CN103887692B - Concurrent flow ultrasonic oxygen-iodine mixing nozzle - Google Patents
Concurrent flow ultrasonic oxygen-iodine mixing nozzle Download PDFInfo
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- CN103887692B CN103887692B CN201210563298.8A CN201210563298A CN103887692B CN 103887692 B CN103887692 B CN 103887692B CN 201210563298 A CN201210563298 A CN 201210563298A CN 103887692 B CN103887692 B CN 103887692B
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Abstract
The invention relates to a concurrent flow ultrasonic oxygen-iodine mixing nozzle for research into light extraction operation of an ultrasonic iodine-injected chemical oxygen-iodine laser or a concurrent flow ultrasonic mixed flow field. The nozzle is mainly characterized in that an oxygen air flow and an iodine air flow are both ultrasonic and are subjected to concurrent flow mixing; an iodine nozzle outlet is provided with two rows of special disturbance fins for enhancing a mixing effect; through a flange sinking design on a nozzle module, it is ensured that a flow field is visual after flowing along a flow direction nozzle outlet, and the test research on a mixed flow field is facilitated. For realizing the aforementioned functional characteristics of the nozzle, a specific processing technology process is designed. Compared to a subsonic-speed transverse flow iodine-injected mixing nozzle commonly used on a conventional chemical oxygen-iodine laser, the iodine injection mode and structural design of the nozzle provided by the invention are novel, and convenience is provided for the design research on an ultrasonic iodine-injected chemical oxygen-iodine laser and the research on a concurrent flow ultrasonic mixed flow field.
Description
Technical field
The present invention relates to a kind of concurrent flow supersonic speed oxygen iodine mixing jet tube, note the COIL of iodine for supersonic speed
Go out light operation or the research of concurrent flow supersonic speed mixing flow field.
Background technology
Investigation on Supersonic Coil device common at present(COIL)The general intake method using iodine and its carrier gas be
The subsonic speed section injection of nozzle throat upstream.Subsonic speed section notes the mixing that iodine can obtain preferable injection iodine and main oxygen stream,
And realize the dissociation of I2 in O2 (a1 Δ) air-flow with helium high dilution.These gain medias are subsequently in a supersonic speed
Expand in jet pipe, to reduce gas flow temperature, thus reduce realizing population upset and the O2's (a1 Δ) required by postiive gain
Threshold yield.This method has been successfully obtained application on many efficient COIL devices.But note iodine in subsonic speed,
With respect to singlet oxygen generator(SOG)The flow of air-flow, iodine and its carrier gas be can not ignore, therefore the note of iodine and its carrier gas
Membership causes primary air pressure rise and speed to decline, simultaneously because the subsonic speed section pressure of jet pipe higher and also from optical cavity away from
From relatively far away from, the excited state particle quenching loss of therefore subsonic speed section oxygen iodine hybrid plan is larger, and this will affect oxyiodination
Learn the operational efficiency of laser instrument.
Injected in supersonic speed section by iodine and its carrier gas, the pressure rise of the primary air by injection air-flow generation can be avoided
Decline with speed, to reduce the quenching process of O2 (a1 Δ), extracting for downstream laser provides more O2 (a1 Δ).Supersonic speed section
That notes iodine another advantage is that the program is the COIL of carrier gas more suitable for non-helium, such as nitrogen carrier gas COIL or carbon dioxide carrier gas
COIL.The main advantage that these gases do carrier gas is that cost is relatively low, but because the molecular weight of these gases is both greater than helium, because
This its flow velocity in pipeline is also corresponding relatively slow, in this case, if still adopting subsonic speed section to note iodine, can cause bigger
O2 (a1 Δ) loss, therefore in this case, supersonic speed section note iodine be an inevitable choice.In addition supersonic speed mixing is gone back
It is possible to obtain power distribution evenly in chamber, thus reducing the impact that Deformation of resonator mirror brings to laser performance performance.
The external research to the mixing of supersonic speed oxygen iodine probably starts from the end of the nineties in last century.USAF weapon is real within 1999
Test the Madden of room, T.J. and G.D.Hager et al. reports them to Investigation on Supersonic Coil device(Helium is master dilution
Gas)The simulation of upper several different note iodine schemes calculates compares, including subsonic speed section injection iodine molecule, supersonic speed section injection iodine molecule
Inject atomic iodine etc. with supersonic speed section.They are calculated by CFD model, compare the performance of the laser instrument of above-mentioned three kinds of schemes,
Iodine scheme is noted to two supersonic speed sections and has obtained relatively more positive result.It is horizontal that subsequent Israelis devises a kind of supersonic speed section
The oxygen iodine mixing jet tube of streamer iodine, and carried out a series of experimental exploring on COIL, achieve good achievement in research.Day
I have also been made a lot of exploration work in this respect, and they innovatively devise a kind of supersonic nozzle of X-shaped, significantly carry
The high efficiency of supersonic speed mixing, its chemical efficiency has reached 33% about.
Some achievements in research based on forefathers and research experience, this patent novelty devise a kind of supersonic speed concurrent flow
The oxygen iodine mixing jet tube of mixing, the enhancing mixing of the disturbance fin of cooperation particular design, this jet pipe runs in COIL and flow field is surveyed
Examination research aspect is successfully applied.
Content of the invention
A kind of concurrent flow supersonic speed oxygen iodine mixing jet tube, for supersonic speed note iodine COIL go out light run or
The research of concurrent flow supersonic speed mixing flow field.Its chief component is(Fig. 1):Nozzle body, upper flange, lower flange, oxygen
Jet pipe, iodine jet pipe, bottoming hole, disturbance fin.
The profile of nozzle body is cuboid, and portion is provided with strip cavity, along its length inside nozzle body in the inner
Cavity constitutes oxygen spray pipe, and the lower end of nozzle body short transverse is provided with oxygen spray pipe entrance, the upper end of short transverse is provided with oxygen
Gas nozzle exit, iodine jet pipe is placed in nozzle body internal cavities along the length direction of nozzle body, and iodine jet pipe is by nozzle body
Internal cavities be separated into two parallel mutually disconnected oxygen spray pipe passages along the width of nozzle body;
Iodine jet pipe is airtight hollow strip shape body.
Iodine jet pipe is converging diverging jet pipe, and the iodine outlet of jet pipe is located at the iodine jet pipe wall exporting side near oxygen spray pipe
On face;
The iodine jet pipe inner chamber exporting side near oxygen spray pipe is expansion segment, the iodine jet pipe near oxygen spray pipe inlet side
Inner chamber is contraction section;
Length direction along nozzle body, the two ends wall in iodine jet pipe are provided with empty with residing for iodine jet pipe internal contraction section
The iodine entrance that chamber is connected;
Along the length direction of nozzle body, the iodine jet pipe wall in iodine exit is provided with disturbance fin;
Disturbance fin carries the strip shape body of square toothing, the square teeth directional iodine outlet-inclined impeller vane on strip shape body for upper end;
Length direction along nozzle body, the wall in cavity residing for iodine jet pipe internal contraction section are provided with bottoming hole, plus
It is provided with electric heating tube, to prevent iodine vapor from condensing in jet pipe wall in hot hole.
It is respectively equipped with upper flange and lower flange, upper flange on the nozzle body of oxygen spray pipe entrance and oxygen spray pipe outlet
Using design of sinking, that is, upper flange and main body joint face are located at below nozzle exit plane;So it is being connected with top test section
When, so that the lowest visible face of the window of test section is concordant with nozzle exit, to facilitate flow-field test to study;
Lower flange is connected with singlet oxygen generator.
The profile of nozzle body is a cuboid, sets up coordinate system, with the width of nozzle body as x-axis, highly just
To for y-axis, length direction is z-axis, and its orbicular spot o is located at the geometric center of oxygen spray pipe inlet face below nozzle body(Fig. 2);
Based on above-mentioned coordinate system, nozzle body is with regard to yoz plane axial symmetry;Wherein oxygen spray pipe has two to put down with regard to yoz
Face symmetric channel;Iodine jet pipe has a passage, in the middle of two passages of oxygen jet pipe, and with regard to yoz plane symmetry;Oxygen spray pipe
Outlet is concordant with iodine nozzle exit, and exit flow is parallel.
Oxygen spray pipe right channel wall molded line exports to entrance from oxygen spray pipe and is:Supersonic speed section is by two sections of radiuses
56.16mm circular arc(First, second circular arc S1, S2)Formed, its central coordinate of circle is respectively(-45.2,75.6)With(59.4,
75.6);Venturi is the circular arc of 4mm by two sections of radiuses(Three, the 4th circular arc S3, S4)Formed, its central coordinate of circle is respectively
(1.1,60.6)With(13.1,60.6);The subsonic speed section left and right sides has two sections of circular arcs and one section of rectilinear(-al) of between which respectively:
Left side is the 5th circular arc S5(Radius 28mm, the center of circle(31.5,50.6)), the 7th circular arc S7(Radius 37mm, the center of circle(-30.7,
20.1))With middle one section of straight line;Right side is the 6th circular arc S6(Radius 37.1mm, the center of circle(-15,30.6)), the 8th circular arc S8
(Radius 54mm, the center of circle(-30.7,20.1))With middle one section of straight line;
Iodine nozzle passage wall molded line is:Two side walls molded line is symmetrical with regard to y-axis around;Venturi width is 1mm;Expansion
Section is become by the symmetrical oblique line shape in left and right two, and it is 10mm, exit width 5.4mm along flowing to length;The contraction section left and right sides is respectively
It is made up of one section of oblique line, one end straight line and 1/4 circular arc;Its bend is 5mm along gas flow length;Two sections of rectilineal intervals
5mm;Arc diameter 5mm, center coordinate of arc is(0,25.6).
The length in z-axis direction for the nozzle body internal cavities depending on the flow condition of COIL that mated and
Fixed, specific formula for calculation is:
In formula, | Z | nozzle body is along z-axis length;DhOxygen spray pipe venturi width;Singlet oxygen generator
Output gas flow total mass flow rate;T0Total airflow temperature;P0Air-flow stagnation pressure;KmixTotal stream of singlet oxygen generator output gas flow
Coefficient of discharge;
Oxygen spray pipe design exit Mach number is 2.16;Iodine Nozzle Design exit Mach number is 3.21;
Disturbance fin is located at oxygen spray pipe and iodine nozzle exit boundary, and to iodine jet pipe inner inclination;Disturbance fin
Main Function is to produce flow direction to be vortexed, to strengthen the mixing of oxygen stream and its flowing of iodine.In disturbance finned length and nozzle body
Cavity length is identical;Square tooth width is identical with spacing, and disturbance fin is fixed on iodine outside nozzle, its plane and airflow direction angle
For the corresponding Mach angle of iodine exit flow Mach number.
After disturbance fin is fixed on iodine outside nozzle, each side's tooth is pressed and reverses 45 ° in the same direction clockwise or counterclockwise, make
Each side's tooth becomes a continuous cambered surface of rotating, to improve its horizontal disturbance effect.
In order to realize above-mentioned mentality of designing, jet pipe module process devises a suitable technological process:【1】
With wire cutting, to jet pipe module size, corresponding cube carries out wire cutting according to the design line style of jet pipe.Wire cutting is along the z-axis direction
Completely penetrate through, in order to disintegrate after wall oxygen iodine jet pipe cutting on line, each thickness having reserved 5mm up and down in blanking(As Fig. 9 institute
Show);【2】With the leftover bits and pieces of wire cutting, cut out the oxygen jet pipe closure plate that thickness is 2mm and iodine jet pipe closure plate according to design requirement;【3】
Oxygen jet pipe closure plate and iodine jet pipe closure plate are welded on oxygen jet pipe and the corresponding block-up position of iodine jet pipe;【4】Before wire cutting excision
The redundance of each up and down 5mm that face is reserved.【5】According to design requirement, weld the mistake of the air intake structure of iodine vapor and its carrier gas
Cross section -1, changeover portion -2, quick ferrule fitting.【6】According to design requirement, weld upper flange and lower flange.
Brief description
Fig. 1. jet pipe overall pattern;
1:Nozzle body;2:Upper flange;3:Lower flange;4:Oxygen spray pipe;5:Iodine jet pipe;
6:Bottoming hole;7:Disturbance fin;
Fig. 2. nozzle body figure;
Fig. 3. oxygen nozzle passage wall molded line;
S1:First circular arc;S2:Second circular arc;S3:Three-arc;S4:4th circular arc;S5:5th circular arc;
S6:6th circular arc;S7:7th circular arc;S8:8th circular arc;
Fig. 4. iodine nozzle passage molded line;
I1:Iodine nozzle exit;I2:Iodine jet pipe expanding section;I3:Iodine nozzle throat;
I4:Iodine jet pipe contraction section;
Fig. 5. oxygen jet pipe airintake direction and side closure plate schematic diagram;
8:Oxygen jet pipe side closure plate;
Fig. 6. iodine jet pipe airintake direction and side closure plate schematic diagram;
9:Iodine jet pipe side closure plate;
Fig. 7. the air intake structure of iodine vapor and its carrier gas;
10:Changeover portion -1;11:Changeover portion -2;12:Quick ferrule fitting;
Fig. 8. disturbance fin;
Fig. 9. nozzle body wire cutting schematic diagram.
The invention has the beneficial effects as follows:
This, the present invention relates to a kind of concurrent flow supersonic speed oxygen iodine mixing jet tube, notes the oxygen-iodine chemical laser of iodine for supersonic speed
Device goes out the experimental study of light operation or concurrent flow supersonic speed mixing flow field.Jet pipe involved in the present invention adopts special disturbance fin
Good humidification is served to the mixing of supersonic speed oxygen iodine air-flow, oxygen iodine air-flow adopts supersonic speed concurrent flow mixing side simultaneously
Formula, this provides possibility for the Effec-tive Function of COIL.Additionally, this jet pipe module has carried out to upper flange sinking to setting
Meter, so that oxygen iodine supersonic speed mixing flow field starts from nozzle exit, provides for oxygen iodine supersonic speed mixing flow field experimental study
Facility.
Specific embodiment
A kind of concurrent flow supersonic speed oxygen iodine mixing jet tube, for supersonic speed note iodine COIL go out light run or
The research of concurrent flow supersonic speed mixing flow field.Its chief component is(Fig. 1):Nozzle body 1, upper flange 2, lower flange 3, oxygen
Gas blowout pipe 4, iodine jet pipe 5, bottoming hole 6, disturbance fin 7.
It is respectively equipped with upper flange on the nozzle body 1 of oxygen spray pipe 4 entrance and oxygen spray pipe 4 outlet(2)And lower flange
3, upper flange is located at below nozzle exit plane using design of sinking, i.e. upper flange and main body joint face;So surveying with top
When examination section connects, so that the lowest visible face of the window of test section is concordant with nozzle exit, to facilitate flow-field test to study;Under
Flange 3 is connected with singlet oxygen generator.
The profile of nozzle body 1 is cuboid, and portion is provided with strip cavity, along its length by nozzle body 1 in the inner
Portion's cavity constitutes oxygen spray pipe 4, and the lower end of nozzle body 1 short transverse is provided with oxygen spray pipe 4 entrance, the upper end of short transverse sets
Oxygen spray pipe 4 is had to export, iodine jet pipe 5 is placed in nozzle body 1 internal cavities along the length direction of nozzle body 1, iodine jet pipe 5 will
The internal cavities of nozzle body 1 along nozzle body 1 width be separated into two parallel mutually disconnected oxygen spray pipes lead to
Road;Iodine jet pipe 5 be airtight hollow strip shape body it is characterised in that:
Iodine jet pipe 5 is converging diverging jet pipe, and the iodine outlet of jet pipe is located at the iodine jet pipe 5 exporting side near oxygen spray pipe 4
On wall;
Iodine jet pipe 5 inner chamber exporting side near oxygen spray pipe 4 is expansion segment, the iodine near oxygen spray pipe 4 inlet side
Jet pipe 5 inner chamber is contraction section;
Length direction along nozzle body 1, the two ends wall in iodine jet pipe 5 are provided with and iodine jet pipe 5 internal contraction section institute
The iodine entrance that place's cavity is connected;
Along the length direction of nozzle body 1, iodine jet pipe 5 wall in iodine exit is provided with disturbance fin 7;
Disturbance fin 7 carries the strip shape body of square toothing, the square teeth directional iodine outlet-inclined impeller vane on strip shape body for upper end;
Length direction along nozzle body 1, the wall in cavity residing for iodine jet pipe 5 internal contraction section are provided with bottoming hole 6,
It is provided with electric heating tube, to prevent iodine vapor from condensing in jet pipe wall in bottoming hole 6.
The profile of nozzle body is a cuboid, sets up coordinate system, with the width of nozzle body as x-axis, highly just
To for y-axis, length direction is z-axis, and its orbicular spot o is located at the geometric center of oxygen spray pipe 4 inlet face below nozzle body;
Based on above-mentioned coordinate system, nozzle body is with regard to yoz plane axial symmetry;Wherein oxygen spray pipe has two to put down with regard to yoz
Face symmetric channel;Iodine jet pipe has a passage, in the middle of two passages of oxygen jet pipe, and with regard to yoz plane symmetry;Oxygen spray pipe
Outlet is concordant with iodine nozzle exit, and exit flow is parallel.
Oxygen spray pipe 4 right channel wall molded line exports to entrance from oxygen spray pipe 4 and is:Supersonic speed section is equal by two sections of radiuses
Circular arc for 56.16mm(First, second circular arc S1, S2)Formed, its central coordinate of circle is respectively(-45.2,75.6)With(59.4,
75.6);Venturi is the circular arc of 4mm by two sections of radiuses(Three, the 4th circular arc S3, S4)Formed, its central coordinate of circle is respectively
(1.1,60.6)With(13.1,60.6);The subsonic speed section left and right sides has two sections of circular arcs and one section of rectilinear(-al) of between which respectively:
Left side is the 5th circular arc S5(Radius 28mm, the center of circle(31.5,50.6)), the 7th circular arc S7(Radius 37mm, the center of circle(-30.7,
20.1))With middle one section of straight line;Right side is the 6th circular arc S6(Radius 37.1mm, the center of circle(-15,30.6)), the 8th circular arc S8
(Radius 54mm, the center of circle(-30.7,20.1))With middle one section of straight line;
Iodine jet pipe(5)Channel wall molded line is:Two side walls molded line is symmetrical with regard to y-axis around;Venturi I3 width is
1mm;Expansion segment I2 is become by the symmetrical oblique line shape in left and right two, and it is 10mm along flowing to length, and outlet I1 width is 5.4mm;Shrink
The section I4 left and right sides is made up of one section of oblique line, one end straight line and 1/4 circular arc respectively;Its bend along gas flow length is
5mm;Two sections of rectilineal interval 5mm;Arc diameter 5mm, center coordinate of arc is(0,25.6).
The length in z-axis direction for the nozzle body internal cavities depending on the flow condition of COIL that mated and
Fixed, specific formula for calculation is:
In formula, | z | nozzle body is along z-axis length;DhOxygen spray pipe venturi width;Singlet oxygen generator
Output gas flow total mass flow rate;T0Total airflow temperature;P0Air-flow stagnation pressure;KmixTotal stream of singlet oxygen generator output gas flow
Coefficient of discharge;
Oxygen spray pipe design exit Mach number is 2.16;Iodine Nozzle Design exit Mach number is 3.21;
Disturbance fin 7 is located at oxygen spray pipe and iodine nozzle exit boundary, and to iodine jet pipe inner inclination;Disturbance fin
Main Function is to produce flow direction to be vortexed, to strengthen the mixing of oxygen stream and its flowing of iodine.
Disturbance fin 7 length is identical with nozzle body cavity length;Square tooth width is identical with spacing, and disturbance fin is fixed on
Iodine outside nozzle, its plane is the corresponding Mach angle of iodine exit flow Mach number with airflow direction angle.
After disturbance fin 7 is fixed on iodine outside nozzle, each side's tooth is pressed and reverses 45 ° in the same direction clockwise or counterclockwise,
Each side's tooth is made to become a continuous cambered surface of rotating, to improve its horizontal disturbance effect.Concrete operations processing process:
【1】With wire cutting, to jet pipe module size, corresponding cube carries out wire cutting according to the design line style of jet pipe.Line is cut
Cut and completely penetrate through along the z-axis direction, in order to disintegrate after wall oxygen iodine jet pipe cutting on line, each up and down in blanking reserve 5mm's
Thickness(As shown in Figure 9).
【2】With the leftover bits and pieces of wire cutting, cut out, according to design requirement, the oxygen jet pipe closure plate that thickness is 2mm(8)With iodine jet pipe
Closure plate(9);
【3】Oxygen jet pipe closure plate(8)With iodine jet pipe closure plate(9)It is welded on oxygen jet pipe and the corresponding block-up position of iodine jet pipe;
【4】Redundance with reserved each up and down 5mm before wire cutting excision.
【5】According to design requirement, weld the changeover portion -1 of the air intake structure of iodine vapor and its carrier gas(10), changeover portion -2
(11), quick ferrule fitting(12).
【6】According to design requirement, weld upper flange(2)And lower flange(3).
Claims (8)
1. a kind of concurrent flow supersonic speed oxygen iodine mixing jet tube, including
The profile of nozzle body (1) is cuboid, and portion is provided with strip cavity along its length in the inner, by nozzle body (1)
Portion cavity constitutes oxygen spray pipe (4), and the lower end of nozzle body (1) short transverse is provided with oxygen spray pipe (4) entrance, short transverse
Upper end is provided with oxygen spray pipe (4) outlet, and iodine jet pipe (5) is placed in the internal sky of nozzle body (1) along the length direction of nozzle body (1)
In chamber, iodine jet pipe (5) by the internal cavities of nozzle body (1) along nozzle body (1) width be separated into two parallel
Mutually disconnected oxygen spray pipe passage;Iodine jet pipe (5) be airtight hollow strip shape body it is characterised in that:
Iodine jet pipe (5) is converging diverging jet pipe, and the iodine outlet of jet pipe is located at the iodine jet pipe exporting side near oxygen spray pipe (4)
(5) on wall;
Iodine jet pipe (5) inner chamber exporting side near oxygen spray pipe (4) is expansion segment, close oxygen spray pipe (4) inlet side
Iodine jet pipe (5) inner chamber is contraction section;
Length direction along nozzle body (1), the two ends wall in iodine jet pipe (5) are provided with and iodine jet pipe (5) internal contraction section
The iodine entrance that residing cavity is connected;
Along the length direction of nozzle body (1), iodine jet pipe (5) wall in iodine exit is provided with disturbance fin (7);
Disturbance fin (7) carries the strip shape body of square toothing, the square teeth directional iodine outlet-inclined impeller vane on strip shape body for upper end;
Length direction along nozzle body (1), the wall in cavity residing for iodine jet pipe (5) internal contraction section are provided with bottoming hole
(6), it is provided with electric heating tube in bottoming hole (6), to prevent iodine vapor from condensing in jet pipe wall.
2. according to the concurrent flow supersonic speed oxygen iodine mixing jet tube described in claim 1 it is characterised in that:
It is respectively equipped with upper flange (2) and laxative remedy on the nozzle body (1) that oxygen spray pipe (4) entrance and oxygen spray pipe (4) export
Blue (3), upper flange is located at below nozzle exit plane using design of sinking, i.e. upper flange and main body joint face;So with
When square test section connects, so that the lowest visible face of the window of test section is concordant with nozzle exit, to facilitate flow-field test to grind
Study carefully;
Lower flange is connected with singlet oxygen generator.
3. according to the concurrent flow supersonic speed oxygen iodine mixing jet tube described in claim 1 it is characterised in that:
The profile of nozzle body sets up coordinate system, and with the width of nozzle body as x-axis, short transverse is y-axis, length direction
For z-axis, the geometric center of its orbicular spot o oxygen spray pipe (4) inlet face below nozzle body;
Based on above-mentioned coordinate system, nozzle body is with regard to yoz plane axial symmetry;Wherein oxygen spray pipe has two with regard to yoz plane pair
Claim passage;Iodine jet pipe has a passage, in the middle of two passages of oxygen jet pipe, and with regard to yoz plane symmetry;Oxygen spray pipe exports
Concordant with iodine nozzle exit, and exit flow is parallel.
4. according to the concurrent flow supersonic speed oxygen iodine mixing jet tube described in claim 2 it is characterised in that:
Oxygen spray pipe (4) right channel wall molded line exports to entrance from oxygen spray pipe (4) and is:Supersonic speed section is equal by two sections of radiuses
The first circular arc for 56.16mm, second circular arc S1, S2 are formed, its central coordinate of circle be respectively (- 45.2,75.6) and (59.4,
75.6);Venturi is the three-arc of 4mm by two sections of radiuses, the 4th circular arc S3, S4 is formed, its central coordinate of circle be respectively (1.1,
60.6) and (13.1,60.6);The subsonic speed section left and right sides has two sections of circular arcs and one section of rectilinear(-al) of between which respectively:Left side
For the 5th circular arc S5 (radius 28mm, the center of circle (31.5,50.6)), the 7th circular arc S7 (radius 37mm, the center of circle (- 30.7,20.1) and
Middle one section of straight line;Right side is radius 37.1mm, the center of circle (- 15,30.6) the 6th circular arc S6, radius 54mm, the center of circle (- 30.7,
20.1) the 8th circular arc S8 and middle one section of straight line;
All circular arcs are tangent smooth connection with circular arc and circular arc with the connection of straight line.
5. according to the concurrent flow supersonic speed oxygen iodine mixing jet tube described in claim 3 it is characterised in that:
Iodine jet pipe (5) channel wall molded line is:Two side walls molded line is symmetrical with regard to y-axis around;Venturi (I3) width is 1mm;
Expansion segment (I2) is become by the symmetrical oblique line shape in left and right two, and it is 10mm along flowing to length, exports (I1) width 5.4mm;Contraction section
(I4) left and right sides is made up of one section of oblique line, one end straight line and 1/4 circular arc respectively;Its bend along gas flow length is
5mm;Two sections of rectilineal interval 5mm;Arc diameter 5mm, center coordinate of arc is (0,25.6).
6. according to the concurrent flow supersonic speed oxygen iodine mixing jet tube described in claim 3 it is characterised in that:
The length in z-axis direction for the nozzle body internal cavities, depending on the flow condition of the COIL being mated, has
Body computing formula is:
In formula, | z | nozzle body is along z-axis length;DhOxygen spray pipe venturi width;The output of singlet oxygen generator
Air-flow total mass flow rate;T0Total airflow temperature;P0Air-flow stagnation pressure;KmixThe total flow system of singlet oxygen generator output gas flow
Number;
Oxygen spray pipe design exit Mach number is 2.16;Iodine Nozzle Design exit Mach number is 3.21;
Disturbance fin (7) is located at oxygen spray pipe and iodine nozzle exit boundary, and to iodine jet pipe inner inclination;The master of disturbance fin
Act on is to produce flow direction to be vortexed, to strengthen the mixing of oxygen stream and its flowing of iodine.
7. according to the concurrent flow supersonic speed oxygen iodine mixing jet tube described in claim 1 it is characterised in that:
Disturbance fin (7) length is identical with nozzle body cavity length;Square tooth width is identical with spacing, and disturbance fin is fixed on iodine
Outside nozzle, its plane is the corresponding Mach angle of iodine exit flow Mach number with airflow direction angle.
8. according to the concurrent flow supersonic speed oxygen iodine mixing jet tube described in claim 1 it is characterised in that:Disturbance fin (7) is fixing
After iodine outside nozzle, each side's tooth is pressed and reverses 45 ° in the same direction clockwise or counterclockwise, make each side's tooth become a company
Continuous cambered surface of rotating, to improve its horizontal disturbance effect.
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CN106848810B (en) * | 2015-12-04 | 2019-03-19 | 中国科学院大连化学物理研究所 | A kind of High Mach number low temperature array jet pipe for HF/DF chemical laser |
CN111211467B (en) * | 2018-11-22 | 2021-07-27 | 中国科学院大连化学物理研究所 | Efficient diffusion device for oxygen-iodine chemical laser |
CN111211468B (en) * | 2018-11-22 | 2020-12-29 | 中国科学院大连化学物理研究所 | High-recovery-pressure injection spray pipe |
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