CN219996654U - Portable field gas isobaric sampler - Google Patents
Portable field gas isobaric sampler Download PDFInfo
- Publication number
- CN219996654U CN219996654U CN202321570805.0U CN202321570805U CN219996654U CN 219996654 U CN219996654 U CN 219996654U CN 202321570805 U CN202321570805 U CN 202321570805U CN 219996654 U CN219996654 U CN 219996654U
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- air
- sampling
- hose
- sampler
- ring body
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- 238000005070 sampling Methods 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 239000002689 soil Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 23
- 230000004907 flux Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000005431 greenhouse gas Substances 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004158 soil respiration Methods 0.000 description 3
- 230000031018 biological processes and functions Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012625 in-situ measurement Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a portable field gas isobaric sampler which comprises a cylinder body, a sealing hoop, a transparent cover cap, a circulating air pump box and a gas sampling bag, wherein the sealing hoop is arranged at the upper end part of the cylinder body close to an upper port, the transparent cover cap can be covered on the sealing hoop at the upper end of the cylinder body, a plurality of first sampling joints are arranged at the top of the transparent cover cap, the first sampling joints are respectively and correspondingly connected with a first air inlet joint and a first air outlet joint of the circulating air pump box through a first air transmission hose and a first return hose, a second air inlet joint and a second air outlet joint of the circulating air pump box are respectively and correspondingly connected with a second sampling joint on the gas sampling bag through a second air transmission hose and a second return hose, and a control valve is further arranged on the second air transmission hose and the second return hose. The utility model has simple structure, can rapidly sample the gas of the target acquisition point after simple field installation, and has flexible and convenient carrying and use.
Description
Technical Field
The utility model relates to the technical field of soil greenhouse gas flux monitoring and research, in particular to a portable field gas isobaric sampler.
Background
Soil respiration is a main way for returning gas from the land ecosystem to the atmosphere, and is also a representation of life activities in soil, and accurate measurement of release amount is a key for evaluating biological processes in the ecosystem. By monitoring soil respiration and its related parameters, the response of root systems and soil microorganisms to climate change can be estimated. The flux of the soil greenhouse gas (C2O, N2O, CH) is influenced by various complex physical and biological processes in time and space, and the soil greenhouse gas flux is measured continuously and accurately for a long time, so that the method has great significance for the research of the land ecological system.
Currently, related researchers in the field have achieved some results in monitoring soil respiration and its related parameters, including various in situ measurement devices of soil carbon flux that have been developed. For example, a monitoring device for researching the relation between illumination and soil carbon flux is disclosed in publication No. CN109212166A, and an on-line monitoring device for soil carbon flux is disclosed in publication No. CN 109212167A. However, the devices belong to fixed-point long-term monitoring devices, are inconvenient to carry and are not suitable for the condition of carrying out temporary mobile sampling in the field. Therefore, there is a need to design a new portable sampler.
Disclosure of Invention
Based on the defects of the prior art, the utility model aims to provide the portable field gas isobaric sampler which has a simple structure, can rapidly carry out isobaric sampling on a target sampling point after simple field installation, and is flexible and convenient to carry and use.
The technical scheme of the utility model is as follows: the utility model provides a portable open-air gaseous isobaric sampler, includes barrel, sealed hoop, transparent shroud, circulation air pump case and gas sampling bag, sealed hoop sets up the upper end of barrel and is close to upper port department, transparent shroud can be covered and put on the sealed hoop of the upper end of barrel, the top of transparent shroud is provided with a plurality of first sampling joint, first sampling joint corresponds respectively with the first air inlet connection and the first exhaust joint of circulation air pump case through first air hose and first backflow hose and is connected, the second air inlet connection and the second exhaust joint of circulation air pump case correspond respectively through second air hose and second backflow hose and are connected with the second sampling joint on the gas sampling bag, still be provided with the control valve on second air hose and the second backflow hose.
Preferably, the sealing hoop comprises an upper ring body and a lower ring body, a sealing ring is clamped between the upper ring body and the lower ring body, and the inner diameter surface of the sealing ring is tightly matched with the cylinder body.
Preferably, the upper ring body and the lower ring body are connected with each other through a connecting piece, and the connecting piece is a riveting piece or a screw-connection piece.
Preferably, an elastic sealing layer is arranged on the lower end cover opening of the transparent cover.
Preferably, the cylinder is a plastic tube, the lower end of which is provided with a sharp portion for pressing into the earth.
The utility model has the beneficial effects that: the utility model is composed of a cylinder body, a sealing hoop, a transparent cover cap, a circulating air pump box, an air sampling bag and an air hose, and has simple structure and convenient carrying. The constant pressure sampling can be rapidly carried out on the target sampling point through simple field installation, and the device is flexible and convenient to use.
Drawings
Fig. 1 is a schematic diagram of an application state of a portable field gas isobaric sampler in an embodiment.
FIG. 2 is a schematic view of the structure of the cylinder, sealing hoop and transparent cover in an embodiment.
In the figure: 1-a cylinder body 2-a sealing hoop 2.1-an upper ring body 2.3-a lower ring body 2.3-a sealing ring 3-a transparent cover 3.1-a first sampling joint 3.2-an elastic sealing layer 4-a circulating air pump box 4.1-a first air inlet joint 4.2-a first air outlet joint 4.3-a second air inlet joint 4.4-a second air outlet joint 5-a gas sampling bag 5.1-a second sampling joint 6-a first gas transmission hose 7-a first backflow hose 8-a second gas transmission hose 9-a second backflow hose 10-a control valve.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings so that those skilled in the art can understand the technical contents of the present utility model.
As shown in fig. 1 and 2, the portable field gas isobaric sampler of the present utility model comprises a cylinder 1, a sealing hoop 2, a transparent cover 3, a circulating gas pump box 4 and a gas sampling bag 5.
The sealing hoop 2 is arranged at the upper end part of the cylinder body 1 and is close to an upper port, the transparent cover 3 can be covered on the sealing hoop 2 at the upper end of the cylinder body 1, a plurality of first sampling connectors 3.1 are arranged at the top of the transparent cover 3, the first sampling connectors 3.1 are respectively and correspondingly connected with a first air inlet connector 4.1 and a first air outlet connector 4.2 of the circulating air pump box 4 through a first air conveying hose 6 and a first return hose 7, a second air inlet connector 4.3 and a second air outlet connector 4.4 of the circulating air pump box 4 are respectively and correspondingly connected with a second sampling connector 5.1 on the air sampling bag 5 through a second air conveying hose 8 and a second return hose 9, and a control valve 10 is further arranged on the second air conveying hose 8 and the second return hose 9.
The sealing hoop 2 comprises an upper ring body 2.1 and a lower ring body 2.2, a sealing ring 2.3 is clamped between the upper ring body and the lower ring body, and the inner diameter surface of the sealing ring 2.3 is tightly matched with the outer wall of the cylinder body 1. The upper ring body 2.1 and the lower ring body 2.2 are connected with each other through connecting pieces penetrating through the upper ring body 2.1, and the connecting pieces are riveting pieces or screw pieces.
An elastic sealing layer 3.2 is arranged on the lower end cover opening of the transparent cover 3.
The cylinder 1 is a plastic pipe body, and the lower end of the cylinder 1 is provided with a sharp part which is convenient to be pressed into the soil.
The first sampling nipple 3.1 of the transparent cover 3 is provided with a nipple valve. The second sampling tap 5.1 of the gas sampling bag 5 is also provided with a tap valve.
As shown in fig. 1, the components are connected with each other, the cylinder 1 is pressed into the soil of the point to be sampled, the transparent cover 3 is covered, and after the installation, the air pump in the circulating air pump box 4 is started, so that the air circularly flows in the sampling space formed by the cylinder 1 and the transparent cover 3. When sampling is needed, the gas sampling bag 5 is connected to the second gas transmission hose 8 and the second reflux hose 9, the joint valves on the control valve 10 and the second sampling joint 5.1 are opened, so that the gas sampling bag 5 is also added into the sampling space for gas circulation, after a period of circulation, sampling gas is obtained in the gas sampling bag 5, the joint valves on the control valve 10 and the second sampling joint 5.1 are closed, and the second gas transmission hose 8 and the second reflux hose 9 are disconnected, so that the gas sampling bag 5 with sampling gas is obtained.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (5)
1. The utility model provides a portable open-air gaseous isobaric sampler, includes barrel, sealed hoop, transparent shroud, circulation air pump case and gas sampling bag, its characterized in that: the sealing hoop is arranged at the upper end part of the cylinder body and is close to the upper port, the transparent cover cap can be covered on the sealing hoop at the upper end of the cylinder body, a plurality of first sampling connectors are arranged at the top of the transparent cover cap, the first sampling connectors are respectively connected with a first air inlet connector and a first air outlet connector of the circulating air pump box through a first air transmission hose and a first backflow hose in a corresponding mode, a second air inlet connector and a second air outlet connector of the circulating air pump box are respectively connected with a second sampling connector on the air sampling bag through a second air transmission hose and a second backflow hose in a corresponding mode, and a control valve is further arranged on the second air transmission hose and the second backflow hose.
2. The portable field gas isobaric sampler of claim 1, wherein: the sealing hoop comprises an upper ring body and a lower ring body, a sealing ring is clamped between the upper ring body and the lower ring body, and the inner diameter surface of the sealing ring is tightly matched with the cylinder body.
3. The portable field gas isobaric sampler of claim 2, wherein: the upper ring body and the lower ring body are connected with each other through a connecting piece, and the connecting piece is a riveting piece or a screw-connection piece.
4. The portable field gas isobaric sampler of claim 1, wherein: an elastic sealing layer is arranged on the lower end cover opening of the transparent cover.
5. The portable field gas isobaric sampler of claim 1, wherein: the barrel is a plastic pipe body, and the lower end of the barrel is provided with a sharp part which is convenient to be pressed into the soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321570805.0U CN219996654U (en) | 2023-06-20 | 2023-06-20 | Portable field gas isobaric sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321570805.0U CN219996654U (en) | 2023-06-20 | 2023-06-20 | Portable field gas isobaric sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219996654U true CN219996654U (en) | 2023-11-10 |
Family
ID=88619947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321570805.0U Active CN219996654U (en) | 2023-06-20 | 2023-06-20 | Portable field gas isobaric sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219996654U (en) |
-
2023
- 2023-06-20 CN CN202321570805.0U patent/CN219996654U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |