AT99174B - Device for determining combustible components in gases. - Google Patents

Device for determining combustible components in gases.

Info

Publication number
AT99174B
AT99174B AT99174DA AT99174B AT 99174 B AT99174 B AT 99174B AT 99174D A AT99174D A AT 99174DA AT 99174 B AT99174 B AT 99174B
Authority
AT
Austria
Prior art keywords
gases
wire
combustible components
diameter
determining
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT99174B publication Critical patent/AT99174B/en

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  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Vorrichtung zur Bestimmung von brennbaren Bestandteilen in Gasen. 



   Es ist bekannt, zur Bestimmung des Gehaltes an brennbaren Gasen das zu untersuchende Gasgemisch an einem elektrisch geheizten Metalldraht vorbeistreichen zu lassen. Die Temperatur des Drahtes 
 EMI1.1 
 der ziemlich hohen Temperatur, auf die er erhitzt wird, leicht reisst. 



   Gemäss der Erfindung wird der Draht daher zu einer Schraube aufgewickelt, die so   fe'n   ist, dass der schraubendurchmesserin der Grössenordnung des Durchmessers des Drahtesselbst liegt, also nicht grösser ist als etwa das Vierfache des Drahtdurchmessers. Eine derartige Schraube strahlt, wie die Technik 
 EMI1.2 
 der Schraube sich gegenseitig heizen. Man kommt daher mit geringerer Energie aus, oder man kann, und darin liegt der Hauptvorteil, ohne die elektrische Energie erhöhen zu müssen, den Durchmesser des Drahtes vergrössern. Die so erzielte   Durchmesservergrösserung   genügt, um dem Draht die Lebensdauer zu geben, die ihn erst praktisch verwertbar macht.

   Ausserdem hat die Schraube aus dem stärkeren Draht eine erhebliche elastische Dehnung und ermöglicht seine Ausspannung in der Messkammer unter so grossem Zuge, dass die Achse der Schraube stets gradlinig bleibt. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Device for determining combustible components in gases.



   It is known to allow the gas mixture to be examined to sweep past an electrically heated metal wire in order to determine the content of combustible gases. The temperature of the wire
 EMI1.1
 the rather high temperature to which it is heated.



   According to the invention, the wire is therefore wound into a screw which is so fine that the screw diameter is of the order of magnitude of the diameter of the wire itself, i.e. not greater than approximately four times the wire diameter. Such a screw shines like the technology
 EMI1.2
 the screw heat each other. You can get by with less energy, or you can, and this is the main advantage, without having to increase the electrical energy, to increase the diameter of the wire. The increase in diameter achieved in this way is sufficient to give the wire the service life that makes it usable in practice.

   In addition, the screw made from the thicker wire has a considerable elastic expansion and enables it to be unclamped in the measuring chamber with such a great pull that the axis of the screw always remains straight.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Vorrichtung zur Bestimmung von brennbaren Bestandteilen in Gasen mit Hilfe eines elektrisch geheizten Metalldrahtes, an dem das zu untersuchende Gasgemisch vorbeigeführt wird, dadurch gekennzeichnet, dass der Draht zu einer Schraube aufgewickelt ist, deren Durchmesser nicht grösser ist als das Vierfache des Drahtdurchmessers. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Device for determining combustible components in gases with the help of an electrically heated metal wire, past which the gas mixture to be examined is passed, characterized in that the wire is wound into a screw whose diameter is not greater than four times the wire diameter. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT99174D 1922-09-04 1923-01-29 Device for determining combustible components in gases. AT99174B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE99174X 1922-09-04

Publications (1)

Publication Number Publication Date
AT99174B true AT99174B (en) 1925-02-10

Family

ID=5647075

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99174D AT99174B (en) 1922-09-04 1923-01-29 Device for determining combustible components in gases.

Country Status (1)

Country Link
AT (1) AT99174B (en)

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