| 摘要 |
1413579 Apparatus for separating oil and water BRUNSWICK CORP 13 March 1973 [17 March 1972] 11914/73 Heading B1D An oil-water separator comprises vertically abutting chambers 22, 26, 28, 30 through which the mixture flows in series from inlet 24, the lower chambers each enclosing a coalescing element 42, 64, 66 through which mixture flows outwards to reach the chamber proper, lowest chamber 30 having a water outlet 70 and all chambers having upper oil outlets. As shown, oil outlets 56, 82 are controlled by valves, and outlets 72, 74 return the oil from the lower chambers to aspirator 78 in inlet 24, by which the oil is broken up and recycled. The coalescing element 64 in chamber 28 may have a pore size of 20 microns and elements 42 and 66 may have pores of 40 microns. The elements can comprise concentric windings of nylon and polypropylene multifilament yarn. Alternatively (Fig 2, not shown) several fibres are wound together in a plurality of layers on a perforate spool, some fibres being crimped and/or loose and others tight to control density. Or sintered sheet material of stainless steel fibres is wound on a perforate tube (Fig. 4, not shown).
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