CN108931388A - For detecting the test macro of air purifier - Google Patents
For detecting the test macro of air purifier Download PDFInfo
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- CN108931388A CN108931388A CN201810524285.7A CN201810524285A CN108931388A CN 108931388 A CN108931388 A CN 108931388A CN 201810524285 A CN201810524285 A CN 201810524285A CN 108931388 A CN108931388 A CN 108931388A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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Abstract
The present invention provides a kind of for detecting the test macro of air purifier, is related to air purification field.The test macro for being used to detect air purifier of the invention, including particle image velocimetry unit and particulate matter measuring unit.Particle image velocimetry unit is measured for Fluid Mechanics velocity vector；Particle image speed-measuring system can measure the speed of all the points in predeterminable area within a preset time, and calculate flow characteristic according to speed；Particulate matter measuring unit is used to provide DC high-voltage power supply to particle image velocimetry unit and particulate matter measuring unit for measuring the number concentration of particulate matter in air purifier, carrying capacity and classification collection efficiency, power-supply system.Using particle image velocimetry unit and particulate matter measuring unit, the quality of air after purification can be effectively monitored.
Description
Technical field
The present invention relates to air purification fields, more particularly to a kind of for detecting the test macro of air purifier.
Background technique
Currently, the lower temperature plasma technology based on gas discharge, is applied in fields such as deodorization, removal VOCs,
It is considered as the High Technology on Environmental Protection that there is application prospect in a kind of pole.Low temperature plasma is the gas of partial ionization, can be
Apply high-voltage discharge between two electrodes to generate, it contains charged particle abundant, high energy electron and active particle, such as freely
Base, excited atom and molecule etc..The atom or molecule of excitation state generate various light radiation during electron transition.Plasma
Body is generated by high-voltage discharge, along with also strong-electromagnetic field, fuel factor, shock wave etc. physical effects of these chemical effects.
Suchlike physicochemical characteristic can produce huge energy and interrupt the chemical reaction that chemical bond does many complexity, low temperature etc.
Gas ions show reveal can rapidly it is sterilized and processing combined pollution effect.For many years, scientists from all over the world believe always
Low temperature plasma is a unique technical method of synchronous degradation combined pollutant, experimental study [3 () _ 34]
Confirm that low temperature plasma can be simultaneously by PM2.5, SOx, NOx, VOCs, H2S, dioxin, the heavy metal (Hg) in exhaust gas
Deng handling simultaneously.
But since the equipment that the air purifier of each producer uses is different, so its effect is also not quite similar, because
This, needs to detect it, to ensure that it reaches default effect.
Summary of the invention
It is a kind of for detecting the test macro of air purifier it is an object of the present invention to provide, to solve existing skill
The irregular problem of air purifier quality in art.
Particularly, the present invention provides a kind of for detecting the test macro of air purifier, including：
Particle image velocimetry unit is measured for Fluid Mechanics velocity vector；The particle image speed-measuring system
The speed of all the points in predeterminable area can be measured within a preset time, and flow characteristic is calculated according to the speed；
Particulate matter measuring unit is collected for measuring the number concentration of particulate matter in air purifier, carrying capacity and classification
Efficiency,
Power-supply system, for providing DC high-voltage to the particle image velocimetry unit and the particulate matter measuring unit
Source.
Optionally, the particle image velocimetry unit includes：Isochronous controller, illumination laser, light-conducting arm, blower, meter
Calculation machine and figure collection plate, computer, reaction unit, produce cigarette device, oscillograph and high voltage power supply at high-speed figure camera.
Optionally, the isochronous controller is used for synchronous triggering signal, so that the high-speed figure camera and laser illuminator
Device keeps fully synchronized.
Optionally, the illumination laser is Nd:YAG Double-pulse laser.
Optionally, the test condition of the particle image velocimetry unit is normal pressure, 20 DEG C and relative humidity 30%.
Optionally, the measuring system includes：Vacuum pump, electrostatic low pressure ram, computer, diluter, pressure control
Device, oil water separator, air compressor machine, heating tape, sampling head.
Optionally, the electrostatic low pressure ram is made of plural serial stage, exhausted using polytetrafluoroethylene material between every grade
Edge and it is respectively connected with electrometer.
Optionally, the power supply unit is direct-current superposition pulse power source system, and DC power supply and the pulse power therein are mutual
Do not interfere and be independent of each other, can individually adjust voltage value.
The test macro for being used to detect air purifier of the invention, including particle image velocimetry unit and particulate matter measurement
Unit.Particle image velocimetry unit is measured for Fluid Mechanics velocity vector；Particle image speed-measuring system can be default
The speed of all the points in predeterminable area is measured in time, and flow characteristic is calculated according to speed；Particulate matter measuring unit is for surveying
The number concentration of particulate matter in air purifier, carrying capacity and classification collection efficiency are measured, power-supply system is used to survey particle picture
Fast unit and particulate matter measuring unit provide DC high-voltage power supply.Using particle image velocimetry unit and particulate matter measuring unit,
The quality of air after purifying can effectively be monitored.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is according to an embodiment of the invention for detecting the schematic structure of the test macro of air purifier
Figure.
Specific embodiment
Fig. 1 is according to an embodiment of the invention for detecting the schematic structure of the test macro of air purifier
Figure.As shown in Figure 1, the test macro for being used to detect air purifier of the invention, including particle image velocimetry unit 1 and particle
Object measuring unit 2.Particle image velocimetry unit 1 is measured for Fluid Mechanics velocity vector.Particle image speed-measuring system
The speed of all the points in predeterminable area can be measured within a preset time, and flow characteristic is calculated according to speed.Particulate matter measurement is single
Member 2 is for measuring the number concentration of particulate matter in air purifier, carrying capacity and classification collection efficiency.Power-supply system 3 for pair
Particle image velocimetry unit 1 and particulate matter measuring unit 2 provide DC high-voltage power supply.Using particle image velocimetry unit 1 and
Grain object measuring unit 2, can effectively monitor the quality of air after purification.
In one further embodiment, particle image velocimetry unit 1 includes：Isochronous controller, is led at illumination laser
Light arm, blower, computer and figure collection plate, computer, reaction unit, produce cigarette device, oscillograph and height at high-speed figure camera
Voltage source.
In one further embodiment, isochronous controller be used for synchronous triggering signal so that high-speed figure camera and
Illumination laser keeps fully synchronized.
In one further embodiment, illumination laser Nd:YAG Double-pulse laser.
Optionally, the test condition of particle image velocimetry unit 1 is normal pressure, 20 DEG C and relative humidity 30%.
In one further embodiment, measuring system includes：Vacuum pump, electrostatic low pressure ram, computer, dilution
Device, pressure controller, oil water separator, air compressor machine, heating tape, sampling head.
In one further embodiment, electrostatic low pressure ram is made of plural serial stage, and poly- four are used between every grade
Fluoride material insulate and is respectively connected with electrometer.
In one further embodiment, power supply unit is direct-current superposition pulse power source system 3, DC power supply therein
With the pulse power is non-interference is independent of each other, can individually adjust voltage value.
The principle of particle image velocimetry is as follows：Reactor experimental system is placed under the sheet laser of PIV test macro, is hung down
It directly just focuses on sheet laser in the CCD camera of sheet laser lasing area, the short interval laser of two beams that laser is launched passes through
Light-conducting arm projects space to be measured in reactor, and the moxa-moxibustion cigarette trace particle that low speed laminar motion is done in equal sentence distribution in reactor dissipates
It penetrates, under the triggering of isochronous controller, CCD camera is continuously taken the photograph of the trace particle in the same face under two beam laser irradiations
Piece.It is being arranged in advance across in frame time, CCD camera shoots a pair of of photo, and photo, which synchronizes, to be stored in calculator memory, then
Image preprocessing, iteration meter are carried out to the specified region of a pair of of photo using the particle picture analysis system software of system support
Calculate, window deformation algorithm and etc. the instantaneous velocity vector data in flow field are calculated, then the vector file being calculated is led
Enter to Tecpl 〇 t360 software further calculate processing obtain the instantaneous velocity vector figure of reactor flow field, speed cloud atlas and
Move motion pattern.
The principle of particulate matter measurement is as follows：
Firstly, after the particulate matter after reactor in segment pipe enters standard sample device, successively being passed through under the action of vacuum pump
Cross diluter, at the same air compressor machine air is compressed after become clean air, the control of pressure controller after oil water separator
It makes certain tolerance and particulate matter is sufficiently mixed certain 8.34 times of dilution, the particulate matter after dilution enters in ELPI along channel, obtains
To the Cut size magnitude of current of particulate matter.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (8)
1. a kind of for detecting the test macro of air purifier, which is characterized in that including：
Particle image velocimetry unit is measured for Fluid Mechanics velocity vector；The particle image speed-measuring system can be
The speed of all the points in predeterminable area is measured in preset time, and flow characteristic is calculated according to the speed；
Particulate matter measuring unit, for measuring the number concentration of particulate matter in air purifier, carrying capacity and classification collection efficiency,
Power-supply system, for providing DC high-voltage power supply to the particle image velocimetry unit and the particulate matter measuring unit.
2. test macro according to claim 1, which is characterized in that
The particle image velocimetry unit includes：Isochronous controller, illumination laser, light-conducting arm, blower, computer and figure are adopted
Collect plate, high-speed figure camera, computer, reaction unit, produce cigarette device, oscillograph and high voltage power supply.
3. test macro according to claim 2, which is characterized in that
The isochronous controller is used for synchronous triggering signal, so that the high-speed figure camera and illumination laser keep completely same
Step.
4. test macro according to claim 3, which is characterized in that
The illumination laser is Nd:YAG Double-pulse laser.
5. test macro according to claim 1, which is characterized in that
The test condition of the particle image velocimetry unit is normal pressure, 20 DEG C and relative humidity 30%.
6. test macro according to claim 1, which is characterized in that the measuring system includes：Vacuum pump, electrostatic low pressure
Ram, computer, diluter, pressure controller, oil water separator, air compressor machine, heating tape, sampling head.
7. test macro according to claim 6, which is characterized in that
The electrostatic low pressure ram is made of plural serial stage, using polytetrafluoroethylene material insulation and respectively connection between every grade
There is electrometer.
8. test macro according to claim 1, which is characterized in that
The power supply unit is direct-current superposition pulse power source system, the non-interference mutual not shadow of DC power supply and the pulse power therein
It rings, can individually adjust voltage value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810524285.7A CN108931388A (en) | 2018-05-28 | 2018-05-28 | For detecting the test macro of air purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810524285.7A CN108931388A (en) | 2018-05-28 | 2018-05-28 | For detecting the test macro of air purifier |
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| CN108931388A true CN108931388A (en) | 2018-12-04 |
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| CN201810524285.7A Pending CN108931388A (en) | 2018-05-28 | 2018-05-28 | For detecting the test macro of air purifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043025A (en) * | 2020-01-06 | 2020-04-21 | 华南理工大学 | High-low temperature test box of air compressor |
| CN114002457A (en) * | 2021-11-17 | 2022-02-01 | 北京航空航天大学 | Particle image velocimeter |
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|---|---|---|---|---|
| CN111043025A (en) * | 2020-01-06 | 2020-04-21 | 华南理工大学 | High-low temperature test box of air compressor |
| CN111043025B (en) * | 2020-01-06 | 2024-04-26 | 华南理工大学 | High-low temperature test box of air compressor |
| CN114002457A (en) * | 2021-11-17 | 2022-02-01 | 北京航空航天大学 | Particle image velocimeter |
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