Combustion apparatus

Abstract

An exhaust channel of a combustion apparatus is defined by an upper sloping plate and a lower sloping plate. The lower sloping plate contains a rising part and a lower sloping wall. A water droplet baffle plate is positioned across an interspace from the rising part. The interspace is brought into fluid communication with the exhaust channel through an upper surface opening while being brought into fluid communication with a bottom of a heat exchange chamber through a communication opening. A collision wall part of the water droplet baffle plate is disposed in close proximity to a lowest fine tube so as to oppose against a combustion exhaust flow. Water droplets adhere onto the collision wall part. Water droplets failing to adhere to the collision wall part fall through the upper surface opening positioned over an upper end of the collision wall part.

1 . A combustion apparatus which comprises a latent heat exchanger and which is connected by an exhaust channel extending obliquely upward from an exhaust outlet port of a heat exchange chamber in which is housed said latent heat exchanger to an exhaust port situated higher relative to said exhaust outlet port,
 wherein said exhaust channel comprises an upper sloping plate and a lower sloping plate;   wherein said lower sloping plate comprises a rising part extending generally vertically from the bottom of said heat exchange chamber and a sloping part extending obliquely upward from the upper end of said rising part towards said exhaust port;   wherein a water droplet baffle plate is disposed across an interspace from said rising part and generally in parallel with said rising part, said water droplet baffle plate being situated nearer to said heat exchange chamber than said rising part; and   wherein said exhaust outlet port of said heat exchange chamber is defined by the upper end of said water droplet baffle plate and the lower end of said upper sloping plate.   
     
     
         2 . The combustion apparatus as set forth in  claim 1 ,
 wherein said interspace is brought into fluid communication with said exhaust channel through an upper surface opening which opens upward to said exhaust channel and wherein a communication opening in fluid communication with said interspace is provided between said water droplet baffle plate and the bottom of said heat exchange chamber.   
     
     
         3 . The combustion apparatus as set forth in  claim 1 ,
 wherein the lower end of said water droplet baffle plate is horizontally displaced out of a virtual vertical line extending vertically downward from the upper end of said water droplet baffle plate, whereby said water droplet baffle plate is at an oblique slant to be placed in an overhang state towards said heat exchange chamber.   
     
     
         4 . The combustion apparatus as set forth in  claim 1 ,
 wherein the upper end of said water droplet baffle plate is situated higher relative to the lowest front-end portion of said latent heat exchanger housed in said heat exchange chamber whereas the lower end of said water droplet baffle plate is situated lower relative to the aforesaid lowest portion of said latent heat exchanger.