CN204903392U - Portable aquatic carbon dioxide partial pressure tester - Google Patents
Portable aquatic carbon dioxide partial pressure tester Download PDFInfo
- Publication number
- CN204903392U CN204903392U CN201520728969.0U CN201520728969U CN204903392U CN 204903392 U CN204903392 U CN 204903392U CN 201520728969 U CN201520728969 U CN 201520728969U CN 204903392 U CN204903392 U CN 204903392U
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- CN
- China
- Prior art keywords
- carbon dioxide
- partial pressure
- pvc pipe
- test
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a portable aquatic carbon dioxide partial pressure tester, including carbon dioxide probe, PVC pipe, the waterproof ventilated membrane of PTFE and controlling display the lower extreme of PVC pipe is equipped with the end cap, and it has the limbers to distribute on the lateral wall of PVC pipe, the carbon dioxide probe is in PVC is intraductal the outer one deck that is equipped with of carbon dioxide probe the waterproof ventilated membrane of PTFE, the controlling display number of pass is according to the line connection the carbon dioxide probe for the test of control instrument and the data of demonstration test. The utility model provides a pair of portable aquatic carbon dioxide partial pressure tester, this instrument easy operation, small in size portable to the test is accurate, quick, can carry out the on -the -spot test to the carbon dioxide partial pressure in the various waters in field.
Description
Technical field
The utility model relates to surveying instrument field, is 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 HCO
3 -, 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.
Utility model content
In sum, for solving existing technical matters, the utility model 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 utility model 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 beneficial effects of the utility model are: partial pressure of carbon dioxide tester in a kind of Portable water that the utility model provides, 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 utility model.
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 utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
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 utility model 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 utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
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 |
|---|---|---|---|
| CN201520728969.0U CN204903392U (en) | 2015-09-17 | 2015-09-17 | Portable aquatic carbon dioxide partial pressure tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728969.0U CN204903392U (en) | 2015-09-17 | 2015-09-17 | Portable aquatic carbon dioxide partial pressure tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204903392U true CN204903392U (en) | 2015-12-23 |
Family
ID=54925560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520728969.0U Expired - Fee Related CN204903392U (en) | 2015-09-17 | 2015-09-17 | Portable aquatic carbon dioxide partial pressure tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204903392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136712A (en) * | 2015-09-17 | 2015-12-09 | 中国地质科学院岩溶地质研究所 | Portable tester for partial pressure of carbon dioxide in water |
-
2015
- 2015-09-17 CN CN201520728969.0U patent/CN204903392U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136712A (en) * | 2015-09-17 | 2015-12-09 | 中国地质科学院岩溶地质研究所 | Portable tester for partial pressure of carbon dioxide in water |
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Legal Events
| 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: 20151223 Termination date: 20190917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |