Heat exchanger, chemical heat pump, and production method for producing heat exchanger

Abstract

A heat exchanger includes a plurality of plate fins including a plurality of flow channels in which a heat medium flows; a plurality of corrugated fins, the plurality of plate fins and the plurality of corrugated fins being arranged alternately; and a reaction portion solidified by crystallization of reaction material slurry filling gaps between the plurality of plate fins and the plurality of the corrugated fins, the reaction material slurry including a reaction material that reversibly reacts with a reaction medium in an exothermic manner and in an endothermic manner to exchange heat with the heat medium.

What is claimed is 
     
         1 . A heat exchanger comprising:
 a plurality of plate fins including a plurality of flow channels in which a heat medium flows;   a plurality of corrugated fins, the plurality of plate fins and the plurality of corrugated fins being arranged alternately; and   a reaction portion solidified by crystallization of reaction material slurry filling gaps between the plurality of plate fins and the plurality of the corrugated fins, the reaction material slurry including a reaction material that reversibly reacts with a reaction medium in an exothermic manner and in an endothermic manner to exchange heat with the heat medium.   
     
     
         2 . The heat exchanger according to  claim 1 , wherein the reaction material is hemihydrate gypsum or III type anhydrous gypsum. 
     
     
         3 . The heat exchanger according to  claim 2 , wherein the reaction material slurry includes a setting retarder. 
     
     
         4 . The heat exchanger according to  claim 1  wherein the reaction portion includes a plurality of holes. 
     
     
         5 . A chemical heat pump comprising:
 a reactor including the heat exchanger according to  claim 1 ;   a reaction medium supplying unit configured to supply the reaction medium to the reactor; and   a reaction medium recovery unit configured to recover the reaction medium from the reactor.   
     
     
         6 . A production method for producing a heat exchanger in which a plurality of plate fins including a plurality of flow channels where a heat medium flows and a plurality of corrugated fins are arranged alternately, the production method comprising;
 a slurry making step of making reaction material slurry including a reaction material that reversibly reacts with a reaction medium in an exothermic manner and in an endothermic manner to exchange heat with the heat medium;   a filling step of filling gaps between the plurality of plate fins and the plurality of corrugated fins with the reaction material slurry; and   a reaction portion forming step of forming a reaction portion by solidifying the reaction material slurry filling the gaps between the plurality of plate fins and the plurality of corrugated fins.   
     
     
         7 . The production method for producing the heat exchanger according to  claim 6 , wherein the reaction material slurry is made in the slurry making step by adding the reaction material to mixed liquid of a setting retarder and water and mixing the reaction material and the mixed liquid. 15 
     
     
         8 . The production method for producing the heat exchanger according to  claim 6 , wherein the reaction material slurry is made in the slurry making step by adding water to a compound of the reaction material and a setting retarder and mixing the water and the compound. 
     
     
         9 . The production method for producing the heat exchanger according to  claim 6 , wherein the reaction portion forming step includes a drying step of drying the reaction portion, and a burning step of burning the reaction portion.