HEAT EXCHANGER

摘要

A heat exchanger comprises first and second elements which are alternately layered in the circumferential direction to form a cylinder, and the cylinder is rotated to effect a conventional rotational regenerative total heat exchange, or a heat exchange or a total heat exchange can also be effected between the first and second elements. The cylinder may be hollow or not, according to circumstances, so that it is possible to have various different routes for the primary and secondary gas flows. Partition walls between the first and second elements can have various properties so that they are moisture-permeable, non-moisture-permeable and non-hygroscopic, etc. Therefore, the first and second elements have therebetween a total heat exchange mode and a sensible heat exchange mode.