Method for operating a recirculating waste heat steam generator, recirculating waste heat steam generator and gas and steam turbine power generation plant

摘要

patent summary: "method for operating a recirculating waste heat steam generator". The invention relates to a method for operating a recirculating waste heat steam generator (1), wherein at a pressure stage of the recirculating waste heat steam generator (1) the feed water mass flow is guided. based on a specified desired value in order to control the water level in a drum (8). said method should give a recirculating waste heat generator a particularly high degree of efficiency and at the same time a particularly high level of operational flexibility. For this purpose, the thermal input introduced into a pressure stage evaporator (12) is used as an input variable in determining the desired value.