Assignment text
Oulun Energia Oy has awarded Pöyry with EPCM-services for the new Laanila OEBIO-project in Oulu, Finland. The construction of the new power plant will be completed in late 2020 and once in operation it will replace Toppila 1 unit. Capacity of the plant will be around 70 MW electricity and around 175 MW district heat with an option to supply steam to clients in the Laanila industrial area. The plant uses forest based biofuels, peat and solid recovered fuel (SRF) as fuels. This supply consists following piping systems:
— main steam (17,0 MPa, 562 degC), material X10CrMoVNb9-1, DN size up to 350,
— turbine bypass PV3, reductions PV4 and PV5 (17,0 MPa, 562 degC) X10CrMoVNb9-1, DN size up to 300,
— preheating pipes (17,0 MPa, 562 degC) X10CrMoVNb9-1, DN size up to 80,
— turbine bypass to DHE3 (0,8 MPa, 530 degC) 10CrMo9-10, DN size up to 1200,
— safety valve and silencer piping,
— drain piping with steam traps and header.