| 摘要 |
<p>The present invention is directed to a fog generator comprising a vessel that contains a fog generating fluid and a propellant gas for driving the fluid from the vessel into a heat exchanger which transforms the fog generating fluid into steam and is connected with the vessel, a means for ejecting the steam in the form of a fog and connected to the heat exchanger, and a means for purging non-ejected steam out of the heat exchanger into the ambient, wherein the means for purging comprise a connection from the propellant gas volume of the vessel to the heat exchanger for purging the heat exchanger with propellant gas, said connection comprising a valve for controlling the propellant gas purge flow, characterized in that the valve is suitable for switching between connecting the fog generating fluid volume of the vessel with the heat exchanger and connecting the propellant gas volume of the vessel with the heat exchanger.</p> |
