CN106248440A - Farmland greenhouse gas monitoring sampling apparatus - Google Patents
Farmland greenhouse gas monitoring sampling apparatus Download PDFInfo
- Publication number
- CN106248440A CN106248440A CN201610587976.2A CN201610587976A CN106248440A CN 106248440 A CN106248440 A CN 106248440A CN 201610587976 A CN201610587976 A CN 201610587976A CN 106248440 A CN106248440 A CN 106248440A
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- Prior art keywords
- casing
- greenhouse gas
- sampling apparatus
- base
- monitoring sampling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 33
- 239000005431 greenhouse gas Substances 0.000 title claims abstract description 32
- 238000005070 sampling Methods 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000004677 Nylon Substances 0.000 claims abstract description 5
- 229920001778 nylon Polymers 0.000 claims abstract description 5
- 230000006978 adaptation Effects 0.000 claims abstract description 3
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 238000009423 ventilation Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 description 20
- 239000007789 gas Substances 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- 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
- G01N1/2294—Sampling soil gases or the like
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Soil Sciences (AREA)
- 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 belongs to agricultural, forestry, eco-environment technology field, it is specifically related to a kind of farmland greenhouse gas monitoring sampling apparatus, casing and base including shape adaptation, casing is provided with aspirating hole, aspirating hole is provided with rubber closure, described base is inside and outside double-layer integrally annular mount structure, and corresponding casing is cylindrical-shaped structure；Described base cross section is wedge shape, and bottom is edge of a knife shape；The outer rim of described base is provided with the annular seal groove exceeding base, and the bottom coupling of casing is inlaid in described seal groove；Described base is the base of nylon material.Volume of the present invention is little to be carried, convenient transportation, and monitoring accuracy is high.
Description
Technical field
The invention belongs to agricultural, forestry, eco-environment technology field, be specifically related to a kind of farmland greenhouse gas monitoring sampling
Device, for the synchronous monitoring of terrestrial ecosystems greenhouse gas emission flux.
Background technology
Along with the increase of greenhouse gas emissions, global warming aggravates, and energy-saving and emission-reduction have been obtained for countries in the world
Attention, farmland greenhouse gas discharge be also carried out widely studied.Closed chamber method is because of its strong adaptability, structure and operation letter
Single, with low cost and highly sensitive advantage, is widely used in the synchronization prison of terrestrial ecosystems greenhouse gas emission flux
Survey.
Owing to needing there is contact surface with soil surface when static chamber is sampled, it is typically provided base.Existing static chamber mostly just is
Cube, base mostly also is square.But there is a lot of weak point in square base, such as square base and ground contact surface
More being not easy seals corner angle, the biggest to soil disturbance；Static chamber base material is harder is combined poorly sealed needs with static chamber
Pour water sealing, but be difficult to carry out at hillside fields；Static chamber base and soil contact are square, the most first output big with base
Little similar closed cell, disposes surrounding earthing after base, accordingly, there exist the problems such as the destruction earth's surface situation with crop.
Additionally, presently used static chamber is not of uniform size, it is generally directed to the difference of the ecotype of mensuration and sets not
Same size.Crop high static chamber is the most corresponding high, and crop low static chamber height can suitably reduce.Present domestic static chamber used
Volume be relatively mostly about 3L, the advantage of large volume static chamber is that Sampling Area is big, and accuracy rate is slightly higher, but exists a lot
Weak point, as in case, gas mixing is uneven, the gas concentration easily making extraction is on the low side；Typically wanting according to field experiment
Asking, each process is both needed to a certain amount of repetition, and static chamber quantitative requirement is more, and also needs to static chamber after observation completes
Fetching from farmland, there is the problem carrying inconvenience in the static chamber that volume is relatively big, shape is fixing；Static chamber volume is relatively big, exists
When contacting in ground, contact surface is difficult to seal, the shortcoming that disturbance is bigger.
Summary of the invention
The technical problem to be solved in the present invention overcomes above-mentioned the deficiencies in the prior art exactly, and provides one to carry, transports
Convenient, that monitoring accuracy is high farmland greenhouse gas monitoring sampling apparatus.
For solving above-mentioned technical problem, the technical scheme is that
Design a kind of farmland greenhouse gas monitoring sampling apparatus, including casing and the base of shape adaptation, casing is provided with bleeds
Hole, aspirating hole is provided with rubber closure, and described base is inside and outside double-layer integrally annular mount structure, and corresponding casing is cylindric knot
Structure；Described base cross section is wedge shape, and bottom is edge of a knife shape；The outer rim of described base is provided with the ring packing exceeding base
Groove, the bottom coupling of casing is inlaid in described seal groove；Described base is the base of nylon material.
Preferably, above-mentioned farmland greenhouse gas monitoring sampling apparatus in, the volume size of described casing be 1.10～
1.28 L；Be installed with air equalizing valve on described casing, this air equalizing valve be a diameter of 3 be inserted in casing～
The ventilation duct of 4mm.
Preferably, in above-mentioned farmland greenhouse gas monitoring sampling apparatus, described ventilation duct is vertically provided at casing top,
It is provided with chuck between insertion end and the casing top of ventilation duct, is screwed between outside external part and the casing top of ventilation duct
Connect and have pressure head.
Preferably, in above-mentioned farmland greenhouse gas monitoring sampling apparatus, it is provided with between described pressure head and casing top
Sealing ring.
Preferably, in above-mentioned farmland greenhouse gas monitoring sampling apparatus, described aspirating hole is positioned at casing top, is bleeding
The top in hole is provided with screw socket, and rubber closure is threaded in described screw socket.
Preferably, in above-mentioned farmland greenhouse gas monitoring sampling apparatus, described aspirating hole and casing are that split is fixing even
Connect.
Preferably, in above-mentioned farmland greenhouse gas monitoring sampling apparatus, described aspirating hole external card is contained in casing top,
Its lower end is inserted in casing, and is fixed by nut；Equipped with sealing ring between described aspirating hole outside and casing top.
Preferably, in above-mentioned farmland greenhouse gas monitoring sampling apparatus, described box bottom is provided with projecting slot.
Preferably, in above-mentioned farmland greenhouse gas monitoring sampling apparatus, equipped with handle on described casing.
Preferably, in above-mentioned farmland greenhouse gas monitoring sampling apparatus, the rustless steel case that described casing is formed in one
Body.
The Advantageous Effects of technical solution of the present invention is:
1, this device pedestal is double-layer circular ring frame, is used for being previously inserted earth's surface so that there is a stable physical boundary in mensuration face；
Base material material is nylon, slightly elastic, so that more consolidation when casing inserts, it is not necessary to pour water and can reach preferable
Sealing effectiveness, measures highly beneficial to hillside fields.It addition, base is wedge shape, bottom is edge of a knife shape, it is simple to inserting soil, minimizing is disturbed
Dynamic.Thus, it is favorably improved monitoring accuracy.
2, this device volume is little, the easy mix homogeneously of gas in casing, can avoid extracting gas concentration on the low side；And volume
Little, little to soil disturbance, field in-situ observation is good, is particularly suitable for the mensuration of short rod farmland greenhouse gas emission,
Measurement result accuracy rate is high.Additionally, little being also convenient for of volume is carried, convenient transportation.
3, this device is provided with air equalizing valve i.e. breather, it is ensured that casing internal and external pressure balance, compensate for due to sampling
The intrinsic pressure hypodynamic defect of number of times too much traditional static case；Simultaneously as copper pipe internal diameter is little, test proves what this ventilation duct caused
Internal gas diffusing capacity is minimum, is negligible；Thus ensure the accuracy of monitoring.
4, this device aspirating hole top is provided with screw socket, and rubber closure is contained in screw socket, and rubber closure is replaceable, and changes conveniently,
Compensate for traditional static case due to too much thief hatch gas leak phenomenon of sampling；Can be further assured that monitoring accuracy.Casing is provided with
Handle, carries, convenient transportation；Being Demountable between breather and aspirating hole and casing, it is simple, convenient to install, permissible
Reuse.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail, wherein:
Fig. 1 is the structural representation of farmland greenhouse gas of the present invention monitoring sampling apparatus；
Fig. 2 is the structural representation of the casing shown in Fig. 1；
Fig. 3 is the plan structure schematic diagram of the casing shown in Fig. 2；
Fig. 4 is the structural representation of the base shown in Fig. 1；
Fig. 5 is the plan structure schematic diagram of the base shown in Fig. 4；
Sequence number in figure: 1, casing, 2, projecting slot, 3, ventilation duct, 4, pressure head, 5, O type rubber seal, 6, aspirating hole, 7, nut,
8, O type rubber seal, 9, rubber closure, 10, handle, 11, base, 12, seal groove.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the embodiment of the present invention is carried out the most complete description, aobvious
The most described embodiment is only the present invention schematic part detailed description of the invention, is not limited to the scope of the present invention,
Equivalent variations that any those skilled in the art is made on the premise of without departing from present inventive concept and principle and amendment, all
The scope of protection of the invention should be belonged to.
Embodiment one:
See Fig. 1-5, in figure, farmland greenhouse gas of the present invention monitoring sampling apparatus, it is made up of casing 1 and base 11 two parts,
Wherein base is the footing of static chamber, is a double-deck frame, is used for being previously inserted earth's surface so that there is a stable physics in mensuration face
Border.The outer rim of base is provided with the annular seal groove 12 exceeding base, and this seal groove is located at four limits of box bottom, this seal groove
Internal diameter is slightly larger than the wall thickness with casing, and lower box can mate in this seal groove of insertion.The base material used is nylon, has
Necessarily slightly elastic while rigidity, so that more consolidation when casing inserts, it is not necessary to pour water and can reach preferably to seal
Effect, measures highly beneficial to hillside fields.It addition, static chamber base is wedge shape, bottom is edge of a knife shape, it is simple to insert soil, reduces
Disturbance.
Consistent with base shape, contained casing 1 is stainless steel casing cylindric, integrated, seamless, case
Bottom is provided with projecting slot 2, wraps up heat-preservation cotton when ambient temperature is relatively low.Simultaneously equipped with handle 10 on casing, it is moved easily fortune
Defeated.
Box volume size is 1.16L.Need not set in casing fan owing to box volume is less, but on casing top
The copper pipe of portion's plug-in mounting one root length 10.5cm is as ventilation duct 3 so that case internal and external pressure balance.It is straight that copper pipe contacts with extraneous air
Footpath is 3mm, is 4mm at static chamber interior diameter.This root copper pipe plays the work of the inside and outside atmospheric pressure of suitably equilibrium after repeatedly bleeding
With, and owing to copper pipe internal diameter is little, test proves that the internal gas diffusing capacity caused due to this ventilation duct is minimum, can ignore not
Meter.
It is provided with chuck, between outside external part and the casing top of ventilation duct between insertion end and the casing top of ventilation duct
The connection that is screwed has pressure head 4, is provided with O type rubber seal 5 between pressure head and casing top.Thus realize ventilation duct at case
The fixed installation at body top, and seal tight.This attachment structure, installs simple and convenient.
Aspirating hole 6 is left on case top, and aspirating hole is fixing with casing employing split to be connected, and aspirating hole external card is contained in casing top
Portion, its lower end is inserted in casing, and is fixed by copper nut 7；Equipped with O type rubber between aspirating hole outside and casing top
Glue sealing ring 8, seals tight.Screw socket is left on aspirating hole top, adds rubber closure 9 in screw socket, seals tight and can change, repeatedly
Should change in time after using and have ensured that obturation effect.
When measuring, in advance base is inserted earth's surface, press down 1 cm so that there is a stable physics limit in mensuration face
Boundary, directly bears against casing on base, is sampled by rubber closure with the syringe with three-way valve as required, during sampling first
Open three-way valve and syringe is inserted in static chamber by rubber closure, after repeatedly pull syringe is with gas in mixing case, extract gas out
Body sample, closes three-way valve, extracts syringe.After having sampled, take off case and allow base stay earth's surface, for sampling later.Should
Can accurately fix measuring point with base, retention time dimension is not dynamically affected by spatial diversity.Between case and base
Contact available water seals, it is possible to pasting soft sealing ring in casing, acclive place also can reach preferably to imitate without pouring water
Really.If it is relatively low to meet outdoor temperature, can be in casing outer wrapping heat-preservation cotton to maintain temperature constant in casing.After multiple repairing weld the most more
Changing rubber closure, this rubber closure can be with medical treatment transfusion bottle plug.
Described above to disclosed embodiment, makes those skilled in the art be capable of or uses the present invention.To these
The many places amendment of embodiment is apparent to those skilled in the art, and generic principles defined herein can be
On the premise of spirit or scope without departing from invention, realize in other embodiments.Therefore, the present invention will be not restricted to institute herein
These embodiments of display, and it is to fit to the widest range consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a farmland greenhouse gas monitoring sampling apparatus, including casing and the base of shape adaptation, casing is provided with aspirating hole,
Aspirating hole is provided with rubber closure, it is characterized in that: described base is inside and outside double-layer integrally annular mount structure, and corresponding casing is circle
Column structure；Described base cross section is wedge shape, and bottom is edge of a knife shape；The outer rim of described base is provided with the annular exceeding base
Seal groove, the bottom coupling of casing is inlaid in described seal groove；Described base is the base of nylon material.
Farmland greenhouse gas the most according to claim 1 monitoring sampling apparatus, is characterized in that: the volume size of described casing
It is 1.10～1.28L；Being installed with air equalizing valve on described casing, this air equalizing valve is the diameter being inserted in casing
It it is the ventilation duct of 3～4mm.
Farmland greenhouse gas the most according to claim 2 monitoring sampling apparatus, is characterized in that: described ventilation duct is vertically arranged
At casing top, between insertion end and the casing top of ventilation duct, it is provided with chuck, the outside external part of ventilation duct and casing top
Between the connection that is screwed have pressure head.
Farmland greenhouse gas the most according to claim 3 monitoring sampling apparatus, is characterized in that: described pressure head and casing top
Between sealing ring is installed.
Farmland greenhouse gas the most according to claim 1 monitoring sampling apparatus, is characterized in that: described aspirating hole is positioned at casing
Top, is provided with screw socket on the top of aspirating hole, and rubber closure is threaded in described screw socket.
Farmland greenhouse gas the most according to claim 5 monitoring sampling apparatus, is characterized in that: described aspirating hole with casing is
Split is fixing to be connected.
Farmland greenhouse gas the most according to claim 6 monitoring sampling apparatus, is characterized in that: described aspirating hole external card fills
At casing top, its lower end is inserted in casing, and is fixed by nut；Described aspirating hole is outside and between casing top equipped with
Sealing ring.
Farmland greenhouse gas the most according to claim 1 monitoring sampling apparatus, is characterized in that: described box bottom is provided with convex
Grooving.
Farmland greenhouse gas the most according to claim 1 monitoring sampling apparatus, is characterized in that: equipped with hands on described casing
Handle.
Farmland greenhouse gas the most according to claim 1 monitoring sampling apparatus, is characterized in that: described casing is integrated into
The rustless steel casing of type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610587976.2A CN106248440A (en) | 2016-07-25 | 2016-07-25 | Farmland greenhouse gas monitoring sampling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610587976.2A CN106248440A (en) | 2016-07-25 | 2016-07-25 | Farmland greenhouse gas monitoring sampling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106248440A true CN106248440A (en) | 2016-12-21 |
Family
ID=57603573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610587976.2A Pending CN106248440A (en) | 2016-07-25 | 2016-07-25 | Farmland greenhouse gas monitoring sampling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106248440A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655587A (en) * | 2019-01-28 | 2019-04-19 | 河海大学 | A kind of system of on-line determination localized irrigation Soil Trace Gases |
| CN110286005A (en) * | 2019-07-29 | 2019-09-27 | 山东工业职业学院 | Detection gas sample acquisition device |
| CN111721892A (en) * | 2020-06-29 | 2020-09-29 | 黑龙江省农业科学院耕作栽培研究所 | Farmland greenhouse gas monitoring device |
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| US6463815B1 (en) * | 1999-06-09 | 2002-10-15 | Air Dispersions Ltd | Gas sampling assemblies |
| US20040045376A1 (en) * | 2000-10-11 | 2004-03-11 | Christiaan Van Netten | Personal and environmental air sampling apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655587A (en) * | 2019-01-28 | 2019-04-19 | 河海大学 | A kind of system of on-line determination localized irrigation Soil Trace Gases |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161221 |
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| RJ01 | Rejection of invention patent application after publication |