DEVICE FOR CLEANING IN GAS PIPE

摘要

PURPOSE: A device for cleaning gas pipes is provided to remove foreign substances inside the pipe by using high-pressure nitrogen gas when an inner side of the gas pipe is cleaned and to fundamentally prevent moisture from generating when the foreign substance is removed. CONSTITUTION: A device (100) for cleaning gas pipes comprises a cryogenic container (10), a vaporizer (20), a discharge pipe (30), a regulator (40), opening or closing valves (50,86), and a hose (60). The vaporizer is connected to the cryogenic container and vaporizes liquid nitrogen supplied from the cryogenic container into nitrogen gas. The regulator is installed in the discharge pipe and controls discharge pressure of the nitrogen gas discharged through the discharge pipe. The hose is installed in the front end of the discharge pipe and discharges the nitrogen gas to the gas pipe.