DE1673040A1 - Device for measuring oxygen dissolved in water - Google Patents
Device for measuring oxygen dissolved in waterInfo
- Publication number
- DE1673040A1 DE1673040A1 DE19671673040 DE1673040A DE1673040A1 DE 1673040 A1 DE1673040 A1 DE 1673040A1 DE 19671673040 DE19671673040 DE 19671673040 DE 1673040 A DE1673040 A DE 1673040A DE 1673040 A1 DE1673040 A1 DE 1673040A1
- Authority
- DE
- Germany
- Prior art keywords
- water
- resistance
- reaction vessel
- thallium
- measuring oxygen
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims description 6
- 229910052760 oxygen Inorganic materials 0.000 title claims description 6
- 239000001301 oxygen Substances 0.000 title claims description 6
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 claims description 10
- 229910052716 thallium Inorganic materials 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000012777 electrically insulating material Substances 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/021—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance before and after chemical transformation of the material
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Description
Einrichtung zur iIessung von in Wasser gelöstem Sauerstoff Zusatz zu Patent (Patentanm. S 86 733 IXb/42 1) Das Hauptpatent (Patentanm. S 86 733 IXb/42l) betrifft eine Einrichtung zur Messung von in Wasser gelöstem Sauerstoff mit einem Thallium enthaltenden rohrfornigen Reaktionsgefäß, in dem die elektrische Leitfähigkeit des durchfließenden Wassers entsprechend dem Gehalt an gelöstem Sauerstoff sich erhöht. Um die bei Verwendung von metallischen Reaktionsgefä#en auftretende elektrolytische Zersetzung des Thalliums zu verhindern, ist im Hauptpatent angegeben, die Mande des Reaktionsgefä#es und gegebenenfalls s die Anachlußleitungen fUr das zu untersuchende Wasser aus elektrisch isolierenden Material herzustellen.Device for measuring oxygen additive dissolved in water to patent (Patent No. S 86 733 IXb / 42 1) The main patent (Patent No. S 86 733 IXb / 42l) relates to a device for measuring oxygen dissolved in water with a Thallium-containing tubular reaction vessel in which the electrical conductivity of the flowing water according to the content of dissolved oxygen elevated. In order to avoid the electrolytic Preventing the decomposition of thallium is specified in the main patent, the Mande of the reaction vessel and, if necessary, the connection lines for the to be examined Water out produce electrically insulating material.
Hierdurch wird die Bildung eines galvanischen Elementes aus Thalliumfiillung und den sonst metallischen Wänden des Reaktionsgefäßes und die damit verbundene Zersetzung des Thalliums weitgehend vermieden. Da aus konstruktiven Gründen und infolge der auftretenden Drücke nicht sämtliche Zuleitungen aus isolierendem Material wirtschaftlich herzustellen sind und um zu verhindern, daß die metallischen Bauteile des Gerätes mit der Thalliumfüllung in elektrolytische Wechselwirkung treten, wird als Weiterbildung der ini Hauptpatent beschriebenen Einrichtung und zur Erhöhung des damit erzielbaren Effektes vorgeschlagen, jeweils einen Teil der Anschlußleitungen für den Zu-und Abfluß als hochohmige Wasserwiderstandsstrecke auszubilden. Es hat sich als vorteilhaft herausgestellt, die Wasserwiderstandsstrecken in unmittelbarer Nähe des Reaktionsgefäßes anzuordnen und ihre Lange und ihre Querschnitte so zu bemessen, da# der elektrische Widerstand der in inhen befindlichen Wassersäule in der Grö#enordnung von 109 Ohm liegt. Der hohe Widerstand dieser Trennstrecken bewirkt, daß der Einfluß der metallischen Teile der Meßeinrichtung, die über das durchfließende Wasser mit dem Thallium in dem isolierten Reaktionsgefäß in Verbindung stehen, bezüglich ihrer elektrolytischen Wirkung verschwindend gering wird.This results in the formation of a galvanic element from thallium filling and the otherwise metallic walls of the reaction vessel and the associated ones Decomposition of the thallium largely avoided. Because for design reasons and due to the pressures that occur, not all supply lines are made of insulating material Are economical to manufacture and to prevent the metallic components of the device come into electrolytic interaction with the thallium filling as a further development of the facility described in the main patent and to increase it of the effect achievable therewith proposed, each part of the connecting lines for the inflow and outflow as a high-resistance water resistance section. It has proved to be advantageous, the water resistance sections in the immediate To be arranged near the reaction vessel and their length and cross-sections so too measured because # the electrical resistance of the water column in of the order of magnitude of 109 ohms. The high resistance of these isolating distances causes that the influence of the metallic parts of the measuring device over the flowing through Water with the thallium in the isolated reaction vessel in connection with respect their electrolytic effect is negligibly small.
In der Figur ist ein Ausführungsbeispiel eines mit den Erfindungsnerkmalen ausgestatteten Thalliumreaktionsgefäßes scheratisch dargestellt. Ein aus isolierendem Kunststoff bestel : endes Rohr 1 enthält in seinen Innern Thalliumspäne 2 und ist an seinen Enden mit ebenfalls aus Kunststoff bestelienden Sieben 3 versehen. An den beiden Enden des Rohres 1 befinden sich Anschlußstutzen 4 und 5 aus isolierendem Material, ait denen die das zu untersuchende, sauerstoffhaltige Wasser führende Zuleitung 6 bzw. die Ableitung 7 verbunden ist. Die Anschlußstutzen 4 und 5 enthalten lange dünne Durchgangsbohrungen 8 und 9, deren Länge und Durchmesser so bemessen ist, daß die darin befindliche Wassersäule einen elektrischen Widerstand in der Grö#enordnung von 109 Ohm aufweist. Damit wird verhindert, da# die metallischen Anschlu#leitungen 6 und 7 in galvanische Wechselwirkung mit den Thalliumspänen 2 treten.In the figure, an embodiment is one with the features of the invention equipped thallium reaction vessel shown schematically. One from insulating Plastic order: end tube 1 contains thallium chips 2 in its interior and is at its ends with sieves 3 which are also made of plastic. At the two ends of the tube 1 are connecting pieces 4 and 5 made of insulating Material that carries the oxygenated water to be investigated Feed line 6 or the discharge line 7 is connected. The connecting pieces 4 and 5 contain long thin through holes 8 and 9, the length and diameter of which are dimensioned is that the water column located therein has an electrical resistance in the Of the order of 109 ohms. This prevents the metallic Connection lines 6 and 7 in galvanic interaction with the thallium chips 2 step.
2 Patentansprüche 1 Bl. Zeichnungen2 claims 1 sheet. Drawings
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0111615 | 1967-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1673040A1 true DE1673040A1 (en) | 1971-09-02 |
Family
ID=7531079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19671673040 Pending DE1673040A1 (en) | 1967-08-31 | 1967-08-31 | Device for measuring oxygen dissolved in water |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1673040A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2631122A1 (en) * | 1988-05-04 | 1989-11-10 | Draegerwerk Ag | DEVICE FOR MEASURING GAS COMPONENTS IN THE STEAM OR AEROSOL CONDITION OF A GAS TO BE MEASURED |
-
1967
- 1967-08-31 DE DE19671673040 patent/DE1673040A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2631122A1 (en) * | 1988-05-04 | 1989-11-10 | Draegerwerk Ag | DEVICE FOR MEASURING GAS COMPONENTS IN THE STEAM OR AEROSOL CONDITION OF A GAS TO BE MEASURED |
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