CN216572994U - Submicron monodisperse aerosol generating device and system - Google Patents
Submicron monodisperse aerosol generating device and system Download PDFInfo
- Publication number
- CN216572994U CN216572994U CN202121868855.8U CN202121868855U CN216572994U CN 216572994 U CN216572994 U CN 216572994U CN 202121868855 U CN202121868855 U CN 202121868855U CN 216572994 U CN216572994 U CN 216572994U
- Authority
- CN
- China
- Prior art keywords
- aerosol
- sheath gas
- needle
- inlet
- air
- 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
Images
Landscapes
- Nozzles (AREA)
Abstract
The utility model discloses a submicron monodisperse aerosol generating device and system, which comprises a liquid inlet structure, an aerosol generating structure, a sheath gas protecting structure, an aerosol drying structure and an aerosol static neutralizing structure, wherein the liquid inlet structure comprises a capillary liquid inlet needle, and a sample solution enters from the liquid inlet end of the capillary liquid inlet needle; the submicron monodisperse aerosol generating device and system can generate stable and uniform submicron monodisperse aerosol, and the concentration is controllable.
Description
Technical Field
The utility model relates to the technical field of aerosol generating equipment, in particular to a submicron monodisperse aerosol generating device and system.
Background
The rapid development of modern industries such as electronics, medicine, precision instruments, aerospace and other industries makes the control of the size and quantity of suspended particles in air environment become stricter and the performance requirements of high efficiency air filters become higher and higher, so that advanced testing methods and testing means are required to ensure the quality of the high efficiency air filters so as to meet the high standard requirements. The particle counting method has become a mainstream test method for high-efficiency filters in the world today due to its advantages of high detection sensitivity, large choice of aerosol, etc., and is adopted in many countries in europe and america. The sodium flame method and the oil mist method are high-efficiency air filter testing methods specified by the current national standard in China, and the methods have not been revised for more than ten years and cannot completely meet the requirements of actual development. In order to promote the development of the filter industry in China, improve the quality of filter products and meet international standards, the repair and compilation work of the national standard of 'high-efficiency air filter performance test method' is started in 2005. In the national standard repair and compilation process, a particle counting method needs to be researched, and for the research of a filter performance test method, one of the problems to be solved is to test the stable generation of aerosol, namely to develop an aerosol generator capable of generating aerosol particles meeting the test requirements.
In the prior art, the method can be classified into a dispersion method and an agglomeration method according to the external force used for generating particles. The dispersion method is a method of crushing a solid material to form dispersed particles by applying an external force by physical action such as extrusion or grinding, or a method of crushing a solid material to form dispersed particles by passing compressed air through a nozzle of a nebulizer and using a shearing force of the nozzle. Coacervation is the formation of solid or liquid gaseous aerosol particles by a physicochemical reaction, such as by vaporizing a brine and drying the vapor-saturated aerosol to form the desired aerosol particles. Depending on the degree of dispersion of the aerosol particles that occur, they are classified into monodisperse aerosol and polydisperse aerosol generation. The prior art mainly comprises the following steps: 1. spraying method: the simplest method of generating a liquid aerosol is to use a compressed air spray, common types of sprayers being compressed air sprays, rotary sprays and rotating disc sprays. In any method, the generation principle and the structure are relatively simple and easy to realize. However, the disadvantage is also evident in that aerosols generated by this type of nebulizer are generally polydisperse aerosols, the particle size and the degree of dispersion of which are not adjustable. The method cannot be applied to a use scene with higher requirements on the particle size and the dispersity of the aerosol. 2. A vibrating hole method: the vibrating orifice method allows monodisperse aerosols to be generated, and the concentration, particle size, degree of dispersion are known and stable and are highly accurate. However, the disadvantage is that the concentration of the generated monodisperse aerosol is too low, about 1000 particles/cubic centimeter, and the generated particle size is generally 0.5-50 microns, and particles with smaller particle size cannot be generated, so that the method cannot be applied to some use occasions requiring high aerosol concentration. 3. Condensation method: the condensation method can generate submicron aerosol particles with high concentration, and is widely used for efficiency test of filter materials and filters or aerosol research, but has the defects of high requirement on environment and incapability of stably generating submicron aerosol.
SUMMERY OF THE UTILITY MODEL
The present invention provides a submicron monodisperse aerosol generating device and system that overcomes the above-mentioned shortcomings of prior art aerosol generating devices.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a submicron monodisperse aerosol generating device comprises a liquid inlet structure, an aerosol generating structure, a sheath gas protecting structure, an aerosol drying structure and an aerosol static neutralizing structure,
the liquid inlet structure comprises a capillary liquid inlet needle, and a sample solution enters from the liquid inlet end of the capillary liquid inlet needle;
the aerosol generating structure comprises an aerosol generating chamber and a high-voltage power supply module, the liquid inlet end and the liquid outlet end of the capillary tube extend into the aerosol generating chamber, the high-voltage power supply module is used for generating an electric field in the aerosol generating chamber, and a sample solution in the liquid inlet end and the liquid outlet end of the capillary tube is drawn out under the action of the electric field to form a Taylor cone and continuously disperse submicron aerosol with uniform particle size;
the sheath gas protection structure comprises a sheath gas inlet and a sheath gas channel structure, the sheath gas inlet is connected with the inlet of the sheath gas channel structure, the outlet of the sheath gas channel structure is communicated with the aerosol generation chamber, the sheath gas channel structure is arranged in the direction of the capillary liquid inlet needle, and the sheath gas enters the sheath gas channel structure from the sheath gas inlet and forms a gas column to uniformly wrap the capillary liquid inlet needle;
the aerosol drying structure comprises at least one aerosol through hole and a drying chamber, an aerosol air outlet nozzle is arranged on the side wall of the drying chamber, and the submicron aerosol carried by the air column enters the drying chamber through the aerosol through hole to be dried;
the aerosol electrostatic neutralization structure is used for carrying out electrostatic neutralization on the dried aerosol.
Further: the feed liquor structure still includes capillary feed liquor needle adjust knob and feed liquor fixing base, the capillary feed liquor needle is fixed on the capillary feed liquor needle adjust knob, be provided with the stock solution chamber in the capillary feed liquor needle adjust knob, capillary feed liquor needle feed liquor end with the stock solution chamber communicates with each other, be provided with inlet one on the feed liquor fixing base, be provided with inlet two on the capillary feed liquor needle adjust knob lateral wall, inlet two respectively with inlet one with the stock solution chamber communicates with each other.
Further: the high voltage power supply module includes the polar plate and does the power supply that the polar plate provided the power, the polar plate sets up aerosol takes place indoor with the liquid end relative one side is gone out to the capillary feed liquor needle, power supply does the polar plate power supply with polar plate department produces the electric field.
Further: still be provided with the waste liquid mouth on the lateral wall under the feed liquor fixing base, the waste liquid mouth with the stock solution chamber communicates with each other for discharge excessive sample solution.
Further: the sheath gas includes a high temperature dry gas or carbon dioxide.
Further: the aerosol static neutralization structure comprises an electrode needle, an air inlet nozzle and an air inlet channel, wherein the electrode needle is connected with a static elimination device, the air inlet channel is connected with the air inlet nozzle and the drying chamber, a needle head of the electrode needle extends into the air inlet channel, and the electrode needle is electrified to ionize air so as to neutralize the charge of the aerosol in the drying chamber.
According to another aspect of the present invention, there is also provided a submicron monodisperse aerosol generating system, the system comprising the above-mentioned submicron monodisperse aerosol generating device, and additionally comprising: a sheath gas supply structure and an air supply structure,
the sheath gas supply structure comprises a sheath gas tank, a sheath gas flow regulating valve, a sheath gas flowmeter and a sheath gas filter, the sheath gas tank, the sheath gas flow regulating valve, the sheath gas flowmeter and the sheath gas filter are sequentially connected, and the sheath gas filter is also connected with the sheath gas inlet;
the air supply structure comprises an air flow meter and an air filter, the air flow meter is respectively connected with an air source and the air filter, and the air filter is further connected with the air inlet nozzle.
Further: the aerosol photometer is used for detecting the concentration of the aerosol output by the aerosol air outlet nozzle.
Further: the capillary liquid inlet needle is connected with the sample solution bottle through the liquid injection pump.
By adopting the technical scheme, the beneficial effects are as follows:
1. the monodisperse aerosol with specific particle size can be automatically generated by controlling the electric field intensity, and meanwhile, the generation, drying and static neutralization integrated design is adopted, so that the timeliness and the accuracy of detection are improved.
2. The generated aerosol has low concentration, does not need to be diluted, can be directly used for the inspection and calibration of a rear-end instrument, and has convenient use, time saving and labor saving.
3. Different types of aerosols such as salt aerosols, oily aerosols and standard particle aerosols can be generated according to different sample solutions, and the method has good universality.
Drawings
FIG. 1 is a schematic structural view of a submicron monodisperse aerosol generating device according to example 1 of the present invention;
FIG. 2 is a cross-sectional view of a submicron monodisperse aerosol generating device of example 1 of the present invention;
FIG. 3 is a schematic structural diagram of a capillary feed pin adjustment knob in the submicron monodisperse aerosol generating apparatus according to embodiment 1 of the present invention;
FIG. 4 is a schematic structural view of a through hole in a submicron monodisperse aerosol generating device according to example 1 of the present invention;
FIG. 5 is a schematic structural diagram of a sheath gas channel structure in a submicron monodisperse aerosol generating device in accordance with example 1 of the present invention;
FIG. 6 is a schematic diagram of the sheath flow in the submicron monodisperse aerosol generating device of example 1 of the present invention;
FIG. 7 is a schematic view showing the flow of aerosol into a drying chamber in the submicron monodisperse aerosol generating apparatus according to example 1 of the present invention;
FIG. 8 is a schematic structural diagram of a submicron monodisperse aerosol generation system in example 2 of the present invention.
In the figure, 11-capillary liquid inlet needle, 12-capillary liquid inlet needle adjusting knob, 13-liquid inlet fixing seat, 14-liquid inlet I, 15-liquid inlet II, 16-liquid storage cavity, 17-waste liquid port, 18-through hole, 181-first end, 182-second end, 2-aerosol generating chamber, 3-polar plate, 41-sheath gas inlet, 421-first sheath gas channel, 422-second sheath gas channel, 423-third sheath gas channel, 51-aerosol through hole, 52-drying chamber, 61-electrode needle, 62-air inlet nozzle, 63-air inlet channel, 64-aerosol outlet nozzle, 71-liquid injection pump, 72-waste liquid bottle, 81-sheath gas tank, 82-sheath gas flow adjusting valve, 83-sheath gas flow meter, 84-sheath gas filter, 91-air flow meter, 92-air filter.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
A submicron monodisperse aerosol generating device is shown in the figure and comprises a liquid inlet structure, an aerosol generating structure, a sheath gas protecting structure, an image collecting structure, an aerosol drying structure and an aerosol static neutralizing structure, wherein a sample solution enters the aerosol generating structure from the liquid inlet structure; the aerosol generating structure is used for forming a Taylor cone at the output end of the liquid inlet structure, the sheath gas protection structure is used for carrying aerosol to the aerosol drying structure, the image acquisition structure is used for observing whether the Taylor cone is formed, the aerosol drying structure is used for drying moisture in the aerosol, and the aerosol static neutralizing structure is used for neutralizing charged charges in the aerosol.
In the embodiment of the present invention, the liquid inlet structure includes a capillary liquid inlet needle 11, a capillary liquid inlet needle adjusting knob 12 and a liquid inlet fixing seat 13, the capillary liquid inlet needle 11 is fixed on the capillary liquid inlet needle adjusting knob 12, a liquid storage cavity 16 is provided in the capillary liquid inlet needle adjusting knob 12, and a liquid inlet end of the capillary liquid inlet needle 11 is communicated with the liquid storage cavity 16, a through hole 18 is horizontally provided on the liquid inlet fixing seat 13, the capillary liquid inlet needle adjusting knob 12 is disposed at a first end 181 of the through hole 18 through a thread, that is, it is shown to be disposed at the right side of the liquid inlet fixing seat 13 in the drawing, and a liquid outlet end of the capillary liquid inlet needle 11 passes through a second end 182 of the through hole 18 and extends to the outside of the liquid inlet fixing seat 13, that is, it is shown to extend to the outside of the left side of the liquid inlet fixing seat 13 in the drawing.
The side wall of the liquid inlet fixing seat 13 is provided with a liquid inlet first 14 and a waste liquid port 17, the side wall of the capillary liquid inlet needle adjusting knob 12 is provided with a liquid inlet second 15, the liquid inlet second 15 is respectively communicated with the liquid inlet first 14 and the liquid storage cavity 16, and the waste liquid port 17 is communicated with the liquid inlet first 14 and is used for discharging excessive sample solution.
The sample solution enters the second liquid inlet 15 from the first liquid inlet 14, then enters the liquid storage cavity 16, and finally enters the capillary liquid inlet needle 11 from the liquid inlet end of the capillary liquid inlet needle 11. When the solution in the reservoir chamber 16 is full, the excess solution is discharged from the waste liquid port 17.
In the embodiment of the present invention, the capillary liquid inlet needle 11 is a stainless steel capillary metal tube, and the specification thereof is specifically: inner diameter 1/16 inches, inner diameter 0.5 mm.
The aerosol generating structure comprises an aerosol generating chamber 2 and a high-voltage power supply module, wherein one end of the aerosol generating chamber 2 is communicated with the second end 182 of the through hole 18 on the liquid inlet fixing seat 13, namely, the liquid outlet end of the capillary liquid inlet needle 11 penetrates through the second end 182 of the through hole 18 and extends into the aerosol generating chamber 2.
Because the liquid inlet end of the capillary liquid inlet needle 11 is fixed on the capillary liquid inlet needle adjusting knob 12, the distance from the liquid outlet end of the capillary liquid inlet needle 11 to the aerosol generating chamber 2 can be changed by rotating the capillary liquid inlet needle adjusting knob 12. Generally speaking, the acting force of the electric field applied to the sample solution in the liquid outlet end of the capillary liquid inlet needle 11 can be adjusted by fine-tuning the distance from the liquid outlet end of the capillary liquid inlet needle 11 to the aerosol generation chamber 2, so as to adjust the particle size of the aerosol.
The high-voltage power supply module comprises a polar plate 3 and a power supply for supplying power to the polar plate 3, wherein the polar plate 3 is arranged at the other end of the aerosol generation chamber 2, namely the polar plate 3 is arranged at the other side, opposite to the liquid outlet end of the capillary liquid inlet needle 11, in the aerosol generation chamber 2, the power supply supplies power to the polar plate 3 to generate an electric field at the polar plate 3, in the embodiment of the utility model, the power supply supplies-2.5-7 KV high-voltage electricity, the polar plate 3 forms a uniform electric field under the action of the power supply, and a sample solution in the liquid outlet end of the capillary liquid inlet needle 11 is drawn out under the action of the electric field to form a Taylor cone and continuously disperse into submicron aerosol with uniform particle size.
The voltage provided by the power supply can affect the particle size and the dispersity of the aerosol, generally speaking, the particle size and the dispersity of the aerosol can be more uniform due to the proper electric field, and therefore the power supply needs to be correspondingly adjusted according to different sample solutions.
In another embodiment of the utility model, the plate 3 may also be replaced by a conductive needle.
In the embodiment of the present invention, the sheath gas protection structure includes a sheath gas inlet 41 and a sheath gas channel structure, the sheath gas inlet 41 is connected to the sheath gas channel structure inlet, the sheath gas channel structure outlet is communicated with the aerosol generation chamber 2, the sheath gas channel structure is disposed in the direction of the capillary liquid inlet needle 11, the sheath gas enters the sheath gas channel structure from the sheath gas inlet 41 and forms an air column to uniformly wrap the capillary liquid inlet needle 11, as shown in fig. 6, the direction of the arrow in the figure is the moving direction of the sheath gas.
In fact, the structure of the sheath air channel is the same as the left part of the through hole 18 on the liquid inlet fixing seat 13, which will be described in detail by way of example.
The sheath channel structure includes at least one sheath channel, and in an embodiment of the present invention, the sheath channel structure includes three sheath channels: a first sheath air passage 421, a second sheath air passage 422 and a third sheath air passage 423 are described as an example, wherein one end of the first sheath air passage 421 is communicated with the sheath air inlet 41, the first sheath air passage 421, the second sheath air passage 422 and the third sheath air passage 423 are communicated in sequence, the longitudinal sections of the first sheath air passage, the second sheath air passage 422 and the third sheath air passage 423 are sequentially reduced, and the third sheath air passage 423 is communicated with the aerosol generating chamber 2.
In addition, in the embodiment of the present invention, the first sheath air channel 421, the second sheath air channel 422, and the third sheath air channel 423 are all cylindrical, that is, the cross sections of the three sheath air channels are circular, and since the capillary liquid inlet needle 11 extends into the aerosol generation chamber 2 through the through hole 18, that is, the capillary liquid inlet needle 11 extends into the aerosol generation chamber 2 through the sheath air channel structure, when the capillary liquid inlet needle 11 passes through the sheath air channel structure, the cross sections of the three sheath air channels are circular.
In another embodiment of the present invention, the sheath gas channel may also be in the shape of a circular truncated cone.
In an embodiment of the present invention, the sheath gas includes a high-temperature dry gas or carbon dioxide, or the like.
The aerosol drying structure comprises at least one aerosol through hole 51 and a drying chamber 52, an aerosol outlet nozzle 64 is arranged on the side wall of the drying chamber 52, and the submicron aerosol carried by the air column enters the drying chamber 52 through the aerosol through hole 51 for drying.
In the embodiment of the present invention, two ends of the aerosol through hole 51 are respectively connected to the aerosol generating chamber 2 and the drying chamber 52, and the aerosol generated in the aerosol generating chamber 2 can enter the drying chamber 52 for drying through the aerosol through hole 51 under the carrying of the sheath gas.
In order to enable the sheath gas to be fully fused with the aerosol in the drying chamber 52, in the embodiment of the present invention, three aerosol through holes 51 are provided, so that the sheath gas carrying the aerosol can be uniformly dispersed after passing through the aerosol through holes 51 and finally hit the inner wall of the drying chamber 52, as shown in fig. 7, the direction of an arrow in the figure is the moving direction of the sheath gas carrying the aerosol, at this time, the aerosol is fully mixed with carbon dioxide or high-temperature drying gas, and the high-temperature drying gas or carbon dioxide evaporates moisture in the aerosol, so that the liquid droplets are dried and crystallized.
During the drying process, the droplets and the particles produced by the evaporated droplets are accompanied by a large amount of charge, and therefore an aerosol electrostatic neutralization structure is provided for electrostatically neutralizing the dried aerosol.
The aerosol static neutralizing structure comprises an electrode needle 61, an air inlet nozzle 62 and an air inlet channel 63, wherein the air inlet channel 63 is connected with the air inlet nozzle 62 and the drying chamber 52, a needle head of the electrode needle 61 extends into the air inlet channel 63, the electrode needle 61 is connected with a static eliminating device, and after the static eliminating device is electrified, the static eliminating device generates a large amount of ion charges through corona discharge of the electrode needle 61 to neutralize the charges carried by the aerosol in the drying chamber 52.
In an embodiment of the present invention, the static eliminating apparatus is a non-radioactive static eliminator.
Example 2
A submicron monodisperse aerosol generating system, as shown in FIG. 8, comprises the submicron monodisperse aerosol generating device of example 1, and further comprises a sheath gas supply structure, an air supply structure, and an injection pump 717.
In the embodiment of the present invention, the sheath gas supply structure includes a sheath gas tank 81, a sheath gas flow rate adjusting valve 82, a sheath gas flow meter 83, and a sheath gas filter 84, the sheath gas tank 81, the sheath gas flow rate adjusting valve 82, the sheath gas flow meter 83, and the sheath gas filter 84 are connected in sequence, and the sheath gas filter 84 is further connected to the sheath gas inlet.
The sheath gas in the sheath gas tank 81 enters the sheath gas flow regulating valve 82 from the sheath gas tank 81, then enters the sheath gas flow meter 83, then passes through the sheath gas filter 84, finally enters the sheath gas inlet 41, and enters the submicron monodisperse aerosol generating device from the sheath gas inlet 41.
The air supply structure comprises an air flow meter 91 and an air filter 92, wherein the air flow meter 91 is respectively connected with an air source and the air filter 92, and the air filter 92 is also connected with the air inlet nozzle 62.
Clean air enters the air filter 92 from the air supply and then enters the air inlet nozzle 62 through the air inlet nozzle 62 into the sub-micron monodisperse aerosol generating device.
The liquid injection pump 71 is respectively connected with the sample solution bottle and the liquid inlet I14, and the sample solution enters the liquid injection port I14 through the liquid injection pump 71, then enters the liquid injection port II 15, then enters the liquid storage cavity 16, and finally enters the capillary liquid inlet needle 11 from the liquid inlet end of the capillary liquid inlet needle.
A waste bottle 72 is also connected to the waste port for collecting waste.
In addition, in the embodiment of the utility model, the aerosol photometer is further included and is used for detecting the concentration of the aerosol output by the aerosol outlet nozzle.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.
Claims (9)
1. A submicron monodisperse aerosol generating device, characterized in that: comprises a liquid inlet structure, an aerosol generating structure, a sheath gas protecting structure, an aerosol drying structure and an aerosol static neutralizing structure,
the liquid inlet structure comprises a capillary liquid inlet needle, and a sample solution enters the capillary liquid inlet needle from the liquid inlet end of the capillary liquid inlet needle;
the aerosol generating structure comprises an aerosol generating chamber and a high-voltage power supply module, the liquid inlet end and the liquid outlet end of the capillary tube extend into the aerosol generating chamber, the high-voltage power supply module is used for generating an electric field in the aerosol generating chamber, and a sample solution in the liquid inlet end and the liquid outlet end of the capillary tube is drawn out under the action of the electric field to form a Taylor cone and continuously disperse submicron aerosol with uniform particle size;
the sheath gas protection structure comprises a sheath gas inlet and a sheath gas channel structure, the sheath gas inlet is connected with the inlet of the sheath gas channel structure, the outlet of the sheath gas channel structure is communicated with the aerosol generation chamber, the sheath gas channel structure is arranged in the direction of the capillary liquid inlet needle, and the sheath gas enters the sheath gas channel structure from the sheath gas inlet and forms a gas column to uniformly wrap the capillary liquid inlet needle;
the aerosol drying structure comprises at least one aerosol through hole and a drying chamber, an aerosol air outlet nozzle is arranged on the side wall of the drying chamber, and the submicron aerosol carried by the air column enters the drying chamber through the aerosol through hole to be dried;
the aerosol electrostatic neutralization structure is used for carrying out electrostatic neutralization on the dried aerosol.
2. The sub-micron monodisperse aerosol-generating device of claim 1, wherein: the feed liquor structure still includes capillary feed liquor needle adjust knob and feed liquor fixing base, capillary feed liquor needle is fixed on the capillary feed liquor needle adjust knob, be provided with the stock solution chamber in the capillary feed liquor needle adjust knob, capillary feed liquor needle feed liquor end with the stock solution chamber communicates with each other, be provided with inlet one on the feed liquor fixing base, be provided with inlet two on the capillary feed liquor needle adjust knob lateral wall, inlet two respectively with inlet one with the stock solution chamber communicates with each other.
3. The sub-micron monodisperse aerosol-generating device of claim 2, wherein: the high voltage power supply module includes the polar plate and does the polar plate provides the power supply of power, the polar plate sets up aerosol takes place indoor with capillary feed liquor needle goes out the relative one side of liquid end, power supply does the polar plate power supply with polar plate department produces the electric field.
4. The sub-micron monodisperse aerosol-generating device of claim 3, wherein: still be provided with the waste liquid mouth on the lateral wall under the feed liquor fixing base, the waste liquid mouth with the stock solution chamber communicates with each other for discharge excessive sample solution.
5. The sub-micron monodisperse aerosol-generating device of claim 4, wherein: the sheath gas includes a high temperature dry gas or carbon dioxide.
6. The sub-micron monodisperse aerosol-generating device of claim 5, wherein: the aerosol static neutralization structure comprises an electrode needle, an air inlet nozzle and an air inlet channel, wherein the electrode needle is connected with a static elimination device, the air inlet channel is connected with the air inlet nozzle and the drying chamber, a needle head of the electrode needle extends into the air inlet channel, and the electrode needle is electrified to ionize air so as to neutralize the charge of the aerosol in the drying chamber.
7. A submicron monodisperse aerosol-generating system comprising the submicron monodisperse aerosol-generating device of any of claims 1-6, wherein: further comprising: a sheath gas supply structure and an air supply structure,
the sheath gas supply structure comprises a sheath gas tank, a sheath gas flow regulating valve, a sheath gas flowmeter and a sheath gas filter, the sheath gas tank, the sheath gas flow regulating valve, the sheath gas flowmeter and the sheath gas filter are sequentially connected, and the sheath gas filter is also connected with the sheath gas inlet;
the air supply structure comprises an air flow meter and an air filter, the air flow meter is respectively connected with an air source and the air filter, and the air filter is further connected with the air inlet nozzle.
8. The submicron monodisperse aerosol generating system of claim 7, wherein: the aerosol photometer is used for detecting the concentration of the aerosol output by the aerosol air outlet nozzle.
9. The submicron monodisperse aerosol generating system of claim 7, wherein: the capillary liquid inlet needle is connected with the sample solution bottle through the liquid injection pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121868855.8U CN216572994U (en) | 2021-08-11 | 2021-08-11 | Submicron monodisperse aerosol generating device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121868855.8U CN216572994U (en) | 2021-08-11 | 2021-08-11 | Submicron monodisperse aerosol generating device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216572994U true CN216572994U (en) | 2022-05-24 |
Family
ID=81609350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121868855.8U Active CN216572994U (en) | 2021-08-11 | 2021-08-11 | Submicron monodisperse aerosol generating device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216572994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578213A (en) * | 2021-08-11 | 2021-11-02 | 青岛众瑞智能仪器股份有限公司 | Submicron monodisperse aerosol generating device and system |
-
2021
- 2021-08-11 CN CN202121868855.8U patent/CN216572994U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578213A (en) * | 2021-08-11 | 2021-11-02 | 青岛众瑞智能仪器股份有限公司 | Submicron monodisperse aerosol generating device and system |
| CN113578213B (en) * | 2021-08-11 | 2024-04-19 | 青岛众瑞智能仪器股份有限公司 | Submicron-order monodisperse aerosol generating device and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Borra | Review on water electro-sprays and applications of charged drops with focus on the corona-assisted cone-jet mode for High Efficiency Air Filtration by wet electro-scrubbing of aerosols | |
| US7882799B2 (en) | Method and apparatus for generating charged particles for deposition on a surface | |
| US4255777A (en) | Electrostatic atomizing device | |
| Tang et al. | On the structure of an electrostatic spray of monodisperse droplets | |
| US5873523A (en) | Electrospray employing corona-assisted cone-jet mode | |
| De La Mora | The effect of charge emission from electrified liquid cones | |
| CN106290602B (en) | The method and system of detection for Nonvolatile solute | |
| CN106449349B (en) | Compound ion source based on discharge of plasma in low temperature | |
| CN216572994U (en) | Submicron monodisperse aerosol generating device and system | |
| Marchewicz et al. | Induction charging of water spray produced by pressure atomizer | |
| CN103612207A (en) | Conveying capacity controllable nano particle jet flow minimal quantity lubrication grinding device in enhanced magnetoelectricity field | |
| CN113578213B (en) | Submicron-order monodisperse aerosol generating device and system | |
| Clifford et al. | Particle size measurements in the submicron range by the differential electromobility technique: comparison of aerosols from thermospray, ultrasonic, pneumatic and frit-type nebulizers | |
| CN209591975U (en) | One kind being used for mass spectrometric ion source device | |
| Sato | Formation of uniformly sized liquid droplets using spinning disk under applied electrostatic field | |
| CN109174456B (en) | Device and method for atomizing wet electrostatic dust collection | |
| CN109979797A (en) | One kind being used for mass spectrometric ion source device and its application method | |
| Wang et al. | Atomization characteristics of electrohydrodynamic limestone-water slurry spray | |
| Jayasinghe et al. | Relic and droplet sizes produced by electrostatic atomisation of ceramic suspensions | |
| CN203579423U (en) | Minimal quantity lubrication grinding device for controllably transporting nano-particle jet flow under magnetism enhanced electric field | |
| Meesters et al. | A monodisperse-aerosol-generator, using the Taylor cone, for the production of 1 μm droplets | |
| US8671874B2 (en) | Process and apparatus for localized coating of assembled cascade impactor particle collection surfaces | |
| Pervukhin et al. | A Collison nebulizer as an ion source for mass spectrometry analysis | |
| Yuxin | Droplet charging in electro-atomization study | |
| Im* et al. | Spray characteristics on the electrostatic rotating bell applicator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |