TH32650A - Methods and arrangements for generating superheated steam from saturated steam and steam power plants. - Google Patents

Abstract

For reliable superheated steam from saturated steam which can be performed In a simple way, according to this invention, the first partial flow, t1, of the saturated steam was adjusted to the preheated flow by a heat exchange. The steam turbine (2) is fed with such superheated blocking steam (SD) separated from the steam drum (24) of the stroke. Its steam / steam (34) is particularly low risk of corrosion, even during restart after nighttime shutdown.

Claims (3)

1. A method of blocking steam generation for the steam turbine (2) in which the first partial flow (t1) of the saturated steam separated from the steam drum (24) is reduced to pressure. First, it is superheated by heat exchange with the second partial flow (t2) of saturated steam. 2.Steam power plant (1) with a steam turbine (2) wherein the water / steam cycle (34) it has a steam drum (24) connected. A separate blocking steam pipe (40), which is connected to the steam drum (24), which is brought into the steam turbine (2), where in the blocked steam pipe (40), the heat exchanger (44 ), Which is connected on the primary side with the steam drum (24), it is connected on the secondary side. Through the pressure reducing element (42) 3. The use of steam blocking, which was followed in the method of claim 1 for starting the steam turbine (2) of the steam engine (1).