Heat exchanger

Abstract

the present disclosure provides a heat exchanger, by which a local temperature imbalance may be solved and generation of scale may be suppressed.

What is claimed is: 
     
         1 . A heat exchanger comprising:
 a first plate extending in a first direction, and having an inlet and an outlet located in the first direction of the inlet;   a second plate disposed in a second direction crossing the first direction of the first plate, and defining an interior space, in which a fluid introduced through the inlet flows toward the outlet, together with the first plate;   a heat emitting part coupled to any one of the first plate and the second plate, and configured to provide heat to the interior space; and   a rib part protruding from at least any one of the first plate or the second plate toward the interior space,   wherein each of the first plate and the second plate includes a heat emitting area configured such that the heat emitting part is coupled thereto,   wherein each of the heat emitting areas includes:   a reference area located adjacent to the outlet and satisfying a specific reference condition, and a remaining area excluding the reference area, and   wherein the heat emitting part includes:   a remaining heat emitting member coupled to the remaining area.   
     
     
         2 . The heat exchanger of  claim 1 , wherein the reference condition is a case, in which a temperature of a corresponding portion corresponds to a reference temperature or more when the heat emitting part is operated for a specific time period in a state, in which the heat emitting part is coupled to an entire area of the reference area and the remaining area. 
     
     
         3 . The heat exchanger of  claim 2 , wherein the reference area has a trapezoidal shape, in which a length of a first side being adjacent to the outlet is greater than a length of a second side being parallel to the first side. 
     
     
         4 . The heat exchanger of  claim 3 , wherein when a direction crossing the first direction and the second direction is defined as a third direction,
 the heat emitting part further includes:   an additional heat emitting member coupled to an additional area of the reference area, which is located in the third direction.   
     
     
         5 . The heat exchanger of  claim 4 , further comprising:
 a temperature sensor configured to acquire a surface temperature of the additional area; and   a descaling part configured to descale the interior space.   
     
     
         6 . The heat exchanger of  claim 5 , wherein the interior space is descaled by operating the descaling part when the surface temperature of the additional area, which is sensed by the temperature sensor, is the reference temperature or more. 
     
     
         7 . The heat exchanger of  claim 5 , wherein the temperature sensor includes a sensing member configured to acquire a temperature of an attached object, and
 wherein the additional area has a larger area than an extent of the sensing member viewed along the second direction.   
     
     
         8 . The heat exchanger of  claim 2 , wherein when a direction crossing the first direction and the second direction is defined as a third direction,
 the rib part includes:   a plurality of first rib members protruding from the first plate toward the interior space, extending in a direction inclined in the third direction with respect to the first direction, and arranged along the first direction; and   a plurality of second rib members protruding from the second plate toward the interior space, extending in an opposite direction to the third direction with respect to the first direction, and arranged along the first direction.   
     
     
         9 . The heat exchanger of  claim 8 , wherein the first rib member and the second rib member are spaced apart from each other along the second direction. 
     
     
         10 . The heat exchanger of  claim 8 , wherein the reference area includes:
 a removal area located in the first direction from a center of an overlapping area, in which the first rib member and the second rib member overlap each other, when viewed along the second direction, and having a rectangular shape, in which a length thereof in the third direction corresponds to twice of a length of the first rib member in the second direction; and   an attachment area except for the removal area, in the reference area, and   wherein the heat emitting part further includes:   an attached heat emitting member coupled to the attachment area.   
     
     
         11 . The heat exchanger of  claim 2 , wherein the rib part includes:
 a plurality of rib members contacting the first plate and the second plate, and disposed to be spaced apart from each other, and   wherein the rib member has a rhombus shape when viewed along the second direction.   
     
     
         12 . The heat exchanger of  claim 11 , wherein when a direction crossing the first direction and the second direction is defined as a third direction, and
 when a rhombus being similar to the rib member, and in which a length thereof in the first direction is a length obtained by adding a length of 0.3 to 0.6 times a length of the rib member in the second direction to a length of the rib member in the first direction is defined as a reference rhombus,   wherein the reference area includes:   a removal area having a rectangular shape, in which the rib member is disposed in an interior thereof when viewed along the second direction, a length thereof in the first direction corresponds to a length of the reference rhombus in the first direction, and a length thereof in the third direction corresponds to a length of the reference rhombus in the third direction; and   an attachment area except for the removal area, in the reference area, and   wherein the heat emitting part includes:   an attached heat emitting member coupled to the attachment area.