CN108318607A - A kind of transparent static chamber of temperature controllable and greenhouse gases field in-situ acquisition method - Google Patents
A kind of transparent static chamber of temperature controllable and greenhouse gases field in-situ acquisition method Download PDFInfo
- Publication number
- CN108318607A CN108318607A CN201810097558.4A CN201810097558A CN108318607A CN 108318607 A CN108318607 A CN 108318607A CN 201810097558 A CN201810097558 A CN 201810097558A CN 108318607 A CN108318607 A CN 108318607A
- Authority
- CN
- China
- Prior art keywords
- temperature
- water tank
- babinet
- pipe
- air
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of transparent static chamber of temperature controllable and greenhouse gases field in-situ acquisition methods, sink is bonded and fixed on soil ring, refrigeration water tank is connected with babinet, refrigeration water tank passes through guide rail static housing, water pump is positioned over refrigeration water tank bottom, water inlet pipe is socketed with pump outlet, barometric pipe is communicated by air equalizer opening with babinet, outlet pipe one end is positioned in refrigeration water tank, head cover is Nian Jie with top of the box sealing, it is fixed with inside of top cover at the top of aerial cooler, output end is connect by pump power controller with water pump, highly sensitive temp probe is connected by temperature probe jack with temperature controller, mobile power is directly connected with the input terminal of temperature controller and by fan power supply hole with fan, sampling pipe one end is communicated by thieff hatch with babinet, gas production valve is fixed on sampling pipe upper end.Significant effect, of low cost, simple in structure, portable easy to operate, applied widely, as a result high sensitivity, can effectively control cabinet body temperature and air pressure.
Description
Technical field
The invention belongs to whole world change ecological study fields, are more particularly to a kind of transparent static chamber of temperature controllable,
Also relate to a kind of greenhouse gases in-situ sampling method.It is suitable for terrestrial ecosystems Study on Greenhouse Gas Emissions, passes through
Over the ground --- the direct measurement that greenhouse gases exchange only between gas directly obtains terrestrial ecosystems --- atmospheric greenhouse gas is handed over only
Throw-over rate (NEE, net ecosystem exchange).
Background technology
CO2, CH4, N2O is global three big main greenhouse gases, whole world CO in 20162Concentration has reached 403.3ppm
(1ppm be hundred a ten thousandths) is higher than 400ppm in 2015, for before industrialization horizontal 145% (before 1750)；Methane is dense
Degree has reached new peak, and about 1853ppb (1ppb part per billion) is the 257% of the preceding level of industrialization；Nitrous oxide concentration
It is before industrialization horizontal 122% for 328.9ppb.The variation of atmospheric greenhouse gas concentration, which depends primarily on, participates in carbon nitrogen cycle
Each carbon nitrogen library between carbon nitrogen flux fluctuation, research terrestrial ecosystems greenhouse gases variations of flux be global change research due
One of core content.
Current greenhouse gases flux monitoring method mainly has microclimate Chamber technique and static chamber --- gas chromatography,
Microclimate Chamber technique mainly passes through the three-dimensional velocity and air turbulence of certain height above a certain ecosystem-type of measurement
Speed, direct high frequency is measured gas concentration in air and is changed, and then obtains the net interchange (Net of ecosystem greenhouse gases
Ecosystem Exchange,NEE).This method has response fast, does not destroy vegetation and can reach field continuous monitoring mesh in situ
Mark, but this method is higher to the uniformity and slope requirement of underlying surface, and instrument and equipment is expensive, maintenance cost is high, it is difficult to big
Area is universal.
The basic functional principle of static chamber --- gas chromatography is the closed bottomless box with known volume and floor space
The ground watch glasses that (being made of the material that chemical property is stablized) will measure extracts gas in case, uses gas at regular intervals
Chromatography measures the concentration of wherein object gas, is then changed with time rate according to gas concentration, calculates quilt cover surface
Ground --- the exchange rate of minimum gas between gas.The adaptable strong, structure of this method with it is easy to operate, of low cost and sensitive
It spends the advantages that high therefore is widely used in China typical case terrestrial ecosystems greenhouse gases CO2、CH4And N2The Simultaneous Monitoring of O.
It is air themperature in continuous mode raising middle flask to measure the technical barrier that ecosystem minimum gas exchanges using glass box
Rise quickly, it is difficult to control.And the photosynthesis and respiration for steeply rising not only influence plant of sampling period temperature, and
And moisture content in case is caused to increase (especially for rice and wetlands ecosystems), air pressure increase in case, these can shadow
Ring CO2The measurement result of exchange.Through Chinese patent net and correlative theses retrieved web, the current design of static chamber mostly is all substantially
Static camera bellows (opaque babinet), such as " static chamber for collecting field-crop greenhouse gases ", publication number：
CN206095725U, " a kind of static chamber system of in-situ observation wetland carbon emission ", publication number：CN203572823U.It is static dark
Though case can alleviate the too fast rising of the temperature inside the box to a certain extent；But static camera bellows is only used for measuring exhaling for the ecosystem
Inhale, can not directly measure terrestrial ecosystems NEE, ecosystem NEE can only pass through soil --- the breathing of botanical system is indirect
It estimates and there are large errors.Therefore, currently there is an urgent need for a kind of transparent static chamber of temperature controllable of invention and its greenhouse gases are in situ
The method of sampling is for directly measuring ecosystem NEE.
Invention content
Temperature rise is too fast in babinet when being sampled for current transparent case, the technological difficulties such as air pressure increase, the present invention in case
Purpose be to be the provision of a kind of transparent static chamber of temperature controllable, the device significant effect is of low cost, simple in structure,
It is portable easy to operate, it is easy to spread, it can effectively control cabinet body temperature and air pressure.
Another object of the present invention is to be the provision of a kind of method of field in-situ acquisition greenhouse gases, and this method is suitable
Wide with range, as a result high sensitivity, can meet and directly measure the needs of ecosystem greenhouse gases exchange (NEE) only.
To achieve the goals above, the present invention uses following technical measures：
A kind of transparent static chamber of temperature controllable, it includes pedestal, babinet, head cover, temperature regulating device, gas producing device and gas
Balance pipe is pressed to constitute.It is characterized in that：Soil ring, which is embedded in, to be waited in test sample ground, and sink is bonded and fixed on soil ring, refrigeration water tank
It is connected with babinet；Babinet is positioned in the sink full of tap water；Refrigeration water tank is fixed on the side of babinet by guide rail；Water pump
It is positioned over refrigeration water tank bottom, coolant liquid is directly poured into refrigeration water tank；Water inlet pipe is socketed with pump outlet, and water inlet pipe is another
End is socketed by inlet opening and aerial cooler bottom water inlet；Barometric pipe is communicated by air equalizer opening with babinet；Go out
Water pipe one end is positioned over the top edge of refrigeration water tank, and the outlet pipe other end is discharged muzzle by apopore and aerial cooler top
It connects；Head cover is Nian Jie with top of the box sealing；It is fixed with inside of top cover at the top of aerial cooler；Fan is fixed on aerial cooler
Bottom；Temperature controller is fixed on outside of top cover surface, and output end is connect by pump power controller with water pump；It is highly sensitive
Degree temp probe is connected by temperature probe jack with temperature controller；Mobile power directly with the input terminal of temperature controller
It is connected with fan with by fan power supply hole；Sampling pipe one end is communicated by thieff hatch with babinet；Gas production valve is fixed on sampling
Pipe upper end；Waterproof cover is fixed by aluminium alloy hinge and head cover surface, covers temperature controller, pump power controller and movement
Power supply.
By the technical measures of above-mentioned all parts, a kind of transparent static chamber of temperature controllable is obtained.
The critical component of the static chamber is the air cooling circulatory system, including aerial cooler, refrigeration water tank and water pump.It is logical
The operation for crossing the system solves the problems, such as the too fast rising of the temperature inside the box in current transparent static chamber sampling process.With existing skill
Art is compared, and major advance of the present invention is：Temperature in sampling process in control cabinet body, to avoid bringing by temperature rise
Ecosystem NEE measurement errors；The main distinction of the technical program and the prior art is：The technical program increases sampling box
Air cooling system and temperature control system, to ensure that the accuracy of measurement result.
The soil ring and sink constitute pedestal, and the pvc pipe and thickness that pedestal caliber is 390-410mm are 15-
The PVC board of 17mm bonds composition；Babinet is 4-6mm, caliber 390-410mm, highly having for 590-610mm by wall thickness
Machine glass tube is made；The head cover is 4-6mm by thickness, and the poly (methyl methacrylate) plate of a diameter of 400-420mm is made；Described
Head cover and babinet pass through organic glass glue strong bond.Temperature regulating device is by aerial cooler, and refrigeration water tank, controlling voltage is
The multichannel temperature controller of 12V, input voltage 12V, the fan of a diameter of 140mm, input voltage 12V, water outlet caliber are 5-
The water pump of 7mm, internal diameter 5-7mm, outer diameter are that 7-9mm water inlet pipes and outlet pipe form.The aerial cooler is by caliber
For 7-9mm, wall thickness 0.4-0.6mm, length is that the copper tube of 1.8-2.2m is wound in the cylindricality of a diameter of 140-160mm
Copper dish are made, and the refrigeration water tank caliber is 90-110mm, is highly made of the lucite tube of 140-160mm, freeze
The adiabatic masking foil of water tank surface package and heat barrier foam are to reach heat-insulated purpose.The assembling mode of the temperature regulating device is will be empty
Gas Cooler side is fixed with inside of top cover center, is then fixed fan and aerial cooler lower surface, and keep center pair
Together.Aerial cooler lower end connects water inlet pipe, and upper end connects outlet pipe, and water inlet pipe passes through the aperture on box body wall with outlet pipe
(aperture 8mm) is connect with refrigeration water tank, and refrigeration water tank is fixed by the guide rail installed on the outside of tank wall.Water pump is placed in refrigeration water tank
Bottom, pump outlet are connect with water inlet pipe, and outlet pipe is positioned in refrigeration water tank naturally.Pump power line is exported with temperature controller
End is connected by fast waterproof connector, and fan power supply is connect with temperature controller input terminal by fast waterproof connector.Temperature controller is included
Temp probe is stretched by head cover aperture (aperture 4mm) inside static chamber.The gas producing device internal diameter is 5-7mm, and outer diameter is
The transparent silicon sebific duct and medical three-way valve of 9-11mm is formed by connecting, and gas producing device is stretched by head cover aperture (aperture 10mm) and adopted
Inside sample case.The barometric pipe is 1-3mm by internal diameter, and outer diameter 3-5mm, length is the transparent hair of 90-110mm
Tubule is connect by tank wall aperture (aperture 4mm) with water tank, and barometric pipe one end is placed in inside sampling box, and one end is placed naturally
Below refrigeration water tank liquid level.After each accessory installs, all apertures are smeared glass cement and are sealed.
A kind of greenhouse gases in-situ sampling method, step are：
Step 1: carry the previous day is embedded to sampling site by sampling box pedestal, keep pedestal sink horizontal；
Step 2: sampling box is positioned in pedestal sink when sampling, tap water seal case and bottom are poured into the sink
Seat；
Step 3: coolant liquid (vehicle servant cp1101) of the injection through subzero 18 DEG C freezings 11-13 hours in refrigeration water tank
(freezing point is -25 DEG C)；
Step 4: temperature controller (XH-W3001) is connected 12V mobile powers, real-time temperature in case, i.e. air themperature are measured
(-10–50℃)；
Step 5: temperature controller start-up temperature is set as "+0.1 DEG C of air themperature (- 5-40 DEG C) " (i.e. when on the temperature inside the box
When rising 0.1 DEG C, pump power is connected), stopping temperature being set as "-0.1 DEG C of air themperature (- 5-40 DEG C) " and (works as the temperature inside the box
When less than 0.1 DEG C of air themperature, pump power is cut off)；
Step 6: pump power switch is opened, at this point, when the temperature inside the box is higher than 0.1 DEG C of air themperature, plugman of freezing
Coolant liquid is recycled into air-cooling apparatus (copper tube) and reaches fast cooling purpose by work；When the temperature inside the box is less than air themperature
At 0.1 DEG C, refrigeration water pump is stopped, and low temperature (- 18-0 DEG C) coolant liquid in cooling device flows back into system by water pump negative pressure
In cold water storage cistern, achieve the purpose that stop cooling.
Step 7: acquiring a sample every 5-10 minutes by gas sampling assembly, 30ml samples are acquired every time, are adopted altogether
Collection 4-6 times.
Step 8: after 4-6 gas of acquisition, switch off the pump switch, and deenergization removes static chamber, and coolant liquid is returned
It receives.
Step 9: upper gas chromatograph (Agilent 7890A) carries out greenhouse gas concentration analysis to the sample acquired as early as possible,
The greenhouse gas concentration amount of changing with time is the net interchange (NEE) of greenhouse gases between the ecosystem and air.
Pass through the technical measures of above-mentioned nine steps：
Its committed step is third and fourth, five, six steps solve greenhouse gases field by the implementation of the above committed step
The too fast technical barrier of temperature rise in situ sampling raising middle flask, realizes temperature-controllable in sampling box.Compared with prior art, originally
Technical solution increases temperature cooling step during gas collecting, so as to avoid because the temperature rises to air pressure in case and plant
The photosynthetic influence of object, ensure that the accuracy of ecosystem NEE measurement results.
The present invention has the advantages that compared with prior art：
(1) present invention can effectively control the glass box sampling too fast rising of raising middle flask body temperature, control the temperature in babinet
Precision can reach 0.1 DEG C；
(2) this method of sampling is not damaged to vegetation, directly measures the net interchange of greenhouse gases between the ecosystem and air,
Effectively avoid passing through the error that ecosystem respiration estimates NEE indirectly；
(3) present invention installation is rapid, and easy to operate orderly time saving and energy saving, of low cost, mobility is strong, can multiple spot simultaneously
Observation.
The present invention project of national nature science fund project " conversation in Dongting Lake area soil carbon emission and its to hydrologic regime variation
It is applied in conversation in Dongting Lake area under the support of Response Mechanism ", the experimental results showed that：Compared with traditional sampling case, using this dress
The sampling too fast rising of the temperature inside the box can effectively be controlled by setting；Using traditional sampling case can excessively high estimation ecosystem NEE (about
13.6%).
1 sampling box experiment effect of table compares
Description of the drawings
Fig. 1 is a kind of transparent static chamber structural schematic diagram of temperature controllable.
Fig. 2 is a kind of vertical view of the transparent static chamber head cover of temperature controllable.
Wherein：1- soil ring (PVC), 2- sinks, 3- babinets, 4- refrigeration water tanks (common), 5- water pumps (common),
6- coolant liquids (vehicle servant cp1101), 7- water inlet pipes, 8- barometric pipes, 9- outlet pipes, the inlet openings 10-, 11- air pressures are flat
Weigh hole, 12- apopores, 13- head covers, 14- aerial coolers (copper tube), 15- fans (common), 16- temperature controllers
(XH-W3001), 17- pump powers switch (common), the highly sensitive temp probes of 18- (TP-K01), 19- mobile powers are (general
It is logical), 20- air collecting pipes, 21- gas production valve (common), 22- waterproof covers, 23- thieff hatch, 24- temperature probe jacks, 25- wind
Fan power hole.
Specific implementation mode
Embodiment 1：
According to Fig. 1, Fig. 2 it is found that a kind of transparent static chamber of temperature controllable, by soil ring 1, sink 2, babinet 3, chilled water
Case 4, water pump 5, coolant liquid 6, water inlet pipe 7, barometric pipe 8, outlet pipe 9, inlet opening 10, air equalizer opening 11, apopore 12,
Head cover 13, fan 15, temperature controller 16, pump power controller 17, highly sensitive temp probe 18, moves aerial cooler 14
Dynamic power supply 19, air collecting pipe 20, gas production valve 21, waterproof cover 22, thieff hatch 23, temperature probe jack 24, fan power supply hole 25 form.
It is characterized in that：Soil ring 1, which is embedded in, to be waited in test sample ground, and sink 2 is bonded and fixed on soil ring 1, refrigeration water tank 4 and 3 phase of babinet
Even；Babinet 3 is positioned in the sink 2 full of tap water；Refrigeration water tank 4 is fixed on the side of babinet 3 by guide rail；Water pump 5 is put
It is placed in 4 bottom of refrigeration water tank, coolant liquid 6 is directly poured into refrigeration water tank 4；Water inlet pipe 7 is socketed with 5 water outlet of water pump, water inlet pipe 7
The other end is socketed by inlet opening 10 and 13 bottom water inlet of aerial cooler；Barometric pipe 8 by air equalizer opening 11 with
3 inner air of babinet communicates；9 one end of outlet pipe is positioned over the top edge of refrigeration water tank 4, and 9 other end of outlet pipe passes through apopore
12 are socketed with 14 top water outlet of aerial cooler；Head cover 13 is Nian Jie with 3 top sealing of babinet；14 top of aerial cooler and top
13 inside of lid is fixed；Fan 15 is fixed on the bottom of aerial cooler 14；Temperature controller 16 is fixed on 13 outer surface of head cover,
Its 16 output end of temperature controller is connect by pump power controller 17 with water pump 5；Highly sensitive temp probe 18 passes through temperature
Degree probe insertion 24 is connected with temperature controller 16；Mobile power 19 directly with the input terminal of temperature controller 16 and pass through wind
Fan power hole 25 is connected with fan 15；20 one end of sampling pipe inside thieff hatch 23 and babinet 3 by communicating；Gas production valve 21 is fixed
In 20 upper end of sampling pipe；Waterproof cover 22 is fixed by aluminium alloy hinge and 13 surface of head cover, covers temperature controller 16, water pump electricity
Source controller 17 and mobile power 19.
The soil ring 1 and sink 2 constitute pedestal, and pedestal caliber is 390 or 400 or the pvc pipe and thickness of 410mm are
The PVC board of 15 or 16 or 17mm bonds composition；3 wall thickness of babinet is 4 or 5 or 6mm, and caliber is 390 or 400 or 410mm, is highly
The lucite tube of 590 or 600 or 610mm is made；13 thickness of head cover be 4 or 5 or 6mm, a diameter of 400 or 410 or
The poly (methyl methacrylate) plate of 420mm is made；The head cover 13 and babinet 3 passes through organic glass glue strong bond, aerial cooler
14 calibers are 7 or 8 or 9mm, and wall thickness is 0.4 or 0.5 or 0.6mm, and length is that the copper tube of 1.8 or 2 or 2.2m is wound in diameter
It is made of the cylindricality copper dish of 140 or 150 or 160mm, 4 caliber of refrigeration water tank is 90 or 100 or 110mm, is highly 140
Or the lucite tube of 150 or 160mm is made, the adiabatic masking foil of 4 surface of refrigeration water tank package and heat barrier foam are to reach heat-insulated
Purpose.
The gas producing device internal diameter is 5 or 6 or 7mm, and outer diameter is the transparent silicon sebific duct and Medical tee joint of 9 or 10 or 11mm
Valve is formed by connecting, and gas producing device is stretched by head cover aperture (aperture 10mm) inside sampling box.The barometric pipe is by interior
Diameter is 1 or 2 or 3mm, and outer diameter is 3 or 4 or 5mm, and length is that the transparent capillary of 90 or 100 or 110mm passes through tank wall aperture (hole
Diameter 4mm) it is connect with water tank, barometric pipe one end is placed in inside sampling box, and one end is positioned over refrigeration water tank liquid level or less naturally.
After each accessory installs, all apertures are smeared glass cement and are sealed.
By the above technical step, it is completed a kind of transparent static chamber of temperature controllable.
Embodiment 2：
A kind of greenhouse gases in-situ sampling method, step are：
Step 1: being embedded to the pedestal (soil ring 1 and sink 2) made, length of embedment 20cm in advance in sampling point to be measured；
Step 2: babinet 3 is put into sink 2, tap water will be filled in sink 2；
Step 3: the coolant liquid 6 of chilled mistake is poured into refrigeration water tank 4；
Step 4: mobile power 19 is connected with temperature controller 16 and fan 15；
Step 5: read temperature controller 16 real-time temperature (air themperature -5 or -3 or -1 or 5 or 10 or 20 or 30 or
40 DEG C), and be arranged as required to the startup of temperature controller 16 and stop temperature.Start-up temperature is such as set as " air themperature (- 5
Or -2 or 8 or 16 or 24 or 32 or 40 DEG C)+0.1 DEG C (i.e. when the temperature inside the box is higher than 0.1 DEG C of air themperature, connect water pump electricity
Source), stop temperature and is set as -0.1 DEG C of air themperature (- 5 or -1 or 7 or 15 or 21 or 28 or 32 or 36 or 40 DEG C) (i.e. when in case
When temperature is less than 0.1 DEG C of air themperature, pump power is cut off), temperature-controlled precision at this time is ± 0.1 DEG C；
Step 6: opening the power-supply controller of electric 17 of water pump 5；At this point, when the temperature inside the box higher than air themperature (- 5-40 DEG C,
Any one temperature of this section) 0.1 DEG C when, it is (purple that coolant liquid is recycled into air-cooling apparatus by refrigeration pump working
Copper pipe) reach fast cooling purpose；When (- 5-40 DEG C, any one temperature of this section is equal less than air themperature for the temperature inside the box
Can) 0.1 DEG C when, refrigeration water pump is stopped, the low temperature -18 in cooling device or -14 or -10 or -6 or -3 or 0 DEG C of coolant liquids
It is flowed back into refrigeration water tank by water pump negative pressure, achievees the purpose that stop cooling.
Step 7: opening the gas production valve 21 on 20 top of air collecting pipe, 30ml gaseous samples are acquired rapidly with injector for medical purpose, so
Gas production valve 21 is closed afterwards, then acquires a gaseous sample every 5 minutes.
Step 8: after 5 gases of acquisition, switch off the pump power-supply controller of electric 17, disconnects mobile power 19, removes babinet 3, will
Coolant liquid 6 recycles.
Step 9: upper gas chromatograph (Agilent 7890A) carries out greenhouse gas concentration analysis to the sample acquired as early as possible,
The greenhouse gas concentration amount of changing with time is the net interchange (NEE) of greenhouse gases between the ecosystem and air.
By the above implementation steps, it is difficult to solve the technology that temperature rise is too fast in the in situ sampling raising middle flask of greenhouse gases field
Topic, realizes temperature-controllable in sampling box, avoids because of the influence that the temperature rises to air pressure in case and photosynthesis of plant, ensures
The accuracys of ecosystem NEE measurement results.
Claims (7)
1. a kind of transparent static chamber of temperature controllable, it is by soil ring（1）, sink（2）, babinet（3）, refrigeration water tank（4）, water pump
（5）, coolant liquid（6）, water inlet pipe（7）, barometric pipe（8）, outlet pipe（9）, inlet opening（10）, air equalizer opening（11）, go out
Water hole（12）, head cover（13）, aerial cooler（14）, fan（15）, temperature controller（16）, pump power controller（17）、
Highly sensitive temp probe（18）, mobile power（19）, air collecting pipe（20）, gas production valve（21）, waterproof cover（22）, thieff hatch（23）、
Temperature probe jack（24）, fan power supply hole（25）Composition, it is characterised in that：Pedestal is by soil ring（1）It is formed with sink 2, soil
Earth ring（1）It is embedded in and waits in test sample ground, sink（2）It is bonded and fixed to soil ring（1）On, refrigeration water tank（4）With babinet（3）It is connected,
Babinet（3）It is positioned over the sink full of tap water（2）In, refrigeration water tank（4）It is fixed on babinet by guide rail（3）Side, water
Pump（5）It is positioned over refrigeration water tank（4）Bottom, coolant liquid（6）Directly pour into refrigeration water tank（4）In, water inlet pipe（7）With water pump（5）
Water outlet is socketed, water inlet pipe（7）The other end passes through inlet opening（10）With aerial cooler（13）Bottom water inlet socket, air pressure are flat
Weighing apparatus pipe（8）Pass through air equalizer opening（11）With babinet（3）Inner air communicates, outlet pipe（9）One end is positioned over refrigeration water tank（4）
Top edge, outlet pipe（9）The other end passes through apopore（12）With aerial cooler（14）Top water outlet socket；Head cover（13）
With babinet（3）Top sealing bonding；Aerial cooler（14）Top and head cover（13）Inside is fixed；Fan（15）It is fixed on air
Cooler（14）Bottom, temperature controller（16）It is fixed on head cover（13）Outside, temperature controller（16）Output end passes through water
Pumping source controller（17）With water pump（5）Connection, highly sensitive temp probe（18）Pass through temperature probe jack（24）With temperature
Controller（16）Connection, mobile power（19）Directly and temperature controller（16）Input terminal and pass through fan power supply hole（25）With
Fan（15）Connection, sampling pipe（20）One end passes through thieff hatch（23）With babinet（3）Inside communicates, gas production valve（21）It is fixed on and adopts
Sample pipe（20）Upper end, waterproof cover（22）Pass through aluminium alloy hinge and head cover（13）Surface is fixed.
2. the transparent static chamber of a kind of temperature controllable according to claim 1, it is characterised in that：The soil ring（1）
And sink（2）Constitute pedestal, the PVC board bonding group that the pvc pipe and thickness that pedestal is 390-410mm by caliber are 15-17mm
At.
3. the transparent static chamber of a kind of temperature controllable according to claim 1, it is characterised in that：The babinet（3）Wall
Thickness is 4-6mm, and caliber 390-410mm is highly made of the lucite tube of 590-610mm.
4. the transparent static chamber of a kind of temperature controllable according to claim 1, it is characterised in that：The head cover（13）It is thick
Degree is 4-6mm, and the poly (methyl methacrylate) plate of a diameter of 400-420mm is made；The head cover（13）And babinet（3）Pass through organic glass
Glass glue is bonded.
5. the transparent static chamber of a kind of temperature controllable according to claim 1, it is characterised in that：The aerial cooler
（14）Caliber is 7-9mm, and wall thickness 0.4-0.6mm, length is that the copper tube of 1.8-2.2m is wound in a diameter of 140-
The cylindricality copper dish of 160mm are made.
6. the transparent static chamber of a kind of temperature controllable according to claim 1, it is characterised in that：The refrigeration water tank
（4）Caliber is 90-110mm, is highly made of the lucite tube of 140-160mm, refrigeration water tank（4）The adiabatic tin of surface package
Foil paper and heat barrier foam.
7. a kind of greenhouse gases in-situ sampling method described in claim 1, step are：
A, the previous day is carried by sampling box pedestal embedment sampling site, keeps pedestal sink horizontal；
Sampling box is positioned in pedestal sink when B, sampling, pours into tap water seal case and pedestal in the sink；
C, coolant liquid of the injection through subzero 18 DEG C freezings 11-13 hours in refrigeration water tank；
D, temperature controller is connected into 12V mobile powers, measures real-time temperature in case ,-5-40 DEG C of air themperature；
E, temperature controller start-up temperature is set as-5-40 DEG C+0.1 DEG C of air themperature, stops temperature and is set as air themperature-5
– 40℃-0.1℃；
F, open pump power switch, when the temperature inside the box is higher than 0.1 DEG C of air themperature, refrigeration pump working by coolant liquid recycle into
Enter air-cooling apparatus and reaches cooling；When the temperature inside the box is less than 0.1 DEG C of air themperature, refrigeration water pump is stopped, cooling device
Interior-18-0 DEG C of coolant liquids of low temperature are flowed back by water pump negative pressure in refrigeration water tank, and stopping cooling being reached；
G, a sample was acquired every 5-10 minutes by gas sampling assembly, acquires 30ml samples every time, acquires 4-6 times altogether；
H, after acquiring 4-6 gas, switch off the pump switch, and deenergization removes static chamber, coolant liquid is recycled；
I, gas chromatograph carries out greenhouse gas concentration analysis, the greenhouse gas concentration amount of changing with time on the sample acquired
The net interchange of greenhouse gases between the ecosystem and air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097558.4A CN108318607B (en) | 2018-01-31 | 2018-01-31 | Temperature-controllable transparent static box and greenhouse gas field in-situ acquisition method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097558.4A CN108318607B (en) | 2018-01-31 | 2018-01-31 | Temperature-controllable transparent static box and greenhouse gas field in-situ acquisition method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108318607A true CN108318607A (en) | 2018-07-24 |
| CN108318607B CN108318607B (en) | 2021-03-16 |
Family
ID=62890365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810097558.4A Active CN108318607B (en) | 2018-01-31 | 2018-01-31 | Temperature-controllable transparent static box and greenhouse gas field in-situ acquisition method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108318607B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871883A (en) * | 2018-07-26 | 2018-11-23 | 中国林业科学研究院林业研究所 | A kind of static chamber flux observation device and gas production method |
| CN109490146A (en) * | 2018-12-11 | 2019-03-19 | 中国科学院大气物理研究所 | Land-atmosphere interface gas exchanges flux calibration system and method |
| CN110031270A (en) * | 2019-04-26 | 2019-07-19 | 南京林业大学 | A kind of Soil Trace Gases flux measuring device and method |
| CN111983153A (en) * | 2020-08-31 | 2020-11-24 | 中国科学院地理科学与资源研究所 | System and method for detecting greenhouse gas emission of sediment and water body |
| CN113790933A (en) * | 2021-08-16 | 2021-12-14 | 天津大学 | Temperature-controlled windproof and light-resistant static box and gas in-situ collection method |
| CN117647626A (en) * | 2024-01-25 | 2024-03-05 | 中国科学院南京土壤研究所 | Device and method for synchronously monitoring greenhouse gas flux in field in-situ multi-region mode |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519759A (en) * | 2011-11-28 | 2012-06-27 | 中国科学院亚热带农业生态研究所 | Device for sampling nitrous oxide in paddy field soil |
| CN205157265U (en) * | 2015-11-05 | 2016-04-13 | 青岛明华电子仪器有限公司 | Atmospheric sampling ware constant temperature equipment |
| CN205679443U (en) * | 2016-06-20 | 2016-11-09 | 中国农业科学院草原研究所 | A kind of grassland soil greenhouse gases original-position collecting device |
| CN205861412U (en) * | 2016-08-05 | 2017-01-04 | 福建师范大学 | A kind of static chamber measuring Rhizophora apiculata Blume trunk methane transfer rate |
| CN106840783A (en) * | 2017-03-31 | 2017-06-13 | 华测检测认证集团股份有限公司 | Atmospheric sampling equipment with self-protection function |
| CN107121309A (en) * | 2017-05-16 | 2017-09-01 | 上海创蓝检测技术有限公司 | Condensable particulate matter CPM sample devices |
| CN206638464U (en) * | 2017-03-13 | 2017-11-14 | 环境保护部南京环境科学研究所 | A kind of field vegetation volatilization gas automatic acquisition device |
| CN107421787A (en) * | 2017-08-31 | 2017-12-01 | 北京市环境保护监测中心 | The sampling apparatus and assay method of total particulate in waste gas |
| CN206710422U (en) * | 2016-11-01 | 2017-12-05 | 青岛大学 | A kind of system of continuous on-line determination soil CH_4 uptake flux |
-
2018
- 2018-01-31 CN CN201810097558.4A patent/CN108318607B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519759A (en) * | 2011-11-28 | 2012-06-27 | 中国科学院亚热带农业生态研究所 | Device for sampling nitrous oxide in paddy field soil |
| CN205157265U (en) * | 2015-11-05 | 2016-04-13 | 青岛明华电子仪器有限公司 | Atmospheric sampling ware constant temperature equipment |
| CN205679443U (en) * | 2016-06-20 | 2016-11-09 | 中国农业科学院草原研究所 | A kind of grassland soil greenhouse gases original-position collecting device |
| CN205861412U (en) * | 2016-08-05 | 2017-01-04 | 福建师范大学 | A kind of static chamber measuring Rhizophora apiculata Blume trunk methane transfer rate |
| CN206710422U (en) * | 2016-11-01 | 2017-12-05 | 青岛大学 | A kind of system of continuous on-line determination soil CH_4 uptake flux |
| CN206638464U (en) * | 2017-03-13 | 2017-11-14 | 环境保护部南京环境科学研究所 | A kind of field vegetation volatilization gas automatic acquisition device |
| CN106840783A (en) * | 2017-03-31 | 2017-06-13 | 华测检测认证集团股份有限公司 | Atmospheric sampling equipment with self-protection function |
| CN107121309A (en) * | 2017-05-16 | 2017-09-01 | 上海创蓝检测技术有限公司 | Condensable particulate matter CPM sample devices |
| CN107421787A (en) * | 2017-08-31 | 2017-12-01 | 北京市环境保护监测中心 | The sampling apparatus and assay method of total particulate in waste gas |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871883A (en) * | 2018-07-26 | 2018-11-23 | 中国林业科学研究院林业研究所 | A kind of static chamber flux observation device and gas production method |
| CN109490146A (en) * | 2018-12-11 | 2019-03-19 | 中国科学院大气物理研究所 | Land-atmosphere interface gas exchanges flux calibration system and method |
| CN110031270A (en) * | 2019-04-26 | 2019-07-19 | 南京林业大学 | A kind of Soil Trace Gases flux measuring device and method |
| CN111983153A (en) * | 2020-08-31 | 2020-11-24 | 中国科学院地理科学与资源研究所 | System and method for detecting greenhouse gas emission of sediment and water body |
| CN111983153B (en) * | 2020-08-31 | 2021-08-31 | 中国科学院地理科学与资源研究所 | System and method for detecting greenhouse gas emission of sediment and water body |
| CN113790933A (en) * | 2021-08-16 | 2021-12-14 | 天津大学 | Temperature-controlled windproof and light-resistant static box and gas in-situ collection method |
| CN117647626A (en) * | 2024-01-25 | 2024-03-05 | 中国科学院南京土壤研究所 | Device and method for synchronously monitoring greenhouse gas flux in field in-situ multi-region mode |
| CN117647626B (en) * | 2024-01-25 | 2024-04-26 | 中国科学院南京土壤研究所 | Device and method for synchronously monitoring greenhouse gas flux in field in-situ multi-region mode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108318607B (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108318607A (en) | A kind of transparent static chamber of temperature controllable and greenhouse gases field in-situ acquisition method | |
| CN104267172B (en) | A kind of multifunctional all formula soil body freezing-thawing test system | |
| US9453829B2 (en) | Soil property test device | |
| CN201222060Y (en) | Apparatus for testing eluviation, migration and inversion of foreign material in soil | |
| CN201130143Y (en) | Porous medium material permeability coefficient determinator | |
| CN102426149B (en) | System for soil water and heat coupling test | |
| CN103471953A (en) | Automatic test system and test method for testing surface capillary water absorption of concrete | |
| CN110389100A (en) | Temperature Control Type permeameter and its experimental method | |
| CN110296889A (en) | Pressure chamber and its test method for coarse grain soil large-scale Frozen-thawed cycled triaxial test | |
| CN102230929B (en) | Device and method for testing foaming performance of surfactant under high-temperature and high-pressure conditions | |
| CN103743883B (en) | A kind of apparatus and method of testing unsaturated soil hysteresis loop | |
| CN201673107U (en) | Device for measuring saturated water conductivity of soil by variable hydraulic head method | |
| CN205449758U (en) | Outlet pressure adjustable coal petrography seepage flow experimental system | |
| CN102323303B (en) | Experimental apparatus and method for testing gas-sensitive temperature characteristic of carbon nanotube sensor | |
| CN207423761U (en) | The indoor soil-column experimental provision infiltrated for Dripping simulation | |
| CN102455344B (en) | Method for multi-connected sludge specific resistance measurement device | |
| CN206618662U (en) | Novel experimental simulating test device | |
| CN108226001A (en) | A kind of bicyclic method automatic test device and bicyclic water injection test method | |
| CN208968883U (en) | A kind of environmental monitoring sampling quantitative filling device | |
| CN206557238U (en) | A kind of water quality monitoring automatic sampling apparatus | |
| CN103344354A (en) | In-porous-medium fluid temperature visualization measuring device | |
| CN204594855U (en) | The instrument of tunnel concrete water pressure permeability test under Simulated Water | |
| CN209513685U (en) | The Equivalent Thermal Conductivities test macro of crack rock cellular construction | |
| CN203455294U (en) | Condensation point and pour point automatic tester | |
| CN111999129A (en) | Atmospheric water vapor collecting device and using method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |