HIGH PRESSURE AMBIENT ULTRA-LOW TEMPERATURE VAPORIZER, AND METHOD FOR COUPLING SEAMLESS PIPE AND FIN TUBE WHICH ARE USED IN VAPORIZER

摘要

The present invention relates to a high pressure ambient ultra-low temperature vaporizer, and a method for coupling a seamless pipe and a fin tube which are used in the vaporizer. The vaporizer comprises: a seamless pipe through which a high pressure ultra-low temperature liquid gas passes; and a fin tube which is coupled to the circumference of the seamless pipe and allows heat exchange to be performed between the seamless pipe and the atmosphere. The fin tube consists of: a coupling boss adhered to the circumference of the seamless pipe; and a plurality of heat-radiating fans which are radially formed on the circumference of the coupling boss. Accordingly, if a liquid-state ultra-low temperature gas such as LNG, industrial gas, etc. passes through the seamless pipe, the liquid-state ultra-low temperature gas is changed to a gaseous state since the temperature of the ultra-low temperature gas is increased while heat conduction between the coupling boss and the heat-radiating fans of the fin tube, and the seamless pipe occurs. Therefore, since a plurality of heat-radiating fans are radially arranged on the circumference of the coupling boss of the fin tube, the heat release effect is excellent. In addition, since the contact area between the atmosphere and the heat-radiating fans is maximized due to the radially arranged heat-radiating fans and heat-radiating grooves on the surfaces of the heat-radiating fans, the performance of the vaporizer is improved.