CN101699254A - Device for removing inorganic carbon in sea water - Google Patents
Device for removing inorganic carbon in sea water Download PDFInfo
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- CN101699254A CN101699254A CN200910229793A CN200910229793A CN101699254A CN 101699254 A CN101699254 A CN 101699254A CN 200910229793 A CN200910229793 A CN 200910229793A CN 200910229793 A CN200910229793 A CN 200910229793A CN 101699254 A CN101699254 A CN 101699254A
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- cavity
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- gas
- inorganic carbon
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Abstract
The invention discloses a device for being used on an analytical instrument and removing inorganic carbon in sea water, which comprises a cylindrical cavity, a gas outlet and a gas inlet positioned at the upper end and the lower end of the cavity respectively, a sand core positioned at the upper part of the gas inlet in the cavity, a sample inlet and a reaction reagent inlet positioned at the upper part of the cavity, a water sample outlet and a waste liquid outlet positioned at the lower part of the cavity, as well as a high liquid level electrode, a middle liquid level electrode, a low liquid level electrode and a null position electrode for controlling the liquid level. The device can remove interference gas in a water sample to be tested, in particular to being applicable to removing the inorganic carbon in the sea water, and the device can also be used for determining the components of the generated gas and be applied in the precision analytical instrument for realizing the on-line removal of the interference gas in the liquid phase; and the device has the advantages of small volume, simple structure, low operation cost and broad range of applications and can be applicable to the sea water and other water qualities.
Description
Technical field
The present invention relates to a kind of device that is used for removing the seawater inorganic carbon.
Background technology
In the process of water analysis, need to remove the interference gas in the water sample to be measured sometimes, perhaps need to measure the gas that exists in the water sample.As measure in the seawater organic the time, because the concentrations of inorganic carbon in the seawater is higher, be dozens or even hundreds of times of organic carbon concentration, therefore, the inorganic carbon in the water sample must be removed the concentration that could accurately measure organic carbon.Usually the inorganic carbon in the water sample need be converted into volatile gas and remove, generally be with acid water sample to be acidified between pH2～3, and with high pure nitrogen or high purity oxygen gas bubbling a period of time, the carbon dioxide that acidifying is produced blows out.The organism analytic system that liquid behind the removal inorganic carbon just can enter the back.Simultaneously, the carbon dioxide that acidifying produces also can be measured out, thereby obtains the concentration of inorganic carbon in the water sample.
Summary of the invention
At the demand, the purpose of this invention is to provide the device of inorganic carbon in a kind of simple in structure, removal seawater that operating cost is cheap.
The water sample that the present invention includes circular cylindrical cavity, lays respectively at the up and down injection port on gas outlet and air intake opening, the core that is positioned at cavity air intake opening top, the cavity top at two ends and reaction reagent import of cavity, cavity bottom exports and waste liquid outlet.
The present invention also comprises the high liquid level (HLL) electrode of controlling liquid level, middle liquid level electrode, low liquid level electrode and null electrode.
The course of work of the present invention is as follows: sample enters the position of cavity to middle liquid level electrode by injection port, add reaction reagent from the reaction reagent import then, continue subsequently to add the position of sample to the high liquid level (HLL) electrode, at this moment the air intake opening from the bottom begins to blast gas to cavity.After a period of time, close air intake opening at bubbling, the water sample of having removed interference gas exports the analytic system that enters the back by water sample.After sample introduction finished, the solenoid valve on the waste liquid outlet was opened, the beginning effluent discharge, and closed electromagnetic valve when liquid level is positioned at low liquid level electrode height, waste discharge stops.
The present invention can remove the interference gas in the water sample to be measured, especially is fit to remove the inorganic carbon in the seawater, also can measure the gas componant of generation, can be applied to accurate analytical instrument, realizes the interference gas in the online removal liquid phase; It is little to have volume, simple in structure, and operating cost is lower, and the advantage of applied range goes for seawater and other water quality.By outer connected control system, can realize that the automatic on-line of chemical reaction carries out, have promotional value widely.
Description of drawings
Fig. 1 is a structural representation of the present invention.
1, cavity; 2, air intake opening; 3, gas outlet; 4, injection port; 5, reaction reagent import; 6, core; 7, water sample outlet; 8, waste liquid outlet; 9, high liquid level (HLL) electrode; 10, middle liquid level electrode; 11, low liquid level electrode; 12, null electrode.
Embodiment
Further specify the present invention below in conjunction with accompanying drawing and by instantiation.
As shown in Figure 1, sampling device (not drawing among the figure) by the place ahead pumps into the position of testing sample to middle liquid level electrode 10 from injection port 4 to cavity 1, add reaction reagent (phosphoric acid or hydrochloric acid) from reaction reagent import 5 then, continue in cavity 1, to add the position of sample subsequently to high liquid level (HLL) electrode 9, at this moment blast gas (high pure nitrogen) from air intake opening 2 beginnings to cavity, gas is broken up when the core 6 by the cavity bottom, can be more equably to the cavity bubbling.It is can mix more fully for reaction reagent and water sample that sample enters cavity at twice.After a period of time, air intake opening 2 is closed at bubbling, and the water sample of having removed interference gas is by water sample outlet 7 analytic systems that enter the back.After sample introduction finished, the solenoid valve that connects on the waste liquid outlet 8 was opened, the beginning waste discharge, and waste discharge outlet 8 is closed when liquid level arrives low liquid level electrode 11, and waste discharge stops, a loop ends.Null electrode 12 uses as contrast electrode, forms current path with high liquid level (HLL) electrode 9, middle liquid level electrode 10 and low liquid level electrode 11.Measure the gas componant carbon dioxide in the liquid phase if desired, then need be in the gas outlet 3 position connect gas analyzing apparatus.
Claims (2)
1. device of removing inorganic carbon in the seawater is characterized in that it comprises circular cylindrical cavity, the water sample that lays respectively at the cavity injection port on gas outlet and air intake opening, the core that is positioned at cavity air intake opening top, the cavity top at two ends and reaction reagent import up and down, cavity bottom exports and waste liquid outlet.
2. device according to claim 1 is characterized in that also comprising the high liquid level (HLL) electrode of controlling liquid level, middle liquid level electrode, low liquid level electrode and null electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102297933A CN101699254B (en) | 2009-11-06 | 2009-11-06 | Device for removing inorganic carbon in sea water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102297933A CN101699254B (en) | 2009-11-06 | 2009-11-06 | Device for removing inorganic carbon in sea water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101699254A true CN101699254A (en) | 2010-04-28 |
| CN101699254B CN101699254B (en) | 2011-07-27 |
Family
ID=42147717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102297933A Expired - Fee Related CN101699254B (en) | 2009-11-06 | 2009-11-06 | Device for removing inorganic carbon in sea water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101699254B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606432A (en) * | 2016-03-17 | 2016-05-25 | 中国石油大学(北京) | Pretreatment device for organic carbon content analysis |
-
2009
- 2009-11-06 CN CN2009102297933A patent/CN101699254B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606432A (en) * | 2016-03-17 | 2016-05-25 | 中国石油大学(北京) | Pretreatment device for organic carbon content analysis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101699254B (en) | 2011-07-27 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20131106 |