Reconstruction of feeding water pipelines with mounting of bridge connecting the second and third turns of PTK-1 of Nizhnekamsk CHPP

According to in initial layout al of the three turns of CHPP were connected by the trunk steam pipeline 140 аtа. Regarding the feeding water this connection was absent. During operation frequent are the cases when the steam flows from III to I, II turns. As a result of turbine PVD, the I, II turns are unloaded, and turbine PVD of III turn are reloaded. The consequence of such regime is the under-heating of the feeding water at the III turn.

Besides, mounting of the bridge of feeding water and installation of hydro - clutch produced by VOITH on one of the feeding pumps will increase reliability and cost-efficiency of equipment operation of III turn and the power plant in total. The sags regarding pressure of feeding water in feeding tract are removed, decreases the electricity consumption for own needs of CHPP. Pressure differential at boiler RPK decreases by 10 -14 kgs/cm².

Expected savings of electricity is at the level of 10 million kWh per year.

The work completed in 2006.