The paper presents the analyze the lifetime of the HP steam turbine hull for the EC Gdynia TG1 combined heat and power plant as part of the renovation. The impact of exploitation on changes in mechanical properties of the steam turbine hulls was determined. At the preliminary material tests were carried out, qualifying the hull of the steam turbine to undertake the revitalization process. Then, after non-destructive testing, trepanation samples were taken from the cold zone and the hot hull, which were subjected to mechanical properties tests. The next stage of work was the revitalization process including hardening and tempering. The mechanical properties and metallographic were carried out testing. In the next stage of work, non-destructive testing was performed to detect cracks and a decision was made to repair these areas by welding. The last stage of the work includes an analysis of the vitality of the steam turbine hull after revitalization.
The Possibility of Extending the Life of Cast Steel Hulls of the Steam Turbine
2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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