Abstract
Wire-mesh mist eliminator is widely applied in sea water desalination apparatus because of the high economy and efficient removal of liquid droplets from vapor. Open literature on the research of demister performances with the wet working condition at atmosphere is limited. With this article, an experimental test apparatus and device were designed and established. The layered type eliminators made of stainless steel wires with the size of 0.1×0.4mm were 80mm in diameter. The study on steam vapor pressure drop of the wire mesh demister as a function of operating condition and design parameters was carried out. These factors include vapor velocity (2-10m/s), pad thickness (50-190mm), layer spacing (0.5-2mm). Experiments working medium was vapor-liquid at atmospheric pressure. The total pressure drop were found to increase with the increasing of vapor velocity, pad thickness and packing density, the specific pressure drop of each layer mesh pad declined until the vapor velocity increased and reached certain value and then increased with a further growth in vapor velocity. The optimum layer spacing of demister varies varies from 1-1.5mm under the experimental conditions.
