CN109900576A - A kind of experimental provision and method for assessing particle stream collective friction and wear behavior - Google Patents
A kind of experimental provision and method for assessing particle stream collective friction and wear behavior Download PDFInfo
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Abstract
Present disclose provides a kind of experimental provisions and method for assessing particle stream collective friction and wear behavior, experimental provision, comprising: host dynamical system, transmission system, main pipeline circuit, replaceable rubbed sample component, vacuum system, temperature control heating system and platform support construction；Host dynamical system is for driving main pipeline circuit；Transmission system is used to the power of host dynamical system passing to main pipeline circuit；Main pipeline circuit rotates under the driving of host dynamical system, simulates a variety of fluidised forms of spallation target particle stream；Replaceable rubbed sample component and main pipeline circuit, places friction sample；Main pipeline circuit is placed in heating furnace body, and temperature control heating system is for being evenly heated main pipeline circuit；Vacuum system is connected with main pipeline circuit, for realizing the vacuum and atmosphere protection in main pipeline circuit；Platform structure is used to provide support for experimental provision.
Description
Technical field
This disclosure relates to a kind of experimental provision and method for assessing particle stream collective friction and wear behavior.
Background technique
Accelerator Driven Subcritical transmuting device (CiADS) wherein transmute by the strong neutron source of high power spallation target major function generation
Become nuke rubbish, is the part of most critical in CiADS.The particle stream spallation target of newest proposition is with corrosion-free, heat removal efficiency is high
The advantages that.But since spallation target needs to run under exceedingly odious work condition environment, wherein one of main problem faced is just
That particle stream can generate strong fretting wear in the process of running, this influence whether the overall operation of spallation target stability and
Safety, it is therefore desirable to find a kind of practicable method to assess the fretting wear of particle stream target.Due to target running environment
Harshness, target ball numbers of particles is numerous (about more than 1,000,000,000), complicated movement, and fluidised form includes rarefied flow, solid stream and the mistake of centre
State is crossed, diversification, including rolling, sliding, collision impact etc. is presented in wear form, there is no suitable method assessment this kind of at present
The fretting wear situation of particle stream target collective motion behavior.
In addition, target pipeline is the channel of particle target operation in spallation target circuit, therefore in addition to the friction of particle target is ground
Damage, there are also the fretting wears of spallation target pipeline.Since the difference of particle fluidised form in target circuit causes pipe wear everywhere different,
Therefore its wear Characteristics is related to the operational reliability and safety problem of device, it is necessary to be assessed.
It currently, existing tribology equipment can only carry out relatively simple frictional wear experiment mostly, and is fixed friction
Pair, friction type is more single, independent load, and experiment condition differs larger from spallation target actual operating mode, it is difficult to objective reality
Assessment particle target collective friction and wear behavior (rolling, sliding, collision impact etc.).A kind of existing high-temperature vacuum spin friction
Testing machine can cannot assess the friction in the case of rarefied flow with the fretting wear of particle in the case of semi-quantitative assessment solid stream
Abrasion and the erosive wear of pipeline.And rarefied flow and solid stream exist simultaneously in particle stream spallation target circuit, and sparse miscarriage
Raw collision erosive wear, may be more serious than the fretting wear that solid stream generates.It would therefore be highly desirable to find a kind of practicable
The fretting wear of method comprehensive assessment particle stream target.
Summary of the invention
(1) technical problems to be solved
The purpose of the disclosure is to provide a kind of assessment particle stream collective for fretting wear problem in high power spallation target to rub
Wipe the experimental provision of abrasional behavior, with assess fretting wear of a large amount of particles in solid stream, rarefied flow, impact flow abrasion with
And the fretting wear of corresponding pipeline.In addition, the experimental provision of the disclosure can realize that the high temperature of particle stream spallation target, atmosphere etc. are practical
Working condition, and the long timeliness of method assessment particle stream spallation target that a set of science is provided run caused by particle collective and pipeline
Fretting wear situation.
(2) technical solution
Present disclose provides a kind of experimental provisions for assessing particle stream collective friction and wear behavior, comprising: host dynamical system
System, transmission system, main pipeline circuit, replaceable rubbed sample component, vacuum system, temperature control heating system and platform
Structure；Host dynamical system is for driving main pipeline circuit；Transmission system is for passing to the power of host dynamical system
Main pipeline circuit；Main pipeline circuit rotates under the driving of host dynamical system, simulates a variety of streams of spallation target particle stream
State；Replaceable rubbed sample component and main pipeline circuit, places friction sample；Vacuum system and main pipeline circuit phase
Even, vacuum system for realizing main pipeline circuit vacuum and atmosphere protection；Temperature control heating system is used to return main pipeline
Road is evenly heated；Platform structure is used to provide support for experimental provision.
In some embodiments of the present disclosure, host dynamical system includes: high torque motor, for driving main pipeline to return
Road；Control mechanism, for controlling the revolving speed of high torque motor；Sequential control system is for controlling main pipeline circuit rotation status
To realize the different motion states of particle, to simulate a variety of fluidised forms of spallation target particle stream.
In some embodiments of the present disclosure, a variety of fluidised forms include: intensive fluidised form, closs packing state, collision impact, orientation
Impact conditions, sparse stream mode.
In some embodiments of the present disclosure, main pipeline circuit includes: that the first particle holding tank, the second particle are temporary
Case, arc pipe, vertical target section, inclined tube road, the lower section closing in of target section, material filling discharge port, piping support structure.
In some embodiments of the present disclosure, vacuum system includes: vacuum pump, vacuum meter, valve, main pipeline circuit warp
Valve connects vacuum pump, and vacuum meter is equipped between valve and vacuum pump.
In some embodiments of the present disclosure, temperature control heating system includes: heating furnace main body, temperature control system, main pipeline
Circuit is placed in heating furnace main body, and temperature control system is for controlling heating furnace main body, it can be achieved that in room temperature to 600 degree Celsius ranges
Temperature is adjusted.
In some embodiments of the present disclosure, platform structure includes: support construction and rotation on pedestal and pedestal
Rotation shaft supporting structure, support construction support host dynamical system, and rotary shaft support structure supports transmission system.
The disclosure additionally provides a kind of experimental method for assessing particle stream collective friction and wear behavior, comprising: step S1:
Spallation target particle is poured into main pipeline circuit；Step S2: host dynamical system drives the rotation of main pipeline circuit, simulates spallation
A variety of fluidised forms of target particle stream；Step S3: sampling inside from experimental provision, analyze spallation target particulate samples, and assessment dissipates
Split the fretting wear situation of target particle and pipeline.
In some embodiments of the present disclosure, in step s 2, under the driving of host dynamical system, main pipeline circuit
It rotates, the particle in the first particle holding tank flows into arc pipe, and opposing arcuate pipe motion, forms particle target solid stream
State finally flows into the second particle holding tank；Main pipeline circuit quickly rotates static after predetermined angular, and vertical target section is relative to ground
Face is in plumbness, its temporary particle is injected at vertical target section by the second particle holding tank, realizes at vertical target section
The intergranular collision impact of closs packing state and target of target ball particle；It is deposited in the target ball particle at vertical target section and passes through target section
Lower section closes up to form vertical drop beam, and is applied on inclined tube road, simulates the orientation of spallation target internal particle stream and rigid element
Impact conditions can form sparse stream mode when particle flows through inclined tube road, subsequently flow into the first particle holding tank.
(3) beneficial effect
It can be seen from the above technical proposal that the disclosure has the advantages that
(1) it may be implemented to carry out under variable grain useful load, different temperatures (- 600 DEG C of room temperature), vacuum/atmosphere environment
Particle raw fretting wear of Collective Flow movable property in pipeline.
(2) operation of conduit running simulation spallation target internal particle, the different zones in return are driven using motor
A variety of fluidised forms such as impact of particle solid stream, rarefied flow, particle may be implemented, and realize particle rolling, sliding, collision erosion etc.
The fretting wear of diversified forms.The actual condition that the operating condition of the present apparatus is run close to spallation target realizes spallation target and returns
The altitude simulation on road.
(3) particle stream spallation target under special operation condition can effectively be assessed using a set of scientific method that apparatus of the present invention provide
In particle collective and pipeline friction and wear behavior, provide reliable and effective science data and reference for CiADS engineering construction
Foundation.
Detailed description of the invention
Fig. 1 is the side view for the experimental provision that the embodiment of the present disclosure assesses particle stream collective friction and wear behavior.
The front view of pipeline loop based on Fig. 2.
Fig. 3 is the flow chart for the experimental method that the embodiment of the present disclosure assesses particle stream collective friction and wear behavior.
[symbol description]
1- high torque motor；2- control mechanism；3- transmission shaft；4- main pipeline circuit；5- replaceable rubbed sample portion
Part；6- heats furnace main body；7- pedestal；8- support construction；9- rotary shaft support structure；10- the first particle holding tank；11- arc
Pipeline；12- vertical target section；13- inclined tube road；It closes up below 14- target section；15- material filling discharge port；16- piping support structure；17-
Pump-line；18- the second particle holding tank.
Specific embodiment
Disclosure device drives the driving of conduit running simulation spallation target internal particle to run using motor, can when operation
To realize the compound movement of particle stream, and analog particle stream target realizes temporary, the flowing of target ball at different sections.
For the purposes, technical schemes and advantages of the disclosure are more clearly understood, below in conjunction with specific embodiment, and reference
The disclosure is further described in attached drawing.
One embodiment of the disclosure provides a kind of experimental provision for assessing particle stream collective friction and wear behavior, comprising: main
Motor-driven Force system, transmission system (or axis system), main pipeline circuit 4, replaceable rubbed sample component 5, vacuum system,
Temperature control heating system and platform support construction.
Host dynamical system includes: high torque motor 1, control mechanism 2, sequential control system etc..High torque motor 1 is to drive
Motivation structure, for driving main pipeline circuit 4, torque about 500N*m.Control mechanism 2 is used to control turning for high torque motor 1
The control (range of speeds 0-30r/min) to 1 revolving speed of high torque motor may be implemented by control mechanism 2 in speed.Timing control
System can realize friction speed in a swing circle internal control tubing giving sufficient strength in main pipeline circuit 4 by timing control
Rotation status, and the different motion states of particle in main pipeline circuit 4 are thus controlled, guarantee that particle stream is returned in main pipeline
The different location on road 4 realizes flowing, temporary, stable vertical grain whereabouts beam.
For transmission system between host dynamical system and main pipeline circuit 4, transmission shaft 3 connects 1 He of high torque motor
Heat insulating function for the power of high torque motor 1 to be passed to main pipeline circuit 4, and is played in main pipeline circuit 4, protection
The operation of high torque motor 1 is not influenced by the high temperature of main body pipeline loop 4.
Main pipeline circuit 4 includes: two particle holding tanks, arc pipe 11, vertical target section 12, inclined tube road 13, target section
Close up 14, material filling discharge port 15, piping support structure 16 etc. for lower section, can rotate under the driving of host dynamical system.Pipeline branch
16 supportive body pipeline loop 4 of support structure.Main pipeline circuit 4 is also equipped with pump-line 17.
Particle holding tank is for the collection of particle, temporarily storage etc., wherein the first particle holding tank 10 is located at below target section
The lower section of closing in 14, the second particle holding tank 18 are located at the top of vertical target section 12.Arc pipe 11 is particle solid stream runner,
Under the driving of host dynamical system, main pipeline circuit 4 rotates, and the particle in the first particle holding tank 10 flows into arc pipe
In 11, and opposing arcuate pipeline 11 moves, and forms the intensive fluidised form of particle target, the second particle holding tank 18 is finally flowed into, in timing
Under system control, this process rotation speed can relatively slowly.Later, under the control of sequential system, main pipeline circuit 4 can be quick
It is static after rotation (before 2-3 times of speed) to certain angle, at this point, vertical target section 12 is in plumbness relative to ground,
Its temporary particle can be injected at vertical target section 12 by the second particle holding tank 18, and target may be implemented at vertical target section 12
The closs packing state of ball particle, while realizing the intergranular collision impact of target.By adjusting target ball charging ratio, target ball is adjusted
The piling height of particle.It is deposited in the target ball particle at vertical target section 12 and vertical drop beams is formed by closing in 14 below target section,
And be applied on inclined tube road 13, the orientation impact conditions of spallation target internal particle stream and rigid element are simulated, are flowed through in particle
Sparse stream mode can be formed when inclined tube road 13, subsequently flowed into the first particle holding tank 10, realized particle again in the process
Accumulation and intergranular collision, after static a period of time, sequential system control under, main pipeline circuit 4 starts again at rotation
Turn, so on circulate.Whole process simulates the most different fluidised forms of particle stream in spallation target, including solid stream, dilute
Dredge stream, impact flow, collision etc..The fretting wear that particle rolls, slides, collides the diversified forms such as erosion is realized simultaneously.
Replaceable rubbed sample component 5 is connected (see Fig. 2) with main pipeline, can place rub corresponding with line size
Sample, it is desirable that friction sample curved surface, material are identical as pipeline, main purpose be by detect friction sample abrasion condition come
Assess the andfrictional conditions of pipeline material.Its convenient disassembly, can sample detection sample at any time fretting wear degree.
Vacuum system includes: vacuum pump, vacuum meter, valve etc..Main pipeline circuit 4 is connected by pump-line 17 through valve
Vacuum pump is connect, vacuum meter is installed between valve and vacuum pump.Vacuum system for realizing main pipeline circuit 4 vacuum and
Atmosphere protection.
Temperature control heating system includes: heating furnace main body 6, temperature control system etc..Main pipeline circuit 4 is placed in heating furnace main body 6
In, heating furnace main body 6 can be evenly heated entire main pipeline circuit 4.Temperature control system, can for controlling heating furnace main body 6
Realize that the temperature in room temperature to 600 degree Celsius ranges is adjusted.
Platform structure includes: support construction 8 and rotary shaft support structure 9 on pedestal 7 and pedestal 7.Support knot
Structure 8 supports host dynamical system, and rotary shaft support structure 9 supports transmission system, temperature control heating system.
Using above-mentioned experimental provision, the disclosure can assess particle stream collective friction and wear behavior.According to friction away from
From equity, in the experimental provision of the present embodiment, the range ability of metal target ball is equivalent to metal target ball in spallation target
Range ability.It can control the speed of service of target ball in the experimental provision of the present embodiment.In addition, the present embodiment experimental provision
The particle fluidised form different similar to particle stream spallation target can be formed in main pipeline circuit 4, further simulate actual condition,
It thus can use the fretting wear of particle stream and pipeline in the experimental result rapid evaluation spallation target of this experimental provision.
Another embodiment of the disclosure additionally provides a kind of experimental method for assessing particle stream collective friction and wear behavior, utilizes
The experimental provision of above-described embodiment assesses particle stream collective friction and wear behavior, comprising:
Step S1: spallation target particle is poured into main pipeline circuit.
This step is entered spallation target particle filling in main body pipeline loop 4 by material filling discharge port 15.
Step S2: host dynamical system drives the rotation of main pipeline circuit, simulates a variety of fluidised forms of spallation target particle stream, this
A little fluidised forms include: intensive fluidised form, closs packing state, collision impact, orientation impact conditions, sparse stream mode etc..
In this step, under the driving of host dynamical system, main pipeline circuit 4 rotates, the first particle holding tank 10
In particle flow into arc pipe 11 in, and opposing arcuate pipeline 11 move, formed the intensive fluidised form of particle target, finally flow into second
Particle holding tank 18, under sequential system control, this process rotation speed can relatively slowly.
Later, under the control of sequential system, main pipeline circuit 4 can quickly rotate (before 2-3 times of speed) to one
Determine static after angle, at this point, vertical target section 12 is in plumbness relative to ground, the second particle holding tank 18 can be by it temporarily
The particle deposited is injected at vertical target section 12, the closs packing state of target ball particle may be implemented at vertical target section 12, while real
The intergranular collision impact of target is showed.By adjusting target ball charging ratio, the piling height of adjustable target ball particle.
The target ball particle at vertical target section 12 is deposited in by the 14 formation vertical drop beams that close up below target section, and is applied to
On inclined tube road 13, the orientation impact conditions of spallation target internal particle stream and rigid element are simulated, flow through inclined tube road 13 in particle
When can form sparse stream mode, subsequently flow into the first particle holding tank 10, realize again in the process the accumulation of particle with
Intergranular collision, after static a period of time, under sequential system control, main pipeline circuit 4 starts again at rotation, so past
Multiple circulation.Whole process simulates the most different fluidised forms of particle stream in spallation target, including solid stream, rarefied flow, flowing
Impact, collision etc..The fretting wear that particle rolls, slides, collides the diversified forms such as erosion is realized simultaneously.
Step S3: sampling inside from experimental provision, analyze spallation target particulate samples, assesses spallation target particle and pipe
The fretting wear situation in road.
In present apparatus experimentation can periodically (such as every 5 days or 10, according to actual needs can sets itself) from experiment
Sampling inside device carries out cleaning treatment to sampling, successively uses deionized water, acetone, wine to particulate samples Real Time Monitoring
The liquid such as essence are cleaned by ultrasonic, its surface dirt and impurity are removed, and are ground by optical microscopy or sem analysis sample surfaces
Damage situation studies its abrasion mechanism；(about 5-10 group) is grouped to sampling and is precisely weighed, the weight of every group of sample is obtained,
After weight data statistical disposition, with do not test or the weight of laboratory sample before compared with, can get in certain experimental period,
Mass loss after the abrasion of particle target collective statisticallys analyze a series of experiments point after repeatedly sampling, and can get particle target
Abrasion of the ball under certain experiment condition with experimental period variation；It is equivalent to according to the range ability of particle target ball relative duct size
Experimental period is about melted into spallation target runing time, can indirectly assess spallation by the range ability of metal target ball in spallation target
In target the wear condition of particle target ball with runing time variation；While sampling, replaceable rubbed sample can be removed,
Fretting wear analysis is carried out, the fretting wear situation of pipeline is assessed.
Key point of the invention is through the Multifunctional design to pipeline loop, with the ingenious combination of timing control, simulation
The a variety of fluidised forms, including solid stream, rarefied flow, impact flow etc. of particle particle target in spallation target circuit, are especially realized
The orientation impact and rarefied flow that the biggish particle stream vertical drop of difficulty is formed.
Key point of the invention, which also resides in, provides the method for a set of science, according to the einstem's equialency principle of frictional distance and right
The simulation of a variety of fluidised forms in particle stream spallation target establishes the relationship between device operation and spallation target operation, can quickly comment
Estimate the fretting wear situation of particle collective and pipeline in spallation target.
Work condition environment (high temperature, vacuum/atmosphere) of the disclosure according to the operation of particle stream target, for particle stream in special operation condition
Under collective's friction and wear behavior.The effect of the disclosure is: (1) may be implemented in variable grain useful load, different temperatures (room
- 600 DEG C of temperature), carry out particle raw fretting wear of Collective Flow movable property in pipeline under vacuum/atmosphere environment；(2) motor band is utilized
The operation of dynamic conduit running simulation spallation target internal particle, particle solid stream, dilute may be implemented in different zones in return
A variety of fluidised forms such as the impact of stream, particle are dredged, and realize the fretting wear that particle rolls, slides, collides the diversified forms such as erosion.This
The actual condition that the operating condition of experimental provision is run close to spallation target realizes the altitude simulation in spallation target circuit.(3) sharp
The particle collective under special operation condition in particle stream spallation target can be effectively assessed with a set of scientific method that this experimental provision provides
And the friction and wear behavior of pipeline, reliable and effective science data and reference frame are provided for CiADS engineering construction.
It should be noted that in attached drawing or specification text, the implementation for not being painted or describing is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and not only limiting
Various specific structures, shape or the mode mentioned in embodiment, those of ordinary skill in the art can carry out simply more it
Change or replaces.
Particular embodiments described above has carried out further in detail the purpose of the disclosure, technical scheme and beneficial effects
Describe in detail it is bright, it is all it should be understood that be not limited to the disclosure the foregoing is merely the specific embodiment of the disclosure
Within the spirit and principle of the disclosure, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the disclosure
Within the scope of shield.
Claims (9)
1. a kind of experimental provision for assessing particle stream collective friction and wear behavior, comprising: host dynamical system, transmission system, master
Body pipeline loop, replaceable rubbed sample component, vacuum system, temperature control heating system and platform support construction；
Host dynamical system is for driving main pipeline circuit；
Transmission system is used to the power of host dynamical system passing to main pipeline circuit；
Main pipeline circuit rotates under the driving of host dynamical system, simulates a variety of fluidised forms of spallation target particle stream；
Replaceable rubbed sample component and main pipeline circuit, places friction sample；
Vacuum system is connected with main pipeline circuit, for realizing the vacuum and atmosphere protection in main pipeline circuit；
Temperature control heating system is for being evenly heated main pipeline circuit；Wherein, main pipeline circuit is placed in heating furnace body；
Platform structure is used to provide support for experimental provision.
2. experimental provision as described in claim 1, host dynamical system include:
High torque motor, for driving main pipeline circuit；
Control mechanism, for controlling the revolving speed of high torque motor；
Sequential control system is for controlling main pipeline circuit rotation status to realize the different motion states of particle, thus mould
A variety of fluidised forms of quasi- spallation target particle stream.
3. experimental provision as claimed in claim 2, a variety of fluidised forms include: intensive fluidised form, closs packing state, collision impact, determine
To impact conditions, sparse stream mode.
4. experimental provision as described in claim 1, main pipeline circuit includes: that the first particle holding tank, the second particle are temporary
Case, arc pipe, vertical target section, inclined tube road, the lower section closing in of target section, material filling discharge port, piping support structure.
5. experimental provision as described in claim 1, vacuum system includes: vacuum pump, vacuum meter, valve, main pipeline circuit
Vacuum pump is connected through valve, vacuum meter is installed between valve and vacuum pump.
6. experimental provision as described in claim 1, temperature control heating system includes: heating furnace main body, temperature control system, main pipeline
Circuit is placed in heating furnace main body, and temperature control system is for controlling heating furnace main body, it can be achieved that in room temperature to 600 degree Celsius ranges
Temperature is adjusted.
7. experimental provision as described in claim 1, platform structure includes: support construction and rotation on pedestal and pedestal
Rotation shaft supporting structure, support construction support host dynamical system, and rotary shaft support structure supports transmission system.
8. a kind of experimental method for assessing particle stream collective friction and wear behavior, comprising:
Step S1: a certain amount of particle is poured into main pipeline circuit；
Step S2: host dynamical system drives the rotation of main pipeline circuit, a variety of fluidised forms of analog particle stream；
Step S3: sampling inside from experimental provision, analyze particulate samples, assesses the fretting wear feelings of particle and pipeline
Condition.
9. experimental method as claimed in claim 8, in step s 2,
Under the driving of host dynamical system, main pipeline circuit rotates, and the particle in the first particle holding tank flows into curved pipe
In road, and opposing arcuate pipe motion, the intensive fluidised form of particle is formed, the second particle holding tank is finally flowed into；
Main pipeline circuit quickly rotates static after predetermined angular, and vertical target section is in plumbness relative to ground, and second
Grain holding tank its temporary particle is injected at vertical target section, at vertical target section realize particle closs packing state and
The collision impact of intergranular；
It is deposited in the particle at vertical target section and forms vertical drop beam by closing up below target section, and be applied on inclined tube road, mould
The orientation impact conditions of quasi- spallation target internal particle stream and rigid element, can form rarefied flow shape when particle flows through inclined tube road
State subsequently flows into the first particle holding tank.
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| 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 |
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