CN215178981U - Microorganism aerosol concentration sampler - Google Patents
Microorganism aerosol concentration sampler Download PDFInfo
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- CN215178981U CN215178981U CN202121194149.XU CN202121194149U CN215178981U CN 215178981 U CN215178981 U CN 215178981U CN 202121194149 U CN202121194149 U CN 202121194149U CN 215178981 U CN215178981 U CN 215178981U
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Abstract
The utility model discloses a microorganism aerosol concentration sample thief, including sample thief machine case, this sample thief machine incasement portion installs concentration pump and sampling pump, its characterized in that: the concentrator is connected to the upper part of the sampler case, the sampler is connected to the side of the sampler case, and the sampler is connected to the drying cylinder; the sampler case is provided with an air inlet, a transition pipe for installing a concentrator is arranged above the sampler case, and a handle is hinged above the sampler case; concentrator below center is connected with the main air route that can match with the transition pipe and connects the mouth, the concentrator top is equipped with the concentrator upper cover, the concentrator upper cover is equipped with the gas appearance entry, the concentrator upper cover is connected with the shield, the inside acceleration nozzle that distributes of annular that is equipped with of concentrator, the nozzle below correspondence is equipped with receiving nozzle with higher speed, the receiving nozzle below is connected with the annular and collects the storehouse, the nozzle with higher speed, the storehouse is collected through screw connection to receiving nozzle and annular, the storehouse threaded connection is collected to the annular has the concentrated gas outlet.
Description
Technical Field
The utility model belongs to the technical field of the sampling, concretely relates to microorganism aerosol concentration sample thief.
Background
The microbial aerosol refers to a colloid system formed by microorganisms and byproducts thereof in the air, and comprises bacteria, fungi, viruses, spores, endotoxin, mycotoxin and the like. Because the microbial aerosol can spread pathogenic microorganisms, which causes the prevalence and outbreak of some diseases, the microbial aerosol needs to be sampled for prevention so as to ensure the normal life of people. The sampling equipment for sampling the microbial aerosol in the prior art has the following problems:
1. because the sampling flow is small and the sampling time is too long or the sampling time is short and the sampling flow is too large, the activity of microbial colonies and the effectiveness of samples are caused, the detection effect is influenced, and the judgment of a monitoring unit on the ecological environment is misled;
2. the flow control precision is low, and the flow is unstable, and the validity of testing result is not high, leads to the loss of actual testing in-process sample, has increased the detection cost, is unfavorable for monitoring efficiency's improvement.
SUMMERY OF THE UTILITY MODEL
To the problem that the above-mentioned background art provided, the utility model aims at: aims to provide a microorganism aerosol concentration sampler.
In order to realize the technical purpose, the utility model discloses a technical scheme as follows:
the utility model provides a concentrated sample thief of microorganism aerosol, includes sample thief machine case, and this sample thief machine incasement internally mounted has concentration pump and sampling pump, its characterized in that: a concentrator is connected to the upper part of the sampler case, a sampler is connected to the side of the sampler case, and the sampler is connected with a drying cylinder;
the sampler case is provided with an air inlet, a transition pipe for installing a concentrator is arranged above the sampler case, and a handle is hinged above the sampler case;
the center below the concentrator is connected with a main air path connector which can be matched with a transition pipe, an upper concentrator cover is arranged above the concentrator, the upper concentrator cover is provided with a gas sample inlet, the upper concentrator cover is connected with a dustproof cover, accelerating nozzles distributed in an annular mode are arranged in the concentrator, receiving nozzles are correspondingly arranged below the accelerating nozzles, a sealing gasket is connected between the accelerating nozzles and the receiving nozzles, an annular collecting bin is connected below the receiving nozzles, a sealing gasket is connected between the receiving nozzles and the annular collecting bin, the accelerating nozzles, the receiving nozzles and the annular collecting bin are connected through screws, and the annular collecting bin is in threaded connection with a concentrated gas outlet;
the sampler is provided with a sampler air inlet and a sampler air outlet, and the sampler air inlet is connected with the concentrated gas outlet;
the drying cylinder is provided with a drying cylinder air inlet and a drying cylinder air outlet, and the concentrated gas air outlet is connected with the drying cylinder air inlet.
Further inject, concentration pump and sampling pump are high load low noise sampling pump, and such structural design for concentration pump and sampling pump during operation are quiet steady, guarantee that service environment does not have noise pollution.
Further limiting, the flow of the concentration pump reaches 100L/min, and the structural design enables aerosol particles to be concentrated into the concentrator within standard time when the concentration sampler performs large-flow sampling, avoids biological activity loss caused by long-time sampling, and is particularly suitable for sampling of bacteria and viruses with low concentration of collected substances, such as legionella pneumophila, new coronavirus and the like.
The sampling device is further limited to be internally provided with three outlets connected with an air inlet of the sampling device, the flow of the sampling pump is 12.5L/min, the structural design enables the three outlets in the sampling device to allow 4.2L/min of air to pass through each hole, the flow rate of the three outlets in the sampling device is about 12.5 liters/min, the sampling pump is matched with the three outlets in the sampling device, the sampling is safer and more effective, and the sampling efficiency is improved due to the three outlets.
Further limiting, the flow control in the concentration pump and the sampling pump is controlled by adopting a PID flow algorithm, and the structural design ensures that the sampling flow control is more accurate and the effectiveness of the sample is ensured.
The utility model has the advantages that:
1. the multiple accelerating nozzles and the multiple receiving nozzles are distributed annularly, so that the concentration efficiency of microbial particles is improved, and the activity of microbial colonies in the sampler and the effectiveness of the sample are ensured;
2. the flow control precision is ensured by PID flow algorithm control, so that the aerosol flow is more stable;
3. the concentration sampler operates stably and has low noise.
Drawings
The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural diagram of an embodiment of a microorganism aerosol concentration sampler of the present invention;
FIG. 2 is a schematic view of the back side of an embodiment of the sampler for concentrating microbial aerosol according to the present invention;
FIG. 3 is a cross-sectional view of a concentrator in an embodiment of the sampler for concentrating microbial aerosol according to the present invention;
the main element symbols are as follows:
the sampler comprises a sampler case 1, a handle 2, a transition pipe 3, a concentrator 4, a concentrator upper cover 5, a dustproof cover 6, a concentrated gas outlet 7, a sampler gas inlet 8, a sampler gas outlet 9, a drying cylinder gas inlet 10, a drying cylinder gas outlet 11, a gas inlet 12, an accelerating nozzle 13, a sealing gasket 14, a receiving nozzle 15, a sealing gasket 16, an annular collecting bin 18, a main gas path connecting nozzle 22, a sampler 23 and a drying cylinder 24.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.
As shown in fig. 1-3, the utility model discloses a microorganism aerosol concentration sample thief, including sample thief machine case 1, this sample thief machine case 1 internally mounted has concentration pump and sampling pump, its characterized in that: the concentrator 4 is connected to the upper part of the sampler case 1, the sampler 23 is connected to the side of the sampler case 1, and the sampler 23 is connected with the drying cylinder 24;
the sampler case 1 is provided with an air inlet 12, a transition pipe 3 for installing a concentrator 4 is arranged above the sampler case 1, and a handle 2 is hinged above the sampler case 1;
the center below the concentrator 4 is connected with a main air path connector 22 which can be matched with the transition pipe 3, a concentrator upper cover 5 is arranged above the concentrator 4, the concentrator upper cover 5 is provided with an air sample inlet, the concentrator upper cover 5 is connected with a dust cover 6, accelerating nozzles 13 which are distributed annularly are arranged inside the concentrator 4, receiving nozzles 15 are correspondingly arranged below the accelerating nozzles 13, a sealing gasket 14 is connected between the accelerating nozzles 13 and the receiving nozzles 15, an annular collecting bin 18 is connected below the receiving nozzles 15, a sealing gasket 16 is connected between the receiving nozzles 15 and the annular collecting bin 18, the accelerating nozzles 13, the receiving nozzles 15 and the annular collecting bin 18 are connected through screws, and the annular collecting bin 18 is in threaded connection with a concentrated air outlet 7;
the sampler 23 is provided with a sampler air inlet 8 and a sampler air outlet 9, and the sampler air inlet 8 is connected with the concentrated gas outlet 7;
the drying cylinder 24 is provided with a drying cylinder air inlet 10 and a drying cylinder air outlet 11, and the concentrated gas air outlet 7 is connected with the drying cylinder air inlet 10.
In the implementation of the present invention, when concentration and sampling are required, the concentration pump is powered on, aerosol particles enter the concentrator 4 through the gas sample inlet under the action of the concentration pump, and then enter the receiving nozzle 15 corresponding to the accelerating nozzle 13 through the accelerating nozzle 13 distributed in an annular shape, in this process, because the concentration pump is connected to the main gas path nozzle 22, and the main gas path nozzle 22 is located at the center of the concentrator 4 and also at the annular center formed by the accelerating nozzle 13, the suction force of the main gas path nozzle 22 causes the microbial aerosol sprayed from the accelerating nozzle 13 to be subjected to a radial acting force, the gas in the aerosol enters the main gas path nozzle 22 under the radial force and is discharged by the concentration pump, and the microbial particles in the aerosol keep the original moving direction due to inertia, and then enter the receiving nozzle 15 downwards, along with the continuous operation of the concentration pump, the microorganism particles in the annular collection bin 18 are also continuously accumulated to form concentrated particles, and the concentration efficiency of the microorganism particles is accelerated by the plurality of accelerating nozzles 13 and the receiving nozzles 15 in the annular distribution structure;
when the microorganism particles are concentrated, the sampling pump is also electrified to start, under the action of the sampling pump, the concentrated microorganism particles enter the sampler 23 from the concentrated gas outlet 7 through the sampler gas inlet 8 and impact a liquid sampling medium in the sampler 23, the microorganism particles with larger inertia are captured by liquid to finish sampling, the microorganism particles with smaller inertia escape from the sampler gas outlet 9 along with air flow and enter the drying cylinder 24 through the drying cylinder gas inlet 10, and after drying is finished, the microorganism particles are discharged into the gas inlet 12 from the drying cylinder gas outlet 11, then enter the sampling pump connected with the gas inlet 12, and are discharged by the sampling pump.
Preferably, concentration pump and sampling pump are high load low noise sampling pump, such structural design for concentration pump and sampling pump during operation are quiet steady, guarantee that service environment does not have noise pollution. In fact, other types of concentrate and sample pumps may be specifically contemplated as the case may be.
Preferably, the flow of the concentration pump reaches 100L/min, and the structural design enables aerosol particles to be concentrated into the concentrator 4 within standard time when the concentration sampler performs large-flow sampling, so that the loss of biological activity caused by long-time sampling is avoided, and the sampling device is particularly suitable for sampling bacteria and viruses with low concentration of the collected substances, such as legionella pneumophila, new corona viruses and the like. In fact, other flow rates of the concentrator pump may be specifically contemplated as the case may be.
Preferably, three outlets connected with the air inlet 8 of the sampler 23 are arranged in the sampler 23, the flow of the sampling pump is 12.5L/min, the three outlets in the sampler 23 are designed in such a structure that 4.2L/min of air is allowed to pass through each hole, the flow rate of the combined flow reaches about 12.5 liters/min, the sampling pump is matched with the three outlets in the sampler 23, so that the sampling is safer and more effective, and the sampling efficiency is improved by the three outlets. In fact, other flow rates of the sampling pump may be specifically considered as the case may be.
Preferably, the flow control in the concentration pump and the sampling pump is controlled by adopting a PID flow algorithm, and the structural design ensures that the sampling flow control is more accurate and the effectiveness of the sample is ensured. In fact, other ways of flow control in the concentrate and sample pumps may be specifically contemplated as the case may be.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. The utility model provides a concentrated sample thief of microorganism aerosol, includes sample thief machine case (1), this sample thief machine case (1) internally mounted has concentration pump and sampling pump, its characterized in that: a concentrator (4) is connected above the sampler case (1), a sampler (23) is connected to the side of the sampler case (1), and the sampler (23) is connected with a drying cylinder (24);
the sampler is characterized in that the sampler case (1) is provided with an air inlet (12), a transition pipe (3) for installing a concentrator (4) is arranged above the sampler case (1), and a handle (2) is hinged above the sampler case (1);
concentrator (4) below center is connected with main gas circuit connector (22) that can match with transition pipe (3), concentrator (4) top is equipped with concentrator upper cover (5), concentrator upper cover (5) are equipped with the gas appearance entry, concentrator upper cover (5) are connected with shield (6), inside acceleration nozzle (13) that is equipped with the annular and distributes of concentrator (4), acceleration nozzle (13) below corresponds is equipped with receiving nozzle (15), be connected with seal gasket (14) between acceleration nozzle (13) and receiving nozzle (15), receiving nozzle (15) below is connected with annular and collects storehouse (18), be connected with seal ring (16) between receiving nozzle (15) and annular collection storehouse (18), acceleration nozzle (13), receiving nozzle (15) and annular are collected storehouse (18) and pass through the screw connection, the annular collecting bin (18) is in threaded connection with a concentrated gas outlet (7);
the sampler (23) is provided with a sampler air inlet (8) and a sampler air outlet (9), and the sampler air inlet (8) is connected with the concentrated gas outlet (7);
the drying cylinder (24) is provided with a drying cylinder air inlet (10) and a drying cylinder air outlet (11), and the concentrated gas air outlet (7) is connected with the drying cylinder air inlet (10).
2. A microbial aerosol concentration sampler according to claim 1, wherein: the concentration pump and the sampling pump are high-load low-noise sampling pumps.
3. A microbial aerosol concentration sampler according to claim 2, wherein: the flow rate of the concentration pump reaches 100L/min.
4. A microbial aerosol concentration sampler according to claim 3, wherein: the sampler (23) is internally provided with three outlets communicated with the air inlet (8) of the sampler, and the flow rate of the sampling pump is 12.5L/min.
5. A microbial aerosol concentration sampler according to claim 4, wherein: and the flow control in the concentration pump and the sampling pump is controlled by adopting a PID flow algorithm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121194149.XU CN215178981U (en) | 2021-05-31 | 2021-05-31 | Microorganism aerosol concentration sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121194149.XU CN215178981U (en) | 2021-05-31 | 2021-05-31 | Microorganism aerosol concentration sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215178981U true CN215178981U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121194149.XU Active CN215178981U (en) | 2021-05-31 | 2021-05-31 | Microorganism aerosol concentration sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215178981U (en) |
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2021
- 2021-05-31 CN CN202121194149.XU patent/CN215178981U/en active Active
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