The invention provides a large power carbon
fiber electric heating tube for industrial use, which comprises an outer
electrode,
electrode packing heads, electric heater bodies, an
electrode wire, internal racks, a tubular case, and an exhaust hole. Two or more
electric heating bodies are connected in series in the tubular case, an internal rack is disposed between the
electric heating body and the tubular case, an internal sleeved tube runs through the electric heating body having
electric wire penetrating therein, an internal rack is disposed between the internal sleeved tube and the electric heating body, sleeve shaped electrodes are disposed on both ends of the electric heating body, which are connected with the electrode wire through connection wires.
Electrode packing heads equipped with outer electrodes are disposed on both ends of the tubular case, and the electrode wire is connected with the outer electrode through high temperature tolerant
metal connection plates. Comparing with technique in prior art, the electric heating tube has uniform
working temperature, stable electric heating performance, long life, and
heating efficiency reaches over 98%, consequently has great propagation and application value.