Features of the operation of boiler equipment at minimum loads

At industrial enterprises built in the former USSR, capacity of installed boiler equipment was determined based on projected growth heat loads. Due to decline production enterprises, consumption thermal energy is also reduced, and there a problem prolonged operation steam hot water boilers at minimum The operational personnel different solve this practice their own way, without being aware possible consequences these regimes, which are not provided for by manufacturers. article analyses risks transfer one burner associated with occurrence condensate, leads destruction exhaust duct chimney. high-sulphur fuel oil loads conditions created formation sulphuric acid flue gases flow corrosion tail surfaces heating. examples PTMV-50 DE-25-14 show that as load decreases loss increases efficiency decreases. It noted nature change depends design boiler. Recommendations modernization operating given. stated final decision possibility below those permitted manufacturers can be made only after special tests control circulation steam-water mixture heating surface circuits. draws conclusions results research real Kirov region.