| 摘要 |
<p>A method and a device for heating a liquid in a continuous process, wherein the liquid is moved in downward direction in a free fall from a supply plate in a closed vessel, and carried out of said vessel via a discharge valve. Steam for heating the falling liquid is introduced into the vessel, which steam at least partially condenses in the liquid. Liquid is collected in a container at the bottom of the vessel, which liquid is stored in said container for some time before being discharged via the discharge valve. The level of the liquid in the container is measured, and the discharge valve is controlled in dependence on said liquid level, wherein the liquid level can be maintained at a constant predetermined value.</p> |
