CN115389280A - Gas production device - Google Patents
Gas production device Download PDFInfo
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- CN115389280A CN115389280A CN202211341648.6A CN202211341648A CN115389280A CN 115389280 A CN115389280 A CN 115389280A CN 202211341648 A CN202211341648 A CN 202211341648A CN 115389280 A CN115389280 A CN 115389280A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 62
- 239000000463 material Substances 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract description 26
- 239000007789 gas Substances 0.000 description 97
- 238000000034 method Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
-
- 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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a gas sampling device, relates to the technical field of sample gas acquisition, and solves the technical problem that a continuous sampling device for unmanned aerial vehicle mounting is lacked in the prior art. The gas production device comprises a mounting frame, a gas production pipe, a mark gas generator, a first three-way valve, a micro pump and a second three-way valve, wherein the gas production pipe is coiled on the mounting frame, the mark gas generator, the first three-way valve, the micro pump and the second three-way valve are all arranged inside the mounting frame, and a gas inlet of the gas production pipe and the mark gas generator are respectively connected with two valve ports of the first three-way valve; the gas outlet of the gas production pipe and the micropump are respectively connected with two valve ports of the second three-way valve. According to the invention, each component is arranged on the mounting frame, so that the whole structure of the gas production device is highly integrated, the volume is reduced, the gas production device can be mounted on an unmanned aerial vehicle, and the gas production pipe is adopted for gas production, so that continuous sampling can be realized.
Description
Technical Field
The invention relates to the technical field of sample gas collection, in particular to a gas collection device.
Background
With the development of drone technology, drones are being used for the measurement of atmospheric environments step by step. The unmanned aerial vehicle platform can carry miniature equipment, the specific atmospheric pollutants concentration of direct measurement. Common methods for offline sampling by using an unmanned aerial vehicle include sampling by using an air bag (or an air tank), sampling by using an adsorption column, and the like. The air bag (or gas tank) sampling is that the unmanned aerial vehicle flies to a certain height and then collects the outside air into the air bag (or gas tank), and the air bag (or gas tank) is taken down to be used as an instrument for analysis after arriving at the ground, and the space and the weight are limited. The sampling method can only obtain a few point samples at each time, and cannot realize continuous collection in space. When the adsorption column is used for sampling, the organic matters are adsorbed by the adsorption column, and then the organic matters are treated by methods such as heating and the like on the ground, so that adsorbed gas is released and detected, and continuous spatial data of pollutant concentration cannot be obtained by the method.
The use of a tube as a container for gas collection so that gas collected at different times is stored at different locations within the tube is a new way to obtain continuous concentration data. Early studies used passive sampling, i.e., high vacuum tubes were opened at high altitudes to the air intake port orifice, allowing atmospheric air to enter the tube; as the pipe slowly descends in the atmosphere, more atmospheric gas enters the pipe as the atmospheric pressure increases, all the way to the surface. After the tube falls to the ground, the front end of the gas in the tube represents a high-altitude air mass, and the rear end of the gas represents a near-ground air mass; the vertical distribution of the gas can be reversely deduced from the data obtained by analyzing the gas by an instrument. This sampling method is named the AirCore method. In recent years, further development has been made to connect an air pump to the AirCore to actively sample the gas and analyze the sample for VOC or greenhouse gases. This type of sampler is known as an Active air core. The reports of comprehensive analysis of the samplers can see the potential of the Active airfre technology for unmanned aerial vehicle greenhouse gas monitoring, but there are also great limitations. First, in the existing reports, the Active AirCore has a limited internal volume and cannot support the requirement of sampling for a long time. In known applications, the sampling time is around 10 minutes. Secondly, the time of the Active AirCore has great uncertainty to the standard, the existing method only has the determinable initial time, namely, a section of standard gas is collected before the sample gas is collected, so that the time for starting sampling is conveniently identified in subsequent analysis, and then no technical solution exists for the accurate sample sampling time along with the flight process, for example, the aperture of a limiting hole for controlling the sampling flow is very small and is about 100 micrometers, the problem of flow rate caused by blockage easily occurs in the sampling process, and further the time is not accurate to the standard; thirdly, current sampling equipment does not have suitable installation design, leads to the sample thief volume to be huge relatively, and unmanned aerial vehicle carries the restriction.
Disclosure of Invention
The invention aims to provide a gas production device, and solves the technical problem that a continuous sampling device for unmanned aerial vehicle mounting is lacked in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a gas production device which comprises an installation frame, a gas production pipe, a mark gas generator, a first three-way valve, a micro pump and a second three-way valve, wherein the gas production pipe is coiled on the installation frame, the mark gas generator, the first three-way valve, the micro pump and the second three-way valve are all arranged in the installation frame, and a gas inlet of the gas production pipe and the mark gas generator are respectively connected with two valve ports of the first three-way valve; and the gas outlet of the gas production pipe and the micropump are respectively connected with one valve port of the second three-way valve.
Preferably, the mounting bracket includes two mutual parallel arrangement's fixed disk and sets up two connecting rod between the fixed disk, the connecting rod perpendicular to the fixed disk sets up, connecting rod quantity is a plurality of, and follows fixed disk circumference is circular the laying, the gas production pipe is around establishing on the connecting rod.
Preferably, one of the fixed disks is provided with a sample gas inlet and a sample gas outlet, the sample gas inlet is connected with the first three-way valve, and the sample gas outlet is connected with the second three-way valve.
Preferably, still include the remote control assembly, the remote control assembly sets up inside the mounting bracket, first three-way valve, micropump and the second three-way valve all with the remote control assembly is connected.
Preferably, still include the battery, the battery sets up inside the mounting bracket, remote control subassembly, first three-way valve, micropump and the second three-way valve all with the battery is connected.
Preferably, the remote control subassembly includes remote control switch and relay group, the battery the remote control switch and the relay group connects gradually, first three-way valve the second three-way valve and the micropump all with the relay group connects.
Preferably, the micro pump, the remote control switch, the relay set, the first three-way valve and the second three-way valve are respectively connected with the battery.
Preferably, the first three-way valve and the second three-way valve are both electromagnetic three-way valves.
Preferably, the length range of the gas production pipe is 100-200 meters.
This application adopts above technical scheme, possesses following beneficial effect at least:
coil the setting with the gas production pipe on the mounting bracket, reduce occuping of gas production pipe space, secondly all set up sign gas generator, first three-way valve, micropump and second three-way valve inside the mounting bracket, so highly integrated mode of setting up fundamentally reduces the volume of gas production device, and then can with its carry to unmanned aerial vehicle on, and continuous sampling can be realized to the use of gas production pipe, compensate the disappearance in the technique in the continuous sampling device field of unmanned aerial vehicle carry.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a gas production device according to an embodiment of the present invention;
fig. 2 is a schematic view of the overall layout structure of the gas production apparatus provided in the embodiment of the present invention;
FIG. 3 is a schematic diagram of a mounting rack structure provided by an embodiment of the invention;
fig. 4 is a schematic structural diagram of a connecting rod according to an embodiment of the present invention.
In fig. 1, a mounting frame; 2. gas production pipe; 3. identifying a gas generator; 4. a first three-way valve; 5. a micro-pump; 6. a second three-way valve; 7. fixing the disc; 8. a connecting rod; 9. a remote control component; 10. a battery; 11. a remote control switch; 12. a relay set.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present invention.
The specific embodiment of the invention provides a gas production device, which mainly comprises an installation frame 1, a gas production pipe 2, a mark gas generator 3, a first three-way valve 4, a micro pump 5 and a second three-way valve 6, and is shown by combining an attached drawing 1 and an attached drawing 2, wherein the gas production pipe 2 is coiled on the installation frame 1, the space occupied by the gas production pipe 2 is reduced to the maximum extent, the gas production pipe 2 is a slender pipe, and the mark gas generator 3, the first three-way valve 4, the micro pump 5 and the second three-way valve 6 are all arranged inside the installation frame 1, namely the gas production pipe 2 is coiled on the periphery sides of the mark gas generator 3, the first three-way valve 4, the micro pump 5 and the second three-way valve 6.
Secondly, the gas inlet of the gas production pipe 2 and the identification gas generator 3 are respectively connected with two valve ports of a first three-way valve 4; the gas outlet of the gas production pipe 2 and the micro pump 5 are respectively connected with two valve ports of a second three-way valve 6. Referring to fig. 1, the intermittent gas production is realized by controlling the two valve bodies of the first three-way valve 4 and the second three-way valve 6, and the connection between the labeled gas generator 3 and the first three-way valve 4 can intermittently provide labeled gas for labeling.
In the gas production device provided by the application, the length range of the elongated tube adopted by the gas production tube 2 can be 100-200 meters, such as 150 meters, the diameter range of the gas production tube can be 3-8 millimeters, the elongated tube can be used for keeping the gas sucked into the elongated tube within a certain range when the micro pump 5 pumps gas, so that the gas cannot be rapidly diffused, meanwhile, the longer gas production tube 2 can support the collection of gas for a longer time, more samples are collected, and in such a case, the collected gas cannot be mixed and diffused within a period of time after the gas production is finished, such as gas detection within two hours after the gas production.
This application can intermittent type nature let in the sign gas for carry out time sign, so can sample in order to the air of different positions, for example, when micropump 5 began work, first three-way valve 4 turned into and is connected with the sign gas, then first three-way valve 4 automatic switch another way is used for collecting the sampling gas, then switches to and is connected with the sign gas way, circulates in proper order. The sampled time of the sampling gas at a certain position in the pipe can be judged according to the time and the flow rate of the introduced identification gas. Secondly can also be according to unmanned aerial vehicle's GPS data, just can correspond spatial position according to sampling time to obtain the spatial concentration distribution characteristic of being detected gaseous. Secondly, the gas marking method can avoid the problem that the flow rate cannot be aligned with the time due to the blockage of the flow limiting hole between the micro pump 5 and the second three-way valve 6.
In the embodiment of this application, mounting bracket 1 includes two mutual parallel arrangement's fixed disk 7 and sets up the connecting rod 8 between two fixed disks 7, it is shown to combine fig. 2 ~ fig. 4, connecting rod 8 perpendicular to fixed disk 7 sets up, connecting rod 8 quantity is a plurality of, and be circular the laying along fixed disk 7 circumference, gas production pipe 2 is around establishing on connecting rod 8, connecting rod 8's in this application quantity can be for 8, fixed disk 7 can be two circular disk bodies that the size is the same, two circular disk body longitudinal symmetry set up, the mode of so circular laying, can make things convenient for coiling of gas production pipe 2, reserve great space in connecting rod 8's inner space simultaneously, be used for installing other parts.
Set up sample gas air inlet and sample gas outlet on one of them fixed disk 7, make things convenient for gaseous collection and carry out the connection of gas detection time measuring, the sample gas air inlet is connected with the third valve port of first three-way valve 4, the sample gas outlet is connected with the third valve port of second three-way valve 6, the sample gas air inlet all can adopt the wear plate to connect with the sample gas outlet, the wear plate connects the one end that is located mounting bracket 1 inside and is used for being connected with gas sampling pipe 2, the one end that is located mounting bracket 1 outside is used for admitting air respectively and is connected gaseous detection device.
The COM port of the first three-way valve 4 is connected with one end of an air inlet of the stainless steel gas production pipe 2, the NC port (the port which can be communicated only when the first three-way valve is electrified) of the first three-way valve 4 is connected with the mark gas generator 3 through a small section of hose, and the other valve port of the first three-way valve 4 is connected with a penetrating plate joint at the position of the sample gas inlet through a small section of hose. The COM port of the second three-way valve 6 is connected to the gas outlet end of the gas production pipe 2, the NC port of the second three-way valve 6 is connected to the plate penetrating connector of the sample gas outlet, and the third port of the second three-way valve 6 is connected to the micro pump 5 after passing through the flow limiting hole.
For the control of making things convenient for aircraft after taking off with gaseous collection, still need set up remote control assembly 9 for this reason, remote control assembly 9 sets up inside mounting bracket 1, and first three-way valve 4, micropump 5 and second three-way valve 6 all are connected with remote control assembly 9, and rethread remote control assembly 9 control sampling after the aircraft flies to appointed height.
In one embodiment, the remote control assembly 9 includes a remote control switch 11 and a relay set 12, the battery 10, the remote control switch 11 and the relay set 12 are connected in sequence, and the first three-way valve 4, the second three-way valve 6 and the micro pump 5 are connected to the relay set 12. The remote control switch 11 is used for realizing the remote control of the opening and closing of the gas production device; specifically, as shown in fig. 1, the relay set 12 includes two relays, the first three-way valve 4 and the second three-way valve 6 are electromagnetic three-way valves, and the first three-way valve 4, the second three-way valve 6 and the micropump 5 are controlled by the circuit connection manner shown in fig. 1.
In the embodiment of the present application, a battery 10 is further provided, the battery 10 is also provided inside the mounting frame 1, and the remote control assembly 9, the first three-way valve 4, the micro pump 5 and the second three-way valve 6 are all connected to the battery 10, so as to provide electric energy for each component through the battery 10. The battery 10 may be a lithium battery.
In order to reduce the overall weight of the gas production device, a light frame plate material, such as carbon fiber, aluminum alloy, etc., may be used as the material of the mounting frame 1.
Furthermore, 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 at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A gas production device is characterized by comprising a mounting frame (1), a gas production pipe (2), a mark gas generator (3), a first three-way valve (4), a micropump (5) and a second three-way valve (6), wherein the gas production pipe (2) is coiled on the mounting frame (1), the mark gas generator (3), the first three-way valve (4), the micropump (5) and the second three-way valve (6) are all arranged inside the mounting frame (1), and a gas inlet of the gas production pipe (2) and the mark gas generator (3) are respectively connected with two valve ports of the first three-way valve (4); the gas outlet of the gas production pipe (2) and the micro pump (5) are respectively connected with two valve ports of the second three-way valve (6).
2. The gas production device according to claim 1, wherein the mounting rack (1) comprises two fixing disks (7) arranged in parallel and a connecting rod (8) arranged between the two fixing disks (7), the connecting rod (8) is arranged perpendicular to the fixing disks (7), the connecting rods (8) are arranged in a plurality and are circularly arranged along the circumferential direction of the fixing disks (7), and the gas production pipe (2) is wound on the connecting rods (8).
3. A gas production device according to claim 2, wherein a sample gas inlet and a sample gas outlet are arranged on one of the fixed disks (7), the sample gas inlet is connected with the first three-way valve (4), and the sample gas outlet is connected with the second three-way valve (6).
4. A gas production device according to claim 1, further comprising a remote control assembly (9), the remote control assembly (9) being arranged inside the mounting frame (1), the first three-way valve (4), the micro-pump (5) and the second three-way valve (6) all being connected with the remote control assembly (9).
5. A gas production device according to claim 4, further comprising a battery (10), the battery (10) being arranged inside the mounting frame (1), the remote control assembly (9), the first three-way valve (4), the micro-pump (5) and the second three-way valve (6) all being connected with the battery (10).
6. A gas production device according to claim 5, characterized in that the remote control assembly (9) comprises a remote control switch (11) and a relay set (12), the battery (10), the remote control switch (11) and the relay set (12) are connected in sequence, and the first three-way valve (4), the second three-way valve (6) and the micropump (5) are all connected with the relay set (12).
7. A gas production device according to claim 6, characterized in that the micro pump (5) connection, the remote control switch (11), the relay group (12), the first three-way valve (4) and the second three-way valve (6) are connected with the battery (10) respectively.
8. A gas recovery device according to claim 1, characterized in that the first three-way valve (4) and the second three-way valve (6) are electromagnetic three-way valves.
9. A gas production device as claimed in claim 1, characterized in that the length of the gas production tube (2) ranges from 100 to 200 meters.
10. A gas production device according to claim 1, characterized in that the material of the mounting frame (1) is carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211341648.6A CN115389280A (en) | 2022-10-31 | 2022-10-31 | Gas production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211341648.6A CN115389280A (en) | 2022-10-31 | 2022-10-31 | Gas production device |
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| Publication Number | Publication Date |
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| CN115389280A true CN115389280A (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211341648.6A Pending CN115389280A (en) | 2022-10-31 | 2022-10-31 | Gas production device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206593924U (en) * | 2017-03-28 | 2017-10-27 | 广西壮族自治区环境保护科学研究院 | A kind of environmental protection atmosphere sampler |
| CN110296324A (en) * | 2019-07-18 | 2019-10-01 | 中海石油气电集团有限责任公司 | A kind of the gas pipe leakage monitoring method and device of adjustable monitoring distance |
| CN110319351A (en) * | 2019-07-18 | 2019-10-11 | 中海石油气电集团有限责任公司 | Pipeline gas micro-leakage continuous monitoring method and device based on detection pipe |
| CN210852923U (en) * | 2019-11-15 | 2020-06-26 | 南京禾谱航空科技有限公司 | Unmanned aerial vehicle gas sampler capable of eliminating influence of propeller airflow |
| CN113358423A (en) * | 2021-05-20 | 2021-09-07 | 合肥学院 | Quasi-continuous environment atmospheric gas sampling device |
| CN114839003A (en) * | 2022-04-22 | 2022-08-02 | 浙江工业大学 | Multichannel VOCs sampling and atmospheric pollutants detecting system based on unmanned aerial vehicle |
-
2022
- 2022-10-31 CN CN202211341648.6A patent/CN115389280A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206593924U (en) * | 2017-03-28 | 2017-10-27 | 广西壮族自治区环境保护科学研究院 | A kind of environmental protection atmosphere sampler |
| CN110296324A (en) * | 2019-07-18 | 2019-10-01 | 中海石油气电集团有限责任公司 | A kind of the gas pipe leakage monitoring method and device of adjustable monitoring distance |
| CN110319351A (en) * | 2019-07-18 | 2019-10-11 | 中海石油气电集团有限责任公司 | Pipeline gas micro-leakage continuous monitoring method and device based on detection pipe |
| CN210852923U (en) * | 2019-11-15 | 2020-06-26 | 南京禾谱航空科技有限公司 | Unmanned aerial vehicle gas sampler capable of eliminating influence of propeller airflow |
| CN113358423A (en) * | 2021-05-20 | 2021-09-07 | 合肥学院 | Quasi-continuous environment atmospheric gas sampling device |
| CN114839003A (en) * | 2022-04-22 | 2022-08-02 | 浙江工业大学 | Multichannel VOCs sampling and atmospheric pollutants detecting system based on unmanned aerial vehicle |
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