Acetylene Generator

acetylene generator

[ə′sed·əl‚ēn ′jen·ə‚rād·ər] (engineering) A steel cylinder or tank that provides for controlled mixing of calcium carbide and water to generate acetylene.

Acetylene Generator

an apparatus for producing acetylene, C₂H₂, by decomposing calcium carbide, CaC₂, with water. As a result of the reaction CaC₂ + 2H₂O = C₂H₂+ Ca(OH)₂ at 20° C and 101,325 newtons per sq m (N/m²), or 760 mm of mercury (mm Hg), 235-285 liters (l) of C₂H₂ are obtained from 1 kg of industrial CaC₂; theoretically 1 kg of CaC₂ gives 370 l of C₂H₂. The CaC₂ is decomposed to produce the acetylene in a gas generator from which the gas passes into a gas collector (gas holder).

Acetylene generators are divided into low-pressure types, with pressures no higher than 0.01 meganewton per sq m (MN/m²), or 0.1 kilogram-force per sq cm (kgf/cm²); medium-pressure types, with pressures of 0.01-0.15 MN/m², or 0.1-1.5 kgf/cm² (used for welding); and high-pressure types, with pressures of more than 0.15 MN/m², or 1.5 kgf/cm² (not generally used for welding). An acetylene generator can produce 0.8-150 cu m of acetylene per hour. Because of the danger of explosion, the generators are installed in a separate generator room, which is isolated from other factory buildings. Such generators produce acetylene that is saturated with water vapor, thus giving a lower flame temperature during welding. Consequently, for small amounts of welding the use of dissolved acetylene, which comes in steel tanks filled with a porous mass saturated with acetone, is advisable. This acetylene contains no water vapor, gives a hotter flame, and is explosion-proof.

K. K. KHRENOV

单词	acetylene generator
释义	Acetylene generator Acetylene generator An apparatus, usually quite compact and only a few inches high, that consisted of separate compartments for water and calcium carbide and a means of allowing the water to slowly drip into the Carbide and produce acetylene. Such generators were a basic part of early bicycle lamps, miners’ lamps, and other small portable acetylene lamps. Acetylene Generator acetylene generator [ə′sed·əl‚ēn ′jen·ə‚rād·ər] (engineering) A steel cylinder or tank that provides for controlled mixing of calcium carbide and water to generate acetylene. Acetylene Generator an apparatus for producing acetylene, C₂H₂, by decomposing calcium carbide, CaC₂, with water. As a result of the reaction CaC₂ + 2H₂O = C₂H₂+ Ca(OH)₂ at 20° C and 101,325 newtons per sq m (N/m²), or 760 mm of mercury (mm Hg), 235-285 liters (l) of C₂H₂ are obtained from 1 kg of industrial CaC₂; theoretically 1 kg of CaC₂ gives 370 l of C₂H₂. The CaC₂ is decomposed to produce the acetylene in a gas generator from which the gas passes into a gas collector (gas holder). Acetylene generators are divided into low-pressure types, with pressures no higher than 0.01 meganewton per sq m (MN/m²), or 0.1 kilogram-force per sq cm (kgf/cm²); medium-pressure types, with pressures of 0.01-0.15 MN/m², or 0.1-1.5 kgf/cm² (used for welding); and high-pressure types, with pressures of more than 0.15 MN/m², or 1.5 kgf/cm² (not generally used for welding). An acetylene generator can produce 0.8-150 cu m of acetylene per hour. Because of the danger of explosion, the generators are installed in a separate generator room, which is isolated from other factory buildings. Such generators produce acetylene that is saturated with water vapor, thus giving a lower flame temperature during welding. Consequently, for small amounts of welding the use of dissolved acetylene, which comes in steel tanks filled with a porous mass saturated with acetone, is advisable. This acetylene contains no water vapor, gives a hotter flame, and is explosion-proof. K. K. KHRENOV
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