| 摘要 |
<p>997,712. Countercurrent contacting of liquids; cyclone separators ; gravity separation apparatus. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 18, 1962 [May 19, 1961 ; April 19, 1962 ; April 20, 1962], No. 19264/62. Headings B1D, B1F and B2P. A cyclone for the separation of two phases in which the light phase is preponderant comprises an inlet 34, Fig. 2, for introducing dispersion at a flow velocity corresponding to a Reynolds number of less than 7,000. The heavy phase follows the path f, to the bottom chamber 33 through the opening 35 which is designed to reduce the rotational motion to zero. The heavy phase droplets entrained in the light phase (direction f 2 ) follow paths f 3 , f 4 (after passage through a packing 40) and f 5 and fall to the bottom chamber while the light phase passes out at 44. The flow of heavy phase from chamber 33 to the outlet is controlled by float valve 49 which is responsive to the delivery rate. Light settled phase from chamber 33 flows upwards in direction f 7 . In Fig. 3 (not shown) the heavy phase preponderates and the control valve is located at the top of the cyclone. Mixed phases are injected into the chamber 101, Fig. 4, and under the influence of the increase in cross-sectional area the heavy phase droplets 106 increase in size and recycle before discharge through the outlet 110. A plant for countercurrent contacting of liquid phases, Fig. 1, has a number of cascade stages which comprise ejector nozzles 2, 11 and 17, coalescing tubes 5, Fig. 4, and separators 6, 15a and 13, Fig. 2, which are fitted with automatic means for regulating the outflow rates of the fluids.</p> |
