CN208672039U - A kind of visible velocity field and thermal field coupling measurement experimental system - Google Patents
A kind of visible velocity field and thermal field coupling measurement experimental system Download PDFInfo
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- CN208672039U CN208672039U CN201821560122.6U CN201821560122U CN208672039U CN 208672039 U CN208672039 U CN 208672039U CN 201821560122 U CN201821560122 U CN 201821560122U CN 208672039 U CN208672039 U CN 208672039U
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- 238000005259 measurement Methods 0.000 title claims abstract description 33
- 230000008878 coupling Effects 0.000 title claims abstract description 20
- 238000010168 coupling process Methods 0.000 title claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 20
- 238000002474 experimental method Methods 0.000 claims abstract description 39
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 83
- 125000004122 cyclic group Chemical group 0.000 claims description 24
- 239000007850 fluorescent dye Substances 0.000 claims description 17
- 239000003086 colorant Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 9
- 210000000476 body water Anatomy 0.000 claims description 5
- 230000002572 peristaltic effect Effects 0.000 claims description 4
- 239000000700 radioactive tracer Substances 0.000 claims description 2
- 239000000975 dye Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 238000000917 particle-image velocimetry Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 9
- 238000001499 laser induced fluorescence spectroscopy Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 238000012800 visualization Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 230000001869 rapid Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
Provided by the utility model is a kind of visible velocity field and thermal field coupling measurement experimental system.The utility model can be realized simultaneously the visualization measurement of complex mechanical structure interior flow field under different experiments operating condition, thermal field characteristic.The utility model combination laser Induced Fluorescence Technology (LIF) and Particle Image Velocimetry (PIV), construct reasonable light path system, partial wave processing is carried out to lightwave signal by a series of optical elements such as spectroscope, narrow pass filters, realizes that complex flowfield Temperature Distribution in visualized experiment ontology, the synchronous of Flowing characteristic parameters obtain using synchronizer control high-speed camera sync pulse jamming.The utility model is designed using modularization circuit, and mutually indepedent between each sub-loop, the reliability of experimental system is higher.The real-time synchro measure of the whole audience can be unfolded to the physical parameter inside complex flowfield in the utility model, while will not generate disturbance to practical flow field in measurement process, be suitable for various complex flowfield Study of Flow Characteristics.
Description
Technical field
The utility model belongs to hydrodynamic calculations field, and in particular to a kind of visible velocity field and thermal field coupling measurement are real
Check system.
Background technique
With the increasingly increase of energy demand, exploitation and the application of nuclear energy are got more and more attention.In nuclear power system, core master
Pump core component as whole system, be responsible for driving circuit coolant circulation and export reactor core heat, the performance run it is good
The bad safety and economy for directly determining entire nuclear power system.Therefore the optimization of core main pump is of great significance, however main
Pump operation performance depends greatly on the mobility status of its internal working medium, therefore the accurate survey of main pump interior flow field characteristic
Operational efficiency, working life and the safety in operation for improving pump are measured, the economy for improving nuclear power system, which has, extremely to be weighed
Big meaning.As a kind of complicated mechanical equipment, main pump fluid flow inside process is sufficiently complex, is a kind of complicated
Compound motion has the characteristics that dither.Therefore the accurate acquisition of its interior flow is very difficult.Traditional measurement hand
Section be usually inside flow field arrange sensing element (orientation probe, pressure sensor etc.) to acquire corresponding information of flow,
But not only exists measure delay, sensing element difficult arrangement, be difficult to realize measurement of full field etc. using this measurement method and lack
Point, in measurement process can also stream field flowing generate interference, seriously affect the accuracy of experiment measurement.In addition to traditional experiment
Means, it is also a kind of widely applied analysis means that numerical value, which calculates, has many advantages, such as convenient, fast, at low cost, but its result
Accurate experimental data is needed to verify, it is therefore necessary to design a kind of experimental measurement system and both overcome numerical simulation result accuracy
Deficiency, and can be avoided traditional measurement method stream field disturbance status.
Utility model content
Provided by the utility model can be used for inside complex flowfield, realizes that the coupling of more physical parameters inside flow field is synchronous
A kind of visible velocity field and thermal field coupling measurement experimental system of measurement.
The purpose of this utility model is realized by following technical solution:
A kind of visible velocity field and thermal field coupling measurement experimental system, including circuit system and light path system, it is described
Circuit system includes temperature calibration circuit and circulation loop, and the circulation loop includes cyclic water tank and coloring agent water tank, is followed
Adding in ring water tank has trace particle, and adding in coloring agent water tank has fluorescent dye, cyclic water tank bottom water outlet by pipeline according to
Secondary and main valve, circulating pump, main valve, flowmeter are connected with the water inlet of experiment body, and experiment body water outlet is protruded by pipeline
In cyclic water tank, thermometer is equipped on the inlet and outlet pipeline of experiment body, the water outlet of coloring agent water tank passes through
Pipeline is successively connect with peristaltic pump and experiment body water inlet；The temperature calibration circuit includes calibration water tank, demarcates water tank
In add and have fluorescent dye, the water outlet for demarcating water tank is connected to the main valve and circulating pump of circulation loop by pipeline and check-valves
Between, the water inlet for demarcating water tank is connect by pipeline with the water outlet for demarcating ontology, and the water inlet for demarcating ontology passes through pipe
Road and check-valves are connected between the circulating pump of circulation loop and main valve, are demarcated on the inlet and outlet pipeline of ontology and are all provided with
There is thermometer；The light path system includes high-speed camera, tachymeter and laser generator；The laser generator arrangement
In the two sides of experiment body；The tachymeter is connected with experiment body；The high-speed camera is arranged outside experiment body
Portion is simultaneously connected with synchronizer, and spectroscope and optical filter are provided between high-speed camera and experiment body.
The utility model can also include:
The fluorescent dye added in the calibration water tank is FL27；The trace particle added in the cyclic water tank
For PIV trace particle；The fluorescent dye added in the coloring agent water tank is RhB；3 are equipped in the light path system
High-speed camera, wherein a high-speed camera is equipped with the narrow pass filter of 527nm, it is narrow logical that a high-speed camera is equipped with 532nm
Optical filter, a high-speed camera are equipped with the narrow pass filter of 578nm.
The circuit system includes cooling circuit and bypass circulation, and the cooling circuit includes cooling water tank, circulation
Pump and heat exchanger, heat exchanger be separately positioned on cyclic water tank and calibration water tank in, cooling water tank water outlet by pipeline successively with
Circulating pump, heat exchanger are connected with cooling water tank water inlet；Heater is equipped in the cyclic water tank；The bypass circulation packet
By-passing valve is included, by-passing valve is connected on cyclic water tank by pipeline one end, and the other end passes through piping connection in the master of circulation loop
Between valve and circulating pump.
The utility model has the beneficial effects that:
1. the utility model combination Particle Image Velocimetry (PIV) technology and laser induced fluorescence (LIF) technology, not
In the case where interference flowing field distinguish stream field Temperature Distribution, VELOCITY DISTRIBUTION, the motion profile of flow working medium and motion process into
Row capture in real time.
2. the method that the utility model uses visualization measurement, does not need to arrange corresponding sensor inside flow field, survey
Amount process will not stream field generate disturbance, can be realized simultaneously thermal field-flow field multi-parameter physical quantity coupling measurement；
3. the experimental loop of the utility model uses modularized design, mutually indepedent between sub-loop, it does not interfere with each other, both mentioned
The high reliability and accuracy of coupling measurement experimental system, and meet that temperature calibration, working medium is cooling and coupling measurement
Requirement of experiment；
4. the utility model carries out complementary polishing using double excitation, guarantee light intensity demand in experiment, while compensating for edge
Journey loses the defect for bringing light intensity unevenness, and experiment measurement accuracy has been effectively ensured；
5. the utility model carries out the partial wave processing of light wave using optical element, and controls more cameras using synchronizer
Synchronous triggering realizes the synchronous of multi-parameter information inside flow field and obtains；
It, can be in research pump 6. Tthe utility model system designs simple ingenious, cheap, easy processing, applied widely
The flow behavior in flow field and the structure design for improving pump provide guidance.
Detailed description of the invention
Fig. 1 is the circuit system schematic diagram of a kind of visible velocity field and thermal field coupling measurement experimental system.
Fig. 2 is the light path system schematic diagram of a kind of visible velocity field and thermal field coupling measurement experimental system.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
A kind of visible velocity field and thermal field coupling measurement experimental system, including circuit system and light path system, in conjunction with figure
1, it is the circuit system of the utility model；
The circuit system includes temperature calibration circuit and circulation loop, and the circulation loop includes cyclic water tank 1
With coloring agent water tank 13, adding in cyclic water tank has trace particle, and adding in coloring agent water tank has fluorescent dye, cyclic water tank bottom
By pipeline successively with main valve 4, circulating pump 5, main valve 8, flowmeter 9 is connected water outlet with the water inlet of experiment body 12, experiment
Ontology water outlet is protruded into cyclic water tank by pipeline, is equipped with thermometer on the inlet and outlet pipeline of experiment body
10, the water outlet of coloring agent water tank is successively connect with peristaltic pump 11 and experiment body water inlet by pipeline；The scale of thermometer
Determining circuit includes calibration water tank 14, and demarcating in water tank to add has fluorescent dye, and the water outlet for demarcating water tank passes through pipeline and non-return
Valve 6 is connected between the main valve 4 of circulation loop and circulating pump 5, is demarcated the water inlet of water tank by pipeline and is demarcated ontology 15
Water outlet connection, demarcate circulating pump 5 and main valve 8 that the water inlet of ontology is connected to circulation loop by pipeline and check-valves 6
Between, it demarcates on the inlet and outlet pipeline of ontology and is equipped with thermometer；
The circuit system further includes cooling circuit and bypass circulation, the cooling circuit include cooling water tank 16,
Circulating pump 5 and heat exchanger 2, heat exchanger are separately positioned in cyclic water tank 1 and calibration water tank 14, and cooling water tank water outlet passes through pipe
Road is successively connected with circulating pump, heat exchanger and cooling water tank water inlet；Heater 3 is equipped in the cyclic water tank 1；Described
Bypass circulation includes by-passing valve 7, and by-passing valve is connected on cyclic water tank by pipeline one end, and the other end is being followed by piping connection
Between the main valve 8 and circulating pump 5 of loop back path.
It is the light path system of the utility model in conjunction with Fig. 2；The light path system includes high-speed camera 21, tachymeter
17 and laser generator 18；The laser generator is arranged in the two sides of experiment body；The tachymeter and experiment body
12 are connected；The high-speed camera is arranged outside experiment body and is connected with synchronizer 24, and synchronizer is controlled by computer 25
System.Spectroscope 19 and optical filter are provided between high-speed camera and experiment body.
The fluorescent dye added in the calibration water tank is FL27；The trace particle added in the cyclic water tank
For PIV trace particle；The fluorescent dye added in the coloring agent water tank is RhB；3 are equipped in the light path system
High-speed camera, wherein a high-speed camera is equipped with the narrow pass filter 20 of 527nm, it is narrow that a high-speed camera is equipped with 532nm
Pass filter 22, a high-speed camera are equipped with the narrow pass filter 23 of 578nm.
Before experiment starts, first by PIV trace particle uniformly dispersing in cyclic water tank, the fluorescence to temperature measuring contaminates
Toner FL27 is dissolved in cycle fluid with a certain concentration, then carries out temperature calibration to fluorescent dye FL27.Close experiment system
The circulation loop of system, opening temperature are demarcated circuit (closing main valve 4, by-passing valve 7 and main valve 8, open check-valves 6), are calibrated
Fluorescent dye temperature-light intensity curve within the scope of experimental temperature.After calibration, calibration circuit is closed, bypass circulation is opened and (beats
Main valve 4, by-passing valve 7 are opened, check-valves 6 and main valve 8 are closed), to stablize piping flow and exclude the air in pipeline.This
Circulation loop and cooling circuit (closing check-valves 6, by-passing valve 7, open main valve 4 and main valve 8) are opened afterwards, by adjusting main valve 4
Carry out regulating loop flow with the aperture of main valve 8, working medium circulates under the driving of circulating pump 5 in circuit, steady to circuit operating condition
After fixed, by peristaltic pump 11 by fluorescent dye RhB injection experiments ontology, stream is characterized with the diffusion of fluorescent dye RhB
The motion process for matter of starting building, and measured using the characteristic parameter of the flow field inside high-speed camera stream field.
Complementary polishing is carried out with model laser generator 18 by two, guarantees laser intensity requirement in experiment, prevents
Because repeatedly light splitting causes the weak bring experimental error of light intensity, while compensating for the defect that linear loss brings light intensity unevenness,
Experiment measurement accuracy has been effectively ensured.Lightwave signal is divided twice using spectroscope 19, while using narrow pass filter
20, (the narrow pass filter 20 of 527nm only retains the fluorescence signal of coloring agent FL27, the narrow logical filter of 532nm for 22,23 progress partial wave processing
For mating plate 22 into the dispersed optical signal for retaining tracer PIV particle, the narrow pass filter 23 of 578nm only retains the fluorescence letter of coloring agent RhB
Number), the sync pulse jamming of high-speed camera 21 is controlled using synchronizer 24, respectively Temperature Distribution, the VELOCITY DISTRIBUTION, flowing of stream field
The motion profile and motion process of working medium are captured, and realize the coupling synchro measure of more physical parameters inside flow field.
The purpose of this utility model is to provide a kind of visual flow field and thermal field coupling measurement experimental system, system is set
Count ingenious, cheap, data acquisition is accurate convenient, and research condition range is wide, grinds suitable for various complex flowfield flow behaviors
Study carefully.The visualization measurement of complex mechanical structure interior flow field under different experiments operating condition, thermal field characteristic can be achieved, it is advanced in conjunction with two kinds
Laser-diagnose technology: laser Induced Fluorescence Technology (LIF) and Particle Image Velocimetry (PIV) construct reasonable optical path system
A series of system, by optical elements such as spectroscope, narrow pass filters to PIV trace particle and fluorescent dye RhB, FL27
Light wave carries out partial wave processing, controls high-speed camera sync pulse jamming using synchronizer, and different experiments work will be obtained after image procossing
The distribution character of condition Fluid field and thermal field.The distribution character of flow field and thermal field includes: the Temperature Distribution in flow field, VELOCITY DISTRIBUTION, rapids
Intensity of flow distribution, flow working medium motion profile and motion process.The utility model realizes more physical parameters inside flow field
Couple synchro measure.
The experimental loop of the utility model uses modularized design scheme, to guarantee the reliability of coupling measurement experimental system
With accuracy, while meeting that temperature calibration, working medium is cooling and the requirement of experiment of coupling measurement；
The utility model guarantees light intensity requirement in experiment using the complementary polishing of double excitation progress, prevents because repeatedly dividing
Light causes the weak bring experimental error of light intensity, while compensating for the defect that linear loss brings light intensity unevenness, is effectively ensured
Test measurement accuracy；
The utility model is adjusted experimental stand and high-speed camera using high-accuracy water level, guarantees that high speed is taken the photograph
Camera is vertical with shooting face, prevents optical path distortion bring measurement error；
The high-speed camera and laser generator of the utility model are arranged on high-precision horizontal slide rail, can be according to reality
The measurement position that demand adjusts lasing area is tested, and then obtains the flow field characteristic at different zones；
The utility model partly returns a series of optical elements such as spectroscope, edge filter, narrow pass filter using semi-transparent, will
The lightwave signal of different wave length carries out separating treatment, realizes the information such as flow field internal temperature, speed, working medium motion process (trace)
Synchronous obtain；
The utility model controls the shooting of three cameras by synchronizer, has fully ensured that the synchronism of camera shooting, pole
The earth reduces shooting delay bring experimental error between camera.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (3)
1. a kind of visible velocity field and thermal field coupling measurement experimental system, including circuit system and light path system, feature exist
In: the circuit system includes temperature calibration circuit and circulation loop, and the circulation loop includes cyclic water tank and dyeing
Agent water tank, adding in cyclic water tank has trace particle, and adding in coloring agent water tank has fluorescent dye, and cyclic water tank bottom water outlet is logical
Pipeline is crossed successively with main valve, circulating pump, main valve, and flowmeter is connected with the water inlet of experiment body, and experiment body water outlet passes through
Pipeline protrudes into cyclic water tank, and thermometer is equipped on the inlet and outlet pipeline of experiment body, and coloring agent water tank goes out
The mouth of a river is successively connect with peristaltic pump and experiment body water inlet by pipeline；The temperature calibration circuit includes calibration water tank,
Adding in calibration water tank has fluorescent dye, and the water outlet for demarcating water tank is connected to the main valve of circulation loop by pipeline and check-valves
Between circulating pump, the water inlet for demarcating water tank is connect by pipeline with the water outlet for demarcating ontology, demarcates the water inlet of ontology
It is connected between the circulating pump of circulation loop and main valve by pipeline and check-valves, demarcates the inlet and outlet pipeline of ontology
On be equipped with thermometer；The light path system includes high-speed camera, tachymeter and laser generator；The laser occurs
Device is arranged in the two sides of experiment body；The tachymeter is connected with experiment body；The high-speed camera setting is being tested
Body exterior is simultaneously connected with synchronizer, and spectroscope and optical filter are provided between high-speed camera and experiment body.
2. a kind of visible velocity field according to claim 1 and thermal field coupling measurement experimental system, it is characterised in that: described
Calibration water tank in the fluorescent dye that adds be FL27；The trace particle added in the cyclic water tank is PIV tracer grain
Son；The fluorescent dye added in the coloring agent water tank is RhB；3 high-speed cameras are equipped in the light path system,
A wherein high-speed camera outfit narrow pass filter of 527nm, a high-speed camera outfit narrow pass filter of 532nm, one
High-speed camera is equipped with the narrow pass filter of 578nm.
3. a kind of visible velocity field according to claim 1 or 2 and thermal field coupling measurement experimental system, it is characterised in that:
The circuit system includes cooling circuit and bypass circulation, and the cooling circuit includes cooling water tank, circulating pump and heat exchange
Device, heat exchanger be separately positioned on cyclic water tank and calibration water tank in, cooling water tank water outlet by pipeline successively with circulating pump, change
Hot device is connected with cooling water tank water inlet；Heater is equipped in the cyclic water tank；The bypass circulation includes by-passing valve,
By-passing valve is connected on cyclic water tank by pipeline one end, and the other end passes through piping connection in the main valve and circulating pump of circulation loop
Between.
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| CN201821560122.6U CN208672039U (en) | 2018-09-25 | 2018-09-25 | A kind of visible velocity field and thermal field coupling measurement experimental system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821560122.6U CN208672039U (en) | 2018-09-25 | 2018-09-25 | A kind of visible velocity field and thermal field coupling measurement experimental system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115273A (en) * | 2018-09-25 | 2019-01-01 | 哈尔滨工程大学 | A kind of visible velocity field and thermal field coupling measurement experimental system |
-
2018
- 2018-09-25 CN CN201821560122.6U patent/CN208672039U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115273A (en) * | 2018-09-25 | 2019-01-01 | 哈尔滨工程大学 | A kind of visible velocity field and thermal field coupling measurement experimental system |
| CN109115273B (en) * | 2018-09-25 | 2023-12-05 | 哈尔滨工程大学 | Visual flow field and temperature field coupling measurement experiment system |
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