CN219675602U - Portable air sampling instrument and device - Google Patents
Portable air sampling instrument and device Download PDFInfo
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- CN219675602U CN219675602U CN202320569348.7U CN202320569348U CN219675602U CN 219675602 U CN219675602 U CN 219675602U CN 202320569348 U CN202320569348 U CN 202320569348U CN 219675602 U CN219675602 U CN 219675602U
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- pipeline
- sampling instrument
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- 238000005070 sampling Methods 0.000 title claims abstract description 77
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 8
- 231100000719 pollutant Toxicity 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 238000001179 sorption measurement Methods 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 5
- 239000003570 air Substances 0.000 description 155
- 239000007789 gas Substances 0.000 description 19
- 238000001514 detection method Methods 0.000 description 6
- 239000012855 volatile organic compound Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
Classifications
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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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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a portable air sampling instrument and device, and belongs to the technical field of air sampling equipment. The portable air sampling instrument comprises a shell, an air pump, an air inlet pipeline, a collecting device, an air outlet pipeline, a pressure measuring device and a control device. Wherein the interior of the shell is hollow, and the surface of the shell is provided with an air inlet and an air outlet; the air pump is arranged in the shell and is used for extracting air; one end of the air inlet pipeline is connected with the air inlet, and the other end of the air inlet pipeline is connected with the air inlet end of the air pump; the collecting device is arranged in the air inlet pipeline, electromagnetic valves are respectively arranged at two ends of the collecting device, and the collecting device is used for collecting pollutants in the air; one end of the air outlet pipeline is connected with the air outlet end of the air pump, and the other end of the air outlet pipeline is connected with the air outlet; the pressure measuring device is connected with the air outlet pipeline and is used for measuring the pressure of the air passing through the air outlet pipeline; the control device is electrically connected with the air pump, the pressure measuring device and the electromagnetic valve and used for controlling the opening and closing of the air pump, the pressure measuring device and the electromagnetic valve.
Description
Technical Field
The utility model relates to the technical field of air sampling equipment, in particular to a portable air sampling instrument and a portable air sampling device.
Background
In recent years, with the development of society, environmental problems are becoming more and more serious, and more residents begin to pay attention to the air quality of houses. For example, formaldehyde and other volatile organic compounds can be tested after finishing the new house or after putting furniture in place, so that the condition that the content of harmful gases in the air exceeds the standard is prevented from affecting the health.
In the conventional air quality detection technology for a house, residents generally invite a professional institution to go to the door for indoor air sampling, and air with a specified flow rate passes through an adsorption medium during sampling, so that the adsorption medium adsorbs harmful substances in the air, and after the process lasts for a certain time, the obtained adsorption medium sample adsorbing the harmful substances is brought back to a laboratory for analysis, so that the concentration of volatile organic compounds in the air in the house is calculated. However, as the traditional air sampling instrument needs to enable sampling personnel to arrive in the field in person, the labor cost of air quality detection is increased, and the air sampling instrument needs to be coordinated with the time of a householder, so that the arrangement of the sampling personnel is not facilitated; after the sampling personnel arrive at the site, the sampling personnel also need to connect a gas pipeline, adjust the gas flow rate and set the acquisition time, so that a great deal of time is wasted.
In summary, since the conventional air sampling apparatus requires a professional to arrange the air sampling apparatus on site, the labor cost is high, and the apparatus requires an on-site connection of the air pipe, resulting in a large number of constituent members and inconvenience in handling.
Disclosure of Invention
Accordingly, it is desirable to provide a portable air sampling device and apparatus that can reduce the cost of air detection, facilitate transportation, and simplify operation without requiring specialized sampling personnel to go to the door for sampling.
A portable air sampling instrument, comprising:
the shell is hollow in the shell, and the surface of the shell is provided with an air inlet and an air outlet;
the air pump is arranged in the shell and is used for extracting air;
one end of the air inlet pipeline is connected with the air inlet, and the other end of the air inlet pipeline is connected with the air inlet end of the air pump;
the collecting device is arranged in the air inlet pipeline, electromagnetic valves are respectively arranged at two ends of the collecting device, and the collecting device is used for collecting pollutants in the air;
one end of the air outlet pipeline is connected with the air outlet end of the air pump, and the other end of the air outlet pipeline is connected with the air outlet;
the pressure measuring device is connected with the air outlet pipeline and is used for measuring the pressure of the air passing through the air outlet pipeline;
and the control device is electrically connected with the air pump, the pressure measuring device and the electromagnetic valve and used for controlling the opening and closing of the air pump, the pressure measuring device and the electromagnetic valve.
In one embodiment, the collecting device is an activated carbon composite adsorption tube, and the activated carbon composite adsorption tube is detachably connected with the air inlet pipeline.
In one embodiment, the pressure measuring device is a pressure sensor and is used for acquiring a pressure signal of the gas passing through the gas outlet pipeline and converting the pressure signal into an electric signal to be sent to the control device.
In one embodiment, the portable air sampling instrument further comprises a display screen, and the display screen is connected with the control device and used for displaying real-time data measured by the pressure sensor.
In one embodiment, the display screen is fixedly mounted on the top of the housing.
In one embodiment, the control device includes:
the output end of the power supply circuit is connected with the air pump, the electromagnetic valve, the pressure sensor and the display screen, and the input end of the power supply circuit is connected with a power supply;
the calculation module is respectively connected with the power supply circuit, the pressure sensor and the display screen, and is used for receiving the electric signals sent by the pressure sensor and calculating the volume of the gas passing through the gas outlet pipeline;
and the control button is arranged on the shell, connected with the power supply circuit and used for controlling the switch.
In one embodiment, the housing includes a base and a top cover detachably mounted on top of the base, and a cavity is formed between the top cover and the base.
In one embodiment, the portable air sampling device further comprises a support frame detachably mounted at the bottom end of the housing.
In one embodiment, the support frame is a retractable tripod.
The utility model provides a portable air sampling device, includes portable air sampling appearance to and power cord and portable case, the both ends of power cord are connected respectively controlling means and power supply, the inside cavity of portable case is used for accomodating portable air sampling appearance and power cord.
According to the portable air sampling instrument and the portable air sampling device, a user opens the electromagnetic valve, the pressure measuring device and the air pump through the control device, and after the air pump starts to work, the air pressure in the air inlet pipeline is adjusted to be negative pressure, so that indoor air enters the air inlet pipeline from the air inlet; in the air inlet process, the collecting device collects pollutants in the air, and the collected air is discharged from the air outlet through the air outlet pipeline; after the pressure measuring device detects that the volume of the gas passing through the gas outlet pipeline reaches a preset value, the air pump, the electromagnetic valve and the pressure measuring device stop working through the control device, and air sampling is finished. Compared with the traditional air sampling instrument, the air sampling instrument is simple to operate, can be used for self-sampling by a user, does not need a professional sampling personnel to go up, and saves a great amount of labor cost; on the other hand, the structure is simple, the pipeline is not required to be assembled on site, and the carrying and mailing are convenient.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a portable air sampling device according to an embodiment of the present utility model;
fig. 2 is a partial schematic view of a portable air sampling instrument according to an embodiment of the present utility model.
Reference numerals:
100. a housing; 120. an air inlet; 140. an air outlet; 200. an air pump; 300. an air intake duct; 400. a collection device; 420. an electromagnetic valve; 500. an air outlet pipe; 600. a pressure measuring device; 700. a control device; 720. a power supply circuit; 740. a computing module; 760. a control button; 800. and a display screen.
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.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present utility model for the purpose of illustration only and do not represent the only embodiment.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a 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 utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
Unless defined otherwise, all technical and scientific terms used in the specification of the present utility model have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in the description of the present utility model includes any and all combinations of one or more of the associated listed items.
The portable air sampling device and apparatus of the present utility model are described below with reference to fig. 1 and 2.
As shown in fig. 1, in one embodiment, a portable air sampling apparatus includes a housing 100, an air pump 200, an air inlet pipe 300, a collection device 400, an air outlet pipe 500, a pressure measuring device 600, and a control device 700. Wherein the interior of the casing 100 is hollow, and the surface has an air inlet 120 and an air outlet 140; the air pump 200 is installed inside the cabinet 100 to pump air; one end of the air inlet pipe 300 is connected with the air inlet 120, and the other end is connected with the air inlet end of the air pump 200; the collecting device 400 is arranged in the air inlet pipeline 300, and electromagnetic valves 420 are respectively arranged at two ends of the collecting device 400, and the collecting device 400 is used for collecting pollutants in the air; one end of the air outlet pipeline 500 is connected with the air outlet end of the air pump 200, and the other end is connected with the air outlet 140; the pressure measuring device 600 is connected to the gas outlet pipe 500 for measuring the pressure of the gas passing through the gas outlet pipe 500; the control device 700 is electrically connected with the air pump 200, the pressure measuring device 600 and the electromagnetic valve 420, and is used for controlling the opening and closing of the air pump 200, the pressure measuring device 600 and the electromagnetic valve 420. Wherein, the pressure measuring device 600 can be a liquid column type pressure measuring instrument, an elastic pressure measuring instrument or a sensor pressure measuring instrument.
Specifically, for the user who has air quality detection demand, the sampling mechanism of being inconvenient for the professional sampling personnel to go to the door again and sample, can mail this device to user department, and the user is according to the instruction by oneself to indoor air sampling to after the sampling finishes with this device original mailing back sampling mechanism, sampling mechanism is through carrying out the analysis to the inside collection device 400 of this device, thereby obtains the air quality testing result in the user living environment.
In the portable air sampling apparatus, a user opens the electromagnetic valve 420, the pressure measuring device 600 and the air pump 200 through the control device 700, and after the air pump 200 starts to operate, the air pressure in the air inlet pipe 300 is adjusted to be negative pressure, so that indoor air enters the air inlet pipe 300 from the air inlet 120; in the air intake process, the collecting device 400 collects pollutants in the air, and the collected air is discharged from the air outlet 140 through the air outlet pipeline 500; after the pressure measuring device 600 detects that the volume of the gas passing through the gas outlet pipe 500 reaches a preset value, the air pump 200, the electromagnetic valve 420 and the pressure measuring device 600 are stopped by the control device 700, and the air sampling is finished. Compared with the traditional air sampling instrument, the air sampling instrument is simple to operate, can be used for self-sampling by a user, does not need a professional sampling personnel to go up, and saves a great amount of labor cost; on the other hand, the structure is simple, the pipeline is not required to be assembled on site, and the carrying and mailing are convenient.
In this embodiment, the collecting device 400 is an activated carbon composite adsorption tube, and the activated carbon composite adsorption tube is detachably connected to the air inlet pipe 300. Specifically, tenax TA and activated carbon are common adsorption materials, can collect volatile organic compounds in air and desorb the volatile organic compounds under specific conditions, are commonly used for collecting and analyzing the volatile organic compounds in the air, but have different adsorption capacities, so that a certain deviation exists in the collection effect of the volatile organic compounds in the air. The collection device 400 can adopt a Tenax TA-activated carbon composite adsorption tube, and can effectively adsorb pollutants in the air when the air passes through.
In this embodiment, the pressure measuring device 600 is a pressure sensor, and is configured to acquire a pressure signal of the gas passing through the gas outlet pipe 500, and convert the pressure signal into an electrical signal and send the electrical signal to the control device 700. Specifically, the pressure sensor is a device capable of sensing a pressure signal and converting the pressure signal into a usable output electrical signal according to a certain rule, the pressure sensor is connected to the air outlet pipeline 500, when the air pump 200 is opened, air flows into the air inlet pipeline 300 and is discharged through the air outlet pipeline 500 after passing through the acquisition device 400 along the air inlet pipeline 300, in the air inlet process, the pressure sensor senses the pressure transmitted by the air flow and converts the pressure signal into an electrical signal to be sent to the control device 700, the control device 700 calculates the total air volume passing through the air inlet pipeline 300 according to the received electrical signal, and when the total air volume reaches a preset value, the air pump 200 and the electromagnetic valve 420 are controlled to be closed, so that the sampling is completed; the total volume of air entering the air intake duct 300 is controlled by the pressure sensor and control device 700 to make the ratio of the pollutant content in the collection device 400 to the total volume of air more accurate.
As shown in fig. 2, in this embodiment, the portable air sampling apparatus further includes a display screen 800, where the display screen 800 is connected to the control device 700, and is used for displaying real-time data measured by the pressure sensor.
Specifically, the total air volume passing through the air inlet pipe 300 and the opening time of the air pump 200 are displayed on the display screen 800 in real time, and if the total air volume reaches the preset value and the air pump 200 is not automatically closed, the user is prompted to manually close the air pump 200 and the electromagnetic valve 420.
In this embodiment, the display screen 800 is fixedly mounted on the top of the cabinet 100. Specifically, in order to facilitate the portable air sampling device to be carried and moved, the display screen 800 is fixedly installed at the top of the casing 100, the connection line between the display screen 800 and the control device 700 is arranged inside the casing 100, and the portable air sampling device can be moved as a whole by moving the casing 100.
In this embodiment, the control device 700 includes a power supply circuit 720, a calculation module 740 and a control button 760, wherein an output end of the power supply circuit 720 is connected to the air pump 200, the electromagnetic valve 420, the pressure sensor and the display screen 800, and an input end is connected to a power supply; the calculation module 740 is respectively connected with the power supply circuit 720, the pressure sensor and the display screen 800, and is used for receiving the electric signal sent by the pressure sensor and calculating the volume of the gas passing through the gas outlet pipeline 500; a control button 760 is mounted to the housing 100 and is coupled to the power circuit 720 for controlling the switch.
Specifically, considering the safety problem during mailing and carrying, the portable air sampling apparatus adopts a general power interface to intensively supply power, the power supply circuit 720 is electrically connected with the air pump 200, the electromagnetic valve 420, the pressure sensor, the computing module 740 and the display screen 800, the control button 760 controls the on-off and the off of the power supply circuit 720 to simultaneously control the air pump 200, the electromagnetic valve 420, the pressure sensor, the computing module 740 and the switch of the display screen 800, and the computing module 740 is a processor with built-in algorithm and can calculate the corresponding gas volume according to the received electric signal.
It should be noted that, during the analysis of the acquisition device 400 by the detection mechanism, if the detection result is greatly different from the conventional case, it may be that the sampling volume is not in accordance with the standard due to the failure of the pressure sensor or the calculation module 740, and the sampling instrument needs to be replaced to perform the sampling measurement again.
In this embodiment, the casing 100 includes a base and a top cover, and the top cover is detachably mounted on the top of the base and forms a cavity with the base. Specifically, in the process of installing and taking out the collecting device 400, the casing 100 needs to be removed, so in this embodiment, the casing 100 is formed by assembling the base and the top cover, and the base and the top cover are detachably connected through the fastening piece, so that the collecting device 400 is more convenient to install and take out.
In this embodiment, the portable air sampling apparatus further includes a support frame detachably mounted at the bottom end of the housing 100.
In this embodiment, the support frame is a retractable tripod. Specifically, because the sampling environment is different from each other, the air inlet 120 of the portable air sampling instrument can be ensured to be at a proper height by arranging the telescopic supporting frame, and then the ambient air is fully absorbed.
In one embodiment, a portable air sampling device comprises a portable air sampling instrument, a power line and a portable box, wherein two ends of the power line are respectively connected with a control device 700 and a power supply, and the interior of the portable box is hollow and is used for accommodating the portable air sampling instrument and the power line. Specifically, portable air sampling appearance and power cord are accomodate inside the portable case, wholly carry or mail, prevent damage and lose.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby 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 (10)
1. A portable air sampling instrument, comprising:
the shell is hollow in the shell, and the surface of the shell is provided with an air inlet and an air outlet;
the air pump is arranged in the shell and is used for extracting air;
one end of the air inlet pipeline is connected with the air inlet, and the other end of the air inlet pipeline is connected with the air inlet end of the air pump;
the collecting device is arranged in the air inlet pipeline, electromagnetic valves are respectively arranged at two ends of the collecting device, and the collecting device is used for collecting pollutants in the air;
one end of the air outlet pipeline is connected with the air outlet end of the air pump, and the other end of the air outlet pipeline is connected with the air outlet;
the pressure measuring device is connected with the air outlet pipeline and is used for measuring the pressure of the air passing through the air outlet pipeline;
and the control device is electrically connected with the air pump, the pressure measuring device and the electromagnetic valve and used for controlling the opening and closing of the air pump, the pressure measuring device and the electromagnetic valve.
2. The portable air sampling instrument according to claim 1, wherein the collection device is an activated carbon composite adsorption tube detachably connected to the air inlet pipe.
3. The portable air sampling instrument according to claim 1, wherein the pressure measuring device is a pressure sensor for acquiring a pressure signal of the gas passing through the gas outlet pipe and converting the pressure signal into an electrical signal to be sent to the control device.
4. A portable air sampling device according to claim 3, further comprising a display screen connected to said control means for displaying real time data measured by said pressure sensor.
5. The portable air sampling instrument of claim 4, wherein the display screen is fixedly mounted to a top of the housing.
6. The portable air sampling instrument of claim 4, wherein the control device comprises:
the output end of the power supply circuit is connected with the air pump, the electromagnetic valve, the pressure sensor and the display screen, and the input end of the power supply circuit is connected with a power supply;
the calculation module is respectively connected with the power supply circuit, the pressure sensor and the display screen, and is used for receiving the electric signals sent by the pressure sensor and calculating the volume of the gas passing through the gas outlet pipeline;
and the control button is arranged on the shell, connected with the power supply circuit and used for controlling the switch.
7. The portable air sampling device of claim 1, wherein the housing comprises a base and a top cover removably mounted to a top of the base and defining a cavity with the base.
8. The portable air sampling instrument of any one of claims 1 to 7, further comprising a support frame removably mounted to a bottom end of the housing.
9. The portable air sampling device of claim 8, wherein the support frame is a retractable tripod.
10. A portable air sampling device, characterized by comprising the portable air sampling instrument according to any one of claims 1 to 9, a power line and a portable box, wherein two ends of the power line are respectively connected with the control device and a power supply, and the interior of the portable box is hollow and is used for accommodating the portable air sampling instrument and the power line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320569348.7U CN219675602U (en) | 2023-03-21 | 2023-03-21 | Portable air sampling instrument and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320569348.7U CN219675602U (en) | 2023-03-21 | 2023-03-21 | Portable air sampling instrument and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219675602U true CN219675602U (en) | 2023-09-12 |
Family
ID=87921935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320569348.7U Active CN219675602U (en) | 2023-03-21 | 2023-03-21 | Portable air sampling instrument and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219675602U (en) |
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2023
- 2023-03-21 CN CN202320569348.7U patent/CN219675602U/en active Active
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