DE338569C - Electrode for electrically heated steam boiler - Google Patents

Electrode for electrically heated steam boiler

Info

Publication number
DE338569C
DE338569C DENDAT338569D DE338569DD DE338569C DE 338569 C DE338569 C DE 338569C DE NDAT338569 D DENDAT338569 D DE NDAT338569D DE 338569D D DE338569D D DE 338569DD DE 338569 C DE338569 C DE 338569C
Authority
DE
Germany
Prior art keywords
electrode
electrically heated
pipe sections
heated steam
steam boiler
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
Application number
DENDAT338569D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
Publication date
Application granted granted Critical
Publication of DE338569C publication Critical patent/DE338569C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/28Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/30Electrode boilers

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Description

Elektrode für elektrisch geheizte @ Dampfkessel. Um bei elektrisch geheizten Dampfkesseln mit eingebauten Elektroden :den Weg des elektrischen Stromes innerhalb des Kesselwassers einigermaßen festzulegen, ist es bekannt, den Übergang des Stromes ausschließlich auf die Elektroden zu beschränken, indem man insbesondere die Stromzuführungsleiter zu den Elektroden gegen das Kesselwasser isoliert. Zu diesem Zweck hat man bisher Röhren aus Glas, Quarz oder anderem keramischen Stoff über den Stromzuführungsdraht geschoben, welche vom Einführungsisolator bis zur Elektrode reichten. Derartige Isolierröhren haben aber den Nachteil, daß sie unnachgiebig sind und daher leicht brechen, und daß ferner an bestimmten Stellen, vor allem an der Stelle der Wasseroberfläche, Korrosionen auftreten, wodurch die ganze Röhre öfters erneuert werden muß.Electrode for electrically heated @ steam boilers. To with electric heated steam boilers with built-in electrodes: the path of electric current It is known to set the transition within the boiler water to some extent to limit the current exclusively to the electrodes, in particular the power supply conductors to the electrodes are insulated from the boiler water. to tubes made of glass, quartz or other ceramic material have hitherto been used for this purpose pushed over the power supply wire, which extends from the lead-in insulator to the Electrode was enough. Such insulating tubes have the disadvantage that they are intransigent are and therefore break easily, and that also in certain places, especially at the body of the water surface, corrosion occurs, causing the whole tube often has to be renewed.

NTach der Erfindung wird die Isolierung der Elektrodenzuleitung durch aneinandergereihte kurze Rohrstücke bewirkt, (die in mehreren Lagen derart konzentrisch übereinander gestülpt werden, daß durch .die äußere Lage die Stoßstellen der inneren Lage überdeckt werden.According to the invention, the insulation of the electrode lead is through short pieces of pipe lined up in a row (which are so concentric in several layers be put on top of each other that .the outer layer, the joints of the inner Layer to be covered.

In der Zeichnung ist ein Ausführungsbeispiel für die Erfindung dargestellt. Der Elektrode a wird Strom 'durch die Metallstange b zugeführt, die bei e in die Metallklappe d eingeschraubt ist. Diese ist mit der Klemme e versehen und bedeckt die äußere Öffnung des Einführungsisolators f, gegen den sie mittels der Stopfbüchse g gedichtet ist. Die Kappe d selbst ist mittels isolierter Stehbolzen h an :der Kessel-,vand h befestigt, ,die ihrerseits mittels der Stopfbüchse i gegen den Einführungsisolator f gedichtet ist. Auf die Zuführungsstange b sind erfindungsgemäß zwei konzentrische Lagen von kurzen Isolierröhren in, ii geschoben, derart, daß ihre Stoßstellen sich überdecken. Die oberste Isolierröhre ragt in das Innere des Isolators f hinein.In the drawing, an embodiment of the invention is shown. The electrode a is supplied with current 'through the metal rod b , which is screwed into the metal flap d at e. This is provided with the terminal e and covers the outer opening of the lead-in insulator f, against which it is sealed by means of the stuffing box g. The cap d itself is attached to the boiler wall h by means of insulated stud bolts h , which in turn is sealed against the inlet insulator f by means of the stuffing box i. According to the invention, two concentric layers of short insulating tubes in, ii are pushed onto the feed rod b in such a way that their joints overlap. The uppermost insulating tube protrudes into the interior of the insulator f.

Wenn zwei Lagen derartiger Röhren nicht genügen, können drei oder mehr Lagen verwendet werden.If two layers of such tubes are not enough, three or more layers can be used.

Claims (1)

PATENT-ANsPRÜCHE: i. Elektrode für elektrisch geheizte Dampfkessel mit innerhalb des Kessels isolierter Zuleitung, dadurch gekennzeichnet, daß die Zuleitung durch mehrere konzentrische Lagen kurzer isolierender Rohrstücke isoliert ist, wobei die Stoßstellen zwischen den Rohrstücken der inneren Lage von den Rohrstücken der nächsten äußeren Lage überdeckt werden. z. Elektrode nach Patentanspruch i, dadurch gekennzeichnet, daß die der Kesselwand am nächsten liegenden isolierenden Rohrstücke in Iden Einführungsisolator der betreffenden Elektrode, hineinragen.PATENT CLAIMS: i. Electrode for electrically heated steam boilers with insulated supply line within the boiler, characterized in that the Supply line isolated by several concentric layers of short insulating pipe sections is, the joints between the pipe sections of the inner layer of the pipe sections the next outer layer must be covered. z. Electrode according to claim i, characterized in that the insulating ones lying closest to the boiler wall Pipe sections protrude into the lead-in insulator of the electrode in question.
DENDAT338569D Electrode for electrically heated steam boiler Expired DE338569C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE338569T

Publications (1)

Publication Number Publication Date
DE338569C true DE338569C (en) 1921-06-30

Family

ID=6222693

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT338569D Expired DE338569C (en) Electrode for electrically heated steam boiler

Country Status (1)

Country Link
DE (1) DE338569C (en)

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