CN207628366U - Particles generation device for particulate component concentration calibration - Google Patents
Particles generation device for particulate component concentration calibration Download PDFInfo
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- CN207628366U CN207628366U CN201721704511.7U CN201721704511U CN207628366U CN 207628366 U CN207628366 U CN 207628366U CN 201721704511 U CN201721704511 U CN 201721704511U CN 207628366 U CN207628366 U CN 207628366U
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- mixing chamber
- air
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- atomizer
- generation device
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Abstract
A kind of particles generation device for particulate component concentration calibration, including a mixing chamber and an atomizer, the inside of mixing chamber is formed with a chamber, and air intake is equipped at the upper end of mixing chamber, air intake can be used to input dry air, and outlet is equipped at the lower end of mixing chamber.Atomizer is set at the upper end of mixing chamber, solution can be delivered to atomizer by solution atomization and to be ejected to place near to the upper end in the chamber of mixing chamber by atomizer, can be contacted with dry air when the drop of atomization is fallen downwards to form the particle that concentration is stablized with particle diameter distribution.It can be convenient for the comparison analysis and correction of subsequent online aerosol component monitor or manual film sampling as a result,.
Description
Technical field
The utility model is related to a kind of particles generation devices more particularly to a kind of facilitate to verify what particulate component concentration measured
Particles generation device for particulate component concentration calibration.
Background technology
Aerosol (aerosol) refers to a two-phase mixtures body using gas as continuous phase, shot-like particle for dispersed phase.Environment
In have the aerosol particle of various different-grain diameters and different chemical composition, can to health, weather, visibility and quality of life
Cause different degrees of influence.Recent study finds that aerosol plays key player in our complex environment, these
Particle directly affects the thermal balance of the earth by absorption, scattering and radiation, can also affect indirectly substance group a small number of in air
At causing ozone and other chemical substances to generate or destroy.
Research for aerosol, many documents have deep theoretical foundation and model, not outer for studying its property
Actual samples and telemetering, but be limited to atmospheric aerosol can with time and spatial variations, so still there are many it is uncertain because
Element can not learn in real time, such as aerosol distribution, particle size and concentration.
The constituent concentration of aerosol particle is there is no so-called primary standard product at present, therefore the verification of related equipment
It is to do parallel comparison using film (filter paper) sampling mostly.However, in such a way that film samples, needs film pre-treatment and transport film, hold
It is also easy to produce artificial error.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of particle production for particulate component concentration calibration
Generating apparatus, can be by solution atomization at drop, then after being air-dried, and then generates the particle that concentration is stablized with particle diameter distribution, with
It is convenient for subsequent comparison analysis and correction, reduces artificial generated error.
In order to solve the above technical problems, the utility model provides a kind of particle production for particulate component concentration calibration
Generating apparatus, including：The inside of one mixing chamber, the mixing chamber is formed with a chamber, and air intake is equipped at the upper end of the mixing chamber,
The air intake can be used to input dry air, which is connected with the chamber, be equipped at the lower end of the mixing chamber
Outlet, which is connected with the chamber；And an atomizer, the atomizer are set at the upper end of the mixing chamber, it can will
Principal component and the solution of concentration are delivered to the atomizer by solution atomization and to be ejected to the chamber of the mixing chamber by the atomizer
Indoor place near to the upper end can contact with dry air when the drop of atomization is fallen downwards and be stablized with particle diameter distribution with forming concentration
Particle.
Preferably, which is connected with an air dryer and an air filter.
Preferably, which includes one first air intake and two second air intakes, these first air enter
Mouth and second air intake are connected with the air dryer and the air filter, and the air filter is for filtering out particle.
Preferably, place near to the upper end is equipped with a partition board in the chamber of the mixing chamber, and the partition board is by place near to the upper end in the chamber
It is separated into an inner ring inlet plenum and an outer shroud inlet plenum, it, should at the indoor center of chamber which is located at the mixing chamber
Outer shroud inlet plenum is located at the outside of the inner ring inlet plenum, and the bottom of the inner ring inlet plenum and the outer shroud inlet plenum is opening-like, should
Inner ring inlet plenum and the outer shroud inlet plenum are connected with first air intake and two second air intakes respectively.
Preferably, which is set to the both sides at the upper end of the mixing chamber, which sets
Side at the upper end of the mixing chamber, and positioned at the top of the second air intake, first air intake is close to the atomization
Device.
Preferably, which is a ultrasonic spray device, which there is a nozzle, the nozzle to be located at the mixing chamber
Chamber in place near to the upper end, place near to the upper end and led equipped with one at the periphery of the nozzle of the atomizer in the chamber of the mixing chamber
Gas cup, the air guide cup are positioned apart from the periphery of the nozzle, and the internal diameter of the air guide cup is in downward gradually-reducing shape, the inner ring air inlet
Room is connected by the inside of the air guide cup with first air intake.
Preferably, which is a ultrasonic spray device, which there is a nozzle, the nozzle to be located at the mixing chamber
Chamber in place near to the upper end, place near to the upper end and led equipped with one at the periphery of the nozzle of the atomizer in the chamber of the mixing chamber
Gas cup, the air guide cup interval are set at the periphery of the nozzle, and the internal diameter of the air guide cup is in downward gradually-reducing shape.
Preferably, a needle body is arranged in the inside of the atomizer, which is arranged in the runner inside the atomizer, should
Needle body extends in the nozzle.
Preferably, which is multiple piece construction, which includes multiple cylinders, and multiple cylinders mutually concatenate, more
It is combined respectively with Quick-disassembling mechanism between a cylinder.
Preferably, a taper portion is formed at the lower end of the mixing chamber, the internal diameter of the taper portion is in downward gradually-reducing shape, the outlet
Positioned at the lower end of the taper portion, the outlet is for connecting online aerosol component monitor or manual film sampling to be compared.
The beneficial effects of the utility model：
The utility model particles generation device, including mixing chamber and atomizer prepare principal component and the solution of concentration, then
When solution is delivered to atomizer, can by atomizer by solution atomization at drop, and be ejected in the chamber of mixing chamber on close
At end, the drop being then atomized can be fallen because of gravity.Dry air can transport to place near to the upper end in the chamber of mixing chamber simultaneously,
And dry air flows downward, the drop contact of dry air and atomization makes drop be dried during falling down, you can
The particle that concentration and particle diameter distribution are stablized is generated, to carry out subsequent online aerosol component monitor or manual film sampling
Compare analysis and correction.The solution composition concentration, flow velocity and air velocity can all need in response to correction and adjust and change.
For the enabled feature and technology contents for being further understood that the utility model, please refer to below in connection with the utility model
Detailed description and accompanying drawings, however, the drawings only provide reference and explanation, not be used for the utility model is limited.
Description of the drawings
Fig. 1 is the stereogram of the particles generation device of the utility model.
Fig. 2 is the front view of the particles generation device of the utility model.
Fig. 3 is the sectional view of the III-III of Fig. 2.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the stereogram of another embodiment of the particles generation device of the utility model.
Specific implementation mode
It please referring to Fig.1 to Fig.4, the utility model provides a kind of particles generation device for particulate component concentration calibration,
Including a mixing chamber 1 and an atomizer 2.
The mixing chamber 1 is a ducted body, which is preferably in a cylinder.Mixing chamber 1 can be multiple piece construction, also
It may include multiple cylinders 101,102,103 and 104, these cylinders 101,102,103 and 104 mutually concatenate, these cylinders
101, it is combined respectively with Quick-disassembling mechanism 105 between 102,103 and 104, in order to assemble and dismantle, so as to convenient carrying,
The utility model is set to form a portable particles generation device.
The mixing chamber 1 can be in upright setting, that is, the axial line 106 of the mixing chamber 1 can be perpendicular to horizontal plane.The mixing
The inside of chamber 1 is formed with a chamber 11, is equipped with air intake 12 at the upper end of mixing chamber 1, air intake 12 is connected with chamber 11
It is logical, it can be used for inputting dry air.Air intake 12 can be with an air dryer 3 and an air filter 4 (as shown in Figure 5)
It is connected, in the present embodiment, air intake 12 may include one first air intake 121 and two second air intakes 122, this
A little first air intakes 121 and second air intake 122 are connected with air dryer 3 and air filter 4, in order to input
In air to chamber 11 after dry and peace and quiet, the accuracy for influencing to compare analysis is entered to avoid extraneous particle.
In the present embodiment, place near to the upper end is equipped with a partition board 13 in the chamber 11 of the mixing chamber 1, and partition board 13 can be in hollow
It is cylindric, place near to the upper end in chamber 11 is separated into an inner ring inlet plenum 14 and an outer shroud inlet plenum 15, inner ring inlet plenum 14
At the center in the chamber 11 of mixing chamber 1, that is, inner ring inlet plenum 14 and mixing chamber 1 can be same axial line 106, outer shroud
Inlet plenum 15 is located at the outside of inner ring inlet plenum 14.Inner ring inlet plenum 14 and outer shroud inlet plenum 15 respectively with the first air intake
121 and second air intake 122 be connected so that air can be delivered to inner ring inlet plenum 14 and outer shroud inlet plenum 15 respectively.It is interior
The bottom of ring inlet plenum 14 and outer shroud inlet plenum 15 is opening-like so that is delivered to inner ring inlet plenum 14 and outer shroud inlet plenum 15
Air can flow downward.
Outlet 16 is equipped at the lower end of the mixing chamber 1, which is connected with chamber 11, it is preferable that outlet 16 is located at
At lower end at the center of the chamber 11 of mixing chamber 1, that is, it can be same axial line 106 to export 16 with mixing chamber 1.Mixing chamber 1
Lower end at can form a taper portion 17, the internal diameter of taper portion 17 is in downward gradually-reducing shape, and outlet 16 is located at the lower ends of taper portion 17,
The outlet 16 of the mixing chamber 1 may connect to Devices to test appropriate, which can be used for connecting online aerosol component monitoring
Instrument or manual film sampling are compared and are used.
The air dryer 3 and air filter 4 be connected to mixing chamber 1 air intake 12 (the first air intake 121 and
Second air intake 122), which can be a drying tube, can be by the sky outside the input of one end of air dryer 3
Gas, air export after the drying of air dryer 3, then by the other end of air dryer 3.
The air filter 4 can be a HEPA filters, which can be used to filter out the particle in air.It should
One end of air filter 4 is communicated in the other end of air dryer 3, and the other end of the air filter 4 is then communicated in mixing
The air intake 12 of chamber 1, the mode of communicating can be connected to pipeline.Two second air intakes 122 can be set to mixing chamber 1
Upper end at both sides, the first air intake 121 can be set to mixing chamber 1 upper end at side, and be located at second air intake
122 top, the first air intake 121 can be close to atomizers 2.The other end of the air filter 4 is communicated in this with pipeline 41
A little first air intakes 121 and second air intake 122.
Solution (principal component and the solution of concentration) can be atomized by the atomizer 2, and in the present embodiment, atomizer 2 can be
One ultrasonic spray device, the atomizer 2 are set at the upper end of mixing chamber 1, which is connected to pumping (figure omits), the pump
Pu can be that plunger pumps, and can solution be delivered to atomizer 2 by pumping.The atomizer 2 has a nozzle 21,21, the nozzle
In place near to the upper end in the chamber 11 of mixing chamber 1, in the present embodiment, nozzle 21 is located in the inner ring inlet plenum 14 of mixing chamber 1, and
Nozzle 21 is located at the center of the inner ring inlet plenum 14 of mixing chamber 1.A needle body also can be further arranged in the inside of the atomizer 2
22, needle body 22 is arranged in the runner 23 inside atomizer 2, and needle body 22 also extends in nozzle 21, and needle body 22 can make runner 23
Reduced cross-sectional area, the flow rate for controlling solution keeps system relatively stable.
The place near to the upper end in the chamber 11 of the mixing chamber 1 can be also further provided at the periphery of the nozzle 21 of atomizer 2
One air guide cup 18, the air guide cup 18 are positioned apart from the periphery of nozzle 21, and air guide cup 18 can be tapered, that is, air guide cup 18
Internal diameter be in downward gradually-reducing shape, inner ring inlet plenum 14 is connected with the first air intake 121 by the inside of air guide cup 18, can be led to
Crossing the guiding of air guide cup 18 makes air inlet more concentrate, and the solution of atomization is effectively coated.
The type of the utility model solution is not intended to limit, such as can be the solution such as salt.When solution is conveyed by pumping
When to atomizer 2, can by atomizer 2 by solution atomization at drop, and be ejected to by atomizer 21 chamber 11 of mixing chamber 1
Interior place near to the upper end, the drop being then atomized can be fallen because of gravity.It is dried by air dryer 3 and air filter 4 and peace and quiet
Air afterwards can transport to place near to the upper end in the chamber 11 of mixing chamber 1, and dry air can flow downward, dry air with
The drop contact of atomization makes drop be dried during falling down, you can generates the particle that concentration is stablized with particle diameter distribution, example
Particle diameter distribution can such as be generated in 2.5 μm of particles below, make size tunable system in fixed range, it is subsequent online to carry out
The comparison analysis and correction that aerosol component monitor or manual film sample, reduce artificial generated error.The solution at
Divide concentration, flow velocity and air velocity that can all be needed in response to correction and adjusts and change.
However the above is only the preferred embodiment of the present invention, is not intended to the patent protection of limitation the utility model
Range, therefore every equivalence changes carried out by with the utility model specification and accompanying drawing content, are similarly all contained in this practicality
In novel rights protection scope, illustrate hereby.
Claims (10)
1. a kind of particles generation device for particulate component concentration calibration, which is characterized in that the particles generation device includes：
The inside of one mixing chamber, the mixing chamber is formed with a chamber, and air intake is equipped at the upper end of the mixing chamber, described
Air intake can be used to input dry air, and the air intake is connected with the chamber, at the lower end of the mixing chamber
Equipped with outlet, the outlet is connected with the chamber；And
One atomizer, the atomizer are set at the upper end of the mixing chamber, can convey principal component and the solution of concentration
To the atomizer by the solution atomization and to be ejected in the chamber of the mixing chamber on close by the atomizer
It can be contacted with dry air at end, when the drop of atomization is fallen downwards to form the particle that concentration is stablized with particle diameter distribution.
2. particles generation device according to claim 1, which is characterized in that the air intake and an air dryer and
One air filter is connected.
3. particles generation device according to claim 2, which is characterized in that the air intake enters comprising one first air
Mouthful and two second air intakes, first air intake and the second air intake and the air dryer and described
Air filter is connected, and the air filter is for filtering out particle.
4. particles generation device according to claim 3, which is characterized in that nearly upper end in the chamber of the mixing chamber
Place is equipped with a partition board, and place near to the upper end in the chamber is separated into an inner ring inlet plenum and an outer shroud inlet plenum by the partition board,
The inner ring inlet plenum is located at the indoor center of the chamber of the mixing chamber, the outer shroud inlet plenum be located at the inner ring into
The bottom of the outside of gas chamber, the inner ring inlet plenum and the outer shroud inlet plenum is opening-like, the inner ring inlet plenum and described
Outer shroud inlet plenum is connected with first air intake and two second air intakes respectively.
5. particles generation device according to claim 4, which is characterized in that two second air intakes are set to described
Both sides at the upper end of mixing chamber, first air intake are set to the side at the upper end of the mixing chamber and positioned at described the
The top of two air intakes, first air intake is close to the atomizer.
6. particles generation device according to claim 4, which is characterized in that the atomizer is a ultrasonic spray device,
The atomizer has a nozzle, and the nozzle is located at place near to the upper end in the chamber of the mixing chamber, in the mixing chamber
Chamber in place near to the upper end and at the periphery of the nozzle of the atomizer be equipped with an air guide cup, air guide cup compartment of terrain
It is set at the periphery of the nozzle, the internal diameter of the air guide cup is in downward gradually-reducing shape, and the inner ring inlet plenum is led by described
The inside of gas cup is connected with first air intake.
7. particles generation device according to claim 1, which is characterized in that the atomizer is a ultrasonic spray device,
The atomizer has a nozzle, and the nozzle is located at place near to the upper end in the chamber of the mixing chamber, in the mixing chamber
The chamber in place near to the upper end and an air guide cup is equipped at the periphery of the nozzle of the atomizer, between the air guide cup
It is set at the periphery of the nozzle every ground, the internal diameter of the air guide cup is in downward gradually-reducing shape.
8. the particles generation device described according to claim 6 or 7, which is characterized in that a needle is arranged in the inside of the atomizer
Body, the needle body are arranged in the runner inside the atomizer, and the needle body extends in the nozzle.
9. particles generation device according to claim 1, which is characterized in that the mixing chamber is multiple piece construction, described
Mixing chamber includes multiple cylinders, and the multiple cylinder is mutually concatenated, combined respectively with Quick-disassembling mechanism between the multiple cylinder.
10. particles generation device according to claim 1, which is characterized in that form a cone at the lower end of the mixing chamber
The internal diameter in shape portion, the taper portion is in downward gradually-reducing shape, and the outlet is positioned at the lower end of the taper portion, and the outlet is for connecting
Line aerosol component monitor or manual film sampling are connected on to be compared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721704511.7U CN207628366U (en) | 2017-12-08 | 2017-12-08 | Particles generation device for particulate component concentration calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721704511.7U CN207628366U (en) | 2017-12-08 | 2017-12-08 | Particles generation device for particulate component concentration calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207628366U true CN207628366U (en) | 2018-07-20 |
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ID=62862612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721704511.7U Expired - Fee Related CN207628366U (en) | 2017-12-08 | 2017-12-08 | Particles generation device for particulate component concentration calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207628366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624144A (en) * | 2020-06-17 | 2020-09-04 | 北京雪迪龙科技股份有限公司 | Calibration device and method for particulate matter monitor |
-
2017
- 2017-12-08 CN CN201721704511.7U patent/CN207628366U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624144A (en) * | 2020-06-17 | 2020-09-04 | 北京雪迪龙科技股份有限公司 | Calibration device and method for particulate matter monitor |
| CN111624144B (en) * | 2020-06-17 | 2023-09-29 | 北京雪迪龙科技股份有限公司 | Calibrating device and method for particulate matter monitor |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 Termination date: 20201208 |