Special Work Department

Our specialists from the Special Work Department will perform a range of work on the inspection, repair, revamping, retrofitting and adjustment for the main internal turbine steam pipelines, steam extractions from cylinders, steam suctions from seals, feed pipeline, and the elements of support and suspension systems (SSS).

Within our package of services we will calculate the strength and self-compensation of pipelines with the issuance of a statement according to the RD 10-249-98 (ASTRA-STATS-11) guiding documents. A range of work related to support and suspension systems (SSS) of turbine generator steam pipes is mandatory according to the repair procedures for supports of all turbine generator types and guiding documents RD 34.30.506-90 Methodical guidelines for standardizing thermal expansions of steam turbine cylinders at thermal power plants.

MAIN ACTIVITIES:

• lnspecting steam pipelines and support and suspension systems (SSS) to clarify the route, to check for deflections and jamming, and to ensure compliance with the design;
• Checking the compliance of the installed springs with the project, their location and design, adjusting the springs of spring suspensions to meet the permissible and design loads;
• Determining the load on the support and suspension systems of steam pipelines (pipelines);
• Developing and implementing sets of technical measures to connect pipelines to the HPC and IPC of the turbine, followed by cold tightening and adjustment of suspension loads while replacing or dismantling HPC and IPC during repair work;
• Multi-stage adjustment for the support and suspension systems of the steam pipelines connected to HPC and IPC to normalize and equalize the loads on the HPC and IPC legs;
• Preparing and issuing the spring tightening data sheets for the suspension springs of the LS, HRH, CRH, FW steam pipelines, HPC bypass steam pipelines, extractions and others; drawing up a final report on work performed.