Process and equipment for heating a liquid without pollution of the environment

Abstract From the Canadian patent

A process and apparatus for heating a liquid by direct contact with hot combustion gases which avoids release of pollutants into the environment is described. The lower section of a flame tube, in which a burner generates a flame protrudes into, the water contents, which contains an absorbent of a water tank. The hot combustion gases are drawn into the water and set in turbulent motion by means of a rotor, whereby a long residence time and large contact areas result. The purified gases leave the water tank through an outlet. The heat generated within the water contents is removed through a tube coil through which a liquid flows. The equipment is uncomplicated and inexpensive and, ensures …