| 摘要 |
PROBLEM TO BE SOLVED: To provide an air temperature type liquefied gas vaporizer capable of increasing the vaporizing efficiency of a liquefied gas at a vaporizing part, capable of preventing the fins of finned tubes from being corroded, and manufacturable at a low cost. SOLUTION: This air temperature type liquefied gas vaporizer 1 comprises the vaporizing parts 2 having a plurality of vertically extending finned tubes 8 and a plurality of vertically extending steam flow tubes 17 disposed between the finned tubes 2 of the vaporizing part 2. The steam flow tubes 17 comprise longitudinally extending aluminum extruded structural angle tubes 18 formed, on the outer peripheral surface, by integrating a plurality of radiating fins 18a with each other and a stainless steel inner tube 19 inserted into an outer tube 18 and covering the inner peripheral surface of the outer tube 18. A heat radiation film 21 formed of a black coating and having a heat emissivity of 95% or higher is formed on the outer peripheral surface of the outer tube 18. COPYRIGHT: (C)2005,JPO&NCIPI
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