GAO Mingshuai, ZHANG Hongxia, MA Tao, et al. Control optimization and runback analysis of steam-driven draft fans in a supercritical 350MW unit[J]. Thermal power generation, 2015, 44(4): 44-49.
GAO Mingshuai, ZHANG Hongxia, MA Tao, et al. Control optimization and runback analysis of steam-driven draft fans in a supercritical 350MW unit[J]. Thermal power generation, 2015, 44(4): 44-49.DOI:
According to performance of steam-driven draft fans in a supercritical 350 MW unit
the start control scheme of the steam-driven draft fans was designed.On the basis of furnace pressure control strategy of steam-driven draft fans in domestic units and combining with the characteristics and operating conditions of the steam-driven draft fans
the automatic and undisturbed switching of the entrance guide blade and turbine speed was improved.According to the process of run back(RB)test
the RB results were analyzed from aspects of flow mass conservation inside the furnace.Moreover
the reason why furnace pressure changed oppositely in RB test of steam-driven fans and in that of electrically driven fans was explained.