CN219369290U - Air sampling device - Google Patents
Air sampling device Download PDFInfo
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- CN219369290U CN219369290U CN202320239099.5U CN202320239099U CN219369290U CN 219369290 U CN219369290 U CN 219369290U CN 202320239099 U CN202320239099 U CN 202320239099U CN 219369290 U CN219369290 U CN 219369290U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model relates to an air sampling device, and belongs to the technical field of air detection. The device comprises: the device comprises an air inlet pipe, an air outlet pipe, an air pump, an air absorption bottle and an air adsorption pipe, wherein one end of the air inlet pipe is connected with the air pump, the other end of the air inlet pipe is detachably connected with the air absorption bottle or the air adsorption pipe, one end of the air outlet pipe is connected with the air pump, and the other end of the air outlet pipe is a free end; the gas absorption bottle is internally provided with an absorption liquid for absorbing gas to be detected, a sampling bottle cap used in sampling and a sealing bottle cap used in sealing samples, wherein the sampling bottle cap comprises a gas inlet, a gas outlet and a hard guide pipe, the hard guide pipe is inserted into the gas inlet and extends into the absorption liquid, and the gas outlet is connected with a gas inlet pipe; the gas adsorption tube is internally provided with a solid adsorbent for adsorbing the gas to be detected and is provided with a sealing tube cover for sealing the gas adsorption tube. The air sampling device has the advantages of simple structure, convenient installation, convenient carrying, wide application range, low cost and easy popularization.
Description
Technical Field
The utility model relates to the technical field of air detection, in particular to an air sampling device.
Background
With the improvement of health consciousness and environmental consciousness of people, the indoor air quality problem is increasingly concerned. With the gradual rise of the requirements of the indoor air quality detection industry, and the higher requirements of detection equipment and detection modes.
The method for detecting the indoor air is generally reliable, wherein a detector samples an air sample on site, and the collected sample is sent to a laboratory to be analyzed and tested by professional detection equipment in the laboratory, so that the content of toxic and harmful substances in the air, especially formaldehyde, benzene and other gases, is quantified. The method has the advantages that the obtained detection result is high in sensitivity and accurate in quantification, however, most of the used air sampling equipment is complex in structure, the pipe fitting connection process, the sampling flow and the setting process of the sampling time are complex, so that professional personnel are required to finish the sampling on site, and the sampling equipment is high in price, large in size and difficult to carry, so that the air sampling equipment is difficult to popularize.
In summary, the existing air sampling method has high cost, and the sampling device has a complex structure and is not easy to carry, so that the air sampling method is difficult to popularize.
Disclosure of Invention
Based on the above, it is necessary to provide an air sampling device aiming at the problems that the existing air sampling method has higher cost, the structure of the sampling device is complex, the device is not easy to carry, and the popularization are difficult.
An air sampling device, comprising:
an air inlet pipe, an air outlet pipe, an air extracting pump, an air absorbing bottle and an air absorbing pipe,
one end of the air inlet pipe is connected with the air pump, the other end of the air inlet pipe is detachably connected with the air absorption bottle and/or the air absorption pipe, one end of the air outlet pipe is connected with the air pump, and the other end of the air outlet pipe is a free end;
the gas absorption bottle is internally provided with an absorption liquid for absorbing gas to be detected, a sampling bottle cap used in sampling and a sealing bottle cap used in sealing a sample, the sampling bottle cap comprises a gas inlet, a gas outlet and a hard guide pipe, the hard guide pipe is inserted into the gas inlet and extends into the absorption liquid, and the gas outlet is connected with the gas inlet pipe;
the gas adsorption tube is internally provided with a solid adsorbent for adsorbing gas to be detected and is provided with a sealing tube cover for sealing the gas adsorption tube.
In one embodiment, the air sampling device is provided with a control module which is electrically connected with the air pump and controls the air pump to work.
The control module is preset with a gas sampling mode, and the gas sampling mode comprises sampling information, sampling time and sampling flow.
The air sampling device is provided with a display screen and an operation button, and the operation button is used for controlling the control module to select the air sampling mode; the display screen is electrically connected with the control module and used for displaying the selected gas sampling mode.
In one embodiment, the air sampling device is provided with an alarm component electrically connected with the control module, and the alarm component is used for reminding the end of sampling when the sampling is finished.
In one embodiment, the air sampling device is provided with two air inlet pipes, namely a first air inlet pipe 2 and a second air inlet pipe 3, one end of the first air inlet pipe 2 is connected with the air suction pump, the other end of the first air inlet pipe is detachably connected with the gas adsorption pipe, one end of the second air inlet pipe 3 is connected with the air suction pump, and the other end of the second air inlet pipe is detachably connected with the air outlet of the gas absorption bottle.
In one embodiment, the air sampling device is provided with a positioning groove for placing the gas absorbing bottle.
In one embodiment, the air sampling device is provided with a power supply assembly electrically connected with the air pump.
When the air sampling device is used for sampling, the air pump rotates to work, so that the air is driven to be absorbed by the air absorption bottle and/or absorbed by the air absorption tube, then the air to be detected is introduced by the air inlet tube, and is discharged by the air outlet tube under the action of the air pump. The device simple structure, installation and dismantlement are convenient, not only portable, need not professional operation moreover, practice thrift the human cost.
In addition, the gas absorption bottle is internally provided with an absorption liquid for absorbing the gas to be detected, a sampling bottle cap used in sampling and a sealing bottle cap used in sealing the sample, and the gas absorption tube is internally provided with a solid adsorbent for adsorbing the gas to be detected and a sealing tube cap used for sealing the gas absorption tube. Therefore, according to the gas type to be detected, the corresponding absorption liquid or solid adsorbent can be selected, so that the application range of the device is enlarged, and the cost can be saved. The sampling bottle cap comprises an air inlet, an air outlet and a hard guide pipe, wherein the hard guide pipe is inserted into the air inlet and extends into the absorption liquid, the air outlet is connected with the air inlet pipe, the connection relationship is simple and easy to understand, and the operation is convenient. Therefore, the air sampling device is low in cost, simple and portable in structure and easy to popularize.
Drawings
FIG. 1 is a schematic diagram of an air sampling device before sampling according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an air sampling device during sampling according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a sealed storage structure of a gas absorbing bottle according to an embodiment of the present utility model;
fig. 4 is a schematic diagram of a gas absorption bottle according to an embodiment of the present utility model.
Reference numerals illustrate:
1. an air sampling device; 2. a first air inlet pipe; 3. a second air inlet pipe; 4. a first air outlet pipe; 5. a second air outlet pipe; 6. a positioning groove; 7. a display screen; 8. operating a button; 9. a gas absorption bottle; 10. an absorption liquid; 11. a gas adsorption tube; 12. a solid adsorbent; 13. an air outlet of the sampling bottle cap; 14. the sampling bottle cap is provided with an air inlet; 15. a rigid catheter; 16. and sealing the bottle cap.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, 2, 3 and 4, in one embodiment, an air sampling device 1 includes: the air inlet pipe, the air outlet pipe, the air pump, the air absorption bottle 9 and the air absorption pipe 11. One end of the air inlet pipe is connected with the air pump, the other end of the air inlet pipe is detachably connected with the gas absorption bottle 9 and/or the gas absorption pipe 11, one end of the air outlet pipe is connected with the air pump, and the other end of the air outlet pipe is a free end.
The gas absorption bottle 9 is internally provided with an absorption liquid 10 for absorbing gas to be detected, and is provided with a sampling bottle cap used in sampling and a sealing bottle cap 16 used in sealing samples, wherein the sampling bottle cap comprises an air inlet 14, an air outlet 13 and a hard guide pipe 15, the hard guide pipe 15 is inserted into the air inlet 14 and extends into the absorption liquid 10, and the air outlet 13 is connected with an air inlet pipe.
The gas adsorption tube 11 is internally provided with a solid adsorbent 12 for adsorbing a gas to be measured, and is provided with a sealing tube cover for sealing the gas adsorption tube 11.
In the air sampling device, when air is sampled, the air pump pumps air, so that negative pressure is formed inside the air absorption bottle 9 and/or the air absorption tube 11 connected with the air pump through the air inlet pipe, external air enters the air absorption bottle 9 and/or the air absorption tube 11 due to the air pressure difference between the outside of the air sampling device 1, and after the gas to be detected in the external air is absorbed by the absorption liquid 10 of the air absorption bottle 9 and/or the absorbent 12 of the air absorption tube 11, other gases are discharged through the air outlet pipe of the air sampling device 1 under the action of the air pump.
After the air sampling is completed, the gas absorption bottle 9 and/or the gas absorption tube 11 are/is separated from the gas inlet tube, and the sealing bottle cap 16 is/is connected with the gas absorption bottle 9 and/or the sealing tube cap is/are connected with the gas absorption tube 11 in a sealing way. After the sealing is finished, the sealed gas absorption bottle 9 and/or the gas absorption tube 11 are transported to a laboratory, and the laboratory is used for measuring data of the gas to be detected, including content, concentration and type, of the gas to be detected absorbed by the absorption liquid 10 of the gas absorption bottle 9 and/or the solid adsorbent 12 of the gas absorption tube 11, so as to realize the quality detection of the sampled site air.
During sampling, only the air inlet pipe is connected with the gas absorption bottle 9 and/or the gas absorption pipe 11; after the sampling is finished, the gas absorption bottle 9 and/or the gas absorption tube 11 are/is separated from the gas inlet tube and sealed. The air sampling device 1 is simple in structure, convenient to install and detach, convenient to carry, free of professional operation, and labor-saving.
According to the difference of the gas to be detected, the absorption liquid 10 in the gas absorption bottle 9 and the solid adsorbent 12 in the gas absorption tube 11 are selected to be different, so that the corresponding absorption liquid 10 or solid adsorbent 12 can be selected according to the type of the gas to be detected, on one hand, the requirement of collecting multiple samples by the same device is met, the application range of the air sampling device is wider, on the other hand, the corresponding absorption liquid or solid adsorbent can be purchased according to the requirement, and the sampling cost is reduced. Therefore, the air sampling device 1 is low in cost, simple and portable in structure and easy to popularize.
In one embodiment, the air sampling device 1 is provided with two air inlet pipes, namely a first air inlet pipe 2 and a second air inlet pipe 3, one end of the first air inlet pipe 2 is connected with an air pump, the other end of the first air inlet pipe is detachably connected with the air adsorption pipe 11, one end of the second air inlet pipe 3 is connected with the air pump, and the other end of the second air inlet pipe is detachably connected with the air outlet 13 of the air absorption bottle 9.
It can be understood that, according to the actual air sampling requirement, two or more air inlet pipes and/or air outlet pipes can be arranged, and the multi-channel design of the two or more air inlet pipes and/or the two or more air outlet pipes does not affect the principle of the air sampling device, but can improve the air inflow of the air sampling device 1 in unit time, thereby improving the absorption or adsorption efficiency of the absorption liquid 10 and the solid adsorbent 12. Meanwhile, the design of multiple channels can realize simultaneous sampling of various gases to be tested, and the sampling efficiency is further improved.
The absorption liquid 10 and the solid adsorbent 12 are used for absorbing and/or adsorbing gases including, but not limited to, formaldehyde, benzene series, TVOC (total volatile organic compounds) waiting for the gas to be measured.
The connection means of the sealing cap 16 and the gas absorbing bottle 9 include, but are not limited to, screw connection, glue connection, snap connection, etc. which can completely seal the gas absorbing bottle 9. Also, the connection means of the sealing tube cover and the gas adsorption tube 11 include, but are not limited to, screw connection, glue connection, snap connection, etc. to completely seal the gas adsorption tube 11. After the sampling is finished, the gas to be measured is sealed in the gas absorption bottle 9 and/or the gas absorption tube 11, so that the sample can be stored and transported conveniently, and the measurement accuracy of the sample is ensured.
The air inlet pipe, the air outlet pipe, the gas absorption bottle 9 and the gas absorption pipe 11 are all made of low-adsorption, corrosion-resistant and ageing-resistant materials, such as polytetrafluoroethylene polymers and the like, so that the service life of the air sampling device 1 is prolonged.
In one embodiment, the air sampling device 1 is provided with a control module which is electrically connected with the air pump and controls the operation of the air pump. The control module is preset with a gas sampling mode. The gas sampling mode comprises sampling information, sampling time and sampling flow. The gas sampling modes include, but are not limited to, formaldehyde sampling mode, benzene sampling mode, TVOC sampling mode.
The intelligent sampling of the air sampling device 1 is realized by setting the control module and presetting the air sampling mode, the automatic operation is realized, the automatic timing and the flow calculation are performed at the beginning of the sampling, the sampling is automatically finished according to the preset parameters of the selected air sampling mode, the dependence on professional sampling personnel is reduced, the labor cost is further reduced, the equipment structure and the sampling operation are simplified, and the popularization of the air sampling device 1 are facilitated.
The air sampling device 1 is provided with a display screen 7 and an operation button 8, wherein the operation button 8 is used for controlling the control module to select a gas sampling mode; the display screen 7 is electrically connected with the control module and is used for displaying sampling information, sampling time and sampling flow contained in the selected gas sampling mode in the control module. The visualized interaction mode further simplifies the sampling operation, eliminates the professional requirement when the air sampling device 1 is used, and is beneficial to popularization and popularizing of the air sampling device 1.
Before sampling, the control module is controlled by the operation button 8 to select a gas sampling mode, and the control module matches preset gas sampling mode information according to the selected gas sampling mode and invokes time parameters and flow parameters in the preset gas sampling mode. And when the sampling timing and/or the flow counting are started while the air pump is started, and when the preset time and/or the preset flow is reached, the sampling is automatically stopped.
In the preset gas sampling mode, the preset content can be any combination of data which can be adopted in the sampling process, including but not limited to sampling time, sampling flow rate and sampling information.
In one embodiment, the air sampling device 1 is provided with an alarm component electrically connected with the control module, and when the preset time and/or the preset flow rate are/is reached, the control module controls the air sucking pump to stop sucking air, and simultaneously controls the alarm component to start so as to make a sampling end reminder.
The alarm component is selected from a buzzer for vibration and sound reminding and a light emitting device for visual reminding. It is understood that any component, whether software or hardware, having a reminder function can be used as the alarm component of the present utility model. The alarm component with the reminding function can realize complete mechanization of the sampling process, and personnel operation or supervision is not needed in the sampling process. Not only reduces the labor cost, but also avoids the harm of the sampling environment to the body of sampling personnel.
In one embodiment, the air sampling device 1 is provided with a positioning groove 6 for placing the gas absorption bottle 9, when the gas absorption bottle 9 is placed in the positioning groove 6, the direction pointing to the sampling bottle cap along the bottle bottom of the gas absorption bottle 9 is opposite to the gravity direction, namely, the bottle bottom of the gas absorption bottle 9 is placed at the bottom of the positioning groove 6, and the sampling bottle cap is placed at the opening end of the positioning groove 6.
The connection manner of the gas absorbing bottle 9 and the positioning groove 6 includes, but is not limited to, a snap connection, a screw connection, etc. to vertically fix the gas absorbing bottle 9 to the positioning groove 6. Under the action of gravity, the absorption liquid 10 is positioned at the bottom of the gas absorption bottle 9, and the suction force applied to the absorption liquid 10 in the vertical upward direction can not overcome the action of gravity in the vertical downward direction on the absorption liquid 10 due to the air suction of the air suction pump, so that the absorption liquid 10 is prevented from being sucked into the air inlet pipe reversely, and chemical damage is avoided to the device 1.
In the sampling process, external air enters the absorption liquid 10 through the air inlet 14 and the hard conduit 15, the gas to be detected is absorbed in the absorption liquid 10, other gases escape from the absorption liquid 10, pass through the air outlet 13, pass through the second air inlet pipe 3 and the air suction pump, and then are discharged into the external air through the air outlet pipe. The positioning groove is provided with 6, so that the stability of the gas absorption bottle 9 in the air sampling process is guaranteed, and the safety of the sampling process is improved.
In the sampling process, external air can also enter through one end of the gas adsorption tube 11 which is not connected with the first air inlet tube 2, and enters the solid adsorbent 12 under the action of the air pump, in the solid adsorbent 12, the gas to be detected is adsorbed, other gases escape from the solid adsorbent 12, and after passing through the first air inlet tube 2 and the air pump, the other gases are discharged into the external air through the air outlet tube.
In one embodiment, the air sampling device 1 is provided with a power supply assembly electrically connected to the suction pump. Power components include, but are not limited to, power supplies that are equipped with a rechargeable battery, power supplies that require the installation of a disposable battery. The air sampling device 1 is internally provided with a power supply, so that the air sampling device can work under the condition of no external power supply and can be used in a portable mode.
The air pump is powered by the power supply component and is controlled to work by the control module. When sampling, the control module automatically extracts time parameters and/or flow parameters of the selected sampling mode according to the selected sampling mode, and then controls the air pump to start working. And when the preset time and/or the preset flow rate are/is reached, controlling the air extracting pump to stop working.
The air pump makes the amount of external air entering the absorption liquid 10 and/or the adsorbent 12 in unit time constant, and sets the sampling time for absorbing and/or adsorbing the gas to be detected, thereby controlling the volume of the sampled gas.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or in communication with each other, or in interaction with each other, unless otherwise specifically defined. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (8)
1. An air sampling device, comprising:
an air inlet pipe, an air outlet pipe, an air extracting pump, an air absorbing bottle and an air absorbing pipe,
one end of the air inlet pipe is connected with the air pump, the other end of the air inlet pipe is detachably connected with the air absorption bottle and/or the air absorption pipe, one end of the air outlet pipe is connected with the air pump, and the other end of the air outlet pipe is a free end;
the gas absorption bottle is internally provided with an absorption liquid for absorbing gas to be detected, a sampling bottle cap used in sampling and a sealing bottle cap used in sealing a sample, the sampling bottle cap comprises a gas inlet, a gas outlet and a hard guide pipe, the hard guide pipe is inserted into the gas inlet and extends into the absorption liquid, and the gas outlet is connected with the gas inlet pipe;
the gas adsorption tube is internally provided with a solid adsorbent for adsorbing gas to be detected and is provided with a sealing tube cover for sealing the gas adsorption tube.
2. The air sampling device of claim 1, wherein the air sampling device is provided with a control module electrically connected to the air pump and controlling the operation of the air pump.
3. The air sampling device of claim 2, wherein the control module is preset with a gas sampling mode, and the gas sampling mode comprises sampling information, sampling time and sampling flow.
4. An air sampling device according to claim 3, wherein the air sampling device is provided with a display screen and an operation button for controlling the control module to select the gas sampling mode; the display screen is electrically connected with the control module and used for displaying the selected gas sampling mode.
5. The air sampling device of claim 2, wherein the air sampling device is provided with an alarm assembly electrically connected to the control module, the alarm assembly being configured to alert the end of sampling when the sampling is completed.
6. The air sampling device according to claim 1, wherein the air sampling device is provided with two air inlet pipes, namely a first air inlet pipe and a second air inlet pipe, one end of the first air inlet pipe is connected with the air suction pump, the other end of the first air inlet pipe is detachably connected with the air suction pipe, one end of the second air inlet pipe is connected with the air suction pump, and the other end of the second air inlet pipe is detachably connected with the air outlet of the air absorption bottle.
7. The air sampling device of claim 1, wherein the air sampling device is provided with a positioning groove for placing the gas absorbing bottle.
8. The air sampling device of claim 1, wherein the air sampling device is provided with a power supply assembly electrically connected to the suction pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320239099.5U CN219369290U (en) | 2023-02-17 | 2023-02-17 | Air sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320239099.5U CN219369290U (en) | 2023-02-17 | 2023-02-17 | Air sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219369290U true CN219369290U (en) | 2023-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320239099.5U Active CN219369290U (en) | 2023-02-17 | 2023-02-17 | Air sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219369290U (en) |
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2023
- 2023-02-17 CN CN202320239099.5U patent/CN219369290U/en active Active
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