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

Patent metadata

Field	Value
Publication number	US-2016327315-A1
Application number	US-201615140826-A
Country	US
Kind code	A1
Filing date	Apr 28, 2016
Priority date	May 8, 2015
Publication date	Nov 10, 2016
Grant date	—

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.

First claim

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.

Assignees

• Masuzawa Masahiro
• Aman Yasutomo
• Shiren Yohei
• Ohkura Hiroko
• Takahashi Tomiko
• Ohba Yoshifumi
• Tsukahara Kohji
• Ricoh Co Ltd

Inventors

• Masuzawa Masahiro
• Aman Yasutomo
• Shiren Yohei
• Ohkura Hiroko
• Takahashi Tomiko
• Ohba Yoshifumi
• Tsukahara Kohji

Classifications

• F25B30/04 Primary

  of the sorption type · CPC title

• F28F3/046

  the deformations being linear, e.g. corrugations · CPC title

• F25B17/08 Primary

  the absorbent or adsorbent being a solid, e.g. salt (F25B17/12 takes precedence) · CPC title

• F28D9/0031

  the conduits for one heat-exchange medium being formed by paired plates touching each other (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence) · CPC title

• F28D9/0081

  the conduits for one heat-exchange medium being formed by a single plate-like element (F28D9/0012 takes precedence); the conduits for one heat-exchange medium being integrated in one single plate-like element (F28D9/0012 takes precedence) · CPC title