SEAMLESS PIPE EXPANDING APPARATUS OF AMBIENT AIR VAPORIZER AND SEAMLESS PIPE EXPANDING METHOD USING THE SAME

摘要

Provided is an apparatus to expand a seamless pipe of an ultra-low temperature gas carburetor. The apparatus to expand the seamless pipe of the ultra-low temperature gas carburetor, as an apparatus to expand the seamless pipe in the ultra-low temperature gas carburetor including a plurality of pin tubes and seamless pipes continuously inserted as a zigzag form into the plurality of pin tubes, comprises: a high-pressure flexible hose comprising an air input end and an air output end connected to an inlet of the seamless pipe; an air-injecting pump connected to the air input end to inject air inside the high-pressure flexible hose at a certain pressure; an air-injecting manometer which is electrically or mechanically connected to the air-injecting pump or which is installed in the air-injecting pump to measure the air-injecting pressure of the air-injecting pump; and a closing cap which closes the outlet of the seamless pipe.