CN105136712A - Portable tester for partial pressure of carbon dioxide in water - Google Patents
Portable tester for partial pressure of carbon dioxide in water Download PDFInfo
- Publication number
- CN105136712A CN105136712A CN201510600274.9A CN201510600274A CN105136712A CN 105136712 A CN105136712 A CN 105136712A CN 201510600274 A CN201510600274 A CN 201510600274A CN 105136712 A CN105136712 A CN 105136712A
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- water
- partial pressure
- pvc pipe
- probe
- 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.)
- Pending
Links
Abstract
The invention relates to a portable tester for partial pressure of carbon dioxide in water. The tester comprises a carbon dioxide probe, a PVC (polyvinyl chloride) tube, a waterproof and breathable PTFE (polytetrafluoroethylene) membrane and a control displayer, wherein a plug is arranged at the lower end of the PVC tube, water holes are distributed in the side wall of the PVC tube, the carbon dioxide probe is located in the PVC tube, and a layer of the waterproof and breathable PTFE membrane is arranged outside the carbon dioxide probe; the control displayer is connected with the carbon dioxide probe through a data line and used for controlling testing of the tester and displaying tested data. The portable tester for the partial pressure of the carbon dioxide in the water is simple to operate, small and exquisite in size, convenient to carry, accurate and quick in test and capable of performing on-site tests on the partial pressure of the carbon dioxide in various water bodies in the field.
Description
Technical field
The present invention relates to surveying instrument field, be specifically related to partial pressure of carbon dioxide tester in a kind of Portable water.
Background technology
Converge in research at karst carbon, because karst dynamic system is to the susceptibility of environment, in water, the field of partial pressure of carbon dioxide is monitored continuously becomes difficult point, and cause at estimation time error very large, a lot of change procedure cannot catch and obtain.
In the past to the monitoring of partial pressure of carbon dioxide in karst water mainly through following two kinds of methods: (1) tests pH value, water temperature and conductivity by field condition, manual titration Ca
2+with
content, or sampling send lab analysis to test the content obtaining each ion in water, then carry out saturation index calculating by water chemistry software, obtain the partial pressure of carbon dioxide data in water; (2) pH value of monitoring karst water continuously, water temperature and conductivity is passed through, and Ca
2+with
content, sets up conductivity and Ca
2+with
(hypotheses is the karst water compared with Pure Carbonate Landform area to the linear relationship of content, and main anions and canons is wherein respectively
ca
2+), obtain Ca by the conductivity data of continuous monitoring record
2+with
the continuous data of content, and then calculated by water chemistry software.
Said method has some limitations, and is mainly reflected in: (1) needs the data of many laboratory hydrochemical analyse tests to come for calculating, but very easily causes pH to change because TWS changes, and test result accuracy is affected; (2) the pH electrode that field uses is generally glass reference electrode, due to the restriction of principle and instrument performance, its error is generally 0.2 pH unit, and in aqueous solution, carbonate eqrilibrium system depends on temperature and pH, and the error of 0.2 pH unit will cause calculation deviation larger; (3) allogenic water is not necessarily suitable for, time particularly wherein containing organic acid.Thus in the urgent need to a kind of external enwergy out of office accurately, the instrument of partial pressure of carbon dioxide in Fast Measurement water.
Summary of the invention
In sum, for solving existing technical matters, the invention provides partial pressure of carbon dioxide tester in a kind of Portable water, can accurately, partial pressure of carbon dioxide in Fast Measurement water.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: partial pressure of carbon dioxide tester in a kind of Portable water, comprise carbon dioxide probe, pvc pipe, PTFE waterproof ventilated membrane and control display, plug is provided with in the lower end of described pvc pipe, and on the sidewall of described pvc pipe, be distributed with limbers, described carbon dioxide probe is in described pvc pipe, outside described carbon dioxide probe, be provided with PTFE waterproof ventilated membrane described in one deck;
Described control display connects described carbon dioxide probe by data line, for the test of control instrument and the data of display test.
Further, the upper end of described pvc pipe is connected with handle, described handle is also provided with described limbers and measures the scale of described pvc pipe lower end apart from the water surface degree of depth.
Further, the diameter of described limbers is 6mm.
Further, be removably connected with extension rod in the upper end of described handle, described extension rod be also provided with the scale measuring the described pvc pipe lower end distance water surface degree of depth.
Further, described control display comprises the button of control instrument test and the display screen of display test data.
The invention has the beneficial effects as follows: partial pressure of carbon dioxide tester in a kind of Portable water provided by the invention, this instrumentation is simple, compact is easy to carry, and test is accurate, quick, can test the partial pressure of carbon dioxide in the various water body in field.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, carbon dioxide probe, 2, pvc pipe, 3, PTFE waterproof ventilated membrane, 4, control display, 5, plug, 6, limbers, 7, handle, 8, scale, 9, extension rod, 10, button, 11, display screen.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, partial pressure of carbon dioxide tester in a kind of Portable water, comprise carbon dioxide probe 1, pvc pipe 2, PTFE waterproof ventilated membrane 3 and control display 4, plug 5 is provided with in the lower end of described pvc pipe 2, and on the sidewall of described pvc pipe 2, be distributed with limbers 6, preferred: the diameter of described limbers 6 is 6mm.Described carbon dioxide probe 1 is in described pvc pipe 2, outside described carbon dioxide probe 1, be provided with PTFE breathable membrane 3 described in one deck.Carbon dioxide probe 1 is wrapped in PTFE breathable membrane 3, in water, carbon dioxide is through the test chamber entering into carbon dioxide probe 1 behind limbers 6 again through PTFE breathable membrane 3, due to highly-breathable and the water proofing property of PTFE breathable membrane 3, and the aerial rate of propagation of carbon dioxide is than in water fast 10000 times, place a period of time (as 3 minutes) in water after, diffuse into carbon dioxide through PTFE waterproof ventilated membrane 3 to pop one's head in the carbon dioxide of 1 test chamber, mobile equilibrium is reached by with the carbon dioxide in water, then detect by carbon dioxide probe 1 method of infrared absorption the density of carbon dioxide gas entering into test chamber, thus the concentration (dividing potential drop) of carbon dioxide in detection water outlet.Wherein pvc pipe has been the effect of protection carbon dioxide probe 1; when measuring the dividing potential drop of carbon dioxide in water; carbon dioxide probe 1 is got rid of in water body; pvc pipe can prevent from carbon dioxide from popping one's head in 1 encountering sharp object bottom bank or riverbed because of carelessness as stone; cause the PTFE waterproof ventilated membrane outside carbon dioxide probe 1 to be knocked against hard, and then cause tip damage.As do not done the process of PTFE waterproof ventilated membrane parcel to carbon dioxide probe, directly by the concentration of carbon dioxide in carbon dioxide probe measurement water, its result has two: concentration and the dividing potential drop that 1) cannot record carbon dioxide in water, because carbon dioxide does not enter the gas-detecting cavity of carbon dioxide probe in water, (i.e. selectivity diffusion can not be spread wherein, can only can not through hydrone through gas molecule), also just cannot reach mobile equilibrium with the carbon dioxide in water; 2) contrary, water can immerse carbon dioxide probe, causes probe inside to be damaged because of short circuit, and then causes data acquisition unit to damage.The PTFE waterproof ventilated membrane 3 adopted in the present invention wraps carbon dioxide probe, due to the size of PTFE waterproof ventilated membrane 3 micropore size, selectivity diffusion (can through gas molecule, and can not through hydrone) can be carried out to carbon dioxide molecule in water.Place a period of time in water after, the gas concentration lwevel and water gas concentration lwevel that make to enter into carbon dioxide probe test chamber are reached mobile equilibrium, reaches testing goal
Described control display 4 connects described carbon dioxide probe 1 by data line, for the test of control instrument and the data of display test.Described control display 4 comprises the button 10 of control instrument test and the display screen 11 of display test data.
The upper end of described pvc pipe 2 is connected with handle 7, be provided with described limbers 6 on the handle 7 and measure the scale 8 of described pvc pipe 2 lower end apart from the water surface degree of depth, when handle 7 being arranged limbers 6 mainly for testing under the very fast condition of water velocity, reduce the resistance of handle 7 pairs of current, cause degassed in order to avoid swash the foam of breaking waves, little with or without limbers impact on handle 7 under hydrostatic condition.Pvc pipe 2 needs to enter into distance water surface certain depth just can accurately measure water carbon dioxide probe partial pressure value, the degree of depth that pvc pipe 2 enters into the distance water surface can be held by the scale 8 observed on handle 7, ensure reliability and the comparability (because the hydraulic pressure at different water depth place is different by force, affecting the solubleness of gas) of measurement data.Be removably connected with extension rod 9 in the upper end of described handle 7, extension rod 9 be also provided with the scale 8 measuring the pvc pipe 2 lower end distance water surface degree of depth.The effect of extension rod 9 is: for some due to the higher measurement being not easy to be put into by instrument in water body of distance water surface elevation, the length deciding extension rod 9 is needed according to actual measurement, survey crew hand-held extension rod 9 part, inserts constant depth in water and just can complete measurement by the measure portion of instrument.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. partial pressure of carbon dioxide tester in a Portable water, it is characterized in that, comprise carbon dioxide probe (1), pvc pipe (2), PTFE waterproof ventilated membrane (3) and control display (4), plug (5) is provided with in the lower end of described pvc pipe (2), and on the sidewall of described pvc pipe (2), be distributed with limbers (6), described carbon dioxide probe (1) is in described pvc pipe (2), outside described carbon dioxide probe (1), be provided with PTFE waterproof ventilated membrane (3) described in one deck;
Described control display (4) connects described carbon dioxide probe (1) by data line, for the test of control instrument and the data of display test.
2. partial pressure of carbon dioxide tester in a kind of Portable water according to claim 1, it is characterized in that, the upper end of described pvc pipe (2) is connected with handle (7), described handle (7) is also provided with described limbers (6) and measures the scale (8) of described pvc pipe (2) lower end apart from the water surface degree of depth.
3. partial pressure of carbon dioxide tester in a kind of Portable water according to claim 2, is characterized in that, the diameter of described limbers (6) is 6mm.
4. partial pressure of carbon dioxide tester in a kind of Portable water according to claim 2, it is characterized in that, be removably connected with extension rod (9) in the upper end of described handle (7), described extension rod (9) be also provided with the scale (8) measuring described pvc pipe (2) the lower end distance water surface degree of depth.
5. partial pressure of carbon dioxide tester in a kind of Portable water according to any one of Claims 1-4, it is characterized in that, described control display (4) comprises the button (10) of control instrument test and the display screen (11) of display test data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510600274.9A CN105136712A (en) | 2015-09-17 | 2015-09-17 | Portable tester for partial pressure of carbon dioxide in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510600274.9A CN105136712A (en) | 2015-09-17 | 2015-09-17 | Portable tester for partial pressure of carbon dioxide in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105136712A true CN105136712A (en) | 2015-12-09 |
Family
ID=54722139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510600274.9A Pending CN105136712A (en) | 2015-09-17 | 2015-09-17 | Portable tester for partial pressure of carbon dioxide in water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105136712A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114444253A (en) * | 2021-11-26 | 2022-05-06 | 中林信达（北京）科技信息有限责任公司 | Method for estimating partial pressure of carbon dioxide in lake water body |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998003855A1 (en) * | 1996-07-05 | 1998-01-29 | Sievers Instruments, Inc. | Carbon monitoring system for water treatment and purification |
| WO2006020799A2 (en) * | 2004-08-12 | 2006-02-23 | Baker Hughes Incorporated | A method and apparatus for downhole detection of co2 and h2s using resonators coated with co2 and h2s sorbents |
| CN202033357U (en) * | 2010-11-03 | 2011-11-09 | 中国科学院新疆生态与地理研究所 | Root system CO2 in-situ automatic measuring device |
| CN202814908U (en) * | 2012-10-10 | 2013-03-20 | 郑州光力科技股份有限公司 | Oxygen density detection device |
| CN104122223A (en) * | 2014-08-07 | 2014-10-29 | 中国科学院上海微系统与信息技术研究所 | Double-optical-path multi-gas infrared sensor |
| CN203981582U (en) * | 2014-07-01 | 2014-12-03 | 上海申渭电子科技有限公司 | CO in a kind of measurement liquid 2the sensor of gas concentration |
| CN204903392U (en) * | 2015-09-17 | 2015-12-23 | 中国地质科学院岩溶地质研究所 | Portable aquatic carbon dioxide partial pressure tester |
-
2015
- 2015-09-17 CN CN201510600274.9A patent/CN105136712A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998003855A1 (en) * | 1996-07-05 | 1998-01-29 | Sievers Instruments, Inc. | Carbon monitoring system for water treatment and purification |
| WO2006020799A2 (en) * | 2004-08-12 | 2006-02-23 | Baker Hughes Incorporated | A method and apparatus for downhole detection of co2 and h2s using resonators coated with co2 and h2s sorbents |
| CN202033357U (en) * | 2010-11-03 | 2011-11-09 | 中国科学院新疆生态与地理研究所 | Root system CO2 in-situ automatic measuring device |
| CN202814908U (en) * | 2012-10-10 | 2013-03-20 | 郑州光力科技股份有限公司 | Oxygen density detection device |
| CN203981582U (en) * | 2014-07-01 | 2014-12-03 | 上海申渭电子科技有限公司 | CO in a kind of measurement liquid 2the sensor of gas concentration |
| CN104122223A (en) * | 2014-08-07 | 2014-10-29 | 中国科学院上海微系统与信息技术研究所 | Double-optical-path multi-gas infrared sensor |
| CN204903392U (en) * | 2015-09-17 | 2015-12-23 | 中国地质科学院岩溶地质研究所 | Portable aquatic carbon dioxide partial pressure tester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114444253A (en) * | 2021-11-26 | 2022-05-06 | 中林信达（北京）科技信息有限责任公司 | Method for estimating partial pressure of carbon dioxide in lake water body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yoon et al. | Assessing gas equilibration systems for continuous pCO 2 measurements in inland waters | |
| CN203881678U (en) | Portable SF6 detection device underground coal mine | |
| CN203224388U (en) | Static box for measuring animal waste greenhouse gas emission rate | |
| Delwiche et al. | A novel optical sensor designed to measure methane bubble sizes in situ | |
| US20190346416A1 (en) | Scanned 1-D gas analysis camera having a line pixel weighted for wind speed | |
| US20140260528A1 (en) | Detecting contamination | |
| WO2016182885A3 (en) | Apparatus for determining nitrate levels, and method for measuring ion concentration with a standard deviation correction | |
| CN108020589A (en) | A kind of detection method of Calcium in Seawater ion | |
| CN104007041B (en) | Coal seam hydrogen sulfide content determinator | |
| Xu et al. | Effective utilization of tracer gas in characterization of underground mine ventilation networks | |
| Pencharee et al. | Underway determination of dissolved inorganic carbon in estuarine waters by gas-diffusion flow analysis with C 4 D detection | |
| CN204903392U (en) | Portable aquatic carbon dioxide partial pressure tester | |
| CN105136712A (en) | Portable tester for partial pressure of carbon dioxide in water | |
| CN106290515B (en) | The self calibration ocean multi-parameter chemical sensor of micro-fluidic replaceable cavity body structure | |
| CN104198538B (en) | Boat-carrying walks navigation water dissolution DIC observation device and method | |
| CN203981582U (en) | CO in a kind of measurement liquid 2the sensor of gas concentration | |
| CN106771027B (en) | Ocean dissolved inorganic carbon in situ measurement instrument | |
| CN2879185Y (en) | Heat-salt self-detecting instrument | |
| CN106153265A (en) | A kind of hand held gas leak device for fast detecting | |
| CN202676589U (en) | Portable rapid detecting and identifying equipment for mine water source | |
| CN103743445A (en) | Oxygen flow concentration detection device | |
| CN104569105A (en) | Copper ion-selective electrode and method for measuring copper ion concentration by using copper ion-selective electrode | |
| AU2012211379A1 (en) | System and Method for monitoring unsaturated zone gas and near-surface atmosphere in real time by using isotope analyzer | |
| Farrell et al. | Soil air | |
| JP2008292437A (en) | Carbon dioxide fugacity sensor for sea water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |