HEAT-EXCHANGING SEGMENTS AND HEAT-EXCHANGING ELEMENT FOR GAS TO GAS STACKING THE SAME

PROBLEM TO BE SOLVED: To provide a heat-exchanging element which is suitable for use in the case where the inflow resistance of one gas and the discharge resistance of the other gas are in unbalanced relation, concerning a heat-exchanging element where heat-exchanging segments equipped with flat and elliptic hollow resinous spacers are stacked. SOLUTION: A heat-exchanging element 1a is made into such structure that the same type of heat-exchanging segments are stacked, and one gas passage 3a is supplied with gas A (for example, outside air), and the other gas passage 4a is supplied with gas B (for example, inside air) so as to exchange heat. What is more, the heat-exchanging segment is equipped with flat elliptic first and second hollow resinous spacers 5a and 7a, and besides the dimension (dimension in direction Z) between the flat faces of the second hollow resinous spacer 7a is larger than the dimension between the flat faces of the first hollow resinous spacer 5a.