Serpentine-type serviceable heat exchanger and method for manufacturing the same

Abstract

A heat exchanger for a heat exchange operation such as sensible heat exchange, evaporation and condensation, and more particularly, a serpentine-type serviceable heat exchanger where a heat exchanger coil which guides a heat transfer medium for a heat exchange is formed in a serpentine shape, and a method for manufacturing the same. The serpentine-type serviceable heat exchanger includes a heat exchanger coil having a plurality of linear coils disposed in parallel, and a connection coil disposed between the two neighboring linear coils and fittedly-coupled to the linear coils such that a serpentine-type inner passage is formed as the linear coils are connected to each other by the connection coil; and a frame having an edge forming portion which forms an edge such that the heat exchanger coil is installed therein, and a supporting portion which supports the heat exchanger coil installed in an edge formed by the edge forming portion.

1 . A serpentine-type serviceable heat exchanger, the heat exchanger comprising:
 a heat exchanger coil having a plurality of linear coils disposed in parallel, and a connection coil disposed between the two neighboring linear coils and fittedly-coupled to the linear coils such that a serpentine-type inner passage is formed as the linear coils are connected to each other by the connection coil; and   a frame having an edge forming portion which forms an edge such that the heat exchanger coil is installed therein, and a supporting portion which supports the heat exchanger coil installed in an edge formed by the edge forming portion.   
     
     
         2 . The serpentine-type serviceable heat exchanger of  claim 1 , wherein the connection coil is bent in a horseshoe shape. 
     
     
         3 . The serpentine-type serviceable heat exchanger of  claim 1 , wherein the connection coil is bent in a horseshoe shape, and
 wherein the heat exchanger further comprises a joint fittedly-coupled to the connection coil and the linear coils in a separable manner such that the connection coil and the linear coils are integrally connected to each other.   
     
     
         4 . The serpentine-type serviceable heat exchanger of  claim 1 , wherein the connection coil includes:
 a body portion which forms an inner passage of the heat exchanger coil; and a joint integrally provided at the body portion so as to be fittedly-coupled to the linear coils in a separable manner, and   wherein the joint includes:   a body extending from the body portion, configured to accommodate the linear coils therein, and having an inclination portion of which diameter is gradually decreased toward the joint from the body portion;   stopping members formed in an arc shape of the same size, spaced from each other in a circumferential direction of the body, and configured to lock or unlock the linear coils accommodated in the body while moving along the inclination portion of the body; and   a shaft-direction elastic member configured to elastically support the stopping members toward the joint from the body portion.   
     
     
         5 . The serpentine-type serviceable heat exchanger of  claim 1 , wherein the supporting portion is formed in plurality in a lengthwise direction of the linear coils. 
     
     
         6 . The serpentine-type serviceable heat exchanger of  claim 1 , wherein the supporting portion is fixed to the edge forming portion or is detachably coupled to the edge forming portion, and
 wherein the supporting portion has a groove or a hole for mounting the linear coils.   
     
     
         7 . The serpentine-type serviceable heat exchanger of  claim 6 , wherein the supporting portion is configured as a plate in which the hole is formed in plurality. 
     
     
         8 . The serpentine-type serviceable heat exchanger of  claim 7 , wherein the holes of the supporting portion are formed by punching the plate in a direction where the linear coils are inserted, and by protruding the punched parts. 
     
     
         9 . The serpentine-type serviceable heat exchanger of  claim 8 , wherein the protruded punched parts of the supporting portion are cut in plurality along the circumference of the hole. 
     
     
         10 . The serpentine-type serviceable heat exchanger of  claim 7 , wherein a bush is interposed between the hole of the supporting portion and the linear coils. 
     
     
         11 . The serpentine-type serviceable heat exchanger of  claim 1 , wherein the frame includes a first header and a second header connected to two ends of the heat exchanger coil, respectively, and configured to guide introduction and discharge of a heat transfer fluid, and
 wherein the first header and the second header are fittedly-coupled to the heat exchanger coil by the joint.   
     
     
         12 . The serpentine-type serviceable heat exchanger of  claim 2 , wherein the connection coil includes:
 a body portion which forms an inner passage of the heat exchanger coil; and   a joint integrally provided at the body portion so as to be fittedly-coupled to the linear coils in a separable manner, and   wherein the joint includes:   a body extending from the body portion, configured to accommodate the linear coils therein, and having an inclination portion of which diameter is gradually decreased toward the joint from the body portion;   stopping members formed in an arc shape of the same size, spaced from each other in a circumferential direction of the body, and configured to lock or unlock the linear coils accommodated in the body while moving along the inclination portion of the body; and   a shaft-direction elastic member configured to elastically support the stopping members toward the joint from the body portion.   
     
     
         13 . The serpentine-type serviceable heat exchanger of  claim 12 , wherein the supporting portion is fixed to the edge forming portion or is detachably coupled to the edge forming portion, and
 wherein the supporting portion is configured as a plate in which the hole for mounting the linear coils is formed in plurality.   
     
     
         14 . The serpentine-type serviceable heat exchanger of  claim 13 , wherein the holes of the supporting portion are formed by punching the plate in a direction where the linear coils are inserted, and by protruding the punched parts. 
     
     
         15 . The serpentine-type serviceable heat exchanger of  claim 14 , wherein the protruded punched parts of the supporting portion are cut in plurality along the circumference of the hole. 
     
     
         16 . The serpentine-type serviceable heat exchanger of  claim 13 , wherein a bush is interposed between the hole of the supporting portion and the linear coils. 
     
     
         17 . The serpentine-type serviceable heat exchanger of  claim 12 , wherein the connection coil is bent in a horseshoe shape. 
     
     
         18 . The serpentine-type serviceable heat exchanger of  claim 12 , wherein the connection coil is bent in a horseshoe shape, and
 wherein the heat exchanger further comprises a joint fittedly-coupled to the connection coil and the linear coils in a separable manner such that the connection coil and the linear coils are integrally connected to each other.   
     
     
         19 . A method for manufacturing the serpentine-type serviceable heat exchanger of  claim 1 , the method comprising:
 a plating or coating step of performing a plating or coating process by immersing a frame into a plating solution or a coating solution in a state that a plurality of linear coils have been installed at the frame such that the linear coils are supported by a supporting portion of the frame; and   a heat exchanger coil completion step of completing a heat exchanger coil by fittedly-coupling a connection coil to the linear coils installed at the frame.   
     
     
         20 . A method for manufacturing the serpentine-type serviceable heat exchanger of  claim 12 , the method comprising:
 a plating or coating step of performing a plating or coating process by immersing a frame into a plating solution or a coating solution in a state that a plurality of linear coils have been installed at the frame such that the linear coils are supported by a supporting portion of the frame; and   a heat exchanger coil completion step of completing a heat exchanger coil by fittedly-coupling a connection coil to the linear coils installed at the frame.