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INNER FLAME [6 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1996-10-11

English

Subject field(s)
  • Equipment (Chemistry)
DEF

[In flame spectroscopy], a burner in which fuel and oxidant are thoroughly mixed inside the burner housing before they leave the burner ports and enter the primary-combustion or inner zone of the flame. This type of burner usually produces an approximately laminar flame, and is commonly combined with a separate unit for nebulizing the sample.

CONT

The second type of burner, used in most commercial instruments, is the premix chamber burner, sometimes called the laminar-flow burner. ... The fuel and support gases are mixed in a chamber before they enter the burner head (through a slot) where they combust. The sample solution is again aspirated through a capillary by the "Venturi effect" using the support gas for the aspiration. Large droplets of the sample condense and drain out of the chamber. The remaining fine droplets mix with the gases and enter the flame. As much as 90% of the droplets condense out, leaving only 10% to enter the flame.

French

Domaine(s)
  • Équipement (Chimie)
DEF

[En spectroscopie à flamme], un brûleur dans lequel le combustible et le comburant sont complètement mélangés à l'intérieur du brûleur avant de franchir son ou ses orifices de sortie et de pénétrer dans la zone de combustion primaire ou dans la zone interne de la flamme. Ce type de brûleur produit habituellement une flamme approximativement laminaire et est couramment associé à un dispositif distinct de nébulisation de l'échantillon.

Spanish

Save record 1

Record 2 1991-03-12

English

Subject field(s)
  • Burners and Steamfitting
CONT

Soft, Lazy Flame. This condition appears only when just enough primary air is admitted to the burner to cause the yellow tips to disappear. The inner cone and the outer envelope will not be as clearly defined as they are in the correct, blue flame. This type of flame is best for high-low operation. It is not suitable, however, wherever there may be a shortage of secondary air. This flame will burn blue in the open air; however, when it touches a cooler surface, soot will be deposited on that surface.

French

Domaine(s)
  • Fumisterie et brûleurs
CONT

Grâce à ce dispositif [accroche-flamme], très utile pour les foyers longs et étroits, la flamme dite accrochée pénètre toute formée et chaude [dans le foyer de la chaudière]. De plus, la flamme accrochée est plus propice que la flamme molle (son contraire), pour l'utilisation des fluides plus visqueux.

Spanish

Save record 2

Record 3 1990-10-05

English

Subject field(s)
  • Burners and Steamfitting
CONT

the blue flame was produced by blowing primary air into the base of the flame.

CONT

Sharp, Blue Flame. When the proper ratio of gas to air is maintained, there will be a sharp, blue flame. Both the outer envelope and the inner cone will be pointed and the sides will be straight. the flame will be resting on the burner ports and there will not be any noticeable blowing noise. The flame will ignite smoothly on demand from the thermostat. Also, it will burn with a nonluminous flame. This is the most desirable flame for heating purposes on standard heating units.

French

Domaine(s)
  • Fumisterie et brûleurs
CONT

Brûleurs à flamme bleue. (...) Il y a un apport d'air avant l'arrivée du gaz aux orifices de combustion. Cet apport d'air est appelé "air primaire" et n'exclut pas "l'air secondaire" pris dans l'atmosphère par le mélange enflammé à la sortie des orifices. La flamme se présente sous la forme d'un cône bleu et d'un panache beaucoup plus clair.

CONT

La flamme aérée obtenue, courte, de couleur bleue (d'où le nom de brûleur à flamme bleue) (...).

Spanish

Save record 3

Record 4 1983-05-01

English

Subject field(s)
  • Welding and Soldering (Metals)
OBS

Oxyacetylene safety

OBS

Term officially approved by CN.

French

Domaine(s)
  • Soudage (Métal)
OBS

CISO, 71, 23

OBS

Terme uniformisé par le CN.

Spanish

Save record 4

Record 5 1975-03-11

English

Subject field(s)
  • Gas Welding
CONT

turn the oxygen pressure-adjusting screw in slowly, watching the flame closely. A bright inner cone will appear. This is called a feather.

French

Domaine(s)
  • Soudage au gaz
CONT

[...] un excès d'acétylène se reconnaît à une auréole blanchâtre venant prolonger le dard en rendant ses contours flous

Spanish

Save record 5

Record 6 1975-03-11

English

Subject field(s)
  • Gas Welding
CONT

in an oxy-acetylene flame there are 2 or 3 stages of combustion : 1) the inner tip, sometimes called the cone... 2) beard or brush

French

Domaine(s)
  • Soudage au gaz
CONT

la flamme oxy-acétylénique normale est caractérisée par 2 zones bien distinctes : le dard et le panache.

Spanish

Save record 6

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