DE398865C - Mercury vapor rectifier - Google Patents

Mercury vapor rectifier

Info

Publication number
DE398865C
DE398865C DEA40054D DEA0040054D DE398865C DE 398865 C DE398865 C DE 398865C DE A40054 D DEA40054 D DE A40054D DE A0040054 D DEA0040054 D DE A0040054D DE 398865 C DE398865 C DE 398865C
Authority
DE
Germany
Prior art keywords
mercury vapor
rectifier
vapor rectifier
inner walls
anodes
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
DEA40054D
Other languages
German (de)
Inventor
Christian Kraemer
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.)
AEG AG
Original Assignee
AEG 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 AEG AG filed Critical AEG AG
Priority to DEA40054D priority Critical patent/DE398865C/en
Application granted granted Critical
Publication of DE398865C publication Critical patent/DE398865C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
    • H01J13/02—Details
    • H01J13/24—Vessels; Containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
    • H01J13/02—Details
    • H01J13/48—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

Landscapes

  • Paints Or Removers (AREA)

Description

Quecksilberdampfgleichrichter. Quecksilberdampfgleichrichter für größere Leistungen neigen leicht zum Versagen durch Rückzündungen. Die Rückzündung entsteht bekanntlich durch ein Versagen der Ventilwirkung, so d!aß ein unmittelbarer Kurzschluß zwischen Anode und Kathode auftritt. Dies Versagen rührt daher, daß der negative Glimmstrom an der Anode, während sie negativ aufgeladen ist, zu hoch wird, sich an gewissen Punkten konzentriert und' dann aus der Glimmentladung zur Bogenentladung umschlägt. Die Größe des negativen Glimmstromes, d. h. das Austreten negativer Elektronen aus dem Metall, wird begünstigt durch ultraviolette Strahlen, an- denen bekanntlich der Lichtbogen des Ouecksilberdampfgleichrichters und besonders der Kathodenfleck sehr reich sind. Man hat daher dafür gesorgt, daß die Anoden vor diesen Strahlen mcglichst abgeschirmt werden, d. h. d'aß die Anoden aus der Sichtlinie des Kathodenfleckes kamen. Dies allein genügte jedoch nicht vollkommen. Trotz weitgehender Abschirmung traten immer noch Rückzündungen auf, besonders bei hoher Stromstärke, weil bisher keine Rücksicht auf die Reflexion dieser Strahlen genommen wurde. Durch Reflexion an den Wänden des Gleichrichtergefäßes können immer noch genügend ultraviolette Strahlen auf die Anoden fallen und dort negative Elektroden auslösen. Erfindungsgemäß wird dies dadurch wermieden, daß die Wände einen Überzug oder Anstrich mit geeigneten Stoffen erhalten, welche die ultravioletten Strahlen verschlukken. Derartige Stoffe sind z. B. Ruß oder Zinkweiß. Es kann aber auch jeder andere beliebige Stoff sein, der die verlangte Eigenschaft besitzt. Diese Stoffe können mit irgendeinem Bindemittel zu einer Anstrichfarbe gemengt werden. Als Bindemittel eignen sich am besten anorganische Bindemittel, z. B. Wasserglas, aber auch andere wärmebeständige organische Bindemittel, wie z. B. Bakelit, können verwendet werden.Mercury vapor rectifier. Mercury vapor rectifier for larger ones Services tend to fail due to re-ignition. The flashback occurs as is well known, due to a failure of the valve action, so there was an immediate short circuit occurs between anode and cathode. This failure stems from the negative Glow current at the anode, while it is negatively charged, becomes too high itself concentrated at certain points and then from the glow discharge to the arc discharge turns over. The size of the negative glow current, i.e. H. the leakage of negative electrons from the metal, is favored by ultraviolet rays, which are known to be the arc of the mercury vapor rectifier and especially the cathode spot are very rich. It has therefore been ensured that the anodes are protected from these rays be shielded as much as possible, d. H. d'ass the anodes out of sight of the cathode spot came. However, this alone was not entirely sufficient. Despite extensive shielding Backfires still occurred, especially with high amperage, because so far no consideration was given to the reflection of these rays. Through reflection there can still be enough ultraviolet on the walls of the rectifier vessel Rays fall on the anodes and trigger negative electrodes there. According to the invention this is wermieden that the walls a coating or painting with suitable Get substances that swallow the ultraviolet rays. Such substances are z. B. soot or zinc white. But it can also be any other material, who has the required property. These fabrics can be mixed with any binder be mixed into a paint. Inorganic binders are best suited as binders Binders, e.g. B. water glass, but also other heat-resistant organic binders, such as B. Bakelite can be used.

Claims (1)

PATENT ANSPr2CcIrE: r. Ouecksilberdampfgleichrichter, bei welchem die Anoden außerhalb der unmittelbaren Sichtlinie des Kathodenflecks liegen, :dadurch gekennzeichnet, däß' die Innenwände des Gleichrichtergefäßes mit einem Überzug oder Anstrich von Stoffen versehen sind, welche die ultravioletten Strahlen stark absorbieren und nur @in geringem Maße reflektieren. a. Ouecksilberdampfgleichriehter nach Anspruch r, dadurch gekennzeichnet; daß die Innenwände mit einem Anstrich aus einer Mischung von Ruß oder Zinkweiß mit einem Bindemittel versehen sind.PATENT ANSPr2CcIrE: r. Mercury vapor rectifier, in which the anodes are out of the immediate line of sight of the cathode spot,: thereby characterized, that 'the inner walls of the rectifier vessel with a coating or Painted on fabrics that strongly absorb ultraviolet rays and only reflect @ to a small extent. a. Mercury vapor alignment device according to claim r, characterized; that the inner walls with a paint of a mixture carbon black or zinc white are provided with a binding agent.
DEA40054D 1923-06-02 1923-06-02 Mercury vapor rectifier Expired DE398865C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA40054D DE398865C (en) 1923-06-02 1923-06-02 Mercury vapor rectifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA40054D DE398865C (en) 1923-06-02 1923-06-02 Mercury vapor rectifier

Publications (1)

Publication Number Publication Date
DE398865C true DE398865C (en) 1924-07-25

Family

ID=6931735

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA40054D Expired DE398865C (en) 1923-06-02 1923-06-02 Mercury vapor rectifier

Country Status (1)

Country Link
DE (1) DE398865C (en)

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