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US 6,206,047 B1Granted
Flow duct for the passage of a two-phase flow
AssigneeAsea Brown Boveri AG
InventorJakob Keller
Life of this patent
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Abstract
A flow duct for the passage of a two-phase flow which has a liquid and a gaseous phase is described, comprising an inner wall completely enclosing the two-phase flow radially to the direction of flow. The invention is distinguished by the fact that raised contours are provided on the inner wall of the flow duct, and these raised contours are attached to the inner wall essentially perpendicularly to the direction of flow and are at a distance from one another in the direction of flow.
Claims9
A flow duct for the passage of a two-phase flow which has a liquid and a gaseous phase, comprising:
- an inner wall completely enclosing the two-phase flow radially to the direction of the flow;
- raised contours being provided on the inner wall of the flow duct, said raised con tours being attached to the inner wall essentially perpendicularly to the direction of flow and are at a distance from one another in the direction of flow;
- each of said contours having a contact surface which is at a distance from the inner wall of the flow duct and against which the two-phase flow bears;
- and
- each of said contours, at least in regions of said contact surfaces, having a profile formed in the direction of flow so that the two-phase flow flows over the contact surfaces largely tangentially.
2 more elements
Dependencies are inferred from the claim text.