CN206431129U - A kind of interface carbon dioxide exchange flux continuous automatic measurement device - Google Patents
A kind of interface carbon dioxide exchange flux continuous automatic measurement device Download PDFInfo
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- CN206431129U CN206431129U CN201720012955.8U CN201720012955U CN206431129U CN 206431129 U CN206431129 U CN 206431129U CN 201720012955 U CN201720012955 U CN 201720012955U CN 206431129 U CN206431129 U CN 206431129U
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Abstract
The utility model discloses a kind of interface carbon dioxide exchange flux continuous automatic measurement device, including CO2Analyzer, data logger, flux box, aspiration pump, for CO2Analyzer carries out the water droplet sensing module and air filtration head of waterproofing protection and for controlling gas circuit to carry out interior circulation or carrying out the gas circuit automaton of air exchange；Aspiration pump, gas circuit automaton, CO2Analyzer, air filtration head are connected by tracheae successively, and the outlet side of aspiration pump is connected to the intake interface of flux box by tracheae, and the outlet interface of flux box is connected to the inlet end of air filtration head by tracheae.The utility model realizes flux box gas and air exchange, excessive CO using gas circuit automaton2Absorb and CO2Flux is determined, and above-mentioned action is performed fully automatic under pumping pumping action and solenoid valve control, can obtain the interface C O of high frequency time2Flux data, and with it is inexpensive, easy to operate the characteristics of.
Description
Technical field
The utility model is related to a kind of gas testing device, and in particular to a kind of interface carbon dioxide exchange flux is continuous certainly
It is dynamic to determine device, belong to greenhouse gases Flux test device technical field.
Background technology
With CO2Infrared observation technology is continued to develop, and its technology is more and more ripe, and price is more and more lower, as current
The important means of environmental area greenhouse gases research.Compared to traditional sampling research, this is new with cheap, efficient and system mistake
The less feature of difference.It is substantial amounts of at present to determine interface using the technology（The water surface-air or soil-air）CO2Exchange
Logical quantifier elimination, is that Global climate change and reduction of greenhouse gas discharge provide a large amount of science data.But prior art exists as follows
Technical problem：
（1）It is larger to test object disturbance using the artificial method for lifting and fixing at the scene flux box more than prior art,
Can not possibly high-frequency variations of flux data.And there are some researches show interface C O2Exchange many by temperature, biological activity, rainfall etc.
The control of factor, deposits stronger time change.As rainfall can be to soil-Atmospheric CO2Generation is exchanged to excite or suppress to make
With so as to show the change of complexity during rainfall, the research in terms of the seizure of its process and controlling mechanism needs high frequency time
Continuous Observation is completed, and is only obviously unable to reach this requirement by traditional artificial field inspection method；
（2）There is interface C O since in recent years2Device in terms of the continuous of exchange, automatic Observation.But it is corresponding logical
Measuring tank is generally required by external force（Motor or cylinder driving）Open or close, energy expenditure is larger.Simultaneously as technology is more
Complexity, the volume of this flux box is fixed, it is difficult to be reequiped according to field actual conditions, this private flux case cost in addition
It is expensive and maintenance cost is higher, therefore it is unfavorable for field large-scale use；
（3）Also prior art determines CO in air, water body or soil2The gradient of concentration, water is calculated by diffusion model
Face or the CO of soil2Flux, the shortcoming of this method be the system being observed to have certain Space Consistency and
Meteorological condition, and generally require data that flux box method obtains to correct；
（4）CO2The quality of data of infrared sensor is easier to be influenceed by aqueous vapor, in the water surface-atmosphere interface CO2Exchange
Aqueous easily enters infrared sensor in research, so as to damage sensor.
For profound understanding soil-air and the water surface-atmosphere interface CO2Exchange rule, it is necessary to develop a set of high
The frequency, it is full-automatic, small and cost and the relatively low spread for continuous profiling of maintenance cost are disturbed to object of observation.
The content of the invention
The technical problems to be solved in the utility model is：A kind of interface carbon dioxide exchange flux continuous automatic measurement is provided
Device, the CO that the water surface or soil can be exchanged2Flux carries out continuous full-automatic observation, and with inexpensive, easy to operate
Feature.
The purpose of this utility model is achieved through the following technical solutions：
A kind of interface carbon dioxide exchange flux continuous automatic measurement device, including CO2It is analyzer, data logger, logical
Measuring tank, aspiration pump, for preventing aqueous water from entering CO2The water droplet sensing module and air cleaner of analyzer and for controlling
Gas circuit processed carries out interior circulation or carries out the gas circuit automaton of air exchange；The aspiration pump, gas circuit automaton,
CO2Analyzer, protector are connected by tracheae successively, and the outlet side of aspiration pump is connected to the air inlet of flux box by tracheae
Interface, the outlet interface of flux box connects an air cleaner by tracheae；Be provided with flux box temperature sensor and
Water droplet induction module, temperature sensor and CO2Analyzer is connected to data logger, and records temperature and CO by recorder2Concentration
Number, water droplet induction module is connected to the relay of gas circuit automaton, forms a protector, and it meets water power-off, rises
To protection CO2The effect of analyzer.
It is preferred that, the gas circuit automaton includes the first magnetic valve, the second magnetic valve, the 3rd magnetic valve and the 4th
Magnetic valve, CO2Absorption tube and the first relay of single channel, twin-channel second relay；First magnetic valve and the 3rd
Magnetic valve is One In and Two Out type gas two-position three-way valve；Second magnetic valve and the 4th magnetic valve are Two In and One Out type gas two
Position three-way valve；The air inlet and CO of first magnetic valve2The outlet side connection of analyzer, a gas outlet of the first magnetic valve and the
The air inlet connection of three magnetic valves, another one of air inlet company worked off one's feeling vent one's spleen with the second magnetic valve of the first magnetic valve
Connect, another air inlet of the second magnetic valve is connected with the gas outlet of the 4th magnetic valve, the gas outlet of the second magnetic valve and pumping
Pump is connected, one of gas outlet of the 3rd magnetic valve and air communication, and the 3rd another gas outlet of magnetic valve passes through CO2Absorb
One of air inlet connection of the magnetic valves of Guan Yu tetra-, another air inlet and air communication of the 4th magnetic valve；First relay
Device and aspiration pump, CO2Analyzer, the second relay are powered connection, the first passage of the second relay and the first magnetic valve, second
Magnetic valve and aspiration pump connection, the second channel of the second relay is connected with the 3rd magnetic valve and the 3rd magnetic valve, second after
Electrical equipment is communicated to connect with data logger.
Further, the gas circuit automaton also includes 12V the first power supply and second source, the first power supply with
First relay, temperature sensor are powered connection, and first, second passage of the second relay is powered with second source to be connected, and
Power and be connected with data logger after one power supply and second source series connection.
It is preferred that, water droplet induction module is installed at the top of flux box, it be connected with the first relay, for control first after
The opening or closure of electric switch.
It is preferred that, the CO2Filler inside absorption tube is soda lime or can absorb CO2Molecular sieve.
Compared with prior art, the beneficial effects of the utility model：
1st, the utility model realizes flux box gas and air exchange, excessive CO using gas circuit automaton2Absorb
And CO2Flux is determined, and above-mentioned action is performed fully automatic under pumping pumping action and solenoid valve control, can obtain high frequency time
Interface C O2Flux data, and with it is inexpensive, easy to operate the characteristics of；In addition, temperature sensor is set in flux box, its
Signal is recorded by data logger, is used directly for data calculating；In CO2An air filtration head is connected before analyzer
Link, plays simple waterproof and dustproof and ventilative function, when the water droplet induction module at the top of flux box senses aqueous water, the
One relay controller is switched off, and aspiration pump etc. is stopped, and can prevent aqueous water from entering CO2Analyzer, plays protection and makees
With.
2nd, in the utility model, gas circuit automaton mainly utilizes four gas two-position three-way valves, two relays
Device and, CO2Absorption tube is constituted, and disclosure satisfy that high frequency time determines interface C O2The demand of flux, it is simple in construction, it is easy to make.
3rd, in the utility model, powered by using two 12V timesharing to aspiration pump, be evacuated the high low-key of pump voltage
Solar term flow speed, is powered during testing with 12V power supplys, with air exchange and except the carbon stage uses 24V power voltage supplies, the former
The accuracy of test result can be ensured, and the latter can greatly promote air circulation degree and CO2Absorption tube absorbs gas speed
Rate.
4th, in the utility model, protector includes inductor and relay controller, when water droplet induction module is detected
During water droplet, whole device can be stopped, it is to avoid large quantity of moisture influences the quality of data and CO2Analyzer life-span, structure
Simply, it is easy to use.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is that circuit of the present utility model is connected and control principle drawing；
Description of reference numerals：1st, the first magnetic valve；2nd, the second magnetic valve；3rd, the 3rd magnetic valve；4th, the 4th magnetic valve；5th, take out
Air pump；6th, second source；7、CO2Absorption tube；8th, intake interface；9th, outlet interface；10th, temperature sensor；11st, flux box；12、
Water droplet controller；13rd, air filtration head；14、CO2Analyzer；15th, tracheae；16th, the first power supply；17th, the first relay；18th,
Two relays；19th, data logger；20th, gas circuit automaton.
Embodiment
Below in conjunction with the accompanying drawings and utility model is described further specific embodiment：
A kind of interface carbon dioxide exchange flux continuous automatic measurement device, including CO2Analyzer 14, data logger
19th, flux box 11, aspiration pump 5, for CO2Analyzer 14 carries out the protector 21 of waterproofing protection and for controlling gas
Road carries out interior circulation or carries out the gas circuit automaton 20 of air exchange；The aspiration pump 5, gas circuit automaton
20、CO2Analyzer 14, air filtration first 13 are connected by tracheae 15 successively, and the outlet side of aspiration pump 5 is connected by tracheae 15
To the intake interface 8 of flux box 11, the outlet interface 10 of flux box 11 is connected to the air inlet of air filtration first 13 by tracheae 15
End；Temperature sensor 10 is provided with flux box 11, the temperature sensor 10 and CO2Analyzer 14 is connected to data logger
19, while being provided with water droplet induction module 12 at the top of flux box 11.
In the present embodiment, the gas circuit automaton 20 includes the first magnetic valve 1, the electricity of the second magnetic valve the 2, the 3rd
The magnetic valve 4 of magnet valve 3 and the 4th, CO2Absorption tube 7 and the first relay 17 of single channel, twin-channel second relay 18；Institute
It is One In and Two Out type gas two-position three-way valve to state the first magnetic valve 1 and the 3rd magnetic valve 3；The electricity of second magnetic valve 2 and the 4th
Magnet valve 4 is Two In and One Out type gas two-position three-way valve；The air inlet and CO of first magnetic valve 12The outlet side connection of analyzer 14,
One gas outlet of the first magnetic valve 1 is connected with the air inlet of the 3rd magnetic valve 3, the first magnetic valve 1 another work off one's feeling vent one's spleen with
One of air inlet connection of second magnetic valve 2, another air inlet of the second magnetic valve 2 and the outlet of the 4th magnetic valve 4
Mouth connection, the gas outlet of the second magnetic valve 2 is connected with aspiration pump 5, and one of gas outlet and the air of the 3rd magnetic valve 3 connect
Logical, the 3rd another gas outlet of magnetic valve 3 passes through CO2Absorption tube 7 is connected with one of air inlet of the 4th magnetic valve 4, the
Another air inlet and air communication of four magnetic valves 4；First relay 17 and aspiration pump 5, CO2Analyzer 14, the second relay
18 power supply connections, the first passage of the second relay 18 is connected with the first magnetic valve 1, the second magnetic valve 2 and aspiration pump 5, the
The second channel of two relays 18 is connected with the 3rd magnetic valve 3 and the 3rd magnetic valve 4.
Further, the gas circuit automaton 20 also includes 12V the first power supply 16 and second source 6, first
Power supply 16 is connected with the first relay 17, the power supply of temperature sensor 10, first, second passage of the second relay 18 and the second electricity
The power supply connection of source 6, the first power supply 16 and second source 6 be connecteds after connecting with the power supply of data logger 19, the second relay 18 and
Data logger is communicated to connect.
In the present embodiment, the water droplet induction module 12 being arranged on flux box 11 is connected with the first relay 17, control
The power supply or power-off of whole device.
The CO2Filler inside absorption tube 7 is soda lime or can absorb CO2Molecular sieve.
Operation principle of the present utility model is：
Flux box 11 is placed in air, as CO in the pipeline for entirely determining device2Concentration reach CO in air2It is dense
During degree level, data logger 19 is alarmed, at the same to the second relay 18 send signal make the second relay 18 first passage,
Second channel is disconnected so that the first magnetic valve 1, the second magnetic valve 2, the 3rd magnetic valve 3 and the 4th magnetic valve 4 are powered off,
Now the gas circuit between the first magnetic valve 1 and the 3rd magnetic valve 3 disconnects, the gas circuit between the second magnetic valve 2 and the 4th magnetic valve 4
Disconnect, the gas circuit between the 3rd magnetic valve 3 and the 4th magnetic valve 4 disconnects, and between the first magnetic valve 1 and the second magnetic valve 2
Gas circuit is connected, and now aspiration pump 5 is only powered by 12V the first power supply 16, and gas circuit air flow rate is small.In gas circuit automaton
In 20, air-flow is by CO2The outlet side of analyzer 14, aspiration pump 5 is flow to through the first magnetic valve 1, the second magnetic valve 2.During delay t1
Between（T1 is the testing time）Afterwards, the first passage switch adhesive of the second relay 18, the first magnetic valve 1 and the second magnetic valve 2 are logical
Electricity, the now gas circuit disconnection between the first magnetic valve 1 and the second magnetic valve 2, between the first magnetic valve 1 and the 3rd magnetic valve 3
Gas circuit is connected, and the second magnetic valve 2 is connected with the gas circuit between the 4th magnetic valve 4, between the 3rd magnetic valve 3 and the 4th magnetic valve 4
Keep a upper action（Gas circuit disconnects between i.e.）, air exchange is now carried out, the first power supply 16 and second source 6 are simultaneously to pumping
Pump 5 is powered, and aspiration pump 5 works under the conditions of 24V, and air flow rate becomes big in gas circuit, in gas circuit automaton 20, air-flow
By CO2The outlet side of analyzer 14, after the first magnetic valve 1, is drained into air by the gas outlet of the 3rd magnetic valve 3, and new
Fresh air is entered by the inlet gas of the 4th magnetic valve 4 again, is flow to aspiration pump 5 by the second magnetic valve 2 and then is flowed to flux box 11.
It is delayed the t1+t2 times（T2 is the duration of air exchange）Afterwards, the second channel switch also adhesive of the second relay 18, now the 3rd
The magnetic valve 4 of magnetic valve 3 and the 4th is also powered, and the 3rd magnetic valve 3 and the 4th magnetic valve 4 disconnect with air, the 3rd magnetic valve 3 and the
Gas circuit connection between four magnetic valves 4, the first magnetic valve 1 and the second magnetic valve 2 keep laststate, and aspiration pump is still by first
Power supply 16 and second source 6 are powered simultaneously, now under the drive of aspiration pump 5, and the flow direction of air-flow is：Flux box 11 --- air
Filtering head 13 --- CO2Analyzer 14 --- gas circuit automaton 20 --- aspiration pump 5 --- flux box 11, in gas circuit certainly
In dynamic control device 20, air-flow is by CO2The outlet side of analyzer 14, through the first magnetic valve 1, the 3rd magnetic valve 3 after flow to
CO2Absorption tube 7, flow to aspiration pump 5 by the 4th magnetic valve 4, the second magnetic valve 2 afterwards, passes through CO2Analyzer is measured, and will
Determination data is uploaded in data logger 19, works as CO2Concentration reaches CO in air2Concentration level when data logger 19 enter
Row alarm, and signal is sent to the first relay 18, above step is repeated, next round test is automatically begun to.
In addition, when water droplet induction module 12 detect water droplet in the presence of, switching off for the first relay 17 of control is entered
And the switch of all passages of the second relay 18 also accordingly disconnects, aspiration pump 5, CO2Analyzer 14 etc. is stopped, it is to avoid big
Measure the moisture influence quality of data and damage CO2Analyzer 14.
CO2The duration t1 that flux is determined needs to set according to research, can generally be set to 4-10min.Will in practical application
CO is estimated first2The scope of exchange capacity, to obtain larger terminal CO as far as possible2Concentration, and CO2Concentration change with time for
Straight line is principle.
The duration t2 of air exchange according to the flow of the volume and aspiration pump 5 of flux box 11 and tracheae 15 determine, generally
The amount of ventilating is more than system gas circuit volume（The pipe inner volume of effective volume+tracheae 15 including flux box）5 times with
On, to ensure that air is fully exchanged with interface exchanging gas, make CO2Concentration is as close possible to Atmospheric CO2Concentration level, so as to subtract
Few CO2The carbon absorption amount of absorption tube.
CO in 19 in data logger2The setting of alarm value will reach or close to air average level, can be slightly above
Concentration in air, in order to prevent recorder alarm abnormal, sets the alarm return difference of certain value（Such as 10ppm）, prevent wrong report.
The big I of flux box 11 flexibly makes according to field situation, recommends cylindrical type, but in real work middle column body height
Can be 25cm, wherein 3-5cm insertions interface（In water or soil）, to ensure system seal, body diameter 20cm.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to protection domain of the present utility model.
Claims (5)
1. a kind of interface carbon dioxide exchange flux continuous automatic measurement device, it is characterised in that：
Including CO2Analyzer（14）, data logger（19）, flux box（11）, aspiration pump（5）, filtering head（13）, water droplet sensing
Module（12）And for controlling gas circuit to carry out interior circulation or carrying out the gas circuit automaton of air exchange（20）；
The aspiration pump（5）, gas circuit automaton（20）、CO2Analyzer（14）, gas filtration head successively by tracheae（15）
Connected, aspiration pump（5）Outlet side pass through tracheae（15）It is connected to flux box（11）Intake interface（8）, flux box
（11）Outlet interface（9）Pass through tracheae（15）It is connected to gas filtration head（13）Inlet end；
In flux box（11）On be provided with temperature sensor（10）With water droplet induction module（12）, wherein temperature sensor（10）With
CO2Analyzer（14）It is connected to data logger（19）, water droplet induction module（12）Control gas circuit automaton（20）Beat
Open or close.
2. a kind of interface carbon dioxide exchange flux continuous automatic measurement device according to claim 1, it is characterised in that：
The gas circuit automaton（20）Including the first magnetic valve（1）, the second magnetic valve（2）, the 3rd magnetic valve（3）With
Four magnetic valves（4）、CO2Absorption tube（7）And the first relay of single channel（17）, twin-channel second relay（18）；
First magnetic valve（1）With the 3rd magnetic valve（3）For One In and Two Out type gas two-position three-way valve；
Second magnetic valve（2）With the 4th magnetic valve（4）For Two In and One Out type gas two-position three-way valve；
First magnetic valve（1）Air inlet and CO2Analyzer（14）Outlet side connection, the first magnetic valve（1）A gas outlet
With the 3rd magnetic valve（3）Air inlet connection, the first magnetic valve（1）Another work off one's feeling vent one's spleen and the second magnetic valve（2）Wherein
One air inlet connection, the second magnetic valve（2）Another air inlet and the 4th magnetic valve（4）Gas outlet connection, second electricity
Magnet valve（2）Gas outlet and aspiration pump（5）Connection, the 3rd magnetic valve（3）One of gas outlet and air communication, the 3rd electricity
Magnet valve（3）Another gas outlet passes through CO2Absorption tube（7）With the 4th magnetic valve（4）One of air inlet connection, the 4th electricity
Magnet valve（4）Another air inlet and air communication；
First relay（17）With aspiration pump（5）、CO2Analyzer（14）, the second relay（18）Power supply connection, the second relay
（18）First passage and the first magnetic valve（1）, the second magnetic valve（2）And aspiration pump（5）Connection, the second relay（18）'s
Second channel and the 3rd magnetic valve（3）With the 3rd magnetic valve（4）Connection, the second relay（18）With data logger（19）Communication
Connection.
3. a kind of interface carbon dioxide exchange flux continuous automatic measurement device according to claim 2, it is characterised in that：
The gas circuit automaton（20）Also include 12V the first power supply（16）And second source（6）, the first power supply（16）With
One relay（17）, temperature sensor（10）Power supply connection, the second relay（18）First, second passage and second source
（6）Power supply connection, the first power supply（16）And second source（6）With data logger after series connection（19）Power supply connection.
4. a kind of interface carbon dioxide exchange flux continuous automatic measurement device according to claim 1 or 2, its feature exists
In：Flux box（11）Top is provided with water droplet induction module（12）, itself and the first relay（17）Connection, for control first after
Electrical equipment（17）The opening or closure of switch.
5. a kind of interface carbon dioxide exchange flux continuous automatic measurement device according to claim 2, it is characterised in that：
The CO2Absorption tube（7）Internal filler is soda lime or can absorb CO2 molecular sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720012955.8U CN206431129U (en) | 2017-01-06 | 2017-01-06 | A kind of interface carbon dioxide exchange flux continuous automatic measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720012955.8U CN206431129U (en) | 2017-01-06 | 2017-01-06 | A kind of interface carbon dioxide exchange flux continuous automatic measurement device |
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| Publication Number | Publication Date |
|---|---|
| CN206431129U true CN206431129U (en) | 2017-08-22 |
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ID=59584793
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720012955.8U Expired - Fee Related CN206431129U (en) | 2017-01-06 | 2017-01-06 | A kind of interface carbon dioxide exchange flux continuous automatic measurement device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771078A (en) * | 2017-01-06 | 2017-05-31 | 中国科学院地球化学研究所 | A kind of interface carbon dioxide exchange flux continuous automatic measurement device |
| CN108692994A (en) * | 2018-04-24 | 2018-10-23 | 中国石油天然气股份有限公司 | A kind of injection gas displacement well site aerated zone soil carbon dioxide flux monitoring device and method |
| CN109375286A (en) * | 2018-09-12 | 2019-02-22 | 广州海洋地质调查局 | A kind of self-operated measuring unit and method of Air-sea heat fluxes |
| 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 |
-
2017
- 2017-01-06 CN CN201720012955.8U patent/CN206431129U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771078A (en) * | 2017-01-06 | 2017-05-31 | 中国科学院地球化学研究所 | A kind of interface carbon dioxide exchange flux continuous automatic measurement device |
| CN108692994A (en) * | 2018-04-24 | 2018-10-23 | 中国石油天然气股份有限公司 | A kind of injection gas displacement well site aerated zone soil carbon dioxide flux monitoring device and method |
| CN109375286A (en) * | 2018-09-12 | 2019-02-22 | 广州海洋地质调查局 | A kind of self-operated measuring unit and method of Air-sea heat fluxes |
| 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 |
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| CF01 | Termination of patent right due to non-payment of annual fee |