Patent ID: 8002866
Filing Date: 2011-08-23
Classification: F22B,Y10T

Abstract:
1. A steam-water separator comprising: a steam-water riser pipe that includes a plurality of openings on a wall surface at an upper end thereof and through which a two-phase flow of water and steam goes up; a swirl vane provided inside the steam-water riser pipe; a downcomer barrel which is disposed around the steam-water riser pipe to form an annular downcomer space; and a deck plate which is disposed on upper ends of the steam-water riser pipe and the downcomer barrel with a predetermined space therefrom such that the deck plate faces to the steam-water riser pipe and the downcomer barrel, the deck plate including an orifice arranged above the steam-water riser pipe, wherein an aperture ratio of the plural openings formed on the steam-water riser pipe is set at from 30% to 70%.