CN208077018U - The hair mist concentration adjusting device of aerosol source - Google Patents
The hair mist concentration adjusting device of aerosol source Download PDFInfo
- Publication number
- CN208077018U CN208077018U CN201820603281.3U CN201820603281U CN208077018U CN 208077018 U CN208077018 U CN 208077018U CN 201820603281 U CN201820603281 U CN 201820603281U CN 208077018 U CN208077018 U CN 208077018U
- Authority
- CN
- China
- Prior art keywords
- aerosol
- plenum chamber
- branch
- source
- adjusting device
- 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.)
- Active
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of hair mist concentration adjusting devices of aerosol source, including clean compressed air source and aerosol generator, pressure regulator valve is additionally provided between clean compressed air source and the air inlet of aerosol generator, the range of regulation of pressure regulator valve is 20~1PSI；The gas outlet of aerosol generator is connected by cage wind turbine with plenum chamber, and the air inlet side in plenum chamber is additionally provided with air-flow current equalizer；Further include that 2 test interfaces are connected with plenum chamber respectively.The aerosol that clean compressed air source is formed after pressure regulator valve is by the aerosol medium atomization in aerosol generator is sent into cage wind turbine and forms uniformly mixed laminar flow aerosol after air-flow current equalizer, and the concentration range for the aerosol source stablized in plenum chamber corresponding with 20~1PSI of range of regulation of pressure regulator valve is 100 μ of μ g/L~1 g/L.As a further improvement, it is 100 to increase thinner ratio：1 aerosol diluter, so that it may so that the concentration range of aerosol source is down to 0.01 μ g/L.
Description
Technical field
The utility model is related to gauge check technologies, are to be related to one kind to calibrate for aerosol photometer more specifically
Aerosol source send out mist concentration adjusting device.
Background technology
Aerosol photometer is mainly used for the leak detection test after high efficiency particulate air filter and high efficiency particulate air filter installation.In particular, each
Pharmacy and health care enterprises and institutions require to be gradually increased for production purification region and the clean of cleaning equipment, are widely used
Aerosol photometer is detected the filtering terminal of high efficiency particulate air filter and purification class product, verifies relevant range and correlation
Equipment whether satisfaction purification require.Therefore the accuracy of aerosol photometer numerical value is directly influenced to the final of clean environment
Test result.Compared to surrounding air cleanliness factor was detected by airborne particle counter in the past, aerosol photometer can be more
Leak point and the leakage rate for intuitively accurately reflecting detected high efficiency particulate air filter keep rectifying and improving more targeted and timeliness
Property.The detection means is widely used by national standard and professional standard at present.
But the school that 100 μ g/L aerosol sources carry out the error of indication is only used at present for the calibration of aerosol photometer
Standard does not set foot in the calibration of super low concentration aerosol source.And in actual use, aerosol photometer detects when institute
The alarm detection limit provided is generally in 0.1 μ g/L hereinafter, some is even up to 0.01 μ g/L；Therefore only to 100 μ g/L high concentrations
Aerosol source carries out error of indication calibration can not reflect aerosol photometer showing at super low concentration aerosol source strictly according to the facts
It is worth accuracy.If there are deviations for indicating value accuracy of the aerosol photometer at super low concentration aerosol source, interfere with clean
The accuracy and objectivity of net environmental testing judgement.
In short, the calibration of existing aerosol photometer has the following defects；
1) calibration data is not comprehensive, influences the result that user tests clean environment.
2) the hair mistiness degree of aerosol source is unadjustable.
Utility model content
It is high for the hair mistiness degree existing in the prior art for calibrating used aerosol source for aerosol photometer
Caused calibration accuracy is not enough and the unadjustable problem of hair mistiness degree of aerosol source, the purpose of this utility model are to provide
A kind of hair mist concentration adjusting device of aerosol source.
In order to achieve the above objectives, the utility model adopts the following technical scheme：
A kind of hair mist concentration adjusting device of aerosol source, including clean compressed air source and aerosol generator, institute
It states and is additionally provided with pressure regulator valve between clean compressed air source and the air inlet of the aerosol generator, the pressure regulation model of the pressure regulator valve
It encloses for 20~1PSI；
The gas outlet of the aerosol generator is connected by cage wind turbine with plenum chamber, the air inlet in the plenum chamber
Mouth side is additionally provided with air-flow current equalizer；
Further include 2 test interfaces, 2 test interfaces are connected with the plenum chamber respectively.
Further include thinner ratio be 100：1 aerosol diluter, the air inlet of the aerosol diluter and the static pressure
Case is connected, and 2 test interfaces are connected with the gas outlet of the aerosol diluter respectively.
The aerosol diluter includes two branches in parallel, wherein being straight-through branch all the way, another way is dilution branch
Road；The dilution branch road is equipped with filter and flow regulator, and the straight-through branch road is equipped with flow regulator；
The flow value of flow regulator is 0.28L/min on the straight-through branch, flow regulator on the dilution branch
Flow value be 28.3L/min.
The aerosol diluter includes two branches in parallel, wherein being straight-through branch all the way, another way is dilution branch
Road；The dilution branch road is equipped with filter and flow regulator, and the straight-through branch road is equipped with current limiter, the current limiter
It is interior to be equipped with metering hole；
A diameter of 0.3mm of the metering hole, corresponding flow value are 0.28L/min；Flow tune on the dilution branch
The flow value for saving device is 28.3L/min.
The aerosol diluter is set in the plenum chamber.
Air outlet side in the plenum chamber is additionally provided with filter.
Compared with prior art, using a kind of hair mist concentration adjusting device of aerosol source of the utility model, cleaning pressure
The aerosol that contracting air-source is formed after pressure regulator valve is by the aerosol medium atomization in aerosol generator is sent into cage wind turbine, cage
Aerosol indentation plenum chamber after air-flow current equalizer is formed uniformly mixed laminar flow aerosol and stablized by the rotation of formula fan blade
Aerosol source, the concentration range for the aerosol source stablized in plenum chamber corresponding with 20~1PSI of range of regulation of pressure regulator valve
For 100 μ of μ g/L~1 g/L.Every magnitude tracing index of aerosol photometer to be measured can be detected on this basis
And calibration.
Scheme as a further improvement, it is 100 to increase thinner ratio：1 aerosol diluter, so that it may so that aerosol source
Concentration range be down to 0.01 μ g/L.
The utility model also has the characteristics that simple in structure easy to operate.
Description of the drawings
Fig. 1 is a kind of principle schematic of the hair mist concentration adjusting device of aerosol source of the utility model；
Fig. 2 is the principle schematic of the embodiment 1 of the aerosol diluter in Fig. 1；
Fig. 3 is the principle schematic of the embodiment 2 of the aerosol diluter in Fig. 1.
Specific implementation mode
The technical solution of the utility model is further illustrated with reference to the accompanying drawings and examples.
A kind of hair mist concentration adjusting device of aerosol source shown in please referring to Fig.1, including clean compressed air source and
Aerosol generator 12, clean compressed air source are connected by pressure regulator valve 11 with the air inlet of aerosol generator 12, pressure regulation
The range of regulation of valve 11 is 20~1PSI；The gas outlet of aerosol generator 12 is connected by cage wind turbine 13 with plenum chamber 14
Logical, the air inlet side in plenum chamber 14 is equipped with air-flow current equalizer 141, and air outlet side is equipped with filter 142.
Pressure regulation (range of regulation 20~1PSI) of the clean compressed air source through pressure regulator valve 11, will be in aerosol generator 12
Cage wind turbine 13 is sent into after aerosol medium atomization；Aerosol is pressed into plenum chamber 14, aerosol gas by the rotation of cage fan blade
Stream forms uniformly mixed aerosol by air-flow current equalizer 141, and concentration range is the 100 μ g/L of μ g/L~1, is finally passed through
The filtering of filter 142 is discharged into air.
Preferably, further include thinner ratio be 100：1 aerosol diluter 16, the air inlet of aerosol diluter 16 with it is quiet
Pressure case 14 is connected；2 test interfaces 15 are connected with the gas outlet of aerosol diluter 16 respectively.Aerosol light to be verified
Degree meter and standard aerosol photometer are connected by sampling pipe with test interface 15 respectively.It is 100 by thinner ratio：1
The concentration range of aerosol source can be down to 1 μ of μ g/L~0.01 g/L by the dilution of aerosol diluter 16.
It includes shell 166 to please refer to aerosol diluter shown in Fig. 2 again, and two branches in parallel are equipped in shell 166,
Wherein it is straight-through branch 161 all the way, another way is dilution branch 162；It dilutes branch 162 and is equipped with filter 163 and flow
Adjuster 164 leads directly to branch 161 and is equipped with flow regulator 165；It is verified by many experiments, when flow on straight-through branch 161
The flow value of adjuster 165 is 0.28L/min, when the flow value for diluting flow regulator 164 on branch 162 is 28.3L/min,
In the case where other conditions are constant, it is easier to aerosol diluter be made to obtain reliable and stable 100：1 thinner ratio.
Aerosol diluter in Fig. 1 can also use the structure such as Fig. 3 in addition to using structure shown in Fig. 2 comprising
Shell 266, shell 266 is interior to be equipped with two branches in parallel, wherein being straight-through branch 261 all the way, another way is to dilute branch
262；It dilutes branch 262 and is equipped with filter 263 and flow regulator 264, lead directly to branch 261 and be equipped with current limiter 265, limit
It flows and is equipped with metering hole in device 265.
Fig. 3 embodiments are differed only in Fig. 2 embodiments：Current limiter 265 in Fig. 3 is instead of the flow tune in Fig. 2
Save device 165.Since the diameter of metering hole is a fixed value, corresponding flow value namely one is quantitative, the reality compared to Fig. 2
Example is applied, required dilution can be more easily adjusted as long as the flow value of flow regulator on single adjusting dilution branch
Than.
In particular, its corresponding flow value is 0.28L/min in a diameter of 0.3mm of metering hole；As long as adjusting dilution
Flow regulator 264 on branch 262, make its flow value be 28.3L/min when, can make aerosol diluter obtain stabilization can
100 leaned on：1 thinner ratio.
For the ease of use and maintenance, aerosol diluter 16 can be set in plenum chamber 14.
It should be noted that filter 142,163,263 is both needed to reach requirement below：For 0.3 μm or more
The filter efficiency of particulate should be higher than that 99.99%.
For carrying out the calibration of the error of indication to the aerosol source of 0.01 μ g/L, before calibration, school aerosol will be waited for respectively
Photometer and standard aerosol photometer are connected to 2 test interfaces by sampling pipe, then open clean compressed air source and
The power supply of cage wind turbine, when being adjusted to about 1PSI by adjusting pressure regulator valve, the concentration show value of observation caliber aerosol photometer, when
When the photometric concentration show value of standard aerosol is 0.01 μ g/L, stop adjusting pressure regulator valve；Equal standard aerosols are photometric
After concentration shows value stabilization, while record waits for school aerosol photometer and the photometric show value of standard aerosol, according to two
The difference of value waits for the error of indication of school aerosol photometer to calculate.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate that this practicality is new
The purpose of type, and it is not used as the restriction to the utility model, as long as in the essential scope of the utility model, to the above
Variation, the modification of embodiment will all be fallen in the scope of the claims of the utility model.
Claims (6)
1. a kind of hair mist concentration adjusting device of aerosol source, including clean compressed air source and aerosol generator, special
Sign is,
Pressure regulator valve is additionally provided between the clean compressed air source and the air inlet of the aerosol generator, the pressure regulator valve
Range of regulation is 20~1PSI；
The gas outlet of the aerosol generator is connected by cage wind turbine with plenum chamber, the air inlet side in the plenum chamber
It is additionally provided with air-flow current equalizer；
Further include 2 test interfaces, 2 test interfaces are connected with the plenum chamber respectively.
2. hair mist concentration adjusting device according to claim 1, which is characterized in that
Further include thinner ratio be 100：1 aerosol diluter, the air inlet of the aerosol diluter and the plenum chamber phase
Connection, 2 test interfaces are connected with the gas outlet of the aerosol diluter respectively.
3. hair mist concentration adjusting device according to claim 2, which is characterized in that
The aerosol diluter includes two branches in parallel, wherein being straight-through branch all the way, another way is dilution branch；Institute
It states dilution branch road and is equipped with filter and flow regulator, the straight-through branch road is equipped with flow regulator；
The flow value of flow regulator is 0.28L/min on the straight-through branch, the stream of flow regulator on the dilution branch
Magnitude is 28.3L/min.
4. hair mist concentration adjusting device according to claim 2, which is characterized in that
The aerosol diluter includes two branches in parallel, wherein being straight-through branch all the way, another way is dilution branch；Institute
It states dilution branch road and is equipped with filter and flow regulator, the straight-through branch road is equipped with current limiter, is set in the current limiter
Restricted orifice；
A diameter of 0.3mm of the metering hole, corresponding flow value are 0.28L/min；Flow regulator on the dilution branch
Flow value be 28.3L/min.
5. hair mist concentration adjusting device according to claim 2, which is characterized in that
The aerosol diluter is set in the plenum chamber.
6. hair mist concentration adjusting device according to claim 1, which is characterized in that
Air outlet side in the plenum chamber is additionally provided with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820603281.3U CN208077018U (en) | 2018-04-25 | 2018-04-25 | The hair mist concentration adjusting device of aerosol source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820603281.3U CN208077018U (en) | 2018-04-25 | 2018-04-25 | The hair mist concentration adjusting device of aerosol source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208077018U true CN208077018U (en) | 2018-11-09 |
Family
ID=64044821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820603281.3U Active CN208077018U (en) | 2018-04-25 | 2018-04-25 | The hair mist concentration adjusting device of aerosol source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208077018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415472A (en) * | 2018-04-25 | 2018-08-17 | 上海市计量测试技术研究院 | The hair mist concentration adjusting device of aerosol source |
-
2018
- 2018-04-25 CN CN201820603281.3U patent/CN208077018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415472A (en) * | 2018-04-25 | 2018-08-17 | 上海市计量测试技术研究院 | The hair mist concentration adjusting device of aerosol source |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105738263B (en) | Suspended particulate substance detection device and detection, method for early warning in a kind of air | |
| CN109541141A (en) | A kind of small air mass monitoring system and analysis method | |
| CN106769724B (en) | Particulate matter sensor calibration system | |
| CN206020318U (en) | A kind of gas dew point analytical equipment | |
| CN110231262A (en) | A kind of civilian solid fuel ignition Air Pollutant Emission on-site detecting device | |
| CN108415472A (en) | The hair mist concentration adjusting device of aerosol source | |
| CN208077018U (en) | The hair mist concentration adjusting device of aerosol source | |
| CN104272102A (en) | System and method for monitoring corrosive contaminants in a fluid | |
| CN111122407A (en) | Testing device and testing method for measuring filtering efficiency of air filtering material | |
| CN103471876B (en) | Dilution sampling probe | |
| Tran et al. | Determining the cutoff diameter and counting efficiency of optical particle counters with an aerodynamic aerosol classifier and an inkjet aerosol generator | |
| Hapidin et al. | Development of a new personal air filter test system using a low-cost particulate matter (PM) sensor | |
| CN204085817U (en) | A kind of high efficiency particle air filter frame leak detection proving installation | |
| CN104020119A (en) | Wet type ultraviolet-absorption-method online detection method for micro-nano aerosol of production environment | |
| CN201697907U (en) | Checking apparatus of SF 6 gas leakage monitoring alarm | |
| CN109357928A (en) | The calibrating installation and its method of aerosol diluter thinner ratio | |
| CN109827880B (en) | Dust particle counter calibration device and calibration method | |
| CN202083525U (en) | On-site detection device of SF6-O2 on-line leakage monitoring alarm instrument | |
| CN108061631B (en) | Test method for measuring leakage of grate seal structure | |
| CN106226104A (en) | A kind of exsiccator energy efficiency evaluation system | |
| CN206695933U (en) | A kind of online blower fan system efficiency detection and Evaluation on Energy Saving system | |
| CN209198183U (en) | A kind of calibrating installation of aerosol diluter thinner ratio | |
| CN210221167U (en) | Complex gas flow measurer | |
| CN210486945U (en) | Gas detection device | |
| CN209342611U (en) | A kind of light path compensation system of the flue gas analyser based on ultraviolet fluorescence method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |