Submerged burner furnace
OwnerJoseph M. Schallertinventor
Life of this patent
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Abstract
A direct contact gas-liquid heater has a tank filled with a liquid, a submerged burner and a gas distributor. The heater burns a fuel air mixture producing hot gas which is bubbled up through the liquid. A system of liquid level raising and lowering pods or a bellows and reservoir prevents the liquid from sumping back through the gas distribution system to drown the burner when the burner is shut off. The heater has a vacuum pump in the exhaust conduit to create a continuous draft for the gas bubbling up through the liquid and baffles to disentrain liquid from the exhaust gases.
Claims10
A direct contact liquid-gas heater having a tank to contain a liquid medium, means to maintain the liquid medium at a desired level in the tank, a combustion chamber enclosing a burner submerged in the liquid medium, plenum means communicating with the combustion chamber to direct the flow of gases produced by the burner to a distribution means, the distribution means having means to break the gas into streams of bubbles and release them into the liquid medium, "the tank having cooperating means to automatically prevent sumping of the liquid medium through the distribution means and plenum means to reach the combustion chamber," and means in the top of the tank to remove entrained liquid from gas as an exhausting means exhausts it from the tank.
Dependencies are inferred from the claim text.