DE539351C - Mercury vapor rectifier with a displacer which is fixed or floating inside the cathode and which is covered on its flat side facing the arc by a thin layer of mercury that is in contact with the rest of the cathode mercury - Google Patents
Mercury vapor rectifier with a displacer which is fixed or floating inside the cathode and which is covered on its flat side facing the arc by a thin layer of mercury that is in contact with the rest of the cathode mercuryInfo
- Publication number
- DE539351C DE539351C DES91737D DES0091737D DE539351C DE 539351 C DE539351 C DE 539351C DE S91737 D DES91737 D DE S91737D DE S0091737 D DES0091737 D DE S0091737D DE 539351 C DE539351 C DE 539351C
- Authority
- DE
- Germany
- Prior art keywords
- mercury
- cathode
- displacer
- rest
- thin layer
- 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
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
- H01J13/04—Main electrodes; Auxiliary anodes
- H01J13/06—Cathodes
- H01J13/14—Cooling, heating, circulating, filtering, or controlling level of the liquid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0072—Disassembly or repair of discharge tubes
- H01J2893/0073—Discharge tubes with liquid poolcathodes; constructional details
- H01J2893/0074—Cathodic cups; Screens; Reflectors; Filters; Windows; Protection against mercury deposition; Returning condensed electrode material to the cathodic cup; Liquid electrode level control
- H01J2893/0075—Cathodic cups
- H01J2893/0081—Cooling means
Landscapes
- Discharge Lamp (AREA)
Description
AUSGEGEBEN AM
25. NOVEMBER 1931ISSUED ON
NOVEMBER 25, 1931
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
M539351 KLASSE 21 g GRUPPE M 539351 CLASS 21 g GROUP
Schicht'Quecksilber bedeckt istLayer of mercury is covered
Die Erfindung betrifft einen Quecksilberdampfgleichrichter mit einem innerhalb der Kathode fest oder schwimmend angeordneten Verdrängerkörper, der an seiner dem Lichtbogen zugewendeten flachen Seite von einer dünnen, mit dem übrigen Kathodenquecksilber in Verbindung stehenden Schicht Quecksilber bedeckt ist. Bei derartigen Gleichrichtern macht es Schwierigkeiten, den Lichtbogenansatz so ausreichend zu kühlen, daß eine übermäßige Erwärmung der Quecksilberoberfläche und damit eine zu heftige Dampfentwicklung vermieden wird.The invention relates to a mercury vapor rectifier with an inside the Cathode fixed or floating displacer, which is attached to the arc facing flat side of a thin, with the rest of the cathode mercury related layer of mercury is covered. In such rectifiers it makes difficulties To cool the arc approach so sufficiently that excessive heating of the mercury surface and so that excessive steam development is avoided.
Gemäß der Erfindung wird dieser Nachteil der bisherigen Einrichtungen dadurch beseitigt, daß der Verdrängerkörper die Gestalt eines mit seiner Spitze dem Behälterboden zugekehrten Kegels aufweist und eine die dünne Ouecksilberschicht mit dem übrigen Kathodenquecksilber verbindende zentrale Durchtrittsöffnung (Bohrung) hat.According to the invention, this disadvantage of the previous devices is eliminated by that the displacement body has the shape of a with its tip facing the container bottom Has cone and a thin layer of mercury with the rest of the cathode mercury connecting central passage opening (bore).
Diese Ausbildung der neuen Kathode bietet den Vorteil, daß sich in dem Kathodenquecksilber besonders günstige Strömungen ausbilden. Durch die die dünne Ouecksilberschicht mit dem übrigen Quecksilber verbindende Bohrung vermag stets aus dem kältesten Teil der Kathode Quecksilber nach oben zu steigen, so daß eine Überhitzung des Quecksilbers in der dünnen Schicht nicht eintritt. Die nach oben gekehrte Basis des Verdrängerkegels ist vorzugsweise mit einer Schicht aus schwer schmelzbarem, die Wärme gut leitendem Material belegt, dessen spezifisches Gewicht gegebenenfalls so groß ist, daß dieser Belag gleichzeitig als Belastungsgewicht für den Verdrängerkörper dient. Der Belag kann beispielsweise aus Wolfram bestehen. This design of the new cathode offers the advantage that there is mercury in the cathode develop particularly favorable currents. Through the thin silver layer The bore connecting the rest of the mercury can always mercury upwards from the coldest part of the cathode to rise so that overheating of the mercury in the thin layer does not occur. The upturned base of the displacer cone is preferably covered with a layer of difficult-to-melt heat a material with good conductivity, the specific weight of which may be so great, that this covering also serves as a loading weight for the displacement body. Of the The coating can consist of tungsten, for example.
In der Zeichnung ist ein Ausführungsbeispiel dargestellt.An exemplary embodiment is shown in the drawing.
In dem Kathodenquecksilber α schwimmt ein auf seiner Spitze stehender Eisenkegel b, der an seiner Basis mit einer aus schwer schmelzbarem Metall (Wolfram, Molybdän) bestehenden Platte c belegt ist. Auf der Platte c befindet sich ein Isolierrohr d. Der ganze Körper ist im Gewicht so abgeglichen, daß er im Quecksilber schwimmt und dabei die Platte c dicht unter der Ouecksilberoberfläche liegt. Der Kathodenboden e ist der Form des Schwimmkegels angepaßt und wird von Kühlwasser f bespült. Das Kathodenquecksilber α steht durch eine Bohrung g- desIn the cathode mercury α, an iron cone b stands on its tip and is covered at its base with a plate c made of difficult-to-melt metal (tungsten, molybdenum). On the plate c there is an insulating tube d. The weight of the whole body is balanced in such a way that it floats in the mercury and the plate c lies just below the surface of the mercury. The cathode base e is adapted to the shape of the floating cone and is flushed with cooling water f. The cathode mercury α stands through a hole g- des
■~J Von dem Patentsucher ist als der Erfinder angegeben worden:The following has been indicated by the patent seeker as the inventor:
Dipl.-Ing. Gerhard Hagedon in Berlin-Wilmersdorf.Dipl.-Ing. Gerhard Hagedon in Berlin-Wilmersdorf.
Eisenkegels mit dem oberen Teil des Kathodenbodens c in Verbindung, auf dem sich eine dünne Schicht Quecksilber Ct1 ausbreitet.Iron cone in connection with the upper part of the cathode base c , on which a thin layer of mercury Ct 1 spreads.
Das an der Unterseite des Schwimmers erwärmte Quecksilber steigt nach dem Rande des Kegels empor und sinkt, sich an dem Kathodenboden e abkühlend, herab. Derartige Kreisströmungen führen bekanntlich sehr erhebliche Wärmemengen mit sich.The mercury heated on the underside of the float rises towards the edge of the cone and sinks, cooling down on the cathode base e. It is known that such circular currents entail very considerable amounts of heat.
ίο Außer Bohrungen in der Mitte des Verdrängerkörpers können auch an dessen Rand Bohrungen . oder Aussparungen vorhanden sein. Da die Randzone des Quecksilbers während des Betriebes des Gleichrichters stärker erhitzt wird als die mittleren Zonen, wird bei dieser Anordnung der Aussparungen eine solche Strömung entstehen, daß das gekühlte Quecksilber am Rande von unten aufsteigt und im Kreislauf über den Kathodenspiegel, durch die in der Mitte des Verdrängerkörpers befindliche Bohrung herabsinkend, wieder nach unten zurückgeführt wird.ίο Except for holes in the middle of the displacer can also drill holes on its edge. or recesses exist. Because the edge zone of the mercury during operation of the rectifier is heated more strongly than the middle zones, With this arrangement of the recesses, such a flow will arise that the cooled Mercury rises at the edge from below and circulates over the cathode mirror, descending through the hole in the center of the displacer, is guided back down again.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES91737D DE539351C (en) | 1929-05-17 | 1929-05-17 | Mercury vapor rectifier with a displacer which is fixed or floating inside the cathode and which is covered on its flat side facing the arc by a thin layer of mercury that is in contact with the rest of the cathode mercury |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES91737D DE539351C (en) | 1929-05-17 | 1929-05-17 | Mercury vapor rectifier with a displacer which is fixed or floating inside the cathode and which is covered on its flat side facing the arc by a thin layer of mercury that is in contact with the rest of the cathode mercury |
Publications (1)
Publication Number | Publication Date |
---|---|
DE539351C true DE539351C (en) | 1931-11-25 |
Family
ID=7516709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES91737D Expired DE539351C (en) | 1929-05-17 | 1929-05-17 | Mercury vapor rectifier with a displacer which is fixed or floating inside the cathode and which is covered on its flat side facing the arc by a thin layer of mercury that is in contact with the rest of the cathode mercury |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE539351C (en) |
-
1929
- 1929-05-17 DE DES91737D patent/DE539351C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE539351C (en) | Mercury vapor rectifier with a displacer which is fixed or floating inside the cathode and which is covered on its flat side facing the arc by a thin layer of mercury that is in contact with the rest of the cathode mercury | |
DE575295C (en) | Valve seats, valve guides, etc. made of beryllium alloy. Like., In particular for internal combustion engines | |
DE325941C (en) | X-ray tube | |
DE541300C (en) | Device for fixing the cathode spot in mercury vapor rectifiers, in which an insert provided with rust-like openings is provided in the cathode container, the surface of which is completely covered by the cathode mercury | |
DE628618C (en) | Highly emitting incandescent cathode, which consists of a carbon steel heating element and an emitting layer attached to the surface of the body | |
DE339153C (en) | Device for liquid cooling of rectifiers, which are tilted for ignition | |
DE481641C (en) | Electrothermal switch | |
DE974136C (en) | Method of manufacturing an evaporator | |
AT116649B (en) | Device for reducing the amount of steam in front of the anodes of mercury vapor rectifiers. | |
DE738870C (en) | Method and device for the production of beryllium, magnesium and alkaline earth metals by fused-salt electrolysis | |
DE632748C (en) | Metal vapor rectifier, in particular large-scale mercury vapor rectifier, with an insert body provided with openings and covering the cathode fluid towards the discharge space | |
DE46678C (en) | Liquid rheostats for electrical currents (MARCEL DEPREZ system) | |
DE590816C (en) | Electrode holder for electric ovens | |
AT119470B (en) | Electrode for alloying and refining metal baths. | |
DE413112C (en) | Wax container for shoe sewing machines | |
AT159261B (en) | Metal vapor converter with anode arms made of metal. | |
DE673474C (en) | Metal vapor converters, especially grid-controlled mercury vapor rectifiers | |
DE565129C (en) | Device for igniting a mercury vapor rectifier by means of an ignition arc introduced between an ignition electrode and mercury | |
DE457875C (en) | Electroplating drum for electroplating mass-produced items | |
DE399239C (en) | Surface capacitor | |
GB391984A (en) | Improvements in hard alloys | |
Bassett | Beryllium Copper Alloys | |
DE543766C (en) | Use of an alloy consisting of silicon and nickel for the production of castings | |
DE543954C (en) | Device for reducing the amount of steam in front of the anodes of mercury vapor rectifiers in metal housings | |
DE839683C (en) | Electrically heated mass cooking plate |