Hot-water supply heat exchanger provided with a mixing valve, and adaptor having a built-in mixing valve

Abstract

A hot-water supply heat exchanger having a mixing valve and a mixing valve integrated adopter are provided to facilitate control of hot water temperature with a simplified pipe structure. A hot-water supply heat exchanger comprises a heat exchange part ( 100 ), a heating water inlet ( 212 ), a heating water outlet ( 214 ), a cold water inlet ( 222 ), a hot water outlet ( 224 ), and a mixing valve ( 230 ). The heat exchange part allows heat exchange between hot water provided from a main heat exchanger ( 20 ) with cold water. The heating water inlet draws hot water into the heat exchanger. The to heating water outlet discharges the hot water heat-exchanged by the heat exchanger. The cold water inlet draws the cold water into the heat exchange part. The hot water outlet discharges the cold water that is heat-exchanged with heating water in the heat exchange part. The mixing valve mixes the hot water discharged through the hot water outlet with cold water provided from the cold water inlet.

1 . A hot-water supply heat exchanger comprising:
 a heat exchange part ( 100 ) configured to heat-exchange heating water supplied from a main heat exchanger ( 20 ) with cold water;   a heating water inlet ( 212 ) configured to introduce the heating water into the heat exchange part ( 100 );   a heating water outlet ( 214 ) configured to discharge the heating water after heat exchange with the cold water in the heat exchange part ( 100 );   a cold water inlet ( 222 ) configured to introduce the cold water into the heat exchange part ( 100 );   a hot water outlet ( 224 ) configured to discharge hot water generated by heat-exchanging the cold water with the heating water in the heat exchange part ( 100 ); and   a mixing valve ( 230 ) configured to mix cold water introduced from the cold water inlet ( 222 ) with the hot water discharged through the hot water outlet ( 224 ).   
     
     
         2 . The hot-water supply heat exchanger according to  claim 1 , wherein the heating water inlet ( 212 ) and the heating water outlet ( 214 ) are integrally formed with a first adapter ( 210 ) coupled to one side of the heat exchange part ( 100 ),
 the cold water inlet ( 222 ) and the hot water outlet ( 224 ) are integrally formed with a second adapter ( 220 ) coupled to the other side of the heat exchange part ( 100 ), and   the mixing valve ( 230 ) is integrally formed with the second adapter ( 220 ).   
     
     
         3 . The hot-water supply heat exchanger according to  claim 2 , wherein a through-hole ( 222   a ) is formed in the cold water inlet ( 222 ) to communicate with the inside of the hot water outlet ( 224 ), and
 the mixing valve ( 230 ) is constituted by a valve unit ( 231 ) configured to open and close the through-hole ( 222   a ) and a drive unit ( 232 ) configured to drive the opening and closing of the valve unit ( 231 ).   
     
     
         4 . The hot-water supply heat exchanger according to  claim 2 , wherein an inlet extension ( 213 ) connected to the heating water inlet ( 212 ) to pass through a side portion of a body ( 211 ) and connected to heating water circulation paths ( 131 ,  132 ) in the heat exchange part ( 100 ) through an inner space of the body ( 211 ) is formed at the first adapter ( 210 ), and
 the heating water heat-exchanged in the heat exchange part ( 100 ) is returned to a heating pipe through the heating water outlet ( 214 ) of the first adapter ( 210 ) via the inlet extension ( 213 ) of the first adapter ( 210 ).   
     
     
         5 . The hot-water supply heat exchanger according to  claim 2  or  4 , wherein a returned heating water connecting port ( 216 ) into which returned heating water cooled after circulating a place to be heated is introduced is formed at the side portion of the body ( 211 ) of the first adapter ( 210 ), and the returned heating water introduced through the returned heating water connecting port ( 216 ) is discharged through the heating water outlet ( 214 ) of the first adapter ( 210 ). 
     
     
         6 . The hot-water supply heat exchanger according to  claim 2  or  4 , wherein water feed valve connecting ports ( 215 ,  225 ) connected to a water feed valve ( 300 ) are formed at side portions of the bodies ( 211 ,  221 ) of the first adapter ( 210 ) and the second adapter ( 220 ), and
 when the water feed valve ( 300 ) is opened to supplement heating water into a heating pipe of a boiler, hot water passing through cold water circulation paths ( 133 ,  134 ) in the heat exchange part ( 100 ) sequentially passes the water feed valve connecting port ( 225 ) of the second adapter ( 220 ), the water feed valve ( 300 ), and the water feed valve connecting port ( 215 ) of the first adapter ( 210 ), and then, is supplied to the heating pipe. 
 
     
     
         7 . An adapter integrated with a mixing valve comprising:
 an adapter ( 220 ) integrated with a cold water inlet ( 222 ) configured to introduce cold water into a heat exchange part ( 100 ), in which heating water supplied from a main heat exchanger ( 20 ) is heat-exchanged with the cold water, and a hot water outlet ( 224 ) configured to discharge hot water generated by heat-exchanging the cold water with the heating water in the heat exchange part ( 100 ); and   a mixing valve ( 230 ) integrated with the adapter ( 220 ) to mix cold water introduced from the cold water inlet ( 222 ) with the hot water discharged through the hot water outlet ( 224 ).   
     
     
         8 . The adapter integrated with a mixing valve according to  claim 7 , wherein a to through-hole ( 222   a ) is formed in the cold water inlet ( 222 ) to communicate with the inside of the hot water outlet ( 224 ), and
 the mixing valve ( 230 ) is constituted by a valve unit ( 231 ) configured to open and close the through-hole ( 222   a ) and a drive unit ( 232 ) configured to drive the opening and closing of the valve unit ( 231 ).