CN108318387A - A kind of experimental provision of micron particles under vacuum and different surfaces collision - Google Patents
A kind of experimental provision of micron particles under vacuum and different surfaces collision Download PDFInfo
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- CN108318387A CN108318387A CN201810038334.6A CN201810038334A CN108318387A CN 108318387 A CN108318387 A CN 108318387A CN 201810038334 A CN201810038334 A CN 201810038334A CN 108318387 A CN108318387 A CN 108318387A
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- 239000002245 particle Substances 0.000 title claims abstract description 47
- 238000004088 simulation Methods 0.000 claims abstract description 18
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000005411 Van der Waals force Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229960000074 biopharmaceutical Drugs 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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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Abstract
A kind of experimental provision of micron particles under vacuum and different surfaces collision, belongs to fine grained collision experiment technical field.The vacuum experiment cabin of the experimental provision uses transparent configuration, particle feed system to be arranged on upper holder, and simulation platform is arranged by firm banking on lower fixing bracket.Particle feed system includes sequentially connected dispenser, electrical ball valve, inner and outer tubes, and inner tube is inserted into outer tube and is fixed with fastener, and outer tube is fixed on upper holder.High-speed camera, the upper plane of simulation platform and light source setting are point-blank.The experimental provision is simple in structure, achievable micron particles hit unlike material platform under vacuum, in the case of realizing vacuum, eliminating external influence factor, micron particles are carried out to work with the experimental study that different surfaces are hit, the force analysis and energy loss situation that particles collision contact process can effectively be analyzed, effective support is provided for theoretical calculation.
Description
Technical field
The present invention relates to the experimental provisions of a kind of micron particles under vacuum and different surfaces collision, belong to thin
Grain collision experiment technical field.
Background technology
Fine grained is the important substance in environment, is widely present among nature and mankind's activity.Fine grained engineering is ground
Study carefully and is widely used in the every field such as food manufacturing, bio-pharmaceuticals, construction material.Fine grained is different from the main spy of big particle
Sign is the decrease of particle gravity and the inertia effect, is easier to be influenced by extraneous factor in flow process, particle-macroscopic view object
The opposite enhancing acted between body, pellet-pellet and between particle-external world's physical field, is derived from the adhesion strength of intermolecular Van der Waals force
Being become with its inherency leads to fine grained feature physical process and phenomenon（Including adherency, reunion and deposition etc.）It is most basic because
Element.
Influence factor of the fine grained in flowing and collision process is described above, to eliminate extraneous factor to particles collision
The influence of process, such as the influence of air-flow, temperature, humidity to collision process disclose the physical essence of making contact process, from table
The force-displacement relationship formula to interact between sign microparticle is set out, and interaction mechanism between fine grained is studied, and is designed under vacuum condition
Micron particles and the experimental provision of different surfaces collision are the analysis necessary laboratory facilities of particles collision Contact Dynamics.
Invention content
For problems of the prior art, the present invention provides a kind of micron particles and different tables under vacuum
The experimental provision of face collision.The experimental provision is answered simple in structure, it can be achieved that micron particles hit different materials under vacuum
Matter platform carries out the experiment that micron particles are hit with different surfaces in the case of realizing vacuum, eliminating external influence factor
Research work can effectively analyze the force analysis and energy loss situation of particles collision contact process, be provided for theoretical calculation
Effective support.
The technical solution adopted by the present invention is：A kind of experiment dress of micron particles under vacuum and different surfaces collision
It sets, it includes power supply, vacuum experiment cabin and high speed video system, it further includes the particle supply system being arranged in vacuum experiment cabin
System and simulation platform, the vacuum experiment cabin use transparent configuration, set that there are one connected using multiple pillars in vacuum experiment cabin
Upper holder support bracket fastened fixing bracket under, vacuum experiment cabin inner cavity pass through pipeline and connect vacuum pump and pressure vacuum gauge；
The particle feed system is arranged on upper holder, and simulation platform is arranged by firm banking on lower fixing bracket；It is described
Particle feed system includes sequentially connected dispenser, electrical ball valve, inner and outer tubes, and inner tube is inserted into outer tube and uses fastener
Fixed, outer tube is fixed on upper holder；The high speed video system includes the high-speed camera being arranged in vacuum experiment out of my cabin
With the light source in computer and vacuum experiment cabin, electrical ball valve and light source in power electric connection vacuum experiment cabin；It is described
High-speed camera, the upper plane of simulation platform and light source setting are point-blank.
The outer tube is located at using a nut above upper holder, another nut is located at below upper holder outer tube
It is fixed on upper holder.
Said inner tube adjusts between electrical ball valve and simulation platform micron particles true using the length for being inserted into outer tube
Landing distance under empty condition.
The beneficial effects of the invention are as follows：The experimental provision of this micron particles under vacuum and different surfaces collision
Including power supply, vacuum experiment cabin, high speed video system, particle feed system and simulation platform, vacuum experiment cabin uses transparent knot
Structure, particle feed system are arranged on upper holder, and simulation platform is arranged by firm banking on lower fixing bracket.Particle supplies
Include sequentially connected dispenser, electrical ball valve, inner and outer tubes to system, inner tube is inserted into outer tube and is fixed with fastener,
Outer tube is fixed on upper holder.High-speed camera, the upper plane of simulation platform and light source setting are point-blank.The experiment
Apparatus structure is simple, it can be achieved that micron particles hit unlike material platform under vacuum, outside realizing vacuum, eliminating
In the case of boundary's influence factor, carries out micron particles and work with the experimental study that different surfaces are hit, can effectively analyze particle
The force analysis and energy loss situation of making contact process, effective support is provided for theoretical calculation.
Description of the drawings
Fig. 1 is a kind of experimental provision structural schematic diagram of micron particles under vacuum and different surfaces collision.
In figure：1, dispenser, 2, electrical ball valve, 3, inner tube, 4, fastener, 5, outer tube, 6a upper holders, 6b, pillar,
6c, simulation platform, 6d, firm banking, 6e, lower fixing bracket, 7, rubber stopper, 8, power supply, 9, vacuum experiment cabin, 10, vacuum pump,
11, light source, 12, high-speed camera, 13, computer, 14, pressure vacuum gauge.
Specific implementation mode
Fig. 1 shows a kind of experimental provision structure chart of micron particles under vacuum and different surfaces collision.Figure
In, which includes power supply 8, vacuum experiment cabin 9, high speed video system, particle feed system and simulation platform 6c.Vacuum
Laboratory Module 9 uses transparent configuration, sets that there are one use four pillar 6b connection upper holder 6a and lower fixation in vacuum experiment cabin 9
The fixing bracket of holder 6e, 9 inner cavity of vacuum experiment cabin connect vacuum pump 10 and pressure vacuum gauge 14 by pipeline.Particle supply system
System is arranged on upper holder 6a, and simulation platform 6c is arranged by firm banking 6d on lower fixing bracket 6e.Particle supply system
System includes sequentially connected dispenser 1, electrical ball valve 2, inner tube 3 and outer tube 5, and inner tube 3 is inserted into outer tube 5 and solid with fastener 4
Fixed, outer tube 5 is fixed on upper holder 6a.High speed video system includes the high-speed camera 12 being arranged outside vacuum experiment cabin 9
With the light source 11 in computer 13 and vacuum experiment cabin 9.Power supply 8 is electrically connected electrical ball valve 2 and light source in vacuum experiment cabin 9
11.High-speed camera 12, the upper plane of simulation platform 6c and the setting of light source 11 are point-blank.
Outer tube 5 is located at using a nut above upper holder 6a, another nut is located at below upper holder 6a outer
Pipe 5 is fixed on upper holder 6a.Inner tube 3 is adjusted using the length for being inserted into outer tube 5 between electrical ball valve 2 and simulation platform 6c
The landing distance of micron particles under vacuum.
Using above-mentioned technical solution, inner tube, which is inserted into outer tube, becomes scalable stainless steel sleeve pipe, passes through adjusting sleeve pipe
Height can get the different incidence rates of micron particles；The bore of electrical ball valve is 5mm, and micron particles are controlled by switch
Incidence.Cuboid made of organic glass of the vacuum experiment cabin with 5mm thickness；Experimental bench fixing bracket is made using stainless steel,
It is used to support particle feed system；Vacuum pump and pressure vacuum gauge are used to adjust and control the vacuum degree in vacuum experiment cabin, vacuum
The end vacuum that pumping takes is 20pa.
The high speed video system is made of point light source, high-speed camera, fixed-focus microlens, computer, by video camera
It is connected with computer, to store shooting video, it is 2 μm or more particles hit tablets that high speed video system, which can be clearly captured grain size,
Process.
Claims (3)
1. the experimental provision of a kind of micron particles under vacuum and different surfaces collision, it includes power supply（8）, vacuum it is real
Hatch checking（9）And high speed video system, it is characterized in that：It further includes being arranged in vacuum experiment cabin（9）In particle feed system and
Simulation platform（6c）, the vacuum experiment cabin（9）Using transparent configuration, vacuum experiment cabin（9）Multiple are used there are one inside setting
Column（6b）Connect upper holder（6a）With lower fixing bracket（6e）Fixing bracket, vacuum experiment cabin（9）Inner cavity is connected by pipeline
Connect vacuum pump（10）And pressure vacuum gauge（14）；The particle feed system is arranged in upper holder（6a）On, simulation platform
（6c）Pass through firm banking（6d）It is arranged in lower fixing bracket（6e）On；The particle feed system includes sequentially connected feed
Device（1）, electrical ball valve（2）, inner tube（3）And outer tube（5）, inner tube（3）It is inserted into outer tube（5）In and use fastener（4）It is fixed, outer tube
（5）It is fixed on upper holder（6a）On；The high speed video system includes to be arranged in vacuum experiment cabin（9）Outer high-speed camera
（12）And computer（13）And vacuum experiment cabin（9）In light source（11）, the power supply（8）It is electrically connected vacuum experiment cabin（9）In
Electrical ball valve（2）And light source（11）；The high-speed camera（12）, simulation platform（6c）Upper plane and light source（11）Setting
Point-blank.
2. the experimental provision of a kind of micron particles under vacuum according to claim 1 and different surfaces collision,
It is characterized in that：The outer tube（5）Upper holder is located at using a nut（6a）Top, another nut are located at upper holder
（6a）Lower section is outer tube（5）It is fixed on upper holder（6a）On.
3. the experimental provision of a kind of micron particles under vacuum according to claim 1 and different surfaces collision,
It is characterized in that：Said inner tube（3）Using insertion outer tube（5）Length adjust electrical ball valve（2）With simulation platform（6c）Between
The landing distance of micron particles under vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810038334.6A CN108318387A (en) | 2018-01-13 | 2018-01-13 | A kind of experimental provision of micron particles under vacuum and different surfaces collision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810038334.6A CN108318387A (en) | 2018-01-13 | 2018-01-13 | A kind of experimental provision of micron particles under vacuum and different surfaces collision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108318387A true CN108318387A (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810038334.6A Pending CN108318387A (en) | 2018-01-13 | 2018-01-13 | A kind of experimental provision of micron particles under vacuum and different surfaces collision |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633293A (en) * | 2018-12-25 | 2019-04-16 | 东南大学 | A kind of device and method that particles collision electrification is measured according to particle motion trajectory |
| CN110132534A (en) * | 2019-05-09 | 2019-08-16 | 青岛科技大学 | Particle nonlinearities collide force measuring system in a kind of liquid phase environment |
| CN110702353A (en) * | 2019-10-11 | 2020-01-17 | 西北工业大学 | Submillimeter-level particle generating device |
| CN111157407A (en) * | 2019-12-26 | 2020-05-15 | 清华大学 | System for measuring critical adhesion speed and coefficient of restitution of micron particles against wall |
| CN111579208A (en) * | 2020-05-16 | 2020-08-25 | 大连理工大学 | Experimental device for pressure-adjustable micron-sized particles collide with different surfaces |
| CN114397231A (en) * | 2022-01-21 | 2022-04-26 | 中国矿业大学 | Visual test device and method for adhesion and desorption of wet particles in gas-solid two-phase flow |
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| CN201532324U (en) * | 2009-09-02 | 2010-07-21 | 中国原子能科学研究院 | Apparatus for recovering particles with vacuum collision method |
| CN202757866U (en) * | 2012-07-25 | 2013-02-27 | 上海华力微电子有限公司 | Adjustable sampling head foundation and particle monitoring instrument comprising same |
| CN203432881U (en) * | 2013-06-27 | 2014-02-12 | 成都科创佳思科技有限公司 | Environment monitoring device |
| KR101698717B1 (en) * | 2016-02-17 | 2017-01-20 | 한국기계연구원 | Apparatus for processing an object |
| 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 |
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2018
- 2018-01-13 CN CN201810038334.6A patent/CN108318387A/en active Pending
Patent Citations (5)
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| CN201532324U (en) * | 2009-09-02 | 2010-07-21 | 中国原子能科学研究院 | Apparatus for recovering particles with vacuum collision method |
| CN202757866U (en) * | 2012-07-25 | 2013-02-27 | 上海华力微电子有限公司 | Adjustable sampling head foundation and particle monitoring instrument comprising same |
| CN203432881U (en) * | 2013-06-27 | 2014-02-12 | 成都科创佳思科技有限公司 | Environment monitoring device |
| KR101698717B1 (en) * | 2016-02-17 | 2017-01-20 | 한국기계연구원 | Apparatus for processing an object |
| 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 |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633293A (en) * | 2018-12-25 | 2019-04-16 | 东南大学 | A kind of device and method that particles collision electrification is measured according to particle motion trajectory |
| CN110132534A (en) * | 2019-05-09 | 2019-08-16 | 青岛科技大学 | Particle nonlinearities collide force measuring system in a kind of liquid phase environment |
| CN110132534B (en) * | 2019-05-09 | 2021-03-05 | 青岛科技大学 | System for measuring nonlinear impact force of particles in liquid phase environment |
| CN110702353A (en) * | 2019-10-11 | 2020-01-17 | 西北工业大学 | Submillimeter-level particle generating device |
| CN111157407A (en) * | 2019-12-26 | 2020-05-15 | 清华大学 | System for measuring critical adhesion speed and coefficient of restitution of micron particles against wall |
| CN111157407B (en) * | 2019-12-26 | 2021-11-16 | 清华大学 | System for measuring critical adhesion speed and coefficient of restitution of micron particles against wall |
| CN111579208A (en) * | 2020-05-16 | 2020-08-25 | 大连理工大学 | Experimental device for pressure-adjustable micron-sized particles collide with different surfaces |
| WO2021232646A1 (en) * | 2020-05-16 | 2021-11-25 | 大连理工大学 | Pressure-adjustable experimental device for collisions of micron-sized particles and different surfaces |
| CN114397231A (en) * | 2022-01-21 | 2022-04-26 | 中国矿业大学 | Visual test device and method for adhesion and desorption of wet particles in gas-solid two-phase flow |
| CN114397231B (en) * | 2022-01-21 | 2024-04-16 | 中国矿业大学 | Visual test device and method for adhesion and desorption of wet particles in gas-solid two-phase flow |
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Application publication date: 20180724 |