CN217542540U - Air supplementing system of aerosol chamber and aerosol sampling system - Google Patents
Air supplementing system of aerosol chamber and aerosol sampling system Download PDFInfo
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- CN217542540U CN217542540U CN202220596007.4U CN202220596007U CN217542540U CN 217542540 U CN217542540 U CN 217542540U CN 202220596007 U CN202220596007 U CN 202220596007U CN 217542540 U CN217542540 U CN 217542540U
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Abstract
The utility model discloses an aerosol chamber tonifying qi system and aerosol sampling system, including atomizer, aerosol chamber, pressure monitoring device and tonifying qi branch road, the aerosol chamber is connected with the gas outlet of atomizer for the aerosol granule of splendid attire atomizer output, sampling gas circuit is connected to the aerosol chamber, and pressure monitoring device is used for monitoring the indoor pressure of aerosol, and tonifying qi branch road and aerosol chamber intercommunication are used for carrying out the tonifying qi to the aerosol chamber according to the pressure data that pressure monitoring device monitored, with the indoor pressure of regulation aerosol. The system can effectively and dynamically adjust the pressure in the aerosol chamber, has strong real-time performance and good stability, effectively avoids the influence of the pressure on an experimental result, and improves the accuracy of experimental data.
Description
Technical Field
The utility model relates to an aerosol technical field especially relates to an aerosol room tonifying qi system and aerosol sampling system.
Background
In some fields such as biology, medicine and detection, it is often necessary to quantitatively generate microbial aerosol with a certain particle size for research or detection. For example, most masks require testing for bacterial filtration efficiency, which requires impacting the mask with a quantitative standard particle size of bacterial aerosol to determine the mask's filtration efficiency for bacterial aerosol.
In a microbial aerosol sampling system taking an airflow type sprayer as a core, an air supply unit provides high-speed clean air flow into the sprayer, a liquid supply unit provides microbial suspension into the sprayer, the sprayer disperses the microbial suspension into microbial aerosol particles by means of the high-speed clean air flow, and the microbial aerosol particles flow into an aerosol chamber to be dispersed into uniform microbial aerosol. When the microbial aerosol in the aerosol chamber is sampled, the existing sampling system does not control and adjust the pressure in the aerosol chamber, does not consider the influence of pressure change on an experimental result, and reduces the accuracy of experimental data.
The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
To the problem pointed out in the background art, the utility model provides an aerosol room tonifying qi system and aerosol sampling system, pressure in can effectual dynamic adjustment aerosol room, the real-time strong, stability is good, has effectively avoided the influence of pressure to the experimental result, has improved experimental data's accuracy.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:
the utility model provides an air supply system for aerosol chamber, include:
the aerosol sampling device comprises an aerosol chamber, a sampling gas circuit and a control circuit, wherein the aerosol chamber is used for uniformly mixing aerosol, the aerosol chamber is connected with a sprayer and the sampling gas circuit, the aerosol generated by the sprayer flows into the aerosol chamber, and the sampling gas circuit samples the aerosol in the aerosol chamber;
a pressure monitoring device for monitoring the pressure within the aerosol chamber;
and the air supplement branch is communicated with the aerosol chamber and used for supplementing air to the aerosol chamber according to the pressure data monitored by the pressure monitoring device so as to adjust the pressure in the aerosol chamber.
In some embodiments, the air supply branch has a plurality of air supply branches, and an air supply flow of at least one of the air supply branches is adjustable.
In some embodiments of the present application, the air supply branch comprises a first air supply branch, and a closed high efficiency filter and a control valve are disposed on the first air supply branch;
the air inlet of the closed high-efficiency filter is connected with the control valve, the air outlet of the closed high-efficiency filter is connected with the aerosol chamber, and outside atmosphere flows into the aerosol chamber through the control valve and the closed high-efficiency filter.
In some embodiments of the present application, the air supply branch includes a second air supply branch, an open high efficiency filter is disposed on the second air supply branch, and the external atmosphere flows into the aerosol chamber through the open high efficiency filter.
In some embodiments of the present application, a first interface is disposed at the top of the aerosol chamber and is used for connecting with an air outlet of the atomizer;
and a second interface is arranged at the bottom of the aerosol chamber and is used for connecting the sampling gas circuit.
In some embodiments of the present application, a third interface is disposed at the top of the aerosol chamber and is used for connecting the air supply branch.
In some embodiments of the present application, a fourth interface is disposed at the bottom of the aerosol chamber and is used for connecting a balance gas path.
In some embodiments, the pressure monitoring device is coupled to a side wall of the aerosol chamber at a central or medial upper portion of the side wall.
The utility model also provides an aerosol sampling system, including atomizer, sampling gas circuit and as above aerosol chamber tonifying qi system, the aerosol that the atomizer produced flows in the aerosol chamber, the sampling gas circuit is right aerosol in the aerosol chamber is sampled.
Compared with the prior art, the utility model discloses an advantage is with positive effect:
the utility model discloses an aerosol sampling system controls the regulation of tonifying qi branch road to the indoor tonifying qi flow of aerial fog according to the real-time supervision data of pressure monitoring device to aerial fog room pressure, realizes the dynamic adjustment of aerial fog room internal pressure, makes aerial fog room pressure be in reasonable within range and remain stable all the time to eliminate the change of aerial fog room internal pressure and cause the influence to the experimental result greatly.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural diagram of an aerosol sampling system according to an embodiment.
Reference numerals:
1-sampling a gas circuit;
2-balancing the gas circuit;
100-sprayer;
200-aerosol chamber, 210-first interface, 220-second interface, 230-third interface, 240-fourth interface;
300-a pressure monitoring device;
410-a first air supply branch, 411-a closed high-efficiency filter, 412-a control valve;
420-second air supply branch, 421-open high efficiency filter;
500-an air supply unit;
600-a liquid supply unit.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in the various examples for purposes of simplicity and clarity and do not in itself dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The embodiment discloses an air supply system for an aerosol chamber, which mainly comprises an aerosol chamber 200, a pressure monitoring device 300, an air supply branch and the like, with reference to fig. 1.
The aerosol chamber 200 is used to mix the aerosol, which is provided by the nebulizer 100.
The sprayer 100 is exemplified by an air flow sprayer, the air supply unit 500 supplies high-speed clean air flow into the sprayer 100, the liquid supply unit 600 supplies suspension (such as microorganism suspension) into the air flow sprayer 100, and the sprayer 100 disperses the suspension into aerosol particles by means of the high-speed clean air flow.
The air outlet of the atomizer 100 is connected to the aerosol chamber 200, and the aerosol particles output from the atomizer 100 flow into the aerosol chamber 200 and are diffused to form a uniform aerosol.
The aerosol chamber 200 is connected with a sampling gas circuit 1, and the aerosol in the aerosol chamber 200 is sampled through the sampling gas circuit 1.
The pressure monitoring device 300 is configured to monitor the pressure within the aerosol chamber 200 in real time.
The air supply branch is communicated with the aerosol chamber 200 and is used for supplying air to the aerosol chamber 200 according to the pressure data monitored by the pressure monitoring device 300 so as to adjust the pressure in the aerosol chamber 200.
The dynamic regulation of the pressure in the aerosol chamber 200 is realized by monitoring the pressure in the aerosol chamber 200 in real time by the pressure monitoring device 300 and controlling and regulating the air supply flow in the aerosol chamber 200 by the air supply branch, so that the pressure in the aerosol chamber 200 is always in a reasonable range and is kept stable, and the influence of large pressure change in the aerosol chamber 200 on the experimental result is eliminated.
In some embodiments, there are multiple (e.g., two) supply branches to meet the supply flow requirements of the aerosol chamber 200.
The air supply flow of at least one air supply branch can be adjusted, and the pressure in the aerosol chamber 200 can be adjusted by adjusting the air supply flow.
In some embodiments of the present application, the gas supply branch includes a first gas supply branch 410, a closed high efficiency filter 411 and a control valve 412 are disposed on the first gas supply branch 410, and the control valve 412 may be an electric ball valve.
The inlet of the closed high efficiency filter 411 is connected to the control valve 412, the outlet of the closed high efficiency filter 411 is connected to the aerosol chamber 200, and the outside air flows into the aerosol chamber through the control valve 412 and the closed high efficiency filter 411.
The pressure monitoring device 300 transmits the monitored pressure data to the control center, the control center controls the opening and closing size of the control valve 412 according to the pressure data, and controls the air supply flow rate of the first air supply branch 410 flowing into the aerosol chamber 200 through the opening and closing size of the control valve 412, so that the pressure in the aerosol chamber 200 is controlled within a reasonable range and is kept stable.
In some embodiments, the air supply branch includes a second air supply branch 420, an open high efficiency filter 421 is disposed on the second air supply branch 420, and the outside air flows into the aerosol chamber 200 through the open high efficiency filter 421.
Through set up high efficiency filter on tonifying qi branch road, carry out filtration sterilization to the new gas of mending to avoid dust bacterium to influence the experimental result.
In some embodiments, the top of the aerosol chamber 200 is provided with a first port 210 for connecting to an air outlet of the nebulizer 100. The bottom of the aerosol chamber 200 is provided with a second interface 220 for connecting the sampling gas circuit 1.
The aerosol particles flowing out of the nebulizer 100 flow into the aerosol chamber 200 through the upper first interface 210, and fully diffuse and mix with the gas in the aerosol chamber 200 in the process of flowing to the lower second interface 220, so as to improve the uniformity of the aerosol flowing into the sampling gas path 1.
The second interface 220 has a plurality (such as two) and is symmetrically arranged, so that a plurality of sampling gas circuits 1 can be accessed simultaneously according to the detection requirement.
The top of the aerosol chamber 200 is provided with a third port 230 for connecting the air supply branch. The fresh air flowing in from the air supply branch and the aerosol particles flowing out from the atomizer 100 are merged at the top of the aerosol chamber 200, and then flow to the sampling air passage 1 at the bottom in the same direction, so that the contact time of the aerosol particles and the fresh air in the aerosol chamber 200 is prolonged, and the improvement of the uniformity of the aerosol is facilitated.
The third port 230 has a plurality of (for example, two) ports and is symmetrically arranged, so that a plurality of gas supply branches can be simultaneously accessed according to requirements.
The bottom of the aerosol chamber 200 is provided with a fourth interface 240 for connecting the balance gas circuit 2.
Before formal sampling is performed by using the sampling gas circuit 1, the aerosol chamber 200 is firstly connected to the balance gas circuit 2 through the third interface 230, and when the aerosol in the aerosol chamber 200 reaches a stable uniform state, the aerosol is connected to the sampling gas circuit 1 through the second interface 220, so that the sampling accuracy is improved.
The third interface 230 has a plurality of (for example, two) interfaces and is symmetrically arranged, so that a plurality of balance gas circuits 2 can be simultaneously accessed according to the detection requirement.
In some embodiments, the pressure monitoring device 300 is connected to the middle or middle upper portion of the sidewall of the aerosol chamber 200, which helps to improve the accuracy of the pressure monitoring data.
The embodiment also discloses an aerosol sampling system, which comprises a sprayer 100, a sampling gas circuit 1 and the air supply system of the aerosol chamber disclosed by the embodiment, wherein aerosol generated by the sprayer 100 flows into the aerosol chamber 200, and the sampling gas circuit 1 samples the aerosol in the aerosol chamber 200.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. An aerosol chamber air make-up system comprising:
the aerosol sampling device comprises an aerosol chamber, a sampling gas circuit and a control circuit, wherein the aerosol chamber is used for uniformly mixing aerosol, the aerosol chamber is connected with a sprayer and the sampling gas circuit, the aerosol generated by the sprayer flows into the aerosol chamber, and the sampling gas circuit samples the aerosol in the aerosol chamber;
it is characterized by also comprising:
a pressure monitoring device for monitoring the pressure within the aerosol chamber;
and the air supplement branch is communicated with the aerosol chamber and used for supplementing air to the aerosol chamber according to the pressure data monitored by the pressure monitoring device so as to adjust the pressure in the aerosol chamber.
2. The system for supplying air to an aerosol chamber according to claim 1,
the air supply branch is provided with a plurality of air supply branches, and the air supply flow of at least one air supply branch can be adjusted.
3. The air supply system for an aerosol chamber according to claim 2,
the air supply branch comprises a first air supply branch, and a closed efficient filter and a control valve are arranged on the first air supply branch;
the air inlet of the closed high-efficiency filter is connected with the control valve, the air outlet of the closed high-efficiency filter is connected with the aerosol chamber, and outside atmosphere flows into the aerosol chamber through the control valve and the closed high-efficiency filter.
4. The air supply system for an aerosol chamber according to claim 2,
the air supply branch comprises a second air supply branch, an open type efficient filter is arranged on the second air supply branch, and outside air flows into the aerosol chamber through the open type efficient filter.
5. The aerosol chamber air make-up system of any one of claims 1 to 4,
the top of the aerosol chamber is provided with a first interface which is used for connecting an air outlet of the atomizer;
and a second interface is arranged at the bottom of the aerosol chamber and is used for connecting the sampling gas circuit.
6. The air supply system for an aerosol chamber according to claim 5,
and a third interface is arranged at the top of the aerosol chamber and is used for connecting the air supply branch.
7. The system for supplying air to an aerosol chamber according to claim 5,
and a fourth interface is arranged at the bottom of the aerosol chamber and used for connecting a balance gas circuit.
8. The aerosol chamber air make-up system of any one of claims 1 to 4,
the pressure monitoring device is connected to the position near the middle or the middle upper part of the side wall of the aerosol chamber.
9. An aerosol sampling system, characterized in that,
the aerosol chamber air supplement system comprises a sprayer, a sampling air path and the aerosol chamber air supplement system as claimed in any one of claims 1 to 8, wherein aerosol generated by the sprayer flows into the aerosol chamber, and the sampling air path samples the aerosol in the aerosol chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220596007.4U CN217542540U (en) | 2022-03-18 | 2022-03-18 | Air supplementing system of aerosol chamber and aerosol sampling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220596007.4U CN217542540U (en) | 2022-03-18 | 2022-03-18 | Air supplementing system of aerosol chamber and aerosol sampling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217542540U true CN217542540U (en) | 2022-10-04 |
Family
ID=83427228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220596007.4U Active CN217542540U (en) | 2022-03-18 | 2022-03-18 | Air supplementing system of aerosol chamber and aerosol sampling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217542540U (en) |
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- 2022-03-18 CN CN202220596007.4U patent/CN217542540U/en active Active
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