Method of operating a vapour generating system.

摘要

In a method of operating a vapour generating system including a once-through vapour generator (10), wet vapour is generated in the upper portion of the load range and superheated vapour is generated in the lower portion of the load range. Generated vapour is passed through a moisture separator (11) external to and remote from the vapour generator (10). Superheated vapour is desuperheated by liquid injection via a spray device (13) as it passes via a pipe line (46) from the vapour generator (10) to the moisture separator (11).