Semi-detachable welded plate type heat exchanger

The invention provides a half-detachable welding plate type heat exchanger. The technical problems needed to be solved are as follows: the prior plate type heat exchanger widely uses rubber pad to seal, and the rubber pad can not be used in the medium which has corrodibility to the rubber pad. While the tube type heat exchange also has the defects of low heat transmission efficiency, inconvenient demounting and cleaning, etc, and the complete welding plate type heat exchanger is not detachable. The half-detachable welding plate type heat exchanger has the key points that a plate bundle is welded by the lateral sides of every two corrugated plates, and a I flow channel is formed. Two plate bundles are welded together, and an II flow channel is formed between the lateral sides of every two plate bundles. At last, end faces on the same side of a plurality of plate bundles and the casing fillers are sealed together, and a complete machine is formed. The half-detachable welding plate type heat exchanger has the pu