DE550408C - The use of an electric glow discharge lamp filled with dilute gases with the addition of mercury vapor, which is provided with a cover that is permeable to ultraviolet rays, for the photochemical activation of gases and liquids by means of ultraviolet radiation - Google Patents

The use of an electric glow discharge lamp filled with dilute gases with the addition of mercury vapor, which is provided with a cover that is permeable to ultraviolet rays, for the photochemical activation of gases and liquids by means of ultraviolet radiation

Info

Publication number
DE550408C
DE550408C DEG66467D DEG0066467D DE550408C DE 550408 C DE550408 C DE 550408C DE G66467 D DEG66467 D DE G66467D DE G0066467 D DEG0066467 D DE G0066467D DE 550408 C DE550408 C DE 550408C
Authority
DE
Germany
Prior art keywords
gases
glow discharge
mercury vapor
liquids
permeable
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
DEG66467D
Other languages
German (de)
Inventor
Dr Heinrich Geffcken
Dr Hans Richter
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.)
ELEK ZITAETS IND AG F
Original Assignee
ELEK ZITAETS IND AG F
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 ELEK ZITAETS IND AG F filed Critical ELEK ZITAETS IND AG F
Priority to DEG66467D priority Critical patent/DE550408C/en
Application granted granted Critical
Publication of DE550408C publication Critical patent/DE550408C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/64Cathode glow lamps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/92Lamps with more than one main discharge path
    • H01J61/94Paths producing light of different wavelengths, e.g. for simulating daylight

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Description

Die Verwendung einer mit verdünnten Gasen unter Beimengung von Quecksilberdampf gefüllten elektrischen Glimmentladungslampe, welche mit einer für ultraviolette Strahlen durchlässigen Hülle versehen ist, zur photochemischen Aktivierung von Gasen und Flüssigkeiten durch Ultraviolettbestrahlung Es ist bekannt, daß man in Gasen und Flüssigkeiten durch Ultraviolettbestrahlung chemische Wirkungen hervorrufen kann. Als eine der bekanntesten derartigen Wirkungen ist zunächst die Ozonisierung der Luft zu. nennen. Ferner hat in neuerer Zeit die Steri> lisierung von Wasser, die Lynoxydbildung in Öl sowie die antirachitische Vitaminisierung von Milch und anderen cholesterinhaltigeh Stoffen Bedeutung gewonnen. Die Bestrahlung wird dabei meistens mit Hilfe von Quarzlampen vorgenommen.The use of a diluted gas with the addition of mercury vapor filled electric glow discharge lamp with one for ultraviolet Radiation-permeable envelope is provided for the photochemical activation of gases and liquids by ultraviolet radiation. It is known that in gases and liquids cause chemical effects from exposure to ultraviolet radiation can. One of the best-known effects of this type is ozonization the air too. to name. Furthermore, the sterilization of water, the formation of Lynoxyd in oil as well as the anti-rachitic vitaminization of milk and other cholesterol-containing substances gained importance. The irradiation is thereby mostly done with the help of quartz lamps.

Die Erfindung betrifft Anlagen zur Erzeugung derartiger Wirkungen und besteht darin, daß bei ihnen als Strahlungsquelle Glimmentladungsröhren verwendet werden, die mit verdünnten Gasen unter `Beimengung von Quecksilberdampf gefüllt und mit einer für ultraviolette Strahlen durchlässigen Hülle (z. B. aus Quarz) versehen sind. Die Beimengung von Quecksilberdampf zum Trägergas einer Glimmentladung ist zwar an sich bekannt: Man hat sie z. B. zur Erniedrigung der .Zündspannung, zur - Farbkorrektur des ausgestrahlten - Lichtes u. dgl. m. benutzt. Die hohe chemische Aktivität der hierbei gleichzeitig entstehenden extrem ultravioletten StrahlüTig kam jedoch in den bisher ausschließlich benutzten Entladungsgefäßen aus Glas nicht zur Wirkung.The invention relates to systems for producing such effects and consists in the fact that they use glow discharge tubes as a radiation source which are filled with dilute gases with the addition of mercury vapor and provided with a covering (e.g. made of quartz) permeable to ultraviolet rays are. The admixture of mercury vapor to the carrier gas of a glow discharge is known per se: You have z. B. to lower the. Ignition voltage to - Color correction of the emitted - light and the like used. The high chemical Activity of the extremely ultraviolet radiation that occurs at the same time However, it did not come in the glass discharge vessels that were previously used exclusively to the effect.

Selbst bei Anwendung von Entladungsgefäßen aus Quarz u. dgl. besitzt eine Glimmentladung in den üblichen Trägergasen, insbesondere z. B. in Edelgas, nur eine sehr wenig photochemisch aktive Uitraviolettstrahlung. Sieht man in ihnen jedoch einen Quecksilberbodenkörper vor, der dafür sorgt, daß der Entladungsraum stets mit Quecksilberdampf gesättigt. bleibt, so kommt die Ultraviolettintensität der Glimmentladung zu einer derartigen Steigerung,' daß die photochemischen Aktivierung'seffekte überraschend stark ausfallen. Infolgedessen -wird die mit solchen Lampen vorgenommene Aktivierung an Wirtschaftlichkeit der üblichen Bogenlampenbe-Strahlung mindestens gleichwertig, während sie ihr an Einfachheit der Durchführung in vielen Fällen sogar wesentlich überlegen ist.Even when using discharge vessels made of quartz and the like a glow discharge in the usual carrier gases, especially z. B. in noble gas, only a very little photochemically active ultraviolet radiation. You can see in them however, a mercury bottom body, which ensures that the discharge space always saturated with mercury vapor. remains, then comes the ultraviolet intensity the glow discharge to such an increase that the photochemical activation effects surprisingly strong. As a result, that is done with such lamps Activation of the economic efficiency of the usual arc lamp radiation at least equivalent to their simplicity of implementation in many cases even is substantially superior.

Als besonders zweckmäßig hat es sich er= geben, die gemäß der Erfindung_ver%vendeten Röhren mit einer Edelgasfüllung zu versehen, so daß sie schon mit verhältnismäßig niedrigen Spannungen b trieben _ werden können. Da die Edelgase, insbesondere Argon, einen verhältnismäßig -niedrigen Wärmeleitungskoeffizienten besitzen, wird auf diese Weise gleichzeitig die Erwärmung des Entladungsgefäßes beschleunigt. Hierdurch wird der im Inneren des Entladungsgefäßes bestehende QuecksilbeTdampf-Sättigungsdruck erhöht, sri daß eine Steigerung der Ultraviolettstrahlungzustande kommt. Trotzdem bleibt 'die Betriebsstromstärke im Gegensatz selbst zu den schwächsten Bögenlampen meist wesentlich unter einem Ampere.It has proven to be particularly expedient to use those according to the invention To provide tubes with an inert gas filling, so that they are already relatively low voltages can be driven. Since the noble gases, especially argon, a have a relatively low coefficient of thermal conductivity, In this way, the heating of the discharge vessel is accelerated at the same time. This results in the mercury vapor saturation pressure in the interior of the discharge vessel increases, sri that there is an increase in ultraviolet radiation conditions. Nevertheless remains' the operating current in contrast to even the weakest arc lamps mostly well below an ampere.

Ein Beispiel für die Ausführung des erfindungsgemäßen Verfahrens sei an Hand der Abbildung erläutert. Das aus Quarz o. dgl. bestehende Entladungsgefäß i wird in die zur Aktivierung dienende Flüssigkeit 2 - eingebracht. Die Innenelektrode 3 dieses Entladungsgefäßes ist mit einem Hochfrequenzapparat ö. dgl. verbunden. zu denken. Als zweite (Außen-) Elektrode dient die Flüssigkeit z. Durch das im Inneren des Entladungsgefäßes i bis fast an seine Spitze geführte Rohr 4 wird die Glimmentladung gezwungen, bis an diese Spitze des eingetauchten Entladungsgefäßes vorzudringen. 5 ist der Quecksilberbodenkörper. Die glimmenden Gasschichten; - von denen die aktivierende Lumineszenzstrahlung ausgeht, sind durch die Schraffierung ro angedeutet.An example for the implementation of the method according to the invention is explained on the basis of the illustration. The discharge vessel made of quartz or the like i is introduced into the liquid 2 - used for activation. The inner electrode 3 of this discharge vessel is connected to a high-frequency apparatus or the like. to think. The liquid z. Through that inside of the discharge vessel i, the tube 4, which is led almost to its tip, is the glow discharge forced to penetrate to this tip of the immersed discharge vessel. 5 is the mercury bottom body. The smoldering layers of gas; - of which the activating Luminescence radiation emanates are indicated by hatching ro.

Claims (1)

PATENTANSPRUCH: Die Verwendung einer mit verdünnten Gä-sen unter Beimengung von Quecksilberdampf gefüllten elektrischen Glimmentladungslampe, welche mit einer für ultra-' violette Strahlen durchlässigen Hülle versehen ist, zur photochemischen Aktivierung von #Gasen und Flüssigkeiten durch Ultraviolettbestr ahlung. PATENT CLAIM: The use of an electric glow discharge lamp filled with dilute gases with the addition of mercury vapor, which is provided with an envelope permeable to ultraviolet rays, for the photochemical activation of gases and liquids by means of ultraviolet radiation.
DEG66467D 1926-02-09 1926-02-09 The use of an electric glow discharge lamp filled with dilute gases with the addition of mercury vapor, which is provided with a cover that is permeable to ultraviolet rays, for the photochemical activation of gases and liquids by means of ultraviolet radiation Expired DE550408C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG66467D DE550408C (en) 1926-02-09 1926-02-09 The use of an electric glow discharge lamp filled with dilute gases with the addition of mercury vapor, which is provided with a cover that is permeable to ultraviolet rays, for the photochemical activation of gases and liquids by means of ultraviolet radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG66467D DE550408C (en) 1926-02-09 1926-02-09 The use of an electric glow discharge lamp filled with dilute gases with the addition of mercury vapor, which is provided with a cover that is permeable to ultraviolet rays, for the photochemical activation of gases and liquids by means of ultraviolet radiation

Publications (1)

Publication Number Publication Date
DE550408C true DE550408C (en) 1932-05-11

Family

ID=7133937

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG66467D Expired DE550408C (en) 1926-02-09 1926-02-09 The use of an electric glow discharge lamp filled with dilute gases with the addition of mercury vapor, which is provided with a cover that is permeable to ultraviolet rays, for the photochemical activation of gases and liquids by means of ultraviolet radiation

Country Status (1)

Country Link
DE (1) DE550408C (en)

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