US3863107A - Method and device for the striking of an arc in a reactor - Google Patents

Method and device for the striking of an arc in a reactor Download PDF

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Publication number
US3863107A
US3863107A US374367A US37436773A US3863107A US 3863107 A US3863107 A US 3863107A US 374367 A US374367 A US 374367A US 37436773 A US37436773 A US 37436773A US 3863107 A US3863107 A US 3863107A
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US
United States
Prior art keywords
cathode
anode
intermediate electrode
voltage
arc
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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 - Lifetime
Application number
US374367A
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English (en)
Inventor
Palne Mogensen
Erik Smars
Mats J Kaij
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.)
Linde Sverige AB
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AGA AB
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Filing date
Publication date
Application filed by AGA AB filed Critical AGA AB
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Publication of US3863107A publication Critical patent/US3863107A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
    • H01J37/32055—Arc discharge
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B31/00—Electric arc lamps
    • H05B31/02—Details
    • H05B31/30—Starting; Igniting
    • H05B31/305—Ignition devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/36—Circuit arrangements

Definitions

  • the present invention relates to a method and a de- [51] Int Cl b 17/48 vice for the execution of the method for the striking of [58] Fie'ld 137 360 an arc between cathode and anode in a reactor for the "515 5 6 cracking of hydrocarbons, e.g., for the manufacture of acetylene, the reactor comprising a number of inter- [56] References Cited mediate electrodes arranged between cathode and and UNITED STATES PATENTS 0 e 2.957.098 10/1960 Bernstein 315/336 X 4 Claims, 1 Drawing Figure CONTROL EQUIPMENT 9 a lGN/T/O/V 1 DEV/CE PATENIEn Mmms CONTROL EQUIPMENT a IGNITION /DEV/CE METHOD AND DEVICE
  • the object of the present invention to provide a method and a device which make it possible to achieve a safe striking of the are without the aforementioned disadvantages.
  • the method is characterized mainly in that one or more of the intermediate electrodes are given a voltage of the same type as that of the anode, that a striking voltage is applied during a short interval of time between the cathode and the intermediate electrode located nearest the cathode, so that during this interval of time an arc is produced between the cathode and the said intermediate electrode, and that thereafter at certain intervals of time the voltage to the subsequent electrodes is broken, the arc formed being passed on to the subsequent intermediate electrode until the arc reaches the anode, whereby a fully formed are is obtained between the cathode and the anode.
  • FIGURE shows schematically a reactor 1 which comprises a cathode 2, a number of intermediate electrodes 3, 4, 5 and 6 and an anode 7.
  • the cathode and the anode are connected to a voltage source.
  • an ignition device 8 that can be switched on and off. This can consist, e.g., of a high frequence ignition device or a spark discharge ignition device.
  • each of the intermediate electrodes is connected via a break contact 15, 16, 17 and 18 to the same pole on the voltage source as the anode 7.
  • the break contacts are worked upon by relay devices which can be constituted of for example the contactors l0, l1, l2 and I3 respectively.
  • the ignition device 8 and the contactors l0 13 are influenced by a control equipment 9 which comprises a number of timecontrolled coupling members, e.g., time relays.
  • the time relays are arranged so that in the first place a con- LII trol signal is transmitted to the ignition device 8 which is switched on during a brief interval 'of time. During this an arc is formed between the cathode 2 and the nearest intermediate electrode 3. Thereupon the time relays by turn switch on the contactors 15-18.
  • the voltage is first switched off by the contact 15 to the intermediate electrode 3, as a result of which the arc is passed on to the intermediate electrode 4.
  • the voltage to the electrode 4 is then switched off by means of the contact I6, the arc being passed on to the intermediate electrode 5.
  • the voltage is successively switched off to the intermediate electrodes, so that when the voltage has been switched off to the last intermediate electrode 6 by means of the contact I8, the arc is passed over to the anode 7.
  • a fully developed arc has been generated between the cathode and the anode.
  • a reactance coil 14 is connected between the anode and the respective intermediate electrode. This inductance is so dimensioned that high frequency interferences are suppressed, and that the current is given a suitable rise time.
  • the cathode can at the instant of striking be advanced towards the anode so that the cathode is enclosed by the nearest intermediate electrode.
  • the ignition device is connected between the two nearest intermediate electrodes and an arc is produced between these electrodes and the cathode.
  • the arc is then passed on towards the anode in the manner as described earlier, as the cathode is moved backwards from the first intermediate electrode.
  • a method for the striking of an arc between a cathode and an anode in a reactor comprising the steps of providing a number of intermediate electrodes arranged between cathode and anode in the reactor, providing the intermediate electrodes with a voltage similar to that provided the anode, applying a striking voltage during a brief interval of time between the cathode and the intermediate electrode closest to the cathode, so that during this interval an arc is produced between the cathode and a first intermediate electrode, and subsequently at certain intervals of time, switching off the voltage to the first intermediate electrode and switching on the voltage to the following voltage energized intermediate electrode, the are formed being passed on to the following intermediate electrode until it reaches the anode. as a result of which a fully developed arc is obtained between cathode and anode.
  • Apparatus comprising a reactor, a cathode and an anode passing within said reactor and spaced one from another. intermediate electrodes spaced one from another along a path between said cathode and anode and spaced from said cathode and anode, control means for applying a common voltage to said intermediate electrodes and said anode, striking voltage control means for applying a striking voltage between the cathode and the intermediate electrode closest to the cathode.
  • control means for switching off in time sequential relation the voltage to said intermediate electrodes starting with the intermediate electrode closest to said cathode and then switching off voltage to the next closest intermediate electrode whereby the arc formed between the first intermediate electrode and the cathode is passed on to the next closest intermediate electrode until it reaches the anode. as a result of which a fully developed arc is obtained between cathode and anode.
  • Apparatus in accordance with claim 2 including high frequency damping means operative between each intermediate electrode and said control means to suppress high frequency interference and to give a suitable rise time to current in the intermediate electrode circuit.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Plasma Technology (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
US374367A 1972-06-29 1973-06-28 Method and device for the striking of an arc in a reactor Expired - Lifetime US3863107A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE08537/72A SE364520B (en, 2012) 1972-06-29 1972-06-29

Publications (1)

Publication Number Publication Date
US3863107A true US3863107A (en) 1975-01-28

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ID=20274350

Family Applications (1)

Application Number Title Priority Date Filing Date
US374367A Expired - Lifetime US3863107A (en) 1972-06-29 1973-06-28 Method and device for the striking of an arc in a reactor

Country Status (8)

Country Link
US (1) US3863107A (en, 2012)
JP (1) JPS4955602A (en, 2012)
BE (1) BE801471A (en, 2012)
DE (1) DE2333251C3 (en, 2012)
FR (1) FR2191395B1 (en, 2012)
GB (1) GB1437976A (en, 2012)
NL (1) NL7308952A (en, 2012)
SE (1) SE364520B (en, 2012)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068192A (en) * 1976-04-15 1978-01-10 The United States Of America As Represented By The Secretary Of The Navy Gas laser starting
WO1990003095A1 (en) * 1988-09-13 1990-03-22 Commonwealth Scientific And Industrial Research Organisation Electric arc generating device
US6924608B2 (en) * 2000-11-27 2005-08-02 World Energy Systems Corporation System and method for ignition and reignition of unstable electrical discharges
US20090056604A1 (en) * 2006-07-14 2009-03-05 Hartvigsen Joseph J Apparatus and Method of Electric Arc Incineration
CN102625560A (zh) * 2012-03-10 2012-08-01 新疆天业（集团）有限公司 一种等离子炬引弧方法
US8350190B2 (en) 2007-02-23 2013-01-08 Ceramatec, Inc. Ceramic electrode for gliding electric arc
US8618436B2 (en) 2006-07-14 2013-12-31 Ceramatec, Inc. Apparatus and method of oxidation utilizing a gliding electric arc

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991011086A1 (en) * 1990-01-15 1991-07-25 Leningradsky Politekhnichesky Institut Imeni M.I.Kalinina Device for striking of electric arc in plasmatron
TWI632305B (zh) * 2017-10-13 2018-08-11 建準電機工業股份有限公司 軸承組及具軸承組之馬達

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957098A (en) * 1958-12-18 1960-10-18 Nuclear Corp Of America Multi-element counter tube
US2977508A (en) * 1956-07-17 1961-03-28 Edgerton Germeshausen & Grier Gaseous-discharge device and system
US3223884A (en) * 1961-09-26 1965-12-14 Edgerton Germeshausen & Grier Gaseous-discharge device
US3237051A (en) * 1961-12-13 1966-02-22 Hobart Brothers Co Direct current welder with variable reactor
US3238417A (en) * 1962-02-15 1966-03-01 Asea Ab Mercury arc rectifier connection with parallel discharge paths
US3351806A (en) * 1965-05-21 1967-11-07 Polytechnic Inst Brooklyn Microwave spark-gap switch having a trigger electrode centered between and aligned with the opposed electrode

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH224296A (de) * 1940-11-29 1942-11-15 Licentia Gmbh Anordnung zur Erleichterung der Zündung von dampf- oder gasgefüllten Glühkathodenentladungsgefässen mit besonderer Zündanode.
CH349247A (de) * 1956-07-14 1960-10-15 Berghaus Elektrophysik Anst Verfahren und Einrichtung zur Durchführung von Glimmentladungsprozessen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977508A (en) * 1956-07-17 1961-03-28 Edgerton Germeshausen & Grier Gaseous-discharge device and system
US2957098A (en) * 1958-12-18 1960-10-18 Nuclear Corp Of America Multi-element counter tube
US3223884A (en) * 1961-09-26 1965-12-14 Edgerton Germeshausen & Grier Gaseous-discharge device
US3237051A (en) * 1961-12-13 1966-02-22 Hobart Brothers Co Direct current welder with variable reactor
US3238417A (en) * 1962-02-15 1966-03-01 Asea Ab Mercury arc rectifier connection with parallel discharge paths
US3351806A (en) * 1965-05-21 1967-11-07 Polytechnic Inst Brooklyn Microwave spark-gap switch having a trigger electrode centered between and aligned with the opposed electrode

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068192A (en) * 1976-04-15 1978-01-10 The United States Of America As Represented By The Secretary Of The Navy Gas laser starting
WO1990003095A1 (en) * 1988-09-13 1990-03-22 Commonwealth Scientific And Industrial Research Organisation Electric arc generating device
US6924608B2 (en) * 2000-11-27 2005-08-02 World Energy Systems Corporation System and method for ignition and reignition of unstable electrical discharges
US20050269978A1 (en) * 2000-11-27 2005-12-08 World Energy Systems Corporation Systems and method for ignition and reignition of unstable electrical discharges
US7417385B2 (en) 2000-11-27 2008-08-26 Ceramatec, Inc. Systems and method for ignition and reignition of unstable electrical discharges
US20090056604A1 (en) * 2006-07-14 2009-03-05 Hartvigsen Joseph J Apparatus and Method of Electric Arc Incineration
US8618436B2 (en) 2006-07-14 2013-12-31 Ceramatec, Inc. Apparatus and method of oxidation utilizing a gliding electric arc
US8742285B2 (en) 2006-07-14 2014-06-03 Ceramatec, Inc. Method of oxidation utilizing a gliding electric arc
US8826834B2 (en) 2006-07-14 2014-09-09 Ceramatec, Inc. Apparatus and method of electric arc incineration
US8350190B2 (en) 2007-02-23 2013-01-08 Ceramatec, Inc. Ceramic electrode for gliding electric arc
CN102625560A (zh) * 2012-03-10 2012-08-01 新疆天业（集团）有限公司 一种等离子炬引弧方法

Also Published As

Publication number Publication date
BE801471A (fr) 1973-10-15
NL7308952A (en, 2012) 1974-01-02
FR2191395A1 (en, 2012) 1974-02-01
JPS4955602A (en, 2012) 1974-05-30
GB1437976A (en) 1976-06-03
FR2191395B1 (en, 2012) 1975-09-26
DE2333251B2 (de) 1979-08-23
DE2333251C3 (de) 1980-05-14
SE364520B (en, 2012) 1974-02-25
DE2333251A1 (de) 1974-03-07

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