CN104596918B - Multiple-parameter continuously adjustable jet flow impact atomization testing device under opening environment - Google Patents
Multiple-parameter continuously adjustable jet flow impact atomization testing device under opening environment Download PDFInfo
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- CN104596918B CN104596918B CN201510026186.2A CN201510026186A CN104596918B CN 104596918 B CN104596918 B CN 104596918B CN 201510026186 A CN201510026186 A CN 201510026186A CN 104596918 B CN104596918 B CN 104596918B
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Abstract
The invention discloses a multiple-parameter continuously adjustable jet flow impact atomization testing device under an opening environment. The multiple-parameter continuously adjustable jet flow impact atomization testing device comprises an experimental platform, a vertical jet nozzle, two oblique jet nozzles, a support capable of lifting up and down, a horizontal distance adjusting mechanism, an angle adjusting mechanism and an offset adjusting mechanism, wherein the horizontal distance adjusting mechanism, the angle adjusting mechanism and the offset adjusting mechanism are arranged on the support. After the above structure is adopted, the horizontal distance adjusting mechanism is used for continuously adjusting the length parameter before jet flow impact of the two oblique jet nozzles; the angle adjusting mechanism can be used for continuously adjusting the jet flow impact angle parameter of the two oblique jet nozzles; and the offset adjusting mechanism is used for continuously adjusting the jet flow offset parameter of the two oblique jet nozzles; and besides, the horizontal distance adjusting mechanism, the angle adjusting mechanism and the offset adjusting mechanism can skillfully utilize a micrometer or the geometric scaling-up principle, the adjusting precision is high, the operation is simple and intuitive, the structure is compact, the reliability is high, the testing precision is high and the testing device can be maintained conveniently.
Description
Technical field
The application is related to a kind of impinging jet atomization experimental rig, belongs to Liquid Propellant Rocket Engine field；Particularly
Multi-parameter continuously adjustabe type impinging jet atomization experimental rig under a kind of open environment.
Background technology
At present, on liquid atomization theoretical model it is also incomplete, liquid atomization characteristics rely primarily on semiempirical formula and
Experimental study is obtained, therefore the research of liquid atomization characteristics proposes more careful requirement to experimental rig.Apply to liquid
The experimental rig of body atomization characteristics research is a lot, mainly the pattern such as including pressure swirl, direct current impacting type, coaxial-type.
Direct current impinging injector utilizes the dynamic pressure of liquid as the effectively atomization of one kind and mixing pattern, the type nozzle
It is steady that head is lost in the liquid that moves in opposite directions, so that liquid crushing is into liquid band and drop.Due to simple structure, processing side
Just, direct current impinging injector is used widely on atomization cooling device, internal combustion engine and rocket engine.But, it is straight at present
Flowing the Design and analysis methods of impinging injector, to can not show a candle to coaxial injector so perfect, and this is mainly due to lacking to collision jet
Main atomization mechanism and subsequent mixed process enough understanding.Therefore, grinding by direct current impinging injector atomization test
Study carefully, the determination important in inhibiting to instructing the design of direct current impinging injector configuration and running parameter.
For impacting type liquid atomization experimental rig for, existing experimental rig using mechanism fixation by the way of, i.e.,
The impinging jet formula nozzle that configuration is fixed is fixed on test bracket, a nozzle configuration is once can be only done（Namely it is a kind of
Under test parameters）Experiment.However, experimental study needs to do the experiment under substantial amounts of different operating modes and test parameters, if pin
To under the conditions of each test parameters experiment redesign manufacture test battery device, not only cause the unnecessary wasting of resources,
Increase experimentation cost, also result in extension research cycle, substantially reduce the efficiency of experimental study.
Application content
The application technical problem to be solved is directed to above-mentioned the deficiencies in the prior art, and provides length before a kind of impinging jet
Multi-parameter energy continuously adjustabe, simple and direct-viewing operation, compact conformation, the reliabilities such as degree, jet impingement angle and impinging jet side-play amount
High, test accuracy is high, multi-parameter continuously adjustabe type impinging jet atomization experimental rig under open environment easy to maintenance.
In order to solve the above technical problems, the technical scheme that the application is used is：
Multi-parameter continuously adjustabe type impinging jet atomization experimental rig under a kind of open environment, including experiment porch and fixation
It is arranged at three jet nozzles above experiment porch.
At least provided with a root post and a support that can be up and down slid along column on the experiment porch.
The support includes a horizontal underframe and the front side frame with rack beam.
Three jet nozzles are a thrown up-straight nozzle and two tilting jet nozzles；Wherein, it is described to penetrate vertically
Flow nozzle is fixedly installed on the bottom centre of rack beam；Two tilting jet nozzles are separately positioned on thrown up-straight nozzle
Both sides.
Horizontal range governor motion is provided with the horizontal underframe, the jet for adjusting two tilting jet nozzles hits
Hit preceding length.
The horizontal range governor motion, including be arranged at two on horizontal underframe can levels or so sliding sliding block,
And two horizontal displacement adjusting meanss for being used for adjusting slider horizontal sliding；Be fixedly connected on front side of each sliding block one it is tilting
Jet nozzle.
Two angle adjusting mechanisms are additionally provided with the horizontal stand on rear side of two sliding blocks, regulation is respectively used to
The jet impingement angle of corresponding tilting jet nozzle.
Each angle adjusting mechanism, including one in fan-shaped angle scale, a connecting shaft and an angular adjustment rotation
Button.
The periphery of each angle scale is provided with teeth, and each described angular adjustment knob is built-in with and is meshed with teeth
Accurate thread.
One end of the every connecting shaft is fixedly connected with angle scale, and the other end of connecting shaft can be from a corresponding sliding block
In pass and can be rotated relative to the sliding block；The traversing through end of the connecting shaft tilting jet nozzle fixed with respective slide front side is consolidated
Fixed connection.
Between the fixed tilting jet nozzle of each described sliding block and its front side, side-play amount governor motion is additionally provided with, should
Side-play amount governor motion includes an offset adjusted screw rod and a side-play amount adjusting knob.
The traversing through end of the every connecting shaft is fixedly connected with one piece of installing plate, and the side-play amount governor motion is fixedly connected
On a mounting board.
A spacing blend stop is provided with rear side of each described sliding block.
Angle index line is provided with each described angle scale.
The precision of each angle disc spins regulation is 30 ".
Each described horizontal displacement adjusting means includes a horizontal brace rod being fixedly connected with a slide block, and the level connects
The top of extension bar is disposed with microdrum, the fixes sleeve of built-in nut and the horizontal range regulation rotation of built-in accurate screw rod
Button.
The degree of regulation of the horizontal displacement adjusting means is 10 microns.
The height adjustment knob for adjusting thrown up-straight nozzle axial height is additionally provided with the rack beam.
The rear side of isosceles triangle is provided with rear side of the horizontal stand, the column has two, the top of column
Crossbeam is provided with, the support height adjusting screw rod being connected with crossbeam is provided with the rear side.
The application has the advantages that using after said structure：
1. above-mentioned horizontal range governor motion, the ingenious principle that make use of micrometer, continuously can accurately be used to adjust two
Length before the impinging jet of individual tilting jet nozzle.The regulation of length, easy to operate before impinging jet, and degree of regulation is high, can essence
Really to 10 microns, the repeatability and reliability of experiment are high.
2. above-mentioned angle adjusting mechanism, ingenious to make use of geometry amplification principle, continuously accurately can be used to adjust two tiltedly
Put the jet impingement angle of jet nozzle.The regulation of jet impingement angle, easy to operate, degree of regulation is high, can be accurate to 30 ", experiment
Repeatability and reliability it is high.
3. above-mentioned side-play amount governor motion, also the ingenious principle that make use of micrometer, continuously can accurately be used for two tiltedly
The regulation of the impinging jet side-play amount of jet nozzle is put, can be made 2 or 3 jet nozzles are located in approximately the same plane and carry out jet
Clash into, it is also possible to make 2 or 3 jet nozzles are clashed into a solid space.The regulation of impinging jet side-play amount, behaviour
Facilitate, degree of regulation is high, can also be accurate to 10 microns, the repeatability and reliability of experiment are high.
4. the setting of above-mentioned thrown up-straight nozzle, by the opening to thrown up-straight nozzle or closure control, can realize
The two strands or three strands striking experiments of jet.
5. above-mentioned jet nozzle, it is detachable or be replaced by different model, it is easy to maintenance, and can meet different experiments will
Ask.
In sum, the application compensate for existing correlation test device and can not realize that what many test parameters continuously adjusted lacks
Fall into, reduce experimentation cost, and the experimental rig of the application is simple to operate, directly perceived, compact conformation, with high reliability and experiment
Precision.
Brief description of the drawings
Fig. 1 shows the vertical of multi-parameter continuously adjustabe type impinging jet atomization experimental rig under a kind of open environment of the application
View；
Fig. 2 shows that the partial structurtes of horizontal range governor motion, angle adjusting mechanism and side-play amount governor motion are illustrated
Figure；
Fig. 3 show a kind of open environment of the application under multi-parameter continuously adjustabe type impinging jet atomization experimental rig just
View；
Fig. 4 is shown under a kind of open environment of the application after multi-parameter continuously adjustabe type impinging jet atomization experimental rig
View；
Fig. 5 shows the left side of multi-parameter continuously adjustabe type impinging jet atomization experimental rig under open environment in the application
View.
Wherein have：10. experiment porch；20. columns；21. vertical chutes；22. flowmeters；23. crossbeams；231. pressure gauges；
30. supports；31. horizontal underframe；311. guide rails；32. front side frames；321. rack beams；322. height adjustment knobs；323. is vertical
Jet nozzle fixture；33. rear sides；34. support height adjusting screw rods；40. horizontal range governor motions；41. sliding blocks；411.
Spacing blend stop；42. horizontal brace rods；43. fixes sleeves；44. microdrums；45. horizontal range adjusting knobs；50. angular adjustments
Mechanism；51. angle scales；511. teeth；512. angle index lines；52. angular adjustment knobs；53. connecting shafts；54. installing plates；
60. side-play amount governor motions；61. side-play amount adjusting knobs；62. offset adjusted screw rods；63. tilting jet nozzle fixtures；70.
Jet nozzle；71. thrown up-straight nozzles；72. tilting jet nozzles.
Specific embodiment
The application is described in further detail with specific better embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, multi-parameter continuously adjustabe type impinging jet atomization experiment under a kind of open environment
Device, including experiment porch 10, column 20, support 30, horizontal range governor motion 40, angle adjusting mechanism 50, side-play amount are adjusted
Section mechanism 60 and 3 jet nozzles 70.Wherein, 3 jet nozzles 70 are：One thrown up-straight nozzle 71 and being arranged on is penetrated vertically
Two tilting jet nozzles 72 of the both sides of flow nozzle 71.
As shown in figure 1, test platform 10 is the supporting table of whole experimental rig, it is possible to place other test measurement instruments
Device.
Above-mentioned column 20 is fixedly installed on experiment porch 20.Column 20 can be 1,2,4 or many.Such as Fig. 1,
Shown in Fig. 3 and Fig. 4, column 20 is preferably 2, and the inner side of two root posts 20 is provided with a vertical chute 21, wherein one
Be provided with flowmeter 22 on column 20, flowmeter 22 can be used for Detection ＆ Controling flow to fluid in jet nozzle 70 flow it is big
It is small.The top of two root posts 20 is provided with crossbeam 23, and at least one pressure gauge 231, preferably three are provided with crossbeam 23.Often
Individual pressure gauge 231 connects 1 jet nozzle 70, the inlet pressure of each corresponding jet nozzle 70 or injection for Detection ＆ Controling
Pressure.
Above-mentioned support 30 is arranged in the vertical chute 21 of two root posts 20, and support 30 can glide along on vertical chute 21
Move.Support 30 includes a horizontal underframe 31, the front side frame 32 being arranged on front side of horizontal underframe 31 and is arranged at horizontal underframe 31
The rear side 33 of rear side.
Guide rail 311 and horizontal range governor motion 40 are provided with horizontal underframe 31.Wherein, guide rail 311 is in the horizontal direction
（That is X-direction）Set.
Front side frame 32 carries a rack beam 321, and as shown in figures 1 and 3, the center of rack beam 321 is provided with
Height adjustment knob 322, the height adjustment knob 322 is fixedly connected with a vertical nozzle mount 323.Vertical nozzle is fixed
It is removably connected with a thrown up-straight nozzle 71 on part 323, therefore easily thrown up-straight nozzle 71 can be dismantled or more
Change.
The set-up mode of height adjustment knob 322, can be with the follow-up specific set-up mode phase of horizontal range governor motion 40
Together, also 10 microns can be accurate to using the principle of micrometer.Height adjustment knob 322 can penetrating to thrown up-straight nozzle 71
Stream clash into before length, namely thrown up-straight nozzle 71 axial height, be adjusted.
As shown in figure 4, above-mentioned rear side 33, preferably isosceles triangle, while ensureing that support 30 is consolidated, can save
Material, low cost.The apex of isosceles triangle is provided with the support height adjusting screw rod 34 being connected with crossbeam 23.By adjusting
Section support height adjusting screw rod 34, can effectively control the axial adjustable height of support 30.
Above-mentioned horizontal range governor motion 40, for long before the impinging jet for adjusting corresponding tilting jet nozzle 72
Degree.
As shown in Fig. 2 horizontal range governor motion 40, including be arranged at two on horizontal underframe 31 can levels or so it is sliding
The sliding block 41 of shifting, and two horizontal displacement adjusting meanss for being used for the horizontal sliding of adjusting slider 41.The front side of each sliding block 41
It is fixedly connected a tilting jet nozzle 72.
Each horizontal displacement adjusting means includes a horizontal brace rod 42 being fixedly connected with sliding block 41, and the level connects
The fixes sleeve 43 and horizontal range that the top of extension bar 42 is disposed with the microdrum 44, built-in nut of built-in accurate screw rod are adjusted
Section knob 45.
By said structure setting after, accurate screw rod, horizontal brace rod 42 and horizontal brace rod 42 connection sliding block 41 with
And the tilting jet nozzle 72 on front side of the sliding block 41 is arranged at, an overall structure will be formed.
Each horizontal displacement adjusting means employs the principle of micrometer, and differential is driven by horizontal range adjusting knob 45
Cylinder 44 rotates；Microdrum 44 drives the accurate screw rod of inside to be rotated relative to the nut being nested in fixes sleeve 43, so that real
Show moving horizontally for precision screw rod.Moving horizontally for accurate screw rod, drives the tilting jet with the integral structure of accurate screw shaped
Nozzle 72 is moved horizontally；So as to length before the impinging jet for adjusting the tilting jet nozzle 72.
In addition, being provided with length scale graticule in fixes sleeve 43.
As a further improvement, by the Precision Machining to accurate screw rod in microdrum 44, such as by 0.5 in accurate screw rod
Millimeter pitch is divided into 50 parts, then the degree of regulation of horizontal displacement adjusting means can reach 10 microns.So as to, degree of regulation is high,
The repeatability and reliability of experiment are high.
Shown as shown in Figure 1, Figure 3 and Figure 4, above-mentioned angle adjusting mechanism 50 has two, is arranged at the level of the rear side of sliding block 41
On support 31, the jet impingement angle of the corresponding tilting jet nozzle 72 of regulation is respectively used to.
As shown in Fig. 2 each angle adjusting mechanism 50, including one in fan-shaped 51, connecting shaft 53 of angle scale,
One piece of installing plate 54 and an angular adjustment knob 52.
The fan angle of each angle scale 51, the jet impingement angle that can be adjusted according to actual needs is adjusted, preferably
60 degree.It is provided with the circular arc periphery of each angle scale 51 by precision machined teeth 511, each angular adjustment knob 52
It is built-in with the accurate thread being meshed with teeth 511.
As a further improvement, angle index line 512 is provided with each angle scale 51, on angular adjustment knob 52
It is provided with differential disk.30 ' angles, by retrofit, are such as divided into 60 parts by the accurate thread in angular adjustment knob 52, then each
The rotation degree of regulation of angle scale 51 can reach 30 ".
One end of above-mentioned connecting shaft 53 is fixedly connected with angle scale 51, and the other end of connecting shaft 53 can be from a corresponding cunning
Passed in block 41 and can be rotated relative to the sliding block 41, one piece of installing plate has been fixedly connected with the every traversing through end of connecting shaft 53
54。
A side-play amount governor motion 60 is fixedly connected with every piece of above-mentioned installing plate 54 and a canted nozzle has been fixed
Part 63.To be detachably connected between each tilting jet nozzle 72 and canted nozzle fixture 63, so as to easily to tilting
Jet nozzle 72 is dismantled and changed.
Each angle adjusting mechanism 50 employs geometry amplification principle, anglec of rotation adjusting knob 52, then angular adjustment
Knob 52 drives angle scale 51 to rotate；Angle scale 51 is fixed on tilting on canted nozzle fixture 63 by the drive of connecting shaft 53
Jet nozzle 72 rotates, so as to change the angle of impinging jet.
The rear side of each sliding block 41 is provided with a spacing blend stop 411, and the spacing blend stop 411 can be used to limiting corresponding tilting
The minimum jet impinging jet angle of nozzle mount 63.In order to increase the adjustable range of angle, when mechanism's design is carried out, allow
15 degree of angles are reserved with vertical direction in each direction of tilting jet nozzle 72.Such as it is designed by spacing blend stop 411, so that
The start index of respective corners scale 51 is defined to 15 degree.When the scale adjustable range of angle scale 51 is 60 degree, that is to say, that two
The angle adjustable extent that skew back puts between the tilting jet of jet nozzle 72 and the thrown up-straight of thrown up-straight nozzle 71 is 15 ~ 75
Degree.
Each above-mentioned side-play amount governor motion 60 includes an offset adjusted screw rod 62 and a side-play amount adjusting knob
61。
Above-mentioned side-play amount adjusting knob 61 fits with the connecting shaft 53 passed from installing plate 54, only rotates.
Accurate internal thread is provided with the inside of side-play amount adjusting knob 61, and is connected with offset adjusted screw rod 62, so as to drive skew to adjust
Moved before and after section screw rod 62.Offset adjusted screw rod 62 is connected with canted nozzle fixture 63, so as to drive tilting jet to spray
Moved before and after mouth 72；Dial markings are provided with the outer rim of side-play amount adjusting knob 61.
Above-mentioned side-play amount governor motion 60, also the ingenious principle that make use of micrometer, continuously can accurately be used for two tiltedly
The regulation of the impinging jet side-play amount of jet nozzle 72 is put, can be made 2 or 3 jet nozzles 70 are located in approximately the same plane and carry out
Impinging jet, it is also possible to make 2 or 3 jet nozzles 70 are clashed into a solid space.
The regulation of impinging jet side-play amount, easy to operate, degree of regulation is high, can also be accurate to 10 microns, the repetition of experiment
Property and reliability are high.
In sum, the application compensate for existing correlation test device and can not realize that what many test parameters continuously adjusted lacks
Fall into, reduce experimentation cost, and the experimental rig of the application is simple to operate, directly perceived, compact conformation, with high reliability and experiment
Precision.
The preferred embodiment of the application described in detail above, but, the application is not limited in above-mentioned implementation method
Detail, in the range of the technology design of the application, various equivalents can be carried out to the technical scheme of the application, this
A little equivalents belong to the protection domain of the application.
Claims (6)
1. a kind of multi-parameter continuously adjustabe type impinging jet atomization experimental rig under open environment, including experiment porch and fixation set
Three jet nozzles being placed in above experiment porch, it is characterised in that：
--- at least provided with a root post and a support that can be up and down slid along column on the experiment porch；
--- the support includes a horizontal underframe and the front side frame with rack beam；
--- three jet nozzles are a thrown up-straight nozzle and two tilting jet nozzles；Wherein, it is described to penetrate vertically
Flow nozzle is fixedly installed on the bottom centre of rack beam；Two tilting jet nozzles are separately positioned on thrown up-straight nozzle
Both sides；
--- horizontal range governor motion is provided with the horizontal underframe, horizontal range governor motion utilizes the original of micrometer
Reason, can be continually used for length before two impinging jets of tilting jet nozzle of regulation；
--- the horizontal range governor motion, including be arranged at two on horizontal underframe can levels or so sliding sliding block,
And two horizontal displacement adjusting meanss for being used for adjusting slider horizontal sliding；Be fixedly connected on front side of each sliding block one it is tilting
Jet nozzle；
Each described horizontal displacement adjusting means includes a horizontal brace rod being fixedly connected with a slide block, the horizontal brace rod
Top be disposed with microdrum, the fixes sleeve of built-in nut and the horizontal range adjusting knob of built-in accurate screw rod；Water
The degree of regulation of prosposition displacement regulating device is 10 microns；
--- two angle adjusting mechanisms, two angular adjustments are additionally provided with the horizontal stand on rear side of two sliding blocks
Mechanism utilizes geometry amplification principle, is respectively used to the jet impingement angle of the corresponding tilting jet nozzle of regulation；
--- each angle adjusting mechanism, including one in fan-shaped angle scale, a connecting shaft and an angular adjustment rotation
Button；
--- the periphery of each angle scale is provided with teeth, and each described angular adjustment knob is built-in with and is meshed with teeth
Accurate thread；The precision of each angle disc spins regulation is 30 "；
--- one end of the every connecting shaft is fixedly connected with angle scale, and the other end of connecting shaft can be from a corresponding sliding block
In pass and can be rotated relative to the sliding block；The traversing through end of the connecting shaft tilting jet nozzle fixed with respective slide front side is consolidated
Fixed connection；
--- in each described sliding block and on front side of it between fixed tilting jet nozzle, side-play amount governor motion is additionally provided with,
Side-play amount governor motion utilizes micrometer principle, can be continually used for two tune of the impinging jet side-play amount of tilting jet nozzle
Section, can make 2 or 3 jet nozzles are located in approximately the same plane and carry out impinging jet, can also make 2 or 3 jet nozzles exist
Clashed into one solid space；Side-play amount governor motion can make the degree of regulation of impinging jet side-play amount reach 10 microns；
--- side-play amount governor motion includes an offset adjusted screw rod and a side-play amount adjusting knob.
2. multi-parameter continuously adjustabe type impinging jet atomization experimental rig under open environment according to claim 1, it is special
Levy and be：The traversing through end of the every connecting shaft is fixedly connected with one piece of installing plate, and the side-play amount governor motion is fixedly connected
On a mounting board.
3. multi-parameter continuously adjustabe type impinging jet atomization experimental rig under open environment according to claim 2, it is special
Levy and be：A spacing blend stop is provided with rear side of each described sliding block.
4. multi-parameter continuously adjustabe type impinging jet atomization experimental rig under open environment according to claim 3, it is special
Levy and be：Angle index line is provided with each described angle scale.
5. multi-parameter continuously adjustabe type impinging jet atomization experimental rig under open environment according to claim 1, it is special
Levy and be：The height adjustment knob for adjusting thrown up-straight nozzle axial height is additionally provided with the rack beam.
6. multi-parameter continuously adjustabe type impinging jet atomization experimental rig under open environment according to claim 1, it is special
Levy and be：The rear side of isosceles triangle is provided with rear side of the horizontal stand, the top that the column has two, column sets
Crossbeam is equipped with, the support height adjusting screw rod being connected with crossbeam is provided with the rear side.
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| CN201510026186.2A CN104596918B (en) | 2015-01-20 | 2015-01-20 | Multiple-parameter continuously adjustable jet flow impact atomization testing device under opening environment |
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Families Citing this family (5)
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| CN108663318A (en) * | 2018-05-17 | 2018-10-16 | 宁波工程学院 | Workpiece coating adhesion detection device based on jet stream |
| CN109974971A (en) * | 2019-04-25 | 2019-07-05 | 扬州大学 | It is a kind of for pressure fluctuation measurement pulsed flood impact jet flow experimental provision and its measurement method |
| CN110285989B (en) * | 2019-06-20 | 2020-09-11 | 中国矿业大学 | High-speed jet impact biological tissue test bed and test method thereof |
| CN112219682A (en) * | 2020-05-29 | 2021-01-15 | 江苏大学 | Sprinkling irrigation device with main nozzle with adjustable height |
| CN113586301A (en) * | 2021-07-27 | 2021-11-02 | 北京工业大学 | Dual-fuel injection device and method capable of adjusting angle and relative position |
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