Experiments on Performance of Corrugated-plate Separator in the Drum of Waste Heat Boiler

Cold-state experiments were performed to the no-hook, single-hook and double-hook corrugated-plate separator in the drum of waste heat boiler, so as to study the total separation efficiency, single-stage separation efficiency, inlet droplet size, outlet droplet size and the resistance coefficient at different inlet air velocities. Results show that the corrugated-plate separator with double hooks has the highest total separation efficiency among all the three separators, and their critical film-breaking velocities are 2 m/s, 5 m/s and 7 m/s, respectively; for both the no-hook and double-hook corrugated-plate separator, the single-stage separation efficiency at first three stages is far more than at last three stages; for the single-hook corrugated-plate separator, the single-stage separation efficiency increases significantly at the last three stages with the rise of inlet air velocity, especially at the sixth stage; for all the three separators, the outlet droplet size rises quickly at the critical film-breaking velocity; the resistance coefficient of single-hook corrugated-plate separator is far greater than that of no-hook and double-hook one. Based on overall consideration, the double-hook corrugated-plate separator is proved to have the best performance among all the three types.