Based on numerical simulation

the single-stage separation efficiency

total separation efficiency and pressure drop of corrugated plates with double hook under thermal state conditions were studied.Results showed that

the vortex at the opening of double hook in corrugated plates caused the steam backflow

which enhanced the separation efficiency.When the entrance steam speed v was below 2 m/s

the separation efficiency was significantly increased as the v increasing

but if the v was larger than 2 m/s

the separation efficiency was tend to be steady.With the increase of v

the pressure drop was dramatically increased

and the separation efficiency also increased when the liquid drop size was larger than 10 μm but reduced when that was equal to 10 μm.The separated water from the corrugated plates mainly concentrated in the first two stages

and the separation efficiency of the last four stages decreased obviously.