Phosphoric enriched graphite heating apparatus

The utility model relates to a phosphoric aid enriched graphite heat exchanger. An upper cover plate and an upper sealing head fixing pipe plate form rigid connection with a housing flange through screw bolts and screw caps, a pipe bundle is connected with an upper pipe plate and a lower pipe plate (a sliding pipe plate) by using the daub through a graphite pipe baffle plate, and the lower pipe plate and a housing filling pipe form flexible connection through soft filling material. A lower sealing head and a lower cover plate form rigid connection by using the screw bolts and nuts through a flange split ring. The product has the advantage of novel and safe structure.