CN108344652A - A kind of rebounding characteristic test system of subparticle high-speed impact runner wall surface - Google Patents
A kind of rebounding characteristic test system of subparticle high-speed impact runner wall surface Download PDFInfo
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- CN108344652A CN108344652A CN201810060762.9A CN201810060762A CN108344652A CN 108344652 A CN108344652 A CN 108344652A CN 201810060762 A CN201810060762 A CN 201810060762A CN 108344652 A CN108344652 A CN 108344652A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/565—Investigating resistance to wear or abrasion of granular or particulate material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means, e.g. by light scattering, diffraction, holography or imaging
- G01N15/0227—Investigating particle size or size distribution by optical means, e.g. by light scattering, diffraction, holography or imaging using imaging, e.g. a projected image of suspension; using holography
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N2015/0003—Determining electric mobility, velocity profile, average speed or velocity of a plurality of particles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N2015/0294—Particle shape
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Abstract
The invention discloses a kind of rebounding characteristic test systems of subparticle high-speed impact runner wall surface,Target test specimen positioning device is located in test cavity,The target test specimen positioning device includes the target test specimen being fixed in test cavity,Wherein,The outlet of particle incidence system is connected with the entrance at the top of test cavity,The entrance of pumped vacuum systems is connected with the bleeding point of test cavity right side,The leading flank of test cavity is provided with front window,Front window described in optic testing system face,It is provided with rear hatch on the trailing flank of test cavity,Rear hatch described in light-source system face,Entrance at the top of test cavity,Test cavity has the bleeding point of side,Target test specimen described in front window and the equal face of rear hatch,The light that light-source system is sent out is incident on through rear hatch and front window in optic testing system,Adsorption particle liquid is arranged at the bottom of test cavity,The device can synchronize acquisition grain shape,Translation before and after size and shock wall surface and rotary speed.
Description
Technical field
The present invention relates to a kind of particle bounce characteristic test pilot systems, and in particular to a kind of subparticle high-speed impact stream
The rebounding characteristic test system of road wall surface.
Background technology
In chain drive field, the erosion phenomenon of subparticle is seen everywhere, it has also become influences equipment life and operation is pacified
One outstanding problem of full property.After dust and sand grains in air enter aircraft engine, compressor and turbine blade are generated
Serious erosion makes engine life reduce by 80% or more.In thermal power plant, erosion of the oxide platelet particle to inner wall of the pipe
And coal dust and coal ash account for 1/3 or more of boiler tubes cracking accident to pipeline damage caused by the washing away of pipeline outer wall.And with steam
Into steam turbine oxide particle by critical components such as erosion main inlet throttle-stop valve, regulating valve and leaf grating runners, cause valve regulation and control to be lost
Spirit, leaf grating service life reduce, and the actual life of part leaf grating is only the 5%~10% of its projected life.Similarity is unequal to
Enumerate, be related to the every aspect of the national economic development, caused by economic loss it is also very heavy.It is equipped to great Rong with various
The development of amount, high parameter and high integration direction, the extent of injury also will be higher and higher.Therefore, how to mitigate subparticle pair
The destruction of runner wall surface is the current key scientific problems for being badly in need of solving and having broad prospect of application.
During solid particle high-speed impact runner wall surface, particle will be first in the of short duration sliding of wall surface, rolling, then
Wall surface is left with certain ball rebound velocity, and runner itself may occur flexible deformation, plastic deformation, crackle even erosion etc. and break
It is bad.After particle enters near wall region, due to the speed smaller of adjacent wall surface side, the shearing moment that speed difference generates will drive it
Rotation.The rebounding characteristic of particle refers to just the direction of motion, translational velocity and the rotary speed of particle before and after percussion flow road wall surface
Changing rule.Under similarity condition, the energy of particle bounce is more, and the energy for participating in blade passage erosion attack is fewer.Separately
Outside, hit position, speed and the angle that the rebounding characteristic of particle after runner or wall surface hits the particle next time have it is important
It influences.Therefore, the rebounding characteristic of particle is the key that research power part Erosion characteristic of material and its erosion distribution.
Currently, the rebounding characteristic of particles hit runner wall surface leads to common speed recovery coefficient to indicate.For further table
The interaction of particle and target is levied, velocity coeffficient can be analyzed to tangential velocity recovery coefficient eT(β) and normal velocity restorer
Number eN(β), β are particle incidence angles.The model only considered influence of the particle incidence angle to speed recovery coefficient.In subparticle
In high-speed impact chain drive component wall surface real process, the incidence of particle size, shape, target material surface pattern, hardness, particle
The factors such as speed, rotation are all to rebounding characteristic important.It is less than the subparticle group of 0.5mm for diameter, is testing
In it is difficult to ensure that its shape and size unicity, there is also differences for particle speed.Therefore, it is necessary to which synchro measure particle is in runner
Size, shape, speed and the rotation of near wall region.This proposes measuring technology very high requirement, the height used in existing research
The methods of speed photography and LDV are often difficult to be competent at.
In addition, in the existing experimental study in relation to subparticle-wall surface interaction, Pneumatic method acceleration is mostly used greatly
Particle, this is also the most effectual way for obtaining high speed subparticle.But high-speed photography, LDV or PIV no matter are used, is all to survey
Measure particle runner near wall kinetic characteristic, it is difficult to accurately capture particle contact or leave moment of target material surface.This is
Because air-flow is while accelerating particles hit water passage surface, also to after particle bounce velocity magnitude and direction generate it is apparent
It influences.Therefore, the particle bounce characteristic obtained by Pneumatic method includes not only that solid particless-wall surface interacts, and also includes to hit
The point influence that nearby air-flow moves particle.How to eliminate influence of the air-flow to measurement result is also that research subparticle high speed is hit
Hit the key of runner wall surface problem.
Invention content
It is an object of the invention to overcome the above-mentioned prior art, a kind of subparticle high-speed impact runner is provided
The rebounding characteristic test system of wall surface, the device can synchronize flat before and after obtaining grain shape, size and shock wall surface
Shifting and rotary speed.
In order to achieve the above objectives, the rebounding characteristic testing experiment of subparticle high-speed impact runner wall surface of the present invention
System includes test cavity, particle incidence system, target test specimen positioning device, light-source system, pumped vacuum systems, optic testing system
And the synchronous control system for controlling light-source system and optic testing system；
Target test specimen positioning device is located in test cavity, and the target test specimen positioning device includes being fixed in test cavity
Target test specimen, wherein the outlet of particle incidence system is connected with the entrance at the top of test cavity, the entrance of pumped vacuum systems and examination
The bleeding point for testing chamber right side is connected, and the leading flank of test cavity is provided with front window, front window described in optic testing system face
Mouthful, it is provided with rear hatch on the trailing flank of test cavity, rear hatch described in light-source system face, entrance, experiment at the top of test cavity
Target test specimen described in the bleeding point of chamber right side, front window and the equal face of rear hatch, the illumination that light-source system is sent out are mapped to particle,
Optic testing system is set to take the particle, adsorption particle liquid is arranged at the bottom of test cavity.
The target test specimen positioning device further includes that flow apron, specimen sleeve, test specimen pressing plate, specimen sleeve holder and holder are solid
Fixed board, wherein the top of test cavity is fixed in the upper end of flow apron, and the side of flow apron is fixed in the end of bracket fixing plate
The bottom in face, specimen sleeve holder is fixed on by adjusting screw on bracket fixing plate, and specimen sleeve branch is fixed in the side of specimen sleeve
The endoporus at the top of frame, specimen sleeve is L-type structure, and target test specimen is terraced structure, and target test specimen is inserted into specimen sleeve endoporus,
And it is inconsistent with hole end surface in specimen sleeve, test specimen pressing plate is located at the top of specimen sleeve, is compressed target test specimen by test specimen pressing plate
In specimen sleeve endoporus.
Test specimen pressing plate is fixed on the top of specimen sleeve by fixing screws.
Test cavity left side offers adjusting window, adjusts window and is fixed with ring flange, passes through fixing bolt on ring flange
It is connected with blind flange.
The first ejector and the second ejector are respectively arranged in front window and rear hatch, wherein described first draws
It includes optical window fairlead, connecting flange, optical glass, window spacing ring and fixed spiral shell to go out device and the second ejector
Bolt, wherein the optical window fairlead in the first ejector is socketed in front window, the optical window in the second ejector
Fairlead is socketed on rear hatch, and window spacing ring is socketed on the peripheral surface of optical glass, adjusting bolt pass through connecting flange,
Connecting flange, window spacing ring and optical window fairlead are connected by window spacing ring and optical window fairlead, wherein the
Optical glass in one ejector is located between the connecting flange in front window and the first ejector, in the second ejector
Optical glass be located between the connecting flange in rear hatch and the second ejector, optic testing system face first draw dress
Optical glass in setting, the optical glass in the second ejector of light-source system face.
The particle incidence system includes mounting flange, connection bolt, nozzle guard sleeve, fixed thread cutting ferrule, accelerates
Nozzle, funnel and two nozzle locating pieces；
Mounting flange is fixed on by connecting bolt on the top entry of test cavity, and the lower end of nozzle guard sleeve is socketed on
The middle part of mounting flange, fixed thread cutting ferrule and two nozzle locating pieces are socketed in nozzle guard sleeve respectively from top to bottom,
The upper end of accelerating jet is connected with the bottom of funnel, and the lower end of accelerating jet sequentially passes through fixed thread cutting ferrule, two nozzles
The top entry of locating piece, mounting flange and test cavity is inserted in test cavity, and the lower end face target test specimen of accelerating jet.
The light-source system includes four pulse lasers and light diffuser, wherein the laser warp that four pulse lasers are sent out
It is incident in rear hatch after light diffuser, synchronous control system is connected with the control terminal of four pulse lasers.
The optic testing system includes long range microscope, spectroscope, the first CCD and the 2nd CCD, wherein over long distances
Microscope matches the transients enlargement picture for obtaining particle field, synchronous control system and the first CCD with the first CCD and the 2nd CCD
Control terminal and the control terminal of the 2nd CCD be connected.
Pumped vacuum systems includes exhaust tube, vacuum valve and vacuum pump, one end of exhaust tube and the bleeding point phase on test cavity
Connection, the other end of exhaust tube are connected through vacuum valve with vacuum pump, and pressure gauge is provided on exhaust tube.
The outlet at bottom of test cavity is communicated with drain pipe, wherein control ball valve is provided on drain pipe.
The invention has the advantages that：
The rebounding characteristic test system of subparticle high-speed impact runner wall surface of the present invention is in concrete operations
When, particle strikes after the acceleration of particle incidence system on target test specimen, in the process, light is controlled by synchronous control system
Source system and optic testing system work at the same time, and the light that light-source system is sent out is irradiated to across rear hatch on particle, is passed through simultaneously
The process that optic testing system shooting particle is incident, strikes on target test specimen and reflects, then according to optic testing system
Translation before and after shooting period acquisition grain shape, size and shock wall surface and rotary speed, simple in structure, easy to operate, energy
Enough accurate tests realized to particles hit bounce-back characteristic under each occasion.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the left view of the present invention；
Fig. 3 is the structural schematic diagram of target test specimen positioning device in the present invention.
Wherein, 1 it is funnel, 2 be accelerating jet, 3 be nozzle guard sleeve, 4 be nozzle locating piece, 5 is fixed thread card
Set, 6 be mounting flange, 7 be connect bolt, 8 be the first sealing ring, 9 be target test specimen, 10 be specimen sleeve, 11 be test specimen pressing plate,
12 it is specimen sleeve holder, 13 be bracket fixing plate, 14 be adjusting screw, 15 be test cavity, 16 be blind flange, 17 is the second sealing
Circle, 18 be fixing bolt, 19 be adsorption particle liquid, 20 be drain pipe, 21 in order to control ball valve, 22 be flow apron, 23 be
Optical window fairlead, 24 be connecting flange, 25 be optical glass, 26 be window spacing ring, 27 be third sealing ring, 28 be tune
Section bolt, 29 be exhaust tube, 30 be pressure gauge, 31 be vacuum valve, 32 be vacuum pump, 33 be four pulse lasers, 34 be light expansion
Dissipate device, 35 be long range microscope, 36 be spectroscope, 37 be the first CCD, 38 be the 2nd CCD, 39 be synchronous control system.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings：
Currently, since the rebounding characteristic to subparticle high-speed impact wall surface lacks corresponding means of testing, subparticle
Motor behavior near wall region and its erosion forecast of distribution to power part are restricted, and chain drive critical component is caused to rush
It is very severe that erosion destroys situation.Applicant according to for many years turbomachine and Dual-Phrase Distribution of Gas olid field practice and research and development experience,
The characteristics of motion based on subparticle in high-temperature high-pressure air flow reduces air-flow to solid using high vacuum acceleration test system
The influence of grain-wall surface interaction, and utilize the particle multi-parameter synchro measure based on shade long range micro-imaging technique
Method is realized near wall region synchro measure particle geometric parameter and hits the front and back translation of rebound and rotary speed, is accurate
Rebound behavior after prediction subparticle high-speed impact wall surface is laid a good foundation.
With reference to figure 1, Fig. 2 and Fig. 3, the rebounding characteristic test examination of subparticle high-speed impact runner wall surface of the present invention
Check system includes test cavity 15, particle incidence system, target test specimen positioning device, light-source system, pumped vacuum systems, optic test
System and synchronous control system 39 for controlling light-source system and optic testing system；Target test specimen positioning device is located at examination
It tests in chamber 15, the target test specimen positioning device includes the target test specimen 9 being fixed in test cavity 15, wherein particle incidence system
The outlet of system is connected with the entrance at 15 top of test cavity, the bleeding point phase of the entrance and 15 right side of test cavity of pumped vacuum systems
Connection, the leading flank of test cavity 15 are provided with front window, front window described in optic testing system face, the trailing flank of test cavity 15
On be provided with rear hatch, rear hatch described in light-source system face, the pumping of the entrance, 15 right side of test cavity at 15 top of test cavity
Target test specimen 9 described in mouth, front window and the equal face of rear hatch, the illumination that light-source system is sent out are mapped to particle, make optic test system
System can take the particle, and adsorption particle liquid 19 is arranged at the bottom of test cavity 15.
The target test specimen positioning device further includes flow apron 22, specimen sleeve 10, test specimen pressing plate 11, specimen sleeve holder 12
And bracket fixing plate 13, wherein the top of test cavity 15 is fixed in the upper end of flow apron 22, and the end of bracket fixing plate 13 is solid
Due to the side of flow apron 22, the bottom of specimen sleeve holder 12 is fixed on by adjusting screw 14 on bracket fixing plate 13, examination
The top of specimen sleeve holder 12 is fixed in the side of part set 10, and the endoporus of specimen sleeve 10 is L-type structure, and target test specimen 9 is step
Shape structure, target test specimen 9 is inserted into 10 endoporus of specimen sleeve, and is contradicted with hole end surface in specimen sleeve 10, and test specimen pressing plate 11 is located at examination
Target test specimen 9, is pressed in 10 endoporus of specimen sleeve by the top of part set 10 by test specimen pressing plate 11.
15 left side of test cavity offers adjusting window, adjusts window and is fixed with ring flange, passes through fixed spiral shell on ring flange
Bolt 18 is connected with blind flange 16；The first ejector and the second ejector are respectively arranged in front window and rear hatch, wherein
First ejector and the second ejector include optical window fairlead 23, connecting flange 24, optical glass 25, window
Mouth spacing ring 26 and fixing bolt 18, wherein the optical window fairlead 23 in the first ejector is socketed in front window, the
Optical window fairlead 23 in two ejectors is socketed on rear hatch, and window spacing ring 26 is socketed on the outer of optical glass 25
On circumferential surface, adjusting bolt 28 passes through connecting flange 24, window spacing ring 26 and optical window fairlead 23 by connecting flange 24, window
Mouth spacing ring 26 and optical window fairlead 23 are connected, wherein the optical glass 25 in the first ejector is located at front window
Between the connecting flange 24 in the first ejector, the optical glass 25 in the second ejector is located at rear hatch and draws with second
Go out between the connecting flange 24 in device, the optical glass 25 in the first ejector of optic testing system face, light-source system
Optical glass 25 in the second ejector of face.
The particle incidence system include mounting flange 6, connection bolt 7, nozzle guard sleeve 3, fixed thread cutting ferrule 5,
Accelerating jet 2, funnel 1 and two nozzle locating pieces 4；The top that mounting flange 6 is fixed on test cavity 15 by connecting bolt 7 enters
On mouth, the lower end of nozzle guard sleeve 3 is socketed on the middle part of mounting flange 6, fixed thread cutting ferrule 5 and two nozzle locating pieces 4
It is socketed on respectively in nozzle guard sleeve 3 from top to bottom, the upper end of accelerating jet 2 is connected with the bottom of funnel 1, accelerating jet
The top entry that 2 lower end sequentially passes through fixed thread cutting ferrule 5, two nozzle locating pieces 4, mounting flange 6 and test cavity 15 is inserted
Enter in test cavity 15, and the lower end face target test specimen 9 of accelerating jet 2.
The light-source system includes four pulse lasers 33 and light diffuser 34, wherein what four pulse lasers 33 were sent out
Laser is incident on after light diffuser 34 in rear hatch, and synchronous control system 39 is connected with the control terminal of four pulse lasers 33
It connects.
The optic testing system includes long range microscope 35, spectroscope 36, the first CCD37 and the 2nd CCD38,
In, the light that light-source system is sent out illuminates the moment of particles hit target wall surface, long range microscopes the first CCD and second
CCD sync pulse jammings obtain particle field transients enlargement picture, the control terminal and second of synchronous control system 39 and the first CCD37
The control terminal of CCD38 is connected.
Pumped vacuum systems includes exhaust tube 29, vacuum valve 31 and vacuum pump 32, one end of exhaust tube 29 on test cavity 15
Bleeding point be connected, the other end of exhaust tube 29 is connected through vacuum valve 31 with vacuum pump 32, and pressure is provided on exhaust tube 29
Power table 30.
The outlet at bottom of test cavity 15 is communicated with drain pipe 20, wherein control ball valve 21 is provided on drain pipe 20.
The first sealing ring 8 is provided between mounting flange 6 and the top entry of test cavity 15；Ring flange and blind flange 16 it
Between be provided with the second sealing ring 17；Third sealing ring is provided between optical glass 25 and connecting flange 24 and window spacing ring 26
27, the welding integrated with the upper end of accelerating jet 2 of funnel 1.
The present invention specific operation process be：Blind flange 16 is first opened, adjusting bolt 28 is unclamped, according to target test specimen 9
The corresponding specimen sleeve 10 of angle Selection and specimen sleeve holder 12, then blind flange 16 is fixed on ring flange, then pass through vacuum
32 pairs of test cavities 15 of pump vacuumize, then sow particle at funnel 1, which hits after being accelerated in accelerating jet 2
It hits on target test specimen 9, in the process, synchronous control system 39 controls four pulse lasers 33 and the first CCD37 and second
CCD38 is worked at the same time, and the laser that four pulse lasers 33 are sent out is mapped to across rear hatch on particle after the diffusion of light diffuser 34,
Long range microscope 35 is coordinated to take pictures the particles hit process that rebounds by the first CCD37 and the 2nd CCD38, then to the
The photo of one CCD37 and the 2nd CCD38 shootings carries out image reconstruction and cross correlation process, you can obtains particle and is hitting target examination
Translational velocity, rotary speed, rotation angle and orientation before and after 9 wall surface of part；In addition, particle is anti-in 9 surface impacts of target test specimen
It after bullet, strikes under the swabbing action of vacuum pump 32 on flow apron 22, is finally absorbed by granular absorption liquid 19, wherein
Air-flow is taken away by vacuum pump 32.
Specimen sleeve 10 and specimen sleeve holder 12 can be replaced, by unclamping adjusting screw 14 to change particles hit simultaneously
Incident angle onto target test specimen 9.
The vacuum degree in test cavity 15 can be adjusted, by adjusting vacuum valve 31 to adjust particles hit to target simultaneously
Incidence rate on test specimen 9.
Claims (10)
1. a kind of rebounding characteristic test system of subparticle high-speed impact runner wall surface, which is characterized in that including experiment
It chamber (15), particle incidence system, target test specimen positioning device, light-source system, pumped vacuum systems, optic testing system and is used for
Control the synchronous control system (39) of light-source system and optic testing system；
Target test specimen positioning device is located in test cavity (15), and the target test specimen positioning device includes being fixed on test cavity (15)
Interior target test specimen (9), wherein the outlet of particle incidence system is connected with the entrance at the top of test cavity (15), vacuumizes and is
The entrance of system is connected with the bleeding point of test cavity (15) right side, and the leading flank of test cavity (15) is provided with front window, optics
Front window described in test system face, is provided with rear hatch on the trailing flank of test cavity (15), rear window described in light-source system face
Mouthful, target described in the bleeding point of entrance, test cavity (15) right side at the top of test cavity (15), front window and the equal face of rear hatch
Test specimen (9), the illumination that light-source system is sent out are mapped to particle, and optic testing system is enable to take the particle, test cavity
(15) adsorption particle liquid (19) is arranged at bottom.
2. the rebounding characteristic test system of subparticle high-speed impact runner wall surface according to claim 1, special
Sign is that the target test specimen positioning device further includes flow apron (22), specimen sleeve (10), test specimen pressing plate (11), specimen sleeve
Holder (12) and bracket fixing plate (13), wherein the top of test cavity (15) is fixed in the upper end of flow apron (22), and holder is solid
The side of flow apron (22) is fixed in the end of fixed board (13), and the bottom of specimen sleeve holder (12) is solid by adjusting screw (14)
Due on bracket fixing plate (13), the top of specimen sleeve holder (12) is fixed in the side of specimen sleeve (10), specimen sleeve (10)
Endoporus is L-type structure, and target test specimen (9) is terraced structure, and target test specimen (9) is inserted into the endoporus of specimen sleeve (10), and with
The end face of specimen sleeve (10) endoporus contacts, and test specimen pressing plate (11) is located at the top of specimen sleeve (10), will by test specimen pressing plate (11)
Target test specimen (9) is pressed in the endoporus of specimen sleeve (10).
3. the rebounding characteristic test system of subparticle high-speed impact runner wall surface according to claim 1, special
Sign is that test specimen pressing plate (11) is fixed on the top of specimen sleeve (10) by fixing screws.
4. the rebounding characteristic test system of subparticle high-speed impact runner wall surface according to claim 1, special
Sign is that test cavity (15) left side offers adjusting window, adjusts window and is fixed with ring flange, passes through fixed spiral shell on ring flange
Bolt (18) is connected with blind flange (16).
5. the rebounding characteristic test system of subparticle high-speed impact runner wall surface according to claim 1, special
Sign is, the first ejector and the second ejector are respectively arranged in front window and rear hatch, wherein described first draws
Device and the second ejector include optical window fairlead (23), connecting flange (24), optical glass (25), window limit
Ring (26) and fixing bolt (18), wherein the optical window fairlead (23) in the first ejector is socketed in front window, the
Optical window fairlead (23) in two ejectors is socketed on rear hatch, and window spacing ring (26) is socketed on optical glass
(25) on peripheral surface, adjusting bolt (28) passes through connecting flange (24), window spacing ring (26) and optical window fairlead
(23) connecting flange (24), window spacing ring (26) and optical window fairlead (23) are connected, wherein the first ejector
In optical glass (25) be located between the connecting flange (24) in front window and the first ejector, in the second ejector
Optical glass (25) is located between the connecting flange (24) in rear hatch and the second ejector, optic testing system face first
Optical glass (25) in ejector, the optical glass (25) in the second ejector of light-source system face.
6. the rebounding characteristic test system of subparticle high-speed impact runner wall surface according to claim 1, special
Sign is that the particle incidence system includes mounting flange (6), connection bolt (7), nozzle guard sleeve (3), fixed thread card
Cover (5), accelerating jet (2), funnel (1) and two nozzle locating pieces (4)；
Mounting flange (6) is fixed on by connecting bolt (7) on the top entry of test cavity (15), nozzle guard sleeve (3)
Lower end is socketed on the middle part of mounting flange (6), and fixed thread cutting ferrule (5) and two nozzle locating pieces (4) cover respectively from top to bottom
It is connected in nozzle guard sleeve (3), the upper end of accelerating jet (2) is connected with the bottom of funnel (1), under accelerating jet (2)
End sequentially passes through the top entry of fixed thread cutting ferrule (5), two nozzle locating pieces (4), mounting flange (6) and test cavity (15)
It is inserted in test cavity (15), and the lower end face target test specimen (9) of accelerating jet (2).
7. the rebounding characteristic test system of subparticle high-speed impact runner wall surface according to claim 1, special
Sign is that the light-source system includes four pulse lasers (33) and light diffuser (34), wherein four pulse lasers (33) are sent out
The laser gone out is incident on after light diffuser (34) in rear hatch, the control of synchronous control system (39) and four pulse lasers (33)
End processed is connected.
8. the rebounding characteristic test system of subparticle high-speed impact runner wall surface according to claim 1, special
Sign is that the optic testing system includes long range microscope (35), spectroscope (36), the first CCD (37) and the 2nd CCD
(38), wherein the transient state that long range microscope (35) matches acquisition particle field with the first CCD (37) and the 2nd CCD (38) is put
Big image, synchronous control system (39) are connected with the control terminal of the control terminal of the first CCD (37) and the 2nd CCD (38).
9. the rebounding characteristic test system of subparticle high-speed impact runner wall surface according to claim 1, special
Sign is, pumped vacuum systems includes exhaust tube (29), vacuum valve (31) and vacuum pump (32), one end of exhaust tube (29) and experiment
Bleeding point on chamber (15) is connected, and the other end of exhaust tube (29) is connected through vacuum valve (31) with vacuum pump (32), pumping
It is provided with pressure gauge (30) on pipe (29).
10. the rebounding characteristic test system of subparticle high-speed impact runner wall surface according to claim 1, special
Sign is that the outlet at bottom of test cavity (15) is communicated with drain pipe (20), wherein drain pipe is provided with control ball valve on (20)
(21)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810060762.9A CN108344652B (en) | 2018-01-22 | 2018-01-22 | Rebound property test system for fine particles impacting flow channel wall surface at high speed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810060762.9A CN108344652B (en) | 2018-01-22 | 2018-01-22 | Rebound property test system for fine particles impacting flow channel wall surface at high speed |
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| CN108344652A true CN108344652A (en) | 2018-07-31 |
| CN108344652B CN108344652B (en) | 2021-01-26 |
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| CN109765151A (en) * | 2019-03-06 | 2019-05-17 | 西安热工研究院有限公司 | A kind of combustion gas turbine stator blade runner subparticle deposition and heat transfer characteristic test system |
| CN110930835A (en) * | 2019-12-26 | 2020-03-27 | 哈尔滨工程大学 | PIV teaching test device |
| CN111044401A (en) * | 2019-12-28 | 2020-04-21 | 中国人民解放军63919部队 | Portable dust abrasion testing device with vacuum chamber |
| CN111707586A (en) * | 2020-06-28 | 2020-09-25 | 中国石油大学(北京) | Vacuum experiment system for liquid drop impacting high-speed rotating wall surface |
| CN112257312A (en) * | 2020-10-19 | 2021-01-22 | 太原科技大学 | Turbine blade material micro flaky particle group erosion model parametric modeling method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321899A (en) * | 2005-10-31 | 2008-12-10 | 普林斯顿大学理事会 | Electrohydrodynamic printing and manufacturing |
| CN101961582A (en) * | 2010-10-19 | 2011-02-02 | 北京市劳动保护科学研究所 | Collider used for removing large-particle aerosol |
| CN104198315A (en) * | 2014-09-18 | 2014-12-10 | 中国特种设备检测研究院 | Erosion test system |
| CN104297252A (en) * | 2014-09-23 | 2015-01-21 | 东南大学 | Fuel particle hot collision recovery coefficient measurement device and measurement method |
| CN104596874A (en) * | 2015-01-22 | 2015-05-06 | 中国人民解放军空军工程大学航空航天工程学院 | Multistage rotation dust washout testing device for aviation engine blade |
| CN104749073A (en) * | 2015-04-02 | 2015-07-01 | 东南大学 | Device and method for testing mechanical strength of particles |
| CN106226031A (en) * | 2016-09-11 | 2016-12-14 | 浙江理工大学 | The experimental provision of particle-wall collision experiment in resisting medium |
| CN106526225A (en) * | 2016-11-09 | 2017-03-22 | 哈尔滨工程大学 | Single-frame particle imaging tachymeter suitable for high-speed flow filed and speed measurement method |
| CN107121264A (en) * | 2017-06-20 | 2017-09-01 | 大连理工大学 | Experimental system and experimental method that a kind of controllable micron particles of humiture are collided with different surfaces |
| CN107144500A (en) * | 2017-05-15 | 2017-09-08 | 浙江工业大学 | A kind of Loose Bodies collision distribution and collision recovery coefficient measurement apparatus and measuring method |
-
2018
- 2018-01-22 CN CN201810060762.9A patent/CN108344652B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321899A (en) * | 2005-10-31 | 2008-12-10 | 普林斯顿大学理事会 | Electrohydrodynamic printing and manufacturing |
| CN101961582A (en) * | 2010-10-19 | 2011-02-02 | 北京市劳动保护科学研究所 | Collider used for removing large-particle aerosol |
| CN104198315A (en) * | 2014-09-18 | 2014-12-10 | 中国特种设备检测研究院 | Erosion test system |
| CN104297252A (en) * | 2014-09-23 | 2015-01-21 | 东南大学 | Fuel particle hot collision recovery coefficient measurement device and measurement method |
| CN104596874A (en) * | 2015-01-22 | 2015-05-06 | 中国人民解放军空军工程大学航空航天工程学院 | Multistage rotation dust washout testing device for aviation engine blade |
| CN104749073A (en) * | 2015-04-02 | 2015-07-01 | 东南大学 | Device and method for testing mechanical strength of particles |
| CN106226031A (en) * | 2016-09-11 | 2016-12-14 | 浙江理工大学 | The experimental provision of particle-wall collision experiment in resisting medium |
| CN106526225A (en) * | 2016-11-09 | 2017-03-22 | 哈尔滨工程大学 | Single-frame particle imaging tachymeter suitable for high-speed flow filed and speed measurement method |
| CN107144500A (en) * | 2017-05-15 | 2017-09-08 | 浙江工业大学 | A kind of Loose Bodies collision distribution and collision recovery coefficient measurement apparatus and measuring method |
| CN107121264A (en) * | 2017-06-20 | 2017-09-01 | 大连理工大学 | Experimental system and experimental method that a kind of controllable micron particles of humiture are collided with different surfaces |
Non-Patent Citations (1)
| Title |
|---|
| SVEN DRÜCKER, ET AL.: "Development of an Experimental Setup for the Measurement of the Coefficient of Restitution under Vacuum Conditions", 《JOURNAL OF VISUALIZED EXPERIMENTS》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765151A (en) * | 2019-03-06 | 2019-05-17 | 西安热工研究院有限公司 | A kind of combustion gas turbine stator blade runner subparticle deposition and heat transfer characteristic test system |
| CN109765151B (en) * | 2019-03-06 | 2024-01-23 | 西安热工研究院有限公司 | Gas turbine stationary blade runner fine particle deposition and heat exchange characteristic test system |
| CN110930835A (en) * | 2019-12-26 | 2020-03-27 | 哈尔滨工程大学 | PIV teaching test device |
| CN111044401A (en) * | 2019-12-28 | 2020-04-21 | 中国人民解放军63919部队 | Portable dust abrasion testing device with vacuum chamber |
| CN111707586A (en) * | 2020-06-28 | 2020-09-25 | 中国石油大学(北京) | Vacuum experiment system for liquid drop impacting high-speed rotating wall surface |
| CN112257312A (en) * | 2020-10-19 | 2021-01-22 | 太原科技大学 | Turbine blade material micro flaky particle group erosion model parametric modeling method |
| CN112257312B (en) * | 2020-10-19 | 2023-07-14 | 太原科技大学 | Parameterized modeling method for erosion model of fine flaky particle group of turbine blade material |
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