LU Tai, WANG Bing School of Energy and Power Engineering. Injection stream based blowing of ash deposited on induced draft fan blade[J]. Thermal power generation, 2013, 42(7): 56-59.
LU Tai, WANG Bing School of Energy and Power Engineering. Injection stream based blowing of ash deposited on induced draft fan blade[J]. Thermal power generation, 2013, 42(7): 56-59.DOI:
A jet nozzle device was installed on the induced draft fan(IDF)to blowing the ash deposited on the blade.The Fluent software was used to simulate the static pressure distribution on non-working surface of the IDF blades with different inlet air speeds.The results showed that
during the variable-load operation of IDF
when the pressure at low pressure area of non-working surface of the blade reached the full load pressure
the ash deposition would be prevented.By comparison of static pressure distribution under different-load conditions
the corresponding optimal inlet air speed and flow of the nozzle were obtained.The ash blowing effect was kept and the energy consumption was reduced.