Instantaneous water heater

Abstract

The present invention relates to an instantaneous water heater corresponding to a water heater for sequentially heating water directly and indirectly to provide hot water while instantaneously heating the water to a required temperature, wherein the instantaneous water heater minimizes heat loss while enabling instantaneous hot water generation by increasing a heat exchange area. The present invention comprises: a body having a water introduction pipe through which raw water is introduced and a water discharge pipe through which hot water is discharged; a coil pipe connected to the water introduction pipe to allow the raw water to be introduced therethrough and having a lower pipeline for discharging the raw water introduced in the body; a heater for indirectly heating the water introduced in the coil pipe primarily and directly heating the water discharged from the body secondarily to generate hot water; and a steam module in which when the hot water is discharged, the steam of the hot water generated by the heater is introduced to discharge the hot water through the water discharge pipe while filling the steam pressure therein, and when the hot water is not discharged, the steam pressure is lowered.

1 . An instantaneous water heater comprising:
 a main body including a water inlet pipe through which raw water is introduced and a water outlet pipe through which hot water is discharged;   a coil pipe connected to the water inlet pipe to allow the raw water to be introduced and including a lower pipe that allows the raw water introduced into the main body to be discharged;   a heater that first indirectly heats the water introduced into the coil pipe and then directly heats the water discharged into the main body to generate hot water; and   a steam module that allows the hot water to be discharged through the water outlet pipe as the steam of the hot water generated through the heater is introduced to increase the steam pressure, and allows the steam pressure to decrease when the hot water is not being discharged.   
     
     
         2 . The instantaneous water heater of  claim 1 , wherein the steam module further comprises a chamber where a vacuum breaker is closed as the steam is introduced during use of hot water, allowing the steam pressure to rise, and the vacuum breaker is opened during non-use of hot water, allowing the steam pressure to dissipate. 
     
     
         3 . The instantaneous water heater of  claim 2 , wherein the inlet pipe and the water outlet pipe pass through the chamber, and the water outlet pipe passing through the chamber further comprises a steam hole that allows the steam of the hot water to be introduced into the chamber. 
     
     
         4 . The instantaneous water heater of  claim 2 , wherein the chamber further comprises a collection unit that collects the water generated by the steam introduced into the chamber, allowing the collected water to be returned into the main body. 
     
     
         5 . The instantaneous water heater of  claim 1 , wherein the steam module further comprises a vacuum breaker that is closed when the steam is introduced into the chamber and fills it with an appropriate steam pressure and is opened when the steam inflow is blocked to cause the steam pressure to decrease. 
     
     
         6 . The instantaneous water heater of  claim 1 , wherein the main body further comprises a partition for blocking the flow of the raw water discharged from the lower pipe. 
     
     
         7 . The instantaneous water heater of  claim 6 , wherein the partition further comprises a separation flow path formed laterally between the partition and the inner wall of the main body to allow the raw water to move from the second space to the first space. 
     
     
         8 . The instantaneous water heater of  claim 1 , wherein the coil pipe further comprises a lower pipe that allows the raw water to be discharged into the main body using one or more discharge holes formed in a circumferential direction, forming a fluid flow pattern of the raw water flowing into the main body. 
     
     
         9 . The instantaneous water heater of  claim 8 , wherein the lower pipe is formed to extend in the circumferential direction inside the second space partitioned by the partition. 
     
     
         10 . The instantaneous water heater of  claim 1 , comprising one or more heaters arranged at regular intervals, each having a thickness that is determined depending on low or high current. 
     
     
         11 . The instantaneous water heater of  claim 1 , wherein the main body further comprises a sensor member in which a temperature-measuring side and a water presence-measuring side are integrally formed.