With boiler-steam accumulator system as the object of the research

the purpose of this paper is to investigate the dynamic characteristics of this system under two different conditions of steam charging and discharging by the way of combination between simulation and experiment

the mathematical models are based on the lumped parameter theory. The calculation results demonstrate that the established model can correctly reflect the dynamic characteristics of this system

and provide some references for the optimal design and safe operation of the system. Further analysis shows that the steam accumulator needs 57 s to charge steam from the lower limit to the upper limit of pressure in the continuous process of steam charging and discharging

but 67 s in the intermittent process

which is longer obviously. At the same time

for some using steam occasions of periodic intermittent or instant

the effect of the continuous steam charging and discharging is more significant in terms of eliminating large fluctuation of load in the steam boiler

stabilizing pressure

improving the efficiency of the boiler

etc.