Heat recovery exchanger

The utility model discloses a heat recovery exchanger which mainly comprises a heat transferring wall, supporting frames and an external frame, wherein the heat transferring wall is in a flat plate type; the supporting frames are arranged on both sides of the heat transferring wall; the combination of the multilayer heat transferring walls and the supporting frames is fixedly arranged in the external frame; accordingly, the heat recovery exchanger of the utility model is formed. Accordingly, the supporting frames on both sides of the heat transferring wall are used as the internal support of the heat exchanger to enhance the strength and also naturally form a liquid channel. Because the supporting frames of the heat recovery exchanger are used as the internal support of the heat exchanger to enhance the strength and also naturally form the liquid channel and the combination of the multilayer heat transferring walls and the supporting frames is fixedly arranged in the external frame to form the heat exchanger, the utility model is mainly used for the heat exchange of two air, the utility model is especially suitable for the air heat recovery. The utility model can be both used for the sensible heat recovery, and used for the sensible heat and latent heat recovery. The heat recovery efficiency is high, and the energy utilization can be notably increased. The utility model has the advantages of simple manufacture and low cost, and can form modular structure.