CN109084950A - A kind of visualization device suitable for clean Indoor Flow Field - Google Patents
A kind of visualization device suitable for clean Indoor Flow Field Download PDFInfo
- Publication number
- CN109084950A CN109084950A CN201811078268.1A CN201811078268A CN109084950A CN 109084950 A CN109084950 A CN 109084950A CN 201811078268 A CN201811078268 A CN 201811078268A CN 109084950 A CN109084950 A CN 109084950A
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- CN
- China
- Prior art keywords
- toilet
- flow
- pipe tobacco
- equipment
- field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012800 visualization Methods 0.000 title claims abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000779 smoke Substances 0.000 claims abstract description 16
- 241000208125 Nicotiana Species 0.000 claims abstract description 15
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 15
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 230000000391 smoking effect Effects 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract description 15
- 235000019504 cigarettes Nutrition 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000001704 evaporation Methods 0.000 abstract description 4
- 230000008020 evaporation Effects 0.000 abstract description 4
- 238000003384 imaging method Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000000443 aerosol Substances 0.000 description 3
- 239000000700 radioactive tracer Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004509 smoke generator Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/065—Measuring arrangements specially adapted for aerodynamic testing dealing with flow
- G01M9/067—Measuring arrangements specially adapted for aerodynamic testing dealing with flow visualisation
Abstract
The present invention discloses a kind of visualization device suitable for clean Indoor Flow Field.Mainly there are three parts for this equipment: smoking device, power supply, bracket.Smoking device is made of nickel filament (diameter 0.5mm long 1500mm) and glycerol (chemistry is pure)；Power supply is switch and 25V AC power source；Bracket is two at a distance of 2m, long 2m metal circular tube, two mobile folders and spring (1.2mm*9mm*40mm white zine).Cigarette line technology is that smoke oil is coated on heating wire, leads to certain voltage, and oil droplet evaporation forms pipe tobacco under air-flow guidance to show fluidised form.In toilet under smaller wind speed, cigarette line technology can study air flow condition.This equipment can carry out static two dimensional imaging to toilet flow field intuitively to observe whether toilet complies with standard；Observe toilet's depth of parallelism, three sinuous flow degree, lower limit air velocity Unidirectional air flow clean rooms characteristic index.Be conducive to improve toilet.The apparatus is simple, easy to use, is suitable for toilet's class steady air current place.
Description
Technical field
This patent proposes a kind of flow-field visualized equipment, is suitable for clean room environment, belongs to toilet field, and HVAC is empty
Tune field.
Background technique
Flow Visualization plays a significant role in hydrodynamics research.In toilet, three one-way flow cleanings
The characteristic index of room: the depth of parallelism, sinuous flow degree, lower limit air velocity all there are certain requirements.The flow-field visualized mode of this equipment is smoke-wire method.
Smoke-wire method is chiefly used in wind tunnel test, is a kind of visual means applied to aviation field.Cigarette line technology is currently used primarily in machine
The separation flowing of the wing and fuselage High Angle of Attack, jet flow and wake, the Separated Flows Behind Blunt Wedges of non-aircraft and turbulence structure etc.
The research of complex flowfield.Cigarette line technology is that smoke oil is coated on thin heating wire, and certain voltage is led to heating wire, and oil droplet steams
Hair, under the guidance of air-flow, the smog of evaporation will form pipe tobacco, show fluidised form by the form of pipe tobacco.
Detection for airflow pattern includes the test of air-flow range estimation and air flow direction.The multi-purpose tracer collimation method of air-flow range estimation,
Smoke (mist) the methods of method and image procossing；The test of air flow direction mostly uses tracer collimation method, smoke (mist) method and 3D approach to survey
Measure the methods of air velocity.Currently, airflow direction and visual inspection can use tracer, thermal anemometers, three-dimensional ultrasonic wind speed
The equipment such as meter, aerosol generator, aerosol producer.
According to the detection content of air-flow, mostly using smoke generator in GB50591-2010 " toilet construction and acceptance specification "
Or air flow direction is observed and recorded point by point to the method for suspension monofilament lines.But poor with aerosol producer levels of smoke production, smog is easy to lose,
And manual operation is needed, personnel have interference effect to the flowing of clean indoor air flow." a kind of toilet is empty for Chinese utility model patent
Gas test macro " (application number: 201720587853.9, publication date: 2017.05.24) by the way of pressurization, liquid nitrogen is generated
Smog each outlet flue is transported to from smog storage bin.But smog goes out the speed flowed and can generate centainly to airflow field
It influences, and the outlet flue speed of smog long-distance transportation different distance is different, in addition, the smoke temperature that liquid nitrogen generates is lower,
It can condense in pipeline outer wall, have an impact to equipment in toilet.Chinese invention patent " the wind-tunnel stream suitable for architectural design initial stage
Field visualized device and its application method " (application number: 201711137493.3, publication date: 2017.11.16) it is sent out by hot line
Wind environment is carried out visualization processing by cigarette system.It is 0.5~10m/s that the device, which is applicable in wind speed, and toilet's air supply velocity is
0.25~0.3m/s, this device are not suitable for the low wind speed environments of toilet.
Summary of the invention
Technical problem: the present invention relates to a kind of flow-field visualized equipment, are suitable for the steady air currents environment such as toilet.
Technical solution: the present invention discloses a kind of clean Indoor Flow Field visualization device.There are three the composition of this equipment is main
Part: smoking device, power supply, bracket.Smoking device is by nickel filament (diameter 0.5mm, long 1500mm) and glycerol (chemistry is pure) group
At；Power supply is 25V AC power source and switch；Bracket is two at a distance of the metal circular tube of 2m, two mobile folders and for tightening nickel
The spring of chromium silk (specification is 1.2mm*9mm*40mm white zine).
Cigarette line technology is that smoke oil is coated on thin heating wire, and certain voltage, oil droplet evaporation, in air-flow are led to heating wire
Guidance under, the smog of evaporation will form pipe tobacco, show fluidised form by the form of pipe tobacco.The relatively small wind in toilet
Under speed, cigarette line technology can be convenient research air flow condition.
This equipment can carry out static two dimensional imaging to toilet flow field and intuitively whether observe toilet in order to concise
It complies with standard, it is intuitive to observe the depth of parallelism, the characteristic index of three sinuous flow degree, lower limit air velocity Unidirectional air flow clean rooms in toilet.Have
Design is improved to toilet conducive to people.Which device is simple, easy to use, is suitable for this kind of steady air current in toilet
Place.
The utility model has the advantages that
The beneficial effects of the present invention are:
1, the parameters such as the depth of parallelism, sinuous flow degree, the lower limit air velocity in flow field are intuitively embodied.
2, the streamline that fluid motion can be observed, the shadow for facilitating look at human body, respectively using device for flow field in toilet
It rings.
3, the data of simulation can be verified the accuracy of simulation and be given with the flow field shown by smoke-wire method improves.
4, by the intuitive observation to fluid, clean room conditioning can further be improved.For picture
The toilet of operating room etc can infect probability by improving the reductions such as air-conditioning equipment.
5, compared to pure steam and dry ice smoke, glycerol smoke pipe tobacco is not easy to spread, is more convenient for observing.
6, the present apparatus excludes interference of the personnel to pipe tobacco using delay shooting function.
7, the smoke silk height of the present apparatus is adjustable, convenient for observing the fluidised form of different height pipe tobacco.
Detailed description of the invention
Fig. 1 is flow-field visualized equipment schematic diagram of the invention.Wherein have: video camera 1, pressure regulator 2, conducting wire 3-1, conducting wire
3-2, bracket 4-1, bracket 4-2, spring 5-1, spring 5-2, nickel filament 6, glycerol 7, metal tube 8.
Specific embodiment
The metal circular tube 4 of two root long 2m is separated by 2m, and bottom end is connected and fixed with the metal tube 8 of 2m long, in two vertical racks 4
It is upper that there are two height-adjustable mobile folder (adjustable extent is 1~2m), the mobile folder other end insulate and is connected with spring 5,
5 other end of spring is connected with nickel filament 6 and is at tense situation, is passed through by the conducting wire that the pressure regulator 2 of connection power supply stretches out
Binding clip 3 accesses nickel filament 6 in circuit.A frame video camera is placed in the place of 2.5m before 4 place plane of metallic support
1。
Camera 1 from different angles observes flow field in toilet, and camera function can reduce personnel's interference；
Pressure regulator 2 connects power supply, and by conducting wire to the power supply smoke of nickel filament 6, can pass through the voltage adjusting pipe tobacco for adjusting pressure regulator 2
Thickness and fuming rate；Bracket 4 is connected by spring 5-1,5-2 with nickel filament 6, and measurement height is adjusted；Spring 5-1,5-2 can
So that nickel filament 6 is kept elongation state, guarantees smoke effect；7 oil droplet smoke of glycerol is white cigarette, and observation is convenient, and smoke is persistently clear
It is clear.In order to facilitate observation, using black grid cloth as background, by photographic analysis, can know whether to reach in toilet
The indexs such as the depth of parallelism, sinuous flow degree, lower limit air velocity.
Claims (7)
1. a kind of visualization device suitable for clean Indoor Flow Field, it is characterised in that:
Mainly there are three parts for the composition of clean Indoor Flow Field visualization device: smoking device, power supply, bracket.The smoke dress
It sets and is connected by conducting wire with power supply；The smoking device is connected by spring with mobile folder with bracket.The round metal of two root long 2m
Pipe is separated by 2m, and bottom end is connected and fixed with the metal tube of 2m long, and there are two height-adjustable mobile folders on two vertical racks
(adjustable extent is 1~2m), the mobile folder other end insulate and are connected with spring, and the spring other end is connected with nickel filament and makes it
In tension, the conducting wire stretched out by power supply is accessed nickel filament in circuit by binding clip.It is flat where metallic support
A frame camera is placed in the place of 2.5m before face, and a black informal voucher grid cloth (3m*3m) is placed in the position of 1m later.
2. can be used for the flow-field visualized equipment of toilet as described in claim 1, it is characterised in that: background is arranged as black
Informal voucher grid.
3. can be used for the flow-field visualized equipment of toilet as described in claim 1, it is characterised in that: connected and sent out by spring
Pipe tobacco guarantees that expanded by heating pipe tobacco is constantly in tense situation.
4. can be used for the flow-field visualized equipment of toilet as described in claim 1, it is characterised in that: by controllable electric power,
Guarantee that the pipe tobacco issued is suitable for the low wind speed environments in toilet.
5. can be used for the flow-field visualized equipment of toilet as described in claim 1, it is characterised in that: moved by adjusting
Folder guarantees to be observed that the pipe tobacco in different height.
6. can be used for the flow-field visualized equipment of toilet as described in claim 1, it is characterised in that: clapped by capture delay
It takes the photograph, guarantee personnel are preferably minimized the interference of pipe tobacco.
7. can be used for the flow-field visualized equipment of toilet as described in claim 1, it is characterised in that: by smoke screen just
By the trend of cameras capture pipe tobacco entirety, guarantee is not interfered in the case where object with cameras capture to cleaning indoor air flow for side
Mobility status.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078268.1A CN109084950A (en) | 2018-09-11 | 2018-09-11 | A kind of visualization device suitable for clean Indoor Flow Field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078268.1A CN109084950A (en) | 2018-09-11 | 2018-09-11 | A kind of visualization device suitable for clean Indoor Flow Field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109084950A true CN109084950A (en) | 2018-12-25 |
Family
ID=64841658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811078268.1A Pending CN109084950A (en) | 2018-09-11 | 2018-09-11 | A kind of visualization device suitable for clean Indoor Flow Field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109084950A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441021A (en) * | 2019-08-29 | 2019-11-12 | 浙江大学 | A kind of Flat Plate Turbulent Boundary Layer flow field structure measuring device and method based on PIV |
| CN113056668A (en) * | 2019-09-06 | 2021-06-29 | 株式会社大气社 | Airflow detection device, airflow detection method, and airflow detection program |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441021A (en) * | 2019-08-29 | 2019-11-12 | 浙江大学 | A kind of Flat Plate Turbulent Boundary Layer flow field structure measuring device and method based on PIV |
| CN113056668A (en) * | 2019-09-06 | 2021-06-29 | 株式会社大气社 | Airflow detection device, airflow detection method, and airflow detection program |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181225 |
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| RJ01 | Rejection of invention patent application after publication |