Method and device for compensating line frequency disturbances in a steam power plant block having heat supply from cogeneration

摘要

For the purpose of rapid provision of power in a steam power plant, the invention proposes for the purpose of compensating line frequency disturbances that heating condensers temporarily available for district heating water should not be heated or should be heated at reduced power. The steam thereby remaining in the turbine increases the turbine output. In order to keep down the material stress due to temperature differences in the heating condensers, provision is made for the district heating water to bypass the heating condensers. The bypass is controlled as a function of measured metal temperatures at representative points in the heating condensers, or as a function of the temperature differences determined. IMAGE