Patent ID: 7640749

Claim:
An apparatus for separating moisture from and reheating steam in a cycle of a steam turbine plant comprising: a substantially horizontal, elongated, casing having an entry end for receiving the cycle steam and an exit end opposite the entry end; a moisture separator arranged inside the substantially horizontal elongated casing and constituting a path through which the cycle steam passes to be processed; a lower tapered duct extending longitudinally within the casing; overlapped cylindrical segments in the casing and at a bottom of the lower tapered duct to form annular spaces inwardly of the casing and between cylindrical segments so that all of the annular spaces provide a passage to conduct intercepted or separated moisture to at least one drain at the bottom of cylindrical casing; a succession of reheaters of progressively higher temperature arranged contiguous to and above the moisture separator, the reheaters being defined by bundles of straight reheater tubes; a baffle that induces a flow of reheating steam to each of the reheater tubes in proportion to an estimated thermal duty imposed at the exterior of respective rows of tubes; the moisture separator and reheaters having a reheating steam header and a reheating condensate header near the entry and exit ends respectively of the elongated casing through which the cycle steam passes, the reheating steam header defining a highest elevation part of the moisture separator and reheaters and the condensate header defining a lowest elevation part of the moisture separator and reheaters; the tapered duct being formed in the cavity below the moisture separators and above the final tube bundle of the reheaters; at least one drain provided at the bottom of the elongated casing; and an arrangement of horizontal baffles, adjacent to the moisture separator and reheaters, that directs the flow of cycle steam through said moisture separator and said reheater.