MA Biao, LI Yanjun, GUO Jiamin, et al. Dynamic characteristics simulation of steam supplying system in different steam charging ways[J]. CIESC Journal, 2016, (S1): 326-333.
MA Biao, LI Yanjun, GUO Jiamin, et al. Dynamic characteristics simulation of steam supplying system in different steam charging ways[J]. CIESC Journal, 2016, (S1): 326-333.DOI: 10.11949/j.issn.0438-1157.20160528.
With steam supplying system as the object of the research
the mathematical models are based on the lumped parameter theory. The study has been carried out in two different charging ways. One of them is charging valve in Auto-Control and the other is bypass valve in Auto-Control. The simulation results show as follows.The time to complete three times charging and discharging is 76.3 seconds when bypass valve is in Auto-Control. The time to complete three times charging and discharging is 62.9 seconds when charging valve is in Auto-Control. 4.5 seconds have been saved for each charging when charging valve is in Auto-Control. The key parameters maintain relatively stable during the charging period in both charging ways. The main parameters have relatively larger fluctuations when the two valves are being switched on. But the main parameters are less than 0.2 MPa. In the same charging way
the fluctuation of drum pressure is less than the fluctuation of superheated steam pressure
and the fluctuation of superheated steam pressure is less than the fluctuation of steam supplying pipe pressure.