Bonded fluid heat exchanging apparatus

Abstract

A heat exchanging apparatus has a flow path with air tightness formed by joining a second sheet to a first sheet formed by bending the first sheet by stamping and fluid introduced into the flow path impinges on a wall of the flow path to perform heat exchange. A material constituting the flow path may be a metal sheet or an electrically-conductive plastic, and a small-sized and light-weight heat exchanging apparatus can be manufactured at a low cost.

What is claimed is: 
     
         1 . A heat exchanging apparatus, comprising:
 a first sheet formed with grooves by bending the first sheet by stamping; and   a second sheet joined to the first sheet,   
       wherein
 the grooves are provided with lateral grooves opened outward at a side face of the first sheet and elongated in one direction, and formed in another direction different from the one direction at predetermined intervals in a plural-stage fashion, and a plurality of longitudinal grooves connecting adjacent lateral grooves of the lateral grooves to each other such that the adjacent lateral grooves communicate with each other, the longitudinal grooves being perpendicular to the lateral grooves; 
 a flow path is formed such that fluid introduced into one lateral groove of the lateral grooves positioned at on one end of the flow path flows to another lateral groove of the lateral grooves positioned at the other end of the flow path via the lateral grooves and the longitudinal grooves; and 
 fluid caused to flow in the flow path impinges on a wall of the flow path perpendicularly to perform heat exchange and the fluid is caused to flow out of a fluid outlet port positioned at the other end of the flow path. 
 
     
     
         2 . The heat exchanging apparatus according to  claim 1 , wherein
 the sheets are each either one of an iron sheet, a stainless steel sheet, an aluminum sheet, a brass sheet, and a plastic composite material sheet mixed with carbon nanotubes, graphene, carbon fibers, or metal fibers.   
     
     
         3 . The heat exchanging apparatus according to  claim 1 , wherein
 either one of lining with resin, paining, plating, oxidizing to form an oxide film is performed to surfaces of the sheets.   
     
     
         4 . The heat exchanging apparatus according to  claim 1 , wherein
 the second sheet is joined to the first sheet by a joint of a type formed by either one of joining using an electrical welder, joining performed by electrical welding, joining performed by argon welding, joining performed by silver solder welding, crimping, joining performed by screwing, joining performed by screwing via interposition between the sheets, and joining performed by adhesive.   
     
     
         5 . The heat exchanging apparatus according to  claim 1 , wherein
 the fluid is either one of gas containing air, liquid containing water, and gas containing radioactive element.   
     
     
         6 . The heat exchanging apparatus according to  claim 1 , wherein
 the heat exchanging apparatus heats the fluid by either one of attaching a heater to the heat exchanging apparatus and putting the heat exchanging apparatus in a high-temperature medium.   
     
     
         7 . The heat exchanging apparatus according to  claim 1 , wherein
 the heat exchanging apparatus cools the fluid by either one of causing the heat exchanging apparatus to contact with a low-temperature medium and putting the heat exchanging apparatus in a low-temperature medium.   
     
     
         8 . A heat exchanging apparatus, wherein two heat exchanging apparatuses according to  claim 1  are joined to each other and first fluid and second fluid are caused to flow in each of the two heat exchanging apparatuses. 
     
     
         9 . An apparatus where high-temperature steam produced by the heat exchanging apparatus according to  claim 1  and an organic matter are caused to contact with each other. 
     
     
         10 . The heat exchanging apparatus according to  claim 1 , being a bonded tubular heat exchanging apparatus formed in a tubular shape and positioning a tubular sealing sheet inside, and including a plurality of flow path sheets separated from one another and formed on the tubular sealing sheet. 
     
     
         11 . The heat exchanging apparatus according to  claim 1 , being a cylindrical heat exchanging apparatus having a cylindrical flow path sheet bonded to a cylindrical sealing sheet.