BHEL set to produce supercritical boilers

BHEL, Tiruchi, achieved a major landmark during 2012-13 by fully establishing all manufacturing processes for supercritical range of boilers. It has manufactured associated valves and piping products adaptable to the machine tools for handling larger sizes, intricate assemblies, and advanced materials, according to its annual report. By manufacturing 2.5 lakh valves, the Tiruchi unit has increased its volume of production by 18 per cent. Shop trial assemblies of hopper to furnace transition panels and hopper to spiral furnace wall panels were carried out for the first time. Unique components such as connecting sphere, mixing sphere, intricate burner panels, headers of 2.7-metre height, and wind box of 16.7-metre height weighing 42 tonnes were successfully manufactured for the first time for supercritical boilers. A record number of 300 coal feeders and over 150 wind boxes were dispatched during the year. Other components manufactured for the first time include P92 headers of 660 mm X 120 mm outer diameter and up to 120 mm wall thickness, P91 headers of up to 813 mm diameter, economiser coils from 135-metre-long tubes built up using straight tube butt joints and forged high pressure valves of F91 material. more at: http://www.thehindu.com/news/cities/Tiruchirapalli/bhel-set-to-produce-supercritical-boilers/article4653517.ece