In view of hard cleaning for the blockage at pipe fittings,such as branch,orifice plate and nozzle on the COG return pipeline caused by coal tar and naphthalene,an easy-to-operate cleaning device is designed to keep gas channel smooth and meet the requirement for normal heating,which not only improves the cleaning,but also greatly shortens the cleaning time.

"> COG return pipe fittings, Blockage, Cleaning , device ,