CN205067173U - Nonirrigated farmland gas collection ware - Google Patents
Nonirrigated farmland gas collection ware Download PDFInfo
- Publication number
- CN205067173U CN205067173U CN201520736165.5U CN201520736165U CN205067173U CN 205067173 U CN205067173 U CN 205067173U CN 201520736165 U CN201520736165 U CN 201520736165U CN 205067173 U CN205067173 U CN 205067173U
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- air container
- gas
- air
- nonirrigated farmland
- gas collector
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Abstract
The utility model relates to a gas collection ware. A nonirrigated farmland gas collection ware, includes bottom openings's gas storage container, gas storage container is equipped with the aspirating hole, gas storage container still is equipped with the atmospheric pressure that makes in the gas storage container and keeps relative with the outer atmospheric pressure of gas storage container and can prevent that the gas storage container outside air from getting into the muddy formula pressure equaliser that prevents in the gas storage container. The utility model provides a nonirrigated farmland gas collection ware of the gas of release in the soil can be collected, the problem that present gas sampling ware can not collected the gas of release in the soil has in succession been solved.
Description
Technical field
The utility model relates to gas collector, particularly relates to a kind of nonirrigated farmland gas collector.
Background technology
In greenhouse gases releasing research process, usually need to gather farmland or/and the gas of a kind of release in timbered soil, then carry out analyzing to the gaseous sample gathered and study.General, collection dryland soil being discharged to gas needs in the soil of sample area by being pre-installed in by gas collector, then the gas discharged in soil is collected, then carry out corresponding test with the portion gas in syringe extracting gases gatherer as sample at times.China Patent No. be 2012200190619, Authorization Notice No. is CN202606175U, name is called in the patent document of " gas piston gatherer " and discloses a kind of existing gas collector.This gas collector can only be used for the gas gathered to shift, and is not suitable for carrying out continuous several times collection to the gas discharged in soil.
Utility model content
The utility model provides a kind of gatherer can collecting the gas discharged in dryland soil, and solving existing gas sampler continuous several times can not carry out the problem of high-purity collection to the gas that soil discharges.
Above technical matters is solved by following technical proposal: a kind of nonirrigated farmland gas collector, comprise the air container of bottom end opening, described air container is provided with aspirating hole, and described air container is also provided with and makes the air pressure in air container keep equal with the air pressure outside air container and can prevent the air of air container outside from entering anti-mixing pressure equaliser in air container.During use, the lower end of gas collector to be inserted in the soil of sample area and airtight live aspirating hole, gas collector and ground is made to surround gas collection chamber, gas in soil constantly discharges and enters this gas collection chamber, after a period of time, by syringe needle through aspirating hole by the gas extraction of portion gas collecting chamber in syringe.In above process, the continuous release of soil gas can cause the air pressure in air container to raise, the air pressure in air container can be caused when gas in air container is taken away by needle tubing as sample to decline, now under the effect of anti-mixing pressure equaliser, the gas accounting that soil when the gas in air container can be made to remain in a basic balance with external pressure and to sample in air container is discharged is large, thus making the purity of got gaseous sample good, authenticity is high; The sample of the sampling gained of the different batches of the same area can more real reacting gas rate of release.
As preferably, described anti-mixing pressure equaliser comprises the tracheae in the space, inside and outside being communicated with described air container, and the volume of described tracheae is greater than the volume of the gas that unitary sampling extracts from described air container.Structure is simple, but anti-mixed effect is poor, especially the longer and inside and outside differential pressure of container of acquisition time hour, can not effectively prevent the gas of air container inside and outside from producing mixing in the mode of diffusion, thus make the authenticity of sample poor (also namely the distortion of sample is larger).
As preferably, the length of described tracheae is more than 15 centimetres.Anti-mixed effect can be provided to improve the authenticity of sample.
As preferably, described tracheae extends along the inside surface of the roof of described air container.
Preferred as another, described anti-mixing pressure equaliser comprises the first communicating pipe and second communicating pipe in the space, inside and outside being communicated with described air container, the inner of described first communicating pipe is connected with the first flexible air-bag that the inside towards described air container is launched, the volume of the gas extracted from described air container when the volume of described first flexible air-bag is more than or equal to unitary sampling; Be provided with the second flexible air-bag being provided with the external expansion towards described air container towards the retaining valve of air container outside unlatching or the outer end of described second communicating pipe described second communicating pipe.When internal gas is higher than external pressure, make inside and outside air pressure balance by opening of the unlatching of retaining valve or the second flexible air-bag, now according to the volume that may design the second flexible air-bag in sampling process from air container from the gas flow of discharging, make it possible to the balance that can maintain air pressure in whole collection process; When air pressure inside is lower than opening then by the first air bag during external pressure the balance maintaining air pressure.Anti-mixed effective.
As preferably, described air container comprise upper and lower two ends all opening cylindrical base and seal the lid be removably connected on described base, described aspirating hole is arranged at described top cover.Convenience when installing and using is good.
As preferably, described aspirating hole is connected with can by the sealing-plug of punctures of bleeding.Can avoid opening aspirating hole and the inside and outside gas and vapor permeation phenomenon that causes produces, the authenticity of sample can be improved.
As preferably, described base is connected with the buckle be pressed on by lid on base.Fixing reliable, and convenient when closing up and open.
As preferably, described base is provided with scale.Can know that air container inserts the degree of depth in soil intuitively.
The utility model has following advantage, easy to use, the consistance of the gaseous sample collected and authenticity good.
Accompanying drawing explanation
Fig. 1 is the split view of the utility model embodiment one.
Fig. 2 is the schematic diagram at a visual angle of lid in embodiment one.
Fig. 3 is the schematic diagram at another visual angle of lid in embodiment one.
Fig. 4 is the schematic diagram of the lid in embodiment two.
In figure: air container 1, base 11, lid 12, aspirating hole 13, sealing-plug 14, buckle 2, anti-mixing pressure equaliser 3, communicating pipe 33, first tracheae 31, second communicating pipe 32, first flexible air-bag 34, second flexible air-bag 35, soil 5.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
Embodiment one, see Fig. 1, a kind of nonirrigated farmland gas collector, comprises the air container 1 of bottom end opening.Air container 1 comprises base 11 and seals the lid 12 be removably connected on described base.Base 11 is the cylindrical shape of upper and lower two ends all opening.The outer peripheral face of base 11 is provided with buckle 2.Buckle 2 has 4.4 buckles 2 distribute along the circumference of base 11.Base 11 is also provided with scale (not drawing in figure).The lower surface of lid 12 is provided with the O-ring seal (not drawing in figure) be connected and sealed for same base 11.Lid 12 is provided with aspirating hole 13.Aspirating hole 13 is arranged on the center of lid 12.Aspirating hole 13 is removably sealedly connected with sealing-plug 14.Sealing-plug 14 is can be made (as rubber) by the material of punctures of bleeding.Lid 12 is also provided with anti-mixing pressure equaliser 3.Anti-mixing pressure equaliser 3 is tracheae 31.The volume of the gas that the volume of tracheae 31 extracts when being greater than unitary sampling from air container 1.
See Fig. 2, the length of tracheae 31 is more than 15 centimetres.Tracheae 31 along lid 12 inside surface also namely the inside surface of the roof of air container extend.
See Fig. 3, tracheae 31 is communicated with space, inside and outside and the through lid 12 of air container.
See Fig. 1 to Fig. 3, during use, the lower end of base 11 is inserted in the soil of sample area, lid 12 is covered the upper end of base 11, rotate buckle 2 and make snap hook catch lid 12 thus lid 12 is compressed to make lid keep linking together with base seal on the pedestal 11.Air container 1 and ground surround gas collection chamber, gas in soil can constantly discharge and enter in air container 1, the gas that discharges gas when causing air container 1 internal gas pressure to raise then in air container 1 clamp-ons even discharge tracheae 31.After reaching the time that can sample, syringe needle is inserted in sealing-plug 14 to enter in air container 1 and then gas suction syringe is taken away.Bleed when causing air pressure in air container 1 to decline, extraneous gas enters tracheae 31 and makes external and internal pressure reach balance, the volume of gas now owing to extracting from air container 1 when the volume of tracheae 31 is greater than unitary sampling, can not enter in air container so extraneous gas rests in tracheae.
Embodiment two, the difference with embodiment one is:
See Fig. 4, anti-mixing pressure equaliser 3 comprised for the first communicating pipe 33 and the second communicating pipe 32.Be communicated with space, inside and outside and the through lid 12 of air container the first communicating pipe 33.The inner of first communicating pipe 33 is connected with the first flexible air-bag 34 that the inside towards air container is launched.The volume of the gas that the volume of the first flexible air-bag 34 extracts when being more than or equal to unitary sampling from air container.Be communicated with space, inside and outside and the through lid 12 of air container the first communicating pipe 33.The outer end of the second communicating pipe 32 is connected with the second flexible air-bag 35 that the inside towards air container is launched.
In use procedure, when air pressure inside is higher than external pressure, the second flexible air-bag 35 is realized internal and external pressure balance by opening.When air pressure inside is lower than external pressure, the first flexible air-bag 34 is realized internal and external pressure balance by opening.
Embodiment three, this embodiment does not provide structural drawing.Difference with embodiment two is: carry out alternative second flexible air-bag with arranging the retaining valve opened towards air container outside the second communicating pipe.The anti-mixed effect of the program does not have embodiment two good, but is better than embodiment one.
Claims (9)
1. a nonirrigated farmland gas collector, comprise the air container of bottom end opening, it is characterized in that, described air container is provided with aspirating hole, and described air container is also provided with and makes the air pressure in air container keep equal with the air pressure outside air container and can prevent the air of air container outside from entering anti-mixing pressure equaliser in air container.
2. a kind of nonirrigated farmland according to claim 1 gas collector, it is characterized in that, described anti-mixing pressure equaliser comprises the tracheae in the space, inside and outside being communicated with described air container, the volume of the gas extracted from described air container when the volume of described tracheae is greater than unitary sampling.
3. a kind of nonirrigated farmland according to claim 2 gas collector, is characterized in that, the length of described tracheae is more than 15 centimetres.
4. a kind of nonirrigated farmland gas collector according to claim 3 or 2, is characterized in that, described tracheae extends along the inside surface of the roof of described air container.
5. a kind of nonirrigated farmland according to claim 1 gas collector, it is characterized in that, described anti-mixing pressure equaliser comprises the first communicating pipe and second communicating pipe in the space, inside and outside being communicated with described air container, the inner of described first communicating pipe is connected with the first flexible air-bag that the inside towards described air container is launched, the volume of the gas extracted from described air container when the volume of described first flexible air-bag is more than or equal to unitary sampling; Be provided with the second flexible air-bag being provided with the external expansion towards described air container towards the retaining valve of air container outside unlatching or the outer end of described second communicating pipe described second communicating pipe.
6. a kind of nonirrigated farmland gas collector according to claim 1 or 2 or 3 or 5, it is characterized in that, described air container comprise upper and lower two ends all opening cylindrical base and seal the lid that is removably connected on described base, described aspirating hole is arranged at described top cover.
7. a kind of nonirrigated farmland according to claim 6 gas collector, is characterized in that, described aspirating hole is connected with can by the sealing-plug of punctures of bleeding.
8. a kind of nonirrigated farmland according to claim 6 gas collector, is characterized in that, described base is connected with the buckle be pressed on by lid on base.
9. a kind of nonirrigated farmland according to claim 6 gas collector, it is characterized in that, described base is provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736165.5U CN205067173U (en) | 2015-09-21 | 2015-09-21 | Nonirrigated farmland gas collection ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736165.5U CN205067173U (en) | 2015-09-21 | 2015-09-21 | Nonirrigated farmland gas collection ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205067173U true CN205067173U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520736165.5U Expired - Fee Related CN205067173U (en) | 2015-09-21 | 2015-09-21 | Nonirrigated farmland gas collection ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205067173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053155A (en) * | 2016-07-25 | 2016-10-26 | 河南省农业科学院植物营养与资源环境研究所 | Small static chamber for farmland greenhouse gas monitoring and sampling |
-
2015
- 2015-09-21 CN CN201520736165.5U patent/CN205067173U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053155A (en) * | 2016-07-25 | 2016-10-26 | 河南省农业科学院植物营养与资源环境研究所 | Small static chamber for farmland greenhouse gas monitoring and sampling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20160921 |