Heat exchanger

Abstract

The purpose of the present invention is to provide a compact heat exchanger with which the generation of excessive pressure loss can be suppressed and a suitable flow rate can be assured in accordance with the volumetric changes of a fluid due to phase changes. This heat exchanger (1) comprises a flow path (8) which has an inlet (10) into which a fluid (6) flows and an outlet (11) through which the flowed fluid (6) flows out, and in which a phase change from a fluid phase to a gas phase occurs between the inlet (10) and the outlet (11), wherein the inside of the flow path (8) is formed in a resistance shape (12) so that the amount of flow path resistance applied to the flow of the fluid (6) is smaller on the outlet (11) side than the inlet (10) side.

1 . A heat exchanger comprising:
 a flow path having an inflow port through which a fluid flows thereinto and an outflow port through which the fluid having flowed in flows out therefrom, and in which a phase change occurs from a liquid phase to a gas phase between the inflow port and the outflow port,   wherein a resistance shape is formed inside the flow path such that a magnitude of a flow path resistance applied to a flow of the fluid is smaller on the outflow port side than on the inflow port side.   
     
     
         2 . A heat exchanger comprising:
 a flow path having an inflow port through which a fluid flows thereinto and an outflow port through which the fluid having flowed in flows out therefrom, and in which a phase change occurs from a gas phase to a liquid phase between the inflow port and the outflow port,   wherein a resistance shape is formed inside the flow path such that a magnitude of a flow path resistance applied to a flow of the fluid is larger on the outflow port side than on the inflow port side.   
     
     
         3 . The heat exchanger according to  claim 1 ,
 wherein the resistance shape is formed by a plate forming the flow path or a plurality of fins provided on the plate.   
     
     
         4 . The heat exchanger according to  claim 1 , further comprising:
 a separate flow path that is provided adjacent to the flow path and is subjected to heat exchange with the fluid flowing through the flow path.   
     
     
         5 . The heat exchanger according to  claim 4 ,
 wherein a resistance shape is formed inside the separate flow path such that the same flow path resistance is applied between an inflow port through which a fluid flows thereinto to flow in the separate flow path and an outflow port through which the fluid having flowed in flows out therefrom.   
     
     
         6 . The heat exchanger according to  claim 4 ,
 wherein a resistance shape is formed inside the separate flow path such that a flow path resistance is smaller at an inflow port through which a fluid flows thereinto to flow in the separate flow path than at an outflow port through which the fluid having flowed in flows out therefrom or is larger than at the inflow port than at the outflow port.   
     
     
         7 . The heat exchanger according to  claim 2 ,
 wherein the resistance shape is formed by a plate forming the flow path or a plurality of fins provided on the plate.   
     
     
         8 . The heat exchanger according to  claim 2 , further comprising:
 a separate flow path that is provided adjacent to the flow path and is subjected to heat exchange with the fluid flowing through the flow path.   
     
     
         9 . The heat exchanger according to  claim 3 , further comprising:
 a separate flow path that is provided adjacent to the flow path and is subjected to heat exchange with the fluid flowing through the flow path.