Electrical heater for flowing through liquids or gases, is coil shaped and is wounded around pipe line, which is made from material of high thermal efficiency

摘要

The electrical heater is coil shaped and is wounded around pipe line, which is made from material of high thermal efficiency. The interior of the pipe line is provided with thin sheet metal part longitudinally. The high thermal efficient material is divided into multiple chambers and is connected firmly with the inner wall of the pipe line.