CN109217081A - A kind of non-injection height recovery pressure COIL laser - Google Patents
A kind of non-injection height recovery pressure COIL laser Download PDFInfo
- Publication number
- CN109217081A CN109217081A CN201811373095.6A CN201811373095A CN109217081A CN 109217081 A CN109217081 A CN 109217081A CN 201811373095 A CN201811373095 A CN 201811373095A CN 109217081 A CN109217081 A CN 109217081A
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- air
- flow
- supersonic
- pressure
- jet pipe
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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
- H01S3/03—Constructional details of gas laser discharge tubes
- H01S3/036—Means for obtaining or maintaining the desired gas pressure within the tube, e.g. by gettering, replenishing; Means for circulating the gas, e.g. for equalising the pressure within the tube
-
- 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
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/22—Gases
- H01S3/2215—Iodine compounds or atomic iodine
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
The present invention relates to a kind of non-injection height to restore pressure COIL laser.The covering device is connected between Oxygen Generator and optical cavity, for generating the air-flow of high stagnation pressure, low static pressure.Height restores pressure nozzles with injector and is divided into two parts: primary air O2(1Δ) supersonic nozzle and I2/N2Supersonic nozzle.Primary air O2(1Δ) supersonic nozzle makes nozzle exit Mach number reach 2, I for generating supersonic airstream2/N2The purpose of supersonic nozzle is to inject I in main jet pipe supersonic speed expansion segment2/N2The static pressure that main jet pipe exit flow is mixed and increased to reinforce air-flow, can greatly reduce the volume of Pressure Recovery System in this way, provide strong support for the high-efficiency compact of oxygen iodine chemical laser.The non-nozzles with injector of oxygen iodine chemical laser of the present invention has structure simple, high-efficient, restores the realization of pressure particularly suitable for oxygen iodine chemical laser height.
Description
Technical field
It is specifically a kind of to generate high static pressure air-flow for chemical laser the present invention relates to oxygen iodine chemical laser
Effuser device.
Background technique
The stagnation pressure of air-flow is about 30torr in traditional oxygen iodine chemical laser optical cavity, Mach number is about 2, and external environment
Air pressure is 760torr, and air-flow cannot be directly discharged into atmosphere from optical cavity, thus chemical laser needs Pressure Recovery System, tradition
Pressure Recovery System have the big tank of vacuum, ejection system, adsorption system.Although these Pressure Recovery System forms are different, its
Common ground is that volume is big, and the volume of Pressure Recovery System is the maximum barrier for restricting oxygen iodine chemical laser and moving towards efficient motorization
Hinder.Ejection system is suitable for the airborne COIL equipment in high-altitude, and for absorption type COIL under non-high altitude conditions, big flow gas makes
The volume for obtaining cryogenic absorption device is very big, it is difficult to realize the high-efficiency compact of COIL.
Non- injection type height, which restores pressure nozzle, can produce the air-flow of high static pressure, from traditional COIL nozzle exit about 3torr
It is increased to 5torr, when can reduce after optical cavity the volume of diffuser and cryogenic absorption in this way while can also extend laser and go out light
Between.The design that non-injection type height restores pressure nozzle is divided into two parts:
First part is primary air O2(1Δ) supersonic nozzle, primary air O2(1Δ) horse after rear jet accelerates decompression
Conspicuous number can achieve 2.
Second part is I2/N2Supersonic nozzle, iodine and nitrogen carrier gas Mach 2 ship 1.0-1.5 after the jet pipe, the part
Air-flow injects primary air in main nozzle divergence cone at an angle, completes the biochemical reaction of hybrid concurrency of air-flow.
I is injected using subsonic speed section for traditional oxygen iodine chemical laser2/N2Air-flow, the air-flow very little of secondary jet pipe and
Main jet pipe front end is injected so that the pressure loss increases.Main jet pipe is designed using the supersonic speed method of characteristic curves, using simple " contraction-
Expansion " formula means design I2/N2The secondary jet pipe of air-flow.
Summary of the invention
Present invention aims at the disadvantages to overcome traditional oxygen iodine chemical laser nozzle exit air-flow static pressure too low, provide
A kind of non-injection type height recovery pressure nozzle for oxygen iodine chemical laser.The present invention is mounted on the oxygen of oxygen iodine chemical laser
Between generator and optical cavity, by High Mach number nozzles with injector and primary air subsonic effuser, drawing for High Mach number is generated respectively
The primary air for stream and the near-sonic speed of emanating, and the two hybrid reaction is made by baffle.This kind of jet pipe can produce high static pressure
Air-flow, the miniaturization for oxygen iodine chemical laser Pressure Recovery System provide favourable conditions.The present invention can be used for oxygen iodine chemical and swash
It is high in light device absorption type Pressure Recovery System to restore stress problems.
In order to achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of non-injection height restores pressure COIL laser, be mounted on oxygen iodine chemical laser Oxygen Generator and optical cavity it
Between, for generating the air-flow of high stagnation pressure, low static pressure, including the primary air supersonic nozzle for being connect with Oxygen Generator, and with
The connected I of iodine chamber2/N2Air-flow pair jet pipe, primary air O2(1Δ) supersonic nozzle and I2/N2Supersonic nozzle constitutes high recovery pressure
Power nozzles with injector.The O being connected directly with Oxygen Generator2(1Δ) primary air supersonic nozzle, this section of jet pipe is using feature
Collimation method is designed, and makes nozzle exit design Mach 2 ship 2 for generating supersonic airstream；The I2/N2Air-flow pair jet pipe
Using simple " converging diverging " formula design, the purpose is to generate the supersonic airstream of Mach number 1.0-1.5, in main jet pipe Supersonic
Fast expansion segment injects I2/N2The static pressure of main jet pipe exit flow is mixed and increased to reinforce air-flow.Pass through " converging diverging " formula
It designs I2/N2Air-flow accelerates to supersonic speed, primary air O2(1Δ) by supersonic nozzle generate exit Mach number be 2 gas
Stream；I2/N2Air-flow is injected in supersonic speed expansion segment, and two strands of air-flows carry out hybrid concurrency biochemical reaction under the conditions of supersonic speed.
The present apparatus is three-dimensional devices, does not do specially treated upwards in exhibition.
The present invention has the advantage that the non-ejector-type exhaust system of the set is designed by " converging diverging " formula by I2/N2Air-flow adds
Speed arrives supersonic speed, primary air O2(1Δ) by supersonic nozzle generate exit Mach number be 2 air-flow；I2/N2Air-flow is in Supersonic
Fast expansion segment injection, two strands of air-flows carry out hybrid concurrency biochemical reaction under the conditions of supersonic speed, because of secondary streams injection phase
In supersonic speed section and I2/N2Stream pressure increases to 400torr, so that the pressure of main nozzle exit can achieve 5torr, horse
Conspicuous number is about 2.It can thus be seen that the non-injection type height, which restores pressure nozzle, can produce high static pressure air-flow, so that chemistry swashs
Increase between when the cryogenic absorption device volume of light device reduces, laser goes out light.Oxygen iodine chemical laser of the present invention it is non-
Nozzles with injector has structure simple, high-efficient, restores the realization of pressure particularly suitable for oxygen iodine chemical laser height.
Detailed description of the invention
Fig. 1 is the schematic diagram that non-injection type oxygen iodine chemical laser height restores pressure nozzle.
In figure: 1- primary air supersonic nozzle, 2-I2/N2Air-flow pair jet pipe.
Specific embodiment
Now in conjunction with attached drawing and specific implementation, just the present invention makees non-injection type oxygen iodine chemical laser height recovery pressure nozzle
It is further described.But it is merely to illustrate certain specific embodiments of the invention, but should not be understood as protecting the present invention
Protect any restriction of range.
The present invention restores pressure nozzle, one end and Oxygen Generator phase for the high of non-injection type oxygen iodine chemical laser
Even, the other end is connected with optical cavity.Nozzle Design is as shown in Figure 1, primary air O2(1Δ) by primary air supersonic nozzle 1, it is spraying
Pipe outlet air flow velocity reaches 2.0；I2/N2Air-flow pair jet pipe 2, gasflow mach number can achieve 1.2-1.5.Height restores pressure
What nozzles with injector was connected it is characterized by comprising the supersonic nozzle for connecting with Oxygen Generator and with iodine chamber " receives converging/diverging
" formula supersonic nozzle.
Embodiment described above only expresses embodiments of the present invention, and but it cannot be understood as to the invention patent
Range limitation, it is noted that for those skilled in the art, without departing from the inventive concept of the premise, also
Several modifications and improvements can be made, these are all belonged to the scope of protection of the present invention.
Claims (1)
1. a kind of non-injection height restores pressure COIL laser, which is characterized in that the device is mounted on oxygen iodine chemical laser
Between Oxygen Generator and optical cavity, including the primary air supersonic nozzle for being connect with Oxygen Generator, and the I being connected with iodine chamber2/
N2Air-flow pair jet pipe；The O2(1Δ) primary air supersonic nozzle is designed using the method for characteristic curves, for generating supersonic speed
Air-flow；The I2/N2Air-flow pair jet pipe is using simple " converging diverging " formula design, for generating the super of Mach number 1.0-1.5
Velocity of sound air-flow injects I in main jet pipe supersonic speed expansion segment2/N2The static pressure of main jet pipe exit flow is mixed and increased to reinforce air-flow
Power；
It is designed by " converging diverging " formula by I2/N2Air-flow accelerates to supersonic speed, primary air O2(1Δ) it is produced by supersonic nozzle
The air-flow that raw exit Mach number is 2；I2/N2The I of air-flow pair jet pipe2/N2Air-flow is injected in supersonic speed expansion segment, and two strands of air-flows exist
The biochemical reaction of hybrid concurrency is carried out under the conditions of supersonic speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373095.6A CN109217081A (en) | 2018-11-19 | 2018-11-19 | A kind of non-injection height recovery pressure COIL laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373095.6A CN109217081A (en) | 2018-11-19 | 2018-11-19 | A kind of non-injection height recovery pressure COIL laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109217081A true CN109217081A (en) | 2019-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811373095.6A Pending CN109217081A (en) | 2018-11-19 | 2018-11-19 | A kind of non-injection height recovery pressure COIL laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109217081A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1239194A (en) * | 1998-06-09 | 1999-12-22 | 弗拉吉米尔·菲森科 | Method of operation of jet apparatus and device for realizing the same |
| US20030227955A1 (en) * | 2002-06-10 | 2003-12-11 | George Emanuel | Efficient method and apparatus for generating singlet delta oxygen at an elevated pressure |
| US20050281307A1 (en) * | 2004-06-22 | 2005-12-22 | George Emanuel | Laser with brayton cycle outlet pump |
| CN101079531A (en) * | 2006-05-26 | 2007-11-28 | 中国科学院大连化学物理研究所 | Oxygen iodine laser without dilution gas |
| CN101079529A (en) * | 2006-05-26 | 2007-11-28 | 中国科学院大连化学物理研究所 | Oxygen-iodine chemical laser ultrasonic oxygen iodine mixing spraying pipe with nitrogen as the dilution gas |
| CN201636866U (en) * | 2009-07-10 | 2010-11-17 | 天津大学 | Supersonic flame cutting torch |
| CN103174520A (en) * | 2013-04-03 | 2013-06-26 | 南京航空航天大学 | Subsonic outflowing high external pressure internal waverider type air inlet and designing method thereof |
| CN103887684A (en) * | 2012-12-21 | 2014-06-25 | 中国科学院大连化学物理研究所 | Nozzle module for transversal flow injection iodine mixing nozzle experiment research |
-
2018
- 2018-11-19 CN CN201811373095.6A patent/CN109217081A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1239194A (en) * | 1998-06-09 | 1999-12-22 | 弗拉吉米尔·菲森科 | Method of operation of jet apparatus and device for realizing the same |
| US20030227955A1 (en) * | 2002-06-10 | 2003-12-11 | George Emanuel | Efficient method and apparatus for generating singlet delta oxygen at an elevated pressure |
| US20050281307A1 (en) * | 2004-06-22 | 2005-12-22 | George Emanuel | Laser with brayton cycle outlet pump |
| US20070036193A1 (en) * | 2004-06-22 | 2007-02-15 | George Emanuel | Laser with Brayton cycle outlet pump |
| CN101079531A (en) * | 2006-05-26 | 2007-11-28 | 中国科学院大连化学物理研究所 | Oxygen iodine laser without dilution gas |
| CN101079529A (en) * | 2006-05-26 | 2007-11-28 | 中国科学院大连化学物理研究所 | Oxygen-iodine chemical laser ultrasonic oxygen iodine mixing spraying pipe with nitrogen as the dilution gas |
| CN201636866U (en) * | 2009-07-10 | 2010-11-17 | 天津大学 | Supersonic flame cutting torch |
| CN103887684A (en) * | 2012-12-21 | 2014-06-25 | 中国科学院大连化学物理研究所 | Nozzle module for transversal flow injection iodine mixing nozzle experiment research |
| CN103174520A (en) * | 2013-04-03 | 2013-06-26 | 南京航空航天大学 | Subsonic outflowing high external pressure internal waverider type air inlet and designing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| D. L. CARROLL 等: "ADVANCED MIXING NOZZLE CONCEPTS FOR COIL", 《PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON LASERS "99》 * |
| 王增强 等: "翼片扰动对COIL超音速平行流混合的影响", 《强激光与粒子束》 * |
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