Hot water heat exchanger

Abstract

The present invention is directed to providing a hot water heat exchanger which has a simple piping structure and minimizes a flow passage length therein, thereby minimizing flow resistance. To this end, the hot water heat exchanger is characterized in that the first adaptor and the second adaptor are connected to the partition configured to define one side surface of the heat exchanging part, a first heating water circulation passage through which the heating water introduced from the inlet port of the first adaptor flows is formed at the space between the partition and the partition adjacent thereto, a first direct water circulation passage through which the direct water introduced from the inlet port of the second adaptor flows is formed at the space between the partition configured to define the other side surface of the heat exchanging part and the partition adjacent thereto, and a plurality of second heating water circulation passages through which the heating water passing through the first heating water circulation passage flows, and a plurality of second direct water circulation passages through which the direct water passing through the first direct water circulation passage flows are alternately formed between the first heating water circulation passage and the first direct water circulation passage.

1 . A hot water heat exchanger comprising:
 a heat exchanging part ( 100 ) in which a plurality of partitions ( 101  to  113 ) are arranged to overlap, and heating water and direct water supplied from a main heat exchanger alternately flow through spaces ( 131 ,  132 ,  133  and  134 ) among the partitions, and thus heat exchange is achieved therebetween,   a first adaptor ( 210 ) in which an inlet port ( 211 ) through which the heating water is introduced and an outlet port ( 212 ) through which the heating water heat-exchanged in the heat exchanging part ( 100 ) is discharged are integrally formed and coupled to the heat exchanging part ( 100 ), and   a second adaptor ( 220 ) in which an inlet port ( 221 ) through which the direct water is introduced and an outlet port ( 222 ) through which hot water heat-exchanged with the heating water and thus heated in the heat exchanging part ( 100 ) is discharged are integrally formed and coupled to the heat exchanging part ( 100 ),   wherein the first adaptor ( 210 ) and the second adaptor ( 220 ) are connected to the partition ( 101 ) configured to define one side surface of the heat exchanging part ( 100 ),   a first heating water circulation passage ( 131 ) through which the heating water introduced from the inlet port ( 211 ) of the first adaptor ( 210 ) flows is formed at the space between the partition ( 101 ) and the partition ( 102 ) adjacent thereto,   a first direct water circulation passage ( 133 ) through which the direct water introduced from the inlet port ( 221 ) of the second adaptor ( 220 ) flows is formed at the space between the partition ( 113 ) configured to define the other side surface of the heat exchanging part ( 100 ) and the partition ( 112 ) adjacent thereto, and   a plurality of second heating water circulation passages ( 132 ) through which the heating water passing through the first heating water circulation passage ( 131 ) flows, and a plurality of second direct water circulation passages ( 134 ) through which the direct water passing through the first direct water circulation passage ( 133 ) flows are alternately formed between the first heating water circulation passage ( 131 ) and the first direct water circulation passage ( 133 ).   
     
     
         2 . The hot water heat exchanger of  claim 1 , wherein a heating water passing portion ( 101   e ) is formed at the partition ( 101 ) configured to define the one side surface of the heat exchanging part ( 100 ) to protrude toward an outer side of the heat exchanging part ( 100 ) and also to diagonally cross the partition ( 101 ), and thus a flow cross-sectional area of the first heating water circulation passage ( 131 ) is expanded. 
     
     
         3 . The hot water heat exchanger of  claim 2 , wherein a direct water passing portion ( 113   e ) is formed at the partition ( 113 ) configured to define the other side surface of the heat exchanging part ( 100 ) to protrude toward the outer side of the heat exchanging part ( 100 ) and also to diagonally cross the other partition ( 113 ), and thus a flow cross-sectional area of the first direct water circulation passage ( 133 ) is expanded. 
     
     
         4 . The hot water heat exchanger of  claim 2 , wherein an external connection port ( 213 ) connected to the passing hole ( 101   a ) formed at one side of the partition ( 101 ), and an internal connection port ( 214 ) inserted into the external connection port ( 213 ) to be concentric with the external connection port ( 213 ) and connected to the heating water passing holes ( 102   b  and  103   b ) of the partitions ( 102  and  103 ) adjacent to the partition ( 101 ) are integrally formed at the first adaptor ( 210 ),
 the heating water introduced into the inlet port ( 211 ) is introduced into the first heating water circulation passage ( 131 ) through the space ( 215 ) between the external connection port ( 213 ) and the internal connection port ( 214 ), 
 an external connection port ( 224 ) connected to the direct water passing hole ( 101   c  and  102   c ) formed at the other side of the partition ( 101 ), and an internal connection port ( 223 ) inserted into the external connection port ( 224 ) to be concentric with the external connection port ( 224 ) and connected to the direct water passing holes ( 111   c  and  112   c ) of the partitions ( 111  and  112 ) adjacent to the partition ( 113 ) are integrally formed at the second adaptor  220 , and 
 the direct water introduced into the inlet port ( 221 ) is introduced into the first direct water circulation passage ( 133 ) through the space ( 225 ) between the external connection port ( 224 ) and the internal connection port ( 223 ). 
 
     
     
         5 . The hot water heat exchanger of  claim 4 , wherein the external connection port ( 213 ) of the first adaptor ( 210 ) and the heating water passing hole ( 101   a ) are connected through a first connection member ( 231 ),
 the internal connection port ( 214 ) of the first adaptor ( 210 ) and the heating water passing holes ( 102   b  and  103   b ) are connected through a second connection member ( 232 ) of which an end further protrudes toward an outer side of the first connection member  231  to define a space ( 231   a ), through which the heating water flows, between the first connection member ( 231 ) and the second connection member ( 232 ),   the external connection port ( 224 ) of the second adaptor ( 220 ) and the direct water passing holes ( 101   c  and  102   c ) are connected through a third connection member ( 241 ), and   the internal connection port ( 223 ) of the second adaptor ( 220 ) and the direct water passing holes ( 111   c  and  112   c ) are connected through a fourth connection member ( 242 ) of which an end further protrudes toward an outer side of the third connection member  241  to define a space ( 241   a ), through which the direct water flows, between the third connection member ( 241 ) and the fourth connection member ( 242 ).   
     
     
         6 . The hot water heat exchanger of  claim 5 , wherein an upper end of the first connection member  231  is welded around the direct water passing hole ( 101   c ) of the partition ( 101 ), and an upper end of the second connection member  232  is welded around the heating water passing holes ( 102   b  and  103   b ) of the partitions ( 102  and  103 ),
 an upper end of the third connection member  241  is welded around the direct water passing holes ( 101   c  and  102   c ) of the partitions ( 101  and  102 ), and an upper end of the fourth connection member  242  is welded around the direct water passing holes ( 111   c  and  112   c ) of the partitions ( 111  and  112 ), 
 an upper end of the external connection port ( 213 ) of the first adaptor ( 210 ) is inserted into a lower end of the first connection member ( 231 ) and an upper end of the internal connection port ( 214 ) of the first adaptor ( 210 ) is inserted into a lower end of the second connection member ( 232 ), such that airtightness is maintained by an O-ring, and 
 an upper end of the external connection port ( 224 ) of the second adaptor ( 220 ) is inserted into a lower end of the third connection member ( 241 ) and an upper end of the internal connection port ( 223 ) of the second adaptor ( 220 ) is inserted into a lower end of the fourth connection member ( 242 ), such that airtightness is maintained by an O-ring. 
 
     
     
         7 . The hot water heat exchanger of  claim 3 , wherein an external connection port ( 213 ) connected to the passing hole ( 101   a ) formed at one side of the partition ( 101 ), and an internal connection port ( 214 ) inserted into the external connection port ( 213 ) to be concentric with the external connection port ( 213 ) and connected to the heating water passing holes ( 102   b  and  103   b ) of the partitions ( 102  and  103 ) adjacent to the partition ( 101 ) are integrally formed at the first adaptor ( 210 ),
 the heating water introduced into the inlet port ( 211 ) is introduced into the first heating water circulation passage ( 131 ) through the space ( 215 ) between the external connection port ( 213 ) and the internal connection port ( 214 ), 
 an external connection port ( 224 ) connected to the direct water passing hole ( 101   c  and  102   c ) formed at the other side of the partition ( 101 ), and an internal connection port ( 223 ) inserted into the external connection port ( 224 ) to be concentric with the external connection port ( 224 ) and connected to the direct water passing holes ( 111   c  and  112   c ) of the partitions ( 111  and  112 ) adjacent to the partition ( 113 ) are integrally formed at the second adaptor  220 , and 
 the direct water introduced into the inlet port ( 221 ) is introduced into the first direct water circulation passage ( 133 ) through the space ( 225 ) between the external connection port ( 224 ) and the internal connection port ( 223 ).