If the exhaust system is under a vacuum, the casing must be warmed by gradually introducing the steam, after opening the exhaust valve.
如果排气系统处于真空下,必须在打开排气阀后,逐渐引蒸汽来加热壳体。
2
By means of these expressions, formulas for calculating the axial and radial forces on the casing are derived and then the influence of steam flooding on casing strength is qualitatively analyzed.