| 摘要 |
A three phase centrifugal separator for separating the components of a fluid mixture of oil, water and gas, consisting of a cylindrical drum rotatably mounted within a pressure vessel. Two liquid phase holding tanks connected to the pressure vessel are also maintained under pressure. The drum has an initial separation chamber which separates gaseous phase fluids from liquid phase fluids. Water is forced to the outer circumference of the drum by centrifugal force and forms a water zone within the confines of a first and a second annular weirs. The first annular weir is lower than the second annular weir such that water is retained in the water zone until the level of the first annular weir is attained, thereafter any additional water entering the water zone results in a migration of water between the drum and the first annular weir to a water phase outlet. Oil is forced into a water/oil interface on top of the water zone by centrifugal force. An oil passage is provided between the second annular weir and the second end of the drum. The second annular weir serves as a spillway whereby oil passes over the second annular weir to the oil passage leading to an oil phase outlet. Peripheral gas passages are provided at the second end of the drum. Gas flows from the primary separation chamber of the drum via the gas passages to a gas phase outlet.
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