Heat Exchanger for Common Use for Boiler and Hot Water Supply

Abstract

A heat exchanger for common use for both a boiler and a hot water supply is provided, which includes a plurality of inner plate members ( 110 ) having inner plate member grooves formed on either side of the upper end thereof, and a burner provided on the bottom surface thereof, to thereby perform a combustion chamber function; combustion heat fin tubes ( 120 ) formed of a number of heat exchange tubes on the outer circumferential surface of which transfer heat fins are formed; an insulation member ( 130 ) which is installed in an identical area along the inner walls of the inner plate members; and an independent heat exchanger body which is connected with the combustion heat fin tubes. Thus, a heat exchanger for a condensing or noncondensing gas boiler can be manufactured at low cost, through the common heat exchanger Further, two kinds of heat exchangers can be manufactured through a single common heat exchanger to thereby make an additional process unnecessary.

1 . A heat exchanger for common use for a boiler and a hot water supply, the common heat exchanger comprising: 
 a plurality of inner plate members having inner plate member grooves formed on either side of the upper end thereof, and a burner provided on the bottom surface thereof, to thereby perform a combustion chamber function;    combustion heat fin tubes formed of a number of heat exchange tubes on the outer circumferential surface of which transfer heat fins are formed so that a heat exchange is performed by hot water flows in the transfer heat fins in which the combustion heat fin tubes are mounted into the inner plate member grooves provided in the inner plate members;    an insulation member which is installed in an identical area along the inner walls of the inner plate members; and    an independent heat exchanger body which is connected with the combustion heat fin tubes so that hot water can flow and is formed of a plurality of water tubes wound on the outer circumferential surfaces of the inner plate members.    
   
   
       2 . The common heat exchanger according to  claim 1 , further comprising an outer cover installed at the outermost portion of the heat exchanger body so as to surround the plurality of water tubes wound on the outer circumferential surfaces of the inner plate members.  
   
   
       3 . The common heat exchanger according to  claim 1  or  2 , wherein a structure of a condensing boiler is formed in the case that a latent heat exchanger having latent fin tubes absorbing latent heat in the latent heat exchanger body is independently combined on the upper portion of the heat exchanger body.  
   
   
       4 . The common heat exchanger according to  claim 3 , wherein a duct is formed between the heat exchanger body and the latent heat exchanger to thus make an exhaust gas smoothly flow.  
   
   
       5 . The common heat exchanger according to  claim 1  or  2 , wherein a structure of a non-condensing boiler having a relatively high output capacity is formed in the case that an auxiliary heat exchanger absorbing only combustion heat is independently combined on the upper portion of the heat exchanger body.