General Electric Company
Piping layout for water steam cycle system of combined cycle power plant

Abstract:

A piping layout for a water steam cycle (WSC) system of a combined cycle power plant is disclosed. The piping layout includes a first steam flow pipe delivering steam from a steam source to a high pressure (HP) segment of the ST system. The first flow pipe includes a first vertically oriented thermal expansion portion. The WSC system may also include a second steam flow pipe delivering steam from the steam source to an intermediate pressure (IP) segment of the ST system. It may also include a third steam flow pipe delivering steam from HP segment of the ST system to a steam source. The vertically oriented thermal expansion portion(s) may be positioned immediately upstream of the admission valve of the respective segment and/or immediately downstream from an outlet of the steam source.