| 摘要 |
PROBLEM TO BE SOLVED: To provide a vaporizer which can prevent liquid refrigerant from accumulating and can improve cooling performance.SOLUTION: A vaporizer comprises: multiple tubes 43 in which a refrigerant can circulate inside and which perform air blasting and heat exchange; an upper tank 41 which is provided at upper ends of the tubes 43 and in which the refrigerant can circulate with each tube 43; a lower tank 42 which is provided at lower ends of the tubes 43 and in which the refrigerant can circulate with each tube 43; a refrigerant introduction opening 40a introducing the refrigerant inside and a refrigerant discharge opening 40b discharging the refrigerant outside; and an inside refrigerant passage 45 from the refrigerant introduction opening through the upper tank 41 and the lower tank 42 while circulating through the tubes 43 up and down to the refrigerant discharge opening 40b. The cross section of the lower tank 42 is smaller than the cross section of the upper tank 41. |
