Steam generator comprising an improved feedwater supply device

Abstract

The steam generator comprises a cylindrical outer jacket (,) arranged with its axis vertical, a bundle wrapper (,) arranged coaxially with respect to the outer jacket and a space (,) in which feed water can flow between the bundle wrapper (,) and the outer jacket (,) or a guide skirt (,). A water supply device (,) placed towards the top of the space (,) in which the feedwater flows comprises a torus-shaped manifold (,), the upper wall of which is traversed by a number of flow openings (,) distributed in the circumferential direction of the manifold (,). A feed pipe (,) opens into the manifold and the feedwater is guided by a guide device towards the annular flow space (,). Radial dividing walls (,) are arranged transversely in a water flow space delimited between the manifold (,) and the guide device (,).