Total heat exchange element and total heat exchanger

Abstract

A total heat exchange element, includes: a first flow passage through which a first airflow passes; a second flow passage through which a second airflow passes; and a partition plate that is arranged to separate the first flow passage and the second flow passage from each other and conduct total heat exchange between the first airflow and the second airflow. The partition plate has a layered structure of sandwiching a first film on both surfaces thereof with second films, the first film is a non-aqueous film having a gas shielding property and vapor-permeable property, and each of the second films is waterproof vapor-permeable film.

1 . A total heat exchange element, comprising:
 a first flow passage through which a first airflow passes;   a second flow passage through which a second airflow passes; and   a partition plate that is arranged to separate the first flow passage and the second flow passage from each other and conduct total heat exchange between the first airflow and the second airflow, wherein   the partition plate has a layered structure of sandwiching a first film on both surfaces thereof with second films,   the first film is a non-aqueous film having a gas shielding property and vapor-permeable property, and   each of the second films is waterproof vapor-permeable film.   
     
     
         2 . The total heat exchange element according to  claim 1 , wherein the waterproof vapor-permeable film comprises porous film. 
     
     
         3 . The total heat exchange element according to  claim 2 , wherein the waterproof vapor-permeable film comprises hydrophobic porous film. 
     
     
         4 . The total heat exchange element according to  claim 3 , wherein the hydrophobic porous film includes at least one of polypropylene and polytetrafluoroethylene. 
     
     
         5 . The total heat exchange element according to  claim 1 , wherein the non-aqueous film includes a water-soluble moisture absorbent. 
     
     
         6 . The total heat exchange element according to  claim 5 , wherein the water-soluble moisture absorbent includes a deliquescent salt. 
     
     
         7 . The total heat exchange element according to  claim 6 , wherein the deliquescent salt includes at least one of lithium chloride and calcium chloride. 
     
     
         8 . The total heat exchange element according to  claim 1 , wherein a peripheral end surface of the layered structure of the partition plate is sealed with a non-aqueous material. 
     
     
         9 . A total heat exchanger, comprising:
 a total heat exchange element, comprising:
 a first flow passage through which a first airflow passes; 
 a second flow passage through which a second airflow passes; and 
 a partition plate that is arranged to separate the first flow passage and the second flow passage from each other and conduct total heat exchange between the first airflow and the second airflow, wherein the partition plate has a layered structure of sandwiching a first film on both surfaces thereof with second films, the first film is a non-aqueous film having a gas shielding property and vapor-permeable property, and each of the second films is waterproof vapor-permeable film; 
   a supply air fan that generates an airflow directed from outside of a room to inside in the first flow passage; and   an exhaust air fan that generates an airflow directed from the inside to the outside in the second flow passage.