CN106848810A - A kind of High Mach number low temperature array jet pipe for HF/DF chemical lasers - Google Patents
A kind of High Mach number low temperature array jet pipe for HF/DF chemical lasers Download PDFInfo
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- CN106848810A CN106848810A CN201510881949.1A CN201510881949A CN106848810A CN 106848810 A CN106848810 A CN 106848810A CN 201510881949 A CN201510881949 A CN 201510881949A CN 106848810 A CN106848810 A CN 106848810A
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- jet pipe
- spray orifice
- helium
- combustion chamber
- low temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Nozzles (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The present invention relates to a kind of High Mach number low temperature array jet pipe for HF/DF chemical lasers.The jet pipe module units that array jet pipe is be arranged in parallel by two or more is constituted, and nozzle unit is formed between two jet pipe module units, and nozzle unit is typical two dimension slit Rafael nozzle；Row's hydrogen spray orifice is respectively provided with two lateral jet pipe module units walls of nozzle unit export expansion section end, the main helium spray orifice of a row is respectively provided with export expansion two lateral jet pipe module units walls of section between hydrogen spray orifice and venturi, each a row combustion chamber helium spray orifice is provided with the lateral jet pipe module units wall of nozzle unit arrival end two.The present invention uses horse low temperature jet pipe design concept high, maintains the efficient fluorine atom of horse low temperature jet pipe high and freezes efficiency, and the combustion chamber helium for introducing Russian new jet pipe adds strategy, substantially increases the thermal dissociation efficiency of combustion chamber.
Description
Technical field
The invention belongs to HF/DF chemical laser Nozzle Designs field, for the Nozzle Design of HF/DF chemical lasers.
Background technology
HF/DF chemical lasers are one of current most successful two big chemical lasers.The stimulated radiation of HF/DF chemical lasers occurs
HF/DF molecules shake-turn in excitation state, and the burning of main flow drives HF/DF chemical lasers to produce F atom using combustion method pyrolysis,
The F atom of generation through supersonic nozzle lower the temperature and accelerate after with H2/D2The HF/DF molecules of reaction generation vibration excited state are simultaneously turning
Population inversion is produced in kinetic energy level.The appropriate coupling output hysteroscope of selection, you can realize that HF/DF laser is exported.
The critical component of HF/DF chemical lasers is supersonic nozzle.In the development course of more than 40 years, with HF/DFization
Continuing to develop for laser spray bar technology is learned, the power of HF/DF chemical lasers is improved constantly.Although HF/DF chemical lasers
Light power has reached MW grades, but its volume efficiency (light power in jet pipe unit volume), (jet pipe goes out energy-flux density
The light power of mouthful unit area) and specific power (light power of unit weight of material) still have greatly improved sky in theory
Between, the design of new jet pipe is to realize improved efficiency most direct and maximally effective approach.HF/DF chemical laser jet pipes experienced Asia
The development course of velocity of sound, supersonic speed and hypersonic speed, in early days using subsonic effuser, the Typical Representative of supersonic nozzle be 2SLOT,
3SLOT, TRIP, RAMP, DEFLECTOR and three dimensional symmetry jet pipe, the Typical Representative of hypersonic nozzle is HYWN and HYLTE
Jet pipe, the amplification strategy of most of jet pipe is as follows in above-mentioned jet pipe：Main jet Guan Weidan slit jet pipes, plus H2 positions are in single narrow
Two edges outside of the main nozzle exit along dimension (i.e. horn mouth) is stitched, whole jet pipe is by a series of single slit main jet pipe
Unit composition arranged in parallel.
The newest jet pipe of Russia employs a kind of new blocking splitting scheme, and its basic thought is also based on single slit jet pipe
Concept, simply does slicing treatment to single slit jet pipe along the converging diverging plane of jet pipe, carries out blocking segmentation, is cut at two
H2 ejector fillers are added between blade unit.
This blocking splitting scheme can realize still there is larger nozzle throat highly under High Mach number, while obtaining very little
The penetration length that H2 air-flows inject to main jet pipe, mixing efficiency is higher.But the H2 injecting strategies of Russian new jet pipe are still adopted
It is the oblique feed postition of free jet, this feed postition has a high mixing efficiency, but main jet pipe can be caused very big dynamic
The loss of energy, causes cavity pressure higher, and temperature is higher, is unfavorable for the lifting of light extraction medium gain and combustion chamber operational pressure.Russia
The newest jet pipe of Ross another key technology is that, in venturi entrance plus combustion chamber helium, the benefit of do so is exactly that can guarantee that burning
Fluorine atom in room is in hot environment in the most times before entering nozzle throat, will not be because of the addition of a large amount of cold helium
Cause the serious compound of fluorine atom, both ensure that the function of combustion chamber helium adjustable jet tube aerodynamic parameter, can reduce to greatest extent again
The loss of fluorine atom.
Present invention employs horse low temperature jet pipe design concept high popular both at home and abroad at present, in combination with the combustion of Russian newest jet pipe
Burn room helium and add strategy, design a kind of new jet pipe.This jet pipe maintains the efficient fluorine atom of horse low temperature jet pipe high and freezes effect
Rate, while substantially increase the thermal dissociation efficiency of combustion chamber, what the overall efficiency of laser was expected to is remarkably enhanced.
The content of the invention
The present invention combines horse low temperature jet pipe design concept high and the combustion chamber helium of Russian newest jet pipe adds strategy, one kind of proposition
For the High Mach number low temperature jet pipe of HF/DF chemical lasers, in order to improve HF/DF chemical laser overall efficiencies.
The purpose of the present invention is achieved through the following technical solutions.
A kind of High Mach number low temperature array jet pipe for HF/DF chemical lasers, it is characterised in that：
The jet pipe module units that array jet pipe is be arranged in parallel by two or more is constituted, and jet pipe list is formed between two jet pipe module units
Unit, nozzle unit is typical two dimension slit Rafael nozzle；Nozzle unit entrance face is to laser combustion chamber, jet pipe list
First exit end face is to laser optical cavity；A row is respectively provided with two lateral jet pipe module units walls of nozzle unit export expansion section end
Hydrogen spray orifice, is respectively provided with the main helium spray of a row on the export expansion two lateral jet pipe module units walls of section between hydrogen spray orifice and venturi
Hole, is each provided with a row combustion chamber helium spray orifice, towards laser optical on the lateral jet pipe module units wall of nozzle unit arrival end two
The wall of the jet pipe module units of chamber side is a plane, and plane is used as the pressure release platform between two neighboring nozzle unit, pressure release
Secondary helium spray orifices more than two rows is provided with platform；
Hydrogen paths, main helium passage, secondary helium passage, combustion chamber helium passage, cooling-water duct are provided with inside jet pipe module units；
Hydrogen paths are connected with hydrogen source gas, and hydrogen spray orifice is connected with hydrogen paths；Main helium passage, secondary helium passage, combustion chamber helium lead to
Road is connected with helium source of the gas respectively, and main helium spray orifice is connected with main helium passage, and secondary helium spray orifice is connected with secondary helium passage, combustion chamber
Helium spray orifice is connected with combustion chamber helium passage.
In addition to features described above, also include:
Between 0.15-0.30mm, the molding surface size of its entrance contraction section and export expansion section is by fluid for 1 nozzle unit venturi height
Machine software is calculated, and outlet height is 9.5mm.
Hydrogen spray orifice pitch-row is 5mm on 2 jet pipe module units, and the line of centres of hydrogen spray orifice is parallel with venturi slit；Main helium spray
Hole pitch-row is 5mm, and main helium orifice center line is parallel with venturi slit.
The throat portion of 3 hydrogen spray orifices is circular hole, and diameter 0.3mm, the port of export is circular taper hole, a diameter of 1mm in exit；
The throat portion of main helium spray orifice is circular hole, and diameter 0.3mm, the port of export is circular taper hole, a diameter of 1mm in exit.
4 main helium spray orifices just at the dead astern of hydrogen spray orifice, i.e., are successively main helium along air current flow direction on air current flow direction
Spray orifice, hydrogen spray orifice, main helium spray orifice is away from hydrogen spray orifice 7mm.
5 pressure release berm widths are 10mm.
6 secondary helium spray orifices can be for more than two rows or three rows, secondary helium spray orifice pitch-row be 5mm, and secondary helium orifice center line is narrow with venturi
Seam is parallel；Secondary helium spray orifice is straight hole, and diameter is in the range of 0.2-0.3mm.
7 combustion chamber helium spray orifices are away from venturi 3-5mm；Combustion chamber helium spray orifice pitch-row is 5mm, the line of centres and venturi of combustion chamber helium
Slit is parallel；Combustion chamber helium spray orifice is straight hole, a diameter of 0.5mm.
8 array jet pipes can be integrally integrated processing and fabricating；Can also first make serial jet pipe module units, then assemble
Into.
9 jet pipe module units main bodys are metallic copper, and surface carries out Nickel Plating Treatment.
Beneficial effect：
Present invention contrast prior art has following innovative point：
1. the present invention uses horse low temperature jet pipe design concept high, maintains the efficient fluorine atom of horse low temperature jet pipe high and freezes efficiency,
The combustion chamber helium for introducing Russian new jet pipe adds strategy, substantially increases the thermal dissociation efficiency of combustion chamber.
2. the molding surface size of the horse low temperature jet pipe high that the present invention is designed, its entrance contraction section and export expansion section is soft by hydrodynamics
Part is calculated, and exit Mach number can more reach calculated value compared with traditional horse low temperature jet pipe high, work off one's feeling vent one's spleen
Stream physical parameter (temperature, pressure, fluid linear velocity etc.) distribution is more uniform, and surface layer in border is narrow.
3. compared with traditional jet pipe, optical cavity temperature and pressure is lower, can improve the gain of optical cavity and the operating pressure of combustion chamber,
So as to improve HF/DF chemical lasers volume efficiency, energy-flux density and specific power.
Brief description of the drawings
Fig. 1 jet pipes module units structure chart-pore structure；
Fig. 2 jet pipes module units structure-Way out pore size distribution figure；
Fig. 3 partial enlarged drawings A；
Fig. 4 jet pipes module units structure-Way in pore size distribution figure；
Fig. 5 jet pipes array-assembling figure-nozzle exit end (connecing optical cavity)；
Fig. 6 partial enlarged drawings B；
Fig. 7 jet pipes array-assembling figure-nozzle entry end (connecing combustion chamber)；
Fig. 8 partial enlarged drawings C.
In figure：1 is hydrogen spray orifice；2 is main helium spray orifice；3 is secondary helium spray orifice；4 is combustion chamber helium spray orifice；5 is water-cooling channel；6
It is partial enlargement A；7 is partial enlargement B；8 is nozzle throat；9 is partial enlargement C.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment
Design philosophy of the invention, devises following jet pipe, and jet pipe module units and jet pipe array assembling figure are as follows：
Wherein, the Mach number design load of jet pipe is 5.5；Each nozzle unit is made up of the assembling of two neighboring jet pipe module units,
The molding surface size of venturi height 0.2mm, its entrance contraction section and export expansion section is calculated by hydrodynamics software, and outlet is high
It is 9.5mm to spend；Hydrogen spray orifice pitch-row is 5mm, and the line of centres of hydrogen spray orifice is parallel with venturi slit；The venturi of hydrogen spray orifice
Part is circular hole, and diameter 0.3mm, the port of export is circular taper hole, a diameter of 1mm in exit；Main helium spray orifice is in air current flow side
Upwards just at the dead astern of hydrogen spray orifice, main helium spray orifice is away from hydrogen spray orifice 7mm；Main helium spray orifice pitch-row is 5mm, main helium spray
The hole line of centres is parallel with venturi slit；The throat portion of main helium spray orifice is circular hole, and diameter 0.3mm, the port of export is circular taper hole,
The a diameter of 1mm in exit；Pressure release berm width is 10mm；Secondary helium spray orifice can be two row or multi-row, and secondary helium spray orifice pitch-row is
5mm, secondary helium orifice center line is parallel with venturi slit；Secondary helium spray orifice is straight hole, and diameter is in 0.3mm；Combustion chamber helium spray orifice
Away from venturi 3mm；Combustion chamber helium spray orifice pitch-row is 5mm, and the line of centres of combustion chamber helium is parallel with venturi slit；Combustion chamber helium spray
Hole is straight hole, a diameter of 0.5mm；Cooling-water duct is located in the metallic object of nozzle throat both sides；Jet pipe is overall by nozzle unit
Array is constituted；Jet pipe module units main body is metallic copper, and surface carries out Nickel Plating Treatment.
Claims (10)
1. a kind of High Mach number low temperature array jet pipe for HF/DF chemical lasers, it is characterised in that：
The jet pipe module units that array jet pipe is be arranged in parallel by two or more is constituted, and jet pipe list is formed between two jet pipe module units
Unit, nozzle unit is typical two dimension slit Rafael nozzle；Nozzle unit entrance face is to laser combustion chamber, spray
Pipe unit exit end face is to laser optical cavity；It is each on two lateral jet pipe module units walls of nozzle unit export expansion section end
Row's hydrogen spray orifice is provided with, is respectively opened on the export expansion two lateral jet pipe module units walls of section between hydrogen spray orifice and venturi
There is the main helium spray orifice of a row, a row combustion chamber helium spray is each provided with the lateral jet pipe module units wall of nozzle unit arrival end two
Hole, the wall towards the jet pipe module units of laser optical cavity side is a plane, and plane is used as two neighboring nozzle unit
Between pressure release platform, secondary helium spray orifices more than two rows is provided with pressure release platform；
Hydrogen paths, main helium passage, secondary helium passage, combustion chamber helium passage, cooling-water duct are provided with inside jet pipe module units；
Hydrogen paths are connected with hydrogen source gas, and hydrogen spray orifice is connected with hydrogen paths；Main helium passage, secondary helium passage, combustion chamber
Helium passage is connected with helium source of the gas respectively, and main helium spray orifice is connected with main helium passage, and secondary helium spray orifice is connected with secondary helium passage,
Combustion chamber helium spray orifice is connected with combustion chamber helium passage.
2. the High Mach number low temperature array jet pipe for HF/DF chemical lasers according to claim 1, it is characterised in that：
Between 0.15-0.30mm, the molding surface size of its entrance contraction section and export expansion section is by fluid for nozzle unit venturi height
Machine software is calculated, and outlet height is 9.5mm.
3. the High Mach number low temperature array jet pipe for HF/DF chemical lasers according to claim 1, it is characterised in that：
Hydrogen spray orifice pitch-row is 5mm on jet pipe module units, and the line of centres of hydrogen spray orifice is parallel with venturi slit；
Main helium spray orifice pitch-row is 5mm, and main helium orifice center line is parallel with venturi slit.
4. the High Mach number low temperature array jet pipe for HF/DF chemical lasers according to claim 1 or 3, its feature exists
In：The throat portion of hydrogen spray orifice is circular hole, and diameter 0.3mm, the port of export is circular taper hole, a diameter of 1mm in exit；
The throat portion of main helium spray orifice is circular hole, and diameter 0.3mm, the port of export is circular taper hole, a diameter of 1mm in exit.
5. the High Mach number low temperature array jet pipe for HF/DF chemical lasers according to claim 1 or 3, its feature exists
In：Main helium spray orifice just at the dead astern of hydrogen spray orifice, i.e., is followed successively by air current flow direction along air current flow direction
Main helium spray orifice, hydrogen spray orifice, main helium spray orifice is away from hydrogen spray orifice 7mm.
6. a kind of High Mach number low temperature array jet pipe for HF/DF chemical lasers according to claim 1, its feature exists
In：Pressure release berm width is 10mm.
7. a kind of High Mach number low temperature array jet pipe for HF/DF chemical lasers according to claim 1, its feature exists
In：Secondary helium spray orifice can be for more than two rows or three rows, secondary helium spray orifice pitch-row be 5mm, secondary helium orifice center line and larynx
Road slit is parallel；
Secondary helium spray orifice is straight hole, and diameter is in the range of 0.2-0.3mm.
8. a kind of High Mach number low temperature array jet pipe for HF/DF chemical lasers according to claim 1, its feature exists
In：Combustion chamber helium spray orifice is away from venturi 3-5mm；
Combustion chamber helium spray orifice pitch-row is 5mm, and the line of centres of combustion chamber helium is parallel with venturi slit；
Combustion chamber helium spray orifice is straight hole, a diameter of 0.5mm.
9. the High Mach number low temperature array jet pipe for HF/DF chemical lasers according to claim 1, it is characterised in that：
Array jet pipe can be integrally integrated processing and fabricating；Can also first make serial jet pipe module units, then assemble
Into.
10. the High Mach number low temperature jet pipe for HF/DF chemical lasers according to claim 1, it is characterised in that：Jet pipe
Module units main body is metallic copper, and surface carries out Nickel Plating Treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881949.1A CN106848810B (en) | 2015-12-04 | 2015-12-04 | A kind of High Mach number low temperature array jet pipe for HF/DF chemical laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881949.1A CN106848810B (en) | 2015-12-04 | 2015-12-04 | A kind of High Mach number low temperature array jet pipe for HF/DF chemical laser |
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| Publication Number | Publication Date |
|---|---|
| CN106848810A true CN106848810A (en) | 2017-06-13 |
| CN106848810B CN106848810B (en) | 2019-03-19 |
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| CN201510881949.1A Active CN106848810B (en) | 2015-12-04 | 2015-12-04 | A kind of High Mach number low temperature array jet pipe for HF/DF chemical laser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576036A (en) * | 2020-11-18 | 2022-06-03 | 北京动力机械研究所 | Ramjet and aircraft |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4375687A (en) * | 1980-12-29 | 1983-03-01 | The United States Of America As Represented By The Secretary Of The Army | Hypersonic wedge nozzle for chemical lasers |
| US20040050979A1 (en) * | 2002-09-13 | 2004-03-18 | George Emanuel | Laser nozzle and iodine injection for coil |
| CN103887692A (en) * | 2012-12-21 | 2014-06-25 | 中国科学院大连化学物理研究所 | Concurrent flow ultrasonic oxygen-iodine mixing nozzle |
| CN104868347A (en) * | 2014-02-26 | 2015-08-26 | 中国科学院大连化学物理研究所 | Hypersonic efficient mixing spray pipe |
-
2015
- 2015-12-04 CN CN201510881949.1A patent/CN106848810B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4375687A (en) * | 1980-12-29 | 1983-03-01 | The United States Of America As Represented By The Secretary Of The Army | Hypersonic wedge nozzle for chemical lasers |
| US20040050979A1 (en) * | 2002-09-13 | 2004-03-18 | George Emanuel | Laser nozzle and iodine injection for coil |
| CN103887692A (en) * | 2012-12-21 | 2014-06-25 | 中国科学院大连化学物理研究所 | Concurrent flow ultrasonic oxygen-iodine mixing nozzle |
| CN104868347A (en) * | 2014-02-26 | 2015-08-26 | 中国科学院大连化学物理研究所 | Hypersonic efficient mixing spray pipe |
Non-Patent Citations (3)
| Title |
|---|
| I. A. FEDOROV 等: ""CONTINUOUS CHEMICAL HF LASER WITH A MODIFIED RADIALLY EXPANDING NOZZLE UNIT"", 《JOURNAL OF ENGINEERING PHYSICS AND THERMOPHYSICS》 * |
| I. A. FEDOROV: ""FLOW STRUCTURE OF THE ACTIVE MEDIUM OF A HF LASER WITH A RADIALLY EXPANDING NOZZLE UNIT"", 《JOURNAL OF ENGINEERING PHYSICS AND THERMOPHYSICS》 * |
| 施建华 等: ""DF/HF化学激光器HYLTE喷管的副喷管质量流量系数"", 《强激光与粒子束》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576036A (en) * | 2020-11-18 | 2022-06-03 | 北京动力机械研究所 | Ramjet and aircraft |
| CN114576036B (en) * | 2020-11-18 | 2023-08-15 | 北京动力机械研究所 | Ramjet engine and aircraft |
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| Publication number | Publication date |
|---|---|
| CN106848810B (en) | 2019-03-19 |
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