser tube 3; Laser tube emissions end 5 is positioned at the side of laser tube 3, and relevant position is provided with the through hole by laser on protecting sheathing 7; Transparent igniting flame tube 11 is placed on iron stand 13, and sample holder 12 is located in transparent igniting flame tube 11, and sample holder 12 and laser tube emissions end 5 are oppositely arranged, and tube wall between arranges the through hole be used for by laser; The center line of laser tube 3 and transparent igniting flame tube 11 is in intersecting vertically, and between laser tube 3 and laser tube emissions end 5, to be provided with one with laser tube 3 center line be the reflective mirror of 45 ° of angles.
Described atmosphere adjustment module comprises the gas cabinet 8, electronic flow controller 9 and the flowrate control valve 10 that are connected successively by pipeline; Flowrate control valve 10 is connected by pipeline one end with transparent igniting flame tube 11, and the other end of transparent igniting flame tube 11 is uncovered shape;
Described combustion diagnosis module comprises high-speed camera 17, fiber spectrometer 18, thermal infrared imager 19 and physics EmS 20; Described data recordin module comprises computing machine 14, and computing machine 14 is connected to laser tube 3, high-speed camera 17, fiber spectrometer 18, thermal infrared imager 19, physics EmS 20 and electronic flow controller 9 respectively by signal wire.
The present invention adopts high energy density laser to light a fire, laser power generally only a few hectowatt, far below traditional sparking mode, can use in access 220V household electricity.In the present invention, high-energy-density refers to be enough at short notice (referring generally within 1 second) by boron product heats to the boiling point of 2320K(boron oxide) more than energy density; Accordingly, high energy density laser refer to can by boron product heats to the boiling point of 2320K(boron oxide) more than laser instrument.Due to the laser temperature higher (more than 2320K) that laser instrument produces, need for laser configurations cooling water system, as shown in Figure 2.
Sample ignition in transparent igniting combustion pipe 16 in the present invention, as shown in Figure 4, circular tube structure makes uniform stream stablize, and is not subject to external interference.And pipeline adopts transparent material, be convenient to equipment observation.
As shown in Figure 1, after device connects, laser power supply, flow control signal, high-speed camera signal, fiber spectrometer signal, thermal infrared imager signal access computing machine all in parallel, realizes computer integrated control.
First a boron Product samples is filled into sample holder 12 during experiment, rear unlatching cooling water pipeline 1, makes chilled water be full of whole pipeline.The gas cylinder in gas cabinet 8 should be opened before experiment in advance, and set gaseous species and the flow of expectation in control software design in computing machine 14.After the steady air current in transparent igniting flame tube 11, connect circuit by the sequence check switch in computing machine 14, laser will penetrate from laser tube emissions end 4, light a boron Product samples on sample holder 11.
During experiment, high-speed camera 17, fiber spectrometer 18 and thermal infrared imager 19 are controlled by computing machine 14, synchronously with high energy density laser 15 triggers.In ignition combustion event, high-speed camera 17, fiber spectrometer 18 and thermal infrared imager 19 can carry out Real-Time Monitoring to sample, and are shown to computing machine by data transfer, and experimenter is by the situation of computing machine Real Time Observation to sample ignition.Embedded data logging program in computing machine 14, experimenter can utilize this program to observe the data obtained preserve and subsequent analysis to high-speed camera 17, fiber spectrometer 18 and thermal infrared imager 19.
When in case of emergency, experimenter can by the power supply of the urgent 20 switch cutoff laser instruments 3 of physics.
Claims (2)
1. realizing the device of boron product ignition by high energy density laser, comprising the sample holder for placing boron product; It is characterized in that, this device is made up of ignition module, atmosphere adjustment module, combustion diagnosis module and data recordin module, wherein,
Ignition module comprises high energy density laser and transparent igniting flame tube; High energy density laser has the laser tube of a hollow tubular, and its hollow part is the laser via being filled with inert protective gas, is provided with cooling water pipeline in the wall of laser tube tubular structure; Laser tube is fixed on base by laser tube bracing frame, and protecting sheathing is connected to base and by laser tube cover in the inner; Laser tube emissions end is positioned at the side of laser tube, and relevant position is provided with the through hole by laser on protecting sheathing; Transparent igniting flame tube is placed on iron stand, and described sample holder is located at transparent igniting flame tube center, and sample holder and laser tube emissions end are oppositely arranged, and tube wall is between arranged the through hole be used for by laser;
Described atmosphere adjustment module comprises the gas cabinet, electronic flow controller and the flowrate control valve that are connected successively by pipeline; Flowrate control valve is connected by pipeline one end with transparent igniting flame tube, and the other end of transparent igniting flame tube is uncovered shape;
Described combustion diagnosis module comprises high-speed camera, fiber spectrometer, thermal infrared imager and physics EmS; Described data recordin module comprises computing machine, and computing machine is connected to laser tube, high-speed camera, fiber spectrometer, thermal infrared imager, physics EmS and electronic flow controller respectively by signal wire;
The center line of described laser tube and transparent igniting flame tube is in intersecting vertically, and between laser tube and laser tube emissions end, to be provided with one with laser tube center line be the reflective mirror of 45 ° of angles;
Described high energy density laser refers to and by boron product heats to the laser instrument of more than 2320K, and can carry out fine adjustment to realize linear change by computing machine to its power; Described high-energy-density refer to can within 1 second by boron product heats to the energy density of more than 2320K.
2. device according to claim 1, is characterized in that, has jacket structured in the wall of the tubular structure of described laser tube, this jacket structured i.e. cooling water pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310419854.9A CN103513002B (en) | 2013-09-15 | 2013-09-15 | Device for ignition and combustion of primary boron product with high energy density laser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310419854.9A CN103513002B (en) | 2013-09-15 | 2013-09-15 | Device for ignition and combustion of primary boron product with high energy density laser |
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| CN103513002A CN103513002A (en) | 2014-01-15 |
| CN103513002B true CN103513002B (en) | 2015-06-10 |
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| CN201310419854.9A Expired - Fee Related CN103513002B (en) | 2013-09-15 | 2013-09-15 | Device for ignition and combustion of primary boron product with high energy density laser |
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| CN104330519B (en) * | 2014-10-30 | 2016-05-18 | 西北工业大学 | A kind of particle pneumatic floating laser ignition experimental provision |
| CN104596768B (en) * | 2015-01-13 | 2017-04-12 | 浙江大学 | Device for testing ignition combustion characteristics and propulsive performance of solid fuel micro-thruster |
| CN110454685B (en) * | 2019-08-28 | 2021-03-02 | 河南理工大学 | Infrared test system for temperature of explosion flame of premixed gas in pipeline |
| CN112443858B (en) * | 2020-11-02 | 2022-11-04 | 南京理工大学 | Distributed light ignition method and device for boron |
| CN113567611B (en) * | 2021-07-19 | 2023-05-09 | 中自环保科技股份有限公司 | Evaluation device and evaluation method for LNT catalyst |
| CN114544704B (en) * | 2022-02-24 | 2023-09-19 | 中国工程物理研究院化工材料研究所 | Mesoscale high-heat flux irradiation ignition test system and method |
| CN114687890B (en) * | 2022-04-26 | 2023-10-27 | 常州大学 | High-efficient laser ignition solid fuel burner |
| CN114705803B (en) * | 2022-05-13 | 2023-08-22 | 常州大学 | Experimental device capable of safely and continuously igniting and burning |
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| CN103513002A (en) | 2014-01-15 |
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