BE829239R - INSTALLATION FOR OBTAINING A HIGH TEMPERATURE PLASMA - Google Patents

INSTALLATION FOR OBTAINING A HIGH TEMPERATURE PLASMA

Info

Publication number
BE829239R
BE829239R BE156487A BE156487A BE829239R BE 829239 R BE829239 R BE 829239R BE 156487 A BE156487 A BE 156487A BE 156487 A BE156487 A BE 156487A BE 829239 R BE829239 R BE 829239R
Authority
BE
Belgium
Prior art keywords
emi
electrode
installation
high temperature
obtaining
Prior art date
Application number
BE156487A
Other languages
French (fr)
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 filed Critical
Priority to BE156487A priority Critical patent/BE829239R/en
Application granted granted Critical
Publication of BE829239R publication Critical patent/BE829239R/en
Priority to LU74464A priority patent/LU74464A1/xx
Priority to FR7606926A priority patent/FR2312169A2/en
Priority to CH346376A priority patent/CH590598A5/xx
Priority to JP5338476A priority patent/JPS51135852A/en
Priority to DE19762622029 priority patent/DE2622029A1/en

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00Generating plasma; Handling plasma
    • H05H1/24Generating plasma
    • H05H1/26Plasma torches
    • H05H1/32Plasma torches using an arc
    • H05H1/34Details, e.g. electrodes, nozzles
    • H05H1/36Circuit arrangements
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00Generating plasma; Handling plasma
    • H05H1/24Generating plasma
    • H05H1/26Plasma torches
    • H05H1/32Plasma torches using an arc
    • H05H1/44Plasma torches using an arc using more than one torch

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Plasma Technology (AREA)

Description

       

   <EMI ID=1.1> 

  
haute température". 

  
 <EMI ID=2.1> 

  
riantes particulières dans la combinaison, la disposition et les dimensions relatives des électrodes ainsi que dans leurs schémas d'alimentation en courants électriques alternatifs.

  
 <EMI ID=3.1> 

  
réalisée par la superposition de courants alternatifs au courant continu pilote trois effets nouveaux sont obtenus par l'intro-

  
 <EMI ID=4.1> 

  
électrodes,
- l'augmentation des puissances utilisables sans augmentation concomitante de la densité de courant,
- la possibilité d'introduire une variation "longitudinale" des paramètres de l'arc,
- la possibilité d'injection supplémentaire de gaz dans les <EMI ID=5.1> 

  
L'augmentation des puissances utilisables, jusqu'à 5 MW, sans augmentation sensible de la densité de courant, et donc de détérioration des électrodes, est possible grâce aux dimensions

  
 <EMI ID=6.1> 

  
creuses). 

  
La variation des paramètres d'arc dans le sens de son écoulement est réalisée par l'introduction de moyens de réglage
(quels qu'ils soient) dans les circuits deuxième - troisième électrodes d'une part, troisième - quatrième, d'autre part, ce

  
 <EMI ID=7.1> 

  
dans ces deux intervalles.

  
Enfin, la possibilité reste offerte d'injecter du gaz supplémentaire au niveau de la troisième électrode annulaire,

  
Les perfectionnements apportés aux installations du brevet de référence (ne 623.218) par la présente investies, sont donc caractérisés par s
- la mise sous tension alternative d'une quatrième électrode  <EMI ID=8.1>  et
- l'utilisation de moyen* de réglage sur les circuits alternatifs. Ils sont présentés de façon plus explicite dans les figures annexées au présent brevet sana que celles-ci ne soient limitatires de forme* d'exécution possibles.

  
 <EMI ID=9.1>  selon l'invention ne comportant qu'une seule torche. La figure 5 montré schématiquement une installation à trois torche* analogues alimentées suivant un schéma triphasé en étoile et convergeant au centre d'une chambre à réaction (four, creuset, etc...)

  
 <EMI ID=10.1>   <EMI ID=11.1> 

  
de plus, dans la figure 3

  

 <EMI ID=12.1> 


  
 <EMI ID=13.1>  

REVENDICATIONS.

  
 <EMI ID=14.1> 

  
 <EMI ID=15.1> 

  
une source de courant continu dont un pâle est connecté à une

  
 <EMI ID=16.1> 

  
des moyens capables d'envoyer au contact d'urne troisième électrode (III), à travers l'électrode creuse susdite, le plasma formé par un arc réunissant les deux première électrodes, cette troi-

  
 <EMI ID=17.1> 

  
courant alternatif susdit caractérisée on c e que ladite source de courant alternatif est en outre connec-

  
 <EMI ID=18.1> 



   <EMI ID = 1.1>

  
high temperature".

  
 <EMI ID = 2.1>

  
special considerations in the combination, arrangement and relative dimensions of the electrodes as well as in their alternating electric current supply schemes.

  
 <EMI ID = 3.1>

  
carried out by the superposition of alternating currents to the pilot direct current three new effects are obtained by the introduction

  
 <EMI ID = 4.1>

  
electrodes,
- the increase in usable powers without a concomitant increase in the current density,
- the possibility of introducing a "longitudinal" variation of the arc parameters,
- the possibility of additional gas injection in <EMI ID = 5.1>

  
The increase in usable powers, up to 5 MW, without a significant increase in current density, and therefore damage to the electrodes, is possible thanks to the dimensions

  
 <EMI ID = 6.1>

  
hollow).

  
The variation of the arc parameters in the direction of its flow is achieved by the introduction of adjustment means
(whatever they are) in the circuits second - third electrodes on the one hand, third - fourth, on the other hand, this

  
 <EMI ID = 7.1>

  
in these two intervals.

  
Finally, the possibility remains available of injecting additional gas at the level of the third annular electrode,

  
The improvements made to the installations of the reference patent (no 623,218) hereby invested, are therefore characterized by s
- the alternating voltage supply of a fourth electrode <EMI ID = 8.1> and
- the use of adjustment means * on the alternative circuits. They are presented more explicitly in the figures appended to the present patent without these being limitatires of possible form of execution.

  
 <EMI ID = 9.1> according to the invention comprising only one torch. Figure 5 schematically shows an installation with three similar torches * supplied according to a three-phase star diagram and converging in the center of a reaction chamber (furnace, crucible, etc.)

  
 <EMI ID = 10.1> <EMI ID = 11.1>

  
moreover, in figure 3

  

 <EMI ID = 12.1>


  
 <EMI ID = 13.1>

CLAIMS.

  
 <EMI ID = 14.1>

  
 <EMI ID = 15.1>

  
a direct current source of which one blade is connected to a

  
 <EMI ID = 16.1>

  
means capable of sending to the urn contact third electrode (III), through the aforementioned hollow electrode, the plasma formed by an arc joining the two first electrodes, this three-

  
 <EMI ID = 17.1>

  
aforesaid alternating current characterized in that said alternating current source is further connected

  
 <EMI ID = 18.1>


    

Claims (1)

2. Installation suivant revendication 1 comportant en plus la aise en rotation, par champ magnétique, du plasma d'arc entre 2. Installation according to claim 1 further comprising the ease of rotation, by magnetic field, the arc plasma between la deuxième et la troisième électrode. the second and the third electrode. 3. Installation suivant revendications 1 et 2 dans laquelle des <EMI ID=19.1> 3. Installation according to claims 1 and 2 in which <EMI ID = 19.1> ternatifs entre la deuxième et la troisième électrode d'une part et, d'autre part, entre la troisième et la quatrième électrode, alternating between the second and the third electrode on the one hand and, on the other hand, between the third and the fourth electrode, <EMI ID=20.1> <EMI ID = 20.1> le la quatrième électrode terminale est constituée par le corps the fourth terminal electrode is formed by the body <EMI ID=21.1> <EMI ID = 21.1> ratures Constitué par la mise en convergence de trois installations suivant revendications précédentes sur une quatrième électrode commune caractérisé en c e q u e leurs circuits alternatifs sont montés en étoile sur une source unique de courant triphasé. erasures Constituted by the convergence of three installations according to the preceding claims on a fourth common electrode, characterized in that their alternating circuits are connected in a star on a single three-phase current source. 8. Dispositif suivant revendication 7 dans lequel l'électrode commune est constituée par l'enceinte d'un four plasma triphasé. <EMI ID=22.1> 8. Device according to claim 7 wherein the common electrode is formed by the enclosure of a three-phase plasma furnace. <EMI ID = 22.1> 9. Dispositif suivant revendication 8 dans lequel l'électréde 9. Device according to claim 8 wherein the electrode <EMI ID=23.1> <EMI ID = 23.1> chaud. hot.
BE156487A 1975-05-20 1975-05-20 INSTALLATION FOR OBTAINING A HIGH TEMPERATURE PLASMA BE829239R (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE156487A BE829239R (en) 1975-05-20 1975-05-20 INSTALLATION FOR OBTAINING A HIGH TEMPERATURE PLASMA
LU74464A LU74464A1 (en) 1975-05-20 1976-03-03
FR7606926A FR2312169A2 (en) 1975-05-20 1976-03-11 Plasma arc prodn. unit - for a plasma arc furnace uses four electrodes with an alternative arc
CH346376A CH590598A5 (en) 1975-05-20 1976-03-19
JP5338476A JPS51135852A (en) 1975-05-20 1976-05-12 Device for obtaining high temperature plasma in arc welders operating on ac
DE19762622029 DE2622029A1 (en) 1975-05-20 1976-05-18 DEVICE FOR GENERATING A HIGH-TEMPERATURE PLASMA

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE829239 1975-05-20
BE156487A BE829239R (en) 1975-05-20 1975-05-20 INSTALLATION FOR OBTAINING A HIGH TEMPERATURE PLASMA

Publications (1)

Publication Number Publication Date
BE829239R true BE829239R (en) 1975-09-15

Family

ID=25648608

Family Applications (1)

Application Number Title Priority Date Filing Date
BE156487A BE829239R (en) 1975-05-20 1975-05-20 INSTALLATION FOR OBTAINING A HIGH TEMPERATURE PLASMA

Country Status (1)

Country Link
BE (1) BE829239R (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321226A1 (en) * 1975-08-11 1977-03-11 Westinghouse Electric Corp POLYPHASE CURRENT ARC HEATING UNIT SYSTEM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321226A1 (en) * 1975-08-11 1977-03-11 Westinghouse Electric Corp POLYPHASE CURRENT ARC HEATING UNIT SYSTEM

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