CN218422502U - Aerosol diluting device and measuring device based on pressure regulation - Google Patents
Aerosol diluting device and measuring device based on pressure regulation Download PDFInfo
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- CN218422502U CN218422502U CN202221749471.9U CN202221749471U CN218422502U CN 218422502 U CN218422502 U CN 218422502U CN 202221749471 U CN202221749471 U CN 202221749471U CN 218422502 U CN218422502 U CN 218422502U
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Abstract
The utility model provides an aerosol diluting device and a measuring device based on pressure regulation, which comprises an aerosol buffer container, a first air filter, a first flow regulating valve, a switch valve, a second flow regulating valve, a second air filter and a pipeline; the top end of the aerosol buffer container is provided with an aerosol injection port, the bottom end of the aerosol buffer container is provided with an atmosphere connecting port, the atmosphere connecting port is communicated with the atmosphere through a first flow regulating valve and a first air filter, the upper part of the aerosol buffer container is provided with an aerosol outlet, and the aerosol outlet is communicated with the inlet end of a switch valve through a pipeline; the outlet end of the switch valve is connected with an aerosol main outlet pipeline, a branch communicated with the atmosphere is formed in the aerosol main outlet pipeline, and the second flow regulating valve and the second air filter are installed on the branch. The device can adjust the aerosol dilution proportion in a flexible way, promotes the aerosol dilution efficiency to a certain extent.
Description
Technical Field
The utility model relates to a preparation field of aerosol, specific theory has related to an aerosol diluting device based on pressure adjustment to and aerosol measuring device.
Background
The particle size spectrometer usually needs to dilute in advance in the process of measuring aerosol with higher concentration, however, as aerosol, especially aerosol with more liquid phase components, particle size distribution is easy to change during dilution, and excessively long dilution process greatly affects the measurement result of the particle size distribution of the aerosol, so that the particle size distribution state of the original aerosol cannot be mastered.
Meanwhile, the dilution ratio of the aerosol is often difficult to control.
In order to solve the above problems, people are always seeking an ideal technical solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of prior art to a nimble aerosol dilution ratio of adjusting is provided, promotes the aerosol diluting device based on pressure adjustment of dilution efficiency.
The basic concept of the scheme is as follows: through the design of two pipelines, one directly communicates the atmosphere, and another communicates the atmosphere when inserting aerosol buffer memory container, through the adjustment of two proportional valves, adjusts the proportion in real time, and then promotes dilution efficiency, and the regulation of proportion is more nimble.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: an aerosol diluting device based on pressure regulation comprises an aerosol buffer container, a first air filter, a first flow regulating valve, a switch valve, a second flow regulating valve, a second air filter and a pipeline;
the top end of the aerosol buffer container is provided with an aerosol injection port, the bottom end of the aerosol buffer container is provided with an atmosphere connecting port, the atmosphere connecting port is communicated with the atmosphere through a first flow regulating valve and a first air filter, the upper part of the aerosol buffer container is provided with an aerosol outlet, and the aerosol outlet is communicated with the inlet end of a switch valve through a pipeline;
the outlet end of the switch valve is connected with an aerosol main outlet pipeline, a branch communicated with the atmosphere is formed in the aerosol main outlet pipeline, and the second flow regulating valve and the second air filter are installed on the branch.
Basically, the branch is connected to the aerosol main outlet pipeline through a three-way valve.
Basically, the aerosol injection port and the aerosol outlet are respectively arranged at two sides of the top end of the aerosol buffer container.
Basically, the volume of the buffer cavity in the aerosol buffer container is adjustable.
Basically, the first flow regulating valve and the second flow regulating valve are both solenoid valves, and the working states of the first flow regulating valve and the second flow regulating valve are controlled by the same controller.
Basically, the switch valve is a one-way electromagnetic valve, and the switch valve is controlled by the controller to be opened and closed.
An aerosol measuring device comprises the aerosol diluting device based on pressure regulation and a particle size spectrometer, wherein an inlet of the particle size spectrometer is connected to the tail end of the aerosol main outlet pipeline.
Basically, the starting switch of the particle size spectrometer is started through linkage of the controller and the switch valve.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model has the advantages of it is following:
1. the aerosol to be diluted is filled in the aerosol buffer container, namely the size of the aerosol buffer container is consistent with the volume of the original aerosol, the concentration of the original aerosol is kept, then the original aerosol is connected into the first branch pipe, the other branch pipe is communicated with the atmosphere, and the dilution of the aerosol concentration is flexibly realized through the proportion allocation of the flow regulating valves on the two branch pipes;
2. the bottom end of the aerosol buffer container is also communicated with the atmosphere, and the effect is to keep the stability of the suction pressure in the process of sucking the aerosol;
3. because the aerosol is temporarily stored in the buffer container instead of being prepared in real time, and the dilution process is carried out in real time instead of being diluted in one container, the integral dilution efficiency is improved, and the dilution time is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an application state of the aerosol dilution device based on pressure regulation according to the present invention.
In the figure: 1. an aerosol buffer container; 2. a first air filter; 3. a first flow regulating valve; 4. an on-off valve; 5. a second flow regulating valve; 6. a second air filter; 7. a pipeline; 8. a particle size spectrometer; 9. an aerosol injection port; 10. an aerosol outlet; 11. a main aerosol outlet line; 12. a first branch; 13. a second branch.
Detailed Description
The technical solution of the present invention is further described in detail through the following embodiments.
As shown in fig. 1, an aerosol dilution device based on pressure regulation comprises an aerosol buffer container 1, a first air filter 2, a first flow regulating valve 3, a switch valve 4, a second flow regulating valve 5, a second air filter 6 and a pipeline 7.
In this embodiment, an application scenario of the aerosol dilution apparatus based on pressure adjustment, that is, a measurement operation after aerosol dilution is described, and therefore, it is necessary to combine the particle size spectrometer 8.
The particle size spectrometer 8 has the capability of negative pressure suction and is used as a power source for aerosol detection.
The particle size spectrometer 8 is connected on the total outlet pipeline 11 of aerosol, and the total outlet pipeline of aerosol passes through three-way valve connection two branches.
The first branch 12 is provided with a second flow regulating valve 5 and a second air filter 6 and then is communicated with the atmosphere.
And the second branch 13 is provided with a switch valve 4, an aerosol buffer container 1, a first air filter 2 and a first flow regulating valve 3 and then is communicated with the atmosphere.
The aerosol inlet 9 of the aerosol buffer container 1 is used for connecting the aerosol generating unit.
The aerosol injection port 9 with the aerosol export 10 sets up respectively in the top both sides of aerosol buffer container, and the atmosphere connection mouth of aerosol buffer container 1 is located the bottom, and the purpose of design like this is that, aerosol is in the in-process of deriving, aerifys from the bottom by atmosphere and pushes out aerosol from the top, can keep the concentration stability that aerosol derives.
In other embodiments, the volume of the buffer chamber in the aerosol buffer container is adjustable, so that the aerosol amount generated by the aerosol generating device at a time may be different, for example, when the aerosol buffer container is applied to aerosol measurement of a single mouth of cigarette, the volume of the aerosol buffer container needs to be adjusted to be equal to the volume of the single mouth of cigarette, and the aerosol buffer container can be designed to be a flexible structure or a telescopic structure in a specific implementation manner.
For convenience of control, the first flow regulating valve 3 and the second flow regulating valve 5 are both electromagnetic valves, the first flow regulating valve 3 and the second flow regulating valve 5 are controlled by the same controller to be in working states, the switch valve 4 is a one-way electromagnetic valve, and the switch valve 4 is controlled by the controller to be opened and closed.
The working principle is as follows:
the on-off valve 4 is first closed and the particle size spectrometer 8 measures the filtered atmospheric aerosol from the first branch 12.
Then, the opening of the first flow regulating valve 3 is regulated to the maximum, the aerosol to be measured is pushed into the aerosol buffer container 1 from the aerosol injection port 9, and the size of the aerosol buffer container 1 is consistent with the size of the original aerosol.
And then the opening degrees of the first flow regulating valve 3 and the second flow regulating valve 5 are regulated, the switch valve 4 is opened, and the aerosol particle size distribution is measured under the action of the negative pressure suction force of the particle size spectrometer 8.
Because the flow rates flowing into the first flow regulating valve 3 and the second flow regulating valve 5 are controlled by the opening degrees of the two flow regulating valves, the mixing ratio of the aerosol flowing into the particle size spectrometer 8 and the clean air can be adjusted by adjusting the first flow regulating valve 3 and the second flow regulating valve 5, and then the adjustment of different dilution ratios of the aerosol is realized.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (8)
1. An aerosol diluting device based on pressure regulation, its characterized in that: the aerosol buffer device comprises an aerosol buffer container, a first air filter, a first flow regulating valve, a switch valve, a second flow regulating valve, a second air filter and a pipeline;
the top end of the aerosol buffer container is provided with an aerosol injection port, the bottom end of the aerosol buffer container is provided with an atmosphere connecting port, the atmosphere connecting port is communicated with the atmosphere through a first flow regulating valve and a first air filter, the upper part of the aerosol buffer container is provided with an aerosol outlet, and the aerosol outlet is communicated with the inlet end of a switch valve through a pipeline;
the outlet end of the switch valve is connected with an aerosol main outlet pipeline, a branch communicated with the atmosphere is formed in the aerosol main outlet pipeline, and the second flow regulating valve and the second air filter are installed on the branch.
2. The pressure regulation-based aerosol dilution device of claim 1, wherein: the branch is connected to the aerosol main outlet pipeline through a three-way valve.
3. A pressure regulation-based aerosol dilution unit according to claim 1 or 2, wherein: the aerosol injection port and the aerosol outlet are respectively arranged on two sides of the top end of the aerosol buffer container.
4. A pressure regulation-based aerosol dilution unit as defined in claim 3, wherein: the volume of a buffer cavity in the aerosol buffer container is adjustable.
5. A pressure regulation-based aerosol dilution unit as defined in claim 4, wherein: the first flow regulating valve and the second flow regulating valve are both electromagnetic valves, and the working states of the first flow regulating valve and the second flow regulating valve are controlled by the same controller.
6. A pressure regulation-based aerosol dilution unit as defined in claim 5, wherein: the switch valve is a one-way electromagnetic valve, and the switch valve is controlled by the controller to be opened and closed.
7. An aerosol measurement device, comprising: comprising the pressure regulation based aerosol dilution device according to any one of claims 1 to 6 and a particle size spectrometer, the inlet of which is connected to the tail end of the main aerosol outlet line.
8. An aerosol measuring device according to claim 7, wherein: and a starting switch of the particle size spectrometer is started in a linkage manner with the switch valve through a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221749471.9U CN218422502U (en) | 2022-07-08 | 2022-07-08 | Aerosol diluting device and measuring device based on pressure regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221749471.9U CN218422502U (en) | 2022-07-08 | 2022-07-08 | Aerosol diluting device and measuring device based on pressure regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218422502U true CN218422502U (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221749471.9U Active CN218422502U (en) | 2022-07-08 | 2022-07-08 | Aerosol diluting device and measuring device based on pressure regulation |
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| Country | Link |
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| CN (1) | CN218422502U (en) |
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2022
- 2022-07-08 CN CN202221749471.9U patent/CN218422502U/en active Active
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