Heat exchanger

Abstract

The present invention relates to a multi-pass heat exchanger, in which a plurality of heat exchange plates may be stacked to form a plurality of flow paths through which a heat exchange medium flows, and an inlet part, through which the heat exchange medium is introduced, and an outlet part, through which the heat exchange medium is discharged, may be positioned at the same side, thereby improving mountability, workability, and the like with modularized components such as manifolds.

1 . A heat exchanger comprising:
 a core part in which flow paths, through which a heat exchange medium flows, are formed between heat exchange plates by stacking a plurality of heat exchange plates, and an inflow part, through which the heat exchange medium is introduced, and an outflow part, through which the heat exchange medium is discharged, are formed; and   an isolation flow part disposed in the inflow part or the outflow part of the core part and configured to divide an internal space of the inflow part or the outflow part of the core part to form a separate flow path through the heat exchange medium flows,   wherein an inlet, through which the heat exchange medium is introduced into the inflow part, and an outlet, through which the heat exchange medium is discharged from the outflow part, are disposed at one side of the core part.   
     
     
         2 . The heat exchanger of  claim 1 , further comprising:
 a partition part disposed in the inflow part or the outflow part of the core part and configured to divide the internal space,   wherein a plurality of passes is formed when a flow of the heat exchange medium passing through the heat exchange medium flow path in a direction toward one side or the other side is a pass.   
     
     
         3 . The heat exchanger of  claim 2 , wherein the heat exchange medium introduced into the core part flows through the isolation flow part and then is introduced into a first pass region. 
     
     
         4 . The heat exchanger of  claim 2 , wherein the passes are formed as three passes. 
     
     
         5 . The heat exchanger of  claim 1 , wherein the inlet, through which the heat exchange medium is introduced into the inflow part, and the outlet, through which the heat exchange medium is discharged from the outflow part, are disposed at the same side in a direction in which the plurality of heat exchange plates of the core part is stacked. 
     
     
         6 . The heat exchanger of  claim 1 , wherein the partition part is formed to intersect a longitudinal direction in which the heat exchange medium flows along the inside of the inflow part or the outflow part, and the internal space of the inflow part or the outflow part is divided by the partition part. 
     
     
         7 . The heat exchanger of  claim 1 , wherein the isolation flow part is formed to correspond to a longitudinal direction in which the heat exchange medium flows along the inside of the inflow part or the outflow part, and the internal space of the inflow part or the outflow part is divided by the isolation flow part. 
     
     
         8 . The heat exchanger of  claim 7 , wherein the isolation flow part divides a partial region of the inflow part or the outflow part in the longitudinal direction in which the heat exchange medium flows along the inside of the inflow part or the outflow part. 
     
     
         9 . The heat exchanger of  claim 1 , wherein the partition part comprises:
 a blocking part configured to block a part of the inside of the inflow part; and   a baffle part disposed at a position spaced apart from the blocking part in a longitudinal direction and configured to divide and block the inside of the outflow part.   
     
     
         10 . The heat exchanger of  claim 9 , wherein the isolation flow part comprises an internal pipe inserted into the inflow part and having one longitudinal side inserted and coupled into the inlet of the inflow part, and the other longitudinal side inserted and coupled into the blocking part. 
     
     
         11 . The heat exchanger of  claim 10 , further comprising:
 an inlet flange coupled to the inlet side of the inflow part of the core part and having a communication flow path into which one side of the internal pipe is inserted and coupled to communicate with the communication flow path.   
     
     
         12 . The heat exchanger of  claim 11 , wherein a catching groove is concavely formed in an inner peripheral surface of the communication flow path of the inlet flange, a catching protrusion protrudes from an outer peripheral surface of one side of the internal pipe, and the catching protrusion is inserted and coupled into the catching groove. 
     
     
         13 . The heat exchanger of  claim 10 , wherein the blocking part comprises:
 a first extension portion extending in a radial direction from the inside of the inflow part toward the internal pipe; and   a second extension portion extending from an end of the first extension portion in a direction in which the internal pipe is inserted.   
     
     
         14 . The heat exchanger of  claim 13 , wherein a portion where the first extension portion and the second extension portion of the blocking part are connected is formed in a rounded shape. 
     
     
         15 . The heat exchanger of  claim 13 , wherein a swaged pipe portion is formed at the other side of the internal pipe inserted into the blocking part, and the swaged pipe portion is formed in a shape having an outer diameter that decreases toward an end thereof. 
     
     
         16 . The heat exchanger of  claim 13 , wherein the plurality of heat exchange plates of the core part has cup portions protruding, in a direction in which the heat exchange plates are stacked, from peripheries of through-holes penetrating two opposite surfaces of each of the plurality of heat exchange plates and configured to allow the heat exchange medium to flow therethrough, and
 wherein the blocking part integrally extends from an end of the cup portion of the heat exchange plate.   
     
     
         17 . The heat exchanger of  claim 9 , wherein the plurality of heat exchange plates of the core part has through-holes penetrating two opposite surfaces of each of the plurality of heat exchange plates and configured to allow the heat exchange medium to flow therethrough, and
 wherein the baffle part is integrally formed in a shape in which a portion corresponding to the through-hole of the heat exchange plate is blocked.   
     
     
         18 . The heat exchanger of  claim 1 , wherein the core part has flow paths through which a plurality of heat exchange media flows between the heat exchange plates by stacking the plurality of heat exchange plates, and has the inflow parts and the outflow parts through which the plurality of heat exchange media is introduced and discharged, and
 wherein the partition part and the isolation flow part are formed in the inflow part or the outflow part through which any one of the plurality of heat exchange media flows.   
     
     
         19 . The heat exchanger of  claim 18 , wherein the core part is formed by stacking a plurality of first heat exchange plates and a plurality of second heat exchange plates,
 wherein the partition part comprises:   a blocking part configured to block a part of the inside of the inflow part; and   a baffle part disposed at a position spaced apart from the blocking part in a longitudinal direction and configured to divide and block the inside of the outflow part,   wherein the blocking part is integrated with the first heat exchange plate at a corresponding position, and   wherein the baffle part is integrated with the first heat exchange plate and the adjacent second heat exchange plate at a corresponding position.