Development of the system to control the process of oil emulsion dynamic sediment
Some new method and algorithm applied for control over dynamic sedimentation of emulsified water drops of oil emulsion of is developed on the basis of heat balance and geometrical features of horizontal cylindrical settlers. Mechanism of the proposed method of oil emulsion dynamic sediment includes redistribution of the flow that promotes cyclic flow change of oil emulsion in the settler and oscillatory motion (compression and expansion) of intermediate emulsion layers causing decomposition of armored coverings, coalescence of emulsified water drops and transfer of mechanical additives into water cushion of the settler. This results in quality increase of market oil (content of water and mineral salts in the prepared oil reduces) and risk decrease of settlers’ over-flooding. In the settler where oil emulsion amount exceeds its average value as a result of cyclic redistribution, intermediate emulsion layer expands, kinetic energy increases thus leading to efficiency raise of collision among drops causing decomposition of armored coverings and coalescence of drops. If oil emulsion amount is less than its average value the intermediate emulsion layer shrinks, the distance among drops, causing coalescence of drops and increase of oil preparation efficiency reduces.