GB1283909A - A device in which, when it is used, an electric arc passes between two electrodes through a gas in the device and the gas leaves the device in a stream - Google Patents

A device in which, when it is used, an electric arc passes between two electrodes through a gas in the device and the gas leaves the device in a stream

Info

Publication number
GB1283909A
GB1283909A GB52088/70A GB5208870A GB1283909A GB 1283909 A GB1283909 A GB 1283909A GB 52088/70 A GB52088/70 A GB 52088/70A GB 5208870 A GB5208870 A GB 5208870A GB 1283909 A GB1283909 A GB 1283909A
Authority
GB
United Kingdom
Prior art keywords
electrodes
coating
arc
gas
stream
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
GB52088/70A
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.)
Siemens AG
Original Assignee
Siemens 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
Priority claimed from DE19691955147 external-priority patent/DE1955147C/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1283909A publication Critical patent/GB1283909A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • H05H1/3431—Coaxial cylindrical electrodes
    • 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
    • H05H1/3484—Convergent-divergent nozzles
    • 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
    • H05H1/3494—Means for controlling discharge parameters
    • 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
    • H05H1/40—Details, e.g. electrodes, nozzles using applied magnetic fields, e.g. for focusing or rotating the arc

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Plasma Technology (AREA)
  • Air Bags (AREA)

Abstract

1283909 Monitoring a gas stream photoelectrically SIEMENS A G 2 Nov 1970 [3 Nov 1969] 52088/70 Heading G1A [Also in Division H5] In a device for generating a stream 24 of electrically excited gas by means of an electric arc 26 between two electrodes 2 and 4, at least one of the electrodes is provided on its surface remote from the arc with a coating 33, 34 of material which, when the arc burns through the electrode to reach the coating, alters the emission spectrum of the gas stream and hence causes a monitoring device, e. g. a photocell assembly 38-44, to interrupt the current supply to the electrodes. A filter 38 isolates a spectral region or line characteristic of the coating material to produce the control signal. The photo-cell 44, located adjacent a diaphragm 42, may be a gallium arsenide diode, a photo-resistor or a photovoltaic cell, and it may form one arm of a bridge. Within the arc chamber 20, which has an aperture for introduction of the gas stream, the annular copper electrodes 2 and 4 are movable in an axial direction. The coating may be of aluminium, dural (Trade mark), chromium, sodium or a sodium salt. The electrodes may be double-walled, in which case the coating is contained between the walls. The coating may be soldered, welded, shrunk or cast on to the electrode material. Field coils 28, 29, which cause the arc to rotate, contain hollow conductors 30 through which flows cooling liquid. Further cooling liquid flows between the electrodes and the field coils. Power for the electrodes is derived from a 380V. three-phase supply controlled by an adjuster 10. The adjuster output feeds a rectifier 6 whose output is 850A at 700V. The current supply is kept constant by using a transducer 18 to sample this current and compare it in a regulator 17 with its nominal value supplied at 19.
GB52088/70A 1969-11-03 1970-11-02 A device in which, when it is used, an electric arc passes between two electrodes through a gas in the device and the gas leaves the device in a stream Expired GB1283909A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691955147 DE1955147C (en) 1969-11-03 Arrangement for the protection of a device for generating a gas jet

Publications (1)

Publication Number Publication Date
GB1283909A true GB1283909A (en) 1972-08-02

Family

ID=5749958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB52088/70A Expired GB1283909A (en) 1969-11-03 1970-11-02 A device in which, when it is used, an electric arc passes between two electrodes through a gas in the device and the gas leaves the device in a stream

Country Status (10)

Country Link
US (1) US3735592A (en)
AT (1) AT301710B (en)
AU (1) AU2172570A (en)
BE (1) BE758297A (en)
CH (1) CH519289A (en)
ES (1) ES385129A1 (en)
FR (1) FR2068387A5 (en)
GB (1) GB1283909A (en)
NL (1) NL7014978A (en)
SE (1) SE353641B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218604A (en) * 1988-05-03 1989-11-15 Fiz Tekh Inst Ioffe Electric-arc device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8666928B2 (en) * 2005-08-01 2014-03-04 Evi Technologies Limited Knowledge repository
DE102014213744A1 (en) * 2014-07-15 2016-01-21 Primetals Technologies Germany Gmbh Electric arc furnace with a safety device and method for securing peripheral devices to electric arc furnaces
CN109714850A (en) * 2018-12-19 2019-05-03 西安航天动力研究所 It is a kind of for generating the high efficiency method of clean high temperature air

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797336A (en) * 1954-07-28 1957-06-25 Gen Electric Photoelectric flame detector
US3041824A (en) * 1956-05-01 1962-07-03 Amalgamated Growth Ind Inc Propulsion system
US2981062A (en) * 1957-05-21 1961-04-25 Arnoux Corp Method and apparatus for safe operation of engines
US3038306A (en) * 1959-11-24 1962-06-12 Gen Electric Gas turbine overspeed protection system
FR1385395A (en) * 1963-08-19 1965-01-15 Snecma Improvements to electro-thermal ejectors
FR1423078A (en) * 1964-11-19 1966-01-03 Snecma Electrothermal electric arc thruster
DE1271852C2 (en) * 1966-11-05 1975-07-31 Siemens Aktiengesellschaft, 1000 Berlin und 8000 München PLASMA BURNER
US3504490A (en) * 1968-02-20 1970-04-07 Conductron Corp Light sensitive apparatus for preventing flameout in combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218604A (en) * 1988-05-03 1989-11-15 Fiz Tekh Inst Ioffe Electric-arc device

Also Published As

Publication number Publication date
SE353641B (en) 1973-02-05
AT301710B (en) 1972-09-11
BE758297A (en) 1971-04-01
FR2068387A5 (en) 1971-08-20
AU2172570A (en) 1972-05-04
CH519289A (en) 1972-02-15
NL7014978A (en) 1971-05-05
DE1955147A1 (en) 1971-05-13
DE1955147B2 (en) 1973-01-25
ES385129A1 (en) 1973-04-01
US3735592A (en) 1973-05-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees