CN210269313U - Soil greenhouse gas collection system - Google Patents
Soil greenhouse gas collection system Download PDFInfo
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- CN210269313U CN210269313U CN201921265809.1U CN201921265809U CN210269313U CN 210269313 U CN210269313 U CN 210269313U CN 201921265809 U CN201921265809 U CN 201921265809U CN 210269313 U CN210269313 U CN 210269313U
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- gas collection
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- collection box
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- 239000002689 soil Substances 0.000 title claims abstract description 29
- 239000005431 greenhouse gas Substances 0.000 title claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 85
- 238000007789 sealing Methods 0.000 claims description 22
- 238000010030 laminating Methods 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a soil greenhouse gas collecting device, which belongs to the technical field of gas sampling devices and comprises a base box and a gas collecting box, wherein the base box comprises a bottom cover and a cylinder body, the upper end and the lower end of the cylinder body are both opened, the bottom cover is fixed at the bottom of the cylinder body and seals the bottom of the cylinder body, the side wall of the cylinder body is provided with a plurality of gas holes, the cylinder body is formed by sequentially stacking and detachably connecting a plurality of cylinders, and the outer wall of each cylinder is provided with a scale from bottom to top; the gas collection box is a cylinder with a sealed upper end and an open lower end, the lower end of the gas collection box is detachably and fixedly connected with the upper end of the cylinder, a gas collection hole and a pressure control hole are formed in the upper end of the gas collection box, an electromagnetic valve is arranged in the gas collection hole, the gas collection hole is connected with a collection bag, a balance valve is installed in the pressure control hole, a mixing fan is installed in the gas collection box, the height of the base box is changed by reducing or increasing the number of cylinders, and the gas collection box is suitable for gas collection of different soil depths.
Description
Technical Field
The utility model relates to a gaseous sampling device technical field, especially a soil greenhouse gas collection system.
Background
The research on the soil greenhouse gas is the hot spot of the current research on the agricultural ecological effect. The reduction of agricultural greenhouse gas emission plays an important role in controlling global climate change.
At present, in the process of researching the emission of the greenhouse gases in the soil, scientific and technological personnel often simulate the emission test of the greenhouse gases in the soil due to the fact that an outdoor in-situ test has great implementation difficulty, long time and large consumption of resources such as manpower.
At present, the method for analyzing greenhouse gases at home and abroad mainly comprises a static box-gas chromatography detection method and a field gas analyzer in-situ observation method. Wherein, the device for collecting greenhouse gases mostly adopts a static box. The basic structure of the static box is a box body and a base, but the static box is diversified due to the influence of conditions such as material, cost, transportation, effectiveness and the like, and most of the gas collection boxes are complex in structure and poor in flexibility, so that the static box cannot be simultaneously suitable for greenhouse and field tests.
The soil greenhouse gas collecting device with the publication number of CN206208614U, which is suitable for greenhouse and field experiments, is a gas collecting device previously applied by the institute, and the device has a simple structure, but the depth of the base embedded in the soil is fixed when the device is used, and the device cannot collect gas in different soil depths.
SUMMERY OF THE UTILITY MODEL
To the problem, a soil greenhouse gas collecting device is provided, which is improved on the basis of the original gas collecting device, and solves the problem that the gas with different soil depths cannot be collected.
In order to achieve the above purpose, the utility model adopts the technical proposal that: a soil greenhouse gas collecting device comprises a base box and a gas collecting box, wherein the base box comprises a bottom cover and a barrel body, the upper end and the lower end of the barrel body are both provided with openings, the bottom cover is fixed at the bottom of the barrel body and seals the bottom of the barrel body, a plurality of air holes are formed in the side wall of the barrel body, the barrel body is formed by sequentially stacking and detachably connecting a plurality of barrels, and the outer wall of each barrel is provided with scales from bottom to top; the gas collection box is in a cylindrical shape with a sealed upper end and an open lower end, the lower end of the gas collection box is detachably and fixedly connected with the upper end of the barrel, a gas collection hole and a pressure control hole are formed in the upper end of the gas collection box, an electromagnetic valve is arranged in the gas collection hole, the gas collection hole is connected with a collection bag, a balance valve is installed in the pressure control hole, and a mixing fan is installed in the gas collection box.
Furthermore, the upper end of each cylinder is provided with an external thread, the lower end of each cylinder is provided with an internal thread, and every two adjacent cylinders are connected in a matched mode through the external thread and the internal thread. Through external screw thread and interior screw-thread fit, a plurality of drums superpose each other, and it is good to connect the leakproofness, easy dismounting moreover.
Furthermore, the lower port of the gas collection box and the upper port of the cylinder are respectively provided with a sealing gasket. The joint of the gas collection box and the barrel is further sealed through the sealing gasket, so that external gas is prevented from entering the gas collection box, and gas leakage and gas outlet in the gas collection box are avoided by colleagues.
Furthermore, the gas collection box is connected with the barrel through a sealing rubber ring, the sealing rubber ring is provided with a fracture, and the fracture is provided with a ring buckle for adjusting the tightness of the sealing rubber ring. The sealing rubber ring can firmly connect the gas collection box and the cylinder body and can seal the joint of the gas collection box and the cylinder body.
Further, the gas collecting box further comprises a control key, the control key is fixed on the outer wall of the gas collecting box, and the control key is electrically connected with the mixing fan and the electromagnetic valve respectively. The mixing fan and the electromagnetic valve can be respectively controlled to be opened and closed through the keys.
Further, a filter screen is installed in the air hole. The filter screen can prevent soil from entering the base box, and greenhouse gases can smoothly enter the base box through the filter screen.
Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses a gas acquisition device's base case includes bottom and barrel, and the barrel is stacked gradually by a plurality of drums and can be dismantled the connection and form, as required, can reduce or increase the quantity of drum to change the height of base case, adapt to the gas acquisition of different soil depths. The outer wall of drum is equipped with the scale, through the degree of depth that observation base case that the scale can be convenient got into soil, simple to operate.
2. The utility model discloses a gas collecting device is equipped with hybrid fan, and hybrid fan can mix the gas in the gas collecting box for gas in the soil gets into the base case more easily, and rises to get into the gas collecting box in, collects the bag and gathers the gas that meets the requirements more easily.
Drawings
FIG. 1 is a soil greenhouse gas collection system according to the present invention;
the device comprises a base box, a bottom cover, a barrel body, a cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the soil greenhouse gas collecting device comprises a base box 1 and a gas collecting box 2, wherein the base box 1 comprises a bottom cover 11 and a cylinder 12, the upper end and the lower end of the cylinder 12 are both open, the bottom cover 11 is fixed at the bottom of the cylinder 12 and seals the bottom of the cylinder 12, the cylinder 12 is formed by sequentially stacking and detachably connecting a plurality of cylinders 121, the outer walls of the cylinders 121 are provided with scales from bottom to top, the side wall of each cylinder 121 is provided with two air holes 13 on one circumference, the air holes 13 are arranged at the lower ends of the side walls of the cylinders 121, and filter screens are installed in the air holes 13. The gas collection box 2 is in a cylinder 121 shape with a sealed upper end and an opened lower end, the lower end of the gas collection box 2 is detachably and fixedly connected with the upper end of the cylinder 12, a gas collection hole 21 and a pressure control hole 22 are formed in the upper end of the gas collection box 2, an electromagnetic valve 23 is arranged in the gas collection hole 21, the gas collection hole 21 is connected with a collection bag 24, and a balance valve 25 is installed in the pressure control hole 22. A mixing fan 26 is installed in the gas collection box 2, the mixing fan 26 is a common ceiling fan, the mixing fan 26 is fixed on the inner wall of the gas collection box 2 through a bracket, the mixing fan 26 is horizontally arranged, and the blowing direction of the mixing fan 26 faces the collection bag 24. When the gas collecting box is used, the base box 1 is buried in soil, the gas collecting box 2 is arranged above the soil, gas in the soil enters the base box 1 from the gas hole 13, and the gas in the gas collecting box 2 can be fully and uniformly mixed through the mixing fan 26. When gathering gas, open solenoid valve 23 and hybrid fan 26, hybrid fan 26 during operation can blow the gas in the gas acquisition box 2 to gathering the bag for the gas in the gas acquisition box 2 gets into gathers the bag, then closes solenoid valve 23 and hybrid fan 26, will gather the bag from the outside and take off from gas acquisition hole 21 and accomplish gaseous collection promptly.
The bottom cover 11 is bowl-shaped, the upper end of the bottom cover 11 and the upper end of the cylinder 121 are respectively provided with an external thread 122, the lower end of the cylinder 121 is provided with an internal thread 123, and two adjacent cylinders 121 are mutually connected in a stacked mode through the matching of the external thread 122 and the internal thread 123. The bottom cap 11 is fixed to the barrel 12 by the external thread 122 and the internal thread 123 of the lowermost one of the cylinders 121. Through external screw thread 122 and internal thread 123 cooperation connection, it is good to connect the leakproofness, easy dismounting moreover.
The lower port of the gas collection box 2 and the upper port of the cylinder 12 are respectively provided with a sealing gasket 27. The gas collection box 2 is fixedly connected with the cylinder body 12 through the sealing rubber ring 4, the sealing rubber ring 4 is sleeved on the outer side of the joint of the gas collection box 2 and the cylinder body 12, the inner surface of the sealing rubber ring 4 is provided with a thread matched with the external thread 122 at the upper end of the cylinder 121, the sealing rubber ring 4 is provided with a fracture, and the fracture is provided with a ring buckle 41 used for adjusting the tightness of the sealing rubber ring 4. The ring buckle 41 comprises two connecting pieces and an adjusting bolt, the two connecting pieces are respectively fixed at two ends of the sealing rubber ring 4, threaded holes are formed in the connecting pieces, the bolt is respectively in threaded connection with the threaded holes in the two connecting pieces, the ring buckle 41 connects the sealing rubber ring 4 into a ring, and the tightness of the sealing rubber ring 4 can be adjusted by rotating the bolt. During the use, earlier with the lower extreme of gas collection box 2 and the upper end butt joint of barrel 12 together, sealed pad 27 pastes closely each other, then overlaps joint department with joint sealing ring 4, joint sealing ring 4's screw thread and the external screw thread 122 block of the upper end of drum 121, then adjusts latch closure 41 for joint sealing ring 4 firmly connects gas collection box 2 and barrel 12.
As a preferred, the utility model discloses a gas collecting device still includes control button 3, and control button 3 is fixed in the outer wall of gas acquisition case 2, and control button 3 electricity respectively connects hybrid fan 26 and solenoid valve 23, can control opening and closing of hybrid fan 26 and solenoid valve 23 respectively through the button.
The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.
Claims (6)
1. The utility model provides a soil greenhouse gas collection system which characterized in that: comprises that
The base box comprises a bottom cover and a barrel body, the upper end and the lower end of the barrel body are both provided with openings, the bottom cover is fixed at the bottom of the barrel body and seals the bottom of the barrel body, the side wall of the barrel body is provided with a plurality of air holes, the barrel body is formed by sequentially laminating and detachably connecting a plurality of barrels, and the outer wall of each barrel is provided with scales from bottom to top; and
the gas collection box is in a cylindrical shape with the upper end sealed and the lower end opened, the lower end of the gas collection box is detachably and fixedly connected with the upper end of the barrel, a gas collection hole and a pressure control hole are formed in the upper end of the gas collection box, an electromagnetic valve is arranged in the gas collection hole, the gas collection hole is connected with a collection bag, a balance valve is installed in the pressure control hole, and a mixing fan is installed in the gas collection box.
2. A soil greenhouse gas collection apparatus as claimed in claim 1, wherein: the upper end of each cylinder is provided with an external thread, the lower end of each cylinder is provided with an internal thread, and every two adjacent cylinders are connected in a matched mode through the external thread and the internal thread.
3. A soil greenhouse gas collection apparatus as claimed in claim 1, wherein: and the lower port of the gas collection box and the upper port of the cylinder are respectively provided with a sealing gasket.
4. A soil greenhouse gas collection apparatus as claimed in claim 1, wherein: the gas collection box is connected with the barrel through a sealing rubber ring, the sealing rubber ring is provided with a fracture, and the fracture is provided with a buckle for adjusting the tightness of the sealing rubber ring.
5. A soil greenhouse gas collection apparatus as claimed in claim 1, wherein: the gas collection box is characterized by further comprising a control key, wherein the control key is fixed on the outer wall of the gas collection box, and the control key is electrically connected with the mixing fan and the electromagnetic valve respectively.
6. A soil greenhouse gas collection apparatus as claimed in claim 2, wherein: and a filter screen is arranged in the air hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921265809.1U CN210269313U (en) | 2019-08-06 | 2019-08-06 | Soil greenhouse gas collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921265809.1U CN210269313U (en) | 2019-08-06 | 2019-08-06 | Soil greenhouse gas collection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210269313U true CN210269313U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921265809.1U Expired - Fee Related CN210269313U (en) | 2019-08-06 | 2019-08-06 | Soil greenhouse gas collection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210269313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358426A (en) * | 2021-06-11 | 2021-09-07 | 重庆师范大学 | Acquisition device and method for measuring emission contribution of endogenous greenhouse gases in shallow water body |
-
2019
- 2019-08-06 CN CN201921265809.1U patent/CN210269313U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358426A (en) * | 2021-06-11 | 2021-09-07 | 重庆师范大学 | Acquisition device and method for measuring emission contribution of endogenous greenhouse gases in shallow water body |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 |
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| CF01 | Termination of patent right due to non-payment of annual fee |