CN202631497U - Controllable correction environment-based measurement device for atmospheric water isotope gradient and vertical fractionation process - Google Patents
Controllable correction environment-based measurement device for atmospheric water isotope gradient and vertical fractionation process Download PDFInfo
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- CN202631497U CN202631497U CN 201220088539 CN201220088539U CN202631497U CN 202631497 U CN202631497 U CN 202631497U CN 201220088539 CN201220088539 CN 201220088539 CN 201220088539 U CN201220088539 U CN 201220088539U CN 202631497 U CN202631497 U CN 202631497U
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Abstract
The utility model relates to a controllable correction environment-based measurement device for an atmospheric water isotope gradient and a vertical fractionation process. The device comprises an air generation device, a standard water vapor fractionation device, an atmospheric water vapor gradient sample introduction device, a water vapor analysis device, an environmental condition monitoring and control device, a meteorological data acquisition device and a data acquisition and control system. The stable isotope ratio, gradient and fractionation process of hydrogen and oxygen in water vapor under a field natural condition can be quickly, dynamically and accurately measured, and the measurement accuracy of delta<18>O and deltaD of the water vapor can be objectively evaluated and corrected, so that the device is scientifically significant for the measurement and evaluation of the delta<18>O and deltaD of the atmospheric water vapor.
Description
Technical field
The utility model relates to aerology and water isotopy field monitoring field, especially a kind of portable atmospheric water δ
18The device of O and δ D isotope ratio, gradient and the test of vertical fractional distillation process thereof.
Background technology
Since the special existing way of stable isotope and its physicochemical change process, H
2 18O, HD
16O and H
2 16O has become the best tracer agent of water cycle in several ring layers such as earth atmosphere circle, hydrosphere, cryosphere, biosphere, relates to multi-disciplinary research instruments such as aerology, hydrology and climatology.Because the restriction of sampling and analytical technology for the research of atmosphere vapour hydrogen and oxygen stable isotope ratio, mostly is confined to the condition of thick room and time resolution at present.And, also all concentrate on the simulation of theoretical experiment and physical process for the isotope fractionation process on the Atmosphere-Ocean System boundary layer.Therefore, develop a kind of device of measurement,, realize δ in the steam through simulating steam stable isotope ratios, gradient under the open-air natural mobile condition
18The observation of O and δ D gradient and fractional distillation process, thus realize in real time, on the spot, on a large scale, under the condition such as portable, low energy consumption, to atmosphere vapour δ
18O and the isotopic measurement of δ D and evaluation have crucial scientific meaning.
Summary of the invention
Be scientific evaluation atmosphere vapour δ
18The accuracy of observation of O and δ D isotope ratio gradient and flux is also obtained quality data, and the purpose of the utility model aims to provide a kind of device based on controlled correction environment atmospheric water isotope gradient and vertical fractional distillation process measurement thereof.
The purpose of the utility model can realize through following technical scheme:
A kind of device based on controlled correction environment atmospheric water isotope gradient and vertical fractional distillation process measurement thereof; Comprise dry air generation device, standard steam fractionation plant, atmosphere vapour gradient sampling device, vapour analysis device, environmental baseline monitor controller, weather data harvester and data acquistion and control system, it is characterized in that:
A. in the dry air generation device; Utilize air pump to produce pressurized air; The temperature balance that makes air through copper pipe is to environment temperature, produces dry air after then getting into renewable exsiccator, and it is further dry to get into the molecular sieve that dewaters again; Behind filter, through flow controller air-flow is steadily exported again;
B. in the standard steam fractionation plant, in the gas-liquid fractional distilling flask, injected the aqueous water of specific hydrogen and oxygen stable isotopic ratio respectively; By pulse operation valve folding control, the anhydrous dry air that the dry air generation device produces produces the bubble and the state that reaches capacity through getting into specific gas-liquid fractional distilling flask behind the four-way interface from the bottom, produce saturation vapour; And after reach steady state (SS) in the four-way interface entering moisture balance monitoring bottle; And monitor steam humidity herein to control its state of saturation; Produce here gas can be used as demarcation steam, get into vapour analysis device branch;
C. atmosphere vapour gradient sampling device, ambient atmosphere is got into by atmosphere vapour sample air intake opening, crosses filter, then gets into the gas buffer bottle and reach steady state (SS), gets into the vapour analysis device and analyzes, and air intake opening is selected to be controlled by the pulse operation valve;
D. the vapour analysis device is driven by air pump, and steam sample/steam standard is selected by the pulse operation valve, with further pilot-gas flow velocity, gets into steam δ through flow controller
18O and δ D isotope analysis appearance are analyzed;
E. environmental baseline monitoring device; Receive the Monitoring Data of Hygrothermograph and environment temperature varitrol by control chip; And send order with the pilot-gas flow velocity to flow controller as required, send order and then regulate thermopair to the environment temperature varitrol to regulate environment temperature; The control chip while is the switch of gating pulse operation valve also.The environment temperature automatic control system is regulated the temperature of all devices except that induction part filter, atmosphere vapour sample air intake opening, gas buffer bottle;
F. the weather data acquisition system receives the atmospheric surveillance data of Hygrothermograph by control chip, and transfers in the notebook computer;
G. data acquistion and control system, installing analysis instrument data receiving software Picarro Trace Gas Analyzer.vi is with real time record steam δ in notebook computer
18The measurement data of O and δ D isotope analysis appearance; Install or NI Labview Control Software with the operation of control chip, and the environmental data of measuring by Hygrothermograph and environment temperature varitrol through the control chip real time record, and the experiment place atmosphere humiture data that write down of Hygrothermograph.
The advantage of the utility model:
1, the dry air manufacturing system can produce the dry air that vapour concentration is about 5ppm; Initiated a kind of steam δ
18O and δ D standard produce and bearing calibration, and control is also write down experiment condition simultaneously, accurately the error of control criterion gas; Automatically control five tunnel air inlets and the accurate gas of three road signs can use linear fit correction method control analysis precision, and precision is high; The each several part volume is all very little, can be integrated in the carrying case, is convenient to field survey, can measure with means of transport as required.
2, all gas pipeline all utilizes the Teflon material to connect.It is to H
2 18O, HD
16O and H
2 16O does not all have absorption or exchange interaction, can guarantee the accurate of isotope ratio.
3, the measurement of the utility model can be used for (containing extreme condition) under various field conditions atmosphere vapour hydrogen and oxygen stable isotope ratio, gradient, and the measurement of the vertical fractional distillation process of inferior atmospheric layer steam hydrogen and oxygen stable isotope.
Description of drawings:
Fig. 1 is the utility model synoptic diagram.
Embodiment
The utility model adopts accessory to tabulate:
Below in conjunction with accompanying drawing, the following description done in the practical implementation of the utility model:
Device as shown in Figure 1, that a kind of controlled correction atmospheric water hydrogen and oxygen stable isotope ratio, gradient and vertical fractional distillation process thereof are measured comprises
1) dry air generation device comprises air pump 1, copper pipe 2, renewable exsiccator 3, the molecular sieve that dewaters 4, filter 5, flow controller 6;
2) standard steam fractionation plant comprises two four-way interfaces 7, three gas-liquid fractional distilling flasks 8, three pulse operation valves 9, moisture balance monitoring bottle 10 (including Hygrothermograph 15);
3) atmosphere vapour gradient sampling device comprises five atmosphere vapour sample air intake openings 11, five filters 5, five gas buffer bottles 12, five pulse operation valves 9;
4) vapour analysis device comprises air pump 1, flow controller 6, steam δ
18O and δ D isotope analysis appearance 13;
5) environmental baseline monitor controller comprises control chip 14, water vapour environment monitor (Hygrothermograph) 15, environment temperature varitrol 16, thermopair 17, flow controller 6, insulation can 19;
6) weather data harvester comprises five Hygrothermographs 15;
7) data acquistion and control system comprises 18 1 of notebook computers, and related software is installed.
This device is except that extraneous atmosphere air intake opening 7, filter 5, gas buffer bottle 12, Hygrothermograph 15 and notebook computer 18; All parts are installed in the carrying case; The carrying case shell is by the insulation material manufacturing; The liner thermopair is with the temperature that controls environment (being rated for 25 ℃), through environment temperature automatic control system 16 control thermopairs.After configuring program, notebook computer 18 also can be placed in the carrying case 19.
This device pressure control is at 25psi; Pressurized air carries out environment temperature through copper pipe 2 to be regulated; After reaching environment temperature; Pressurized air produces dry air through renewable exsiccator 3 backs; Theoretical dew point be-30 ℃, and further dry through the molecular sieve 4 that dewaters, and reaches vapour concentration 5ppm pressurized air and removes impurity such as dust in air through filter 5 in order to avoid the pollution experimental apparatus.Use traffic controller 6 control flow velocitys are 300ml/min-310ml/min (SN452GPP, EGE-Elektronik Spezial Sensoren Gmbh) control dry air output pressure.
By pulse valve 9 controls, dry air gets into specific gas-liquid fractional distilling flask 8 through four-way interface 7 backs.The liquid water of three kinds of different stable isotope ratios is put into gas-liquid fractional distilling flask 8 respectively, and air gets into gas-liquid fractional distilling flask 8 bottoms and produces bubble and reach capacity the generation saturation vapour; And go into steam balance monitoring bottle 10 after four-way interface 7 is laggard, stable herein and measure the environmental baseline of steam by Hygrothermograph 15.The switching of three gas-liquid fractional distilling flasks 8 through 9 controls of control chip 14 switching pulse valves, can produce three standard steam by data acquistion and control system 18.Gas-liquid fractional distilling flask 8 is the slender type glass container with moisture balance monitoring bottle 10.
Five the atmospheric sample air intake openings 11 in Fig. 1 left side are controlled through control chip 14 switching pulse valves 9 by portable computer 18; Outside air is got into through snorkel air intake opening 11 by five atmosphere vapour samples, and sample is at first through filter 5, to prevent the influence of impurity such as dust in air; Further through gas buffer bottle 12, gas buffer bottle 12 can adopt high-density polyethylene material plastic bottle or vial to sample, and the turbulent flow that reduces gas reduces the asynchronous of observation gas simultaneously.The sample air inlet is driven by air pump 1, and air pump 1 plays the process auxiliary drive effect to standard steam fractionation plant simultaneously except that driving the atmospheric sample sample introduction; Flow controller 6 control induction air flow ratios are 300ml/min, to meet steam δ
18The needs of O and δ D isotope analysis appearance 13; Steam δ
18O and 13 analyses of δ D isotope analysis appearance obtain data in real time and transfer to notebook computer 18 through lead.
Steam sample or steam standard are gone into the steam analytical equipment through pulse valve 9 is laggard, are 300ml/min by flow controller 6 control flow velocitys, get into steam δ
18O and δ D isotope analysis appearance 13 are analyzed.
The ambient atmosphere environmental baseline is by Hygrothermograph 15 records, and totally five layer data and air intake opening 11 highly are equal to; Data transfer to data acquistion and control system through control chip 14.
Installation data process software Picarro Trace Gas Analyzer.vi in notebook computer 18, the real time record analysis result; Utilize NI Labview Control Software through control chip 14 real-time monitoring record Hygrothermographs 15, the sensor of environment temperature varitrol 16 and the data of Hygrothermograph 15; And the flow of Control Flow controller 6; The switch of gating pulse valve 9, the operation of the temperature that controls environment varitrol 16 and thermopair 17.
The gradient of three gas-liquid fractional distilling flask 8 interior liquid hydrogen oxygen stable isotope standards need rationally contain experiment place discreet value, to guarantee calibration accuracy.The state if Hygrothermograph 15 test discovery steam do not reach capacity then through control chip 14 adjustment flow controller 6 or environment temperature automatic control systems 16, to produce saturation vapour, uses its hydrogen and oxygen stable isotope ratio of Rayleigh fractionation formula calculating.
According to above-mentioned principle, utilize this device, and during November 3 to Dec 5 in 2011, walk on the line of air route (station, mountain among Shanghai-Tianjin-Perth-) in Chinese Antarctic investigation team and observe; Observe at station, ice sheet peak the Kunlun in the South Pole January 10,2012 5 days to 2012 January in, and carry out Primary Study choosing away boat observation partial data, as shown in table 1.
Table 1. test data of experiment
| Observed altitude (m) | Temperature | Relative humidity (%) | The oxygen isotope ratio | The hydrogen isotope ratio |
| 1 | 2.4 | 96 | -12.94 | -95.20 |
| 3 | 2.7 | 95 | -13.12 | -96.54 |
| 5 | 3.1 | 94 | -13.22 | -96.98 |
| 10 | 3.6 | 95 | -13.35 | -98.12 |
| 15 | 4 | 92 | -14.07 | -99.61 |
So it is following that table 1 obtains table 2 through overcorrect
Table 2. is proofreaied and correct the back data
| Observed altitude (m) | Temperature | Relative humidity (%) | The oxygen isotope ratio | The hydrogen isotope ratio |
| 1 | 2.4 | 96 | -12.9553 | -95.2005 |
| 3 | 2.7 | 95 | -13.1353 | -96.5407 |
| 5 | 3.1 | 94 | -13.2353 | -96.9807 |
| 10 | 3.6 | 95 | -13.3653 | -98.1209 |
| 15 | 4 | 92 | -14.0854 | -99.6111 |
According to the fractionation factor that calculates the oxygen isotope ratio is 1.053933 (10/15m layer position, other layer position are slightly), explains that this fractional distillation process is downward enrichment; The fractionation altitude curve is H=0.003 δ
18O+0.994.
Claims (1)
1. device of measuring based on controlled correction environment atmospheric water isotope gradient and vertical fractional distillation process thereof; Comprise dry air generation device, standard steam fractionation plant, atmosphere vapour gradient sampling device, vapour analysis device, environmental baseline monitor controller, weather data harvester and data acquistion and control system, it is characterized in that:
A. in the dry air generation device; Utilize air pump (1) to produce pressurized air; The temperature balance that process copper pipe (2) makes air then gets into renewable exsiccator (3) back and produces dry air to environment temperature, gets into the further drying of molecular sieve (4) that dewaters again; Behind filter (5), through flow controller (6) air-flow is steadily exported again;
B. in the standard steam fractionation plant, in gas-liquid fractional distilling flask (8), injected the aqueous water of specific hydrogen and oxygen stable isotopic ratio respectively; By pulse operation valve (9) folding control, the anhydrous dry air that the dry air generation device produces gets into specific gas-liquid fractional distilling flask (8) through four-way interface (7) back, produces the bubble and the state that reaches capacity from the bottom, produces saturation vapour; And after reach steady state (SS) in four-way interface (7) the entering moisture balance monitoring bottle (10); And monitor steam humidity herein to control its state of saturation; Produce here gas can be used as demarcation steam, get into the vapour analysis device;
C. atmosphere vapour gradient sampling device, ambient atmosphere is got into through snorkel air intake opening (11) by the atmosphere vapour sample, crosses filter (5 '), then gets into gas buffer bottle (12) and reach steady state (SS), gets into the vapour analysis device and analyzes; Air intake opening (11) is selected to be controlled by pulse operation valve (9);
D. the vapour analysis device is driven by air pump (1), and steam sample/steam standard is selected by pulse operation valve (9), with further pilot-gas flow velocity, gets into steam δ through flow controller (6)
18O and δ D isotope analysis appearance (13) are analyzed;
E. environmental baseline monitoring device; Receive the Monitoring Data of Hygrothermograph (15) and environment temperature varitrol (16) by control chip (14); And send order with the pilot-gas flow velocity to flow controller (6) as required, send order and then regulate thermopair (17) to environment temperature varitrol (16) to regulate environment temperature; Control chip (14) while is the switch of gating pulse operation valve (9) also, and environment temperature automatic control system (16) is regulated the temperature of all devices except that induction part filter (5), atmosphere vapour sample air intake opening (11), gas buffer bottle (12);
F. the weather data acquisition system receives the atmospheric surveillance data of Hygrothermograph (15) by control chip (14), and transfers in the notebook computer (18);
G. data acquistion and control system.
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|---|---|---|---|
| CN 201220088539 CN202631497U (en) | 2012-03-09 | 2012-03-09 | Controllable correction environment-based measurement device for atmospheric water isotope gradient and vertical fractionation process |
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| CN 201220088539 CN202631497U (en) | 2012-03-09 | 2012-03-09 | Controllable correction environment-based measurement device for atmospheric water isotope gradient and vertical fractionation process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198405A (en) * | 2016-07-04 | 2016-12-07 | 中国气象科学研究院 | System for the monitoring of atmosphere vapour hydrogen and oxygen stable isotope ratio |
| CN108801735A (en) * | 2018-06-26 | 2018-11-13 | 深圳雨伦环境科技有限公司 | A kind of plant leaf blade water isotope enrichment signal tagging system and labeling method |
| CN116264105A (en) * | 2022-06-16 | 2023-06-16 | 中国科学院大气物理研究所 | Algorithm suitable for coupling isotope chemical fractionation and atmospheric chemical transmission mode |
| CN117825129A (en) * | 2024-03-04 | 2024-04-05 | 内蒙古工业大学 | Experimental test piece and method for testing isotope fractionation at high temperature and high pressure |
-
2012
- 2012-03-09 CN CN 201220088539 patent/CN202631497U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198405A (en) * | 2016-07-04 | 2016-12-07 | 中国气象科学研究院 | System for the monitoring of atmosphere vapour hydrogen and oxygen stable isotope ratio |
| CN108801735A (en) * | 2018-06-26 | 2018-11-13 | 深圳雨伦环境科技有限公司 | A kind of plant leaf blade water isotope enrichment signal tagging system and labeling method |
| CN116264105A (en) * | 2022-06-16 | 2023-06-16 | 中国科学院大气物理研究所 | Algorithm suitable for coupling isotope chemical fractionation and atmospheric chemical transmission mode |
| CN116264105B (en) * | 2022-06-16 | 2023-10-03 | 中国科学院大气物理研究所 | Algorithm suitable for coupling isotope chemical fractionation and atmospheric chemical transmission mode |
| CN117825129A (en) * | 2024-03-04 | 2024-04-05 | 内蒙古工业大学 | Experimental test piece and method for testing isotope fractionation at high temperature and high pressure |
| CN117825129B (en) * | 2024-03-04 | 2024-05-10 | 内蒙古工业大学 | Experimental test piece and method for testing isotope fractionation at high temperature and high pressure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20140309 |